sdext/source/presenter/PresenterCanvasHelper.cxx

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  31
  32 // MARKER(update_precomp.py): autogen include statement, do not remove
  33 #include "precompiled_sdext.hxx"
  34
  35 #include "PresenterCanvasHelper.hxx"
  36
  37 #include "PresenterController.hxx"
  38 #include "PresenterGeometryHelper.hxx"
  39 #include <com/sun/star/rendering/CompositeOperation.hpp>
  40 #include <com/sun/star/rendering/TextDirection.hpp>
  41 #include <com/sun/star/rendering/TexturingMode.hpp>
  42
  43 using namespace ::com::sun::star;
  44 using namespace ::com::sun::star::uno;
  45
  46 namespace sdext { namespace presenter {
  47
  48 PresenterCanvasHelper::PresenterCanvasHelper (void)
  49     : maDefaultViewState(
  50         geometry::AffineMatrix2D(1,0,0, 0,1,0),
  51         NULL),
  52       maDefaultRenderState(
  53           geometry::AffineMatrix2D(1,0,0, 0,1,0),
  54           NULL,
  55           Sequence<double>(4),
  56           rendering::CompositeOperation::SOURCE)
  57 {
  58 }
  59
  60
  61
  62
  63 PresenterCanvasHelper::~PresenterCanvasHelper (void)
  64 {
  65 }
  66
  67
  68
  69
  70 void PresenterCanvasHelper::Paint (
  71     const SharedBitmapDescriptor& rpBitmap,
  72     const css::uno::Reference<css::rendering::XCanvas>& rxCanvas,
  73     const css::awt::Rectangle& rRepaintBox,
  74     const css::awt::Rectangle& rOuterBoundingBox,
  75     const css::awt::Rectangle& rContentBoundingBox) const
  76 {
  77     PaintRectangle(rpBitmap,rxCanvas,rRepaintBox,rOuterBoundingBox,rContentBoundingBox,
  78         maDefaultViewState, maDefaultRenderState);
  79 }
  80
  81
  82
  83
  84 void PresenterCanvasHelper::PaintRectangle (
  85     const SharedBitmapDescriptor& rpBitmap,
  86     const css::uno::Reference<css::rendering::XCanvas>& rxCanvas,
  87     const css::awt::Rectangle& rRepaintBox,
  88     const css::awt::Rectangle& rOuterBoundingBox,
  89     const css::awt::Rectangle& rContentBoundingBox,
  90     const css::rendering::ViewState& rDefaultViewState,
  91     const css::rendering::RenderState& rDefaultRenderState)
  92 {
  93     if (rpBitmap.get() == NULL)
  94         return;
  95
  96     if ( ! rxCanvas.is() || ! rxCanvas->getDevice().is())
  97         return;
  98
  99     // Create a clip polypolygon that has the content box as hole.
 100     ::std::vector<awt::Rectangle> aRectangles;
 101     aRectangles.reserve(2);
 102     aRectangles.push_back(
 103         PresenterGeometryHelper::Intersection(rRepaintBox, rOuterBoundingBox));
 104     if (rContentBoundingBox.Width > 0 && rContentBoundingBox.Height > 0)
 105         aRectangles.push_back(
 106             PresenterGeometryHelper::Intersection(rRepaintBox, rContentBoundingBox));
 107     Reference<rendering::XPolyPolygon2D> xPolyPolygon (
 108         PresenterGeometryHelper::CreatePolygon(
 109             aRectangles,
 110             rxCanvas->getDevice()));
 111     if ( ! xPolyPolygon.is())
 112         return;
 113     xPolyPolygon->setFillRule(rendering::FillRule_EVEN_ODD);
 114
 115     if (rpBitmap->GetNormalBitmap().is())
 116     {
 117         if (rpBitmap->meHorizontalTexturingMode == PresenterBitmapDescriptor::Repeat
 118             || rpBitmap->meVerticalTexturingMode == PresenterBitmapDescriptor::Repeat)
 119         {
 120             PaintTiledBitmap(
 121                 Reference<rendering::XBitmap>(rpBitmap->GetNormalBitmap(), UNO_QUERY),
 122                 rxCanvas,
 123                 rRepaintBox,
 124                 xPolyPolygon,
 125                 rContentBoundingBox,
 126                 rDefaultViewState,
 127                 rDefaultRenderState);
 128         }
 129         else
 130         {
 131             PaintBitmap(
 132                 Reference<rendering::XBitmap>(rpBitmap->GetNormalBitmap(), UNO_QUERY),
 133                 awt::Point(rOuterBoundingBox.X, rOuterBoundingBox.Y),
 134                 rxCanvas,
 135                 rRepaintBox,
 136                 xPolyPolygon,
 137                 rDefaultViewState,
 138                 rDefaultRenderState);
 139         }
 140     }
 141     else
 142     {
 143         PaintColor(
 144             rpBitmap->maReplacementColor,
 145             rxCanvas,
 146             rRepaintBox,
 147             xPolyPolygon,
 148             rDefaultViewState,
 149             rDefaultRenderState);
 150     }
 151 }
 152
 153
 154
 155
 156 void PresenterCanvasHelper::PaintTiledBitmap (
 157     const css::uno::Reference<css::rendering::XBitmap>& rxTexture,
 158     const css::uno::Reference<css::rendering::XCanvas>& rxCanvas,
 159     const css::awt::Rectangle& rRepaintBox,
 160     const css::uno::Reference<css::rendering::XPolyPolygon2D>& rxPolygon,
 161     const css::awt::Rectangle& rHole,
 162     const css::rendering::ViewState& rDefaultViewState,
 163     const css::rendering::RenderState& rDefaultRenderState)
 164 {
 165     if ( ! rxCanvas.is() || ! rxCanvas->getDevice().is())
 166         return;
 167
 168     if ( ! rxTexture.is())
 169         return;
 170
 171     if ( ! rxPolygon.is())
 172         return;
 173
 174     rendering::ViewState aViewState (rDefaultViewState);
 175     aViewState.Clip = rxPolygon;
 176
 177     // Create a local render state at which the location of the bitmap is
 178     // set.
 179     rendering::RenderState aRenderState (rDefaultRenderState);
 180
 181
 182     // Tile the bitmap over the repaint box.
 183     const geometry::IntegerSize2D aBitmapSize (rxTexture->getSize());
 184     const sal_Int32 nLeft = (rRepaintBox.X / aBitmapSize.Width) * aBitmapSize.Width;
 185     const sal_Int32 nTop = (rRepaintBox.Y / aBitmapSize.Height) * aBitmapSize.Height;
 186     const sal_Int32 nRight = ((rRepaintBox.X + rRepaintBox.Width - 1 + aBitmapSize.Width - 1)
 187         / aBitmapSize.Width) * aBitmapSize.Width;
 188     const sal_Int32 nBottom = ((rRepaintBox.Y + rRepaintBox.Height - 1 + aBitmapSize.Height - 1)
 189         / aBitmapSize.Height) * aBitmapSize.Height;
 190
 191     for (sal_Int32 nY=nTop; nY<=nBottom; nY+=aBitmapSize.Height)
 192         for (sal_Int32 nX=nLeft; nX<=nRight; nX+=aBitmapSize.Width)
 193         {
 194             if (PresenterGeometryHelper::IsInside(
 195                 awt::Rectangle(nX,nY,aBitmapSize.Width,aBitmapSize.Height),
 196                 rHole))
 197             {
 198                 continue;
 199             }
 200             aRenderState.AffineTransform.m02 = nX;
 201             aRenderState.AffineTransform.m12 = nY;
 202             rxCanvas->drawBitmap(
 203                 rxTexture,
 204                 aViewState,
 205                 aRenderState);
 206         }
 207 }
 208
 209
 210
 211
 212 void PresenterCanvasHelper::PaintBitmap (
 213     const css::uno::Reference<css::rendering::XBitmap>& rxBitmap,
 214     const awt::Point& rLocation,
 215     const css::uno::Reference<css::rendering::XCanvas>& rxCanvas,
 216     const css::awt::Rectangle& rRepaintBox,
 217     const css::uno::Reference<css::rendering::XPolyPolygon2D>& rxPolygon,
 218     const css::rendering::ViewState& rDefaultViewState,
 219     const css::rendering::RenderState& rDefaultRenderState)
 220 {
 221     if ( ! rxCanvas.is() || ! rxCanvas->getDevice().is())
 222         return;
 223
 224     if ( ! rxBitmap.is())
 225         return;
 226
 227     if ( ! rxPolygon.is())
 228         return;
 229
 230     // Set the repaint box as clip rectangle at the view state.
 231     rendering::ViewState aViewState (rDefaultViewState);
 232     aViewState.Clip = PresenterGeometryHelper::CreatePolygon(rRepaintBox, rxCanvas->getDevice());
 233
 234
 235     // Setup the rendering state so that the bitmap is painted top left in
 236     // the polygon bounding box.
 237     rendering::RenderState aRenderState (rDefaultRenderState);
 238     aRenderState.AffineTransform = geometry::AffineMatrix2D(1,0, rLocation.X, 0,1,rLocation.Y);
 239     aRenderState.Clip = rxPolygon;
 240
 241     rxCanvas->drawBitmap(
 242         rxBitmap,
 243         aViewState,
 244         aRenderState);
 245 }
 246
 247
 248
 249
 250 void PresenterCanvasHelper::PaintColor (
 251     const css::util::Color nColor,
 252     const css::uno::Reference<css::rendering::XCanvas>& rxCanvas,
 253     const css::awt::Rectangle& rRepaintBox,
 254     const css::uno::Reference<css::rendering::XPolyPolygon2D>& rxPolygon,
 255     const css::rendering::ViewState& rDefaultViewState,
 256     const css::rendering::RenderState& rDefaultRenderState)
 257 {
 258     if ( ! rxCanvas.is() || ! rxCanvas->getDevice().is())
 259         return;
 260
 261     if ( ! rxPolygon.is())
 262         return;
 263
 264     // Set the repaint box as clip rectangle at the view state.
 265     rendering::ViewState aViewState (rDefaultViewState);
 266     aViewState.Clip = PresenterGeometryHelper::CreatePolygon(rRepaintBox, rxCanvas->getDevice());
 267
 268
 269     // Setup the rendering state to use the given color.
 270     rendering::RenderState aRenderState (rDefaultRenderState);
 271     SetDeviceColor(aRenderState, nColor);
 272
 273     rxCanvas->fillPolyPolygon(
 274         rxPolygon,
 275         aViewState,
 276         aRenderState);
 277 }
 278
 279
 280
 281
 282 void PresenterCanvasHelper::SetDeviceColor(
 283     rendering::RenderState& rRenderState,
 284     const util::Color aColor)
 285 {
 286     // Other component counts then 4 (RGBA) are not accepted (anymore).
 287
 288     OSL_ASSERT(rRenderState.DeviceColor.getLength() == 4);
 289     if (rRenderState.DeviceColor.getLength() == 4)
 290     {
 291         rRenderState.DeviceColor[0] = ((aColor >> 16) & 0x0ff) / 255.0;
 292         rRenderState.DeviceColor[1] = ((aColor >> 8) & 0x0ff) / 255.0;
 293         rRenderState.DeviceColor[2] = ((aColor >> 0) & 0x0ff) / 255.0;
 294         rRenderState.DeviceColor[3] = 1.0 - ((aColor >> 24) & 0x0ff) / 255.0;
 295     }
 296 }
 297
 298
 299
 300
 301 css::geometry::RealRectangle2D PresenterCanvasHelper::GetTextBoundingBox (
 302     const css::uno::Reference<css::rendering::XCanvasFont>& rxFont,
 303     const ::rtl::OUString& rsText,
 304     const sal_Int8 nTextDirection)
 305 {
 306     if (rxFont.is() && rsText.getLength() > 0)
 307     {
 308         rendering::StringContext aContext (rsText, 0, rsText.getLength());
 309         Reference<rendering::XTextLayout> xLayout (
 310             rxFont->createTextLayout(aContext, nTextDirection, 0));
 311         return xLayout->queryTextBounds();
 312     }
 313     else
 314     {
 315         return geometry::RealRectangle2D(0,0,0,0);
 316     }
 317 }
 318
 319
 320
 321
 322 css::geometry::RealSize2D PresenterCanvasHelper::GetTextSize (
 323     const css::uno::Reference<css::rendering::XCanvasFont>& rxFont,
 324     const ::rtl::OUString& rsText,
 325     const sal_Int8 nTextDirection)
 326 {
 327     const geometry::RealRectangle2D aTextBBox (GetTextBoundingBox(rxFont, rsText, nTextDirection));
 328     return css::geometry::RealSize2D(aTextBBox.X2 - aTextBBox.X1, aTextBBox.Y2 - aTextBBox.Y1);
 329 }
 330
 331
 332 } } // end of namespace sdext::presenter