/// <summary>
/// 创建一个拖拽矩形对象
/// </summary>
/// <returns>新的拖拽矩形对象</returns>
public virtual DragRectangle CreateDragRectangle()
{
DragRectangle.DragRectSize = DragBoxSize;
DragRectangle rect = new DragRectangle(
new System.Drawing.Rectangle(
(int)0,
(int)0,
(int)this.Width,
(int)this.Height),
true);
rect.CanMove = true;
rect.LineDashStyle = System.Drawing.Drawing2D.DashStyle.Solid;
rect.CanResize = this.CanResize && this.OwnerDocument.DocumentControler.CanModify(
this,
DomAccessFlags.Normal);
rect.Focus = true; // myOwnerDocument.Content.CurrentElement == this && myOwnerDocument.Content.SelectionLength == 1 ;
if (rect.CanResize)
{
if (this.OwnerDocument.Options.SecurityOptions.EnablePermission)
{
// 进行权限判断用户能否改变元素大小
if (this.Style.DeleterIndex >= 0)
{
rect.CanResize = false;
}
else if (this.CreatorPermessionLevel > this.OwnerDocument.UserHistories.CurrentPermissionLevel)
{
rect.CanResize = false;
}
}
}
return(rect);
}
/// <summary>
/// 重新绘制对象
/// </summary>
/// <param name="g">图形绘制对象</param>
/// <param name="ClipRectangle">剪切矩形</param>
public virtual void RefreshView(DomElement element, DocumentPaintEventArgs args)
{
if (element == null || element.OwnerLine == null)
{
return;
}
this.DrawBackground(element, args);
this.DrawContent(element, args);
if (args.RenderStyle == DocumentRenderStyle.Paint && args.ActiveMode)
{
if (element is DomObjectElement)
{
DomObjectElement oe = (DomObjectElement)element;
if (oe.ShowDragRect)
{
DragRectangle dr = oe.CreateDragRectangle();
dr.Bounds = new Rectangle(
(int)element.AbsLeft,
(int)element.AbsTop,
dr.Bounds.Width,
dr.Bounds.Height);
dr.RefreshView(args.Graphics);
}
}
}
}
protected override void OnMouseMove(MouseEventArgs e)
{
if (e.Button == MouseButtons.Left && !DragRectangle.IsEmpty && !DragRectangle.Contains(e.Location))
{
deferredSelection = false;
}
base.OnMouseMove(e);
}
/// <summary>
/// 处理文档用户界面事件
/// </summary>
/// <param name="args">事件参数</param>
public override void HandleDocumentEvent(DocumentEventArgs args)
{
if (args.Style == DocumentEventStyles.MouseDown)
{
if (this.Enabled)
{
if (this.OwnerDocument.EditorControl != null)
{
if (this.OwnerDocument.EditorControl.MouseDragScroll)
{
return;
}
}
DragPointStyle hit = this.GetDragHit(args.X, args.Y);
if (this.ShowDragRect)
{
if (hit >= 0)
{
DragBounds(hit);
args.CancelBubble = true;
if (this.OwnerDocument.EditorControl != null)
{
this.OwnerDocument.EditorControl.UpdateTextCaret();
}
return;
}
}
//if (this.AbsBounds.Contains(args.X, args.Y))
{
this.OwnerDocument.CurrentContentElement.SetSelection(this.ViewIndex, 1);
args.CancelBubble = true;
}
}
}
else if (args.Style == DocumentEventStyles.MouseMove)
{
if (this.Enabled)
{
if (this.ShowDragRect)
{
DragRectangle dr = this.CreateDragRectangle();
DragPointStyle hit = dr.DragHit(args.X, args.Y);
if (hit >= 0)
{
args.Cursor = DragRectangle.GetMouseCursor(hit);
base.HandleDocumentEvent(args);
return;
}
}
args.Cursor = System.Windows.Forms.Cursors.Arrow;
}
}
else
{
base.HandleDocumentEvent(args);
}
}
/// <summary>
/// 进行控制点测试
/// </summary>
/// <param name="x">测试点X坐标</param>
/// <param name="y">测试点Y坐标</param>
/// <returns>测试点所在控制点编号</returns>
protected virtual DragPointStyle GetDragHit(int x, int y)
{
DragRectangle dr = this.CreateDragRectangle();
if (dr == null)
{
return(DragPointStyle.None);
}
else
{
return(dr.DragHit(x, y));
}
}
//public override void RefreshView(DocumentPaintEventArgs args)
//{
// base.DrawBackground( args);
// this.DrawContent( args );
// if( ShowDragRect )
// {
// DragRectangle dr = this.CreateDragRectangle();
// dr.RefreshView( args.Graphics );
// }
//}
/// <summary>
/// 绘制对象
/// </summary>
/// <param name="args"></param>
public override void Draw(DocumentPaintEventArgs args)
{
args.Render.DrawBackground(this, args);
this.DrawContent(args);
if (args.RenderStyle == DocumentRenderStyle.Paint && args.ActiveMode)
{
if (this.ShowDragRect && this.Enabled)
{
DragRectangle dr = this.CreateDragRectangle();
dr.Bounds = new Rectangle(
(int)this.AbsLeft,
(int)this.AbsTop,
dr.Bounds.Width,
dr.Bounds.Height);
dr.RefreshView(args.Graphics);
}
}
System.Drawing.RectangleF bounds = this.AbsBounds;
bounds.Width = bounds.Width - 1;
bounds.Height = bounds.Height - 1;
args.Render.RenderBorder(this, args, bounds);
}
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);
}
}
}