/// <summary>
/// 左键点击绘制区时调用
/// 激活指定绘图对象
/// </summary>
/// <param name="regionForm"></param>
/// <param name="o"></param>
protected void ChangeObject(RegionForm regionForm, DrawRectangle o)
{
regionForm.DrawRectangle = o;
regionForm.Capture = true;
regionForm.Refresh();
}
/// <summary>
/// ������������ʱ����
/// ����ָ����ͼ����
/// </summary>
/// <param name="regionForm"></param>
/// <param name="o"></param>
protected void ChangeObject(RegionForm regionForm, DrawRectangle o)
{
regionForm.DrawRectangle = o;
regionForm.Capture = true;
regionForm.Refresh();
}
/// <summary>
/// 绘制矩形
/// </summary>
/// <param name="g"></param>
public virtual void Draw(Graphics g)
{
Pen pen = new Pen(Color.Black);
g.DrawRectangle(pen, DrawRectangle.GetNormalizedRectangle(Rectangle));
DrawTracker(g);
pen.Dispose();
}
/// <summary>
/// 释放鼠标右键
/// </summary>
/// <param name="regionForm"></param>
/// <param name="e"></param>
public override void OnMouseUp(RegionForm regionForm, MouseEventArgs e)
{
if (resizedObject != null)
{
// after resizing
resizedObject.Normalize();
resizedObject = null;
}
regionForm.Capture = false;
regionForm.Refresh();
}
/// <summary>
/// 按下鼠标左键
/// </summary>
/// <param name="regionForm"></param>
/// <param name="e"></param>
public override void OnMouseDown(RegionForm regionForm, MouseEventArgs e)
{
wasMove = false;
selectMode = SelectionMode.None;
Point point = new Point(e.X, e.Y);
int handleNumber = regionForm.DrawRectangle.HitTest(point);
if (handleNumber > 0)
{
selectMode = SelectionMode.Size;
resizedObject = regionForm.DrawRectangle;
resizedObjectHandle = handleNumber;
}
if (selectMode == SelectionMode.None)
{
DrawRectangle o = null;
if (regionForm.DrawRectangle.HitTest(point) == 0)
{
o = regionForm.DrawRectangle;
}
if (o != null)
{
selectMode = SelectionMode.Move;
regionForm.Cursor = Cursors.SizeAll;
}
}
lastPoint.X = e.X;
lastPoint.Y = e.Y;
startPoint.X = e.X;
startPoint.Y = e.Y;
regionForm.Capture = true;
regionForm.Refresh();
}
/// <summary>
/// ����������
/// </summary>
/// <param name="regionForm"></param>
/// <param name="e"></param>
public override void OnMouseDown(RegionForm regionForm, MouseEventArgs e)
{
wasMove = false;
selectMode = SelectionMode.None;
Point point = new Point(e.X, e.Y);
int handleNumber = regionForm.DrawRectangle.HitTest(point);
if (handleNumber > 0)
{
selectMode = SelectionMode.Size;
resizedObject = regionForm.DrawRectangle;
resizedObjectHandle = handleNumber;
}
if (selectMode == SelectionMode.None)
{
DrawRectangle o = null;
if (regionForm.DrawRectangle.HitTest(point) == 0)
{
o = regionForm.DrawRectangle;
}
if (o != null)
{
selectMode = SelectionMode.Move;
regionForm.Cursor = Cursors.SizeAll;
}
}
lastPoint.X = e.X;
lastPoint.Y = e.Y;
startPoint.X = e.X;
startPoint.Y = e.Y;
regionForm.Capture = true;
regionForm.Refresh();
}
/// <summary>
/// �ͷ�����Ҽ�
/// </summary>
/// <param name="regionForm"></param>
/// <param name="e"></param>
public override void OnMouseUp(RegionForm regionForm, MouseEventArgs e)
{
if (resizedObject != null)
{
// after resizing
resizedObject.Normalize();
resizedObject = null;
}
regionForm.Capture = false;
regionForm.Refresh();
}
/// <summary>
/// 规格化矩形，在对象改变大小的之后调用
/// </summary>
public virtual void Normalize()
{
rectangle = DrawRectangle.GetNormalizedRectangle(rectangle);
}
