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comparison Framework/Scene2D/CairoCompositor.h @ 597:9e51fb773bbd

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CairoCompositor
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 26 Apr 2019 17:28:18 +0200
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children 6129b1e5ba42
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596:b716763571ad 597:9e51fb773bbd
1 /**
2 * Stone of Orthanc
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2019 Osimis S.A., Belgium
6 *
7 * This program is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU Affero General Public License
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
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Affero General Public License for more details.
16 *
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 **/
20
21
22 #pragma once
23
24 #include "../Fonts/GlyphBitmapAlphabet.h"
25 #include "../Viewport/CairoContext.h"
26 #include "Internals/CompositorHelper.h"
27 #include "Internals/ICairoContextProvider.h"
28
29 namespace OrthancStone
30 {
31 class CairoCompositor :
32 private Internals::CompositorHelper::IRendererFactory,
33 private Internals::ICairoContextProvider
34 {
35 private:
36 typedef std::map<size_t, GlyphBitmapAlphabet*> Fonts;
37
38 Internals::CompositorHelper helper_;
39 CairoSurface canvas_;
40 Fonts fonts_;
41
42 // Only valid during a call to "Refresh()"
43 std::auto_ptr<CairoContext> context_;
44
45 virtual cairo_t* GetCairoContext();
46
47 virtual unsigned int GetCairoWidth()
48 {
49 return canvas_.GetWidth();
50 }
51
52 virtual unsigned int GetCairoHeight()
53 {
54 return canvas_.GetHeight();
55 }
56
57 virtual Internals::CompositorHelper::ILayerRenderer* Create(const ISceneLayer& layer);
58
59 public:
60 CairoCompositor(Scene2D& scene,
61 unsigned int canvasWidth,
62 unsigned int canvasHeight);
63
64 ~CairoCompositor();
65
66 const CairoSurface& GetCanvas() const
67 {
68 return canvas_;
69 }
70
71 void SetFont(size_t index,
72 GlyphBitmapAlphabet* dict); // Takes ownership
73
74 #if ORTHANC_ENABLE_LOCALE == 1
75 void SetFont(size_t index,
76 Orthanc::EmbeddedResources::FileResourceId resource,
77 unsigned int fontSize,
78 Orthanc::Encoding codepage);
79 #endif
80
81 void Refresh();
82
83 Orthanc::ImageAccessor* RenderText(size_t fontIndex,
84 const std::string& utf8) const;
85 };
86 }