KChannelList

[DeKaDeNz]

package KCClient.UI.Components;

import KCClient.UI.ImageLoader;
import java.awt.*;
import java.awt.event.MouseAdapter;
import java.awt.font.TextAttribute;
import java.util.HashMap;
import java.util.Map;
import javax.swing.*;

/**
 *
 * @author DeKaDeNz
 */
public class KChannelList extends JList{
    
    public KChannelList()
    {
        super();
        this.addMouseMotionListener(new KChannelList_MouseEvents());
    }
    
     public KChannelList(ListModel model)
    {
        super(model);
        this.addMouseMotionListener(new KChannelList_MouseEvents());
    }

    int hoverIndex = -1;
    
    public class KChannelList_MouseEvents extends MouseAdapter
    {
        @Override
        public void mouseMoved(java.awt.event.MouseEvent evt) {
            KChannelList list = (KChannelList)evt.getComponent();
            int pos = evt.getY();
            int itemI = pos/list.getFixedCellHeight();
            if(itemI!=list.hoverIndex)
            {
                list.hoverIndex=itemI;
                list.repaint();

            }

        }
        @Override
        public void mouseExited(java.awt.event.MouseEvent evt)
        {
                KChannelList list = (KChannelList)evt.getComponent();
                list.hoverIndex=-1;
                list.repaint();
        }
    }
    
    @Override
    public void paintComponent(Graphics g)
    {
        drawBorder(g);
        drawBackground(g);
        drawItems(g);
    }

    Color borderColor = Color.BLACK;
    public Color getBorderColor()
    {
        return borderColor;
    }
    public void setBorderColor(Color c)
    {
        borderColor = c;
    }
    private void drawBorder(Graphics g) {
        g.setColor(getBorderColor());
        g.drawRect(0, 0, this.WIDTH-1, this.HEIGHT-1);

    }

    private void drawBackground(Graphics g) {
        g.setColor(this.getBackground());
        g.fillRect(0, 0, this.getWidth(), this.getHeight());
        
    }

   
    
    
    private void drawItemAsString(Graphics g, String s, int i, int y)
    {
        FontMetrics met = g.getFontMetrics();
        int h = 25;
        int y2=y+(h-met.getHeight())/2+met.getAscent();
            
            
            
            //drawfieldback
            if(this.getSelectedIndex()==i)
            {
                g.setColor(Color.BLUE.darker());
                g.fillRect(0,y,this.getWidth(),y+h);
                g.setColor(Color.WHITE);
              
            }
            else
            {
                g.setColor(this.getBackground());
                g.fillRect(0,y,this.getWidth(),y+h);
                g.setColor(Color.BLACK);
            }
            
            
            
            String item = s;
            
            
            int w = (int)met.getStringBounds(s, g).getWidth();
            if(w<maxx)
               maxx = w;
            g.drawString(item,3,y2);
    }
    
    Map<TextAttribute, Integer> fontAttributes = new HashMap<TextAttribute, Integer>();
    int maxx = 0;
    private void drawItems(Graphics g) {
        this.setFixedCellHeight(19);
        
        

        ListModel model = this.getModel();

        
        int y = 0;
        for(int i = 0; i<model.getSize();i++)
        {
            Object c = model.getElementAt(i);
            try {
                String s = (String)c;
                drawItemAsString(g,s,i,y);
                y+=this.getFixedCellHeight();
                continue;
            }
            catch(Exception s)
            {
                
            }
            KChannelList_Item item = (KChannelList_Item)c;
            Font f = g.getFont();
            int fstyle=0;
            if(item.bold)
                fstyle = fstyle | Font.BOLD;
            if(item.italic)
                fstyle = fstyle | Font.ITALIC;
            
           
            if(hoverIndex==i)
                    fontAttributes.put(TextAttribute.UNDERLINE, TextAttribute.UNDERLINE_ON);
            else
                    fontAttributes.remove(TextAttribute.UNDERLINE);

            
           Font newf = new Font(f.getFontName(), f.getStyle() | fstyle, f.getSize()).deriveFont(fontAttributes);
           g.setFont(newf);
            
            
            
            FontMetrics met = g.getFontMetrics();
            int h = this.getFixedCellHeight();
            int y2=y+(h-met.getHeight())/2+met.getAscent();
            

           
            //drawfieldback
            if(this.getSelectedIndex()==i)
            {
                g.setColor(Color.BLUE.darker());
                g.fillRect(0,y,this.getWidth(),y+h);
                g.setColor(Color.WHITE);
              
            }
            else
            {
                g.setColor(this.getBackground());
                g.fillRect(0,y,this.getWidth(),y+h);
                g.setColor(item.color);
            }
            
            
            
            String s = item.toString();
            g.drawString(s,3,y2);
            
            
            
            
            int w = (int)met.getStringBounds(s, g).getWidth();
            if(w<maxx)
               maxx = w;

            //imgdrawing
            if(!item.imgUrl.isEmpty())
            {
                Image img = ImageLoader.getImage(item.imgUrl);
                if(img!=null)
                {
                    int ih = img.getHeight(this);
                    int iw = img.getWidth(this);
                    int iy=y+(h-iw)/2;
                    
                    
                    g.drawImage(img, w+5, iy, this);
                    maxx+=5+iw;
                }
                
               
            }
            
            
            
            
            
            
            
            
            y+=h;
            g.setFont(f);
            
            
            
           
            
            
        }
        this.setFixedCellWidth(maxx);
    }



} 

package KCClient.UI.Components;

import java.awt.Color;

/**
 *
 * @author DeKaDeNz
 */
 public class KChannelList_Item {
        public int user = 1;
        public String value;
        public boolean bold=false;
        public boolean italic=false;
        public String imgUrl="";
        public Color color = Color.BLACK;
        
        public KChannelList_Item(String value)
        {
            this.value = value;
        }
        
        public KChannelList_Item(String value,int user,boolean bold, boolean italic, Color c)
        {
            this.value = value;
            this.bold = bold;
            this.italic = italic;
            this.color = c;
            this.user = user;
        }
        public KChannelList_Item(String value,int user,  boolean bold, boolean italic)
        {
            this.value = value;
            this.bold = bold;
            this.italic = italic;
            this.user = 1;
        }
        public KChannelList_Item(String value,int user,  boolean bold, boolean italic, Color c, String imgUrl)
        {
            this.value = value;
            this.bold = bold;
            this.italic = italic;
            this.color = c;
            this.imgUrl = imgUrl;
            this.user = user;
        }
        
        
        @Override
        public String toString() {
            return value + " ("+user+")";
        }
        
    } 

Nicht gerade das schönste vom schönsten, abes es geht


Example:



//EDIT:
Update, Anzahl der User im Channel mit eingefügt im Source
Ausserdem neuer Konstruktor, danke Golem

[Golem]

Kannst du auch ein Sample erstellen, wie man die JList einfügt?
Habs in einem JFrame gemacht, des funzt aber nicht.

Hab die KChannelList zwar hinzugefügt, kann aber kein Item eintragen.

Hat sich erledigt ^^
Hier die Lösung:

package test;

import javax.swing.DefaultListModel;
import javax.swing.JFrame;

public class Test {
    public static void main(String[] args) {
        JFrame test = new JFrame();
        DefaultListModel model = new DefaultListModel();
        KChannelList list = new KChannelList();
        model.add(0, new KChannelList_Item("test"));
        list.setModel(model);
        test.add(list);
        
        test.setSize(200, 500);
        test.setVisible(true);
    }
} 

Du solltest den Construktor von KChannelList nochmals erweitern. Denn bei einer JList kann im konstruktor ein ListModel angegeben werden:

 public Component_List(ListModel model) {
        super(model);
    } 

[DeKaDeNz]

Funktioniert genauso wie bei der normalen JList.
Achtung gibt grad ein Update des Sources zwecks Underline der gehoverten Fläche.

DefaultListModel listModel = new DefaultListModel();
        listModel.addElement(new KChannelList_Item("Lobby",new Random().nextInt(50), true,false,Color.RED,"pics/icon_FullChannel.gif"));
        listModel.addElement(new KChannelList_Item("Support",new Random().nextInt(50), false,true,Color.BLACK));
          listModel.addElement(new KChannelList_Item("Lobby",new Random().nextInt(50), true,false,Color.RED,"pics/icon_FullChannel.gif"));
        listModel.addElement(new KChannelList_Item("Support",new Random().nextInt(50), false,true,Color.BLACK));
          listModel.addElement(new KChannelList_Item("Lobby",new Random().nextInt(50), true,false,Color.RED,"pics/icon_FullChannel.gif"));
        listModel.addElement(new KChannelList_Item("Support",new Random().nextInt(50), false,true,Color.BLACK));
          listModel.addElement(new KChannelList_Item("Lobby",new Random().nextInt(50), true,false,Color.RED,"pics/icon_FullChannel.gif"));
        listModel.addElement(new KChannelList_Item("Support",new Random().nextInt(50), false,true,Color.BLACK));
          listModel.addElement(new KChannelList_Item("Lobby",new Random().nextInt(50), true,false,Color.RED,"pics/icon_FullChannel.gif"));
        listModel.addElement(new KChannelList_Item("Support",new Random().nextInt(50), false,true,Color.BLACK));
          listModel.addElement(new KChannelList_Item("Lobby",new Random().nextInt(50), true,false,Color.RED,"pics/icon_FullChannel.gif"));
        listModel.addElement(new KChannelList_Item("Support",new Random().nextInt(50), false,true,Color.BLACK));
          listModel.addElement(new KChannelList_Item("Lobby",new Random().nextInt(50), true,false,Color.RED,"pics/icon_FullChannel.gif"));
        listModel.addElement(new KChannelList_Item("Support",new Random().nextInt(50), false,true,Color.BLACK));
          channelList.setModel(listModel); 

Achja addet keine einzelnen Strings. Diese Methode ist veraltet und wird nicht mehr supported