diff options
| -rw-r--r-- | src/compiler/scala/tools/nsc/ast/TreeBrowsers.scala | 126 |
1 files changed, 111 insertions, 15 deletions
diff --git a/src/compiler/scala/tools/nsc/ast/TreeBrowsers.scala b/src/compiler/scala/tools/nsc/ast/TreeBrowsers.scala index 8fd0017b81..613928856d 100644 --- a/src/compiler/scala/tools/nsc/ast/TreeBrowsers.scala +++ b/src/compiler/scala/tools/nsc/ast/TreeBrowsers.scala @@ -31,6 +31,9 @@ abstract class TreeBrowsers { import global._ import nme.EMPTY + val borderSize = 10 + + def create(): SwingBrowser = new SwingBrowser(); /** Pseudo tree class, so that all JTree nodes are treated uniformly */ @@ -93,37 +96,38 @@ abstract class TreeBrowsers { listeners = l :: listeners /** Return the index'th child of parent */ - def getChild(parent: Any, index: Int): AnyRef = + def getChild(parent: AnyRef, index: Int): AnyRef = packChildren(parent)(index) /** Return the number of children this 'parent' has */ - def getChildCount(parent: Any): Int = + def getChildCount(parent: AnyRef): Int = packChildren(parent).length /** Return the index of the given child */ - def getIndexOfChild(parent: Any, child: Any): Int = + def getIndexOfChild(parent: AnyRef, child: AnyRef): Int = packChildren(parent) indexOf child /** Return the root node */ def getRoot(): AnyRef = program /** Test whether the given node is a leaf */ - def isLeaf(node: Any): Boolean = packChildren(node).isEmpty + def isLeaf(node: AnyRef): Boolean = packChildren(node).isEmpty def removeTreeModelListener(l: TreeModelListener): Unit = listeners = listeners filterNot (_ == l) /** we ignore this message for now */ - def valueForPathChanged(path: TreePath, newValue: Any) = () + def valueForPathChanged(path: TreePath, newValue: AnyRef) = () /** * Return a list of children for the given node. */ - def packChildren(t: Any): List[AnyRef] = - TreeInfo.children(t.asInstanceOf[Tree]) + def packChildren(t: AnyRef): List[AnyRef] = TreeInfo.children(t.asInstanceOf[Tree]) } + + /** * A window that can host the Tree widget and provide methods for * displaying information @@ -132,16 +136,45 @@ abstract class TreeBrowsers { * @version 1.0 */ class BrowserFrame(phaseName: String = "unknown") { - val frame = new JFrame("Scala AST [" + phaseName + "]") + try { + UIManager.setLookAndFeel("com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel") + } + catch { + case _ => UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName()) + } + + val frame = new JFrame("Scala AST after " + phaseName + " phase") + frame.setJMenuBar(new ASTMenuBar()) val topLeftPane = new JPanel(new BorderLayout()) val topRightPane = new JPanel(new BorderLayout()) val bottomPane = new JPanel(new BorderLayout()) var splitPane: JSplitPane = _ - var treeModel: TreeModel = _ - + var treeModel: ASTTreeModel = _ + var jTree: JTree = _ val textArea: JTextArea = new JTextArea(30, 120) + textArea.setBorder(BorderFactory.createEmptyBorder(borderSize, borderSize, borderSize, borderSize)) + val infoPanel = new TextInfoPanel() + + private def setExpansionState(root: JTree, expand: Boolean): Unit = { + def _setExpansionState(root: JTree, path: TreePath): Unit = { + val last = path.getLastPathComponent + for (i <- 0 until root.getModel.getChildCount(last)) { + val child = root.getModel.getChild(last, i) + val childPath = path pathByAddingChild child + _setExpansionState(root, childPath) + } + if (expand) {jTree expandPath path} + else {jTree collapsePath path} + } + _setExpansionState(root, new TreePath(root.getModel.getRoot)) + } + + def expandAll(subtree: JTree) = setExpansionState(subtree, true) + def collapseAll(subtree: JTree) = setExpansionState(subtree, false) + + /** Create a frame that displays the AST. * * @param lock The lock is used in order to stop the compilation thread @@ -160,7 +193,7 @@ abstract class TreeBrowsers { override def windowClosed(e: WindowEvent): Unit = lock.release }); - val tree = new JTree(treeModel) { + jTree = new JTree(treeModel) { /** Return the string for a tree node. */ override def convertValueToText(value: Any, sel: Boolean, exp: Boolean, leaf: Boolean, @@ -173,7 +206,7 @@ abstract class TreeBrowsers { } } - tree.addTreeSelectionListener(new javax.swing.event.TreeSelectionListener() { + jTree.addTreeSelectionListener(new javax.swing.event.TreeSelectionListener() { def valueChanged(e: javax.swing.event.TreeSelectionEvent): Unit = { textArea.setText(e.getPath().getLastPathComponent().toString()) infoPanel.update(e.getPath().getLastPathComponent()) @@ -183,9 +216,10 @@ abstract class TreeBrowsers { val topSplitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, topLeftPane, topRightPane) topSplitPane.setResizeWeight(0.5) - topLeftPane.add(new JScrollPane(tree), BorderLayout.CENTER) + jTree.setBorder( + BorderFactory.createEmptyBorder(borderSize, borderSize, borderSize, borderSize)) + topLeftPane.add(new JScrollPane(jTree), BorderLayout.CENTER) topRightPane.add(new JScrollPane(infoPanel), BorderLayout.CENTER) - bottomPane.add(new JScrollPane(textArea), BorderLayout.CENTER) textArea.setFont(new Font("monospaced", Font.PLAIN, 14)) textArea.setEditable(false) @@ -196,7 +230,67 @@ abstract class TreeBrowsers { frame.setVisible(true) } - def setTreeModel(tm: TreeModel): Unit = treeModel = tm + class ASTMenuBar extends JMenuBar { + val menuKey = Toolkit.getDefaultToolkit().getMenuShortcutKeyMask() + val shiftKey = InputEvent.SHIFT_MASK + val jmFile = new JMenu("File") + // val jmiSaveImage = new JMenuItem( + // new AbstractAction("Save Tree Image") { + // putValue(Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke(KeyEvent.VK_S, menuKey, false)) + // override def actionPerformed(e: ActionEvent) { + // //TODO + // } + // } + // ) + + // jmFile add jmiSaveImage + + def closeWindow() = frame.getToolkit().getSystemEventQueue().postEvent( + new WindowEvent(frame, WindowEvent.WINDOW_CLOSING)) + + val jmiCancel = new JMenuItem ( + new AbstractAction("Cancel Compilation") { + putValue(Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke(KeyEvent.VK_Q, menuKey + shiftKey, false)) + override def actionPerformed(e: ActionEvent) { + closeWindow() + global.currentRun.cancel + } + } + ) + jmFile add jmiCancel + + val jmiExit = new JMenuItem ( + new AbstractAction("Exit") { + putValue(Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke(KeyEvent.VK_Q, menuKey, false)) + override def actionPerformed(e: ActionEvent) = closeWindow() + } + ) + jmFile add jmiExit + add(jmFile) + + val jmView = new JMenu("View") + val jmiExpand = new JMenuItem( + new AbstractAction("Expand All Nodes") { + putValue(Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke(KeyEvent.VK_E, menuKey, false)) + override def actionPerformed(e: ActionEvent) { + expandAll(jTree) + } + } + ) + jmView add jmiExpand + val jmiCollapse = new JMenuItem( + new AbstractAction("Collapse All Nodes") { + putValue(Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke(KeyEvent.VK_L, menuKey, false)) + override def actionPerformed(e: ActionEvent) { + collapseAll(jTree) + } + } + ) + jmView add jmiCollapse + add(jmView) + } + + def setTreeModel(tm: ASTTreeModel): Unit = treeModel = tm } /** @@ -204,6 +298,8 @@ abstract class TreeBrowsers { */ class TextInfoPanel extends JTextArea(20, 50) { + setBorder(BorderFactory.createEmptyBorder(borderSize, borderSize, borderSize, borderSize)) + setEditable(false) setFont(new Font("monospaced", Font.PLAIN, 12)) def update(v: AnyRef): Unit = { |