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[news.eclipse.platform.swt] Re: TableTreeViewer support for the new tree table widget
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import java.io.*;
import java.util.*;
import org.eclipse.jface.viewers.*;
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.program.*;
import org.eclipse.swt.widgets.*;
public class TreeViewerTest {
class TreeViewerTestLabelProvider implements ITableLabelProvider,
ITableColorProvider, ITableFontProvider {
Font font = null;
public String getColumnText(Object element, int columnIndex) {
if (!(element instanceof File)) return null;
File file = (File)element;
switch (columnIndex) {
case 0:
return file.getName();
case 1:
return ""+new Date(file.lastModified());
case 2:
return ""+file.isHidden();
}
return null;
}
public Image getColumnImage(Object element, int columnIndex) {
if (columnIndex != 0) return null;
if (!(element instanceof File)) return null;
File file = (File)element;
Display display = Display.getCurrent();
if (file.isDirectory()) return
display.getSystemImage(SWT.ICON_WARNING);
return display.getSystemImage(SWT.ICON_QUESTION);
}
public void dispose() {
if (font != null) font.dispose();
font = null;
}
public boolean isLabelProperty(Object element, String
property) {
return false;
}
public void addListener(ILabelProviderListener listener) {
}
public void removeListener(ILabelProviderListener listener) {
}
public Color getForeground(Object element, int columnIndex) {
if (columnIndex == 1) {
Display display = Display.getCurrent();
return display.getSystemColor(SWT.COLOR_RED);
}
return null;
}
public Color getBackground(Object element, int columnIndex) {
if (columnIndex == 0) {
File file = (File)element;
Display display = Display.getCurrent();
if (file.isDirectory()) return
display.getSystemColor(SWT.COLOR_CYAN);
return
display.getSystemColor(SWT.COLOR_MAGENTA);
}
return null;
}
public Font getFont(Object element, int columnIndex) {
if (columnIndex == 2) {
if (font == null) {
Display display = Display.getCurrent();
font = new Font(display, "Times", 12,
SWT.ITALIC);
}
return font;
}
return null;
}
}
public static void main(String[] args) {
final Display display = new Display();
final Shell shell = new Shell(display);
shell.setLayout(new FormLayout());
TreeViewerTestLabelProvider labelProvider1 = new TreeViewerTest().new
TreeViewerTestLabelProvider();
ITreeContentProvider contentProvider = new ITreeContentProvider() {
public Object[] getChildren(Object parentElement) {
if (!(parentElement instanceof File)) return null;
File file = (File)parentElement;
if (file.isDirectory()) return file.listFiles();
return null;
}
public Object getParent(Object element) {
if (!(element instanceof File)) return null;
File file = (File)element;
return file.getParentFile();
}
public boolean hasChildren(Object element) {
if (!(element instanceof File)) return false;
File file = (File)element;
return file.isDirectory();
}
public Object[] getElements(Object inputElement) {
return getChildren(inputElement);
}
public void dispose() {
}
public void inputChanged(Viewer viewer, Object oldInput,
Object newInput) {
}
};
ILabelProvider labelProvider2 = new ILabelProvider() {
public void dispose() {
}
public boolean isLabelProperty(Object element, String
property) {
return false;
}
public void addListener(ILabelProviderListener listener) {
}
public void removeListener(ILabelProviderListener listener) {
}
public Image getImage(Object element) {
if (!(element instanceof File)) return null;
File file = (File)element;
if (file.isDirectory()) return
display.getSystemImage(SWT.ICON_WARNING);
return display.getSystemImage(SWT.ICON_QUESTION);
}
public String getText(Object element) {
if (!(element instanceof File)) return null;
File file = (File)element;
return file.getName();
}
};
final TreeViewer treeViewer1 = new TreeViewer(shell,
SWT.FULL_SELECTION | SWT.CHECK);
Tree tree1 = treeViewer1.getTree();
tree1.setHeaderVisible(true);
TreeColumn column1 = new TreeColumn(tree1, SWT.LEFT);
column1.setText("Name");
column1.setImage(display.getSystemImage(SWT.ICON_WORKING));
column1.setWidth(200);
TreeColumn column2 = new TreeColumn(tree1, SWT.CENTER);
column2.setText("Last Modified");
column2.setImage(display.getSystemImage(SWT.ICON_INFORMATION));
column2.setWidth(200);
TreeColumn column3 = new TreeColumn(tree1, SWT.CENTER);
column3.setText("Hidden");
column3.setImage(display.getSystemImage(SWT.ICON_INFORMATION));
column3.setWidth(100);
treeViewer1.setLabelProvider(labelProvider1);
treeViewer1.setContentProvider(contentProvider);
final TreeViewer treeViewer2 = new TreeViewer(shell);
Tree tree2 = treeViewer2.getTree();
treeViewer2.setLabelProvider(labelProvider2);
treeViewer2.setContentProvider(contentProvider);
Button b = new Button(shell, SWT.PUSH);
b.setText("choose root folder");
b.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event e) {
DirectoryDialog f = new DirectoryDialog(shell,
SWT.OPEN);
String root = f.open();
if (root != null) {
File file = new File(root);
if (file.exists()) {
treeViewer1.setInput(file);
treeViewer1.refresh();
treeViewer2.setInput(file);
treeViewer2.refresh();
}
}
}
});
FormData data = new FormData();
data.left = new FormAttachment(0, 10);
data.top = new FormAttachment(0, 10);
data.right = new FormAttachment(50, -5);
data.bottom = new FormAttachment(b, -10);
tree1.setLayoutData(data);
data = new FormData();
data.left = new FormAttachment(50, 5);
data.top = new FormAttachment(0, 10);
data.right = new FormAttachment(100, -10);
data.bottom = new FormAttachment(b, -10);
tree2.setLayoutData(data);
data = new FormData();
data.left = new FormAttachment(0, 10);
data.bottom = new FormAttachment(100, -10);
b.setLayoutData(data);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}