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/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
package org.libreoffice.canvas;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PointF;
import android.graphics.RectF;
/**
* This class is responsible to draw and reposition the selection
* rectangle.
*/
public class GraphicSelectionCanvasElement {
private final Paint mGraphicSelectionPaint;
public RectF mRectangle = new RectF();
public RectF mScaledRectangle = new RectF();
private RectF mDrawRectangle = new RectF();
private DragType mType = DragType.NONE;
private PointF mStartDragPosition;
public GraphicSelectionCanvasElement(Paint graphicSelectionPaint) {
mGraphicSelectionPaint = graphicSelectionPaint;
}
public void reposition(RectF scaledRectangle) {
mScaledRectangle = scaledRectangle;
mDrawRectangle = scaledRectangle;
}
public boolean contains(float x, float y) {
return mScaledRectangle.contains(x, y);
}
public void draw(Canvas canvas) {
canvas.drawRect(mDrawRectangle, mGraphicSelectionPaint);
}
public void dragStart(DragType type, PointF position) {
mType = type;
mStartDragPosition = position;
}
public void dragging(PointF position) {
if (mType == DragType.MOVE) {
float deltaX = position.x - mStartDragPosition.x;
float deltaY = position.y - mStartDragPosition.y;
mDrawRectangle = new RectF(mScaledRectangle);
mDrawRectangle.offset(deltaX, deltaY);
} else if (mType == DragType.EXTEND) {
mDrawRectangle = new RectF(mScaledRectangle);
mDrawRectangle.union(position.x, position.y);
}
}
public void dragEnd() {
mType = DragType.NONE;
mDrawRectangle = mScaledRectangle;
}
public enum DragType {
NONE,
MOVE,
EXTEND
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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