/* 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.gates;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.util.Map;
import javax.swing.Icon;
import com.cburch.logisim.analyze.model.Expression;
import com.cburch.logisim.analyze.model.Expressions;
import com.cburch.logisim.circuit.ExpressionComputer;
import com.cburch.logisim.comp.TextField;
import com.cburch.logisim.data.Attribute;
import com.cburch.logisim.data.AttributeOption;
import com.cburch.logisim.data.AttributeSet;
import com.cburch.logisim.data.Attributes;
import com.cburch.logisim.data.BitWidth;
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.InstanceFactory;
import com.cburch.logisim.instance.InstancePainter;
import com.cburch.logisim.instance.InstanceState;
import com.cburch.logisim.instance.Port;
import com.cburch.logisim.instance.StdAttr;
import com.cburch.logisim.prefs.AppPreferences;
import com.cburch.logisim.tools.key.BitWidthConfigurator;
import com.cburch.logisim.util.GraphicsUtil;
import com.cburch.logisim.util.Icons;
import static com.cburch.logisim.util.LocaleString.*;
class NotGate extends InstanceFactory {
public static final AttributeOption SIZE_NARROW
= new AttributeOption(Integer.valueOf(20), getFromLocale("gateSizeNarrowOpt"));
public static final AttributeOption SIZE_WIDE
= new AttributeOption(Integer.valueOf(30), getFromLocale("gateSizeWideOpt"));
public static final Attribute<AttributeOption> ATTR_SIZE
= Attributes.forOption("size", getFromLocale("gateSizeAttr"),
new AttributeOption[] { SIZE_NARROW, SIZE_WIDE });
private static final String RECT_LABEL = "1";
private static final Icon toolIcon = Icons.getIcon("notGate.svg");
private static final Icon toolIconRect = Icons.getIcon("notGateRect.svg");
private static final Icon toolIconDin = Icons.getIcon("dinNotGate.svg");
public static InstanceFactory FACTORY = new NotGate();
private NotGate() {
super("NOT Gate", getFromLocale("notGateComponent"));
setAttributes(new Attribute[] {
StdAttr.FACING, StdAttr.WIDTH, ATTR_SIZE,
GateAttributes.ATTR_OUTPUT,
StdAttr.LABEL, StdAttr.LABEL_FONT,
}, new Object[] {
Direction.EAST, BitWidth.ONE, SIZE_WIDE,
GateAttributes.OUTPUT_01,
"", StdAttr.DEFAULT_LABEL_FONT,
});
setFacingAttribute(StdAttr.FACING);
setKeyConfigurator(new BitWidthConfigurator(StdAttr.WIDTH));
}
@Override
public Bounds getOffsetBounds(AttributeSet attrs) {
Object value = attrs.getValue(ATTR_SIZE);
if (value == SIZE_NARROW) {
Direction facing = attrs.getValue(StdAttr.FACING);
if (facing == Direction.SOUTH) {
return Bounds.create(-9, -20, 18, 20);
}
if (facing == Direction.NORTH) {
return Bounds.create(-9, 0, 18, 20);
}
if (facing == Direction.WEST) {
return Bounds.create(0, -9, 20, 18);
}
return Bounds.create(-20, -9, 20, 18);
} else {
Direction facing = attrs.getValue(StdAttr.FACING);
if (facing == Direction.SOUTH) {
return Bounds.create(-9, -30, 18, 30);
}
if (facing == Direction.NORTH) {
return Bounds.create(-9, 0, 18, 30);
}
if (facing == Direction.WEST) {
return Bounds.create(0, -9, 30, 18);
}
return Bounds.create(-30, -9, 30, 18);
}
}
@Override
public void propagate(InstanceState state) {
Value in = state.getPort(1);
Value out = in.not();
out = Buffer.repair(state, out);
state.setPort(0, out, GateAttributes.DELAY);
}
//
// methods for instances
//
@Override
protected void configureNewInstance(Instance instance) {
configurePorts(instance);
instance.addAttributeListener();
String gateShape = AppPreferences.GATE_SHAPE.get();
configureLabel(instance, gateShape.equals(AppPreferences.SHAPE_RECTANGULAR), null);
}
@Override
protected void instanceAttributeChanged(Instance instance, Attribute<?> attr) {
if (attr == ATTR_SIZE || attr == StdAttr.FACING) {
instance.recomputeBounds();
configurePorts(instance);
String gateShape = AppPreferences.GATE_SHAPE.get();
configureLabel(instance, gateShape.equals(AppPreferences.SHAPE_RECTANGULAR), null);
}
}
private void configurePorts(Instance instance) {
Object size = instance.getAttributeValue(ATTR_SIZE);
Direction facing = instance.getAttributeValue(StdAttr.FACING);
int dx = size == SIZE_NARROW ? -20 : -30;
Port[] ports = new Port[2];
ports[0] = new Port(0, 0, Port.OUTPUT, StdAttr.WIDTH);
Location out = Location.create(0, 0).translate(facing, dx);
ports[1] = new Port(out.getX(), out.getY(), Port.INPUT, StdAttr.WIDTH);
instance.setPorts(ports);
}
@Override
protected Object getInstanceFeature(final Instance instance, Object key) {
if (key == ExpressionComputer.class) {
return new ExpressionComputer() {
@Override
public void computeExpression(Map<Location,Expression> expressionMap) {
Expression e = expressionMap.get(instance.getPortLocation(1));
if (e != null) {
expressionMap.put(instance.getPortLocation(0), Expressions.not(e));
}
}
};
}
return super.getInstanceFeature(instance, key);
}
//
// painting methods
//
@Override
public void paintIcon(InstancePainter painter) {
Graphics g = painter.getGraphics();
g.setColor(Color.black);
if (painter.getGateShape() == AppPreferences.SHAPE_RECTANGULAR) {
if (toolIconRect != null) {
toolIconRect.paintIcon(painter.getDestination(), g, 2, 2);
} else {
g.drawRect(0, 2, 16, 16);
GraphicsUtil.drawCenteredText(g, RECT_LABEL, 8, 8);
g.drawOval(16, 8, 4, 4);
}
} else if (painter.getGateShape() == AppPreferences.SHAPE_DIN40700) {
if (toolIconDin != null) {
toolIconDin.paintIcon(painter.getDestination(), g, 2, 2);
} else {
g.drawRect(0, 2, 16, 16);
GraphicsUtil.drawCenteredText(g, RECT_LABEL, 8, 8);
g.drawOval(16, 8, 4, 4);
}
} else {
if (toolIcon != null) {
toolIcon.paintIcon(painter.getDestination(), g, 2, 2);
} else {
int[] xp = new int[4];
int[] yp = new int[4];
xp[0] = 15; yp[0] = 10;
xp[1] = 1; yp[1] = 3;
xp[2] = 1; yp[2] = 17;
xp[3] = 15; yp[3] = 10;
g.drawPolyline(xp, yp, 4);
g.drawOval(15, 8, 4, 4);
}
}
}
@Override
public void paintGhost(InstancePainter painter) {
paintBase(painter);
}
@Override
public void paintInstance(InstancePainter painter) {
painter.getGraphics().setColor(Color.BLACK);
paintBase(painter);
painter.drawPorts();
painter.drawLabel();
}
private void paintBase(InstancePainter painter) {
Graphics g = painter.getGraphics();
Direction facing = painter.getAttributeValue(StdAttr.FACING);
Location loc = painter.getLocation();
int x = loc.getX();
int y = loc.getY();
g.translate(x, y);
double rotate = 0.0;
if (facing != null && facing != Direction.EAST && g instanceof Graphics2D) {
rotate = -facing.toRadians();
((Graphics2D) g).rotate(rotate);
}
Object shape = painter.getGateShape();
if (shape == AppPreferences.SHAPE_RECTANGULAR) {
paintRectangularBase(g, painter);
} else if (shape == AppPreferences.SHAPE_DIN40700) {
int width = painter.getAttributeValue(ATTR_SIZE) == SIZE_NARROW ? 20 : 30;
PainterDin.paintAnd(painter, width, 18, true);
} else {
PainterShaped.paintNot(painter);
}
if (rotate != 0.0) {
((Graphics2D) g).rotate(-rotate);
}
g.translate(-x, -y);
}
private void paintRectangularBase(Graphics g, InstancePainter painter) {
GraphicsUtil.switchToWidth(g, 2);
if (painter.getAttributeValue(ATTR_SIZE) == SIZE_NARROW) {
g.drawRect(-20, -9, 14, 18);
GraphicsUtil.drawCenteredText(g, RECT_LABEL, -13, 0);
g.drawOval(-6, -3, 6, 6);
} else {
g.drawRect(-30, -9, 20, 18);
GraphicsUtil.drawCenteredText(g, RECT_LABEL, -20, 0);
g.drawOval(-10, -5, 9, 9);
}
GraphicsUtil.switchToWidth(g, 1);
}
static void configureLabel(Instance instance, boolean isRectangular,
Location control) {
Object facing = instance.getAttributeValue(StdAttr.FACING);
Bounds bds = instance.getBounds();
int x;
int y;
int halign;
if (facing == Direction.NORTH || facing == Direction.SOUTH) {
x = bds.getX() + bds.getWidth() / 2 + 2;
y = bds.getY() - 2;
halign = TextField.H_LEFT;
// west or east
} else {
y = isRectangular ? bds.getY() - 2 : bds.getY();
if (control != null && control.getY() == bds.getY()) {
// the control line will get in the way
x = control.getX() + 2;
halign = TextField.H_LEFT;
} else {
x = bds.getX() + bds.getWidth() / 2;
halign = TextField.H_CENTER;
}
}
instance.setTextField(StdAttr.LABEL, StdAttr.LABEL_FONT, x, y,
halign, TextField.V_BASELINE);
}
}