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package org.libreoffice.canvas;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.RectF;
/**
* Bitmap handle canvas element is used to show a handle on the screen.
* The handle visual comes from the bitmap, which must be provided in time
* of construction.
*/
public abstract class BitmapHandle extends CommonCanvasElement {
public final RectF mDocumentPosition;
protected final Bitmap mBitmap;
protected final RectF mScreenPosition;
public BitmapHandle(Bitmap bitmap) {
mBitmap = bitmap;
mScreenPosition = new RectF(0, 0, mBitmap.getWidth(), mBitmap.getHeight());
mDocumentPosition = new RectF();
}
/**
* Return a bitmap for a drawable id.
*/
protected static Bitmap getBitmapForDrawable(Context context, int drawableId) {
BitmapFactory.Options options = new BitmapFactory.Options();
return BitmapFactory.decodeResource(context.getResources(), drawableId, options);
}
/**
* Draw the bitmap handle to the canvas.
* @param canvas - the canvas
*/
@Override
public void onDraw(Canvas canvas) {
canvas.drawBitmap(mBitmap, mScreenPosition.left, mScreenPosition.top, null);
}
/**
* Test if the bitmap has been hit.
* @param x - x coordinate
* @param y - y coordinate
* @return
*/
@Override
public boolean onHitTest(float x, float y) {
return mScreenPosition.contains(x, y);
}
/**
* Change the position of the handle.
* @param x - x coordinate
* @param y - y coordinate
*/
public void reposition(float x, float y) {
mScreenPosition.offsetTo(x, y);
}
}
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