/* 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.std.io;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.MouseEvent;
import com.cburch.logisim.circuit.Wire;
import com.cburch.logisim.data.Attribute;
import com.cburch.logisim.data.AttributeSet;
import com.cburch.logisim.data.Bounds;
import com.cburch.logisim.data.Direction;
import com.cburch.logisim.data.Location;
import com.cburch.logisim.data.Value;
import com.cburch.logisim.instance.Instance;
import com.cburch.logisim.instance.InstanceDataSingleton;
import com.cburch.logisim.instance.InstanceFactory;
import com.cburch.logisim.instance.InstanceLogger;
import com.cburch.logisim.instance.InstancePainter;
import com.cburch.logisim.instance.InstancePoker;
import com.cburch.logisim.instance.InstanceState;
import com.cburch.logisim.instance.Port;
import com.cburch.logisim.instance.StdAttr;
import com.cburch.logisim.util.GraphicsUtil;
public class Button extends InstanceFactory {
private static final int DEPTH = 3;
public Button() {
super("Button", Strings.getter("buttonComponent"));
setAttributes(new Attribute[] {
StdAttr.FACING, Io.ATTR_COLOR,
StdAttr.LABEL, Io.ATTR_LABEL_LOC,
StdAttr.LABEL_FONT, Io.ATTR_LABEL_COLOR
}, new Object[] {
Direction.EAST, Color.WHITE,
"", Io.LABEL_CENTER,
StdAttr.DEFAULT_LABEL_FONT, Color.BLACK
});
setFacingAttribute(StdAttr.FACING);
setIconName("button.gif");
setPorts(new Port[] { new Port(0, 0, Port.OUTPUT, 1) });
setInstancePoker(Poker.class);
setInstanceLogger(Logger.class);
}
@Override
public Bounds getOffsetBounds(AttributeSet attrs) {
Direction facing = attrs.getValue(StdAttr.FACING);
return Bounds.create(-20, -10, 20, 20).rotate(Direction.EAST, facing, 0, 0);
}
@Override
protected void configureNewInstance(Instance instance) {
instance.addAttributeListener();
computeTextField(instance);
}
@Override
protected void instanceAttributeChanged(Instance instance, Attribute<?> attr) {
if (attr == StdAttr.FACING) {
instance.recomputeBounds();
computeTextField(instance);
} else if (attr == Io.ATTR_LABEL_LOC) {
computeTextField(instance);
}
}
private void computeTextField(Instance instance) {
Direction facing = instance.getAttributeValue(StdAttr.FACING);
Object labelLoc = instance.getAttributeValue(Io.ATTR_LABEL_LOC);
Bounds bds = instance.getBounds();
int x = bds.getX() + bds.getWidth() / 2;
int y = bds.getY() + bds.getHeight() / 2;
int halign = GraphicsUtil.H_CENTER;
int valign = GraphicsUtil.V_CENTER;
if (labelLoc == Io.LABEL_CENTER) {
x = bds.getX() + (bds.getWidth() - DEPTH) / 2;
y = bds.getY() + (bds.getHeight() - DEPTH) / 2;
} else if (labelLoc == Direction.NORTH) {
y = bds.getY() - 2;
valign = GraphicsUtil.V_BOTTOM;
} else if (labelLoc == Direction.SOUTH) {
y = bds.getY() + bds.getHeight() + 2;
valign = GraphicsUtil.V_TOP;
} else if (labelLoc == Direction.EAST) {
x = bds.getX() + bds.getWidth() + 2;
halign = GraphicsUtil.H_LEFT;
} else if (labelLoc == Direction.WEST) {
x = bds.getX() - 2;
halign = GraphicsUtil.H_RIGHT;
}
if (labelLoc == facing) {
if (labelLoc == Direction.NORTH || labelLoc == Direction.SOUTH) {
x += 2;
halign = GraphicsUtil.H_LEFT;
} else {
y -= 2;
valign = GraphicsUtil.V_BOTTOM;
}
}
instance.setTextField(StdAttr.LABEL, StdAttr.LABEL_FONT,
x, y, halign, valign);
}
@Override
public void propagate(InstanceState state) {
InstanceDataSingleton data = (InstanceDataSingleton) state.getData();
Value val = data == null ? Value.FALSE : (Value) data.getValue();
state.setPort(0, val, 1);
}
@Override
public void paintInstance(InstancePainter painter) {
Bounds bds = painter.getBounds();
int x = bds.getX();
int y = bds.getY();
int w = bds.getWidth();
int h = bds.getHeight();
Value val;
if (painter.getShowState()) {
InstanceDataSingleton data = (InstanceDataSingleton) painter.getData();
val = data == null ? Value.FALSE : (Value) data.getValue();
} else {
val = Value.FALSE;
}
Color color = painter.getAttributeValue(Io.ATTR_COLOR);
if (!painter.shouldDrawColor()) {
int hue = (color.getRed() + color.getGreen() + color.getBlue()) / 3;
color = new Color(hue, hue, hue);
}
Graphics g = painter.getGraphics();
int depress;
if (val == Value.TRUE) {
x += DEPTH;
y += DEPTH;
Object labelLoc = painter.getAttributeValue(Io.ATTR_LABEL_LOC);
if (labelLoc == Io.LABEL_CENTER || labelLoc == Direction.NORTH
|| labelLoc == Direction.WEST) {
depress = DEPTH;
} else {
depress = 0;
}
Object facing = painter.getAttributeValue(StdAttr.FACING);
if (facing == Direction.NORTH || facing == Direction.WEST) {
Location p = painter.getLocation();
int px = p.getX();
int py = p.getY();
GraphicsUtil.switchToWidth(g, Wire.WIDTH);
g.setColor(Value.TRUE_COLOR);
if (facing == Direction.NORTH) g.drawLine(px, py, px, py + 10);
else g.drawLine(px, py, px + 10, py);
GraphicsUtil.switchToWidth(g, 1);
}
g.setColor(color);
g.fillRect(x, y, w - DEPTH, h - DEPTH);
g.setColor(Color.BLACK);
g.drawRect(x, y, w - DEPTH, h - DEPTH);
} else {
depress = 0;
int[] xp = new int[] { x, x + w - DEPTH, x + w, x + w, x + DEPTH, x };
int[] yp = new int[] { y, y, y + DEPTH, y + h, y + h, y + h - DEPTH };
g.setColor(color.darker());
g.fillPolygon(xp, yp, xp.length);
g.setColor(color);
g.fillRect(x, y, w - DEPTH, h - DEPTH);
g.setColor(Color.BLACK);
g.drawRect(x, y, w - DEPTH, h - DEPTH);
g.drawLine(x + w - DEPTH, y + h - DEPTH, x + w, y + h);
g.drawPolygon(xp, yp, xp.length);
}
g.translate(depress, depress);
g.setColor(painter.getAttributeValue(Io.ATTR_LABEL_COLOR));
painter.drawLabel();
g.translate(-depress, -depress);
painter.drawPorts();
}
public static class Poker extends InstancePoker {
@Override
public void mousePressed(InstanceState state, MouseEvent e) {
setValue(state, Value.TRUE);
}
@Override
public void mouseReleased(InstanceState state, MouseEvent e) {
setValue(state, Value.FALSE);
}
private void setValue(InstanceState state, Value val) {
InstanceDataSingleton data = (InstanceDataSingleton) state.getData();
if (data == null) {
state.setData(new InstanceDataSingleton(val));
} else {
data.setValue(val);
}
state.getInstance().fireInvalidated();
}
}
public static class Logger extends InstanceLogger {
@Override
public String getLogName(InstanceState state, Object option) {
return state.getAttributeValue(StdAttr.LABEL);
}
@Override
public Value getLogValue(InstanceState state, Object option) {
InstanceDataSingleton data = (InstanceDataSingleton) state.getData();
return data == null ? Value.FALSE : (Value) data.getValue();
}
}
}