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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 <basegfx/range/b2drectangle.hxx>
#include <com/sun/star/awt/Point.hpp>
#include <com/sun/star/awt/XWindowListener.hpp>
#include <com/sun/star/rendering/XSpriteCanvas.hpp>
#include <com/sun/star/rendering/XBitmap.hpp>
#include <comphelper/compbase.hxx>
#include <memory>
namespace sd::presenter { class CanvasUpdateRequester; }
namespace com::sun::star::awt { class XWindow; }
namespace com::sun::star::geometry { struct AffineMatrix2D; }
namespace sd::presenter {
typedef comphelper::WeakComponentImplHelper <
css::rendering::XSpriteCanvas,
css::rendering::XBitmap,
css::awt::XWindowListener
> PresenterCanvasInterfaceBase;
/** Wrapper around a shared canvas that forwards most of its methods to the
shared canvas. Most notable differences are:
1. The transformation of the ViewState of forwarded calls is modified by adding
an offset.
2. The clip polygon of the ViewState of forwarded calls is intersected
with a clip rectangle that can be set via SetClip().
3. Calls to updateScreen() are collected. One call to the updateScreen()
method of the shared canvas is made asynchronously.
The canvas can use different canvases for sharing and for sprite
construction. This allows the shared canvas to be a canvas of sprite itself.
*/
class PresenterCanvas
: public PresenterCanvasInterfaceBase
{
public:
/** This constructor is used when a PresenterCanvas object is created
directly, typically by the PresenterCanvasFactory.
@param rxUpdateCanvas
This canvas is used to call updateScreen() at and to create
sprites. In the typical case this canvas is identical to the
rxSharedCanvas argument.
@param rxUpdateWindow
The window that belongs to the canvas given by the
rxUpdateCanvas argument.
@param rxSharedCanvas
The canvas that is wrapped by the new instance of this class.
Typically this is a regular XSpriteCanvas and then is identical
to the one given by the rxUpdateCanvas argument. It may be the
canvas of a sprite which does not support the XSpriteCanvas
interface. In that case the canvas that created the sprite can
be given as rxUpdateCanvas argument to allow to create further
sprites and to have proper calls to updateScreen().
@param rxSharedWindow
The window that belongs to the canvas given by the
rxSharedCanvas argument.
@param rxWindow
The window that is represented by the new PresenterCanvas
object. It is expected to be a direct descendant of
rxSharedWindow. Its position inside rxSharedWindow defines the
offset of the canvas implemented by the new PresenterCanvas
object and rxSharedCanvas.
*/
PresenterCanvas (
const css::uno::Reference<css::rendering::XSpriteCanvas>& rxUpdateCanvas,
const css::uno::Reference<css::awt::XWindow>& rxUpdateWindow,
const css::uno::Reference<css::rendering::XCanvas>& rxSharedCanvas,
const css::uno::Reference<css::awt::XWindow>& rxSharedWindow,
const css::uno::Reference<css::awt::XWindow>& rxWindow);
virtual ~PresenterCanvas() override;
PresenterCanvas(const PresenterCanvas&) = delete;
PresenterCanvas& operator=(const PresenterCanvas&) = delete;
virtual void disposing(std::unique_lock<std::mutex>&) override;
css::awt::Point GetOffset (const css::uno::Reference<css::awt::XWindow>& rxBaseWindow);
/** Merge the given view state with the view state that translates the
(virtual) child canvas to the shared canvas.
*/
css::rendering::ViewState MergeViewState (
const css::rendering::ViewState& rViewState,
const css::awt::Point& raOffset);
/** Called by custom sprites to update their clip polygon so that they
are clipped at the borders of the canvas. This method has to be
called after each change of the sprite location so that the bounds
of the canvas can be transformed into the coordinate system of the
sprite.
*/
css::uno::Reference<css::rendering::XPolyPolygon2D> UpdateSpriteClip (
const css::uno::Reference<css::rendering::XPolyPolygon2D>& rxOriginalClip,
const css::geometry::RealPoint2D& rLocation);
// XCanvas
virtual void SAL_CALL clear() override;
virtual void SAL_CALL drawPoint (
const css::geometry::RealPoint2D& aPoint,
const css::rendering::ViewState& aViewState,
const css::rendering::RenderState& aRenderState) override;
virtual void SAL_CALL drawLine (
const css::geometry::RealPoint2D& aStartPoint,
const css::geometry::RealPoint2D& aEndPoint,
const css::rendering::ViewState& aViewState,
const css::rendering::RenderState& aRenderState) override;
virtual void SAL_CALL drawBezier (
const css::geometry::RealBezierSegment2D& aBezierSegment,
const css::geometry::RealPoint2D& aEndPoint,
const css::rendering::ViewState& aViewState,
const css::rendering::RenderState& aRenderState) override;
virtual css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL drawPolyPolygon (
const css::uno::Reference< css::rendering::XPolyPolygon2D >& xPolyPolygon,
const css::rendering::ViewState& aViewState,
const css::rendering::RenderState& aRenderState) override;
virtual css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL strokePolyPolygon (
const css::uno::Reference< css::rendering::XPolyPolygon2D >& xPolyPolygon,
const css::rendering::ViewState& aViewState,
const css::rendering::RenderState& aRenderState,
const css::rendering::StrokeAttributes& aStrokeAttributes) override;
virtual css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL
strokeTexturedPolyPolygon (
const css::uno::Reference< css::rendering::XPolyPolygon2D >& xPolyPolygon,
const css::rendering::ViewState& aViewState,
const css::rendering::RenderState& aRenderState,
const css::uno::Sequence< css::rendering::Texture >& aTextures,
const css::rendering::StrokeAttributes& aStrokeAttributes) override;
virtual css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL
strokeTextureMappedPolyPolygon(
const css::uno::Reference<css::rendering::XPolyPolygon2D >& xPolyPolygon,
const css::rendering::ViewState& aViewState,
const css::rendering::RenderState& aRenderState,
const css::uno::Sequence<css::rendering::Texture>& aTextures,
const css::uno::Reference<css::geometry::XMapping2D>& xMapping,
const css::rendering::StrokeAttributes& aStrokeAttributes) override;
virtual css::uno::Reference<css::rendering::XPolyPolygon2D> SAL_CALL
queryStrokeShapes(
const css::uno::Reference<css::rendering::XPolyPolygon2D>& xPolyPolygon,
const css::rendering::ViewState& aViewState,
const css::rendering::RenderState& aRenderState,
const css::rendering::StrokeAttributes& aStrokeAttributes) override;
virtual css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL
fillPolyPolygon(
const css::uno::Reference<css::rendering::XPolyPolygon2D>& xPolyPolygon,
const css::rendering::ViewState& aViewState,
const css::rendering::RenderState& aRenderState) override;
virtual css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL
fillTexturedPolyPolygon(
const css::uno::Reference<css::rendering::XPolyPolygon2D>& xPolyPolygon,
const css::rendering::ViewState& aViewState,
const css::rendering::RenderState& aRenderState,
const css::uno::Sequence<css::rendering::Texture>& xTextures) override;
virtual css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL
fillTextureMappedPolyPolygon(
const css::uno::Reference< css::rendering::XPolyPolygon2D >& xPolyPolygon,
const css::rendering::ViewState& aViewState,
const css::rendering::RenderState& aRenderState,
const css::uno::Sequence< css::rendering::Texture >& xTextures,
const css::uno::Reference< css::geometry::XMapping2D >& xMapping) override;
virtual css::uno::Reference<css::rendering::XCanvasFont> SAL_CALL
createFont(
const css::rendering::FontRequest& aFontRequest,
const css::uno::Sequence< css::beans::PropertyValue >& aExtraFontProperties,
const css::geometry::Matrix2D& aFontMatrix) override;
virtual css::uno::Sequence<css::rendering::FontInfo> SAL_CALL
queryAvailableFonts(
const css::rendering::FontInfo& aFilter,
const css::uno::Sequence< css::beans::PropertyValue >& aFontProperties) override;
virtual css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL
drawText(
const css::rendering::StringContext& aText,
const css::uno::Reference< css::rendering::XCanvasFont >& xFont,
const css::rendering::ViewState& aViewState,
const css::rendering::RenderState& aRenderState,
::sal_Int8 nTextDirection) override;
virtual css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL
drawTextLayout(
const css::uno::Reference< css::rendering::XTextLayout >& xLayoutetText,
const css::rendering::ViewState& aViewState,
const css::rendering::RenderState& aRenderState) override;
virtual css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL
drawBitmap(
const css::uno::Reference< css::rendering::XBitmap >& xBitmap,
const css::rendering::ViewState& aViewState,
const css::rendering::RenderState& aRenderState) override;
virtual css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL
drawBitmapModulated(
const css::uno::Reference< css::rendering::XBitmap>& xBitmap,
const css::rendering::ViewState& aViewState,
const css::rendering::RenderState& aRenderState) override;
virtual css::uno::Reference<css::rendering::XGraphicDevice> SAL_CALL
getDevice() override;
// XSpriteCanvas
css::uno::Reference< css::rendering::XAnimatedSprite > SAL_CALL
createSpriteFromAnimation (
const css::uno::Reference< css::rendering::XAnimation >& animation) override;
css::uno::Reference< css::rendering::XAnimatedSprite > SAL_CALL
createSpriteFromBitmaps (
const css::uno::Sequence<
css::uno::Reference< css::rendering::XBitmap > >& animationBitmaps,
::sal_Int8 interpolationMode) override;
css::uno::Reference< css::rendering::XCustomSprite > SAL_CALL
createCustomSprite (
const css::geometry::RealSize2D& spriteSize) override;
css::uno::Reference< css::rendering::XSprite > SAL_CALL
createClonedSprite (
const css::uno::Reference< css::rendering::XSprite >& original) override;
sal_Bool SAL_CALL updateScreen (sal_Bool bUpdateAll) override;
// XEventListener
virtual void SAL_CALL disposing (const css::lang::EventObject& rEvent) override;
// XWindowListener
virtual void SAL_CALL windowResized (const css::awt::WindowEvent& rEvent) override;
virtual void SAL_CALL windowMoved (const css::awt::WindowEvent& rEvent) override;
virtual void SAL_CALL windowShown (const css::lang::EventObject& rEvent) override;
virtual void SAL_CALL windowHidden (const css::lang::EventObject& rEvent) override;
// XBitmap
virtual css::geometry::IntegerSize2D SAL_CALL getSize() override;
virtual sal_Bool SAL_CALL hasAlpha() override;
virtual css::uno::Reference<css::rendering::XBitmap> SAL_CALL getScaledBitmap(
const css::geometry::RealSize2D& rNewSize,
sal_Bool bFast) override;
private:
css::uno::Reference<css::rendering::XSpriteCanvas> mxUpdateCanvas;
css::uno::Reference<css::awt::XWindow> mxUpdateWindow;
css::uno::Reference<css::rendering::XCanvas> mxSharedCanvas;
css::uno::Reference<css::awt::XWindow> mxSharedWindow;
/** The window for which a canvas is emulated.
*/
css::uno::Reference<css::awt::XWindow> mxWindow;
/** Offset of the emulated canvas with respect to the shared canvas.
*/
css::awt::Point maOffset;
/** The UpdateRequester is used by updateScreen() to schedule
updateScreen() calls at the shared canvas.
*/
std::shared_ptr<CanvasUpdateRequester> m_pUpdateRequester;
/** When this flag is true (it is set to true after every call to
updateScreen()) then the next call to MergeViewState updates the
maOffset member. A possible optimization would set this flag only
to true when one of the windows between mxWindow and mxSharedWindow
changes its position.
*/
bool mbOffsetUpdatePending;
::basegfx::B2DRectangle GetClipRectangle (
const css::geometry::AffineMatrix2D& rViewTransform,
const css::awt::Point& rOffset);
css::rendering::ViewState MergeViewState (const css::rendering::ViewState& rViewState);
/** @throws css::lang::DisposedException when the object has already been
disposed.
*/
void ThrowIfDisposed();
};
} // end of namespace ::sd::presenter
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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