public override DrawObject Clone()
{
DrawRectangle drawRectangle = new DrawRectangle();
drawRectangle.rectangle = rectangle;
FillDrawObjectFields(drawRectangle);
return(drawRectangle);
}
public override void Draw(Graphics g)
{
Pen pen;
GraphicsPath gp = new GraphicsPath();
Brush b = new SolidBrush(FillColor);
Brush b1 = new LinearGradientBrush(new Point(0, 10), new Point(200, 10), Color.FromArgb(255, 255, 0, 0), Color.FromArgb(255, 0, 0, 255));
Brush b2 = new HatchBrush(HatchStyle.Cross, Color.Azure);
Brush b3 = new TextureBrush(FillImage);
if (DrawPen == null)
{
pen = new Pen(Color, PenWidth);
}
else
{
pen = (Pen)DrawPen.Clone();
}
Rectangle rect = DrawRectangle.GetNormalizedRectangle(Rectangle);
if (ShapeName == SpecialShape.ShapeName.Triangle)
{
PointF[] ListPoint =
{
new PointF(rect.X + rect.Width / 2, rect.Y),
new PointF(rect.X + rect.Width, rect.Y + rect.Height),
new PointF(rect.X, rect.Y + rect.Height),
new PointF(rect.X + rect.Width / 2, rect.Y)
};
gp.AddLines(ListPoint);
}
else if (ShapeName == SpecialShape.ShapeName.RightTriangle)
{
PointF[] ListPoint =
{
new PointF(rect.X, rect.Y),
new PointF(rect.X + rect.Width, rect.Y + rect.Height),
new PointF(rect.X, rect.Y + rect.Height),
new PointF(rect.X, rect.Y)
};
gp.AddLines(ListPoint);
}
else if (ShapeName == SpecialShape.ShapeName.RoundedRectangle)
{
int rad = 60;
gp.AddArc(rect.X, rect.Y, rad, rad, 180, 90);
gp.AddArc(rect.X + rect.Width - rad, rect.Y, rad, rad, 270, 90);
gp.AddArc(rect.X + rect.Width - rad, rect.Y + rect.Height - rad, rad, rad, 0, 90);
gp.AddArc(rect.X, rect.Y + rect.Height - rad, rad, rad, 90, 90);
gp.AddLine(rect.X, rect.Y + rect.Height - rad, rect.X, rect.Y + rad / 2);
}
else if (ShapeName == SpecialShape.ShapeName.Arrow)
{
PointF[] ListPoint =
{
new PointF(rect.X + rect.Width / 2, rect.Y),
new PointF(rect.X + rect.Width, rect.Y + rect.Height / 2),
new PointF(rect.X + rect.Width / 2, rect.Y + rect.Height),
new PointF(rect.X + rect.Width / 2, rect.Y + rect.Height * 3 / 4),
new PointF(rect.X, rect.Y + rect.Height * 3 / 4),
new PointF(rect.X, rect.Y + rect.Height / 4),
new PointF(rect.X + rect.Width / 2, rect.Y + rect.Height / 4),
new PointF(rect.X + rect.Width / 2, rect.Y)
};
gp.AddLines(ListPoint);
}
else if (ShapeName == SpecialShape.ShapeName.Star)
{
PointF[] ListPoint =
{
new PointF(rect.X + rect.Width / 2, rect.Y),
new PointF(rect.X + rect.Width * 6 / 10, rect.Y + rect.Height * 4 / 10),
new PointF(rect.X + rect.Width, rect.Y + rect.Height * 4 / 10),
new PointF(rect.X + rect.Width * 65 / 100, rect.Y + rect.Height * 65 / 100),
new PointF(rect.X + rect.Width * 3 / 4, rect.Y + rect.Height),
new PointF(rect.X + rect.Width / 2, rect.Y + rect.Height * 78 / 100),
new PointF(rect.X + rect.Width / 4, rect.Y + rect.Height),
new PointF(rect.X + rect.Width * 35 / 100, rect.Y + rect.Height * 65 / 100),
new PointF(rect.X, rect.Y + rect.Height * 4 / 10),
new PointF(rect.X + rect.Width * 4 / 10, rect.Y + rect.Height * 4 / 10),
new PointF(rect.X + rect.Width / 2, rect.Y)
};
gp.AddLines(ListPoint);
}
if (Rotation != 0)
{
RectangleF pathBounds = gp.GetBounds();
Matrix m = new Matrix();
m.RotateAt(Rotation, new PointF(pathBounds.Left + (pathBounds.Width / 2), pathBounds.Top + (pathBounds.Height / 2)), MatrixOrder.Append);
gp.Transform(m);
}
g.DrawPath(pen, gp);
if (Filled)
{
g.FillPath(b, gp);
}
if (Gradient)
{
g.FillPath(b1, gp);
}
if (Hatch)
{
g.FillPath(b2, gp);
}
if (Texture)
{
g.FillPath(b3, gp);
}
gp.Dispose();
pen.Dispose();
b.Dispose();
b1.Dispose();
b2.Dispose();
b3.Dispose();
}
/* --- Phương thức --- */
public override void OnMouseDown(DrawArea drawArea, MouseEventArgs e)
{
commandChangeState = null;
wasMove = false;
selectMode = SelectionMode.None;
Point point = drawArea.BackTrackMouse(new Point(e.X, e.Y));
// Kiểm tra có phải là đang resize
int al = drawArea.TheLayers.ActiveLayerIndex;
int n = drawArea.TheLayers[al].Graphics.SelectionCount;
for (int i = 0; i < n; i++)
{
DrawObject o = drawArea.TheLayers[al].Graphics.GetSelectedObject(i);
int handleNumber = o.HitTest(point);
if (handleNumber > 0)
{
selectMode = SelectionMode.Size;
// Giữ đối tượng cần resize
resizedObject = o;
resizedObjectHandle = handleNumber;
// Khi resize một đối tượng phải unselect các đối tượng khác
drawArea.TheLayers[al].Graphics.UnselectAll();
o.Selected = true;
commandChangeState = new CommandChangeState(drawArea.TheLayers);
break;
}
}
// Kiểm tra có phải là đang move
if (selectMode == SelectionMode.None)
{
int n1 = drawArea.TheLayers[al].Graphics.Count;
DrawObject o = null;
for (int i = 0; i < n1; i++)
{
if (drawArea.TheLayers[al].Graphics[i].HitTest(point) == 0)
{
o = drawArea.TheLayers[al].Graphics[i];
break;
}
}
if (o != null)
{
selectMode = SelectionMode.Move;
// Unselect tất cả nếu Ctrl chưa nhấn và một đối tượng chưa được chọn
if ((Control.ModifierKeys & Keys.Control) == 0 &&
!o.Selected)
{
drawArea.TheLayers[al].Graphics.UnselectAll();
}
o.Selected = true;
commandChangeState = new CommandChangeState(drawArea.TheLayers);
drawArea.Cursor = Cursors.SizeAll;
}
}
// Kiểm tra có phải là đang group selection
if (selectMode == SelectionMode.None)
{
if ((Control.ModifierKeys & Keys.Control) == 0)
{
drawArea.TheLayers[al].Graphics.UnselectAll();
}
selectMode = SelectionMode.NetSelection;
drawArea.DrawNetRectangle = true;
}
lastPoint.X = point.X;
lastPoint.Y = point.Y;
startPoint.X = point.X;
startPoint.Y = point.Y;
drawArea.Capture = true;
drawArea.NetRectangle = DrawRectangle.GetNormalizedRectangle(startPoint, lastPoint);
drawArea.Refresh();
}
public override void Normalize()
{
rectangle = DrawRectangle.GetNormalizedRectangle(rectangle);
}
public override void OnMouseMove(DrawArea drawArea, MouseEventArgs e)
{
Point point = drawArea.BackTrackMouse(new Point(e.X, e.Y));
int al = drawArea.TheLayers.ActiveLayerIndex;
wasMove = true;
// Set con trỏ khi chưa nhấn chuột
if (e.Button == MouseButtons.None)
{
Cursor cursor = null;
if (drawArea.TheLayers[al].Graphics != null)
{
for (int i = 0; i < drawArea.TheLayers[al].Graphics.Count; i++)
{
int n = drawArea.TheLayers[al].Graphics[i].HitTest(point);
if (n > 0)
{
cursor = drawArea.TheLayers[al].Graphics[i].GetHandleCursor(n);
break;
}
}
}
if (cursor == null)
{
cursor = Cursors.Default;
}
drawArea.Cursor = cursor;
return;
}
if (e.Button != MouseButtons.Left)
{
return;
}
// Khi nhấn trái chuột
// Tìm khoảng cách giữa hai điểm trước và sau
int dx = point.X - lastPoint.X;
int dy = point.Y - lastPoint.Y;
lastPoint.X = point.X;
lastPoint.Y = point.Y;
// Resize
if (selectMode == SelectionMode.Size)
{
if (resizedObject != null)
{
resizedObject.MoveHandleTo(point, resizedObjectHandle);
drawArea.Refresh();
}
}
// Move
if (selectMode == SelectionMode.Move)
{
int n = drawArea.TheLayers[al].Graphics.SelectionCount;
for (int i = 0; i < n; i++)
{
drawArea.TheLayers[al].Graphics.GetSelectedObject(i).Move(dx, dy);
}
drawArea.Cursor = Cursors.SizeAll;
drawArea.Refresh();
}
// Group selection
if (selectMode == SelectionMode.NetSelection)
{
drawArea.NetRectangle = DrawRectangle.GetNormalizedRectangle(startPoint, lastPoint);
drawArea.Refresh();
return;
}
}