ugfx/src/gdisp/fonts.c

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/*
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* This file is subject to the terms of the GFX License. If a copy of
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* the license was not distributed with this file, you can obtain one at:
*
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* http://ugfx.org/license.html
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*/
/**
* @file src/gdisp/fonts.c
* @brief GDISP Font Handling.
*
* @addtogroup GDISP
* @{
*/
#include "gfx.h"
#if GFX_USE_GDISP && GDISP_NEED_TEXT
#include "mcufont.h"
/* Custom flag to indicate dynamically allocated font */
#define FONT_FLAG_DYNAMIC 0x80
/**
* Match a pattern against the font name.
*/
static bool_t matchfont(const char *pattern, const char *name) {
while(1) {
switch (pattern[0]) {
case '*':
if (name[0] == 0)
return pattern[1] == 0;
if (pattern[1] == name[0])
pattern++;
else
name++;
break;
case 0:
return name[0] == 0;
default:
if (name[0] != pattern[0])
return FALSE;
pattern++;
name++;
break;
}
}
}
font_t gdispOpenFont(const char *name) {
const struct mf_font_list_s *fp;
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// Try the long names first
for(fp = mf_get_font_list(); fp; fp = fp->next) {
if (matchfont(name, fp->font->full_name))
return fp->font;
}
// Try the short names if no long names match
for(fp = mf_get_font_list(); fp; fp = fp->next) {
if (matchfont(name, fp->font->short_name))
return fp->font;
}
/* Return default font.. better than nothing. */
return mf_get_font_list()->font;
}
void gdispCloseFont(font_t font) {
if (font->flags & FONT_FLAG_DYNAMIC)
{
struct mf_font_s *dfont = (struct mf_font_s *)font;
/* Make sure that no-one can successfully use font after closing */
dfont->render_character = 0;
/* Release the allocated memory */
gfxFree(dfont);
}
}
font_t gdispScaleFont(font_t font, uint8_t scale_x, uint8_t scale_y)
{
struct mf_scaledfont_s *newfont = gfxAlloc(sizeof(struct mf_scaledfont_s));
mf_scale_font(newfont, font, scale_x, scale_y);
return (font_t)newfont;
}
const char *gdispGetFontName(font_t font) {
return font->short_name;
}
#endif /* GFX_USE_GDISP && GDISP_NEED_TEXT */
/** @} */