init Files

libraries/lvgl/examples/others/imgfont/index.rst

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+Use emojis in a text.
+---------------------
+
+.. lv_example:: others/imgfont/lv_example_imgfont_1
+  :language: c
+

libraries/lvgl/examples/others/imgfont/lv_example_imgfont.h

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+/**
+ * @file lv_example_imgfont.h
+ *
+ */
+
+#ifndef LV_EXAMPLE_IMGFONT_H
+#define LV_EXAMPLE_IMGFONT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************
+ *      INCLUDES
+ *********************/
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+void lv_example_imgfont_1(void);
+
+/**********************
+ *      MACROS
+ **********************/
+
+#ifdef __cplusplus
+} /*extern "C"*/
+#endif
+
+#endif /*LV_EXAMPLE_IMGFONT_H*/

libraries/lvgl/examples/others/imgfont/lv_example_imgfont_1.c

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+#include "../../lv_examples.h"
+
+#if LV_BUILD_EXAMPLES
+#if LV_USE_IMGFONT
+
+static const void * get_imgfont_path(const lv_font_t * font, uint32_t unicode, uint32_t unicode_next,
+                                     int32_t * offset_y, void * user_data)
+{
+    LV_UNUSED(font);
+    LV_UNUSED(unicode_next);
+    LV_UNUSED(offset_y);
+    LV_UNUSED(user_data);
+
+    LV_IMAGE_DECLARE(emoji_F617);
+
+    if(unicode < 0xF000) return NULL;
+
+    if(unicode == 0xF617) {
+        return &emoji_F617;
+    }
+    else if(unicode == 0xF600) {
+#if LV_USE_FFMPEG
+        return "lvgl/examples/assets/emoji/F600.png";
+#else
+        return "A:lvgl/examples/assets/emoji/F600.png";
+#endif
+    }
+
+    return NULL;
+}
+
+/**
+ * draw img in label or span obj
+ */
+void lv_example_imgfont_1(void)
+{
+    lv_font_t * imgfont = lv_imgfont_create(80, get_imgfont_path, NULL);
+    if(imgfont == NULL) {
+        LV_LOG_ERROR("imgfont init error");
+        return;
+    }
+
+    imgfont->fallback = LV_FONT_DEFAULT;
+
+    lv_obj_t * label1 = lv_label_create(lv_screen_active());
+    lv_label_set_text(label1, "12\uF600\uF617AB");
+    lv_obj_set_style_text_font(label1, imgfont, LV_PART_MAIN);
+    lv_obj_center(label1);
+}
+#else
+
+void lv_example_imgfont_1(void)
+{
+    lv_obj_t * label = lv_label_create(lv_screen_active());
+    lv_label_set_text(label, "imgfont is not installed");
+    lv_obj_center(label);
+}
+
+#endif
+#endif