Diff: Doggy/xchar.cpp

Revision:

0:3d456b8ce449

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Doggy/xchar.cpp	Mon Jun 15 15:34:27 2015 +0000
@@ -0,0 +1,90 @@
+#include "doggy.h"
+
+XGlyph DogMLCD::GetGlyph( int code )
+{
+    if( code > 31 && code < 256 )
+        return XFont[code - 31];
+    return XFont[0];
+}
+
+void DogMLCD::XChar( int x, int y, int code, doggy_op raster )
+{
+    XChar( x, y, GetGlyph( code ) );
+}
+void DogMLCD::XChar( int x, int y, XGlyph f, doggy_op raster )
+{
+    const char* p = f.bmp;
+    RasterOp op = ((RasterOp[]){ &DogMLCD::Poke, &DogMLCD::Wipe, &DogMLCD::Inv })[raster];
+    int y1 = y + f.hei;
+    for( int w = 0 ; w < f.wid ; w++ )
+    {
+        for( int z = y, m = 1 ; z < y1 ; z++ )
+        {
+            if( m == 256 ) { m = 1; p++; }
+            if( *p & m )
+                (this->*op)( x, z );
+            m <<= 1;
+        }
+        p++;
+        x++;
+    }
+}
+int DogMLCD::XString( int x, int y, int i, doggy_op raster )
+{
+    char buf[32];
+    sprintf( buf, "%d", i );
+    return XString( x, y, buf, raster );
+}
+int DogMLCD::XString( int x, int y, float f, doggy_op raster )
+{
+    char buf[32];
+    sprintf( buf, "%f", f );
+    return XString( x, y, buf, raster );
+}
+int DogMLCD::XString( int x, int y, const char* s, doggy_op raster )
+{
+    int oldx = x;
+    int trc = 0, brc = 0, inter = XFont[0].hei;
+    while( *s )
+    {
+        if( *s == 13 )
+        {
+            x = oldx;
+            y += inter;
+        }
+        else if( *s > 31 )
+        {
+            XGlyph f = GetGlyph( *s );
+            
+            while( ( x > 0 ) && ( trc + f.tlc ) > 0 && ( brc + f.blc ) > 0 )
+            {
+                x--;
+                trc--;
+                brc--;
+            }
+            
+            if( x + f.wid > 128 ) // simplified form of [ x + f.wid - 1 > 127 ]
+            {
+                x = oldx;
+                y += inter;
+                if( *s != 32 ) // don't ouput begining space on new line
+                {
+                    XChar( x, y, f, raster );
+                    x += f.wid + 1;
+                 }
+            }
+            else
+            {
+                XChar( x, y, f, raster );
+                x += f.wid + 1;
+            }
+            if( *s != 32 ) // for space keep crening of previous char
+            {
+                trc = f.trc;
+                brc = f.brc;
+            }
+        }
+        s++;
+    }
+    return y;
+}