Line data Source code
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 : #include "PresenterCanvasHelper.hxx"
21 :
22 : #include "PresenterController.hxx"
23 : #include "PresenterGeometryHelper.hxx"
24 : #include <com/sun/star/rendering/CompositeOperation.hpp>
25 : #include <com/sun/star/rendering/TextDirection.hpp>
26 : #include <com/sun/star/rendering/TexturingMode.hpp>
27 :
28 : using namespace ::com::sun::star;
29 : using namespace ::com::sun::star::uno;
30 :
31 : namespace sdext { namespace presenter {
32 :
33 0 : PresenterCanvasHelper::PresenterCanvasHelper()
34 : : maDefaultViewState(
35 : geometry::AffineMatrix2D(1,0,0, 0,1,0),
36 : NULL),
37 : maDefaultRenderState(
38 : geometry::AffineMatrix2D(1,0,0, 0,1,0),
39 : NULL,
40 : Sequence<double>(4),
41 0 : rendering::CompositeOperation::SOURCE)
42 : {
43 0 : }
44 :
45 0 : PresenterCanvasHelper::~PresenterCanvasHelper()
46 : {
47 0 : }
48 :
49 0 : void PresenterCanvasHelper::Paint (
50 : const SharedBitmapDescriptor& rpBitmap,
51 : const css::uno::Reference<css::rendering::XCanvas>& rxCanvas,
52 : const css::awt::Rectangle& rRepaintBox,
53 : const css::awt::Rectangle& rOuterBoundingBox,
54 : const css::awt::Rectangle& rContentBoundingBox) const
55 : {
56 : PaintRectangle(rpBitmap,rxCanvas,rRepaintBox,rOuterBoundingBox,rContentBoundingBox,
57 0 : maDefaultViewState, maDefaultRenderState);
58 0 : }
59 :
60 0 : void PresenterCanvasHelper::PaintRectangle (
61 : const SharedBitmapDescriptor& rpBitmap,
62 : const css::uno::Reference<css::rendering::XCanvas>& rxCanvas,
63 : const css::awt::Rectangle& rRepaintBox,
64 : const css::awt::Rectangle& rOuterBoundingBox,
65 : const css::awt::Rectangle& rContentBoundingBox,
66 : const css::rendering::ViewState& rDefaultViewState,
67 : const css::rendering::RenderState& rDefaultRenderState)
68 : {
69 0 : if (rpBitmap.get() == NULL)
70 0 : return;
71 :
72 0 : if ( ! rxCanvas.is() || ! rxCanvas->getDevice().is())
73 0 : return;
74 :
75 : // Create a clip polypolygon that has the content box as hole.
76 0 : ::std::vector<awt::Rectangle> aRectangles;
77 0 : aRectangles.reserve(2);
78 : aRectangles.push_back(
79 0 : PresenterGeometryHelper::Intersection(rRepaintBox, rOuterBoundingBox));
80 0 : if (rContentBoundingBox.Width > 0 && rContentBoundingBox.Height > 0)
81 : aRectangles.push_back(
82 0 : PresenterGeometryHelper::Intersection(rRepaintBox, rContentBoundingBox));
83 : Reference<rendering::XPolyPolygon2D> xPolyPolygon (
84 : PresenterGeometryHelper::CreatePolygon(
85 : aRectangles,
86 0 : rxCanvas->getDevice()));
87 0 : if ( ! xPolyPolygon.is())
88 0 : return;
89 0 : xPolyPolygon->setFillRule(rendering::FillRule_EVEN_ODD);
90 :
91 0 : if (rpBitmap->GetNormalBitmap().is())
92 : {
93 0 : if (rpBitmap->meHorizontalTexturingMode == PresenterBitmapDescriptor::Repeat
94 0 : || rpBitmap->meVerticalTexturingMode == PresenterBitmapDescriptor::Repeat)
95 : {
96 : PaintTiledBitmap(
97 : Reference<rendering::XBitmap>(rpBitmap->GetNormalBitmap(), UNO_QUERY),
98 : rxCanvas,
99 : rRepaintBox,
100 : xPolyPolygon,
101 : rContentBoundingBox,
102 : rDefaultViewState,
103 0 : rDefaultRenderState);
104 : }
105 : else
106 : {
107 : PaintBitmap(
108 : Reference<rendering::XBitmap>(rpBitmap->GetNormalBitmap(), UNO_QUERY),
109 : awt::Point(rOuterBoundingBox.X, rOuterBoundingBox.Y),
110 : rxCanvas,
111 : rRepaintBox,
112 : xPolyPolygon,
113 : rDefaultViewState,
114 0 : rDefaultRenderState);
115 : }
116 : }
117 : else
118 : {
119 : PaintColor(
120 0 : rpBitmap->maReplacementColor,
121 : rxCanvas,
122 : rRepaintBox,
123 : xPolyPolygon,
124 : rDefaultViewState,
125 0 : rDefaultRenderState);
126 0 : }
127 : }
128 :
129 0 : void PresenterCanvasHelper::PaintTiledBitmap (
130 : const css::uno::Reference<css::rendering::XBitmap>& rxTexture,
131 : const css::uno::Reference<css::rendering::XCanvas>& rxCanvas,
132 : const css::awt::Rectangle& rRepaintBox,
133 : const css::uno::Reference<css::rendering::XPolyPolygon2D>& rxPolygon,
134 : const css::awt::Rectangle& rHole,
135 : const css::rendering::ViewState& rDefaultViewState,
136 : const css::rendering::RenderState& rDefaultRenderState)
137 : {
138 0 : if ( ! rxCanvas.is() || ! rxCanvas->getDevice().is())
139 0 : return;
140 :
141 0 : if ( ! rxTexture.is())
142 0 : return;
143 :
144 0 : if ( ! rxPolygon.is())
145 0 : return;
146 :
147 0 : rendering::ViewState aViewState (rDefaultViewState);
148 0 : aViewState.Clip = rxPolygon;
149 :
150 : // Create a local render state at which the location of the bitmap is
151 : // set.
152 0 : rendering::RenderState aRenderState (rDefaultRenderState);
153 :
154 : // Tile the bitmap over the repaint box.
155 0 : const geometry::IntegerSize2D aBitmapSize (rxTexture->getSize());
156 0 : if( aBitmapSize.Width < 1 || aBitmapSize.Height < 1)
157 0 : return;
158 :
159 0 : const sal_Int32 nLeft = (rRepaintBox.X / aBitmapSize.Width) * aBitmapSize.Width;
160 0 : const sal_Int32 nTop = (rRepaintBox.Y / aBitmapSize.Height) * aBitmapSize.Height;
161 0 : const sal_Int32 nRight = ((rRepaintBox.X + rRepaintBox.Width - 1 + aBitmapSize.Width - 1)
162 0 : / aBitmapSize.Width) * aBitmapSize.Width;
163 0 : const sal_Int32 nBottom = ((rRepaintBox.Y + rRepaintBox.Height - 1 + aBitmapSize.Height - 1)
164 0 : / aBitmapSize.Height) * aBitmapSize.Height;
165 :
166 0 : for (sal_Int32 nY=nTop; nY<=nBottom; nY+=aBitmapSize.Height)
167 0 : for (sal_Int32 nX=nLeft; nX<=nRight; nX+=aBitmapSize.Width)
168 : {
169 0 : if (PresenterGeometryHelper::IsInside(
170 : awt::Rectangle(nX,nY,aBitmapSize.Width,aBitmapSize.Height),
171 0 : rHole))
172 : {
173 0 : continue;
174 : }
175 0 : aRenderState.AffineTransform.m02 = nX;
176 0 : aRenderState.AffineTransform.m12 = nY;
177 0 : rxCanvas->drawBitmap(
178 : rxTexture,
179 : aViewState,
180 0 : aRenderState);
181 0 : }
182 : }
183 :
184 0 : void PresenterCanvasHelper::PaintBitmap (
185 : const css::uno::Reference<css::rendering::XBitmap>& rxBitmap,
186 : const awt::Point& rLocation,
187 : const css::uno::Reference<css::rendering::XCanvas>& rxCanvas,
188 : const css::awt::Rectangle& rRepaintBox,
189 : const css::uno::Reference<css::rendering::XPolyPolygon2D>& rxPolygon,
190 : const css::rendering::ViewState& rDefaultViewState,
191 : const css::rendering::RenderState& rDefaultRenderState)
192 : {
193 0 : if ( ! rxCanvas.is() || ! rxCanvas->getDevice().is())
194 0 : return;
195 :
196 0 : if ( ! rxBitmap.is())
197 0 : return;
198 :
199 0 : if ( ! rxPolygon.is())
200 0 : return;
201 :
202 : // Set the repaint box as clip rectangle at the view state.
203 0 : rendering::ViewState aViewState (rDefaultViewState);
204 0 : aViewState.Clip = PresenterGeometryHelper::CreatePolygon(rRepaintBox, rxCanvas->getDevice());
205 :
206 : // Setup the rendering state so that the bitmap is painted top left in
207 : // the polygon bounding box.
208 0 : rendering::RenderState aRenderState (rDefaultRenderState);
209 0 : aRenderState.AffineTransform = geometry::AffineMatrix2D(1,0, rLocation.X, 0,1,rLocation.Y);
210 0 : aRenderState.Clip = rxPolygon;
211 :
212 0 : rxCanvas->drawBitmap(
213 : rxBitmap,
214 : aViewState,
215 0 : aRenderState);
216 : }
217 :
218 0 : void PresenterCanvasHelper::PaintColor (
219 : const css::util::Color nColor,
220 : const css::uno::Reference<css::rendering::XCanvas>& rxCanvas,
221 : const css::awt::Rectangle& rRepaintBox,
222 : const css::uno::Reference<css::rendering::XPolyPolygon2D>& rxPolygon,
223 : const css::rendering::ViewState& rDefaultViewState,
224 : const css::rendering::RenderState& rDefaultRenderState)
225 : {
226 0 : if ( ! rxCanvas.is() || ! rxCanvas->getDevice().is())
227 0 : return;
228 :
229 0 : if ( ! rxPolygon.is())
230 0 : return;
231 :
232 : // Set the repaint box as clip rectangle at the view state.
233 0 : rendering::ViewState aViewState (rDefaultViewState);
234 0 : aViewState.Clip = PresenterGeometryHelper::CreatePolygon(rRepaintBox, rxCanvas->getDevice());
235 :
236 : // Setup the rendering state to use the given color.
237 0 : rendering::RenderState aRenderState (rDefaultRenderState);
238 0 : SetDeviceColor(aRenderState, nColor);
239 :
240 0 : rxCanvas->fillPolyPolygon(
241 : rxPolygon,
242 : aViewState,
243 0 : aRenderState);
244 : }
245 :
246 0 : void PresenterCanvasHelper::SetDeviceColor(
247 : rendering::RenderState& rRenderState,
248 : const util::Color aColor)
249 : {
250 : // Other component counts then 4 (RGBA) are not accepted (anymore).
251 :
252 : OSL_ASSERT(rRenderState.DeviceColor.getLength() == 4);
253 0 : if (rRenderState.DeviceColor.getLength() == 4)
254 : {
255 0 : rRenderState.DeviceColor[0] = ((aColor >> 16) & 0x0ff) / 255.0;
256 0 : rRenderState.DeviceColor[1] = ((aColor >> 8) & 0x0ff) / 255.0;
257 0 : rRenderState.DeviceColor[2] = ((aColor >> 0) & 0x0ff) / 255.0;
258 0 : rRenderState.DeviceColor[3] = 1.0 - ((aColor >> 24) & 0x0ff) / 255.0;
259 : }
260 0 : }
261 :
262 0 : css::geometry::RealRectangle2D PresenterCanvasHelper::GetTextBoundingBox (
263 : const css::uno::Reference<css::rendering::XCanvasFont>& rxFont,
264 : const OUString& rsText,
265 : const sal_Int8 nTextDirection)
266 : {
267 0 : if (rxFont.is() && !rsText.isEmpty())
268 : {
269 0 : rendering::StringContext aContext (rsText, 0, rsText.getLength());
270 : Reference<rendering::XTextLayout> xLayout (
271 0 : rxFont->createTextLayout(aContext, nTextDirection, 0));
272 0 : return xLayout->queryTextBounds();
273 : }
274 : else
275 : {
276 0 : return geometry::RealRectangle2D(0,0,0,0);
277 : }
278 : }
279 :
280 0 : css::geometry::RealSize2D PresenterCanvasHelper::GetTextSize (
281 : const css::uno::Reference<css::rendering::XCanvasFont>& rxFont,
282 : const OUString& rsText,
283 : const sal_Int8 nTextDirection)
284 : {
285 0 : const geometry::RealRectangle2D aTextBBox (GetTextBoundingBox(rxFont, rsText, nTextDirection));
286 0 : return css::geometry::RealSize2D(aTextBBox.X2 - aTextBBox.X1, aTextBBox.Y2 - aTextBBox.Y1);
287 : }
288 :
289 : } } // end of namespace sdext::presenter
290 :
291 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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