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Carla/source/libs/distrho/DistrhoUI.hpp

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  1. /*

  2.  * DISTRHO Plugin Toolkit (DPT)

  3.  * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>

  4.  *

  5.  * This program is free software; you can redistribute it and/or

  6.  * modify it under the terms of the GNU Lesser General Public

  7.  * License as published by the Free Software Foundation.

  8.  *

  9.  * This program is distributed in the hope that it will be useful,

  10.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  11.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

  12.  * GNU Lesser General Public License for more details.

  13.  *

  14.  * For a full copy of the license see the LGPL.txt file

  15.  */

  16. 

  17. #ifndef __DISTRHO_UI_HPP__

  18. #define __DISTRHO_UI_HPP__

  19. 

  20. #include "DistrhoUtils.hpp"

  21. 

  22. START_NAMESPACE_DISTRHO

  23. 

  24. // -------------------------------------------------

  25. // UI

  26. 

  27. class UI

  28. {

  29. public:

  30.     UI();

  31.     virtual ~UI();

  32. 

  33.     // ---------------------------------------------

  34.     // Host DSP State

  35. 

  36.     double d_sampleRate() const;

  37.     void   d_editParameter(uint32_t index, bool started);

  38.     void   d_setParameterValue(uint32_t index, float value);

  39. #if DISTRHO_PLUGIN_WANT_STATE

  40.     void   d_setState(const char* key, const char* value);

  41. #endif

  42. #if DISTRHO_PLUGIN_IS_SYNTH

  43.     void   d_sendNote(bool onOff, uint8_t channel, uint8_t note, uint8_t velocity);

  44. #endif

  45. 

  46.     // ---------------------------------------------

  47.     // Host UI State

  48. 

  49.     void d_uiResize(unsigned int width, unsigned int height);

  50. 

  51. protected:

  52.     // ---------------------------------------------

  53.     // Information

  54. 

  55.     virtual const char*  d_name() const { return DISTRHO_PLUGIN_NAME; }

  56.     virtual unsigned int d_width() const = 0;

  57.     virtual unsigned int d_height() const = 0;

  58. 

  59.     // ---------------------------------------------

  60.     // DSP Callbacks

  61. 

  62.     virtual void d_parameterChanged(uint32_t index, float value) = 0;

  63. #if DISTRHO_PLUGIN_WANT_PROGRAMS

  64.     virtual void d_programChanged(uint32_t index) = 0;

  65. #endif

  66. #if DISTRHO_PLUGIN_WANT_STATE

  67.     virtual void d_stateChanged(const char* key, const char* value) = 0;

  68. #endif

  69. #if DISTRHO_PLUGIN_IS_SYNTH

  70.     virtual void d_noteReceived(bool onOff, uint8_t channel, uint8_t note, uint8_t velocity) = 0;

  71. #endif

  72. 

  73.     // ---------------------------------------------

  74.     // UI Callbacks

  75. 

  76.     virtual void d_uiIdle() = 0;

  77. 

  78.     // ---------------------------------------------

  79. 

  80. private:

  81.     struct PrivateData;

  82.     PrivateData* const pData;

  83.     friend class UIInternal;

  84. };

  85. 

  86. // -------------------------------------------------

  87. 

  88. UI* createUI();

  89. 

  90. // -------------------------------------------------

  91. 

  92. END_NAMESPACE_DISTRHO

  93. 

  94. #endif // __DISTRHO_UI_HPP__