JColorChooser의 견본 크기를 늘리는 방법은 무엇입니까?

Question

JColorChooser/Swatches의 색상 팔레트 크기가 매우 작습니다. 또한 팔레트 주위의 색상이 비슷합니다.

내 용도로는 크기를 늘리거나 색상을 변경해야합니다. 이 작업을 수행하는 방법?

Answer 1

은 "견본"의 크기는 (기본값은 10 인) 필요에 따라 조정할 수 있도록 두 가지 UI 속성에 의해 제어됩니다 : 팔레트 자체를 사용자 정의

는

int length = 20; 
UIManager.put("ColorChooser.swatchesRecentSwatchSize", new Dimension(length, length)); 
UIManager.put("ColorChooser.swatchesSwatchSize", new Dimension(length, length)); 

AbstractColorChooserPanel가의 사용자 지정 하위 클래스를 필요 , 주로 ac & javx.swing.colorchooser에서 DefaultSwatchChooserPanel의 p 작업 (패키지이기 때문에). 기본 설정을 사용자 정의 패널로 바꾸십시오.

JColorChooser chooser = new JColorChooser(); 
List<AbstractColorChooserPanel> choosers = 
     new ArrayList<>(Arrays.asList(chooser.getChooserPanels())); 
choosers.remove(0); 
MySwatchChooserPanel swatch = new MySwatchChooserPanel(); 
choosers.add(0, swatch); 
chooser.setChooserPanels(choosers.toArray(new AbstractColorChooserPanel[0])); 

Answer 2

• [JColorChooser][1] 화합물 JComponent의

  하여 표시 할 수

• 입니다/SwingUtils by @Darryl Burke

를 사용하여 쉽게 해결에 대한 JColorChooser

의 원하는 부분을 사용

import java.awt.*; 
import java.awt.event.*; 
import javax.swing.*; 
import javax.swing.colorchooser.AbstractColorChooserPanel; 
import javax.swing.event.*; 
import javax.swing.plaf.metal.MetalComboBoxIcon; 

public class DropDownComponent2 { 

    private JWindow _window; 
    private boolean _windowShouldBeShown = false; 
    private JComponent _component; 
    private AbstractButton _button; 
    private JFrame _ownerFrame; 

    public DropDownComponent2(JFrame ownerFrame, JComponent component, AbstractButton button) { 
     _ownerFrame = ownerFrame; 
     _component = component; 
     _button = button; 
     _button.addActionListener(new ActionListener() { 
      @Override 
      public void actionPerformed(ActionEvent e) { 
       _window.setVisible(false); 
       Point pt = _button.getLocationOnScreen(); 
       pt.translate(0, _button.getHeight()); 
       _window.setLocation(pt); 
       showWindow(); 
       _windowShouldBeShown = true; 
       Window[] wins = Window.getWindows(); 
       System.out.println(wins.length); 
      } 
     }); 
     _button.addAncestorListener(new AncestorListener() { 
      @Override 
      public void ancestorAdded(AncestorEvent event) { 
       _window.setVisible(false); 
      } 

      @Override 
      public void ancestorRemoved(AncestorEvent event) { 
       _window.setVisible(false); 
      } 

      @Override 
      public void ancestorMoved(AncestorEvent event) { 
       if (event.getSource() != _window) { 
        System.out.println("Ansestor moved"); 
        _window.setVisible(false); 
       } 
      } 
     }); 
     Toolkit.getDefaultToolkit().addAWTEventListener(
       new AWTEventListener() { 
        @Override 
        public void eventDispatched(AWTEvent event) { 
         if (event.getID() == MouseEvent.MOUSE_CLICKED) { 
          if (!_window.getBounds().contains(MouseInfo.getPointerInfo().getLocation())) { 
           if (_windowShouldBeShown) { 
            _windowShouldBeShown = false; 
           } else { 
            _window.setVisible(false); 
           } 
          } 
         } 
        } 
       }, AWTEvent.MOUSE_EVENT_MASK); 
     _window = new JWindow(_ownerFrame); 
     _window.getContentPane().add(component); 
     _window.addWindowFocusListener(new WindowAdapter() { 
      @Override 
      public void windowLostFocus(WindowEvent evt) { 
       System.out.println("window lost focus"); 
       _window.setVisible(false); 
      } 
     }); 
     _window.pack(); 
    } 

    private Rectangle getScreenRect() { 
     return new Rectangle(java.awt.Toolkit.getDefaultToolkit().getScreenSize()); 
    } 

    public void showWindow() { 
     Rectangle screenRect = getScreenRect(); 
     Rectangle windowRect = _window.getBounds(); 
     int sx1 = screenRect.x; 
     int sx2 = screenRect.x + screenRect.width; 
     int sy1 = screenRect.y; 
     int sy2 = screenRect.y + screenRect.height; 
     int wx1 = windowRect.x; 
     int wx2 = windowRect.x + windowRect.width; 
     int wy1 = windowRect.y; 
     int wy2 = windowRect.y + windowRect.height; 
     if (wx2 > sx2) { 
      _window.setLocation(wx1 - (wx2 - sx2), _window.getY()); 
     } 
     if (wx1 < sx1) { 
      _window.setLocation(0, _window.getY()); 
     } 
     if (wy2 > sy2) { 
      _window.setLocation(_window.getX(), wy1 - (wy2 - wy1)); 
     } 
     if (wy2 < sy1) { 
      _window.setLocation(_window.getX(), 0); 
     } 
     SwingUtilities.invokeLater(new Runnable() { 
      @Override 
      public void run() { 
       _window.setVisible(true); 
      } 
     }); 
    } 

    public void hideWindow() { 
     SwingUtilities.invokeLater(new Runnable() { 
      @Override 
      public void run() { 
       _window.setVisible(false); 
      } 
     }); 
    } 
} 

class DropDownFrame extends JFrame { 

    private static final long serialVersionUID = 1L; 
    private JButton _button; 
    private JColorChooser _colorChooser; 
    private DropDownComponent2 _dropDown; 
    private JWindow _window; 

    public DropDownFrame() { 
     _colorChooser = new JColorChooser(); 
     _colorChooser.setPreviewPanel(new JPanel()); 
     _colorChooser.setColor(Color.RED); 
     // Remove panels other than Swatches 
     AbstractColorChooserPanel[] panels = _colorChooser.getChooserPanels(); 
     for (int i = 0; i < panels.length; i++) { 
      if (!panels[i].getDisplayName().equals("Swatches")) { 
       _colorChooser.removeChooserPanel(panels[i]); 
      } else { 
       JPanel panel = panels[i]; 
       System.out.println(panel.getComponentCount()); // 1 
       System.out.println(panel.getPreferredSize()); //width=424,height=112 
       System.out.println(panel.getLayout()); //FlowLayout[hgap=5,vgap=5,align=center] 
      } 
     } 
     _colorChooser.getSelectionModel().addChangeListener(new ChangeListener() { 
      @Override // ### I think the key point is there 
      public void stateChanged(ChangeEvent e) { 
       _button.setForeground(_colorChooser.getColor()); 
       _dropDown.hideWindow(); 
      } 
     }); 
     _button = new JButton("Show JWindow"); 
     _button.setIcon(new MetalComboBoxIcon()); 
     _button.setHorizontalTextPosition(SwingConstants.LEFT); 
     this.getContentPane().add(_button); 
     _dropDown = new DropDownComponent2(DropDownFrame.this, _colorChooser, _button); 
     setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     pack(); 
     setVisible(true); 
    } 

    public static void main(String args[]) { 
     SwingUtilities.invokeLater(new Runnable() { 
      @Override 
      public void run() { 
       DropDownFrame dropDownFrame = new DropDownFrame(); 
      } 
     }); 
    } 
}