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feat(canvas) add lv_canvas_set_px_opa

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fixes #2665
This commit is contained in:
Gabor Kiss-Vamosi
2021-10-19 13:44:40 +02:00
parent dfa4f5cff5
commit b3b3ffc2b3
5 changed files with 38 additions and 7 deletions
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2
src/extra/libs/qrcode/lv_qrcode.c
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@@ -120,7 +120,7 @@ lv_res_t lv_qrcode_update(lv_obj_t * qrcode, const void * data, uint32_t data_le
if(aligned == false) {
c.full = a ? 0 : 1;
lv_canvas_set_px(qrcode, x, y, c);
lv_canvas_set_px_color(qrcode, x, y, c);
} else {
if(!a) b |= (1 << (7 - p));
p++;

12
src/widgets/lv_canvas.c
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@@ -74,7 +74,7 @@ void lv_canvas_set_buffer(lv_obj_t * obj, void * buf, lv_coord_t w, lv_coord_t h
lv_img_set_src(obj, &canvas->dsc);
}
void lv_canvas_set_px(lv_obj_t * obj, lv_coord_t x, lv_coord_t y, lv_color_t c)
void lv_canvas_set_px_color(lv_obj_t * obj, lv_coord_t x, lv_coord_t y, lv_color_t c)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
@@ -84,6 +84,16 @@ void lv_canvas_set_px(lv_obj_t * obj, lv_coord_t x, lv_coord_t y, lv_color_t c)
lv_obj_invalidate(obj);
}
void lv_canvas_set_px_opa(lv_obj_t * obj, lv_coord_t x, lv_coord_t y, lv_opa_t opa)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_canvas_t * canvas = (lv_canvas_t *)obj;
lv_img_buf_set_px_alpha(&canvas->dsc, x, y, opa);
lv_obj_invalidate(obj);
}
void lv_canvas_set_palette(lv_obj_t * obj, uint8_t id, lv_color_t c)
{
LV_ASSERT_OBJ(obj, MY_CLASS);

22
src/widgets/lv_canvas.h
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@@ -70,9 +70,27 @@ void lv_canvas_set_buffer(lv_obj_t * canvas, void * buf, lv_coord_t w, lv_coord_
* @param canvas
* @param x x coordinate of the point to set
* @param y x coordinate of the point to set
* @param c color of the point
* @param c color of the pixel
*/
void lv_canvas_set_px(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_color_t c);
void lv_canvas_set_px_color(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_color_t c);
/**
* DEPRECATED: added only for backward compatibility
*/
static inline void lv_canvas_set_px(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_color_t c)
{
lv_canvas_set_px_color(canvas, x, y, c);
}
/**
* Set the opacity of a pixel on the canvas
* @param canvas
* @param x x coordinate of the point to set
* @param y x coordinate of the point to set
* @param opa opacity of the pixel (0..255)
*/
void lv_canvas_set_px_opa(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_opa_t opa);
/**
* Set the palette color of a canvas with index format. Valid only for `LV_IMG_CF_INDEXED1/2/4/8`