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update font engine. 

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@966 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong@gmail.com 2010-09-27 15:36:03 +00:00
parent d33bee4762
commit 9641f5b7a0
4 changed files with 140 additions and 66 deletions
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36
components/rtgui/common/dc.c
View File

@ -265,9 +265,6 @@ void rtgui_dc_draw_text (struct rtgui_dc* dc, const char* text, struct rtgui_rec
{
rt_uint32_t len;
struct rtgui_font *font;
#ifdef RTGUI_USING_FONTHZ
struct rtgui_font *gb2312_font;
#endif
struct rtgui_rect text_rect;
RT_ASSERT(dc != RT_NULL);
@ -279,45 +276,12 @@ void rtgui_dc_draw_text (struct rtgui_dc* dc, const char* text, struct rtgui_rec
font = rtgui_font_default();
}
#ifdef RTGUI_USING_FONTHZ
gb2312_font = rtgui_font_refer("hz", font->height);
if (gb2312_font == RT_NULL)
{
gb2312_font = rtgui_font_refer("hz", 16);
}
#endif
/* text align */
rtgui_font_get_metrics(font, text, &text_rect);
rtgui_rect_moveto_align(rect, &text_rect, RTGUI_DC_TEXTALIGN(dc));
#ifdef RTGUI_USING_FONTHZ
while (*text)
{
len = 0;
while (((rt_uint8_t)*(text + len)) < 0x80 && *(text + len)) len ++;
if (len > 0)
{
rtgui_font_draw(font, dc, text, len, &text_rect);
text += len;
}
len = 0;
while (((rt_uint8_t)*(text + len)) > 0x80) len ++;
if (len > 0)
{
rtgui_font_draw(gb2312_font, dc, text, len, &text_rect);
text += len;
}
}
rtgui_font_derefer(gb2312_font);
#else
len = strlen((const char*)text);
rtgui_font_draw(font, dc, text, len, &text_rect);
#endif
}
/*

82
components/rtgui/common/font_bmp.c
View File

@ -70,49 +70,81 @@ 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 char* text, rt_ubase_t len, struct rtgui_rect* rect)
{
rt_uint32_t length;
struct rtgui_font* hz_font;
struct rtgui_font_bitmap* bmp_font = (struct rtgui_font_bitmap*)(font->data);
RT_ASSERT(bmp_font != RT_NULL);
while (len-- && rect->x1 < rect->x2)
hz_font = rtgui_font_refer("hz", font->height);
while ((rect->x1 < rect->x2) && len)
{
rtgui_bitmap_font_draw_char(bmp_font, dc, *text, rect);
length = 0;
while ((rt_uint8_t)*(text + length) >= 0x80) length ++; /* it's not a ascii character */
if (length > 0)
{
if (hz_font != RT_NULL)
rtgui_font_draw(hz_font, dc, text, length, rect);
text += length;
len -= length;
}
/* move x to next character */
if (bmp_font->char_width == RT_NULL)
rect->x1 += bmp_font->width;
else
rect->x1 += bmp_font->char_width[*text - bmp_font->first_char];
text ++;
length = 0;
while (((rt_uint8_t)*(text + length) < 0x80) && *(text + length)) length ++;
if (length > 0)
{
len -= length;
while (length-- && rect->x1 < rect->x2)
{
rtgui_bitmap_font_draw_char(bmp_font, dc, *text, rect);
/* move x to next character */
if (bmp_font->char_width == RT_NULL)
rect->x1 += bmp_font->width;
else
rect->x1 += bmp_font->char_width[*text - bmp_font->first_char];
text ++;
}
}
}
rtgui_font_derefer(hz_font);
}
static void rtgui_bitmap_font_get_metrics(struct rtgui_font* font, const char* text, rtgui_rect_t* rect)
{
rt_uint32_t length;
struct rtgui_font_bitmap* bmp_font = (struct rtgui_font_bitmap*)(font->data);
RT_ASSERT(bmp_font != RT_NULL);
if (bmp_font->char_width != NULL)
/* set init metrics rect */
rect->x1 = rect->y1 = 0;rect->x2 = 0;
rect->y2 = bmp_font->height;
while (*text)
{
rt_uint32_t index;
length = 0;
while (*(text + length) >= 0x80) length ++; /* it's not a ascii character */
rect->x2 += (font->height/2) * length;
text += length;
/* set metrics rect */
rect->x1 = rect->y1 = 0;rect->x2 = 0;
rect->y2 = bmp_font->height;
/* get width for each character */
while (*text)
length = 0;
while ((*(text + length) < 0x80) && *(text + length)) length ++;
if (bmp_font->char_width != NULL)
{
rect->x2 += bmp_font->char_width[*text - bmp_font->first_char];
text ++;
/* get width for each character */
while (*text < 0x80)
{
rect->x2 += bmp_font->char_width[*text - bmp_font->first_char];
text ++;
}
}
else
{
/* set metrics rect */
rect->x2 += bmp_font->width * length;
text += length;
}
}
else
{
/* set metrics rect */
rect->x1 = rect->y1 = 0;
rect->x2 = bmp_font->width * (rt_int16_t)rt_strlen((const char*)text);
rect->y2 = bmp_font->height;
}
}

43
components/rtgui/common/font_hz_bmp.c
View File

@ -14,11 +14,10 @@ const 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 char* text, rt_ubase_t len, struct rtgui_rect* rect)
static void _rtgui_hz_bitmap_font_draw_text(struct rtgui_font_bitmap* bmp_font, struct rtgui_dc* dc, const char* text, rt_ubase_t len, struct rtgui_rect* rect)
{
register rt_base_t h, word_bytes;
rt_uint8_t* str;
struct rtgui_font_bitmap* bmp_font = (struct rtgui_font_bitmap*)(font->data);
RT_ASSERT(bmp_font != RT_NULL);
@ -62,6 +61,45 @@ static void rtgui_hz_bitmap_font_draw_text(struct rtgui_font* font, struct rtgui
}
}
static void rtgui_hz_bitmap_font_draw_text (struct rtgui_font* font, struct rtgui_dc* dc, const char* text, rt_ubase_t length, struct rtgui_rect* rect)
{
rt_uint32_t len;
struct rtgui_font *efont;
struct rtgui_font_bitmap* bmp_font = (struct rtgui_font_bitmap*)(font->data);
RT_ASSERT(dc != RT_NULL);
/* get English font */
efont = rtgui_font_refer("asc", bmp_font->height);
if (efont == RT_NULL) efont = rtgui_font_default(); /* use system default font */
while (length > 0)
{
len = 0;
while (((rt_uint8_t)*(text + len)) < 0x80 && *(text + len)) len ++;
/* draw text with English font */
if (len > 0)
{
rtgui_font_draw(efont, dc, text, len, rect);
text += len;
length -= len;
}
len = 0;
while (((rt_uint8_t)*(text + len)) >= 0x80) len ++;
if (len > 0)
{
_rtgui_hz_bitmap_font_draw_text(bmp_font, dc, text, len, rect);
text += len;
length -= len;
}
}
rtgui_font_derefer(efont);
}
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);
@ -70,6 +108,7 @@ static void rtgui_hz_bitmap_font_get_metrics(struct rtgui_font* font, const char
/* set metrics rect */
rect->x1 = rect->y1 = 0;
/* Chinese font is always fixed font */
rect->x2 = (rt_int16_t)(bmp_font->width * rt_strlen((const char*)text));
rect->y2 = bmp_font->height;
}

45
components/rtgui/common/font_hz_file.c
View File

@ -5,6 +5,7 @@
#include <rtgui/font.h>
#include <rtgui/tree.h>
#include <rtgui/rtgui_system.h>
#ifdef RTGUI_USING_HZ_FILE
#include <dfs_posix.h>
@ -91,12 +92,10 @@ 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 char* text, rt_ubase_t len, struct rtgui_rect* rect)
static void _rtgui_hz_file_font_draw_text(struct rtgui_hz_file_font* hz_file_font, struct rtgui_dc* dc, const char* text, rt_ubase_t len, struct rtgui_rect* rect)
{
register rt_base_t h, word_bytes;
rt_uint8_t* str;
struct rtgui_hz_file_font* hz_file_font = (struct rtgui_hz_file_font*)font->data;
RT_ASSERT(hz_file_font != RT_NULL);
/* drawing height */
h = (hz_file_font->font_size + rect->y1 > rect->y2)?
@ -134,6 +133,46 @@ static void rtgui_hz_file_font_draw_text(struct rtgui_font* font, struct rtgui_d
}
}
static void rtgui_hz_file_font_draw_text(struct rtgui_font* font, struct rtgui_dc* dc, const char* text, rt_ubase_t length, struct rtgui_rect* rect)
{
rt_uint32_t len;
struct rtgui_font *efont;
struct rtgui_hz_file_font* hz_file_font = (struct rtgui_hz_file_font*)font->data;
RT_ASSERT(dc != RT_NULL);
RT_ASSERT(hz_file_font != RT_NULL);
/* get English font */
efont = rtgui_font_refer("asc", hz_file_font->font_size);
if (efont == RT_NULL) efont = rtgui_font_default(); /* use system default font */
while (length > 0)
{
len = 0;
while (((rt_uint8_t)*(text + len)) < 0x80 && *(text + len)) len ++;
/* draw text with English font */
if (len > 0)
{
rtgui_font_draw(efont, dc, text, len, rect);
text += len;
length -= len;
}
len = 0;
while (((rt_uint8_t)*(text + len)) >= 0x80) len ++;
if (len > 0)
{
_rtgui_hz_file_font_draw_text(hz_file_font, dc, text, len, rect);
text += len;
length -= len;
}
}
rtgui_font_derefer(efont);
}
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;