下面列出了java.awt.Graphics2D#getFontMetrics ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
/**
* Update lable gap
*
* @param g Graphics2D
* @param rect The rectangle
*/
public void updateLabelGap(Graphics2D g, Rectangle2D rect) {
if (this.getTickValues() == null) {
return;
}
double len;
int n = this.getTickValues().length;
int nn;
if (this.xAxis) {
len = rect.getWidth();
int labLen = this.getMaxLabelLength(g);
nn = (int) ((len * 0.8) / labLen);
} else {
len = rect.getHeight();
FontMetrics metrics = g.getFontMetrics(this.label.getFont());
nn = (int) (len / metrics.getHeight());
}
if (nn == 0) {
nn = 1;
}
this.tickLabelGap = n / nn + 1;
}
/**
* Returns a rectangle that encloses the axis label. This is typically
* used for layout purposes (it gives the maximum dimensions of the label).
*
* @param g2 the graphics device.
* @param edge the edge of the plot area along which the axis is measuring.
*
* @return The enclosing rectangle.
*/
protected Rectangle2D getLabelEnclosure(Graphics2D g2, RectangleEdge edge) {
Rectangle2D result = new Rectangle2D.Double();
String axisLabel = getLabel();
if (axisLabel != null && !axisLabel.equals("")) {
FontMetrics fm = g2.getFontMetrics(getLabelFont());
Rectangle2D bounds = TextUtilities.getTextBounds(axisLabel, g2, fm);
RectangleInsets insets = getLabelInsets();
bounds = insets.createOutsetRectangle(bounds);
double angle = getLabelAngle();
if (edge == RectangleEdge.LEFT || edge == RectangleEdge.RIGHT) {
angle = angle - Math.PI / 2.0;
}
double x = bounds.getCenterX();
double y = bounds.getCenterY();
AffineTransform transformer
= AffineTransform.getRotateInstance(angle, x, y);
Shape labelBounds = transformer.createTransformedShape(bounds);
result = labelBounds.getBounds2D();
}
return result;
}
/**
* Returns a rectangle that encloses the axis label. This is typically
* used for layout purposes (it gives the maximum dimensions of the label).
*
* @param g2 the graphics device.
* @param edge the edge of the plot area along which the axis is measuring.
*
* @return The enclosing rectangle.
*/
protected Rectangle2D getLabelEnclosure(Graphics2D g2, RectangleEdge edge) {
Rectangle2D result = new Rectangle2D.Double();
String axisLabel = getLabel();
if (axisLabel != null && !axisLabel.equals("")) {
FontMetrics fm = g2.getFontMetrics(getLabelFont());
Rectangle2D bounds = TextUtilities.getTextBounds(axisLabel, g2, fm);
RectangleInsets insets = getLabelInsets();
bounds = insets.createOutsetRectangle(bounds);
double angle = getLabelAngle();
if (edge == RectangleEdge.LEFT || edge == RectangleEdge.RIGHT) {
angle = angle - Math.PI / 2.0;
}
double x = bounds.getCenterX();
double y = bounds.getCenterY();
AffineTransform transformer
= AffineTransform.getRotateInstance(angle, x, y);
Shape labelBounds = transformer.createTransformedShape(bounds);
result = labelBounds.getBounds2D();
}
return result;
}
/**
* Returns a rectangle that encloses the axis label. This is typically
* used for layout purposes (it gives the maximum dimensions of the label).
*
* @param g2 the graphics device.
* @param edge the edge of the plot area along which the axis is measuring.
*
* @return The enclosing rectangle.
*/
protected Rectangle2D getLabelEnclosure(Graphics2D g2, RectangleEdge edge) {
Rectangle2D result = new Rectangle2D.Double();
String axisLabel = getLabel();
if (axisLabel != null && !axisLabel.equals("")) {
FontMetrics fm = g2.getFontMetrics(getLabelFont());
Rectangle2D bounds = TextUtilities.getTextBounds(axisLabel, g2, fm);
RectangleInsets insets = getLabelInsets();
bounds = insets.createOutsetRectangle(bounds);
double angle = getLabelAngle();
if (edge == RectangleEdge.LEFT || edge == RectangleEdge.RIGHT) {
angle = angle - Math.PI / 2.0;
}
double x = bounds.getCenterX();
double y = bounds.getCenterY();
AffineTransform transformer
= AffineTransform.getRotateInstance(angle, x, y);
Shape labelBounds = transformer.createTransformedShape(bounds);
result = labelBounds.getBounds2D();
}
return result;
}
/**
* A utility method that draws a string inside a rectangle.
*
* @param g2 the graphics device.
* @param bounds the rectangle.
* @param font the font.
* @param text the text.
*/
private void drawStringInRect(Graphics2D g2, Rectangle2D bounds, Font font,
String text) {
g2.setFont(font);
FontMetrics fm = g2.getFontMetrics(font);
Rectangle2D r = TextUtilities.getTextBounds(text, g2, fm);
double x = bounds.getX();
if (r.getWidth() < bounds.getWidth()) {
x = x + (bounds.getWidth() - r.getWidth()) / 2;
}
LineMetrics metrics = font.getLineMetrics(
text, g2.getFontRenderContext()
);
g2.drawString(
text, (float) x, (float) (bounds.getMaxY()
- this.bottomInnerGap - metrics.getDescent())
);
}
private void drawAxis(Graphics2D g2) {
double axisH = yPositionToPixel(originY);
double axisV = xPositionToPixel(originX);
g2.setColor(COLOR_AXIS);
Stroke stroke = g2.getStroke();
g2.setStroke(new BasicStroke(STROKE_AXIS));
g2.drawLine(0, (int) axisH, getWidth(), (int) axisH);
g2.drawLine((int) axisV, 0, (int) axisV, getHeight());
FontMetrics metrics = g2.getFontMetrics();
g2.drawString(formatter.format(0.0), (int) axisV + 5, (int) axisH + metrics.getHeight());
g2.setStroke(stroke);
}
private static AvatarImg fallback(String letter, Color color, int size) {
BufferedImage img = new BufferedImage(size, size, BufferedImage.TYPE_INT_RGB);
Graphics2D graphics = img.createGraphics();
graphics.setColor(color);
graphics.fillRect(0, 0, size, size);
graphics.setFont(new Font(Font.DIALOG, Font.PLAIN, size));
graphics.setColor(LETTER_COLOR);
graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
FontMetrics fm = graphics.getFontMetrics();
Rectangle2D r = fm.getStringBounds(letter, graphics);
graphics.drawString(letter,
(size - (int) r.getWidth()) / 2.0f,
// adjust to font baseline
// Note: not centered for letters with descent (drawing under
// the baseline), dont know how to get that
(size - (int) r.getHeight()) / 2.0f + fm.getAscent());
return new AvatarImg(img, true);
}
/**
* Estimates the maximum width of the tick labels, assuming the specified
* tick unit is used.
* <P>
* Rather than computing the string bounds of every tick on the axis, we
* just look at two values: the lower bound and the upper bound for the
* axis. These two values will usually be representative.
*
* @param g2 the graphics device.
* @param unit the tick unit to use for calculation.
*
* @return The estimated maximum width of the tick labels.
*/
protected double estimateMaximumTickLabelWidth(Graphics2D g2,
TickUnit unit) {
RectangleInsets tickLabelInsets = getTickLabelInsets();
double result = tickLabelInsets.getLeft() + tickLabelInsets.getRight();
if (isVerticalTickLabels()) {
// all tick labels have the same width (equal to the height of the
// font)...
FontRenderContext frc = g2.getFontRenderContext();
LineMetrics lm = getTickLabelFont().getLineMetrics("0", frc);
result += lm.getHeight();
}
else {
// look at lower and upper bounds...
FontMetrics fm = g2.getFontMetrics(getTickLabelFont());
Range range = getRange();
double lower = range.getLowerBound();
double upper = range.getUpperBound();
String lowerStr, upperStr;
NumberFormat formatter = getNumberFormatOverride();
if (formatter != null) {
lowerStr = formatter.format(lower);
upperStr = formatter.format(upper);
}
else {
lowerStr = unit.valueToString(lower);
upperStr = unit.valueToString(upper);
}
double w1 = fm.stringWidth(lowerStr);
double w2 = fm.stringWidth(upperStr);
result += Math.max(w1, w2);
}
return result;
}
/**
* A utility method for determining the width of the widest tick label.
*
* @param ticks the ticks.
* @param g2 the graphics device.
* @param drawArea the area within which the plot and axes should be drawn.
* @param vertical a flag that indicates whether or not the tick labels
* are 'vertical'.
*
* @return The width of the tallest tick label.
*/
protected double findMaximumTickLabelWidth(List ticks, Graphics2D g2,
Rectangle2D drawArea, boolean vertical) {
RectangleInsets insets = getTickLabelInsets();
Font font = getTickLabelFont();
double maxWidth = 0.0;
if (!vertical) {
FontMetrics fm = g2.getFontMetrics(font);
Iterator iterator = ticks.iterator();
while (iterator.hasNext()) {
Tick tick = (Tick) iterator.next();
Rectangle2D labelBounds = null;
if (tick instanceof LogTick) {
LogTick lt = (LogTick) tick;
if (lt.getAttributedLabel() != null) {
labelBounds = AttrStringUtils.getTextBounds(
lt.getAttributedLabel(), g2);
}
} else if (tick.getText() != null) {
labelBounds = TextUtilities.getTextBounds(tick.getText(),
g2, fm);
}
if (labelBounds != null
&& labelBounds.getWidth() + insets.getLeft()
+ insets.getRight() > maxWidth) {
maxWidth = labelBounds.getWidth()
+ insets.getLeft() + insets.getRight();
}
}
} else {
LineMetrics metrics = font.getLineMetrics("ABCxyz",
g2.getFontRenderContext());
maxWidth = metrics.getHeight()
+ insets.getTop() + insets.getBottom();
}
return maxWidth;
}
private void renderWidgetOverlay(Graphics2D graphics, Portal portal, String text, Color color)
{
Widget shield = client.getWidget(portal.getWidget().getShield());
Widget icon = client.getWidget(portal.getWidget().getIcon());
Widget hp = client.getWidget(portal.getWidget().getHitpoints());
Widget bar = client.getWidget(WidgetInfo.PEST_CONTROL_ACTIVITY_BAR).getChild(0);
Rectangle2D barBounds = bar.getBounds().getBounds2D();
// create one rectangle from two different widget bounds
Rectangle2D bounds = union(shield.getBounds().getBounds2D(), icon.getBounds().getBounds2D());
bounds = union(bounds, hp.getBounds().getBounds2D());
graphics.setColor(color);
graphics.draw(new Rectangle2D.Double(bounds.getX(), bounds.getY() - 2, bounds.getWidth(), bounds.getHeight() - 3));
FontMetrics fm = graphics.getFontMetrics();
Rectangle2D textBounds = fm.getStringBounds(text, graphics);
int x = (int) (bounds.getX() + (bounds.getWidth() / 2) - (textBounds.getWidth() / 2));
int y = (int) (bounds.getY() + bounds.getHeight() + textBounds.getHeight() + barBounds.getHeight());
graphics.setColor(Color.BLACK);
graphics.drawString(text, x + 1, y + 5);
graphics.setColor(color);
graphics.drawString(text, x, y + 4);
}
/**
* A utility method for determining the height of the tallest tick label.
*
* @param ticks the ticks.
* @param g2 the graphics device.
* @param drawArea the area within which the plot and axes should be drawn.
* @param vertical a flag that indicates whether or not the tick labels
* are 'vertical'.
*
* @return The height of the tallest tick label.
*/
protected double findMaximumTickLabelHeight(List ticks, Graphics2D g2,
Rectangle2D drawArea, boolean vertical) {
RectangleInsets insets = getTickLabelInsets();
Font font = getTickLabelFont();
g2.setFont(font);
double maxHeight = 0.0;
if (vertical) {
FontMetrics fm = g2.getFontMetrics(font);
Iterator iterator = ticks.iterator();
while (iterator.hasNext()) {
Tick tick = (Tick) iterator.next();
Rectangle2D labelBounds = null;
if (tick instanceof LogTick) {
LogTick lt = (LogTick) tick;
if (lt.getAttributedLabel() != null) {
labelBounds = AttrStringUtils.getTextBounds(
lt.getAttributedLabel(), g2);
}
} else if (tick.getText() != null) {
labelBounds = TextUtilities.getTextBounds(
tick.getText(), g2, fm);
}
if (labelBounds != null && labelBounds.getWidth()
+ insets.getTop() + insets.getBottom() > maxHeight) {
maxHeight = labelBounds.getWidth()
+ insets.getTop() + insets.getBottom();
}
}
} else {
LineMetrics metrics = font.getLineMetrics("ABCxyz",
g2.getFontRenderContext());
maxHeight = metrics.getHeight()
+ insets.getTop() + insets.getBottom();
}
return maxHeight;
}
/** @param gc
* @param screen_y Screen location of label along the axis
* @param mark Label text
* @param floating Add 'floating' box?
* @param avoid Outline of previous label to avoid
* @return Outline of this label or the last one if skipping this label
*/
private Rectangle drawTickLabel(final Graphics2D gc, final int screen_y, final String mark, final boolean floating, final Rectangle avoid)
{
final Rectangle region = getBounds();
gc.setFont(scale_font);
final FontMetrics metrics = gc.getFontMetrics();
final int mark_height = metrics.stringWidth(mark);
final int mark_width = metrics.getHeight();
final int x = is_right ? region.x + TICK_LENGTH : region.x + region.width - TICK_LENGTH - mark_width;
int y = screen_y - mark_height/2;
// Correct location of top label to remain within region
if (y < 0)
y = 0;
final Rectangle outline = new Rectangle(x-BORDER, y-BORDER, mark_width+2*BORDER, mark_height+2*BORDER);
if (floating)
{
if (is_right)
gc.drawLine(x - TICK_LENGTH, screen_y, x, screen_y);
else
gc.drawLine(x + mark_width, screen_y, x + mark_width + TICK_LENGTH, screen_y);
// Box around label
gc.clearRect(outline.x, outline.y, outline.width, outline.height);
gc.drawRect(outline.x, outline.y, outline.width, outline.height);
}
if (avoid != null && outline.intersects(avoid))
return avoid;
// Debug: Outline of text
// gc.drawRect(x, y, mark_width, mark_height); // Debug outline of tick label
GraphicsUtils.drawVerticalText(gc, x, y, mark, !is_right);
return outline;
}
@Override
public Dimension render(Graphics2D graphics)
{
if (consumers.isEmpty())
{
return null;
}
final MainBufferProvider bufferProvider = (MainBufferProvider) client.getBufferProvider();
final int imageHeight = ((BufferedImage) bufferProvider.getImage()).getHeight();
final int y = imageHeight - plugin.getReportButton().getHeight() - 1;
graphics.drawImage(plugin.getReportButton(), REPORT_BUTTON_X_OFFSET, y, null);
graphics.setFont(FontManager.getRunescapeSmallFont());
FontMetrics fontMetrics = graphics.getFontMetrics();
String date = DATE_FORMAT.format(new Date());
final int dateWidth = fontMetrics.stringWidth(date);
final int dateHeight = fontMetrics.getHeight();
final int textX = REPORT_BUTTON_X_OFFSET + plugin.getReportButton().getWidth() / 2 - dateWidth / 2;
final int textY = y + plugin.getReportButton().getHeight() / 2 + dateHeight / 2;
graphics.setColor(Color.BLACK);
graphics.drawString(date, textX + 1, textY + 1);
graphics.setColor(Color.WHITE);
graphics.drawString(date, textX, textY);
// Request the queued screenshots to be taken,
// now that the timestamp is visible.
Consumer<Image> consumer;
while ((consumer = consumers.poll()) != null)
{
drawManager.requestNextFrameListener(consumer);
}
return null;
}
@Override
public FontMetrics getFontMetrics(Font f) {
// This one stumped me; I'm not sure how we're supposed to handle this?
BufferedImage bi = new BufferedImage(1, 1, BufferedImage.TYPE_INT_ARGB);
Graphics2D g = bi.createGraphics();
context.install(g);
FontMetrics returnValue = g.getFontMetrics(f);
g.dispose();
return returnValue;
}
/**
* Presents the Exceptions if the chart cannot be displayed properly.
*
* @param g2d
* @param ex
*/
private final void showException( Graphics2D g2d, Exception ex )
{
String sWrappedException = ex.getClass( ).getName( );
Throwable th = ex;
while ( ex.getCause( ) != null )
{
ex = (Exception) ex.getCause( );
}
String sException = ex.getClass( ).getName( );
if ( sWrappedException.equals( sException ) )
{
sWrappedException = null;
}
String sMessage = null;
if ( th instanceof BirtException )
{
sMessage = ( (BirtException) th ).getLocalizedMessage( );
}
else
{
sMessage = ex.getMessage( );
}
if ( sMessage == null )
{
sMessage = "<null>";//$NON-NLS-1$
}
StackTraceElement[] stea = ex.getStackTrace( );
Dimension d = getSize( );
Font fo = new Font( "Monospaced", Font.BOLD, 14 );//$NON-NLS-1$
g2d.setFont( fo );
FontMetrics fm = g2d.getFontMetrics( );
g2d.setColor( Color.WHITE );
g2d.fillRect( 20, 20, d.width - 40, d.height - 40 );
g2d.setColor( Color.BLACK );
g2d.drawRect( 20, 20, d.width - 40, d.height - 40 );
g2d.setClip( 20, 20, d.width - 40, d.height - 40 );
int x = 25, y = 20 + fm.getHeight( );
g2d.drawString( "Exception:", x, y );//$NON-NLS-1$
x += fm.stringWidth( "Exception:" ) + 5;//$NON-NLS-1$
g2d.setColor( Color.RED );
g2d.drawString( sException, x, y );
x = 25;
y += fm.getHeight( );
if ( sWrappedException != null )
{
g2d.setColor( Color.BLACK );
g2d.drawString( "Wrapped In:", x, y );//$NON-NLS-1$
x += fm.stringWidth( "Wrapped In:" ) + 5;//$NON-NLS-1$
g2d.setColor( Color.RED );
g2d.drawString( sWrappedException, x, y );
x = 25;
y += fm.getHeight( );
}
g2d.setColor( Color.BLACK );
y += 10;
g2d.drawString( "Message:", x, y );//$NON-NLS-1$
x += fm.stringWidth( "Message:" ) + 5;//$NON-NLS-1$
g2d.setColor( Color.BLUE );
g2d.drawString( sMessage, x, y );
x = 25;
y += fm.getHeight( );
g2d.setColor( Color.BLACK );
y += 10;
g2d.drawString( "Trace:", x, y );//$NON-NLS-1$
x = 40;
y += fm.getHeight( );
g2d.setColor( Color.GREEN.darker( ) );
for ( int i = 0; i < stea.length; i++ )
{
g2d.drawString( stea[i].getClassName( ) + ":"//$NON-NLS-1$
+ stea[i].getMethodName( ) + "(...):"//$NON-NLS-1$
+ stea[i].getLineNumber( ), x, y );
x = 40;
y += fm.getHeight( );
}
}
/**
* Draws the pie section labels in the simple form.
*
* @param g2 the graphics device.
* @param keys the section keys.
* @param totalValue the total value for all sections in the pie.
* @param plotArea the plot area.
* @param pieArea the area containing the pie.
* @param state the plot state.
*
* @since 1.0.7
*/
protected void drawSimpleLabels(Graphics2D g2, List keys,
double totalValue, Rectangle2D plotArea, Rectangle2D pieArea,
PiePlotState state) {
Composite originalComposite = g2.getComposite();
g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER,
1.0f));
RectangleInsets labelInsets = new RectangleInsets(UnitType.RELATIVE,
0.18, 0.18, 0.18, 0.18);
Rectangle2D labelsArea = labelInsets.createInsetRectangle(pieArea);
double runningTotal = 0.0;
Iterator iterator = keys.iterator();
while (iterator.hasNext()) {
Comparable key = (Comparable) iterator.next();
boolean include = true;
double v = 0.0;
Number n = getDataset().getValue(key);
if (n == null) {
include = !getIgnoreNullValues();
}
else {
v = n.doubleValue();
include = getIgnoreZeroValues() ? v > 0.0 : v >= 0.0;
}
if (include) {
runningTotal = runningTotal + v;
// work out the mid angle (0 - 90 and 270 - 360) = right,
// otherwise left
double mid = getStartAngle() + (getDirection().getFactor()
* ((runningTotal - v / 2.0) * 360) / totalValue);
Arc2D arc = new Arc2D.Double(labelsArea, getStartAngle(),
mid - getStartAngle(), Arc2D.OPEN);
int x = (int) arc.getEndPoint().getX();
int y = (int) arc.getEndPoint().getY();
PieSectionLabelGenerator labelGenerator = getLabelGenerator();
if (labelGenerator == null) {
continue;
}
String label = labelGenerator.generateSectionLabel(
this.dataset, key);
if (label == null) {
continue;
}
g2.setFont(this.labelFont);
FontMetrics fm = g2.getFontMetrics();
Rectangle2D bounds = TextUtilities.getTextBounds(label, g2, fm);
Rectangle2D out = this.labelPadding.createOutsetRectangle(
bounds);
Shape bg = ShapeUtilities.createTranslatedShape(out,
x - bounds.getCenterX(), y - bounds.getCenterY());
if (this.labelShadowPaint != null) {
Shape shadow = ShapeUtilities.createTranslatedShape(bg,
this.shadowXOffset, this.shadowYOffset);
g2.setPaint(this.labelShadowPaint);
g2.fill(shadow);
}
if (this.labelBackgroundPaint != null) {
g2.setPaint(this.labelBackgroundPaint);
g2.fill(bg);
}
if (this.labelOutlinePaint != null
&& this.labelOutlineStroke != null) {
g2.setPaint(this.labelOutlinePaint);
g2.setStroke(this.labelOutlineStroke);
g2.draw(bg);
}
g2.setPaint(this.labelPaint);
g2.setFont(this.labelFont);
TextUtilities.drawAlignedString(getLabelGenerator()
.generateSectionLabel(getDataset(), key), g2, x, y,
TextAnchor.CENTER);
}
}
g2.setComposite(originalComposite);
}
/**
* Draws the background to the specified graphics device. If the dial
* frame specifies a window, the clipping region will already have been
* set to this window before this method is called.
*
* @param g2 the graphics device (<code>null</code> not permitted).
* @param plot the plot (ignored here).
* @param frame the dial frame (ignored here).
* @param view the view rectangle (<code>null</code> not permitted).
*/
@Override
public void draw(Graphics2D g2, DialPlot plot, Rectangle2D frame,
Rectangle2D view) {
// work out the anchor point
Rectangle2D f = DialPlot.rectangleByRadius(frame, this.radius,
this.radius);
Arc2D arc = new Arc2D.Double(f, this.angle, 0.0, Arc2D.OPEN);
Point2D pt = arc.getStartPoint();
// the indicator bounds is calculated from the templateValue (which
// determines the minimum size), the maxTemplateValue (which, if
// specified, provides a maximum size) and the actual value
FontMetrics fm = g2.getFontMetrics(this.font);
double value = plot.getValue(this.datasetIndex);
String valueStr = this.formatter.format(value);
Rectangle2D valueBounds = TextUtilities.getTextBounds(valueStr, g2, fm);
// calculate the bounds of the template value
String s = this.formatter.format(this.templateValue);
Rectangle2D tb = TextUtilities.getTextBounds(s, g2, fm);
double minW = tb.getWidth();
double minH = tb.getHeight();
double maxW = Double.MAX_VALUE;
double maxH = Double.MAX_VALUE;
if (this.maxTemplateValue != null) {
s = this.formatter.format(this.maxTemplateValue);
tb = TextUtilities.getTextBounds(s, g2, fm);
maxW = Math.max(tb.getWidth(), minW);
maxH = Math.max(tb.getHeight(), minH);
}
double w = fixToRange(valueBounds.getWidth(), minW, maxW);
double h = fixToRange(valueBounds.getHeight(), minH, maxH);
// align this rectangle to the frameAnchor
Rectangle2D bounds = RectangleAnchor.createRectangle(new Size2D(w, h),
pt.getX(), pt.getY(), this.frameAnchor);
// add the insets
Rectangle2D fb = this.insets.createOutsetRectangle(bounds);
// draw the background
g2.setPaint(this.backgroundPaint);
g2.fill(fb);
// draw the border
g2.setStroke(this.outlineStroke);
g2.setPaint(this.outlinePaint);
g2.draw(fb);
// now find the text anchor point
Shape savedClip = g2.getClip();
g2.clip(fb);
Point2D pt2 = RectangleAnchor.coordinates(bounds, this.valueAnchor);
g2.setPaint(this.paint);
g2.setFont(this.font);
TextUtilities.drawAlignedString(valueStr, g2, (float) pt2.getX(),
(float) pt2.getY(), this.textAnchor);
g2.setClip(savedClip);
}
/**
* Presents the Exceptions if the chart cannot be displayed properly.
*
* @param g2d
* @param ex
*/
private final void showException( Graphics2D g2d, Exception ex )
{
String sWrappedException = ex.getClass( ).getName( );
Throwable th = ex;
while ( ex.getCause( ) != null )
{
ex = (Exception) ex.getCause( );
}
String sException = ex.getClass( ).getName( );
if ( sWrappedException.equals( sException ) )
{
sWrappedException = null;
}
String sMessage = null;
if ( th instanceof BirtException )
{
sMessage = ( (BirtException) th ).getLocalizedMessage( );
}
else
{
sMessage = ex.getMessage( );
}
if ( sMessage == null )
{
sMessage = "<null>";//$NON-NLS-1$
}
StackTraceElement[] stea = ex.getStackTrace( );
Dimension d = getSize( );
Font fo = new Font( "Monospaced", Font.BOLD, 14 );//$NON-NLS-1$
g2d.setFont( fo );
FontMetrics fm = g2d.getFontMetrics( );
g2d.setColor( Color.WHITE );
g2d.fillRect( 20, 20, d.width - 40, d.height - 40 );
g2d.setColor( Color.BLACK );
g2d.drawRect( 20, 20, d.width - 40, d.height - 40 );
g2d.setClip( 20, 20, d.width - 40, d.height - 40 );
int x = 25, y = 20 + fm.getHeight( );
g2d.drawString( "Exception:", x, y );//$NON-NLS-1$
x += fm.stringWidth( "Exception:" ) + 5;//$NON-NLS-1$
g2d.setColor( Color.RED );
g2d.drawString( sException, x, y );
x = 25;
y += fm.getHeight( );
if ( sWrappedException != null )
{
g2d.setColor( Color.BLACK );
g2d.drawString( "Wrapped In:", x, y );//$NON-NLS-1$
x += fm.stringWidth( "Wrapped In:" ) + 5;//$NON-NLS-1$
g2d.setColor( Color.RED );
g2d.drawString( sWrappedException, x, y );
x = 25;
y += fm.getHeight( );
}
g2d.setColor( Color.BLACK );
y += 10;
g2d.drawString( "Message:", x, y );//$NON-NLS-1$
x += fm.stringWidth( "Message:" ) + 5;//$NON-NLS-1$
g2d.setColor( Color.BLUE );
g2d.drawString( sMessage, x, y );
x = 25;
y += fm.getHeight( );
g2d.setColor( Color.BLACK );
y += 10;
g2d.drawString( "Trace:", x, y );//$NON-NLS-1$
x = 40;
y += fm.getHeight( );
g2d.setColor( Color.GREEN.darker( ) );
for ( int i = 0; i < stea.length; i++ )
{
g2d.drawString( stea[i].getClassName( ) + ":"//$NON-NLS-1$
+ stea[i].getMethodName( ) + "(...):"//$NON-NLS-1$
+ stea[i].getLineNumber( ), x, y );
x = 40;
y += fm.getHeight( );
}
}
/**
* Presents the Exceptions if the chart cannot be displayed properly.
*
* @param g2d
* @param ex
*/
private final void showException( Graphics2D g2d, Exception ex )
{
String sWrappedException = ex.getClass( ).getName( );
Throwable th = ex;
while ( ex.getCause( ) != null )
{
ex = (Exception) ex.getCause( );
}
String sException = ex.getClass( ).getName( );
if ( sWrappedException.equals( sException ) )
{
sWrappedException = null;
}
String sMessage = null;
if ( th instanceof BirtException )
{
sMessage = ( (BirtException) th ).getLocalizedMessage( );
}
else
{
sMessage = ex.getMessage( );
}
if ( sMessage == null )
{
sMessage = "<null>";//$NON-NLS-1$
}
StackTraceElement[] stea = ex.getStackTrace( );
Dimension d = getSize( );
Font fo = new Font( "Monospaced", Font.BOLD, 14 );//$NON-NLS-1$
g2d.setFont( fo );
FontMetrics fm = g2d.getFontMetrics( );
g2d.setColor( Color.WHITE );
g2d.fillRect( 20, 20, d.width - 40, d.height - 40 );
g2d.setColor( Color.BLACK );
g2d.drawRect( 20, 20, d.width - 40, d.height - 40 );
g2d.setClip( 20, 20, d.width - 40, d.height - 40 );
int x = 25, y = 20 + fm.getHeight( );
g2d.drawString( "Exception:", x, y );//$NON-NLS-1$
x += fm.stringWidth( "Exception:" ) + 5;//$NON-NLS-1$
g2d.setColor( Color.RED );
g2d.drawString( sException, x, y );
x = 25;
y += fm.getHeight( );
if ( sWrappedException != null )
{
g2d.setColor( Color.BLACK );
g2d.drawString( "Wrapped In:", x, y );//$NON-NLS-1$
x += fm.stringWidth( "Wrapped In:" ) + 5;//$NON-NLS-1$
g2d.setColor( Color.RED );
g2d.drawString( sWrappedException, x, y );
x = 25;
y += fm.getHeight( );
}
g2d.setColor( Color.BLACK );
y += 10;
g2d.drawString( "Message:", x, y );//$NON-NLS-1$
x += fm.stringWidth( "Message:" ) + 5;//$NON-NLS-1$
g2d.setColor( Color.BLUE );
g2d.drawString( sMessage, x, y );
x = 25;
y += fm.getHeight( );
g2d.setColor( Color.BLACK );
y += 10;
g2d.drawString( "Trace:", x, y );//$NON-NLS-1$
x = 40;
y += fm.getHeight( );
g2d.setColor( Color.GREEN.darker( ) );
for ( int i = 0; i < stea.length; i++ )
{
g2d.drawString( stea[i].getClassName( ) + ":"//$NON-NLS-1$
+ stea[i].getMethodName( ) + "(...):"//$NON-NLS-1$
+ stea[i].getLineNumber( ), x, y );
x = 40;
y += fm.getHeight( );
}
}
/**
* Estimates the space (height or width) required to draw the axis.
*
* @param g2 the graphics device.
* @param plot the plot that the axis belongs to.
* @param plotArea the area within which the plot (including axes) should
* be drawn.
* @param edge the axis location.
* @param space space already reserved.
*
* @return The space required to draw the axis (including pre-reserved
* space).
*/
@Override
public AxisSpace reserveSpace(Graphics2D g2, Plot plot,
Rectangle2D plotArea, RectangleEdge edge, AxisSpace space) {
// create a new space object if one wasn't supplied...
if (space == null) {
space = new AxisSpace();
}
// if the axis is not visible, no additional space is required...
if (!isVisible()) {
return space;
}
// if the axis has a fixed dimension, return it...
double dimension = getFixedDimension();
if (dimension > 0.0) {
space.ensureAtLeast(dimension, edge);
}
// get the axis label size and update the space object...
Rectangle2D labelEnclosure = getLabelEnclosure(g2, edge);
double labelHeight, labelWidth;
double tickLabelBandsDimension = 0.0;
for (int i = 0; i < this.labelInfo.length; i++) {
PeriodAxisLabelInfo info = this.labelInfo[i];
FontMetrics fm = g2.getFontMetrics(info.getLabelFont());
tickLabelBandsDimension
+= info.getPadding().extendHeight(fm.getHeight());
}
if (RectangleEdge.isTopOrBottom(edge)) {
labelHeight = labelEnclosure.getHeight();
space.add(labelHeight + tickLabelBandsDimension, edge);
}
else if (RectangleEdge.isLeftOrRight(edge)) {
labelWidth = labelEnclosure.getWidth();
space.add(labelWidth + tickLabelBandsDimension, edge);
}
// add space for the outer tick labels, if any...
double tickMarkSpace = 0.0;
if (isTickMarksVisible()) {
tickMarkSpace = getTickMarkOutsideLength();
}
if (this.minorTickMarksVisible) {
tickMarkSpace = Math.max(tickMarkSpace,
this.minorTickMarkOutsideLength);
}
space.add(tickMarkSpace, edge);
return space;
}