UGFontRenderer.cpp

00001 #include "UGFontRenderer.h"
00002 #include "Arial24x23.h"
00003 
00004 UGFontRenderer::UGFontRenderer() : FontRenderer() 
00005 {
00006 }
00007 
00008 void UGFontRenderer::putc(const char  c, GraphicsDisplay* display, Font* font)
00009 {
00010 
00011     UGFont* _font = (UGFont*) font;
00012     if(!_font->contains(c)) {
00013         return;
00014     }
00015     
00016     uint8_t cw = _font->zoomedWidthOf(c);
00017     uint8_t ch = _font->zoomedHeight();
00018 
00019     bool wrap = (_cx + cw) > _wx1 && !_clip;
00020     
00021     if(c == '\n' || wrap) {
00022         _cx = _wx0;
00023         _cy += ch;
00024     }
00025     
00026     if(cw == 0) {
00027         return;
00028     }
00029     
00030     // We have to do clipping/wrapping for now because the display doesn't do it for us
00031     if((_cx + cw) > _wx1) {
00032         // We've done any wrapping already, so if we get here the window must be smaller than the character
00033         return;
00034     }
00035     
00036     if((_cy + ch) > _wy1) {
00037         return;
00038     }
00039         
00040 
00041     uint8_t height = _font->height();
00042     uint8_t width = _font->widthOf(c);
00043     uint8_t zx = _font->zoomX();
00044     uint8_t zy = _font->zoomY();
00045     uint8_t bpc = _font->bytesPerCol();
00046     uint8_t row, col, v;
00047     uint8_t bits, mask;
00048 
00049     // We don't do clipping logic for chars - that's the job of the display
00050     // Just set a window into which to render the char and let the display ignore it if it doesn't fit
00051     display->window(_cx, _cy, cw, ch);
00052 
00053     uint8_t* glyphData = _font->getGlyphData(c);
00054 
00055     // construct the char into the buffer
00056     for (row=0; row < height; row++) {  //  vert line
00057         for (v=0; v < zy; v++) { // repeat horiz line for vertical zooming
00058             for (col=0; col < width; col++) {   //  horz line
00059 
00060                 bits =  glyphData[(bpc * col) + (row >> 3)];
00061 
00062                 mask = 1 << (row & 0x07);
00063 
00064                 if (bits & mask) {
00065                     display->window_pushpixel(_foreground, zx);
00066                 } else {
00067                     display->window_pushpixel(_background, zx);
00068                 }
00069             }
00070         } //for each zoomed vert
00071     }
00072     _cx += cw;
00073 }
00074 
00075 void UGFontRenderer::puts(const char*  c, GraphicsDisplay* display, Font* _font)
00076 {}