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img: fix zooming and rotateing mosaic images

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Gabor Kiss-Vamosi 2020-08-24 09:50:05 +02:00
parent 848c468b06
commit 961f295b94
2 changed files with 60 additions and 33 deletions
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1
CHANGELOG.md
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@ -14,6 +14,7 @@
- Fix color bleeding on border drawing - Fix color bleeding on border drawing
- Fix using 'LV_SCROLLBAR_UNHIDE' after 'LV_SCROLLBAR_ON' - Fix using 'LV_SCROLLBAR_UNHIDE' after 'LV_SCROLLBAR_ON'
- Fix croping of last column/row if an image is zoomed - Fix croping of last column/row if an image is zoomed
- Fix zooming and rotateing mosaic images
## v7.3.1 (18.08.2020) ## v7.3.1 (18.08.2020)

92
src/lv_widgets/lv_img.c
View File

@ -303,8 +303,10 @@ void lv_img_set_pivot(lv_obj_t * img, lv_coord_t pivot_x, lv_coord_t pivot_y)
lv_style_int_t transf_angle = lv_obj_get_style_transform_angle(img, LV_IMG_PART_MAIN); lv_style_int_t transf_angle = lv_obj_get_style_transform_angle(img, LV_IMG_PART_MAIN);
transf_angle += ext->angle; transf_angle += ext->angle;
lv_coord_t w = lv_obj_get_width(img);
lv_coord_t h = lv_obj_get_height(img);
lv_area_t a; lv_area_t a;
_lv_img_buf_get_transformed_area(&a, ext->w, ext->h, transf_angle, transf_zoom, &ext->pivot); _lv_img_buf_get_transformed_area(&a, w, h, transf_angle, transf_zoom, &ext->pivot);
a.x1 += img->coords.x1; a.x1 += img->coords.x1;
a.y1 += img->coords.y1; a.y1 += img->coords.y1;
a.x2 += img->coords.x1; a.x2 += img->coords.x1;
@ -315,7 +317,7 @@ void lv_img_set_pivot(lv_obj_t * img, lv_coord_t pivot_x, lv_coord_t pivot_y)
ext->pivot.y = pivot_y; ext->pivot.y = pivot_y;
lv_obj_refresh_ext_draw_pad(img); lv_obj_refresh_ext_draw_pad(img);
_lv_img_buf_get_transformed_area(&a, ext->w, ext->h, transf_angle, transf_zoom, &ext->pivot); _lv_img_buf_get_transformed_area(&a, w, h, transf_angle, transf_zoom, &ext->pivot);
a.x1 += img->coords.x1; a.x1 += img->coords.x1;
a.y1 += img->coords.y1; a.y1 += img->coords.y1;
a.x2 += img->coords.x1; a.x2 += img->coords.x1;
@ -341,8 +343,10 @@ void lv_img_set_angle(lv_obj_t * img, int16_t angle)
lv_style_int_t transf_angle = lv_obj_get_style_transform_angle(img, LV_IMG_PART_MAIN); lv_style_int_t transf_angle = lv_obj_get_style_transform_angle(img, LV_IMG_PART_MAIN);
lv_coord_t w = lv_obj_get_width(img);
lv_coord_t h = lv_obj_get_height(img);
lv_area_t a; lv_area_t a;
_lv_img_buf_get_transformed_area(&a, ext->w, ext->h, transf_angle + ext->angle, transf_zoom, &ext->pivot); _lv_img_buf_get_transformed_area(&a, w, h, transf_angle + ext->angle, transf_zoom, &ext->pivot);
a.x1 += img->coords.x1; a.x1 += img->coords.x1;
a.y1 += img->coords.y1; a.y1 += img->coords.y1;
a.x2 += img->coords.x1; a.x2 += img->coords.x1;
@ -352,7 +356,7 @@ void lv_img_set_angle(lv_obj_t * img, int16_t angle)
ext->angle = angle; ext->angle = angle;
lv_obj_refresh_ext_draw_pad(img); lv_obj_refresh_ext_draw_pad(img);
_lv_img_buf_get_transformed_area(&a, ext->w, ext->h, transf_angle + ext->angle, transf_zoom, &ext->pivot); _lv_img_buf_get_transformed_area(&a, w, h, transf_angle + ext->angle, transf_zoom, &ext->pivot);
a.x1 += img->coords.x1; a.x1 += img->coords.x1;
a.y1 += img->coords.y1; a.y1 += img->coords.y1;
a.x2 += img->coords.x1; a.x2 += img->coords.x1;
@ -382,8 +386,10 @@ void lv_img_set_zoom(lv_obj_t * img, uint16_t zoom)
lv_style_int_t transf_angle = lv_obj_get_style_transform_angle(img, LV_IMG_PART_MAIN); lv_style_int_t transf_angle = lv_obj_get_style_transform_angle(img, LV_IMG_PART_MAIN);
transf_angle += ext->angle; transf_angle += ext->angle;
lv_coord_t w = lv_obj_get_width(img);
lv_coord_t h = lv_obj_get_height(img);
lv_area_t a; lv_area_t a;
_lv_img_buf_get_transformed_area(&a, ext->w, ext->h, transf_angle, (transf_zoom * ext->zoom) >> 8, &ext->pivot); _lv_img_buf_get_transformed_area(&a, w, h, transf_angle, (transf_zoom * ext->zoom) >> 8, &ext->pivot);
a.x1 += img->coords.x1; a.x1 += img->coords.x1;
a.y1 += img->coords.y1; a.y1 += img->coords.y1;
a.x2 += img->coords.x1; a.x2 += img->coords.x1;
@ -393,7 +399,7 @@ void lv_img_set_zoom(lv_obj_t * img, uint16_t zoom)
ext->zoom = zoom; ext->zoom = zoom;
lv_obj_refresh_ext_draw_pad(img); lv_obj_refresh_ext_draw_pad(img);
_lv_img_buf_get_transformed_area(&a, ext->w, ext->h, transf_angle, (transf_zoom * ext->zoom) >> 8, &ext->pivot); _lv_img_buf_get_transformed_area(&a, w, h, transf_angle, (transf_zoom * ext->zoom) >> 8, &ext->pivot);
a.x1 += img->coords.x1; a.x1 += img->coords.x1;
a.y1 += img->coords.y1; a.y1 += img->coords.y1;
a.x2 += img->coords.x1; a.x2 += img->coords.x1;
@ -602,9 +608,6 @@ static lv_design_res_t lv_img_design(lv_obj_t * img, const lv_area_t * clip_area
} }
else if(mode == LV_DESIGN_DRAW_MAIN) { else if(mode == LV_DESIGN_DRAW_MAIN) {
if(ext->h == 0 || ext->w == 0) return true; if(ext->h == 0 || ext->w == 0) return true;
lv_area_t img_coords;
lv_obj_get_coords(img, &img_coords);
lv_draw_rect_dsc_t bg_dsc; lv_draw_rect_dsc_t bg_dsc;
lv_draw_rect_dsc_init(&bg_dsc); lv_draw_rect_dsc_init(&bg_dsc);
@ -622,13 +625,16 @@ static lv_design_res_t lv_img_design(lv_obj_t * img, const lv_area_t * clip_area
int32_t angle_final = lv_obj_get_style_transform_angle(img, LV_IMG_PART_MAIN); int32_t angle_final = lv_obj_get_style_transform_angle(img, LV_IMG_PART_MAIN);
angle_final += ext->angle; angle_final += ext->angle;
lv_coord_t obj_w = lv_obj_get_width(img);
lv_coord_t obj_h = lv_obj_get_height(img);
lv_area_t bg_coords; lv_area_t bg_coords;
_lv_img_buf_get_transformed_area(&bg_coords, lv_area_get_width(&img_coords), lv_area_get_height(&img_coords), _lv_img_buf_get_transformed_area(&bg_coords, obj_w, obj_h,
angle_final, zoom_final, &ext->pivot); angle_final, zoom_final, &ext->pivot);
bg_coords.x1 += img_coords.x1; bg_coords.x1 += img->coords.x1;
bg_coords.y1 += img_coords.y1; bg_coords.y1 += img->coords.y1;
bg_coords.x2 += img_coords.x1; bg_coords.x2 += img->coords.x1;
bg_coords.y2 += img_coords.y1; bg_coords.y2 += img->coords.y1;
bg_coords.x1 -= lv_obj_get_style_pad_left(img, LV_IMG_PART_MAIN); bg_coords.x1 -= lv_obj_get_style_pad_left(img, LV_IMG_PART_MAIN);
bg_coords.x2 += lv_obj_get_style_pad_right(img, LV_IMG_PART_MAIN); bg_coords.x2 += lv_obj_get_style_pad_right(img, LV_IMG_PART_MAIN);
bg_coords.y1 -= lv_obj_get_style_pad_top(img, LV_IMG_PART_MAIN); bg_coords.y1 -= lv_obj_get_style_pad_top(img, LV_IMG_PART_MAIN);
@ -649,12 +655,6 @@ static lv_design_res_t lv_img_design(lv_obj_t * img, const lv_area_t * clip_area
} }
if(ext->src_type == LV_IMG_SRC_FILE || ext->src_type == LV_IMG_SRC_VARIABLE) { if(ext->src_type == LV_IMG_SRC_FILE || ext->src_type == LV_IMG_SRC_VARIABLE) {
img_coords.x1 += ext->offset.x;
img_coords.y1 += ext->offset.y;
if(img_coords.x1 > img->coords.x1) img_coords.x1 -= ext->w;
if(img_coords.y1 > img->coords.y1) img_coords.y1 -= ext->h;
LV_LOG_TRACE("lv_img_design: start to draw image"); LV_LOG_TRACE("lv_img_design: start to draw image");
lv_draw_img_dsc_t img_dsc; lv_draw_img_dsc_t img_dsc;
@ -671,15 +671,37 @@ static lv_design_res_t lv_img_design(lv_obj_t * img, const lv_area_t * clip_area
img_dsc.pivot.y = ext->pivot.y; img_dsc.pivot.y = ext->pivot.y;
img_dsc.antialias = ext->antialias; img_dsc.antialias = ext->antialias;
lv_area_t cords_tmp; lv_coord_t zoomed_src_w = (int32_t)((int32_t)ext->w * zoom_final) >> 8;
cords_tmp.y1 = img_coords.y1; lv_coord_t zoomed_src_h = (int32_t)((int32_t)ext->h * zoom_final) >> 8;
cords_tmp.y2 = img_coords.y1 + ext->h - 1; lv_area_t zommed_coords;
lv_obj_get_coords(img, &zommed_coords);
for(; cords_tmp.y1 <= img_coords.y2; cords_tmp.y1 += ext->h, cords_tmp.y2 += ext->h) { zommed_coords.x1 += (int32_t)((int32_t)ext->offset.x * zoom_final) >> 8;
cords_tmp.x1 = img_coords.x1; zommed_coords.y1 += (int32_t)((int32_t)ext->offset.y * zoom_final) >> 8;
cords_tmp.x2 = img_coords.x1 + ext->w - 1; zommed_coords.x2 = zommed_coords.x1 + ((int32_t)((int32_t)(obj_w - 1) * zoom_final) >> 8);
for(; cords_tmp.x1 <= img_coords.x2; cords_tmp.x1 += ext->w, cords_tmp.x2 += ext->w) { zommed_coords.y2 = zommed_coords.y1 + ((int32_t)((int32_t)(obj_h - 1) * zoom_final) >> 8);
lv_draw_img(&cords_tmp, clip_area, ext->src, &img_dsc);
if(zommed_coords.x1 > img->coords.x1) zommed_coords.x1 -= ext->w;
if(zommed_coords.y1 > img->coords.y1) zommed_coords.y1 -= ext->h;
lv_area_t clip_real;
_lv_img_buf_get_transformed_area(&clip_real, lv_obj_get_width(img), lv_obj_get_height(img), angle_final, zoom_final, &ext->pivot);
clip_real.x1 += img->coords.x1;
clip_real.x2 += img->coords.x1;
clip_real.y1 += img->coords.y1;
clip_real.y2 += img->coords.y1;
if(_lv_area_intersect(&clip_real, &clip_real, clip_area) == false) return LV_DESIGN_RES_OK;
lv_area_t coords_tmp;
coords_tmp.y1 = zommed_coords.y1;
coords_tmp.y2 = zommed_coords.y1 + ext->h - 1;
for(; coords_tmp.y1 <= zommed_coords.y2; coords_tmp.y1 += zoomed_src_h, coords_tmp.y2 += zoomed_src_h) {
coords_tmp.x1 = zommed_coords.x1;
coords_tmp.x2 = zommed_coords.x1 + ext->w - 1;
for(; coords_tmp.x1 <= zommed_coords.x2; coords_tmp.x1 += zoomed_src_w, coords_tmp.x2 += zoomed_src_w) {
lv_draw_img(&coords_tmp, &clip_real, ext->src, &img_dsc);
} }
} }
} }
@ -690,7 +712,7 @@ static lv_design_res_t lv_img_design(lv_obj_t * img, const lv_area_t * clip_area
lv_obj_init_draw_label_dsc(img, LV_IMG_PART_MAIN, &label_dsc); lv_obj_init_draw_label_dsc(img, LV_IMG_PART_MAIN, &label_dsc);
label_dsc.color = lv_obj_get_style_image_recolor(img, LV_IMG_PART_MAIN); label_dsc.color = lv_obj_get_style_image_recolor(img, LV_IMG_PART_MAIN);
lv_draw_label(&img_coords, clip_area, &label_dsc, ext->src, NULL); lv_draw_label(&img->coords, clip_area, &label_dsc, ext->src, NULL);
} }
else { else {
/*Trigger the error handler of image drawer*/ /*Trigger the error handler of image drawer*/
@ -787,12 +809,14 @@ static lv_res_t lv_img_signal(lv_obj_t * img, lv_signal_t sign, void * param)
/*If the image has angle provide enough room for the rotated corners */ /*If the image has angle provide enough room for the rotated corners */
if(transf_angle || transf_zoom != LV_IMG_ZOOM_NONE) { if(transf_angle || transf_zoom != LV_IMG_ZOOM_NONE) {
lv_area_t a; lv_area_t a;
_lv_img_buf_get_transformed_area(&a, ext->w, ext->h, transf_angle, transf_zoom, &ext->pivot); lv_coord_t w = lv_obj_get_width(img);
lv_coord_t h = lv_obj_get_height(img);
_lv_img_buf_get_transformed_area(&a, w, h, transf_angle, transf_zoom, &ext->pivot);
lv_coord_t pad_ori = img->ext_draw_pad; lv_coord_t pad_ori = img->ext_draw_pad;
img->ext_draw_pad = LV_MATH_MAX(img->ext_draw_pad, pad_ori - a.x1); img->ext_draw_pad = LV_MATH_MAX(img->ext_draw_pad, pad_ori - a.x1);
img->ext_draw_pad = LV_MATH_MAX(img->ext_draw_pad, pad_ori - a.y1); img->ext_draw_pad = LV_MATH_MAX(img->ext_draw_pad, pad_ori - a.y1);
img->ext_draw_pad = LV_MATH_MAX(img->ext_draw_pad, pad_ori + a.x2 - ext->w); img->ext_draw_pad = LV_MATH_MAX(img->ext_draw_pad, pad_ori + a.x2 - w);
img->ext_draw_pad = LV_MATH_MAX(img->ext_draw_pad, pad_ori + a.y2 - ext->h); img->ext_draw_pad = LV_MATH_MAX(img->ext_draw_pad, pad_ori + a.y2 - h);
} }
/*Handle the padding of the background*/ /*Handle the padding of the background*/
@ -821,8 +845,10 @@ static lv_res_t lv_img_signal(lv_obj_t * img, lv_signal_t sign, void * param)
if(ext->w == lv_obj_get_width(img) && ext->h == lv_obj_get_height(img) && if(ext->w == lv_obj_get_width(img) && ext->h == lv_obj_get_height(img) &&
(zoom != LV_IMG_ZOOM_NONE || angle != 0 || ext->pivot.x != ext->w / 2 || ext->pivot.y != ext->h / 2)) { (zoom != LV_IMG_ZOOM_NONE || angle != 0 || ext->pivot.x != ext->w / 2 || ext->pivot.y != ext->h / 2)) {
lv_coord_t w = lv_obj_get_width(img);
lv_coord_t h = lv_obj_get_height(img);
lv_area_t coords; lv_area_t coords;
_lv_img_buf_get_transformed_area(&coords, ext->w, ext->h, angle, zoom, &ext->pivot); _lv_img_buf_get_transformed_area(&coords, w, h, angle, zoom, &ext->pivot);
coords.x1 += img->coords.x1; coords.x1 += img->coords.x1;
coords.y1 += img->coords.y1; coords.y1 += img->coords.y1;
coords.x2 += img->coords.x1; coords.x2 += img->coords.x1;