/*******************************************************************************
* Mission Control Technologies, Copyright (c) 2009-2012, United States Government
* as represented by the Administrator of the National Aeronautics and Space
* Administration. All rights reserved.
*
* The MCT platform is licensed under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*
* MCT includes source code licensed under additional open source licenses. See
* the MCT Open Source Licenses file included with this distribution or the About
* MCT Licenses dialog available at runtime from the MCT Help menu for additional
* information.
*******************************************************************************/
package gov.nasa.arc.mct.nontimeplot.view;
import java.awt.Font;
import java.awt.Polygon;
import java.awt.Rectangle;
import java.awt.Shape;
import java.awt.font.FontRenderContext;
import java.awt.geom.AffineTransform;
import java.util.ArrayList;
import java.util.List;
/**
* Defines set of shapes to be used as markers when plotting lines.
*
*/
public class NonTimeShapePalette {
private static List<Shape> shapeSet = new ArrayList<Shape>();
private static final double SIZE = 9.0;
private static final double POLYGON_RESOLUTION = 1000;
private static void loadShapes() {
addShape(makeRegularPoly(4), 2, 0.1250);
addShape(makeRegularPoly(3), 4);
addShape(makeHourglass(), 4, 0.1250);
addShape(makeLBlock(), 8);
addShape(makeCross(), 2, 0.1250);
addShape(makeChevron(), 8);
addShape(makeRegularPoly(8), 1);
addShape(makeStar() , 1);
}
private static Shape makeChevron() {
Polygon p = new Polygon();
p.addPoint(-2, 1);
p.addPoint( 0, 3);
p.addPoint( 2, 1);
p.addPoint( 2, -3);
p.addPoint( 0, -1);
p.addPoint(-2, -3);
return AffineTransform
.getScaleInstance(SIZE/(2*Math.sqrt(5)), SIZE/(2*Math.sqrt(5)))
.createTransformedShape(p);
}
private static Shape makeTBlock() {
Polygon p = new Polygon();
p.addPoint(-1, -1);
p.addPoint(-3, -1);
p.addPoint(-3, 1);
p.addPoint(-1, 1);
p.addPoint(-1, 3);
p.addPoint( 1, 3);
p.addPoint( 1, -3);
p.addPoint(-1, -3);
return AffineTransform
.getScaleInstance(SIZE/5, SIZE/5)
.createTransformedShape(p);
}
private static Shape makeStovepipe() {
Polygon p = new Polygon();
p.addPoint(-1, 0);
p.addPoint(-1, -3);
p.addPoint( 1, -3);
p.addPoint( 1, 0);
p.addPoint( 3, 3);
p.addPoint(-3, 3);
return AffineTransform
.getScaleInstance(SIZE/6, SIZE/6)
.createTransformedShape(p);
}
private static Shape makeCross() {
Polygon p = new Polygon();
p.addPoint(-1, -1);
p.addPoint(-1, -3);
p.addPoint( 1, -3);
p.addPoint( 1, -1);
p.addPoint( 3, -1);
p.addPoint( 3, 1);
p.addPoint( 1, 1);
p.addPoint( 1, 3);
p.addPoint(-1, 3);
p.addPoint(-1, 1);
p.addPoint(-3, 1);
p.addPoint(-3, -1);
return AffineTransform
.getScaleInstance(SIZE/6, SIZE/6)
.createTransformedShape(p);
}
private static Shape makeStar() {
Polygon p = new Polygon();
double r2 = 1.41 * SIZE/2;
double r1 = r2 / (1 + (1+Math.sqrt(5))/2);
double step = Math.PI * 2.0 / (double) 10;
for (int i = 0; i < 10; i++) {
double r = (i % 2 == 0) ? r2 : r1;
double angle = step * i;
int x = (int) (Math.sin(angle) * r * POLYGON_RESOLUTION);
int y = -(int) (Math.cos(angle) * r * POLYGON_RESOLUTION);
p.addPoint(x, y);
}
return AffineTransform
.getScaleInstance(1/POLYGON_RESOLUTION, 1/POLYGON_RESOLUTION)
.createTransformedShape(p);
}
private static Shape makeHourglass() {
Polygon p = new Polygon();
p.addPoint( 0, 0);
p.addPoint( 1, 1);
p.addPoint(-1, 1);
p.addPoint( 0, 0);
p.addPoint(-1, -1);
p.addPoint( 1, -1);
return AffineTransform
.getScaleInstance(SIZE/2, SIZE/2)
.createTransformedShape(p);
}
private static Shape makeLBlock() {
Polygon p = new Polygon();
p.addPoint(-2, -2);
p.addPoint(-2, -6);
p.addPoint( 2, -6);
p.addPoint( 2, 2);
p.addPoint(-6, 2);
p.addPoint(-6, -2);
return AffineTransform
.getScaleInstance(SIZE/8, SIZE/8)
.createTransformedShape(p);
}
private static Shape makeRegularPoly (int sides) {
Polygon p = new Polygon();
double r = 1.41 * SIZE/2;
double step = Math.PI * 2.0 / (double) sides;
for (int i = 0; i < sides; i++) {
double angle = step * i;
int x = (int) (Math.sin(angle) * r * POLYGON_RESOLUTION);
int y = -(int) (Math.cos(angle) * r * POLYGON_RESOLUTION);
p.addPoint(x, y);
}
return AffineTransform
.getScaleInstance(1/POLYGON_RESOLUTION, 1/POLYGON_RESOLUTION)
.createTransformedShape(p);
}
private static void addShape(Shape shape, int count) {
addShape(shape, count, 1.0f / (float) count);
}
private static void addShape(Shape shape, int count, double rotationStep) {
double step = Math.PI * 2.0 * rotationStep;
double angle = 0.0;
shapeSet.add(shape);
for (int i = 1; i < count; i++) {
angle += step;
AffineTransform transform = AffineTransform.getRotateInstance(angle);
shapeSet.add(transform.createTransformedShape(shape));
}
}
/**
* Return the ith shape in the palette.
*
* @param i the index of the shape to use
* @return the ith color
*/
public static Shape getShape(int i) {
if (shapeSet.size() == 0) {
loadShapes();
}
if (i >= shapeSet.size()){
throw new IllegalArgumentException("Requested shape " + i + " out of range [ 0 .. "+ shapeSet.size() + "]");
}
return shapeSet.get(i);
}
/**
* Return the number of shapes in the palette
* @return the number of shapes
*/
public static int getShapeCount() {
if (shapeSet.size() == 0) {
loadShapes();
}
return shapeSet.size();
}
public static Shape getShape(String character, FontRenderContext frc) {
Font font = Font.decode(Font.MONOSPACED).deriveFont(Font.BOLD, 18);
Shape shape = font.createGlyphVector(frc, character).getGlyphOutline(0);
Rectangle bounds = shape.getBounds();
shape = AffineTransform.getTranslateInstance(-bounds.width / (double) 2, bounds.height / (double) 2).createTransformedShape(shape);
return shape;
}
}