@Override
 public void onOffsetsChanged(
     float xOffset,
     float yOffset,
     float xOffsetStep,
     float yOffsetStep,
     int xPixelOffset,
     int yPixelOffset) {
   super.onOffsetsChanged(
       xOffset, yOffset, xOffsetStep, yOffsetStep, xPixelOffset, yPixelOffset);
   int xStep = 1;
   int yStep = 1;
   if (xOffsetStep > 0) xStep = Math.round(1f / xOffsetStep) + 1;
   if (yOffsetStep > 0) yStep = Math.round(1f / yOffsetStep) + 1;
   if (xOffsetStep == 1 && xOffset == 0.5) xStep = 1;
   if (yOffsetStep == 1 && yOffset == 0.5) yStep = 1;
   if (yStep != this.ySteps || xStep != this.xSteps) this.replaceRequired = true;
   synchronized (this) {
     this.xSteps = xStep;
     this.ySteps = yStep;
     this.xPos = xOffset;
     this.yPos = yOffset;
     this.redrawRequired = true;
     updateSize();
   }
   redrawImage();
 }
예제 #2
0
    void doOffsetsChanged(boolean always) {
      if (mDestroyed) {
        return;
      }

      if (!always && !mOffsetsChanged) {
        return;
      }

      float xOffset;
      float yOffset;
      float xOffsetStep;
      float yOffsetStep;
      boolean sync;
      synchronized (mLock) {
        xOffset = mPendingXOffset;
        yOffset = mPendingYOffset;
        xOffsetStep = mPendingXOffsetStep;
        yOffsetStep = mPendingYOffsetStep;
        sync = mPendingSync;
        mPendingSync = false;
        mOffsetMessageEnqueued = false;
      }

      if (mSurfaceCreated) {
        if (mReportedVisible) {
          if (DEBUG) Log.v(TAG, "Offsets change in " + this + ": " + xOffset + "," + yOffset);
          final int availw = mIWallpaperEngine.mReqWidth - mCurWidth;
          final int xPixels = availw > 0 ? -(int) (availw * xOffset + .5f) : 0;
          final int availh = mIWallpaperEngine.mReqHeight - mCurHeight;
          final int yPixels = availh > 0 ? -(int) (availh * yOffset + .5f) : 0;
          onOffsetsChanged(xOffset, yOffset, xOffsetStep, yOffsetStep, xPixels, yPixels);
        } else {
          mOffsetsChanged = true;
        }
      }

      if (sync) {
        try {
          if (DEBUG) Log.v(TAG, "Reporting offsets change complete");
          mSession.wallpaperOffsetsComplete(mWindow.asBinder());
        } catch (RemoteException e) {
        }
      }
    }