/// <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>
/// 释放鼠标左键
/// 改变绘制对象的大小
/// </summary>
/// <param name="regionForm"></param>
/// <param name="e"></param>
public override void OnMouseUp(RegionForm regionForm, MouseEventArgs e)
{
regionForm.DrawRectangle.Normalize();
// 切换成拖动模式
regionForm.ActiveTool = RegionForm.RegionToolType.Pointer;
regionForm.Capture = false;
regionForm.Refresh();
}
/// <summary>
/// �ͷ�������
/// �ı���ƶ���Ĵ�С
/// </summary>
/// <param name="regionForm"></param>
/// <param name="e"></param>
public override void OnMouseUp(RegionForm regionForm, MouseEventArgs e)
{
regionForm.DrawRectangle.Normalize();
// �л����϶�ģʽ
regionForm.ActiveTool = RegionForm.RegionToolType.Pointer;
regionForm.Capture = false;
regionForm.Refresh();
}
public override void OnMouseMove(RegionForm regionForm, MouseEventArgs e)
{
regionForm.Cursor = Cursor;
if (e.Button == MouseButtons.Left)
{
Point point = new Point(e.X, e.Y);
regionForm.DrawRectangle.MoveHandleTo(point, 5);
regionForm.Refresh();
}
}
public override void OnMouseMove(RegionForm regionForm, MouseEventArgs e)
{
regionForm.Cursor = Cursor;
if ( e.Button == MouseButtons.Left )
{
Point point = new Point(e.X, e.Y);
regionForm.DrawRectangle.MoveHandleTo(point, 5);
regionForm.Refresh();
}
}
/// <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>
/// 移动鼠标
/// 未按下任何键或者按下左键
/// </summary>
/// <param name="regionForm"></param>
/// <param name="e"></param>
public override void OnMouseMove(RegionForm regionForm, MouseEventArgs e)
{
Point point = new Point(e.X, e.Y);
Point oldPoint = lastPoint;
wasMove = true;
if (e.Button == MouseButtons.None)
{
Cursor cursor = null;
int n = regionForm.DrawRectangle.HitTest(point);
if (n > 0)
{
cursor = regionForm.DrawRectangle.GetHandleCursor(n);
}
if (cursor == null)
{
cursor = Cursors.Default;
}
regionForm.Cursor = cursor;
return;
}
if (e.Button != MouseButtons.Left)
{
return;
}
// 按下左键
// 找出上一位置和当前位置的差异
int dx = e.X - lastPoint.X;
int dy = e.Y - lastPoint.Y;
lastPoint.X = e.X;
lastPoint.Y = e.Y;
// 拖动
if (selectMode == SelectionMode.Size)
{
if (resizedObject != null)
{
resizedObject.MoveHandleTo(point, resizedObjectHandle);
regionForm.Refresh();
}
}
// 移动
if (selectMode == SelectionMode.Move)
{
regionForm.DrawRectangle.Move(dx, dy);
regionForm.Cursor = Cursors.SizeAll;
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>
/// �ƶ����
/// δ�����κμ����߰������
/// </summary>
/// <param name="regionForm"></param>
/// <param name="e"></param>
public override void OnMouseMove(RegionForm regionForm, MouseEventArgs e)
{
Point point = new Point(e.X, e.Y);
Point oldPoint = lastPoint;
wasMove = true;
if (e.Button == MouseButtons.None)
{
Cursor cursor = null;
int n = regionForm.DrawRectangle.HitTest(point);
if (n > 0)
{
cursor = regionForm.DrawRectangle.GetHandleCursor(n);
}
if (cursor == null)
{
cursor = Cursors.Default;
}
regionForm.Cursor = cursor;
return;
}
if (e.Button != MouseButtons.Left)
{
return;
}
// �������
// �ҳ���һλ�ú͵�ǰλ�õIJ���
int dx = e.X - lastPoint.X;
int dy = e.Y - lastPoint.Y;
lastPoint.X = e.X;
lastPoint.Y = e.Y;
// �϶�
if (selectMode == SelectionMode.Size)
{
if (resizedObject != null)
{
resizedObject.MoveHandleTo(point, resizedObjectHandle);
regionForm.Refresh();
}
}
// �ƶ�
if (selectMode == SelectionMode.Move)
{
regionForm.DrawRectangle.Move(dx, dy);
regionForm.Cursor = Cursors.SizeAll;
regionForm.Refresh();
}
}