--- /dev/null
+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;
+ repaint();
+ firePropertyChange("PaletteChanged","a","b");
+ }
+
+ 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);
+ }
+ }
+
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