drawinglayer/source/primitive2d/wallpaperprimitive2d.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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   9  * This file incorporates work covered by the following license notice:
  10  *
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  13  *   with this work for additional information regarding copyright
  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 <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 #include <toolkit/helper/vclunohelper.hxx>
  30
  31
  32 namespace drawinglayer::primitive2d
  33 {
  34         void WallpaperBitmapPrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& /*rViewInformation*/) const
  35         {
  36             Primitive2DReference aRetval;
  37
  38             if(!getLocalObjectRange().isEmpty() && !getBitmapEx().IsEmpty())
  39             {
  40                 // get bitmap PIXEL size
  41                 const Size& rPixelSize = getBitmapEx().GetSizePixel();
  42
  43                 if(rPixelSize.Width() > 0 && rPixelSize.Height() > 0)
  44                 {
  45                     if(WallpaperStyle::Scale == getWallpaperStyle())
  46                     {
  47                         // shortcut for scale; use simple BitmapPrimitive2D
  48                         basegfx::B2DHomMatrix aObjectTransform;
  49
  50                         aObjectTransform.set(0, 0, getLocalObjectRange().getWidth());
  51                         aObjectTransform.set(1, 1, getLocalObjectRange().getHeight());
  52                         aObjectTransform.set(0, 2, getLocalObjectRange().getMinX());
  53                         aObjectTransform.set(1, 2, getLocalObjectRange().getMinY());
  54
  55                         Primitive2DReference xReference(
  56                             new BitmapPrimitive2D(
  57                                 getBitmapEx(),
  58                                 aObjectTransform));
  59
  60                         aRetval = xReference;
  61                     }
  62                     else
  63                     {
  64                         // transform to logic size
  65                         basegfx::B2DHomMatrix aInverseViewTransformation(getViewTransformation());
  66                         aInverseViewTransformation.invert();
  67                         basegfx::B2DVector aLogicSize(rPixelSize.Width(), rPixelSize.Height());
  68                         aLogicSize = aInverseViewTransformation * aLogicSize;
  69
  70                         // apply layout
  71                         basegfx::B2DPoint aTargetTopLeft(getLocalObjectRange().getMinimum());
  72                         bool bUseTargetTopLeft(true);
  73                         bool bNeedsClipping(false);
  74
  75                         switch(getWallpaperStyle())
  76                         {
  77                             default: //case WallpaperStyle::Tile :, also WallpaperStyle::NONE and WallpaperStyle::ApplicationGradient
  78                             {
  79                                 bUseTargetTopLeft = false;
  80                                 break;
  81                             }
  82                             case WallpaperStyle::Scale :
  83                             {
  84                                 // handled by shortcut above
  85                                 break;
  86                             }
  87                             case WallpaperStyle::TopLeft :
  88                             {
  89                                 // nothing to do
  90                                 break;
  91                             }
  92                             case WallpaperStyle::Top :
  93                             {
  94                                 const basegfx::B2DPoint aCenter(getLocalObjectRange().getCenter());
  95                                 aTargetTopLeft.setX(aCenter.getX() - (aLogicSize.getX() * 0.5));
  96                                 break;
  97                             }
  98                             case WallpaperStyle::TopRight :
  99                             {
 100                                 aTargetTopLeft.setX(getLocalObjectRange().getMaxX() - aLogicSize.getX());
 101                                 break;
 102                             }
 103                             case WallpaperStyle::Left :
 104                             {
 105                                 const basegfx::B2DPoint aCenter(getLocalObjectRange().getCenter());
 106                                 aTargetTopLeft.setY(aCenter.getY() - (aLogicSize.getY() * 0.5));
 107                                 break;
 108                             }
 109                             case WallpaperStyle::Center :
 110                             {
 111                                 const basegfx::B2DPoint aCenter(getLocalObjectRange().getCenter());
 112                                 aTargetTopLeft = aCenter - (aLogicSize * 0.5);
 113                                 break;
 114                             }
 115                             case WallpaperStyle::Right :
 116                             {
 117                                 const basegfx::B2DPoint aCenter(getLocalObjectRange().getCenter());
 118                                 aTargetTopLeft.setX(getLocalObjectRange().getMaxX() - aLogicSize.getX());
 119                                 aTargetTopLeft.setY(aCenter.getY() - (aLogicSize.getY() * 0.5));
 120                                 break;
 121                             }
 122                             case WallpaperStyle::BottomLeft :
 123                             {
 124                                 aTargetTopLeft.setY(getLocalObjectRange().getMaxY() - aLogicSize.getY());
 125                                 break;
 126                             }
 127                             case WallpaperStyle::Bottom :
 128                             {
 129                                 const basegfx::B2DPoint aCenter(getLocalObjectRange().getCenter());
 130                                 aTargetTopLeft.setX(aCenter.getX() - (aLogicSize.getX() * 0.5));
 131                                 aTargetTopLeft.setY(getLocalObjectRange().getMaxY() - aLogicSize.getY());
 132                                 break;
 133                             }
 134                             case WallpaperStyle::BottomRight :
 135                             {
 136                                 aTargetTopLeft = getLocalObjectRange().getMaximum() - aLogicSize;
 137                                 break;
 138                             }
 139                         }
 140
 141                         if(bUseTargetTopLeft)
 142                         {
 143                             // fill target range
 144                             const basegfx::B2DRange aTargetRange(aTargetTopLeft, aTargetTopLeft + aLogicSize);
 145
 146                             // create aligned, single BitmapPrimitive2D
 147                             basegfx::B2DHomMatrix aObjectTransform;
 148
 149                             aObjectTransform.set(0, 0, aTargetRange.getWidth());
 150                             aObjectTransform.set(1, 1, aTargetRange.getHeight());
 151                             aObjectTransform.set(0, 2, aTargetRange.getMinX());
 152                             aObjectTransform.set(1, 2, aTargetRange.getMinY());
 153
 154                             Primitive2DReference xReference(
 155                                 new BitmapPrimitive2D(
 156                                     getBitmapEx(),
 157                                     aObjectTransform));
 158                             aRetval = xReference;
 159
 160                             // clip when not completely inside object range
 161                             bNeedsClipping = !getLocalObjectRange().isInside(aTargetRange);
 162                         }
 163                         else
 164                         {
 165                             // WallpaperStyle::Tile, WallpaperStyle::NONE, WallpaperStyle::ApplicationGradient
 166                             // convert to relative positions
 167                             const basegfx::B2DVector aRelativeSize(
 168                                 aLogicSize.getX() / (getLocalObjectRange().getWidth() ? getLocalObjectRange().getWidth() : 1.0),
 169                                 aLogicSize.getY() / (getLocalObjectRange().getHeight() ? getLocalObjectRange().getHeight() : 1.0));
 170                             basegfx::B2DPoint aRelativeTopLeft(0.0, 0.0);
 171
 172                             if(WallpaperStyle::Tile != getWallpaperStyle())
 173                             {
 174                                 aRelativeTopLeft.setX(0.5 - aRelativeSize.getX());
 175                                 aRelativeTopLeft.setY(0.5 - aRelativeSize.getY());
 176                             }
 177
 178                             // prepare FillGraphicAttribute
 179                             const attribute::FillGraphicAttribute aFillGraphicAttribute(
 180                                 Graphic(getBitmapEx()),
 181                                 basegfx::B2DRange(aRelativeTopLeft, aRelativeTopLeft+ aRelativeSize),
 182                                 true);
 183
 184                             // create ObjectTransform
 185                             const basegfx::B2DHomMatrix aObjectTransform(
 186                                 basegfx::utils::createScaleTranslateB2DHomMatrix(
 187                                     getLocalObjectRange().getRange(),
 188                                     getLocalObjectRange().getMinimum()));
 189
 190                             // create FillBitmapPrimitive
 191                             const drawinglayer::primitive2d::Primitive2DReference xFillBitmap(
 192                                 new drawinglayer::primitive2d::FillGraphicPrimitive2D(
 193                                     aObjectTransform,
 194                                     aFillGraphicAttribute));
 195                             aRetval = xFillBitmap;
 196
 197                             // always embed tiled fill to clipping
 198                             bNeedsClipping = true;
 199                         }
 200
 201                         if(bNeedsClipping)
 202                         {
 203                             // embed to clipping; this is necessary for tiled fills
 204                             basegfx::B2DPolyPolygon aPolyPolygon(
 205                                 basegfx::utils::createPolygonFromRect(getLocalObjectRange()));
 206                             const drawinglayer::primitive2d::Primitive2DReference xClippedFill(
 207                                 new drawinglayer::primitive2d::MaskPrimitive2D(
 208                                     std::move(aPolyPolygon),
 209                                     { aRetval }));
 210                             aRetval = xClippedFill;
 211                         }
 212                     }
 213                 }
 214             }
 215
 216             if (aRetval.is())
 217                 rContainer.push_back(aRetval);
 218         }
 219
 220         WallpaperBitmapPrimitive2D::WallpaperBitmapPrimitive2D(
 221             const basegfx::B2DRange& rObjectRange,
 222             const BitmapEx& rBitmapEx,
 223             WallpaperStyle eWallpaperStyle)
 224         :   maObjectRange(rObjectRange),
 225             maBitmapEx(rBitmapEx),
 226             meWallpaperStyle(eWallpaperStyle)
 227         {
 228         }
 229
 230         bool WallpaperBitmapPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
 231         {
 232             if(ViewTransformationDependentPrimitive2D::operator==(rPrimitive))
 233             {
 234                 const WallpaperBitmapPrimitive2D& rCompare = static_cast<const WallpaperBitmapPrimitive2D&>(rPrimitive);
 235
 236                 return (getLocalObjectRange() == rCompare.getLocalObjectRange()
 237                     && getBitmapEx() == rCompare.getBitmapEx()
 238                     && getWallpaperStyle() == rCompare.getWallpaperStyle());
 239             }
 240
 241             return false;
 242         }
 243
 244         basegfx::B2DRange WallpaperBitmapPrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation*/) const
 245         {
 246             return getLocalObjectRange();
 247         }
 248
 249         // provide unique ID
 250         sal_uInt32 WallpaperBitmapPrimitive2D::getPrimitive2DID() const
 251         {
 252             return PRIMITIVE2D_ID_WALLPAPERBITMAPPRIMITIVE2D;
 253         }
 254
 255 } // end of namespace
 256
 257 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */