diff options
Diffstat (limited to 'font.c')
| -rw-r--r-- | font.c | 60 |
1 files changed, 59 insertions, 1 deletions
@@ -6,7 +6,7 @@ * * BiDi support by Osama Alrawab <alrawab@hotmail.com> @2008 Tripoli-Libya. * - * $Id: font.c 2.5 2010/09/19 11:49:19 kls Exp $ + * $Id: font.c 2.6 2011/02/20 14:15:38 kls Exp $ */ #include "font.h" @@ -118,6 +118,7 @@ public: virtual int Width(const char *s) const; virtual int Height(void) const { return height; } virtual void DrawText(cBitmap *Bitmap, int x, int y, const char *s, tColor ColorFg, tColor ColorBg, int Width) const; + virtual void DrawText(cPixmap *Pixmap, int x, int y, const char *s, tColor ColorFg, tColor ColorBg, int Width) const; }; cFreetypeFont::cFreetypeFont(const char *Name, int CharHeight, int CharWidth) @@ -329,6 +330,62 @@ void cFreetypeFont::DrawText(cBitmap *Bitmap, int x, int y, const char *s, tColo } } +void cFreetypeFont::DrawText(cPixmap *Pixmap, int x, int y, const char *s, tColor ColorFg, tColor ColorBg, int Width) const +{ + if (s && height) { // checking height to make sure we actually have a valid font +#ifdef BIDI + cString bs = Bidi(s); + s = bs; +#endif + bool AntiAliased = Setup.AntiAlias; + bool TransparentBackground = ColorBg == clrTransparent; + uint prevSym = 0; + while (*s) { + int sl = Utf8CharLen(s); + uint sym = Utf8CharGet(s, sl); + s += sl; + cGlyph *g = Glyph(sym, AntiAliased); + if (!g) + continue; + int kerning = Kerning(g, prevSym); + prevSym = sym; + uchar *buffer = g->Bitmap(); + int symWidth = g->Width(); + if (Width && x + symWidth + g->Left() + kerning - 1 > Width) + break; // we don't draw partial characters + if (x + symWidth + g->Left() + kerning > 0) { + for (int row = 0; row < g->Rows(); row++) { + for (int pitch = 0; pitch < g->Pitch(); pitch++) { + uchar bt = *(buffer + (row * g->Pitch() + pitch)); + if (AntiAliased) { + if (bt > 0x00) { + tColor bg; + if (bt == 0xFF || TransparentBackground) + bg = ColorFg; + else { + bg = AlphaBlend(ColorFg, ColorBg, bt); + bt = ALPHA_OPAQUE; + } + Pixmap->DrawPixel(cPoint(x + pitch + g->Left() + kerning, y + row + (height - Bottom() - g->Top())), bg, bt); + } + } + else { //monochrome rendering + for (int col = 0; col < 8 && col + pitch * 8 <= symWidth; col++) { + if (bt & 0x80) + Pixmap->DrawPixel(cPoint(x + col + pitch * 8 + g->Left() + kerning, y + row + (height - Bottom() - g->Top())), ColorFg); + bt <<= 1; + } + } + } + } + } + x += g->AdvanceX() + kerning; + if (x > Pixmap->DrawPort().Width() - 1) + break; + } + } +} + // --- cDummyFont ------------------------------------------------------------ // A dummy font, in case there are no fonts installed: @@ -339,6 +396,7 @@ public: virtual int Width(const char *s) const { return 50; } virtual int Height(void) const { return 20; } virtual void DrawText(cBitmap *Bitmap, int x, int y, const char *s, tColor ColorFg, tColor ColorBg, int Width) const {} + virtual void DrawText(cPixmap *Pixmap, int x, int y, const char *s, tColor ColorFg, tColor ColorBg, int Width) const {}; }; // --- cFont ----------------------------------------------------------------- |