drawinglayer/source/primitive2d/wallpaperprimitive2d.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
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  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <drawinglayer/primitive2d/wallpaperprimitive2d.hxx>
  21 #include <drawinglayer/primitive2d/bitmapprimitive2d.hxx>
  22 #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
  23 #include <drawinglayer/primitive2d/fillgraphicprimitive2d.hxx>
  24 #include <basegfx/polygon/b2dpolygontools.hxx>
  25 #include <basegfx/polygon/b2dpolygon.hxx>
  26 #include <drawinglayer/primitive2d/maskprimitive2d.hxx>
  27 #include <basegfx/matrix/b2dhommatrixtools.hxx>
  28 #include <vcl/graph.hxx>
  29
  30
  31 namespace drawinglayer
  32 {
  33     namespace primitive2d
  34     {
  35         void WallpaperBitmapPrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& /*rViewInformation*/) const
  36         {
  37             Primitive2DReference aRetval;
  38
  39             if(!getLocalObjectRange().isEmpty() && !getBitmapEx().IsEmpty())
  40             {
  41                 // get bitmap PIXEL size
  42                 const Size& rPixelSize = getBitmapEx().GetSizePixel();
  43
  44                 if(rPixelSize.Width() > 0 && rPixelSize.Height() > 0)
  45                 {
  46                     if(WallpaperStyle::Scale == getWallpaperStyle())
  47                     {
  48                         // shortcut for scale; use simple BitmapPrimitive2D
  49                         basegfx::B2DHomMatrix aObjectTransform;
  50
  51                         aObjectTransform.set(0, 0, getLocalObjectRange().getWidth());
  52                         aObjectTransform.set(1, 1, getLocalObjectRange().getHeight());
  53                         aObjectTransform.set(0, 2, getLocalObjectRange().getMinX());
  54                         aObjectTransform.set(1, 2, getLocalObjectRange().getMinY());
  55
  56                         Primitive2DReference xReference(
  57                             new BitmapPrimitive2D(
  58                                 getBitmapEx(),
  59                                 aObjectTransform));
  60
  61                         aRetval = xReference;
  62                     }
  63                     else
  64                     {
  65                         // transform to logic size
  66                         basegfx::B2DHomMatrix aInverseViewTransformation(getViewTransformation());
  67                         aInverseViewTransformation.invert();
  68                         basegfx::B2DVector aLogicSize(rPixelSize.Width(), rPixelSize.Height());
  69                         aLogicSize = aInverseViewTransformation * aLogicSize;
  70
  71                         // apply layout
  72                         basegfx::B2DPoint aTargetTopLeft(getLocalObjectRange().getMinimum());
  73                         bool bUseTargetTopLeft(true);
  74                         bool bNeedsClipping(false);
  75
  76                         switch(getWallpaperStyle())
  77                         {
  78                             default: //case WallpaperStyle::Tile :, also WallpaperStyle::NONE and WallpaperStyle::ApplicationGradient
  79                             {
  80                                 bUseTargetTopLeft = false;
  81                                 break;
  82                             }
  83                             case WallpaperStyle::Scale :
  84                             {
  85                                 // handled by shortcut above
  86                                 break;
  87                             }
  88                             case WallpaperStyle::TopLeft :
  89                             {
  90                                 // nothing to do
  91                                 break;
  92                             }
  93                             case WallpaperStyle::Top :
  94                             {
  95                                 const basegfx::B2DPoint aCenter(getLocalObjectRange().getCenter());
  96                                 aTargetTopLeft.setX(aCenter.getX() - (aLogicSize.getX() * 0.5));
  97                                 break;
  98                             }
  99                             case WallpaperStyle::TopRight :
 100                             {
 101                                 aTargetTopLeft.setX(getLocalObjectRange().getMaxX() - aLogicSize.getX());
 102                                 break;
 103                             }
 104                             case WallpaperStyle::Left :
 105                             {
 106                                 const basegfx::B2DPoint aCenter(getLocalObjectRange().getCenter());
 107                                 aTargetTopLeft.setY(aCenter.getY() - (aLogicSize.getY() * 0.5));
 108                                 break;
 109                             }
 110                             case WallpaperStyle::Center :
 111                             {
 112                                 const basegfx::B2DPoint aCenter(getLocalObjectRange().getCenter());
 113                                 aTargetTopLeft = aCenter - (aLogicSize * 0.5);
 114                                 break;
 115                             }
 116                             case WallpaperStyle::Right :
 117                             {
 118                                 const basegfx::B2DPoint aCenter(getLocalObjectRange().getCenter());
 119                                 aTargetTopLeft.setX(getLocalObjectRange().getMaxX() - aLogicSize.getX());
 120                                 aTargetTopLeft.setY(aCenter.getY() - (aLogicSize.getY() * 0.5));
 121                                 break;
 122                             }
 123                             case WallpaperStyle::BottomLeft :
 124                             {
 125                                 aTargetTopLeft.setY(getLocalObjectRange().getMaxY() - aLogicSize.getY());
 126                                 break;
 127                             }
 128                             case WallpaperStyle::Bottom :
 129                             {
 130                                 const basegfx::B2DPoint aCenter(getLocalObjectRange().getCenter());
 131                                 aTargetTopLeft.setX(aCenter.getX() - (aLogicSize.getX() * 0.5));
 132                                 aTargetTopLeft.setY(getLocalObjectRange().getMaxY() - aLogicSize.getY());
 133                                 break;
 134                             }
 135                             case WallpaperStyle::BottomRight :
 136                             {
 137                                 aTargetTopLeft = getLocalObjectRange().getMaximum() - aLogicSize;
 138                                 break;
 139                             }
 140                         }
 141
 142                         if(bUseTargetTopLeft)
 143                         {
 144                             // fill target range
 145                             const basegfx::B2DRange aTargetRange(aTargetTopLeft, aTargetTopLeft + aLogicSize);
 146
 147                             // create aligned, single BitmapPrimitive2D
 148                             basegfx::B2DHomMatrix aObjectTransform;
 149
 150                             aObjectTransform.set(0, 0, aTargetRange.getWidth());
 151                             aObjectTransform.set(1, 1, aTargetRange.getHeight());
 152                             aObjectTransform.set(0, 2, aTargetRange.getMinX());
 153                             aObjectTransform.set(1, 2, aTargetRange.getMinY());
 154
 155                             Primitive2DReference xReference(
 156                                 new BitmapPrimitive2D(
 157                                     getBitmapEx(),
 158                                     aObjectTransform));
 159                             aRetval = xReference;
 160
 161                             // clip when not completely inside object range
 162                             bNeedsClipping = !getLocalObjectRange().isInside(aTargetRange);
 163                         }
 164                         else
 165                         {
 166                             // WallpaperStyle::Tile, WallpaperStyle::NONE, WallpaperStyle::ApplicationGradient
 167                             // convert to relative positions
 168                             const basegfx::B2DVector aRelativeSize(
 169                                 aLogicSize.getX() / (getLocalObjectRange().getWidth() ? getLocalObjectRange().getWidth() : 1.0),
 170                                 aLogicSize.getY() / (getLocalObjectRange().getHeight() ? getLocalObjectRange().getHeight() : 1.0));
 171                             basegfx::B2DPoint aRelativeTopLeft(0.0, 0.0);
 172
 173                             if(WallpaperStyle::Tile != getWallpaperStyle())
 174                             {
 175                                 aRelativeTopLeft.setX(0.5 - aRelativeSize.getX());
 176                                 aRelativeTopLeft.setY(0.5 - aRelativeSize.getY());
 177                             }
 178
 179                             // prepare FillGraphicAttribute
 180                             const attribute::FillGraphicAttribute aFillGraphicAttribute(
 181                                 Graphic(getBitmapEx()),
 182                                 basegfx::B2DRange(aRelativeTopLeft, aRelativeTopLeft+ aRelativeSize),
 183                                 true);
 184
 185                             // create ObjectTransform
 186                             const basegfx::B2DHomMatrix aObjectTransform(
 187                                 basegfx::utils::createScaleTranslateB2DHomMatrix(
 188                                     getLocalObjectRange().getRange(),
 189                                     getLocalObjectRange().getMinimum()));
 190
 191                             // create FillBitmapPrimitive
 192                             const drawinglayer::primitive2d::Primitive2DReference xFillBitmap(
 193                                 new drawinglayer::primitive2d::FillGraphicPrimitive2D(
 194                                     aObjectTransform,
 195                                     aFillGraphicAttribute));
 196                             aRetval = xFillBitmap;
 197
 198                             // always embed tiled fill to clipping
 199                             bNeedsClipping = true;
 200                         }
 201
 202                         if(bNeedsClipping)
 203                         {
 204                             // embed to clipping; this is necessary for tiled fills
 205                             const basegfx::B2DPolyPolygon aPolyPolygon(
 206                                 basegfx::utils::createPolygonFromRect(getLocalObjectRange()));
 207                             const drawinglayer::primitive2d::Primitive2DReference xClippedFill(
 208                                 new drawinglayer::primitive2d::MaskPrimitive2D(
 209                                     aPolyPolygon,
 210                                     { aRetval }));
 211                             aRetval = xClippedFill;
 212                         }
 213                     }
 214                 }
 215             }
 216
 217             if (aRetval.is())
 218                 rContainer.push_back(aRetval);
 219         }
 220
 221         WallpaperBitmapPrimitive2D::WallpaperBitmapPrimitive2D(
 222             const basegfx::B2DRange& rObjectRange,
 223             const BitmapEx& rBitmapEx,
 224             WallpaperStyle eWallpaperStyle)
 225         :   ViewTransformationDependentPrimitive2D(),
 226             maObjectRange(rObjectRange),
 227             maBitmapEx(rBitmapEx),
 228             meWallpaperStyle(eWallpaperStyle)
 229         {
 230         }
 231
 232         bool WallpaperBitmapPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
 233         {
 234             if(ViewTransformationDependentPrimitive2D::operator==(rPrimitive))
 235             {
 236                 const WallpaperBitmapPrimitive2D& rCompare = static_cast<const WallpaperBitmapPrimitive2D&>(rPrimitive);
 237
 238                 return (getLocalObjectRange() == rCompare.getLocalObjectRange()
 239                     && getBitmapEx() == rCompare.getBitmapEx()
 240                     && getWallpaperStyle() == rCompare.getWallpaperStyle());
 241             }
 242
 243             return false;
 244         }
 245
 246         basegfx::B2DRange WallpaperBitmapPrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation*/) const
 247         {
 248             return getLocalObjectRange();
 249         }
 250
 251         // provide unique ID
 252         ImplPrimitive2DIDBlock(WallpaperBitmapPrimitive2D, PRIMITIVE2D_ID_WALLPAPERBITMAPPRIMITIVE2D)
 253     } // end of namespace primitive2d
 254 } // end of namespace drawinglayer
 255
 256 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */