INTEGRATION: CWS cairocanvas (1.1.2); FILE ADDED

2006/01/11 12:29:04 radekdoulik 1.1.2.3: Issue number:  #51657
Submitted by:  radekdoulik
Reviewed by:   radekdoulik
optimizes resizes and adds fallback to rgb surfaces for fully opaque bitmap
draws on sprites
2005/12/14 15:38:07 radekdoulik 1.1.2.2: Issue number:  #51657
Submitted by:  radekdoulik
Reviewed by:   radekdoulik
use vcl to draw text to virtual device created from our pixmaps
2005/11/08 21:24:26 radekdoulik 1.1.2.1: Issue number:  #51657
Submitted by:  radekdoulik
Reviewed by:   radekdoulik
added new files needed for canvas02 cairo backend

1 files changed, 204 insertions, 0 deletions

diff --git a/canvas/source/cairo/cairo_spritehelper.cxx b/canvas/source/cairo/cairo_spritehelper.cxx
new file mode 100644
index 000000000000..41a2d3517afb
--- /dev/null
+++ b/canvas/source/cairo/cairo_spritehelper.cxx
@@ -0,0 +1,204 @@
+/*************************************************************************
+ *
+ *  OpenOffice.org - a multi-platform office productivity suite
+ *
+ *  $RCSfile: cairo_spritehelper.cxx,v $
+ *
+ *  $Revision: 1.2 $
+ *
+ *  last change: $Author: kz $ $Date: 2006-02-28 10:38:50 $
+ *
+ *  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
+ *
+ ************************************************************************/
+
+#include <canvas/debug.hxx>
+#include <canvas/verbosetrace.hxx>
+
+#include <rtl/logfile.hxx>
+#include <rtl/math.hxx>
+
+#include <canvas/canvastools.hxx>
+
+#include <basegfx/matrix/b2dhommatrix.hxx>
+#include <basegfx/point/b2dpoint.hxx>
+#include <basegfx/tools/canvastools.hxx>
+#include <basegfx/numeric/ftools.hxx>
+#include <basegfx/polygon/b2dpolypolygontools.hxx>
+#include <basegfx/polygon/b2dpolygontools.hxx>
+#include <basegfx/polygon/b2dpolypolygonrasterconverter.hxx>
+#include <basegfx/polygon/b2dpolygontriangulator.hxx>
+#include <basegfx/polygon/b2dpolygoncutandtouch.hxx>
+
+#include "cairo_canvascustomsprite.hxx"
+#include "cairo_spritehelper.hxx"
+
+#include <memory>
+
+
+using namespace ::cairo;
+using namespace ::com::sun::star;
+
+namespace cairocanvas
+{
+    SpriteHelper::SpriteHelper() :
+        mpSpriteCanvas(),
+        mbTextureDirty( true ),
+    mpBufferSurface( NULL )
+    {
+    }
+
+    void SpriteHelper::init( const geometry::RealSize2D&    rSpriteSize,
+                             const SpriteCanvasRef&         rSpriteCanvas)
+    {
+        ENSURE_AND_THROW( rSpriteCanvas.get(),
+                          "SpriteHelper::init(): Invalid device, sprite canvas or surface" );
+
+        mpSpriteCanvas     = rSpriteCanvas;
+        mbTextureDirty     = true;
+
+        // also init base class
+        CanvasCustomSpriteHelper::init( rSpriteSize,
+                                        rSpriteCanvas.get() );
+    }
+
+    void SpriteHelper::setSurface( Surface* pBufferSurface )
+    {
+        if( mpBufferSurface )
+            mpBufferSurface->Unref();
+
+        mpBufferSurface = pBufferSurface;
+        mpBufferSurface->Ref();
+    }
+
+    void SpriteHelper::disposing()
+    {
+        mpSpriteCanvas.clear();
+
+        // forward to parent
+        CanvasCustomSpriteHelper::disposing();
+
+        if( mpBufferSurface ) {
+            mpBufferSurface->Unref();
+            mpBufferSurface = NULL;
+        }
+    }
+
+    void SpriteHelper::redraw( Cairo*                     pCairo,
+                               const ::basegfx::B2DPoint& rPos,
+                               bool&                      io_bSurfacesDirty,
+                               bool                       bBufferedUpdate ) const
+    {
+    #ifdef CAIRO_CANVAS_PERF_TRACE
+    struct timespec aTimer;
+    mxDevice->startPerfTrace( &aTimer );
+        #endif
+
+        const double fAlpha( getAlpha() );
+    const ::basegfx::B2DHomMatrix aTransform( getTransformation() );
+
+    if( isActive() && !::basegfx::fTools::equalZero( fAlpha ) ) {
+        OSL_TRACE ("CanvasCustomSprite::redraw called\n");
+        if( pCairo ) {
+        basegfx::B2DVector aSize = getSizePixel();
+        cairo_save( pCairo );
+
+        double fX, fY;
+
+        fX = rPos.getX();
+        fY = rPos.getY();
+
+         if( !aTransform.isIdentity() ) {
+             cairo_matrix_t aMatrix, aInverseMatrix;
+             cairo_matrix_init( &aMatrix,
+                        aTransform.get( 0, 0 ), aTransform.get( 1, 0 ), aTransform.get( 0, 1 ),
+                        aTransform.get( 1, 1 ), aTransform.get( 0, 2 ), aTransform.get( 1, 2 ) );
+
+             aMatrix.x0 = round( aMatrix.x0 );
+             aMatrix.y0 = round( aMatrix.y0 );
+
+            cairo_matrix_init( &aInverseMatrix, aMatrix.xx, aMatrix.yx, aMatrix.xy, aMatrix.yy, aMatrix.x0, aMatrix.y0 );
+            cairo_matrix_invert( &aInverseMatrix );
+            cairo_matrix_transform_distance( &aInverseMatrix, &fX, &fY );
+
+             cairo_set_matrix( pCairo, &aMatrix );
+         }
+
+         fX = round( fX );
+         fY = round( fY );
+
+        cairo_matrix_t aOrigMatrix;
+        cairo_get_matrix( pCairo, &aOrigMatrix );
+        cairo_translate( pCairo, fX, fY );
+
+                if( getClip().is() )
+                {
+                    ::basegfx::B2DPolyPolygon aClipPoly(
+                        ::canvas::tools::polyPolygonFromXPolyPolygon2D(
+                            getClip() ));
+
+            //cairo_reset_clip( pCairo );
+            drawPolyPolygonImplementation( aClipPoly, Clip, pCairo );
+        }
+
+        OSL_TRACE ("aSize %f x %f\n", aSize.getX(), aSize.getY() );
+        cairo_rectangle( pCairo, 0, 0, floor( aSize.getX() ), floor( aSize.getY() ) );
+        cairo_clip( pCairo );
+        cairo_set_matrix( pCairo, &aOrigMatrix );
+
+        if( isContentFullyOpaque() )
+             cairo_set_operator( pCairo, CAIRO_OPERATOR_SOURCE );
+        cairo_set_source_surface( pCairo, mpBufferSurface->mpSurface, fX, fY );
+                if( ::rtl::math::approxEqual( fAlpha, 1.0 ) )
+            cairo_paint( pCairo );
+        else
+            cairo_paint_with_alpha( pCairo, fAlpha );
+
+        cairo_restore( pCairo );
+        }
+    }
+
+    #ifdef CAIRO_CANVAS_PERF_TRACE
+    mxDevice->stopPerfTrace( &aTimer, "sprite redraw" );
+        #endif
+    }
+
+    void SpriteHelper::clearSurface()
+    {
+    Cairo* pCairo = mpBufferSurface->getCairo();
+    const ::basegfx::B2DVector& rSize( getSizePixel() );
+
+    cairo_set_operator( pCairo, CAIRO_OPERATOR_SOURCE );
+    cairo_set_source_rgba( pCairo, 0, 0, 0, 0 );
+    cairo_rectangle( pCairo, 0, 0, rSize.getX(), rSize.getY() );
+    cairo_fill( pCairo );
+
+    cairo_destroy( pCairo );
+    }
+
+    ::basegfx::B2DPolyPolygon SpriteHelper::polyPolygonFromXPolyPolygon2D( uno::Reference< rendering::XPolyPolygon2D >& xPoly ) const
+    {
+        return ::canvas::tools::polyPolygonFromXPolyPolygon2D( xPoly );
+    }
+}