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