DiffHighlight.java example

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openflexo-master
/*
 * (c) Copyright 2010-2011 AgileBirds
 *
 * This file is part of OpenFlexo.
 *
 * OpenFlexo is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * OpenFlexo is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with OpenFlexo. If not, see <http://www.gnu.org/licenses/>.
 *
 */
package org.openflexo.swing.diff;

import java.awt.Color;

import org.openflexo.diff.ComputeDiff.AdditionChange;
import org.openflexo.diff.ComputeDiff.DiffChange;
import org.openflexo.diff.ComputeDiff.ModificationChange;
import org.openflexo.diff.ComputeDiff.RemovalChange;
import org.openflexo.jedit.LinesHighlight;

public class DiffHighlight extends LinesHighlight {

	private Color ADDITION_SELECTED_COLOR;
	private Color ADDITION_UNSELECTED_COLOR;
	private Color ADDITION_SELECTED_BORDER_COLOR;
	private Color ADDITION_UNSELECTED_BORDER_COLOR;

	private Color REMOVAL_SELECTED_COLOR;
	private Color REMOVAL_UNSELECTED_COLOR;
	private Color REMOVAL_SELECTED_BORDER_COLOR;
	private Color REMOVAL_UNSELECTED_BORDER_COLOR;

	private Color MODIFICATION_SELECTED_COLOR;
	private Color MODIFICATION_UNSELECTED_COLOR;
	private Color MODIFICATION_SELECTED_BORDER_COLOR;
	private Color MODIFICATION_UNSELECTED_BORDER_COLOR;

	private DiffTextArea diffTA;

	private Color selectedBg;
	private Color unselectedBg;
	private Color selectedFg;
	private Color unselectedFg;

	public DiffHighlight(DiffChange change, DiffTextArea diffTA) {
		super();
		this.diffTA = diffTA;
		setColors();
		if (change instanceof ModificationChange) {
			selectedBg = MODIFICATION_SELECTED_COLOR;
			unselectedBg = MODIFICATION_UNSELECTED_COLOR;
			selectedFg = MODIFICATION_SELECTED_BORDER_COLOR;
			unselectedFg = MODIFICATION_UNSELECTED_BORDER_COLOR;
		} else if (change instanceof RemovalChange) {
			selectedBg = REMOVAL_SELECTED_COLOR;
			unselectedBg = REMOVAL_UNSELECTED_COLOR;
			selectedFg = REMOVAL_SELECTED_BORDER_COLOR;
			unselectedFg = REMOVAL_UNSELECTED_BORDER_COLOR;
		} else if (change instanceof AdditionChange) {
			selectedBg = ADDITION_SELECTED_COLOR;
			unselectedBg = ADDITION_UNSELECTED_COLOR;
			selectedFg = ADDITION_SELECTED_BORDER_COLOR;
			unselectedFg = ADDITION_UNSELECTED_BORDER_COLOR;
		}
		deselect();
	}

	private void setColors() {
		ADDITION_SELECTED_COLOR = diffTA.isLeftOriented() ? new Color(255, 190, 182) : new Color(181, 213, 255);
		ADDITION_UNSELECTED_COLOR = diffTA.isLeftOriented() ? new Color(255, 214, 214) : new Color(230, 255, 255);
		ADDITION_SELECTED_BORDER_COLOR = diffTA.isLeftOriented() ? Color.RED : Color.BLUE;
		ADDITION_UNSELECTED_BORDER_COLOR = ADDITION_SELECTED_COLOR;

		REMOVAL_SELECTED_COLOR = diffTA.isLeftOriented() ? new Color(181, 213, 255) : new Color(255, 190, 182);
		REMOVAL_UNSELECTED_COLOR = diffTA.isLeftOriented() ? new Color(230, 255, 255) : new Color(255, 214, 214);
		REMOVAL_SELECTED_BORDER_COLOR = diffTA.isLeftOriented() ? Color.BLUE : Color.RED;
		REMOVAL_UNSELECTED_BORDER_COLOR = REMOVAL_SELECTED_COLOR;

		MODIFICATION_SELECTED_COLOR = new Color(255, 248, 150);
		MODIFICATION_UNSELECTED_COLOR = new Color(254, 254, 224);
		MODIFICATION_SELECTED_BORDER_COLOR = Color.BLACK;
		MODIFICATION_UNSELECTED_BORDER_COLOR = MODIFICATION_SELECTED_COLOR;

	}

	public void select() {
		setBgColor(selectedBg);
		setFgColor(selectedFg);
	}

	public void deselect() {
		setBgColor(unselectedBg);
		setFgColor(unselectedFg);
	}

}