Diff: main.cpp

Revision:

0:3279bf1609c1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon May 05 06:41:03 2014 +0000
@@ -0,0 +1,211 @@
+#include "mbed.h"
+#include "N5110.h"
+
+N5110 lcd(dp4,dp24,dp23,dp25,dp2,dp6,dp18);
+
+AnalogIn VRx(dp11);
+AnalogIn VRy(dp10);
+InterruptIn SW(dp9);
+
+int xmin=0,xmax=0;
+int ymin=0,ymax=0;
+
+Timer press;
+Ticker ticker;
+bool set=true;
+
+int first[2]={0,0};
+int second[2]={0,0};
+int point[2]={0,0};
+
+bool crosshair[4]={false};
+
+void setX()
+{   
+    if(first[0]<second[0])
+    {
+        xmin=first[0];
+        xmax=second[0];
+    }
+    else
+    {
+        xmin=second[0];
+        xmax=first[0];
+    }
+}
+
+void setY()
+{
+    
+    if(first[1]<second[1])
+    {
+        ymin=first[1];
+        ymax=second[1];
+    }
+    else
+    {
+        ymin=second[1];
+        ymax=first[1];
+    }
+}
+
+
+
+    
+void readX()
+{  
+    if(VRx<1.0/3.3)
+        point[0]--;
+    if(VRx>2.0/3.3)
+        point[0]++;
+        
+}
+void readY()
+{
+   if(VRy<1.0/3.3)
+        point[1]--;
+    if(VRy>2.0/3.3)
+        point[1]++;
+        
+}
+
+ 
+
+void displayCrosshair()
+{
+  int points[4]={point[0]-1,point[0]+1,point[1]-1,point[1]+1};
+  if(points[0]>0&&lcd.getPixel(points[0],point[1])==0)
+  {
+     lcd.setPixel(points[0],point[1]);
+     crosshair[0]=true;
+  }
+  if(points[1]<83&&lcd.getPixel(points[1],point[1])==0)
+  {
+    lcd.setPixel(points[1],point[1]);
+    crosshair[1]=true;
+  }
+  if(points[2]>0&&lcd.getPixel(point[0],points[2])==0)
+  {
+    lcd.setPixel(point[0],points[2]);
+    crosshair[2]=true;
+  }
+  if(points[3]<43&&lcd.getPixel(point[0],points[3])==0)
+  {
+    lcd.setPixel(point[0],points[3]);
+    crosshair[3]=true;
+  }      
+}
+
+void hideCrosshair()
+{
+    int points[4]={point[0]-1,point[0]+1,point[1]-1,point[1]+1};
+    if(points[0]>0&&crosshair[0])
+    {
+        lcd.clearPixel(points[0],point[1]);
+        crosshair[0]=false;
+    }
+    if(points[1]<83&&crosshair[1])
+    {
+        lcd.clearPixel(points[1],point[1]);
+        crosshair[1]=false;
+    }
+    if(points[2]>0&&crosshair[2])
+    {
+        lcd.clearPixel(point[0],points[2]);
+        crosshair[2]=false;
+    }
+    if(points[3]<43&&crosshair[3])
+    {
+        lcd.clearPixel(point[0],points[3]);
+        crosshair[3]=false;
+    }
+            
+}
+
+void displayPoint()
+{
+    hideCrosshair();
+    lcd.refresh();
+   
+    readX();
+    readY();
+    
+    displayCrosshair();
+    lcd.refresh();
+}     
+
+
+void paint()
+{
+    setX();
+    setY();  
+    
+    for(int i=xmin;i<=xmax;i++)
+    {
+        for(int j=ymin;j<ymax;j++)
+        {
+            lcd.setPixel(i,j);
+        }
+    }
+    lcd.refresh();           
+}
+
+
+void buttonPress()
+{
+    if(set)
+    {
+        if(press.read_ms()>200)
+        {
+            set=!set;
+            first[0]=point[0];
+            first[1]=point[1];
+            lcd.setPixel(first[0],first[1]);
+            lcd.refresh();
+            press.reset();
+        }
+    }
+    else if(!set)
+    {
+        if(press.read_ms()>200&&press.read_ms()<500)
+        {
+            lcd.clear();
+            point[0]=15;
+            point[1]=15;
+            displayPoint();
+            press.reset();
+            set=!set;
+            }
+     
+       else if(press.read_ms()>200)
+        {    second[0]=point[0];
+            second[1]=point[1];
+            lcd.setPixel(second[0],second[1]);
+            paint();
+            first[0]=0;
+            first[1]=0;
+            second[0]=0;
+            second[1]=0;
+            press.reset();
+            set=!set;
+         }   
+        
+        lcd.refresh();
+       
+        }
+     
+}
+
+int main() {
+    lcd.init();
+    lcd.setXYAddress(0,0);
+    point[0]=15;
+    point[1]=15;
+    press.start();
+    SW.mode(PullUp);
+    SW.rise(buttonPress);
+    ticker.attach(displayPoint,0.25);
+    while(1) {
+
+    }
+}