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products/Sources/formale Sprachen/Java/Openjdk/src/demo/share/jfc/SwingSet2/ (Sun/Oracle ^©) Datei vom 13.11.2022 mit Größe 11 kB

Quelle SplitPaneDemo.java Sprache: JAVA

/*
*
* Copyright (c) 2007, 2021, Oracle and/or its affiliates. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
*   - Redistributions of source code must retain the above copyright
*     notice, this list of conditions and the following disclaimer.
*
*   - Redistributions in binary form must reproduce the above copyright
*     notice, this list of conditions and the following disclaimer in the
*     documentation and/or other materials provided with the distribution.
*
*   - Neither the name of Oracle nor the names of its
*     contributors may be used to endorse or promote products derived
*     from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.ButtonGroup;
import javax.swing.JCheckBox;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JSplitPane;
import javax.swing.JTextField;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

/**
* Split Pane demo
*
* @author Scott Violet
* @author Jeff Dinkins
*/
public class SplitPaneDemo extends DemoModule {

    JSplitPane splitPane = null;
    JLabel earth = null;
    JLabel moon = null;

    JTextField divSize;
    JTextField earthSize;
    JTextField moonSize;

    /**
     * main method allows us to run as a standalone demo.
     */
    public static void main(String[] args) {
        SplitPaneDemo demo = new SplitPaneDemo(null);
        demo.mainImpl();
    }

    /**
     * SplitPaneDemo Constructor
     */
    public SplitPaneDemo(SwingSet2 swingset) {
        super(swingset, "SplitPaneDemo", "toolbar/JSplitPane.gif");

        earth = new JLabel(createImageIcon("splitpane/earth.jpg", getString("SplitPaneDemo.earth")));
        earth.setMinimumSize(new Dimension(20, 20));

        moon = new JLabel(createImageIcon("splitpane/moon.jpg", getString("SplitPaneDemo.moon")));
        moon.setMinimumSize(new Dimension(20, 20));

        splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, earth, moon);
        splitPane.setContinuousLayout(true);
        splitPane.setOneTouchExpandable(true);

        splitPane.setDividerLocation(200);

        getDemoPanel().add(splitPane, BorderLayout.CENTER);
        getDemoPanel().setBackground(Color.black);

        getDemoPanel().add(createSplitPaneControls(), BorderLayout.SOUTH);
    }

    /**
     * Creates controls to alter the JSplitPane.
     */
    protected JPanel createSplitPaneControls() {
        JPanel wrapper = new JPanel();
        ButtonGroup group = new ButtonGroup();
        JRadioButton button;

        Box buttonWrapper = new Box(BoxLayout.X_AXIS);

        wrapper.setLayout(new GridLayout(0, 1));

        /* Create a radio button to vertically split the split pane. */
        button = new JRadioButton(getString("SplitPaneDemo.vert_split"));
        button.setMnemonic(getMnemonic("SplitPaneDemo.vert_split_mnemonic"));
        button.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                splitPane.setOrientation(JSplitPane.VERTICAL_SPLIT);
            }
        });
        group.add(button);
        buttonWrapper.add(button);

        /* Create a radio button the horizontally split the split pane. */
        button = new JRadioButton(getString("SplitPaneDemo.horz_split"));
        button.setMnemonic(getMnemonic("SplitPaneDemo.horz_split_mnemonic"));
        button.setSelected(true);
        button.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                splitPane.setOrientation(JSplitPane.HORIZONTAL_SPLIT);
            }
        });
        group.add(button);
        buttonWrapper.add(button);

        /* Create a check box as to whether or not the split pane continually
           lays out the component when dragging. */
        JCheckBox checkBox = new JCheckBox(getString("SplitPaneDemo.cont_layout"));
        checkBox.setMnemonic(getMnemonic("SplitPaneDemo.cont_layout_mnemonic"));
        checkBox.setSelected(true);

        checkBox.addChangeListener(new ChangeListener() {
            public void stateChanged(ChangeEvent e) {
                splitPane.setContinuousLayout(
                    ((JCheckBox)e.getSource()).isSelected());
            }
        });
        buttonWrapper.add(checkBox);

        /* Create a check box as to whether or not the split pane divider
           contains the oneTouchExpandable buttons. */
        checkBox = new JCheckBox(getString("SplitPaneDemo.one_touch_expandable"));
        checkBox.setMnemonic(getMnemonic("SplitPaneDemo.one_touch_expandable_mnemonic"));
        checkBox.setSelected(true);

        checkBox.addChangeListener(new ChangeListener() {
            public void stateChanged(ChangeEvent e) {
                splitPane.setOneTouchExpandable(
                    ((JCheckBox) e.getSource()).isSelected());
            }
        });
        buttonWrapper.add(checkBox);
        wrapper.add(buttonWrapper);

        /* Create a text field to change the divider size. */
        JPanel                   tfWrapper;
        JLabel                   label;

        divSize = new JTextField();
        divSize.setText(Integer.toString(splitPane.getDividerSize()));
        divSize.setColumns(5);
        divSize.getAccessibleContext().setAccessibleName(getString("SplitPaneDemo.divider_size"));
        divSize.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                String  value = ((JTextField)e.getSource()).getText();
                int newSize;

                try {
                    newSize = Integer.parseInt(value);
                } catch (Exception ex) {
                    newSize = -1;
                }
                if(newSize > 0) {
                    splitPane.setDividerSize(newSize);
                } else {
                    JOptionPane.showMessageDialog(splitPane,
                                                  getString("SplitPaneDemo.invalid_divider_size"),
                                                  getString("SplitPaneDemo.error"),
                                                  JOptionPane.ERROR_MESSAGE);
                }
            }
        });
        label = new JLabel(getString("SplitPaneDemo.divider_size"));
        tfWrapper = new JPanel(new FlowLayout(FlowLayout.LEFT));
        tfWrapper.add(label);
        tfWrapper.add(divSize);
        label.setLabelFor(divSize);
        label.setDisplayedMnemonic(getMnemonic("SplitPaneDemo.divider_size_mnemonic"));
        wrapper.add(tfWrapper);

        /* Create a text field that will change the preferred/minimum size
           of the earth component. */
        earthSize = new JTextField(String.valueOf(earth.getMinimumSize().width));
        earthSize.setColumns(5);
        earthSize.getAccessibleContext().setAccessibleName(getString("SplitPaneDemo.first_component_min_size"));
        earthSize.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                String           value = ((JTextField)e.getSource()).getText();
                int              newSize;

                try {
                    newSize = Integer.parseInt(value);
                } catch (Exception ex) {
                    newSize = -1;
                }
                if(newSize > 10) {
                    earth.setMinimumSize(new Dimension(newSize, newSize));
                } else {
                    JOptionPane.showMessageDialog(splitPane,
                                                  getString("SplitPaneDemo.invalid_min_size") +
                                                  getString("SplitPaneDemo.must_be_greater_than") + 10,
                                                  getString("SplitPaneDemo.error"),
                                                  JOptionPane.ERROR_MESSAGE);
                }
            }
        });
        label = new JLabel(getString("SplitPaneDemo.first_component_min_size"));
        tfWrapper = new JPanel(new FlowLayout(FlowLayout.LEFT));
        tfWrapper.add(label);
        tfWrapper.add(earthSize);
        label.setLabelFor(earthSize);
        label.setDisplayedMnemonic(getMnemonic("SplitPaneDemo.first_component_min_size_mnemonic"));
        wrapper.add(tfWrapper);

        /* Create a text field that will change the preferred/minimum size
           of the moon component. */
        moonSize = new JTextField(String.valueOf(moon.getMinimumSize().width));
        moonSize.setColumns(5);
        moonSize.getAccessibleContext().setAccessibleName(getString("SplitPaneDemo.second_component_min_size"));
        moonSize.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                String           value = ((JTextField)e.getSource()).getText();
                int              newSize;

                try {
                    newSize = Integer.parseInt(value);
                } catch (Exception ex) {
                    newSize = -1;
                }
                if(newSize > 10) {
                    moon.setMinimumSize(new Dimension(newSize, newSize));
                } else {
                    JOptionPane.showMessageDialog(splitPane,
                                                  getString("SplitPaneDemo.invalid_min_size") +
                                                  getString("SplitPaneDemo.must_be_greater_than") + 10,
                                                  getString("SplitPaneDemo.error"),
                                                  JOptionPane.ERROR_MESSAGE);
                }
            }
        });
        label = new JLabel(getString("SplitPaneDemo.second_component_min_size"));
        tfWrapper = new JPanel(new FlowLayout(FlowLayout.LEFT));
        tfWrapper.add(label);
        tfWrapper.add(moonSize);
        label.setLabelFor(moonSize);
        label.setDisplayedMnemonic(getMnemonic("SplitPaneDemo.second_component_min_size_mnemonic"));
        wrapper.add(tfWrapper);

        return wrapper;
    }

    void updateDragEnabled(boolean dragEnabled) {
        divSize.setDragEnabled(dragEnabled);
        earthSize.setDragEnabled(dragEnabled);
        moonSize.setDragEnabled(dragEnabled);
    }

}

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