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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 :
21 : #include <canvas/debug.hxx>
22 : #include <tools/diagnose_ex.h>
23 : #include <canvas/verbosetrace.hxx>
24 :
25 : #include <rtl/math.hxx>
26 :
27 : #include <vcl/outdev.hxx>
28 : #include <vcl/bitmap.hxx>
29 : #include <vcl/alpha.hxx>
30 : #include <vcl/bitmapex.hxx>
31 : #include <vcl/canvastools.hxx>
32 :
33 : #include <basegfx/matrix/b2dhommatrix.hxx>
34 : #include <basegfx/point/b2dpoint.hxx>
35 : #include <basegfx/tools/canvastools.hxx>
36 : #include <basegfx/polygon/b2dpolygon.hxx>
37 : #include <basegfx/polygon/b2dpolygontools.hxx>
38 : #include <basegfx/polygon/b2dpolypolygontools.hxx>
39 : #include <basegfx/numeric/ftools.hxx>
40 :
41 : #include <canvas/canvastools.hxx>
42 :
43 : #include "canvascustomsprite.hxx"
44 :
45 : using namespace ::com::sun::star;
46 :
47 :
48 : namespace vclcanvas
49 : {
50 :
51 0 : CanvasCustomSprite::CanvasCustomSprite( const geometry::RealSize2D& rSpriteSize,
52 : rendering::XGraphicDevice& rDevice,
53 : const ::canvas::SpriteSurface::Reference& rOwningSpriteCanvas,
54 : const OutDevProviderSharedPtr& rOutDevProvider,
55 0 : bool bShowSpriteBounds )
56 : {
57 0 : ENSURE_OR_THROW( rOwningSpriteCanvas.get() &&
58 : rOutDevProvider,
59 : "CanvasCustomSprite::CanvasCustomSprite(): Invalid sprite canvas" );
60 :
61 : // setup back buffer
62 : // -----------------
63 :
64 : const ::Size aSize(
65 : static_cast<sal_Int32>( ::std::max( 1.0,
66 0 : ceil( rSpriteSize.Width ))), // round up to nearest int,
67 : // enforce sprite to have at
68 : // least (1,1) pixel size
69 : static_cast<sal_Int32>( ::std::max( 1.0,
70 0 : ceil( rSpriteSize.Height ))) );
71 :
72 : // create content backbuffer in screen depth
73 0 : BackBufferSharedPtr pBackBuffer( new BackBuffer( rOutDevProvider->getOutDev() ) );
74 0 : pBackBuffer->setSize( aSize );
75 :
76 : // create mask backbuffer, with one bit color depth
77 0 : BackBufferSharedPtr pBackBufferMask( new BackBuffer( rOutDevProvider->getOutDev(),
78 0 : true ) );
79 0 : pBackBufferMask->setSize( aSize );
80 :
81 : // TODO(F1): Implement alpha vdev (could prolly enable
82 : // antialiasing again, then)
83 :
84 : // disable font antialiasing (causes ugly shadows otherwise)
85 0 : pBackBuffer->getOutDev().SetAntialiasing( ANTIALIASING_DISABLE_TEXT );
86 0 : pBackBufferMask->getOutDev().SetAntialiasing( ANTIALIASING_DISABLE_TEXT );
87 :
88 : // set mask vdev drawmode, such that everything is painted
89 : // black. That leaves us with a binary image, white for
90 : // background, black for painted content
91 0 : pBackBufferMask->getOutDev().SetDrawMode( DRAWMODE_BLACKLINE | DRAWMODE_BLACKFILL | DRAWMODE_BLACKTEXT |
92 0 : DRAWMODE_BLACKGRADIENT | DRAWMODE_BLACKBITMAP );
93 :
94 :
95 : // setup canvas helper
96 : // -------------------
97 :
98 : // always render into back buffer, don't preserve state (it's
99 : // our private VDev, after all), have notion of alpha
100 : maCanvasHelper.init( rDevice,
101 : pBackBuffer,
102 : false,
103 0 : true );
104 0 : maCanvasHelper.setBackgroundOutDev( pBackBufferMask );
105 :
106 :
107 : // setup sprite helper
108 : // -------------------
109 :
110 : maSpriteHelper.init( rSpriteSize,
111 : rOwningSpriteCanvas,
112 : pBackBuffer,
113 : pBackBufferMask,
114 0 : bShowSpriteBounds );
115 :
116 : // clear sprite to 100% transparent
117 0 : maCanvasHelper.clear();
118 0 : }
119 :
120 : #define IMPLEMENTATION_NAME "VCLCanvas.CanvasCustomSprite"
121 : #define SERVICE_NAME "com.sun.star.rendering.CanvasCustomSprite"
122 :
123 0 : OUString SAL_CALL CanvasCustomSprite::getImplementationName() throw( uno::RuntimeException )
124 : {
125 0 : return OUString( IMPLEMENTATION_NAME );
126 : }
127 :
128 0 : sal_Bool SAL_CALL CanvasCustomSprite::supportsService( const OUString& ServiceName ) throw( uno::RuntimeException )
129 : {
130 0 : return ServiceName == SERVICE_NAME;
131 : }
132 :
133 0 : uno::Sequence< OUString > SAL_CALL CanvasCustomSprite::getSupportedServiceNames() throw( uno::RuntimeException )
134 : {
135 0 : uno::Sequence< OUString > aRet(1);
136 0 : aRet[0] = OUString( SERVICE_NAME );
137 :
138 0 : return aRet;
139 : }
140 :
141 : // Sprite
142 0 : void CanvasCustomSprite::redraw( OutputDevice& rOutDev,
143 : bool bBufferedUpdate ) const
144 : {
145 0 : SolarMutexGuard aGuard;
146 :
147 0 : redraw( rOutDev, maSpriteHelper.getPosPixel(), bBufferedUpdate );
148 0 : }
149 :
150 0 : void CanvasCustomSprite::redraw( OutputDevice& rOutDev,
151 : const ::basegfx::B2DPoint& rOrigOutputPos,
152 : bool bBufferedUpdate ) const
153 : {
154 0 : SolarMutexGuard aGuard;
155 :
156 : maSpriteHelper.redraw( rOutDev,
157 : rOrigOutputPos,
158 : mbSurfaceDirty,
159 0 : bBufferedUpdate );
160 :
161 0 : mbSurfaceDirty = false;
162 0 : }
163 :
164 0 : bool CanvasCustomSprite::repaint( const GraphicObjectSharedPtr& rGrf,
165 : const rendering::ViewState& viewState,
166 : const rendering::RenderState& renderState,
167 : const ::Point& rPt,
168 : const ::Size& rSz,
169 : const GraphicAttr& rAttr ) const
170 : {
171 0 : SolarMutexGuard aGuard;
172 :
173 0 : mbSurfaceDirty = true;
174 :
175 0 : return maCanvasHelper.repaint( rGrf, viewState, renderState, rPt, rSz, rAttr );
176 : }
177 :
178 0 : }
179 :
180 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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