/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: NPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Netscape Public License * Version 1.1 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://www.mozilla.org/NPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is mozilla.org code. * * The Initial Developer of the Original Code is * Netscape Communications Corporation. * Portions created by the Initial Developer are Copyright (C) 1998 * the Initial Developer. All Rights Reserved. * * Contributor(s): * Roland Mainz * * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the NPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the NPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ #include "nsDeviceContextPS.h" #include "nsRenderingContextPS.h" #include "nsString.h" #include "nsFontMetricsPS.h" #include "nsPostScriptObj.h" static NS_DEFINE_IID(kDeviceContextIID, NS_IDEVICE_CONTEXT_IID); static NS_DEFINE_IID(kIDeviceContextSpecPSIID, NS_IDEVICE_CONTEXT_SPEC_PS_IID); /** --------------------------------------------------- * See documentation in nsIDeviceContext.h * @update 12/21/98 dwc */ nsDeviceContextPS :: nsDeviceContextPS() : DeviceContextImpl() { mSpec = nsnull; mParentDeviceContext = nsnull; } /** --------------------------------------------------- * See documentation in nsIDeviceContext.h * @update 12/21/98 dwc */ nsDeviceContextPS :: ~nsDeviceContextPS() { NS_IF_RELEASE(mSpec); NS_IF_RELEASE(mParentDeviceContext); } NS_IMETHODIMP nsDeviceContextPS :: SetSpec(nsIDeviceContextSpec* aSpec) { mSpec = aSpec; NS_ADDREF(aSpec); return NS_OK; } NS_IMPL_ISUPPORTS_INHERITED1(nsDeviceContextPS, DeviceContextImpl, nsIDeviceContextPS) /** --------------------------------------------------- * See documentation in nsDeviceContextPS.h * @update 12/21/98 dwc */ NS_IMETHODIMP nsDeviceContextPS::InitDeviceContextPS(nsIDeviceContext *aCreatingDeviceContext,nsIDeviceContext *aParentContext) { float origscale, newscale; float t2d, a2d; mDepth = 1; // just for arguments sake mTwipsToPixels = (float)72.0/(float)NSIntPointsToTwips(72); mPixelsToTwips = 1.0f / mTwipsToPixels; GetTwipsToDevUnits(newscale); aParentContext->GetTwipsToDevUnits(origscale); mCPixelScale = newscale / origscale; aParentContext->GetTwipsToDevUnits(t2d); aParentContext->GetAppUnitsToDevUnits(a2d); mAppUnitsToDevUnits = (a2d / t2d) * mTwipsToPixels; mDevUnitsToAppUnits = 1.0f / mAppUnitsToDevUnits; mParentDeviceContext = aParentContext; NS_ASSERTION(mParentDeviceContext, "aCreatingDeviceContext cannot be NULL!!!"); NS_ADDREF(mParentDeviceContext); return NS_OK; } /** --------------------------------------------------- * Create a Postscript RenderingContext. This will create a RenderingContext * from the deligate RenderingContext and intall that into our Postscript RenderingContext. * @update 12/21/98 dwc * @param aContext -- our newly created Postscript RenderingContextPS * @return -- NS_OK if everything succeeded. */ NS_IMETHODIMP nsDeviceContextPS :: CreateRenderingContext(nsIRenderingContext *&aContext) { nsresult rv = NS_ERROR_OUT_OF_MEMORY; aContext = new nsRenderingContextPS(); if (nsnull != aContext){ NS_ADDREF(aContext); rv = ((nsRenderingContextPS*) aContext)->Init(this); }else{ rv = NS_ERROR_OUT_OF_MEMORY; } if (NS_FAILED(rv)) { NS_IF_RELEASE(aContext); } return rv; } /** --------------------------------------------------- * See documentation in nsIDeviceContext.h * @update 12/21/98 dwc */ NS_IMETHODIMP nsDeviceContextPS :: SupportsNativeWidgets(PRBool &aSupportsWidgets) { aSupportsWidgets = PR_FALSE; return NS_OK; } /** --------------------------------------------------- * See documentation in nsIDeviceContext.h * @update 12/21/98 dwc */ NS_IMETHODIMP nsDeviceContextPS :: GetScrollBarDimensions(float &aWidth, float &aHeight) const { //XXX: Hardcoded values for Postscript aWidth = 20; aHeight = 20; return NS_OK; } /** --------------------------------------------------- * See documentation in nsIDeviceContext.h * @update 12/21/98 dwc */ NS_IMETHODIMP nsDeviceContextPS :: GetDrawingSurface(nsIRenderingContext &aContext, nsDrawingSurface &aSurface) { return NS_OK; } /** --------------------------------------------------- * See documentation in nsIDeviceContext.h * @update 12/21/98 dwc */ NS_IMETHODIMP nsDeviceContextPS::GetDepth(PRUint32& aDepth) { return(1); // postscript is 1 bit } /** --------------------------------------------------- * See documentation in nsIDeviceContext.h * @update 12/21/98 dwc */ NS_IMETHODIMP nsDeviceContextPS :: CheckFontExistence(const nsString& aFontName) { // XXX this needs to find out if this font is supported for postscript return NS_OK; } NS_IMETHODIMP nsDeviceContextPS :: GetSystemFont(nsSystemFontID aID, nsFont *aFont) const { if (mParentDeviceContext != nsnull) { return mParentDeviceContext->GetSystemFont(aID, aFont); } return NS_ERROR_FAILURE; } /** --------------------------------------------------- * See documentation in nsIDeviceContext.h * @update 12/21/98 dwc */ NS_IMETHODIMP nsDeviceContextPS::GetDeviceSurfaceDimensions(PRInt32 &aWidth, PRInt32 &aHeight) { nsIDeviceContextSpecPS *psSpec; nsresult rv = NS_ERROR_FAILURE; float width, height; float top,left,right,bottom; if ( nsnull != mSpec ) { rv = mSpec->QueryInterface(kIDeviceContextSpecPSIID, (void **) &psSpec); if (NS_SUCCEEDED(rv)) { psSpec->GetPageDimensions( width, height ); aWidth = NSToIntRound((72.0f*width) * mDevUnitsToAppUnits); aHeight = NSToIntRound((72.0f*height) * mDevUnitsToAppUnits); } } return rv; } /** --------------------------------------------------- * See documentation in nsIDeviceContext.h */ NS_IMETHODIMP nsDeviceContextPS::GetRect(nsRect &aRect) { PRInt32 width, height; nsresult rv; rv = GetDeviceSurfaceDimensions(width, height); aRect.x = 0; aRect.y = 0; aRect.width = width; aRect.height = height; return rv; } /** --------------------------------------------------- * See documentation in nsIDeviceContext.h */ NS_IMETHODIMP nsDeviceContextPS::GetClientRect(nsRect &aRect) { return GetRect(aRect); } /** --------------------------------------------------- * See documentation in nsIDeviceContext.h * @update 12/21/98 dwc */ NS_IMETHODIMP nsDeviceContextPS::GetDeviceContextFor(nsIDeviceContextSpec *aDevice,nsIDeviceContext *&aContext) { return NS_OK; } /** --------------------------------------------------- * See documentation in nsIDeviceContext.h * @update 12/21/98 dwc */ NS_IMETHODIMP nsDeviceContextPS::BeginDocument(PRUnichar * aTitle) { nsIDeviceContextSpecPS *psSpec; nsresult res = NS_OK; if ( nsnull != mSpec ) { mPSObj = new nsPostScriptObj(); res = mSpec->QueryInterface(kIDeviceContextSpecPSIID, (void **) &psSpec); if (NS_SUCCEEDED(res)) { res = mPSObj->Init(psSpec,aTitle); } } return res; } /** --------------------------------------------------- * See documentation in nsIDeviceContext.h * @update 12/21/98 dwc */ NS_IMETHODIMP nsDeviceContextPS::EndDocument(void) { delete mPSObj; mPSObj = nsnull; return NS_OK; } /** --------------------------------------------------- * See documentation in nsIDeviceContext.h * @update 12/21/98 dwc */ NS_IMETHODIMP nsDeviceContextPS::BeginPage(void) { // begin the page mPSObj->begin_page(); return NS_OK; } /** --------------------------------------------------- * See documentation in nsIDeviceContext.h * @update 12/21/98 dwc */ NS_IMETHODIMP nsDeviceContextPS::EndPage(void) { // end the page mPSObj->end_page(); return NS_OK; } /** --------------------------------------------------- * See documentation in nsIDeviceContext.h * @update 12/21/98 dwc */ NS_IMETHODIMP nsDeviceContextPS :: ConvertPixel(nscolor aColor, PRUint32 & aPixel) { aPixel = aColor; return NS_OK; } class nsFontCachePS : public nsFontCache { public: /* override DeviceContextImpl::CreateFontCache() */ NS_IMETHODIMP CreateFontMetricsInstance(nsIFontMetrics** aResult); }; NS_IMETHODIMP nsFontCachePS::CreateFontMetricsInstance(nsIFontMetrics** aResult) { NS_PRECONDITION(aResult, "null out param"); nsIFontMetrics *fm = new nsFontMetricsPS(); if (!fm) return NS_ERROR_OUT_OF_MEMORY; NS_ADDREF(fm); *aResult = fm; return NS_OK; } /* override DeviceContextImpl::CreateFontCache() */ NS_IMETHODIMP nsDeviceContextPS::CreateFontCache() { mFontCache = new nsFontCachePS(); if (nsnull == mFontCache) { return NS_ERROR_OUT_OF_MEMORY; } mFontCache->Init(this); return NS_OK; }