/**
* Get a style of a switch
* @param sw pointer to a switch object
* @param type which style should be get
* @return style pointer to a style
*/
lv_style_t * lv_sw_get_style(const lv_obj_t * sw, lv_sw_style_t type)
{
lv_style_t * style = NULL;
lv_sw_ext_t * ext = lv_obj_get_ext_attr(sw);
switch(type) {
case LV_SW_STYLE_BG:
style = lv_slider_get_style(sw, LV_SLIDER_STYLE_BG);
break;
case LV_SW_STYLE_INDIC:
style = lv_slider_get_style(sw, LV_SLIDER_STYLE_INDIC);
break;
case LV_SW_STYLE_KNOB_OFF:
style = ext->style_knob_off;
break;
case LV_SW_STYLE_KNOB_ON:
style = ext->style_knob_on;
break;
default:
style = NULL;
break;
}
return style;
}
/**
* Handle the drawing related tasks of the sliders
* @param slider pointer to an object
* @param mask the object will be drawn only in this area
* @param mode LV_DESIGN_COVER_CHK: only check if the object fully covers the 'mask_p' area
* (return 'true' if yes)
* LV_DESIGN_DRAW: draw the object (always return 'true')
* LV_DESIGN_DRAW_POST: drawing after every children are drawn
* @param return true/false, depends on 'mode'
*/
static bool lv_slider_design(lv_obj_t * slider, const lv_area_t * mask, lv_design_mode_t mode)
{
/*Return false if the object is not covers the mask_p area*/
if(mode == LV_DESIGN_COVER_CHK) {
return false;
}
/*Draw the object*/
else if(mode == LV_DESIGN_DRAW_MAIN) {
lv_slider_ext_t * ext = lv_obj_get_ext_attr(slider);
lv_style_t * style_bg = lv_slider_get_style(slider, LV_SLIDER_STYLE_BG);
lv_style_t * style_knob = lv_slider_get_style(slider, LV_SLIDER_STYLE_KNOB);
lv_style_t * style_indic = lv_slider_get_style(slider, LV_SLIDER_STYLE_INDIC);
lv_coord_t slider_w = lv_area_get_width(&slider->coords);
lv_coord_t slider_h = lv_area_get_height(&slider->coords);
/*Draw the bar*/
lv_area_t area_bg;
lv_area_copy(&area_bg, &slider->coords);
/*Be sure at least LV_SLIDER_SIZE_MIN size will remain*/
lv_coord_t pad_ver_bg = style_bg->body.padding.ver;
lv_coord_t pad_hor_bg = style_bg->body.padding.hor;
if(pad_ver_bg * 2 + LV_SLIDER_SIZE_MIN > lv_area_get_height(&area_bg)) {
pad_ver_bg = (lv_area_get_height(&area_bg) - LV_SLIDER_SIZE_MIN) >> 1;
}
/**
* Get a style of a switch
* @param sw pointer to a switch object
* @param type which style should be get
* @return style pointer to a style
*/
lv_style_t * lv_sw_get_style(lv_obj_t *sw, lv_sw_style_t type)
{
lv_sw_ext_t *ext = lv_obj_get_ext_attr(sw);
switch (type) {
case LV_SW_STYLE_BG: return lv_slider_get_style(sw, LV_SLIDER_STYLE_BG);
case LV_SW_STYLE_INDIC: return lv_slider_get_style(sw, LV_SLIDER_STYLE_INDIC);
case LV_SW_STYLE_KNOB_OFF: return ext->style_knob_off;
case LV_SW_STYLE_KNOB_ON: return ext->style_knob_on;
default: return NULL;
}
/*To avoid warning*/
return NULL;
}
