1 | /*
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2 | -----------------------------------------------------------------------------
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3 | This source file is part of OGRE
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4 | (Object-oriented Graphics Rendering Engine)
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5 | For the latest info, see http://www.ogre3d.org/
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6 |
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7 | Copyright (c) 2000-2005 The OGRE Team
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8 | Also see acknowledgements in Readme.html
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9 |
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10 | This program is free software; you can redistribute it and/or modify it under
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11 | the terms of the GNU Lesser General Public License as published by the Free Software
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12 | Foundation; either version 2 of the License, or (at your option) any later
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13 | version.
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14 |
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15 | This program is distributed in the hope that it will be useful, but WITHOUT
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16 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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17 | FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
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18 |
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19 | You should have received a copy of the GNU Lesser General Public License along with
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20 | this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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21 | Place - Suite 330, Boston, MA 02111-1307, USA, or go to
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22 | http://www.gnu.org/copyleft/lesser.txt.
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23 | -----------------------------------------------------------------------------
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24 | */
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25 |
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26 | #include "OgreGLXInput.h"
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27 | #include "OgreLogManager.h"
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28 | #include "OgreMouseEvent.h"
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29 | #include "OgreCursor.h"
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30 |
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31 | #include "OgreGLXWindow.h"
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32 |
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33 | #include <X11/Xlib.h>
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34 | #include <X11/Xutil.h>
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35 | #include <X11/keysym.h>
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36 |
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37 | namespace Ogre {
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38 |
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39 | GLXInput::GLXInput()
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40 | : InputReader()
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41 | {
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42 | mEventQueue = 0;
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43 | mMouseScale = 0.002f;
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44 |
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45 | _key_map.insert(InputKeyMap::value_type(XK_Escape,KC_ESCAPE));
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46 | _key_map.insert(InputKeyMap::value_type(XK_1, KC_1));
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47 | _key_map.insert(InputKeyMap::value_type(XK_2, KC_2));
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48 | _key_map.insert(InputKeyMap::value_type(XK_3, KC_3));
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49 | _key_map.insert(InputKeyMap::value_type(XK_4, KC_4));
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50 | _key_map.insert(InputKeyMap::value_type(XK_5, KC_5));
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51 | _key_map.insert(InputKeyMap::value_type(XK_6, KC_6));
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52 | _key_map.insert(InputKeyMap::value_type(XK_7, KC_7));
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53 | _key_map.insert(InputKeyMap::value_type(XK_8, KC_8));
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54 | _key_map.insert(InputKeyMap::value_type(XK_9, KC_9));
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55 | _key_map.insert(InputKeyMap::value_type(XK_0, KC_0));
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56 | _key_map.insert(InputKeyMap::value_type(XK_minus, KC_MINUS));
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57 | _key_map.insert(InputKeyMap::value_type(XK_equal, KC_EQUALS));
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58 | _key_map.insert(InputKeyMap::value_type(XK_BackSpace, KC_BACK));
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59 | _key_map.insert(InputKeyMap::value_type(XK_Tab, KC_TAB));
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60 | _key_map.insert(InputKeyMap::value_type(XK_q, KC_Q));
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61 | _key_map.insert(InputKeyMap::value_type(XK_w, KC_W));
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62 | _key_map.insert(InputKeyMap::value_type(XK_e, KC_E));
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63 | _key_map.insert(InputKeyMap::value_type(XK_r, KC_R));
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64 | _key_map.insert(InputKeyMap::value_type(XK_t, KC_T));
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65 | _key_map.insert(InputKeyMap::value_type(XK_y, KC_Y));
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66 | _key_map.insert(InputKeyMap::value_type(XK_u, KC_U));
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67 | _key_map.insert(InputKeyMap::value_type(XK_i, KC_I));
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68 | _key_map.insert(InputKeyMap::value_type(XK_o, KC_O));
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69 | _key_map.insert(InputKeyMap::value_type(XK_p, KC_P));
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70 | _key_map.insert(InputKeyMap::value_type(XK_Return, KC_RETURN));
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71 | _key_map.insert(InputKeyMap::value_type(XK_Control_L, KC_LCONTROL));
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72 | _key_map.insert(InputKeyMap::value_type(XK_a, KC_A));
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73 | _key_map.insert(InputKeyMap::value_type(XK_s, KC_S));
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74 | _key_map.insert(InputKeyMap::value_type(XK_d, KC_D));
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75 | _key_map.insert(InputKeyMap::value_type(XK_f, KC_F));
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76 | _key_map.insert(InputKeyMap::value_type(XK_g, KC_G));
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77 | _key_map.insert(InputKeyMap::value_type(XK_h, KC_H));
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78 | _key_map.insert(InputKeyMap::value_type(XK_j, KC_J));
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79 | _key_map.insert(InputKeyMap::value_type(XK_k, KC_K));
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80 | _key_map.insert(InputKeyMap::value_type(XK_l, KC_L));
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81 | _key_map.insert(InputKeyMap::value_type(XK_semicolon, KC_SEMICOLON));
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82 | _key_map.insert(InputKeyMap::value_type(XK_colon, KC_COLON));
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83 | _key_map.insert(InputKeyMap::value_type(XK_apostrophe, KC_APOSTROPHE));
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84 | _key_map.insert(InputKeyMap::value_type(XK_grave, KC_GRAVE));
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85 | _key_map.insert(InputKeyMap::value_type(XK_Shift_L, KC_LSHIFT));
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86 | _key_map.insert(InputKeyMap::value_type(XK_backslash, KC_BACKSLASH));
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87 | _key_map.insert(InputKeyMap::value_type(XK_z, KC_Z));
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88 | _key_map.insert(InputKeyMap::value_type(XK_x, KC_X));
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89 | _key_map.insert(InputKeyMap::value_type(XK_c, KC_C));
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90 | _key_map.insert(InputKeyMap::value_type(XK_v, KC_V));
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91 | _key_map.insert(InputKeyMap::value_type(XK_b, KC_B));
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92 | _key_map.insert(InputKeyMap::value_type(XK_n, KC_N));
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93 | _key_map.insert(InputKeyMap::value_type(XK_m, KC_M));
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94 | _key_map.insert(InputKeyMap::value_type(XK_comma, KC_COMMA));
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95 | _key_map.insert(InputKeyMap::value_type(XK_period, KC_PERIOD));
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96 | _key_map.insert(InputKeyMap::value_type(XK_Shift_R, KC_RSHIFT));
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97 | _key_map.insert(InputKeyMap::value_type(XK_KP_Multiply, KC_MULTIPLY));
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98 | _key_map.insert(InputKeyMap::value_type(XK_Alt_L, KC_LMENU)); // ?
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99 | _key_map.insert(InputKeyMap::value_type(XK_space, KC_SPACE));
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100 | _key_map.insert(InputKeyMap::value_type(XK_Escape, KC_CAPITAL));
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101 | _key_map.insert(InputKeyMap::value_type(XK_F1, KC_F1));
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102 | _key_map.insert(InputKeyMap::value_type(XK_F2, KC_F2));
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103 | _key_map.insert(InputKeyMap::value_type(XK_F3, KC_F3));
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104 | _key_map.insert(InputKeyMap::value_type(XK_F4, KC_F4));
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105 | _key_map.insert(InputKeyMap::value_type(XK_F5, KC_F5));
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106 | _key_map.insert(InputKeyMap::value_type(XK_F6, KC_F6));
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107 | _key_map.insert(InputKeyMap::value_type(XK_F7, KC_F7));
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108 | _key_map.insert(InputKeyMap::value_type(XK_F8, KC_F8));
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109 | _key_map.insert(InputKeyMap::value_type(XK_F9, KC_F9));
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110 | _key_map.insert(InputKeyMap::value_type(XK_F10, KC_F10));
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111 | _key_map.insert(InputKeyMap::value_type(XK_Num_Lock, KC_NUMLOCK));
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112 | _key_map.insert(InputKeyMap::value_type(XK_Scroll_Lock, KC_SCROLL));
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113 | _key_map.insert(InputKeyMap::value_type(XK_KP_7, KC_NUMPAD7));
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114 | _key_map.insert(InputKeyMap::value_type(XK_KP_8, KC_NUMPAD8));
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115 | _key_map.insert(InputKeyMap::value_type(XK_KP_9, KC_NUMPAD9));
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116 | _key_map.insert(InputKeyMap::value_type(XK_KP_Subtract, KC_SUBTRACT));
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117 | _key_map.insert(InputKeyMap::value_type(XK_KP_4, KC_NUMPAD4));
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118 | _key_map.insert(InputKeyMap::value_type(XK_KP_5, KC_NUMPAD5));
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119 | _key_map.insert(InputKeyMap::value_type(XK_KP_6, KC_NUMPAD6));
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120 | _key_map.insert(InputKeyMap::value_type(XK_KP_Add, KC_ADD));
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121 | _key_map.insert(InputKeyMap::value_type(XK_KP_1, KC_NUMPAD1));
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122 | _key_map.insert(InputKeyMap::value_type(XK_KP_2, KC_NUMPAD2));
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123 | _key_map.insert(InputKeyMap::value_type(XK_KP_3, KC_NUMPAD3));
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124 | _key_map.insert(InputKeyMap::value_type(XK_KP_0, KC_NUMPAD0));
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125 | _key_map.insert(InputKeyMap::value_type(XK_KP_Decimal, KC_DECIMAL));
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126 | _key_map.insert(InputKeyMap::value_type(XK_F11, KC_F11));
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127 | _key_map.insert(InputKeyMap::value_type(XK_F12, KC_F12));
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128 | _key_map.insert(InputKeyMap::value_type(XK_F13, KC_F13));
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129 | _key_map.insert(InputKeyMap::value_type(XK_F14, KC_F14));
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130 | _key_map.insert(InputKeyMap::value_type(XK_F15, KC_F15));
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131 | _key_map.insert(InputKeyMap::value_type(XK_KP_Equal, KC_NUMPADEQUALS));
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132 | _key_map.insert(InputKeyMap::value_type(XK_KP_Divide, KC_DIVIDE));
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133 | _key_map.insert(InputKeyMap::value_type(XK_Print, KC_SYSRQ));
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134 | _key_map.insert(InputKeyMap::value_type(XK_Alt_R, KC_RMENU)); // ?
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135 | _key_map.insert(InputKeyMap::value_type(XK_Home, KC_HOME));
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136 | _key_map.insert(InputKeyMap::value_type(XK_Up, KC_UP));
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137 | _key_map.insert(InputKeyMap::value_type(XK_Page_Up, KC_PGUP));
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138 | _key_map.insert(InputKeyMap::value_type(XK_Left, KC_LEFT));
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139 | _key_map.insert(InputKeyMap::value_type(XK_Right, KC_RIGHT));
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140 | _key_map.insert(InputKeyMap::value_type(XK_End, KC_END));
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141 | _key_map.insert(InputKeyMap::value_type(XK_Down, KC_DOWN));
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142 | _key_map.insert(InputKeyMap::value_type(XK_Page_Down, KC_PGDOWN));
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143 | _key_map.insert(InputKeyMap::value_type(XK_Insert, KC_INSERT));
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144 | _key_map.insert(InputKeyMap::value_type(XK_Delete, KC_DELETE));
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145 | _key_map.insert(InputKeyMap::value_type(XK_Super_L, KC_LWIN)); // ?
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146 | _key_map.insert(InputKeyMap::value_type(XK_Super_R, KC_RWIN)); // ?
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147 | }
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148 |
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149 | GLXInput::~GLXInput() {
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150 | GrabCursor(false);
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151 | XFreeCursor(mDisplay, mHiddenCursor);
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152 | }
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153 |
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154 | void GLXInput::initialise(RenderWindow* pWindow, bool useKeyboard, bool useMouse, bool useGameController) {
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155 | mRenderWindow = pWindow;
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156 | captureMouse = useMouse;
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157 |
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158 | // Extract Window and Display from pWindow in magic way
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159 | // This also raises an exception if it is not an GLXRenderWindow
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160 | pWindow->getCustomAttribute("GLXWINDOW", &mWindow);
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161 | pWindow->getCustomAttribute("GLXDISPLAY", &mDisplay);
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162 |
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163 | //Change input mask to reflect the fact that we want input events (the rendersystem only requests window
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164 | //events)
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165 | XSelectInput(mDisplay, mWindow, StructureNotifyMask | KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask );
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166 |
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167 | // Create hidden cursor
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168 | // X offers no standard support for this so we need to create a blank pixmap.
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169 | Pixmap blank_pixmap = XCreatePixmap(mDisplay, mWindow, 1, 1, 1);
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170 | GC gc = XCreateGC(mDisplay, blank_pixmap, (unsigned long)0, (XGCValues*)0);
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171 | XDrawPoint(mDisplay, blank_pixmap, gc, 0, 0);
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172 | XFreeGC(mDisplay, gc);
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173 | XColor color;
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174 | color.flags = DoRed | DoGreen | DoBlue;
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175 | color.red = color.blue = color.green = 0;
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176 | mHiddenCursor = XCreatePixmapCursor(mDisplay, blank_pixmap, blank_pixmap, &color, &color, 0, 0);
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177 | XFreePixmap(mDisplay, blank_pixmap);
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178 |
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179 | // Mousey stuff
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180 | warpMouse = false;
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181 | GrabCursor(true);
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182 |
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183 | // Get the center and put the mouse there
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184 | unsigned int width, height, depth;
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185 | int left, top;
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186 | pWindow->getMetrics(width, height, depth, left, top);
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187 |
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188 | mMouseState.Buttons = 0;
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189 | mouseLastX = mMouseState.Xabs = width / 2;
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190 | mouseLastY = mMouseState.Yabs = height / 2;
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191 | mMouseState.Zabs = 0;
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192 | mMouseState.Xrel = 0;
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193 | mMouseState.Yrel = 0;
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194 | mMouseState.Zrel = 0;
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195 | }
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196 |
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197 | void GLXInput::capture() {
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198 | GLXWindow *w = static_cast<GLXWindow*>(mRenderWindow);
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199 | KeySym key;
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200 | KeyCode ogrekey;
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201 | XEvent event;
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202 |
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203 | mMouseState.Xrel = 0;
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204 | mMouseState.Yrel = 0;
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205 | mMouseState.Zrel = 0;
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206 |
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207 | bool hasMouseMoved = false;
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208 |
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209 | // Process X events until event pump exhausted
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210 | while(XPending(mDisplay) > 0) {
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211 | XNextEvent(mDisplay,&event);
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212 |
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213 | // Give window a shot as processing the event
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214 | // TODO: call for every window
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215 | w->injectXEvent(event);
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216 |
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217 | int button_mask = -1;
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218 | int button_bits = 0;
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219 | bool button_down = false;
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220 | switch(event.type) {
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221 | case KeyPress:
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222 | // Ignore shift and capslock state
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223 | event.xkey.state &= ~ShiftMask;
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224 | event.xkey.state &= ~LockMask;
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225 |
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226 | XLookupString(&event.xkey,NULL,0,&key,NULL);
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227 | // Ctrl-Escape should free mouse ala Q****
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228 | // Alt-TAB should free mouse ala SDL
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229 | if((event.xkey.state & ControlMask && key == XK_Escape)
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230 | ||(event.xkey.state & Mod1Mask && key == XK_Tab)) {
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231 | GrabCursor(false);
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232 | break;
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233 | }
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234 |
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235 | ogrekey = _key_map[key]; // key
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236 |
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237 | // Unbuffered input
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238 | _key_pressed_set.insert(ogrekey);
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239 |
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240 | // Buffered input
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241 | if(mUseBufferedKeys)
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242 | keyChanged(ogrekey, true);
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243 | break;
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244 | case KeyRelease:
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245 | XLookupString(&event.xkey,NULL,0,&key,NULL);
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246 | ogrekey = _key_map[key];
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247 |
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248 | // Unbuffered input
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249 | _key_pressed_set.erase(ogrekey);
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250 |
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251 | // Buffered input
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252 | if(mUseBufferedKeys)
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253 | keyChanged(ogrekey, false);
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254 | break;
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255 | case MotionNotify:
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256 | mMouseState.Xabs = event.xmotion.x;
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257 | mMouseState.Yabs = event.xmotion.y;
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258 | hasMouseMoved = true;
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259 | break;
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260 |
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261 | case ButtonPress:
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262 | button_down = true;
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263 | case ButtonRelease:
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264 | switch(event.xbutton.button) {
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265 | case 1: // LEFT
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266 | button_mask = InputEvent::BUTTON0_MASK;
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267 | button_bits = 1;
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268 | break;
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269 | case 2: // MIDDLE
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270 | button_mask = InputEvent::BUTTON1_MASK;
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271 | button_bits = 2;
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272 | break;
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273 | case 3: // RIGHT
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274 | button_mask = InputEvent::BUTTON2_MASK;
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275 | button_bits = 4;
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276 | break;
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277 | case 4: // WHEEL UP
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278 | mMouseState.Zrel += mWheelStep;
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279 | break;
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280 | case 5: // WHEEN DOWN
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281 | mMouseState.Zrel -= mWheelStep;
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282 | break;
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283 | };
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284 | // Unbuffered mouse
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285 | if(button_down)
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286 | mMouseState.Buttons |= button_bits;
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287 | else
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288 | mMouseState.Buttons &= ~button_bits;
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289 |
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290 | // Buffered mouse
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291 | if(mUseBufferedMouse)
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292 | triggerMouseButton(button_mask, button_down);
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293 |
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294 | // Mouse re-grab
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295 | if(captureMouse && !warpMouse && button_down && event.xbutton.button==1) {
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296 | GrabCursor(true);
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297 | }
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298 |
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299 | break;
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300 | }
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301 | }
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302 | #define MOUSE_FUDGE_FACTOR 8 /* Thanks to SDL for this idea */
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303 |
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304 | if(warpMouse) {
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305 | // Calculate the relative motion from the last mouse position and the new one.
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306 | mMouseState.Xrel = mMouseState.Xabs - mouseLastX;
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307 | mMouseState.Yrel = mMouseState.Yabs - mouseLastY;
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308 | mouseLastX = mMouseState.Xabs;
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309 | mouseLastY = mMouseState.Yabs;
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310 |
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311 | unsigned int width, height, depth;
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312 | int left, top;
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313 | w->getMetrics(width, height, depth, left, top);
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314 | // If the mouse cursor has reached the border of the window
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315 | // (it is closer than MOUSE_FUDGE_FACTOR), warp it back to
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316 | // the middle.
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317 | if( (mMouseState.Xabs < MOUSE_FUDGE_FACTOR) ||
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318 | (mMouseState.Xabs > (width-MOUSE_FUDGE_FACTOR)) ||
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319 | (mMouseState.Yabs < MOUSE_FUDGE_FACTOR) ||
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320 | (mMouseState.Yabs > (height-MOUSE_FUDGE_FACTOR)) ) {
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321 | mouseLastX = mMouseState.Xabs = width / 2;
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322 | mouseLastY = mMouseState.Yabs = height / 2;
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323 | XWarpPointer(mDisplay, None, mWindow, 0, 0, 0, 0,
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324 | mMouseState.Xabs, mMouseState.Yabs);
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325 | }
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326 | }
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327 | if(hasMouseMoved && mUseBufferedMouse) {
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328 | // Send mouse moved event to application and move cursor.
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329 | mouseMoved();
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330 | mCursor->addToX(mMouseState.Xrel * mMouseScale);
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331 | mCursor->addToY(mMouseState.Yrel * mMouseScale);
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332 | }
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333 |
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334 | }
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335 |
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336 | bool GLXInput::isKeyDownImmediate(KeyCode kc) const {
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337 | return _key_pressed_set.count(kc);
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338 | }
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339 |
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340 | long GLXInput::getMouseRelX() const {
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341 | return mMouseState.Xrel;
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342 | }
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343 |
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344 | long GLXInput::getMouseRelY() const {
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345 | return mMouseState.Yrel;
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346 | }
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347 |
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348 | long GLXInput::getMouseRelZ() const {
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349 | return mMouseState.Zrel;
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350 | }
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351 |
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352 | long GLXInput::getMouseAbsX() const {
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353 | return mMouseState.Xabs;
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354 | }
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355 |
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356 | long GLXInput::getMouseAbsY() const {
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357 | return mMouseState.Yabs;
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358 | }
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359 |
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360 | long GLXInput::getMouseAbsZ() const {
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361 | return mMouseState.Zabs;
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362 | }
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363 |
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364 | bool GLXInput::getMouseButton( uchar button ) const {
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365 | return mMouseState.isButtonDown( button );
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366 | }
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367 |
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368 | void GLXInput::getMouseState( MouseState& state ) const {
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369 | memcpy( &state, &mMouseState, sizeof( MouseState ) );
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370 | }
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371 |
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372 | void GLXInput::GrabCursor(bool grab) {
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373 | if(!captureMouse)
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374 | // Never do mouse capture
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375 | return;
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376 | // Get window metrics
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377 | unsigned int width, height, depth;
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378 | int left, top;
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379 | mRenderWindow->getMetrics(width, height, depth, left, top);
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380 |
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381 | warpMouse = grab;
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382 | if(warpMouse) {
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383 | // Hide mouse
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384 | XDefineCursor(mDisplay, mWindow, mHiddenCursor);
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385 | // Grab keyboard and mouse
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386 | XGrabPointer(mDisplay,mWindow,True,0,GrabModeAsync,GrabModeAsync,mWindow,None,CurrentTime);
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387 | XGrabKeyboard(mDisplay,mWindow,True,GrabModeAsync,GrabModeAsync,CurrentTime);
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388 | // Mouse warpin' fun
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389 | mouseLastX = mMouseState.Xabs = width / 2;
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390 | mouseLastY = mMouseState.Yabs = height / 2;
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391 | XWarpPointer(mDisplay, None, mWindow, 0, 0, 0, 0,
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392 | mMouseState.Xabs, mMouseState.Yabs);
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393 | } else {
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394 | // Show mouse
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395 | XUndefineCursor(mDisplay, mWindow);
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396 | // Ungrab keyboard and mouse
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397 | XUngrabPointer(mDisplay,CurrentTime);
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398 | XUngrabKeyboard(mDisplay,CurrentTime);
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399 |
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400 | }
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401 | }
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402 |
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403 |
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404 | }
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