scrollbar.h (1382B)
1 /* 2 * Copyright (c) 2021-2024 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_SCROLLBAR_H 18 #define LTK_SCROLLBAR_H 19 20 #include "widget.h" 21 #include "window.h" 22 23 #define LTK_SCROLLBAR_SIGNAL_SCROLL -1 24 #define LTK_SCROLLBAR_SIGNAL_INVALID -2 25 26 typedef struct { 27 ltk_widget widget; 28 double cur_pos; 29 int virtual_size; 30 int last_mouse_x; 31 int last_mouse_y; 32 ltk_orientation orient; 33 } ltk_scrollbar; 34 35 void ltk_scrollbar_set_virtual_size(ltk_scrollbar *scrollbar, int virtual_size); 36 ltk_scrollbar *ltk_scrollbar_create(ltk_window *window, ltk_orientation orient); 37 void ltk_scrollbar_scroll(ltk_widget *self, int delta, int scaled); 38 39 #endif /* LTK_SCROLLBAR_H */