成功移植lvgl

code/esp32c3_espidf/main/lv_apps/helloworld/lv_helloworld.c

@@ -0,0 +1,81 @@
+#include "lv_helloworld.h"
+
+
+static lv_style_t style_btn;
+static lv_style_t style_button_pressed;
+static lv_style_t style_button_red;
+
+static lv_color_t darken(const lv_color_filter_dsc_t * dsc, lv_color_t color, lv_opa_t opa)
+{
+    LV_UNUSED(dsc);
+    return lv_color_darken(color, opa);
+}
+
+static void style_init(void)
+{
+    /*Create a simple button style*/
+    lv_style_init(&style_btn);
+    lv_style_set_radius(&style_btn, 10);
+    lv_style_set_bg_opa(&style_btn, LV_OPA_COVER);
+    lv_style_set_bg_color(&style_btn, lv_palette_lighten(LV_PALETTE_GREY, 3));
+    lv_style_set_bg_grad_color(&style_btn, lv_palette_main(LV_PALETTE_GREY));
+    lv_style_set_bg_grad_dir(&style_btn, LV_GRAD_DIR_VER);
+
+    lv_style_set_border_color(&style_btn, lv_color_black());
+    lv_style_set_border_opa(&style_btn, LV_OPA_20);
+    lv_style_set_border_width(&style_btn, 2);
+
+    lv_style_set_text_color(&style_btn, lv_color_black());
+
+    /*Create a style for the pressed state.
+     *Use a color filter to simply modify all colors in this state*/
+    static lv_color_filter_dsc_t color_filter;
+    lv_color_filter_dsc_init(&color_filter, darken);
+    lv_style_init(&style_button_pressed);
+    lv_style_set_color_filter_dsc(&style_button_pressed, &color_filter);
+    lv_style_set_color_filter_opa(&style_button_pressed, LV_OPA_20);
+
+    /*Create a red style. Change only some colors.*/
+    lv_style_init(&style_button_red);
+    lv_style_set_bg_color(&style_button_red, lv_palette_main(LV_PALETTE_RED));
+    lv_style_set_bg_grad_color(&style_button_red, lv_palette_lighten(LV_PALETTE_RED, 3));
+}
+
+/**
+ * Create styles from scratch for buttons.
+ */
+void lv_example_get_started_1(void)
+{
+    /*Initialize the style*/
+    style_init();
+
+    /*Create a button and use the new styles*/
+    lv_obj_t * btn = lv_button_create(lv_screen_active());
+    /* Remove the styles coming from the theme
+     * Note that size and position are also stored as style properties
+     * so lv_obj_remove_style_all will remove the set size and position too */
+    lv_obj_remove_style_all(btn);
+    lv_obj_set_pos(btn, 10, 10);
+    lv_obj_set_size(btn, 120, 50);
+    lv_obj_add_style(btn, &style_btn, 0);
+    lv_obj_add_style(btn, &style_button_pressed, LV_STATE_PRESSED);
+
+    /*Add a label to the button*/
+    lv_obj_t * label = lv_label_create(btn);
+    lv_label_set_text(label, "Button");
+    lv_obj_center(label);
+
+    /*Create another button and use the red style too*/
+    lv_obj_t * btn2 = lv_button_create(lv_screen_active());
+    lv_obj_remove_style_all(btn2);                      /*Remove the styles coming from the theme*/
+    lv_obj_set_pos(btn2, 10, 80);
+    lv_obj_set_size(btn2, 120, 50);
+    lv_obj_add_style(btn2, &style_btn, 0);
+    lv_obj_add_style(btn2, &style_button_red, 0);
+    lv_obj_add_style(btn2, &style_button_pressed, LV_STATE_PRESSED);
+    lv_obj_set_style_radius(btn2, LV_RADIUS_CIRCLE, 0); /*Add a local style too*/
+
+    label = lv_label_create(btn2);
+    lv_label_set_text(label, "Button 2");
+    lv_obj_center(label);
+}

code/esp32c3_espidf/main/lv_apps/helloworld/lv_helloworld.h

@@ -0,0 +1,8 @@
+#ifndef LV_HELLOWORLD_H
+#define LV_HELLOWORLD_H
+
+#include "lvgl.h"
+
+void lv_example_get_started_1(void);
+
+#endif