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611 lines
17 KiB
611 lines
17 KiB
//
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// Copyright (c) 2015 The ANGLE Project Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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//
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// X11Window.cpp: Implementation of OSWindow for X11
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#include "x11/X11Window.h"
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#include "base/System.h"
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#include <assert.h>
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namespace {
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Bool WaitForMapNotify(Display *dpy, XEvent *event, XPointer window)
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{
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return event->type == MapNotify && event->xmap.window == reinterpret_cast<Window>(window);
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}
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static Key X11CodeToKey(Display *display, unsigned int scancode)
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{
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int temp;
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KeySym *keySymbols;
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keySymbols = XGetKeyboardMapping(display, scancode, 1, &temp);
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unsigned int keySymbol = keySymbols[0];
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XFree(keySymbols);
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switch (keySymbol)
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{
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case XK_Shift_L: return KEY_LSHIFT;
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case XK_Shift_R: return KEY_RSHIFT;
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case XK_Alt_L: return KEY_LALT;
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case XK_Alt_R: return KEY_RALT;
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case XK_Control_L: return KEY_LCONTROL;
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case XK_Control_R: return KEY_RCONTROL;
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case XK_Super_L: return KEY_LSYSTEM;
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case XK_Super_R: return KEY_RSYSTEM;
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case XK_Menu: return KEY_MENU;
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case XK_semicolon: return KEY_SEMICOLON;
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case XK_slash: return KEY_SLASH;
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case XK_equal: return KEY_EQUAL;
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case XK_minus: return KEY_DASH;
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case XK_bracketleft: return KEY_LBRACKET;
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case XK_bracketright:return KEY_RBRACKET;
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case XK_comma: return KEY_COMMA;
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case XK_period: return KEY_PERIOD;
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case XK_backslash: return KEY_BACKSLASH;
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case XK_asciitilde: return KEY_TILDE;
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case XK_Escape: return KEY_ESCAPE;
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case XK_space: return KEY_SPACE;
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case XK_Return: return KEY_RETURN;
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case XK_BackSpace: return KEY_BACK;
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case XK_Tab: return KEY_TAB;
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case XK_Page_Up: return KEY_PAGEUP;
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case XK_Page_Down: return KEY_PAGEDOWN;
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case XK_End: return KEY_END;
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case XK_Home: return KEY_HOME;
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case XK_Insert: return KEY_INSERT;
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case XK_Delete: return KEY_DELETE;
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case XK_KP_Add: return KEY_ADD;
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case XK_KP_Subtract: return KEY_SUBTRACT;
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case XK_KP_Multiply: return KEY_MULTIPLY;
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case XK_KP_Divide: return KEY_DIVIDE;
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case XK_Pause: return KEY_PAUSE;
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case XK_F1: return KEY_F1;
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case XK_F2: return KEY_F2;
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case XK_F3: return KEY_F3;
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case XK_F4: return KEY_F4;
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case XK_F5: return KEY_F5;
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case XK_F6: return KEY_F6;
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case XK_F7: return KEY_F7;
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case XK_F8: return KEY_F8;
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case XK_F9: return KEY_F9;
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case XK_F10: return KEY_F10;
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case XK_F11: return KEY_F11;
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case XK_F12: return KEY_F12;
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case XK_F13: return KEY_F13;
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case XK_F14: return KEY_F14;
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case XK_F15: return KEY_F15;
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case XK_Left: return KEY_LEFT;
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case XK_Right: return KEY_RIGHT;
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case XK_Down: return KEY_DOWN;
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case XK_Up: return KEY_UP;
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case XK_KP_Insert: return KEY_NUMPAD0;
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case XK_KP_End: return KEY_NUMPAD1;
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case XK_KP_Down: return KEY_NUMPAD2;
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case XK_KP_Page_Down:return KEY_NUMPAD3;
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case XK_KP_Left: return KEY_NUMPAD4;
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case XK_KP_5: return KEY_NUMPAD5;
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case XK_KP_Right: return KEY_NUMPAD6;
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case XK_KP_Home: return KEY_NUMPAD7;
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case XK_KP_Up: return KEY_NUMPAD8;
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case XK_KP_Page_Up: return KEY_NUMPAD9;
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case XK_a: return KEY_A;
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case XK_b: return KEY_B;
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case XK_c: return KEY_C;
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case XK_d: return KEY_D;
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case XK_e: return KEY_E;
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case XK_f: return KEY_F;
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case XK_g: return KEY_G;
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case XK_h: return KEY_H;
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case XK_i: return KEY_I;
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case XK_j: return KEY_J;
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case XK_k: return KEY_K;
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case XK_l: return KEY_L;
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case XK_m: return KEY_M;
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case XK_n: return KEY_N;
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case XK_o: return KEY_O;
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case XK_p: return KEY_P;
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case XK_q: return KEY_Q;
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case XK_r: return KEY_R;
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case XK_s: return KEY_S;
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case XK_t: return KEY_T;
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case XK_u: return KEY_U;
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case XK_v: return KEY_V;
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case XK_w: return KEY_W;
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case XK_x: return KEY_X;
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case XK_y: return KEY_Y;
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case XK_z: return KEY_Z;
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case XK_1: return KEY_NUM1;
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case XK_2: return KEY_NUM2;
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case XK_3: return KEY_NUM3;
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case XK_4: return KEY_NUM4;
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case XK_5: return KEY_NUM5;
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case XK_6: return KEY_NUM6;
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case XK_7: return KEY_NUM7;
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case XK_8: return KEY_NUM8;
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case XK_9: return KEY_NUM9;
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case XK_0: return KEY_NUM0;
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}
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return Key(0);
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}
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static void AddX11KeyStateToEvent(Event *event, unsigned int state)
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{
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event->Key.Shift = state & ShiftMask;
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event->Key.Control = state & ControlMask;
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event->Key.Alt = state & Mod1Mask;
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event->Key.System = state & Mod4Mask;
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}
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}
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X11Window::X11Window()
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: WM_DELETE_WINDOW(None),
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WM_PROTOCOLS(None),
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TEST_EVENT(None),
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mDisplay(nullptr),
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mWindow(0),
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mRequestedVisualId(-1),
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mVisible(false)
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{
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}
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X11Window::X11Window(int visualId)
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: WM_DELETE_WINDOW(None),
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WM_PROTOCOLS(None),
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TEST_EVENT(None),
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mDisplay(nullptr),
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mWindow(0),
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mRequestedVisualId(visualId),
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mVisible(false)
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{
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}
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X11Window::~X11Window()
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{
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destroy();
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}
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bool X11Window::initialize(const std::string &name, size_t width, size_t height)
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{
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destroy();
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mDisplay = XOpenDisplay(nullptr);
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if (!mDisplay)
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{
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return false;
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}
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{
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int screen = DefaultScreen(mDisplay);
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Window root = RootWindow(mDisplay, screen);
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Visual *visual;
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if (mRequestedVisualId == -1)
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{
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visual = DefaultVisual(mDisplay, screen);
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}
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else
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{
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XVisualInfo visualTemplate;
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visualTemplate.visualid = mRequestedVisualId;
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int numVisuals = 0;
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XVisualInfo *visuals = XGetVisualInfo(mDisplay, VisualIDMask, &visualTemplate, &numVisuals);
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if (numVisuals <= 0)
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{
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return false;
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}
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assert(numVisuals == 1);
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visual = visuals[0].visual;
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XFree(visuals);
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}
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int depth = DefaultDepth(mDisplay, screen);
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Colormap colormap = XCreateColormap(mDisplay, root, visual, AllocNone);
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XSetWindowAttributes attributes;
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unsigned long attributeMask = CWBorderPixel | CWColormap | CWEventMask;
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attributes.event_mask = StructureNotifyMask | PointerMotionMask | ButtonPressMask |
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ButtonReleaseMask | FocusChangeMask | EnterWindowMask |
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LeaveWindowMask | KeyPressMask | KeyReleaseMask;
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attributes.border_pixel = 0;
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attributes.colormap = colormap;
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mWindow = XCreateWindow(mDisplay, root, 0, 0, width, height, 0, depth, InputOutput,
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visual, attributeMask, &attributes);
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XFreeColormap(mDisplay, colormap);
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}
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if (!mWindow)
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{
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destroy();
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return false;
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}
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// Tell the window manager to notify us when the user wants to close the
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// window so we can do it ourselves.
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WM_DELETE_WINDOW = XInternAtom(mDisplay, "WM_DELETE_WINDOW", False);
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WM_PROTOCOLS = XInternAtom(mDisplay, "WM_PROTOCOLS", False);
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if (WM_DELETE_WINDOW == None || WM_PROTOCOLS == None)
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{
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destroy();
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return false;
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}
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if(XSetWMProtocols(mDisplay, mWindow, &WM_DELETE_WINDOW, 1) == 0)
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{
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destroy();
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return false;
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}
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// Create an atom to identify our test event
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TEST_EVENT = XInternAtom(mDisplay, "ANGLE_TEST_EVENT", False);
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if (TEST_EVENT == None)
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{
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destroy();
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return false;
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}
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XFlush(mDisplay);
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mX = 0;
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mY = 0;
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mWidth = width;
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mHeight = height;
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return true;
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}
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void X11Window::destroy()
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{
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if (mWindow)
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{
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XDestroyWindow(mDisplay, mWindow);
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mWindow = 0;
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}
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if (mDisplay)
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{
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XCloseDisplay(mDisplay);
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mDisplay = nullptr;
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}
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WM_DELETE_WINDOW = None;
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WM_PROTOCOLS = None;
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}
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EGLNativeWindowType X11Window::getNativeWindow() const
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{
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return mWindow;
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}
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EGLNativeDisplayType X11Window::getNativeDisplay() const
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{
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return mDisplay;
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}
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void* X11Window::getFramebufferNativeWindow() const
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{
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int screen = DefaultScreen(mDisplay);
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Window root = RootWindow(mDisplay, screen);
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return (void*)(uintptr_t)root;
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}
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void X11Window::messageLoop()
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{
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int eventCount = XPending(mDisplay);
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while (eventCount--)
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{
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XEvent event;
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XNextEvent(mDisplay, &event);
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processEvent(event);
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}
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}
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void X11Window::setMousePosition(int x, int y)
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{
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XWarpPointer(mDisplay, None, mWindow, 0, 0, 0, 0, x, y);
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}
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OSWindow *CreateOSWindow()
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{
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return new X11Window();
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}
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bool X11Window::setPosition(int x, int y)
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{
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XMoveWindow(mDisplay, mWindow, x, y);
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XFlush(mDisplay);
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return true;
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}
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bool X11Window::resize(int width, int height)
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{
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XResizeWindow(mDisplay, mWindow, width, height);
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XFlush(mDisplay);
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// Wait until the window as actually been resized so that the code calling resize
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// can assume the window has been resized.
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const double kResizeWaitDelay = 0.2;
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while (mHeight != height && mWidth != width)
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{
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messageLoop();
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android::base::sleepMs(100);
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}
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return true;
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}
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void X11Window::setVisible(bool isVisible)
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{
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if (mVisible == isVisible)
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{
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return;
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}
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if (isVisible)
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{
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XMapWindow(mDisplay, mWindow);
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// Wait until we get an event saying this window is mapped so that the
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// code calling setVisible can assume the window is visible.
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// This is important when creating a framebuffer as the framebuffer content
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// is undefined when the window is not visible.
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XEvent dummyEvent;
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XIfEvent(mDisplay, &dummyEvent, WaitForMapNotify, reinterpret_cast<XPointer>(mWindow));
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}
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else
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{
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XUnmapWindow(mDisplay, mWindow);
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XFlush(mDisplay);
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}
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mVisible = isVisible;
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}
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void X11Window::signalTestEvent()
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{
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XEvent event;
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event.type = ClientMessage;
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event.xclient.message_type = TEST_EVENT;
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// Format needs to be valid or a BadValue is generated
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event.xclient.format = 32;
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// Hijack StructureNotifyMask as we know we will be listening for it.
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XSendEvent(mDisplay, mWindow, False, StructureNotifyMask, &event);
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}
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void X11Window::processEvent(const XEvent &xEvent)
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{
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// TODO(cwallez) text events
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switch (xEvent.type)
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{
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case ButtonPress:
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{
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Event event;
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MouseButton button = MOUSEBUTTON_UNKNOWN;
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int wheelY = 0;
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// The mouse wheel updates are sent via button events.
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switch (xEvent.xbutton.button)
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{
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case Button4:
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wheelY = 1;
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break;
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case Button5:
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wheelY = -1;
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break;
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case 6:
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break;
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case 7:
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break;
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case Button1:
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button = MOUSEBUTTON_LEFT;
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break;
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case Button2:
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button = MOUSEBUTTON_MIDDLE;
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break;
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case Button3:
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button = MOUSEBUTTON_RIGHT;
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break;
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case 8:
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button = MOUSEBUTTON_BUTTON4;
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break;
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case 9:
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button = MOUSEBUTTON_BUTTON5;
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break;
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default:
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break;
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}
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if (wheelY != 0)
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{
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event.Type = Event::EVENT_MOUSE_WHEEL_MOVED;
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event.MouseWheel.Delta = wheelY;
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pushEvent(event);
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}
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if (button != MOUSEBUTTON_UNKNOWN)
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{
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event.Type = Event::EVENT_MOUSE_BUTTON_RELEASED;
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event.MouseButton.Button = button;
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event.MouseButton.X = xEvent.xbutton.x;
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event.MouseButton.Y = xEvent.xbutton.y;
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pushEvent(event);
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}
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}
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break;
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case ButtonRelease:
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{
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Event event;
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MouseButton button = MOUSEBUTTON_UNKNOWN;
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switch (xEvent.xbutton.button)
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{
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case Button1:
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button = MOUSEBUTTON_LEFT;
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break;
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case Button2:
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button = MOUSEBUTTON_MIDDLE;
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break;
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case Button3:
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button = MOUSEBUTTON_RIGHT;
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break;
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case 8:
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button = MOUSEBUTTON_BUTTON4;
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break;
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case 9:
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button = MOUSEBUTTON_BUTTON5;
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break;
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default:
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break;
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}
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if (button != MOUSEBUTTON_UNKNOWN)
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{
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event.Type = Event::EVENT_MOUSE_BUTTON_RELEASED;
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event.MouseButton.Button = button;
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event.MouseButton.X = xEvent.xbutton.x;
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event.MouseButton.Y = xEvent.xbutton.y;
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pushEvent(event);
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}
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}
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break;
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case KeyPress:
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{
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Event event;
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event.Type = Event::EVENT_KEY_PRESSED;
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event.Key.Code = X11CodeToKey(mDisplay, xEvent.xkey.keycode);
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AddX11KeyStateToEvent(&event, xEvent.xkey.state);
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pushEvent(event);
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}
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break;
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case KeyRelease:
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{
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Event event;
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event.Type = Event::EVENT_KEY_RELEASED;
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event.Key.Code = X11CodeToKey(mDisplay, xEvent.xkey.keycode);
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AddX11KeyStateToEvent(&event, xEvent.xkey.state);
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pushEvent(event);
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}
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break;
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case EnterNotify:
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{
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Event event;
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event.Type = Event::EVENT_MOUSE_ENTERED;
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pushEvent(event);
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}
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break;
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case LeaveNotify:
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{
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Event event;
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event.Type = Event::EVENT_MOUSE_LEFT;
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pushEvent(event);
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}
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break;
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case MotionNotify:
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{
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Event event;
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event.Type = Event::EVENT_MOUSE_MOVED;
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event.MouseMove.X = xEvent.xmotion.x;
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event.MouseMove.Y = xEvent.xmotion.y;
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pushEvent(event);
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}
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break;
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case ConfigureNotify:
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{
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if (xEvent.xconfigure.width != mWidth || xEvent.xconfigure.height != mHeight)
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{
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Event event;
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event.Type = Event::EVENT_RESIZED;
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event.Size.Width = xEvent.xconfigure.width;
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event.Size.Height = xEvent.xconfigure.height;
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pushEvent(event);
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}
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if (xEvent.xconfigure.x != mX || xEvent.xconfigure.y != mY)
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{
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// Sometimes, the window manager reparents our window (for example
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// when resizing) then the X and Y coordinates will be with respect to
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|
// the new parent and not what the user wants to know. Use
|
|
// XTranslateCoordinates to get the coordinates on the screen.
|
|
int screen = DefaultScreen(mDisplay);
|
|
Window root = RootWindow(mDisplay, screen);
|
|
|
|
int x, y;
|
|
Window child;
|
|
XTranslateCoordinates(mDisplay, mWindow, root, 0, 0, &x, &y, &child);
|
|
|
|
if (x != mX || y != mY)
|
|
{
|
|
Event event;
|
|
event.Type = Event::EVENT_MOVED;
|
|
event.Move.X = x;
|
|
event.Move.Y = y;
|
|
pushEvent(event);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case FocusIn:
|
|
if (xEvent.xfocus.mode == NotifyNormal || xEvent.xfocus.mode == NotifyWhileGrabbed)
|
|
{
|
|
Event event;
|
|
event.Type = Event::EVENT_GAINED_FOCUS;
|
|
pushEvent(event);
|
|
}
|
|
break;
|
|
|
|
case FocusOut:
|
|
if (xEvent.xfocus.mode == NotifyNormal || xEvent.xfocus.mode == NotifyWhileGrabbed)
|
|
{
|
|
Event event;
|
|
event.Type = Event::EVENT_LOST_FOCUS;
|
|
pushEvent(event);
|
|
}
|
|
break;
|
|
|
|
case DestroyNotify:
|
|
// We already received WM_DELETE_WINDOW
|
|
break;
|
|
|
|
case ClientMessage:
|
|
if (xEvent.xclient.message_type == WM_PROTOCOLS &&
|
|
static_cast<Atom>(xEvent.xclient.data.l[0]) == WM_DELETE_WINDOW)
|
|
{
|
|
Event event;
|
|
event.Type = Event::EVENT_CLOSED;
|
|
pushEvent(event);
|
|
}
|
|
else if (xEvent.xclient.message_type == TEST_EVENT)
|
|
{
|
|
Event event;
|
|
event.Type = Event::EVENT_TEST;
|
|
pushEvent(event);
|
|
}
|
|
break;
|
|
}
|
|
}
|