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minor img transform fixes

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This commit is contained in:
Gabor Kiss-Vamosi 2019-11-08 22:58:09 +01:00
parent e29210889a
commit 42cde31888
1 changed files with 3 additions and 1 deletions
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4
src/lv_objx/lv_img.c
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@ -273,6 +273,7 @@ void lv_img_set_angle(lv_obj_t * img, int16_t angle)
lv_img_ext_t * ext = lv_obj_get_ext_attr(img);
if(angle == ext->angle) return;
lv_obj_invalidate(img);
ext->angle = angle;
lv_obj_refresh_ext_draw_pad(img);
lv_obj_invalidate(img);
@ -295,6 +296,7 @@ void lv_img_set_zoom(lv_obj_t * img, uint16_t zoom)
if(zoom == 0) zoom = 1;
lv_obj_invalidate(img);
ext->zoom = zoom;
lv_obj_refresh_ext_draw_pad(img);
lv_obj_invalidate(img);
@ -531,7 +533,7 @@ static lv_res_t lv_img_signal(lv_obj_t * img, lv_signal_t sign, void * param)
}
} else if(sign == LV_SIGNAL_REFR_EXT_DRAW_PAD) {
/*If the image has angle provide enough room for the rotated corners */
if(ext->angle && ext->zoom) {
if(ext->angle || ext->zoom != LV_IMG_ZOOM_NONE) {
lv_sqrt_res_t ds;
lv_sqrt(ext->w * ext->w + ext->h * ext->h, &ds);
ds.i = (ds.i * ext->zoom + 0) >> 8; /*+10 to be sure anything won't be clipped*/