/* Copyright (c) 2010, Carl Burch. License information is located in the
* com.cburch.logisim.Main source code and at www.cburch.com/logisim/. */
package com.cburch.logisim.gui.appear;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.util.Collection;
import java.util.Collections;
import javax.swing.JComponent;
import com.cburch.logisim.circuit.Circuit;
import com.cburch.logisim.circuit.CircuitState;
import com.cburch.logisim.circuit.appear.AppearancePort;
import com.cburch.logisim.comp.Component;
import com.cburch.logisim.comp.ComponentDrawContext;
import com.cburch.logisim.data.Bounds;
import com.cburch.logisim.instance.Instance;
import com.cburch.logisim.std.wiring.Pin;
import com.cburch.logisim.util.GraphicsUtil;
public class LayoutThumbnail extends JComponent {
private static final int BORDER = 10;
private CircuitState circuitState;
private Collection<Instance> ports;
public LayoutThumbnail() {
circuitState = null;
ports = null;
setBackground(Color.LIGHT_GRAY);
setPreferredSize(new Dimension(200, 200));
}
public void setCircuit(CircuitState circuitState,
Collection<Instance> ports) {
this.circuitState = circuitState;
this.ports = ports;
repaint();
}
@Override
protected void paintComponent(Graphics g) {
if (circuitState != null) {
Circuit circuit = circuitState.getCircuit();
Bounds bds = circuit.getBounds(g);
Dimension size = getSize();
double scaleX = (double) (size.width - 2 * BORDER) / bds.getWidth();
double scaleY = (double) (size.height - 2 * BORDER) / bds.getHeight();
double scale = Math.min(1.0, Math.min(scaleX, scaleY));
Graphics gCopy = g.create();
int borderX = (int) ((size.width - bds.getWidth() * scale) / 2);
int borderY = (int) ((size.height - bds.getHeight() * scale) / 2);
gCopy.translate(borderX, borderY);
if (scale != 1.0 && g instanceof Graphics2D) {
((Graphics2D) gCopy).scale(scale, scale);
}
gCopy.translate(-bds.getX(), -bds.getY());
ComponentDrawContext context = new ComponentDrawContext(this, circuit,
circuitState, g, gCopy);
context.setShowState(false);
context.setShowColor(false);
circuit.draw(context, Collections.<Component>emptySet());
if (ports != null) {
gCopy.setColor(AppearancePort.COLOR);
int width = Math.max(4, (int) ((2 / scale) + 0.5));
GraphicsUtil.switchToWidth(gCopy, width);
for (Instance port : ports) {
Bounds b = port.getBounds();
int x = b.getX();
int y = b.getY();
int w = b.getWidth();
int h = b.getHeight();
if (Pin.FACTORY.isInputPin(port)) {
gCopy.drawRect(x, y, w, h);
} else {
if (b.getWidth() > 25) {
gCopy.drawRoundRect(x, y, w, h, 4, 4);
} else {
gCopy.drawOval(x, y, w, h);
}
}
}
}
gCopy.dispose();
g.setColor(Color.BLACK);
GraphicsUtil.switchToWidth(g, 2);
g.drawRect(0, 0, size.width - 2, size.height - 2);
}
}
}