sashexample.java

用java 实现的IE browser适合于学者

package com.hnjchina.example.tableviewer;

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.LineBackgroundEvent;
import org.eclipse.swt.custom.LineBackgroundListener;
import org.eclipse.swt.custom.SashForm;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.dnd.Clipboard;
import org.eclipse.swt.dnd.TextTransfer;
import org.eclipse.swt.dnd.Transfer;
import org.eclipse.swt.events.ControlEvent;
import org.eclipse.swt.events.ControlListener;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.MouseListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.layout.FormLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Sash;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.part.ViewPart;

public class SashExample  extends ViewPart {
    public void createPartControl(Composite parent) {
        createContents(parent);
        SashFormExample(parent);
        SashFormExample2(parent);
        StyleText(parent);
    }
    public void setFocus() {
    }
    public void createContents(Composite composite) {
        composite.setLayout(new FormLayout());
        // Create the sash first, so the other controls
        // can be attached to it.
        final Sash sash = new Sash(composite, SWT.VERTICAL);
        FormData data = new FormData();
        data.top = new FormAttachment(0, 0); // Attach to top
        data.bottom = new FormAttachment(100, 0); // Attach to bottom
        data.left = new FormAttachment(50, 0); // Attach halfway across
        sash.setLayoutData(data);
        sash.addSelectionListener(new SelectionAdapter() {
          public void widgetSelected(SelectionEvent event) {
            // We reattach to the left edge, and we use the x value of the event to
            // determine the offset from the left
            ((FormData) sash.getLayoutData()).left = new FormAttachment(0, event.x);

            // Until the parent window does a layout, the sash will not be redrawn in
            // its new location.
            sash.getParent().layout();
          }
        });

        // Create the first text box and attach its right edge
        // to the sash
        Text one = new Text(composite, SWT.BORDER);
        data = new FormData();
        data.top = new FormAttachment(0, 0);
        data.bottom = new FormAttachment(100, 0);
        data.left = new FormAttachment(0, 0);
        data.right = new FormAttachment(sash, 0);
        one.setLayoutData(data);

        Text Three = new Text(composite, SWT.BORDER);
        data = new FormData();
        data.top = new FormAttachment(0, 0);
        data.bottom = new FormAttachment(100, 0);
        data.left = new FormAttachment(sash, 0);
        data.right = new FormAttachment(100, 0);
        Three.setLayoutData(data);
      }
    public void SashFormExample(Composite composite) {
        SashForm sashForm;
        final SashForm sashForm2;
        composite.setLayout(new FillLayout());
        sashForm = new SashForm(composite, SWT.HORIZONTAL);
        Text text1 = new Text(sashForm, SWT.CENTER);
        text1.setText("Text in pane #1");
        Text text2 = new Text(sashForm, SWT.CENTER);
        text2.setText("Text in pane #2");
        sashForm2 = new SashForm(sashForm, SWT.VERTICAL);
        final Label labelA = new Label(sashForm2, SWT.BORDER | SWT.CENTER);
        labelA.setText("Label in pane A");
        final Label labelB = new Label(sashForm2, SWT.BORDER |SWT.CENTER);
        labelB.setText("Label in pane B");
        text1.addControlListener(new ControlListener() {
          public void controlMoved(ControlEvent e) {
          }

          public void controlResized(ControlEvent e) {
            System.out.println("Resized");
          }
        });
        sashForm.setWeights(new int[]{1, 2, 3});
        labelA.addMouseListener(new MouseListener() {
          public void mouseDoubleClick(MouseEvent e) {
            if(sashForm2.getMaximizedControl() == labelA)
              sashForm2.setMaximizedControl(null);
            else
              sashForm2.setMaximizedControl(labelA);
          }

          public void mouseDown(MouseEvent e) {
          }

          public void mouseUp(MouseEvent e) {
          }
        });
    }
    
    private void SashFormExample2(Composite parent) {
        // Our layout will have a row of buttons, and
        // then a SashForm below it.
        parent.setLayout(new GridLayout(1, false));

        // Create the row of buttons
        Composite buttonBar = new Composite(parent, SWT.NONE);
        buttonBar.setLayout(new RowLayout());
        Button flip = new Button(buttonBar, SWT.PUSH);
        flip.setText("Switch Orientation");
        Button weights = new Button(buttonBar, SWT.PUSH);
        weights.setText("Restore Weights");

        // Create the SashForm
        Composite sash = new Composite(parent, SWT.NONE);
        sash.setLayout(new FillLayout());
        sash.setLayoutData(new GridData(GridData.FILL_BOTH));
        final SashForm sashForm = new SashForm(sash, SWT.HORIZONTAL);

        // Change the width of the sashes
        sashForm.SASH_WIDTH = 20;

        // Change the color used to paint the sashes
        sashForm.setBackground(parent.getDisplay().getSystemColor(SWT.COLOR_GREEN));

        // Create the buttons and their event handlers
        final Button one = new Button(sashForm, SWT.PUSH);
        one.setText("One");
        one.addSelectionListener(new SelectionAdapter() {
          public void widgetSelected(SelectionEvent event) {
            maximizeHelper(one, sashForm);
          }
        });

        final Button two = new Button(sashForm, SWT.PUSH);
        two.setText("Two");
        two.addSelectionListener(new SelectionAdapter() {
          public void widgetSelected(SelectionEvent event) {
            maximizeHelper(two, sashForm);
          }
        });

        final Button three = new Button(sashForm, SWT.PUSH);
        three.setText("Three");
        three.addSelectionListener(new SelectionAdapter() {
          public void widgetSelected(SelectionEvent event) {
            maximizeHelper(three, sashForm);
          }
        });

        // Set the relative weights for the buttons
        sashForm.setWeights(new int[] { 1, 2, 3});

        // Add the Switch Orientation functionality
        flip.addSelectionListener(new SelectionAdapter() {
          public void widgetSelected(SelectionEvent event) {
            switch (sashForm.getOrientation()) {
            case SWT.HORIZONTAL:
              sashForm.setOrientation(SWT.VERTICAL);
              break;
            case SWT.VERTICAL:
              sashForm.setOrientation(SWT.HORIZONTAL);
              break;
            }
          }
        });

        // Add the Restore Weights functionality
        weights.addSelectionListener(new SelectionAdapter() {
          public void widgetSelected(SelectionEvent event) {
            sashForm.setWeights(new int[] { 1, 2, 3});
          }
        });
      }

      /**
       * Helper method for our maximize behavior. If the passed control is already
       * maximized, restore it. Otherwise, maximize it
       * 
       * @param control the control to maximize or restore
       * @param sashForm the parent SashForm
       */
      private void maximizeHelper(Control control, SashForm sashForm) {
        // See if the control is already maximized
        if (control == sashForm.getMaximizedControl()) {
          // Already maximized; restore it
          sashForm.setMaximizedControl(null);
        } else {
          // Not yet maximized, so maximize it
          sashForm.setMaximizedControl(control);
        }
      }

      public	void	StyleText(final Composite parent){
          final StyledText styledText;
          parent.setLayout(new GridLayout());
          styledText = new StyledText(parent, SWT.MULTI | SWT.WRAP | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
          styledText.setLayoutData(new GridData(GridData.FILL_BOTH));
          styledText.addLineBackgroundListener(new LineBackgroundListener() {
            public void lineGetBackground(LineBackgroundEvent event) {
              if(styledText.getLineAtOffset(event.lineOffset) % 2 == 1)
                event.lineBackground = parent.getDisplay().getSystemColor(SWT.COLOR_YELLOW);
            }
          });
          styledText.setText("Line 0\r\nLine 1\r\nLine 2\r\nLine 3\r\nLine 4\r\nLine 5\r\nLine 6");
      }
}