diff options
Diffstat (limited to 'examples/org.eclipse.swt.examples.launcher/org/eclipse/swt/examples/launcher/LauncherView.java')
| -rwxr-xr-x | examples/org.eclipse.swt.examples.launcher/org/eclipse/swt/examples/launcher/LauncherView.java | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/examples/org.eclipse.swt.examples.launcher/org/eclipse/swt/examples/launcher/LauncherView.java b/examples/org.eclipse.swt.examples.launcher/org/eclipse/swt/examples/launcher/LauncherView.java new file mode 100755 index 0000000000..cdca531fdc --- /dev/null +++ b/examples/org.eclipse.swt.examples.launcher/org/eclipse/swt/examples/launcher/LauncherView.java @@ -0,0 +1,222 @@ +package org.eclipse.swt.examples.launcher;
+
+/*
+ * (c) Copyright IBM Corp. 2000, 2001.
+ * All Rights Reserved
+ */
+
+import java.net.*;
import org.eclipse.jface.dialogs.*;
import org.eclipse.swt.*;
import org.eclipse.swt.events.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;
import org.eclipse.ui.part.*;
+
+/**
+ * Launcher uses <code>org.eclipse.swt</code> and <code>org.eclipse.core</code>
+ * to launch the other registered examples.
+ *
+ * @see ViewPart
+ */
+public class LauncherView extends ViewPart {
+ private Shell workbenchShell;
+
+ private Tree launchTree;
+ private Text descriptionText;
+ private Button importButton;
+ private Button runButton;
+
+ /**
+ * Constructs a LauncherView.
+ */
+ public LauncherView() {
+ LauncherPlugin.initResources();
+ }
+
+ /**
+ * Creates the example.
+ *
+ * @see ViewPart#createPartControl
+ */
+ public void createPartControl(Composite parent) {
+ workbenchShell = getSite().getShell();
+ parent.setLayout(new SplitLayout());
+
+ Group launchGroup = new Group(parent, SWT.NULL);
+ launchGroup.setText(LauncherPlugin.getResourceString("view.launchGroup.text"));
+
+ GridLayout gridLayout = new GridLayout();
+ gridLayout.numColumns = 2;
+ launchGroup.setLayout(gridLayout);
+
+ launchTree = new Tree(launchGroup, SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
+ GridData gridData = new GridData(GridData.FILL_HORIZONTAL | GridData.FILL_VERTICAL);
+ gridData.horizontalSpan = 2;
+ launchTree.setLayoutData(gridData);
+ launchTree.addSelectionListener(new SelectionListener() {
+ public void widgetSelected(SelectionEvent event) {
+ final ItemDescriptor item = getSelectedItem();
+ setDescriptionByItem(item);
+ }
+ public void widgetDefaultSelected(SelectionEvent event) {
+ final ItemDescriptor item = getSelectedItem();
+ setDescriptionByItem(item);
+ runItem(getSelectedItem());
+ }
+ });
+ launchTree.addTreeListener(new TreeListener() {
+ public void treeCollapsed(TreeEvent event) {
+ final TreeItem item = (TreeItem) event.item;
+ if (item == null) return;
+ item.setImage(LauncherPlugin.images[LauncherPlugin.liClosedFolder]);
+ }
+ public void treeExpanded(TreeEvent event) {
+ final TreeItem item = (TreeItem) event.item;
+ if (item == null) return;
+ item.setImage(LauncherPlugin.images[LauncherPlugin.liOpenFolder]);
+ }
+ });
+
+ runButton = new Button(launchGroup, SWT.PUSH);
+ runButton.setText(LauncherPlugin.getResourceString("view.launchButton.text"));
+ runButton.addSelectionListener(new SelectionListener() {
+ public void widgetSelected(SelectionEvent event) {
+ runItem(getSelectedItem());
+ }
+ public void widgetDefaultSelected(SelectionEvent event) {
+ }
+ });
+
+ importButton = new Button(launchGroup, SWT.PUSH);
+ importButton.setText(LauncherPlugin.getResourceString("view.importButton.text"));
+ importButton.addSelectionListener(new SelectionListener() {
+ public void widgetSelected(SelectionEvent event) {
+ importItem(getSelectedItem());
+ }
+ public void widgetDefaultSelected(SelectionEvent event) {
+ }
+ });
+
+
+ Group descriptionGroup = new Group(parent, SWT.NULL);
+ descriptionGroup.setText(LauncherPlugin.getResourceString("view.descriptionGroup.text"));
+ descriptionGroup.setLayout(new FillLayout());
+
+ descriptionText = new Text(descriptionGroup, SWT.MULTI | SWT.BORDER |
+ SWT.WRAP | SWT.V_SCROLL | SWT.READ_ONLY);
+
+ setDescriptionByItem(null);
+ setItemDescriptors(LauncherPlugin.getLaunchItemTree());
+ }
+
+ /**
+ * Called when we must grab focus.
+ *
+ * @see org.eclipse.ui.part.ViewPart#setFocus
+ */
+ public void setFocus() {
+ launchTree.setFocus();
+ runButton.getShell().setDefaultButton(runButton);
+ }
+
+ /**
+ * Installs a new launch list.
+ *
+ * @param newRoot the new tree of launch items for the UI
+ */
+ public void setItemDescriptors(final ItemTreeNode newRoot) {
+ if (workbenchShell == null) return;
+ workbenchShell.getDisplay().syncExec(new Runnable() {
+ public void run() {
+ if ((launchTree == null) || (launchTree.isDisposed())) return;
+ launchTree.removeAll();
+
+ for (ItemTreeNode node = newRoot.getFirstChild(); node != null;
+ node = node.getNextSibling()) {
+ doNode(node, new TreeItem(launchTree, SWT.NONE)); // top-level TreeItem
+ }
+ }
+ private void addGroup(TreeItem parent, ItemTreeNode node) {
+ for (;node != null; node = node.getNextSibling()) {
+ doNode(node, new TreeItem(parent, SWT.NONE)); // TreeItem at depth > 0
+ }
+ }
+ private void doNode(ItemTreeNode node, TreeItem treeItem) {
+ final ItemDescriptor item = node.getDescriptor();
+ treeItem.setText(item.getName());
+ treeItem.setData(item);
+ if (node.getDescriptor().isFolder()) {
+ treeItem.setExpanded(false);
+ treeItem.setImage(LauncherPlugin.images[LauncherPlugin.liClosedFolder]);
+ } else {
+ treeItem.setImage(node.getDescriptor().getIcon());
+ }
+ addGroup(treeItem, node.getFirstChild());
+ }
+ });
+ }
+
+ /**
+ * Runs the specified launch item.
+ *
+ * @param itemDescriptor the launch item to execute
+ */
+ private void runItem(final ItemDescriptor itemDescriptor) {
+ if ((workbenchShell == null) || (itemDescriptor == null)) return;
+ final LaunchDelegate launchDelegate = itemDescriptor.getLaunchDelegate();
+ if (launchDelegate == null) return;
+
+ boolean result = launchDelegate.launch(this);
+ if (! result) {
+ MessageDialog.openError(workbenchShell,
+ LauncherPlugin.getResourceString("dialog.RunProgramProblems.title"),
+ LauncherPlugin.getResourceString("dialog.RunProgramErrorCheckLog.message",
+ new Object[] { itemDescriptor.getName() }));
+ }
+ }
+
+ /**
+ * Imports the specified launch item into the workspace.
+ *
+ * @param itemDescriptor the launch item to import.
+ */
+ private void importItem(final ItemDescriptor itemDescriptor) {
+ if ((workbenchShell == null) || (itemDescriptor == null)) return;
+
+ URL sourceUrl = itemDescriptor.getSourceCodePath();
+ if (sourceUrl == null) return; // oops! can't do that!
+
+ ImportProjectTask task = new ImportProjectTask(workbenchShell, itemDescriptor.getName(),
+ sourceUrl);
+ boolean success = task.execute();
+ task.dispose();
+ }
+ /**
+ * Obtains the selected launch item.
+ *
+ * @return the currently selected ItemDescriptor
+ */
+ private ItemDescriptor getSelectedItem() {
+ final TreeItem[] selections = launchTree.getSelection();
+ if (selections.length == 0) return null;
+ final ItemDescriptor itemDescriptor = (ItemDescriptor) selections[0].getData();
+ return itemDescriptor;
+ }
+
+ /**
+ * Sets the currently visible description text to reflect that of a particular ItemDescriptor.
+ *
+ * @param itemDescriptor the launch item whose description is to be displayed, or null if none
+ */
+ private void setDescriptionByItem(ItemDescriptor itemDescriptor) {
+ String description;
+ if (itemDescriptor == null) {
+ description = LauncherPlugin.getResourceString("launchitem.Null.description");
+ if (runButton != null) runButton.setEnabled(false);
+ if (importButton != null) importButton.setEnabled(false);
+ } else {
+ description = itemDescriptor.getDescription();
+ if (description == null)
+ description = LauncherPlugin.getResourceString("launchitem.Missing.description");
+
+ if (runButton != null) runButton.setEnabled(itemDescriptor.getLaunchDelegate() != null);
+ if (importButton != null) importButton.setEnabled(itemDescriptor.getSourceCodePath() != null);
+ }
+ descriptionText.setText(description);
+ }
+}
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