Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Scene2D/Internals/CairoColorTextureRenderer.cpp @ 1739:9ac2a65d4172
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 06 Jan 2021 17:50:00 +0100 |
| parents | 8563ea5d8ae4 |
| children | 3889ae96d2e9 |
| rev | line source |
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| 597 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium |
| 597 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
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8 * modify it under the terms of the GNU Lesser General Public License |
| 597 | 9 * as published by the Free Software Foundation, either version 3 of |
| 10 * the License, or (at your option) any later version. | |
| 11 * | |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 * Lesser General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU Lesser General Public |
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18 * License along with this program. If not, see |
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19 * <http://www.gnu.org/licenses/>. |
| 597 | 20 **/ |
| 21 | |
| 22 | |
| 23 #include "CairoColorTextureRenderer.h" | |
| 24 | |
| 25 #include "../ColorTextureSceneLayer.h" | |
| 26 | |
| 27 namespace OrthancStone | |
| 28 { | |
| 29 namespace Internals | |
| 30 { | |
| 31 CairoColorTextureRenderer::CairoColorTextureRenderer(ICairoContextProvider& target, | |
| 32 const ISceneLayer& layer) : | |
| 33 target_(target) | |
| 34 { | |
| 35 Update(layer); | |
| 36 } | |
| 37 | |
| 38 | |
| 39 void CairoColorTextureRenderer::Update(const ISceneLayer& layer) | |
| 40 { | |
| 41 const ColorTextureSceneLayer& l = dynamic_cast<const ColorTextureSceneLayer&>(layer); | |
| 42 | |
| 43 texture_.Copy(l.GetTexture(), true); | |
| 44 textureTransform_ = l.GetTransform(); | |
| 45 isLinearInterpolation_ = l.IsLinearInterpolation(); | |
| 46 } | |
| 47 | |
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48 |
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49 void CairoColorTextureRenderer::RenderColorTexture(ICairoContextProvider& target, |
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50 const AffineTransform2D& transform, |
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51 CairoSurface& texture, |
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52 const AffineTransform2D& textureTransform, |
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53 bool isLinearInterpolation) |
| 597 | 54 { |
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55 cairo_t* cr = target.GetCairoContext(); |
| 597 | 56 |
| 57 AffineTransform2D t = | |
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58 AffineTransform2D::Combine(transform, textureTransform); |
| 597 | 59 Matrix h = t.GetHomogeneousMatrix(); |
| 60 | |
| 61 cairo_save(cr); | |
| 62 | |
| 63 cairo_matrix_t m; | |
| 64 cairo_matrix_init(&m, h(0, 0), h(1, 0), h(0, 1), h(1, 1), h(0, 2), h(1, 2)); | |
| 65 cairo_transform(cr, &m); | |
| 66 | |
| 67 cairo_set_operator(cr, CAIRO_OPERATOR_OVER); | |
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68 cairo_set_source_surface(cr, texture.GetObject(), 0, 0); |
| 597 | 69 |
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70 if (isLinearInterpolation) |
| 597 | 71 { |
| 72 cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_BILINEAR); | |
| 73 } | |
| 74 else | |
| 75 { | |
| 76 cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_NEAREST); | |
| 77 } | |
| 78 | |
| 79 cairo_paint(cr); | |
| 80 | |
| 81 cairo_restore(cr); | |
| 82 } | |
| 83 } | |
| 84 } |