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1 /*
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2 TouchKeys: multi-touch musical keyboard control software
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3 Copyright (c) 2013 Andrew McPherson
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4
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5 This program is free software: you can redistribute it and/or modify
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6 it under the terms of the GNU General Public License as published by
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7 the Free Software Foundation, either version 3 of the License, or
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8 (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 You should have received a copy of the GNU General Public License
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16 along with this program. If not, see <http://www.gnu.org/licenses/>.
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17
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18 =====================================================================
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19
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20 OpenGLJuceCanvas.h: Juce Component subclass which connects to the
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21 OpenGLDisplayBase class. Provides a generic interface between Juce and
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22 the specific OpenGL renderer.
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23 */
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24
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25 #ifndef __TouchKeys__OpenGLJuceCanvas__
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26 #define __TouchKeys__OpenGLJuceCanvas__
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27
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28 #include "../JuceLibraryCode/JuceHeader.h"
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29 #include "OpenGLDisplayBase.h"
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30
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31 #if JUCE_OPENGL
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32
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33 //==============================================================================
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34 class OpenGLJuceCanvas : public Component,
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35 public OpenGLRenderer
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36 {
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37 public:
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38 // *** Constructor / Destructor ***
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39 OpenGLJuceCanvas(OpenGLDisplayBase& display) : display_(display) {
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40 openGLContext_.setRenderer (this);
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41 openGLContext_.setComponentPaintingEnabled (false);
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42 // Funny OpenGL bugs in Linux version that results in improper drawing when in background
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43 // For other OSes, save the cycles of continuous repainting.
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44 if(SystemStats::getOperatingSystemType() == SystemStats::Linux)
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45 openGLContext_.setContinuousRepainting (true);
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46 else
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47 openGLContext_.setContinuousRepainting (false);
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48 openGLContext_.attachTo (*this);
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49 display_.setCanvas(this);
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50 }
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51 ~OpenGLJuceCanvas() {
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52 openGLContext_.detach();
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53 }
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54
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55 // *** OpenGL Context Methods ***
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56 void newOpenGLContextCreated() {}
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57 void openGLContextClosing() {}
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58
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59 void mouseDown (const MouseEvent& e) {
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60 if(e.mods.isLeftButtonDown())
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61 display_.mouseDown(e.x, e.y);
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62 else if(e.mods.isRightButtonDown())
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63 display_.rightMouseDown(e.x, e.y);
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64 }
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65
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66 void mouseDrag (const MouseEvent& e) {
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67 if(e.mods.isLeftButtonDown())
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68 display_.mouseDragged(e.x, e.y);
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69 else if(e.mods.isRightButtonDown())
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70 display_.rightMouseDragged(e.x, e.y);
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71 }
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72
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73 void mouseUp (const MouseEvent& e) {
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74 if(e.mods.isLeftButtonDown())
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75 display_.mouseUp(e.x, e.y);
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76 else if(e.mods.isRightButtonDown())
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77 display_.rightMouseUp(e.x, e.y);
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78 }
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79
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80
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81 void resized() {
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82 display_.setDisplaySize(getWidth(), getHeight());
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83 }
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84
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85 void paint (Graphics&) {}
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86
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87 void renderOpenGL() {
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88 display_.render();
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89 }
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90
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91 // Method to tell the OpenGLContext to repaint
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92 void triggerRepaint() {
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93 openGLContext_.triggerRepaint();
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94 }
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95
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96 private:
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97 OpenGLDisplayBase& display_; // Reference to the TouchKeys-specific OpenGL Display
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98 OpenGLContext openGLContext_;
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99 };
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100
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101 #endif /* JUCE_OPENGL */
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102
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103 #endif /* defined(__TouchKeys__OpenGLJuceCanvas__) */
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