/**
* Provides a way to determine the next visually represented model location at which one might
* place a caret. Some views may not be visible, they might not be in the same order found in the
* model, or they just might not allow access to some of the locations in the model.
*
* @param pos the position to convert >= 0
* @param a the allocated region in which to render
* @param direction the direction from the current position that can be thought of as the arrow
* keys typically found on a keyboard. This will be one of the following values:
* <ul>
* <li>SwingConstants.WEST
* <li>SwingConstants.EAST
* <li>SwingConstants.NORTH
* <li>SwingConstants.SOUTH
* </ul>
*
* @return the location within the model that best represents the next location visual position
* @exception BadLocationException
* @exception IllegalArgumentException if <code>direction</code> doesn't have one of the legal
* values above
*/
public int getNextVisualPositionFrom(
int pos, Position.Bias b, Shape a, int direction, Position.Bias[] biasRet)
throws BadLocationException {
biasRet[0] = Position.Bias.Forward;
switch (direction) {
case NORTH:
case SOUTH:
{
if (pos == -1) {
pos = (direction == NORTH) ? Math.max(0, getEndOffset() - 1) : getStartOffset();
break;
}
JTextComponent target = (JTextComponent) getContainer();
Caret c = (target != null) ? target.getCaret() : null;
// YECK! Ideally, the x location from the magic caret position
// would be passed in.
Point mcp;
if (c != null) {
mcp = c.getMagicCaretPosition();
} else {
mcp = null;
}
int x;
if (mcp == null) {
Rectangle loc = target.modelToView(pos);
x = (loc == null) ? 0 : loc.x;
} else {
x = mcp.x;
}
if (direction == NORTH) {
pos = Utilities.getPositionAbove(target, pos, x);
} else {
pos = Utilities.getPositionBelow(target, pos, x);
}
}
break;
case WEST:
if (pos == -1) {
pos = Math.max(0, getEndOffset() - 1);
} else {
pos = Math.max(0, pos - 1);
}
break;
case EAST:
if (pos == -1) {
pos = getStartOffset();
} else {
pos = Math.min(pos + 1, getDocument().getLength());
}
break;
default:
throw new IllegalArgumentException("Bad direction: " + direction);
}
return pos;
}
/**
* Converts an offset in a line into an x co-ordinate. This is a fast version that should only be
* used if no changes were made to the text since the last repaint.
*
* @param line The line
* @param offset The offset, from the start of the line
*/
public int _offsetToX(int line, int offset) {
TokenMarker tokenMarker = getTokenMarker();
/* Use painter's cached info for speed */
FontMetrics fm = painter.getFontMetrics();
getLineText(line, lineSegment);
int segmentOffset = lineSegment.offset;
int x = horizontalOffset;
/* If syntax coloring is disabled, do simple translation */
if (tokenMarker == null) {
lineSegment.count = offset;
return x + Utilities.getTabbedTextWidth(lineSegment, fm, x, painter, 0);
}
/* If syntax coloring is enabled, we have to do this because
* tokens can vary in width */
else {
Token tokens;
if (painter.currentLineIndex == line && painter.currentLineTokens != null)
tokens = painter.currentLineTokens;
else {
painter.currentLineIndex = line;
tokens = painter.currentLineTokens = tokenMarker.markTokens(lineSegment, line);
}
Toolkit toolkit = painter.getToolkit();
Font defaultFont = painter.getFont();
SyntaxStyle[] styles = painter.getStyles();
for (; ; ) {
byte id = tokens.id;
if (id == Token.END) {
return x;
}
if (id == Token.NULL) fm = painter.getFontMetrics();
else fm = styles[id].getFontMetrics(defaultFont);
int length = tokens.length;
if (offset + segmentOffset < lineSegment.offset + length) {
lineSegment.count = offset - (lineSegment.offset - segmentOffset);
return x + Utilities.getTabbedTextWidth(lineSegment, fm, x, painter, 0);
} else {
lineSegment.count = length;
x += Utilities.getTabbedTextWidth(lineSegment, fm, x, painter, 0);
lineSegment.offset += length;
}
tokens = tokens.next;
}
}
}
private void end(StringBuilder ans, Pretty pretty, String indent) {
if (endEncloser == null) return;
if (!pretty.pretty) ans.append(endEncloser);
else {
Utilities.assureEndsWithNewLine(ans);
ans.append(indent + endEncloser);
if (pretty.comments && endComment.length() > 0) ans.append("#" + endComment);
Utilities.assureEndsWithNewLine(ans);
}
}
/**
* Determines the preferred span for this view along an axis.
*
* @param axis may be either View.X_AXIS or View.Y_AXIS
* @return the span the view would like to be rendered into >= 0. Typically the view is told to
* render into the span that is returned, although there is no guarantee. The parent may
* choose to resize or break the view.
*/
public float getPreferredSpan(int axis) {
switch (axis) {
case View.X_AXIS:
Segment buff = SegmentCache.getSharedSegment();
Document doc = getDocument();
int width;
try {
FontMetrics fm = getFontMetrics();
doc.getText(0, doc.getLength(), buff);
width = Utilities.getTabbedTextWidth(buff, fm, 0, this, 0);
if (buff.count > 0) {
Component c = getContainer();
firstLineOffset =
sun.swing.SwingUtilities2.getLeftSideBearing(
(c instanceof JComponent) ? (JComponent) c : null, fm, buff.array[buff.offset]);
firstLineOffset = Math.max(0, -firstLineOffset);
} else {
firstLineOffset = 0;
}
} catch (BadLocationException bl) {
width = 0;
}
SegmentCache.releaseSharedSegment(buff);
return width + firstLineOffset;
default:
return super.getPreferredSpan(axis);
}
}
/**
* Returns the next visual position for the cursor, in either the east or west direction.
*
* @param pos the position to convert >= 0
* @param b a bias value of either <code>Position.Bias.Forward</code> or <code>
* Position.Bias.Backward</code>
* @param a the allocated region to render into
* @param direction the direction from the current position that can be thought of as the arrow
* keys typically found on a keyboard; this may be one of the following:
* <ul>
* <li><code>SwingConstants.WEST</code>
* <li><code>SwingConstants.EAST</code>
* </ul>
*
* @param biasRet an array containing the bias that was checked
* @return the location within the model that best represents the next west or east location
* @exception BadLocationException for a bad location within a document model
* @exception IllegalArgumentException if <code>direction</code> is invalid
* @see #getNextVisualPositionFrom
*/
protected int getNextEastWestVisualPositionFrom(
int pos, Position.Bias b, Shape a, int direction, Position.Bias[] biasRet)
throws BadLocationException {
if (pos < -1 || pos > getDocument().getLength()) {
throw new BadLocationException("invalid position", pos);
}
return Utilities.getNextVisualPositionFrom(this, pos, b, a, direction, biasRet);
}
void doKids(StringBuilder ans, Pretty pretty, String indent) {
if (kids == null) return;
for (Rope kid : kids) {
if (!pretty.pretty) {
kid.toString(ans, pretty, "");
} else {
kid.toString(ans, pretty, indent + getKidIndentIncrement(kid, pretty));
Utilities.assureEndsWithNewLine(ans);
}
}
}
private void start(StringBuilder ans, Pretty pretty, String indent) {
if (startEncloser == null) return;
if (!pretty.pretty) {
ans.append(startEncloser);
} else {
String comment;
if (pretty.comments && startComment.length() > 0) comment = " #" + startComment;
else comment = "";
ans.append(indent + startEncloser + comment);
Utilities.assureEndsWithNewLine(ans);
}
}
@Override
public Component getListCellRendererComponent(
JList<?> list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
JLabel label =
(JLabel)
(super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus));
if (value instanceof TypeColorEntry) {
TypeColorEntry entry = (TypeColorEntry) value;
Token.Type type = entry.getType();
Color color = entry.getColor();
label.setText(Utilities.normalize(type.toString()));
if ((type == Token.Type.MATCHED_BRACKET) || (type == Token.Type.UNMATCHED_BRACKET)) {
label.setBackground(color);
label.setForeground(Color.BLACK);
} else {
label.setForeground(color);
}
}
return label;
}
/**
* Draw the line numbers
*
* @param g
*/
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
((Graphics2D) g)
.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
// Determine the width of the space available to draw the line number
FontMetrics fontMetrics = component.getFontMetrics(component.getFont());
Insets insets = getInsets();
int availableWidth = getSize().width - insets.left - insets.right;
// Determine the rows to draw within the clipped bounds.
Rectangle clip = g.getClipBounds();
int rowStartOffset = component.viewToModel(new Point(0, clip.y));
int endOffset = component.viewToModel(new Point(0, clip.y + clip.height));
while (rowStartOffset <= endOffset) {
try {
if (isCurrentLine(rowStartOffset)) g.setColor(getCurrentLineForeground());
else g.setColor(getForeground());
// Get the line number as a string and then determine the
// "X" and "Y" offsets for drawing the string.
String lineNumber = getTextLineNumber(rowStartOffset);
int stringWidth = fontMetrics.stringWidth(lineNumber);
int x = getOffsetX(availableWidth, stringWidth) + insets.left;
int y = getOffsetY(rowStartOffset, fontMetrics);
g.drawString(lineNumber, x, y);
// Move to the next row
rowStartOffset = Utilities.getRowEnd(component, rowStartOffset) + 1;
} catch (Exception e) {
break;
}
}
}
/**
* Adjusts the allocation given to the view to be a suitable allocation for a text field. If the
* view has been allocated more than the preferred span vertically, the allocation is changed to
* be centered vertically. Horizontally the view is adjusted according to the horizontal alignment
* property set on the associated JTextField (if that is the type of the hosting component).
*
* @param a the allocation given to the view, which may need to be adjusted.
* @return the allocation that the superclass should use.
*/
protected Shape adjustAllocation(Shape a) {
if (a != null) {
Rectangle bounds = a.getBounds();
int vspan = (int) getPreferredSpan(Y_AXIS);
int hspan = (int) getPreferredSpan(X_AXIS);
if (bounds.height != vspan) {
int slop = bounds.height - vspan;
bounds.y += slop / 2;
bounds.height -= slop;
}
// horizontal adjustments
Component c = getContainer();
if (c instanceof JTextField) {
JTextField field = (JTextField) c;
BoundedRangeModel vis = field.getHorizontalVisibility();
int max = Math.max(hspan, bounds.width);
int value = vis.getValue();
int extent = Math.min(max, bounds.width - 1);
if ((value + extent) > max) {
value = max - extent;
}
vis.setRangeProperties(value, extent, vis.getMinimum(), max, false);
if (hspan < bounds.width) {
// horizontally align the interior
int slop = bounds.width - 1 - hspan;
int align = ((JTextField) c).getHorizontalAlignment();
if (Utilities.isLeftToRight(c)) {
if (align == LEADING) {
align = LEFT;
} else if (align == TRAILING) {
align = RIGHT;
}
} else {
if (align == LEADING) {
align = RIGHT;
} else if (align == TRAILING) {
align = LEFT;
}
}
switch (align) {
case SwingConstants.CENTER:
bounds.x += slop / 2;
bounds.width -= slop;
break;
case SwingConstants.RIGHT:
bounds.x += slop;
bounds.width -= slop;
break;
}
} else {
// adjust the allocation to match the bounded range.
bounds.width = hspan;
bounds.x -= vis.getValue();
}
}
return bounds;
}
return null;
}
public AboutDialog(JConsole jConsole) {
super(jConsole, Resources.getText("Help.AboutDialog.title"), false);
setAccessibleDescription(this, getText("Help.AboutDialog.accessibleDescription"));
setDefaultCloseOperation(HIDE_ON_CLOSE);
setResizable(false);
JComponent cp = (JComponent) getContentPane();
createActions();
JLabel mastheadLabel = new JLabel(mastheadIcon);
setAccessibleName(mastheadLabel, getText("Help.AboutDialog.masthead.accessibleName"));
JPanel mainPanel = new TPanel(0, 0);
mainPanel.add(mastheadLabel, NORTH);
String jConsoleVersion = Version.getVersion();
String vmName = System.getProperty("java.vm.name");
String vmVersion = System.getProperty("java.vm.version");
String urlStr = getText("Help.AboutDialog.userGuideLink.url");
if (isBrowseSupported()) {
urlStr = "<a style='color:#35556b' href=\"" + urlStr + "\">" + urlStr + "</a>";
}
JPanel infoAndLogoPanel = new JPanel(new BorderLayout(10, 10));
infoAndLogoPanel.setBackground(bgColor);
String colorStr = String.format("%06x", textColor.getRGB() & 0xFFFFFF);
JEditorPane helpLink =
new JEditorPane(
"text/html",
"<html><font color=#"
+ colorStr
+ ">"
+ getText("Help.AboutDialog.jConsoleVersion", jConsoleVersion)
+ "<p>"
+ getText("Help.AboutDialog.javaVersion", (vmName + ", " + vmVersion))
+ "<p>"
+ getText("Help.AboutDialog.userGuideLink", urlStr)
+ "</html>");
helpLink.setOpaque(false);
helpLink.setEditable(false);
helpLink.setForeground(textColor);
mainPanel.setBorder(BorderFactory.createLineBorder(borderColor));
infoAndLogoPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
helpLink.addHyperlinkListener(
new HyperlinkListener() {
public void hyperlinkUpdate(HyperlinkEvent e) {
if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
browse(e.getDescription());
}
}
});
infoAndLogoPanel.add(helpLink, NORTH);
ImageIcon brandLogoIcon = new ImageIcon(getClass().getResource("resources/brandlogo.png"));
JLabel brandLogo = new JLabel(brandLogoIcon, JLabel.LEADING);
JButton closeButton = new JButton(closeAction);
JPanel bottomPanel = new TPanel(0, 0);
JPanel buttonPanel = new JPanel(new FlowLayout(FlowLayout.TRAILING));
buttonPanel.setOpaque(false);
mainPanel.add(infoAndLogoPanel, CENTER);
cp.add(bottomPanel, SOUTH);
infoAndLogoPanel.add(brandLogo, SOUTH);
buttonPanel.setBorder(new EmptyBorder(2, 12, 2, 12));
buttonPanel.add(closeButton);
bottomPanel.add(buttonPanel, NORTH);
statusBar = new JLabel(" ");
bottomPanel.add(statusBar, SOUTH);
cp.add(mainPanel, NORTH);
pack();
setLocationRelativeTo(jConsole);
Utilities.updateTransparency(this);
}
