private void updateTemplateFromEditor(PrintfTemplate template) {
ArrayList params = new ArrayList();
String format = null;
int text_length = editorPane.getDocument().getLength();
try {
format = editorPane.getDocument().getText(0, text_length);
} catch (BadLocationException ex1) {
}
Element section_el = editorPane.getDocument().getDefaultRootElement();
// Get number of paragraphs.
int num_para = section_el.getElementCount();
for (int p_count = 0; p_count < num_para; p_count++) {
Element para_el = section_el.getElement(p_count);
// Enumerate the content elements
int num_cont = para_el.getElementCount();
for (int c_count = 0; c_count < num_cont; c_count++) {
Element content_el = para_el.getElement(c_count);
AttributeSet attr = content_el.getAttributes();
// Get the name of the style applied to this content element; may be null
String sn = (String) attr.getAttribute(StyleConstants.NameAttribute);
// Check if style name match
if (sn != null && sn.startsWith("Parameter")) {
// we extract the label.
JLabel l = (JLabel) StyleConstants.getComponent(attr);
if (l != null) {
params.add(l.getName());
}
}
}
}
template.setFormat(format);
template.setTokens(params);
}
/*
* We need to know if the caret is currently positioned on the line we
* are about to paint so the line number can be highlighted.
*/
private boolean isCurrentLine(int rowStartOffset) {
int caretPosition = component.getCaretPosition();
Element root = component.getDocument().getDefaultRootElement();
if (root.getElementIndex(rowStartOffset) == root.getElementIndex(caretPosition)) return true;
else return false;
}
public void parseChildren(Element e) {
try {
NodeList nl = e.getChildNodes();
for (int i = 0; i < nl.getLength(); i++) {
// parse Elements only
if ((nl.item(i).getNodeType() == Node.ELEMENT_NODE)) {
Element elm = (Element) nl.item(i);
String tag = elm.getTagName();
if (tag.equals("canvas")) {
parseChildren(elm);
} else if (tag.equals("label")) {
parseLabel(elm);
} else if (tag.equals("textfield")) {
parseTextField(elm);
} else if (tag.equals("button")) {
parseButton(elm);
} else if (tag.equals("textarea")) {
parseTextArea(elm);
} else if (tag.equals("progressbar")) {
parseProgressBar(elm);
}
}
}
} catch (Exception ex) {
ex.printStackTrace();
}
}
/*
* Get the line number to be drawn. The empty string will be returned
* when a line of text has wrapped.
*/
protected String getTextLineNumber(int rowStartOffset) {
Element root = component.getDocument().getDefaultRootElement();
int index = root.getElementIndex(rowStartOffset);
Element line = root.getElement(index);
if (line.getStartOffset() == rowStartOffset) return String.valueOf(index + 1);
else return "";
}
//
// Implement CaretListener interface
//
@Override
public void caretUpdate(CaretEvent e) {
// Get the line the caret is positioned on
int caretPosition = component.getCaretPosition();
Element root = component.getDocument().getDefaultRootElement();
int currentLine = root.getElementIndex(caretPosition);
// Need to repaint so the correct line number can be highlighted
if (lastLine != currentLine) {
repaint();
lastLine = currentLine;
}
}
public void caretUpdate(CaretEvent e) {
// when the cursor moves on _textView
// this method will be called. Then, we
// must determine what the line number is
// and update the line number view
Element root = textView.getDocument().getDefaultRootElement();
int line = root.getElementIndex(e.getDot());
root = root.getElement(line);
int col = root.getElementIndex(e.getDot());
lineNumberView.setText(line + ":" + col);
// if text is selected then enable copy and cut
boolean isSelection = e.getDot() != e.getMark();
copyAction.setEnabled(isSelection);
cutAction.setEnabled(isSelection);
}
public void parseAttributes(Element elm, JComponent comp) {
String enabled = elm.getAttribute("enabled");
if (enabled != null) {
comp.setEnabled(!enabled.equals("false"));
}
String id = elm.getAttribute("id");
if (id.length() > 0) {
components.put(id, comp);
comp.setName(id);
}
String tooltip = elm.getAttribute("tooltip");
if (tooltip.length() > 0) {
comp.setToolTipText(tooltip);
}
}
void editorPane_keyPressed(KeyEvent e) {
StyledDocument doc = editorPane.getStyledDocument();
int pos = editorPane.getCaretPosition();
int code = e.getKeyCode();
Element el;
switch (code) {
case KeyEvent.VK_BACK_SPACE:
case KeyEvent.VK_DELETE:
case KeyEvent.VK_LEFT:
case KeyEvent.VK_KP_LEFT:
if (pos == 0) return;
// we want to get the element to the left of position.
el = doc.getCharacterElement(pos - 1);
break;
case KeyEvent.VK_RIGHT:
case KeyEvent.VK_KP_RIGHT:
// we want to get the element to the right of position.
el = doc.getCharacterElement(pos + 1);
break;
default:
return; // bail we don't handle it.
}
AttributeSet attr = el.getAttributes();
String el_name = (String) attr.getAttribute(StyleConstants.NameAttribute);
int el_range = el.getEndOffset() - el.getStartOffset() - 1;
if (el_name.startsWith("Parameter") && StyleConstants.getComponent(attr) != null) {
try {
switch (code) {
case KeyEvent.VK_BACK_SPACE:
case KeyEvent.VK_DELETE:
doc.remove(el.getStartOffset(), el_range);
break;
case KeyEvent.VK_LEFT:
case KeyEvent.VK_KP_LEFT:
editorPane.setCaretPosition(pos - el_range);
break;
case KeyEvent.VK_RIGHT:
case KeyEvent.VK_KP_RIGHT:
editorPane.setCaretPosition(pos + (el_range));
break;
}
} catch (BadLocationException ex) {
}
}
}
/** Calculate the width needed to display the maximum line number */
private void setPreferredWidth() {
Element root = component.getDocument().getDefaultRootElement();
int lines = root.getElementCount();
int digits = Math.max(String.valueOf(lines).length(), minimumDisplayDigits);
// Update sizes when number of digits in the line number changes
if (lastDigits != digits) {
lastDigits = digits;
FontMetrics fontMetrics = getFontMetrics(getFont());
int width = fontMetrics.charWidth('0') * digits;
Insets insets = getInsets();
int preferredWidth = insets.left + insets.right + width;
Dimension d = getPreferredSize();
d.setSize(preferredWidth, HEIGHT);
setPreferredSize(d);
setSize(d);
}
}
public void parseBorder(JComponent c, Element elm) {
if (elm.getTagName().equals("border")) {
String type = elm.getAttribute("type");
if (type.equals("empty")) {
c.setBorder(new EmptyBorder(2, 2, 2, 2));
} else if (type.equals("titled")) {
String title = elm.getAttribute("title");
c.setBorder(new TitledBorder(title));
} else if (type.equals("beveled")) {
int btype = Integer.parseInt(elm.getAttribute("bevel"));
c.setBorder(new BevelBorder(btype));
}
} else {
NodeList nl = elm.getElementsByTagName("border");
for (int n = 0; n < nl.getLength(); n++) {
parseBorder(c, (Element) nl.item(n));
}
}
}
public void parseButton(Element elm) {
JButton btn = new JButton();
String title = elm.getAttribute("title");
if (title != null) {
btn.setText(title);
}
SpazPosition lp = parseSpazPosition(elm);
if (lp == null) {
return;
}
this.add(btn, lp);
parseBorder(btn, elm);
parseAttributes(elm, btn);
String action = elm.getAttribute("action");
if (action.length() > 0) {
actions.put(btn, action);
btn.addActionListener(this);
}
}
public SpazPosition parseSpazPosition(Element elm) {
if (elm.getTagName().equals("position")) {
SpazPosition lp = new SpazPosition();
double left_rel = Double.parseDouble(elm.getAttribute("left_rel"));
double right_rel = Double.parseDouble(elm.getAttribute("right_rel"));
double top_rel = Double.parseDouble(elm.getAttribute("top_rel"));
double bottom_rel = Double.parseDouble(elm.getAttribute("bottom_rel"));
int left_abs = Integer.parseInt(elm.getAttribute("left_abs"));
int right_abs = Integer.parseInt(elm.getAttribute("right_abs"));
int top_abs = Integer.parseInt(elm.getAttribute("top_abs"));
int bottom_abs = Integer.parseInt(elm.getAttribute("bottom_abs"));
lp.setHPos(left_rel, left_abs, right_rel, right_abs);
lp.setVPos(top_rel, top_abs, bottom_rel, bottom_abs);
return lp;
} else {
NodeList nl = elm.getElementsByTagName("position");
for (int n = 0; n < nl.getLength(); n++) {
SpazPosition lp = parseSpazPosition((Element) (nl.item(n)));
return lp;
}
}
return null;
}
public void parseLabel(Element elm) {
JLabel label = new JLabel();
String title = elm.getAttribute("title");
if (title != null) {
label.setText(title);
}
SpazPosition lp = parseSpazPosition(elm);
if (lp == null) {
return;
}
this.add(label, lp);
parseBorder(label, elm);
parseAttributes(elm, label);
}
/*
* Determine the Y offset for the current row
*/
private int getOffsetY(int rowStartOffset, FontMetrics fontMetrics) throws BadLocationException {
// Get the bounding rectangle of the row
Rectangle r = component.modelToView(rowStartOffset);
int lineHeight = fontMetrics.getHeight();
int y = r.y + r.height;
int descent = 0;
// The text needs to be positioned above the bottom of the bounding
// rectangle based on the descent of the font(s) contained on the row.
if (r.height == lineHeight) {
// default font is being used
descent = fontMetrics.getDescent();
} else {
// We need to check all the attributes for font changes
if (fonts == null) {
fonts = new HashMap<String, FontMetrics>();
}
Element root = component.getDocument().getDefaultRootElement();
int index = root.getElementIndex(rowStartOffset);
Element line = root.getElement(index);
for (int i = 0; i < line.getElementCount(); i++) {
Element child = line.getElement(i);
AttributeSet as = child.getAttributes();
String fontFamily = (String) as.getAttribute(StyleConstants.FontFamily);
Integer fontSize = (Integer) as.getAttribute(StyleConstants.FontSize);
String key = fontFamily + fontSize;
FontMetrics fm = fonts.get(key);
if (fm == null) {
Font font = new Font(fontFamily, Font.PLAIN, fontSize);
fm = component.getFontMetrics(font);
fonts.put(key, fm);
}
descent = Math.max(descent, fm.getDescent());
}
}
return y - descent;
}
