Beispiel #1
0
  private void buildShadow() {
    if (mShadowSize <= 0) return;

    if (mShadowPaint == null) {
      mShadowPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.DITHER_FLAG);
      mShadowPaint.setStyle(Paint.Style.FILL);
      mShadowPaint.setDither(true);
    }
    float startRatio = (float) mThumbRadius / (mThumbRadius + mShadowSize + mShadowOffset);
    mShadowPaint.setShader(
        new RadialGradient(
            0,
            0,
            mThumbRadius + mShadowSize,
            new int[] {COLOR_SHADOW_START, COLOR_SHADOW_START, COLOR_SHADOW_END},
            new float[] {0f, startRatio, 1f},
            Shader.TileMode.CLAMP));

    if (mShadowPath == null) {
      mShadowPath = new Path();
      mShadowPath.setFillType(Path.FillType.EVEN_ODD);
    } else mShadowPath.reset();
    float radius = mThumbRadius + mShadowSize;
    mTempRect.set(-radius, -radius, radius, radius);
    mShadowPath.addOval(mTempRect, Path.Direction.CW);
    radius = mThumbRadius - 1;
    mTempRect.set(-radius, -radius - mShadowOffset, radius, radius - mShadowOffset);
    mShadowPath.addOval(mTempRect, Path.Direction.CW);
  }
  private void drawEllipse(byte[] packetData) {
    try {
      int x1 = xCoordinateMap(myConvertByteArrToInt_bigend(packetData, 4));
      int y1 = yCoordinateMap(myConvertByteArrToInt_bigend(packetData, 8));
      int x2 = xCoordinateMap(myConvertByteArrToInt_bigend(packetData, 12));
      int y2 = yCoordinateMap(myConvertByteArrToInt_bigend(packetData, 16));
      int penWidthNum = myConvertByteArrToInt_bigend(packetData, 20);
      int penColorNum = myConvertByteArrToInt_bigend(packetData, 24);
      int isFill = myConvertByteArrToInt_bigend(packetData, 28);

      Paint paint = getAPaint();
      paint.setStrokeWidth(penWidthMap.get(penWidthNum));
      paint.setColor(penColorMap.get(penColorNum));
      if (isFill == 0) {
        paint.setStyle(Style.STROKE);
      } else {
        paint.setStyle(Style.FILL_AND_STROKE);
      }

      Path path = new Path();
      path.addOval(new RectF(x1, y1, x2, y2), Direction.CW);

      HistoryItem item = new HistoryItem(HistoryItem.TYPE_PATH, paint, path, null, null);
      undoPathList.add(item);

      mCacheCanvas.drawPath(path, paint);

      handler.sendEmptyMessage(CustomDrawViewCH_INVALIDATE);
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
Beispiel #3
0
 private void drawOvalBackground(Canvas canvas, Rect bitmapRect) {
   final float left = Edge.LEFT.getCoordinate();
   final float top = Edge.TOP.getCoordinate();
   final float right = Edge.RIGHT.getCoordinate();
   final float bottom = Edge.BOTTOM.getCoordinate();
   RectF r = new RectF(left, top, right, bottom);
   Path path = new Path();
   path.addRect(
       bitmapRect.left, bitmapRect.top, bitmapRect.right, bitmapRect.bottom, Path.Direction.CW);
   path.addOval(r, Path.Direction.CCW);
   path.setFillType(Path.FillType.EVEN_ODD);
   canvas.drawPath(path, mBackgroundPaint);
 }
  @Override
  protected void onDraw(Canvas canvas) {
    float ringWidth = textHeight + 4;
    int height = getMeasuredHeight();
    int width = getMeasuredWidth();

    int px = width / 2;
    int py = height / 2;
    Point center = new Point(px, py);

    int radius = Math.min(px, py) - 2;

    RectF boundingBox =
        new RectF(center.x - radius, center.y - radius, center.x + radius, center.y + radius);

    RectF innerBoundingBox =
        new RectF(
            center.x - radius + ringWidth,
            center.y - radius + ringWidth,
            center.x + radius - ringWidth,
            center.y + radius - ringWidth);

    float innerRadius = innerBoundingBox.height() / 2;
    RadialGradient borderGradient =
        new RadialGradient(
            px, py, radius, borderGradientColors, borderGradientPositions, TileMode.CLAMP);

    Paint pgb = new Paint();
    pgb.setShader(borderGradient);

    Path outerRingPath = new Path();
    outerRingPath.addOval(boundingBox, Direction.CW);

    canvas.drawPath(outerRingPath, pgb);
    LinearGradient skyShader =
        new LinearGradient(
            center.x,
            innerBoundingBox.top,
            center.x,
            innerBoundingBox.bottom,
            skyHorizonColorFrom,
            skyHorizonColorTo,
            TileMode.CLAMP);

    Paint skyPaint = new Paint();
    skyPaint.setShader(skyShader);

    LinearGradient groundShader =
        new LinearGradient(
            center.x,
            innerBoundingBox.top,
            center.x,
            innerBoundingBox.bottom,
            groundHorizonColorFrom,
            groundHorizonColorTo,
            TileMode.CLAMP);

    Paint groundPaint = new Paint();
    groundPaint.setShader(groundShader);
    float tiltDegree = pitch;
    while (tiltDegree > 90 || tiltDegree < -90) {
      if (tiltDegree > 90) tiltDegree = -90 + (tiltDegree - 90);
      if (tiltDegree < -90) tiltDegree = 90 - (tiltDegree + 90);
    }

    float rollDegree = roll;
    while (rollDegree > 180 || rollDegree < -180) {
      if (rollDegree > 180) rollDegree = -180 + (rollDegree - 180);
      if (rollDegree < -180) rollDegree = 180 - (rollDegree + 180);
    }
    Path skyPath = new Path();
    skyPath.addArc(innerBoundingBox, -rollDegree, (180 + (2 * rollDegree)));
    canvas.rotate(-tiltDegree, px, py);
    canvas.drawOval(innerBoundingBox, groundPaint);
    canvas.drawPath(skyPath, skyPaint);
    canvas.drawPath(skyPath, markerPaint);
    int markWidth = radius / 3;
    int startX = center.x - markWidth;
    int endX = center.x + markWidth;

    Log.d("PAARV ", "Roll " + String.valueOf(rollDegree));
    Log.d("PAARV ", "Pitch " + String.valueOf(tiltDegree));

    double h = innerRadius * Math.cos(Math.toRadians(90 - tiltDegree));
    double justTiltX = center.x - h;

    float pxPerDegree = (innerBoundingBox.height() / 2) / 45f;
    for (int i = 90; i >= -90; i -= 10) {
      double ypos = justTiltX + i * pxPerDegree;

      if ((ypos < (innerBoundingBox.top + textHeight))
          || (ypos > innerBoundingBox.bottom - textHeight)) continue;

      canvas.drawLine(startX, (float) ypos, endX, (float) ypos, markerPaint);
      int displayPos = (int) (tiltDegree - i);
      String displayString = String.valueOf(displayPos);
      float stringSizeWidth = textPaint.measureText(displayString);
      canvas.drawText(
          displayString, (int) (center.x - stringSizeWidth / 2), (int) (ypos) + 1, textPaint);
    }
    markerPaint.setStrokeWidth(2);
    canvas.drawLine(
        center.x - radius / 2,
        (float) justTiltX,
        center.x + radius / 2,
        (float) justTiltX,
        markerPaint);
    markerPaint.setStrokeWidth(1);

    Path rollArrow = new Path();
    rollArrow.moveTo(center.x - 3, (int) innerBoundingBox.top + 14);
    rollArrow.lineTo(center.x, (int) innerBoundingBox.top + 10);
    rollArrow.moveTo(center.x + 3, innerBoundingBox.top + 14);
    rollArrow.lineTo(center.x, innerBoundingBox.top + 10);
    canvas.drawPath(rollArrow, markerPaint);
    String rollText = String.valueOf(rollDegree);
    double rollTextWidth = textPaint.measureText(rollText);
    canvas.drawText(
        rollText,
        (float) (center.x - rollTextWidth / 2),
        innerBoundingBox.top + textHeight + 2,
        textPaint);
    canvas.restore();

    canvas.save();
    canvas.rotate(180, center.x, center.y);
    for (int i = -180; i < 180; i += 10) {
      if (i % 30 == 0) {
        String rollString = String.valueOf(i * -1);
        float rollStringWidth = textPaint.measureText(rollString);
        PointF rollStringCenter =
            new PointF(center.x - rollStringWidth / 2, innerBoundingBox.top + 1 + textHeight);
        canvas.drawText(rollString, rollStringCenter.x, rollStringCenter.y, textPaint);
      } else {
        canvas.drawLine(
            center.x,
            (int) innerBoundingBox.top,
            center.x,
            (int) innerBoundingBox.top + 5,
            markerPaint);
      }

      canvas.rotate(10, center.x, center.y);
    }
    canvas.restore();
    canvas.save();
    canvas.rotate(-1 * (bearing), px, py);

    double increment = 22.5;

    for (double i = 0; i < 360; i += increment) {
      CompassDirection cd = CompassDirection.values()[(int) (i / 22.5)];
      String headString = cd.toString();

      float headStringWidth = textPaint.measureText(headString);
      PointF headStringCenter =
          new PointF(center.x - headStringWidth / 2, boundingBox.top + 1 + textHeight);

      if (i % increment == 0)
        canvas.drawText(headString, headStringCenter.x, headStringCenter.y, textPaint);
      else
        canvas.drawLine(
            center.x, (int) boundingBox.top, center.x, (int) boundingBox.top + 3, markerPaint);

      canvas.rotate((int) increment, center.x, center.y);
    }
    canvas.restore();
    RadialGradient glassShader =
        new RadialGradient(
            px, py, (int) innerRadius, glassGradientColors, glassGradientPositions, TileMode.CLAMP);
    Paint glassPaint = new Paint();
    glassPaint.setShader(glassShader);

    canvas.drawOval(innerBoundingBox, glassPaint);
    canvas.drawOval(boundingBox, circlePaint);

    circlePaint.setStrokeWidth(2);
    canvas.drawOval(innerBoundingBox, circlePaint);

    canvas.restore();
  }