add radio station selection; remove list and filelist view implementation in STM32 radio; remove warning of RTGUI.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@419 bbd45198-f89e-11dd-88c7-29a3b14d5316

20 files changed, 71 insertions, 69 deletions

diff --git a/rtgui/common/dc.c b/rtgui/common/dc.c
index 68a02e863b..41967bb92e 100644
--- a/rtgui/common/dc.c
+++ b/rtgui/common/dc.c
@@ -167,7 +167,7 @@ void rtgui_dc_blit(struct rtgui_dc* dc, struct rtgui_point* dc_point, struct rtg
 	dc->blit(dc, dc_point, dest, rect);
 }
 
-void rtgui_dc_draw_text (struct rtgui_dc* dc, const rt_uint8_t* text, struct rtgui_rect* rect)
+void rtgui_dc_draw_text (struct rtgui_dc* dc, const char* text, struct rtgui_rect* rect)
 {
 	rt_uint32_t len;
 	struct rtgui_font *font;
diff --git a/rtgui/common/font.c b/rtgui/common/font.c
index 475effa726..9e9f63c7e4 100644
--- a/rtgui/common/font.c
+++ b/rtgui/common/font.c
@@ -120,7 +120,7 @@ void rtgui_font_derefer(struct rtgui_font* font)
 }
 
 /* draw a text */
-void rtgui_font_draw(struct rtgui_font* font, struct rtgui_dc* dc, const rt_uint8_t* text, rt_ubase_t len, struct rtgui_rect* rect)
+void rtgui_font_draw(struct rtgui_font* font, struct rtgui_dc* dc, const char* text, rt_ubase_t len, struct rtgui_rect* rect)
 {
 	RT_ASSERT(font != RT_NULL);
 
@@ -131,7 +131,7 @@ void rtgui_font_draw(struct rtgui_font* font, struct rtgui_dc* dc, const rt_uint
 	}
 }
 
-int rtgui_font_get_string_width(struct rtgui_font* font, const rt_uint8_t* text)
+int rtgui_font_get_string_width(struct rtgui_font* font, const char* text)
 {
 	rtgui_rect_t rect;
 
@@ -141,7 +141,7 @@ int rtgui_font_get_string_width(struct rtgui_font* font, const rt_uint8_t* text)
 	return rect.x2 - rect.x1;
 }
 
-void rtgui_font_get_metrics(struct rtgui_font* font, const rt_uint8_t* text, rtgui_rect_t* rect)
+void rtgui_font_get_metrics(struct rtgui_font* font, const char* text, rtgui_rect_t* rect)
 {
 	RT_ASSERT(font != RT_NULL);
 
@@ -157,8 +157,8 @@ void rtgui_font_get_metrics(struct rtgui_font* font, const rt_uint8_t* text, rtg
 	}
 }
 
-static void rtgui_bitmap_font_draw_text(struct rtgui_font* font, struct rtgui_dc* dc, const rt_uint8_t* text, rt_ubase_t len, struct rtgui_rect* rect);
-static void rtgui_bitmap_font_get_metrics(struct rtgui_font* font, const rt_uint8_t* text, rtgui_rect_t* rect);
+static void rtgui_bitmap_font_draw_text(struct rtgui_font* font, struct rtgui_dc* dc, const char* text, rt_ubase_t len, struct rtgui_rect* rect);
+static void rtgui_bitmap_font_get_metrics(struct rtgui_font* font, const char* text, rtgui_rect_t* rect);
 struct rtgui_font_engine bmp_font_engine =
 {
 	RT_NULL,
@@ -197,7 +197,7 @@ void rtgui_bitmap_font_draw_char(struct rtgui_font_bitmap* font, struct rtgui_dc
 	}
 }
 
-static void rtgui_bitmap_font_draw_text(struct rtgui_font* font, struct rtgui_dc* dc, const rt_uint8_t* text, rt_ubase_t len, struct rtgui_rect* rect)
+static void rtgui_bitmap_font_draw_text(struct rtgui_font* font, struct rtgui_dc* dc, const char* text, rt_ubase_t len, struct rtgui_rect* rect)
 {
 	struct rtgui_font_bitmap* bmp_font = (struct rtgui_font_bitmap*)(font->data);
 
@@ -213,7 +213,7 @@ static void rtgui_bitmap_font_draw_text(struct rtgui_font* font, struct rtgui_dc
 	}
 }
 
-static void rtgui_bitmap_font_get_metrics(struct rtgui_font* font, const rt_uint8_t* text, rtgui_rect_t* rect)
+static void rtgui_bitmap_font_get_metrics(struct rtgui_font* font, const char* text, rtgui_rect_t* rect)
 {
 	struct rtgui_font_bitmap* bmp_font = (struct rtgui_font_bitmap*)(font->data);
 
diff --git a/rtgui/common/font_hz_bmp.c b/rtgui/common/font_hz_bmp.c
index 239f6f9fe9..1190cb473c 100644
--- a/rtgui/common/font_hz_bmp.c
+++ b/rtgui/common/font_hz_bmp.c
@@ -4,8 +4,8 @@
 
 #ifdef RTGUI_USING_HZ_BMP
 
-static void rtgui_hz_bitmap_font_draw_text(struct rtgui_font* font, struct rtgui_dc* dc, const rt_uint8_t* text, rt_ubase_t len, struct rtgui_rect* rect);
-static void rtgui_hz_bitmap_font_get_metrics(struct rtgui_font* font, const rt_uint8_t* text, rtgui_rect_t* rect);
+static void rtgui_hz_bitmap_font_draw_text(struct rtgui_font* font, struct rtgui_dc* dc, const char* text, rt_ubase_t len, struct rtgui_rect* rect);
+static void rtgui_hz_bitmap_font_get_metrics(struct rtgui_font* font, const char* text, rtgui_rect_t* rect);
 struct rtgui_font_engine hz_bmp_font_engine =
 {
 	RT_NULL,
@@ -14,7 +14,7 @@ struct rtgui_font_engine hz_bmp_font_engine =
 	rtgui_hz_bitmap_font_get_metrics
 };
 
-static void rtgui_hz_bitmap_font_draw_text(struct rtgui_font* font, struct rtgui_dc* dc, const rt_uint8_t* text, rt_ubase_t len, struct rtgui_rect* rect)
+static void rtgui_hz_bitmap_font_draw_text(struct rtgui_font* font, struct rtgui_dc* dc, const char* text, rt_ubase_t len, struct rtgui_rect* rect)
 {
 	rt_base_t h;
 	rt_uint8_t* str;
@@ -61,7 +61,7 @@ static void rtgui_hz_bitmap_font_draw_text(struct rtgui_font* font, struct rtgui
 	}
 }
 
-static void rtgui_hz_bitmap_font_get_metrics(struct rtgui_font* font, const rt_uint8_t* text, rtgui_rect_t* rect)
+static void rtgui_hz_bitmap_font_get_metrics(struct rtgui_font* font, const char* text, rtgui_rect_t* rect)
 {
 	struct rtgui_font_bitmap* bmp_font = (struct rtgui_font_bitmap*)(font->data);
 
diff --git a/rtgui/common/font_hz_file.c b/rtgui/common/font_hz_file.c
index 11ee300f86..b805de5ad4 100644
--- a/rtgui/common/font_hz_file.c
+++ b/rtgui/common/font_hz_file.c
@@ -13,8 +13,8 @@
 static int _font_cache_compare(struct hz_cache* node1, struct hz_cache* node2);
 
 static void rtgui_hz_file_font_load(struct rtgui_font* font);
-static void rtgui_hz_file_font_draw_text(struct rtgui_font* font, struct rtgui_dc* dc, const rt_uint8_t* text, rt_ubase_t len, struct rtgui_rect* rect);
-static void rtgui_hz_file_font_get_metrics(struct rtgui_font* font, const rt_uint8_t* text, rtgui_rect_t* rect);
+static void rtgui_hz_file_font_draw_text(struct rtgui_font* font, struct rtgui_dc* dc, const char* text, rt_ubase_t len, struct rtgui_rect* rect);
+static void rtgui_hz_file_font_get_metrics(struct rtgui_font* font, const char* text, rtgui_rect_t* rect);
 struct rtgui_font_engine rtgui_hz_file_font_engine =
 {
 	RT_NULL,
@@ -91,7 +91,7 @@ static void rtgui_hz_file_font_load(struct rtgui_font* font)
     hz_file_font->fd = open(hz_file_font->font_fn, O_RDONLY, 0);
 }
 
-static void rtgui_hz_file_font_draw_text(struct rtgui_font* font, struct rtgui_dc* dc, const rt_uint8_t* text, rt_ubase_t len, struct rtgui_rect* rect)
+static void rtgui_hz_file_font_draw_text(struct rtgui_font* font, struct rtgui_dc* dc, const char* text, rt_ubase_t len, struct rtgui_rect* rect)
 {
 	rt_base_t h;
 	rt_uint8_t* str;
@@ -133,7 +133,7 @@ static void rtgui_hz_file_font_draw_text(struct rtgui_font* font, struct rtgui_d
 	}
 }
 
-static void rtgui_hz_file_font_get_metrics(struct rtgui_font* font, const rt_uint8_t* text, rtgui_rect_t* rect)
+static void rtgui_hz_file_font_get_metrics(struct rtgui_font* font, const char* text, rtgui_rect_t* rect)
 {
     struct rtgui_hz_file_font* hz_file_font = (struct rtgui_hz_file_font*)font->data;
     RT_ASSERT(hz_file_font != RT_NULL);
diff --git a/rtgui/include/rtgui/dc.h b/rtgui/include/rtgui/dc.h
index 43704d1785..955ef2c226 100644
--- a/rtgui/include/rtgui/dc.h
+++ b/rtgui/include/rtgui/dc.h
@@ -106,7 +106,7 @@ void rtgui_dc_draw_line (struct rtgui_dc* dc, int x1, int y1, int x2, int y2);
 void rtgui_dc_draw_rect (struct rtgui_dc* dc, struct rtgui_rect* rect);

 void rtgui_dc_draw_round_rect(struct rtgui_dc* dc, struct rtgui_rect* rect);
 

-void rtgui_dc_draw_text (struct rtgui_dc* dc, const rt_uint8_t* text, struct rtgui_rect* rect);

+void rtgui_dc_draw_text (struct rtgui_dc* dc, const char* text, struct rtgui_rect* rect);

 void rtgui_dc_draw_byte(struct rtgui_dc*dc, int x, int y, int h, const rt_uint8_t* data);

 void rtgui_dc_draw_word(struct rtgui_dc*dc, int x, int y, int h, const rt_uint8_t* data);

 

diff --git a/rtgui/include/rtgui/font.h b/rtgui/include/rtgui/font.h
index 43af8fd6a3..512290efde 100644
--- a/rtgui/include/rtgui/font.h
+++ b/rtgui/include/rtgui/font.h
@@ -27,9 +27,9 @@ struct rtgui_font_engine
 	void (*font_init)(struct rtgui_font* font);

 	void (*font_load)(struct rtgui_font* font);

 

-	void (*font_draw_text)(struct rtgui_font* font, struct rtgui_dc* dc, const rt_uint8_t* text,

+	void (*font_draw_text)(struct rtgui_font* font, struct rtgui_dc* dc, const char* text,

 		rt_ubase_t len, struct rtgui_rect* rect);

-	void (*font_get_metrics)(struct rtgui_font* font, const rt_uint8_t* text, struct rtgui_rect* rect);

+	void (*font_get_metrics)(struct rtgui_font* font, const char* text, struct rtgui_rect* rect);

 };

 

 /*

@@ -107,8 +107,8 @@ struct rtgui_font* rtgui_font_refer(const rt_uint8_t* family, rt_uint16_t height
 void rtgui_font_derefer(struct rtgui_font* font);

 

 /* draw a text */

-void rtgui_font_draw(struct rtgui_font* font, struct rtgui_dc* dc, const rt_uint8_t* text, rt_ubase_t len, struct rtgui_rect* rect);

-int  rtgui_font_get_string_width(struct rtgui_font* font, const rt_uint8_t* text);

-void rtgui_font_get_metrics(struct rtgui_font* font, const rt_uint8_t* text, struct rtgui_rect* rect);

+void rtgui_font_draw(struct rtgui_font* font, struct rtgui_dc* dc, const char* text, rt_ubase_t len, struct rtgui_rect* rect);

+int  rtgui_font_get_string_width(struct rtgui_font* font, const char* text);

+void rtgui_font_get_metrics(struct rtgui_font* font, const char* text, struct rtgui_rect* rect);

 

 #endif

diff --git a/rtgui/include/rtgui/widgets/button.h b/rtgui/include/rtgui/widgets/button.h
index 7ecc574ad0..8b6b18fb73 100644
--- a/rtgui/include/rtgui/widgets/button.h
+++ b/rtgui/include/rtgui/widgets/button.h
@@ -62,8 +62,8 @@ typedef void (*rtgui_onbutton_func_t)(struct rtgui_widget* widget, rtgui_event_t
 

 rtgui_type_t *rtgui_button_type_get(void);

 

-rtgui_button_t* rtgui_button_create(unsigned char* text);

-rtgui_button_t* rtgui_pushbutton_create(unsigned char* text);

+rtgui_button_t* rtgui_button_create(char* text);

+rtgui_button_t* rtgui_pushbutton_create(char* text);

 void rtgui_button_destroy(rtgui_button_t* btn);

 

 void rtgui_button_set_pressed_image(rtgui_button_t* btn, rtgui_image_t* image);

diff --git a/rtgui/include/rtgui/widgets/filelist_view.h b/rtgui/include/rtgui/widgets/filelist_view.h
index e3fab1fc90..6114403104 100644
--- a/rtgui/include/rtgui/widgets/filelist_view.h
+++ b/rtgui/include/rtgui/widgets/filelist_view.h
@@ -7,7 +7,7 @@
 #define RTGUI_FITEM_DIR       0x1

 struct rtgui_file_item

 {

-	rt_uint8_t* name;

+	char* name;

 

 	rt_uint32_t type;

 	rt_uint32_t size;

@@ -27,8 +27,8 @@ struct rtgui_filelist_view
 	/* widget private data */

 

     /* current directory */

-    rt_uint8_t* current_directory;

-    rt_uint8_t* pattern;

+    char* current_directory;

+    char* pattern;

 

     /* the number of item in a page */

     rt_uint16_t page_items;

diff --git a/rtgui/include/rtgui/widgets/iconbox.h b/rtgui/include/rtgui/widgets/iconbox.h
index 73ebd682a6..c6807e2a9b 100644
--- a/rtgui/include/rtgui/widgets/iconbox.h
+++ b/rtgui/include/rtgui/widgets/iconbox.h
@@ -37,7 +37,7 @@ struct rtgui_iconbox
 	/* widget private data */

 	struct rtgui_image* image;

 

-	unsigned char *text;

+	char *text;

 	rt_ubase_t text_position;

 

 	rt_bool_t selected;

@@ -46,7 +46,7 @@ typedef struct rtgui_iconbox rtgui_iconbox_t;
 

 rtgui_type_t *rtgui_iconbox_type_get(void);

 

-struct rtgui_iconbox* rtgui_iconbox_create(struct rtgui_image* image, const unsigned char* text, int position);

+struct rtgui_iconbox* rtgui_iconbox_create(struct rtgui_image* image, const char* text, int position);

 void rtgui_iconbox_destroy(struct rtgui_iconbox* iconbox);

 

 rt_bool_t rtgui_iconbox_event_handler(struct rtgui_widget* widget, struct rtgui_event* event);

diff --git a/rtgui/include/rtgui/widgets/label.h b/rtgui/include/rtgui/widgets/label.h
index d9f87d9b88..cced499f86 100644
--- a/rtgui/include/rtgui/widgets/label.h
+++ b/rtgui/include/rtgui/widgets/label.h
@@ -32,18 +32,18 @@ struct rtgui_label
 	struct rtgui_widget parent;

 

 	/* label */

-	unsigned char* text;

+	char* text;

 };

 typedef struct rtgui_label rtgui_label_t;

 

 rtgui_type_t *rtgui_label_type_get(void);

 

-rtgui_label_t* rtgui_label_create(const unsigned char* text);

+rtgui_label_t* rtgui_label_create(const char* text);

 void rtgui_label_destroy(rtgui_label_t* label);

 

 rt_bool_t rtgui_label_event_handler(struct rtgui_widget* widget, struct rtgui_event* event);

 

-void rtgui_label_set_text(rtgui_label_t* label, const unsigned char* text);

-unsigned char* rtgui_label_get_text(rtgui_label_t* label);

+void rtgui_label_set_text(rtgui_label_t* label, const char* text);

+char* rtgui_label_get_text(rtgui_label_t* label);

 

 #endif

diff --git a/rtgui/include/rtgui/widgets/list_view.h b/rtgui/include/rtgui/widgets/list_view.h
index 69463eb98b..d15671eca0 100644
--- a/rtgui/include/rtgui/widgets/list_view.h
+++ b/rtgui/include/rtgui/widgets/list_view.h
@@ -44,7 +44,7 @@ struct rtgui_list_view
 

 	/* widget private data */

 	/* list item */

-    struct rtgui_list_item* items;

+    const struct rtgui_list_item* items;

 

 	/* total number of items */

 	rt_uint16_t items_count;

@@ -57,10 +57,13 @@ typedef struct rtgui_list_view rtgui_list_view_t;
 

 rtgui_type_t *rtgui_list_view_type_get(void);

 

-rtgui_list_view_t* rtgui_list_view_create(struct rtgui_list_item* items, rt_uint16_t count,

+rtgui_list_view_t* rtgui_list_view_create(const struct rtgui_list_item* items, rt_uint16_t count,

     rtgui_rect_t *rect);

+void rtgui_list_view_destroy(rtgui_list_view_t* view);

+

 void rtgui_list_view_clear(rtgui_list_view_t* view);

 

 rt_bool_t rtgui_list_view_event_handler(struct rtgui_widget* widget, struct rtgui_event* event);

 

 #endif

+

diff --git a/rtgui/include/rtgui/widgets/textbox.h b/rtgui/include/rtgui/widgets/textbox.h
index c1378fd2fc..5dfc64d8c6 100644
--- a/rtgui/include/rtgui/widgets/textbox.h
+++ b/rtgui/include/rtgui/widgets/textbox.h
@@ -35,7 +35,7 @@
 

 struct rtgui_textbox_line

 {

-	rt_uint8_t* line_text;

+	char* line_text;

 

 	struct rtgui_textbox_line *prev, *next;

 };

@@ -51,7 +51,7 @@ struct rtgui_textbox
 	/* current line and position */

 	rt_uint16_t line, line_begin, position, line_length;

 

-	rt_uint8_t* text;

+	char* text;

 	rt_size_t font_width;

 

 	struct rtgui_timer* caret_timer;

diff --git a/rtgui/include/rtgui/widgets/title.h b/rtgui/include/rtgui/widgets/title.h
index 0eda0f16a4..97f4463407 100644
--- a/rtgui/include/rtgui/widgets/title.h
+++ b/rtgui/include/rtgui/widgets/title.h
@@ -28,18 +28,18 @@ struct rtgui_wintitle
 	struct rtgui_toplevel parent;

 

 	/* title */

-	rt_uint8_t* title;

+	char* title;

 };

 typedef struct rtgui_wintitle rtgui_wintitle_t;

 

 rtgui_type_t* rtgui_wintitle_type_get(void);

 

-rtgui_wintitle_t* rtgui_wintitle_create(const rt_uint8_t* title);

+rtgui_wintitle_t* rtgui_wintitle_create(const char* title);

 void rtgui_wintitle_destroy(rtgui_wintitle_t* wintitle);

 

 rt_bool_t rtgui_wintile_event_handler(rtgui_widget_t* widget, rtgui_event_t* event);

 

-void rtgui_wintitle_set_title(rtgui_wintitle_t* wintitle, const rt_uint8_t* title);

-rt_uint8_t *rtgui_wintitle_get_title(rtgui_wintitle_t* wintitle);

+void rtgui_wintitle_set_title(rtgui_wintitle_t* wintitle, const char* title);

+char *rtgui_wintitle_get_title(rtgui_wintitle_t* wintitle);

 

 #endif

diff --git a/rtgui/widgets/button.c b/rtgui/widgets/button.c
index 45db6239fb..36e010f28a 100644
--- a/rtgui/widgets/button.c
+++ b/rtgui/widgets/button.c
@@ -188,7 +188,7 @@ rt_bool_t rtgui_button_event_handler(struct rtgui_widget* widget, struct rtgui_e
 	return RT_FALSE;
 }
 
-rtgui_button_t* rtgui_button_create(unsigned char* text)
+rtgui_button_t* rtgui_button_create(char* text)
 {
     struct rtgui_button* btn;
 
@@ -208,7 +208,7 @@ rtgui_button_t* rtgui_button_create(unsigned char* text)
     return btn;
 }
 
-rtgui_button_t* rtgui_pushbutton_create(unsigned char* text)
+rtgui_button_t* rtgui_pushbutton_create(char* text)
 {
 	rtgui_button_t* btn;
 
diff --git a/rtgui/widgets/filelist_view.c b/rtgui/widgets/filelist_view.c
index 3724b84d6d..bef3f90030 100644
--- a/rtgui/widgets/filelist_view.c
+++ b/rtgui/widgets/filelist_view.c
@@ -219,7 +219,6 @@ const static char * folder_xpm[] = {
 

 /* image for file and folder */

 static rtgui_image_t *file_image, *folder_image;

-static struct rtgui_filelist_view *filelist_view = RT_NULL; /* only one view in global */

 

 static void _rtgui_filelist_view_constructor(struct rtgui_filelist_view *view)

 {

@@ -489,7 +488,7 @@ rt_bool_t rtgui_filelist_view_event_handler(struct rtgui_widget* widget, struct
 						if (strcmp(view->items[view->current_item].name, ".") == 0) return RT_FALSE;

 						if (strcmp(view->items[view->current_item].name, "..") == 0)

 						{

-							rt_uint8_t *ptr;

+							char *ptr;

 							ptr = strrchr(view->current_directory, PATH_SEPARATOR);

 

 							if (ptr == RT_NULL) return RT_FALSE;

@@ -526,11 +525,11 @@ rt_bool_t rtgui_filelist_view_event_handler(struct rtgui_widget* widget, struct
 						else

 						{

 							if (view->current_directory[strlen(view->current_directory) - 1] != PATH_SEPARATOR)

-								sprintf(new_path, "%s%c%s",view->current_directory, PATH_SEPARATOR,

+								rt_snprintf(new_path, sizeof(new_path), "%s%c%s",view->current_directory, PATH_SEPARATOR,

 									view->items[view->current_item].name);

 							else

-								sprintf(new_path, "%s%s",view->current_directory, 

-								view->items[view->current_item].name);

+								rt_snprintf(new_path, sizeof(new_path), "%s%s",view->current_directory, 

+									view->items[view->current_item].name);

 						}

 						rtgui_filelist_view_set_directory(view, new_path);

 					}

@@ -616,7 +615,7 @@ void rtgui_filelist_view_clear(rtgui_filelist_view_t* view)
 

 void rtgui_filelist_view_set_directory(rtgui_filelist_view_t* view, const char* directory)

 {

-    rt_uint8_t fullpath[256];

+    char fullpath[256];

     struct rtgui_file_item *item;

 

     RT_ASSERT(view != RT_NULL);

@@ -693,9 +692,9 @@ void rtgui_filelist_view_set_directory(rtgui_filelist_view_t* view, const char*
 

 			/* build full path for the file */

 			if (directory[strlen(directory) - 1] != PATH_SEPARATOR)

-				sprintf(fullpath, "%s%c%s", directory, PATH_SEPARATOR, dirent->d_name);

+				rt_sprintf(fullpath, "%s%c%s", directory, PATH_SEPARATOR, dirent->d_name);

 			else

-				sprintf(fullpath, "%s%s", directory, dirent->d_name);

+				rt_sprintf(fullpath, "%s%s", directory, dirent->d_name);

 

 			stat(fullpath, &s);

 			if ( s.st_mode & S_IFDIR )

@@ -726,4 +725,4 @@ void rtgui_filelist_get_fullpath(rtgui_filelist_view_t* view, char* path, rt_siz
 

 	rt_sprintf(path, "%s%c%s", view->current_directory, PATH_SEPARATOR,

 		view->items[view->current_item].name);

-}
\ No newline at end of file
+}

diff --git a/rtgui/widgets/iconbox.c b/rtgui/widgets/iconbox.c
index 65f094e64f..7a25f3df26 100644
--- a/rtgui/widgets/iconbox.c
+++ b/rtgui/widgets/iconbox.c
@@ -76,7 +76,7 @@ rt_bool_t rtgui_iconbox_event_handler(struct rtgui_widget* widget, struct rtgui_
 }
 
 struct rtgui_iconbox* rtgui_iconbox_create(struct rtgui_image* image,
-	const unsigned char* text,
+	const char* text,
 	int position)
 {
     struct rtgui_iconbox* iconbox;
@@ -115,7 +115,7 @@ struct rtgui_iconbox* rtgui_iconbox_create(struct rtgui_image* image,
 
 		/* set image and text position */
 		iconbox->image = image;
-		iconbox->text = (unsigned char*)rt_strdup((const char*)text);
+		iconbox->text = (char*)rt_strdup((const char*)text);
 		iconbox->text_position = position;
 	}
 
diff --git a/rtgui/widgets/label.c b/rtgui/widgets/label.c
index 574ec7cea7..ae5448080c 100644
--- a/rtgui/widgets/label.c
+++ b/rtgui/widgets/label.c
@@ -64,7 +64,7 @@ rt_bool_t rtgui_label_event_handler(struct rtgui_widget* widget, struct rtgui_ev
 	return RT_FALSE;
 }
 
-rtgui_label_t* rtgui_label_create(const unsigned char* text)
+rtgui_label_t* rtgui_label_create(const char* text)
 {
     struct rtgui_label* label;
 
@@ -80,7 +80,7 @@ rtgui_label_t* rtgui_label_create(const unsigned char* text)
 		rtgui_widget_set_rect(RTGUI_WIDGET(label), &rect);
 
 		/* set text */
-		label->text = (unsigned char*)rt_strdup((const char*)text);
+		label->text = (char*)rt_strdup((const char*)text);
     }
 
     return label;
@@ -91,14 +91,14 @@ void rtgui_label_destroy(rtgui_label_t* label)
 	rtgui_widget_destroy(RTGUI_WIDGET(label));
 }
 
-unsigned char* rtgui_label_get_text(rtgui_label_t* label)
+char* rtgui_label_get_text(rtgui_label_t* label)
 {
 	RT_ASSERT(label != RT_NULL);
 
 	return label->text;
 }
 
-void rtgui_label_set_text(rtgui_label_t* label, const unsigned char* text)
+void rtgui_label_set_text(rtgui_label_t* label, const char* text)
 {
 	RT_ASSERT(label != RT_NULL);
 
@@ -108,7 +108,7 @@ void rtgui_label_set_text(rtgui_label_t* label, const unsigned char* text)
 		rt_free(label->text);
 	}
 
-	if (text != RT_NULL) label->text = (unsigned char*)rt_strdup((const char*)text);
+	if (text != RT_NULL) label->text = (char*)rt_strdup((const char*)text);
 	else label->text = RT_NULL;
 
 	/* update widget */
diff --git a/rtgui/widgets/list_view.c b/rtgui/widgets/list_view.c
index 42f50b702c..857a9454a1 100644
--- a/rtgui/widgets/list_view.c
+++ b/rtgui/widgets/list_view.c
@@ -54,7 +54,7 @@ void rtgui_list_view_ondraw(struct rtgui_list_view* view)
 	struct rtgui_rect rect, item_rect;

 	struct rtgui_dc* dc;

 	rt_uint16_t page_index, index;

-	struct rtgui_list_item* item;

+	const struct rtgui_list_item* item;

 

 	dc = rtgui_dc_begin_drawing(RTGUI_WIDGET(view));

 	if (dc == RT_NULL) return;

@@ -103,7 +103,7 @@ void rtgui_list_view_ondraw(struct rtgui_list_view* view)
 void rtgui_list_view_update_current(struct rtgui_list_view* view, rt_uint16_t old_item)

 {

 	struct rtgui_dc* dc;

-	struct rtgui_list_item* item;

+	const struct rtgui_list_item* item;

 	rtgui_rect_t rect, item_rect;

 

 	if (old_item/view->page_items != view->current_item/view->page_items)

@@ -267,7 +267,7 @@ rt_bool_t rtgui_list_view_event_handler(struct rtgui_widget* widget, struct rtgu
     return rtgui_view_event_handler(widget, event);

 }

 

-rtgui_list_view_t* rtgui_list_view_create(struct rtgui_list_item* items, rt_uint16_t count, rtgui_rect_t *rect)

+rtgui_list_view_t* rtgui_list_view_create(const struct rtgui_list_item* items, rt_uint16_t count, rtgui_rect_t *rect)

 {

 	struct rtgui_list_view* view = RT_NULL;

 

diff --git a/rtgui/widgets/textbox.c b/rtgui/widgets/textbox.c
index c28f193b37..d7e6ca798d 100644
--- a/rtgui/widgets/textbox.c
+++ b/rtgui/widgets/textbox.c
@@ -156,7 +156,7 @@ static void rtgui_textbox_onkey(struct rtgui_textbox* box, struct rtgui_event_kb
 		}
 		else
 		{
-			unsigned char *c;
+			char *c;
 
 			/* remove character */
 			for (c = &box->text[box->position]; c[1] != '\0'; c++)
@@ -176,7 +176,7 @@ static void rtgui_textbox_onkey(struct rtgui_textbox* box, struct rtgui_event_kb
 			/* remove current character */
 			if (box->position != 0)
 			{
-				unsigned char *c;
+				char *c;
 
 				/* remove character */
 				for (c = &box->text[box->position - 1]; c[1] != '\0'; c++)
@@ -218,7 +218,7 @@ static void rtgui_textbox_onkey(struct rtgui_textbox* box, struct rtgui_event_kb
 
 			if (box->position < length - 1)
 			{
-				unsigned char* c;
+				char* c;
 
 				for (c = &box->text[length]; c != &box->text[box->position]; c--)
 					*c = *(c-1);
diff --git a/rtgui/widgets/title.c b/rtgui/widgets/title.c
index 005f125ee2..c1b2419f37 100644
--- a/rtgui/widgets/title.c
+++ b/rtgui/widgets/title.c
@@ -43,7 +43,7 @@ rtgui_type_t* rtgui_wintitle_type_get()
 	return wintitle_type;
 }
 
-rtgui_wintitle_t* rtgui_wintitle_create(const rt_uint8_t* title)
+rtgui_wintitle_t* rtgui_wintitle_create(const char* title)
 {
 	rtgui_wintitle_t* wintitle;
 
@@ -61,7 +61,7 @@ void rtgui_wintitle_destroy(rtgui_wintitle_t* wintitle)
 	rtgui_widget_destroy(RTGUI_WIDGET(wintitle));
 }
 
-void rtgui_wintitle_set_title(rtgui_wintitle_t* wintitle, const rt_uint8_t* title)
+void rtgui_wintitle_set_title(rtgui_wintitle_t* wintitle, const char* title)
 {
 	RT_ASSERT(wintitle != RT_NULL);
 
@@ -70,11 +70,11 @@ void rtgui_wintitle_set_title(rtgui_wintitle_t* wintitle, const rt_uint8_t* titl
 		rtgui_free(wintitle->title);
 	}
 
-	if (title != RT_NULL) wintitle->title = (unsigned char*)rt_strdup((const char*)title);
+	if (title != RT_NULL) wintitle->title = (char*)rt_strdup((const char*)title);
 	else wintitle->title = RT_NULL;
 }
 
-rt_uint8_t *rtgui_wintitle_get_title(rtgui_wintitle_t* wintitle)
+char *rtgui_wintitle_get_title(rtgui_wintitle_t* wintitle)
 {
 	RT_ASSERT(wintitle != RT_NULL);