Java BlockContainer类代码示例

import org.jfree.chart.block.BlockContainer; //导入依赖的package包/类
/**
 * Creates a new legend title with the specified arrangement.
 * 
 * @param source  the source.
 * @param hLayout  the horizontal item arrangement (<code>null</code> not
 *                 permitted).
 * @param vLayout  the vertical item arrangement (<code>null</code> not
 *                 permitted).
 */
public LegendTitle(LegendItemSource source, 
                   Arrangement hLayout, Arrangement vLayout) {
    this.sources = new LegendItemSource[] {source};
    this.items = new BlockContainer(hLayout);
    this.hLayout = hLayout;
    this.vLayout = vLayout;
    this.backgroundPaint = null;  
    this.legendItemGraphicEdge = RectangleEdge.LEFT;
    this.legendItemGraphicAnchor = RectangleAnchor.CENTER;
    this.legendItemGraphicLocation = RectangleAnchor.CENTER;
    this.legendItemGraphicPadding = new RectangleInsets(2.0, 2.0, 2.0, 2.0);
    this.itemFont = DEFAULT_ITEM_FONT;
    this.itemPaint = DEFAULT_ITEM_PAINT;
    this.itemLabelPadding = new RectangleInsets(2.0, 2.0, 2.0, 2.0);
}
 

import org.jfree.chart.block.BlockContainer; //导入依赖的package包/类
/**
 * Confirm that the equals() method can distinguish all the required fields.
 */
public void testEquals() {
    BlockContainer c1 = new BlockContainer(new FlowArrangement());
    BlockContainer c2 = new BlockContainer(new FlowArrangement());
    assertTrue(c1.equals(c2));
    assertTrue(c2.equals(c2));
    
    c1.setArrangement(new ColumnArrangement());
    assertFalse(c1.equals(c2));
    c2.setArrangement(new ColumnArrangement());
    assertTrue(c1.equals(c2));
    
    c1.add(new EmptyBlock(1.2, 3.4));
    assertFalse(c1.equals(c2));
    c2.add(new EmptyBlock(1.2, 3.4));
    assertTrue(c1.equals(c2));
}
 

import org.jfree.chart.block.BlockContainer; //导入依赖的package包/类
/**
 * Arranges the contents of the block, within the given constraints, and 
 * returns the block size.
 * 
 * @param g2  the graphics device.
 * @param constraint  the constraint (<code>null</code> not permitted).
 * 
 * @return The block size (in Java2D units, never <code>null</code>).
 */
public Size2D arrange(Graphics2D g2, RectangleConstraint constraint) {
    Size2D result = new Size2D();
    fetchLegendItems();
    if (this.items.isEmpty()) {
        return result;   
    }
    BlockContainer container = this.wrapper;
    if (container == null) {
        container = this.items;
    }
    RectangleConstraint c = toContentConstraint(constraint);
    Size2D size = container.arrange(g2, c);
    result.height = calculateTotalHeight(size.height);
    result.width = calculateTotalWidth(size.width);
    return result;
}
 

import org.jfree.chart.block.BlockContainer; //导入依赖的package包/类
/**
 * Draws the block within the specified area.
 * 
 * @param g2  the graphics device.
 * @param area  the area.
 * @param params  ignored (<code>null</code> permitted).
 * 
 * @return An {@link org.jfree.chart.block.EntityBlockResult} or 
 *         <code>null</code>.
 */
public Object draw(Graphics2D g2, Rectangle2D area, Object params) {
    Rectangle2D target = (Rectangle2D) area.clone();
    target = trimMargin(target);
    if (this.backgroundPaint != null) {
        g2.setPaint(this.backgroundPaint);
        g2.fill(target);
    }
    BlockFrame border = getFrame();
    border.draw(g2, target);
    border.getInsets().trim(target);
    BlockContainer container = this.wrapper;
    if (container == null) {
        container = this.items; 
    }
    target = trimPadding(target);
    return container.draw(g2, target, params);   
}
 

import org.jfree.chart.block.BlockContainer; //导入依赖的package包/类
/**
 * Confirm that cloning works.
 */
@Test
public void testCloning() {
    CompositeTitle t1 = new CompositeTitle(new BlockContainer());
    t1.getContainer().add(new TextTitle("T1"));
    t1.setBackgroundPaint(new GradientPaint(1.0f, 2.0f, Color.red,
            3.0f, 4.0f, Color.yellow));
    CompositeTitle t2 = null;
    try {
        t2 = (CompositeTitle) t1.clone();
    }
    catch (CloneNotSupportedException e) {
        fail(e.toString());
    }
    assertTrue(t1 != t2);
    assertTrue(t1.getClass() == t2.getClass());
    assertTrue(t1.equals(t2));
}
 

import org.jfree.chart.block.BlockContainer; //导入依赖的package包/类
/**
 * Creates a new legend title with the specified arrangement.
 *
 * @param source  the source.
 * @param hLayout  the horizontal item arrangement (<code>null</code> not
 *                 permitted).
 * @param vLayout  the vertical item arrangement (<code>null</code> not
 *                 permitted).
 */
public LegendTitle(LegendItemSource source,
                   Arrangement hLayout, Arrangement vLayout) {
    this.sources = new LegendItemSource[] {source};
    this.items = new BlockContainer(hLayout);
    this.hLayout = hLayout;
    this.vLayout = vLayout;
    this.backgroundPaint = null;
    this.legendItemGraphicEdge = RectangleEdge.LEFT;
    this.legendItemGraphicAnchor = RectangleAnchor.CENTER;
    this.legendItemGraphicLocation = RectangleAnchor.CENTER;
    this.legendItemGraphicPadding = new RectangleInsets(2.0, 2.0, 2.0, 2.0);
    this.itemFont = DEFAULT_ITEM_FONT;
    this.itemPaint = DEFAULT_ITEM_PAINT;
    this.itemLabelPadding = new RectangleInsets(2.0, 2.0, 2.0, 2.0);
    this.sortOrder = SortOrder.ASCENDING;
}
 

import org.jfree.chart.block.BlockContainer; //导入依赖的package包/类
/**
 * Arranges the contents of the block, within the given constraints, and
 * returns the block size.
 *
 * @param g2  the graphics device.
 * @param constraint  the constraint (<code>null</code> not permitted).
 *
 * @return The block size (in Java2D units, never <code>null</code>).
 */
@Override
public Size2D arrange(Graphics2D g2, RectangleConstraint constraint) {
    Size2D result = new Size2D();
    fetchLegendItems();
    if (this.items.isEmpty()) {
        return result;
    }
    BlockContainer container = this.wrapper;
    if (container == null) {
        container = this.items;
    }
    RectangleConstraint c = toContentConstraint(constraint);
    Size2D size = container.arrange(g2, c);
    result.height = calculateTotalHeight(size.height);
    result.width = calculateTotalWidth(size.width);
    return result;
}
 

import org.jfree.chart.block.BlockContainer; //导入依赖的package包/类
/**
 * Creates a new legend title with the specified arrangement.
 *
 * @param source  the source.
 * @param hLayout  the horizontal item arrangement ({@code null} not
 *                 permitted).
 * @param vLayout  the vertical item arrangement ({@code null} not
 *                 permitted).
 */
public LegendTitle(LegendItemSource source,
                   Arrangement hLayout, Arrangement vLayout) {
    this.sources = new LegendItemSource[] {source};
    this.items = new BlockContainer(hLayout);
    this.hLayout = hLayout;
    this.vLayout = vLayout;
    this.backgroundPaint = null;
    this.legendItemGraphicEdge = RectangleEdge.LEFT;
    this.legendItemGraphicAnchor = RectangleAnchor.CENTER;
    this.legendItemGraphicLocation = RectangleAnchor.CENTER;
    this.legendItemGraphicPadding = new RectangleInsets(2.0, 2.0, 2.0, 2.0);
    this.itemFont = DEFAULT_ITEM_FONT;
    this.itemPaint = DEFAULT_ITEM_PAINT;
    this.itemLabelPadding = new RectangleInsets(2.0, 2.0, 2.0, 2.0);
    this.sortOrder = SortOrder.ASCENDING;
}
 

import org.jfree.chart.block.BlockContainer; //导入依赖的package包/类
/**
 * Arranges the contents of the block, within the given constraints, and
 * returns the block size.
 *
 * @param g2  the graphics device.
 * @param constraint  the constraint ({@code null} not permitted).
 *
 * @return The block size (in Java2D units, never {@code null}).
 */
@Override
public Size2D arrange(Graphics2D g2, RectangleConstraint constraint) {
    Size2D result = new Size2D();
    fetchLegendItems();
    if (this.items.isEmpty()) {
        return result;
    }
    BlockContainer container = this.wrapper;
    if (container == null) {
        container = this.items;
    }
    RectangleConstraint c = toContentConstraint(constraint);
    Size2D size = container.arrange(g2, c);
    result.height = calculateTotalHeight(size.height);
    result.width = calculateTotalWidth(size.width);
    return result;
}
 

import org.jfree.chart.block.BlockContainer; //导入依赖的package包/类
/**
 * Confirm that cloning works.
 */
@Test
public void testCloning() {
    CompositeTitle t1 = new CompositeTitle(new BlockContainer());
    t1.getContainer().add(new TextTitle("T1"));
    t1.setBackgroundPaint(new GradientPaint(1.0f, 2.0f, Color.RED,
            3.0f, 4.0f, Color.YELLOW));
    CompositeTitle t2 = null;
    try {
        t2 = (CompositeTitle) t1.clone();
    }
    catch (CloneNotSupportedException e) {
        fail(e.toString());
    }
    assertTrue(t1 != t2);
    assertTrue(t1.getClass() == t2.getClass());
    assertTrue(t1.equals(t2));
}
 

import org.jfree.chart.block.BlockContainer; //导入依赖的package包/类
/**
 * Creates a new legend title with the specified arrangement.
 *
 * @param source  the source.
 * @param hLayout  the horizontal item arrangement (<code>null</code> not
 *                 permitted).
 * @param vLayout  the vertical item arrangement (<code>null</code> not
 *                 permitted).
 */
public LegendTitle(LegendItemSource source,
                   Arrangement hLayout, Arrangement vLayout) {
    this.sources = new LegendItemSource[] {source};
    this.items = new BlockContainer(hLayout);
    this.hLayout = hLayout;
    this.vLayout = vLayout;
    this.backgroundPaint = null;
    this.legendItemGraphicEdge = RectangleEdge.LEFT;
    this.legendItemGraphicAnchor = RectangleAnchor.CENTER;
    this.legendItemGraphicLocation = RectangleAnchor.CENTER;
    this.legendItemGraphicPadding = new RectangleInsets(2.0, 2.0, 2.0, 2.0);
    this.itemFont = DEFAULT_ITEM_FONT;
    this.itemPaint = DEFAULT_ITEM_PAINT;
    this.itemLabelPadding = new RectangleInsets(2.0, 2.0, 2.0, 2.0);
}
 

import org.jfree.chart.block.BlockContainer; //导入依赖的package包/类
/**
 * Arranges the contents of the block, within the given constraints, and
 * returns the block size.
 *
 * @param g2  the graphics device.
 * @param constraint  the constraint (<code>null</code> not permitted).
 *
 * @return The block size (in Java2D units, never <code>null</code>).
 */
public Size2D arrange(Graphics2D g2, RectangleConstraint constraint) {
    Size2D result = new Size2D();
    fetchLegendItems();
    if (this.items.isEmpty()) {
        return result;
    }
    BlockContainer container = this.wrapper;
    if (container == null) {
        container = this.items;
    }
    RectangleConstraint c = toContentConstraint(constraint);
    Size2D size = container.arrange(g2, c);
    result.height = calculateTotalHeight(size.height);
    result.width = calculateTotalWidth(size.width);
    return result;
}
 

import org.jfree.chart.block.BlockContainer; //导入依赖的package包/类
/**
 * Draws the block within the specified area.
 *
 * @param g2  the graphics device.
 * @param area  the area.
 * @param params  ignored (<code>null</code> permitted).
 *
 * @return An {@link org.jfree.chart.block.EntityBlockResult} or
 *         <code>null</code>.
 */
public Object draw(Graphics2D g2, Rectangle2D area, Object params) {
    Rectangle2D target = (Rectangle2D) area.clone();
    target = trimMargin(target);
    if (this.backgroundPaint != null) {
        g2.setPaint(this.backgroundPaint);
        g2.fill(target);
    }
    BlockFrame border = getFrame();
    border.draw(g2, target);
    border.getInsets().trim(target);
    BlockContainer container = this.wrapper;
    if (container == null) {
        container = this.items;
    }
    target = trimPadding(target);
    return container.draw(g2, target, params);
}
 

import org.jfree.chart.block.BlockContainer; //导入依赖的package包/类
/**
 * This test is for a particular bug that arose just prior to the release
 * of JFreeChart 1.0.10.  A BorderArrangement with LEFT, CENTRE and RIGHT
 * blocks that is too wide, by default, for the available space, wasn't
 * shrinking the centre block as expected.
 */
public void testBugX() {
    RectangleConstraint constraint = new RectangleConstraint(
            new Range(0.0, 200.0), new Range(0.0, 100.0));
    BlockContainer container = new BlockContainer(new BorderArrangement());
    BufferedImage image = new BufferedImage(200, 100,
            BufferedImage.TYPE_INT_RGB);
    Graphics2D g2 = image.createGraphics();

    container.add(new EmptyBlock(10.0, 6.0), RectangleEdge.LEFT);
    container.add(new EmptyBlock(20.0, 6.0), RectangleEdge.RIGHT);
    container.add(new EmptyBlock(30.0, 6.0));
    Size2D size = container.arrange(g2, constraint);
    assertEquals(60.0, size.width, EPSILON);
    assertEquals(6.0, size.height, EPSILON);

    container.clear();
    container.add(new EmptyBlock(10.0, 6.0), RectangleEdge.LEFT);
    container.add(new EmptyBlock(20.0, 6.0), RectangleEdge.RIGHT);
    container.add(new EmptyBlock(300.0, 6.0));
    size = container.arrange(g2, constraint);
    assertEquals(200.0, size.width, EPSILON);
    assertEquals(6.0, size.height, EPSILON);


}
 

import org.jfree.chart.block.BlockContainer; //导入依赖的package包/类
/**
 * Confirm that the equals() method can distinguish all the required fields.
 */
public void testEquals() {
    BlockContainer c1 = new BlockContainer(new FlowArrangement());
    BlockContainer c2 = new BlockContainer(new FlowArrangement());
    assertTrue(c1.equals(c2));
    assertTrue(c2.equals(c2));

    c1.setArrangement(new ColumnArrangement());
    assertFalse(c1.equals(c2));
    c2.setArrangement(new ColumnArrangement());
    assertTrue(c1.equals(c2));

    c1.add(new EmptyBlock(1.2, 3.4));
    assertFalse(c1.equals(c2));
    c2.add(new EmptyBlock(1.2, 3.4));
    assertTrue(c1.equals(c2));
}