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linux_x11.jai
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linux_x11.jai
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// @Todo: handle window width and height (= viewport size with caption and borders)
// @Todo: raw mouse movement
// @Todo: handle maximize/minimize events, show and hide events,
// display changed events
// To implement for ImGui Fenetres backend:
// GetDisplays
// GetClipboardTextData
// SetClipboardTextData
// ClearClipboard
// All Fenetres GL stuff
#import "Basic";
X11 :: #import "X11";
GetOpenedXDisplay :: inline () -> *X11.Display #must #no_context
{
return g_display;
}
#scope_file
g_double_click_time_ms : u64 = 500;
g_display : *X11.Display;
g_wm_delete_window : X11.Atom;
g_wm_protocols : X11.Atom;
g_active_window : X11.Atom;
g_wm_state : X11.Atom;
g_wm_state_hidden : X11.Atom;
g_wm_state_maximized_vert : X11.Atom;
g_wm_state_maximized_horz : X11.Atom;
g_cursors : struct
{
all : [SystemCursor.Count]X11.Cursor;
#place all;
none : X11.Cursor;
arrow : X11.Cursor;
arrow_busy : X11.Cursor;
busy : X11.Cursor;
cross : X11.Cursor;
hand : X11.Cursor;
ibeam : X11.Cursor;
size : X11.Cursor;
size_nwse : X11.Cursor;
size_nesw : X11.Cursor;
size_horizontal : X11.Cursor;
size_vertical : X11.Cursor;
not_allowed : X11.Cursor;
size_left : X11.Cursor;
size_right : X11.Cursor;
size_top : X11.Cursor;
size_bottom : X11.Cursor;
size_top_left : X11.Cursor;
size_top_right : X11.Cursor;
size_bottom_left : X11.Cursor;
size_bottom_right : X11.Cursor;
};
g_initialized : bool;
g_error_buffer : [10000]u8 = ---;
g_message_queue : [..]Message;
SendClientMessage :: (window : X11.Window, type : X11.Atom, args : ..s64) #no_context
{
ctx : Context;
push_context, defer_pop ctx;
event : X11.XEvent;
event.xclient.type = X11.ClientMessage;
event.xclient.send_event = X11.True;
event.xclient.message_type = type;
event.xclient.window = window;
event.xclient.format = 32;
for i : 0..min(args.count, 5) - 1
{
event.xclient.data.l[i] = args[i];
}
root := X11.DefaultRootWindow(g_display);
X11.XSendEvent(g_display, root, X11.False, X11.SubstructureRedirectMask | X11.SubstructureNotifyMask, *event);
}
HandleXError :: (d : *X11.Display, event : *X11.XErrorEvent) -> s32 #c_call
{
ctx : Context;
push_context, defer_pop ctx;
X11.XGetErrorText(d, event.error_code, g_error_buffer.data, g_error_buffer.count);
log_error("Error: %", to_string(g_error_buffer.data));
return 0;
}
Initialize :: ()
{
if g_initialized
return;
defer g_initialized = true;
X11.XSetErrorHandler(HandleXError);
g_display = X11.XOpenDisplay(null);
assert(g_display != null);
g_wm_protocols = X11.XInternAtom(g_display, "WM_PROTOCOLS", X11.False);
g_wm_delete_window = X11.XInternAtom(g_display, "WM_DELETE_WINDOW", X11.False);
g_active_window = X11.XInternAtom(g_display, "_NET_ACTIVE_WINDOW", X11.False);
g_wm_state = X11.XInternAtom(g_display, "_NET_WM_STATE", X11.False);
g_wm_state_hidden = X11.XInternAtom(g_display, "_NET_WM_STATE_HIDDEN", X11.False);
g_wm_state_maximized_vert = X11.XInternAtom(g_display, "_NET_WM_STATE_MAXIMIZED_VERT", X11.False);
g_wm_state_maximized_horz = X11.XInternAtom(g_display, "_NET_WM_STATE_MAXIMIZED_HORZ", X11.False);
{
using g_cursors;
XC_left_ptr :: 68;
XC_bottom_left_corner :: 12;
XC_bottom_right_corner :: 14;
XC_bottom_side :: 16;
XC_left_side :: 70;
XC_top_left_corner :: 134;
XC_top_right_corner :: 136;
XC_top_side :: 138;
XC_right_side :: 96;
XC_sb_h_double_arrow :: 108;
XC_sb_v_double_arrow :: 116;
XC_watch :: 150;
XC_xterm :: 152;
XC_fleur :: 52;
XC_cross :: 30;
XC_hand2 :: 60;
black : X11.XColor;
no_data := u8.[0,0,0,0,0,0,0,0];
bitmap := X11.XCreateBitmapFromData(g_display, X11.DefaultRootWindow(g_display), no_data.data, 8, 8);
none = X11.XCreatePixmapCursor(g_display, bitmap, bitmap, *black, *black, 0, 0);
arrow = X11.XCreateFontCursor(g_display, XC_left_ptr);
arrow_busy = X11.XCreateFontCursor(g_display, XC_watch);
busy = X11.XCreateFontCursor(g_display, XC_watch);
cross = X11.XCreateFontCursor(g_display, XC_cross);
hand = X11.XCreateFontCursor(g_display, XC_hand2);
ibeam = X11.XCreateFontCursor(g_display, XC_xterm);
size = X11.XCreateFontCursor(g_display, XC_fleur);
size_nwse = X11.XCreateFontCursor(g_display, XC_top_left_corner);
size_nesw = X11.XCreateFontCursor(g_display, XC_top_right_corner);
size_horizontal = X11.XCreateFontCursor(g_display, XC_sb_h_double_arrow);
size_vertical = X11.XCreateFontCursor(g_display, XC_sb_v_double_arrow);
not_allowed = X11.XCreateFontCursor(g_display, XC_left_ptr);
size_left = X11.XCreateFontCursor(g_display, XC_left_side);
size_right = X11.XCreateFontCursor(g_display, XC_right_side);
size_top = X11.XCreateFontCursor(g_display, XC_top_side);
size_bottom = X11.XCreateFontCursor(g_display, XC_bottom_side);
size_top_left = X11.XCreateFontCursor(g_display, XC_top_left_corner);
size_top_right = X11.XCreateFontCursor(g_display, XC_top_right_corner);
size_bottom_left = X11.XCreateFontCursor(g_display, XC_bottom_left_corner);
size_bottom_right = X11.XCreateFontCursor(g_display, XC_bottom_right_corner);
}
}
#scope_export
using APIImpl :: struct
{
PlatformHandle :: X11.Window;
Window :: struct
{
visual : *X11.XVisualInfo;
x, y : s32;
viewport_width, viewport_height : s32;
handle : X11.Window;
last_mouse_button_release_time : [3]X11.Time; // In ms
prev_mouse_x, prev_mouse_y : s32;
}
GetPlatformHandle :: inline (window : *Window) -> PlatformHandle #must
#no_context
{
return window.handle;
}
ShowErrorBox :: inline (parent : *Window, fmt_str : string, args : ..Any)
{
assert(false);
}
ShowErrorBox :: inline (fmt_str : string, args : ..Any)
{
assert(false);
}
GetDisplays :: inline () -> []DisplayInfo #must
{
return .[];
}
CreateWindowExtraParams :: struct
{
}
CreateWindow :: (
title : string,
width : s32, height : s32,
x : s32 = Window_Default_Pos, y : s32 = Window_Default_Pos,
flags : WindowFlags = 0,
parent : *Window = null,
extra : CreateWindowExtraParams = .{}
) -> *Window #must
{
Initialize();
d := g_display;
X11.XLockDisplay(d);
defer X11.XUnlockDisplay(d);
x = ifx x == Window_Default_Pos then 0 else x;
y = ifx y == Window_Default_Pos then 0 else y;
parent_handle := ifx parent then parent.handle else X11.DefaultRootWindow(d);
assert(parent_handle != 0);
glx_attribs := s32.[
X11.GLX_RGBA,
X11.GLX_DOUBLEBUFFER,
X11.GLX_DEPTH_SIZE, 24,
X11.GLX_STENCIL_SIZE, 8,
X11.GLX_RED_SIZE, 8,
X11.GLX_GREEN_SIZE, 8,
X11.GLX_BLUE_SIZE, 8,
X11.GLX_SAMPLE_BUFFERS, 0,
X11.GLX_SAMPLES, 0,
0
];
screen_id := X11.DefaultScreen(g_display);
visual := X11.glXChooseVisual(g_display, screen_id, glx_attribs.data);
if !visual
return null;
event_mask : s32;
event_mask |= X11.ExposureMask;
event_mask |= X11.StructureNotifyMask;
event_mask |= X11.FocusChangeMask;
event_mask |= X11.KeyPressMask | X11.KeyReleaseMask;
event_mask |= X11.PointerMotionMask;
event_mask |= X11.ButtonPressMask | X11.ButtonReleaseMask;
event_mask |= X11.EnterWindowMask | X11.LeaveWindowMask;
attr : X11.XSetWindowAttributes;
attr.border_pixel = X11.XBlackPixel(g_display, screen_id);
attr.background_pixel = X11.XWhitePixel(g_display, screen_id);
attr.override_redirect = X11.True;
attr.colormap = X11.XCreateColormap(g_display, parent_handle, visual.visual, X11.AllocNone);
attr.event_mask = event_mask;
CWBlackPixel :: 1 << 1;
CWBorderPixel :: 1 << 3;
CWColormap :: 1 << 13;
CWEventMask :: 1 << 11;
if x < 0
x = 0;
if y < 0
y = 0;
if width < 0
width = 0;
if height < 0
height = 0;
handle := X11.XCreateWindow(
d, parent_handle,
xx x, xx y, xx width, xx height,
0, visual.depth, X11.InputOutput, visual.visual,
CWBlackPixel | CWColormap | CWBorderPixel | CWEventMask, *attr
);
if !handle
return null;
if title
{
c_title := temp_c_string(title);
X11.XStoreName(d, handle, c_title);
class_hint := X11.XAllocClassHint();
if class_hint
{
class_hint.res_name = c_title;
class_hint.res_class = c_title;
X11.XSetClassHint(d, handle, class_hint);
}
}
X11.XSelectInput(d, handle, event_mask);
X11.XSetWMProtocols(d, handle, *g_wm_delete_window, 1);
if !(flags & .Hidden)
X11.XMapWindow(d, handle);
window := New(Window);
window.handle = handle;
window.visual = visual;
window.x = x;
window.y = y;
window.viewport_width = width;
window.viewport_height = height;
array_add(*g_all_windows, window);
return window;
}
DestroyWindow :: inline (window : *Window) #no_context
{
// @Todo: find a way to handle DestroyNotify events when this is
// called at the end of the program when we stopped polling events
// On windows this is not a problem because this function will call our event
// callback directly.
X11.XDestroyWindow(g_display, window.handle);
}
CloseWindow :: inline (window : *Window) #no_context
{
X11.XUnmapWindow(g_display, window.handle);
}
PollMessages :: () -> []Message
{
g_message_queue.count = 0;
X11.XLockDisplay(g_display);
defer X11.XUnlockDisplay(g_display);
event : X11.XEvent;
while X11.XPending(g_display)
{
X11.XNextEvent(g_display, *event);
HandleXEvent(event);
}
return g_message_queue;
}
SetCursor :: (window : *Window, cursor : SystemCursor) #no_context
{
X11.XDefineCursor(g_display, window.handle, g_cursors.all[cursor]);
}
// @Todo
SetCursorConstraint :: (x : s32, y : s32, w : s32, h : s32) -> bool #no_context
{
return false;
}
// @Todo
RemoveCursorConstraint :: () -> bool #no_context
{
return false;
}
GetWindowTitle :: (window : *Window) -> string #must
{
result : *u8;
X11.XFetchName(g_display, window.handle, *result);
defer X11.XFree(result);
return copy_string(to_string(result));
}
SetWindowTitle :: (window : *Window, title : string)
{
c_title := temp_c_string(title);
X11.XStoreName(g_display, window.handle, c_title);
}
// @Todo
GetWindowScaleFactor :: inline (window : *Window) -> float #must #no_context
{
return 1;
}
GetViewportPosition :: inline (window : *Window) -> x : s32, y : s32 #no_context
{
ctx : Context;
push_context, defer_pop ctx;
root_window := X11.DefaultRootWindow(g_display);
child : X11.Window;
x, y : s32;
X11.XTranslateCoordinates(g_display, window.handle, root_window, 0, 0, *x, *y, *child);
return x, y;
}
SetViewportPosition :: (window : *Window, x : s32, y : s32) #no_context
{
change : X11.XWindowChanges;
change.x = x;
change.y = y;
X11.XConfigureWindow(g_display, window.handle, (1<<0) | (1<<1), *change);
}
GetViewportSize :: (window : *Window) -> w : s32, h : s32 #no_context
{
attr : X11.XWindowAttributes;
X11.XGetWindowAttributes(g_display, window.handle, *attr);
return attr.width, attr.height;
}
SetViewportSize :: (window : *Window, w : s32, h : s32) #no_context
{
change : X11.XWindowChanges;
change.width = w;
change.height = h;
X11.XConfigureWindow(g_display, window.handle, (1<<2) | (1<<3), *change);
}
GetFocusedWindow :: () -> *Window #must, non_fenetres_window : bool #no_context
{
result : X11.Window;
revert_to : s32;
X11.XGetInputFocus(g_display, *result, *revert_to);
window := GetWindowFromPlatformHandle(result);
return window, window == null && result != 0;
}
SetFocusedWindow :: (window : *Window) #no_context
{
X11.XSetInputFocus(g_display, window.handle, 0, 0);
}
IsMaximized :: (window : *Window) -> bool #must #no_context
{
actual_type : X11.Atom;
actual_format : s32;
num_states, remaining : u64;
states : *X11.Atom;
ok := X11.XGetWindowProperty(
g_display, window.handle,
g_wm_state,
0,
1024,
X11.False,
X11.XA_ATOM,
*actual_type,
*actual_format,
*num_states,
*remaining,
xx *states
);
defer X11.XFree(states);
if ok != X11.Success || num_states == 0 || actual_type != X11.XA_ATOM
return false;
for i : 0..num_states - 1
{
if states[i] == g_wm_state_maximized_horz
return true;
}
return false;
}
IsMinimized :: (window : *Window) -> bool #must #no_context
{
actual_type : X11.Atom;
actual_format : s32;
num_states, remaining : u64;
states : *X11.Atom;
ok := X11.XGetWindowProperty(
g_display, window.handle,
g_wm_state,
0,
1024,
X11.False,
X11.XA_ATOM,
*actual_type,
*actual_format,
*num_states,
*remaining,
xx *states
);
defer X11.XFree(states);
if ok != X11.Success || num_states == 0 || actual_type != X11.XA_ATOM
return false;
for i : 0..num_states - 1
{
if states[i] == g_wm_state_hidden
return true;
}
return false;
}
Maximize :: (window : *Window) #no_context
{
SendClientMessage(window.handle, g_wm_state, X11._NET_WM_STATE_REMOVE, xx g_wm_state_hidden);
SendClientMessage(window.handle, g_wm_state, X11._NET_WM_STATE_ADD, xx g_wm_state_maximized_vert, xx g_wm_state_maximized_horz);
}
Restore :: (window : *Window) #no_context
{
SendClientMessage(window.handle, g_wm_state, X11._NET_WM_STATE_REMOVE, xx g_wm_state_maximized_vert, xx g_wm_state_maximized_horz);
SendClientMessage(window.handle, g_wm_state, X11._NET_WM_STATE_REMOVE, xx g_wm_state_hidden);
SendClientMessage(window.handle, g_active_window, 1, 0);
}
Minimize :: (window : *Window) #no_context
{
SendClientMessage(window.handle, g_wm_state, X11._NET_WM_STATE_REMOVE, xx g_wm_state_maximized_vert, xx g_wm_state_maximized_horz);
X11.XIconifyWindow(g_display, window.handle, X11.XDefaultScreen(g_display));
}
SetWindowVisibility :: (window : *Window, visible : bool) #no_context
{
if visible
{
X11.XMapWindow(g_display, window.handle);
// Restore window to original position and size
SetViewportPosition(window, window.x, window.y);
SetViewportSize(window, window.viewport_width, window.viewport_height);
}
else
{
X11.XUnmapWindow(g_display, window.handle);
}
}
ShowAndFocusWindow :: (window : *Window) #no_context
{
SetWindowVisibility(window, true);
SetFocusedWindow(window);
}
ScreenToWindowPosition :: (window : *Window, x : s32, y : s32) -> x : s32, y : s32 #no_context
{
ctx : Context;
push_context, defer_pop ctx;
root_window := X11.DefaultRootWindow(g_display);
child : X11.Window;
result_x, result_y : s32;
X11.XTranslateCoordinates(g_display, root_window, window.handle, x, y, *result_x, *result_y, *child);
return result_x, result_y;
}
WindowToScreenPosition :: (window : *Window, x : s32, y : s32) -> x : s32, y : s32 #no_context
{
ctx : Context;
push_context, defer_pop ctx;
root_window := X11.DefaultRootWindow(g_display);
child : X11.Window;
result_x, result_y : s32;
X11.XTranslateCoordinates(g_display, window.handle, root_window, x, y, *result_x, *result_y, *child);
return result_x, result_y;
}
GetMousePosition :: () -> x : s32, y : s32 #no_context
{
x, y := GetMousePosition(null);
return x, y;
}
SetMousePosition :: (x : s32, y : s32) #no_context
{
SetMousePosition(null, x, y);
}
GetMousePosition :: (window : *Window) -> x : s32, y : s32 #no_context
{
ctx : Context;
push_context, defer_pop ctx;
handle := ifx window then window.handle else X11.DefaultRootWindow(g_display);
root, child : X11.Window;
x_root, y_root, x_win, y_win : s32;
mods : u32;
X11.XQueryPointer(g_display, handle, *root, *child, *x_root, *y_root, *x_win, *y_win, *mods);
return x_win, y_win;
}
SetMousePosition :: (window : *Window, x : s32, y : s32) #no_context
{
ctx : Context;
push_context, defer_pop ctx;
handle := ifx window then window.handle else X11.DefaultRootWindow(g_display);
X11.XWarpPointer(g_display, 0, handle, 0, 0, 0, 0, x, y);
}
SetMouseCapture :: (window : *Window, capture : bool) #no_context
{
// Causes the window system to freeze...
// if capture
// {
// X11.XGrabPointer(
// g_display, window.handle,
// X11.False,
// X11.PointerMotionMask | X11.ButtonPressMask | X11.ButtonReleaseMask,
// X11.GrabModeSync, X11.GrabModeSync,
// X11.None, X11.None, 0
// );
// }
// else
// {
// X11.XUngrabPointer(g_display, 0);
// }
}
GetClipboardTextData :: () -> string #must
{
return "";
}
SetClipboardTextData :: (text : string)
{
}
ClearClipboard :: ()
{
}
}
#scope_file
HandleXEvent :: (event : X11.XEvent)
{
GetKeyModsFromStateFlags :: inline (state : u32) -> KeyMods #must
{
result : KeyMods;
if state & X11.ShiftMask
result |= .Shift;
if state & X11.ControlMask
result |= .Ctrl;
if state & X11.Mod1Mask
result |= .Alt;
return result;
}
window := GetWindowFromPlatformHandle(event.xany.window);
if !window
return;
if event.type ==
{
case X11.ClientMessage;
msg_type := event.xclient.message_type;
if msg_type == g_wm_protocols
{
wm := cast(X11.Atom) event.xclient.data.l[0];
if wm == g_wm_delete_window
{
X11.XUnmapWindow(event.xany.display, window.handle);
msg : Message;
msg.kind = .Window_Closed;
msg.window = window;
array_add(*g_message_queue, msg);
}
}
case X11.KeyPress; #through;
case X11.KeyRelease;
// Filter out release+press events for repeat
if event.type == X11.KeyRelease && X11.XEventsQueued(g_display, X11.QueuedAfterReading)
{
next : X11.XEvent;
X11.XPeekEvent(g_display, *next);
if next.type == X11.KeyPress
&& next.xkey.time == event.xkey.time
&& next.xkey.keycode == event.xkey.keycode
{
X11.XNextEvent(g_display, *next);
sym := X11.XKeycodeToKeysym(next.xany.display, xx next.xkey.keycode, 0);
msg : Message;
msg.kind = .Key_Repeated;
msg.window = window;
msg.mods = GetKeyModsFromStateFlags(next.xkey.state);
msg.key_code = XKeySymToKeyCode(sym);
array_add(*g_message_queue, msg);
return;
}
}
sym := X11.XkbKeycodeToKeysym(event.xany.display, xx event.xkey.keycode, 0, 0);
msg : Message;
msg.kind = ifx event.type == X11.KeyPress then .Key_Pressed else .Key_Released;
msg.window = window;
msg.mods = GetKeyModsFromStateFlags(event.xkey.state);
msg.key_code = XKeySymToKeyCode(sym);
array_add(*g_message_queue, msg);
shift := cast(u32) ifx event.xkey.state & X11.ShiftMask then 1 else 0;
sym = X11.XkbKeycodeToKeysym(event.xany.display, xx event.xkey.keycode, 0, shift);
if event.type == X11.KeyPress && (sym < X11.XK_BackSpace || sym > X11.XK_Hyper_R)
{
msg : Message;
msg.kind = .Text_Input;
msg.window = window;
msg.codepoint = xx, no_check sym;
array_add(*g_message_queue, msg);
}
case X11.ButtonPress; #through;
case X11.ButtonRelease;
button := event.xbutton.button;
if button >= 4 && button <= 7
{
if event.type == X11.ButtonRelease
return;
msg : Message;
msg.kind = .Mouse_Wheel;
msg.window = window;
msg.mouse_wheel_x = ifx button == 7 then -1.0 else ifx button == 6 then 1.0;
msg.mouse_wheel_y = ifx button == 5 then -1.0 else ifx button == 4 then 1.0;
msg.mods = GetKeyModsFromStateFlags(event.xbutton.state);
//msg.mouse_wheel_x /= 120.0;
//msg.mouse_wheel_y /= 120.0;
array_add(*g_message_queue, msg);
return;
}
msg : Message;
msg.kind = ifx event.type == X11.ButtonPress then .Mouse_Button_Pressed else .Mouse_Button_Released;
msg.window = window;
msg.mods = GetKeyModsFromStateFlags(event.xbutton.state);
if button ==
{
case X11.Button1;
msg.mouse_button = .Left;
time_since_last_release := event.xbutton.time - window.last_mouse_button_release_time[0];
if msg.kind == .Mouse_Button_Released
window.last_mouse_button_release_time[0] = event.xbutton.time;
else if time_since_last_release <= g_double_click_time_ms
msg.kind = .Mouse_Button_Repeated;
case X11.Button2;
msg.mouse_button = .Middle;
time_since_last_release := event.xbutton.time - window.last_mouse_button_release_time[1];
if msg.kind == .Mouse_Button_Released
window.last_mouse_button_release_time[1] = event.xbutton.time;
else if time_since_last_release <= g_double_click_time_ms
msg.kind = .Mouse_Button_Repeated;
case X11.Button3;
msg.mouse_button = .Right;
time_since_last_release := event.xbutton.time - window.last_mouse_button_release_time[2];
if msg.kind == .Mouse_Button_Released
window.last_mouse_button_release_time[2] = event.xbutton.time;
else if time_since_last_release <= g_double_click_time_ms
msg.kind = .Mouse_Button_Repeated;
}
array_add(*g_message_queue, msg);
case X11.MotionNotify;
msg : Message;
msg.kind = .Mouse_Moved;
msg.window = window;
msg.mouse_x = event.xmotion.x;
msg.mouse_y = event.xmotion.y;
array_add(*g_message_queue, msg);
msg.kind = .Mouse_Raw_Moved;
msg.mouse_delta_x = msg.mouse_x - window.prev_mouse_x;
msg.mouse_delta_y = msg.mouse_y - window.prev_mouse_y;
array_add(*g_message_queue, msg);
window.prev_mouse_x = msg.mouse_x;
window.prev_mouse_y = msg.mouse_y;
case X11.EnterNotify;
msg : Message;
msg.kind = .Mouse_Entered_Window;
msg.window = window;
array_add(*g_message_queue, msg);
window.prev_mouse_x = event.xcrossing.x;
window.prev_mouse_y = event.xcrossing.y;
case X11.LeaveNotify;
msg : Message;
msg.kind = .Mouse_Left_Window;
msg.window = window;
array_add(*g_message_queue, msg);
case X11.ConfigureNotify;
msg : Message;
msg.window = window;
msg.window_x = event.xconfigure.x;
msg.window_y = event.xconfigure.y;
msg.viewport_w = event.xconfigure.width;
msg.viewport_h = event.xconfigure.height;
msg.window_w = msg.viewport_w;
msg.window_h = msg.viewport_h;
if window.x != msg.window_x
|| window.y != msg.window_y
{
msg.kind = .Window_Moved;
array_add(*g_message_queue, msg);
}
if window.viewport_width != msg.viewport_w
|| window.viewport_height != msg.viewport_h
{
msg.kind = .Window_Resized;
array_add(*g_message_queue, msg);
}
window.x = msg.window_x;
window.y = msg.window_y;
window.viewport_width = msg.viewport_w;
window.viewport_height = msg.viewport_h;
case X11.FocusIn;
msg : Message;
msg.kind = .Window_Received_Focus;
msg.window = window;
array_add(*g_message_queue, msg);
case X11.FocusOut;
msg : Message;
msg.kind = .Window_Lost_Focus;
msg.window = window;
array_add(*g_message_queue, msg);
case X11.DestroyNotify;
for g_all_windows
{
if it == window
{
remove it;
break;
}
}
free(window);
}
}
XKeySymToKeyCode :: (sym : X11.KeySym) -> KeyCode #must #no_context
{
#insert -> string
{
builder : String_Builder;
append(*builder, "if sym ==\n{\n");
for Key_Sym_To_Key_Code_Map
{
print_to_builder(*builder, "case %; return .%;\n", it.key_sym, it.key_code);
}
append(*builder, "}\n");
return builder_to_string(*builder);
};
return .Invalid;
}
KeyCodeToXKeySym :: (key_code : KeyCode) -> X11.KeySym #must #no_context
{
#insert -> string
{
builder : String_Builder;
append(*builder, "if key_code ==\n{\n");
for Key_Sym_To_Key_Code_Map
{
print_to_builder(*builder, "case .%; return %;\n", it.key_code, it.key_sym);
}
append(*builder, "}\n");
return builder_to_string(*builder);
};
return 0;
}
KeySymKeyCodePair :: struct
{
key_sym : X11.KeySym;
key_code : KeyCode;
}
// https://www.cl.cam.ac.uk/~mgk25/ucs/keysymdef.h
Key_Sym_To_Key_Code_Map :: KeySymKeyCodePair.[
.{X11.XK_BackSpace, .Backspace},
.{X11.XK_Tab, .Tab},
.{X11.XK_Clear, .Clear},
.{X11.XK_Return, .Return},
.{X11.XK_Pause, .Pause},
.{X11.XK_Escape, .Escape},
.{X11.XK_Delete, .Delete},
.{X11.XK_Scroll_Lock, .Scroll_Lock},
.{X11.XK_Caps_Lock, .Caps_Lock},
.{0xff7f, .Num_Lock},
.{X11.XK_Home, .Home},
.{X11.XK_Left, .Left},
.{X11.XK_Up, .Up},
.{X11.XK_Right, .Right},
.{X11.XK_Down, .Down},
.{X11.XK_Page_Up, .Page_Up},
.{X11.XK_Page_Down, .Page_Down},
.{0xff63, .Insert},
.{X11.XK_End, .End},
.{X11.XK_F1, .F1},
.{X11.XK_F2, .F2},
.{X11.XK_F3, .F3},
.{X11.XK_F4, .F4},
.{X11.XK_F5, .F5},
.{X11.XK_F6, .F6},
.{X11.XK_F7, .F7},
.{X11.XK_F8, .F8},
.{X11.XK_F9, .F9},
.{X11.XK_F10, .F10},
.{X11.XK_F11, .F11},
.{X11.XK_F12, .F12},
.{X11.XK_Shift_L, .Left_Shift},
.{X11.XK_Shift_R, .Right_Shift},
.{X11.XK_Control_L, .Left_Ctrl},
.{X11.XK_Control_R, .Right_Ctrl},
.{X11.XK_Alt_L, .Left_Alt},
.{X11.XK_Alt_R, .Right_Alt},
.{X11.XK_Super_L, .Left_Super},
.{X11.XK_Super_R, .Right_Super},
.{X11.XK_space, .Space},
.{X11.XK_grave, .Backtick},
.{X11.XK_minus, .OEM_Minus},
.{X11.XK_equal, .OEM_Plus},
.{X11.XK_backslash, .Backslash},
.{X11.XK_bracketleft, .Open_Bracket},
.{X11.XK_braceleft, .Open_Bracket},
.{X11.XK_bracketright, .Close_Bracket},
.{X11.XK_braceright, .Close_Bracket},
.{X11.XK_apostrophe, .Quote},
.{X11.XK_semicolon, .Semicolon},
.{X11.XK_comma, .OEM_Comma},
.{X11.XK_period, .OEM_Period},
.{X11.XK_slash, .Slash},
.{X11.XK_0, .Zero},
.{X11.XK_1, .One},
.{X11.XK_2, .Two},
.{X11.XK_3, .Three},
.{X11.XK_4, .Four},
.{X11.XK_5, .Five},
.{X11.XK_6, .Six},
.{X11.XK_7, .Seven},
.{X11.XK_8, .Eight},
.{X11.XK_9, .Nine},
.{X11.XK_A, .A},
.{X11.XK_B, .B},
.{X11.XK_C, .C},
.{X11.XK_D, .D},
.{X11.XK_E, .E},
.{X11.XK_F, .F},