Java源码示例：org.jfree.data.time.DateRange
示例1
/**
* Test that the setRange() method works.
*/
@Test
public void testSetRange() {
DateAxis axis = new DateAxis("Test Axis");
Calendar calendar = Calendar.getInstance();
calendar.set(1999, Calendar.JANUARY, 3);
Date d1 = calendar.getTime();
calendar.set(1999, Calendar.JANUARY, 31);
Date d2 = calendar.getTime();
axis.setRange(d1, d2);
DateRange range = (DateRange) axis.getRange();
assertEquals(d1, range.getLowerDate());
assertEquals(d2, range.getUpperDate());
}
示例2
/**
* Test that the setRange() method works.
*/
@Test
public void testSetRange() {
DateAxis axis = new DateAxis("Test Axis");
Calendar calendar = Calendar.getInstance();
calendar.set(1999, Calendar.JANUARY, 3);
Date d1 = calendar.getTime();
calendar.set(1999, Calendar.JANUARY, 31);
Date d2 = calendar.getTime();
axis.setRange(d1, d2);
DateRange range = (DateRange) axis.getRange();
assertEquals(d1, range.getLowerDate());
assertEquals(d2, range.getUpperDate());
}
示例3
/**
* Test that the setRange() method works.
*/
@Test
public void testSetRange() {
DateAxis axis = new DateAxis("Test Axis");
Calendar calendar = Calendar.getInstance();
calendar.set(1999, Calendar.JANUARY, 3);
Date d1 = calendar.getTime();
calendar.set(1999, Calendar.JANUARY, 31);
Date d2 = calendar.getTime();
axis.setRange(d1, d2);
DateRange range = (DateRange) axis.getRange();
assertEquals(d1, range.getLowerDate());
assertEquals(d2, range.getUpperDate());
}
示例4
/**
* Test that the setRange() method works.
*/
@Test
public void testSetRange() {
DateAxis axis = new DateAxis("Test Axis");
Calendar calendar = Calendar.getInstance();
calendar.set(1999, Calendar.JANUARY, 3);
Date d1 = calendar.getTime();
calendar.set(1999, Calendar.JANUARY, 31);
Date d2 = calendar.getTime();
axis.setRange(d1, d2);
DateRange range = (DateRange) axis.getRange();
assertEquals(d1, range.getLowerDate());
assertEquals(d2, range.getUpperDate());
}
示例5
/**
* Test that the setRange() method works.
*/
public void testSetRange() {
DateAxis axis = new DateAxis("Test Axis");
Calendar calendar = Calendar.getInstance();
calendar.set(1999, Calendar.JANUARY, 3);
Date d1 = calendar.getTime();
calendar.set(1999, Calendar.JANUARY, 31);
Date d2 = calendar.getTime();
axis.setRange(d1, d2);
DateRange range = (DateRange) axis.getRange();
assertEquals(d1, range.getLowerDate());
assertEquals(d2, range.getUpperDate());
}
示例6
/**
* Test that the setRange() method works.
*/
public void testSetRange() {
DateAxis axis = new DateAxis("Test Axis");
Calendar calendar = Calendar.getInstance();
calendar.set(1999, Calendar.JANUARY, 3);
Date d1 = calendar.getTime();
calendar.set(1999, Calendar.JANUARY, 31);
Date d2 = calendar.getTime();
axis.setRange(d1, d2);
DateRange range = (DateRange) axis.getRange();
assertEquals(d1, range.getLowerDate());
assertEquals(d2, range.getUpperDate());
}
示例7
/**
* Test that the setRange() method works.
*/
@Test
public void testSetRange() {
DateAxis axis = new DateAxis("Test Axis");
Calendar calendar = Calendar.getInstance();
calendar.set(1999, Calendar.JANUARY, 3);
Date d1 = calendar.getTime();
calendar.set(1999, Calendar.JANUARY, 31);
Date d2 = calendar.getTime();
axis.setRange(d1, d2);
DateRange range = (DateRange) axis.getRange();
assertEquals(d1, range.getLowerDate());
assertEquals(d2, range.getUpperDate());
}
示例8
/**
* A test for bug 1932146.
*/
@Test
public void test1932146() {
PeriodAxis axis = new PeriodAxis("TestAxis");
axis.addChangeListener(this);
this.lastEvent = null;
axis.setRange(new DateRange(0L, 1000L));
assertTrue(this.lastEvent != null);
}
示例9
/**
* Sets the axis range and sends an {@link AxisChangeEvent} to all
* registered listeners.
*
* @param lower the lower bound for the axis.
* @param upper the upper bound for the axis.
*/
@Override
public void setRange(double lower, double upper) {
if (lower >= upper) {
throw new IllegalArgumentException("Requires 'lower' < 'upper'.");
}
setRange(new DateRange(lower, upper));
}
示例10
/**
* Translates the data value to the display coordinates (Java 2D User Space)
* of the chart.
*
* @param value the date to be plotted.
* @param area the rectangle (in Java2D space) where the data is to be
* plotted.
* @param edge the axis location.
*
* @return The coordinate corresponding to the supplied data value.
*/
@Override
public double valueToJava2D(double value, Rectangle2D area,
RectangleEdge edge) {
value = this.timeline.toTimelineValue((long) value);
DateRange range = (DateRange) getRange();
double axisMin = this.timeline.toTimelineValue(range.getLowerMillis());
double axisMax = this.timeline.toTimelineValue(range.getUpperMillis());
double result = 0.0;
if (RectangleEdge.isTopOrBottom(edge)) {
double minX = area.getX();
double maxX = area.getMaxX();
if (isInverted()) {
result = maxX + ((value - axisMin) / (axisMax - axisMin))
* (minX - maxX);
}
else {
result = minX + ((value - axisMin) / (axisMax - axisMin))
* (maxX - minX);
}
}
else if (RectangleEdge.isLeftOrRight(edge)) {
double minY = area.getMinY();
double maxY = area.getMaxY();
if (isInverted()) {
result = minY + (((value - axisMin) / (axisMax - axisMin))
* (maxY - minY));
}
else {
result = maxY - (((value - axisMin) / (axisMax - axisMin))
* (maxY - minY));
}
}
return result;
}
示例11
/**
* Translates a Java2D coordinate into the corresponding data value. To
* perform this translation, you need to know the area used for plotting
* data, and which edge the axis is located on.
*
* @param java2DValue the coordinate in Java2D space.
* @param area the rectangle (in Java2D space) where the data is to be
* plotted.
* @param edge the axis location.
*
* @return A data value.
*/
@Override
public double java2DToValue(double java2DValue, Rectangle2D area,
RectangleEdge edge) {
DateRange range = (DateRange) getRange();
double axisMin = this.timeline.toTimelineValue(range.getLowerMillis());
double axisMax = this.timeline.toTimelineValue(range.getUpperMillis());
double min = 0.0;
double max = 0.0;
if (RectangleEdge.isTopOrBottom(edge)) {
min = area.getX();
max = area.getMaxX();
}
else if (RectangleEdge.isLeftOrRight(edge)) {
min = area.getMaxY();
max = area.getY();
}
double result;
if (isInverted()) {
result = axisMax - ((java2DValue - min) / (max - min)
* (axisMax - axisMin));
}
else {
result = axisMin + ((java2DValue - min) / (max - min)
* (axisMax - axisMin));
}
return this.timeline.toMillisecond((long) result);
}
示例12
/**
* 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.
*/
private double estimateMaximumTickLabelWidth(Graphics2D g2,
DateTickUnit unit) {
RectangleInsets tickLabelInsets = getTickLabelInsets();
double result = tickLabelInsets.getLeft() + tickLabelInsets.getRight();
Font tickLabelFont = getTickLabelFont();
FontRenderContext frc = g2.getFontRenderContext();
LineMetrics lm = tickLabelFont.getLineMetrics("ABCxyz", frc);
if (isVerticalTickLabels()) {
// all tick labels have the same width (equal to the height of
// the font)...
result += lm.getHeight();
}
else {
// look at lower and upper bounds...
DateRange range = (DateRange) getRange();
Date lower = range.getLowerDate();
Date upper = range.getUpperDate();
String lowerStr, upperStr;
DateFormat formatter = getDateFormatOverride();
if (formatter != null) {
lowerStr = formatter.format(lower);
upperStr = formatter.format(upper);
}
else {
lowerStr = unit.dateToString(lower);
upperStr = unit.dateToString(upper);
}
FontMetrics fm = g2.getFontMetrics(tickLabelFont);
double w1 = fm.stringWidth(lowerStr);
double w2 = fm.stringWidth(upperStr);
result += Math.max(w1, w2);
}
return result;
}
示例13
/**
* 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.
*/
private double estimateMaximumTickLabelHeight(Graphics2D g2,
DateTickUnit unit) {
RectangleInsets tickLabelInsets = getTickLabelInsets();
double result = tickLabelInsets.getTop() + tickLabelInsets.getBottom();
Font tickLabelFont = getTickLabelFont();
FontRenderContext frc = g2.getFontRenderContext();
LineMetrics lm = tickLabelFont.getLineMetrics("ABCxyz", frc);
if (!isVerticalTickLabels()) {
// all tick labels have the same width (equal to the height of
// the font)...
result += lm.getHeight();
}
else {
// look at lower and upper bounds...
DateRange range = (DateRange) getRange();
Date lower = range.getLowerDate();
Date upper = range.getUpperDate();
String lowerStr, upperStr;
DateFormat formatter = getDateFormatOverride();
if (formatter != null) {
lowerStr = formatter.format(lower);
upperStr = formatter.format(upper);
}
else {
lowerStr = unit.dateToString(lower);
upperStr = unit.dateToString(upper);
}
FontMetrics fm = g2.getFontMetrics(tickLabelFont);
double w1 = fm.stringWidth(lowerStr);
double w2 = fm.stringWidth(upperStr);
result += Math.max(w1, w2);
}
return result;
}
示例14
/**
* A test for bug 1932146.
*/
@Test
public void test1932146() {
PeriodAxis axis = new PeriodAxis("TestAxis");
axis.addChangeListener(this);
this.lastEvent = null;
axis.setRange(new DateRange(0L, 1000L));
assertTrue(this.lastEvent != null);
}
示例15
/**
* Sets the axis range and sends an {@link AxisChangeEvent} to all
* registered listeners.
*
* @param lower the lower bound for the axis.
* @param upper the upper bound for the axis.
*/
@Override
public void setRange(double lower, double upper) {
if (lower >= upper) {
throw new IllegalArgumentException("Requires 'lower' < 'upper'.");
}
setRange(new DateRange(lower, upper));
}
示例16
/**
* Translates the data value to the display coordinates (Java 2D User Space)
* of the chart.
*
* @param value the date to be plotted.
* @param area the rectangle (in Java2D space) where the data is to be
* plotted.
* @param edge the axis location.
*
* @return The coordinate corresponding to the supplied data value.
*/
@Override
public double valueToJava2D(double value, Rectangle2D area,
RectangleEdge edge) {
value = this.timeline.toTimelineValue((long) value);
DateRange range = (DateRange) getRange();
double axisMin = this.timeline.toTimelineValue(range.getLowerMillis());
double axisMax = this.timeline.toTimelineValue(range.getUpperMillis());
double result = 0.0;
if (RectangleEdge.isTopOrBottom(edge)) {
double minX = area.getX();
double maxX = area.getMaxX();
if (isInverted()) {
result = maxX + ((value - axisMin) / (axisMax - axisMin))
* (minX - maxX);
}
else {
result = minX + ((value - axisMin) / (axisMax - axisMin))
* (maxX - minX);
}
}
else if (RectangleEdge.isLeftOrRight(edge)) {
double minY = area.getMinY();
double maxY = area.getMaxY();
if (isInverted()) {
result = minY + (((value - axisMin) / (axisMax - axisMin))
* (maxY - minY));
}
else {
result = maxY - (((value - axisMin) / (axisMax - axisMin))
* (maxY - minY));
}
}
return result;
}
示例17
/**
* Translates a Java2D coordinate into the corresponding data value. To
* perform this translation, you need to know the area used for plotting
* data, and which edge the axis is located on.
*
* @param java2DValue the coordinate in Java2D space.
* @param area the rectangle (in Java2D space) where the data is to be
* plotted.
* @param edge the axis location.
*
* @return A data value.
*/
@Override
public double java2DToValue(double java2DValue, Rectangle2D area,
RectangleEdge edge) {
DateRange range = (DateRange) getRange();
double axisMin = this.timeline.toTimelineValue(range.getLowerMillis());
double axisMax = this.timeline.toTimelineValue(range.getUpperMillis());
double min = 0.0;
double max = 0.0;
if (RectangleEdge.isTopOrBottom(edge)) {
min = area.getX();
max = area.getMaxX();
}
else if (RectangleEdge.isLeftOrRight(edge)) {
min = area.getMaxY();
max = area.getY();
}
double result;
if (isInverted()) {
result = axisMax - ((java2DValue - min) / (max - min)
* (axisMax - axisMin));
}
else {
result = axisMin + ((java2DValue - min) / (max - min)
* (axisMax - axisMin));
}
return this.timeline.toMillisecond((long) result);
}
示例18
/**
* 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.
*/
private double estimateMaximumTickLabelWidth(Graphics2D g2,
DateTickUnit unit) {
RectangleInsets tickLabelInsets = getTickLabelInsets();
double result = tickLabelInsets.getLeft() + tickLabelInsets.getRight();
Font tickLabelFont = getTickLabelFont();
FontRenderContext frc = g2.getFontRenderContext();
LineMetrics lm = tickLabelFont.getLineMetrics("ABCxyz", frc);
if (isVerticalTickLabels()) {
// all tick labels have the same width (equal to the height of
// the font)...
result += lm.getHeight();
}
else {
// look at lower and upper bounds...
DateRange range = (DateRange) getRange();
Date lower = range.getLowerDate();
Date upper = range.getUpperDate();
String lowerStr, upperStr;
DateFormat formatter = getDateFormatOverride();
if (formatter != null) {
lowerStr = formatter.format(lower);
upperStr = formatter.format(upper);
}
else {
lowerStr = unit.dateToString(lower);
upperStr = unit.dateToString(upper);
}
FontMetrics fm = g2.getFontMetrics(tickLabelFont);
double w1 = fm.stringWidth(lowerStr);
double w2 = fm.stringWidth(upperStr);
result += Math.max(w1, w2);
}
return result;
}
示例19
/**
* 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.
*/
private double estimateMaximumTickLabelHeight(Graphics2D g2,
DateTickUnit unit) {
RectangleInsets tickLabelInsets = getTickLabelInsets();
double result = tickLabelInsets.getTop() + tickLabelInsets.getBottom();
Font tickLabelFont = getTickLabelFont();
FontRenderContext frc = g2.getFontRenderContext();
LineMetrics lm = tickLabelFont.getLineMetrics("ABCxyz", frc);
if (!isVerticalTickLabels()) {
// all tick labels have the same width (equal to the height of
// the font)...
result += lm.getHeight();
}
else {
// look at lower and upper bounds...
DateRange range = (DateRange) getRange();
Date lower = range.getLowerDate();
Date upper = range.getUpperDate();
String lowerStr, upperStr;
DateFormat formatter = getDateFormatOverride();
if (formatter != null) {
lowerStr = formatter.format(lower);
upperStr = formatter.format(upper);
}
else {
lowerStr = unit.dateToString(lower);
upperStr = unit.dateToString(upper);
}
FontMetrics fm = g2.getFontMetrics(tickLabelFont);
double w1 = fm.stringWidth(lowerStr);
double w2 = fm.stringWidth(upperStr);
result += Math.max(w1, w2);
}
return result;
}
示例20
/**
* A test for bug 1932146.
*/
@Test
public void test1932146() {
PeriodAxis axis = new PeriodAxis("TestAxis");
axis.addChangeListener(this);
this.lastEvent = null;
axis.setRange(new DateRange(0L, 1000L));
assertTrue(this.lastEvent != null);
}
示例21
/**
* Sets the axis range and sends an {@link AxisChangeEvent} to all
* registered listeners.
*
* @param lower the lower bound for the axis.
* @param upper the upper bound for the axis.
*/
@Override
public void setRange(double lower, double upper) {
if (lower >= upper) {
throw new IllegalArgumentException("Requires 'lower' < 'upper'.");
}
setRange(new DateRange(lower, upper));
}
示例22
/**
* Translates the data value to the display coordinates (Java 2D User Space)
* of the chart.
*
* @param value the date to be plotted.
* @param area the rectangle (in Java2D space) where the data is to be
* plotted.
* @param edge the axis location.
*
* @return The coordinate corresponding to the supplied data value.
*/
@Override
public double valueToJava2D(double value, Rectangle2D area,
RectangleEdge edge) {
value = this.timeline.toTimelineValue((long) value);
DateRange range = (DateRange) getRange();
double axisMin = this.timeline.toTimelineValue(range.getLowerMillis());
double axisMax = this.timeline.toTimelineValue(range.getUpperMillis());
double result = 0.0;
if (RectangleEdge.isTopOrBottom(edge)) {
double minX = area.getX();
double maxX = area.getMaxX();
if (isInverted()) {
result = maxX + ((value - axisMin) / (axisMax - axisMin))
* (minX - maxX);
}
else {
result = minX + ((value - axisMin) / (axisMax - axisMin))
* (maxX - minX);
}
}
else if (RectangleEdge.isLeftOrRight(edge)) {
double minY = area.getMinY();
double maxY = area.getMaxY();
if (isInverted()) {
result = minY + (((value - axisMin) / (axisMax - axisMin))
* (maxY - minY));
}
else {
result = maxY - (((value - axisMin) / (axisMax - axisMin))
* (maxY - minY));
}
}
return result;
}
示例23
/**
* Translates a Java2D coordinate into the corresponding data value. To
* perform this translation, you need to know the area used for plotting
* data, and which edge the axis is located on.
*
* @param java2DValue the coordinate in Java2D space.
* @param area the rectangle (in Java2D space) where the data is to be
* plotted.
* @param edge the axis location.
*
* @return A data value.
*/
@Override
public double java2DToValue(double java2DValue, Rectangle2D area,
RectangleEdge edge) {
DateRange range = (DateRange) getRange();
double axisMin = this.timeline.toTimelineValue(range.getLowerMillis());
double axisMax = this.timeline.toTimelineValue(range.getUpperMillis());
double min = 0.0;
double max = 0.0;
if (RectangleEdge.isTopOrBottom(edge)) {
min = area.getX();
max = area.getMaxX();
}
else if (RectangleEdge.isLeftOrRight(edge)) {
min = area.getMaxY();
max = area.getY();
}
double result;
if (isInverted()) {
result = axisMax - ((java2DValue - min) / (max - min)
* (axisMax - axisMin));
}
else {
result = axisMin + ((java2DValue - min) / (max - min)
* (axisMax - axisMin));
}
return this.timeline.toMillisecond((long) result);
}
示例24
/**
* 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.
*/
private double estimateMaximumTickLabelWidth(Graphics2D g2,
DateTickUnit unit) {
RectangleInsets tickLabelInsets = getTickLabelInsets();
double result = tickLabelInsets.getLeft() + tickLabelInsets.getRight();
Font tickLabelFont = getTickLabelFont();
FontRenderContext frc = g2.getFontRenderContext();
LineMetrics lm = tickLabelFont.getLineMetrics("ABCxyz", frc);
if (isVerticalTickLabels()) {
// all tick labels have the same width (equal to the height of
// the font)...
result += lm.getHeight();
}
else {
// look at lower and upper bounds...
DateRange range = (DateRange) getRange();
Date lower = range.getLowerDate();
Date upper = range.getUpperDate();
String lowerStr, upperStr;
DateFormat formatter = getDateFormatOverride();
if (formatter != null) {
lowerStr = formatter.format(lower);
upperStr = formatter.format(upper);
}
else {
lowerStr = unit.dateToString(lower);
upperStr = unit.dateToString(upper);
}
FontMetrics fm = g2.getFontMetrics(tickLabelFont);
double w1 = fm.stringWidth(lowerStr);
double w2 = fm.stringWidth(upperStr);
result += Math.max(w1, w2);
}
return result;
}
示例25
/**
* 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.
*/
private double estimateMaximumTickLabelHeight(Graphics2D g2,
DateTickUnit unit) {
RectangleInsets tickLabelInsets = getTickLabelInsets();
double result = tickLabelInsets.getTop() + tickLabelInsets.getBottom();
Font tickLabelFont = getTickLabelFont();
FontRenderContext frc = g2.getFontRenderContext();
LineMetrics lm = tickLabelFont.getLineMetrics("ABCxyz", frc);
if (!isVerticalTickLabels()) {
// all tick labels have the same width (equal to the height of
// the font)...
result += lm.getHeight();
}
else {
// look at lower and upper bounds...
DateRange range = (DateRange) getRange();
Date lower = range.getLowerDate();
Date upper = range.getUpperDate();
String lowerStr, upperStr;
DateFormat formatter = getDateFormatOverride();
if (formatter != null) {
lowerStr = formatter.format(lower);
upperStr = formatter.format(upper);
}
else {
lowerStr = unit.dateToString(lower);
upperStr = unit.dateToString(upper);
}
FontMetrics fm = g2.getFontMetrics(tickLabelFont);
double w1 = fm.stringWidth(lowerStr);
double w2 = fm.stringWidth(upperStr);
result += Math.max(w1, w2);
}
return result;
}
示例26
/**
* A test for bug 1932146.
*/
@Test
public void test1932146() {
PeriodAxis axis = new PeriodAxis("TestAxis");
axis.addChangeListener(this);
this.lastEvent = null;
axis.setRange(new DateRange(0L, 1000L));
assertTrue(this.lastEvent != null);
}
示例27
/**
* Sets the axis range and sends an {@link AxisChangeEvent} to all
* registered listeners.
*
* @param lower the lower bound for the axis.
* @param upper the upper bound for the axis.
*/
@Override
public void setRange(double lower, double upper) {
if (lower >= upper) {
throw new IllegalArgumentException("Requires 'lower' < 'upper'.");
}
setRange(new DateRange(lower, upper));
}
示例28
/**
* Translates the data value to the display coordinates (Java 2D User Space)
* of the chart.
*
* @param value the date to be plotted.
* @param area the rectangle (in Java2D space) where the data is to be
* plotted.
* @param edge the axis location.
*
* @return The coordinate corresponding to the supplied data value.
*/
@Override
public double valueToJava2D(double value, Rectangle2D area,
RectangleEdge edge) {
value = this.timeline.toTimelineValue((long) value);
DateRange range = (DateRange) getRange();
double axisMin = this.timeline.toTimelineValue(range.getLowerMillis());
double axisMax = this.timeline.toTimelineValue(range.getUpperMillis());
double result = 0.0;
if (RectangleEdge.isTopOrBottom(edge)) {
double minX = area.getX();
double maxX = area.getMaxX();
if (isInverted()) {
result = maxX + ((value - axisMin) / (axisMax - axisMin))
* (minX - maxX);
}
else {
result = minX + ((value - axisMin) / (axisMax - axisMin))
* (maxX - minX);
}
}
else if (RectangleEdge.isLeftOrRight(edge)) {
double minY = area.getMinY();
double maxY = area.getMaxY();
if (isInverted()) {
result = minY + (((value - axisMin) / (axisMax - axisMin))
* (maxY - minY));
}
else {
result = maxY - (((value - axisMin) / (axisMax - axisMin))
* (maxY - minY));
}
}
return result;
}
示例29
/**
* Translates a Java2D coordinate into the corresponding data value. To
* perform this translation, you need to know the area used for plotting
* data, and which edge the axis is located on.
*
* @param java2DValue the coordinate in Java2D space.
* @param area the rectangle (in Java2D space) where the data is to be
* plotted.
* @param edge the axis location.
*
* @return A data value.
*/
@Override
public double java2DToValue(double java2DValue, Rectangle2D area,
RectangleEdge edge) {
DateRange range = (DateRange) getRange();
double axisMin = this.timeline.toTimelineValue(range.getLowerMillis());
double axisMax = this.timeline.toTimelineValue(range.getUpperMillis());
double min = 0.0;
double max = 0.0;
if (RectangleEdge.isTopOrBottom(edge)) {
min = area.getX();
max = area.getMaxX();
}
else if (RectangleEdge.isLeftOrRight(edge)) {
min = area.getMaxY();
max = area.getY();
}
double result;
if (isInverted()) {
result = axisMax - ((java2DValue - min) / (max - min)
* (axisMax - axisMin));
}
else {
result = axisMin + ((java2DValue - min) / (max - min)
* (axisMax - axisMin));
}
return this.timeline.toMillisecond((long) result);
}
示例30
/**
* 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.
*/
private double estimateMaximumTickLabelWidth(Graphics2D g2,
DateTickUnit unit) {
RectangleInsets tickLabelInsets = getTickLabelInsets();
double result = tickLabelInsets.getLeft() + tickLabelInsets.getRight();
Font tickLabelFont = getTickLabelFont();
FontRenderContext frc = g2.getFontRenderContext();
LineMetrics lm = tickLabelFont.getLineMetrics("ABCxyz", frc);
if (isVerticalTickLabels()) {
// all tick labels have the same width (equal to the height of
// the font)...
result += lm.getHeight();
}
else {
// look at lower and upper bounds...
DateRange range = (DateRange) getRange();
Date lower = range.getLowerDate();
Date upper = range.getUpperDate();
String lowerStr, upperStr;
DateFormat formatter = getDateFormatOverride();
if (formatter != null) {
lowerStr = formatter.format(lower);
upperStr = formatter.format(upper);
}
else {
lowerStr = unit.dateToString(lower);
upperStr = unit.dateToString(upper);
}
FontMetrics fm = g2.getFontMetrics(tickLabelFont);
double w1 = fm.stringWidth(lowerStr);
double w2 = fm.stringWidth(upperStr);
result += Math.max(w1, w2);
}
return result;
}
