private void panel1_MouseUp(object sender, MouseEventArgs e)
{
if (rb_group.Checked)
{
List <Graphic_Object> elements = Helper.findElementsInGroupPanel(obj, drawnObjs);
foreach (Graphic_Object g in elements)
{
obj.groupedElements.Add(g);
//g.IsGrouped = true;
g.color = Color.DarkGray;
drawnObjs.Remove(g);
}
}
obj = null;
foreach (Graphic_Object obj in drawnObjs)
{
obj.drawShape(g);
if (obj.IsGrouped)
{
foreach (Graphic_Object j in obj.groupedElements)
{
j.drawShape(g);
}
}
}
}
public static bool isPointWithinLine(Point p, Graphic_Object obj)
{
try
{
bool status = (p.X - obj.X) / (obj.Width) == (p.Y - obj.Y) / (obj.Height);
return(status);
}
catch (Exception e) {
return(false);
}
}
public static List <Graphic_Object> findElementsInGroupPanel(Graphic_Object obj, List <Graphic_Object> mylist)
{
List <Graphic_Object> foundlist = new List <Graphic_Object>();
foreach (Graphic_Object g in mylist)
{
if (g.X > obj.X && g.Y > obj.Y && g.X < (obj.X + obj.Width) && g.Y < (obj.Y + obj.Height))
{
foundlist.Add(g);
}
}
return(foundlist);
}
public static bool isPointWithinRect(Point g, Graphic_Object obj)
{
bool status = (g.X > obj.X && g.Y > obj.Y && g.X < (obj.X + obj.Width) && g.Y < (obj.Y + obj.Height));
return(status);
}
private void panel1_MouseDown(object sender, MouseEventArgs e)
{
if (rb_oval.Checked)
{
obj = new Graphic_Object();
obj.X = e.X;
obj.Y = e.Y;
obj.Shape = Helper.ShapeType.Oval;
drawnObjs.Add(obj);
}
else if (rb_line.Checked)
{
obj = new Graphic_Object();
obj.X = e.X;
obj.Y = e.Y;
obj.Shape = Helper.ShapeType.Line;
drawnObjs.Add(obj);
}
else if (rb_fill.Checked)
{
obj = new Graphic_Object();
obj.X = e.X;
obj.Y = e.Y;
obj.Shape = Helper.ShapeType.Oval;
obj.IsFill = true;
drawnObjs.Add(obj);
}
else if (rb_move.Checked)
{
if (drawnObjs.Count != 0)
{
bool isObjectFound = false;
Graphic_Object foundedObj = null;
// search for the drawable object near to the clikced point
foreach (Graphic_Object o in drawnObjs)
{
if (o.Shape == Helper.ShapeType.Oval)
{
isObjectFound = Helper.isPointInTheElipse(new Rectangle(o.X, o.Y, o.Width, o.Height), new Point(e.X, e.Y));
}
else if (o.Shape == Helper.ShapeType.Line)
{
isObjectFound = Helper.isPointWithinLine(new Point(e.X, e.Y), o);
}
else if (o.Shape == Helper.ShapeType.Rectangle)
{
isObjectFound = Helper.isPointWithinRect(new Point(e.X, e.Y), o);
}
if (isObjectFound)
{
foundedObj = o;
}
}
// get the starting point of the object
if (foundedObj != null)
{
obj = foundedObj;
m_started = new Point(e.X - obj.X, e.Y - obj.Y);
}
}
}
else if (rb_remove.Checked)
{
if (drawnObjs.Count != 0)
{
bool isObjectFound = false;
// search for the nearest object
foreach (Graphic_Object o in drawnObjs)
{
if (o.Shape == Helper.ShapeType.Oval)
{
isObjectFound = Helper.isPointInTheElipse(new Rectangle(o.X, o.Y, o.Width, o.Height), new Point(e.X, e.Y));
}
else if (o.Shape == Helper.ShapeType.Line)
{
isObjectFound = Helper.isPointWithinLine(new Point(e.X, e.Y), o);
}
else if (o.Shape == Helper.ShapeType.Rectangle)
{
isObjectFound = Helper.isPointWithinRect(new Point(e.X, e.Y), o);
}
// remove the found object and redraw the form
if (isObjectFound)
{
obj = o;
drawnObjs.Remove(o);
g.Clear(Color.WhiteSmoke);
foreach (Graphic_Object obj in drawnObjs)
{
obj.drawShape(g);
if (obj.IsGrouped)
{
foreach (Graphic_Object j in obj.groupedElements)
{
j.drawShape(g);
}
}
}
break;
}
}
}
}
else if (rb_group.Checked)
{
// check the components inside the selected area
obj = new Graphic_Object();
obj.X = e.X;
obj.Y = e.Y;
obj.Shape = Helper.ShapeType.Rectangle;
obj.color = Color.DarkGray;
obj.IsGrouped = true;
drawnObjs.Add(obj);
}
}