android/source/src/java/org/libreoffice/canvas/AdjustLengthLine.java

   1 package org.libreoffice.canvas;
   2
   3 import android.graphics.Canvas;
   4 import android.graphics.Color;
   5 import android.graphics.Paint;
   6 import android.graphics.PointF;
   7 import android.graphics.RectF;
   8
   9 import org.json.JSONException;
  10 import org.json.JSONObject;
  11 import org.libreoffice.LOEvent;
  12 import org.libreoffice.LOKitShell;
  13 import org.libreoffice.LibreOfficeMainActivity;
  14 import org.libreoffice.overlay.CalcHeadersView;
  15 import org.mozilla.gecko.gfx.ImmutableViewportMetrics;
  16
  17 import static org.libreoffice.SearchController.addProperty;
  18 import static org.libreoffice.UnitConverter.pixelToTwip;
  19 import static org.libreoffice.UnitConverter.twipsToHMM;
  20
  21 public class AdjustLengthLine extends CommonCanvasElement {
  22
  23     private static final float STROKE_WIDTH = 4f;
  24     private static final float TOUCH_VICINITY_RADIUS = 24f;
  25
  26     private LibreOfficeMainActivity mContext;
  27     private CalcHeadersView mCalcHeadersView;
  28     private boolean mIsRow;
  29     private PointF mScreenPosition;
  30     private float mWidth;
  31     private float mHeight;
  32     private Paint mPaint;
  33     private PointF mStartScreenPosition;
  34     private int mIndex;
  35
  36     public AdjustLengthLine(LibreOfficeMainActivity context, CalcHeadersView view, boolean isRow, float width, float height) {
  37         super();
  38         mContext = context;
  39         mCalcHeadersView = view;
  40         mIsRow = isRow;
  41         mWidth = width;
  42         mHeight = height;
  43         mPaint = new Paint();
  44         mPaint.setColor(Color.BLACK);
  45         mPaint.setStrokeWidth(STROKE_WIDTH);
  46     }
  47
  48     @Override
  49     public boolean onHitTest(float x, float y) {
  50         if (mIsRow) {
  51             return mScreenPosition.y - TOUCH_VICINITY_RADIUS < y &&
  52                     y < mScreenPosition.y + TOUCH_VICINITY_RADIUS;
  53         } else {
  54             return mScreenPosition.x - TOUCH_VICINITY_RADIUS < x &&
  55                     x < mScreenPosition.x + TOUCH_VICINITY_RADIUS;
  56         }
  57     }
  58
  59     @Override
  60     public void onDraw(Canvas canvas) {
  61         if (mIsRow) {
  62             canvas.drawLine(0f, mScreenPosition.y, mWidth, mScreenPosition.y, mPaint);
  63         } else {
  64             canvas.drawLine(mScreenPosition.x, 0f, mScreenPosition.x, mHeight, mPaint);
  65         }
  66     }
  67
  68     public void dragStart(PointF point) {
  69     }
  70
  71     public void dragging(PointF point) {
  72         mScreenPosition = point;
  73     }
  74
  75     public void dragEnd(PointF point) {
  76         ImmutableViewportMetrics viewportMetrics = mContext.getLayerClient().getViewportMetrics();
  77         float zoom = viewportMetrics.zoomFactor;
  78
  79         PointF documentDistance = new PointF(pixelToTwip((point.x-mStartScreenPosition.x)/zoom, LOKitShell.getDpi(mContext)),
  80                 pixelToTwip((point.y-mStartScreenPosition.y)/zoom, LOKitShell.getDpi(mContext)));
  81
  82         try {
  83             JSONObject rootJson = new JSONObject();
  84             if (mIsRow) {
  85                 addProperty(rootJson, "Row", "long", String.valueOf(mIndex));
  86                 addProperty(rootJson, "RowHeight", "unsigned short", String.valueOf(Math.round(documentDistance.y > 0 ? twipsToHMM(documentDistance.y) : 0)));
  87                 LOKitShell.sendEvent(new LOEvent(LOEvent.UNO_COMMAND, ".uno:RowHeight", rootJson.toString()));
  88             } else {
  89                 addProperty(rootJson, "Column", "long", String.valueOf(mIndex));
  90                 addProperty(rootJson, "ColumnWidth", "unsigned short", String.valueOf(documentDistance.x > 0 ? twipsToHMM(documentDistance.x) : 0));
  91                 LOKitShell.sendEvent(new LOEvent(LOEvent.UNO_COMMAND, ".uno:ColumnWidth", rootJson.toString()));
  92             }
  93         } catch (JSONException e) {
  94             e.printStackTrace();
  95         }
  96     }
  97
  98     public void setScreenRect(RectF position) {
  99         mScreenPosition = new PointF(position.right, position.bottom);
 100         mStartScreenPosition = new PointF(position.left, position.top);
 101         mIndex = 1 + mCalcHeadersView.getIndexFromPointOfTouch(new PointF(position.centerX(), position.centerY()));
 102     }
 103 }