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Beitrag 37 von 1460 (3%)

Autor	Andre_Uhres
Datum	19.12.05, 04:19
Betreff	Re: Farb/bild auswahl

---

/*
* Eine_AusSechsFarben.java
*/
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Eine_AusSechsFarben extends JFrame {
    public Eine_AusSechsFarben() {
        super("DEMO: Eine aus sechs Farben/Symbolen");
        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        setSize(400,300);
        setLocationRelativeTo(null);
        
        //JComponents erzeugen:
        toolbar = new JToolBar();
        paletteBtn = new JButton("Farbe wählen");
        paletteBtn2 = new JButton("Symbol wählen");
        mainPanel = new JPanel();
        btn = new JButton();
        
        //Layout:
        toolbar.setFloatable(false);
        toolbar.add(paletteBtn);
        toolbar.add(paletteBtn2);
        getContentPane().add(toolbar, BorderLayout.NORTH);
        mainPanel.add(btn);
        getContentPane().add(mainPanel,BorderLayout.CENTER);
        
        //Listeners:
        paletteBtn.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                paletteBtnActionPerformed(evt);
            }
        });
        paletteBtn2.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                paletteBtn2ActionPerformed(evt);
            }
        });
    }
    private void paletteBtnActionPerformed(java.awt.event.ActionEvent evt) {
        chooser = new ColorChooser(this,true,false);
        Color color = chooser.getSelectedColor();
        btn.setBackground(color);
        validate();
    }
    private void paletteBtn2ActionPerformed(java.awt.event.ActionEvent evt) {
        chooser = new ColorChooser(this,true,true);
        Icon icon = chooser.getSelectedIcon();
        btn.setIcon(icon);
        validate();
    }
    public static void main(String args[]) { new Eine_AusSechsFarben().setVisible(true); }
    private ColorChooser chooser;
    private JButton paletteBtn,paletteBtn2, btn;
    private JToolBar toolbar;
    private JPanel mainPanel ;
}
class ColorChooser extends JDialog implements ActionListener{
    public ColorChooser(Frame parent, boolean modal, boolean isIconChooser) {
        super(parent, modal);
        this.isIconChooser=isIconChooser;
        setSize(380,170);
        setLocationRelativeTo(parent);
        setUndecorated(true);
        
        //JComponents erzeugen:
        colorChooser = new JPanel();
        chooser = new JPanel();
        preview = new JPanel();
        preview1 = new JButton();
        okB = new JButton("OK");
        
        //Layout:
        chooser.setLayout(new GridLayout(6, 1, 1, 1));
        chooser.setPreferredSize(new Dimension(50, 120));
        preview.setPreferredSize(new Dimension(240, 40));
        preview.add(preview1);
        if(!isIconChooser){
            initColors();
            for( int i =0; i<colors.length; i++ ){
                addButton(colors[i]);
            }
        }
        else{
            initIcons();
            for( int i =0; i<icons.length; i++ ){
                addButton(icons[i]);
            }
        }
        colorChooser.add(chooser);
        colorChooser.add(preview);
        colorChooser.add(okB);
        getContentPane().add(colorChooser, BorderLayout.CENTER);
        
        //Listener:
        okB.addActionListener(this);
        okB.setEnabled(false);
        setVisible(true);
    }
    private JButton addButton(Object obj) {
        JButton button = new JButton();
        if(!isIconChooser){
            button.setBackground((Color) obj);
        }
        else{
            button.setIcon((Icon) obj);
        }
        button.setRolloverEnabled(false);
        chooser.add(button);
        button.addActionListener(this);
        return(button);
    }
    public void actionPerformed(ActionEvent e) {
        if( e.getSource() == okB ){
            setVisible(false);
        }
        else{
            if(!isIconChooser){
                JButton button = (JButton)e.getSource();
                Color bg = button.getBackground();
                
                preview1.setBackground(bg);
                okB.setEnabled(true);
            }
            else{
                JButton button = (JButton)e.getSource();
                Icon bg = button.getIcon();
                preview1.setIcon(bg);
                okB.setEnabled(true);
            }
        }
    }
    public Color getSelectedColor(){
        Color selectedColor = null;
        selectedColor = preview1.getBackground();
        return selectedColor;
    }
    public Icon getSelectedIcon(){
        Icon selectedIcon = null;
        selectedIcon = preview1.getIcon();
        return selectedIcon;
    }
    
    private void initColors() {
        int numColors = colorValues.length / 3;
        colors = new Color[numColors];
        for (int i = 0; i < numColors ; i++) {
            colors[i] = new Color( colorValues[(i*3)], colorValues[(i*3)+1], colorValues[(i*3)+2] );
        }
    }
    private void initIcons() {
        int numIcons = iconValues.length;
        icons = new Icon[numIcons];
        for (int i = 0; i < numIcons; i++) {
            icons[i] = new ImageIcon( iconValues[i] );
        }
    }
    private final Color DEFAULT_COLOR = (new JButton()).getBackground();
    private JPanel colorChooser, preview;
    private JPanel chooser;
    private JButton preview1, okB;
    private Color[] colors;
    private boolean isIconChooser;
    private int[] colorValues = {
        255, 255, 255,
        0, 255, 255,
        0, 0, 255,
        255, 0 , 0,
        0, 255, 0,
        0, 0, 0,
    };
    private Icon[] icons;
    private String[] iconValues = {
        "toolbarButtonGraphics\\general\\About16.gif",
        "toolbarButtonGraphics\\general\\Add16.gif",
        "toolbarButtonGraphics\\general\\AlignBottom16.gif",
        "toolbarButtonGraphics\\general\\Bookmarks16.gif",
        "toolbarButtonGraphics\\general\\ComposeMail16.gif",
        "toolbarButtonGraphics\\general\\ContextualHelp16.gif",
    };
}

[editiert: 19.12.05, 04:24 von ]


Diskussionsverlauf:

Farb/bild auswahl     Re: Farb/bild auswahl

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