89 lines
3.2 KiB
C
89 lines
3.2 KiB
C
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/* deshab/cursor.h - 鼠标光标管理
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*
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* 整合 desktop_app.h 的 da_cursor 结构与 save/restore/draw 操作，统一前缀为 dsb_。
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* 采用 save/restore 模式实现光标移动：绘制前保存背景，移动后恢复。
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*/
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#ifndef DESHAB_CURSOR_H
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#define DESHAB_CURSOR_H
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#include "types.h"
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#include "app.h"
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#include "fb.h"
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#define DSB_CURSOR_SIZE 24
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static const u8 dsb_cursor_shape[24][24] = {
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{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{1,1,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{1,1,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{1,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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};
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typedef struct dsb_cursor {
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u32 save[DSB_CURSOR_SIZE * DSB_CURSOR_SIZE];
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int saved;
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int old_x, old_y;
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int mx, my;
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int btn;
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} dsb_cursor;
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static inline void dsb_cursor_init(dsb_cursor *c, i64 fb_w, i64 fb_h) {
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for (int i = 0; i < DSB_CURSOR_SIZE * DSB_CURSOR_SIZE; i++) c->save[i] = 0;
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c->saved = 0;
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c->old_x = -1;
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c->old_y = -1;
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c->mx = (int)(fb_w / 2);
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c->my = (int)(fb_h / 2);
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c->btn = 0;
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}
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static inline void dsb_cursor_save(dsb_app_context *ac, dsb_cursor *c) {
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for (int r = 0; r < DSB_CURSOR_SIZE; r++)
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for (int col = 0; col < DSB_CURSOR_SIZE; col++) {
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int x = c->mx + col, y = c->my + r;
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c->save[r * DSB_CURSOR_SIZE + col] = dsb_pixel_read(ac, x, y);
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}
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c->saved = 1;
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c->old_x = c->mx;
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c->old_y = c->my;
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}
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static inline void dsb_cursor_restore(dsb_app_context *ac, dsb_cursor *c) {
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if (!c->saved) return;
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for (int r = 0; r < DSB_CURSOR_SIZE; r++)
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for (int col = 0; col < DSB_CURSOR_SIZE; col++) {
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int x = c->old_x + col, y = c->old_y + r;
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dsb_pixel(ac, x, y, c->save[r * DSB_CURSOR_SIZE + col]);
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}
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c->saved = 0;
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}
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static inline void dsb_cursor_draw(dsb_app_context *ac, dsb_cursor *c, u32 color) {
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for (int r = 0; r < DSB_CURSOR_SIZE; r++)
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for (int col = 0; col < DSB_CURSOR_SIZE; col++)
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if (dsb_cursor_shape[r][col])
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dsb_pixel(ac, c->mx + col, c->my + r, color);
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}
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#endif /* DESHAB_CURSOR_H */
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