Diff: RadarDemo/Radar.cpp

Revision:

2:8db224cc1fcb

Parent:

1:5e49b46de1b0

diff -r 5e49b46de1b0 -r 8db224cc1fcb RadarDemo/Radar.cpp
--- a/RadarDemo/Radar.cpp	Fri Nov 04 17:10:50 2016 +0000
+++ b/RadarDemo/Radar.cpp	Fri Nov 04 23:07:04 2016 +0000
@@ -252,6 +252,57 @@
     return _display;
 }
 
+void Radar::DrawRangeButtons(uint16_t raSize)
+{
+    const uint16_t signSize = 5;
+    uint16_t centerX;
+    uint16_t centerY;
+
+    // Increase buton on right top
+    if(_rangeNumber < MAX_RANGE_INDEX) {
+        centerX = window.x2-raSize/2;
+        centerY = raSize/2;
+        
+        _display->DrawRectangle(window.x2-raSize, window.y1, window.x2, raSize);
+        _display->DrawLine(centerX-signSize, centerY, centerX+signSize, centerY);
+    }
+
+    // Decrease button on right bottom
+    if(_rangeNumber > 0) {
+        centerX = window.x2-raSize/2;
+        centerY = window.y2-raSize/2;
+        
+        _display->DrawRectangle(window.x2-raSize, window.y2-raSize, window.x2, window.y2);
+        _display->DrawLine(centerX-signSize, centerY, centerX+signSize, centerY);
+        _display->DrawLine(centerX, centerY-signSize, centerX, centerY+signSize);
+    }
+}
+
+
+void Radar::SetRange(uint8_t rangeNumber)
+{
+    if (rangeNumber <= MAX_RANGE_INDEX) {
+        _rangeNumber = rangeNumber;
+
+        int localRange = (window.y2 - window.y1) / 2;
+        _scaleRatio = localRange / GetRange();
+    }
+}
+
+
+bool Radar::ChangeRange(int change)
+{
+    if (change > 0 && _rangeNumber < MAX_RANGE_INDEX) {
+        SetRange( _rangeNumber + 1);
+        return true;
+    }
+    if (change < 0 && _rangeNumber > 0) {
+        SetRange( _rangeNumber - 1);
+        return true;
+    }
+    return false;
+}
+
 
 int Radar::_centerX;
 int Radar::_centerY;