cc4c33320d
nsCSSDeclaration.cpp nsCSSParser.cpp nsCSSPropList.h nsCSSStyleRule.cpp nsICSSDeclaration.h nsIStyleContext.h nsStyleContext.cpp nsCSSRendering.cpp The (small) changes in nsCSSRendering.cpp are temporary. It's just to reflect the changes made elsewhere in the style context. The code that actually draws the RoundRect with a different radius for each corner will be implemented later today. git-svn-id: svn://10.0.0.236/trunk@56388 18797224-902f-48f8-a5cc-f745e15eee43
2958 lines
104 KiB
C++
2958 lines
104 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#include "nsCSSRendering.h"
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#include "nsStyleConsts.h"
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#include "nsIPresContext.h"
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#include "nsIImage.h"
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#include "nsIFrame.h"
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#include "nsPoint.h"
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#include "nsRect.h"
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#include "nsIViewManager.h"
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#include "nsIPresShell.h"
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#include "nsIFrameImageLoader.h"
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#include "nsIStyleContext.h"
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#include "nsStyleUtil.h"
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#include "nsIScrollableView.h"
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#include "nsLayoutAtoms.h"
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#include "nsIDrawingSurface.h"
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#include "nsTransform2D.h"
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#include "nsIDeviceContext.h"
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static NS_DEFINE_IID(kScrollViewIID, NS_ISCROLLABLEVIEW_IID);
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#define BORDER_FULL 0 //entire side
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#define BORDER_INSIDE 1 //inside half
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#define BORDER_OUTSIDE 2 //outside half
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//thickness of dashed line relative to dotted line
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#define DOT_LENGTH 1 //square
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#define DASH_LENGTH 3 //3 times longer than dot
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/** The following classes are used by CSSRendering for the rounded rect implementation */
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#define MAXPATHSIZE 12
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#define MAXPOLYPATHSIZE 1000
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enum ePathTypes{
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eOutside =0,
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eInside,
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eCalc,
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eCalcRev
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};
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static void GetPath(nsPoint aPoints[],nsPoint aPolyPath[],PRInt32 *aCurIndex,ePathTypes aPathType,PRInt32 &aC1Index,float aFrac=0);
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static void TileImage(nsIRenderingContext& aRC,nsDrawingSurface aDS,nsRect &aSrcRect,PRInt16 aWidth,PRInt16 aHeight);
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// Draw a line, skipping that portion which crosses aGap. aGap defines a rectangle gap
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// This services fieldset legends and only works for coords defining horizontal lines.
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void nsCSSRendering::DrawLine (nsIRenderingContext& aContext,
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nscoord aX1, nscoord aY1, nscoord aX2, nscoord aY2,
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nsRect* aGap)
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{
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if (nsnull == aGap) {
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aContext.DrawLine(aX1, aY1, aX2, aY2);
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} else {
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nscoord x1 = (aX1 < aX2) ? aX1 : aX2;
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nscoord x2 = (aX1 < aX2) ? aX2 : aX1;
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nsPoint gapUpperRight(aGap->x + aGap->width, aGap->y);
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nsPoint gapLowerRight(aGap->x + aGap->width, aGap->y + aGap->height);
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if ((aGap->y <= aY1) && (gapLowerRight.y >= aY2)) {
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if ((aGap->x > x1) && (aGap->x < x2)) {
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aContext.DrawLine(x1, aY1, aGap->x, aY1);
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}
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if ((gapLowerRight.x > x1) && (gapLowerRight.x < x2)) {
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aContext.DrawLine(gapUpperRight.x, aY2, x2, aY2);
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}
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} else {
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aContext.DrawLine(aX1, aY1, aX2, aY2);
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}
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}
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}
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// Fill a polygon, skipping that portion which crosses aGap. aGap defines a rectangle gap
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// This services fieldset legends and only works for points defining a horizontal rectangle
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void nsCSSRendering::FillPolygon (nsIRenderingContext& aContext,
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const nsPoint aPoints[],
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PRInt32 aNumPoints,
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nsRect* aGap)
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{
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if (nsnull == aGap) {
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aContext.FillPolygon(aPoints, aNumPoints);
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} else if (4 == aNumPoints) {
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nsPoint gapUpperRight(aGap->x + aGap->width, aGap->y);
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nsPoint gapLowerRight(aGap->x + aGap->width, aGap->y + aGap->height);
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// sort the 4 points by x
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nsPoint points[4];
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for (PRInt32 pX = 0; pX < 4; pX++) {
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points[pX] = aPoints[pX];
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}
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for (PRInt32 i = 0; i < 3; i++) {
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for (PRInt32 j = i+1; j < 4; j++) {
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if (points[j].x < points[i].x) {
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nsPoint swap = points[i];
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points[i] = points[j];
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points[j] = swap;
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}
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}
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}
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nsPoint upperLeft = (points[0].y <= points[1].y) ? points[0] : points[1];
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nsPoint lowerLeft = (points[0].y <= points[1].y) ? points[1] : points[0];
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nsPoint upperRight = (points[2].y <= points[3].y) ? points[2] : points[3];
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nsPoint lowerRight = (points[2].y <= points[3].y) ? points[3] : points[2];
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if ((aGap->y <= upperLeft.y) && (gapLowerRight.y >= lowerRight.y)) {
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if ((aGap->x > upperLeft.x) && (aGap->x < upperRight.x)) {
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nsPoint leftRect[4];
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leftRect[0] = upperLeft;
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leftRect[1] = nsPoint(aGap->x, upperLeft.y);
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leftRect[2] = nsPoint(aGap->x, lowerLeft.y);
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leftRect[3] = lowerLeft;
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aContext.FillPolygon(leftRect, 4);
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}
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if ((gapUpperRight.x > upperLeft.x) && (gapUpperRight.x < upperRight.x)) {
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nsPoint rightRect[4];
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rightRect[0] = nsPoint(gapUpperRight.x, upperRight.y);
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rightRect[1] = upperRight;
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rightRect[2] = lowerRight;
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rightRect[3] = nsPoint(gapLowerRight.x, lowerRight.y);
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aContext.FillPolygon(rightRect, 4);
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}
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} else {
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aContext.FillPolygon(aPoints, aNumPoints);
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}
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}
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}
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/**
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* Make a bevel color
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*/
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nscolor nsCSSRendering::MakeBevelColor(PRIntn whichSide, PRUint8 style,
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nscolor aBackgroundColor,
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nscolor aBorderColor,
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PRBool aSpecialCase)
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{
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nscolor colors[2];
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nscolor theColor;
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// Given a background color and a border color
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// calculate the color used for the shading
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if(aSpecialCase)
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NS_GetSpecial3DColors(colors, aBackgroundColor, aBorderColor);
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else
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NS_Get3DColors(colors, aBackgroundColor);
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if ((style == NS_STYLE_BORDER_STYLE_BG_OUTSET) ||
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(style == NS_STYLE_BORDER_STYLE_OUTSET) ||
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(style == NS_STYLE_BORDER_STYLE_RIDGE)) {
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// Flip colors for these two border style
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switch (whichSide) {
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case NS_SIDE_BOTTOM: whichSide = NS_SIDE_TOP; break;
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case NS_SIDE_RIGHT: whichSide = NS_SIDE_LEFT; break;
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case NS_SIDE_TOP: whichSide = NS_SIDE_BOTTOM; break;
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case NS_SIDE_LEFT: whichSide = NS_SIDE_RIGHT; break;
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}
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}
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switch (whichSide) {
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case NS_SIDE_BOTTOM:
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theColor = colors[1];
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break;
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case NS_SIDE_RIGHT:
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theColor = colors[1];
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break;
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case NS_SIDE_TOP:
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theColor = colors[0];
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break;
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case NS_SIDE_LEFT:
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default:
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theColor = colors[0];
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break;
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}
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return theColor;
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}
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// Maximum poly points in any of the polygons we generate below
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#define MAX_POLY_POINTS 4
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// a nifty helper function to create a polygon representing a
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// particular side of a border. This helps localize code for figuring
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// mitered edges. It is mainly used by the solid, inset, and outset
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// styles.
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//
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// If the side can be represented as a line segment (because the thickness
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// is one pixel), then a line with two endpoints is returned
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PRIntn nsCSSRendering::MakeSide(nsPoint aPoints[],
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nsIRenderingContext& aContext,
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PRIntn whichSide,
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const nsRect& outside, const nsRect& inside,
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PRIntn aSkipSides,
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PRIntn borderPart, float borderFrac,
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nscoord twipsPerPixel)
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{
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float borderRest = 1.0f - borderFrac;
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PRIntn np = 0;
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nscoord thickness, outsideEdge, insideEdge, outsideTL, insideTL, outsideBR,
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insideBR;
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// Initialize the following six nscoord's:
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// outsideEdge, insideEdge, outsideTL, insideTL, outsideBR, insideBR
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// so that outsideEdge is the x or y of the outside edge, etc., and
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// outsideTR is the y or x at the top or right end, etc., e.g.:
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//
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// outsideEdge --- ----------------------------------------
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// \ /
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// \ /
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// \ /
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// insideEdge ------- ----------------------------------
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// | | | |
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// outsideTL insideTL insideBR outsideBR
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//
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// if we don't want the bevel, we'll get rid of it later by setting
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// outsideXX to insideXX
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switch (whichSide) {
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case NS_SIDE_TOP:
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// the TL points are the left end; the BR points are the right end
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outsideEdge = outside.y;
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insideEdge = inside.y;
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outsideTL = outside.x;
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insideTL = inside.x;
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insideBR = inside.XMost();
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outsideBR = outside.XMost();
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break;
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case NS_SIDE_BOTTOM:
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// the TL points are the left end; the BR points are the right end
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outsideEdge = outside.YMost();
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insideEdge = inside.YMost();
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outsideTL = outside.x;
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insideTL = inside.x;
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insideBR = inside.XMost();
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outsideBR = outside.XMost();
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break;
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case NS_SIDE_LEFT:
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// the TL points are the top end; the BR points are the bottom end
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outsideEdge = outside.x;
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insideEdge = inside.x;
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outsideTL = outside.y;
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insideTL = inside.y;
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insideBR = inside.YMost();
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outsideBR = outside.YMost();
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break;
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case NS_SIDE_RIGHT:
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// the TL points are the top end; the BR points are the bottom end
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outsideEdge = outside.XMost();
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insideEdge = inside.XMost();
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outsideTL = outside.y;
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insideTL = inside.y;
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insideBR = inside.YMost();
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outsideBR = outside.YMost();
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break;
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}
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// Don't draw the bevels if an adjacent side is skipped
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if ( (whichSide == NS_SIDE_TOP) || (whichSide == NS_SIDE_BOTTOM) ) {
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// a top or bottom side
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if ((1<<NS_SIDE_LEFT) & aSkipSides) {
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insideTL = outsideTL;
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}
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if ((1<<NS_SIDE_RIGHT) & aSkipSides) {
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insideBR = outsideBR;
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}
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} else {
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// a right or left side
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if ((1<<NS_SIDE_TOP) & aSkipSides) {
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insideTL = outsideTL;
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}
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if ((1<<NS_SIDE_BOTTOM) & aSkipSides) {
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insideBR = outsideBR;
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}
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}
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// move things around when only drawing part of the border
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if (borderPart == BORDER_INSIDE) {
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outsideEdge = nscoord(outsideEdge * borderFrac + insideEdge * borderRest);
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outsideTL = nscoord(outsideTL * borderFrac + insideTL * borderRest);
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outsideBR = nscoord(outsideBR * borderFrac + insideBR * borderRest);
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} else if (borderPart == BORDER_OUTSIDE ) {
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insideEdge = nscoord(insideEdge * borderFrac + outsideEdge * borderRest);
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insideTL = nscoord(insideTL * borderFrac + outsideTL * borderRest);
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insideBR = nscoord(insideBR * borderFrac + outsideBR * borderRest);
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}
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// Base our thickness check on the segment being less than a pixel and 1/2
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twipsPerPixel += twipsPerPixel >> 2;
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// find the thickness of the piece being drawn
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if ((whichSide == NS_SIDE_TOP) || (whichSide == NS_SIDE_LEFT)) {
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thickness = insideEdge - outsideEdge;
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} else {
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thickness = outsideEdge - insideEdge;
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}
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// if returning a line, do it along inside edge for bottom or right borders
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// so that it's in the same place as it would be with polygons (why?)
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// XXX The previous version of the code shortened the right border too.
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if ( !((thickness >= twipsPerPixel) || (borderPart != BORDER_FULL)) &&
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((whichSide == NS_SIDE_BOTTOM) || (whichSide == NS_SIDE_RIGHT))) {
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outsideEdge = insideEdge;
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}
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// return the appropriate line or trapezoid
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if ((whichSide == NS_SIDE_TOP) || (whichSide == NS_SIDE_BOTTOM)) {
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// top and bottom borders
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aPoints[np++].MoveTo(outsideTL,outsideEdge);
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aPoints[np++].MoveTo(outsideBR,outsideEdge);
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// XXX Making this condition only (thickness >= twipsPerPixel) will
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// improve double borders and some cases of groove/ridge,
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// but will cause problems with table borders. See last and third
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// from last tests in test4.htm
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// Doing it this way emulates the old behavior. It might be worth
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// fixing.
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if ((thickness >= twipsPerPixel) || (borderPart != BORDER_FULL) ) {
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aPoints[np++].MoveTo(insideBR,insideEdge);
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aPoints[np++].MoveTo(insideTL,insideEdge);
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}
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} else {
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// right and left borders
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// XXX Ditto above
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if ((thickness >= twipsPerPixel) || (borderPart != BORDER_FULL) ) {
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aPoints[np++].MoveTo(insideEdge,insideBR);
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aPoints[np++].MoveTo(insideEdge,insideTL);
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}
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aPoints[np++].MoveTo(outsideEdge,outsideTL);
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aPoints[np++].MoveTo(outsideEdge,outsideBR);
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}
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return np;
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}
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void nsCSSRendering::DrawSide(nsIRenderingContext& aContext,
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PRIntn whichSide,
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const PRUint8 borderStyle,
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const nscolor borderColor,
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const nscolor aBackgroundColor,
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const nsRect& borderOutside,
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const nsRect& borderInside,
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PRIntn aSkipSides,
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nscoord twipsPerPixel,
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nsRect* aGap)
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{
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nsPoint theSide[MAX_POLY_POINTS];
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nscolor theColor = borderColor;
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PRUint8 theStyle = borderStyle;
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PRInt32 np;
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switch (theStyle) {
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case NS_STYLE_BORDER_STYLE_NONE:
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case NS_STYLE_BORDER_STYLE_HIDDEN:
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case NS_STYLE_BORDER_STYLE_BLANK:
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return;
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case NS_STYLE_BORDER_STYLE_DOTTED: //handled a special case elsewhere
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case NS_STYLE_BORDER_STYLE_DASHED: //handled a special case elsewhere
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break; // That was easy...
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case NS_STYLE_BORDER_STYLE_GROOVE:
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case NS_STYLE_BORDER_STYLE_RIDGE:
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np = MakeSide (theSide, aContext, whichSide, borderOutside, borderInside, aSkipSides,
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BORDER_INSIDE, 0.5f, twipsPerPixel);
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aContext.SetColor ( MakeBevelColor (whichSide,
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((theStyle == NS_STYLE_BORDER_STYLE_RIDGE) ?
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NS_STYLE_BORDER_STYLE_GROOVE :
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NS_STYLE_BORDER_STYLE_RIDGE),
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aBackgroundColor, theColor,
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PR_TRUE));
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if (2 == np) {
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//aContext.DrawLine (theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y);
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DrawLine (aContext, theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y, aGap);
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} else {
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//aContext.FillPolygon (theSide, np);
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FillPolygon (aContext, theSide, np, aGap);
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}
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np = MakeSide (theSide, aContext, whichSide, borderOutside, borderInside,aSkipSides,
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BORDER_OUTSIDE, 0.5f, twipsPerPixel);
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aContext.SetColor ( MakeBevelColor (whichSide, theStyle, aBackgroundColor,
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theColor, PR_TRUE));
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if (2 == np) {
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//aContext.DrawLine (theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y);
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DrawLine (aContext, theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y, aGap);
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} else {
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//aContext.FillPolygon (theSide, np);
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FillPolygon (aContext, theSide, np, aGap);
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}
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break;
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case NS_STYLE_BORDER_STYLE_SOLID:
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np = MakeSide (theSide, aContext, whichSide, borderOutside, borderInside,aSkipSides,
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BORDER_FULL, 1.0f, twipsPerPixel);
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aContext.SetColor (borderColor);
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if (2 == np) {
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//aContext.DrawLine (theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y);
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DrawLine (aContext, theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y, aGap);
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} else {
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//aContext.FillPolygon (theSide, np);
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FillPolygon (aContext, theSide, np, aGap);
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}
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break;
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case NS_STYLE_BORDER_STYLE_DOUBLE:
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np = MakeSide (theSide, aContext, whichSide, borderOutside, borderInside,aSkipSides,
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BORDER_INSIDE, 0.333333f, twipsPerPixel);
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aContext.SetColor (borderColor);
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if (2 == np) {
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//aContext.DrawLine (theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y);
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DrawLine (aContext, theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y, aGap);
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} else {
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//aContext.FillPolygon (theSide, np);
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FillPolygon (aContext, theSide, np, aGap);
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}
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np = MakeSide (theSide, aContext, whichSide, borderOutside, borderInside,aSkipSides,
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BORDER_OUTSIDE, 0.333333f, twipsPerPixel);
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if (2 == np) {
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//aContext.DrawLine (theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y);
|
|
DrawLine (aContext, theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y, aGap);
|
|
} else {
|
|
//aContext.FillPolygon (theSide, np);
|
|
FillPolygon (aContext, theSide, np, aGap);
|
|
}
|
|
break;
|
|
|
|
case NS_STYLE_BORDER_STYLE_BG_OUTSET:
|
|
case NS_STYLE_BORDER_STYLE_BG_INSET:
|
|
np = MakeSide (theSide, aContext, whichSide, borderOutside, borderInside,aSkipSides,
|
|
BORDER_FULL, 1.0f, twipsPerPixel);
|
|
aContext.SetColor ( MakeBevelColor (whichSide, theStyle, aBackgroundColor,
|
|
theColor, PR_FALSE));
|
|
if (2 == np) {
|
|
//aContext.DrawLine (theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y);
|
|
DrawLine (aContext, theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y, aGap);
|
|
} else {
|
|
//aContext.FillPolygon (theSide, np);
|
|
FillPolygon (aContext, theSide, np, aGap);
|
|
}
|
|
break;
|
|
case NS_STYLE_BORDER_STYLE_OUTSET:
|
|
case NS_STYLE_BORDER_STYLE_INSET:
|
|
np = MakeSide (theSide, aContext, whichSide, borderOutside, borderInside,aSkipSides,
|
|
BORDER_FULL, 1.0f, twipsPerPixel);
|
|
aContext.SetColor ( MakeBevelColor (whichSide, theStyle, aBackgroundColor,
|
|
theColor, PR_TRUE));
|
|
if (2 == np) {
|
|
//aContext.DrawLine (theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y);
|
|
DrawLine (aContext, theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y, aGap);
|
|
} else {
|
|
//aContext.FillPolygon (theSide, np);
|
|
FillPolygon (aContext, theSide, np, aGap);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Draw a dotted/dashed sides of a box
|
|
*/
|
|
//XXX dashes which span more than two edges are not handled properly MMP
|
|
void nsCSSRendering::DrawDashedSides(PRIntn startSide,
|
|
nsIRenderingContext& aContext,
|
|
const nsRect& aDirtyRect,
|
|
const PRUint8 borderStyles[],
|
|
const nscolor borderColors[],
|
|
const nsRect& borderOutside,
|
|
const nsRect& borderInside,
|
|
PRIntn aSkipSides,
|
|
nsRect* aGap)
|
|
{
|
|
PRIntn dashLength;
|
|
nsRect dashRect, firstRect, currRect;
|
|
PRBool bSolid = PR_TRUE;
|
|
float over = 0.0f;
|
|
PRUint8 style = borderStyles[startSide];
|
|
PRBool skippedSide = PR_FALSE;
|
|
nscoord xstart,xwidth,ystart,ywidth;
|
|
|
|
// find out were x and y start
|
|
if(aDirtyRect.x > borderInside.x) {
|
|
xstart = aDirtyRect.x;
|
|
} else {
|
|
xstart = borderInside.x;
|
|
}
|
|
|
|
if(aDirtyRect.y > borderInside.y) {
|
|
ystart = aDirtyRect.y;
|
|
} else {
|
|
ystart = aDirtyRect.y;
|
|
}
|
|
|
|
// find the x and y width
|
|
xwidth = aDirtyRect.XMost();
|
|
ywidth = aDirtyRect.YMost();
|
|
|
|
for (PRIntn whichSide = startSide; whichSide < 4; whichSide++) {
|
|
PRUint8 prevStyle = style;
|
|
style = borderStyles[whichSide];
|
|
if ((1<<whichSide) & aSkipSides) {
|
|
// Skipped side
|
|
skippedSide = PR_TRUE;
|
|
continue;
|
|
}
|
|
if ((style == NS_STYLE_BORDER_STYLE_DASHED) ||
|
|
(style == NS_STYLE_BORDER_STYLE_DOTTED))
|
|
{
|
|
if ((style != prevStyle) || skippedSide) {
|
|
//style discontinuity
|
|
over = 0.0f;
|
|
bSolid = PR_TRUE;
|
|
}
|
|
|
|
// XXX units for dash & dot?
|
|
if (style == NS_STYLE_BORDER_STYLE_DASHED) {
|
|
dashLength = DASH_LENGTH;
|
|
} else {
|
|
dashLength = DOT_LENGTH;
|
|
}
|
|
|
|
aContext.SetColor(borderColors[whichSide]);
|
|
switch (whichSide) {
|
|
case NS_SIDE_LEFT:
|
|
//XXX need to properly handle wrap around from last edge to first edge
|
|
//(this is the first edge) MMP
|
|
dashRect.width = borderInside.x - borderOutside.x;
|
|
dashRect.height = nscoord(dashRect.width * dashLength);
|
|
dashRect.x = borderOutside.x;
|
|
dashRect.y = borderInside.YMost() - dashRect.height;
|
|
|
|
if (over > 0.0f) {
|
|
firstRect.x = dashRect.x;
|
|
firstRect.width = dashRect.width;
|
|
firstRect.height = nscoord(dashRect.height * over);
|
|
firstRect.y = dashRect.y + (dashRect.height - firstRect.height);
|
|
over = 0.0f;
|
|
currRect = firstRect;
|
|
} else {
|
|
currRect = dashRect;
|
|
}
|
|
|
|
while (currRect.YMost() > borderInside.y) {
|
|
//clip if necessary
|
|
if (currRect.y < borderInside.y) {
|
|
over = float(borderInside.y - dashRect.y) /
|
|
float(dashRect.height);
|
|
currRect.height = currRect.height - (borderInside.y - currRect.y);
|
|
currRect.y = borderInside.y;
|
|
}
|
|
|
|
//draw if necessary
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
//setup for next iteration
|
|
if (over == 0.0f) {
|
|
bSolid = PRBool(!bSolid);
|
|
}
|
|
dashRect.y = dashRect.y - currRect.height;
|
|
currRect = dashRect;
|
|
}
|
|
break;
|
|
|
|
case NS_SIDE_TOP:
|
|
//if we are continuing a solid rect, fill in the corner first
|
|
if (bSolid) {
|
|
aContext.FillRect(borderOutside.x, borderOutside.y,
|
|
borderInside.x - borderOutside.x,
|
|
borderInside.y - borderOutside.y);
|
|
}
|
|
|
|
dashRect.height = borderInside.y - borderOutside.y;
|
|
dashRect.width = dashRect.height * dashLength;
|
|
dashRect.x = borderInside.x;
|
|
dashRect.y = borderOutside.y;
|
|
|
|
if (over > 0.0f) {
|
|
firstRect.x = dashRect.x;
|
|
firstRect.y = dashRect.y;
|
|
firstRect.width = nscoord(dashRect.width * over);
|
|
firstRect.height = dashRect.height;
|
|
over = 0.0f;
|
|
currRect = firstRect;
|
|
} else {
|
|
currRect = dashRect;
|
|
}
|
|
|
|
while (currRect.x < borderInside.XMost()) {
|
|
//clip if necessary
|
|
if (currRect.XMost() > borderInside.XMost()) {
|
|
over = float(dashRect.XMost() - borderInside.XMost()) /
|
|
float(dashRect.width);
|
|
currRect.width = currRect.width -
|
|
(currRect.XMost() - borderInside.XMost());
|
|
}
|
|
|
|
//draw if necessary
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
//setup for next iteration
|
|
if (over == 0.0f) {
|
|
bSolid = PRBool(!bSolid);
|
|
}
|
|
dashRect.x = dashRect.x + currRect.width;
|
|
currRect = dashRect;
|
|
}
|
|
break;
|
|
|
|
case NS_SIDE_RIGHT:
|
|
//if we are continuing a solid rect, fill in the corner first
|
|
if (bSolid) {
|
|
aContext.FillRect(borderInside.XMost(), borderOutside.y,
|
|
borderOutside.XMost() - borderInside.XMost(),
|
|
borderInside.y - borderOutside.y);
|
|
}
|
|
|
|
dashRect.width = borderOutside.XMost() - borderInside.XMost();
|
|
dashRect.height = nscoord(dashRect.width * dashLength);
|
|
dashRect.x = borderInside.XMost();
|
|
dashRect.y = borderInside.y;
|
|
|
|
if (over > 0.0f) {
|
|
firstRect.x = dashRect.x;
|
|
firstRect.y = dashRect.y;
|
|
firstRect.width = dashRect.width;
|
|
firstRect.height = nscoord(dashRect.height * over);
|
|
over = 0.0f;
|
|
currRect = firstRect;
|
|
} else {
|
|
currRect = dashRect;
|
|
}
|
|
|
|
while (currRect.y < borderInside.YMost()) {
|
|
//clip if necessary
|
|
if (currRect.YMost() > borderInside.YMost()) {
|
|
over = float(dashRect.YMost() - borderInside.YMost()) /
|
|
float(dashRect.height);
|
|
currRect.height = currRect.height -
|
|
(currRect.YMost() - borderInside.YMost());
|
|
}
|
|
|
|
//draw if necessary
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
//setup for next iteration
|
|
if (over == 0.0f) {
|
|
bSolid = PRBool(!bSolid);
|
|
}
|
|
dashRect.y = dashRect.y + currRect.height;
|
|
currRect = dashRect;
|
|
}
|
|
break;
|
|
|
|
case NS_SIDE_BOTTOM:
|
|
//if we are continuing a solid rect, fill in the corner first
|
|
if (bSolid) {
|
|
aContext.FillRect(borderInside.XMost(), borderInside.YMost(),
|
|
borderOutside.XMost() - borderInside.XMost(),
|
|
borderOutside.YMost() - borderInside.YMost());
|
|
}
|
|
|
|
dashRect.height = borderOutside.YMost() - borderInside.YMost();
|
|
dashRect.width = nscoord(dashRect.height * dashLength);
|
|
dashRect.x = borderInside.XMost() - dashRect.width;
|
|
dashRect.y = borderInside.YMost();
|
|
|
|
if (over > 0.0f) {
|
|
firstRect.y = dashRect.y;
|
|
firstRect.width = nscoord(dashRect.width * over);
|
|
firstRect.height = dashRect.height;
|
|
firstRect.x = dashRect.x + (dashRect.width - firstRect.width);
|
|
over = 0.0f;
|
|
currRect = firstRect;
|
|
} else {
|
|
currRect = dashRect;
|
|
}
|
|
|
|
while (currRect.XMost() > borderInside.x) {
|
|
//clip if necessary
|
|
if (currRect.x < borderInside.x) {
|
|
over = float(borderInside.x - dashRect.x) / float(dashRect.width);
|
|
currRect.width = currRect.width - (borderInside.x - currRect.x);
|
|
currRect.x = borderInside.x;
|
|
}
|
|
|
|
//draw if necessary
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
//setup for next iteration
|
|
if (over == 0.0f) {
|
|
bSolid = PRBool(!bSolid);
|
|
}
|
|
dashRect.x = dashRect.x - currRect.width;
|
|
currRect = dashRect;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
skippedSide = PR_FALSE;
|
|
}
|
|
}
|
|
|
|
/** ---------------------------------------------------
|
|
* See documentation in nsCSSRendering.h
|
|
* @update 10/22/99 dwc
|
|
*/
|
|
void nsCSSRendering::DrawDashedSides(PRIntn startSide,
|
|
nsIRenderingContext& aContext,
|
|
const nsRect& aDirtyRect,
|
|
const nsStyleSpacing& aSpacing,
|
|
PRBool aDoOutline,
|
|
const nsRect& borderOutside,
|
|
const nsRect& borderInside,
|
|
PRIntn aSkipSides,
|
|
nsRect* aGap)
|
|
{
|
|
PRIntn dashLength;
|
|
nsRect dashRect, currRect;
|
|
nscoord xstart,xwidth,ystart,ywidth,temp,temp1,adjust;
|
|
PRBool bSolid = PR_TRUE;
|
|
float over = 0.0f;
|
|
PRUint8 style = aDoOutline?aSpacing.GetOutlineStyle():aSpacing.GetBorderStyle(startSide);
|
|
PRBool skippedSide = PR_FALSE;
|
|
|
|
|
|
// find out were x and y start
|
|
if(aDirtyRect.x > borderInside.x) {
|
|
xstart = aDirtyRect.x;
|
|
} else {
|
|
xstart = borderInside.x;
|
|
}
|
|
|
|
if(aDirtyRect.y > borderInside.y) {
|
|
ystart = aDirtyRect.y;
|
|
} else {
|
|
ystart = borderInside.y;
|
|
}
|
|
|
|
|
|
// find the x and y width
|
|
xwidth = aDirtyRect.XMost();
|
|
ywidth = aDirtyRect.YMost();
|
|
|
|
|
|
for (PRIntn whichSide = startSide; whichSide < 4; whichSide++) {
|
|
PRUint8 prevStyle = style;
|
|
style = aDoOutline?aSpacing.GetOutlineStyle():aSpacing.GetBorderStyle(whichSide);
|
|
if ((1<<whichSide) & aSkipSides) {
|
|
// Skipped side
|
|
skippedSide = PR_TRUE;
|
|
continue;
|
|
}
|
|
if ((style == NS_STYLE_BORDER_STYLE_DASHED) ||
|
|
(style == NS_STYLE_BORDER_STYLE_DOTTED))
|
|
{
|
|
if ((style != prevStyle) || skippedSide) {
|
|
//style discontinuity
|
|
over = 0.0f;
|
|
bSolid = PR_TRUE;
|
|
}
|
|
|
|
if (style == NS_STYLE_BORDER_STYLE_DASHED) {
|
|
dashLength = DASH_LENGTH;
|
|
} else {
|
|
dashLength = DOT_LENGTH;
|
|
}
|
|
|
|
nscolor sideColor;
|
|
if (aDoOutline) {
|
|
aSpacing.GetOutlineColor(sideColor);
|
|
} else {
|
|
if (!aSpacing.GetBorderColor(whichSide, sideColor)) {
|
|
continue; // side is transparent
|
|
}
|
|
}
|
|
aContext.SetColor(sideColor);
|
|
switch (whichSide) {
|
|
case NS_SIDE_RIGHT:
|
|
case NS_SIDE_LEFT:
|
|
bSolid = PR_FALSE;
|
|
|
|
// This is our dot or dash..
|
|
if(whichSide==NS_SIDE_LEFT){
|
|
dashRect.width = borderInside.x - borderOutside.x;
|
|
} else {
|
|
dashRect.width = borderOutside.XMost() - borderInside.XMost();
|
|
}
|
|
if( dashRect.width >0 ) {
|
|
dashRect.height = dashRect.width * dashLength;
|
|
dashRect.y = borderOutside.y;
|
|
|
|
if(whichSide == NS_SIDE_RIGHT){
|
|
dashRect.x = borderInside.XMost();
|
|
} else {
|
|
dashRect.x = borderOutside.x;
|
|
}
|
|
|
|
temp = borderOutside.YMost();
|
|
temp1 = temp/dashRect.height;
|
|
|
|
currRect = dashRect;
|
|
|
|
if((temp1%2)==0){
|
|
adjust = (dashRect.height-(temp%dashRect.height))/2; // adjust back
|
|
// draw in the left and right
|
|
aContext.FillRect(dashRect.x, borderOutside.y,dashRect.width, dashRect.height-adjust);
|
|
aContext.FillRect(dashRect.x,(borderOutside.YMost()-(dashRect.height-adjust)),dashRect.width, dashRect.height-adjust);
|
|
currRect.y += (dashRect.height-adjust);
|
|
temp = temp-= (dashRect.height-adjust);
|
|
} else {
|
|
adjust = (temp%dashRect.width)/2; // adjust a tad longer
|
|
// draw in the left and right
|
|
aContext.FillRect(dashRect.x, borderOutside.y,dashRect.width, dashRect.height+adjust);
|
|
aContext.FillRect(dashRect.x,(borderOutside.YMost()-(dashRect.height+adjust)),dashRect.width, dashRect.height+adjust);
|
|
currRect.y += (dashRect.height+adjust);
|
|
temp = temp-= (dashRect.height+adjust);
|
|
}
|
|
|
|
if( temp > ywidth)
|
|
temp = ywidth;
|
|
|
|
// get the currRect's x into the view before we start
|
|
if( currRect.y < aDirtyRect.y){
|
|
temp1 = NSToCoordFloor((float)((aDirtyRect.y-currRect.y)/dashRect.height));
|
|
currRect.y += temp1*dashRect.height;
|
|
if((temp1%2)==1){
|
|
bSolid = PR_TRUE;
|
|
}
|
|
}
|
|
|
|
while(currRect.y<temp) {
|
|
//draw if necessary
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
bSolid = PRBool(!bSolid);
|
|
currRect.y += dashRect.height;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case NS_SIDE_BOTTOM:
|
|
case NS_SIDE_TOP:
|
|
bSolid = PR_FALSE;
|
|
|
|
// This is our dot or dash..
|
|
|
|
if(whichSide==NS_SIDE_TOP){
|
|
dashRect.height = borderInside.y - borderOutside.y;
|
|
} else {
|
|
dashRect.height = borderOutside.YMost() - borderInside.YMost();
|
|
}
|
|
if( dashRect.height >0 ) {
|
|
dashRect.width = dashRect.height * dashLength;
|
|
dashRect.x = borderOutside.x;
|
|
|
|
if(whichSide == NS_SIDE_BOTTOM){
|
|
dashRect.y = borderInside.YMost();
|
|
} else {
|
|
dashRect.y = borderOutside.y;
|
|
}
|
|
|
|
temp = borderOutside.XMost();
|
|
temp1 = temp/dashRect.width;
|
|
|
|
currRect = dashRect;
|
|
|
|
if((temp1%2)==0){
|
|
adjust = (dashRect.width-(temp%dashRect.width))/2; // even, adjust back
|
|
// draw in the left and right
|
|
aContext.FillRect(borderOutside.x,dashRect.y,dashRect.width-adjust,dashRect.height);
|
|
aContext.FillRect((borderOutside.XMost()-(dashRect.width-adjust)),dashRect.y,dashRect.width-adjust,dashRect.height);
|
|
currRect.x += (dashRect.width-adjust);
|
|
temp = temp-= (dashRect.width-adjust);
|
|
} else {
|
|
adjust = (temp%dashRect.width)/2;
|
|
// draw in the left and right
|
|
aContext.FillRect(borderOutside.x,dashRect.y,dashRect.width+adjust,dashRect.height);
|
|
aContext.FillRect((borderOutside.XMost()-(dashRect.width+adjust)),dashRect.y,dashRect.width+adjust,dashRect.height);
|
|
currRect.x += (dashRect.width+adjust);
|
|
temp = temp-= (dashRect.width+adjust);
|
|
}
|
|
|
|
|
|
if( temp > xwidth)
|
|
temp = xwidth;
|
|
|
|
// get the currRect's x into the view before we start
|
|
if( currRect.x < aDirtyRect.x){
|
|
temp1 = NSToCoordFloor((float)((aDirtyRect.x-currRect.x)/dashRect.width));
|
|
currRect.x += temp1*dashRect.width;
|
|
if((temp1%2)==1){
|
|
bSolid = PR_TRUE;
|
|
}
|
|
}
|
|
|
|
while(currRect.x<temp) {
|
|
//draw if necessary
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
bSolid = PRBool(!bSolid);
|
|
currRect.x += dashRect.width;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
skippedSide = PR_FALSE;
|
|
}
|
|
}
|
|
|
|
/* draw the portions of the border described in aBorderEdges that are dashed.
|
|
* a border has 4 edges. Each edge has 1 or more segments.
|
|
* "inside edges" are drawn differently than "outside edges" so the shared edges will match up.
|
|
* in the case of table collapsing borders, the table edge is the "outside" edge and
|
|
* cell edges are always "inside" edges (so adjacent cells have 2 shared "inside" edges.)
|
|
* There is a case for each of the four sides. Only the left side is well documented. The others
|
|
* are very similar.
|
|
*/
|
|
// XXX: doesn't do corners or junctions well at all. Just uses logic stolen
|
|
// from DrawDashedSides which is insufficient
|
|
void nsCSSRendering::DrawDashedSegments(nsIRenderingContext& aContext,
|
|
const nsRect& aBounds,
|
|
nsBorderEdges * aBorderEdges,
|
|
PRIntn aSkipSides,
|
|
nsRect* aGap)
|
|
{
|
|
PRIntn dashLength;
|
|
nsRect dashRect, currRect;
|
|
|
|
PRBool bSolid = PR_TRUE;
|
|
float over = 0.0f;
|
|
PRBool skippedSide = PR_FALSE;
|
|
PRIntn whichSide=0;
|
|
|
|
|
|
// do this just to set up initial condition for loop
|
|
// "segment" is the current portion of the edge we are computing
|
|
nsBorderEdge * segment = (nsBorderEdge *)(aBorderEdges->mEdges[whichSide].ElementAt(0));
|
|
PRUint8 style = segment->mStyle;
|
|
for ( ; whichSide < 4; whichSide++)
|
|
{
|
|
if ((1<<whichSide) & aSkipSides) {
|
|
// Skipped side
|
|
skippedSide = PR_TRUE;
|
|
continue;
|
|
}
|
|
nscoord x=0; nscoord y=0;
|
|
PRInt32 i;
|
|
PRInt32 segmentCount = aBorderEdges->mEdges[whichSide].Count();
|
|
nsBorderEdges * neighborBorderEdges=nsnull;
|
|
PRIntn neighborEdgeCount=0; // keeps track of which inside neighbor is shared with an outside segment
|
|
for (i=0; i<segmentCount; i++)
|
|
{
|
|
bSolid=PR_TRUE;
|
|
over = 0.0f;
|
|
segment = (nsBorderEdge *)(aBorderEdges->mEdges[whichSide].ElementAt(i));
|
|
style = segment->mStyle;
|
|
|
|
// XXX units for dash & dot?
|
|
if (style == NS_STYLE_BORDER_STYLE_DASHED) {
|
|
dashLength = DASH_LENGTH;
|
|
} else {
|
|
dashLength = DOT_LENGTH;
|
|
}
|
|
|
|
aContext.SetColor(segment->mColor);
|
|
switch (whichSide) {
|
|
case NS_SIDE_LEFT:
|
|
{ // draw left segment i
|
|
nsBorderEdge * topEdge = (nsBorderEdge *)(aBorderEdges->mEdges[NS_SIDE_TOP].ElementAt(0));
|
|
if (0==y)
|
|
{ // y is the offset to the top of this segment. 0 means its the topmost left segment
|
|
y = aBorderEdges->mMaxBorderWidth.top - topEdge->mWidth;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge)
|
|
y += topEdge->mWidth;
|
|
}
|
|
// the x offset is the x position offset by the max width of the left edge minus this segment's width
|
|
x = aBounds.x + (aBorderEdges->mMaxBorderWidth.left - segment->mWidth);
|
|
nscoord height = segment->mLength;
|
|
// the space between borderOutside and borderInside inclusive is the segment.
|
|
nsRect borderOutside(x, y, aBounds.width, height);
|
|
y += segment->mLength; // keep track of the y offset for the next segment
|
|
if ((style == NS_STYLE_BORDER_STYLE_DASHED) ||
|
|
(style == NS_STYLE_BORDER_STYLE_DOTTED))
|
|
{
|
|
nsRect borderInside(borderOutside);
|
|
nsMargin outsideMargin(segment->mWidth, 0, 0, 0);
|
|
borderInside.Deflate(outsideMargin);
|
|
nscoord totalLength = segment->mLength; // the computed length of this segment
|
|
// outside edges need info from their inside neighbor. The following code keeps track
|
|
// of which segment of the inside neighbor's shared edge we should use for this outside segment
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge)
|
|
{
|
|
if (segment->mInsideNeighbor == neighborBorderEdges)
|
|
{
|
|
neighborEdgeCount++;
|
|
}
|
|
else
|
|
{
|
|
neighborBorderEdges = segment->mInsideNeighbor;
|
|
neighborEdgeCount=0;
|
|
}
|
|
nsBorderEdge * neighborLeft = (nsBorderEdge *)(segment->mInsideNeighbor->mEdges[NS_SIDE_LEFT].ElementAt(neighborEdgeCount));
|
|
totalLength = neighborLeft->mLength;
|
|
}
|
|
dashRect.width = borderInside.x - borderOutside.x;
|
|
dashRect.height = nscoord(dashRect.width * dashLength);
|
|
dashRect.x = borderOutside.x;
|
|
dashRect.y = borderOutside.y + (totalLength/2) - dashRect.height;
|
|
if ((PR_TRUE==aBorderEdges->mOutsideEdge) && (0!=i))
|
|
dashRect.y -= topEdge->mWidth; // account for the topmost left edge corner with the leftmost top edge
|
|
if (0)
|
|
{
|
|
printf(" L: totalLength = %d, borderOutside.y = %d, midpoint %d, dashRect.y = %d\n",
|
|
totalLength, borderOutside.y, borderOutside.y +(totalLength/2), dashRect.y);
|
|
}
|
|
currRect = dashRect;
|
|
|
|
// we draw the segment in 2 halves to get the inside and outside edges to line up on the
|
|
// centerline of the shared edge.
|
|
|
|
// draw the top half
|
|
while (currRect.YMost() > borderInside.y) {
|
|
//clip if necessary
|
|
if (currRect.y < borderInside.y) {
|
|
over = float(borderInside.y - dashRect.y) /
|
|
float(dashRect.height);
|
|
currRect.height = currRect.height - (borderInside.y - currRect.y);
|
|
currRect.y = borderInside.y;
|
|
}
|
|
|
|
//draw if necessary
|
|
if (0)
|
|
{
|
|
printf("DASHED LEFT: xywh in loop currRect = %d %d %d %d %s\n",
|
|
currRect.x, currRect.y, currRect.width, currRect.height, bSolid?"TRUE":"FALSE");
|
|
}
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
//setup for next iteration
|
|
if (over == 0.0f) {
|
|
bSolid = PRBool(!bSolid);
|
|
}
|
|
dashRect.y = dashRect.y - currRect.height;
|
|
currRect = dashRect;
|
|
}
|
|
|
|
// draw the bottom half
|
|
dashRect.y = borderOutside.y + (totalLength/2) + dashRect.height;
|
|
if ((PR_TRUE==aBorderEdges->mOutsideEdge) && (0!=i))
|
|
dashRect.y -= topEdge->mWidth;
|
|
currRect = dashRect;
|
|
bSolid=PR_TRUE;
|
|
over = 0.0f;
|
|
while (currRect.YMost() < borderInside.YMost()) {
|
|
//clip if necessary
|
|
if (currRect.y < borderInside.y) {
|
|
over = float(borderInside.y - dashRect.y) /
|
|
float(dashRect.height);
|
|
currRect.height = currRect.height - (borderInside.y - currRect.y);
|
|
currRect.y = borderInside.y;
|
|
}
|
|
|
|
//draw if necessary
|
|
if (0)
|
|
{
|
|
printf("DASHED LEFT: xywh in loop currRect = %d %d %d %d %s\n",
|
|
currRect.x, currRect.y, currRect.width, currRect.height, bSolid?"TRUE":"FALSE");
|
|
}
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
//setup for next iteration
|
|
if (over == 0.0f) {
|
|
bSolid = PRBool(!bSolid);
|
|
}
|
|
dashRect.y = dashRect.y + currRect.height;
|
|
currRect = dashRect;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case NS_SIDE_TOP:
|
|
{ // draw top segment i
|
|
if (0==x)
|
|
{
|
|
nsBorderEdge * leftEdge = (nsBorderEdge *)(aBorderEdges->mEdges[NS_SIDE_LEFT].ElementAt(0));
|
|
x = aBorderEdges->mMaxBorderWidth.left - leftEdge->mWidth;
|
|
}
|
|
y = aBounds.y;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge) // segments of the outside edge are bottom-aligned
|
|
y += aBorderEdges->mMaxBorderWidth.top - segment->mWidth;
|
|
nsRect borderOutside(x, y, segment->mLength, aBounds.height);
|
|
x += segment->mLength;
|
|
if ((style == NS_STYLE_BORDER_STYLE_DASHED) ||
|
|
(style == NS_STYLE_BORDER_STYLE_DOTTED))
|
|
{
|
|
nsRect borderInside(borderOutside);
|
|
nsBorderEdge * neighbor;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge)
|
|
neighbor = (nsBorderEdge *)(segment->mInsideNeighbor->mEdges[NS_SIDE_LEFT].ElementAt(0));
|
|
else
|
|
neighbor = (nsBorderEdge *)(aBorderEdges->mEdges[NS_SIDE_LEFT].ElementAt(0));
|
|
nsMargin outsideMargin(neighbor->mWidth, segment->mWidth, 0, segment->mWidth);
|
|
borderInside.Deflate(outsideMargin);
|
|
nscoord firstRectWidth = 0;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge && 0==i)
|
|
{
|
|
firstRectWidth = borderInside.x - borderOutside.x;
|
|
aContext.FillRect(borderOutside.x, borderOutside.y,
|
|
firstRectWidth,
|
|
borderInside.y - borderOutside.y);
|
|
}
|
|
|
|
dashRect.height = borderInside.y - borderOutside.y;
|
|
dashRect.width = dashRect.height * dashLength;
|
|
dashRect.x = borderOutside.x + firstRectWidth;
|
|
dashRect.y = borderOutside.y;
|
|
currRect = dashRect;
|
|
|
|
while (currRect.x < borderInside.XMost()) {
|
|
//clip if necessary
|
|
if (currRect.XMost() > borderInside.XMost()) {
|
|
over = float(dashRect.XMost() - borderInside.XMost()) /
|
|
float(dashRect.width);
|
|
currRect.width = currRect.width -
|
|
(currRect.XMost() - borderInside.XMost());
|
|
}
|
|
|
|
//draw if necessary
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
//setup for next iteration
|
|
if (over == 0.0f) {
|
|
bSolid = PRBool(!bSolid);
|
|
}
|
|
dashRect.x = dashRect.x + currRect.width;
|
|
currRect = dashRect;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case NS_SIDE_RIGHT:
|
|
{ // draw right segment i
|
|
nsBorderEdge * topEdge = (nsBorderEdge *)
|
|
(aBorderEdges->mEdges[NS_SIDE_TOP].ElementAt(aBorderEdges->mEdges[NS_SIDE_TOP].Count()-1));
|
|
if (0==y)
|
|
{
|
|
y = aBorderEdges->mMaxBorderWidth.top - topEdge->mWidth;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge)
|
|
y += topEdge->mWidth;
|
|
}
|
|
nscoord width;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge)
|
|
{
|
|
width = aBounds.width - aBorderEdges->mMaxBorderWidth.right;
|
|
width += segment->mWidth;
|
|
}
|
|
else
|
|
{
|
|
width = aBounds.width;
|
|
}
|
|
nscoord height = segment->mLength;
|
|
nsRect borderOutside(aBounds.x, y, width, height);
|
|
y += segment->mLength;
|
|
if ((style == NS_STYLE_BORDER_STYLE_DASHED) ||
|
|
(style == NS_STYLE_BORDER_STYLE_DOTTED))
|
|
{
|
|
nsRect borderInside(borderOutside);
|
|
nsMargin outsideMargin(segment->mWidth, 0, (segment->mWidth), 0);
|
|
borderInside.Deflate(outsideMargin);
|
|
nscoord totalLength = segment->mLength;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge)
|
|
{
|
|
if (segment->mInsideNeighbor == neighborBorderEdges)
|
|
{
|
|
neighborEdgeCount++;
|
|
}
|
|
else
|
|
{
|
|
neighborBorderEdges = segment->mInsideNeighbor;
|
|
neighborEdgeCount=0;
|
|
}
|
|
nsBorderEdge * neighborRight = (nsBorderEdge *)(segment->mInsideNeighbor->mEdges[NS_SIDE_RIGHT].ElementAt(neighborEdgeCount));
|
|
totalLength = neighborRight->mLength;
|
|
}
|
|
dashRect.width = borderOutside.XMost() - borderInside.XMost();
|
|
dashRect.height = nscoord(dashRect.width * dashLength);
|
|
dashRect.x = borderInside.XMost();
|
|
dashRect.y = borderOutside.y + (totalLength/2) - dashRect.height;
|
|
if ((PR_TRUE==aBorderEdges->mOutsideEdge) && (0!=i))
|
|
dashRect.y -= topEdge->mWidth;
|
|
currRect = dashRect;
|
|
|
|
// draw the top half
|
|
while (currRect.YMost() > borderInside.y) {
|
|
//clip if necessary
|
|
if (currRect.y < borderInside.y) {
|
|
over = float(borderInside.y - dashRect.y) /
|
|
float(dashRect.height);
|
|
currRect.height = currRect.height - (borderInside.y - currRect.y);
|
|
currRect.y = borderInside.y;
|
|
}
|
|
|
|
//draw if necessary
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
//setup for next iteration
|
|
if (over == 0.0f) {
|
|
bSolid = PRBool(!bSolid);
|
|
}
|
|
dashRect.y = dashRect.y - currRect.height;
|
|
currRect = dashRect;
|
|
}
|
|
|
|
// draw the bottom half
|
|
dashRect.y = borderOutside.y + (totalLength/2) + dashRect.height;
|
|
if ((PR_TRUE==aBorderEdges->mOutsideEdge) && (0!=i))
|
|
dashRect.y -= topEdge->mWidth;
|
|
currRect = dashRect;
|
|
bSolid=PR_TRUE;
|
|
over = 0.0f;
|
|
while (currRect.YMost() < borderInside.YMost()) {
|
|
//clip if necessary
|
|
if (currRect.y < borderInside.y) {
|
|
over = float(borderInside.y - dashRect.y) /
|
|
float(dashRect.height);
|
|
currRect.height = currRect.height - (borderInside.y - currRect.y);
|
|
currRect.y = borderInside.y;
|
|
}
|
|
|
|
//draw if necessary
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
//setup for next iteration
|
|
if (over == 0.0f) {
|
|
bSolid = PRBool(!bSolid);
|
|
}
|
|
dashRect.y = dashRect.y + currRect.height;
|
|
currRect = dashRect;
|
|
}
|
|
|
|
}
|
|
}
|
|
break;
|
|
|
|
case NS_SIDE_BOTTOM:
|
|
{ // draw bottom segment i
|
|
if (0==x)
|
|
{
|
|
nsBorderEdge * leftEdge = (nsBorderEdge *)
|
|
(aBorderEdges->mEdges[NS_SIDE_LEFT].ElementAt(aBorderEdges->mEdges[NS_SIDE_LEFT].Count()-1));
|
|
x = aBorderEdges->mMaxBorderWidth.left - leftEdge->mWidth;
|
|
}
|
|
y = aBounds.y;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge) // segments of the outside edge are top-aligned
|
|
y -= aBorderEdges->mMaxBorderWidth.bottom - segment->mWidth;
|
|
nsRect borderOutside(x, y, segment->mLength, aBounds.height);
|
|
x += segment->mLength;
|
|
if ((style == NS_STYLE_BORDER_STYLE_DASHED) ||
|
|
(style == NS_STYLE_BORDER_STYLE_DOTTED))
|
|
{
|
|
nsRect borderInside(borderOutside);
|
|
nsBorderEdge * neighbor;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge)
|
|
neighbor = (nsBorderEdge *)(segment->mInsideNeighbor->mEdges[NS_SIDE_LEFT].ElementAt(0));
|
|
else
|
|
neighbor = (nsBorderEdge *)(aBorderEdges->mEdges[NS_SIDE_LEFT].ElementAt(0));
|
|
nsMargin outsideMargin(neighbor->mWidth, segment->mWidth, 0, segment->mWidth);
|
|
borderInside.Deflate(outsideMargin);
|
|
nscoord firstRectWidth = 0;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge && 0==i)
|
|
{
|
|
firstRectWidth = borderInside.x - borderOutside.x;
|
|
aContext.FillRect(borderOutside.x, borderInside.YMost(),
|
|
firstRectWidth,
|
|
borderOutside.YMost() - borderInside.YMost());
|
|
}
|
|
|
|
dashRect.height = borderOutside.YMost() - borderInside.YMost();
|
|
dashRect.width = nscoord(dashRect.height * dashLength);
|
|
dashRect.x = borderOutside.x + firstRectWidth;
|
|
dashRect.y = borderInside.YMost();
|
|
currRect = dashRect;
|
|
|
|
while (currRect.x < borderInside.XMost()) {
|
|
//clip if necessary
|
|
if (currRect.XMost() > borderInside.XMost()) {
|
|
over = float(dashRect.XMost() - borderInside.XMost()) /
|
|
float(dashRect.width);
|
|
currRect.width = currRect.width -
|
|
(currRect.XMost() - borderInside.XMost());
|
|
}
|
|
|
|
//draw if necessary
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
//setup for next iteration
|
|
if (over == 0.0f) {
|
|
bSolid = PRBool(!bSolid);
|
|
}
|
|
dashRect.x = dashRect.x + currRect.width;
|
|
currRect = dashRect;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
skippedSide = PR_FALSE;
|
|
}
|
|
}
|
|
|
|
// XXX improve this to constrain rendering to the damaged area
|
|
void nsCSSRendering::PaintBorder(nsIPresContext* aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
nsIFrame* aForFrame,
|
|
const nsRect& aDirtyRect,
|
|
const nsRect& aBorderArea,
|
|
const nsStyleSpacing& aBorderStyle,
|
|
nsIStyleContext* aStyleContext,
|
|
PRIntn aSkipSides,
|
|
nsRect* aGap,
|
|
nscoord aHardBorderSize,
|
|
PRBool aShouldIgnoreRounded)
|
|
{
|
|
PRIntn cnt;
|
|
nsMargin border;
|
|
const nsStyleColor* bgColor = nsStyleUtil::FindNonTransparentBackground(aStyleContext);
|
|
PRInt16 theRadius;
|
|
nsStyleCoord borderRadius;
|
|
float percent;
|
|
|
|
if (aHardBorderSize > 0) {
|
|
border.SizeTo(aHardBorderSize, aHardBorderSize, aHardBorderSize, aHardBorderSize);
|
|
} else {
|
|
aBorderStyle.CalcBorderFor(aForFrame, border);
|
|
}
|
|
if ((0 == border.left) && (0 == border.right) &&
|
|
(0 == border.top) && (0 == border.bottom)) {
|
|
// Empty border area
|
|
return;
|
|
}
|
|
|
|
// get the radius for our border
|
|
aBorderStyle.mBorderRadius.GetTop(borderRadius); // XXX-border-radius
|
|
theRadius = 0;
|
|
switch (borderRadius.GetUnit() ) {
|
|
case eStyleUnit_Inherit:
|
|
break;
|
|
case eStyleUnit_Percent:
|
|
percent = borderRadius.GetPercentValue();
|
|
theRadius = (nscoord)(percent * aBorderArea.width);
|
|
break;
|
|
case eStyleUnit_Coord:
|
|
theRadius = borderRadius.GetCoordValue();
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
// rounded version of the border
|
|
if (!aShouldIgnoreRounded) {
|
|
if (theRadius > 0){
|
|
PaintRoundedBorder(aPresContext,aRenderingContext,aForFrame,aDirtyRect,aBorderArea,aBorderStyle,aStyleContext,aSkipSides,theRadius,aGap);
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Turn off rendering for all of the zero sized sides
|
|
if (0 == border.top) aSkipSides |= (1 << NS_SIDE_TOP);
|
|
if (0 == border.right) aSkipSides |= (1 << NS_SIDE_RIGHT);
|
|
if (0 == border.bottom) aSkipSides |= (1 << NS_SIDE_BOTTOM);
|
|
if (0 == border.left) aSkipSides |= (1 << NS_SIDE_LEFT);
|
|
|
|
// XXX These are misnamed. Why is it that 'outside' is inside of
|
|
// 'inside' (it's produced by deflating)?
|
|
nsRect inside(aBorderArea);
|
|
nsRect outside(inside);
|
|
outside.Deflate(border);
|
|
|
|
// If the dirty rect is completely inside the border area (e.g., only the
|
|
// content is being painted), then we can skip out now
|
|
if (outside.Contains(aDirtyRect)) {
|
|
return;
|
|
}
|
|
|
|
//see if any sides are dotted or dashed
|
|
for (cnt = 0; cnt < 4; cnt++) {
|
|
if ((aBorderStyle.GetBorderStyle(cnt) == NS_STYLE_BORDER_STYLE_DOTTED) ||
|
|
(aBorderStyle.GetBorderStyle(cnt) == NS_STYLE_BORDER_STYLE_DASHED)) {
|
|
break;
|
|
}
|
|
}
|
|
if (cnt < 4) {
|
|
DrawDashedSides(cnt, aRenderingContext,aDirtyRect,aBorderStyle, PR_FALSE,
|
|
inside, outside, aSkipSides, aGap);
|
|
}
|
|
|
|
// Draw all the other sides
|
|
|
|
/* Get our conversion values */
|
|
nscoord twipsPerPixel;
|
|
float p2t;
|
|
aPresContext->GetScaledPixelsToTwips(&p2t);
|
|
twipsPerPixel = NSIntPixelsToTwips(1,p2t);
|
|
|
|
|
|
nscolor sideColor;
|
|
if (0 == (aSkipSides & (1<<NS_SIDE_BOTTOM))) {
|
|
if (aBorderStyle.GetBorderColor(NS_SIDE_BOTTOM, sideColor)) {
|
|
DrawSide(aRenderingContext, NS_SIDE_BOTTOM,
|
|
aBorderStyle.GetBorderStyle(NS_SIDE_BOTTOM),
|
|
sideColor,
|
|
bgColor->mBackgroundColor, inside,outside, aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
}
|
|
}
|
|
if (0 == (aSkipSides & (1<<NS_SIDE_LEFT))) {
|
|
if (aBorderStyle.GetBorderColor(NS_SIDE_LEFT, sideColor)) {
|
|
DrawSide(aRenderingContext, NS_SIDE_LEFT,
|
|
aBorderStyle.GetBorderStyle(NS_SIDE_LEFT),
|
|
sideColor,
|
|
bgColor->mBackgroundColor,inside, outside,aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
}
|
|
}
|
|
if (0 == (aSkipSides & (1<<NS_SIDE_TOP))) {
|
|
if (aBorderStyle.GetBorderColor(NS_SIDE_TOP, sideColor)) {
|
|
DrawSide(aRenderingContext, NS_SIDE_TOP,
|
|
aBorderStyle.GetBorderStyle(NS_SIDE_TOP),
|
|
sideColor,
|
|
bgColor->mBackgroundColor,inside, outside,aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
}
|
|
}
|
|
if (0 == (aSkipSides & (1<<NS_SIDE_RIGHT))) {
|
|
if (aBorderStyle.GetBorderColor(NS_SIDE_RIGHT, sideColor)) {
|
|
DrawSide(aRenderingContext, NS_SIDE_RIGHT,
|
|
aBorderStyle.GetBorderStyle(NS_SIDE_RIGHT),
|
|
sideColor,
|
|
bgColor->mBackgroundColor,inside, outside,aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
}
|
|
}
|
|
}
|
|
|
|
// XXX improve this to constrain rendering to the damaged area
|
|
void nsCSSRendering::PaintOutline(nsIPresContext* aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
nsIFrame* aForFrame,
|
|
const nsRect& aDirtyRect,
|
|
const nsRect& aBorderArea,
|
|
const nsStyleSpacing& aBorderStyle,
|
|
nsIStyleContext* aStyleContext,
|
|
PRIntn aSkipSides,
|
|
nsRect* aGap)
|
|
{
|
|
const nsStyleColor* bgColor = nsStyleUtil::FindNonTransparentBackground(aStyleContext);
|
|
|
|
nscoord width;
|
|
aBorderStyle.GetOutlineWidth(width);
|
|
|
|
if (0 == width) {
|
|
// Empty outline
|
|
return;
|
|
}
|
|
|
|
nsRect inside(aBorderArea);
|
|
nsRect outside(inside);
|
|
inside.Inflate(width, width);
|
|
|
|
nsRect clipRect(aBorderArea);
|
|
clipRect.Inflate(width, width); // make clip extra big for now
|
|
|
|
PRBool clipState = PR_FALSE;
|
|
aRenderingContext.PushState();
|
|
aRenderingContext.SetClipRect(clipRect, nsClipCombine_kReplace, clipState);
|
|
|
|
PRUint8 outlineStyle = aBorderStyle.GetOutlineStyle();
|
|
//see if any sides are dotted or dashed
|
|
if ((outlineStyle == NS_STYLE_BORDER_STYLE_DOTTED) ||
|
|
(outlineStyle == NS_STYLE_BORDER_STYLE_DASHED)) {
|
|
DrawDashedSides(0, aRenderingContext, aDirtyRect, aBorderStyle, PR_TRUE,
|
|
inside, outside, aSkipSides, aGap);
|
|
aRenderingContext.PopState(clipState);
|
|
return;
|
|
}
|
|
|
|
// Draw all the other sides
|
|
|
|
/* XXX something is misnamed here!!!! */
|
|
nscoord twipsPerPixel;/* XXX */
|
|
float p2t;/* XXX */
|
|
aPresContext->GetPixelsToTwips(&p2t);/* XXX */
|
|
twipsPerPixel = (nscoord) p2t;/* XXX */
|
|
|
|
nscolor outlineColor;
|
|
|
|
if (aBorderStyle.GetOutlineColor(outlineColor)) {
|
|
DrawSide(aRenderingContext, NS_SIDE_BOTTOM,
|
|
outlineStyle,
|
|
outlineColor,
|
|
bgColor->mBackgroundColor, inside,outside, aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
|
|
DrawSide(aRenderingContext, NS_SIDE_LEFT,
|
|
outlineStyle,
|
|
outlineColor,
|
|
bgColor->mBackgroundColor,inside, outside,aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
|
|
DrawSide(aRenderingContext, NS_SIDE_TOP,
|
|
outlineStyle,
|
|
outlineColor,
|
|
bgColor->mBackgroundColor,inside, outside,aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
|
|
DrawSide(aRenderingContext, NS_SIDE_RIGHT,
|
|
outlineStyle,
|
|
outlineColor,
|
|
bgColor->mBackgroundColor,inside, outside,aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
}
|
|
// Restore clipping
|
|
aRenderingContext.PopState(clipState);
|
|
}
|
|
|
|
/* draw the edges of the border described in aBorderEdges one segment at a time.
|
|
* a border has 4 edges. Each edge has 1 or more segments.
|
|
* "inside edges" are drawn differently than "outside edges" so the shared edges will match up.
|
|
* in the case of table collapsing borders, the table edge is the "outside" edge and
|
|
* cell edges are always "inside" edges (so adjacent cells have 2 shared "inside" edges.)
|
|
* dashed segments are drawn by DrawDashedSegments().
|
|
*/
|
|
// XXX: doesn't do corners or junctions well at all. Just uses logic stolen
|
|
// from PaintBorder which is insufficient
|
|
|
|
void nsCSSRendering::PaintBorderEdges(nsIPresContext* aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
nsIFrame* aForFrame,
|
|
const nsRect& aDirtyRect,
|
|
const nsRect& aBorderArea,
|
|
nsBorderEdges * aBorderEdges,
|
|
nsIStyleContext* aStyleContext,
|
|
PRIntn aSkipSides,
|
|
nsRect* aGap)
|
|
{
|
|
const nsStyleColor* bgColor = nsStyleUtil::FindNonTransparentBackground(aStyleContext);
|
|
|
|
if (nsnull==aBorderEdges) { // Empty border segments
|
|
return;
|
|
}
|
|
|
|
// Turn off rendering for all of the zero sized sides
|
|
if (0 == aBorderEdges->mMaxBorderWidth.top)
|
|
aSkipSides |= (1 << NS_SIDE_TOP);
|
|
if (0 == aBorderEdges->mMaxBorderWidth.right)
|
|
aSkipSides |= (1 << NS_SIDE_RIGHT);
|
|
if (0 == aBorderEdges->mMaxBorderWidth.bottom)
|
|
aSkipSides |= (1 << NS_SIDE_BOTTOM);
|
|
if (0 == aBorderEdges->mMaxBorderWidth.left)
|
|
aSkipSides |= (1 << NS_SIDE_LEFT);
|
|
|
|
// Draw any dashed or dotted segments separately
|
|
DrawDashedSegments(aRenderingContext, aBorderArea, aBorderEdges, aSkipSides, aGap);
|
|
|
|
// Draw all the other sides
|
|
nscoord twipsPerPixel;
|
|
float p2t;
|
|
aPresContext->GetPixelsToTwips(&p2t);
|
|
twipsPerPixel = (nscoord) p2t;/* XXX huh!*/
|
|
|
|
if (0 == (aSkipSides & (1<<NS_SIDE_TOP))) {
|
|
PRInt32 segmentCount = aBorderEdges->mEdges[NS_SIDE_TOP].Count();
|
|
PRInt32 i;
|
|
nsBorderEdge * leftEdge = (nsBorderEdge *)(aBorderEdges->mEdges[NS_SIDE_LEFT].ElementAt(0));
|
|
nscoord x = aBorderEdges->mMaxBorderWidth.left - leftEdge->mWidth;
|
|
for (i=0; i<segmentCount; i++)
|
|
{
|
|
nsBorderEdge * borderEdge = (nsBorderEdge *)(aBorderEdges->mEdges[NS_SIDE_TOP].ElementAt(i));
|
|
nscoord y = aBorderArea.y;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge) // segments of the outside edge are bottom-aligned
|
|
y += aBorderEdges->mMaxBorderWidth.top - borderEdge->mWidth;
|
|
nsRect inside(x, y, borderEdge->mLength, aBorderArea.height);
|
|
x += borderEdge->mLength;
|
|
nsRect outside(inside);
|
|
nsMargin outsideMargin(0, borderEdge->mWidth, 0, 0);
|
|
outside.Deflate(outsideMargin);
|
|
DrawSide(aRenderingContext, NS_SIDE_TOP,
|
|
borderEdge->mStyle,
|
|
borderEdge->mColor,
|
|
bgColor->mBackgroundColor,
|
|
inside, outside,aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
}
|
|
}
|
|
if (0 == (aSkipSides & (1<<NS_SIDE_LEFT))) {
|
|
PRInt32 segmentCount = aBorderEdges->mEdges[NS_SIDE_LEFT].Count();
|
|
PRInt32 i;
|
|
nsBorderEdge * topEdge = (nsBorderEdge *)(aBorderEdges->mEdges[NS_SIDE_TOP].ElementAt(0));
|
|
nscoord y = aBorderEdges->mMaxBorderWidth.top - topEdge->mWidth;
|
|
for (i=0; i<segmentCount; i++)
|
|
{
|
|
nsBorderEdge * borderEdge = (nsBorderEdge *)(aBorderEdges->mEdges[NS_SIDE_LEFT].ElementAt(i));
|
|
nscoord x = aBorderArea.x + (aBorderEdges->mMaxBorderWidth.left - borderEdge->mWidth);
|
|
nsRect inside(x, y, aBorderArea.width, borderEdge->mLength);
|
|
y += borderEdge->mLength;
|
|
nsRect outside(inside);
|
|
nsMargin outsideMargin(borderEdge->mWidth, 0, 0, 0);
|
|
outside.Deflate(outsideMargin);
|
|
DrawSide(aRenderingContext, NS_SIDE_LEFT,
|
|
borderEdge->mStyle,
|
|
borderEdge->mColor,
|
|
bgColor->mBackgroundColor,
|
|
inside, outside, aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
}
|
|
}
|
|
if (0 == (aSkipSides & (1<<NS_SIDE_BOTTOM))) {
|
|
PRInt32 segmentCount = aBorderEdges->mEdges[NS_SIDE_BOTTOM].Count();
|
|
PRInt32 i;
|
|
nsBorderEdge * leftEdge = (nsBorderEdge *)
|
|
(aBorderEdges->mEdges[NS_SIDE_LEFT].ElementAt(aBorderEdges->mEdges[NS_SIDE_LEFT].Count()-1));
|
|
nscoord x = aBorderEdges->mMaxBorderWidth.left - leftEdge->mWidth;
|
|
for (i=0; i<segmentCount; i++)
|
|
{
|
|
nsBorderEdge * borderEdge = (nsBorderEdge *)(aBorderEdges->mEdges[NS_SIDE_BOTTOM].ElementAt(i));
|
|
nscoord y = aBorderArea.y;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge) // segments of the outside edge are top-aligned
|
|
y -= (aBorderEdges->mMaxBorderWidth.bottom - borderEdge->mWidth);
|
|
nsRect inside(x, y, borderEdge->mLength, aBorderArea.height);
|
|
x += borderEdge->mLength;
|
|
nsRect outside(inside);
|
|
nsMargin outsideMargin(0, 0, 0, borderEdge->mWidth);
|
|
outside.Deflate(outsideMargin);
|
|
DrawSide(aRenderingContext, NS_SIDE_BOTTOM,
|
|
borderEdge->mStyle,
|
|
borderEdge->mColor,
|
|
bgColor->mBackgroundColor,
|
|
inside, outside,aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
}
|
|
}
|
|
if (0 == (aSkipSides & (1<<NS_SIDE_RIGHT))) {
|
|
PRInt32 segmentCount = aBorderEdges->mEdges[NS_SIDE_RIGHT].Count();
|
|
PRInt32 i;
|
|
nsBorderEdge * topEdge = (nsBorderEdge *)
|
|
(aBorderEdges->mEdges[NS_SIDE_TOP].ElementAt(aBorderEdges->mEdges[NS_SIDE_TOP].Count()-1));
|
|
nscoord y = aBorderEdges->mMaxBorderWidth.top - topEdge->mWidth;
|
|
for (i=0; i<segmentCount; i++)
|
|
{
|
|
nsBorderEdge * borderEdge = (nsBorderEdge *)(aBorderEdges->mEdges[NS_SIDE_RIGHT].ElementAt(i));
|
|
nscoord width;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge)
|
|
{
|
|
width = aBorderArea.width - aBorderEdges->mMaxBorderWidth.right;
|
|
width += borderEdge->mWidth;
|
|
}
|
|
else
|
|
{
|
|
width = aBorderArea.width;
|
|
}
|
|
nsRect inside(aBorderArea.x, y, width, borderEdge->mLength);
|
|
y += borderEdge->mLength;
|
|
nsRect outside(inside);
|
|
nsMargin outsideMargin(0, 0, (borderEdge->mWidth), 0);
|
|
outside.Deflate(outsideMargin);
|
|
DrawSide(aRenderingContext, NS_SIDE_RIGHT,
|
|
borderEdge->mStyle,
|
|
borderEdge->mColor,
|
|
bgColor->mBackgroundColor,
|
|
inside, outside,aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
// Returns the anchor point to use for the background image. The
|
|
// anchor point is the (x, y) location where the first tile should
|
|
// be placed
|
|
//
|
|
// For repeated tiling, the anchor values are normalized wrt to the upper-left
|
|
// edge of the bounds, and are always in the range:
|
|
// -(aTileWidth - 1) <= anchor.x <= 0
|
|
// -(aTileHeight - 1) <= anchor.y <= 0
|
|
//
|
|
// i.e., they are either 0 or a negative number whose absolute value is
|
|
// less than the tile size in that dimension
|
|
static void
|
|
ComputeBackgroundAnchorPoint(const nsStyleColor& aColor,
|
|
const nsRect& aBounds,
|
|
nscoord aTileWidth, nscoord aTileHeight,
|
|
nsPoint& aResult)
|
|
{
|
|
nscoord x;
|
|
if (NS_STYLE_BG_X_POSITION_LENGTH & aColor.mBackgroundFlags) {
|
|
x = aColor.mBackgroundXPosition;
|
|
}
|
|
else {
|
|
nscoord t = aColor.mBackgroundXPosition;
|
|
float pct = float(t) / 100.0f;
|
|
nscoord tilePos = nscoord(pct * aTileWidth);
|
|
nscoord boxPos = nscoord(pct * aBounds.width);
|
|
x = boxPos - tilePos;
|
|
}
|
|
if (NS_STYLE_BG_REPEAT_X & aColor.mBackgroundRepeat) {
|
|
// When we are tiling in the x direction the loop will run from
|
|
// the left edge of the box to the right edge of the box. We need
|
|
// to adjust the starting coordinate to lie within the band being
|
|
// rendered.
|
|
if (x < 0) {
|
|
x = -x;
|
|
if (x < 0) {
|
|
// Some joker gave us max-negative-integer.
|
|
x = 0;
|
|
}
|
|
x %= aTileWidth;
|
|
x = -x;
|
|
}
|
|
else if (x != 0) {
|
|
x %= aTileWidth;
|
|
if (x > 0) {
|
|
x = x - aTileWidth;
|
|
}
|
|
}
|
|
|
|
NS_POSTCONDITION((x >= -(aTileWidth - 1)) && (x <= 0), "bad computed anchor value");
|
|
}
|
|
aResult.x = x;
|
|
|
|
nscoord y;
|
|
if (NS_STYLE_BG_Y_POSITION_LENGTH & aColor.mBackgroundFlags) {
|
|
y = aColor.mBackgroundYPosition;
|
|
}
|
|
else {
|
|
nscoord t = aColor.mBackgroundYPosition;
|
|
float pct = float(t) / 100.0f;
|
|
nscoord tilePos = nscoord(pct * aTileHeight);
|
|
nscoord boxPos = nscoord(pct * aBounds.height);
|
|
y = boxPos - tilePos;
|
|
}
|
|
if (NS_STYLE_BG_REPEAT_Y & aColor.mBackgroundRepeat) {
|
|
// When we are tiling in the y direction the loop will run from
|
|
// the top edge of the box to the bottom edge of the box. We need
|
|
// to adjust the starting coordinate to lie within the band being
|
|
// rendered.
|
|
if (y < 0) {
|
|
y = -y;
|
|
if (y < 0) {
|
|
// Some joker gave us max-negative-integer.
|
|
y = 0;
|
|
}
|
|
y %= aTileHeight;
|
|
y = -y;
|
|
}
|
|
else if (y != 0) {
|
|
y %= aTileHeight;
|
|
if (y > 0) {
|
|
y = y - aTileHeight;
|
|
}
|
|
}
|
|
|
|
NS_POSTCONDITION((y >= -(aTileHeight - 1)) && (y <= 0), "bad computed anchor value");
|
|
}
|
|
aResult.y = y;
|
|
}
|
|
|
|
// Returns the clip view associated with the scroll frame's scrolling
|
|
// view
|
|
static const nsIView*
|
|
GetClipView(nsIPresContext* aPresContext, nsIFrame* aScrollFrame)
|
|
{
|
|
nsIView* view;
|
|
nsIScrollableView* scrollingView;
|
|
const nsIView* clipView;
|
|
|
|
// Get the scrolling view
|
|
aScrollFrame->GetView(aPresContext, &view);
|
|
view->QueryInterface(kScrollViewIID, (void**)&scrollingView);
|
|
|
|
// Get the clip view
|
|
scrollingView->GetClipView(&clipView);
|
|
return clipView;
|
|
}
|
|
|
|
// Returns the nearest scroll frame ancestor
|
|
static nsIFrame*
|
|
GetNearestScrollFrame(nsIFrame* aFrame)
|
|
{
|
|
for (nsIFrame* f = aFrame; f; f->GetParent(&f)) {
|
|
nsIAtom* frameType;
|
|
|
|
// Is it a scroll frame?
|
|
f->GetFrameType(&frameType);
|
|
if (nsLayoutAtoms::scrollFrame == frameType) {
|
|
NS_RELEASE(frameType);
|
|
return f;
|
|
}
|
|
|
|
NS_IF_RELEASE(frameType);
|
|
}
|
|
|
|
return nsnull;
|
|
}
|
|
|
|
void
|
|
nsCSSRendering::PaintBackground(nsIPresContext* aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
nsIFrame* aForFrame,
|
|
const nsRect& aDirtyRect,
|
|
const nsRect& aBorderArea,
|
|
const nsStyleColor& aColor,
|
|
const nsStyleSpacing& aSpacing,
|
|
nscoord aDX,
|
|
nscoord aDY)
|
|
{
|
|
PRInt16 theRadius;
|
|
nsStyleCoord borderRadius;
|
|
PRBool transparentBG = NS_STYLE_BG_COLOR_TRANSPARENT ==
|
|
(aColor.mBackgroundFlags & NS_STYLE_BG_COLOR_TRANSPARENT);
|
|
|
|
if (0 < aColor.mBackgroundImage.Length()) {
|
|
// Lookup the image
|
|
nsSize imageSize;
|
|
nsIImage* image = nsnull;
|
|
nsIFrameImageLoader* loader = nsnull;
|
|
nsresult rv = aPresContext->StartLoadImage(aColor.mBackgroundImage,
|
|
transparentBG
|
|
? nsnull
|
|
: &aColor.mBackgroundColor,
|
|
nsnull,
|
|
aForFrame, nsnull, nsnull,
|
|
&loader);
|
|
if ((NS_OK != rv) || (nsnull == loader) ||
|
|
(loader->GetImage(&image), (nsnull == image))) {
|
|
NS_IF_RELEASE(loader);
|
|
// Redraw will happen later
|
|
if (!transparentBG) {
|
|
// The background color is rendered over the 'border' 'padding' and
|
|
// 'content' areas
|
|
aRenderingContext.SetColor(aColor.mBackgroundColor);
|
|
aRenderingContext.FillRect(aBorderArea);
|
|
}
|
|
return;
|
|
}
|
|
loader->GetSize(imageSize);
|
|
NS_RELEASE(loader);
|
|
|
|
// Background images are tiled over the 'content' and 'padding' areas
|
|
// only (not the 'border' area)
|
|
nsRect paddingArea(aBorderArea);
|
|
nsMargin border;
|
|
|
|
if (!aSpacing.GetBorder(border)) {
|
|
NS_NOTYETIMPLEMENTED("percentage border");
|
|
}
|
|
paddingArea.Deflate(border);
|
|
|
|
// The actual dirty rect is the intersection of the padding area and the
|
|
// dirty rect we were given
|
|
nsRect dirtyRect;
|
|
|
|
if (!dirtyRect.IntersectRect(paddingArea, aDirtyRect)) {
|
|
// Nothing to paint
|
|
return;
|
|
}
|
|
|
|
// Based on the repeat setting, compute how many tiles we should
|
|
// lay down for each axis. The value computed is the maximum based
|
|
// on the dirty rect before accounting for the background-position.
|
|
nscoord tileWidth = imageSize.width;
|
|
nscoord tileHeight = imageSize.height;
|
|
PRBool needBackgroundColor = PR_TRUE;
|
|
PRIntn repeat = aColor.mBackgroundRepeat;
|
|
nscoord xDistance, yDistance;
|
|
|
|
switch (repeat) {
|
|
case NS_STYLE_BG_REPEAT_OFF:
|
|
default:
|
|
xDistance = tileWidth;
|
|
yDistance = tileHeight;
|
|
break;
|
|
case NS_STYLE_BG_REPEAT_X:
|
|
xDistance = dirtyRect.width;
|
|
yDistance = tileHeight;
|
|
break;
|
|
case NS_STYLE_BG_REPEAT_Y:
|
|
xDistance = tileWidth;
|
|
yDistance = dirtyRect.height;
|
|
break;
|
|
case NS_STYLE_BG_REPEAT_XY:
|
|
xDistance = dirtyRect.width;
|
|
yDistance = dirtyRect.height;
|
|
// We need to render the background color if the image is transparent
|
|
needBackgroundColor = image->GetHasAlphaMask();
|
|
break;
|
|
}
|
|
|
|
// The background color is rendered over the 'border' 'padding' and
|
|
// 'content' areas
|
|
if (!transparentBG && needBackgroundColor) {
|
|
aRenderingContext.SetColor(aColor.mBackgroundColor);
|
|
aRenderingContext.FillRect(aBorderArea);
|
|
}
|
|
|
|
// See if there's nothing left to do
|
|
if ((tileWidth == 0) || (tileHeight == 0) || dirtyRect.IsEmpty()) {
|
|
// Nothing to paint
|
|
return;
|
|
}
|
|
|
|
// If it's a fixed background attachment, then get the nearest scrolling
|
|
// ancestor
|
|
nsIFrame* scrollFrame = nsnull;
|
|
const nsIView* clipView = nsnull;
|
|
nsRect viewportArea(0, 0, 0, 0);
|
|
|
|
if (NS_STYLE_BG_ATTACHMENT_FIXED == aColor.mBackgroundAttachment) {
|
|
scrollFrame = GetNearestScrollFrame(aForFrame);
|
|
|
|
// Get the viewport size
|
|
clipView = GetClipView(aPresContext, scrollFrame);
|
|
clipView->GetDimensions(&viewportArea.width, &viewportArea.height);
|
|
}
|
|
|
|
// Compute the anchor point. If it's a fixed background attachment, then
|
|
// the image is placed relative to the viewport; otherwise, it's placed
|
|
// relative to the element's padding area.
|
|
//
|
|
// When tiling, the anchor coordinate values will be negative offsets
|
|
// from the padding area
|
|
nsPoint anchor;
|
|
ComputeBackgroundAnchorPoint(aColor, scrollFrame ? viewportArea : paddingArea,
|
|
tileWidth, tileHeight, anchor);
|
|
|
|
// If it's a fixed background attachment, then convert the anchor point
|
|
// to aForFrame's coordinate space
|
|
if (NS_STYLE_BG_ATTACHMENT_FIXED == aColor.mBackgroundAttachment) {
|
|
nsIView* view;
|
|
|
|
aForFrame->GetView(aPresContext, &view);
|
|
if (!view) {
|
|
nsPoint offset;
|
|
aForFrame->GetOffsetFromView(aPresContext, offset, &view);
|
|
anchor -= offset;
|
|
}
|
|
NS_ASSERTION(view, "expected a view");
|
|
while (view && (view != clipView)) {
|
|
nscoord x, y;
|
|
|
|
view->GetPosition(&x, &y);
|
|
anchor.x -= x;
|
|
anchor.y -= y;
|
|
|
|
// Get the parent view
|
|
view->GetParent(view);
|
|
}
|
|
}
|
|
|
|
// Setup clipping so that rendering doesn't leak out of the computed
|
|
// dirty rect
|
|
PRBool clipState;
|
|
aRenderingContext.PushState();
|
|
aRenderingContext.SetClipRect(dirtyRect, nsClipCombine_kIntersect,
|
|
clipState);
|
|
|
|
// Compute the x and y starting points and limits for tiling
|
|
nscoord x0, x1;
|
|
if (NS_STYLE_BG_ATTACHMENT_FIXED == aColor.mBackgroundAttachment) {
|
|
if (NS_STYLE_BG_REPEAT_X & repeat) {
|
|
x0 = ((dirtyRect.x - anchor.x) / tileWidth) * tileWidth + anchor.x;
|
|
x1 = x0 + xDistance + tileWidth;
|
|
if (0 != anchor.x) {
|
|
x1 += tileWidth;
|
|
}
|
|
}
|
|
else {
|
|
// For fixed attachment, the anchor is relative to the nearest scrolling
|
|
// ancestor (or the viewport)
|
|
x0 = anchor.x;
|
|
x1 = x0 + tileWidth;
|
|
}
|
|
}
|
|
else {
|
|
if (NS_STYLE_BG_REPEAT_X & repeat) {
|
|
// When tiling in the x direction, adjust the starting position of the
|
|
// tile to account for dirtyRect.x. When tiling in x, the anchor.x value
|
|
// will be a negative value used to adjust the starting coordinate.
|
|
x0 = (dirtyRect.x / tileWidth) * tileWidth + anchor.x;
|
|
if(x0+tileWidth<dirtyRect.x)
|
|
x0+=tileWidth;
|
|
x1 = x0 + xDistance + tileWidth;
|
|
if (0 != anchor.x) {
|
|
x1 += tileWidth;
|
|
}
|
|
}
|
|
else {
|
|
// For scrolling attachment, the anchor is relative to the padding area
|
|
x0 = paddingArea.x + anchor.x;
|
|
x1 = x0 + tileWidth;
|
|
}
|
|
}
|
|
|
|
nscoord y0, y1;
|
|
if (NS_STYLE_BG_ATTACHMENT_FIXED == aColor.mBackgroundAttachment) {
|
|
if (NS_STYLE_BG_REPEAT_Y & repeat) {
|
|
y0 = ((dirtyRect.y - anchor.y) / tileHeight) * tileHeight + anchor.y;
|
|
y1 = y0 + yDistance + tileHeight;
|
|
if (0 != anchor.y) {
|
|
y1 += tileHeight;
|
|
}
|
|
}
|
|
else {
|
|
// For fixed attachment, the anchor is relative to the nearest scrolling
|
|
// ancestor (or the viewport)
|
|
y0 = anchor.y;
|
|
y1 = y0 + tileHeight;
|
|
}
|
|
}
|
|
else {
|
|
if (NS_STYLE_BG_REPEAT_Y & repeat) {
|
|
// When tiling in the y direction, adjust the starting position of the
|
|
// tile to account for dirtyRect.y. When tiling in y, the anchor.y value
|
|
// will be a negative value used to adjust the starting coordinate.
|
|
y0 = (dirtyRect.y / tileHeight) * tileHeight + anchor.y;
|
|
if(y0+tileHeight<dirtyRect.y)
|
|
y0+=tileHeight;
|
|
y1 = y0 + yDistance + tileHeight;
|
|
if (0 != anchor.y) {
|
|
y1 += tileHeight;
|
|
}
|
|
}
|
|
else {
|
|
// For scrolling attachment, the anchor is relative to the padding area
|
|
y0 = paddingArea.y + anchor.y;
|
|
y1 = y0 + tileHeight;
|
|
}
|
|
}
|
|
|
|
#define DOTILE
|
|
#ifdef DOTILE
|
|
nsIDrawingSurface *theSurface,*ts=nsnull;
|
|
nsRect srcRect,destRect,vrect,tvrect;
|
|
nscoord x,y;
|
|
PRInt32 flag = NS_COPYBITS_TO_BACK_BUFFER | NS_COPYBITS_XFORM_DEST_VALUES;
|
|
PRUint32 dsFlag = 0;
|
|
float t2p,app2dev;
|
|
PRBool clip;
|
|
nsTransform2D *theTransform;
|
|
nsIDeviceContext *theDevContext;
|
|
|
|
|
|
aRenderingContext.GetDrawingSurface((void**)&theSurface);
|
|
aPresContext->GetVisibleArea(srcRect);
|
|
tvrect.SetRect(0,0,x1-x0,y1-y0);
|
|
aPresContext->GetTwipsToPixels(&t2p);
|
|
|
|
if ((tileWidth<(tvrect.width/16)) || (tileHeight<(tvrect.height/16))) {
|
|
//tvrect.width /=4;
|
|
//tvrect.height /=4;
|
|
|
|
tvrect.width = ((tvrect.width)/tileWidth); //total x number of tiles
|
|
tvrect.width *=tileWidth;
|
|
|
|
tvrect.height = ((tvrect.height)/tileHeight); //total y number of tiles
|
|
tvrect.height *=tileHeight;
|
|
|
|
// create a new drawing surface... using pixels as the size
|
|
vrect.height = (nscoord)(tvrect.height * t2p);
|
|
vrect.width = (nscoord)(tvrect.width * t2p);
|
|
aRenderingContext.CreateDrawingSurface(&vrect,dsFlag,(nsDrawingSurface&)ts);
|
|
}
|
|
|
|
// did we need to create an offscreen drawing surface because the image was so small
|
|
if( nsnull != ts) {
|
|
aRenderingContext.SelectOffScreenDrawingSurface(ts);
|
|
|
|
// create a bigger tile in our new drawingsurface
|
|
// XXX pushing state to fix clipping problem, need to look into why the clip is set here
|
|
aRenderingContext.PushState();
|
|
aRenderingContext.GetCurrentTransform(theTransform);
|
|
aRenderingContext.GetDeviceContext(theDevContext);
|
|
theDevContext->GetAppUnitsToDevUnits(app2dev);
|
|
theTransform->SetToIdentity();
|
|
theTransform->AddScale(app2dev, app2dev);
|
|
|
|
//aRenderingContext.SetClipRect(srcRect, nsClipCombine_kReplace, clip);
|
|
|
|
// copy the initial image to our buffer, this takes twips and converts to pixels..
|
|
// which is what the image is in
|
|
aRenderingContext.DrawImage(image,0,0,tileWidth,tileHeight);
|
|
|
|
// duplicate the image in the upperleft corner to fill up the nsDrawingSurface
|
|
srcRect.SetRect(0,0,tileWidth,tileHeight);
|
|
TileImage(aRenderingContext,ts,srcRect,tvrect.width,tvrect.height);
|
|
|
|
// setting back the clip from the background clip push
|
|
aRenderingContext.PopState(clip);
|
|
|
|
// set back to the old drawingsurface
|
|
aRenderingContext.SelectOffScreenDrawingSurface((void**)theSurface);
|
|
|
|
// now duplicate our tile into the background
|
|
destRect = srcRect;
|
|
for(y=y0;y<y1;y+=tvrect.height){
|
|
for(x=x0;x<x1;x+=tvrect.width){
|
|
destRect.x = x;
|
|
destRect.y = y;
|
|
aRenderingContext.CopyOffScreenBits(ts,0,0,destRect,flag);
|
|
}
|
|
}
|
|
|
|
aRenderingContext.DestroyDrawingSurface(ts);
|
|
} else {
|
|
// slow blitting, one tile at a time....
|
|
for(y=y0;y<y1;y+=tileHeight){
|
|
for(x=x0;x<x1;x+=tileWidth){
|
|
aRenderingContext.DrawImage(image,x,y,tileWidth,tileHeight);
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
//#define NOTNOW
|
|
#ifdef NOTNOW
|
|
nscoord x,y;
|
|
for(y=y0;y<y1;y+=tileHeight){
|
|
for(x=x0;x<x1;x+=tileWidth){
|
|
aRenderingContext.DrawImage(image,x,y,tileWidth,tileHeight);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// Restore clipping
|
|
aRenderingContext.PopState(clipState);
|
|
NS_IF_RELEASE(image);
|
|
} else {
|
|
// See if there's a background color specified. The background color
|
|
// is rendered over the 'border' 'padding' and 'content' areas
|
|
if (!transparentBG) {
|
|
// check to see if we have a radius
|
|
aSpacing.mBorderRadius.GetTop(borderRadius); // XXX-border-radius
|
|
theRadius = 0;
|
|
switch (borderRadius.GetUnit() ) {
|
|
case eStyleUnit_Inherit:
|
|
break;
|
|
case eStyleUnit_Percent:
|
|
break;
|
|
case eStyleUnit_Coord:
|
|
theRadius = borderRadius.GetCoordValue();
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
// rounded version of the border
|
|
if (theRadius > 0){
|
|
PaintRoundedBackground(aPresContext,aRenderingContext,aForFrame,aDirtyRect,aBorderArea,aColor,aSpacing,aDX,aDY,theRadius);
|
|
return;
|
|
}
|
|
|
|
aRenderingContext.SetColor(aColor.mBackgroundColor);
|
|
aRenderingContext.FillRect(aBorderArea);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
/** ---------------------------------------------------
|
|
* A bit blitter to tile images to the background recursively
|
|
* @update 4/13/99 dwc
|
|
* @param aRC -- Rendering Context to render to
|
|
* @param aDS -- Target drawing surface for the rendering context
|
|
* @param aSrcRect -- Rectangle we are build with the image
|
|
* @param aHeight -- height of the tile
|
|
* @param aWidth -- width of the tile
|
|
*/
|
|
static void
|
|
TileImage(nsIRenderingContext& aRC,nsDrawingSurface aDS,nsRect &aSrcRect,PRInt16 aWidth,PRInt16 aHeight)
|
|
{
|
|
nsRect destRect;
|
|
PRInt32 flag = NS_COPYBITS_TO_BACK_BUFFER | NS_COPYBITS_XFORM_DEST_VALUES;
|
|
|
|
if( aSrcRect.width < aWidth) {
|
|
// width is less than double so double our source bitmap width
|
|
destRect = aSrcRect;
|
|
destRect.x += aSrcRect.width;
|
|
aRC.CopyOffScreenBits(aDS,aSrcRect.x,aSrcRect.y,destRect,flag);
|
|
aSrcRect.width*=2;
|
|
TileImage(aRC,aDS,aSrcRect,aWidth,aHeight);
|
|
} else if (aSrcRect.height < aHeight) {
|
|
// height is less than double so double our source bitmap height
|
|
destRect = aSrcRect;
|
|
destRect.y += aSrcRect.height;
|
|
aRC.CopyOffScreenBits(aDS,aSrcRect.x,aSrcRect.y,destRect,flag);
|
|
aSrcRect.height*=2;
|
|
TileImage(aRC,aDS,aSrcRect,aWidth,aHeight);
|
|
}
|
|
}
|
|
|
|
#ifdef NOTNOW
|
|
static void AntiAliasPoly(nsIRenderingContext& aRenderingContext,nsPoint aPoints[],PRInt32 aStartIndex,PRInt32 curIndex,PRInt8 aSide,PRInt8 aCorner);
|
|
#endif
|
|
|
|
/** ---------------------------------------------------
|
|
* See documentation in nsCSSRendering.h
|
|
* @update 3/26/99 dwc
|
|
*/
|
|
void
|
|
nsCSSRendering::PaintRoundedBackground(nsIPresContext* aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
nsIFrame* aForFrame,
|
|
const nsRect& aDirtyRect,
|
|
const nsRect& aBorderArea,
|
|
const nsStyleColor& aColor,
|
|
const nsStyleSpacing& aSpacing,
|
|
nscoord aDX,
|
|
nscoord aDY,
|
|
PRInt16 aTheRadius)
|
|
{
|
|
RoundedRect outerPath;
|
|
QBCurve cr1,cr2,cr3,cr4;
|
|
QBCurve UL,UR,LL,LR;
|
|
PRInt32 curIndex,c1Index;
|
|
nsPoint thePath[MAXPATHSIZE];
|
|
nsPoint polyPath[MAXPOLYPATHSIZE];
|
|
PRInt16 np;
|
|
nscoord twipsPerPixel;
|
|
float p2t;
|
|
|
|
// needed for our border thickness
|
|
aPresContext->GetPixelsToTwips(&p2t);
|
|
twipsPerPixel = NSToCoordRound(p2t);
|
|
|
|
aRenderingContext.SetColor(aColor.mBackgroundColor);
|
|
|
|
// set the rounded rect up, and let'er rip
|
|
outerPath.Set(aBorderArea.x,aBorderArea.y,aBorderArea.width,aBorderArea.height,aTheRadius,twipsPerPixel);
|
|
outerPath.GetRoundedBorders(UL,UR,LL,LR);
|
|
|
|
// BUILD THE ENTIRE OUTSIDE PATH
|
|
// TOP LINE ----------------------------------------------------------------
|
|
UL.MidPointDivide(&cr1,&cr2);
|
|
UR.MidPointDivide(&cr3,&cr4);
|
|
np=0;
|
|
thePath[np++].MoveTo(cr2.mAnc1.x,cr2.mAnc1.y);
|
|
thePath[np++].MoveTo(cr2.mCon.x, cr2.mCon.y);
|
|
thePath[np++].MoveTo(cr2.mAnc2.x, cr2.mAnc2.y);
|
|
thePath[np++].MoveTo(cr3.mAnc1.x, cr3.mAnc1.y);
|
|
thePath[np++].MoveTo(cr3.mCon.x, cr3.mCon.y);
|
|
thePath[np++].MoveTo(cr3.mAnc2.x, cr3.mAnc2.y);
|
|
|
|
polyPath[0].x = thePath[0].x;
|
|
polyPath[0].y = thePath[0].y;
|
|
curIndex = 1;
|
|
GetPath(thePath,polyPath,&curIndex,eOutside,c1Index);
|
|
|
|
// RIGHT LINE ----------------------------------------------------------------
|
|
LR.MidPointDivide(&cr2,&cr3);
|
|
np=0;
|
|
thePath[np++].MoveTo(cr4.mAnc1.x,cr4.mAnc1.y);
|
|
thePath[np++].MoveTo(cr4.mCon.x, cr4.mCon.y);
|
|
thePath[np++].MoveTo(cr4.mAnc2.x, cr4.mAnc2.y);
|
|
thePath[np++].MoveTo(cr2.mAnc1.x, cr2.mAnc1.y);
|
|
thePath[np++].MoveTo(cr2.mCon.x, cr2.mCon.y);
|
|
thePath[np++].MoveTo(cr2.mAnc2.x, cr2.mAnc2.y);
|
|
GetPath(thePath,polyPath,&curIndex,eOutside,c1Index);
|
|
|
|
// BOTTOM LINE ----------------------------------------------------------------
|
|
LL.MidPointDivide(&cr2,&cr4);
|
|
np=0;
|
|
thePath[np++].MoveTo(cr3.mAnc1.x,cr3.mAnc1.y);
|
|
thePath[np++].MoveTo(cr3.mCon.x, cr3.mCon.y);
|
|
thePath[np++].MoveTo(cr3.mAnc2.x, cr3.mAnc2.y);
|
|
thePath[np++].MoveTo(cr2.mAnc1.x, cr2.mAnc1.y);
|
|
thePath[np++].MoveTo(cr2.mCon.x, cr2.mCon.y);
|
|
thePath[np++].MoveTo(cr2.mAnc2.x, cr2.mAnc2.y);
|
|
GetPath(thePath,polyPath,&curIndex,eOutside,c1Index);
|
|
|
|
// LEFT LINE ----------------------------------------------------------------
|
|
np=0;
|
|
thePath[np++].MoveTo(cr4.mAnc1.x,cr4.mAnc1.y);
|
|
thePath[np++].MoveTo(cr4.mCon.x, cr4.mCon.y);
|
|
thePath[np++].MoveTo(cr4.mAnc2.x, cr4.mAnc2.y);
|
|
thePath[np++].MoveTo(cr1.mAnc1.x, cr1.mAnc1.y);
|
|
thePath[np++].MoveTo(cr1.mCon.x, cr1.mCon.y);
|
|
thePath[np++].MoveTo(cr1.mAnc2.x, cr1.mAnc2.y);
|
|
GetPath(thePath,polyPath,&curIndex,eOutside,c1Index);
|
|
|
|
aRenderingContext.FillPolygon(polyPath,curIndex);
|
|
|
|
}
|
|
|
|
|
|
/** ---------------------------------------------------
|
|
* See documentation in nsCSSRendering.h
|
|
* @update 3/26/99 dwc
|
|
*/
|
|
void
|
|
nsCSSRendering::PaintRoundedBorder(nsIPresContext* aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
nsIFrame* aForFrame,
|
|
const nsRect& aDirtyRect,
|
|
const nsRect& aBorderArea,
|
|
const nsStyleSpacing& aBorderStyle,
|
|
nsIStyleContext* aStyleContext,
|
|
PRIntn aSkipSides,
|
|
PRInt16 aBorderRadius,
|
|
nsRect* aGap)
|
|
{
|
|
RoundedRect outerPath;
|
|
QBCurve UL,LL,UR,LR;
|
|
QBCurve IUL,ILL,IUR,ILR;
|
|
QBCurve cr1,cr2,cr3,cr4;
|
|
QBCurve Icr1,Icr2,Icr3,Icr4;
|
|
nsPoint thePath[MAXPATHSIZE];
|
|
PRInt16 np;
|
|
nsMargin border;
|
|
nscoord twipsPerPixel,qtwips;
|
|
float p2t;
|
|
|
|
|
|
aBorderStyle.CalcBorderFor(aForFrame, border);
|
|
if ((0 == border.left) && (0 == border.right) &&
|
|
(0 == border.top) && (0 == border.bottom)) {
|
|
return;
|
|
}
|
|
|
|
// needed for our border thickness
|
|
aPresContext->GetPixelsToTwips(&p2t);
|
|
twipsPerPixel = NSToCoordRound(p2t);
|
|
|
|
// Base our thickness check on the segment being less than a pixel and 1/2
|
|
qtwips = twipsPerPixel >> 2;
|
|
|
|
outerPath.Set(aBorderArea.x,aBorderArea.y,aBorderArea.width,aBorderArea.height,aBorderRadius,twipsPerPixel);
|
|
outerPath.GetRoundedBorders(UL,UR,LL,LR);
|
|
outerPath.CalcInsetCurves(IUL,IUR,ILL,ILR,border);
|
|
|
|
// TOP LINE -- construct and divide the curves first, then put together our top and bottom paths
|
|
UL.MidPointDivide(&cr1,&cr2);
|
|
UR.MidPointDivide(&cr3,&cr4);
|
|
IUL.MidPointDivide(&Icr1,&Icr2);
|
|
IUR.MidPointDivide(&Icr3,&Icr4);
|
|
if(0!=border.top){
|
|
np=0;
|
|
thePath[np++].MoveTo(cr2.mAnc1.x,cr2.mAnc1.y);
|
|
thePath[np++].MoveTo(cr2.mCon.x, cr2.mCon.y);
|
|
thePath[np++].MoveTo(cr2.mAnc2.x, cr2.mAnc2.y);
|
|
thePath[np++].MoveTo(cr3.mAnc1.x, cr3.mAnc1.y);
|
|
thePath[np++].MoveTo(cr3.mCon.x, cr3.mCon.y);
|
|
thePath[np++].MoveTo(cr3.mAnc2.x, cr3.mAnc2.y);
|
|
|
|
thePath[np++].MoveTo(Icr3.mAnc2.x,Icr3.mAnc2.y);
|
|
thePath[np++].MoveTo(Icr3.mCon.x, Icr3.mCon.y);
|
|
thePath[np++].MoveTo(Icr3.mAnc1.x, Icr3.mAnc1.y);
|
|
thePath[np++].MoveTo(Icr2.mAnc2.x, Icr2.mAnc2.y);
|
|
thePath[np++].MoveTo(Icr2.mCon.x, Icr2.mCon.y);
|
|
thePath[np++].MoveTo(Icr2.mAnc1.x, Icr2.mAnc1.y);
|
|
RenderSide(thePath,aRenderingContext,aBorderStyle,aStyleContext,NS_SIDE_TOP,border,qtwips);
|
|
}
|
|
// RIGHT LINE ----------------------------------------------------------------
|
|
LR.MidPointDivide(&cr2,&cr3);
|
|
ILR.MidPointDivide(&Icr2,&Icr3);
|
|
if(0!=border.right){
|
|
np=0;
|
|
thePath[np++].MoveTo(cr4.mAnc1.x,cr4.mAnc1.y);
|
|
thePath[np++].MoveTo(cr4.mCon.x, cr4.mCon.y);
|
|
thePath[np++].MoveTo(cr4.mAnc2.x,cr4.mAnc2.y);
|
|
thePath[np++].MoveTo(cr2.mAnc1.x,cr2.mAnc1.y);
|
|
thePath[np++].MoveTo(cr2.mCon.x, cr2.mCon.y);
|
|
thePath[np++].MoveTo(cr2.mAnc2.x,cr2.mAnc2.y);
|
|
|
|
thePath[np++].MoveTo(Icr2.mAnc2.x,Icr2.mAnc2.y);
|
|
thePath[np++].MoveTo(Icr2.mCon.x, Icr2.mCon.y);
|
|
thePath[np++].MoveTo(Icr2.mAnc1.x,Icr2.mAnc1.y);
|
|
thePath[np++].MoveTo(Icr4.mAnc2.x,Icr4.mAnc2.y);
|
|
thePath[np++].MoveTo(Icr4.mCon.x, Icr4.mCon.y);
|
|
thePath[np++].MoveTo(Icr4.mAnc1.x,Icr4.mAnc1.y);
|
|
RenderSide(thePath,aRenderingContext,aBorderStyle,aStyleContext,NS_SIDE_RIGHT,border,qtwips);
|
|
}
|
|
|
|
// bottom line ----------------------------------------------------------------
|
|
LL.MidPointDivide(&cr2,&cr4);
|
|
ILL.MidPointDivide(&Icr2,&Icr4);
|
|
if(0!=border.bottom){
|
|
np=0;
|
|
thePath[np++].MoveTo(cr3.mAnc1.x,cr3.mAnc1.y);
|
|
thePath[np++].MoveTo(cr3.mCon.x, cr3.mCon.y);
|
|
thePath[np++].MoveTo(cr3.mAnc2.x, cr3.mAnc2.y);
|
|
thePath[np++].MoveTo(cr2.mAnc1.x, cr2.mAnc1.y);
|
|
thePath[np++].MoveTo(cr2.mCon.x, cr2.mCon.y);
|
|
thePath[np++].MoveTo(cr2.mAnc2.x, cr2.mAnc2.y);
|
|
|
|
thePath[np++].MoveTo(Icr2.mAnc2.x,Icr2.mAnc2.y);
|
|
thePath[np++].MoveTo(Icr2.mCon.x, Icr2.mCon.y);
|
|
thePath[np++].MoveTo(Icr2.mAnc1.x, Icr2.mAnc1.y);
|
|
thePath[np++].MoveTo(Icr3.mAnc2.x, Icr3.mAnc2.y);
|
|
thePath[np++].MoveTo(Icr3.mCon.x, Icr3.mCon.y);
|
|
thePath[np++].MoveTo(Icr3.mAnc1.x, Icr3.mAnc1.y);
|
|
RenderSide(thePath,aRenderingContext,aBorderStyle,aStyleContext,NS_SIDE_BOTTOM,border,qtwips);
|
|
}
|
|
// left line ----------------------------------------------------------------
|
|
if(0==border.left)
|
|
return;
|
|
np=0;
|
|
thePath[np++].MoveTo(cr4.mAnc1.x,cr4.mAnc1.y);
|
|
thePath[np++].MoveTo(cr4.mCon.x, cr4.mCon.y);
|
|
thePath[np++].MoveTo(cr4.mAnc2.x, cr4.mAnc2.y);
|
|
thePath[np++].MoveTo(cr1.mAnc1.x, cr1.mAnc1.y);
|
|
thePath[np++].MoveTo(cr1.mCon.x, cr1.mCon.y);
|
|
thePath[np++].MoveTo(cr1.mAnc2.x, cr1.mAnc2.y);
|
|
|
|
|
|
thePath[np++].MoveTo(Icr1.mAnc2.x,Icr1.mAnc2.y);
|
|
thePath[np++].MoveTo(Icr1.mCon.x, Icr1.mCon.y);
|
|
thePath[np++].MoveTo(Icr1.mAnc1.x, Icr1.mAnc1.y);
|
|
thePath[np++].MoveTo(Icr4.mAnc2.x, Icr4.mAnc2.y);
|
|
thePath[np++].MoveTo(Icr4.mCon.x, Icr4.mCon.y);
|
|
thePath[np++].MoveTo(Icr4.mAnc1.x, Icr4.mAnc1.y);
|
|
|
|
RenderSide(thePath,aRenderingContext,aBorderStyle,aStyleContext,NS_SIDE_LEFT,border,qtwips);
|
|
}
|
|
|
|
|
|
/** ---------------------------------------------------
|
|
* See documentation in nsCSSRendering.h
|
|
* @update 3/26/99 dwc
|
|
*/
|
|
void
|
|
nsCSSRendering::RenderSide(nsPoint aPoints[],nsIRenderingContext& aRenderingContext,
|
|
const nsStyleSpacing& aBorderStyle,nsIStyleContext* aStyleContext,
|
|
PRUint8 aSide,nsMargin &aBorThick,nscoord aTwipsPerPixel)
|
|
{
|
|
QBCurve thecurve;
|
|
nscolor sideColor;
|
|
nsPoint polypath[MAXPOLYPATHSIZE];
|
|
PRInt32 curIndex,c1Index,c2Index,junk;
|
|
PRInt8 border_Style;
|
|
PRInt16 r,g,b,thickness;
|
|
|
|
// set the style information
|
|
aBorderStyle.GetBorderColor(aSide,sideColor);
|
|
aRenderingContext.SetColor ( sideColor );
|
|
|
|
thickness = 0;
|
|
switch(aSide){
|
|
case NS_SIDE_LEFT:
|
|
thickness = aBorThick.left;
|
|
break;
|
|
case NS_SIDE_TOP:
|
|
thickness = aBorThick.top;
|
|
break;
|
|
case NS_SIDE_RIGHT:
|
|
thickness = aBorThick.right;
|
|
break;
|
|
case NS_SIDE_BOTTOM:
|
|
thickness = aBorThick.bottom;
|
|
break;
|
|
}
|
|
|
|
// if the border is thin, just draw it
|
|
if (thickness<aTwipsPerPixel) {
|
|
// NOTHING FANCY JUST DRAW OUR OUTSIDE BORDER
|
|
thecurve.SetPoints(aPoints[0].x,aPoints[0].y,aPoints[1].x,aPoints[1].y,aPoints[2].x,aPoints[2].y);
|
|
thecurve.SubDivide((nsIRenderingContext*)&aRenderingContext,0,0);
|
|
aRenderingContext.DrawLine(aPoints[2].x,aPoints[2].y,aPoints[3].x,aPoints[3].y);
|
|
thecurve.SetPoints(aPoints[3].x,aPoints[3].y,aPoints[4].x,aPoints[4].y,aPoints[5].x,aPoints[5].y);
|
|
thecurve.SubDivide((nsIRenderingContext*)&aRenderingContext,0,0);
|
|
} else {
|
|
|
|
border_Style = aBorderStyle.GetBorderStyle(aSide);
|
|
switch (border_Style){
|
|
case NS_STYLE_BORDER_STYLE_OUTSET:
|
|
case NS_STYLE_BORDER_STYLE_INSET:
|
|
{
|
|
const nsStyleColor* bgColor = nsStyleUtil::FindNonTransparentBackground(aStyleContext);
|
|
aBorderStyle.GetBorderColor(aSide,sideColor);
|
|
aRenderingContext.SetColor ( MakeBevelColor (aSide, border_Style, bgColor->mBackgroundColor,sideColor, PR_TRUE));
|
|
}
|
|
case NS_STYLE_BORDER_STYLE_DOTTED:
|
|
case NS_STYLE_BORDER_STYLE_DASHED:
|
|
// break; This is here until dotted and dashed are supported. It is ok to have
|
|
// dotted and dashed render in solid until this style is supported. This code should
|
|
// be moved when it is supported so that the above outset and inset will fall into the
|
|
// solid code below....
|
|
case NS_STYLE_BORDER_STYLE_SOLID:
|
|
polypath[0].x = aPoints[0].x;
|
|
polypath[0].y = aPoints[0].y;
|
|
curIndex = 1;
|
|
GetPath(aPoints,polypath,&curIndex,eOutside,c1Index);
|
|
c2Index = curIndex;
|
|
polypath[curIndex].x = aPoints[6].x;
|
|
polypath[curIndex].y = aPoints[6].y;
|
|
curIndex++;
|
|
GetPath(aPoints,polypath,&curIndex,eInside,junk);
|
|
polypath[curIndex].x = aPoints[0].x;
|
|
polypath[curIndex].y = aPoints[0].y;
|
|
curIndex++;
|
|
aRenderingContext.FillPolygon(polypath,curIndex);
|
|
|
|
// anti-alias this
|
|
r = NS_GET_R(sideColor);
|
|
g = NS_GET_G(sideColor);
|
|
b = NS_GET_B(sideColor);
|
|
|
|
r += (255-r)>>1;
|
|
g += (255-g)>>1;
|
|
b += (255-b)>>1;
|
|
|
|
sideColor = NS_RGB(r,g,b);
|
|
|
|
aRenderingContext.SetColor(sideColor);
|
|
//AntiAliasPoly(aRenderingContext,polypath,0,c1Index,aSide,1);
|
|
//AntiAliasPoly(aRenderingContext,polypath,c1Index+1,c2Index,aSide,2);
|
|
|
|
break;
|
|
case NS_STYLE_BORDER_STYLE_DOUBLE:
|
|
polypath[0].x = aPoints[0].x;
|
|
polypath[0].y = aPoints[0].y;
|
|
curIndex = 1;
|
|
GetPath(aPoints,polypath,&curIndex,eOutside,c1Index);
|
|
aRenderingContext.DrawPolyline(polypath,curIndex);
|
|
polypath[0].x = aPoints[6].x;
|
|
polypath[0].y = aPoints[6].y;
|
|
curIndex = 1;
|
|
GetPath(aPoints,polypath,&curIndex,eInside,c1Index);
|
|
aRenderingContext.DrawPolyline(polypath,curIndex);
|
|
break;
|
|
case NS_STYLE_BORDER_STYLE_NONE:
|
|
case NS_STYLE_BORDER_STYLE_HIDDEN:
|
|
case NS_STYLE_BORDER_STYLE_BLANK:
|
|
break;
|
|
case NS_STYLE_BORDER_STYLE_RIDGE:
|
|
case NS_STYLE_BORDER_STYLE_GROOVE:
|
|
{
|
|
const nsStyleColor* bgColor = nsStyleUtil::FindNonTransparentBackground(aStyleContext);
|
|
aBorderStyle.GetBorderColor(aSide,sideColor);
|
|
aRenderingContext.SetColor ( MakeBevelColor (aSide, border_Style, bgColor->mBackgroundColor,sideColor, PR_TRUE));
|
|
|
|
polypath[0].x = aPoints[0].x;
|
|
polypath[0].y = aPoints[0].y;
|
|
curIndex = 1;
|
|
GetPath(aPoints,polypath,&curIndex,eOutside,c1Index);
|
|
polypath[curIndex].x = (aPoints[5].x + aPoints[6].x)>>1;
|
|
polypath[curIndex].y = (aPoints[5].y + aPoints[6].y)>>1;
|
|
curIndex++;
|
|
GetPath(aPoints,polypath,&curIndex,eCalcRev,c1Index,.5);
|
|
polypath[curIndex].x = aPoints[0].x;
|
|
polypath[curIndex].y = aPoints[0].y;
|
|
curIndex++;
|
|
aRenderingContext.FillPolygon(polypath,curIndex);
|
|
|
|
aRenderingContext.SetColor ( MakeBevelColor (aSide,
|
|
((border_Style == NS_STYLE_BORDER_STYLE_RIDGE) ?
|
|
NS_STYLE_BORDER_STYLE_GROOVE :
|
|
NS_STYLE_BORDER_STYLE_RIDGE),
|
|
bgColor->mBackgroundColor,sideColor, PR_TRUE));
|
|
|
|
polypath[0].x = (aPoints[0].x + aPoints[11].x)>>1;
|
|
polypath[0].y = (aPoints[0].y + aPoints[11].y)>>1;
|
|
curIndex = 1;
|
|
GetPath(aPoints,polypath,&curIndex,eCalc,c1Index,.5);
|
|
polypath[curIndex].x = aPoints[6].x ;
|
|
polypath[curIndex].y = aPoints[6].y;
|
|
curIndex++;
|
|
GetPath(aPoints,polypath,&curIndex,eInside,c1Index);
|
|
polypath[curIndex].x = aPoints[0].x;
|
|
polypath[curIndex].y = aPoints[0].y;
|
|
curIndex++;
|
|
aRenderingContext.FillPolygon(polypath,curIndex);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef NOTNOW
|
|
/** ---------------------------------------------------
|
|
* AntiAlias the polygon
|
|
* @update 4/13/99 dwc
|
|
*/
|
|
static void
|
|
AntiAliasPoly(nsIRenderingContext& aRenderingContext,nsPoint aPoints[],PRInt32 aStartIndex,PRInt32 aCurIndex,PRInt8 aSide,PRInt8 aCorner)
|
|
{
|
|
PRInt32 i;
|
|
PRInt32 x0,y0,x1,y1,offsetx,offsety;
|
|
|
|
offsetx = offsety = 0;
|
|
switch (aSide) {
|
|
case NS_SIDE_TOP:
|
|
if( aCorner == 1) {
|
|
offsetx = 0;
|
|
}else{
|
|
offsetx = -10;
|
|
}
|
|
break;
|
|
case NS_SIDE_LEFT:
|
|
if( aCorner == 1) {
|
|
offsetx = 0;
|
|
}else{
|
|
offsetx = 0;
|
|
}
|
|
break;
|
|
case NS_SIDE_RIGHT:
|
|
if( aCorner == 1) {
|
|
offsetx = -10;
|
|
}else{
|
|
offsetx = -10;
|
|
}
|
|
break;
|
|
case NS_SIDE_BOTTOM:
|
|
if( aCorner == 1) {
|
|
offsety = -10;
|
|
}else{
|
|
offsety = -10;
|
|
}
|
|
break;
|
|
}
|
|
|
|
for(i=aStartIndex+1;i<aCurIndex;i++) {
|
|
x0 = aPoints[i-1].x+offsetx;
|
|
y0 = aPoints[i-1].y+offsety;
|
|
x1 = aPoints[i].x+offsetx;
|
|
y1 = aPoints[i].y+offsety;
|
|
aRenderingContext.DrawLine(x0,y0,x1,y1);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/** ---------------------------------------------------
|
|
* See documentation in nsCSSRendering.h
|
|
* @update 3/26/99 dwc
|
|
*/
|
|
void
|
|
RoundedRect::CalcInsetCurves(QBCurve &aULCurve,QBCurve &aURCurve,QBCurve &aLLCurve,QBCurve &aLRCurve,nsMargin &aBorder)
|
|
{
|
|
PRInt32 nLeft,nTop,nRight,nBottom;
|
|
PRInt16 adjust=0;
|
|
|
|
if(mDoRound)
|
|
adjust = mRoundness>>3;
|
|
|
|
nLeft = mOuterLeft+aBorder.left;
|
|
nTop = mOuterTop+aBorder.top;
|
|
nRight = mOuterRight-aBorder.right;
|
|
nBottom = mOuterBottom-aBorder.bottom;
|
|
|
|
if(nLeft > nRight){
|
|
nLeft = nRight;
|
|
}
|
|
|
|
if(nTop > nBottom){
|
|
nTop = nBottom;
|
|
}
|
|
|
|
// set the passed in curves to the rounded borders of the rectangle
|
|
aULCurve.SetPoints(nLeft,mInnerTop,nLeft+adjust,nTop+adjust,mInnerLeft,nTop);
|
|
aURCurve.SetPoints(mInnerRight,nTop,nRight-adjust,nTop+adjust,nRight,mInnerTop);
|
|
aLRCurve.SetPoints(nRight,mInnerBottom,nRight-adjust,nBottom-adjust,mInnerRight,nBottom);
|
|
aLLCurve.SetPoints(mInnerLeft,nBottom,nLeft+adjust,nBottom-adjust,nLeft,mInnerBottom);
|
|
|
|
}
|
|
|
|
/** ---------------------------------------------------
|
|
* See documentation in nsCSSRendering.h
|
|
* @update 4/13/99 dwc
|
|
*/
|
|
void
|
|
RoundedRect::Set(nscoord aLeft,nscoord aTop,PRInt32 aWidth,PRInt32 aHeight,PRInt16 aRadius,PRInt16 aNumTwipPerPix)
|
|
{
|
|
nscoord x,y,width,height,br;
|
|
|
|
|
|
// convert this rect to pixel boundaries
|
|
x = (aLeft/aNumTwipPerPix)*aNumTwipPerPix;
|
|
y = (aTop/aNumTwipPerPix)*aNumTwipPerPix;
|
|
width = (aWidth/aNumTwipPerPix)*aNumTwipPerPix;
|
|
height = (aHeight/aNumTwipPerPix)*aNumTwipPerPix;
|
|
br = (aRadius/aNumTwipPerPix)*aNumTwipPerPix;
|
|
|
|
if( (aRadius) > (aWidth>>1) ){
|
|
mRoundness = (aWidth>>1);
|
|
} else {
|
|
mRoundness = aRadius;
|
|
}
|
|
|
|
if( mRoundness > (aHeight>>1) )
|
|
mRoundness = aHeight>>1;
|
|
|
|
|
|
// are we drawing a circle
|
|
if( (aHeight==aWidth) && (mRoundness>=(aWidth>>1)) ) {
|
|
mDoRound = PR_TRUE;
|
|
mRoundness = aWidth>>1;
|
|
} else {
|
|
mDoRound = PR_FALSE;
|
|
}
|
|
|
|
// important coordinates that the path hits
|
|
mOuterLeft = x;
|
|
mOuterRight = x + width;
|
|
mOuterTop = y;
|
|
mOuterBottom = y+height;
|
|
mInnerLeft = mOuterLeft + mRoundness;
|
|
mInnerRight = mOuterRight - mRoundness;
|
|
mInnerTop = mOuterTop + mRoundness;
|
|
mInnerBottom = mOuterBottom - mRoundness;
|
|
|
|
}
|
|
|
|
/** ---------------------------------------------------
|
|
* See documentation in nsCSSRendering.h
|
|
* @update 4/13/99 dwc
|
|
*/
|
|
void
|
|
RoundedRect::GetRoundedBorders(QBCurve &aULCurve,QBCurve &aURCurve,QBCurve &aLLCurve,QBCurve &aLRCurve)
|
|
{
|
|
|
|
PRInt16 adjust=0;
|
|
|
|
if(mDoRound)
|
|
adjust = mRoundness>>3;
|
|
|
|
// set the passed in curves to the rounded borders of the rectangle
|
|
aULCurve.SetPoints(mOuterLeft,mInnerTop,mOuterLeft+adjust,mOuterTop+adjust,mInnerLeft,mOuterTop);
|
|
aURCurve.SetPoints(mInnerRight,mOuterTop,mOuterRight-adjust,mOuterTop+adjust,mOuterRight,mInnerTop);
|
|
aLRCurve.SetPoints(mOuterRight,mInnerBottom,mOuterRight-adjust,mOuterBottom-adjust,mInnerRight,mOuterBottom);
|
|
aLLCurve.SetPoints(mInnerLeft,mOuterBottom,mOuterLeft+adjust,mOuterBottom-adjust,mOuterLeft,mInnerBottom);
|
|
}
|
|
|
|
/** ---------------------------------------------------
|
|
* Given a qbezier path, convert it into a polygon path
|
|
* @update 3/26/99 dwc
|
|
* @param aPoints -- an array of points to use for the path
|
|
* @param aPolyPath -- an array of points containing the flattened polygon to use
|
|
* @param aCurIndex -- the index that points to the last element of the array
|
|
* @param aPathType -- what kind of path that should be returned
|
|
* @param aFrac -- the inset amount for a eCalc type path
|
|
*/
|
|
static void
|
|
GetPath(nsPoint aPoints[],nsPoint aPolyPath[],PRInt32 *aCurIndex,ePathTypes aPathType,PRInt32 &aC1Index,float aFrac)
|
|
{
|
|
QBCurve thecurve;
|
|
|
|
switch (aPathType) {
|
|
case eOutside:
|
|
thecurve.SetPoints(aPoints[0].x,aPoints[0].y,aPoints[1].x,aPoints[1].y,aPoints[2].x,aPoints[2].y);
|
|
thecurve.SubDivide(nsnull,aPolyPath,aCurIndex);
|
|
aC1Index = *aCurIndex;
|
|
aPolyPath[*aCurIndex].x = aPoints[3].x;
|
|
aPolyPath[*aCurIndex].y = aPoints[3].y;
|
|
(*aCurIndex)++;
|
|
thecurve.SetPoints(aPoints[3].x,aPoints[3].y,aPoints[4].x,aPoints[4].y,aPoints[5].x,aPoints[5].y);
|
|
thecurve.SubDivide(nsnull,aPolyPath,aCurIndex);
|
|
break;
|
|
case eInside:
|
|
thecurve.SetPoints(aPoints[6].x,aPoints[6].y,aPoints[7].x,aPoints[7].y,aPoints[8].x,aPoints[8].y);
|
|
thecurve.SubDivide(nsnull,aPolyPath,aCurIndex);
|
|
aPolyPath[*aCurIndex].x = aPoints[9].x;
|
|
aPolyPath[*aCurIndex].y = aPoints[9].y;
|
|
(*aCurIndex)++;
|
|
thecurve.SetPoints(aPoints[9].x,aPoints[9].y,aPoints[10].x,aPoints[10].y,aPoints[11].x,aPoints[11].y);
|
|
thecurve.SubDivide(nsnull,aPolyPath,aCurIndex);
|
|
break;
|
|
case eCalc:
|
|
thecurve.SetPoints( (aPoints[0].x+aPoints[11].x)>>1,(aPoints[0].y+aPoints[11].y)>>1,
|
|
(aPoints[1].x+aPoints[10].x)>>1,(aPoints[1].y+aPoints[10].y)>>1,
|
|
(aPoints[2].x+aPoints[9].x)>>1,(aPoints[2].y+aPoints[9].y)>>1);
|
|
thecurve.SubDivide(nsnull,aPolyPath,aCurIndex);
|
|
aPolyPath[*aCurIndex].x = (aPoints[3].x+aPoints[8].x)>>1;
|
|
aPolyPath[*aCurIndex].y = (aPoints[3].y+aPoints[8].y)>>1;
|
|
(*aCurIndex)++;
|
|
thecurve.SetPoints( (aPoints[3].x+aPoints[8].x)>>1,(aPoints[3].y+aPoints[8].y)>>1,
|
|
(aPoints[4].x+aPoints[7].x)>>1,(aPoints[4].y+aPoints[7].y)>>1,
|
|
(aPoints[5].x+aPoints[6].x)>>1,(aPoints[5].y+aPoints[6].y)>>1);
|
|
thecurve.SubDivide(nsnull,aPolyPath,aCurIndex);
|
|
break;
|
|
case eCalcRev:
|
|
thecurve.SetPoints( (aPoints[5].x+aPoints[6].x)>>1,(aPoints[5].y+aPoints[6].y)>>1,
|
|
(aPoints[4].x+aPoints[7].x)>>1,(aPoints[4].y+aPoints[7].y)>>1,
|
|
(aPoints[3].x+aPoints[8].x)>>1,(aPoints[3].y+aPoints[8].y)>>1);
|
|
thecurve.SubDivide(nsnull,aPolyPath,aCurIndex);
|
|
aPolyPath[*aCurIndex].x = (aPoints[2].x+aPoints[9].x)>>1;
|
|
aPolyPath[*aCurIndex].y = (aPoints[2].y+aPoints[9].y)>>1;
|
|
(*aCurIndex)++;
|
|
thecurve.SetPoints( (aPoints[2].x+aPoints[9].x)>>1,(aPoints[2].y+aPoints[9].y)>>1,
|
|
(aPoints[1].x+aPoints[10].x)>>1,(aPoints[1].y+aPoints[10].y)>>1,
|
|
(aPoints[0].x+aPoints[11].x)>>1,(aPoints[0].y+aPoints[11].y)>>1);
|
|
thecurve.SubDivide(nsnull,aPolyPath,aCurIndex);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/** ---------------------------------------------------
|
|
* See documentation in nsCSSRendering.h
|
|
* @update 4/13/99 dwc
|
|
*/
|
|
void
|
|
QBCurve::SubDivide(nsIRenderingContext *aRenderingContext,nsPoint aPointArray[],PRInt32 *aCurIndex)
|
|
{
|
|
QBCurve curve1,curve2;
|
|
PRInt16 fx,fy,smag;
|
|
|
|
// divide the curve into 2 pieces
|
|
MidPointDivide(&curve1,&curve2);
|
|
|
|
fx = (PRInt16)abs(curve1.mAnc2.x - this->mCon.x);
|
|
fy = (PRInt16)abs(curve1.mAnc2.y - this->mCon.y);
|
|
|
|
smag = fx+fy-(PR_MIN(fx,fy)>>1);
|
|
//smag = fx*fx + fy*fy;
|
|
|
|
if (smag>1){
|
|
// split the curve again
|
|
curve1.SubDivide(aRenderingContext,aPointArray,aCurIndex);
|
|
curve2.SubDivide(aRenderingContext,aPointArray,aCurIndex);
|
|
}else{
|
|
if(aPointArray ) {
|
|
// save the points for further processing
|
|
aPointArray[*aCurIndex].x = curve1.mAnc2.x;
|
|
aPointArray[*aCurIndex].y = curve1.mAnc2.y;
|
|
(*aCurIndex)++;
|
|
aPointArray[*aCurIndex].x = curve2.mAnc2.x;
|
|
aPointArray[*aCurIndex].y = curve2.mAnc2.y;
|
|
(*aCurIndex)++;
|
|
}else{
|
|
// draw the curve
|
|
|
|
|
|
nsTransform2D *aTransform;
|
|
aRenderingContext->GetCurrentTransform(aTransform);
|
|
|
|
|
|
#ifdef DCDEBUG
|
|
nscoord x1,x2,x3,x4,y1,y2,y3,y4;
|
|
float fx1,fx2,fx3,fx4,fy1,fy2,fy3,fy4;
|
|
fx1 = x1 = curve1.mAnc1.x;
|
|
fx2 = x2 = curve1.mAnc2.x;
|
|
fx3 = x3 = curve2.mAnc1.x;
|
|
fx4 = x4 = curve2.mAnc2.x;
|
|
fy1 = y1 = curve1.mAnc1.y;
|
|
fy2 = y2 = curve1.mAnc2.y;
|
|
fy3 = y3 = curve2.mAnc1.y;
|
|
fy4 = y4 = curve2.mAnc2.y;
|
|
aTransform->TransformCoord(&x1,&y1);
|
|
aTransform->TransformCoord(&x2,&y2);
|
|
aTransform->TransformCoord(&x3,&y3);
|
|
aTransform->TransformCoord(&x4,&y4);
|
|
aTransform->Transform(&fx1,&fy1);
|
|
aTransform->Transform(&fx2,&fy2);
|
|
aTransform->Transform(&fx3,&fy3);
|
|
aTransform->Transform(&fx4,&fy4);
|
|
#endif
|
|
|
|
aRenderingContext->DrawLine(curve1.mAnc1.x,curve1.mAnc1.y,curve1.mAnc2.x,curve1.mAnc2.y);
|
|
aRenderingContext->DrawLine(curve1.mAnc2.x,curve1.mAnc2.y,curve2.mAnc2.x,curve2.mAnc2.y);
|
|
|
|
#ifdef DCDEBUG
|
|
printf("L1 %d %d %d %d X %f %f %f %f Rnd %d %d %d %d Dif %d %d\n",
|
|
curve1.mAnc1.x,curve1.mAnc1.y,curve1.mAnc2.x,curve1.mAnc2.y,
|
|
fx1,fy1,fx2,fy2,
|
|
x1,y1,x2,y2,
|
|
x2-x1,y2-y1);
|
|
|
|
printf("L2 %d %d %d %d X %f %f %f %f Rnd %d %d %d %d Dif %d %d\n",
|
|
curve1.mAnc1.x,curve1.mAnc1.y,curve1.mAnc2.x,curve1.mAnc2.y,
|
|
fx2,fy2,fx4,fy4,
|
|
x2,y2,x4,y4,
|
|
x4-x2,y4-y2);
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
|
|
/** ---------------------------------------------------
|
|
* See documentation in nsCSSRendering.h
|
|
* @update 4/13/99 dwc
|
|
*/
|
|
void
|
|
QBCurve::MidPointDivide(QBCurve *A,QBCurve *B)
|
|
{
|
|
double c1x,c1y,c2x,c2y;
|
|
nsPoint a1;
|
|
|
|
|
|
c1x = (mAnc1.x+mCon.x)/2.0;
|
|
c1y = (mAnc1.y+mCon.y)/2.0;
|
|
c2x = (mAnc2.x+mCon.x)/2.0;
|
|
c2y = (mAnc2.y+mCon.y)/2.0;
|
|
|
|
a1.x = (PRInt32)((c1x + c2x)/2.0);
|
|
a1.y = (PRInt32)((c1y + c2y)/2.0);
|
|
|
|
// put the math into our 2 new curves
|
|
A->mAnc1 = this->mAnc1;
|
|
A->mCon.x = (PRInt16)c1x;
|
|
A->mCon.y = (PRInt16)c1y;
|
|
A->mAnc2 = a1;
|
|
B->mAnc1 = a1;
|
|
B->mCon.x = (PRInt16)c2x;
|
|
B->mCon.y = (PRInt16)c2y;
|
|
B->mAnc2 = this->mAnc2;
|
|
}
|