1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
/* -*- 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 .
*/
#ifndef INCLUDED_CANVAS_SOURCE_TOOLS_PAGE_HXX
#define INCLUDED_CANVAS_SOURCE_TOOLS_PAGE_HXX
#include <basegfx/vector/b2isize.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 + maRect.maSize ),
*mpBuffer );
}
private:
Page* mpPage;
SurfaceRect maRect;
std::shared_ptr<IColorBuffer> mpBuffer;
::basegfx::B2IPoint maSourceOffset;
};
}
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
