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Move "png" button to the right of "OK", refactor export action to its own method

This commit is contained in:
Terence Parr 2013-03-06 15:20:30 -06:00 committed by Sam Harwell
parent 82a00104f6
commit 347375ec04
1 changed files with 37 additions and 31 deletions
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66
runtime/Java/src/org/antlr/v4/runtime/tree/gui/TreeViewer.java
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@ -299,36 +299,6 @@ public class TreeViewer extends JComponent {
JPanel wrapper = new JPanel(new FlowLayout());
// Add an export-to-png button left of the "OK" button
JButton png = new JButton("png");
png.addActionListener(
new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
BufferedImage bi = new BufferedImage(viewer.getSize().width,
viewer.getSize().height, BufferedImage.TYPE_INT_ARGB);
Graphics g = bi.createGraphics();
viewer.paint(g);
g.dispose();
try{
File pngFile = new File("antlrv4_parse_tree_" +
System.currentTimeMillis() + ".png");
ImageIO.write(bi, "png", pngFile);
JOptionPane.showMessageDialog(dialog,
"Saved PNG to: " + pngFile.getAbsolutePath());
} catch (Exception ex) {
JOptionPane.showMessageDialog(dialog,
"Could not export to PNG: " + ex.getMessage(),
"Error",
JOptionPane.ERROR_MESSAGE);
ex.printStackTrace();
}
}
}
);
wrapper.add(png);
// Add button to bottom
JPanel bottomPanel = new JPanel(new BorderLayout(0,0));
contentPane.add(bottomPanel, BorderLayout.SOUTH);
@ -345,6 +315,18 @@ public class TreeViewer extends JComponent {
);
wrapper.add(ok);
// Add an export-to-png button right of the "OK" button
JButton png = new JButton("png");
png.addActionListener(
new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
generatePNGFile(viewer, dialog);
}
}
);
wrapper.add(png);
bottomPanel.add(wrapper, BorderLayout.SOUTH);
// Add scale slider
@ -370,6 +352,30 @@ public class TreeViewer extends JComponent {
return dialog;
}
private static void generatePNGFile(TreeViewer viewer, JDialog dialog) {
BufferedImage bi = new BufferedImage(viewer.getSize().width,
viewer.getSize().height,
BufferedImage.TYPE_INT_ARGB);
Graphics g = bi.createGraphics();
viewer.paint(g);
g.dispose();
try{
File pngFile = new File("antlrv4_parse_tree_" +
System.currentTimeMillis() + ".png");
ImageIO.write(bi, "png", pngFile);
JOptionPane.showMessageDialog(dialog,
"Saved PNG to: " + pngFile.getAbsolutePath());
}
catch (Exception ex) {
JOptionPane.showMessageDialog(dialog,
"Could not export to PNG: " + ex.getMessage(),
"Error",
JOptionPane.ERROR_MESSAGE);
ex.printStackTrace();
}
}
private Dimension getScaledTreeSize() {
Dimension scaledTreeSize =
treeLayout.getBounds().getBounds().getSize();