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add none-fixed font support. 

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@961 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong@gmail.com 2010-09-26 14:30:42 +00:00
parent 03072ba689
commit 74a97349d2
8 changed files with 141 additions and 86 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
components/rtgui/SConscript
View File

@ -20,6 +20,7 @@ common/image.c
common/image_xpm.c
common/image_hdc.c
common/font.c
common/font_bmp.c
common/font_hz_file.c
common/font_hz_bmp.c
common/asc12font.c

2
components/rtgui/common/asc12font.c
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@ -211,6 +211,8 @@ const rt_uint8_t asc12_font[] = {
const struct rtgui_font_bitmap asc12 =
{
asc12_font, /* bmp */
RT_NULL, /* each character width, NULL for fixed font */
RT_NULL, /* offset for each character */
6, /* width */
12, /* height */
0, /* first char */

2
components/rtgui/common/asc16font.c
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@ -276,6 +276,8 @@ const unsigned char asc16_font[] = {
struct rtgui_font_bitmap asc16 =
{
(const rt_uint8_t*)asc16_font, /* bmp */
RT_NULL, /* each character width, NULL for fixed font */
RT_NULL, /* offset for each character */
8, /* width */
16, /* height */
0, /* first char */

72
components/rtgui/common/font.c
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@ -156,75 +156,3 @@ void rtgui_font_get_metrics(struct rtgui_font* font, const char* text, rtgui_rec
rt_memset(rect, 0, sizeof(rtgui_rect_t));
}
}
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,
RT_NULL,
rtgui_bitmap_font_draw_text,
rtgui_bitmap_font_get_metrics
};
void rtgui_bitmap_font_draw_char(struct rtgui_font_bitmap* font, struct rtgui_dc* dc, const char ch,
rtgui_rect_t* rect)
{
const rt_uint8_t* font_ptr;
rt_uint16_t x, y, h;
register rt_base_t i, j, k, word_bytes;
/* check first and last char */
if (ch < font->first_char || ch > font->last_char) return;
x = rect->x1;
y = rect->y1;
word_bytes = (((font->width - 1) / 8) + 1);
font_ptr = font->bmp + (ch - font->first_char) * word_bytes * font->height;
h = (font->height + y > rect->y2) ? rect->y2 - rect->y1 : font->height;
for (i = 0; i < h; i++)
{
for (j = 0; j < word_bytes; j++)
{
for (k = 0; k < 8; k++)
{
if (((font_ptr[i * word_bytes + j] >> (7 - k)) & 0x01) != 0)
{
/* draw a pixel */
rtgui_dc_draw_point(dc, k + 8 * j + x, i + y);
}
}
}
}
}
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);
RT_ASSERT(bmp_font != RT_NULL);
while (len-- && rect->x1 < rect->x2)
{
rtgui_bitmap_font_draw_char(bmp_font, dc, *text, rect);
/* move x to next character */
rect->x1 += bmp_font->width;
text ++;
}
}
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);
RT_ASSERT(bmp_font != RT_NULL);
/* 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;
}

118
components/rtgui/common/font_bmp.c Normal file
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@ -0,0 +1,118 @@
/*
* File : font.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006 - 2010, 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
* 2010-09-15 Bernard first version
*/
#include <rtgui/font.h>
#include <rtgui/dc.h>
/* bitmap font private data */
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);
const struct rtgui_font_engine bmp_font_engine =
{
RT_NULL,
RT_NULL,
rtgui_bitmap_font_draw_text,
rtgui_bitmap_font_get_metrics
};
void rtgui_bitmap_font_draw_char(struct rtgui_font_bitmap* font, struct rtgui_dc* dc, const char ch,
rtgui_rect_t* rect)
{
const rt_uint8_t* font_ptr;
rt_uint16_t x, y, h;
register rt_base_t i, j, k, word_bytes;
/* check first and last char */
if (ch < font->first_char || ch > font->last_char) return;
x = rect->x1;
y = rect->y1;
/* get width */
if (font->char_width == RT_NULL)
{
word_bytes = (((font->width - 1) / 8) + 1);
font_ptr = font->bmp + (ch - font->first_char) * word_bytes * font->height;
}
else
{
word_bytes = ((font->char_width[ch - font->first_char] - 1)/8) + 1;
font_ptr = font->bmp + font->offset[ch - font->first_char];
}
h = (font->height + y > rect->y2) ? rect->y2 - rect->y1 : font->height;
for (i = 0; i < h; i++)
{
for (j = 0; j < word_bytes; j++)
{
for (k = 0; k < 8; k++)
{
if (((font_ptr[i * word_bytes + j] >> (7 - k)) & 0x01) != 0)
{
/* draw a pixel */
rtgui_dc_draw_point(dc, k + 8 * j + x, i + y);
}
}
}
}
}
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);
RT_ASSERT(bmp_font != RT_NULL);
while (len-- && 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 ++;
}
}
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);
RT_ASSERT(bmp_font != RT_NULL);
if (bmp_font->char_width != NULL)
{
rt_uint32_t index;
/* set metrics rect */
rect->x1 = rect->y1 = 0;rect->x2 = 0;
rect->y2 = bmp_font->height;
/* get width for each character */
while (*text)
{
rect->x2 += bmp_font->char_width[*text - bmp_font->first_char];
text ++;
}
}
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;
}
}

2
components/rtgui/common/hz12font.c
View File

@ -12275,6 +12275,8 @@ const unsigned char hz12_font[] = {
const struct rtgui_font_bitmap hz12 =
{
hz12_font, /* bmp */
RT_NULL, /* each character width, NULL for fixed font */
RT_NULL, /* offset for each character */
12, /* width */
12, /* height */
0, /* first char */

4
components/rtgui/common/hz16font.c
View File

@ -16733,6 +16733,8 @@ const unsigned char hz16_font[] = {
const struct rtgui_font_bitmap hz16 =
{
hz16_font, /* bmp */
RT_NULL, /* each character width, NULL for fixed font */
RT_NULL, /* offset for each character */
16, /* width */
16, /* height */
0, /* first char */
@ -16746,7 +16748,7 @@ struct rtgui_font rtgui_font_hz16 =
16, /* height */
1, /* refer count */
&hz_bmp_font_engine,/* font engine */
(void *)&hz16, /* font private data */
(void *)&hz16, /* font private data */
};
/* size = 267616 bytes */

14
components/rtgui/include/rtgui/font.h
View File

@ -35,19 +35,19 @@ struct rtgui_font_engine
/*
* bitmap font engine
*/
/* bitmap font private data */
struct rtgui_font_bitmap
{
/* bitmap data */
const rt_uint8_t* bmp;
const rt_uint8_t* bmp; /* bitmap font data */
const rt_uint8_t* char_width; /* each character width, NULL for fixed font */
const rt_uint32_t* offset; /* offset for each character */
rt_uint16_t width;
rt_uint16_t height;
rt_uint16_t width; /* font width */
rt_uint16_t height; /* font height */
rt_uint8_t first_char;
rt_uint8_t last_char;
};
extern struct rtgui_font_engine bmp_font_engine;
extern const struct rtgui_font_engine bmp_font_engine;
#include <rtgui/tree.h>
SPLAY_HEAD(cache_tree, hz_cache);
@ -87,7 +87,7 @@ struct rtgui_font
rt_uint32_t refer_count;
/* font engine */
struct rtgui_font_engine* engine;
const struct rtgui_font_engine* engine;
/* font private data */
void* data;