148 lines
5.1 KiB
C++
148 lines
5.1 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 <basegfx/vector/b2isize.hxx>
|
|
#include <basegfx/vector/b2ivector.hxx>
|
|
#include <basegfx/range/b2irectangle.hxx>
|
|
#include <rendering/icolorbuffer.hxx>
|
|
#include <rendering/irendermodule.hxx>
|
|
#include <rendering/isurface.hxx>
|
|
|
|
#include <memory>
|
|
#include <vector>
|
|
#include "surfacerect.hxx"
|
|
|
|
namespace canvas
|
|
{
|
|
class PageFragment;
|
|
|
|
typedef std::shared_ptr< PageFragment > FragmentSharedPtr;
|
|
|
|
/** One page of IRenderModule-provided texture space
|
|
*/
|
|
class Page
|
|
{
|
|
public:
|
|
explicit Page( const std::shared_ptr<IRenderModule>& rRenderModule );
|
|
|
|
FragmentSharedPtr allocateSpace( const ::basegfx::B2ISize& rSize );
|
|
bool nakedFragment( const FragmentSharedPtr& pFragment );
|
|
void free( const FragmentSharedPtr& pFragment );
|
|
const std::shared_ptr<ISurface>& getSurface() const { return mpSurface; }
|
|
bool isValid() const;
|
|
void validate();
|
|
|
|
private:
|
|
typedef std::vector<FragmentSharedPtr> FragmentContainer_t;
|
|
|
|
std::shared_ptr<IRenderModule> mpRenderModule;
|
|
std::shared_ptr<ISurface> mpSurface;
|
|
FragmentContainer_t mpFragments;
|
|
|
|
bool insert( SurfaceRect& r );
|
|
bool isValidLocation( const SurfaceRect& r ) const;
|
|
};
|
|
|
|
typedef std::shared_ptr< Page > PageSharedPtr;
|
|
|
|
|
|
/** A part of a page, which gets allocated to a surface
|
|
*/
|
|
class PageFragment
|
|
{
|
|
public:
|
|
PageFragment( const SurfaceRect& r,
|
|
Page* pPage ) :
|
|
mpPage(pPage),
|
|
maRect(r),
|
|
mpBuffer(),
|
|
maSourceOffset()
|
|
{
|
|
}
|
|
|
|
/// Creates a 'naked' fragment.
|
|
explicit PageFragment( const ::basegfx::B2ISize& rSize ) :
|
|
mpPage(nullptr),
|
|
maRect(rSize),
|
|
mpBuffer(),
|
|
maSourceOffset()
|
|
{
|
|
}
|
|
|
|
bool isNaked() const { return (mpPage == nullptr); }
|
|
const SurfaceRect& getRect() const { return maRect; }
|
|
const ::basegfx::B2IPoint& getPos() const { return maRect.maPos; }
|
|
const ::basegfx::B2ISize& getSize() const { return maRect.maSize; }
|
|
void setColorBuffer( const std::shared_ptr<IColorBuffer>& pColorBuffer ) { mpBuffer=pColorBuffer; }
|
|
void setSourceOffset( const ::basegfx::B2IPoint& rOffset ) { maSourceOffset=rOffset; }
|
|
void setPage( Page* pPage ) { mpPage=pPage; }
|
|
|
|
void free( const FragmentSharedPtr& pFragment )
|
|
{
|
|
if(mpPage)
|
|
mpPage->free(pFragment);
|
|
|
|
mpPage=nullptr;
|
|
}
|
|
|
|
bool select( bool bRefresh )
|
|
{
|
|
// request was made to select this fragment,
|
|
// but this fragment has not been located on any
|
|
// of the available pages, we need to hurry now.
|
|
if(!mpPage)
|
|
return false;
|
|
|
|
std::shared_ptr<ISurface> pSurface(mpPage->getSurface());
|
|
|
|
// select this surface before wiping the contents
|
|
// since a specific implementation could trigger
|
|
// a rendering operation here...
|
|
if(!(pSurface->selectTexture()))
|
|
return false;
|
|
|
|
// call refresh() if requested, otherwise we're up to date...
|
|
return !bRefresh || refresh();
|
|
}
|
|
|
|
bool refresh()
|
|
{
|
|
if(!mpPage)
|
|
return false;
|
|
|
|
std::shared_ptr<ISurface> pSurface(mpPage->getSurface());
|
|
|
|
return pSurface->update( maRect.maPos,
|
|
::basegfx::B2IRectangle(
|
|
maSourceOffset,
|
|
maSourceOffset + basegfx::B2IVector(maRect.maSize.getWidth(), maRect.maSize.getHeight())),
|
|
*mpBuffer );
|
|
}
|
|
|
|
private:
|
|
Page* mpPage;
|
|
SurfaceRect maRect;
|
|
std::shared_ptr<IColorBuffer> mpBuffer;
|
|
::basegfx::B2IPoint maSourceOffset;
|
|
};
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|