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#include "cru/platform/gui/xcb/Window.h"
#include "cru/platform/gui/Window.h"
#include "cru/platform/gui/xcb/UiApplication.h"
#include <xcb/xcb.h>
#include <cinttypes>
#include <cstdint>
namespace {
// TODO: Remove this demo function.
/* print names of modifiers present in mask */
void print_modifiers(uint32_t mask) {
const char *MODIFIERS[] = {
"Shift", "Lock", "Ctrl", "Alt", "Mod2", "Mod3", "Mod4",
"Mod5", "Button1", "Button2", "Button3", "Button4", "Button5"};
printf("Modifier mask: ");
for (const char **modifier = MODIFIERS; mask; mask >>= 1, ++modifier) {
if (mask & 1) {
printf("%s", *modifier);
}
}
printf("\n");
}
} // namespace
namespace cru::platform::gui::xcb {
XcbWindow::XcbWindow(XcbUiApplication *application)
: application_(application) {
application->RegisterWindow(this);
}
XcbWindow::~XcbWindow() { application_->UnregisterWindow(this); }
IEvent<MouseEnterLeaveType> *XcbWindow::MouseEnterLeaveEvent() {
return &mouse_enter_leave_event_;
}
IEvent<Point> *XcbWindow::MouseMoveEvent() { return &mouse_move_event_; }
std::optional<xcb_window_t> XcbWindow::GetXcbWindow() { return xcb_window_; }
xcb_window_t XcbWindow::DoCreateWindow() {
auto connection = application_->GetXcbConnection();
auto screen = application_->GetFirstXcbScreen();
auto xcb_window = xcb_generate_id(connection);
uint32_t mask = XCB_CW_EVENT_MASK;
uint32_t values[1] = {
XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_BUTTON_PRESS |
XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION |
XCB_EVENT_MASK_ENTER_WINDOW | XCB_EVENT_MASK_LEAVE_WINDOW |
XCB_EVENT_MASK_KEY_PRESS | XCB_EVENT_MASK_KEY_RELEASE};
xcb_create_window(connection, XCB_COPY_FROM_PARENT, xcb_window, screen->root,
100, 100, 400, 200, 10, XCB_WINDOW_CLASS_INPUT_OUTPUT,
screen->root_visual, mask, values);
return xcb_window;
}
void XcbWindow::HandleEvent(xcb_generic_event_t *event) {
switch (event->response_type & ~0x80) {
case XCB_EXPOSE: {
xcb_expose_event_t *expose = (xcb_expose_event_t *)event;
printf("Window %" PRIu32
" exposed. Region to be redrawn at location (%" PRIu16 ",%" PRIu16
"), with dimension (%" PRIu16 ",%" PRIu16 ")\n",
expose->window, expose->x, expose->y, expose->width,
expose->height);
break;
}
case XCB_BUTTON_PRESS: {
xcb_button_press_event_t *bp = (xcb_button_press_event_t *)event;
print_modifiers(bp->state);
switch (bp->detail) {
case 4:
printf("Wheel Button up in window %" PRIu32
", at coordinates (%" PRIi16 ",%" PRIi16 ")\n",
bp->event, bp->event_x, bp->event_y);
break;
case 5:
printf("Wheel Button down in window %" PRIu32
", at coordinates (%" PRIi16 ",%" PRIi16 ")\n",
bp->event, bp->event_x, bp->event_y);
break;
default:
printf("Button %" PRIu8 " pressed in window %" PRIu32
", at coordinates (%" PRIi16 ",%" PRIi16 ")\n",
bp->detail, bp->event, bp->event_x, bp->event_y);
break;
}
break;
}
case XCB_BUTTON_RELEASE: {
xcb_button_release_event_t *br = (xcb_button_release_event_t *)event;
print_modifiers(br->state);
printf("Button %" PRIu8 " released in window %" PRIu32
", at coordinates (%" PRIi16 ",%" PRIi16 ")\n",
br->detail, br->event, br->event_x, br->event_y);
break;
}
case XCB_MOTION_NOTIFY: {
xcb_motion_notify_event_t *motion = (xcb_motion_notify_event_t *)event;
Point point(motion->event_x, motion->event_y);
mouse_move_event_.Raise(point);
break;
}
case XCB_ENTER_NOTIFY: {
xcb_enter_notify_event_t *enter = (xcb_enter_notify_event_t *)event;
mouse_enter_leave_event_.Raise(MouseEnterLeaveType::Enter);
Point point(enter->event_x, enter->event_y);
mouse_move_event_.Raise(point);
break;
}
case XCB_LEAVE_NOTIFY: {
xcb_leave_notify_event_t *leave = (xcb_leave_notify_event_t *)event;
// Should we do this?
// Point point(leave->event_x, leave->event_y);
// mouse_move_event_.Raise(point);
mouse_enter_leave_event_.Raise(MouseEnterLeaveType::Leave);
break;
}
case XCB_KEY_PRESS: {
xcb_key_press_event_t *kp = (xcb_key_press_event_t *)event;
print_modifiers(kp->state);
printf("Key pressed in window %" PRIu32 "\n", kp->event);
break;
}
case XCB_KEY_RELEASE: {
xcb_key_release_event_t *kr = (xcb_key_release_event_t *)event;
print_modifiers(kr->state);
printf("Key released in window %" PRIu32 "\n", kr->event);
break;
}
default:
/* Unknown event type, ignore it */
printf("Unknown event: %" PRIu8 "\n", event->response_type);
break;
}
}
std::optional<xcb_window_t> XcbWindow::GetEventWindow(
xcb_generic_event_t *event) {
switch (event->response_type & ~0x80) {
case XCB_EXPOSE: {
xcb_expose_event_t *expose = (xcb_expose_event_t *)event;
return expose->window;
}
case XCB_BUTTON_PRESS: {
xcb_button_press_event_t *bp = (xcb_button_press_event_t *)event;
return bp->event;
}
case XCB_BUTTON_RELEASE: {
xcb_button_release_event_t *br = (xcb_button_release_event_t *)event;
return br->event;
}
case XCB_MOTION_NOTIFY: {
xcb_motion_notify_event_t *motion = (xcb_motion_notify_event_t *)event;
return motion->event;
}
case XCB_ENTER_NOTIFY: {
xcb_enter_notify_event_t *enter = (xcb_enter_notify_event_t *)event;
return enter->event;
}
case XCB_LEAVE_NOTIFY: {
xcb_leave_notify_event_t *leave = (xcb_leave_notify_event_t *)event;
return leave->event;
}
case XCB_KEY_PRESS: {
xcb_key_press_event_t *kp = (xcb_key_press_event_t *)event;
return kp->event;
}
case XCB_KEY_RELEASE: {
xcb_key_release_event_t *kr = (xcb_key_release_event_t *)event;
return kr->event;
}
default:
return std::nullopt;
}
}
} // namespace cru::platform::gui::xcb
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