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