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package org.libreoffice;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Rect;
import android.util.JsonWriter;
import org.mozilla.gecko.gfx.ViewportMetrics;
import java.io.IOException;
import java.io.StringWriter;
import java.nio.ByteBuffer;
import java.util.Random;
import java.util.concurrent.ConcurrentLinkedQueue;
public class LOKitThread extends Thread {
private static final String LOGTAG = "GeckoThread";
private static final int TILE_SIZE = 256;
public ConcurrentLinkedQueue<LOEvent> gEvents = new ConcurrentLinkedQueue<LOEvent>();
private ViewportMetrics mViewportMetrics;
private Random rand = new Random();
LOKitThread() {
}
private boolean draw() throws InterruptedException {
final LibreOfficeMainActivity application = LibreOfficeMainActivity.mAppContext;
Bitmap originalBitmap = application.getLayerClient().getLayerController().getDrawable("dummy_page");
String metadata;
if (mViewportMetrics == null) {
metadata = createJson(0, 0, originalBitmap.getWidth(), originalBitmap.getHeight(), originalBitmap.getWidth(), originalBitmap.getHeight(), 0, 0, 1.0);
} else {
metadata = createJson(mViewportMetrics);
}
Rect bufferRect = application.getLayerClient().beginDrawing(originalBitmap.getWidth(), originalBitmap.getHeight(), 256, 256, metadata);
if (bufferRect == null) {
return false;
}
int x = 0;
int y = 0;
for (Integer i = 1; i <= 9; i++) {
String imageName = "d" + i;
Bitmap bitmap = application.getLayerClient().getLayerController().getDrawable(imageName);
application.getLayerClient().addTile(bitmap, x, y);
x += TILE_SIZE;
if (x > originalBitmap.getWidth()) {
x = 0;
y += TILE_SIZE;
}
}
application.getLayerClient().endDrawing(0, 0, originalBitmap.getWidth(), originalBitmap.getHeight());
application.runOnUiThread(new Runnable() {
@Override
public void run() {
application.getLayerClient().handleMessage("Viewport:UpdateLater", null);
}
});
return true;
}
private String createJson(ViewportMetrics viewportMetrics) {
return createJson(
(int) viewportMetrics.getOrigin().x,
(int) viewportMetrics.getOrigin().y,
(int) viewportMetrics.getSize().width,
(int) viewportMetrics.getSize().height,
(int) viewportMetrics.getPageSize().width,
(int) viewportMetrics.getPageSize().height,
(int) viewportMetrics.getViewportOffset().x,
(int) viewportMetrics.getViewportOffset().y,
viewportMetrics.getZoomFactor());
}
private String createJson(int x, int y, int width, int height, int pageWidth, int pageHeight, int offsetX, int offsetY, double zoom) {
try {
StringWriter stringWriter = new StringWriter();
JsonWriter writer = new JsonWriter(stringWriter);
writer.beginObject();
writer.name("x").value(x);
writer.name("y").value(y);
writer.name("width").value(width);
writer.name("height").value(height);
writer.name("pageWidth").value(pageWidth);
writer.name("pageHeight").value(pageHeight);
writer.name("offsetX").value(offsetX);
writer.name("offsetY").value(offsetY);
writer.name("zoom").value(zoom);
writer.name("backgroundColor").value("rgb(255,255,255)");
writer.endObject();
writer.close();
return stringWriter.toString();
} catch (IOException ex) {
}
return null;
}
private short convertTo16Bit(int color) {
int r = Color.red(color) >> 3, g = Color.green(color) >> 2, b = Color.blue(color) >> 3;
int c = ((r << 11) | (g << 5) | b);
// Swap endianness.
return (short) ((c >> 8) | ((c & 0xff) << 8));
}
private Bitmap convert(Bitmap bitmap, Bitmap.Config config) {
Bitmap convertedBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), config);
Canvas canvas = new Canvas(convertedBitmap);
Paint paint = new Paint();
paint.setColor(Color.BLACK);
canvas.drawBitmap(bitmap, 0, 0, paint);
return convertedBitmap;
}
public void run() {
try {
boolean drawn = false;
while (true) {
if (!gEvents.isEmpty()) {
processEvent(gEvents.poll());
} else {
if (!drawn) {
drawn = draw();
}
Thread.sleep(100L);
}
}
} catch (InterruptedException ex) {
}
}
private void processEvent(LOEvent event) throws InterruptedException {
switch (event.mType) {
case LOEvent.VIEWPORT:
mViewportMetrics = event.getViewport();
break;
case LOEvent.DRAW:
draw();
break;
case LOEvent.SIZE_CHANGED:
break;
}
}
}
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