| using System.Drawing; |
| using System.Windows.Forms; |
|
|
| namespace WeifenLuo.WinFormsUI.Docking |
| { |
| partial class DockPane |
| { |
| internal class DefaultSplitterControl : SplitterControlBase |
| { |
| public DefaultSplitterControl(DockPane pane) : base(pane) |
| { |
| } |
|
|
| protected override void OnPaint(PaintEventArgs e) |
| { |
| base.OnPaint(e); |
|
|
| if (DockPane.DockState != DockState.Document) |
| return; |
|
|
| Graphics g = e.Graphics; |
| Rectangle rect = ClientRectangle; |
| if (Alignment == DockAlignment.Top || Alignment == DockAlignment.Bottom) |
| g.DrawLine(SystemPens.ControlDark, rect.Left, rect.Bottom - 1, rect.Right, rect.Bottom - 1); |
| else if (Alignment == DockAlignment.Left || Alignment == DockAlignment.Right) |
| g.DrawLine(SystemPens.ControlDarkDark, rect.Right - 1, rect.Top, rect.Right - 1, rect.Bottom); |
| } |
| } |
|
|
| public class SplitterControlBase : Control, ISplitterDragSource |
| { |
| DockPane m_pane; |
|
|
| public SplitterControlBase(DockPane pane) |
| { |
| SetStyle(ControlStyles.Selectable, false); |
| m_pane = pane; |
| } |
|
|
| public DockPane DockPane |
| { |
| get { return m_pane; } |
| } |
|
|
| private DockAlignment m_alignment; |
| public DockAlignment Alignment |
| { |
| get { return m_alignment; } |
| set |
| { |
| m_alignment = value; |
| if (m_alignment == DockAlignment.Left || m_alignment == DockAlignment.Right) |
| Cursor = Cursors.VSplit; |
| else if (m_alignment == DockAlignment.Top || m_alignment == DockAlignment.Bottom) |
| Cursor = Cursors.HSplit; |
| else |
| Cursor = Cursors.Default; |
|
|
| if (DockPane.DockState == DockState.Document) |
| Invalidate(); |
| } |
| } |
|
|
| protected override void OnMouseDown(MouseEventArgs e) |
| { |
| base.OnMouseDown(e); |
|
|
| if (e.Button != MouseButtons.Left) |
| return; |
|
|
| DockPane.DockPanel.BeginDrag(this, Parent.RectangleToScreen(Bounds)); |
| } |
|
|
| #region ISplitterDragSource Members |
|
|
| void ISplitterDragSource.BeginDrag(Rectangle rectSplitter) |
| { |
| } |
|
|
| void ISplitterDragSource.EndDrag() |
| { |
| } |
|
|
| bool ISplitterDragSource.IsVertical |
| { |
| get |
| { |
| NestedDockingStatus status = DockPane.NestedDockingStatus; |
| return (status.DisplayingAlignment == DockAlignment.Left || |
| status.DisplayingAlignment == DockAlignment.Right); |
| } |
| } |
|
|
| Rectangle ISplitterDragSource.DragLimitBounds |
| { |
| get |
| { |
| NestedDockingStatus status = DockPane.NestedDockingStatus; |
| Rectangle rectLimit = Parent.RectangleToScreen(status.LogicalBounds); |
| if (((ISplitterDragSource)this).IsVertical) |
| { |
| rectLimit.X += MeasurePane.MinSize; |
| rectLimit.Width -= 2 * MeasurePane.MinSize; |
| } |
| else |
| { |
| rectLimit.Y += MeasurePane.MinSize; |
| rectLimit.Height -= 2 * MeasurePane.MinSize; |
| } |
|
|
| return rectLimit; |
| } |
| } |
|
|
| void ISplitterDragSource.MoveSplitter(int offset) |
| { |
| NestedDockingStatus status = DockPane.NestedDockingStatus; |
| double proportion = status.Proportion; |
| if (status.LogicalBounds.Width <= 0 || status.LogicalBounds.Height <= 0) |
| return; |
| else if (status.DisplayingAlignment == DockAlignment.Left) |
| proportion += ((double)offset) / (double)status.LogicalBounds.Width; |
| else if (status.DisplayingAlignment == DockAlignment.Right) |
| proportion -= ((double)offset) / (double)status.LogicalBounds.Width; |
| else if (status.DisplayingAlignment == DockAlignment.Top) |
| proportion += ((double)offset) / (double)status.LogicalBounds.Height; |
| else |
| proportion -= ((double)offset) / (double)status.LogicalBounds.Height; |
|
|
| DockPane.SetNestedDockingProportion(proportion); |
| } |
|
|
| #region IDragSource Members |
|
|
| Control IDragSource.DragControl |
| { |
| get { return this; } |
| } |
|
|
| #endregion |
|
|
| #endregion |
| } |
| |
| private SplitterControlBase m_splitter; |
| private SplitterControlBase Splitter |
| { |
| get { return m_splitter; } |
| } |
|
|
| internal Rectangle SplitterBounds |
| { |
| set { Splitter.Bounds = value; } |
| } |
|
|
| internal DockAlignment SplitterAlignment |
| { |
| set { Splitter.Alignment = value; } |
| } |
| } |
| } |
