/**
* 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);
}
/**
* Reserve some space on each axis side because we draw a centered label at each extremity.
*
* @param g2 the graphics device.
* @param plot the plot.
* @param plotArea the plot area.
* @param edge the edge.
* @param space the space already reserved.
* @return The reserved space.
*/
public AxisSpace reserveSpace(
Graphics2D g2, Plot plot, Rectangle2D plotArea, RectangleEdge edge, AxisSpace space) {
this.internalMarkerCycleBoundTick = null;
AxisSpace ret = super.reserveSpace(g2, plot, plotArea, edge, space);
if (this.internalMarkerCycleBoundTick == null) {
return ret;
}
FontMetrics fm = g2.getFontMetrics(getTickLabelFont());
Rectangle2D r =
TextUtilities.getTextBounds(this.internalMarkerCycleBoundTick.getText(), g2, fm);
if (RectangleEdge.isTopOrBottom(edge)) {
if (isVerticalTickLabels()) {
space.add(r.getHeight() / 2, RectangleEdge.RIGHT);
} else {
space.add(r.getWidth() / 2, RectangleEdge.RIGHT);
}
} else if (RectangleEdge.isLeftOrRight(edge)) {
if (isVerticalTickLabels()) {
space.add(r.getWidth() / 2, RectangleEdge.TOP);
} else {
space.add(r.getHeight() / 2, RectangleEdge.TOP);
}
}
return ret;
}
public Point textExtent(String text) {
String[] lines = text.split(Const.CR);
int maxWidth = 0;
for (String line : lines) {
Rectangle2D bounds = TextUtilities.getTextBounds(line, gc, gc.getFontMetrics());
if (bounds.getWidth() > maxWidth) maxWidth = (int) bounds.getWidth();
}
int height = gc.getFontMetrics().getHeight() * lines.length;
return new Point((int) maxWidth, (int) height);
}
/**
* 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()));
}
/**
* Draws a tick on the dial.
*
* @param g2 the graphics device.
* @param meterArea the meter area.
* @param value the tick value.
* @param label a flag that controls whether or not a value label is drawn.
*/
protected void drawTick(Graphics2D g2, Rectangle2D meterArea, double value, boolean label) {
double valueAngle = valueToAngle(value);
double meterMiddleX = meterArea.getCenterX();
double meterMiddleY = meterArea.getCenterY();
g2.setPaint(this.tickPaint);
g2.setStroke(new BasicStroke(2.0f));
double valueP2X = 0;
double valueP2Y = 0;
double radius = (meterArea.getWidth() / 2) + DEFAULT_BORDER_SIZE;
double radius1 = radius - 15;
double valueP1X = meterMiddleX + (radius * Math.cos(Math.PI * (valueAngle / 180)));
double valueP1Y = meterMiddleY - (radius * Math.sin(Math.PI * (valueAngle / 180)));
valueP2X = meterMiddleX + (radius1 * Math.cos(Math.PI * (valueAngle / 180)));
valueP2Y = meterMiddleY - (radius1 * Math.sin(Math.PI * (valueAngle / 180)));
Line2D.Double line = new Line2D.Double(valueP1X, valueP1Y, valueP2X, valueP2Y);
g2.draw(line);
if (this.tickLabelsVisible && label) {
String tickLabel = this.tickLabelFormat.format(value);
g2.setFont(this.tickLabelFont);
g2.setPaint(this.tickLabelPaint);
FontMetrics fm = g2.getFontMetrics();
Rectangle2D tickLabelBounds = TextUtilities.getTextBounds(tickLabel, g2, fm);
double x = valueP2X;
double y = valueP2Y;
if (valueAngle == 90 || valueAngle == 270) {
x = x - tickLabelBounds.getWidth() / 2;
} else if (valueAngle < 90 || valueAngle > 270) {
x = x - tickLabelBounds.getWidth();
}
if ((valueAngle > 135 && valueAngle < 225) || valueAngle > 315 || valueAngle < 45) {
y = y - tickLabelBounds.getHeight() / 2;
} else {
y = y + tickLabelBounds.getHeight() / 2;
}
g2.drawString(tickLabel, (float) x, (float) y);
}
}
/**
* Returns the maximum of the relevant dimension (height or width) of the subcategory labels.
*
* @param g2 the graphics device.
* @param edge the edge.
* @return The maximum dimension.
*/
private double getMaxDim(Graphics2D g2, RectangleEdge edge) {
double result = 0.0;
g2.setFont(this.subLabelFont);
FontMetrics fm = g2.getFontMetrics();
Iterator iterator = this.subCategories.iterator();
while (iterator.hasNext()) {
Comparable subcategory = (Comparable) iterator.next();
String label = subcategory.toString();
Rectangle2D bounds = TextUtilities.getTextBounds(label, g2, fm);
double dim = 0.0;
if (RectangleEdge.isLeftOrRight(edge)) {
dim = bounds.getWidth();
} else { // must be top or bottom
dim = bounds.getHeight();
}
result = Math.max(result, dim);
}
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;
}
/**
* Draws the axis label.
*
* @param label the label text.
* @param g2 the graphics device.
* @param plotArea the plot area.
* @param dataArea the area inside the axes.
* @param edge the location of the axis.
* @param state the axis state (<code>null</code> not permitted).
* @return Information about the axis.
*/
protected AxisState drawLabel(
String label,
Graphics2D g2,
Rectangle2D plotArea,
Rectangle2D dataArea,
RectangleEdge edge,
AxisState state) {
// it is unlikely that 'state' will be null, but check anyway...
ParamChecks.nullNotPermitted(state, "state");
if ((label == null) || (label.equals(""))) {
return state;
}
Font font = getLabelFont();
RectangleInsets insets = getLabelInsets();
g2.setFont(font);
g2.setPaint(getLabelPaint());
FontMetrics fm = g2.getFontMetrics();
Rectangle2D labelBounds = TextUtilities.getTextBounds(label, g2, fm);
if (edge == RectangleEdge.TOP) {
AffineTransform t =
AffineTransform.getRotateInstance(
getLabelAngle(), labelBounds.getCenterX(), labelBounds.getCenterY());
Shape rotatedLabelBounds = t.createTransformedShape(labelBounds);
labelBounds = rotatedLabelBounds.getBounds2D();
double labelx = dataArea.getCenterX();
double labely = state.getCursor() - insets.getBottom() - labelBounds.getHeight() / 2.0;
TextUtilities.drawRotatedString(
label,
g2,
(float) labelx,
(float) labely,
TextAnchor.CENTER,
getLabelAngle(),
TextAnchor.CENTER);
state.cursorUp(insets.getTop() + labelBounds.getHeight() + insets.getBottom());
} else if (edge == RectangleEdge.BOTTOM) {
AffineTransform t =
AffineTransform.getRotateInstance(
getLabelAngle(), labelBounds.getCenterX(), labelBounds.getCenterY());
Shape rotatedLabelBounds = t.createTransformedShape(labelBounds);
labelBounds = rotatedLabelBounds.getBounds2D();
double labelx = dataArea.getCenterX();
double labely = state.getCursor() + insets.getTop() + labelBounds.getHeight() / 2.0;
TextUtilities.drawRotatedString(
label,
g2,
(float) labelx,
(float) labely,
TextAnchor.CENTER,
getLabelAngle(),
TextAnchor.CENTER);
state.cursorDown(insets.getTop() + labelBounds.getHeight() + insets.getBottom());
} else if (edge == RectangleEdge.LEFT) {
AffineTransform t =
AffineTransform.getRotateInstance(
getLabelAngle() - Math.PI / 2.0, labelBounds.getCenterX(), labelBounds.getCenterY());
Shape rotatedLabelBounds = t.createTransformedShape(labelBounds);
labelBounds = rotatedLabelBounds.getBounds2D();
double labelx = state.getCursor() - insets.getRight() - labelBounds.getWidth() / 2.0;
double labely = dataArea.getCenterY();
TextUtilities.drawRotatedString(
label,
g2,
(float) labelx,
(float) labely,
TextAnchor.CENTER,
getLabelAngle() - Math.PI / 2.0,
TextAnchor.CENTER);
state.cursorLeft(insets.getLeft() + labelBounds.getWidth() + insets.getRight());
} else if (edge == RectangleEdge.RIGHT) {
AffineTransform t =
AffineTransform.getRotateInstance(
getLabelAngle() + Math.PI / 2.0, labelBounds.getCenterX(), labelBounds.getCenterY());
Shape rotatedLabelBounds = t.createTransformedShape(labelBounds);
labelBounds = rotatedLabelBounds.getBounds2D();
double labelx = state.getCursor() + insets.getLeft() + labelBounds.getWidth() / 2.0;
double labely = dataArea.getY() + dataArea.getHeight() / 2.0;
TextUtilities.drawRotatedString(
label,
g2,
(float) labelx,
(float) labely,
TextAnchor.CENTER,
getLabelAngle() + Math.PI / 2.0,
TextAnchor.CENTER);
state.cursorRight(insets.getLeft() + labelBounds.getWidth() + insets.getRight());
}
return state;
}
/**
* Draws the tick labels for one "band" of time periods.
*
* @param band the band index (zero-based).
* @param g2 the graphics device.
* @param state the axis state.
* @param dataArea the data area.
* @param edge the edge where the axis is located.
* @return The updated axis state.
*/
protected AxisState drawTickLabels(
int band, Graphics2D g2, AxisState state, Rectangle2D dataArea, RectangleEdge edge) {
// work out the initial gap
double delta1 = 0.0;
FontMetrics fm = g2.getFontMetrics(this.labelInfo[band].getLabelFont());
if (edge == RectangleEdge.BOTTOM) {
delta1 = this.labelInfo[band].getPadding().calculateTopOutset(fm.getHeight());
} else if (edge == RectangleEdge.TOP) {
delta1 = this.labelInfo[band].getPadding().calculateBottomOutset(fm.getHeight());
}
state.moveCursor(delta1, edge);
long axisMin = this.first.getFirstMillisecond();
long axisMax = this.last.getLastMillisecond();
g2.setFont(this.labelInfo[band].getLabelFont());
g2.setPaint(this.labelInfo[band].getLabelPaint());
// work out the number of periods to skip for labelling
RegularTimePeriod p1 =
this.labelInfo[band].createInstance(new Date(axisMin), this.timeZone, this.locale);
RegularTimePeriod p2 =
this.labelInfo[band].createInstance(new Date(axisMax), this.timeZone, this.locale);
String label1 =
this.labelInfo[band].getDateFormat().format(new Date(p1.getMiddleMillisecond()));
String label2 =
this.labelInfo[band].getDateFormat().format(new Date(p2.getMiddleMillisecond()));
Rectangle2D b1 = TextUtilities.getTextBounds(label1, g2, g2.getFontMetrics());
Rectangle2D b2 = TextUtilities.getTextBounds(label2, g2, g2.getFontMetrics());
double w = Math.max(b1.getWidth(), b2.getWidth());
long ww = Math.round(java2DToValue(dataArea.getX() + w + 5.0, dataArea, edge));
if (isInverted()) {
ww = axisMax - ww;
} else {
ww = ww - axisMin;
}
long length = p1.getLastMillisecond() - p1.getFirstMillisecond();
int periods = (int) (ww / length) + 1;
RegularTimePeriod p =
this.labelInfo[band].createInstance(new Date(axisMin), this.timeZone, this.locale);
Rectangle2D b = null;
long lastXX = 0L;
float y = (float) (state.getCursor());
TextAnchor anchor = TextAnchor.TOP_CENTER;
float yDelta = (float) b1.getHeight();
if (edge == RectangleEdge.TOP) {
anchor = TextAnchor.BOTTOM_CENTER;
yDelta = -yDelta;
}
while (p.getFirstMillisecond() <= axisMax) {
float x = (float) valueToJava2D(p.getMiddleMillisecond(), dataArea, edge);
DateFormat df = this.labelInfo[band].getDateFormat();
String label = df.format(new Date(p.getMiddleMillisecond()));
long first = p.getFirstMillisecond();
long last = p.getLastMillisecond();
if (last > axisMax) {
// this is the last period, but it is only partially visible
// so check that the label will fit before displaying it...
Rectangle2D bb = TextUtilities.getTextBounds(label, g2, g2.getFontMetrics());
if ((x + bb.getWidth() / 2) > dataArea.getMaxX()) {
float xstart = (float) valueToJava2D(Math.max(first, axisMin), dataArea, edge);
if (bb.getWidth() < (dataArea.getMaxX() - xstart)) {
x = ((float) dataArea.getMaxX() + xstart) / 2.0f;
} else {
label = null;
}
}
}
if (first < axisMin) {
// this is the first period, but it is only partially visible
// so check that the label will fit before displaying it...
Rectangle2D bb = TextUtilities.getTextBounds(label, g2, g2.getFontMetrics());
if ((x - bb.getWidth() / 2) < dataArea.getX()) {
float xlast = (float) valueToJava2D(Math.min(last, axisMax), dataArea, edge);
if (bb.getWidth() < (xlast - dataArea.getX())) {
x = (xlast + (float) dataArea.getX()) / 2.0f;
} else {
label = null;
}
}
}
if (label != null) {
g2.setPaint(this.labelInfo[band].getLabelPaint());
b = TextUtilities.drawAlignedString(label, g2, x, y, anchor);
}
if (lastXX > 0L) {
if (this.labelInfo[band].getDrawDividers()) {
long nextXX = p.getFirstMillisecond();
long mid = (lastXX + nextXX) / 2;
float mid2d = (float) valueToJava2D(mid, dataArea, edge);
g2.setStroke(this.labelInfo[band].getDividerStroke());
g2.setPaint(this.labelInfo[band].getDividerPaint());
g2.draw(new Line2D.Float(mid2d, y, mid2d, y + yDelta));
}
}
lastXX = last;
for (int i = 0; i < periods; i++) {
p = p.next();
}
p.peg(this.calendar);
}
double used = 0.0;
if (b != null) {
used = b.getHeight();
// work out the trailing gap
if (edge == RectangleEdge.BOTTOM) {
used += this.labelInfo[band].getPadding().calculateBottomOutset(fm.getHeight());
} else if (edge == RectangleEdge.TOP) {
used += this.labelInfo[band].getPadding().calculateTopOutset(fm.getHeight());
}
}
state.moveCursor(used, edge);
return state;
}