//protected bool bolEnableDragMove = true;
///// <summary>
///// 是否允许鼠标拖拽移动图片
///// </summary>
//public bool EnableDragMode
//{
// get
// {
// return bolEnableDragMove ;
// }
// set
// {
// bolEnableDragMove = value;
// if( value == false )
// myDragPoint = null;
// }
//}
private ReversibleDrawer CreateReversibleDrawer()
{
ReversibleDrawer drawer = ReversibleDrawer.FromHwnd(this.Handle);
drawer.PenColor = Color.White;
drawer.PenStyle = PenStyle.PS_SOLID;
drawer.LineWidth = 1;
return(drawer);
}
protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
{
if (myImage != null)
{
System.Drawing.Point sp = this.AutoScrollPosition;
System.Drawing.Rectangle rect = this.ImageBounds;
System.Drawing.Point ip = rect.Location;
System.Drawing.Rectangle ClipRect = e.ClipRectangle;
ClipRect.Offset(0 - sp.X, 0 - sp.Y);
rect = System.Drawing.Rectangle.Intersect(ClipRect, rect);
if (rect.Width > 0 || rect.Height > 0)
{
e.Graphics.DrawImage(myImage,
new System.Drawing.Rectangle
(rect.Left + sp.X,
rect.Top + sp.Y,
rect.Width,
rect.Height),
new System.Drawing.Rectangle(rect.Left - ip.X, rect.Top - ip.Y, rect.Width, rect.Height),
System.Drawing.GraphicsUnit.Pixel);
// rect = this.ImageBounds ;
// rect.Offset( - sp.X , - sp.Y );
// if( this.Focused )
// System.Windows.Forms.ControlPaint.DrawFocusRectangle( e.Graphics , rect );
}
//string strText = "宽:" + myImage.Size.Width + " 高:" + myImage.Size.Height + " 格式:" + myImage.PixelFormat ;
}
if (this.BehaviorStyle == XPictureBoxBehaviorStyle.DragSelect)
{
using (ReversibleDrawer drawer = new ReversibleDrawer(e.Graphics))
{
drawer.PenColor = Color.White;
drawer.PenStyle = PenStyle.PS_SOLID;
drawer.LineWidth = 1;
Rectangle rect2 = this.SelectionBounds;
if (rect2.IsEmpty == false)
{
rect2.Offset(this.AutoScrollPosition.X, this.AutoScrollPosition.Y);
rect2.Offset(this.ImageBounds.Location);
drawer.DrawRectangle(rect2);
}
if (myLastPoint != null)
{
drawer.DrawLine(0, myLastPoint.Y, this.ClientSize.Width, myLastPoint.Y);
drawer.DrawLine(myLastPoint.X, 0, myLastPoint.X, this.ClientSize.Height);
myLastPoint = null;
}
}
}
base.OnPaint(e);
}
protected override void OnMouseLeave(EventArgs e)
{
if (myLastPoint != null)
{
using (ReversibleDrawer drawer = this.CreateReversibleDrawer())
{
drawer.DrawLine(0, myLastPoint.Y, this.ClientSize.Width, myLastPoint.Y);
drawer.DrawLine(myLastPoint.X, 0, myLastPoint.X, this.ClientSize.Height);
myLastPoint = null;
}
}
base.OnMouseLeave(e);
}
/// <summary>
/// 使用视图坐标绘制一个可逆矩形边框
/// </summary>
/// <param name="left">矩形的左端位置</param>
/// <param name="top">矩形的顶端位置</param>
/// <param name="width">矩形的宽度</param>
/// <param name="height">矩形的高度</param>
public void ReversibleViewDrawRect(
int left,
int top,
int width,
int height)
{
//throw new NotImplementedException("documentviewcontrol:ReversibleViewDrawRect");
using (ReversibleDrawer drawer
= ReversibleDrawer.FromHwnd(this.Handle))
{
drawer.PenStyle = PenStyle.PS_DOT;
drawer.PenColor = System.Drawing.Color.Red;
this.RefreshScaleTransform();
System.Drawing.Rectangle rect
= this.myTransform.UnTransformRectangle(left, top, width, height);
drawer.DrawRectangle(rect);
}
}
private void cap_Draw(object sender, CaptureMouseMoveEventArgs e)
{
DragPointStyle hit = (DragPointStyle)e.Sender.Tag;
System.Drawing.Rectangle rect = Rectangle.Ceiling(this.AbsBounds);
System.Drawing.Point p1 = e.StartPosition;
System.Drawing.Point p2 = e.CurrentPosition;
SimpleRectangleTransform trans = this.OwnerDocument.EditorControl.GetTransformItemByDescPoint(rect.Left, rect.Top);
if (trans != null)
{
p1 = trans.TransformPoint(p1);
p2 = trans.TransformPoint(p2);
rect = DragRectangle.CalcuteDragRectangle(
(int)(p2.X - p1.X),
(int)(p2.Y - p1.Y),
hit,
Rectangle.Ceiling(this.AbsBounds));
if (rect.Width > (int)this.OwnerDocument.Width)
{
rect.Width = (int)this.OwnerDocument.Width;
}
if (this.WidthHeightRate > 0.1)
{
rect.Height = (int)(rect.Width / this.WidthHeightRate);
}
LastDragBounds = rect;
rect = trans.UnTransformRectangle(rect);
using (ReversibleDrawer drawer =
ReversibleDrawer.FromHwnd(this.OwnerDocument.EditorControl.Handle))
{
drawer.PenStyle = PenStyle.PS_DOT;
drawer.PenColor = System.Drawing.Color.Red;
drawer.DrawRectangle(rect);
}
}
}
protected override void OnMouseMove(System.Windows.Forms.MouseEventArgs e)
{
if (this.BehaviorStyle == XPictureBoxBehaviorStyle.DragScroll)
{
if (myDragPoint != null)
{
System.Drawing.Point p = new System.Drawing.Point(
0 - this.AutoScrollPosition.X,
0 - this.AutoScrollPosition.Y);
p.Offset(-e.X + myDragPoint.X, -e.Y + myDragPoint.Y);
myDragPoint.X = e.X;
myDragPoint.Y = e.Y;
this.AutoScrollPosition = p;
}
else
{
if (myImage != null)
{
int x = e.X - this.AutoScrollPosition.X;
int y = e.Y - this.AutoScrollPosition.Y;
if (myImage.Size.Width > this.ClientSize.Width || myImage.Size.Height > this.ClientSize.Height)
{
if (this.ImageBounds.Contains(x, y))
{
this.Cursor = System.Windows.Forms.Cursors.SizeAll;
}
else
{
this.Cursor = System.Windows.Forms.Cursors.Default;
}
}
else
{
this.Cursor = System.Windows.Forms.Cursors.Default;
}
}
}
}
else if (this.BehaviorStyle == XPictureBoxBehaviorStyle.DragSelect)
{
using (ReversibleDrawer drawer = this.CreateReversibleDrawer())
{
if (myLastPoint != null)
{
drawer.DrawLine(0, myLastPoint.Y, this.ClientSize.Width, myLastPoint.Y);
drawer.DrawLine(myLastPoint.X, 0, myLastPoint.X, this.ClientSize.Height);
}
else
{
myLastPoint = new myPointClass();
}
if (this.ImageBounds.Contains(e.X, e.Y))
{
myLastPoint.X = e.X;
myLastPoint.Y = e.Y;
drawer.DrawLine(0, myLastPoint.Y, this.ClientSize.Width, myLastPoint.Y);
drawer.DrawLine(myLastPoint.X, 0, myLastPoint.X, this.ClientSize.Height);
}
else
{
myLastPoint = null;
}
}
}
base.OnMouseMove(e);
}
