/**
* Draws the text block, aligning it with the specified anchor point and rotating it about the
* specified rotation point.
*
* @param g2 the graphics device.
* @param anchorX the x-coordinate for the anchor point.
* @param anchorY the y-coordinate for the anchor point.
* @param anchor the point on the text block that is aligned to the anchor point.
* @param rotateX the x-coordinate for the rotation point.
* @param rotateY the x-coordinate for the rotation point.
* @param angle the rotation (in radians).
*/
public void draw(
final Graphics2D g2,
final float anchorX,
final float anchorY,
final TextBlockAnchor anchor,
final float rotateX,
final float rotateY,
final double angle) {
final Size2D d = calculateDimensions(g2);
final float[] offsets = calculateOffsets(anchor, d.getWidth(), d.getHeight());
final Iterator iterator = this.lines.iterator();
float yCursor = 0.0f;
while (iterator.hasNext()) {
TextLine line = (TextLine) iterator.next();
Size2D dimension = line.calculateDimensions(g2);
float lineOffset = 0.0f;
if (this.lineAlignment == HorizontalAlignment.CENTER) {
lineOffset = (float) (d.getWidth() - dimension.getWidth()) / 2.0f;
} else if (this.lineAlignment == HorizontalAlignment.RIGHT) {
lineOffset = (float) (d.getWidth() - dimension.getWidth());
}
line.draw(
g2,
anchorX + offsets[0] + lineOffset,
anchorY + offsets[1] + yCursor,
TextAnchor.TOP_LEFT,
rotateX,
rotateY,
angle);
yCursor = yCursor + (float) dimension.getHeight();
}
}
/**
* 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) {
RectangleConstraint cc = toContentConstraint(constraint);
LengthConstraintType w = cc.getWidthConstraintType();
LengthConstraintType h = cc.getHeightConstraintType();
Size2D contentSize = null;
if (w == LengthConstraintType.NONE) {
if (h == LengthConstraintType.NONE) {
contentSize = new Size2D(getWidth(), getHeight());
} 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) {
throw new RuntimeException("Not yet implemented.");
} 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) {
throw new RuntimeException("Not yet implemented.");
} 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()));
}
/**
* Returns the bounds of the text block.
*
* @param g2 the graphics device (<code>null</code> not permitted).
* @param anchorX the x-coordinate for the anchor point.
* @param anchorY the y-coordinate for the anchor point.
* @param anchor the text block anchor (<code>null</code> not permitted).
* @param rotateX the x-coordinate for the rotation point.
* @param rotateY the y-coordinate for the rotation point.
* @param angle the rotation angle.
* @return The bounds.
*/
public Shape calculateBounds(
final Graphics2D g2,
final float anchorX,
final float anchorY,
final TextBlockAnchor anchor,
final float rotateX,
final float rotateY,
final double angle) {
final Size2D d = calculateDimensions(g2);
final float[] offsets = calculateOffsets(anchor, d.getWidth(), d.getHeight());
final Rectangle2D bounds =
new Rectangle2D.Double(
anchorX + offsets[0], anchorY + offsets[1], d.getWidth(), d.getHeight());
final Shape rotatedBounds = ShapeUtilities.rotateShape(bounds, angle, rotateX, rotateY);
return rotatedBounds;
}
/**
* 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(Graphics2D g2, Range widthRange, Range heightRange) {
RectangleEdge position = getPosition();
if (position == RectangleEdge.TOP || position == RectangleEdge.BOTTOM) {
float maxWidth = (float) widthRange.getUpperBound();
g2.setFont(this.font);
this.content =
TextUtilities.createTextBlock(
this.text,
this.font,
this.paint,
maxWidth,
this.maximumLinesToDisplay,
new G2TextMeasurer(g2));
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(g2));
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 blocks in the container with a fixed with and a range constraint on the height.
*
* @param container the container.
* @param g2 the graphics device.
* @param constraint the constraint.
* @return The size following the arrangement.
*/
protected Size2D arrangeFR(
BlockContainer container, Graphics2D g2, RectangleConstraint constraint) {
Size2D s = arrangeFN(container, g2, constraint);
if (constraint.getHeightRange().contains(s.height)) {
return s;
} else {
RectangleConstraint c =
constraint.toFixedHeight(constraint.getHeightRange().constrain(s.getHeight()));
return arrangeFF(container, g2, c);
}
}
/**
* Returns the width and height of the text block.
*
* @param g2 the graphics device.
* @return The width and height.
*/
public Size2D calculateDimensions(final Graphics2D g2) {
double width = 0.0;
double height = 0.0;
final Iterator iterator = this.lines.iterator();
while (iterator.hasNext()) {
final TextLine line = (TextLine) iterator.next();
final Size2D dimension = line.calculateDimensions(g2);
width = Math.max(width, dimension.getWidth());
height = height + dimension.getHeight();
}
return new Size2D(width, height);
}
/**
* 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 contentSize = arrangeExtracted(constraint, g2);
return new Size2D(
calculateTotalWidth(contentSize.getWidth()), calculateTotalHeight(contentSize.getHeight()));
}