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package org.libreoffice;
import android.graphics.Bitmap;
import android.util.Log;
import org.mozilla.gecko.gfx.BufferedCairoImage;
import org.mozilla.gecko.gfx.CairoImage;
import org.mozilla.gecko.gfx.LayerController;
import java.nio.ByteBuffer;
import java.util.Iterator;
import org.libreoffice.kit.LibreOfficeKit;
import org.libreoffice.kit.Office;
import org.libreoffice.kit.Document;
import org.mozilla.gecko.gfx.SubTile;
public class LOKitTileProvider implements TileProvider {
private final LayerController mLayerController;
public static int TILE_SIZE = 256;
public final Office mOffice;
public final Document mDocument;
private double mDPI;
private double twipToPixel(double input, double dpi) {
return input / 1440.0 * dpi;
}
private double pixelToTwip(double input, double dpi) {
return (input / dpi) * 1440.0;
}
public LOKitTileProvider(LayerController layerController) {
mLayerController = layerController;
mDPI = (double) LOKitShell.getDpi();
LibreOfficeKit.putenv("SAL_LOG=+WARN+INFO-INFO.legacy.osl-INFO.i18nlangtag");
LibreOfficeKit.init(LibreOfficeMainActivity.mAppContext);
mOffice = new Office(LibreOfficeKit.getLibreOfficeKitHandle());
String input = "/assets/test1.odt";
mDocument = mOffice.documentLoad(input);
}
@Override
public int getPageWidth() {
return (int) twipToPixel(mDocument.getDocumentWidth(), mDPI);
}
@Override
public int getPageHeight() {
return (int) twipToPixel(mDocument.getDocumentHeight(), mDPI);
}
public TileIterator getTileIterator() {
return new LoKitTileIterator();
}
public class LoKitTileIterator implements TileIterator, Iterator<SubTile> {
private final double mTileWidth;
private final double mTileHeight;
private double mPositionWidth = 0;
private double mPositionHeight = 0;
private int mX = 0;
private int mY = 0;
private double mPageWidth;
private double mPageHeight;
public LoKitTileIterator() {
mTileWidth = pixelToTwip(TILE_SIZE, mDPI);
mTileHeight = pixelToTwip(TILE_SIZE, mDPI);
mPageWidth = mDocument.getDocumentWidth();
mPageHeight = mDocument.getDocumentHeight();
}
@Override
public boolean hasNext() {
return mPositionHeight <= mPageHeight;
}
@Override
public SubTile next() {
ByteBuffer buffer = ByteBuffer.allocateDirect(TILE_SIZE * TILE_SIZE * 4);
Bitmap bitmap = Bitmap.createBitmap(TILE_SIZE, TILE_SIZE, Bitmap.Config.ARGB_8888);
mDocument.paintTile(buffer, TILE_SIZE, TILE_SIZE,
(int) Math.round(mPositionWidth), (int) Math.round(mPositionHeight), (int) Math.round(mTileWidth + pixelToTwip(1, mDPI)), (int) Math.round(mTileHeight+ pixelToTwip(1, mDPI)));
bitmap.copyPixelsFromBuffer(buffer);
CairoImage image = new BufferedCairoImage(bitmap);
SubTile tile = new SubTile(image, mX, mY);
tile.beginTransaction();
mPositionWidth += mTileWidth;
mX += TILE_SIZE;
if (mPositionWidth > mPageWidth) {
mPositionHeight += mTileHeight;
mY += TILE_SIZE;
mPositionWidth = 0;
mX = 0;
}
return tile;
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
@Override
public Iterator<SubTile> iterator() {
return this;
}
}
}
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