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antlr
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makes the UI dialog to save/restore its state - width, height, location on screen, the placement of splitter as well as viewer scale

This commit is contained in:
Pavlo V. Lysov 2015-02-02 20:56:18 +02:00
parent 66e275d164
commit f56a27bb4b
1 changed files with 52 additions and 15 deletions
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67
runtime/Java/src/org/antlr/v4/runtime/tree/gui/TreeViewer.java
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@ -36,7 +36,6 @@ import org.abego.treelayout.TreeLayout;
import org.abego.treelayout.util.DefaultConfiguration;
import org.antlr.v4.runtime.misc.GraphicsSupport;
import org.antlr.v4.runtime.misc.JFileChooserConfirmOverwrite;
import org.antlr.v4.runtime.misc.NotNull;
import org.antlr.v4.runtime.misc.Utils;
import org.antlr.v4.runtime.tree.ErrorNode;
import org.antlr.v4.runtime.tree.Tree;
@ -54,8 +53,7 @@ import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.TreePath;
import javax.swing.tree.TreeSelectionModel;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.*;
import java.awt.geom.CubicCurve2D;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
@ -68,6 +66,7 @@ import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.prefs.Preferences;
public class TreeViewer extends JComponent {
public static final Color LIGHT_RED = new Color(244, 213, 211);
@ -269,10 +268,19 @@ public class TreeViewer extends JComponent {
// ----------------------------------------------------------------------
private static final String DIALOG_WIDTH_PREFS_KEY = "dialog_width";
private static final String DIALOG_HEIGHT_PREFS_KEY = "dialog_height";
private static final String DIALOG_X_PREFS_KEY = "dialog_x";
private static final String DIALOG_Y_PREFS_KEY = "dialog_y";
private static final String DIALOG_DIVIDER_LOC_PREFS_KEY = "dialog_divider_location";
private static final String DIALOG_VIEWER_SCALE_PREFS_KEY = "dialog_slider_location";
protected static JDialog showInDialog(final TreeViewer viewer) {
final JDialog dialog = new JDialog();
dialog.setTitle("Parse Tree Inspector");
final Preferences prefs = Preferences.userNodeForPackage(TreeViewer.class);
// Make new content panes
final Container mainPane = new JPanel(new BorderLayout(5,5));
final Container contentPane = new JPanel(new BorderLayout(0,0));
@ -294,15 +302,14 @@ public class TreeViewer extends JComponent {
new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
dialog.setVisible(false);
dialog.dispose();
dialog.dispatchEvent(new WindowEvent(dialog, WindowEvent.WINDOW_CLOSING));
}
}
);
wrapper.add(ok);
// Add an export-to-png button right of the "OK" button
JButton png = new JButton("png");
JButton png = new JButton("Export as PNG");
png.addActionListener(
new ActionListener() {
@Override
@ -316,9 +323,12 @@ public class TreeViewer extends JComponent {
bottomPanel.add(wrapper, BorderLayout.SOUTH);
// Add scale slider
int sliderValue = (int) ((viewer.getScale()-1.0) * 1000);
final JSlider scaleSlider = new JSlider(JSlider.HORIZONTAL,
-999,1000,sliderValue);
double lastKnownViewerScale = prefs.getDouble(DIALOG_VIEWER_SCALE_PREFS_KEY, viewer.getScale());
viewer.setScale(lastKnownViewerScale);
int sliderValue = (int) ((lastKnownViewerScale - 1.0) * 1000);
final JSlider scaleSlider = new JSlider(JSlider.HORIZONTAL, -999, 1000, sliderValue);
scaleSlider.addChangeListener(
new ChangeListener() {
@Override
@ -362,7 +372,7 @@ public class TreeViewer extends JComponent {
treePanel.add(new JScrollPane(tree));
// Create the pane for both the JTree and the AST
JSplitPane splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,
final JSplitPane splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,
treePanel, contentPane);
mainPane.add(splitPane, BorderLayout.CENTER);
@ -370,14 +380,41 @@ public class TreeViewer extends JComponent {
dialog.setContentPane(mainPane);
// make viz
dialog.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
dialog.setPreferredSize(new Dimension(600, 500));
WindowListener exitListener = new WindowAdapter() {
public void windowClosing(WindowEvent e) {
prefs.putInt(DIALOG_WIDTH_PREFS_KEY, (int) dialog.getSize().getWidth());
prefs.putInt(DIALOG_HEIGHT_PREFS_KEY, (int) dialog.getSize().getHeight());
prefs.putDouble(DIALOG_X_PREFS_KEY, dialog.getLocationOnScreen().getX());
prefs.putDouble(DIALOG_Y_PREFS_KEY, dialog.getLocationOnScreen().getY());
prefs.putInt(DIALOG_DIVIDER_LOC_PREFS_KEY, splitPane.getDividerLocation());
prefs.putDouble(DIALOG_VIEWER_SCALE_PREFS_KEY, viewer.getScale());
dialog.setVisible(false);
dialog.dispose();
}
};
dialog.addWindowListener(exitListener);
dialog.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
int width = prefs.getInt(DIALOG_WIDTH_PREFS_KEY, 600);
int height = prefs.getInt(DIALOG_HEIGHT_PREFS_KEY, 500);
dialog.setPreferredSize(new Dimension(width, height));
dialog.pack();
// After pack(): set the divider at 1/3 of the frame.
splitPane.setDividerLocation(0.33);
// After pack(): set the divider at 1/3 (200/600) of the frame.
int dividerLocation = prefs.getInt(DIALOG_DIVIDER_LOC_PREFS_KEY, 200);
splitPane.setDividerLocation(dividerLocation);
if (prefs.getDouble(DIALOG_X_PREFS_KEY, -1) != -1) {
dialog.setLocation(
(int)prefs.getDouble(DIALOG_X_PREFS_KEY, 100),
(int)prefs.getDouble(DIALOG_Y_PREFS_KEY, 100)
);
}
else {
dialog.setLocationRelativeTo(null);
}
dialog.setLocationRelativeTo(null);
dialog.setVisible(true);
return dialog;
}