rt-thread-official/components/gui/include/rtgui/dc_trans.h

41 lines
1.1 KiB
C

#ifndef __RTGUI_DC_TRANS_H__
#define __RTGUI_DC_TRANS_H__
#include <rtgui/dc.h>
#include <rtgui/matrix.h>
struct rtgui_dc_trans;
/** Create a dc translator on the dc @owner
*
* @return RT_NULL is there is no memory.
*/
struct rtgui_dc_trans* rtgui_dc_trans_create(struct rtgui_dc *owner);
/** Rotate the dc clockwise.
*
* @param degree the degree to rotate.
*/
void rtgui_dc_trans_rotate(struct rtgui_dc_trans *dct, double degree);
void rtgui_dc_trans_set_aa(struct rtgui_dc_trans *dct, int use_aa);
void rtgui_dc_trans_scale(struct rtgui_dc_trans *dct, double sx, double sy);
/** Move the dc
*
* The unit of @dx and @dy is pixel.
*/
void rtgui_dc_trans_move(struct rtgui_dc_trans *dct, int dx, int dy);
void rtgui_dc_trans_get_new_wh(struct rtgui_dc_trans *dct, int *new_w, int *new_h);
void rtgui_dc_trans_blit(struct rtgui_dc_trans *dct,
struct rtgui_point *dc_point,
struct rtgui_dc *dest,
struct rtgui_rect *rect);
void rtgui_dc_trans_destroy(struct rtgui_dc_trans *dct);
#endif