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