1 files changed, 351 insertions, 352 deletions
diff --git a/components/rtgui/widgets/textview.c b/components/rtgui/widgets/textview.c
index 2bb7a41e1d..fe57b82ab2 100644
--- a/components/rtgui/widgets/textview.c
+++ b/components/rtgui/widgets/textview.c
@@ -1,352 +1,351 @@
-/*
- * File      : textview.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2011, RT-Thread Development Team
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
- *
- * Change Logs:
- * Date           Author       Notes
- * 2011-03-05     Bernard      first version
- */
-#include <rtgui/dc.h>
-#include <rtgui/rtgui_system.h>
-#include <rtgui/widgets/textview.h>
-
-rt_inline char* _get_line_text(rtgui_textview_t *textview, rt_uint16_t index)
-{
-	char* line;
-	if (index < textview->line_count)
-	{
-		line = textview->lines + (index * textview->line_width);
-		return line;
-	}
-
-	return RT_NULL;
-}
-
-static void _calc_line(rtgui_textview_t *textview, const char* text)
-{
-	char* line;
-	const unsigned char* ptr;
-	rt_ubase_t line_index, line_position;
-
-	if (textview->lines != RT_NULL)
-	{
-		rt_free(textview->lines);
-		textview->lines = RT_NULL;
-		textview->line_count = 0;
-	}
-
-	/* get line count */
-	line_index = 0; line_position = 0;
-	ptr = (const unsigned char*)text;
-	if (*ptr == 0) return;
-
-	while (*ptr != '\0')
-	{
-		if (*ptr == '\n') 
-		{
-			line_index ++;
-			line_position = 0;
-		}
-		else if (*ptr == '\r')
-		{
-			ptr ++;
-			continue;
-		}
-		else if (*ptr == '\t')
-		{
-			line_position += 4;
-			if (line_position >= textview->line_width - 1)
-			{
-				line_index ++;
-				line_position = 0;
-			}
-		}
-		else 
-		{
-			if ((*ptr) >= 0x80)
-			{
-				/* fill cjk character */
-				if (line_position + 1 >= (textview->line_width - 1))
-				{
-					/* split to next line */
-					line_index ++;
-					line_position = 0;
-				}
-
-				line_position ++;
-				line_position ++;
-			}
-			else 
-			{
-				line_position ++;
-			}
-
-			if (line_position >= textview->line_width - 1)
-			{
-				line_index ++;
-				line_position = 0;
-			}
-		}
-
-		ptr ++;
-	}
-
-	/* set line count */
-	textview->line_count = line_index + 1;
-
-	/* allocate lines */
-	textview->lines = rt_malloc(textview->line_count * textview->line_width);
-	rt_memset(textview->lines, 0, (textview->line_count * textview->line_width));
-
-	/* fill lines */
-	line_index = 0; line_position = 0;
-	ptr = (const unsigned char*)text;
-	line = _get_line_text(textview, line_index);
-	while (*ptr)
-	{
-		if (*ptr == '\n') 
-		{
-			line_index ++;
-			line_position = 0;
-			line = _get_line_text(textview, line_index);
-		}
-		else if (*ptr == '\r')
-		{
-			/* ignore '\r' */
-			ptr ++;
-			continue;
-		}
-		else if (*ptr == '\t')
-		{
-			line[line_position++] = ' ';
-			line[line_position++] = ' ';
-			line[line_position++] = ' ';
-			line[line_position++] = ' ';
-			if (line_position >= textview->line_width - 1)
-			{
-				line_index ++;
-				line_position = 0;
-				line = _get_line_text(textview, line_index);
-			}
-		}
-		else 
-		{
-			if ((*ptr) >= 0x80)
-			{
-				/* fill cjk character */
-				if (line_position + 1 >= (textview->line_width - 1))
-				{
-					/* split to next line */
-					line_index ++;
-					line_position = 0;
-					line = _get_line_text(textview, line_index);
-				}
-
-				line[line_position ++] = *ptr ++;
-				line[line_position ++] = *ptr;
-			}
-			else 
-			{
-				line[line_position ++] = *ptr;
-			}
-
-			if (line_position >= textview->line_width - 1)
-			{
-				line_index ++;
-				line_position = 0;
-				line = _get_line_text(textview, line_index);
-			}
-		}
-
-		ptr ++;
-	}
-
-	textview->line_current = 0;
-}
-
-static void _calc_width(rtgui_textview_t *textview)
-{
-	rtgui_rect_t rect;
-	rt_uint16_t width, height;
-
-	width = rtgui_rect_width(RTGUI_WIDGET(textview)->extent) - 6;
-	height = rtgui_rect_height(RTGUI_WIDGET(textview)->extent);
-
-	rtgui_font_get_metrics(RTGUI_WIDGET_FONT(RTGUI_WIDGET(textview)), "W", &rect);
-	textview->line_width = width / rtgui_rect_width(rect) + 1;
-	textview->line_page_count = height / (rtgui_rect_height(rect) + 3);
-
-	/* set minimal value */
-	if (textview->line_page_count == 0) textview->line_page_count = 1;
-}
-
-static void _draw_textview(rtgui_textview_t *textview)
-{
-	struct rtgui_dc* dc;
-	struct rtgui_rect rect, font_rect;
-	char* line;
-	rt_ubase_t line_index, item_height;
-
-	rtgui_font_get_metrics(RTGUI_WIDGET_FONT(RTGUI_WIDGET(textview)), "W", &font_rect);
-	item_height = rtgui_rect_height(font_rect) + 3;
-
-	dc = rtgui_dc_begin_drawing(RTGUI_WIDGET(textview));
-	if (dc == RT_NULL) return ;
-
-	/* fill rect */
-	rtgui_widget_get_rect(RTGUI_WIDGET(textview), &rect);
-	rtgui_dc_fill_rect(dc, &rect);
-
-	rect.x1 += 3;
-	rect.x2 -= 3;
-
-	for (line_index = textview->line_current; 
-		(line_index < textview->line_current + textview->line_page_count) &&
-		(line_index < textview->line_count); 
-		line_index ++)
-	{
-		line = (char* )_get_line_text(textview, line_index);
-		rtgui_dc_draw_text(dc, line, &rect);
-
-		rect.y1 += item_height;
-	}
-
-	rtgui_dc_end_drawing(dc);
-}
-
-static void _rtgui_textview_constructor(rtgui_textview_t *textview)
-{
-	/* init widget and set event handler */
-	rtgui_widget_set_event_handler(RTGUI_WIDGET(textview), rtgui_textview_event_handler);
-	RTGUI_WIDGET(textview)->flag |= RTGUI_WIDGET_FLAG_FOCUSABLE;
-
-	/* set field */
-	textview->line_count = 0;
-	textview->lines = RT_NULL;
-
-	textview->line_current = -1;
-	textview->line_page_count = 1;
-}
-
-static void _rtgui_textview_destructor(rtgui_textview_t *textview)
-{
-	/* release line memory */
-	rt_free(textview->lines);
-	textview->lines = RT_NULL;
-}
-
-DEFINE_CLASS_TYPE(textview, "textview", 
-	RTGUI_WIDGET_TYPE,
-	_rtgui_textview_constructor,
-	_rtgui_textview_destructor,
-	sizeof(struct rtgui_textview));
-
-rt_bool_t rtgui_textview_event_handler(struct rtgui_widget* widget, struct rtgui_event* event)
-{
-	struct rtgui_textview* textview;
-
-	RT_ASSERT(widget != RT_NULL);
-
-	textview = (struct rtgui_textview*) widget;
-	switch (event->type)
-	{
-	case RTGUI_EVENT_PAINT:
-		_draw_textview(textview);
-		break;
-	
-	case RTGUI_EVENT_KBD:
-		{
-		struct rtgui_event_kbd* ekbd = (struct rtgui_event_kbd*)event;
-		if (ekbd->type == RTGUI_KEYDOWN)
-		{
-			rt_int16_t line_current_update;
-			line_current_update = textview->line_current;
-			if (ekbd->key == RTGUIK_LEFT)
-			{
-				if (textview->line_current > textview->line_page_count)
-				{
-					line_current_update -= textview->line_page_count;
-				}
-				else if (textview->line_current > 0)
-				{
-					line_current_update = 0;
-				}
-			}
-			else if (ekbd->key == RTGUIK_RIGHT)
-			{
-				if (textview->line_current + textview->line_page_count < textview->line_count - 1)
-				{
-					line_current_update += textview->line_page_count;
-				}
-			}
-			else if (ekbd->key == RTGUIK_UP)
-			{
-				if (textview->line_current > 0)
-				{
-					line_current_update --;
-				}
-			}
-			else if (ekbd->key == RTGUIK_DOWN)
-			{
-				if (textview->line_current + textview->line_page_count < textview->line_count - 1)
-				{
-					line_current_update ++;
-				}
-			}
-
-			if (textview->line_current != line_current_update)
-			{
-				textview->line_current = line_current_update;
-				rtgui_widget_update(widget);
-				return RT_TRUE;
-			}
-		}
-		break;
-		}
-	}
-
-	return RT_FALSE;
-}
-
-rtgui_textview_t* rtgui_textview_create(const char* text, const rtgui_rect_t *rect)
-{
-    struct rtgui_textview* textview;
-
-    textview = (struct rtgui_textview*) rtgui_widget_create(RTGUI_TEXTVIEW_TYPE);
-    if (textview != RT_NULL)
-    {
-		rtgui_widget_set_rect(RTGUI_WIDGET(textview), rect);
-
-		/* calculate line width and line page count */
-		_calc_width(textview);
-
-		/* set text */
-		_calc_line(textview, text);
-    }
-
-    return textview;
-}
-
-void rtgui_textview_destroy(rtgui_textview_t* textview)
-{
-	rtgui_widget_destroy(RTGUI_WIDGET(textview));
-}
-
-void rtgui_textview_set_text(rtgui_textview_t* textview, const char* text)
-{
-	RT_ASSERT(textview != RT_NULL);
-
-	/* calculate line width and line page count */
-	_calc_width(textview);
-
-	/* set text */
-	_calc_line(textview, text);
-
-	/* update widget */
-	rtgui_widget_update(RTGUI_WIDGET(textview));
-}
+/*
+ * File      : textview.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2011, RT-Thread Development Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2011-03-05     Bernard      first version
+ */
+#include <rtgui/dc.h>
+#include <rtgui/rtgui_system.h>
+#include <rtgui/widgets/textview.h>
+
+rt_inline char* _get_line_text(rtgui_textview_t *textview, rt_uint16_t index)
+{
+	char* line;
+	if (index < textview->line_count)
+	{
+		line = textview->lines + (index * textview->line_width);
+		return line;
+	}
+
+	return RT_NULL;
+}
+
+static void _calc_line(rtgui_textview_t *textview, const char* text)
+{
+	char* line;
+	const unsigned char* ptr;
+	rt_ubase_t line_index, line_position;
+
+	if (textview->lines != RT_NULL)
+	{
+		rt_free(textview->lines);
+		textview->lines = RT_NULL;
+		textview->line_count = 0;
+	}
+
+	/* get line count */
+	line_index = 0; line_position = 0;
+	ptr = (const unsigned char*)text;
+	if (*ptr == 0) return;
+
+	while (*ptr != '\0')
+	{
+		if (*ptr == '\n') 
+		{
+			line_index ++;
+			line_position = 0;
+		}
+		else if (*ptr == '\r')
+		{
+			ptr ++;
+			continue;
+		}
+		else if (*ptr == '\t')
+		{
+			line_position += 4;
+			if (line_position >= textview->line_width - 1)
+			{
+				line_index ++;
+				line_position = 0;
+			}
+		}
+		else 
+		{
+			if ((*ptr) >= 0x80)
+			{
+				/* fill cjk character */
+				if (line_position + 1 >= (textview->line_width - 1))
+				{
+					/* split to next line */
+					line_index ++;
+					line_position = 0;
+				}
+
+				line_position ++;
+				line_position ++;
+			}
+			else 
+			{
+				line_position ++;
+			}
+
+			if (line_position >= textview->line_width - 1)
+			{
+				line_index ++;
+				line_position = 0;
+			}
+		}
+
+		ptr ++;
+	}
+
+	/* set line count */
+	textview->line_count = line_index + 1;
+
+	/* allocate lines */
+	textview->lines = rt_malloc(textview->line_count * textview->line_width);
+	rt_memset(textview->lines, 0, (textview->line_count * textview->line_width));
+
+	/* fill lines */
+	line_index = 0; line_position = 0;
+	ptr = (const unsigned char*)text;
+	line = _get_line_text(textview, line_index);
+	while (*ptr)
+	{
+		if (*ptr == '\n') 
+		{
+			line_index ++;
+			line_position = 0;
+			line = _get_line_text(textview, line_index);
+		}
+		else if (*ptr == '\r')
+		{
+			/* ignore '\r' */
+			ptr ++;
+			continue;
+		}
+		else if (*ptr == '\t')
+		{
+			line[line_position++] = ' ';
+			line[line_position++] = ' ';
+			line[line_position++] = ' ';
+			line[line_position++] = ' ';
+			if (line_position >= textview->line_width - 1)
+			{
+				line_index ++;
+				line_position = 0;
+				line = _get_line_text(textview, line_index);
+			}
+		}
+		else 
+		{
+			if ((*ptr) >= 0x80)
+			{
+				/* fill cjk character */
+				if (line_position + 1 >= (textview->line_width - 1))
+				{
+					/* split to next line */
+					line_index ++;
+					line_position = 0;
+					line = _get_line_text(textview, line_index);
+				}
+
+				line[line_position ++] = *ptr ++;
+				line[line_position ++] = *ptr;
+			}
+			else 
+			{
+				line[line_position ++] = *ptr;
+			}
+
+			if (line_position >= textview->line_width - 1)
+			{
+				line_index ++;
+				line_position = 0;
+				line = _get_line_text(textview, line_index);
+			}
+		}
+
+		ptr ++;
+	}
+
+	textview->line_current = 0;
+}
+
+static void _calc_width(rtgui_textview_t *textview)
+{
+	rtgui_rect_t rect;
+	rt_uint16_t width, height;
+
+	width = rtgui_rect_width(RTGUI_WIDGET(textview)->extent) - 6;
+	height = rtgui_rect_height(RTGUI_WIDGET(textview)->extent);
+
+	rtgui_font_get_metrics(RTGUI_WIDGET_FONT(RTGUI_WIDGET(textview)), "W", &rect);
+	textview->line_width = width / rtgui_rect_width(rect) + 1;
+	textview->line_page_count = height / (rtgui_rect_height(rect) + 3);
+
+	/* set minimal value */
+	if (textview->line_page_count == 0) textview->line_page_count = 1;
+}
+
+static void _draw_textview(rtgui_textview_t *textview)
+{
+	struct rtgui_dc* dc;
+	struct rtgui_rect rect, font_rect;
+	char* line;
+	rt_ubase_t line_index, item_height;
+
+	rtgui_font_get_metrics(RTGUI_WIDGET_FONT(RTGUI_WIDGET(textview)), "W", &font_rect);
+	item_height = rtgui_rect_height(font_rect) + 3;
+
+	dc = rtgui_dc_begin_drawing(RTGUI_WIDGET(textview));
+	if (dc == RT_NULL) return ;
+
+	/* fill rect */
+	rtgui_widget_get_rect(RTGUI_WIDGET(textview), &rect);
+	rtgui_dc_fill_rect(dc, &rect);
+
+	rect.x1 += 3;
+	rect.x2 -= 3;
+
+	for (line_index = textview->line_current; 
+		(line_index < textview->line_current + textview->line_page_count) &&
+		(line_index < textview->line_count); 
+		line_index ++)
+	{
+		line = (char* )_get_line_text(textview, line_index);
+		rtgui_dc_draw_text(dc, line, &rect);
+
+		rect.y1 += item_height;
+	}
+
+	rtgui_dc_end_drawing(dc);
+}
+
+static void _rtgui_textview_constructor(rtgui_textview_t *textview)
+{
+	/* init widget and set event handler */
+	rtgui_object_set_event_handler(RTGUI_OBJECT(textview), rtgui_textview_event_handler);
+	RTGUI_WIDGET(textview)->flag |= RTGUI_WIDGET_FLAG_FOCUSABLE;
+
+	/* set field */
+	textview->line_count = 0;
+	textview->lines = RT_NULL;
+
+	textview->line_current = -1;
+	textview->line_page_count = 1;
+}
+
+static void _rtgui_textview_destructor(rtgui_textview_t *textview)
+{
+	/* release line memory */
+	rt_free(textview->lines);
+	textview->lines = RT_NULL;
+}
+
+DEFINE_CLASS_TYPE(textview, "textview",
+	RTGUI_WIDGET_TYPE,
+	_rtgui_textview_constructor,
+	_rtgui_textview_destructor,
+	sizeof(struct rtgui_textview));
+
+rt_bool_t rtgui_textview_event_handler(struct rtgui_object* object, struct rtgui_event* event)
+{
+	struct rtgui_textview* textview;
+	RTGUI_WIDGET_EVENT_HANDLER_PREPARE
+
+	textview = RTGUI_TEXTVIEW(object);
+	switch (event->type)
+	{
+	case RTGUI_EVENT_PAINT:
+		_draw_textview(textview);
+		break;
+
+	case RTGUI_EVENT_KBD:
+		{
+		struct rtgui_event_kbd* ekbd = (struct rtgui_event_kbd*)event;
+		if (ekbd->type == RTGUI_KEYDOWN)
+		{
+			rt_int16_t line_current_update;
+			line_current_update = textview->line_current;
+			if (ekbd->key == RTGUIK_LEFT)
+			{
+				if (textview->line_current > textview->line_page_count)
+				{
+					line_current_update -= textview->line_page_count;
+				}
+				else if (textview->line_current > 0)
+				{
+					line_current_update = 0;
+				}
+			}
+			else if (ekbd->key == RTGUIK_RIGHT)
+			{
+				if (textview->line_current + textview->line_page_count < textview->line_count - 1)
+				{
+					line_current_update += textview->line_page_count;
+				}
+			}
+			else if (ekbd->key == RTGUIK_UP)
+			{
+				if (textview->line_current > 0)
+				{
+					line_current_update --;
+				}
+			}
+			else if (ekbd->key == RTGUIK_DOWN)
+			{
+				if (textview->line_current + textview->line_page_count < textview->line_count - 1)
+				{
+					line_current_update ++;
+				}
+			}
+
+			if (textview->line_current != line_current_update)
+			{
+				textview->line_current = line_current_update;
+				rtgui_widget_update(widget);
+				return RT_TRUE;
+			}
+		}
+		break;
+		}
+	}
+
+	return RT_FALSE;
+}
+
+rtgui_textview_t* rtgui_textview_create(const char* text, const rtgui_rect_t *rect)
+{
+    struct rtgui_textview* textview;
+
+    textview = (struct rtgui_textview*) rtgui_widget_create(RTGUI_TEXTVIEW_TYPE);
+    if (textview != RT_NULL)
+    {
+		rtgui_widget_set_rect(RTGUI_WIDGET(textview), rect);
+
+		/* calculate line width and line page count */
+		_calc_width(textview);
+
+		/* set text */
+		_calc_line(textview, text);
+    }
+
+    return textview;
+}
+
+void rtgui_textview_destroy(rtgui_textview_t* textview)
+{
+	rtgui_widget_destroy(RTGUI_WIDGET(textview));
+}
+
+void rtgui_textview_set_text(rtgui_textview_t* textview, const char* text)
+{
+	RT_ASSERT(textview != RT_NULL);
+
+	/* calculate line width and line page count */
+	_calc_width(textview);
+
+	/* set text */
+	_calc_line(textview, text);
+
+	/* update widget */
+	rtgui_widget_update(RTGUI_WIDGET(textview));
+}