Initial commit: TXW82x FPV v2.7.0.7-42229 SDK + project sources

sdk/lib/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
+

sdk/lib/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*/

sdk/lib/lvgl/examples/others/imgfont/lv_example_imgfont_1.c

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+#include "../../lv_examples.h"
+#include <stdio.h>
+
+#if LV_BUILD_EXAMPLES
+#if LV_USE_IMGFONT
+
+LV_IMG_DECLARE(emoji_F617)
+static bool get_imgfont_path(const lv_font_t * font, void * img_src,
+                             uint16_t len, uint32_t unicode, uint32_t unicode_next,
+                             lv_coord_t * offset_y, void * user_data)
+{
+    LV_UNUSED(font);
+    LV_UNUSED(unicode_next);
+    LV_UNUSED(offset_y);
+    LV_UNUSED(user_data);
+    LV_ASSERT_NULL(img_src);
+
+    if(unicode < 0xF000) return false;
+
+    if(unicode == 0xF617) {
+        memcpy(img_src, &emoji_F617, sizeof(lv_img_dsc_t));
+    }
+    else {
+        char * path = (char *)img_src;
+#if LV_USE_FFMPEG
+        lv_snprintf(path, len, "%s/%04X.png", "lvgl/examples/assets/emoji", unicode);
+#elif LV_USE_PNG
+        lv_snprintf(path, len, "%s/%04X.png", "A:lvgl/examples/assets/emoji", unicode);
+#endif
+    }
+
+    return true;
+}
+
+/**
+ * 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_scr_act());
+    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_scr_act());
+    lv_label_set_text(label, "imgfont is not installed");
+    lv_obj_center(label);
+}
+
+#endif
+#endif

sdk/lib/lvgl/examples/others/imgfont/lv_example_imgfont_1.py

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+import fs_driver
+import sys
+
+# set LV_USE_FFMPEG to True if it is enabled in lv_conf.h
+LV_USE_FFMPEG = True
+LV_FONT_DEFAULT = lv.font_montserrat_14
+
+fs_drv = lv.fs_drv_t()
+fs_driver.fs_register(fs_drv, 'A')
+
+# get the directory in which the script is running
+try:
+    script_path = __file__[:__file__.rfind('/')] if __file__.find('/') >= 0 else '.'
+except NameError: 
+    script_path = ''
+    
+def get_imgfont_path(font, img_src, length, unicode, unicode_next, offset_y, user_data) :
+    if unicode < 0xf600:
+        return
+    if LV_USE_FFMPEG:
+        path = bytes(script_path + "/../../assets/emoji/{:04X}.png".format(unicode) + "\0","ascii")
+    else:
+        path = bytes("A:"+ script_path + "/../../assets/emoji/{:04X}.png".format(unicode) + "\0","ascii")
+    # print("image path: ",path)
+    img_src.__dereference__(length)[0:len(path)] = path
+    return True
+
+#
+# draw img in label or span obj
+#
+imgfont = lv.imgfont_create(80, get_imgfont_path, None)
+if imgfont == None:
+    print("imgfont init error")
+    sys.exit(1)
+
+imgfont.fallback = LV_FONT_DEFAULT
+
+label1 = lv.label(lv.scr_act())
+label1.set_text("12\uF600\uF617AB")
+label1.set_style_text_font(imgfont, lv.PART.MAIN)
+label1.center()