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Add button and motion events.

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This commit is contained in:
Roz K
2022-12-24 06:36:20 +01:00
parent abd5989de8
commit 65b25c8be3
5 changed files with 232 additions and 49 deletions
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164
cpp/events/events_x11.cpp
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@ -18,27 +18,153 @@
extern Display * rk_display;
extern Window rk_window;
extern XIC rk_input_context;
unsigned rk_events_mask = KeyPressMask | KeyReleaseMask;
unsigned rk_events_mask = FocusChangeMask |
KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask;
static XIM rk_input_manager = nullptr;
static XIC rk_input_context = nullptr;
static bool rk_focused = false;
static bool rk_keyboard_autorepeat = false;
static XKeyboardState rk_previous_keyboard_state;
static int rk_previous_accel_numerator, rk_accel_numerator = 1;
static int rk_previous_accel_denominator, rk_accel_denominator = 1;
static int rk_previous_threshold, rk_accel_threshold = 0;
static void rk_backup_setup() {
XGetKeyboardControl(rk_display, &rk_previous_keyboard_state);
XGetPointerControl(rk_display,
&rk_previous_accel_numerator, &rk_previous_accel_denominator, &rk_previous_threshold);
}
static void rk_restore_setup() {
if (AutoRepeatModeOn == rk_previous_keyboard_state.global_auto_repeat) {
XAutoRepeatOn(rk_display);
} else {
XAutoRepeatOff(rk_display);
}
XChangePointerControl(rk_display, True, True,
rk_previous_accel_numerator, rk_previous_accel_denominator, rk_previous_threshold);
}
static void rk_apply_setup() {
if (rk_keyboard_autorepeat) {
XAutoRepeatOn(rk_display);
} else {
XAutoRepeatOff(rk_display);
}
XChangePointerControl(rk_display, True, True, rk_accel_numerator, rk_accel_denominator, rk_accel_threshold);
}
bool rk_initialize_events() {
rk_focused = false;
rk_backup_setup();
rk_keyboard_autorepeat = (AutoRepeatModeOn == rk_previous_keyboard_state.global_auto_repeat);
rk_accel_numerator = rk_previous_accel_numerator;
rk_accel_denominator = rk_previous_accel_denominator;
rk_accel_threshold = rk_previous_threshold;
rk_input_manager = XOpenIM(rk_display, nullptr, nullptr, nullptr);
if (!rk_input_manager) {
return false;
}
rk_input_context = XCreateIC(rk_input_manager,
XNInputStyle, XIMPreeditNone | XIMStatusNone,
XNClientWindow, rk_window,
NULL);
if (!rk_input_context) {
return false;
}
XSetICFocus(rk_input_context);
return true;
}
void rk_terminate_events() {
rk_restore_setup();
if (rk_input_context) {
XUnsetICFocus(rk_input_context);
XDestroyIC(rk_input_context);
rk_input_context = nullptr;
}
if (rk_input_manager) {
XCloseIM(rk_input_manager);
rk_input_manager = nullptr;
}
}
static void rk_focus_in() {
if (!rk_focused) {
rk_backup_setup();
rk_apply_setup();
XGrabPointer(rk_display, rk_window, True,
ButtonPressMask | ButtonReleaseMask | PointerMotionMask,
GrabModeAsync, GrabModeAsync, rk_window, None, CurrentTime);
rk_focused = true;
}
}
static void rk_focus_out() {
if (rk_focused) {
XUngrabPointer(rk_display, CurrentTime);
rk_restore_setup();
rk_focused = false;
}
}
void rk_set_autorepeat(
rk_bool autorepeat) {
rk_keyboard_autorepeat = autorepeat;
if (rk_focused) {
rk_apply_setup();
}
}
void rk_set_acceleration(
rk_uint numerator,
rk_uint denominator,
rk_uint threshold) {
rk_accel_numerator = numerator;
rk_accel_denominator = denominator;
rk_accel_threshold = threshold;
if (rk_focused) {
rk_apply_setup();
}
}
rk_uint rk_consume_events(
rk_event * events,
rk_uint max_events) {
static wchar_t string[256];
if (!events || !max_events) {
return 0;
}
XEvent x11_event;
unsigned nevents = 0;
wchar_t string[256];
KeySym keysym;
Status status;
unsigned nevents = 0;
while (nevents < max_events && XCheckWindowEvent(rk_display, rk_window, rk_events_mask, &x11_event)) {
if (XFilterEvent(&x11_event, 0)) {
continue;
}
rk_event & event = events[nevents++];
rk_event & event = events[nevents];
switch (x11_event.type) {
case FocusIn:
if (NotifyNormal == x11_event.xfocus.mode) {
rk_focus_in();
event.type = RK_EVENT_FOCUS_IN;
++nevents;
}
break;
case FocusOut:
if (NotifyNormal == x11_event.xfocus.mode) {
rk_focus_out();
event.type = RK_EVENT_FOCUS_OUT;
++nevents;
}
break;
case KeyPress:
event.type = RK_EVENT_KEY_PRESS;
event.key.code = x11_event.xkey.keycode;
@ -61,20 +187,36 @@ rk_uint rk_consume_events(
event.key.character = 0;
break;
}
++nevents;
break;
case KeyRelease:
event.type = RK_EVENT_KEY_RELEASE;
event.key.code = x11_event.xkey.keycode;
event.key.symbol = XLookupKeysym(&x11_event.xkey, 0);
event.key.character = 0;
++nevents;
break;
case ButtonPress:
event.type = RK_EVENT_BUTTON_PRESS;
event.button.index = x11_event.xbutton.button;
++nevents;
break;
case ButtonRelease:
event.type = RK_EVENT_BUTTON_RELEASE;
event.button.index = x11_event.xbutton.button;
++nevents;
break;
case MotionNotify:
event.type = RK_EVENT_MOTION;
event.motion.x = x11_event.xbutton.x;
event.motion.y = x11_event.xbutton.y;
++nevents;
break;
}
}
return nevents;
}
void rk_flush_events() {
XEvent x11_event;
while (XCheckWindowEvent(rk_display, rk_window, rk_events_mask, &x11_event)) {
}
}