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lv_roller: add text recolor in selected area

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This commit is contained in:
Gabor Kiss-Vamosi 2017-11-15 22:23:17 +01:00
parent 350ceddf3f
commit 38c799e27e
1 changed files with 20 additions and 2 deletions
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22
lv_objx/lv_roller.c
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@ -192,7 +192,6 @@ static bool lv_roller_design(lv_obj_t * roller, const area_t * mask, lv_design_m
}
/*Draw the object*/
else if(mode == LV_DESIGN_DRAW_MAIN) {
draw_bg(roller, mask);
lv_style_t *style = lv_roller_get_style(roller, LV_ROLLER_STYLE_BG);
@ -209,7 +208,26 @@ static bool lv_roller_design(lv_obj_t * roller, const area_t * mask, lv_design_m
}
/*Post draw when the children are drawn*/
else if(mode == LV_DESIGN_DRAW_POST) {
lv_style_t *style = lv_roller_get_style(roller, LV_ROLLER_STYLE_BG);
lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller);
const font_t * font = style->text.font;
cord_t font_h = font_get_height_scale(font);
/*Redraw the text on the selected area with a different color*/
area_t rect_area;
rect_area.y1 = roller->coords.y1 + lv_obj_get_height(roller) / 2 - font_h / 2 - style->text.line_space / 2;
rect_area.y2 = rect_area.y1 + font_h + style->text.line_space;
rect_area.x1 = roller->coords.x1;
rect_area.x2 = roller->coords.x2;
area_t mask_sel;
bool area_ok;
area_ok = area_union(&mask_sel, mask, &rect_area);
if(area_ok) {
lv_style_t *sel_style = lv_roller_get_style(roller, LV_ROLLER_STYLE_SELECTED);
lv_style_t new_style;
lv_style_copy(&new_style, style);
new_style.text.color = sel_style->text.color;
lv_draw_label(&ext->ddlist.options_label->coords, &mask_sel, &new_style, lv_label_get_text(ext->ddlist.options_label), TXT_FLAG_CENTER, NULL);
}
}
return true;