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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#pragma once
#include <com/sun/star/rendering/XCanvas.hpp>
#include <com/sun/star/rendering/XBitmapCanvas.hpp>
#include <com/sun/star/rendering/XIntegerBitmap.hpp>
#include <basegfx/vector/b2isize.hxx>
#include <basegfx/vector/b2dsize.hxx>
#include "dx_graphicsprovider.hxx"
#include "dx_gdiplususer.hxx"
#include "dx_impltools.hxx"
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
{
public:
CanvasHelper();
/// make noncopyable
CanvasHelper(const CanvasHelper&) = delete;
const CanvasHelper& operator=(const CanvasHelper&) = delete;
/// 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( css::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 css::rendering::XCanvas* pCanvas,
const css::geometry::RealPoint2D& aPoint,
const css::rendering::ViewState& viewState,
const css::rendering::RenderState& renderState );
void drawLine( const css::rendering::XCanvas* pCanvas,
const css::geometry::RealPoint2D& aStartPoint,
const css::geometry::RealPoint2D& aEndPoint,
const css::rendering::ViewState& viewState,
const css::rendering::RenderState& renderState );
void drawBezier( const css::rendering::XCanvas* pCanvas,
const css::geometry::RealBezierSegment2D& aBezierSegment,
const css::geometry::RealPoint2D& aEndPoint,
const css::rendering::ViewState& viewState,
const css::rendering::RenderState& renderState );
css::uno::Reference< css::rendering::XCachedPrimitive >
drawPolyPolygon( const css::rendering::XCanvas* pCanvas,
const css::uno::Reference<
css::rendering::XPolyPolygon2D >& xPolyPolygon,
const css::rendering::ViewState& viewState,
const css::rendering::RenderState& renderState );
css::uno::Reference< css::rendering::XCachedPrimitive >
strokePolyPolygon( const css::rendering::XCanvas* pCanvas,
const css::uno::Reference<
css::rendering::XPolyPolygon2D >& xPolyPolygon,
const css::rendering::ViewState& viewState,
const css::rendering::RenderState& renderState,
const css::rendering::StrokeAttributes& strokeAttributes );
css::uno::Reference< css::rendering::XCachedPrimitive >
strokeTexturedPolyPolygon( const css::rendering::XCanvas* pCanvas,
const css::uno::Reference<
css::rendering::XPolyPolygon2D >& xPolyPolygon,
const css::rendering::ViewState& viewState,
const css::rendering::RenderState& renderState,
const css::uno::Sequence<
css::rendering::Texture >& textures,
const css::rendering::StrokeAttributes& strokeAttributes );
css::uno::Reference< css::rendering::XCachedPrimitive >
strokeTextureMappedPolyPolygon( const css::rendering::XCanvas* pCanvas,
const css::uno::Reference<
css::rendering::XPolyPolygon2D >& xPolyPolygon,
const css::rendering::ViewState& viewState,
const css::rendering::RenderState& renderState,
const css::uno::Sequence<
css::rendering::Texture >& textures,
const css::uno::Reference<
css::geometry::XMapping2D >& xMapping,
const css::rendering::StrokeAttributes& strokeAttributes );
css::uno::Reference< css::rendering::XPolyPolygon2D >
queryStrokeShapes( const css::rendering::XCanvas* pCanvas,
const css::uno::Reference<
css::rendering::XPolyPolygon2D >& xPolyPolygon,
const css::rendering::ViewState& viewState,
const css::rendering::RenderState& renderState,
const css::rendering::StrokeAttributes& strokeAttributes );
css::uno::Reference< css::rendering::XCachedPrimitive >
fillPolyPolygon( const css::rendering::XCanvas* pCanvas,
const css::uno::Reference<
css::rendering::XPolyPolygon2D >& xPolyPolygon,
const css::rendering::ViewState& viewState,
const css::rendering::RenderState& renderState );
css::uno::Reference< css::rendering::XCachedPrimitive >
fillTexturedPolyPolygon( const css::rendering::XCanvas* pCanvas,
const css::uno::Reference<
css::rendering::XPolyPolygon2D >& xPolyPolygon,
const css::rendering::ViewState& viewState,
const css::rendering::RenderState& renderState,
const css::uno::Sequence<
css::rendering::Texture >& textures );
css::uno::Reference< css::rendering::XCachedPrimitive >
fillTextureMappedPolyPolygon( const css::rendering::XCanvas* pCanvas,
const css::uno::Reference<
css::rendering::XPolyPolygon2D >& xPolyPolygon,
const css::rendering::ViewState& viewState,
const css::rendering::RenderState& renderState,
const css::uno::Sequence<
css::rendering::Texture >& textures,
const css::uno::Reference<
css::geometry::XMapping2D >& xMapping );
css::uno::Reference< css::rendering::XCanvasFont >
createFont( const css::rendering::XCanvas* pCanvas,
const css::rendering::FontRequest& fontRequest,
const css::uno::Sequence<
css::beans::PropertyValue >& extraFontProperties,
const css::geometry::Matrix2D& fontMatrix );
css::uno::Sequence< css::rendering::FontInfo >
queryAvailableFonts( const css::rendering::XCanvas* pCanvas,
const css::rendering::FontInfo& aFilter,
const css::uno::Sequence<
css::beans::PropertyValue >& aFontProperties );
css::uno::Reference< css::rendering::XCachedPrimitive >
drawText( const css::rendering::XCanvas* pCanvas,
const css::rendering::StringContext& text,
const css::uno::Reference<
css::rendering::XCanvasFont >& xFont,
const css::rendering::ViewState& viewState,
const css::rendering::RenderState& renderState,
sal_Int8 textDirection );
css::uno::Reference< css::rendering::XCachedPrimitive >
drawTextLayout( const css::rendering::XCanvas* pCanvas,
const css::uno::Reference<
css::rendering::XTextLayout >& laidOutText,
const css::rendering::ViewState& viewState,
const css::rendering::RenderState& renderState );
css::uno::Reference< css::rendering::XCachedPrimitive >
drawBitmap( const css::rendering::XCanvas* pCanvas,
const css::uno::Reference<
css::rendering::XBitmap >& xBitmap,
const css::rendering::ViewState& viewState,
const css::rendering::RenderState& renderState );
css::uno::Reference< css::rendering::XCachedPrimitive >
drawBitmapModulated( const css::rendering::XCanvas* pCanvas,
const css::uno::Reference<
css::rendering::XBitmap >& xBitmap,
const css::rendering::ViewState& viewState,
const css::rendering::RenderState& renderState );
css::uno::Reference< css::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.
*/
css::rendering::XGraphicDevice* mpDevice;
/// Provides the Gdiplus::Graphics to render into
GraphicsProviderSharedPtr mpGraphicsProvider;
bool needOutput() const { return bool(mpGraphicsProvider); };
// returns transparency of color
void setupGraphicsState( GraphicsSharedPtr const & rGraphics,
const css::rendering::ViewState& viewState,
const css::rendering::RenderState& renderState );
Gdiplus::CompositingMode calcCompositingMode( sal_Int8 nMode );
/// Current (transformation-independent) output buffer offset
::basegfx::B2ISize maOutputOffset;
};
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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