97 lines
3.1 KiB
Plaintext
97 lines
3.1 KiB
Plaintext
module ugui::sdl::ren;
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import std::io;
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import std::ascii;
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import ugui;
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import sdl3;
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<*
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@param [&inout] ctx
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*>
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fn bool? Ctx.handle_events(&ctx)
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{
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bool quit = false;
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ugui::ModKeys mod_set, mod_reset;
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ugui::MouseButtons btn;
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sdl::Event e;
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while (sdl::poll_event(&e)) {
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switch (e.type) {
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case EVENT_QUIT:
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quit = true;
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case EVENT_KEY_UP:
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ctx.input_key_release();
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nextcase;
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case EVENT_KEY_DOWN:
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ctx.input_key_press();
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if (e.key.repeat) ctx.input_key_repeat();
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bool down = e.type == EVENT_KEY_DOWN;
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switch (e.key.key) {
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case K_RCTRL: mod_set.rctrl = down; mod_reset.rctrl = !down;
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case K_LCTRL: mod_set.lctrl = down; mod_reset.lctrl = !down;
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case K_RSHIFT: mod_set.rshift = down; mod_reset.rshift = !down;
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case K_LSHIFT: mod_set.lshift = down; mod_reset.lshift = !down;
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case K_BACKSPACE: mod_set.bkspc = down; mod_reset.bkspc = !down;
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case K_DELETE: mod_set.del = down; mod_reset.del = !down;
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case K_HOME: mod_set.home = down; mod_reset.home = !down;
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case K_END: mod_set.end = down; mod_reset.end = !down;
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case K_UP: mod_set.up = down; mod_reset.up = !down;
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case K_DOWN: mod_set.down = down; mod_reset.down = !down;
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case K_LEFT: mod_set.left = down; mod_reset.left = !down;
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case K_RIGHT: mod_set.right = down; mod_reset.right = !down;
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}
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ctx.input_mod_keys(mod_set, true);
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ctx.input_mod_keys(mod_reset, false);
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// pressing ctrl+key or alt+key does not generate a character as such no
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// TEXT_INPUT event is generated. When those keys are pressed we have to
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// do manual text input, bummer
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ModKeys mod = ctx.get_mod();
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if (e.type == EVENT_KEY_DOWN && (mod.lctrl || mod.rctrl)) {
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if (ascii::is_alnum_m((uint)e.key.key)) {
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ctx.input_char((char)e.key.key);
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}
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}
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if (e.type == EVENT_KEY_DOWN && e.key.key == K_RETURN) ctx.input_char('\n');
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case EVENT_TEXT_INPUT:
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ctx.input_text_utf8(e.text.text.str_view());
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case EVENT_WINDOW_RESIZED:
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ctx.input_window_size((short)e.window.data1, (short)e.window.data2)!;
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case EVENT_WINDOW_FOCUS_GAINED:
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ctx.input_changefocus(true);
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case EVENT_WINDOW_FOCUS_LOST:
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ctx.input_changefocus(false);
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case EVENT_MOUSE_MOTION:
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ctx.input_mouse_abs((short)e.motion.x, (short)e.motion.y);
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case EVENT_MOUSE_WHEEL:
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ctx.input_mouse_wheel((short)e.wheel.integer_x, (short)e.wheel.integer_y);
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case EVENT_MOUSE_BUTTON_DOWN: nextcase;
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case EVENT_MOUSE_BUTTON_UP:
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sdl::MouseButtonFlags mb = sdl::get_mouse_state(null, null);
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btn = {
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.btn_left = !!(mb & BUTTON_LMASK),
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.btn_right = !!(mb & BUTTON_RMASK),
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.btn_middle = !!(mb & BUTTON_MMASK),
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.btn_4 = !!(mb & BUTTON_X1MASK),
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.btn_5 = !!(mb & BUTTON_X2MASK),
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};
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ctx.input_mouse_button(btn);
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case EVENT_POLL_SENTINEL: break;
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default:
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io::eprintfn("unhandled event: %s", e.type);
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}
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}
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return quit;
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}
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fn void pre(sdl::Window* win) => sdl::start_text_input(win);
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// TODO: this has to be a function of Ctx if we want to set the fps internally
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fn void wait_events(uint timeout_ms = 0)
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{
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sdl::wait_event_timeout(null, timeout_ms);
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} |