/**
* Writes the <code>shape</code>, <code>coords</code>, <code>href</code>,
* <code>nohref</code> Attribute for the specified figure and shape.
*
* @return Returns true, if the polygon is inside of the image bounds.
*/
private boolean writePolyAttributes(IXMLElement elem, SVGFigure f, Shape shape) {
AffineTransform t = TRANSFORM.getClone(f);
if (t == null) {
t = drawingTransform;
} else {
t.preConcatenate(drawingTransform);
}
StringBuilder buf = new StringBuilder();
float[] coords = new float[6];
GeneralPath path = new GeneralPath();
for (PathIterator i = shape.getPathIterator(t, 1.5f);
! i.isDone(); i.next()) {
switch (i.currentSegment(coords)) {
case PathIterator.SEG_MOVETO :
if (buf.length() != 0) {
throw new IllegalArgumentException("Illegal shape "+shape);
}
if (buf.length() != 0) {
buf.append(',');
}
buf.append((int) coords[0]);
buf.append(',');
buf.append((int) coords[1]);
path.moveTo(coords[0], coords[1]);
break;
case PathIterator.SEG_LINETO :
if (buf.length() != 0) {
buf.append(',');
}
buf.append((int) coords[0]);
buf.append(',');
buf.append((int) coords[1]);
path.lineTo(coords[0], coords[1]);
break;
case PathIterator.SEG_CLOSE :
path.closePath();
break;
default :
throw new InternalError("Illegal segment type "+i.currentSegment(coords));
}
}
elem.setAttribute("shape", "poly");
elem.setAttribute("coords", buf.toString());
writeHrefAttribute(elem, f);
return path.intersects(new Rectangle2D.Float(bounds.x, bounds.y, bounds.width, bounds.height));
}
/**
* Build a shape for the entire subtree by joining together the shapes for each of its edges.
* Vertices included since needed for FullTextPanel.
*/
public Shape constructInternalShape(DiagramBase diagram, boolean includeVertices) {
GeneralPath shape = new GeneralPath();
Enumeration edges = m_edgeList.elements();
while (edges.hasMoreElements()) {
TreeEdge edge = (TreeEdge) edges.nextElement();
Shape edgeShape = edge.getSchemeShape(diagram);
PathIterator path = edgeShape.getPathIterator(null);
shape.append(path, false);
if (includeVertices) {
Shape vertexShape;
if (!edge.getSourceVertex().isVirtual()) {
vertexShape = edge.getSourceVertex().getShape(diagram);
path = vertexShape.getPathIterator(null);
shape.append(path, false);
}
if (!edge.getDestVertex().isVirtual()) {
vertexShape = edge.getDestVertex().getShape(diagram);
path = vertexShape.getPathIterator(null);
shape.append(path, false);
}
}
}
BasicStroke stroke =
new BasicStroke(
diagram.getSubtreeLineWidth() - DiagramBase.EDGE_OUTLINE_WIDTH + 1,
BasicStroke.CAP_ROUND,
BasicStroke.JOIN_MITER);
internalShapeTable.put(diagram, stroke.createStrokedShape(shape));
return (Shape) internalShapeTable.get(diagram);
}
public Shape getShape() {
GeneralPath gp = new GeneralPath();
gp.moveTo((float) d.getPosition().getX(), (float) d.getPosition().getY());
for (Node n : Arrays.asList(dt, tv, v)) {
gp.lineTo((float) n.getPosition().getX(), (float) n.getPosition().getY());
}
gp.closePath();
return gp;
}
void draw(Graphics2D g) {
// toX/toY is tip of arrow and fx/fy is a point on the line -
// fx/fy is used to determine direction & angle
AffineTransform at = AffineTransform.getTranslateInstance(toX, toY);
int b = 9;
double theta = Math.toRadians(20);
// The idea of using a GeneralPath is so we can
// create the (three lines that make up the) arrow
// (only) one time and then use AffineTransform to
// place it anywhere we want.
GeneralPath path = new GeneralPath();
// distance between line and the arrow mark <** not **
// Start a new line segment from the position of (0,0).
path.moveTo(0, 0);
// Create one of the two arrow head lines.
int x = (int) (-b * Math.cos(theta));
int y = (int) (b * Math.sin(theta));
path.lineTo(x, y);
// distance between line and the arrow mark <** not **
// Make the other arrow head line.
int x2 = (int) (-b * Math.cos(-theta));
int y2 = (int) (b * Math.sin(-theta));
// path.moveTo(0,0);
path.lineTo(x2, y2);
path.closePath();
// theta is in radians
double s, t;
s = toY - fy; // calculate slopes.
t = toX - fx;
if (t != 0) {
s = s / t;
theta = Math.atan(s);
if (t < 0) theta += Math.PI;
} else if (s < 0) theta = -(Math.PI / 2);
else theta = Math.PI / 2;
at.rotate(theta);
// at.rotate(theta,toX,toY);
Shape shape = at.createTransformedShape(path);
if (checkStatus == Status.UNCHECKED) g.setColor(Color.BLACK);
else if (checkStatus == Status.COMPATIBLE) g.setColor(FOREST_GREEN);
else g.setColor(ORANGE_RED);
g.fill(shape);
g.draw(shape);
}
void drawCrosses() {
GeneralPath path = new GeneralPath();
float arm = 5;
for (int h = 0; h < linesV; h++) {
for (int v = 0; v < linesH; v++) {
float x = (float) (xstart + h * tileWidth);
float y = (float) (ystart + v * tileHeight);
path.moveTo(x - arm, y);
path.lineTo(x + arm, y);
path.moveTo(x, y - arm);
path.lineTo(x, y + arm);
}
}
showGrid(path);
}
void drawLines() {
GeneralPath path = new GeneralPath();
int width = imp.getWidth();
int height = imp.getHeight();
for (int i = 0; i < linesV; i++) {
float xoff = (float) (xstart + i * tileWidth);
path.moveTo(xoff, 0f);
path.lineTo(xoff, height);
}
for (int i = 0; i < linesH; i++) {
float yoff = (float) (ystart + i * tileHeight);
path.moveTo(0f, yoff);
path.lineTo(width, yoff);
}
showGrid(path);
}
public void setAdvance(float adv) {
advance = adv;
advp = new GeneralPath();
advp.moveTo(-2, -2);
advp.lineTo(2, 2);
advp.moveTo(-2, 2);
advp.lineTo(2, -2);
advp.moveTo(adv - 2, -2);
advp.lineTo(adv, 0);
advp.lineTo(adv + 2, -2);
advp.moveTo(adv, 0);
advp.lineTo(adv, -8);
}
public void curveTo(float x1, float y1, float x2, float y2, float x3, float y3) {
gp.curveTo(x1, y1, x2, y2, x3, y3);
this.x = x3;
this.y = y3;
points.add(new GlyphPoint(x1, y1, true));
points.add(new GlyphPoint(x2, y2, true));
points.add(new GlyphPoint(x3, y3, false));
}
/** Build a shape for the entire subtree by joining together the shapes for each of its edges. */
public Shape constructShape(DiagramBase diagram) {
GeneralPath shape = new GeneralPath();
Enumeration edges = m_edgeList.elements();
while (edges.hasMoreElements()) {
TreeEdge edge = (TreeEdge) edges.nextElement();
if (!edge.visible) {
continue;
}
Shape edgeShape = edge.getSchemeShape(diagram);
PathIterator path = edgeShape.getPathIterator(null);
shape.append(path, false);
}
BasicStroke stroke =
new BasicStroke(
diagram.getSubtreeLineWidth(), BasicStroke.CAP_ROUND, BasicStroke.JOIN_MITER);
shapeTable.put(diagram, stroke.createStrokedShape(shape));
return (Shape) shapeTable.get(diagram);
}
/**
* converts this glyph into Shape. It could be called for root's preview mode or by include
* invoke. Pushing either this GlyphFile or DIncludeInvoke should be handled before this.
*/
public Shape toShape(AffineTransform a_trans) {
int ppem = k_defaultPixelSize;
GeneralPath retval = new GeneralPath();
Iterator i = createIterator();
while (i.hasNext()) {
GlyphObject object = (GlyphObject) i.next();
if (object instanceof EContourPoint || object instanceof EHint) {
continue;
} // if
retval.append(object.toShape(a_trans, ppem), false);
} // if
return retval;
}
/**
* method to draw the tail of the balloon
*
* @param ellipseHeight the height of the ellipse
* @param fillColor the color to bill the balloon with
* @param outlineColor the color to outline the balloon with
* @param g2 the 2d graphics context
*/
protected void drawTail(int ellipseHeight, Color fillColor, Color outlineColor, Graphics2D g2) {
Point tailEnd = getTailEnd();
Point upperLeft = getUpperLeft();
int margin = getMargin();
int halfWidth = getWidth() / 2;
int topY = upperLeft.y + ellipseHeight;
int startX = upperLeft.x + halfWidth - margin;
int endX = upperLeft.x + halfWidth + margin;
GeneralPath triangle = new GeneralPath(GeneralPath.WIND_EVEN_ODD, 3);
triangle.moveTo(startX, topY);
triangle.lineTo(endX, topY);
triangle.lineTo(tailEnd.x, tailEnd.y);
triangle.lineTo(startX, topY);
g2.setColor(fillColor);
g2.fill(triangle);
g2.setColor(outlineColor);
g2.draw(new Line2D.Double(tailEnd.x, tailEnd.y, startX, topY));
g2.draw(new Line2D.Double(tailEnd.x, tailEnd.y, endX, topY));
}
/** Paints the <tt>visualEdge</tt>. No arrowhead is drawn. */
public void paint(VisualGraphComponent component, Graphics2D g2d) {
VisualEdge vEdge = (VisualEdge) component;
Rectangle fromvertexBounds;
Rectangle tovertexBounds;
GeneralPath drawPath;
VisualVertex visualVertexA = vEdge.getVisualVertexA();
VisualVertex visualVertexB = vEdge.getVisualVertexB();
GraphLayoutManager layoutmanager = vEdge.getVisualGraph().getGraphLayoutManager();
drawPath = vEdge.getGeneralPath();
// If there is no layoutmanager or there is one but the layout has not
// been initialised, by default, let us route edges as straight lines.
if (layoutmanager == null || (layoutmanager != null && !layoutmanager.isInitialized())) {
fromvertexBounds = visualVertexA.getBounds();
tovertexBounds = visualVertexB.getBounds();
// Make sure to clear the GeneralPath() first. Otherwise, the edge's previous
// path will be redrawn as well.
drawPath.reset();
// Start the line from the center of the vEdgertex
drawPath.moveTo((float) fromvertexBounds.getCenterX(), (float) fromvertexBounds.getCenterY());
drawPath.lineTo((float) tovertexBounds.getCenterX(), (float) tovertexBounds.getCenterY());
} else {
// Let the layout manager determine how the edge will be routed.
layoutmanager.routeEdge(g2d, vEdge);
}
// Draw the line
g2d.setColor(vEdge.getOutlinecolor());
g2d.draw(drawPath);
// Draw the edge label
this.paintText(vEdge, g2d);
}
void drawPoints() {
int one = 1;
int two = 2;
GeneralPath path = new GeneralPath();
for (int h = 0; h < linesV; h++) {
for (int v = 0; v < linesH; v++) {
float x = (float) (xstart + h * tileWidth);
float y = (float) (ystart + v * tileHeight);
path.moveTo(x - two, y - one);
path.lineTo(x - two, y + one);
path.moveTo(x + two, y - one);
path.lineTo(x + two, y + one);
path.moveTo(x - one, y - two);
path.lineTo(x + one, y - two);
path.moveTo(x - one, y + two);
path.lineTo(x + one, y + two);
}
}
showGrid(path);
}
/** Build a shape for the entire subtree by joining together the shapes for each of its edges. */
public Shape constructFullTextShape(DiagramBase diagram) {
GeneralPath shape = new GeneralPath();
Enumeration edges = m_edgeList.elements();
while (edges.hasMoreElements()) {
TreeEdge edge = (TreeEdge) edges.nextElement();
if (!edge.visible) {
continue;
}
Shape edgeShape = edge.getSchemeShape(diagram);
PathIterator path = edgeShape.getPathIterator(null);
shape.append(path, false);
TreeVertex vertex = edge.getSourceVertex();
if (!vertex.isVirtual()) {
shape.append(vertex.getShape(diagram).getPathIterator(null), false);
}
vertex = edge.getDestVertex();
if (!vertex.isVirtual()) {
shape.append(vertex.getShape(diagram).getPathIterator(null), false);
}
}
BasicStroke stroke = new BasicStroke(20, BasicStroke.CAP_ROUND, BasicStroke.JOIN_MITER);
shapeTable.put(diagram, stroke.createStrokedShape(shape));
return (Shape) shapeTable.get(diagram);
}
public GlyphPoint(float x, float y, boolean curvectrl) {
this.x = x;
this.y = y;
this.curvecontrol = curvectrl;
gp = new GeneralPath();
if (curvectrl) {
gp.moveTo(x - 4, y - 4);
gp.lineTo(x + 4, y + 4);
gp.moveTo(x - 4, y + 4);
gp.lineTo(x + 4, y - 4);
} else {
gp.moveTo(x - 4, y - 4);
gp.lineTo(x - 4, y + 4);
gp.lineTo(x + 4, y + 4);
gp.lineTo(x + 4, y - 4);
gp.closePath();
}
}
public Shape getShape() {
int R = Integer.parseInt(hexcolor.substring(0, 2), 16);
int G = Integer.parseInt(hexcolor.substring(2, 4), 16);
int B = Integer.parseInt(hexcolor.substring(4, 6), 16);
color = new Color(R, G, B);
Shape geom;
if (shape.equals("circle")) {
geom = new Ellipse2D.Float(-0.05f * size, -0.05f * size, 1.1f * size, 1.1f * size);
center = new Point2D.Float(size / 2, size / 2);
} else if (shape.equals("square")) {
geom = new Rectangle2D.Float(0, 0, size, size);
center = new Point2D.Float(size / 2, size / 2);
} else if (shape.equals("roundsquare")) {
geom = new RoundRectangle2D.Float(0, 0, size, size, size / 2, size / 2);
center = new Point2D.Float(size / 2, size / 2);
} else if (shape.equals("triangle")) {
GeneralPath path = new GeneralPath(GeneralPath.WIND_EVEN_ODD, 2);
float height = (float) (Math.sqrt(3) * size / 2);
path.moveTo(size / 2, size - height);
path.lineTo(size, size);
path.lineTo(0, size);
path.closePath();
geom = path;
center = new Point2D.Float(size / 2, size - height / 2);
} else if (shape.equals("star")) {
GeneralPath path = new GeneralPath(GeneralPath.WIND_EVEN_ODD, 2);
path.moveTo(size / 2, 0);
path.lineTo(7 * size / 10, 3 * size / 10);
path.lineTo(size, size / 2);
path.lineTo(7 * size / 10, 7 * size / 10);
path.lineTo(size / 2, size);
path.lineTo(3 * size / 10, 7 * size / 10);
path.lineTo(0, size / 2);
path.lineTo(3 * size / 10, 3 * size / 10);
path.closePath();
AffineTransform trans = AffineTransform.getRotateInstance(Math.PI / 4, size / 2, size / 2);
Shape shape = trans.createTransformedShape(path);
Area area = new Area(path);
area.add(new Area(shape));
trans = AffineTransform.getScaleInstance(1.2, 1.2);
shape = trans.createTransformedShape(area);
trans = AffineTransform.getTranslateInstance(-0.1 * size, -0.1 * size);
shape = trans.createTransformedShape(shape);
geom = shape;
center = new Point2D.Float(size / 2, size / 2);
} else if (shape.equals("octagon")) {
GeneralPath path = new GeneralPath(GeneralPath.WIND_EVEN_ODD, 2);
path.moveTo(size / 4, 0);
path.lineTo(3 * size / 4, 0);
path.lineTo(size, size / 4);
path.lineTo(size, 3 * size / 4);
path.lineTo(3 * size / 4, size);
path.lineTo(size / 4, size);
path.lineTo(0, 3 * size / 4);
path.lineTo(0, size / 4);
path.closePath();
geom = path;
path.closePath();
geom = path;
center = new Point2D.Float(size / 2, size / 2);
} else if (shape.equals("ellipse")) {
geom = new Ellipse2D.Float(0, 0, 3 * size / 4, size);
center = new Point2D.Float(3 * size / 8, size / 2);
} else if (shape.equals("cross")) {
GeneralPath path = new GeneralPath(GeneralPath.WIND_EVEN_ODD, 2);
path.moveTo(size / 4, 0);
path.lineTo(3 * size / 4, 0);
path.lineTo(3 * size / 4, size / 4);
path.lineTo(size, size / 4);
path.lineTo(size, 3 * size / 4);
path.lineTo(3 * size / 4, 3 * size / 4);
path.lineTo(3 * size / 4, size);
path.lineTo(size / 4, size);
path.lineTo(size / 4, 3 * size / 4);
path.lineTo(0, 3 * size / 4);
path.lineTo(0, size / 4);
path.lineTo(size / 4, size / 4);
path.closePath();
geom = path;
center = new Point2D.Float(size / 2, size / 2);
} else if (shape.equals("pentagon")) {
GeneralPath path = new GeneralPath(GeneralPath.WIND_EVEN_ODD, 2);
path.moveTo(size / 2, size);
float x, y, a;
for (int i = 1; i < 5; i++) {
a = (float) ((2 * Math.PI / 5) * i);
x = (float) (size / 2 + size / 2 * Math.sin(a));
y = (float) (size / 2 + size / 2 * Math.cos(a));
path.lineTo(x, y);
}
path.closePath();
AffineTransform trans = AffineTransform.getScaleInstance(1.1, 1.1);
Shape shape = trans.createTransformedShape(path);
trans = AffineTransform.getTranslateInstance(-0.05 * size, -0.05 * size);
shape = trans.createTransformedShape(shape);
geom = shape;
center = new Point2D.Float(size / 2, size / 2);
} else if (shape.equals("hexagon")) {
GeneralPath path = new GeneralPath(GeneralPath.WIND_EVEN_ODD, 2);
path.moveTo(size / 2, size);
float x, y, a;
for (int i = 1; i < 6; i++) {
a = (float) ((2 * Math.PI / 6) * i);
x = (float) (size / 2 + size / 2 * Math.sin(a));
y = (float) (size / 2 + size / 2 * Math.cos(a));
path.lineTo(x, y);
}
path.closePath();
geom = path;
center = new Point2D.Float(size / 2, size / 2);
} else {
geom = new Ellipse2D.Float(0, 0, size, size);
center = new Point2D.Float(size / 2, size / 2);
}
return geom;
}
/**
* Wrapper method around the <tt>paintText()</tt> method of the <tt>VisualEdgePainter</tt>
* interface. This method performs the calculation to determine the position where the text will
* be drawn.
*/
private void paintText(VisualEdge vEdge, Graphics2D g2d) {
Point fromPoint = new Point();
Point toPoint = new Point();
GeneralPath gPath = vEdge.getGeneralPath();
PathIterator iterator = gPath.getPathIterator(null);
FontMetrics fontMetrics;
float edgeSegment[] = new float[6];
double currentLength = 0;
float cumulativeLength = 0;
float x1 = 0, y1 = 0, x2 = 0, y2 = 0;
int segmentType;
boolean firstPointInitialized = false;
// Get the total length of the edge
float edgeLength = vEdge.getEdgeLength(vEdge, fromPoint, toPoint);
while (!iterator.isDone()) {
segmentType = iterator.currentSegment(edgeSegment);
switch (segmentType) {
case PathIterator.SEG_LINETO:
case PathIterator.SEG_MOVETO:
x2 = edgeSegment[0];
y2 = edgeSegment[1];
break;
case PathIterator.SEG_QUADTO:
x2 = edgeSegment[2];
y2 = edgeSegment[3];
break;
case PathIterator.SEG_CUBICTO:
x2 = edgeSegment[4];
y2 = edgeSegment[5];
}
if (firstPointInitialized) {
currentLength = Point2D.distance(x1, y1, x2, y2);
cumulativeLength += currentLength;
}
iterator.next();
// If we are halfway through the length of the edge,
// then paint the text
if (cumulativeLength >= (edgeLength / 2) || cumulativeLength >= edgeLength) {
// Ratio of the remaining half-length over the length of the current edge
double ratio = ((edgeLength / 2) - (cumulativeLength - currentLength)) / currentLength;
fontMetrics = vEdge.getFontMetrics();
// Take into account the text's length
this.paintText(
g2d,
vEdge.getFont(),
vEdge.getFontcolor(),
vEdge.getLabel(),
(float)
(fromPoint.getX() < toPoint.getX()
? (x1 + (Math.abs(x2 - x1) * ratio))
: (x1 - (Math.abs(x2 - x1) * ratio)))
- fontMetrics.stringWidth(vEdge.getLabel()) / 2,
(float)
(fromPoint.getY() < toPoint.getY()
? (y1 + (Math.abs(y2 - y1) * ratio))
: (y1 - (Math.abs(y2 - y1) * ratio))));
break;
}
x1 = x2;
y1 = y2;
if (!firstPointInitialized) {
firstPointInitialized = true;
}
}
}
public Shape createStrokedShape(Shape shape) {
GeneralPath result = new GeneralPath();
PathIterator it = new FlatteningPathIterator(shape.getPathIterator(null), FLATNESS);
float points[] = new float[6];
float moveX = 0, moveY = 0;
float lastX = 0, lastY = 0;
float thisX = 0, thisY = 0;
int type = 0;
boolean first = false;
float next = 0;
int phase = 0;
float factor = 1;
while (!it.isDone()) {
type = it.currentSegment(points);
switch (type) {
case PathIterator.SEG_MOVETO:
moveX = lastX = points[0];
moveY = lastY = points[1];
result.moveTo(moveX, moveY);
first = true;
next = wavelength / 2;
break;
case PathIterator.SEG_CLOSE:
points[0] = moveX;
points[1] = moveY;
// Fall into....
case PathIterator.SEG_LINETO:
thisX = points[0];
thisY = points[1];
float dx = thisX - lastX;
float dy = thisY - lastY;
float distance = (float) Math.sqrt(dx * dx + dy * dy);
if (distance >= next) {
float r = 1.0f / distance;
float angle = (float) Math.atan2(dy, dx);
while (distance >= next) {
float x = lastX + next * dx * r;
float y = lastY + next * dy * r;
float tx = amplitude * dy * r;
float ty = amplitude * dx * r;
if ((phase & 1) == 0) result.lineTo(x + amplitude * dy * r, y - amplitude * dx * r);
else result.lineTo(x - amplitude * dy * r, y + amplitude * dx * r);
next += wavelength;
phase++;
}
}
next -= distance;
first = false;
lastX = thisX;
lastY = thisY;
if (type == PathIterator.SEG_CLOSE) result.closePath();
break;
}
it.next();
}
// return stroke.createStrokedShape( result );
return result;
}
public void closePath() {
gp.closePath();
}
public void moveTo(float x, float y) {
gp.moveTo(x, y);
this.x = x;
this.y = y;
points.add(new GlyphPoint(x, y, false));
}
