112 lines
2.6 KiB
C
112 lines
2.6 KiB
C
/*
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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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*
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* http://ugfx.org/license.html
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*/
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#include "../../gfx.h"
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#if GFX_USE_GDISP && GDISP_NEED_TEXT
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#include "mcufont/mcufont.h"
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#define FONT_FLAG_DYNAMIC 0x80 // Custom flag to indicate dynamically allocated font
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#define FONT_FLAG_UNLISTED 0x40 // Custom flag to indicate font is not currently listed
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static const struct mf_font_list_s *fontList;
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/**
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* Match a pattern against the font name.
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*/
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static gBool matchfont(const char *pattern, const char *name) {
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while(1) {
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switch (pattern[0]) {
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case '*':
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if (name[0] == 0)
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return pattern[1] == 0;
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if (pattern[1] == name[0])
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pattern++;
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else
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name++;
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break;
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case 0:
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return name[0] == 0;
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default:
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if (name[0] != pattern[0])
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return gFalse;
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pattern++;
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name++;
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break;
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}
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}
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}
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gFont gdispOpenFont(const char *name) {
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const struct mf_font_list_s *fp;
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if (!fontList)
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fontList = mf_get_font_list();
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// Try the long names first
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for(fp = fontList; fp; fp = fp->next) {
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if (matchfont(name, fp->font->full_name))
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return fp->font;
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}
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// Try the short names if no long names match
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for(fp = fontList; fp; fp = fp->next) {
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if (matchfont(name, fp->font->short_name))
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return fp->font;
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}
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/* Return default builtin font.. better than nothing. */
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return mf_get_font_list()->font;
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}
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void gdispCloseFont(gFont font) {
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if ((font->flags & (FONT_FLAG_DYNAMIC|FONT_FLAG_UNLISTED)) == (FONT_FLAG_DYNAMIC|FONT_FLAG_UNLISTED)) {
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/* Make sure that no-one can successfully use font after closing */
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((struct mf_font_s *)font)->render_character = 0;
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/* Release the allocated memory */
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gfxFree((void *)font);
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}
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}
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gFont gdispScaleFont(gFont font, uint8_t scale_x, uint8_t scale_y)
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{
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struct mf_scaledfont_s *newfont;
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if (!(newfont = gfxAlloc(sizeof(struct mf_scaledfont_s))))
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return 0;
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mf_scale_font(newfont, font, scale_x, scale_y);
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((struct mf_font_s *)newfont)->flags |= FONT_FLAG_DYNAMIC|FONT_FLAG_UNLISTED;
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return (gFont)newfont;
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}
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const char *gdispGetFontName(gFont font) {
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return font->short_name;
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}
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gBool gdispAddFont(gFont font) {
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struct mf_font_list_s *hdr;
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if ((font->flags & (FONT_FLAG_DYNAMIC|FONT_FLAG_UNLISTED)) != (FONT_FLAG_DYNAMIC|FONT_FLAG_UNLISTED))
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return gFalse;
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if (!(hdr = gfxAlloc(sizeof(struct mf_font_list_s))))
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return gFalse;
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if (!fontList)
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fontList = mf_get_font_list();
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hdr->font = (const struct mf_font_s *)font;
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hdr->next = fontList;
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((struct mf_font_s *)font)->flags &= ~FONT_FLAG_UNLISTED;
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fontList = hdr;
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return gTrue;
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}
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#endif /* GFX_USE_GDISP && GDISP_NEED_TEXT */
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