@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();
}
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) {
}
}
}