?? statemanager.java
字號:
import java.awt.*;
public class StateManager
{
private State currentState;
RectState rState;
ArrowState aState;
CircleState cState;
FillState fState;
public StateManager(Mediator med)
{
rState = new RectState(med);
cState = new CircleState(med);
aState = new ArrowState(med);
fState = new FillState(med);
currentState = aState;
}
public void setRect()
{
currentState = rState;
}
public void setCircle()
{
currentState = cState;
}
public void setFill()
{
currentState = fState;
}
public void setArrow()
{
currentState = aState;
}
public void mouseDown(int x, int y)
{
currentState.mouseDown(x, y);
}
public void mouseUp(int x, int y)
{
currentState.mouseUp(x, y);
}
public void mouseDrag(int x, int y)
{
currentState.mouseDrag(x, y);
}
public void select(Drawing d, Color c)
{
currentState.select(d, c);
}
}
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