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package org.libreoffice;
import android.graphics.Bitmap;
import android.util.Log;
import org.libreoffice.kit.Document;
import org.libreoffice.kit.LibreOfficeKit;
import org.libreoffice.kit.Office;
import org.mozilla.gecko.gfx.BufferedCairoImage;
import org.mozilla.gecko.gfx.CairoImage;
import org.mozilla.gecko.gfx.LayerController;
import org.mozilla.gecko.gfx.SubTile;
import java.nio.ByteBuffer;
public class LOKitTileProvider implements TileProvider {
private static final String LOGTAG = LOKitShell.class.getSimpleName();
private final LayerController mLayerController;
public static int TILE_SIZE = 256;
private final double mTileWidth;
private final double mTileHeight;
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, String input) {
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());
mDocument = mOffice.documentLoad(input);
if(mDocument == null) {
Log.e(LOGTAG, "Error: " + mOffice.getError());
} else {
Log.i(LOGTAG, "Document parts: " + mDocument.getParts());
if (mDocument.getParts() >= 1) {
mDocument.setPart(1);
}
mTileWidth = pixelToTwip(TILE_SIZE, mDPI);
mTileHeight = pixelToTwip(TILE_SIZE, mDPI);
}
}
@Override
public int getPageWidth() {
return (int) twipToPixel(mDocument.getDocumentWidth(), mDPI);
}
@Override
public int getPageHeight() {
return (int) twipToPixel(mDocument.getDocumentHeight(), mDPI);
}
@Override
public boolean isReady() {
return mDocument != null;
}
public SubTile createTile(int x, int y) {
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) pixelToTwip(x, mDPI), (int) pixelToTwip(y, mDPI), (int)mTileWidth, (int)mTileHeight);
bitmap.copyPixelsFromBuffer(buffer);
CairoImage image = new BufferedCairoImage(bitmap);
SubTile tile = new SubTile(image, x, y);
tile.beginTransaction();
return tile;
}
}
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