org.stathissideris.ascii2image.graphics.DiagramShape Maven / Gradle / Ivy
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PlantUML is a component that allows to quickly write diagrams from text.
// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
/* +=======================================================================
* |
* | PlantUML : a free UML diagram generator
* |
* +=======================================================================
*
* (C) Copyright 2009-2024, Arnaud Roques
*
* Project Info: https://plantuml.com
*
* If you like this project or if you find it useful, you can support us at:
*
* https://plantuml.com/patreon (only 1$ per month!)
* https://plantuml.com/liberapay (only 1€ per month!)
* https://plantuml.com/paypal
*
*
* PlantUML 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 3 of the License, or
* (at your option) any later version.
*
* PlantUML 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, see
* Cell
* +-----+
* | A |C B
* | *--*------------------*
* | |
* +-----+
*
*
* @param pointInCell
* @param otherPoint
* @param diagram
* @return
*/
public ShapePoint getCellEdgePointBetween(ShapePoint pointInCell, ShapePoint otherPoint, Diagram diagram){
if(pointInCell == null || otherPoint == null || diagram == null)
throw new IllegalArgumentException("None of the parameters can be null");
if(pointInCell.equals(otherPoint))
throw new IllegalArgumentException("The two points cannot be the same");
ShapePoint result = null;
TextGrid.Cell cell = diagram.getCellFor(pointInCell);
if(cell == null)
throw new RuntimeException("Upexpected error, cannot find cell corresponding to point "+pointInCell+" for diagram "+diagram);
if(otherPoint.isNorthOf(pointInCell))
result = new ShapePoint(pointInCell.x,
diagram.getCellMinY(cell));
else if(otherPoint.isSouthOf(pointInCell))
result = new ShapePoint(pointInCell.x,
diagram.getCellMaxY(cell));
else if(otherPoint.isWestOf(pointInCell))
result = new ShapePoint(diagram.getCellMinX(cell),
pointInCell.y);
else if(otherPoint.isEastOf(pointInCell))
result = new ShapePoint(diagram.getCellMaxX(cell),
pointInCell.y);
if(result == null)
throw new RuntimeException("Upexpected error, cannot find cell edge point for points "+pointInCell+" and "+otherPoint+" for diagram "+diagram);
return result;
}
/**
*
* Returns C, if A is point in cell and B is otherPoint:
*
*
* Cell
* +-----+
* | A | B
* C *--*--+------------------*
* | |
* +-----+
*
*
* @param pointInCell
* @param otherPoint
* @param diagram
* @return
*/
public ShapePoint getCellEdgeProjectionPointBetween(ShapePoint pointInCell, ShapePoint otherPoint, Diagram diagram){
if(pointInCell == null || otherPoint == null || diagram == null)
throw new IllegalArgumentException("None of the parameters can be null");
if(pointInCell.equals(otherPoint))
throw new IllegalArgumentException("The two points cannot be the same: "+pointInCell+" and "+otherPoint+" passed");
ShapePoint result = null;
TextGrid.Cell cell = diagram.getCellFor(pointInCell);
if(cell == null)
throw new RuntimeException("Upexpected error, cannot find cell corresponding to point "+pointInCell+" for diagram "+diagram);
if(otherPoint.isNorthOf(pointInCell))
result = new ShapePoint(pointInCell.x,
diagram.getCellMaxY(cell));
else if(otherPoint.isSouthOf(pointInCell))
result = new ShapePoint(pointInCell.x,
diagram.getCellMinY(cell));
else if(otherPoint.isWestOf(pointInCell))
result = new ShapePoint(diagram.getCellMaxX(cell),
pointInCell.y);
else if(otherPoint.isEastOf(pointInCell))
result = new ShapePoint(diagram.getCellMinX(cell),
pointInCell.y);
if(result == null)
throw new RuntimeException("Upexpected error, cannot find cell edge point for points "+pointInCell+" and "+otherPoint+" for diagram "+diagram);
return result;
}
public boolean contains(ShapePoint point){
GeneralPath path = makeIntoPath();
if(path != null) return path.contains(point);
return false;
}
public boolean contains(Rectangle2D rect){
GeneralPath path = makeIntoPath();
if(path != null) return path.contains(rect);
return false;
}
public boolean intersects(Rectangle2D rect){
GeneralPath path = makeIntoPath();
if(path != null) return path.intersects(rect);
return false;
}
public boolean dropsShadow(){
return (isClosed()
&& getType() != DiagramShape.TYPE_ARROWHEAD
&& getType() != DiagramShape.TYPE_POINT_MARKER
&& !isStrokeDashed());
}
/**
* @return
*/
public int getType() {
return type;
}
/**
* @param i
*/
public void setType(int i) {
type = i;
}
public void moveEndsToCellEdges(TextGrid grid, Diagram diagram){
if(isClosed()) return;
ShapePoint linesEnd = (ShapePoint) points.get(0);
ShapePoint nextPoint = (ShapePoint) points.get(1);
ShapePoint projectionPoint = getCellEdgeProjectionPointBetween(linesEnd, nextPoint, diagram);
linesEnd.moveTo(projectionPoint);
linesEnd = (ShapePoint) points.get(points.size() - 1);
nextPoint = (ShapePoint) points.get(points.size() - 2);
projectionPoint = getCellEdgeProjectionPointBetween(linesEnd, nextPoint, diagram);
linesEnd.moveTo(projectionPoint);
}
public void connectEndsToAnchors(TextGrid grid, Diagram diagram){
if(isClosed()) return;
ShapePoint linesEnd;
ShapePoint nextPoint;
linesEnd = (ShapePoint) points.get(0);
nextPoint = (ShapePoint) points.get(1);
connectEndToAnchors(grid, diagram, nextPoint, linesEnd);
linesEnd = (ShapePoint) points.get(points.size() - 1);
nextPoint = (ShapePoint) points.get(points.size() - 2);
connectEndToAnchors(grid, diagram, nextPoint, linesEnd);
}
//TODO: improve connect Ends To Arrowheads to take direction into account
private void connectEndToAnchors(
TextGrid grid,
Diagram diagram,
ShapePoint nextPoint,
ShapePoint linesEnd){
if(isClosed()) return;
TextGrid.Cell anchorCell;
anchorCell = getPossibleAnchorCell(linesEnd, nextPoint, diagram);
if(grid.isArrowhead(anchorCell)){
linesEnd.x = diagram.getCellMidX(anchorCell);
linesEnd.y = diagram.getCellMidY(anchorCell);
linesEnd.setLocked(true);
} else if (grid.isCorner(anchorCell) || grid.isIntersection(anchorCell)){
linesEnd.x = diagram.getCellMidX(anchorCell);
linesEnd.y = diagram.getCellMidY(anchorCell);
linesEnd.setLocked(true);
}
}
/**
* Given the end of a line, the next point and a Diagram, it
* returns the cell that may contain intersections or arrowheads
* to which the line's end should be connected
*
* @param linesEnd
* @param nextPoint
* @param diagram
* @return
*/
private static TextGrid.Cell getPossibleAnchorCell(
ShapePoint linesEnd,
ShapePoint nextPoint,
Diagram diagram
){
ShapePoint cellPoint = null;
if(nextPoint.isNorthOf(linesEnd))
cellPoint = new ShapePoint(linesEnd.x, linesEnd.y + diagram.getCellHeight());
if(nextPoint.isSouthOf(linesEnd))
cellPoint = new ShapePoint(linesEnd.x, linesEnd.y - diagram.getCellHeight());
if(nextPoint.isWestOf(linesEnd))
cellPoint = new ShapePoint(linesEnd.x + diagram.getCellWidth(), linesEnd.y);
if(nextPoint.isEastOf(linesEnd))
cellPoint = new ShapePoint(linesEnd.x - diagram.getCellWidth(), linesEnd.y);
return diagram.getCellFor(cellPoint);
}
public String toString(){
String s = "DiagramShape, "+points.size()+" points: ";
Iterator it = getPointsIterator();
while(it.hasNext()){
ShapePoint point = (ShapePoint) it.next();
s += point;
if(it.hasNext()) s += " ";
}
return s;
}
/**
* @return
*/
public boolean isStrokeDashed() {
return isStrokeDashed;
}
/**
* @param b
*/
public void setStrokeDashed(boolean b) {
isStrokeDashed = b;
}
private GeneralPath makeStoragePath(Diagram diagram) {
if(points.size() != 4) return null;
Rectangle bounds = makeIntoPath().getBounds();
ShapePoint point1 = new ShapePoint((float)bounds.getMinX(), (float)bounds.getMinY());
ShapePoint point2 = new ShapePoint((float)bounds.getMaxX(), (float)bounds.getMinY());
ShapePoint point3 = new ShapePoint((float)bounds.getMaxX(), (float)bounds.getMaxY());
ShapePoint point4 = new ShapePoint((float)bounds.getMinX(), (float)bounds.getMaxY());
ShapePoint pointMidTop = new ShapePoint((float)bounds.getCenterX(), (float)bounds.getMinY());
ShapePoint pointMidBottom = new ShapePoint((float)bounds.getCenterX(), (float)bounds.getMaxY());
float diameterX = bounds.width;
float diameterY = 0.75f * diagram.getCellHeight();
//control point offset X, and Y
float cpOffsetX = bounds.width / 6;
float cpOffsetYTop = diagram.getCellHeight() / 2;
float cpOffsetYBottom = 10 * diagram.getCellHeight() / 14;
//float cpOffsetYBottom = cpOffsetYTop;
GeneralPath path = new GeneralPath();
//top of cylinder
path.moveTo(point1.x, point1.y);
path.curveTo(
point1.x + cpOffsetX, point1.y + cpOffsetYTop,
point2.x - cpOffsetX, point2.y + cpOffsetYTop,
point2.x, point2.y
);
path.curveTo(
point2.x - cpOffsetX, point2.y - cpOffsetYTop,
point1.x + cpOffsetX, point1.y - cpOffsetYTop,
point1.x, point1.y
);
//side of cylinder
path.moveTo(point1.x, point1.y);
path.lineTo(point4.x, point4.y);
path.curveTo(
point4.x + cpOffsetX, point4.y + cpOffsetYBottom,
point3.x - cpOffsetX, point3.y + cpOffsetYBottom,
point3.x, point3.y
);
path.lineTo(point2.x, point2.y);
return path;
}
private GeneralPath makeDocumentPath(Diagram diagram) {
if(points.size() != 4) return null;
Rectangle bounds = makeIntoPath().getBounds();
ShapePoint point1 = new ShapePoint((float)bounds.getMinX(), (float)bounds.getMinY());
ShapePoint point2 = new ShapePoint((float)bounds.getMaxX(), (float)bounds.getMinY());
ShapePoint point3 = new ShapePoint((float)bounds.getMaxX(), (float)bounds.getMaxY());
ShapePoint point4 = new ShapePoint((float)bounds.getMinX(), (float)bounds.getMaxY());
ShapePoint pointMid = new ShapePoint((float)bounds.getCenterX(), (float)bounds.getMaxY());
GeneralPath path = new GeneralPath();
path.moveTo(point1.x, point1.y);
path.lineTo(point2.x, point2.y);
path.lineTo(point3.x, point3.y);
//int controlDX = diagram.getCellWidth();
//int controlDY = diagram.getCellHeight() / 2;
int controlDX = bounds.width / 6;
int controlDY = bounds.height / 8;
path.quadTo(pointMid.x + controlDX, pointMid.y - controlDY, pointMid.x, pointMid.y);
path.quadTo(pointMid.x - controlDX, pointMid.y + controlDY, point4.x, point4.y);
path.closePath();
return path;
}
// to draw a circle with 4 Bezier curves, set the control points at this ratio of
// the radius above & below the side points
// thanks to G. Adam Stanislav, http://whizkidtech.redprince.net/bezier/circle/
private static final float KAPPA = 4f * ((float) Math.sqrt(2) - 1) / 3f;
private GeneralPath makeEllipsePath(Diagram diagram) {
if(points.size() != 4) return null;
Rectangle bounds = makeIntoPath().getBounds();
float xOff = (float) bounds.getWidth() * 0.5f * KAPPA;
float yOff = (float) bounds.getHeight() * 0.5f * KAPPA;
ShapePoint pointMid = new ShapePoint((float)bounds.getCenterX(), (float)bounds.getCenterY());
ShapePoint left = new ShapePoint((float)bounds.getMinX(), (float)pointMid.getY());
ShapePoint right = new ShapePoint((float)bounds.getMaxX(), (float)pointMid.getY());
ShapePoint top = new ShapePoint((float)pointMid.getX(), (float)bounds.getMinY());
ShapePoint bottom = new ShapePoint((float)pointMid.getX(), (float)bounds.getMaxY());
GeneralPath path = new GeneralPath();
path.moveTo(top.x, top.y);
path.curveTo(top.x + xOff, top.y, right.x, right.y - yOff, right.x, right.y);
path.curveTo(right.x, right.y + yOff, bottom.x + xOff, bottom.y, bottom.x, bottom.y);
path.curveTo(bottom.x - xOff, bottom.y, left.x, left.y + yOff, left.x, left.y);
path.curveTo(left.x, left.y - yOff, top.x - xOff, top.y, top.x, top.y);
path.closePath();
return path;
}
private GeneralPath makeTrapezoidPath(Diagram diagram, boolean inverted) {
if(points.size() != 4) return null;
Rectangle bounds = makeIntoPath().getBounds();
float offset = 0.7f * diagram.getCellWidth(); // fixed slope
if (inverted) offset = -offset;
ShapePoint ul = new ShapePoint((float)bounds.getMinX() + offset, (float)bounds.getMinY());
ShapePoint ur = new ShapePoint((float)bounds.getMaxX() - offset, (float)bounds.getMinY());
ShapePoint br = new ShapePoint((float)bounds.getMaxX() + offset, (float)bounds.getMaxY());
ShapePoint bl = new ShapePoint((float)bounds.getMinX() - offset, (float)bounds.getMaxY());
ShapePoint pointMid = new ShapePoint((float)bounds.getCenterX(), (float)bounds.getMaxY());
GeneralPath path = new GeneralPath();
path.moveTo(ul.x, ul.y);
path.lineTo(ur.x, ur.y);
path.lineTo(br.x, br.y);
path.lineTo(bl.x, bl.y);
path.closePath();
return path;
}
private GeneralPath makeDecisionPath(Diagram diagram) {
if(points.size() != 4) return null;
Rectangle bounds = makeIntoPath().getBounds();
ShapePoint pointMid = new ShapePoint((float)bounds.getCenterX(), (float)bounds.getCenterY());
ShapePoint left = new ShapePoint((float)bounds.getMinX(), (float)pointMid.getY());
ShapePoint right = new ShapePoint((float)bounds.getMaxX(), (float)pointMid.getY());
ShapePoint top = new ShapePoint((float)pointMid.getX(), (float)bounds.getMinY());
ShapePoint bottom = new ShapePoint((float)pointMid.getX(), (float)bounds.getMaxY());
GeneralPath path = new GeneralPath();
path.moveTo(left.x, left.y);
path.lineTo(top.x, top.y);
path.lineTo(right.x, right.y);
path.lineTo(bottom.x, bottom.y);
path.closePath();
return path;
}
private GeneralPath makeIOPath(Diagram diagram) {
if(points.size() != 4) return null;
Rectangle bounds = makeIntoPath().getBounds();
ShapePoint point1 = new ShapePoint((float)bounds.getMinX(), (float)bounds.getMinY());
ShapePoint point2 = new ShapePoint((float)bounds.getMaxX(), (float)bounds.getMinY());
ShapePoint point3 = new ShapePoint((float)bounds.getMaxX(), (float)bounds.getMaxY());
ShapePoint point4 = new ShapePoint((float)bounds.getMinX(), (float)bounds.getMaxY());
float offset = diagram.getCellWidth() / 2;
GeneralPath path = new GeneralPath();
path.moveTo(point1.x + offset, point1.y);
path.lineTo(point2.x + offset, point2.y);
path.lineTo(point3.x - offset, point3.y);
path.lineTo(point4.x - offset, point4.y);
path.closePath();
return path;
}
public CustomShapeDefinition getDefinition() {
return definition;
}
public void setDefinition(CustomShapeDefinition definition) {
this.definition = definition;
}
}