Diff: RA8875.cpp

Revision:

101:e0aad446094a

Parent:

100:0b084475d5a9

Child:

103:7e0464ca6c5c

--- a/RA8875.cpp	Sat Dec 19 15:55:09 2015 +0000
+++ b/RA8875.cpp	Sun Jan 17 22:16:37 2016 +0000
@@ -803,6 +803,13 @@
 }
 
 
+
+// Questions to ponder -
+// - if we choose to wrap to the next line, because the character won't fit on the current line,
+//      should it erase the space to the width of the screen (in case there is leftover junk there)?
+// - it currently wraps from the bottom of the screen back to the top. I have pondered what
+//      it might take to scroll the screen - but haven't thought hard enough about it.
+//
 int RA8875::_external_putc(int c)
 {
     if (c) {
@@ -811,17 +818,23 @@
         } else if (c == '\n') {
             cursor_y += extFontHeight;
         } else {
-            int advance = character(cursor_x, cursor_y, c);     // advance tells us how many pixels we advanced
-            INFO("x,y,advance %d,%d,%d '%c", cursor_x, cursor_y, advance, c);
-            if (advance) {
-                cursor_x += advance;
-                if (cursor_x >= width()) {
+            uint8_t charWidth, charHeight;
+            const uint8_t * charRecord;
+            
+            charRecord = getCharMetrics(c, &charWidth, &charHeight);
+            //int advance = charwidth(c);
+            INFO("(%d,%d) ,charWidth: %d '%c", cursor_x, cursor_y, charWidth, c);
+            if (charRecord) {
+                //cursor_x += advance;
+                if (cursor_x + charWidth >= width()) {
                     cursor_x = 0;
-                    cursor_y += extFontHeight;
-                    if (cursor_y >= height()) {
-                        cursor_y = 0;               // @todo Should it scroll?
-                    }
+                    cursor_y += charHeight;
                 }
+                if (cursor_y + charHeight >= height()) {
+                    cursor_y = 0;               // @todo Should it scroll?
+                }
+                (void)character(cursor_x, cursor_y, c);
+                cursor_x += charWidth;
             }
         }
     }