Java TextBlockAnchor类代码示例

import org.jfree.text.TextBlockAnchor; //导入依赖的package包/类
/**
     * Draws a message to state that there is no data to plot.
     *
     * @param g2  the graphics device.
     * @param area  the area within which the plot should be drawn.
     */
    protected void drawNoDataMessage(Graphics2D g2, Rectangle2D area) {

        Shape savedClip = g2.getClip();
        g2.clip(area);
        String message = this.noDataMessage;
        if (message != null) {
            g2.setFont(this.noDataMessageFont);
            g2.setPaint(this.noDataMessagePaint);
//            FontMetrics fm = g2.getFontMetrics(this.noDataMessageFont);
//            Rectangle2D bounds = TextUtilities.getTextBounds(message, g2, fm);
//            float x = (float) (area.getX() + area.getWidth() / 2 - bounds.getWidth() / 2);
//            float y = (float) (area.getMinY() + (area.getHeight() / 2) - (bounds.getHeight() / 2));
//            g2.drawString(message, x, y);
            TextBlock block = TextUtilities.createTextBlock(
                this.noDataMessage, this.noDataMessageFont, this.noDataMessagePaint, 
                0.9f * (float) area.getWidth(), new G2TextMeasurer(g2)
            );
            block.draw(
                g2, (float) area.getCenterX(), (float) area.getCenterY(), TextBlockAnchor.CENTER
            );
        }
        g2.setClip(savedClip);

    }
 

import org.jfree.text.TextBlockAnchor; //导入依赖的package包/类
/**
 * Problem equals method.
 */
public void testEquals() {
    CategoryLabelPositions p1 = new CategoryLabelPositions(
        new CategoryLabelPosition(RectangleAnchor.TOP, TextBlockAnchor.CENTER), 
        new CategoryLabelPosition(RectangleAnchor.TOP, TextBlockAnchor.CENTER), 
        new CategoryLabelPosition(RectangleAnchor.TOP, TextBlockAnchor.CENTER), 
        new CategoryLabelPosition(RectangleAnchor.TOP, TextBlockAnchor.CENTER) 
    );
    CategoryLabelPositions p2 = new CategoryLabelPositions(
        new CategoryLabelPosition(RectangleAnchor.TOP, TextBlockAnchor.CENTER), 
        new CategoryLabelPosition(RectangleAnchor.TOP, TextBlockAnchor.CENTER), 
        new CategoryLabelPosition(RectangleAnchor.TOP, TextBlockAnchor.CENTER), 
        new CategoryLabelPosition(RectangleAnchor.TOP, TextBlockAnchor.CENTER) 
    );
    assertEquals(p1, p2);
}
 

import org.jfree.text.TextBlockAnchor; //导入依赖的package包/类
/**
 * Creates a new instance where the category labels angled upwards by the specified amount.
 * 
 * @param angle  the rotation angle (should be < Math.PI / 2.0).
 * 
 * @return A category label position specification.
 */
public static CategoryLabelPositions createUpRotationLabelPositions(double angle) {
    return new CategoryLabelPositions(
        new CategoryLabelPosition(
            RectangleAnchor.BOTTOM, TextBlockAnchor.BOTTOM_LEFT, 
            TextAnchor.BOTTOM_LEFT, -angle,
            CategoryLabelWidthType.RANGE, 0.50f
        ), // TOP
        new CategoryLabelPosition(
            RectangleAnchor.TOP, TextBlockAnchor.TOP_RIGHT, 
            TextAnchor.TOP_RIGHT, -angle,
            CategoryLabelWidthType.RANGE, 0.50f
        ), // BOTTOM
        new CategoryLabelPosition(
            RectangleAnchor.RIGHT, TextBlockAnchor.BOTTOM_RIGHT, 
            TextAnchor.BOTTOM_RIGHT, -angle,
            CategoryLabelWidthType.RANGE, 0.50f
        ), // LEFT
        new CategoryLabelPosition(
            RectangleAnchor.LEFT, TextBlockAnchor.TOP_LEFT, 
            TextAnchor.TOP_LEFT, -angle,
            CategoryLabelWidthType.RANGE, 0.50f
        ) // RIGHT
    );
}
 

import org.jfree.text.TextBlockAnchor; //导入依赖的package包/类
/**
 * Creates a new instance where the category labels angled downwards by the specified amount.
 * 
 * @param angle  the rotation angle (should be < Math.PI / 2.0).
 * 
 * @return A category label position specification.
 */
public static CategoryLabelPositions createDownRotationLabelPositions(double angle) {
    return new CategoryLabelPositions(
        new CategoryLabelPosition(
            RectangleAnchor.BOTTOM, TextBlockAnchor.BOTTOM_RIGHT, 
            TextAnchor.BOTTOM_RIGHT, angle,
            CategoryLabelWidthType.RANGE, 0.50f
        ), // TOP
        new CategoryLabelPosition(
            RectangleAnchor.TOP, TextBlockAnchor.TOP_LEFT, 
            TextAnchor.TOP_LEFT, angle,
            CategoryLabelWidthType.RANGE, 0.50f
        ), // BOTTOM
        new CategoryLabelPosition(
            RectangleAnchor.RIGHT, TextBlockAnchor.TOP_RIGHT, 
            TextAnchor.TOP_RIGHT, angle,
            CategoryLabelWidthType.RANGE, 0.50f
        ), // LEFT
        new CategoryLabelPosition(
            RectangleAnchor.LEFT, TextBlockAnchor.BOTTOM_LEFT, 
            TextAnchor.BOTTOM_LEFT, angle,
            CategoryLabelWidthType.RANGE, 0.50f
        ) // RIGHT
    );
}
 

import org.jfree.text.TextBlockAnchor; //导入依赖的package包/类
/**
 * Creates a new position record.  The item label anchor is a point relative to the
 * data item (dot, bar or other visual item) on a chart.  The item label is aligned
 * by aligning the text anchor with the item label anchor.
 * 
 * @param categoryAnchor  the category anchor (<code>null</code> not permitted).
 * @param labelAnchor  the label anchor (<code>null</code> not permitted).
 * @param rotationAnchor  the rotation anchor (<code>null</code> not permitted).
 * @param angle  the rotation angle (<code>null</code> not permitted).
 * 
 * @deprecated Use alternative constructor.
 */
public CategoryLabelPosition(RectangleAnchor categoryAnchor, 
                             TextBlockAnchor labelAnchor,
                             TextAnchor rotationAnchor,
                             double angle) {
    
    if (categoryAnchor == null) {
        throw new IllegalArgumentException("Null 'categoryAnchor' argument.");
    }
    if (labelAnchor == null) {
        throw new IllegalArgumentException("Null 'labelAnchor' argument.");
    }
    if (rotationAnchor == null) {
        throw new IllegalArgumentException("Null 'rotationAnchor' argument.");
    }
    
    this.categoryAnchor = categoryAnchor;
    this.labelAnchor = labelAnchor;
    this.rotationAnchor = rotationAnchor;
    this.angle = angle;
    this.widthType = CategoryLabelWidthType.CATEGORY;
    this.widthRatio = 0.90f;

}
 

import org.jfree.text.TextBlockAnchor; //导入依赖的package包/类
/**
 * Two objects that are equal are required to return the same hashCode. 
 */
public void testHashCode() {
    Comparable c1 = "C1";
    TextBlock tb1 = new TextBlock();
    tb1.addLine(new TextLine("Block 1"));
    tb1.addLine(new TextLine("Block 2"));
    TextBlockAnchor tba1 = TextBlockAnchor.CENTER;
    TextAnchor ta1 = TextAnchor.CENTER;
    
    CategoryTick t1 = new CategoryTick(c1, tb1, tba1, ta1, 1.0f);
    CategoryTick t2 = new CategoryTick(c1, tb1, tba1, ta1, 1.0f);
    assertTrue(t1.equals(t2));
    int h1 = t1.hashCode();
    int h2 = t2.hashCode();
    assertEquals(h1, h2);
}
 

import org.jfree.text.TextBlockAnchor; //导入依赖的package包/类
/**
 * Two objects that are equal are required to return the same hashCode. 
 */
public void testHashCode() {
    CategoryLabelPositions p1 = new CategoryLabelPositions(
        new CategoryLabelPosition(RA_TOP, TextBlockAnchor.CENTER), 
        new CategoryLabelPosition(RA_TOP, TextBlockAnchor.CENTER), 
        new CategoryLabelPosition(RA_TOP, TextBlockAnchor.CENTER), 
        new CategoryLabelPosition(RA_TOP, TextBlockAnchor.CENTER) 
    );
    CategoryLabelPositions p2 = new CategoryLabelPositions(
        new CategoryLabelPosition(RA_TOP, TextBlockAnchor.CENTER), 
        new CategoryLabelPosition(RA_TOP, TextBlockAnchor.CENTER), 
        new CategoryLabelPosition(RA_TOP, TextBlockAnchor.CENTER), 
        new CategoryLabelPosition(RA_TOP, TextBlockAnchor.CENTER) 
    );
    assertTrue(p1.equals(p2));
    int h1 = p1.hashCode();
    int h2 = p2.hashCode();
    assertEquals(h1, h2);
}
 

import org.jfree.text.TextBlockAnchor; //导入依赖的package包/类
/**
 * Draws a message to state that there is no data to plot.
 *
 * @param g2  the graphics device.
 * @param area  the area within which the plot should be drawn.
 */
protected void drawNoDataMessage(Graphics2D g2, Rectangle2D area) {
    Shape savedClip = g2.getClip();
    g2.clip(area);
    String message = this.noDataMessage;
    if (message != null) {
        g2.setFont(this.noDataMessageFont);
        g2.setPaint(this.noDataMessagePaint);
        TextBlock block = TextUtilities.createTextBlock(
                this.noDataMessage, this.noDataMessageFont, 
                this.noDataMessagePaint, 0.9f * (float) area.getWidth(), 
                new G2TextMeasurer(g2));
        block.draw(g2, (float) area.getCenterX(), (float) area.getCenterY(), 
                TextBlockAnchor.CENTER);
    }
    g2.setClip(savedClip);
}
 

import org.jfree.text.TextBlockAnchor; //导入依赖的package包/类
/**
 * Creates a new instance where the category labels angled upwards by the 
 * specified amount.
 * 
 * @param angle  the rotation angle (should be < Math.PI / 2.0).
 * 
 * @return A category label position specification.
 */
public static CategoryLabelPositions createUpRotationLabelPositions(
        double angle) {
    return new CategoryLabelPositions(
        new CategoryLabelPosition(
            RectangleAnchor.BOTTOM, TextBlockAnchor.BOTTOM_LEFT, 
            TextAnchor.BOTTOM_LEFT, -angle,
            CategoryLabelWidthType.RANGE, 0.50f
        ), // TOP
        new CategoryLabelPosition(
            RectangleAnchor.TOP, TextBlockAnchor.TOP_RIGHT, 
            TextAnchor.TOP_RIGHT, -angle,
            CategoryLabelWidthType.RANGE, 0.50f
        ), // BOTTOM
        new CategoryLabelPosition(
            RectangleAnchor.RIGHT, TextBlockAnchor.BOTTOM_RIGHT, 
            TextAnchor.BOTTOM_RIGHT, -angle,
            CategoryLabelWidthType.RANGE, 0.50f
        ), // LEFT
        new CategoryLabelPosition(
            RectangleAnchor.LEFT, TextBlockAnchor.TOP_LEFT, 
            TextAnchor.TOP_LEFT, -angle,
            CategoryLabelWidthType.RANGE, 0.50f
        ) // RIGHT
    );
}
 

import org.jfree.text.TextBlockAnchor; //导入依赖的package包/类
/**
 * Creates a new instance where the category labels angled downwards by the
 * specified amount.
 * 
 * @param angle  the rotation angle (should be < Math.PI / 2.0).
 * 
 * @return A category label position specification.
 */
public static CategoryLabelPositions createDownRotationLabelPositions(
        double angle) {
    return new CategoryLabelPositions(
        new CategoryLabelPosition(
            RectangleAnchor.BOTTOM, TextBlockAnchor.BOTTOM_RIGHT, 
            TextAnchor.BOTTOM_RIGHT, angle,
            CategoryLabelWidthType.RANGE, 0.50f
        ), // TOP
        new CategoryLabelPosition(
            RectangleAnchor.TOP, TextBlockAnchor.TOP_LEFT, 
            TextAnchor.TOP_LEFT, angle,
            CategoryLabelWidthType.RANGE, 0.50f
        ), // BOTTOM
        new CategoryLabelPosition(
            RectangleAnchor.RIGHT, TextBlockAnchor.TOP_RIGHT, 
            TextAnchor.TOP_RIGHT, angle,
            CategoryLabelWidthType.RANGE, 0.50f
        ), // LEFT
        new CategoryLabelPosition(
            RectangleAnchor.LEFT, TextBlockAnchor.BOTTOM_LEFT, 
            TextAnchor.BOTTOM_LEFT, angle,
            CategoryLabelWidthType.RANGE, 0.50f
        ) // RIGHT
    );
}
 

import org.jfree.text.TextBlockAnchor; //导入依赖的package包/类
/**
 * Two objects that are equal are required to return the same hashCode.
 */
@Test
public void testHashCode() {
    CategoryLabelPositions p1 = new CategoryLabelPositions(
            new CategoryLabelPosition(RA_TOP, TextBlockAnchor.CENTER),
            new CategoryLabelPosition(RA_TOP, TextBlockAnchor.CENTER),
            new CategoryLabelPosition(RA_TOP, TextBlockAnchor.CENTER),
            new CategoryLabelPosition(RA_TOP, TextBlockAnchor.CENTER));
    CategoryLabelPositions p2 = new CategoryLabelPositions(
            new CategoryLabelPosition(RA_TOP, TextBlockAnchor.CENTER),
            new CategoryLabelPosition(RA_TOP, TextBlockAnchor.CENTER),
            new CategoryLabelPosition(RA_TOP, TextBlockAnchor.CENTER),
            new CategoryLabelPosition(RA_TOP, TextBlockAnchor.CENTER));
    assertTrue(p1.equals(p2));
    int h1 = p1.hashCode();
    int h2 = p2.hashCode();
    assertEquals(h1, h2);
}
 

import org.jfree.text.TextBlockAnchor; //导入依赖的package包/类
/**
 * Two objects that are equal are required to return the same hashCode.
 */
@Test
public void testHashCode() {
    Comparable c1 = "C1";
    TextBlock tb1 = new TextBlock();
    tb1.addLine(new TextLine("Block 1"));
    tb1.addLine(new TextLine("Block 2"));
    TextBlockAnchor tba1 = TextBlockAnchor.CENTER;
    TextAnchor ta1 = TextAnchor.CENTER;

    CategoryTick t1 = new CategoryTick(c1, tb1, tba1, ta1, 1.0f);
    CategoryTick t2 = new CategoryTick(c1, tb1, tba1, ta1, 1.0f);
    assertTrue(t1.equals(t2));
    int h1 = t1.hashCode();
    int h2 = t2.hashCode();
    assertEquals(h1, h2);
}
 

import org.jfree.text.TextBlockAnchor; //导入依赖的package包/类
/**
 * Draws a message to state that there is no data to plot.
 *
 * @param g2  the graphics device.
 * @param area  the area within which the plot should be drawn.
 */
protected void drawNoDataMessage(Graphics2D g2, Rectangle2D area) {
    Shape savedClip = g2.getClip();
    g2.clip(area);
    String message = this.noDataMessage;
    if (message != null) {
        g2.setFont(this.noDataMessageFont);
        g2.setPaint(this.noDataMessagePaint);
        TextBlock block = TextUtilities.createTextBlock(
                this.noDataMessage, this.noDataMessageFont,
                this.noDataMessagePaint, 0.9f * (float) area.getWidth(),
                new G2TextMeasurer(g2));
        block.draw(g2, (float) area.getCenterX(),
                (float) area.getCenterY(), TextBlockAnchor.CENTER);
    }
    g2.setClip(savedClip);
}
 

import org.jfree.text.TextBlockAnchor; //导入依赖的package包/类
/**
 * Creates a new instance where the category labels angled upwards by the
 * specified amount.
 *
 * @param angle  the rotation angle (should be < Math.PI / 2.0).
 *
 * @return A category label position specification.
 */
public static CategoryLabelPositions createUpRotationLabelPositions(
        double angle) {
    return new CategoryLabelPositions(
        new CategoryLabelPosition(
            RectangleAnchor.BOTTOM, TextBlockAnchor.BOTTOM_LEFT,
            TextAnchor.BOTTOM_LEFT, -angle,
            CategoryLabelWidthType.RANGE, 0.50f), // TOP
        new CategoryLabelPosition(
            RectangleAnchor.TOP, TextBlockAnchor.TOP_RIGHT,
            TextAnchor.TOP_RIGHT, -angle,
            CategoryLabelWidthType.RANGE, 0.50f), // BOTTOM
        new CategoryLabelPosition(
            RectangleAnchor.RIGHT, TextBlockAnchor.BOTTOM_RIGHT,
            TextAnchor.BOTTOM_RIGHT, -angle,
            CategoryLabelWidthType.RANGE, 0.50f), // LEFT
        new CategoryLabelPosition(
            RectangleAnchor.LEFT, TextBlockAnchor.TOP_LEFT,
            TextAnchor.TOP_LEFT, -angle,
            CategoryLabelWidthType.RANGE, 0.50f) // RIGHT
    );
}
 

import org.jfree.text.TextBlockAnchor; //导入依赖的package包/类
/**
 * Creates a new instance where the category labels angled downwards by the
 * specified amount.
 *
 * @param angle  the rotation angle (should be < Math.PI / 2.0).
 *
 * @return A category label position specification.
 */
public static CategoryLabelPositions createDownRotationLabelPositions(
        double angle) {
    return new CategoryLabelPositions(
        new CategoryLabelPosition(
            RectangleAnchor.BOTTOM, TextBlockAnchor.BOTTOM_RIGHT,
            TextAnchor.BOTTOM_RIGHT, angle,
            CategoryLabelWidthType.RANGE, 0.50f), // TOP
        new CategoryLabelPosition(
            RectangleAnchor.TOP, TextBlockAnchor.TOP_LEFT,
            TextAnchor.TOP_LEFT, angle,
            CategoryLabelWidthType.RANGE, 0.50f), // BOTTOM
        new CategoryLabelPosition(
            RectangleAnchor.RIGHT, TextBlockAnchor.TOP_RIGHT,
            TextAnchor.TOP_RIGHT, angle,
            CategoryLabelWidthType.RANGE, 0.50f), // LEFT
        new CategoryLabelPosition(
            RectangleAnchor.LEFT, TextBlockAnchor.BOTTOM_LEFT,
            TextAnchor.BOTTOM_LEFT, angle,
            CategoryLabelWidthType.RANGE, 0.50f) // RIGHT
    );
}