TextTitle.java :  » Chart » droidcharts » net » droidsolutions » droidcharts » core » title » Android Open Source

Android Open Source » Chart » droidcharts 
droidcharts » net » droidsolutions » droidcharts » core » title » TextTitle.java
/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2009, by Object Refinery Limited and Contributors.
 *
 * Project Info:  http://www.jfree.org/jfreechart/index.html
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
 * in the United States and other countries.]
 *
 * --------------
 * TextTitle.java
 * --------------
 * (C) Copyright 2000-2009, by David Berry and Contributors.
 *
 * Original Author:  David Berry;
 * Contributor(s):   David Gilbert (for Object Refinery Limited);
 *                   Nicolas Brodu;
 *                   Peter Kolb - patch 2603321;
 *
 * Changes (from 18-Sep-2001)
 * --------------------------
 * 18-Sep-2001 : Added standard header (DG);
 * 07-Nov-2001 : Separated the JCommon Class Library classes, JFreeChart now
 *               requires jcommon.jar (DG);
 * 09-Jan-2002 : Updated Javadoc comments (DG);
 * 07-Feb-2002 : Changed Insets --> Spacer in AbstractTitle.java (DG);
 * 06-Mar-2002 : Updated import statements (DG);
 * 25-Jun-2002 : Removed redundant imports (DG);
 * 18-Sep-2002 : Fixed errors reported by Checkstyle (DG);
 * 28-Oct-2002 : Small modifications while changing JFreeChart class (DG);
 * 13-Mar-2003 : Changed width used for relative spacing to fix bug 703050 (DG);
 * 26-Mar-2003 : Implemented Serializable (DG);
 * 15-Jul-2003 : Fixed null pointer exception (DG);
 * 11-Sep-2003 : Implemented Cloneable (NB)
 * 22-Sep-2003 : Added checks for null values and throw nullpointer
 *               exceptions (TM);
 *               Background paint was not serialized.
 * 07-Oct-2003 : Added fix for exception caused by empty string in title (DG);
 * 29-Oct-2003 : Added workaround for text alignment in PDF output (DG);
 * 03-Feb-2004 : Fixed bug in getPreferredWidth() method (DG);
 * 17-Feb-2004 : Added clone() method and fixed bug in equals() method (DG);
 * 01-Apr-2004 : Changed java.awt.geom.Dimension2D to org.jfree.ui.Size2D
 *               because of JDK bug 4976448 which persists on JDK 1.3.1.  Also
 *               fixed bug in getPreferredHeight() method (DG);
 * 29-Apr-2004 : Fixed bug in getPreferredWidth() method - see bug id
 *               944173 (DG);
 * 11-Jan-2005 : Removed deprecated code in preparation for the 1.0.0
 *               release (DG);
 * 08-Feb-2005 : Updated for changes in RectangleConstraint class (DG);
 * 11-Feb-2005 : Implemented PublicCloneable (DG);
 * 20-Apr-2005 : Added support for tooltips (DG);
 * 26-Apr-2005 : Removed LOGGER (DG);
 * 06-Jun-2005 : Modified equals() to handle GradientPaint (DG);
 * 06-Jul-2005 : Added flag to control whether or not the title expands to
 *               fit the available space (DG);
 * 07-Oct-2005 : Added textAlignment attribute (DG);
 * ------------- JFREECHART 1.0.x RELEASED ------------------------------------
 * 13-Dec-2005 : Fixed bug 1379331 - incorrect drawing with LEFT or RIGHT
 *               title placement (DG);
 * 19-Dec-2007 : Implemented some of the missing arrangement options (DG);
 * 28-Apr-2008 : Added option for maximum lines, and fixed minor bugs in
 *               equals() method (DG);
 * 19-Mar-2009 : Changed ChartEntity to TitleEntity - see patch 2603321 by
 *               Peter Kolb (DG);
 *
 */

package net.droidsolutions.droidcharts.core.title;

import java.io.Serializable;

import net.droidsolutions.droidcharts.awt.Font;
import net.droidsolutions.droidcharts.awt.Rectangle;
import net.droidsolutions.droidcharts.awt.Rectangle2D;
import net.droidsolutions.droidcharts.common.HorizontalAlignment;
import net.droidsolutions.droidcharts.common.RectangleEdge;
import net.droidsolutions.droidcharts.common.RectangleInsets;
import net.droidsolutions.droidcharts.common.Size2D;
import net.droidsolutions.droidcharts.common.VerticalAlignment;
import net.droidsolutions.droidcharts.core.block.BlockResult;
import net.droidsolutions.droidcharts.core.block.EntityBlockParams;
import net.droidsolutions.droidcharts.core.block.LengthConstraintType;
import net.droidsolutions.droidcharts.core.block.RectangleConstraint;
import net.droidsolutions.droidcharts.core.data.Range;
import net.droidsolutions.droidcharts.core.entity.ChartEntity;
import net.droidsolutions.droidcharts.core.entity.EntityCollection;
import net.droidsolutions.droidcharts.core.entity.StandardEntityCollection;
import net.droidsolutions.droidcharts.core.entity.TitleEntity;
import net.droidsolutions.droidcharts.core.event.TitleChangeEvent;
import net.droidsolutions.droidcharts.core.text.G2TextMeasurer;
import net.droidsolutions.droidcharts.core.text.TextBlock;
import net.droidsolutions.droidcharts.core.text.TextBlockAnchor;
import net.droidsolutions.droidcharts.core.text.TextUtilities;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Typeface;

/**
 * A chart title that displays a text string with automatic wrapping as
 * required.
 */
public class TextTitle extends Title implements Serializable, Cloneable {

  public static final Paint paintBlack = new Paint(Paint.ANTI_ALIAS_FLAG);
  static {
    paintBlack.setARGB(00, 0, 0, 0);
  }

  /** For serialization. */
  private static final long serialVersionUID = 8372008692127477443L;

  /** The default font. */
  public static final Font DEFAULT_FONT = new Font("SansSerif",
      Typeface.BOLD, 12);

  /** The default text color. */
  public static final Paint DEFAULT_TEXT_PAINT = paintBlack;

  /** The title text. */
  private String text;

  /** The font used to display the title. */
  private Font font;

  /** The text alignment. */
  private HorizontalAlignment textAlignment;

  /** The paint used to display the title text. */
  private transient Paint paint;

  /** The background paint. */
  private transient Paint backgroundPaint;

  /** The tool tip text (can be <code>null</code>). */
  private String toolTipText;

  /** The URL text (can be <code>null</code>). */
  private String urlText;

  /** The content. */
  private TextBlock content;

  /**
   * A flag that controls whether the title expands to fit the available
   * space..
   */
  private boolean expandToFitSpace = false;

  /**
   * The maximum number of lines to display.
   * 
   * @since 1.0.10
   */
  private int maximumLinesToDisplay = Integer.MAX_VALUE;

  /**
   * Creates a new title, using default attributes where necessary.
   */
  public TextTitle() {
    this("");
  }

  /**
   * Creates a new title, using default attributes where necessary.
   * 
   * @param text
   *            the title text (<code>null</code> not permitted).
   */
  public TextTitle(String text) {
    this(text, TextTitle.DEFAULT_FONT, TextTitle.DEFAULT_TEXT_PAINT,
        Title.DEFAULT_POSITION, Title.DEFAULT_HORIZONTAL_ALIGNMENT,
        Title.DEFAULT_VERTICAL_ALIGNMENT, Title.DEFAULT_PADDING);
  }

  /**
   * Creates a new title, using default attributes where necessary.
   * 
   * @param text
   *            the title text (<code>null</code> not permitted).
   * @param font
   *            the title font (<code>null</code> not permitted).
   */
  public TextTitle(String text, Font font) {
    this(text, font, TextTitle.DEFAULT_TEXT_PAINT, Title.DEFAULT_POSITION,
        Title.DEFAULT_HORIZONTAL_ALIGNMENT,
        Title.DEFAULT_VERTICAL_ALIGNMENT, Title.DEFAULT_PADDING);
  }

  /**
   * Creates a new title.
   * 
   * @param text
   *            the text for the title (<code>null</code> not permitted).
   * @param font
   *            the title font (<code>null</code> not permitted).
   * @param paint
   *            the title paint (<code>null</code> not permitted).
   * @param position
   *            the title position (<code>null</code> not permitted).
   * @param horizontalAlignment
   *            the horizontal alignment (<code>null</code> not permitted).
   * @param verticalAlignment
   *            the vertical alignment (<code>null</code> not permitted).
   * @param padding
   *            the space to leave around the outside of the title.
   */
  public TextTitle(String text, Font font, Paint paint,
      RectangleEdge position, HorizontalAlignment horizontalAlignment,
      VerticalAlignment verticalAlignment, RectangleInsets padding) {

    super(position, horizontalAlignment, verticalAlignment, padding);

    if (text == null) {
      throw new NullPointerException("Null 'text' argument.");
    }
    if (font == null) {
      throw new NullPointerException("Null 'font' argument.");
    }
    if (paint == null) {
      throw new NullPointerException("Null 'paint' argument.");
    }
    this.text = text;
    this.font = font;
    this.paint = paint;
    // the textAlignment and the horizontalAlignment are separate things,
    // but it makes sense for the default textAlignment to match the
    // title's horizontal alignment...
    this.textAlignment = horizontalAlignment;
    this.backgroundPaint = null;
    this.content = null;
    this.toolTipText = null;
    this.urlText = null;
    
    this.paint.setTypeface(this.font.getTypeFace());
    this.paint.setTextSize(this.font.getSize());

  }

  /**
   * Returns the title text.
   * 
   * @return The text (never <code>null</code>).
   * 
   * @see #setText(String)
   */
  public String getText() {
    return this.text;
  }

  /**
   * Sets the title to the specified text and sends a {@link TitleChangeEvent}
   * to all registered listeners.
   * 
   * @param text
   *            the text (<code>null</code> not permitted).
   */
  public void setText(String text) {
    if (text == null) {
      throw new IllegalArgumentException("Null 'text' argument.");
    }
    if (!this.text.equals(text)) {
      this.text = text;
    }
  }

  /**
   * Returns the text alignment. This controls how the text is aligned within
   * the title's bounds, whereas the title's horizontal alignment controls how
   * the title's bounding rectangle is aligned within the drawing space.
   * 
   * @return The text alignment.
   */
  public HorizontalAlignment getTextAlignment() {
    return this.textAlignment;
  }

  /**
   * Sets the text alignment and sends a {@link TitleChangeEvent} to all
   * registered listeners.
   * 
   * @param alignment
   *            the alignment (<code>null</code> not permitted).
   */
  public void setTextAlignment(HorizontalAlignment alignment) {
    if (alignment == null) {
      throw new IllegalArgumentException("Null 'alignment' argument.");
    }
    this.textAlignment = alignment;
  }

  /**
   * Returns the font used to display the title string.
   * 
   * @return The font (never <code>null</code>).
   * 
   * @see #setFont(Font)
   */
  public Font getFont() {
    return this.font;
  }

  /**
   * Sets the font used to display the title string. Registered listeners are
   * notified that the title has been modified.
   * 
   * @param font
   *            the new font (<code>null</code> not permitted).
   * 
   * @see #getFont()
   */
  public void setFont(Font font) {
    if (font == null) {
      throw new IllegalArgumentException("Null 'font' argument.");
    }
    if (!this.font.equals(font)) {
      this.font = font;
    }
  }

  /**
   * Returns the paint used to display the title string.
   * 
   * @return The paint (never <code>null</code>).
   * 
   * @see #setPaint(Paint)
   */
  public Paint getPaint() {
    return this.paint;
  }

  /**
   * Sets the paint used to display the title string. Registered listeners are
   * notified that the title has been modified.
   * 
   * @param paint
   *            the new paint (<code>null</code> not permitted).
   * 
   * @see #getPaint()
   */
  public void setPaint(Paint paint) {
    if (paint == null) {
      throw new IllegalArgumentException("Null 'paint' argument.");
    }
    if (!this.paint.equals(paint)) {
      this.paint = paint;
    }
  }

  /**
   * Returns the background paint.
   * 
   * @return The paint (possibly <code>null</code>).
   */
  public Paint getBackgroundPaint() {
    return this.backgroundPaint;
  }

  /**
   * Sets the background paint and sends a {@link TitleChangeEvent} to all
   * registered listeners. If you set this attribute to <code>null</code>, no
   * background is painted (which makes the title background transparent).
   * 
   * @param paint
   *            the background paint (<code>null</code> permitted).
   */
  public void setBackgroundPaint(Paint paint) {
    this.backgroundPaint = paint;
  }

  /**
   * Returns the tool tip text.
   * 
   * @return The tool tip text (possibly <code>null</code>).
   */
  public String getToolTipText() {
    return this.toolTipText;
  }

  /**
   * Sets the tool tip text to the specified text and sends a
   * {@link TitleChangeEvent} to all registered listeners.
   * 
   * @param text
   *            the text (<code>null</code> permitted).
   */
  public void setToolTipText(String text) {
    this.toolTipText = text;
  }

  /**
   * Returns the URL text.
   * 
   * @return The URL text (possibly <code>null</code>).
   */
  public String getURLText() {
    return this.urlText;
  }

  /**
   * Sets the URL text to the specified text and sends a
   * {@link TitleChangeEvent} to all registered listeners.
   * 
   * @param text
   *            the text (<code>null</code> permitted).
   */
  public void setURLText(String text) {
    this.urlText = text;
  }

  /**
   * Returns the flag that controls whether or not the title expands to fit
   * the available space.
   * 
   * @return The flag.
   */
  public boolean getExpandToFitSpace() {
    return this.expandToFitSpace;
  }

  /**
   * Sets the flag that controls whether the title expands to fit the
   * available space, and sends a {@link TitleChangeEvent} to all registered
   * listeners.
   * 
   * @param expand
   *            the flag.
   */
  public void setExpandToFitSpace(boolean expand) {
    this.expandToFitSpace = expand;
  }

  /**
   * Returns the maximum number of lines to display.
   * 
   * @return The maximum.
   * 
   * @since 1.0.10
   * 
   * @see #setMaximumLinesToDisplay(int)
   */
  public int getMaximumLinesToDisplay() {
    return this.maximumLinesToDisplay;
  }

  /**
   * Sets the maximum number of lines to display and sends a
   * {@link TitleChangeEvent} to all registered listeners.
   * 
   * @param max
   *            the maximum.
   * 
   * @since 1.0.10.
   * 
   * @see #getMaximumLinesToDisplay()
   */
  public void setMaximumLinesToDisplay(int max) {
    this.maximumLinesToDisplay = max;
  }

  /**
   * 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(Canvas g2, RectangleConstraint constraint) {
    RectangleConstraint cc = toContentConstraint(constraint);
    LengthConstraintType w = cc.getWidthConstraintType();
    LengthConstraintType h = cc.getHeightConstraintType();
    Size2D contentSize = null;
    if (w == LengthConstraintType.NONE) {
      if (h == LengthConstraintType.NONE) {
        contentSize = arrangeNN(g2);
      } else if (h == LengthConstraintType.RANGE) {
        throw new RuntimeException("Not yet implemented.");
      } else if (h == LengthConstraintType.FIXED) {
        throw new RuntimeException("Not yet implemented.");
      }
    } else if (w == LengthConstraintType.RANGE) {
      if (h == LengthConstraintType.NONE) {
        contentSize = arrangeRN(g2, cc.getWidthRange());
      } else if (h == LengthConstraintType.RANGE) {
        contentSize = arrangeRR(g2, cc.getWidthRange(), cc
            .getHeightRange());
      } else if (h == LengthConstraintType.FIXED) {
        throw new RuntimeException("Not yet implemented.");
      }
    } else if (w == LengthConstraintType.FIXED) {
      if (h == LengthConstraintType.NONE) {
        contentSize = arrangeFN(g2, cc.getWidth());
      } else if (h == LengthConstraintType.RANGE) {
        throw new RuntimeException("Not yet implemented.");
      } else if (h == LengthConstraintType.FIXED) {
        throw new RuntimeException("Not yet implemented.");
      }
    }
    return new Size2D(calculateTotalWidth(contentSize.getWidth()),
        calculateTotalHeight(contentSize.getHeight()));
  }

  /**
   * Arranges the content for this title assuming no bounds on the width or
   * the height, and returns the required size. This will reflect the fact
   * that a text title positioned on the left or right of a chart will be
   * rotated by 90 degrees.
   * 
   * @param g2
   *            the graphics target.
   * 
   * @return The content size.
   * 
   * @since 1.0.9
   */
  protected Size2D arrangeNN(Canvas g2) {
    Range max = new Range(0.0, Float.MAX_VALUE);
    return arrangeRR(g2, max, max);
  }

  /**
   * Arranges the content for this title assuming a fixed width and no bounds
   * on the height, and returns the required size. This will reflect the fact
   * that a text title positioned on the left or right of a chart will be
   * rotated by 90 degrees.
   * 
   * @param g2
   *            the graphics target.
   * @param w
   *            the width.
   * 
   * @return The content size.
   * 
   * @since 1.0.9
   */
  protected Size2D arrangeFN(Canvas g2, double w) {
    RectangleEdge position = getPosition();
    if (position == RectangleEdge.TOP || position == RectangleEdge.BOTTOM) {
      float maxWidth = (float) w;
      
       paint.setTypeface(font.getTypeFace());
       paint.setTextSize(font.getSize());
      this.content = TextUtilities.createTextBlock(this.text, this.font,
          this.paint, maxWidth, this.maximumLinesToDisplay,
          new G2TextMeasurer(paint));
      this.content.setLineAlignment(this.textAlignment);
      Size2D contentSize = this.content.calculateDimensions(g2);
      if (this.expandToFitSpace) {
        return new Size2D(maxWidth, contentSize.getHeight());
      } else {
        return contentSize;
      }
    } else if (position == RectangleEdge.LEFT
        || position == RectangleEdge.RIGHT) {
      float maxWidth = Float.MAX_VALUE;

      this.content = TextUtilities.createTextBlock(this.text, this.font,
          this.paint, maxWidth, this.maximumLinesToDisplay,
          new G2TextMeasurer(paint));
      this.content.setLineAlignment(this.textAlignment);
      Size2D contentSize = this.content.calculateDimensions(g2);

      // transpose the dimensions, because the title is rotated
      if (this.expandToFitSpace) {
        return new Size2D(contentSize.getHeight(), maxWidth);
      } else {
        return new Size2D(contentSize.height, contentSize.width);
      }
    } else {
      throw new RuntimeException("Unrecognised exception.");
    }
  }

  /**
   * Arranges the content for this title assuming a range constraint for the
   * width and no bounds on the height, and returns the required size. This
   * will reflect the fact that a text title positioned on the left or right
   * of a chart will be rotated by 90 degrees.
   * 
   * @param g2
   *            the graphics target.
   * @param widthRange
   *            the range for the width.
   * 
   * @return The content size.
   * 
   * @since 1.0.9
   */
  protected Size2D arrangeRN(Canvas g2, Range widthRange) {
    Size2D s = arrangeNN(g2);
    if (widthRange.contains(s.getWidth())) {
      return s;
    }
    double ww = widthRange.constrain(s.getWidth());
    return arrangeFN(g2, ww);
  }

  /**
   * Returns the content size for the title. This will reflect the fact that a
   * text title positioned on the left or right of a chart will be rotated 90
   * degrees.
   * 
   * @param g2
   *            the graphics device.
   * @param widthRange
   *            the width range.
   * @param heightRange
   *            the height range.
   * 
   * @return The content size.
   */
  protected Size2D arrangeRR(Canvas g2, Range widthRange, Range heightRange) {
    RectangleEdge position = getPosition();
    if (position == RectangleEdge.TOP || position == RectangleEdge.BOTTOM) {
      float maxWidth = (float) widthRange.getUpperBound();
      // g2.setFont(this.font);

       paint.setTypeface(font.getTypeFace());
       paint.setTextSize(font.getSize());
      this.content = TextUtilities.createTextBlock(this.text, this.font,
          this.paint, maxWidth, this.maximumLinesToDisplay,
          new G2TextMeasurer(paint));
      this.content.setLineAlignment(this.textAlignment);
      Size2D contentSize = this.content.calculateDimensions(g2);
      if (this.expandToFitSpace) {
        return new Size2D(maxWidth, contentSize.getHeight());
      } else {
        return contentSize;
      }
    } else if (position == RectangleEdge.LEFT
        || position == RectangleEdge.RIGHT) {
      float maxWidth = (float) heightRange.getUpperBound();
      // g2.setFont(this.font);
      this.content = TextUtilities.createTextBlock(this.text, this.font,
          this.paint, maxWidth, this.maximumLinesToDisplay,
          new G2TextMeasurer(paint));
      this.content.setLineAlignment(this.textAlignment);
      Size2D contentSize = this.content.calculateDimensions(g2);

      // transpose the dimensions, because the title is rotated
      if (this.expandToFitSpace) {
        return new Size2D(contentSize.getHeight(), maxWidth);
      } else {
        return new Size2D(contentSize.height, contentSize.width);
      }
    } else {
      throw new RuntimeException("Unrecognised exception.");
    }
  }

  /**
   * Draws the title on a Java 2D graphics device (such as the screen or a
   * printer).
   * 
   * @param g2
   *            the graphics device.
   * @param area
   *            the area allocated for the title.
   */
  public void draw(Canvas g2, Rectangle2D area) {
    draw(g2, area, null);
  }

  /**
   * Draws the block within the specified area.
   * 
   * @param g2
   *            the graphics device.
   * @param area
   *            the area.
   * @param params
   *            if this is an instance of {@link EntityBlockParams} it is used
   *            to determine whether or not an {@link EntityCollection} is
   *            returned by this method.
   * 
   * @return An {@link EntityCollection} containing a chart entity for the
   *         title, or <code>null</code>.
   */
  public Object draw(Canvas g2, Rectangle2D area, Object params) {
    if (this.content == null) {
      return null;
    }
    area = trimMargin(area);
    drawBorder(g2, area);
    if (this.text.equals("")) {
      return null;
    }
    ChartEntity entity = null;
    if (params instanceof EntityBlockParams) {
      EntityBlockParams p = (EntityBlockParams) params;
      if (p.getGenerateEntities()) {
        entity = new TitleEntity(area, this, this.toolTipText,
            this.urlText);
      }
    }
    area = trimBorder(area);
    if (this.backgroundPaint != null) {
      
      // g2.setPaint(this.backgroundPaint);
      // g2.fill(area);
    }
    area = trimPadding(area);
    RectangleEdge position = getPosition();
    if (position == RectangleEdge.TOP || position == RectangleEdge.BOTTOM) {
      drawHorizontal(g2, area);
    } else if (position == RectangleEdge.LEFT
        || position == RectangleEdge.RIGHT) {
      drawVertical(g2, area);
    }
    BlockResult result = new BlockResult();
    if (entity != null) {
      StandardEntityCollection sec = new StandardEntityCollection();
      sec.add(entity);
      result.setEntityCollection(sec);
    }
    return result;
  }

  /**
   * Draws a the title horizontally within the specified area. This method
   * will be called from the {@link #draw(Graphics2D, Rectangle2D) draw}
   * method.
   * 
   * @param g2
   *            the graphics device.
   * @param area
   *            the area for the title.
   */
  protected void drawHorizontal(Canvas g2, Rectangle2D area) {
    Rectangle2D titleArea = (Rectangle2D) area.clone();
    // g2.setFont(this.font);
    TextBlockAnchor anchor = null;
    float x = 0.0f;
    HorizontalAlignment horizontalAlignment = getHorizontalAlignment();
    if (horizontalAlignment == HorizontalAlignment.LEFT) {
      x = (float) titleArea.getX();
      anchor = TextBlockAnchor.TOP_LEFT;
    } else if (horizontalAlignment == HorizontalAlignment.RIGHT) {
      x = (float) titleArea.getMaxX();
      anchor = TextBlockAnchor.TOP_RIGHT;
    } else if (horizontalAlignment == HorizontalAlignment.CENTER) {
      x = (float) titleArea.getCenterX();
      anchor = TextBlockAnchor.TOP_CENTER;
    }
    float y = 0.0f;
    RectangleEdge position = getPosition();
    if (position == RectangleEdge.TOP) {
      y = (float) titleArea.getY();
    } else if (position == RectangleEdge.BOTTOM) {
      y = (float) titleArea.getMaxY();
      if (horizontalAlignment == HorizontalAlignment.LEFT) {
        anchor = TextBlockAnchor.BOTTOM_LEFT;
      } else if (horizontalAlignment == HorizontalAlignment.CENTER) {
        anchor = TextBlockAnchor.BOTTOM_CENTER;
      } else if (horizontalAlignment == HorizontalAlignment.RIGHT) {
        anchor = TextBlockAnchor.BOTTOM_RIGHT;
      }
    }
    this.content.draw(g2, x, y, anchor, paint);
  }

  /**
   * Draws a the title vertically within the specified area. This method will
   * be called from the {@link #draw(Graphics2D, Rectangle2D) draw} method.
   * 
   * @param g2
   *            the graphics device.
   * @param area
   *            the area for the title.
   */
  protected void drawVertical(Canvas g2, Rectangle2D area) {
    Rectangle2D titleArea = (Rectangle2D) area.clone();
    // g2.setFont(this.font);
    // g2.setPaint(this.paint);
    TextBlockAnchor anchor = null;
    float y = 0.0f;
    VerticalAlignment verticalAlignment = getVerticalAlignment();
    if (verticalAlignment == VerticalAlignment.TOP) {
      y = (float) titleArea.getY();
      anchor = TextBlockAnchor.TOP_RIGHT;
    } else if (verticalAlignment == VerticalAlignment.BOTTOM) {
      y = (float) titleArea.getMaxY();
      anchor = TextBlockAnchor.TOP_LEFT;
    } else if (verticalAlignment == VerticalAlignment.CENTER) {
      y = (float) titleArea.getCenterY();
      anchor = TextBlockAnchor.TOP_CENTER;
    }
    float x = 0.0f;
    RectangleEdge position = getPosition();
    if (position == RectangleEdge.LEFT) {
      x = (float) titleArea.getX();
    } else if (position == RectangleEdge.RIGHT) {
      x = (float) titleArea.getMaxX();
      if (verticalAlignment == VerticalAlignment.TOP) {
        anchor = TextBlockAnchor.BOTTOM_RIGHT;
      } else if (verticalAlignment == VerticalAlignment.CENTER) {
        anchor = TextBlockAnchor.BOTTOM_CENTER;
      } else if (verticalAlignment == VerticalAlignment.BOTTOM) {
        anchor = TextBlockAnchor.BOTTOM_LEFT;
      }
    }
    this.content.draw(g2, x, y, anchor, x, y, -Math.PI / 2.0, paint);
  }

  public void draw(Canvas g2, Rectangle area) {
    draw(g2, area, null);

  }

}
java2s.com  | Contact Us | Privacy Policy
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.