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
151
152
153
154
155
156
157
158
159
|
/* -*- 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 .
*/
#include <sal/config.h>
#include <basegfx/point/b2dpoint.hxx>
#include <cppuhelper/supportsservice.hxx>
#include <tools/diagnose_ex.h>
#include <vcl/outdev.hxx>
#include "canvascustomsprite.hxx"
using namespace ::com::sun::star;
namespace vclcanvas
{
CanvasCustomSprite::CanvasCustomSprite( const geometry::RealSize2D& rSpriteSize,
rendering::XGraphicDevice& rDevice,
const ::canvas::SpriteSurface::Reference& rOwningSpriteCanvas,
const OutDevProviderSharedPtr& rOutDevProvider,
bool bShowSpriteBounds )
{
ENSURE_OR_THROW( rOwningSpriteCanvas &&
rOutDevProvider,
"CanvasCustomSprite::CanvasCustomSprite(): Invalid sprite canvas" );
// setup back buffer
const ::Size aSize(
static_cast<sal_Int32>( std::max( 1.0,
ceil( rSpriteSize.Width ))), // round up to nearest int,
// enforce sprite to have at
// least (1,1) pixel size
static_cast<sal_Int32>( std::max( 1.0,
ceil( rSpriteSize.Height ))) );
// create content backbuffer in screen depth
BackBufferSharedPtr pBackBuffer = std::make_shared<BackBuffer>( rOutDevProvider->getOutDev() );
pBackBuffer->setSize( aSize );
// create mask backbuffer, with one bit color depth
BackBufferSharedPtr pBackBufferMask = std::make_shared<BackBuffer>( rOutDevProvider->getOutDev(),
true );
pBackBufferMask->setSize( aSize );
// TODO(F1): Implement alpha vdev (could prolly enable
// antialiasing again, then)
// disable font antialiasing (causes ugly shadows otherwise)
pBackBuffer->getOutDev().SetAntialiasing( AntialiasingFlags::DisableText );
pBackBufferMask->getOutDev().SetAntialiasing( AntialiasingFlags::DisableText );
// set mask vdev drawmode, such that everything is painted
// black. That leaves us with a binary image, white for
// background, black for painted content
pBackBufferMask->getOutDev().SetDrawMode( DrawModeFlags::BlackLine | DrawModeFlags::BlackFill | DrawModeFlags::BlackText |
DrawModeFlags::BlackGradient | DrawModeFlags::BlackBitmap );
// setup canvas helper
// always render into back buffer, don't preserve state (it's
// our private VDev, after all), have notion of alpha
maCanvasHelper.init( rDevice,
pBackBuffer,
false,
true );
maCanvasHelper.setBackgroundOutDev( pBackBufferMask );
// setup sprite helper
maSpriteHelper.init( rSpriteSize,
rOwningSpriteCanvas,
pBackBuffer,
pBackBufferMask,
bShowSpriteBounds );
// clear sprite to 100% transparent
maCanvasHelper.clear();
}
OUString SAL_CALL CanvasCustomSprite::getImplementationName()
{
return "VCLCanvas.CanvasCustomSprite";
}
sal_Bool SAL_CALL CanvasCustomSprite::supportsService( const OUString& ServiceName )
{
return cppu::supportsService( this, ServiceName );
}
uno::Sequence< OUString > SAL_CALL CanvasCustomSprite::getSupportedServiceNames()
{
return { "com.sun.star.rendering.CanvasCustomSprite" };
}
// Sprite
void CanvasCustomSprite::redraw( OutputDevice& rOutDev,
bool bBufferedUpdate ) const
{
SolarMutexGuard aGuard;
redraw( rOutDev, maSpriteHelper.getPosPixel(), bBufferedUpdate );
}
void CanvasCustomSprite::redraw( OutputDevice& rOutDev,
const ::basegfx::B2DPoint& rOrigOutputPos,
bool bBufferedUpdate ) const
{
SolarMutexGuard aGuard;
maSpriteHelper.redraw( rOutDev,
rOrigOutputPos,
mbSurfaceDirty,
bBufferedUpdate );
mbSurfaceDirty = false;
}
bool CanvasCustomSprite::repaint( const GraphicObjectSharedPtr& rGrf,
const rendering::ViewState& viewState,
const rendering::RenderState& renderState,
const ::Point& rPt,
const ::Size& rSz,
const GraphicAttr& rAttr ) const
{
SolarMutexGuard aGuard;
mbSurfaceDirty = true;
return maCanvasHelper.repaint( rGrf, viewState, renderState, rPt, rSz, rAttr );
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
