Diff: UI/LCD/Bargraph.cpp

Revision:

0:826c6171fc1b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/UI/LCD/Bargraph.cpp	Wed Jun 20 14:57:48 2012 +0000
@@ -0,0 +1,63 @@
+#include "Bargraph.h"
+
+#define WIDTH 8
+#define HEIGHT 9
+
+SerialGraphicLCD *Bargraph::lcd = 0;
+
+Bargraph::Bargraph(int x, int y, int size, char name):
+    _x(x), _y(y), _x2(x+WIDTH), _y2(y+size-1), _s(size), _n(name), _last(0)
+{
+}
+
+Bargraph::Bargraph(int x, int y, int size, int width, char name):
+    _x(x), _y(y), _x2(x+width-1), _y2(y+size-1), _s(size), _w(width), _n(name), _last(0)
+{
+}
+
+void Bargraph::init() 
+{
+    if (lcd) {
+        if (_n != ' ') {
+            lcd->posXY(_x, _y2+2); // horizontal center
+            lcd->printf("%c", _n);
+        }
+        lcd->rect(_x, _y, _x2, _y2, true);
+        int value = _last;
+        _last = 0;
+        update(value);
+    }
+}
+
+void Bargraph::calibrate(float min, float max)
+{
+    _min = min;
+    _max = max;
+}
+
+void Bargraph::update(float value)
+{
+    int ivalue;
+
+    ivalue = (int) ((value - _min) * (_s-1)/(_max - _min));
+
+    update(ivalue);
+
+    return;
+}
+
+void Bargraph::update(int value)
+{
+    if (lcd) {
+        if (value >= 0 && value < _s) {
+            int newY = _y2-value;
+            
+            for (int y=_y+1; y < _y2; y++) {
+                lcd->line(_x+1, y, _x2-1, y, (y > newY));
+                wait_ms(5);
+            }
+        }
+        _last = value;
+    }
+}
+