160 lines
4.8 KiB
C++
Executable File
160 lines
4.8 KiB
C++
Executable File
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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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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* Patrick C. Beard <beard@netscape.com>
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*/
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#include "nsGraphicsImpl.h"
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#include "nsIDeviceContext.h"
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#include "nsIFontMetrics.h"
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#include "nsFont.h"
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#include "nsCRT.h"
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NS_IMPL_ISUPPORTS1(nsGraphicsImpl, nsIGraphics)
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nsGraphicsImpl::nsGraphicsImpl(nsIRenderingContext* aRenderer)
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: mRenderer(aRenderer)
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{
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NS_INIT_ISUPPORTS();
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// hack: back out the coordinate transformation to use pixels.
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nsCOMPtr<nsIDeviceContext> dc;
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mRenderer->GetDeviceContext(*getter_AddRefs(dc));
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dc->GetDevUnitsToAppUnits(mDev2App);
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mRenderer->Scale(mDev2App, mDev2App);
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}
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NS_IMETHODIMP nsGraphicsImpl::GetColor(nscolor *aColor)
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{
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return mRenderer->GetColor(*aColor);
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}
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NS_IMETHODIMP nsGraphicsImpl::SetColor(nscolor aColor)
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{
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return mRenderer->SetColor(aColor);
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}
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NS_IMETHODIMP nsGraphicsImpl::ClipRect(nscoord x, nscoord y, nscoord width, nscoord height)
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{
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nsRect r(x, y, width, height);
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PRBool clipEmpty;
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return mRenderer->SetClipRect(r, nsClipCombine_kIntersect, clipEmpty);
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}
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NS_IMETHODIMP nsGraphicsImpl::DrawLine(nscoord x1, nscoord y1, nscoord x2, nscoord y2)
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{
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return mRenderer->DrawLine(x1, y1, x2, y2);
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}
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NS_IMETHODIMP nsGraphicsImpl::DrawRect(nscoord x, nscoord y, nscoord width, nscoord height)
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{
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return mRenderer->DrawRect(x, y, width, height);
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}
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NS_IMETHODIMP nsGraphicsImpl::FillRect(nscoord x, nscoord y, nscoord width, nscoord height)
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{
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return mRenderer->FillRect(x, y, width, height);
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}
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NS_IMETHODIMP nsGraphicsImpl::InvertRect(nscoord x, nscoord y, nscoord width, nscoord height)
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{
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return mRenderer->InvertRect(x, y, width, height);
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}
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NS_IMETHODIMP nsGraphicsImpl::DrawEllipse(nscoord x, nscoord y, nscoord width, nscoord height)
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{
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return mRenderer->DrawEllipse(x, y, width, height);
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}
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NS_IMETHODIMP nsGraphicsImpl::FillEllipse(nscoord x, nscoord y, nscoord width, nscoord height)
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{
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return mRenderer->FillEllipse(x, y, width, height);
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}
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NS_IMETHODIMP nsGraphicsImpl::InvertEllipse(nscoord x, nscoord y, nscoord width, nscoord height)
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{
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// return mRenderer->InvertEllipse(x, y, width, height);
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsGraphicsImpl::DrawArc(nscoord x, nscoord y, nscoord width, nscoord height, float startAngle, float endAngle)
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{
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return mRenderer->DrawArc(x, y, width, height, startAngle, endAngle);
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}
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NS_IMETHODIMP nsGraphicsImpl::FillArc(nscoord x, nscoord y, nscoord width, nscoord height, float startAngle, float endAngle)
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{
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return mRenderer->FillArc(x, y, width, height, startAngle, endAngle);
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}
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NS_IMETHODIMP nsGraphicsImpl::InvertArc(nscoord x, nscoord y, nscoord width, nscoord height, float startAngle, float endAngle)
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{
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// return mRenderer->InvertArc(x, y, width, height, startAngle, endAngle);
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsGraphicsImpl::DrawPolygon(PRUint32 count, PRInt32 *points)
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{
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return mRenderer->DrawPolygon((nsPoint*)points, count / 2);
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}
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NS_IMETHODIMP nsGraphicsImpl::FillPolygon(PRUint32 count, PRInt32 *points)
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{
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return mRenderer->FillPolygon((nsPoint*)points, count / 2);
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}
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NS_IMETHODIMP nsGraphicsImpl::InvertPolygon(PRUint32 count, PRInt32 *points)
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{
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// return mRenderer->InvertPolygon(points);
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsGraphicsImpl::DrawString(const PRUnichar *text, nscoord x, nscoord y)
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{
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// this works around a bug in the way the ascent calculation is done.
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nsCOMPtr<nsIFontMetrics> metrics;
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if (mRenderer->GetFontMetrics(*getter_AddRefs(metrics)) == NS_OK) {
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nscoord ascent = 0;
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metrics->GetMaxAscent(ascent);
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y -= ascent;
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return mRenderer->DrawString(text, nsCRT::strlen(text), x, y);
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}
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return NS_ERROR_FAILURE;
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}
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NS_IMETHODIMP nsGraphicsImpl::SetFont(const PRUnichar *name, nscoord size)
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{
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size = NS_STATIC_CAST(nscoord, size * mDev2App);
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nsAutoString nameString(name);
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nsFont font(nameString, NS_FONT_STYLE_NORMAL, NS_FONT_VARIANT_NORMAL, NS_FONT_WEIGHT_NORMAL, NS_FONT_DECORATION_NONE, size);
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return mRenderer->SetFont(font);
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}
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NS_IMETHODIMP nsGraphicsImpl::Gsave(void)
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{
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return mRenderer->PushState();
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}
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NS_IMETHODIMP nsGraphicsImpl::Grestore(void)
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{
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PRBool unused;
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return mRenderer->PopState(unused);
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}
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