#i39532#

1 files changed, 154 insertions, 0 deletions

diff --git a/drawinglayer/source/processor2d/vclhelperbufferdevice.cxx b/drawinglayer/source/processor2d/vclhelperbufferdevice.cxx
new file mode 100644
index 000000000000..c1b813a1e522
--- /dev/null
+++ b/drawinglayer/source/processor2d/vclhelperbufferdevice.cxx
@@ -0,0 +1,154 @@
+/*************************************************************************
+ *
+ *  OpenOffice.org - a multi-platform office productivity suite
+ *
+ *  $RCSfile: vclhelperbufferdevice.cxx,v $
+ *
+ *  $Revision: 1.1 $
+ *
+ *  last change: $Author: aw $ $Date: 2007-03-06 12:34:16 $
+ *
+ *  The Contents of this file are made available subject to
+ *  the terms of GNU Lesser General Public License Version 2.1.
+ *
+ *
+ *    GNU Lesser General Public License Version 2.1
+ *    =============================================
+ *    Copyright 2005 by Sun Microsystems, Inc.
+ *    901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *    This library is free software; you can redistribute it and/or
+ *    modify it under the terms of the GNU Lesser General Public
+ *    License version 2.1, as published by the Free Software Foundation.
+ *
+ *    This library is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *    Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public
+ *    License along with this library; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *    MA  02111-1307  USA
+ *
+ ************************************************************************/
+
+#ifndef INCLUDED_DRAWINGLAYER_PROCESSOR2D_VCLHELPERBUFFERDEVICE_HXX
+#include <vclhelperbufferdevice.hxx>
+#endif
+
+#ifndef _BGFX_RANGE_B2DRANGE_HXX
+#include <basegfx/range/b2drange.hxx>
+#endif
+
+#ifndef _SV_BITMAPEX_HXX
+#include <vcl/bitmapex.hxx>
+#endif
+
+//////////////////////////////////////////////////////////////////////////////
+// support for rendering Bitmap and BitmapEx contents
+
+namespace drawinglayer
+{
+    impBufferDevice::impBufferDevice(
+        OutputDevice& rOutDev,
+        const basegfx::B2DRange& rRange)
+    :   mrOutDev(rOutDev),
+        maContent(rOutDev),
+        mpMask(0L),
+        mpAlpha(0L)
+    {
+        const Rectangle aRectLogic(
+            (sal_Int32)floor(rRange.getMinX()), (sal_Int32)floor(rRange.getMinY()),
+            (sal_Int32)floor(rRange.getMaxX()) + 1L, (sal_Int32)floor(rRange.getMaxY()) + 1L);
+        const Rectangle aRectPixel(rOutDev.LogicToPixel(aRectLogic));
+        const Point aEmptyPoint;
+        maDestPixel = Rectangle(aEmptyPoint, rOutDev.GetOutputSizePixel());
+        maDestPixel.Intersection(aRectPixel);
+
+        if(isVisible())
+        {
+            maContent.SetOutputSizePixel(maDestPixel.GetSize(), false);
+
+            const bool bWasEnabledSrc(rOutDev.IsMapModeEnabled());
+            rOutDev.EnableMapMode(false);
+            maContent.DrawOutDev(aEmptyPoint, maDestPixel.GetSize(), maDestPixel.TopLeft(), maDestPixel.GetSize(), rOutDev);
+            rOutDev.EnableMapMode(bWasEnabledSrc);
+
+            MapMode aNewMapMode(rOutDev.GetMapMode());
+            const Point aLogicTopLeft(rOutDev.PixelToLogic(maDestPixel.TopLeft()));
+            aNewMapMode.SetOrigin(Point(-aLogicTopLeft.X(), -aLogicTopLeft.Y()));
+
+            maContent.SetMapMode(aNewMapMode);
+        }
+    }
+
+    impBufferDevice::~impBufferDevice()
+    {
+        delete mpMask;
+        delete mpAlpha;
+    }
+
+    void impBufferDevice::paint(double fTrans)
+    {
+        const Point aEmptyPoint;
+        const Size aSizePixel(maContent.GetOutputSizePixel());
+        const bool bWasEnabledDst(mrOutDev.IsMapModeEnabled());
+
+        mrOutDev.EnableMapMode(false);
+        maContent.EnableMapMode(false);
+        Bitmap aContent(maContent.GetBitmap(aEmptyPoint, aSizePixel));
+
+        if(mpAlpha)
+        {
+            mpAlpha->EnableMapMode(false);
+            AlphaMask aAlphaMask(mpAlpha->GetBitmap(aEmptyPoint, aSizePixel));
+            mrOutDev.DrawBitmapEx(maDestPixel.TopLeft(), BitmapEx(aContent, aAlphaMask));
+        }
+        else if(mpMask)
+        {
+            mpMask->EnableMapMode(false);
+            Bitmap aMask(mpMask->GetBitmap(aEmptyPoint, aSizePixel));
+            mrOutDev.DrawBitmapEx(maDestPixel.TopLeft(), BitmapEx(aContent, aMask));
+        }
+        else if(0.0 != fTrans)
+        {
+            sal_uInt8 nMaskValue((sal_uInt8)basegfx::fround(fTrans * 255.0));
+            AlphaMask aAlphaMask(aSizePixel, &nMaskValue);
+            mrOutDev.DrawBitmapEx(maDestPixel.TopLeft(), BitmapEx(aContent, aAlphaMask));
+        }
+        else
+        {
+            mrOutDev.DrawBitmap(maDestPixel.TopLeft(), aContent);
+        }
+
+        mrOutDev.EnableMapMode(bWasEnabledDst);
+    }
+
+    VirtualDevice& impBufferDevice::getMask()
+    {
+        if(!mpMask)
+        {
+            mpMask = new VirtualDevice(mrOutDev, 1);
+            mpMask->SetOutputSizePixel(maDestPixel.GetSize(), true);
+            mpMask->SetMapMode(maContent.GetMapMode());
+        }
+
+        return *mpMask;
+    }
+
+    VirtualDevice& impBufferDevice::getAlpha()
+    {
+        if(!mpAlpha)
+        {
+            mpAlpha = new VirtualDevice();
+            mpAlpha->SetOutputSizePixel(maDestPixel.GetSize(), true);
+            mpAlpha->SetMapMode(maContent.GetMapMode());
+        }
+
+        return *mpAlpha;
+    }
+} // end of namespace drawinglayer
+
+//////////////////////////////////////////////////////////////////////////////
+// eof