//-----
public void pickRect(int x, int y)
{
//save current selected rectangle
//to avoid double save of undo
int lastPick = -1;
if (selectedIndex >= 0)
{
lastPick = selectedIndex;
}
unpick(); //undo any selection
//see if one is being selected
for (int i = 0; i < drawings.Count; i++)
{
VisRectangle v = (VisRectangle)drawings[i];
if (v.contains(x, y)) //did click inside a rectangle
{
selectedIndex = i; //save it
rectSelected = true;
if (selectedIndex != lastPick) //but don't save twice
{
caretakr.rememberPosition(v);
}
v.setSelected(true); //turn on handles
repaint(); //and redraw
}
}
}
//-----
public void reDraw(Graphics g)
{
for (int i = 0; i < drawings.Count; i++)
{
VisRectangle v = (VisRectangle)drawings[i];
v.draw(g);
}
}
//------
public Memento(VisRectangle vrect)
{
visRect = vrect;
rect = visRect.rects;
x = rect.x;
y = rect.y;
w = rect.w;
h = rect.h;
}
//-----
public void unpick()
{
if (rectSelected && (selectedIndex >= 0) && (selectedIndex < drawings.Count))
{
VisRectangle vis = (VisRectangle)drawings[selectedIndex];
vis.setSelected(false);
selectedIndex = -1;
rectSelected = false;
canvas.Refresh();
}
}
//-----
public void drag(int x, int y)
{
if (rectSelected)
{
VisRectangle v = (VisRectangle)drawings[selectedIndex];
if (v.contains(x, y))
{
v.move(x, y);
repaint();
}
}
}
//-----
public void createRect(int x, int y)
{
unpick(); //make sure no rectangle is selected
if (startRect) //if rect button is depressed
{
int count = drawings.Count;
caretakr.Add(count); //Save previous drawing list size
VisRectangle v = new VisRectangle(x, y); //create a rectangle
drawings.Add(v); //add new element to list
startRect = false; //done with this rectangle
rect.setSelected(false); //unclick button
canvas.Refresh();
}
else
{
pickRect(x, y); //if not pressed look for rect to select
}
}
public void rememberPosition(VisRectangle vr)
{
mem = new Memento(vr);
undoList.Add(mem);
}