window.h (2930B)
1 /* 2 * Copyright (c) 2020-2024 lumidify <nobody@lumidify.org> 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #ifndef LTK_WINDOW_H 18 #define LTK_WINDOW_H 19 20 #include <stddef.h> 21 #include "event.h" 22 #include "graphics.h" 23 #include "rect.h" 24 #include "surface_cache.h" 25 #include "widget.h" 26 27 #define LTK_WINDOW_SIGNAL_CLOSE -1 28 #define LTK_WINDOW_SIGNAL_INVALID -2 29 30 typedef struct ltk_window { 31 ltk_widget widget; 32 ltk_renderwindow *renderwindow; 33 ltk_surface_cache *surface_cache; 34 ltk_surface *surface; 35 /* FIXME: check if these are reset properly if widget is deleted */ 36 ltk_widget *root_widget; 37 ltk_widget *hover_widget; 38 ltk_widget *active_widget; 39 ltk_widget *pressed_widget; 40 41 ltk_rect rect; 42 ltk_rect dirty_rect; 43 /* FIXME: generic array */ 44 ltk_widget **popups; 45 size_t popups_num; 46 size_t popups_alloc; 47 /* This is a hack so ltk_window_unregister_all_popups can 48 call hide for all popup widgets even if the hide function 49 already calls ltk_window_unregister_popup */ 50 char popups_locked; 51 } ltk_window; 52 53 /* FIXME: which of these should be internal to LTK? */ 54 void ltk_window_handle_event(ltk_window *window, ltk_event *event); 55 void ltk_window_fake_motion_event(ltk_window *window, int x, int y); 56 57 void ltk_window_invalidate_rect(ltk_window *window, ltk_rect rect); 58 void ltk_window_invalidate_widget_rect(ltk_window *window, ltk_widget *widget); 59 60 void ltk_window_set_root_widget(ltk_window *window, ltk_widget *widget); 61 void ltk_window_set_hover_widget(ltk_window *window, ltk_widget *widget, ltk_motion_event *event); 62 void ltk_window_set_active_widget(ltk_window *window, ltk_widget *widget); 63 void ltk_window_set_pressed_widget(ltk_window *window, ltk_widget *widget, int release); 64 65 /* IMPORTANT: Callers must call ltk_widget_recalc_ideal_size and ltk_widget_resize 66 first to take DPI changes into account. It wouldn't make sense for ltk_window_register_popup 67 to call these functions because the calling function usually needs to know the actual size 68 of the popup to determine where to place it. */ 69 void ltk_window_register_popup(ltk_window *window, ltk_widget *popup); 70 void ltk_window_unregister_popup(ltk_window *window, ltk_widget *popup); 71 void ltk_window_unregister_all_popups(ltk_window *window); 72 73 #endif /* LTK_WINDOW_H */