1*cdf0e10cSrcweir /************************************************************************* 2*cdf0e10cSrcweir * 3*cdf0e10cSrcweir * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4*cdf0e10cSrcweir * 5*cdf0e10cSrcweir * Copyright 2000, 2010 Oracle and/or its affiliates. 6*cdf0e10cSrcweir * 7*cdf0e10cSrcweir * OpenOffice.org - a multi-platform office productivity suite 8*cdf0e10cSrcweir * 9*cdf0e10cSrcweir * This file is part of OpenOffice.org. 10*cdf0e10cSrcweir * 11*cdf0e10cSrcweir * OpenOffice.org is free software: you can redistribute it and/or modify 12*cdf0e10cSrcweir * it under the terms of the GNU Lesser General Public License version 3 13*cdf0e10cSrcweir * only, as published by the Free Software Foundation. 14*cdf0e10cSrcweir * 15*cdf0e10cSrcweir * OpenOffice.org is distributed in the hope that it will be useful, 16*cdf0e10cSrcweir * but WITHOUT ANY WARRANTY; without even the implied warranty of 17*cdf0e10cSrcweir * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ************************************************************************/ 27*cdf0e10cSrcweir 28*cdf0e10cSrcweir #ifndef SD_PREVIEW_RENDERER_HXX 29*cdf0e10cSrcweir #define SD_PREVIEW_RENDERER_HXX 30*cdf0e10cSrcweir 31*cdf0e10cSrcweir #include "drawview.hxx" 32*cdf0e10cSrcweir #include <vcl/image.hxx> 33*cdf0e10cSrcweir #include <vcl/virdev.hxx> 34*cdf0e10cSrcweir #include <svl/listener.hxx> 35*cdf0e10cSrcweir #include <memory> 36*cdf0e10cSrcweir 37*cdf0e10cSrcweir 38*cdf0e10cSrcweir class OutputDevice; 39*cdf0e10cSrcweir class SdPage; 40*cdf0e10cSrcweir class VirtualDevice; 41*cdf0e10cSrcweir 42*cdf0e10cSrcweir namespace sd { 43*cdf0e10cSrcweir 44*cdf0e10cSrcweir class DrawDocShell; 45*cdf0e10cSrcweir class DrawView; 46*cdf0e10cSrcweir 47*cdf0e10cSrcweir 48*cdf0e10cSrcweir class PreviewRenderer 49*cdf0e10cSrcweir : public SfxListener 50*cdf0e10cSrcweir { 51*cdf0e10cSrcweir public: 52*cdf0e10cSrcweir /** Create a new preview renderer that takes some of its inital values 53*cdf0e10cSrcweir from the given output device. 54*cdf0e10cSrcweir @param pTemplate 55*cdf0e10cSrcweir May be NULL. 56*cdf0e10cSrcweir @param bPaintFrame 57*cdf0e10cSrcweir When <TRUE/> (the default) then a frame is painted around the 58*cdf0e10cSrcweir preview. This makes the actual preview smaller. 59*cdf0e10cSrcweir */ 60*cdf0e10cSrcweir PreviewRenderer ( 61*cdf0e10cSrcweir OutputDevice* pTemplate = NULL, 62*cdf0e10cSrcweir const bool bPaintFrame = true); 63*cdf0e10cSrcweir 64*cdf0e10cSrcweir ~PreviewRenderer (void); 65*cdf0e10cSrcweir 66*cdf0e10cSrcweir /** Render a page with the given pixel size. 67*cdf0e10cSrcweir Use this version when only the width of the preview is known to the 68*cdf0e10cSrcweir caller. The height is then calculated according to the aspect 69*cdf0e10cSrcweir ration of the given page. 70*cdf0e10cSrcweir @param pPage 71*cdf0e10cSrcweir The page to render. 72*cdf0e10cSrcweir @param nWidth 73*cdf0e10cSrcweir The width of the preview in device coordinates. 74*cdf0e10cSrcweir @param sSubstitutionText 75*cdf0e10cSrcweir When the actual preview can not be created for some reason, then 76*cdf0e10cSrcweir this text is painted in an empty rectangle of the requested size 77*cdf0e10cSrcweir instead. 78*cdf0e10cSrcweir @param bObeyHighContrastMode 79*cdf0e10cSrcweir When <FALSE/> then the high contrast mode of the application is 80*cdf0e10cSrcweir ignored and the preview is rendered in normal mode. When 81*cdf0e10cSrcweir <TRUE/> and high contrast mode is active then the preview is 82*cdf0e10cSrcweir rendered in high contrast mode. 83*cdf0e10cSrcweir @param bDisplayPresentationObjects 84*cdf0e10cSrcweir When <FALSE/> then the PresObj place holders are not displayed 85*cdf0e10cSrcweir in the returned preview. 86*cdf0e10cSrcweir */ 87*cdf0e10cSrcweir Image RenderPage ( 88*cdf0e10cSrcweir const SdPage* pPage, 89*cdf0e10cSrcweir const sal_Int32 nWidth, 90*cdf0e10cSrcweir const String& sSubstitutionText, 91*cdf0e10cSrcweir const bool bObeyHighContrastMode = true, 92*cdf0e10cSrcweir const bool bDisplayPresentationObjects = true); 93*cdf0e10cSrcweir 94*cdf0e10cSrcweir /** Render a page with the given pixel size. 95*cdf0e10cSrcweir @param pPage 96*cdf0e10cSrcweir The page to render. 97*cdf0e10cSrcweir @param aPreviewPixelSize 98*cdf0e10cSrcweir The size in device coordinates of the preview. 99*cdf0e10cSrcweir @param sSubstitutionText 100*cdf0e10cSrcweir When the actual preview can not be created for some reason, then 101*cdf0e10cSrcweir this text is painted in an empty rectangle of the requested size 102*cdf0e10cSrcweir instead. 103*cdf0e10cSrcweir @param bObeyHighContrastMode 104*cdf0e10cSrcweir When <FALSE/> then the high contrast mode of the application is 105*cdf0e10cSrcweir ignored and the preview is rendered in normal mode. When 106*cdf0e10cSrcweir <TRUE/> and high contrast mode is active then the preview is 107*cdf0e10cSrcweir rendered in high contrast mode. 108*cdf0e10cSrcweir @param bDisplayPresentationObjects 109*cdf0e10cSrcweir When <FALSE/> then the PresObj place holders are not displayed 110*cdf0e10cSrcweir in the returned preview. 111*cdf0e10cSrcweir */ 112*cdf0e10cSrcweir Image RenderPage ( 113*cdf0e10cSrcweir const SdPage* pPage, 114*cdf0e10cSrcweir const Size aPreviewPixelSize, 115*cdf0e10cSrcweir const String& sSubstitutionText, 116*cdf0e10cSrcweir const bool bObeyHighContrastMode = true, 117*cdf0e10cSrcweir const bool bDisplayPresentationObjects = true); 118*cdf0e10cSrcweir 119*cdf0e10cSrcweir /** Render an image that contains the given substitution text instead of a 120*cdf0e10cSrcweir slide preview. 121*cdf0e10cSrcweir @param aPreviewPixelSize 122*cdf0e10cSrcweir The size in device coordinates of the image. 123*cdf0e10cSrcweir */ 124*cdf0e10cSrcweir Image RenderSubstitution ( 125*cdf0e10cSrcweir const Size& rPreviewPixelSize, 126*cdf0e10cSrcweir const String& sSubstitutionText); 127*cdf0e10cSrcweir 128*cdf0e10cSrcweir /** Scale the given bitmap by keeping its aspect ratio to the desired 129*cdf0e10cSrcweir width. Add a frame to it afterwards. 130*cdf0e10cSrcweir */ 131*cdf0e10cSrcweir Image ScaleBitmap ( 132*cdf0e10cSrcweir const BitmapEx& rBitmap, 133*cdf0e10cSrcweir int nWidth); 134*cdf0e10cSrcweir 135*cdf0e10cSrcweir protected: 136*cdf0e10cSrcweir virtual void Notify(SfxBroadcaster& rBC, const SfxHint& rHint); 137*cdf0e10cSrcweir 138*cdf0e10cSrcweir private: 139*cdf0e10cSrcweir ::std::auto_ptr<VirtualDevice> mpPreviewDevice; 140*cdf0e10cSrcweir ::std::auto_ptr<DrawView> mpView; 141*cdf0e10cSrcweir DrawDocShell* mpDocShellOfView; 142*cdf0e10cSrcweir int mnWidthOfView; 143*cdf0e10cSrcweir const Color maFrameColor; 144*cdf0e10cSrcweir const bool mbHasFrame; 145*cdf0e10cSrcweir static const int snSubstitutionTextSize; 146*cdf0e10cSrcweir // Width of the frame that is painted arround the preview. 147*cdf0e10cSrcweir static const int snFrameWidth; 148*cdf0e10cSrcweir 149*cdf0e10cSrcweir bool Initialize ( 150*cdf0e10cSrcweir const SdPage* pPage, 151*cdf0e10cSrcweir const Size& rPixelSize, 152*cdf0e10cSrcweir const bool bObeyHighContrastMode); 153*cdf0e10cSrcweir void Cleanup (void); 154*cdf0e10cSrcweir void PaintPage ( 155*cdf0e10cSrcweir const SdPage* pPage, 156*cdf0e10cSrcweir const bool bDisplayPresentationObjects); 157*cdf0e10cSrcweir void PaintSubstitutionText (const String& rSubstitutionText); 158*cdf0e10cSrcweir void PaintFrame (void); 159*cdf0e10cSrcweir 160*cdf0e10cSrcweir /** Set up the map mode so that the given page is renderer into a bitmap 161*cdf0e10cSrcweir with the specified width. 162*cdf0e10cSrcweir @param rPage 163*cdf0e10cSrcweir The page for which the preview is created. 164*cdf0e10cSrcweir @param rPixelSize 165*cdf0e10cSrcweir The size of the resulting preview bitmap. Note that this size 166*cdf0e10cSrcweir includes the frame. The actual preview is smaller accordingly. 167*cdf0e10cSrcweir */ 168*cdf0e10cSrcweir void SetupOutputSize (const SdPage& rPage, const Size& rPixelSize); 169*cdf0e10cSrcweir 170*cdf0e10cSrcweir /** When mpView is empty then create a new view and initialize it. 171*cdf0e10cSrcweir Otherwise just initialize it. 172*cdf0e10cSrcweir */ 173*cdf0e10cSrcweir void ProvideView (DrawDocShell* pDocShell); 174*cdf0e10cSrcweir }; 175*cdf0e10cSrcweir 176*cdf0e10cSrcweir } // end of namespace ::sd 177*cdf0e10cSrcweir 178*cdf0e10cSrcweir #endif 179