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lv_img_set_offset_x/y: draw the partial image at the beginning with offset > 0

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This commit is contained in:
Gabor Kiss-Vamosi 2019-11-21 05:44:43 +01:00
parent b7d856515b
commit 06f553b3aa
1 changed files with 13 additions and 10 deletions
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23
src/lv_objx/lv_img.c
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@ -236,10 +236,10 @@ void lv_img_set_offset_x(lv_obj_t * img, lv_coord_t x)
lv_img_ext_t * ext = lv_obj_get_ext_attr(img);
if(x < ext->w - 1) {
ext->offset.x = x;
lv_obj_invalidate(img);
}
x = x % ext->w;
ext->offset.x = x;
lv_obj_invalidate(img);
}
/**
@ -254,10 +254,10 @@ void lv_img_set_offset_y(lv_obj_t * img, lv_coord_t y)
lv_img_ext_t * ext = lv_obj_get_ext_attr(img);
if(y < ext->h - 1) {
ext->offset.y = y;
lv_obj_invalidate(img);
}
y = y % ext->h;
ext->offset.y = y;
lv_obj_invalidate(img);
}
/**
@ -471,8 +471,11 @@ static lv_design_res_t lv_img_design(lv_obj_t * img, const lv_area_t * clip_area
lv_obj_get_coords(img, &coords);
if(ext->src_type == LV_IMG_SRC_FILE || ext->src_type == LV_IMG_SRC_VARIABLE) {
coords.x1 -= ext->offset.x;
coords.y1 -= ext->offset.y;
coords.x1 += ext->offset.x;
coords.y1 += ext->offset.y;
if(coords.x1 > img->coords.x1) coords.x1 -= ext->w;
if(coords.y1 > img->coords.y1) coords.y1 -= ext->h;
LV_LOG_TRACE("lv_img_design: start to draw image");
lv_area_t cords_tmp;