Revision 20:ba8addc061ea, committed 2015-04-23

Comitter:

eencae

Date:

Thu Apr 23 18:57:52 2015 +0000

Parent:

19:1af393359298

Commit message:

1) Replaced literal values in library with WIDTH, HEIGHT, BANKS etc.; 2) User now needs to manually call refresh() after drawing lines/circles/rects. Was previously in drawLine() and so sent the entire buffer to display after every line - very slow.

Changed in this revision

diff -r 1af393359298 -r ba8addc061ea N5110.cpp
--- a/N5110.cpp	Wed Apr 22 12:41:45 2015 +0000
+++ b/N5110.cpp	Thu Apr 23 18:57:52 2015 +0000
@@ -179,6 +179,7 @@
     if (x>=0 && x<WIDTH && y>=0 && y<HEIGHT) {  // check within range
         // return relevant bank and mask required bit
         return (int) buffer[x][y/8] & (1 << y%8);
+        // note this does not necessarily return 1 - a non-zero number represents a pixel
     } else {
         return 0;
     }
@@ -220,11 +221,11 @@
 // function to print 5x7 font
 void N5110::printChar(char c,int x,int y)
 {
-    if (y>=0 && y<6) {  // check if printing in range of y banks
+    if (y>=0 && y<BANKS) {  // check if printing in range of y banks
 
         for (int i = 0; i < 5 ; i++ ) {
             int pixel_x = x+i;
-            if (pixel_x > 83)  // ensure pixel isn't outside the buffer size (0 - 83)
+            if (pixel_x > WIDTH-1)  // ensure pixel isn't outside the buffer size (0 - 83)
                 break;
             buffer[pixel_x][y] = font5x7[(c - 32)*5 + i];
             // array is offset by 32 relative to ASCII, each character is 5 pixels wide
@@ -237,7 +238,7 @@
 // function to print string at specified position
 void N5110::printString(const char * str,int x,int y)
 {
-    if (y>=0 && y<6) {  // check if printing in range of y banks
+    if (y>=0 && y<BANKS) {  // check if printing in range of y banks
 
         int n = 0 ; // counter for number of characters in string
         // loop through string and print character
@@ -247,7 +248,7 @@
             // text and pixels can be displayed at the same time
             for (int i = 0; i < 5 ; i++ ) {
                 int pixel_x = x+i+n*6;
-                if (pixel_x > 83) // ensure pixel isn't outside the buffer size (0 - 83)
+                if (pixel_x > WIDTH-1) // ensure pixel isn't outside the buffer size (0 - 83)
                     break;
                 buffer[pixel_x][y] = font5x7[(*str - 32)*5 + i];
             }
@@ -337,7 +338,6 @@
         }
     }
 
-    refresh();
 }
 
 void N5110::drawLine(int x0,int y0,int x1,int y1,int type)
@@ -386,7 +386,6 @@
         }
     }
 
-    refresh();
 }
 
 void N5110::drawRect(int x0,int y0,int width,int height,int fill)

diff -r 1af393359298 -r ba8addc061ea N5110.h
--- a/N5110.h	Wed Apr 22 12:41:45 2015 +0000
+++ b/N5110.h	Thu Apr 23 18:57:52 2015 +0000
@@ -127,6 +127,7 @@
             // x0,y0,x1,y1,type 0-white,1-black,2-dotted
             lcd.drawLine(0,0,x,HEIGHT,2);
         }
+        lcd.refresh();   // need to refresh screen after drawing lines
 
         wait(5.0);
         lcd.clear();
@@ -135,6 +136,7 @@
         lcd.drawCircle(WIDTH/2,HEIGHT/2,20,1);  // x,y,radius,black fill
         lcd.drawCircle(WIDTH/2,HEIGHT/2,10,2);  // x,y,radius,white fill
         lcd.drawCircle(WIDTH/2,HEIGHT/2,30,0);  // x,y,radius,transparent with outline
+        lcd.refresh();   // need to refresh screen after drawing circles
 
         wait(5.0);
         lcd.clear();
@@ -144,8 +146,10 @@
         lcd.drawRect(10,10,50,30,1);  // filled black rectangle
         lcd.drawRect(15,15,20,10,2);  // filled white rectange (no outline)
         lcd.drawRect(2,2,70,40,0);    // transparent, just outline
+        lcd.refresh();   // need to refresh screen after drawing rects
 
-         wait(5.0);
+
+        wait(5.0);
         lcd.clear();
 
     }