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package org.libreoffice;
import android.graphics.Bitmap;
import android.graphics.RectF;
import android.util.DisplayMetrics;
import android.util.Log;
import org.mozilla.gecko.gfx.GeckoLayerClient;
import org.mozilla.gecko.gfx.ImmutableViewportMetrics;
import org.mozilla.gecko.gfx.LayerController;
import java.util.concurrent.LinkedBlockingQueue;
public class LOKitThread extends Thread {
private static final String LOGTAG = LOKitThread.class.getSimpleName();
private LinkedBlockingQueue<LOEvent> mEventQueue = new LinkedBlockingQueue<LOEvent>();
private LibreOfficeMainActivity mApplication;
private TileProvider mTileProvider;
private ImmutableViewportMetrics mViewportMetrics;
private GeckoLayerClient mLayerClient;
private LayerController mController;
public LOKitThread() {
TileProviderFactory.initialize();
}
private boolean draw() {
if (mTileProvider == null || mApplication == null) {
// called too early...
return false;
}
RectF rect = new RectF(0, 0, mTileProvider.getPageWidth(), mTileProvider.getPageHeight());
DisplayMetrics displayMetrics = LibreOfficeMainActivity.mAppContext.getResources().getDisplayMetrics();
mViewportMetrics = new ImmutableViewportMetrics(displayMetrics);
mViewportMetrics = mViewportMetrics.setPageRect(rect, rect);
GeckoLayerClient layerClient = mApplication.getLayerClient();
layerClient.beginDrawing();
layerClient.reevaluateTiles();
layerClient.endDrawing(mViewportMetrics);
return true;
}
/** Handle the geometry change + draw. */
private void redraw() {
if (mController == null || mTileProvider == null) {
// called too early...
return;
}
draw();
RectF rect = new RectF(0, 0, mTileProvider.getPageWidth(), mTileProvider.getPageHeight());
mController.setPageRect(rect, rect);
mController.setViewportMetrics(mController.getViewportMetrics());
mController.setForceRedraw();
}
/** Invalidate everything + handle the geometry change + draw. */
private void refresh() {
Bitmap bitmap = mTileProvider.thumbnail(1000);
if (bitmap != null) {
mApplication.getLayerController().getView().changeCheckerboardBitmap(bitmap, mTileProvider.getPageWidth(), mTileProvider.getPageHeight());
}
mLayerClient.clearAndResetlayers();
redraw();
}
private void changePart(int partIndex) {
LOKitShell.showProgressSpinner();
mTileProvider.changePart(partIndex);
refresh();
LOKitShell.hideProgressSpinner();
}
private boolean loadDocument(String filename) {
if (mApplication == null) {
mApplication = LibreOfficeMainActivity.mAppContext;
}
mController = mApplication.getLayerController();
mLayerClient = mApplication.getLayerClient();
mTileProvider = TileProviderFactory.create(mController, filename);
boolean isReady = mTileProvider.isReady();
if (isReady) {
mLayerClient.setTileProvider(mTileProvider);
LOKitShell.showProgressSpinner();
refresh();
LOKitShell.hideProgressSpinner();
}
return isReady;
}
public void closeDocument() {
if (mTileProvider != null) {
mTileProvider.close();
}
}
public void run() {
try {
while (true) {
processEvent(mEventQueue.take());
}
} catch (InterruptedException ex) {
}
}
private void processEvent(LOEvent event) {
Log.i(LOGTAG, "processEvent: " + event.getTypeString());
switch (event.mType) {
case LOEvent.LOAD:
loadDocument(event.getFilename());
break;
case LOEvent.CLOSE:
closeDocument();
break;
case LOEvent.VIEWPORT:
mViewportMetrics = event.getViewport();
draw();
break;
case LOEvent.DRAW:
draw();
break;
case LOEvent.SIZE_CHANGED:
redraw();
break;
case LOEvent.CHANGE_PART:
changePart(event.getPartIndex());
break;
}
}
public void queueEvent(LOEvent event) {
Log.i(LOGTAG, "Event: " + event.getTypeString());
mEventQueue.add(event);
}
public void clearQueue() {
mEventQueue.clear();
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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