add some code

managed_components/lvgl__lvgl/examples/others/font_manager/index.rst

@@ -0,0 +1,18 @@
+
+Create FreeType Font
+--------------------
+
+.. lv_example:: others/font_manager/lv_example_font_manager_1
+  :language: c
+
+Create Font Family
+------------------
+
+.. lv_example:: others/font_manager/lv_example_font_manager_2
+  :language: c
+
+Create Custom Image Font
+------------------------
+
+.. lv_example:: others/font_manager/lv_example_font_manager_3
+  :language: c

managed_components/lvgl__lvgl/examples/others/font_manager/lv_example_font_manager.h

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+/**
+ * @file lv_example_font_manager.h
+ *
+ */
+
+#ifndef LV_EXAMPLE_FONT_MANAGER_H
+#define LV_EXAMPLE_FONT_MANAGER_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************
+ *      INCLUDES
+ *********************/
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+void lv_example_font_manager_1(void);
+void lv_example_font_manager_2(void);
+void lv_example_font_manager_3(void);
+
+/**********************
+ *      MACROS
+ **********************/
+
+#ifdef __cplusplus
+} /*extern "C"*/
+#endif
+
+#endif /*LV_EXAMPLE_MONKEY_H*/

managed_components/lvgl__lvgl/examples/others/font_manager/lv_example_font_manager_1.c

@@ -0,0 +1,52 @@
+#include "../../lv_examples.h"
+#if LV_USE_FONT_MANAGER && LV_USE_FREETYPE && LV_BUILD_EXAMPLES
+
+#if LV_FREETYPE_USE_LVGL_PORT
+    #define PATH_PREFIX "A:"
+#else
+    #define PATH_PREFIX "./"
+#endif
+
+static lv_font_manager_t * g_font_manager = NULL;
+
+void lv_example_font_manager_1(void)
+{
+    /* Create font manager, with 8 fonts recycling buffers */
+    g_font_manager = lv_font_manager_create(8);
+
+    /* Add font path mapping to font manager */
+    lv_font_manager_add_src_static(g_font_manager,
+                                   "Lato-Regular",
+                                   PATH_PREFIX "lvgl/examples/libs/freetype/Lato-Regular.ttf",
+                                   &lv_freetype_font_class);
+
+    /* Create font from font manager */
+    lv_font_t * font = lv_font_manager_create_font(g_font_manager,
+                                                   "Lato-Regular",
+                                                   LV_FREETYPE_FONT_RENDER_MODE_BITMAP,
+                                                   24,
+                                                   LV_FREETYPE_FONT_STYLE_NORMAL,
+                                                   LV_FONT_KERNING_NONE);
+
+    if(!font) {
+        LV_LOG_ERROR("Could not create font");
+        return;
+    }
+
+    /* Create label with the font */
+    lv_obj_t * label = lv_label_create(lv_screen_active());
+    lv_obj_set_style_text_font(label, font, 0);
+    lv_label_set_text(label, "Hello Font Manager!");
+    lv_obj_center(label);
+}
+
+#else
+
+void lv_example_font_manager_1(void)
+{
+    lv_obj_t * label = lv_label_create(lv_screen_active());
+    lv_label_set_text(label, "Font Manager or FreeType is not enabled");
+    lv_obj_center(label);
+}
+
+#endif

managed_components/lvgl__lvgl/examples/others/font_manager/lv_example_font_manager_2.c

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+#include "../../lv_examples.h"
+#if LV_USE_FONT_MANAGER && LV_BUILD_EXAMPLES
+
+#if defined(LV_FREETYPE_USE_LVGL_PORT) && LV_FREETYPE_USE_LVGL_PORT
+    #define PATH_PREFIX "A:"
+#else
+    #define PATH_PREFIX "./"
+#endif
+
+static lv_font_manager_t * g_font_manager = NULL;
+
+void lv_example_font_manager_2(void)
+{
+    /* Create font manager, with 8 fonts recycling buffers */
+    g_font_manager = lv_font_manager_create(8);
+
+#if LV_FONT_MONTSERRAT_14 && LV_FONT_MONTSERRAT_32
+
+    /* Register built-in font sources */
+    static lv_builtin_font_src_t builtin_font_src[3] = { 0 };
+    builtin_font_src[0].font_p = &lv_font_montserrat_14;
+    builtin_font_src[0].size = 14;
+    builtin_font_src[1].font_p = &lv_font_montserrat_32;
+    builtin_font_src[1].size = 32;
+
+    /* IMPORTANT! Marking the end of the array */
+    builtin_font_src[2].font_p = NULL;
+    builtin_font_src[2].size = 0;
+
+    lv_font_manager_add_src_static(g_font_manager,
+                                   "Montserrat",
+                                   builtin_font_src,
+                                   &lv_builtin_font_class);
+#endif
+
+#if LV_USE_FREETYPE
+    /* Register FreeType font source */
+    lv_font_manager_add_src_static(g_font_manager,
+                                   "NotoColorEmoji",
+                                   PATH_PREFIX "lvgl/examples/libs/freetype/NotoColorEmoji-32.subset.ttf",
+                                   &lv_freetype_font_class);
+#endif
+
+#if LV_USE_TINY_TTF && LV_TINY_TTF_FILE_SUPPORT
+    /* Register TinyTTF font source */
+    static const lv_tiny_ttf_font_src_t tiny_ttf_font_src = {
+        .path = "A:lvgl/examples/libs/tiny_ttf/Ubuntu-Medium.ttf",
+        .data = NULL,
+        .data_size = 0,
+        .cache_size = 0,
+    };
+
+    lv_font_manager_add_src_static(g_font_manager,
+                                   "Ubuntu-Medium",
+                                   &tiny_ttf_font_src,
+                                   &lv_tiny_ttf_font_class);
+#endif
+
+    /* Create font from font manager */
+    lv_font_t * font = lv_font_manager_create_font(g_font_manager,
+                                                   "Ubuntu-Medium,NotoColorEmoji,Montserrat",
+                                                   LV_FREETYPE_FONT_RENDER_MODE_BITMAP,
+                                                   32,
+                                                   LV_FREETYPE_FONT_STYLE_NORMAL,
+                                                   LV_FONT_KERNING_NONE);
+
+    if(!font) {
+        LV_LOG_ERROR("Could not create font");
+        return;
+    }
+
+    /* Create label with the font */
+    lv_obj_t * label = lv_label_create(lv_screen_active());
+    lv_obj_set_style_text_font(label, font, 0);
+    lv_label_set_text(label, "Hello Font Manager! 😀 " LV_SYMBOL_OK);
+    lv_obj_center(label);
+}
+
+#else
+
+void lv_example_font_manager_2(void)
+{
+    lv_obj_t * label = lv_label_create(lv_screen_active());
+    lv_label_set_text(label, "Font Manager is not enabled");
+    lv_obj_center(label);
+}
+
+#endif

managed_components/lvgl__lvgl/examples/others/font_manager/lv_example_font_manager_3.c

@@ -0,0 +1,123 @@
+#include "../../lv_examples.h"
+#if LV_USE_FONT_MANAGER && LV_USE_FREETYPE && LV_USE_IMGFONT && LV_BUILD_EXAMPLES
+
+#if LV_FREETYPE_USE_LVGL_PORT
+    #define PATH_PREFIX "A:"
+#else
+    #define PATH_PREFIX "./"
+#endif
+
+typedef struct {
+    uint16_t match_size_min;
+    uint16_t match_size_max;
+    lv_imgfont_get_path_cb_t get_path_cb;
+} imgfont_src_t;
+
+static lv_font_manager_t * g_font_manager = NULL;
+
+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 == 0xF617) {
+        return &emoji_F617;
+    }
+
+    return NULL;
+}
+
+static lv_font_t * imgfont_create_cb(const lv_font_info_t * info, const void * src)
+{
+    const imgfont_src_t * imgfont_src = (imgfont_src_t *) src;
+
+    if(info->size < imgfont_src->match_size_min
+       || info->size > imgfont_src->match_size_max) {
+        return NULL;
+    }
+
+    return lv_imgfont_create(info->size, imgfont_src->get_path_cb, NULL);
+}
+
+static void imgfont_delete_cb(lv_font_t * font)
+{
+    lv_imgfont_destroy(font);
+}
+
+static void * imgfont_dup_src_cb(const void * src)
+{
+    imgfont_src_t * imgfont_src = (imgfont_src_t *) lv_malloc(sizeof(imgfont_src_t));
+    LV_ASSERT_MALLOC(imgfont_src);
+    lv_memcpy(imgfont_src, src, sizeof(imgfont_src_t));
+    return imgfont_src;
+}
+
+static void imgfont_free_src_cb(void * src)
+{
+    lv_free(src);
+}
+
+static const lv_font_class_t imgfont_class = {
+    .create_cb = imgfont_create_cb,
+    .delete_cb = imgfont_delete_cb,
+    .dup_src_cb = imgfont_dup_src_cb,
+    .free_src_cb = imgfont_free_src_cb,
+};
+
+void lv_example_font_manager_3(void)
+{
+    /* Create font manager, with 8 fonts recycling buffers */
+    g_font_manager = lv_font_manager_create(8);
+
+    /* Add font path mapping to font manager */
+    lv_font_manager_add_src_static(g_font_manager,
+                                   "Lato-Regular",
+                                   PATH_PREFIX "lvgl/examples/libs/freetype/Lato-Regular.ttf",
+                                   &lv_freetype_font_class);
+
+    /* Add custom imgfont source to font manager */
+    static const imgfont_src_t imgfont_src = {
+        .match_size_min = 70,
+        .match_size_max = 80,
+        .get_path_cb = get_imgfont_path,
+    };
+    lv_font_manager_add_src_static(g_font_manager,
+                                   "Emoji",
+                                   &imgfont_src,
+                                   &imgfont_class);
+
+    /* Create font from font manager */
+    lv_font_t * font = lv_font_manager_create_font(g_font_manager,
+                                                   "Lato-Regular,Emoji",
+                                                   LV_FREETYPE_FONT_RENDER_MODE_BITMAP,
+                                                   75,
+                                                   LV_FREETYPE_FONT_STYLE_NORMAL,
+                                                   LV_FONT_KERNING_NONE);
+
+    if(!font) {
+        LV_LOG_ERROR("Could not create font");
+        return;
+    }
+
+    /* Create label with the font */
+    lv_obj_t * label = lv_label_create(lv_screen_active());
+    lv_obj_set_style_text_font(label, font, 0);
+    lv_label_set_text(label, "Quiet\uF617~");
+    lv_obj_center(label);
+}
+
+#else
+
+void lv_example_font_manager_3(void)
+{
+    lv_obj_t * label = lv_label_create(lv_screen_active());
+    lv_label_set_text(label, "Font Manager or Freetype or Imgfont is not enabled");
+    lv_obj_center(label);
+}
+
+#endif