init Files

libraries/lvgl/examples/widgets/slider/lv_example_slider_2.c

@@ -0,0 +1,55 @@
+#include "../../lv_examples.h"
+#if LV_USE_SLIDER && LV_BUILD_EXAMPLES
+
+/**
+ * Show how to style a slider.
+ */
+void lv_example_slider_2(void)
+{
+    /*Create a transition*/
+    static const lv_style_prop_t props[] = {LV_STYLE_BG_COLOR, 0};
+    static lv_style_transition_dsc_t transition_dsc;
+    lv_style_transition_dsc_init(&transition_dsc, props, lv_anim_path_linear, 300, 0, NULL);
+
+    static lv_style_t style_main;
+    static lv_style_t style_indicator;
+    static lv_style_t style_knob;
+    static lv_style_t style_pressed_color;
+    lv_style_init(&style_main);
+    lv_style_set_bg_opa(&style_main, LV_OPA_COVER);
+    lv_style_set_bg_color(&style_main, lv_color_hex3(0xbbb));
+    lv_style_set_radius(&style_main, LV_RADIUS_CIRCLE);
+    lv_style_set_pad_ver(&style_main, -2); /*Makes the indicator larger*/
+
+    lv_style_init(&style_indicator);
+    lv_style_set_bg_opa(&style_indicator, LV_OPA_COVER);
+    lv_style_set_bg_color(&style_indicator, lv_palette_main(LV_PALETTE_CYAN));
+    lv_style_set_radius(&style_indicator, LV_RADIUS_CIRCLE);
+    lv_style_set_transition(&style_indicator, &transition_dsc);
+
+    lv_style_init(&style_knob);
+    lv_style_set_bg_opa(&style_knob, LV_OPA_COVER);
+    lv_style_set_bg_color(&style_knob, lv_palette_main(LV_PALETTE_CYAN));
+    lv_style_set_border_color(&style_knob, lv_palette_darken(LV_PALETTE_CYAN, 3));
+    lv_style_set_border_width(&style_knob, 2);
+    lv_style_set_radius(&style_knob, LV_RADIUS_CIRCLE);
+    lv_style_set_pad_all(&style_knob, 6); /*Makes the knob larger*/
+    lv_style_set_transition(&style_knob, &transition_dsc);
+
+    lv_style_init(&style_pressed_color);
+    lv_style_set_bg_color(&style_pressed_color, lv_palette_darken(LV_PALETTE_CYAN, 2));
+
+    /*Create a slider and add the style*/
+    lv_obj_t * slider = lv_slider_create(lv_screen_active());
+    lv_obj_remove_style_all(slider);        /*Remove the styles coming from the theme*/
+
+    lv_obj_add_style(slider, &style_main, LV_PART_MAIN);
+    lv_obj_add_style(slider, &style_indicator, LV_PART_INDICATOR);
+    lv_obj_add_style(slider, &style_pressed_color, LV_PART_INDICATOR | LV_STATE_PRESSED);
+    lv_obj_add_style(slider, &style_knob, LV_PART_KNOB);
+    lv_obj_add_style(slider, &style_pressed_color, LV_PART_KNOB | LV_STATE_PRESSED);
+
+    lv_obj_center(slider);
+}
+
+#endif