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git-svn-id: svn://10.0.0.236/trunk@42405 18797224-902f-48f8-a5cc-f745e15eee43
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pierre%netscape.com
233
mozilla/layout/forms/nsGfxButtonControlFrame.cpp
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233
mozilla/layout/forms/nsGfxButtonControlFrame.cpp
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/* -*- 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 License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nsGfxButtonControlFrame.h"
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#include "nsHTMLAtoms.h"
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#include "nsFormFrame.h"
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#include "nsIFormControl.h"
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#include "nsIContent.h"
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#include "nsIButton.h"
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#include "nsINameSpaceManager.h"
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static NS_DEFINE_IID(kIButtonIID, NS_IBUTTON_IID);
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nsresult
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NS_NewGfxButtonControlFrame(nsIFrame** aNewFrame)
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{
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NS_PRECONDITION(aNewFrame, "null OUT ptr");
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if (nsnull == aNewFrame) {
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return NS_ERROR_NULL_POINTER;
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}
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nsGfxButtonControlFrame* it = new nsGfxButtonControlFrame;
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if (!it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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*aNewFrame = it;
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return NS_OK;
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}
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nsGfxButtonControlFrame::nsGfxButtonControlFrame()
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{
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mRenderer.SetNameSpace(kNameSpaceID_None);
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}
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NS_IMETHODIMP
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nsGfxButtonControlFrame::Init(nsIPresContext& aPresContext,
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nsIContent* aContent,
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nsIFrame* aParent,
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nsIStyleContext* aContext,
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nsIFrame* aPrevInFlow)
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{
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nsresult rv = Inherited::Init(aPresContext, aContent, aParent, aContext, aPrevInFlow);
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mRenderer.SetFrame(this,aPresContext);
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return rv;
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}
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//
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// ReResolveStyleContext
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//
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// When the style context changes, make sure that all of our styles are still up to date.
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//
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NS_IMETHODIMP
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nsGfxButtonControlFrame::ReResolveStyleContext ( nsIPresContext* aPresContext, nsIStyleContext* aParentContext,
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PRInt32 aParentChange,
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nsStyleChangeList* aChangeList, PRInt32* aLocalChange)
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{
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// this re-resolves |mStyleContext|, so it may change
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nsresult rv = Inherited::ReResolveStyleContext(aPresContext, aParentContext,
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aParentChange, aChangeList, aLocalChange);
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if (NS_FAILED(rv)) {
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return rv;
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}
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if (NS_COMFALSE != rv) { // frame style changed
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if (aLocalChange) {
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aParentChange = *aLocalChange; // tell children about or change
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}
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}
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mRenderer.ReResolveStyles(*aPresContext, aParentChange, aChangeList, aLocalChange);
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return rv;
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} // ReResolveStyleContext
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NS_METHOD
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nsGfxButtonControlFrame::Paint(nsIPresContext& aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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nsFramePaintLayer aWhichLayer)
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{
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const nsStyleDisplay* disp = (const nsStyleDisplay*)
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mStyleContext->GetStyleData(eStyleStruct_Display);
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if (!disp->mVisible)
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return NS_OK;
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nsRect rect(0, 0, mRect.width, mRect.height);
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mRenderer.PaintButton(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer, rect);
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if (NS_FRAME_PAINT_LAYER_FOREGROUND == aWhichLayer) {
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nsString label;
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nsresult result = GetValue(&label);
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if (NS_CONTENT_ATTR_HAS_VALUE != result) {
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GetDefaultLabel(label);
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}
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nsRect content;
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mRenderer.GetButtonContentRect(rect,content);
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// paint the title
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const nsStyleFont* fontStyle = (const nsStyleFont*)mStyleContext->GetStyleData(eStyleStruct_Font);
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const nsStyleColor* colorStyle = (const nsStyleColor*)mStyleContext->GetStyleData(eStyleStruct_Color);
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aRenderingContext.SetFont(fontStyle->mFont);
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PRBool clipState;
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aRenderingContext.PushState();
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aRenderingContext.SetClipRect(rect, nsClipCombine_kIntersect, clipState);
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// if disabled paint
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if (PR_TRUE == mRenderer.isDisabled())
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{
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float p2t;
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aPresContext.GetScaledPixelsToTwips(&p2t);
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nscoord pixel = NSIntPixelsToTwips(1, p2t);
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aRenderingContext.SetColor(NS_RGB(255,255,255));
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aRenderingContext.DrawString(label, content.x + pixel, content.y+ pixel);
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}
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aRenderingContext.SetColor(colorStyle->mColor);
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aRenderingContext.DrawString(label, content.x, content.y);
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aRenderingContext.PopState(clipState);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsGfxButtonControlFrame::AttributeChanged(nsIPresContext* aPresContext,
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nsIContent* aChild,
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nsIAtom* aAttribute,
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PRInt32 aHint)
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{
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if (nsHTMLAtoms::value == aAttribute) {
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// redraw button with the changed value
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Invalidate(mRect, PR_FALSE);
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}
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return NS_OK;
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}
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NS_METHOD
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nsGfxButtonControlFrame::Reflow(nsIPresContext& aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus)
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{
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// add ourself as an nsIFormControlFrame
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if (!mFormFrame && (eReflowReason_Initial == aReflowState.reason)) {
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nsFormFrame::AddFormControlFrame(aPresContext, *this);
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}
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if ((NS_FORMSIZE_NOTSET != mSuggestedWidth) && (
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NS_FORMSIZE_NOTSET != mSuggestedHeight))
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{
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aDesiredSize.width = mSuggestedWidth;
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aDesiredSize.height = mSuggestedHeight;
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aDesiredSize.ascent = mSuggestedHeight;
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aDesiredSize.descent = 0;
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if (aDesiredSize.maxElementSize) {
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aDesiredSize.maxElementSize->width = mSuggestedWidth;
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aDesiredSize.maxElementSize->height = mSuggestedWidth;
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}
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if (nsnull != aDesiredSize.maxElementSize) {
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aDesiredSize.maxElementSize->width = aDesiredSize.width;
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aDesiredSize.maxElementSize->height = aDesiredSize.height;
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}
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aStatus = NS_FRAME_COMPLETE;
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return NS_OK;
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}
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nsSize ignore;
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GetDesiredSize(&aPresContext, aReflowState, aDesiredSize, ignore);
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// if our size is intrinsic. Then we need to return the size we really need
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// so include our inner borders we use for focus.
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nsMargin added = mRenderer.GetAddedButtonBorderAndPadding();
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if (aReflowState.mComputedWidth == NS_INTRINSICSIZE)
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aDesiredSize.width += added.left + added.right;
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if (aReflowState.mComputedHeight == NS_INTRINSICSIZE)
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aDesiredSize.height += added.top + added.bottom;
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nsMargin bp(0,0,0,0);
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AddBordersAndPadding(&aPresContext, aReflowState, aDesiredSize, bp);
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if (nsnull != aDesiredSize.maxElementSize) {
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aDesiredSize.AddBorderPaddingToMaxElementSize(bp);
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aDesiredSize.maxElementSize->width += added.left + added.right;
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aDesiredSize.maxElementSize->height += added.top + added.bottom;
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}
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aStatus = NS_FRAME_COMPLETE;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsGfxButtonControlFrame::HandleEvent(nsIPresContext& aPresContext,
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nsGUIEvent* aEvent,
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nsEventStatus& aEventStatus)
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{
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// if disabled do nothing
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if (mRenderer.isDisabled()) {
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return NS_OK;
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}
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return Inherited::HandleEvent(aPresContext, aEvent, aEventStatus);
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}
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