/*
GanttProject is an opensource project management tool. License: GPL3
Copyright (C) 2010 Dmitry Barashev
This program 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.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package net.sourceforge.ganttproject.chart.mouse;
import java.awt.Graphics;
import java.awt.event.MouseEvent;
import java.util.Date;
import biz.ganttproject.core.time.TimeDuration;
import net.sourceforge.ganttproject.chart.mouse.MouseInteraction.TimelineFacade;
abstract class MouseInteractionBase {
protected Date myStartDate;
private final MouseInteraction.TimelineFacade myChartDateGrid;
protected MouseInteractionBase(Date startDate, MouseInteraction.TimelineFacade chartDateGrid) {
myStartDate = startDate;
myChartDateGrid = chartDateGrid;
}
protected TimeDuration getLengthDiff(MouseEvent event) {
Date dateUnderX = myChartDateGrid.getDateAt(event.getX());
TimeDuration result = myChartDateGrid.createTimeInterval(myChartDateGrid.getTimeUnitStack().getDefaultTimeUnit(),
myStartDate, dateUnderX);
return result;
}
protected TimelineFacade getChartDateGrid() {
return myChartDateGrid;
}
/**
* Method to show the visible cues of the interaction
*
* @param g
* is the graphics context
*/
public void paint(Graphics g) {
}
protected void setStartDate(Date date) {
myStartDate = date;
}
protected Date getStartDate() {
return myStartDate;
}
}