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package org.libreoffice;
import android.graphics.Bitmap;
import android.graphics.Rect;
import android.graphics.RectF;
import android.util.Log;
import org.mozilla.gecko.gfx.FloatSize;
import org.mozilla.gecko.gfx.GeckoLayerClient;
import org.mozilla.gecko.gfx.ImmutableViewportMetrics;
import org.mozilla.gecko.gfx.SubTile;
import org.mozilla.gecko.gfx.ViewportMetrics;
import java.util.ArrayList;
import java.util.concurrent.LinkedBlockingQueue;
public class LOKitThread extends Thread {
private static final String LOGTAG = LOKitThread.class.getSimpleName();
private static final int TILE_SIZE = 256;
public LinkedBlockingQueue<LOEvent> mEventQueue = new LinkedBlockingQueue<LOEvent>();
private LibreOfficeMainActivity mApplication;
private TileProvider mTileProvider;
private ViewportMetrics mViewportMetrics;
private String mInputFile;
private Rect mOldRect;
private boolean mCheckboardImageSet = false;
LOKitThread(String inputFile) {
mInputFile = inputFile;
}
RectF normlizeRect(ImmutableViewportMetrics metrics) {
RectF rect = metrics.getViewport();
float zoomFactor = metrics.zoomFactor;
return new RectF(rect.left / zoomFactor, rect.top / zoomFactor, rect.right / zoomFactor, rect.bottom / zoomFactor);
}
Rect roundToTileSize(RectF input, int tileSize) {
int minX = (Math.round(input.left) / tileSize) * tileSize;
int minY = (Math.round(input.top) / tileSize) * tileSize;
int maxX = ((Math.round(input.right) / tileSize) + 1) * tileSize;
int maxY = ((Math.round(input.bottom) / tileSize) + 1) * tileSize;
return new Rect(minX, minY, maxX, maxY);
}
Rect inflate(Rect rect, int inflateSize) {
Rect newRect = new Rect(rect);
newRect.left -= inflateSize;
newRect.left = newRect.left < 0 ? 0 : newRect.left;
newRect.top -= inflateSize;
newRect.top = newRect.top < 0 ? 0 : newRect.top;
newRect.right += inflateSize;
newRect.bottom += inflateSize;
return newRect;
}
private boolean draw() throws InterruptedException {
Log.i(LOGTAG, "tilerender draw");
int pageWidth = mTileProvider.getPageWidth();
int pageHeight = mTileProvider.getPageHeight();
mViewportMetrics = new ViewportMetrics();
FloatSize size = new FloatSize(pageWidth, pageHeight);
mViewportMetrics.setPageSize(size, size);
GeckoLayerClient layerClient = mApplication.getLayerClient();
layerClient.beginDrawing(mViewportMetrics);
ImmutableViewportMetrics metrics = mApplication.getLayerController().getViewportMetrics();
RectF viewport = normlizeRect(metrics);
Rect rect = inflate(roundToTileSize(viewport, TILE_SIZE), TILE_SIZE);
mOldRect = rect;
Log.i(LOGTAG, "tilerender rect: " + rect);
long start = System.currentTimeMillis();
ArrayList<SubTile> removeTiles = new ArrayList<SubTile>();
for (SubTile tile : layerClient.getTiles()) {
Rect tileRect = new Rect(tile.x, tile.y, tile.x + TILE_SIZE, tile.y + TILE_SIZE);
if (!Rect.intersects(rect, tileRect)) {
Log.i(LOGTAG, "tilerender delete " + tileRect);
removeTiles.add(tile);
}
}
Log.i(LOGTAG, "TileRendering Remove: " + (System.currentTimeMillis() - start));
layerClient.getTiles().removeAll(removeTiles);
Log.i(LOGTAG, "TileRendering Clear: " + (System.currentTimeMillis() - start));
for (int y = rect.top; y < rect.bottom; y += TILE_SIZE) {
for (int x = rect.left; x < rect.right; x += TILE_SIZE) {
if (x > pageWidth) {
continue;
}
if (y > pageHeight) {
continue;
}
boolean contains = false;
for (SubTile tile : layerClient.getTiles()) {
if (tile.x == x && tile.y == y) {
contains = true;
}
}
if (!contains) {
SubTile tile = mTileProvider.createTile(x, y);
layerClient.addTile(tile);
}
}
}
Log.i(LOGTAG, "TileRendering Add: " + (System.currentTimeMillis() - start));
layerClient.endDrawing();
Log.i(LOGTAG, "tilerender end draw");
return true;
}
private void changePart(int partIndex) throws InterruptedException {
mTileProvider.changePart(partIndex);
GeckoLayerClient layerClient = mApplication.getLayerClient();
layerClient.getTiles().clear();
LOKitShell.sendEvent(LOEvent.draw(new Rect()));
}
private boolean initialize() {
mApplication = LibreOfficeMainActivity.mAppContext;
mTileProvider = new LOKitTileProvider(mApplication.getLayerController(), mInputFile);
boolean isReady = mTileProvider.isReady();
if (isReady)
{
if (!mCheckboardImageSet) {
Log.i(LOGTAG, "Generate thumbnail!");
Bitmap bitmap = mTileProvider.thumbnail();
Log.i(LOGTAG, "Done generate thumbnail!");
if (bitmap != null) {
Log.i(LOGTAG, "Setting checkboard image!");
mApplication.getLayerController().getView().changeCheckerboardBitmap(bitmap);
Log.i(LOGTAG, "Done setting checkboard image!!");
mCheckboardImageSet = true;
}
}
}
return isReady;
}
public void run() {
if (initialize()) {
try {
boolean drawn = false;
while (true) {
processEvent(mEventQueue.take());
}
} catch (InterruptedException ex) {
}
}
}
private void processEvent(LOEvent event) throws InterruptedException {
switch (event.mType) {
case LOEvent.VIEWPORT:
mViewportMetrics = event.getViewport();
draw();
break;
case LOEvent.DRAW:
draw();
break;
case LOEvent.SIZE_CHANGED:
break;
case LOEvent.CHANGE_PART:
changePart(event.getPartIndex());
break;
}
}
public void queueEvent(LOEvent event) {
Log.i(LOGTAG, "Event: " + event.getTypeString());
mEventQueue.add(event);
}
}
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