git.gag.com Git - debian/openrocket/blob - android/src/net/sf/openrocket/android/motor/BurnPlotFragment.java

   1 package net.sf.openrocket.android.motor;\r
   2 \r
   3 import java.util.ArrayList;\r
   4 import java.util.List;\r
   5 import java.util.Vector;\r
   6 \r
   7 import net.sf.openrocket.R;\r
   8 import android.app.Activity;\r
   9 import android.graphics.Color;\r
  10 import android.graphics.PointF;\r
  11 import android.os.Bundle;\r
  12 import android.support.v4.app.Fragment;\r
  13 import android.util.Log;\r
  14 import android.view.LayoutInflater;\r
  15 import android.view.MotionEvent;\r
  16 import android.view.ScaleGestureDetector;\r
  17 import android.view.View;\r
  18 import android.view.View.OnTouchListener;\r
  19 import android.view.ViewGroup;\r
  20 \r
  21 import com.androidplot.xy.BoundaryMode;\r
  22 import com.androidplot.xy.LineAndPointFormatter;\r
  23 import com.androidplot.xy.LineAndPointRenderer;\r
  24 import com.androidplot.xy.SimpleXYSeries;\r
  25 import com.androidplot.xy.XYPlot;\r
  26 import com.androidplot.xy.YValueMarker;\r
  27 \r
  28 public class BurnPlotFragment extends Fragment implements OnTouchListener {\r
  29 \r
  30         private final static String TAG = "BurnPlotFragment";\r
  31 \r
  32         private ExtendedThrustCurveMotor motor;\r
  33 \r
  34         private XYPlot mySimpleXYPlot;\r
  35         private SimpleXYSeries mySeries;\r
  36         private PointF minXY;\r
  37         private PointF maxXY;\r
  38 \r
  39         private float absMinX;\r
  40         private float absMaxX;\r
  41 \r
  42         private ScaleGestureDetector mScaleDetector;\r
  43         private float mScaleFactor = 1.f;\r
  44 \r
  45         @Override\r
  46         public void onCreate(Bundle savedInstanceState) {\r
  47                 Log.d(TAG,"onCreate");\r
  48                 super.onCreate(savedInstanceState);\r
  49         }\r
  50 \r
  51         @Override\r
  52         public View onCreateView(LayoutInflater inflater, ViewGroup container,\r
  53                         Bundle savedInstanceState) {\r
  54                 Log.d(TAG,"onCreateView");\r
  55                 View v = inflater.inflate(R.layout.motor_burn, container, false);\r
  56                 mySimpleXYPlot = (XYPlot) v.findViewById(R.id.xyplot);\r
  57                 mySimpleXYPlot.setOnTouchListener(this);\r
  58                 mScaleDetector = new ScaleGestureDetector(v.getContext(), new ScaleListener());\r
  59                 return v;\r
  60         }\r
  61 \r
  62         private static List<Double> fromArray( double[] arry ) {\r
  63                 List<Double> l = new ArrayList<Double>(arry.length);\r
  64                 for( double d: arry ) {\r
  65                         l.add(d);\r
  66                 }\r
  67                 return l;\r
  68         }\r
  69         void init( ExtendedThrustCurveMotor motor ) {\r
  70 \r
  71                 mySimpleXYPlot.setUserDomainOrigin(0);\r
  72                 mySimpleXYPlot.setUserRangeOrigin(0);\r
  73                 mySimpleXYPlot.setRangeLabel("impuse (n)");\r
  74                 mySimpleXYPlot.setDomainLabel("time (s)");\r
  75                 mySimpleXYPlot.addMarker(new YValueMarker(motor.getThrustCurveMotor().getAverageThrustEstimate(),"average" ));\r
  76                 mySimpleXYPlot.disableAllMarkup();\r
  77 \r
  78 \r
  79                 try {\r
  80                         mySeries = new SimpleXYSeries( \r
  81                                         fromArray(motor.getThrustCurveMotor().getTimePoints()),\r
  82                                         fromArray(motor.getThrustCurveMotor().getThrustPoints()),\r
  83                                         motor.getThrustCurveMotor().getDesignation());\r
  84                 } catch ( Exception ex ) {\r
  85 \r
  86                         Vector<Double> data = new Vector<Double>();\r
  87                         data.add(0.0);\r
  88                         data.add(0.0);\r
  89                         data.add(1.0);\r
  90                         data.add(1.0);\r
  91                         mySeries = new SimpleXYSeries(data, SimpleXYSeries.ArrayFormat.XY_VALS_INTERLEAVED,"no data");\r
  92                 }\r
  93 \r
  94                 mySimpleXYPlot.addSeries(mySeries, LineAndPointRenderer.class,\r
  95                                 new LineAndPointFormatter(Color.rgb(0, 255, 0), Color.rgb(200, 0, 0), null));\r
  96 \r
  97                 //Set of internal variables for keeping track of the boundaries\r
  98                 mySimpleXYPlot.calculateMinMaxVals();\r
  99 \r
 100                 mySimpleXYPlot.redraw();\r
 101 \r
 102                 minXY=new PointF(mySimpleXYPlot.getCalculatedMinX().floatValue(),mySimpleXYPlot.getCalculatedMinY().floatValue());\r
 103                 maxXY=new PointF(mySimpleXYPlot.getCalculatedMaxX().floatValue(),mySimpleXYPlot.getCalculatedMaxY().floatValue());\r
 104 \r
 105                 absMinX = minXY.x;\r
 106                 absMaxX = maxXY.x;\r
 107 \r
 108         }\r
 109 \r
 110         private float mPosX;\r
 111         private float mPosY;\r
 112 \r
 113         private float mLastTouchX;\r
 114         private float mLastTouchY;\r
 115 \r
 116         private int mActivePointerId = -1;\r
 117 \r
 118         @Override\r
 119         public boolean onTouch(View arg0, MotionEvent event) {\r
 120                 mScaleDetector.onTouchEvent(event);\r
 121 \r
 122                 final int action = event.getAction();\r
 123                 switch ( action & MotionEvent.ACTION_MASK ) {\r
 124                 case MotionEvent.ACTION_DOWN: {\r
 125                         final float x = event.getX();\r
 126                         final float y = event.getY();\r
 127 \r
 128                         mLastTouchX = x;\r
 129                         mLastTouchY = y;\r
 130 \r
 131                         mActivePointerId = event.getPointerId(0);\r
 132                         break;\r
 133                 }\r
 134 \r
 135                 case MotionEvent.ACTION_MOVE: {\r
 136                         final int pointerIndex = event.findPointerIndex(mActivePointerId);\r
 137                         final float x = event.getX(pointerIndex);\r
 138                         final float y = event.getY(pointerIndex);\r
 139 \r
 140                         if (!mScaleDetector.isInProgress()) {\r
 141                                 final float dx = x - mLastTouchX;\r
 142                                 final float dy = y - mLastTouchY;\r
 143 \r
 144                                 mPosX += dx;\r
 145                                 mPosY += dy;\r
 146                                 scroll(dx);\r
 147                                 // do scroll.\r
 148 \r
 149                         }\r
 150                         mLastTouchX = x;\r
 151                         mLastTouchY = y;\r
 152 \r
 153                         break;\r
 154                 }\r
 155 \r
 156                 case MotionEvent.ACTION_UP: {\r
 157                         mActivePointerId = -1;\r
 158                         break;\r
 159                 }\r
 160 \r
 161                 case MotionEvent.ACTION_CANCEL: {\r
 162                         mActivePointerId = -1;\r
 163                         break;\r
 164                 }\r
 165 \r
 166                 case MotionEvent.ACTION_POINTER_UP: {\r
 167                         final int pointerIndex = (action & MotionEvent.ACTION_POINTER_INDEX_MASK) >> MotionEvent.ACTION_POINTER_ID_SHIFT;\r
 168                         final int pointerId = event.getPointerId(pointerIndex);\r
 169                         if (pointerId == mActivePointerId) {\r
 170                                 // This was our active pointer going up.  choose a new active pointer and adjust accordingly.\r
 171                                 final int newPointerIndex = pointerIndex ==0 ? 1:0;\r
 172                                 mLastTouchX = event.getX(newPointerIndex);\r
 173                                 mLastTouchY = event.getY(newPointerIndex);\r
 174                                 mActivePointerId = event.getPointerId(newPointerIndex);\r
 175                         }\r
 176                         break;\r
 177                 }\r
 178                 }       \r
 179                 return true;\r
 180         }\r
 181 \r
 182         private void zoom(float scale) {\r
 183                 Log.d(TAG,"zoom by " + scale);\r
 184                 float domainSpan = absMaxX      - absMinX;\r
 185                 Log.d(TAG,"domainSpan = " + domainSpan);\r
 186                 float domainMidPoint = absMaxX          - domainSpan / 2.0f;\r
 187                 Log.d(TAG,"domainMidPoint = " + domainMidPoint);\r
 188                 float offset = domainSpan / scale;\r
 189                 Log.d(TAG,"offset " + offset);\r
 190                 minXY.x=domainMidPoint- offset;\r
 191                 Log.d(TAG,"min X " + minXY.x);\r
 192                 maxXY.x=domainMidPoint+offset;\r
 193                 Log.d(TAG,"max X " + maxXY.x);\r
 194                 checkBoundaries();\r
 195                 mySimpleXYPlot.setDomainBoundaries(minXY.x, maxXY.x, BoundaryMode.AUTO);\r
 196                 mySimpleXYPlot.redraw();\r
 197         }\r
 198 \r
 199         private void scroll(float pan) {\r
 200                 float domainSpan = maxXY.x      - minXY.x;\r
 201                 float step = domainSpan / mySimpleXYPlot.getWidth();\r
 202                 float offset = pan * step;\r
 203                 minXY.x+= offset;\r
 204                 maxXY.x+= offset;\r
 205                 checkBoundaries();\r
 206                 mySimpleXYPlot.setDomainBoundaries(minXY.x, maxXY.x, BoundaryMode.AUTO);\r
 207                 mySimpleXYPlot.redraw();\r
 208         }\r
 209 \r
 210         private void checkBoundaries() {\r
 211 \r
 212                 if ( minXY.x < absMinX) \r
 213                         minXY.x = absMinX;\r
 214                 //              else if ( minXY.x > maxNoError )\r
 215                 //                      minXY.x = maxNoError;\r
 216 \r
 217                 if ( maxXY.x > absMaxX)\r
 218                         maxXY.x = absMaxX;\r
 219                 //              else if ( maxXY.x < minNoError)\r
 220                 //                      maxXY.x = minNoError;\r
 221         }\r
 222         private class ScaleListener extends ScaleGestureDetector.SimpleOnScaleGestureListener {\r
 223                 @Override\r
 224                 public boolean onScale( ScaleGestureDetector detector ) {\r
 225                         mScaleFactor *= detector.getScaleFactor();\r
 226 \r
 227                         mScaleFactor = Math.max(1.0f, Math.min(mScaleFactor, 5.0f));\r
 228                         zoom(mScaleFactor);\r
 229                         return true;\r
 230                 }\r
 231         }\r
 232 }\r
 233 \r