package fr.orsay.lri.varna.components;
import java.awt.Color;
import java.awt.Cursor;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import javax.swing.JColorChooser;
import javax.swing.JPanel;
import fr.orsay.lri.varna.models.rna.ModeleColorMap;
public class GradientEditorPanel extends JPanel implements MouseListener, MouseMotionListener{
ModeleColorMap _mcm;
public GradientEditorPanel (ModeleColorMap mcm)
{
_mcm = mcm;
this.addMouseListener( this);
this.addMouseMotionListener(this);
}
public void setColorMap(ModeleColorMap mcm)
{
_mcm = mcm;
}
public ModeleColorMap getColorMap()
{
return _mcm;
}
private final static int TRIGGERS_SEMI_WIDTH = 2;
private final static int PALETTE_HEIGHT = 11;
private final static int REMOVE_HEIGHT = 11;
private final static int TOLERANCE = 5;
private final static int GAP = 4;
private final Color EDGES = Color.gray.brighter();
private final Color BUTTONS = Color.LIGHT_GRAY.brighter();
public int getStartChoose()
{
return getHeight()-PALETTE_HEIGHT-REMOVE_HEIGHT-GAP-1;
}
public int getEndChoose()
{
return getStartChoose()+PALETTE_HEIGHT;
}
public int getStartRemove()
{
return getEndChoose()+GAP;
}
public int getEndRemove()
{
return getStartRemove()+REMOVE_HEIGHT;
}
private int getStripeHeight()
{
return getHeight()-PALETTE_HEIGHT-REMOVE_HEIGHT-2*GAP-1;
}
private Color alterColor(Color c, int inc)
{
int nr = Math.min(Math.max(c.getRed()+inc, 0),255);
int ng = Math.min(Math.max(c.getGreen()+inc, 0),255);
int nb = Math.min(Math.max(c.getBlue()+inc, 0),255);
return new Color(nr,ng,nb);
}
public void paintComponent(Graphics g)
{
super.paintComponent(g);
Graphics2D g2d = (Graphics2D) g;
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
int height = getStripeHeight();
double v1 = _mcm.getMinValue();
double v2 = _mcm.getMaxValue();
for (int i=0;i<=getWidth();i++)
{
double ratio = (((double)i)/((double)getWidth()));
double val = v1+(v2-v1)*ratio;
g2d.setColor(_mcm.getColorForValue(val));
g2d.drawLine(i, 0, i, height);
}
for(int i=0;i<_mcm.getNumColors();i++)
{
double val = _mcm.getValueAt(i);
Color c = _mcm.getColorAt(i);
double norm = (val-_mcm.getMinValue())/(_mcm.getMaxValue()-_mcm.getMinValue());
int x = (int)(norm*(getWidth()-1));
// Target
g2d.setColor(c);
g2d.fillRect(x-TRIGGERS_SEMI_WIDTH+1, 0, 2*TRIGGERS_SEMI_WIDTH-1, getHeight()-1);
g2d.setColor(EDGES);
g2d.drawLine(x-TRIGGERS_SEMI_WIDTH, 0, x-TRIGGERS_SEMI_WIDTH, getHeight());
g2d.drawLine(x+TRIGGERS_SEMI_WIDTH, 0, x+TRIGGERS_SEMI_WIDTH, getHeight());
if (i==0)
{
// Choose Color
g2d.setColor(EDGES);
g2d.drawRect(x,height+GAP,PALETTE_HEIGHT,2*PALETTE_HEIGHT+GAP);
g2d.setColor(c);
g2d.fillRect(x+1,height+GAP+1,PALETTE_HEIGHT-1,2*PALETTE_HEIGHT+GAP-1);
}
else if (i==_mcm.getNumColors()-1)
{
// Choose Color
g2d.setColor(EDGES);
g2d.drawRect(x-PALETTE_HEIGHT,height+GAP,PALETTE_HEIGHT,2*PALETTE_HEIGHT+GAP);
g2d.setColor(c);
g2d.fillRect(x-PALETTE_HEIGHT+1,height+GAP+1,PALETTE_HEIGHT-1,2*PALETTE_HEIGHT+GAP-1);
}
else
{
// Choose Color
g2d.setColor(EDGES);
g2d.drawRect(x-PALETTE_HEIGHT/2,height+GAP,PALETTE_HEIGHT,PALETTE_HEIGHT);
g2d.setColor(alterColor(c,-15));
g2d.fillRect(x-PALETTE_HEIGHT/2+1,height+GAP+1,PALETTE_HEIGHT-1,PALETTE_HEIGHT-1);
g2d.setColor(c);
g2d.fillOval(x-PALETTE_HEIGHT/2+1,height+GAP+1,PALETTE_HEIGHT-1,PALETTE_HEIGHT-1);
g2d.setColor(alterColor(c,10));
g2d.fillOval(x-PALETTE_HEIGHT/2+1+2,height+GAP+1+2,PALETTE_HEIGHT-1-4,PALETTE_HEIGHT-1-4);
// Remove Color
g2d.setColor(EDGES);
g2d.drawRect(x-PALETTE_HEIGHT/2,height+2*GAP+PALETTE_HEIGHT,REMOVE_HEIGHT,REMOVE_HEIGHT);
g2d.setColor(BUTTONS);
g2d.fillRect(x-PALETTE_HEIGHT/2+1,height+2*GAP+1+PALETTE_HEIGHT,REMOVE_HEIGHT-1,REMOVE_HEIGHT-1);
int xcross1 = x-PALETTE_HEIGHT/2+2;
int ycross1 = height+2*GAP+PALETTE_HEIGHT +2;
int xcross2 = xcross1+REMOVE_HEIGHT-4;
int ycross2 = ycross1+REMOVE_HEIGHT-4;
g2d.setColor(Color.red);
g2d.drawLine(xcross1, ycross1, xcross2 , ycross2);
g2d.drawLine(xcross1, ycross2, xcross2 , ycross1);
}
}
}
private boolean isChooseColor(int x, int y)
{
if (_selectedIndex != -1)
{
if ((_selectedIndex ==0)||(_selectedIndex == _mcm.getNumColors()-1))
return (y<=getEndRemove() && y>=getStartChoose() && Math.abs(getXPos(_selectedIndex)-x)<=PALETTE_HEIGHT);
if (y<=getEndChoose() && y>=getStartChoose())
{
return Math.abs(getXPos(_selectedIndex)-x)<=PALETTE_HEIGHT/2;
}
}
return false;
}
private boolean isRemove(int x, int y)
{
if (_selectedIndex != -1)
{
if ((_selectedIndex ==0)||(_selectedIndex == _mcm.getNumColors()-1))
return false;
if (y<=getEndRemove() && y>=getStartRemove())
{
return Math.abs(getXPos(_selectedIndex)-x)<=PALETTE_HEIGHT/2;
}
}
return false;
}
private int getXPos(int i)
{
double val = _mcm.getValueAt(i);
double norm = (val-_mcm.getMinValue())/(_mcm.getMaxValue()-_mcm.getMinValue());
return (int)(norm*(getWidth()-1));
}
private int locateSelectedIndex(int x, int y)
{
double dist = Double.MAX_VALUE;
int index = -1;
for(int i=0;i<_mcm.getNumColors();i++)
{
int xp = getXPos(i);
double tmpDist = Math.abs(x-xp);
if (tmpDist<dist)
{
index = i;
dist = tmpDist;
}
}
return index;
}
private int _selectedIndex = -1;
public void mouseClicked(MouseEvent arg0) {
_selectedIndex = locateSelectedIndex(arg0.getX(),arg0.getY());
if (_selectedIndex!=-1)
{
if (isRemove(arg0.getX(),arg0.getY()))
{
removeEntry(_selectedIndex);
}
else if (Math.abs(getXPos(_selectedIndex)-arg0.getX())>TOLERANCE)
{
double val = _mcm.getMinValue()+ arg0.getX()*(_mcm.getMaxValue()-_mcm.getMinValue())/(getWidth()-1);
Color nc = JColorChooser.showDialog(this, "Choose new color" ,_mcm.getColorAt(_selectedIndex));
if (nc != null)
{
_mcm.addColor(val, nc);
repaint();
firePropertyChange("PaletteChanged","a","b");
}
}
}
}
public void mouseEntered(MouseEvent arg0) {
// TODO Auto-generated method stub
}
public void mouseExited(MouseEvent arg0) {
// TODO Auto-generated method stub
}
public void mousePressed(MouseEvent arg0) {
requestFocus();
_selectedIndex = locateSelectedIndex(arg0.getX(),arg0.getY());
if (_selectedIndex!=-1)
{
if (isChooseColor(arg0.getX(),arg0.getY()))
{
Color nc = JColorChooser.showDialog(this, "Choose new color" ,_mcm.getColorAt(_selectedIndex));
if (nc != null)
{
double nv = _mcm.getValueAt(_selectedIndex);
replaceEntry(_selectedIndex, nc, nv);
_selectedIndex = -1;
}
}
}
}
public void mouseReleased(MouseEvent arg0) {
_selectedIndex = -1;
}
private void replaceEntry(int index, Color nc, double nv)
{
ModeleColorMap cm = new ModeleColorMap();
for(int i=0;i<_mcm.getNumColors();i++)
{
if (i!=index)
{
double val = _mcm.getValueAt(i);
Color c = _mcm.getColorAt(i);
cm.addColor(val, c);
}
else
{
cm.addColor(nv, nc);
}
}
_mcm = cm;
repaint();
firePropertyChange("PaletteChanged","a","b");
}
private void removeEntry(int index)
{
ModeleColorMap cm = new ModeleColorMap();
for(int i=0;i<_mcm.getNumColors();i++)
{
if (i!=index)
{
double val = _mcm.getValueAt(i);
Color c = _mcm.getColorAt(i);
cm.addColor(val, c);
}
}
_mcm = cm;
repaint();
firePropertyChange("PaletteChanged","a","b");
}
public void mouseDragged(MouseEvent arg0) {
if ((_selectedIndex!=-1)&&(_selectedIndex!=0)&&(_selectedIndex!=_mcm.getNumColors()-1))
{
Color c = _mcm.getColorAt(_selectedIndex);
double val = _mcm.getMinValue()+ arg0.getX()*(_mcm.getMaxValue()-_mcm.getMinValue())/(getWidth()-1);
replaceEntry(_selectedIndex, c, val);
}
}
public void mouseMoved(MouseEvent arg0) {
Cursor c = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
_selectedIndex = locateSelectedIndex(arg0.getX(),arg0.getY());
if (_selectedIndex!=-1)
{
if (isChooseColor(arg0.getX(),arg0.getY()))
{
c = Cursor.getPredefinedCursor(Cursor.HAND_CURSOR);
}
else if ((_selectedIndex != 0)&&(_selectedIndex != _mcm.getNumColors()-1))
{
if (isRemove(arg0.getX(),arg0.getY()))
{
c = Cursor.getPredefinedCursor(Cursor.HAND_CURSOR);
}
else if (Math.abs(getXPos(_selectedIndex)-arg0.getX())<=TOLERANCE)
{
c = Cursor.getPredefinedCursor(Cursor.E_RESIZE_CURSOR);
}
else if (arg0.getY()<getHeight()-this.getStripeHeight())
{
c = Cursor.getPredefinedCursor(Cursor.HAND_CURSOR);
}
else
{
Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
}
}
}
setCursor(c);
}
}