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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org 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 version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org. If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#ifndef _DXCANVAS_CANVASHELPER_HXX_
+#define _DXCANVAS_CANVASHELPER_HXX_
+
+#include <com/sun/star/rendering/XCanvas.hpp>
+
+#include <basegfx/vector/b2isize.hxx>
+#include <basegfx/vector/b2dsize.hxx>
+
+#include "dx_graphicsprovider.hxx"
+#include "dx_gdiplususer.hxx"
+#include "dx_impltools.hxx"
+
+#include <boost/utility.hpp>
+
+
+namespace dxcanvas
+{
+ /** Helper class for basic canvas functionality. Also offers
+ optional backbuffer painting, when providing it with a second
+ HDC to render into.
+ */
+ class CanvasHelper : private ::boost::noncopyable
+ {
+ public:
+ CanvasHelper();
+
+ /// Release all references
+ void disposing();
+
+ /** Initialize canvas helper
+
+ This method late-initializes the canvas helper, providing
+ it with the necessary device and output objects. Note that
+ the CanvasHelper does <em>not</em> take ownership of the
+ passed rDevice reference, nor does it perform any
+ reference counting. Thus, to prevent the reference counted
+ SpriteCanvas object from deletion, the user of this class
+ is responsible for holding ref-counted references itself!
+
+ @param rDevice
+ Reference device this canvas is associated with
+
+ */
+ void setDevice( com::sun::star::rendering::XGraphicDevice& rDevice );
+
+ /** Set the target for rendering operations
+
+ @param rTarget
+ Render target
+ */
+ void setTarget( const GraphicsProviderSharedPtr& rTarget );
+
+ /** Set the target for rendering operations
+
+ @param rTarget
+ Render target
+
+ @param rOutputOffset
+ Output offset in pixel
+ */
+ void setTarget( const GraphicsProviderSharedPtr& rTarget,
+ const ::basegfx::B2ISize& rOutputOffset );
+
+
+ // CanvasHelper functionality
+ // ==========================
+
+ // XCanvas (only providing, not implementing the
+ // interface. Also note subtle method parameter differences)
+ void clear();
+ void drawPoint( const ::com::sun::star::rendering::XCanvas* pCanvas,
+ const ::com::sun::star::geometry::RealPoint2D& aPoint,
+ const ::com::sun::star::rendering::ViewState& viewState,
+ const ::com::sun::star::rendering::RenderState& renderState );
+ void drawLine( const ::com::sun::star::rendering::XCanvas* pCanvas,
+ const ::com::sun::star::geometry::RealPoint2D& aStartPoint,
+ const ::com::sun::star::geometry::RealPoint2D& aEndPoint,
+ const ::com::sun::star::rendering::ViewState& viewState,
+ const ::com::sun::star::rendering::RenderState& renderState );
+ void drawBezier( const ::com::sun::star::rendering::XCanvas* pCanvas,
+ const ::com::sun::star::geometry::RealBezierSegment2D& aBezierSegment,
+ const ::com::sun::star::geometry::RealPoint2D& aEndPoint,
+ const ::com::sun::star::rendering::ViewState& viewState,
+ const ::com::sun::star::rendering::RenderState& renderState );
+ ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive >
+ drawPolyPolygon( const ::com::sun::star::rendering::XCanvas* pCanvas,
+ const ::com::sun::star::uno::Reference<
+ ::com::sun::star::rendering::XPolyPolygon2D >& xPolyPolygon,
+ const ::com::sun::star::rendering::ViewState& viewState,
+ const ::com::sun::star::rendering::RenderState& renderState );
+ ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive >
+ strokePolyPolygon( const ::com::sun::star::rendering::XCanvas* pCanvas,
+ const ::com::sun::star::uno::Reference<
+ ::com::sun::star::rendering::XPolyPolygon2D >& xPolyPolygon,
+ const ::com::sun::star::rendering::ViewState& viewState,
+ const ::com::sun::star::rendering::RenderState& renderState,
+ const ::com::sun::star::rendering::StrokeAttributes& strokeAttributes );
+ ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive >
+ strokeTexturedPolyPolygon( const ::com::sun::star::rendering::XCanvas* pCanvas,
+ const ::com::sun::star::uno::Reference<
+ ::com::sun::star::rendering::XPolyPolygon2D >& xPolyPolygon,
+ const ::com::sun::star::rendering::ViewState& viewState,
+ const ::com::sun::star::rendering::RenderState& renderState,
+ const ::com::sun::star::uno::Sequence<
+ ::com::sun::star::rendering::Texture >& textures,
+ const ::com::sun::star::rendering::StrokeAttributes& strokeAttributes );
+ ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive >
+ strokeTextureMappedPolyPolygon( const ::com::sun::star::rendering::XCanvas* pCanvas,
+ const ::com::sun::star::uno::Reference<
+ ::com::sun::star::rendering::XPolyPolygon2D >& xPolyPolygon,
+ const ::com::sun::star::rendering::ViewState& viewState,
+ const ::com::sun::star::rendering::RenderState& renderState,
+ const ::com::sun::star::uno::Sequence<
+ ::com::sun::star::rendering::Texture >& textures,
+ const ::com::sun::star::uno::Reference<
+ ::com::sun::star::geometry::XMapping2D >& xMapping,
+ const ::com::sun::star::rendering::StrokeAttributes& strokeAttributes );
+ ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XPolyPolygon2D >
+ queryStrokeShapes( const ::com::sun::star::rendering::XCanvas* pCanvas,
+ const ::com::sun::star::uno::Reference<
+ ::com::sun::star::rendering::XPolyPolygon2D >& xPolyPolygon,
+ const ::com::sun::star::rendering::ViewState& viewState,
+ const ::com::sun::star::rendering::RenderState& renderState,
+ const ::com::sun::star::rendering::StrokeAttributes& strokeAttributes );
+ ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive >
+ fillPolyPolygon( const ::com::sun::star::rendering::XCanvas* pCanvas,
+ const ::com::sun::star::uno::Reference<
+ ::com::sun::star::rendering::XPolyPolygon2D >& xPolyPolygon,
+ const ::com::sun::star::rendering::ViewState& viewState,
+ const ::com::sun::star::rendering::RenderState& renderState );
+ ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive >
+ fillTexturedPolyPolygon( const ::com::sun::star::rendering::XCanvas* pCanvas,
+ const ::com::sun::star::uno::Reference<
+ ::com::sun::star::rendering::XPolyPolygon2D >& xPolyPolygon,
+ const ::com::sun::star::rendering::ViewState& viewState,
+ const ::com::sun::star::rendering::RenderState& renderState,
+ const ::com::sun::star::uno::Sequence<
+ ::com::sun::star::rendering::Texture >& textures );
+ ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive >
+ fillTextureMappedPolyPolygon( const ::com::sun::star::rendering::XCanvas* pCanvas,
+ const ::com::sun::star::uno::Reference<
+ ::com::sun::star::rendering::XPolyPolygon2D >& xPolyPolygon,
+ const ::com::sun::star::rendering::ViewState& viewState,
+ const ::com::sun::star::rendering::RenderState& renderState,
+ const ::com::sun::star::uno::Sequence<
+ ::com::sun::star::rendering::Texture >& textures,
+ const ::com::sun::star::uno::Reference<
+ ::com::sun::star::geometry::XMapping2D >& xMapping );
+
+ ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCanvasFont > SAL_CALL
+ createFont( const ::com::sun::star::rendering::XCanvas* pCanvas,
+ const ::com::sun::star::rendering::FontRequest& fontRequest,
+ const ::com::sun::star::uno::Sequence<
+ ::com::sun::star::beans::PropertyValue >& extraFontProperties,
+ const ::com::sun::star::geometry::Matrix2D& fontMatrix );
+
+ ::com::sun::star::uno::Sequence< ::com::sun::star::rendering::FontInfo >
+ queryAvailableFonts( const ::com::sun::star::rendering::XCanvas* pCanvas,
+ const ::com::sun::star::rendering::FontInfo& aFilter,
+ const ::com::sun::star::uno::Sequence<
+ ::com::sun::star::beans::PropertyValue >& aFontProperties );
+
+ ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive >
+ drawText( const ::com::sun::star::rendering::XCanvas* pCanvas,
+ const ::com::sun::star::rendering::StringContext& text,
+ const ::com::sun::star::uno::Reference<
+ ::com::sun::star::rendering::XCanvasFont >& xFont,
+ const ::com::sun::star::rendering::ViewState& viewState,
+ const ::com::sun::star::rendering::RenderState& renderState,
+ sal_Int8 textDirection );
+
+ ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive >
+ drawTextLayout( const ::com::sun::star::rendering::XCanvas* pCanvas,
+ const ::com::sun::star::uno::Reference<
+ ::com::sun::star::rendering::XTextLayout >& layoutetText,
+ const ::com::sun::star::rendering::ViewState& viewState,
+ const ::com::sun::star::rendering::RenderState& renderState );
+
+ ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive >
+ drawBitmap( const ::com::sun::star::rendering::XCanvas* pCanvas,
+ const ::com::sun::star::uno::Reference<
+ ::com::sun::star::rendering::XBitmap >& xBitmap,
+ const ::com::sun::star::rendering::ViewState& viewState,
+ const ::com::sun::star::rendering::RenderState& renderState );
+ ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive >
+ drawBitmapModulated( const ::com::sun::star::rendering::XCanvas* pCanvas,
+ const ::com::sun::star::uno::Reference<
+ ::com::sun::star::rendering::XBitmap >& xBitmap,
+ const ::com::sun::star::rendering::ViewState& viewState,
+ const ::com::sun::star::rendering::RenderState& renderState );
+ ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >
+ getDevice();
+
+ // Flush drawing queue to screen
+ void flush() const;
+
+ /** Called from XCanvas base classes, to notify that content
+ is _about_ to change
+ */
+ void modifying() {}
+
+ protected:
+ /// Refcounted global GDI+ state container
+ GDIPlusUserSharedPtr mpGdiPlusUser;
+
+ /** Phyical output device
+
+ Deliberately not a refcounted reference, because of
+ potential circular references for spritecanvas.
+ */
+ com::sun::star::rendering::XGraphicDevice* mpDevice;
+
+ /// Provides the Gdiplus::Graphics to render into
+ GraphicsProviderSharedPtr mpGraphicsProvider;
+
+ bool needOutput() const { return mpGraphicsProvider.get() != NULL; };
+
+ // returns transparency of color
+ void setupGraphicsState( GraphicsSharedPtr& rGraphics,
+ const ::com::sun::star::rendering::ViewState& viewState,
+ const ::com::sun::star::rendering::RenderState& renderState );
+
+ Gdiplus::CompositingMode calcCompositingMode( sal_Int8 nMode );
+
+ /// Current (transformation-independent) output buffer offset
+ ::basegfx::B2ISize maOutputOffset;
+ };
+}
+
+#endif /* _DXCANVAS_CANVASHELPER_HXX_ */