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annotate DPF-Prymula-audioplugins/dpf/dgl/Base.hpp @ 3:84e66ea83026

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DPF-Prymula-audioplugins-0.231015-2
author prymula <prymula76@outlook.com>
date Mon, 16 Oct 2023 21:53:34 +0200
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children
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3
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1 /*
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2 * DISTRHO Plugin Framework (DPF)
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3 * Copyright (C) 2012-2022 Filipe Coelho <falktx@falktx.com>
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4 *
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5 * Permission to use, copy, modify, and/or distribute this software for any purpose with
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6 * or without fee is hereby granted, provided that the above copyright notice and this
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7 * permission notice appear in all copies.
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8 *
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9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
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10 * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
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11 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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12 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
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13 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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15 */
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16
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17 #ifndef DGL_BASE_HPP_INCLUDED
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18 #define DGL_BASE_HPP_INCLUDED
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19
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20 #include "../distrho/extra/LeakDetector.hpp"
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21 #include "../distrho/extra/ScopedPointer.hpp"
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22
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23 // --------------------------------------------------------------------------------------------------------------------
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24 // Define namespace
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25
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26 #ifndef DGL_NAMESPACE
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27 # define DGL_NAMESPACE DGL
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28 #endif
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29
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30 #define START_NAMESPACE_DGL namespace DGL_NAMESPACE {
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31 #define END_NAMESPACE_DGL }
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32 #define USE_NAMESPACE_DGL using namespace DGL_NAMESPACE;
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33
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34 START_NAMESPACE_DGL
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35
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36 // --------------------------------------------------------------------------------------------------------------------
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37 // Base DGL enums
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38
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39 /**
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40 Keyboard modifier flags.
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41 */
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42 enum Modifier {
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43 kModifierShift = 1u << 0u, ///< Shift key
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44 kModifierControl = 1u << 1u, ///< Control key
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45 kModifierAlt = 1u << 2u, ///< Alt/Option key
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46 kModifierSuper = 1u << 3u ///< Mod4/Command/Windows key
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47 };
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48
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49 /**
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50 Keyboard key codepoints.
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51
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52 All keys are identified by a Unicode code point in Widget::KeyboardEvent::key.
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53 This enumeration defines constants for special keys that do not have a standard
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54 code point, and some convenience constants for control characters.
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55 Note that all keys are handled in the same way, this enumeration is just for
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56 convenience when writing hard-coded key bindings.
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57
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58 Keys that do not have a standard code point use values in the Private Use
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59 Area in the Basic Multilingual Plane (`U+E000` to `U+F8FF`).
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60 Applications must take care to not interpret these values beyond key detection,
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61 the mapping used here is arbitrary and specific to DPF.
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62 */
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63 enum Key {
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64 // Convenience symbols for ASCII control characters
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65 kKeyBackspace = 0x08,
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66 kKeyEscape = 0x1B,
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67 kKeyDelete = 0x7F,
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68
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69 // Backwards compatibility with old DPF
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70 kCharBackspace DISTRHO_DEPRECATED_BY("kKeyBackspace") = kKeyBackspace,
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71 kCharEscape DISTRHO_DEPRECATED_BY("kKeyEscape") = kKeyEscape,
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72 kCharDelete DISTRHO_DEPRECATED_BY("kKeyDelete") = kKeyDelete,
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73
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74 // Unicode Private Use Area
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75 kKeyF1 = 0xE000,
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76 kKeyF2,
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77 kKeyF3,
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78 kKeyF4,
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79 kKeyF5,
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80 kKeyF6,
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81 kKeyF7,
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82 kKeyF8,
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83 kKeyF9,
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84 kKeyF10,
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85 kKeyF11,
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86 kKeyF12,
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87 kKeyLeft,
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88 kKeyUp,
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89 kKeyRight,
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90 kKeyDown,
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91 kKeyPageUp,
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92 kKeyPageDown,
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93 kKeyHome,
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94 kKeyEnd,
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95 kKeyInsert,
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96 kKeyShift,
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97 kKeyShiftL = kKeyShift,
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98 kKeyShiftR,
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99 kKeyControl,
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100 kKeyControlL = kKeyControl,
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101 kKeyControlR,
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102 kKeyAlt,
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103 kKeyAltL = kKeyAlt,
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104 kKeyAltR,
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105 kKeySuper,
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106 kKeySuperL = kKeySuper,
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107 kKeySuperR,
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108 kKeyMenu,
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109 kKeyCapsLock,
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110 kKeyScrollLock,
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111 kKeyNumLock,
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112 kKeyPrintScreen,
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113 kKeyPause
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114 };
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115
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116 /**
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117 Common flags for all events.
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118 */
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119 enum EventFlag {
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120 kFlagSendEvent = 1, ///< Event is synthetic
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121 kFlagIsHint = 2 ///< Event is a hint (not direct user input)
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122 };
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123
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124 /**
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125 Reason for a crossing event.
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126 */
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127 enum CrossingMode {
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128 kCrossingNormal, ///< Crossing due to pointer motion
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129 kCrossingGrab, ///< Crossing due to a grab
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130 kCrossingUngrab ///< Crossing due to a grab release
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131 };
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132
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133 /**
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134 A mouse button.
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135
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136 Mouse button numbers start from 1, and are ordered: primary, secondary, middle.
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137 So, on a typical right-handed mouse, the button numbers are:
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138
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139 Left: 1
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140 Right: 2
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141 Middle (often a wheel): 3
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142
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143 Higher button numbers are reported in the same order they are represented on the system.
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144 There is no universal standard here, but buttons 4 and 5 are typically a pair of buttons or a rocker,
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145 which are usually bound to "back" and "forward" operations.
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146
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147 Note that these numbers may differ from those used on the underlying
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148 platform, since they are manipulated to provide a consistent portable API.
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149 */
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150 enum MouseButton {
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151 kMouseButtonLeft = 1,
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152 kMouseButtonRight,
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153 kMouseButtonMiddle,
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154 };
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155
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156 /**
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157 A mouse cursor type.
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158
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159 This is a portable subset of mouse cursors that exist on X11, MacOS, and Windows.
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160 */
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161 enum MouseCursor {
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162 kMouseCursorArrow, ///< Default pointing arrow
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163 kMouseCursorCaret, ///< Caret (I-Beam) for text entry
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164 kMouseCursorCrosshair, ///< Cross-hair
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165 kMouseCursorHand, ///< Hand with a pointing finger
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166 kMouseCursorNotAllowed, ///< Operation not allowed
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167 kMouseCursorLeftRight, ///< Left/right arrow for horizontal resize
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168 kMouseCursorUpDown, ///< Up/down arrow for vertical resize
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169 kMouseCursorDiagonal, ///< Top-left to bottom-right arrow for diagonal resize
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170 kMouseCursorAntiDiagonal ///< Bottom-left to top-right arrow for diagonal resize
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171 };
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172
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173 /**
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174 Scroll direction.
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175
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176 Describes the direction of a scroll event along with whether the scroll is a "smooth" scroll.
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177 The discrete directions are for devices like mouse wheels with constrained axes,
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178 while a smooth scroll is for those with arbitrary scroll direction freedom, like some touchpads.
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179 */
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180 enum ScrollDirection {
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181 kScrollUp, ///< Scroll up
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182 kScrollDown, ///< Scroll down
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183 kScrollLeft, ///< Scroll left
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184 kScrollRight, ///< Scroll right
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185 kScrollSmooth ///< Smooth scroll in any direction
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186 };
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187
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188 /**
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189 A clipboard data offer.
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190 @see Window::onClipboardDataOffer
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191 */
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192 struct ClipboardDataOffer {
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193 /**
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194 The id of this data offer.
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195 @note The value 0 is reserved for null/invalid.
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196 */
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197 uint32_t id;
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198
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199 /**
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200 The type of this data offer.
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201 Usually a MIME type, but may also be another platform-specific type identifier.
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202 */
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203 const char* type;
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204 };
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205
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206 // --------------------------------------------------------------------------------------------------------------------
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207 // Base DGL classes
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208
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209 /**
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210 Graphics context, definition depends on build type.
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211 */
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212 struct GraphicsContext {};
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213
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214 /**
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215 Idle callback.
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216 */
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217 struct IdleCallback
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218 {
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219 virtual ~IdleCallback() {}
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220 virtual void idleCallback() = 0;
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221 };
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222
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223 // --------------------------------------------------------------------------------------------------------------------
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224
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225 END_NAMESPACE_DGL
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226
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227 #ifndef DONT_SET_USING_DGL_NAMESPACE
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228 // If your code uses a lot of DGL classes, then this will obviously save you
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229 // a lot of typing, but can be disabled by setting DONT_SET_USING_DGL_NAMESPACE.
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230 using namespace DGL_NAMESPACE;
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231 #endif
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232
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233 // --------------------------------------------------------------------------------------------------------------------
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234
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235 #endif // DGL_BASE_HPP_INCLUDED