1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 // MARKER(update_precomp.py): autogen include statement, do not remove 23 #include "precompiled_drawinglayer.hxx" 24 25 #include <drawinglayer/tools/converters.hxx> 26 #include <drawinglayer/geometry/viewinformation2d.hxx> 27 #include <drawinglayer/primitive2d/modifiedcolorprimitive2d.hxx> 28 #include <basegfx/matrix/b2dhommatrixtools.hxx> 29 #include <drawinglayer/primitive2d/transformprimitive2d.hxx> 30 #include <drawinglayer/processor2d/processor2dtools.hxx> 31 #include <vcl/virdev.hxx> 32 33 #ifdef DBG_UTIL 34 #include <tools/stream.hxx> 35 #include <vcl/pngwrite.hxx> 36 #endif 37 38 ////////////////////////////////////////////////////////////////////////////// 39 40 namespace drawinglayer 41 { 42 namespace tools 43 { convertToBitmapEx(const drawinglayer::primitive2d::Primitive2DSequence & rSeq,const geometry::ViewInformation2D & rViewInformation2D,sal_uInt32 nDiscreteWidth,sal_uInt32 nDiscreteHeight,sal_uInt32 nMaxQuadratPixels)44 BitmapEx convertToBitmapEx( 45 const drawinglayer::primitive2d::Primitive2DSequence& rSeq, 46 const geometry::ViewInformation2D& rViewInformation2D, 47 sal_uInt32 nDiscreteWidth, 48 sal_uInt32 nDiscreteHeight, 49 sal_uInt32 nMaxQuadratPixels) 50 { 51 BitmapEx aRetval; 52 #ifdef DBG_UTIL 53 static bool bDoSaveForVisualControl(false); 54 #endif 55 56 if(rSeq.hasElements() && nDiscreteWidth && nDiscreteHeight) 57 { 58 // get destination size in pixels 59 const MapMode aMapModePixel(MAP_PIXEL); 60 const sal_uInt32 nViewVisibleArea(nDiscreteWidth * nDiscreteHeight); 61 double fReduceFactor(1.0); 62 drawinglayer::primitive2d::Primitive2DSequence aSequence(rSeq); 63 64 if(nViewVisibleArea > nMaxQuadratPixels) 65 { 66 // reduce render size 67 fReduceFactor = sqrt((double)nMaxQuadratPixels / (double)nViewVisibleArea); 68 nDiscreteWidth = basegfx::fround((double)nDiscreteWidth * fReduceFactor); 69 nDiscreteHeight = basegfx::fround((double)nDiscreteHeight * fReduceFactor); 70 71 const drawinglayer::primitive2d::Primitive2DReference aEmbed( 72 new drawinglayer::primitive2d::TransformPrimitive2D( 73 basegfx::tools::createScaleB2DHomMatrix(fReduceFactor, fReduceFactor), 74 rSeq)); 75 76 aSequence = drawinglayer::primitive2d::Primitive2DSequence(&aEmbed, 1); 77 } 78 79 const Point aEmptyPoint; 80 const Size aSizePixel(nDiscreteWidth, nDiscreteHeight); 81 geometry::ViewInformation2D aViewInformation2D(rViewInformation2D); 82 VirtualDevice maContent; 83 84 // prepare vdev 85 maContent.SetOutputSizePixel(aSizePixel, false); 86 maContent.SetMapMode(aMapModePixel); 87 88 // set to all white 89 maContent.SetBackground(Wallpaper(Color(COL_WHITE))); 90 maContent.Erase(); 91 92 // create pixel processor, also already takes care of AAing and 93 // checking the getOptionsDrawinglayer().IsAntiAliasing() switch. If 94 // not wanted, change after this call as needed 95 processor2d::BaseProcessor2D* pContentProcessor = processor2d::createPixelProcessor2DFromOutputDevice( 96 maContent, 97 aViewInformation2D); 98 99 if(pContentProcessor) 100 { 101 // render content 102 pContentProcessor->process(aSequence); 103 104 // get content 105 maContent.EnableMapMode(false); 106 const Bitmap aContent(maContent.GetBitmap(aEmptyPoint, aSizePixel)); 107 108 #ifdef DBG_UTIL 109 if(bDoSaveForVisualControl) 110 { 111 SvFileStream aNew((const String&)String(ByteString( "c:\\test_content.png" ), RTL_TEXTENCODING_UTF8), STREAM_WRITE|STREAM_TRUNC); 112 ::vcl::PNGWriter aPNGWriter(aContent); 113 aPNGWriter.Write(aNew); 114 } 115 #endif 116 // prepare for mask creation 117 maContent.SetMapMode(aMapModePixel); 118 119 // set alpha to all white (fully transparent) 120 maContent.Erase(); 121 122 // embed primitives to paint them black 123 const primitive2d::Primitive2DReference xRef( 124 new primitive2d::ModifiedColorPrimitive2D( 125 aSequence, 126 basegfx::BColorModifierSharedPtr( 127 new basegfx::BColorModifier_replace( 128 basegfx::BColor(0.0, 0.0, 0.0))))); 129 const primitive2d::Primitive2DSequence xSeq(&xRef, 1); 130 131 // render 132 pContentProcessor->process(xSeq); 133 delete pContentProcessor; 134 135 // get alpha cahannel from vdev 136 maContent.EnableMapMode(false); 137 const Bitmap aAlpha(maContent.GetBitmap(aEmptyPoint, aSizePixel)); 138 #ifdef DBG_UTIL 139 if(bDoSaveForVisualControl) 140 { 141 SvFileStream aNew((const String&)String(ByteString( "c:\\test_alpha.png" ), RTL_TEXTENCODING_UTF8), STREAM_WRITE|STREAM_TRUNC); 142 ::vcl::PNGWriter aPNGWriter(aAlpha); 143 aPNGWriter.Write(aNew); 144 } 145 #endif 146 147 // create BitmapEx result 148 aRetval = BitmapEx(aContent, AlphaMask(aAlpha)); 149 #ifdef DBG_UTIL 150 if(bDoSaveForVisualControl) 151 { 152 SvFileStream aNew((const String&)String(ByteString( "c:\\test_combined.png" ), RTL_TEXTENCODING_UTF8), STREAM_WRITE|STREAM_TRUNC); 153 ::vcl::PNGWriter aPNGWriter(aRetval); 154 aPNGWriter.Write(aNew); 155 } 156 #endif 157 } 158 } 159 160 return aRetval; 161 } 162 163 } // end of namespace tools 164 } // end of namespace drawinglayer 165 166 ////////////////////////////////////////////////////////////////////////////// 167 // eof 168