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:
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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 <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         Primitive2DReference WallpaperBitmapPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const
  35         {
  36
  37             if(getLocalObjectRange().isEmpty() || getBitmapEx().IsEmpty())
  38                 return nullptr;
  39
  40             Primitive2DReference aRetval;
  41
  42             // get bitmap PIXEL size
  43             const Size& rPixelSize = getBitmapEx().GetSizePixel();
  44
  45             if(rPixelSize.Width() <= 0 || rPixelSize.Height() <= 0)
  46                 return nullptr;
  47
  48             if(WallpaperStyle::Scale == getWallpaperStyle())
  49             {
  50                 // shortcut for scale; use simple BitmapPrimitive2D
  51                 basegfx::B2DHomMatrix aObjectTransform;
  52
  53                 aObjectTransform.set(0, 0, getLocalObjectRange().getWidth());
  54                 aObjectTransform.set(1, 1, getLocalObjectRange().getHeight());
  55                 aObjectTransform.set(0, 2, getLocalObjectRange().getMinX());
  56                 aObjectTransform.set(1, 2, getLocalObjectRange().getMinY());
  57
  58                 aRetval.set(
  59                     new BitmapPrimitive2D(
  60                         getBitmapEx(),
  61                         aObjectTransform));
  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                     aRetval.set(
 156                         new BitmapPrimitive2D(
 157                             getBitmapEx(),
 158                             aObjectTransform));
 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                     aRetval.set(
 192                         new drawinglayer::primitive2d::FillGraphicPrimitive2D(
 193                             aObjectTransform,
 194                             aFillGraphicAttribute));
 195
 196                     // always embed tiled fill to clipping
 197                     bNeedsClipping = true;
 198                 }
 199
 200                 if(bNeedsClipping)
 201                 {
 202                     // embed to clipping; this is necessary for tiled fills
 203                     basegfx::B2DPolyPolygon aPolyPolygon(
 204                         basegfx::utils::createPolygonFromRect(getLocalObjectRange()));
 205                     const drawinglayer::primitive2d::Primitive2DReference xClippedFill(
 206                         new drawinglayer::primitive2d::MaskPrimitive2D(
 207                             std::move(aPolyPolygon),
 208                             { aRetval }));
 209                     aRetval = xClippedFill;
 210                 }
 211             }
 212
 213             return aRetval;
 214         }
 215
 216         WallpaperBitmapPrimitive2D::WallpaperBitmapPrimitive2D(
 217             const basegfx::B2DRange& rObjectRange,
 218             const BitmapEx& rBitmapEx,
 219             WallpaperStyle eWallpaperStyle)
 220         :   maObjectRange(rObjectRange),
 221             maBitmapEx(rBitmapEx),
 222             meWallpaperStyle(eWallpaperStyle)
 223         {
 224         }
 225
 226         bool WallpaperBitmapPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
 227         {
 228             if(ViewTransformationDependentPrimitive2D::operator==(rPrimitive))
 229             {
 230                 const WallpaperBitmapPrimitive2D& rCompare = static_cast<const WallpaperBitmapPrimitive2D&>(rPrimitive);
 231
 232                 return (getLocalObjectRange() == rCompare.getLocalObjectRange()
 233                     && getBitmapEx() == rCompare.getBitmapEx()
 234                     && getWallpaperStyle() == rCompare.getWallpaperStyle());
 235             }
 236
 237             return false;
 238         }
 239
 240         basegfx::B2DRange WallpaperBitmapPrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation*/) const
 241         {
 242             return getLocalObjectRange();
 243         }
 244
 245         // provide unique ID
 246         sal_uInt32 WallpaperBitmapPrimitive2D::getPrimitive2DID() const
 247         {
 248             return PRIMITIVE2D_ID_WALLPAPERBITMAPPRIMITIVE2D;
 249         }
 250
 251 } // end of namespace
 252
 253 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */