Java RectangleEdge.isLeftOrRight方法代码示例

import org.jfree.chart.ui.RectangleEdge; //导入方法依赖的package包/类
/**
 * 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 = TextUtils.getTextBounds(label, g2, fm);
        double dim;
        if (RectangleEdge.isLeftOrRight(edge)) {
            dim = bounds.getWidth();
        }
        else {  // must be top or bottom
            dim = bounds.getHeight();
        }
        result = Math.max(result, dim);
    }
    return result;
}
 

import org.jfree.chart.ui.RectangleEdge; //导入方法依赖的package包/类
/**
 * Estimates the space required for the axis, given a specific drawing area.
 *
 * @param g2  the graphics device (used to obtain font information).
 * @param plot  the plot that the axis belongs to.
 * @param plotArea  the area within which the axis should be drawn.
 * @param edge  the axis location (top or bottom).
 * @param space  the space already reserved.
 *
 * @return The space required to draw the axis.
 */
@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;
    }

    space = super.reserveSpace(g2, plot, plotArea, edge, space);
    double maxdim = getMaxDim(g2, edge);
    if (RectangleEdge.isTopOrBottom(edge)) {
        space.add(maxdim, edge);
    }
    else if (RectangleEdge.isLeftOrRight(edge)) {
        space.add(maxdim, edge);
    }
    return space;
}
 

import org.jfree.chart.ui.RectangleEdge; //导入方法依赖的package包/类
/**
 * Converts a length in data coordinates into the corresponding length in
 * Java2D coordinates.
 *
 * @param length  the length.
 * @param area  the plot area.
 * @param edge  the edge along which the axis lies.
 *
 * @return The length in Java2D coordinates.
 */
@Override
public double lengthToJava2D(double length, Rectangle2D area,
                             RectangleEdge edge) {
    double axisLength = 0.0;
    if (this.displayEnd > this.displayStart) {
        axisLength = this.displayEnd - this.displayStart;
    }
    else {
        axisLength = (this.fixedRange.getUpperBound() - this.displayStart)
            + (this.displayEnd - this.fixedRange.getLowerBound());
    }
    double areaLength;
    if (RectangleEdge.isLeftOrRight(edge)) {
        areaLength = area.getHeight();
    }
    else {
        areaLength = area.getWidth();
    }
    return (length / axisLength) * areaLength;
}
 

import org.jfree.chart.ui.RectangleEdge; //导入方法依赖的package包/类
/**
 * 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;
}
 

import org.jfree.chart.ui.RectangleEdge; //导入方法依赖的package包/类
/**
 * 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);
}
 

import org.jfree.chart.ui.RectangleEdge; //导入方法依赖的package包/类
/**
 * Selects an appropriate tick value for the axis.  The strategy is to
 * display as many ticks as possible (selected from an array of 'standard'
 * tick units) without the labels overlapping.
 *
 * @param g2  the graphics device.
 * @param dataArea  the area defined by the axes.
 * @param edge  the axis location.
 */
protected void selectAutoTickUnit(Graphics2D g2, Rectangle2D dataArea,
        RectangleEdge edge) {

    if (RectangleEdge.isTopOrBottom(edge)) {
        selectHorizontalAutoTickUnit(g2, dataArea, edge);
    }
    else if (RectangleEdge.isLeftOrRight(edge)) {
        selectVerticalAutoTickUnit(g2, dataArea, edge);
    }

}
 

import org.jfree.chart.ui.RectangleEdge; //导入方法依赖的package包/类
/**
 * Converts a data value to a coordinate in Java2D space, assuming that the
 * axis runs along one edge of the specified dataArea.
 * <p>
 * Note that it is possible for the coordinate to fall outside the plotArea.
 *
 * @param value  the data value.
 * @param area  the area for plotting the data.
 * @param edge  the axis location.
 *
 * @return The Java2D coordinate.
 *
 * @see #java2DToValue(double, Rectangle2D, RectangleEdge)
 */
@Override
public double valueToJava2D(double value, Rectangle2D area,
        RectangleEdge edge) {

    Range range = getRange();
    double axisMin = range.getLowerBound();
    double axisMax = range.getUpperBound();

    double min = 0.0;
    double max = 0.0;
    if (RectangleEdge.isTopOrBottom(edge)) {
        min = area.getX();
        max = area.getMaxX();
    }
    else if (RectangleEdge.isLeftOrRight(edge)) {
        max = area.getMinY();
        min = area.getMaxY();
    }
    if (isInverted()) {
        return max
               - ((value - axisMin) / (axisMax - axisMin)) * (max - min);
    }
    else {
        return min
               + ((value - axisMin) / (axisMax - axisMin)) * (max - min);
    }

}
 

import org.jfree.chart.ui.RectangleEdge; //导入方法依赖的package包/类
/**
 * Converts a coordinate in Java2D space to the corresponding data value,
 * assuming that the axis runs along one edge of the specified dataArea.
 *
 * @param java2DValue  the coordinate in Java2D space.
 * @param area  the area in which the data is plotted.
 * @param edge  the location.
 *
 * @return The data value.
 *
 * @see #valueToJava2D(double, Rectangle2D, RectangleEdge)
 */
@Override
public double java2DToValue(double java2DValue, Rectangle2D area,
        RectangleEdge edge) {

    Range range = getRange();
    double axisMin = range.getLowerBound();
    double axisMax = range.getUpperBound();

    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();
    }
    if (isInverted()) {
        return axisMax
               - (java2DValue - min) / (max - min) * (axisMax - axisMin);
    }
    else {
        return axisMin
               + (java2DValue - min) / (max - min) * (axisMax - axisMin);
    }

}
 

import org.jfree.chart.ui.RectangleEdge; //导入方法依赖的package包/类
/**
 * Calculates the positions of the tick labels for the axis, storing the
 * results in the tick label list (ready for drawing).
 *
 * @param g2  the graphics device.
 * @param state  the axis state.
 * @param dataArea  the area in which the plot should be drawn.
 * @param edge  the location of the axis.
 *
 * @return A list of ticks.
 */
@Override
public List refreshTicks(Graphics2D g2, AxisState state, 
        Rectangle2D dataArea, RectangleEdge edge) {

    List result = new java.util.ArrayList();
    if (RectangleEdge.isTopOrBottom(edge)) {
        result = refreshTicksHorizontal(g2, dataArea, edge);
    }
    else if (RectangleEdge.isLeftOrRight(edge)) {
        result = refreshTicksVertical(g2, dataArea, edge);
    }
    return result;

}
 

import org.jfree.chart.ui.RectangleEdge; //导入方法依赖的package包/类
/**
 * 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.
 */
@Override
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 = TextUtils.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;

}
 

import org.jfree.chart.ui.RectangleEdge; //导入方法依赖的package包/类
/**
 * Calculates the positions of the tick labels for the axis, storing the
 * results in the tick label list (ready for drawing).
 *
 * @param g2  the graphics device.
 * @param state  the axis state.
 * @param dataArea  the area in which the data should be drawn.
 * @param edge  the location of the axis.
 *
 * @return A list of ticks.
 */
@Override
public List refreshTicks(Graphics2D g2, AxisState state,
        Rectangle2D dataArea, RectangleEdge edge) {
    List ticks = null;
    if (RectangleEdge.isTopOrBottom(edge)) {
        ticks = refreshTicksHorizontal(g2, dataArea, edge);
    } else if (RectangleEdge.isLeftOrRight(edge)) {
        ticks = refreshTicksVertical(g2, dataArea, edge);
    }
    return ticks;
}
 

import org.jfree.chart.ui.RectangleEdge; //导入方法依赖的package包/类
/**
 * Translates a data value to a Java2D value for the second section of the
 * axis.
 *
 * @param value  the value.
 * @param area  the data area.
 * @param edge  the edge along which the axis lies.
 * @param length1  the length of the first section.
 * @param length2  the length of the second section.
 *
 * @return The Java2D coordinate.
 */
private double transEnd(double value, Rectangle2D area, RectangleEdge edge,
                        double length1, double length2) {
    double min = 0.0;
    double max = 0.0;
    if (RectangleEdge.isTopOrBottom(edge)) {
        max = area.getMaxX();
        min = area.getMaxX() - area.getWidth() * length2
              / (length1 + length2);
    }
    else if (RectangleEdge.isLeftOrRight(edge)) {
        max = area.getMinY();
        min = area.getMinY() + area.getHeight() * length2
              / (length1 + length2);
    }
    if (isInverted()) {
        return max - ((value - this.fixedRange.getLowerBound())
                / (this.displayEnd - this.fixedRange.getLowerBound()))
                * (max - min);
    }
    else {
        return min + ((value - this.fixedRange.getLowerBound())
                / (this.displayEnd - this.fixedRange.getLowerBound()))
                * (max - min);
    }

}
 

import org.jfree.chart.ui.RectangleEdge; //导入方法依赖的package包/类
/**
 * Calculates the positions of the tick labels for the axis, storing the
 * results in the tick label list (ready for drawing).
 *
 * @param g2  the graphics device.
 * @param state  the axis state.
 * @param dataArea  the area in which the plot should be drawn.
 * @param edge  the location of the axis.
 *
 * @return A list of ticks.
 */
@Override
public List refreshTicks(Graphics2D g2, AxisState state,
        Rectangle2D dataArea, RectangleEdge edge) {
    List result = new java.util.ArrayList();
    if (RectangleEdge.isTopOrBottom(edge)) {
        result = refreshTicksHorizontal(g2, dataArea, edge);
    }
    else if (RectangleEdge.isLeftOrRight(edge)) {
        result = refreshTicksVertical(g2, dataArea, edge);
    }
    return result;
}
 

import org.jfree.chart.ui.RectangleEdge; //导入方法依赖的package包/类
/**
 * Converts a data value to a coordinate in Java2D space, assuming that
 * the axis runs along one edge of the specified plotArea.
 * Note that it is possible for the coordinate to fall outside the
 * plotArea.
 *
 * @param value  the data value.
 * @param plotArea  the area for plotting the data.
 * @param edge  the axis location.
 *
 * @return The Java2D coordinate.
 */
@Override
public double valueToJava2D(double value, Rectangle2D plotArea,
                            RectangleEdge edge) {

    Range range = getRange();
    double axisMin = switchedLog10(range.getLowerBound());
    double axisMax = switchedLog10(range.getUpperBound());

    double min = 0.0;
    double max = 0.0;
    if (RectangleEdge.isTopOrBottom(edge)) {
        min = plotArea.getMinX();
        max = plotArea.getMaxX();
    }
    else if (RectangleEdge.isLeftOrRight(edge)) {
        min = plotArea.getMaxY();
        max = plotArea.getMinY();
    }

    value = switchedLog10(value);

    if (isInverted()) {
        return max - (((value - axisMin) / (axisMax - axisMin))
                * (max - min));
    }
    else {
        return min + (((value - axisMin) / (axisMax - axisMin))
                * (max - min));
    }

}
 

import org.jfree.chart.ui.RectangleEdge; //导入方法依赖的package包/类
/**
 * Estimates the space required for the axis, given a specific drawing area.
 *
 * @param g2  the graphics device (used to obtain font information).
 * @param plot  the plot that the axis belongs to.
 * @param plotArea  the area within which the axis should be drawn.
 * @param edge  the axis location (top or bottom).
 * @param space  the space already reserved.
 *
 * @return The space required to draw the axis.
 */
@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;
    }

    // calculate the max size of the tick labels (if visible)...
    double tickLabelHeight = 0.0;
    double tickLabelWidth = 0.0;
    if (isTickLabelsVisible()) {
        g2.setFont(getTickLabelFont());
        AxisState state = new AxisState();
        // we call refresh ticks just to get the maximum width or height
        refreshTicks(g2, state, plotArea, edge);
        if (edge == RectangleEdge.TOP) {
            tickLabelHeight = state.getMax();
        }
        else if (edge == RectangleEdge.BOTTOM) {
            tickLabelHeight = state.getMax();
        }
        else if (edge == RectangleEdge.LEFT) {
            tickLabelWidth = state.getMax();
        }
        else if (edge == RectangleEdge.RIGHT) {
            tickLabelWidth = state.getMax();
        }
    }

    // get the axis label size and update the space object...
    Rectangle2D labelEnclosure = getLabelEnclosure(g2, edge);
    double labelHeight, labelWidth;
    if (RectangleEdge.isTopOrBottom(edge)) {
        labelHeight = labelEnclosure.getHeight();
        space.add(labelHeight + tickLabelHeight
                + this.categoryLabelPositionOffset, edge);
    }
    else if (RectangleEdge.isLeftOrRight(edge)) {
        labelWidth = labelEnclosure.getWidth();
        space.add(labelWidth + tickLabelWidth
                + this.categoryLabelPositionOffset, edge);
    }
    return space;
}