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私は自分の問題を説明できることを願っています。 私は、左側からツリーの数と右側から1つのツリーを含むことができるダイアログに取り組んでいます。 私は左から右へ線を描く必要がありますが、なんらかの理由で同じ木のアイテム境界を取得しています。 たとえば、ツリー1で最初のアイテムが選択されると、ツリー2の最初のアイテムと同じ境界位置が返されます。 どのようにしてアイテムの境界を取得するのですか?ウィザードを基準に制御境界を取得する方法
import org.eclipse.draw2d.ColorConstants;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.SashForm;
import org.eclipse.swt.custom.ScrolledComposite;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
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.Shell;
import org.eclipse.swt.widgets.TreeItem;
public class SWTSashForm
{
public static void main (String [] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
SashForm sashForm = new SashForm(shell, SWT.HORIZONTAL);
Composite composite = new Composite(sashForm, SWT.NONE);
composite.setLayout(new GridLayout());
composite.setLayoutData(new GridData(GridData.FILL_BOTH));
composite.setBackground(ColorConstants.white);
for (int i = 0; i < 3; i++) {
Label lbl = new Label(composite, SWT.NONE);
lbl.setText("Tree " + i);
// Configure scrolled composite
ScrolledComposite scrolledComposite = new ScrolledComposite(composite, SWT.V_SCROLL | SWT.H_SCROLL | SWT.BORDER);
scrolledComposite.setLayout(new GridLayout());
scrolledComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
scrolledComposite.setExpandVertical(true);
scrolledComposite.setExpandHorizontal(true);
scrolledComposite.setAlwaysShowScrollBars(true);
scrolledComposite.setMinSize(composite.computeSize(SWT.DEFAULT, SWT.DEFAULT));
// Add content to scrolled composite
Composite scrolledContent = new Composite(scrolledComposite, SWT.NONE);
scrolledContent.setLayout(new GridLayout());
GridData gridData = new GridData();
gridData.horizontalAlignment = SWT.FILL;
gridData.grabExcessHorizontalSpace = true;
gridData.verticalAlignment = SWT.FILL;
gridData.grabExcessVerticalSpace = true;
scrolledContent.setLayoutData(gridData);
scrolledComposite.setContent(scrolledContent);
final TreeViewer tree = new TreeViewer(scrolledContent);
for(int loopIndex0 = 0; loopIndex0 < 10; loopIndex0++) {
TreeItem treeItem0 = new TreeItem(tree.getTree(), 0);
treeItem0.setText("Level 0 Item "+ loopIndex0);
for(int loopIndex1 = 0; loopIndex1 < 10; loopIndex1++) {
TreeItem treeItem1 = new TreeItem(treeItem0, 0);
treeItem1.setText("Level 1 Item "+ loopIndex1);
for(int loopIndex2 = 0; loopIndex2 < 10; loopIndex2++) {
TreeItem treeItem2 = new TreeItem(treeItem1, 0);
treeItem2.setText("Level 2 Item "+ loopIndex2);
}
}
}
tree.getTree().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
tree.getTree().addListener(SWT.Selection, new Listener() {
public void handleEvent(Event e) {
TreeItem[] selection = tree.getTree().getSelection();
for (int i = 0; i < selection.length; i++){
TreeItem item = selection[i];
Rectangle bounds = item.getBounds();
System.out.println("Tree item bounds y " + bounds.y );
}
} });
}
new TreeViewer(sashForm);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep();
}
display.dispose();
}
}
感謝、その作品! –