mirror of
https://github.com/glfw/glfw.git
synced 2024-11-22 21:14:35 +00:00
Moved all the key code translation logic into the LUT (cleaner & less overhead).
This commit is contained in:
Marcus
parent
e3cb563a28
commit
2c169997f5
@ -62,31 +62,208 @@ static void initLibraries(void)
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}
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//========================================================================
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// Translate an X11 key code to a GLFW key code.
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//========================================================================
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static int keyCodeToGLFWKeyCode(int keyCode)
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{
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int keySym;
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// Valid key code range is [8,255], according to the XLib manual
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if (keyCode < 8 || keyCode > 255)
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return -1;
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// Try secondary keysym, for numeric keypad keys
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// Note: This way we always force "NumLock = ON", which is intentional
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// since the returned key code should correspond to a physical
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// location.
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keySym = XKeycodeToKeysym(_glfwLibrary.X11.display, keyCode, 1);
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switch (keySym)
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{
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case XK_KP_0: return GLFW_KEY_KP_0;
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case XK_KP_1: return GLFW_KEY_KP_1;
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case XK_KP_2: return GLFW_KEY_KP_2;
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case XK_KP_3: return GLFW_KEY_KP_3;
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case XK_KP_4: return GLFW_KEY_KP_4;
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case XK_KP_5: return GLFW_KEY_KP_5;
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case XK_KP_6: return GLFW_KEY_KP_6;
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case XK_KP_7: return GLFW_KEY_KP_7;
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case XK_KP_8: return GLFW_KEY_KP_8;
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case XK_KP_9: return GLFW_KEY_KP_9;
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case XK_KP_Separator:
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case XK_KP_Decimal: return GLFW_KEY_KP_DECIMAL;
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case XK_KP_Equal: return GLFW_KEY_KP_EQUAL;
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case XK_KP_Enter: return GLFW_KEY_KP_ENTER;
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default: break;
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}
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// Now try pimary keysym for function keys (non-printable keys). These
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// should not be layout dependent (i.e. US layout and international
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// layouts should give the same result).
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keySym = XKeycodeToKeysym(_glfwLibrary.X11.display, keyCode, 0);
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switch (keySym)
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{
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case XK_Escape: return GLFW_KEY_ESCAPE;
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case XK_Tab: return GLFW_KEY_TAB;
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case XK_Shift_L: return GLFW_KEY_LEFT_SHIFT;
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case XK_Shift_R: return GLFW_KEY_RIGHT_SHIFT;
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case XK_Control_L: return GLFW_KEY_LEFT_CONTROL;
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case XK_Control_R: return GLFW_KEY_RIGHT_CONTROL;
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case XK_Meta_L:
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case XK_Alt_L: return GLFW_KEY_LEFT_ALT;
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case XK_Mode_switch: // Mapped to Alt_R on many keyboards
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case XK_ISO_Level3_Shift: // AltGr on at least some machines
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case XK_Meta_R:
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case XK_Alt_R: return GLFW_KEY_RIGHT_ALT;
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case XK_Super_L: return GLFW_KEY_LEFT_SUPER;
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case XK_Super_R: return GLFW_KEY_RIGHT_SUPER;
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case XK_Menu: return GLFW_KEY_MENU;
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case XK_Num_Lock: return GLFW_KEY_NUM_LOCK;
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case XK_Caps_Lock: return GLFW_KEY_CAPS_LOCK;
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case XK_Scroll_Lock: return GLFW_KEY_SCROLL_LOCK;
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case XK_Pause: return GLFW_KEY_PAUSE;
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case XK_Delete: return GLFW_KEY_DELETE;
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case XK_BackSpace: return GLFW_KEY_BACKSPACE;
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case XK_Return: return GLFW_KEY_ENTER;
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case XK_Home: return GLFW_KEY_HOME;
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case XK_End: return GLFW_KEY_END;
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case XK_Page_Up: return GLFW_KEY_PAGE_UP;
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case XK_Page_Down: return GLFW_KEY_PAGE_DOWN;
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case XK_Insert: return GLFW_KEY_INSERT;
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case XK_Left: return GLFW_KEY_LEFT;
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case XK_Right: return GLFW_KEY_RIGHT;
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case XK_Down: return GLFW_KEY_DOWN;
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case XK_Up: return GLFW_KEY_UP;
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case XK_F1: return GLFW_KEY_F1;
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case XK_F2: return GLFW_KEY_F2;
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case XK_F3: return GLFW_KEY_F3;
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case XK_F4: return GLFW_KEY_F4;
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case XK_F5: return GLFW_KEY_F5;
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case XK_F6: return GLFW_KEY_F6;
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case XK_F7: return GLFW_KEY_F7;
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case XK_F8: return GLFW_KEY_F8;
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case XK_F9: return GLFW_KEY_F9;
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case XK_F10: return GLFW_KEY_F10;
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case XK_F11: return GLFW_KEY_F11;
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case XK_F12: return GLFW_KEY_F12;
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case XK_F13: return GLFW_KEY_F13;
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case XK_F14: return GLFW_KEY_F14;
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case XK_F15: return GLFW_KEY_F15;
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case XK_F16: return GLFW_KEY_F16;
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case XK_F17: return GLFW_KEY_F17;
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case XK_F18: return GLFW_KEY_F18;
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case XK_F19: return GLFW_KEY_F19;
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case XK_F20: return GLFW_KEY_F20;
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case XK_F21: return GLFW_KEY_F21;
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case XK_F22: return GLFW_KEY_F22;
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case XK_F23: return GLFW_KEY_F23;
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case XK_F24: return GLFW_KEY_F24;
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case XK_F25: return GLFW_KEY_F25;
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// Numeric keypad
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case XK_KP_Divide: return GLFW_KEY_KP_DIVIDE;
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case XK_KP_Multiply: return GLFW_KEY_KP_MULTIPLY;
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case XK_KP_Subtract: return GLFW_KEY_KP_SUBTRACT;
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case XK_KP_Add: return GLFW_KEY_KP_ADD;
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// These should have been detected in secondary keysym test above!
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case XK_KP_Insert: return GLFW_KEY_KP_0;
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case XK_KP_End: return GLFW_KEY_KP_1;
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case XK_KP_Down: return GLFW_KEY_KP_2;
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case XK_KP_Page_Down: return GLFW_KEY_KP_3;
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case XK_KP_Left: return GLFW_KEY_KP_4;
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case XK_KP_Right: return GLFW_KEY_KP_6;
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case XK_KP_Home: return GLFW_KEY_KP_7;
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case XK_KP_Up: return GLFW_KEY_KP_8;
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case XK_KP_Page_Up: return GLFW_KEY_KP_9;
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case XK_KP_Delete: return GLFW_KEY_KP_DECIMAL;
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case XK_KP_Equal: return GLFW_KEY_KP_EQUAL;
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case XK_KP_Enter: return GLFW_KEY_KP_ENTER;
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// Last resort: Check for printable keys (should not happen if the XKB
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// extension is available). This will give a layout dependent mapping
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// (which is wrong, and we may miss some keys, especially on non-US
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// keyboards), but it's better than nothing...
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case XK_a: return GLFW_KEY_A;
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case XK_b: return GLFW_KEY_B;
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case XK_c: return GLFW_KEY_C;
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case XK_d: return GLFW_KEY_D;
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case XK_e: return GLFW_KEY_E;
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case XK_f: return GLFW_KEY_F;
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case XK_g: return GLFW_KEY_G;
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case XK_h: return GLFW_KEY_H;
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case XK_i: return GLFW_KEY_I;
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case XK_j: return GLFW_KEY_J;
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case XK_k: return GLFW_KEY_K;
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case XK_l: return GLFW_KEY_L;
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case XK_m: return GLFW_KEY_M;
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case XK_n: return GLFW_KEY_N;
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case XK_o: return GLFW_KEY_O;
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case XK_p: return GLFW_KEY_P;
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case XK_q: return GLFW_KEY_Q;
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case XK_r: return GLFW_KEY_R;
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case XK_s: return GLFW_KEY_S;
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case XK_t: return GLFW_KEY_T;
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case XK_u: return GLFW_KEY_U;
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case XK_v: return GLFW_KEY_V;
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case XK_w: return GLFW_KEY_W;
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case XK_x: return GLFW_KEY_X;
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case XK_y: return GLFW_KEY_Y;
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case XK_z: return GLFW_KEY_Z;
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case XK_1: return GLFW_KEY_1;
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case XK_2: return GLFW_KEY_2;
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case XK_3: return GLFW_KEY_3;
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case XK_4: return GLFW_KEY_4;
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case XK_5: return GLFW_KEY_5;
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case XK_6: return GLFW_KEY_6;
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case XK_7: return GLFW_KEY_7;
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case XK_8: return GLFW_KEY_8;
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case XK_9: return GLFW_KEY_9;
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case XK_0: return GLFW_KEY_0;
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case XK_space: return GLFW_KEY_SPACE;
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case XK_minus: return GLFW_KEY_MINUS;
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case XK_equal: return GLFW_KEY_EQUAL;
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case XK_bracketleft: return GLFW_KEY_LEFT_BRACKET;
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case XK_bracketright: return GLFW_KEY_RIGHT_BRACKET;
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case XK_backslash: return GLFW_KEY_BACKSLASH;
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case XK_semicolon: return GLFW_KEY_SEMICOLON;
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case XK_apostrophe: return GLFW_KEY_APOSTROPHE;
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case XK_grave: return GLFW_KEY_GRAVE_ACCENT;
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case XK_comma: return GLFW_KEY_COMMA;
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case XK_period: return GLFW_KEY_PERIOD;
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case XK_slash: return GLFW_KEY_SLASH;
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case XK_less: return GLFW_KEY_WORLD_1; // At least in some layouts...
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default: break;
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}
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// No matching translation was found, so return -1
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return -1;
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}
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//========================================================================
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// Update the key code LUT
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//========================================================================
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static void updateKeyCodeLUT(void)
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{
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#if defined(_GLFW_HAS_XKB)
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int keyCode, keyCodeGLFW;
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char name[XkbKeyNameLength+1];
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XkbDescPtr descr;
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#endif
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int i;
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int keyCode;
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// Clear the LUT
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for (i = 0; i < 256; ++i)
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for (keyCode = 0; keyCode < 256; ++keyCode)
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{
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_glfwLibrary.X11.keyCodeLUT[i] = -1;
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_glfwLibrary.X11.keyCodeLUT[keyCode] = -1;
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}
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#if defined(_GLFW_HAS_XKB)
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// This functionality requires the Xkb extension
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if (!_glfwLibrary.X11.Xkb.available)
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// If the Xkb extension is available, use it to determine physical key
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// locations independently of the current keyboard layout
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if (_glfwLibrary.X11.Xkb.available)
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{
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return;
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}
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int i, keyCodeGLFW;
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char name[XkbKeyNameLength+1];
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XkbDescPtr descr;
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// Get keyboard description
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descr = XkbGetKeyboard(_glfwLibrary.X11.display,
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@ -104,7 +281,9 @@ static void updateKeyCodeLUT(void)
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name[XkbKeyNameLength] = 0;
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// Map the key name to a GLFW key code. Note: We only map printable
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// keys here, and we use the US keyboard layout.
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// keys here, and we use the US keyboard layout. The rest of the
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// keys (function keys) are mapped using traditional KeySym
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// translations.
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if (strcmp(name, "TLDE") == 0) keyCodeGLFW = GLFW_KEY_GRAVE_ACCENT;
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else if (strcmp(name, "AE01") == 0) keyCodeGLFW = GLFW_KEY_1;
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else if (strcmp(name, "AE02") == 0) keyCodeGLFW = GLFW_KEY_2;
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@ -164,7 +343,19 @@ static void updateKeyCodeLUT(void)
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// Free the keyboard description
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XkbFreeKeyboard(descr, 0, True);
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}
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#endif /* _GLFW_HAS_XKB */
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// Translate the un-translated key codes using traditional X11 KeySym
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// lookups
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for (keyCode = 0; keyCode < 256; ++keyCode)
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{
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if (_glfwLibrary.X11.keyCodeLUT[keyCode] < 0)
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{
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_glfwLibrary.X11.keyCodeLUT[keyCode] =
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keyCodeToGLFWKeyCode(keyCode);
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}
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}
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}
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@ -219,188 +219,15 @@ static GLboolean checkForEWMH(_GLFWwindow* window)
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static int translateKey(int keycode)
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{
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KeySym key;
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// Try secondary keysym, for numeric keypad keys
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// Note: This way we always force "NumLock = ON", which is intentional
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// since the returned key code should correspond to a physical
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// location.
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key = XKeycodeToKeysym(_glfwLibrary.X11.display, keycode, 1);
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switch (key)
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{
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case XK_KP_0: return GLFW_KEY_KP_0;
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case XK_KP_1: return GLFW_KEY_KP_1;
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case XK_KP_2: return GLFW_KEY_KP_2;
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case XK_KP_3: return GLFW_KEY_KP_3;
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case XK_KP_4: return GLFW_KEY_KP_4;
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case XK_KP_5: return GLFW_KEY_KP_5;
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case XK_KP_6: return GLFW_KEY_KP_6;
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case XK_KP_7: return GLFW_KEY_KP_7;
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case XK_KP_8: return GLFW_KEY_KP_8;
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case XK_KP_9: return GLFW_KEY_KP_9;
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case XK_KP_Separator:
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case XK_KP_Decimal: return GLFW_KEY_KP_DECIMAL;
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case XK_KP_Equal: return GLFW_KEY_KP_EQUAL;
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case XK_KP_Enter: return GLFW_KEY_KP_ENTER;
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default: break;
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}
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// Now try pimary keysym for function keys (non-printable keys). These
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// should not be layout dependent (i.e. US layout and international
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// layouts should give the same result).
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key = XKeycodeToKeysym(_glfwLibrary.X11.display, keycode, 0);
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switch (key)
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{
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case XK_Escape: return GLFW_KEY_ESCAPE;
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case XK_Tab: return GLFW_KEY_TAB;
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case XK_Shift_L: return GLFW_KEY_LEFT_SHIFT;
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case XK_Shift_R: return GLFW_KEY_RIGHT_SHIFT;
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case XK_Control_L: return GLFW_KEY_LEFT_CONTROL;
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case XK_Control_R: return GLFW_KEY_RIGHT_CONTROL;
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case XK_Meta_L:
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case XK_Alt_L: return GLFW_KEY_LEFT_ALT;
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case XK_Mode_switch: // Mapped to Alt_R on many keyboards
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case XK_ISO_Level3_Shift: // AltGr on at least some machines
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case XK_Meta_R:
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case XK_Alt_R: return GLFW_KEY_RIGHT_ALT;
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case XK_Super_L: return GLFW_KEY_LEFT_SUPER;
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case XK_Super_R: return GLFW_KEY_RIGHT_SUPER;
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case XK_Menu: return GLFW_KEY_MENU;
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case XK_Num_Lock: return GLFW_KEY_NUM_LOCK;
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case XK_Caps_Lock: return GLFW_KEY_CAPS_LOCK;
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case XK_Scroll_Lock: return GLFW_KEY_SCROLL_LOCK;
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case XK_Pause: return GLFW_KEY_PAUSE;
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case XK_Delete: return GLFW_KEY_DELETE;
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case XK_BackSpace: return GLFW_KEY_BACKSPACE;
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case XK_Return: return GLFW_KEY_ENTER;
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case XK_Home: return GLFW_KEY_HOME;
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case XK_End: return GLFW_KEY_END;
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case XK_Page_Up: return GLFW_KEY_PAGE_UP;
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case XK_Page_Down: return GLFW_KEY_PAGE_DOWN;
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case XK_Insert: return GLFW_KEY_INSERT;
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case XK_Left: return GLFW_KEY_LEFT;
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case XK_Right: return GLFW_KEY_RIGHT;
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case XK_Down: return GLFW_KEY_DOWN;
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case XK_Up: return GLFW_KEY_UP;
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case XK_F1: return GLFW_KEY_F1;
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case XK_F2: return GLFW_KEY_F2;
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case XK_F3: return GLFW_KEY_F3;
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case XK_F4: return GLFW_KEY_F4;
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case XK_F5: return GLFW_KEY_F5;
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case XK_F6: return GLFW_KEY_F6;
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case XK_F7: return GLFW_KEY_F7;
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case XK_F8: return GLFW_KEY_F8;
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case XK_F9: return GLFW_KEY_F9;
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case XK_F10: return GLFW_KEY_F10;
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case XK_F11: return GLFW_KEY_F11;
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case XK_F12: return GLFW_KEY_F12;
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case XK_F13: return GLFW_KEY_F13;
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case XK_F14: return GLFW_KEY_F14;
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case XK_F15: return GLFW_KEY_F15;
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case XK_F16: return GLFW_KEY_F16;
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case XK_F17: return GLFW_KEY_F17;
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case XK_F18: return GLFW_KEY_F18;
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case XK_F19: return GLFW_KEY_F19;
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case XK_F20: return GLFW_KEY_F20;
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case XK_F21: return GLFW_KEY_F21;
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case XK_F22: return GLFW_KEY_F22;
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case XK_F23: return GLFW_KEY_F23;
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case XK_F24: return GLFW_KEY_F24;
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case XK_F25: return GLFW_KEY_F25;
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// Numeric keypad
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case XK_KP_Divide: return GLFW_KEY_KP_DIVIDE;
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case XK_KP_Multiply: return GLFW_KEY_KP_MULTIPLY;
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case XK_KP_Subtract: return GLFW_KEY_KP_SUBTRACT;
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case XK_KP_Add: return GLFW_KEY_KP_ADD;
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// These should have been detected in secondary keysym test above!
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case XK_KP_Insert: return GLFW_KEY_KP_0;
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case XK_KP_End: return GLFW_KEY_KP_1;
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case XK_KP_Down: return GLFW_KEY_KP_2;
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case XK_KP_Page_Down: return GLFW_KEY_KP_3;
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case XK_KP_Left: return GLFW_KEY_KP_4;
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case XK_KP_Right: return GLFW_KEY_KP_6;
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case XK_KP_Home: return GLFW_KEY_KP_7;
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case XK_KP_Up: return GLFW_KEY_KP_8;
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case XK_KP_Page_Up: return GLFW_KEY_KP_9;
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case XK_KP_Delete: return GLFW_KEY_KP_DECIMAL;
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case XK_KP_Equal: return GLFW_KEY_KP_EQUAL;
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case XK_KP_Enter: return GLFW_KEY_KP_ENTER;
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default: break;
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}
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// At this point we should only have printable keys left. We try the
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// pre-filled LUT first (which is layout independent), which should give
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// a positive result if we have the Xkb extension.
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||||
// Use the pre-filled LUT (see updateKeyCodeLUT() ).
|
||||
if ((keycode >= 0) && (keycode < 256))
|
||||
{
|
||||
int result = _glfwLibrary.X11.keyCodeLUT[keycode];
|
||||
if (result >= 0)
|
||||
return _glfwLibrary.X11.keyCodeLUT[keycode];
|
||||
}
|
||||
else
|
||||
{
|
||||
return result;
|
||||
}
|
||||
}
|
||||
|
||||
// Last resort: Check the pimary keysym for printable keys. This will
|
||||
// give a layout dependent mapping (which is wrong, and we may miss some
|
||||
// keys, especially on non-US keyboards), but it's better than nothing...
|
||||
switch (key)
|
||||
{
|
||||
case XK_a: return GLFW_KEY_A;
|
||||
case XK_b: return GLFW_KEY_B;
|
||||
case XK_c: return GLFW_KEY_C;
|
||||
case XK_d: return GLFW_KEY_D;
|
||||
case XK_e: return GLFW_KEY_E;
|
||||
case XK_f: return GLFW_KEY_F;
|
||||
case XK_g: return GLFW_KEY_G;
|
||||
case XK_h: return GLFW_KEY_H;
|
||||
case XK_i: return GLFW_KEY_I;
|
||||
case XK_j: return GLFW_KEY_J;
|
||||
case XK_k: return GLFW_KEY_K;
|
||||
case XK_l: return GLFW_KEY_L;
|
||||
case XK_m: return GLFW_KEY_M;
|
||||
case XK_n: return GLFW_KEY_N;
|
||||
case XK_o: return GLFW_KEY_O;
|
||||
case XK_p: return GLFW_KEY_P;
|
||||
case XK_q: return GLFW_KEY_Q;
|
||||
case XK_r: return GLFW_KEY_R;
|
||||
case XK_s: return GLFW_KEY_S;
|
||||
case XK_t: return GLFW_KEY_T;
|
||||
case XK_u: return GLFW_KEY_U;
|
||||
case XK_v: return GLFW_KEY_V;
|
||||
case XK_w: return GLFW_KEY_W;
|
||||
case XK_x: return GLFW_KEY_X;
|
||||
case XK_y: return GLFW_KEY_Y;
|
||||
case XK_z: return GLFW_KEY_Z;
|
||||
case XK_1: return GLFW_KEY_1;
|
||||
case XK_2: return GLFW_KEY_2;
|
||||
case XK_3: return GLFW_KEY_3;
|
||||
case XK_4: return GLFW_KEY_4;
|
||||
case XK_5: return GLFW_KEY_5;
|
||||
case XK_6: return GLFW_KEY_6;
|
||||
case XK_7: return GLFW_KEY_7;
|
||||
case XK_8: return GLFW_KEY_8;
|
||||
case XK_9: return GLFW_KEY_9;
|
||||
case XK_0: return GLFW_KEY_0;
|
||||
case XK_space: return GLFW_KEY_SPACE;
|
||||
case XK_minus: return GLFW_KEY_MINUS;
|
||||
case XK_equal: return GLFW_KEY_EQUAL;
|
||||
case XK_bracketleft: return GLFW_KEY_LEFT_BRACKET;
|
||||
case XK_bracketright: return GLFW_KEY_RIGHT_BRACKET;
|
||||
case XK_backslash: return GLFW_KEY_BACKSLASH;
|
||||
case XK_semicolon: return GLFW_KEY_SEMICOLON;
|
||||
case XK_apostrophe: return GLFW_KEY_APOSTROPHE;
|
||||
case XK_grave: return GLFW_KEY_GRAVE_ACCENT;
|
||||
case XK_comma: return GLFW_KEY_COMMA;
|
||||
case XK_period: return GLFW_KEY_PERIOD;
|
||||
case XK_slash: return GLFW_KEY_SLASH;
|
||||
case XK_less: return GLFW_KEY_WORLD_1; // At least in some layouts...
|
||||
default: break;
|
||||
}
|
||||
|
||||
// No matching translation was found, so return -1
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user