/*******************************************************************************
* This file is part of logisim-evolution.
*
* logisim-evolution is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* logisim-evolution 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with logisim-evolution. If not, see <http://www.gnu.org/licenses/>.
*
* Original code by Carl Burch (http://www.cburch.com), 2011.
* Subsequent modifications by :
* + Haute École Spécialisée Bernoise
* http://www.bfh.ch
* + Haute École du paysage, d'ingénierie et d'architecture de Genève
* http://hepia.hesge.ch/
* + Haute École d'Ingénierie et de Gestion du Canton de Vaud
* http://www.heig-vd.ch/
* The project is currently maintained by :
* + REDS Institute - HEIG-VD
* Yverdon-les-Bains, Switzerland
* http://reds.heig-vd.ch
*******************************************************************************/
package com.cburch.draw.shapes;
import java.awt.Graphics;
import java.util.List;
import java.util.Random;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import com.cburch.draw.model.CanvasObject;
import com.cburch.logisim.data.Attribute;
import com.cburch.logisim.data.Bounds;
import com.cburch.logisim.data.Location;
public class RoundRectangle extends Rectangular {
private static boolean inCircle(int qx, int qy, int cx, int cy, int rx,
int ry) {
double dx = qx - cx;
double dy = qy - cy;
double sum = (dx * dx) / (4 * rx * rx) + (dy * dy) / (4 * ry * ry);
return sum <= 0.25;
}
private int radius;
public RoundRectangle(int x, int y, int w, int h) {
super(x, y, w, h);
this.radius = 10;
}
@Override
protected boolean contains(int x, int y, int w, int h, Location q) {
int qx = q.getX();
int qy = q.getY();
int rx = radius;
int ry = radius;
if (2 * rx > w)
rx = w / 2;
if (2 * ry > h)
ry = h / 2;
if (!isInRect(qx, qy, x, y, w, h)) {
return false;
} else if (qx < x + rx) {
if (qy < y + ry)
return inCircle(qx, qy, x + rx, y + ry, rx, ry);
else if (qy < y + h - ry)
return true;
else
return inCircle(qx, qy, x + rx, y + h - ry, rx, ry);
} else if (qx < x + w - rx) {
return true;
} else {
if (qy < y + ry)
return inCircle(qx, qy, x + w - rx, y + ry, rx, ry);
else if (qy < y + h - ry)
return true;
else
return inCircle(qx, qy, x + w - rx, y + h - ry, rx, ry);
}
}
@Override
public void draw(Graphics g, int x, int y, int w, int h) {
int diam = 2 * radius;
if (setForFill(g))
g.fillRoundRect(x, y, w, h, diam, diam);
if (setForStroke(g))
g.drawRoundRect(x, y, w, h, diam, diam);
}
@Override
public List<Attribute<?>> getAttributes() {
return DrawAttr.getRoundRectAttributes(getPaintType());
}
@Override
public String getDisplayName() {
return Strings.get("shapeRoundRect");
}
@Override
protected Location getRandomPoint(Bounds bds, Random rand) {
if (getPaintType() == DrawAttr.PAINT_STROKE) {
int w = getWidth();
int h = getHeight();
int r = radius;
int horz = Math.max(0, w - 2 * r); // length of horizontal segment
int vert = Math.max(0, h - 2 * r);
double len = 2 * horz + 2 * vert + 2 * Math.PI * r;
double u = len * rand.nextDouble();
int x = getX();
int y = getY();
if (u < horz) {
x += r + (int) u;
} else if (u < 2 * horz) {
x += r + (int) (u - horz);
y += h;
} else if (u < 2 * horz + vert) {
y += r + (int) (u - 2 * horz);
} else if (u < 2 * horz + 2 * vert) {
x += w;
y += (u - 2 * w - h);
} else {
int rx = radius;
int ry = radius;
if (2 * rx > w)
rx = w / 2;
if (2 * ry > h)
ry = h / 2;
u = 2 * Math.PI * rand.nextDouble();
int dx = (int) Math.round(rx * Math.cos(u));
int dy = (int) Math.round(ry * Math.sin(u));
if (dx < 0) {
x += r + dx;
} else {
x += r + horz + dx;
}
if (dy < 0) {
y += r + dy;
} else {
y += r + vert + dy;
}
}
int d = getStrokeWidth();
if (d > 1) {
x += rand.nextInt(d) - d / 2;
y += rand.nextInt(d) - d / 2;
}
return Location.create(x, y);
} else {
return super.getRandomPoint(bds, rand);
}
}
@Override
@SuppressWarnings("unchecked")
public <V> V getValue(Attribute<V> attr) {
if (attr == DrawAttr.CORNER_RADIUS) {
return (V) Integer.valueOf(radius);
} else {
return super.getValue(attr);
}
}
@Override
public boolean matches(CanvasObject other) {
if (other instanceof RoundRectangle) {
RoundRectangle that = (RoundRectangle) other;
return super.matches(other) && this.radius == that.radius;
} else {
return false;
}
}
@Override
public int matchesHashCode() {
return super.matchesHashCode() * 31 + radius;
}
@Override
public Element toSvgElement(Document doc) {
return SvgCreator.createRoundRectangle(doc, this);
}
@Override
public void updateValue(Attribute<?> attr, Object value) {
if (attr == DrawAttr.CORNER_RADIUS) {
radius = ((Integer) value).intValue();
} else {
super.updateValue(attr, value);
}
}
}