libreoffice/canvas/source/directx/dx_canvashelper.hxx
Noel Grandin 5357da349b Revert "remove canvas/cairo and canvas/gdi and canvas/directx backends"
So the vclcanvas backend is in worse shape than I thought. It will
take too long to get it into shape to be sure of making the next
release, so revert this for now, and I will have to find another
approach.

This reverts the following commits

commit fbefe07e4c4a8959278ea08a247d75612994727c
Author: Michael Weghorn <m.weghorn@posteo.de>
Date:   Thu Feb 20 09:42:14 2025 +0100

    qt: Remove now unused vcl/inc/qt6/QtSvpSurface.hxx

commit 595354ab7e01546765d84103aaf2bc38e5d3c9b3
Author: Julien Nabet <serval2412@yahoo.fr>
Date:   Wed Feb 19 21:13:49 2025 +0100

    Remove also canvas/cairo in gtk4, qt6 and gtk3_kde5

commit d539f6e99e1be89e6133b2ef623c67bf4f0cff4f
Author: Noel Grandin <noelgrandin@gmail.com>
Date:   Wed Feb 19 18:15:30 2025 +0200

    fix "local variable is unused" warning

commit 704f61b1bd2c54831c383e34e74315bd6da356e2
Author: Noel Grandin <noelgrandin@collabora.co.uk>
Date:   Wed Jan 29 15:35:21 2025 +0200

    remove canvas/cairo and canvas/gdi and canvas/directx backends

Change-Id: I0492dabf7da8c42a15720c868f161919e8dc7ae4
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/181984
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
2025-02-21 10:40:31 +01:00

253 lines
13 KiB
C++

/* -*- 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: */