Diff: Font/FastFont/FastFont.cpp

Revision:

8:a460cabc85ac

Parent:

7:303850a4b30c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Font/FastFont/FastFont.cpp	Mon Apr 11 16:54:02 2016 +0000
@@ -0,0 +1,86 @@
+
+#include "FastFont.h"
+
+FastFont::FastFont(uint8_t* fastFont)
+    : _font(fastFont)
+{
+    _totalBytesPerGlyph = dataBytesPerGlyph() + 1;
+    _bytesPerRow = dataBytesPerGlyph() / height();
+}
+
+/***************************************
+* Implementation of the Font interface
+***************************************/
+uint8_t FastFont::firstAscii()
+{
+    return _font[FAST_FONT_FIRST_ASCII];
+}
+
+uint8_t FastFont::lastAscii()
+{
+    return _font[FAST_FONT_LAST_ASCII];
+}
+
+/**
+* The unzoomed width of the character. Includes a following pixel
+**/
+ uint8_t  FastFont::widthOf(char c)
+{
+    if(c < _font[FAST_FONT_FIRST_ASCII] || c > _font[FAST_FONT_LAST_ASCII]) {
+        return 0;
+    }
+
+    return _font[FAST_FONT_DATA + ((c - _font[FAST_FONT_FIRST_ASCII]) * _totalBytesPerGlyph)];
+}
+
+uint8_t FastFont::zoomedWidthOf(char c) {
+    return (widthOf(c) * _zoomX);
+}
+
+/**
+* The unzoomed height of a character
+**/
+ uint8_t  FastFont::height()
+{
+    return _font[FAST_FONT_HEIGHT];
+}
+
+ uint8_t FastFont::zoomedHeight()
+{
+    return _zoomY * _font[FAST_FONT_HEIGHT];
+}
+
+ bool FastFont::isProportional()
+{
+    return _font[FAST_FONT_PROPORTIONAL];
+}
+
+
+/***************************************
+* Custom methods for this class
+***************************************/
+
+uint8_t FastFont::totalBytesPerGlyph()
+{
+    return _totalBytesPerGlyph;
+}
+
+
+uint8_t FastFont::dataBytesPerGlyph()
+{
+    return _font[FAST_FONT_DATA_BYTES_PER_GLYPH];
+}
+
+uint8_t FastFont::bytesPerRow()
+{
+    return _bytesPerRow;
+}
+
+uint8_t* FastFont::glyph(char c)
+{
+    if(c < _font[FAST_FONT_FIRST_ASCII] || c > _font[FAST_FONT_LAST_ASCII]) {
+        return 0;
+    }
+    
+    return _font + FAST_FONT_DATA + ((c - _font[FAST_FONT_FIRST_ASCII]) * _totalBytesPerGlyph) + 1;
+}