/* * DatePane.java * * Created on 2007-6-19, 16:36:13 * * To change this template, choose Tools | Templates * and open the template in the editor. */package dyno.swing.beans;import java.awt.AlphaComposite;import java.awt.Dimension;import java.awt.Graphics;import java.awt.Graphics2D;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.MouseEvent;import java.awt.event.MouseListener;import java.awt.event.MouseMotionListener;import java.util.ArrayList;import java.util.Calendar;import java.util.Date;import javax.swing.JComponent;import javax.swing.Timer;/** * * @author William Chen */public class DatePanel extends JComponent implements MouseListener, MouseMotionListener{    public static final int NO_EFFECT=0;    public static final int SLIDING_EFFECT=1;    public static final int TRANSLUCENT_EFFECT=2;        private DateModel model;    private int effect=NO_EFFECT;    private Animator animator;        private ArrayList<ActionListener> listeners=new ArrayList<ActionListener>();        public DatePanel() {        setCalendarDate(new Date());        addMouseListener(this);        addMouseMotionListener(this);    }    private static int ANIMATION_INTERVAL=10;    private static int ANIMATION_FRAMES=10;    class Animator implements ActionListener{                private DateModel model1;        private DateModel model2;        private int effect;                private int frameIndex;        private Timer timer;        private boolean vertical;        private boolean l2r;                private void paintVertL2R(Graphics g) {            float ratio=getRatio();            int h=DatePanel.this.getHeight();            int y=(int)(h*ratio);            Graphics copyg=g.create();            copyg.translate(0, y-h);            model2.paint(copyg, DatePanel.this);            copyg.dispose();            copyg=g.create();            copyg.translate(0, y);            model1.paint(copyg, DatePanel.this);            copyg.dispose();        }                private void paintVertR2L(Graphics g) {            float ratio=getRatio();            int h=DatePanel.this.getHeight();            int y=(int)(h*ratio);            Graphics copyg=g.create();            copyg.translate(0, -y);            model1.paint(copyg, DatePanel.this);            copyg.dispose();            copyg=g.create();            copyg.translate(0, h-y);            model1.paint(copyg, DatePanel.this);            copyg.dispose();        }                private void paintHorzL2R(Graphics g) {            float ratio=getRatio();            int w=DatePanel.this.getWidth();            int x=(int)(w*ratio);            Graphics copyg=g.create();            copyg.translate(x-w, 0);            model2.paint(copyg, DatePanel.this);            copyg.dispose();            copyg=g.create();            copyg.translate(x, 0);            model1.paint(copyg, DatePanel.this);            copyg.dispose();        }                private void paintHorzR2L(Graphics g) {            float ratio=getRatio();            int w=DatePanel.this.getWidth();            int x=(int)(w*ratio);            Graphics copyg=g.create();            copyg.translate(-x, 0);            model1.paint(copyg, DatePanel.this);            copyg.dispose();            copyg=g.create();            copyg.translate(w-x, 0);            model1.paint(copyg, DatePanel.this);            copyg.dispose();        }                private void paintVerticalSliding(Graphics g) {            if(l2r)                paintVertL2R(g);            else                paintVertR2L(g);        }                private void paintHorizontalSliding(Graphics g) {            if(l2r)                paintHorzL2R(g);            else                paintHorzR2L(g);        }                private void paintSliding(Graphics g) {            if(vertical)                paintVerticalSliding(g);            else                paintHorizontalSliding(g);        }        private float getRatio(){            return (float)frameIndex/(float)ANIMATION_FRAMES;        }        private void paintTranslucent(Graphics g) {            model1.paint(g, DatePanel.this);            Graphics2D g2d=(Graphics2D)g;            g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, getRatio()));            model2.paint(g, DatePanel.this);        }                public Animator(DateModel m1, DateModel m2, int effect){            model1=m1;            model2=m2;            this.effect=effect;            frameIndex=0;            timer=new Timer(ANIMATION_INTERVAL, this);            vertical=m1.getYear()!=m2.getYear();            if(vertical)                l2r=m2.getYear()<m1.getYear();            else                l2r=m2.getMonth()<m1.getMonth();        }                public void start(){            timer.start();        }                public void stop(){            timer.stop();        }                public void paint(Graphics g){            switch(effect){                case SLIDING_EFFECT:                    paintSliding(g);                    break;                case TRANSLUCENT_EFFECT:                    paintTranslucent(g);                    break;            }        }        public void actionPerformed(ActionEvent e) {            frameIndex++;            if(frameIndex==ANIMATION_FRAMES)                stop();            repaint();        }        public boolean isRunning(){            return timer.isRunning();        }    }    public void setModel(DateModel m){        if(model==null || model.getYear()==m.getYear()        && model.getMonth()==m.getMonth()){            model=m;            repaint();        }else if(effect!=NO_EFFECT){            if(isAnimating())                animator.stop();            animator=new Animator(model, m, effect);            animator.start();            model=m;        }else{            model=m;            repaint();        }    }    boolean isAnimating(){        return animator!=null && animator.isRunning();    }    public DateModel getModel(){        return model;    }    public void setCalendarDate(Date d) {        setModel(new DateModel(d));    }    @Override    protected void paintComponent(Graphics g) {        if(isAnimating())            animator.paint(g);        else            model.paint(g, this);    }    public Dimension getPreferredSize(){        return new Dimension(8*DateModel.CWIDTH, 7*DateModel.RHEIGHT);    }    public void mouseClicked(MouseEvent e) {    }    public void mousePressed(MouseEvent e) {        model.setPressed(true);        repaint();    }    public void mouseReleased(MouseEvent e) {        model.setPressed(false);        repaint();        int d=getDayAt(e);        if(d!=0){            model.setDate(d);            fireActionPerformed(new ActionEvent(this, 0, "choose"));        }    }    public void mouseEntered(MouseEvent e) {    }    public void mouseExited(MouseEvent e) {        model.setHovered_day(0);        repaint();    }    public void mouseDragged(MouseEvent e) {        mouseMoved(e);    }    public void mouseMoved(MouseEvent e) {        model.setHovered_day(getDayAt(e));        repaint();    }    private int getDayAt(MouseEvent e){        return getDayAt(e.getX()/DateModel.CWIDTH, e.getY()/DateModel.RHEIGHT);    }    private int getDayAt(int x, int y){        Calendar calendar=Calendar.getInstance();        calendar.set(model.getYear(), model.getMonth()-1, 1);        int min=calendar.getActualMinimum(Calendar.DAY_OF_MONTH);        int max=calendar.getActualMaximum(Calendar.DAY_OF_MONTH);        calendar.set(model.getYear(), model.getMonth()-1, min);        int start_week=calendar.get(Calendar.WEEK_OF_YEAR);        int start_day=calendar.get(Calendar.DAY_OF_WEEK);        calendar.set(model.getYear(), model.getMonth()-1, max);        int end_week=calendar.get(Calendar.WEEK_OF_YEAR);        int end_day=calendar.get(Calendar.DAY_OF_WEEK);        int end_index=end_week-start_week+2;        if(x<1 || x>7 || y<1 || y>end_index || y==1 && (x<start_day-1 || x>7) || y==end_index && (x<1 || x>end_day))            return 0;        return (y-1)*7+x-start_day+1;    }    public void addActionListener(ActionListener l){        if(!listeners.contains(l))            listeners.add(l);    }    public void removeActionListener(ActionListener l){        if(listeners.contains(l))            listeners.remove(l);    }    protected void fireActionPerformed(ActionEvent e){        for(ActionListener l:listeners)            l.actionPerformed(e);    }        public int getEffect() {        return effect;    }        public void setEffect(int effect) {        this.effect = effect;    }    }