| 1 | using System;
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| 2 | using System.Collections;
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| 3 | using System.Drawing;
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| 4 | using System.Windows.Forms;
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| 5 | using System.Runtime.InteropServices;
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| 6 | using System.Security.Permissions;
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| 7 | using System.Diagnostics.CodeAnalysis;
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| 8 |
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| 9 | namespace WeifenLuo.WinFormsUI.Docking
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| 10 | {
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| 11 | public class FloatWindow : Form, INestedPanesContainer, IDockDragSource
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| 12 | {
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| 13 | private NestedPaneCollection m_nestedPanes;
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| 14 | internal const int WM_CHECKDISPOSE = (int)(Win32.Msgs.WM_USER + 1);
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| 15 |
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| 16 | internal protected FloatWindow(DockPanel dockPanel, DockPane pane)
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| 17 | {
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| 18 | InternalConstruct(dockPanel, pane, false, Rectangle.Empty);
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| 19 | }
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| 20 |
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| 21 | internal protected FloatWindow(DockPanel dockPanel, DockPane pane, Rectangle bounds)
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| 22 | {
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| 23 | InternalConstruct(dockPanel, pane, true, bounds);
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| 24 | }
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| 25 |
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| 26 | private void InternalConstruct(DockPanel dockPanel, DockPane pane, bool boundsSpecified, Rectangle bounds)
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| 27 | {
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| 28 | if (dockPanel == null)
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| 29 | throw(new ArgumentNullException(Strings.FloatWindow_Constructor_NullDockPanel));
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| 30 |
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| 31 | m_nestedPanes = new NestedPaneCollection(this);
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| 32 |
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| 33 | FormBorderStyle = FormBorderStyle.SizableToolWindow;
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| 34 | ShowInTaskbar = false;
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| 35 | if (dockPanel.RightToLeft != RightToLeft)
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| 36 | RightToLeft = dockPanel.RightToLeft;
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| 37 | if (RightToLeftLayout != dockPanel.RightToLeftLayout)
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| 38 | RightToLeftLayout = dockPanel.RightToLeftLayout;
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| 39 |
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| 40 | SuspendLayout();
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| 41 | if (boundsSpecified)
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| 42 | {
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| 43 | Bounds = bounds;
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| 44 | StartPosition = FormStartPosition.Manual;
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| 45 | }
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| 46 | else
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| 47 | {
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| 48 | StartPosition = FormStartPosition.WindowsDefaultLocation;
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| 49 | Size = dockPanel.DefaultFloatWindowSize;
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| 50 | }
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| 51 |
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| 52 | m_dockPanel = dockPanel;
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| 53 | Owner = DockPanel.FindForm();
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| 54 | DockPanel.AddFloatWindow(this);
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| 55 | if (pane != null)
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| 56 | pane.FloatWindow = this;
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| 57 |
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| 58 | ResumeLayout();
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| 59 | }
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| 60 |
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| 61 | protected override void Dispose(bool disposing)
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| 62 | {
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| 63 | if (disposing)
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| 64 | {
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| 65 | if (DockPanel != null)
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| 66 | DockPanel.RemoveFloatWindow(this);
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| 67 | m_dockPanel = null;
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| 68 | }
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| 69 | base.Dispose(disposing);
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| 70 | }
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| 71 |
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| 72 | private bool m_allowEndUserDocking = true;
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| 73 | public bool AllowEndUserDocking
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| 74 | {
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| 75 | get { return m_allowEndUserDocking; }
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| 76 | set { m_allowEndUserDocking = value; }
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| 77 | }
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| 78 |
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| 79 | public NestedPaneCollection NestedPanes
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| 80 | {
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| 81 | get { return m_nestedPanes; }
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| 82 | }
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| 83 |
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| 84 | public VisibleNestedPaneCollection VisibleNestedPanes
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| 85 | {
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| 86 | get { return NestedPanes.VisibleNestedPanes; }
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| 87 | }
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| 88 |
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| 89 | private DockPanel m_dockPanel;
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| 90 | public DockPanel DockPanel
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| 91 | {
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| 92 | get { return m_dockPanel; }
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| 93 | }
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| 94 |
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| 95 | public DockState DockState
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| 96 | {
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| 97 | get { return DockState.Float; }
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| 98 | }
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| 99 |
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| 100 | public bool IsFloat
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| 101 | {
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| 102 | get { return DockState == DockState.Float; }
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| 103 | }
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| 104 |
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| 105 | internal bool IsDockStateValid(DockState dockState)
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| 106 | {
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| 107 | foreach (DockPane pane in NestedPanes)
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| 108 | foreach (IDockContent content in pane.Contents)
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| 109 | if (!DockHelper.IsDockStateValid(dockState, content.DockHandler.DockAreas))
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| 110 | return false;
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| 111 |
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| 112 | return true;
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| 113 | }
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| 114 |
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| 115 | protected override void OnActivated(EventArgs e)
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| 116 | {
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| 117 | DockPanel.FloatWindows.BringWindowToFront(this);
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| 118 | base.OnActivated (e);
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| 119 | // Propagate the Activated event to the visible panes content objects
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| 120 | foreach (DockPane pane in VisibleNestedPanes)
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| 121 | foreach (IDockContent content in pane.Contents)
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| 122 | content.OnActivated(e);
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| 123 | }
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| 124 |
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| 125 | protected override void OnDeactivate(EventArgs e)
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| 126 | {
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| 127 | base.OnDeactivate(e);
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| 128 | // Propagate the Deactivate event to the visible panes content objects
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| 129 | foreach (DockPane pane in VisibleNestedPanes)
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| 130 | foreach (IDockContent content in pane.Contents)
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| 131 | content.OnDeactivate(e);
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| 132 | }
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| 133 |
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| 134 | protected override void OnLayout(LayoutEventArgs levent)
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| 135 | {
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| 136 | VisibleNestedPanes.Refresh();
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| 137 | RefreshChanges();
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| 138 | Visible = (VisibleNestedPanes.Count > 0);
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| 139 | SetText();
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| 140 |
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| 141 | base.OnLayout(levent);
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| 142 | }
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| 143 |
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| 144 |
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| 145 | [SuppressMessage("Microsoft.Globalization", "CA1303:DoNotPassLiteralsAsLocalizedParameters", MessageId = "System.Windows.Forms.Control.set_Text(System.String)")]
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| 146 | internal void SetText()
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| 147 | {
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| 148 | DockPane theOnlyPane = (VisibleNestedPanes.Count == 1) ? VisibleNestedPanes[0] : null;
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| 149 |
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| 150 | if (theOnlyPane == null)
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| 151 | Text = " "; // use " " instead of string.Empty because the whole title bar will disappear when ControlBox is set to false.
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| 152 | else if (theOnlyPane.ActiveContent == null)
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| 153 | Text = " ";
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| 154 | else
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| 155 | Text = theOnlyPane.ActiveContent.DockHandler.TabText;
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| 156 | }
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| 157 |
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| 158 | protected override void SetBoundsCore(int x, int y, int width, int height, BoundsSpecified specified)
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| 159 | {
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| 160 | Rectangle rectWorkArea = SystemInformation.VirtualScreen;
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| 161 |
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| 162 | if (y + height > rectWorkArea.Bottom)
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| 163 | y -= (y + height) - rectWorkArea.Bottom;
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| 164 |
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| 165 | if (y < rectWorkArea.Top)
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| 166 | y += rectWorkArea.Top - y;
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| 167 |
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| 168 | base.SetBoundsCore (x, y, width, height, specified);
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| 169 | }
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| 170 |
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| 171 | [SecurityPermission(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)]
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| 172 | protected override void WndProc(ref Message m)
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| 173 | {
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| 174 | if (m.Msg == (int)Win32.Msgs.WM_NCLBUTTONDOWN)
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| 175 | {
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| 176 | if (IsDisposed)
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| 177 | return;
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| 178 |
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| 179 | uint result = NativeMethods.SendMessage(this.Handle, (int)Win32.Msgs.WM_NCHITTEST, 0, (uint)m.LParam);
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| 180 | if (result == 2 && DockPanel.AllowEndUserDocking && this.AllowEndUserDocking) // HITTEST_CAPTION
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| 181 | {
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| 182 | Activate();
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| 183 | m_dockPanel.BeginDrag(this);
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| 184 | }
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| 185 | else
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| 186 | base.WndProc(ref m);
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| 187 |
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| 188 | return;
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| 189 | }
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| 190 | else if (m.Msg == (int)Win32.Msgs.WM_NCRBUTTONDOWN)
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| 191 | {
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| 192 | uint result = NativeMethods.SendMessage(this.Handle, (int)Win32.Msgs.WM_NCHITTEST, 0, (uint)m.LParam);
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| 193 | if (result == 2) // HITTEST_CAPTION
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| 194 | {
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| 195 | DockPane theOnlyPane = (VisibleNestedPanes.Count == 1) ? VisibleNestedPanes[0] : null;
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| 196 | if (theOnlyPane != null && theOnlyPane.ActiveContent != null)
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| 197 | {
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| 198 | theOnlyPane.ShowTabPageContextMenu(this, PointToClient(Control.MousePosition));
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| 199 | return;
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| 200 | }
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| 201 | }
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| 202 |
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| 203 | base.WndProc(ref m);
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| 204 | return;
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| 205 | }
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| 206 | else if (m.Msg == (int)Win32.Msgs.WM_CLOSE)
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| 207 | {
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| 208 | if (NestedPanes.Count == 0)
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| 209 | {
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| 210 | base.WndProc(ref m);
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| 211 | return;
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| 212 | }
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| 213 |
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| 214 | for (int i = NestedPanes.Count - 1; i >= 0; i--)
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| 215 | {
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| 216 | DockContentCollection contents = NestedPanes[i].Contents;
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| 217 | for (int j = contents.Count - 1; j >= 0; j--)
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| 218 | {
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| 219 | IDockContent content = contents[j];
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| 220 | if (content.DockHandler.DockState != DockState.Float)
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| 221 | continue;
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| 222 |
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| 223 | if (!content.DockHandler.CloseButton)
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| 224 | continue;
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| 225 |
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| 226 | if (content.DockHandler.HideOnClose)
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| 227 | content.DockHandler.Hide();
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| 228 | else
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| 229 | content.DockHandler.Close();
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| 230 | }
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| 231 | }
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| 232 |
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| 233 | return;
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| 234 | }
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| 235 | else if (m.Msg == (int)Win32.Msgs.WM_NCLBUTTONDBLCLK)
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| 236 | {
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| 237 | uint result = NativeMethods.SendMessage(this.Handle, (int)Win32.Msgs.WM_NCHITTEST, 0, (uint)m.LParam);
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| 238 | if (result != 2) // HITTEST_CAPTION
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| 239 | {
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| 240 | base.WndProc(ref m);
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| 241 | return;
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| 242 | }
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| 243 |
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| 244 | DockPanel.SuspendLayout(true);
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| 245 |
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| 246 | // Restore to panel
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| 247 | foreach (DockPane pane in NestedPanes)
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| 248 | {
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| 249 | if (pane.DockState != DockState.Float)
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| 250 | continue;
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| 251 | pane.RestoreToPanel();
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| 252 | }
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| 253 |
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| 254 |
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| 255 | DockPanel.ResumeLayout(true, true);
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| 256 | return;
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| 257 | }
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| 258 | else if (m.Msg == WM_CHECKDISPOSE)
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| 259 | {
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| 260 | if (NestedPanes.Count == 0)
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| 261 | Dispose();
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| 262 |
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| 263 | return;
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| 264 | }
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| 265 |
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| 266 | base.WndProc(ref m);
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| 267 | }
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| 268 |
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| 269 | internal void RefreshChanges()
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| 270 | {
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| 271 | if (IsDisposed)
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| 272 | return;
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| 273 |
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| 274 | if (VisibleNestedPanes.Count == 0)
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| 275 | {
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| 276 | ControlBox = true;
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| 277 | return;
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| 278 | }
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| 279 |
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| 280 | for (int i=VisibleNestedPanes.Count - 1; i>=0; i--)
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| 281 | {
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| 282 | DockContentCollection contents = VisibleNestedPanes[i].Contents;
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| 283 | for (int j=contents.Count - 1; j>=0; j--)
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| 284 | {
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| 285 | IDockContent content = contents[j];
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| 286 | if (content.DockHandler.DockState != DockState.Float)
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| 287 | continue;
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| 288 |
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| 289 | if (content.DockHandler.CloseButton && content.DockHandler.CloseButtonVisible)
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| 290 | {
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| 291 | ControlBox = true;
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| 292 | return;
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| 293 | }
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| 294 | }
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| 295 | }
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| 296 | //Only if there is a ControlBox do we turn it off
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| 297 | //old code caused a flash of the window.
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| 298 | if (ControlBox)
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| 299 | ControlBox = false;
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| 300 | }
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| 301 |
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| 302 | public virtual Rectangle DisplayingRectangle
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| 303 | {
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| 304 | get { return ClientRectangle; }
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| 305 | }
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| 306 |
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| 307 | internal void TestDrop(IDockDragSource dragSource, DockOutlineBase dockOutline)
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| 308 | {
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| 309 | if (VisibleNestedPanes.Count == 1)
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| 310 | {
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| 311 | DockPane pane = VisibleNestedPanes[0];
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| 312 | if (!dragSource.CanDockTo(pane))
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| 313 | return;
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| 314 |
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| 315 | Point ptMouse = Control.MousePosition;
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| 316 | uint lParam = Win32Helper.MakeLong(ptMouse.X, ptMouse.Y);
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| 317 | if (NativeMethods.SendMessage(Handle, (int)Win32.Msgs.WM_NCHITTEST, 0, lParam) == (uint)Win32.HitTest.HTCAPTION)
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| 318 | dockOutline.Show(VisibleNestedPanes[0], -1);
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| 319 | }
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| 320 | }
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| 321 |
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| 322 | #region IDockDragSource Members
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| 323 |
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| 324 | #region IDragSource Members
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| 325 |
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| 326 | Control IDragSource.DragControl
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| 327 | {
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| 328 | get { return this; }
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| 329 | }
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| 330 |
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| 331 | #endregion
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| 332 |
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| 333 | bool IDockDragSource.IsDockStateValid(DockState dockState)
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| 334 | {
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| 335 | return IsDockStateValid(dockState);
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| 336 | }
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| 337 |
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| 338 | bool IDockDragSource.CanDockTo(DockPane pane)
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| 339 | {
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| 340 | if (!IsDockStateValid(pane.DockState))
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| 341 | return false;
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| 342 |
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| 343 | if (pane.FloatWindow == this)
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| 344 | return false;
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| 345 |
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| 346 | return true;
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| 347 | }
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| 348 |
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| 349 | Rectangle IDockDragSource.BeginDrag(Point ptMouse)
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| 350 | {
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| 351 | return Bounds;
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| 352 | }
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| 353 |
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| 354 | public void FloatAt(Rectangle floatWindowBounds)
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| 355 | {
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| 356 | Bounds = floatWindowBounds;
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| 357 | }
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| 358 |
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| 359 | public void DockTo(DockPane pane, DockStyle dockStyle, int contentIndex)
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| 360 | {
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| 361 | if (dockStyle == DockStyle.Fill)
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| 362 | {
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| 363 | for (int i = NestedPanes.Count - 1; i >= 0; i--)
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| 364 | {
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| 365 | DockPane paneFrom = NestedPanes[i];
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| 366 | for (int j = paneFrom.Contents.Count - 1; j >= 0; j--)
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| 367 | {
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| 368 | IDockContent c = paneFrom.Contents[j];
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| 369 | c.DockHandler.Pane = pane;
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| 370 | if (contentIndex != -1)
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| 371 | pane.SetContentIndex(c, contentIndex);
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| 372 | c.DockHandler.Activate();
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| 373 | }
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| 374 | }
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| 375 | }
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| 376 | else
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| 377 | {
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| 378 | DockAlignment alignment = DockAlignment.Left;
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| 379 | if (dockStyle == DockStyle.Left)
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| 380 | alignment = DockAlignment.Left;
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| 381 | else if (dockStyle == DockStyle.Right)
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| 382 | alignment = DockAlignment.Right;
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| 383 | else if (dockStyle == DockStyle.Top)
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| 384 | alignment = DockAlignment.Top;
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| 385 | else if (dockStyle == DockStyle.Bottom)
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| 386 | alignment = DockAlignment.Bottom;
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| 387 |
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| 388 | MergeNestedPanes(VisibleNestedPanes, pane.NestedPanesContainer.NestedPanes, pane, alignment, 0.5);
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| 389 | }
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| 390 | }
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| 391 |
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| 392 | public void DockTo(DockPanel panel, DockStyle dockStyle)
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| 393 | {
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| 394 | if (panel != DockPanel)
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| 395 | throw new ArgumentException(Strings.IDockDragSource_DockTo_InvalidPanel, "panel");
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| 396 |
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| 397 | NestedPaneCollection nestedPanesTo = null;
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| 398 |
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| 399 | if (dockStyle == DockStyle.Top)
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| 400 | nestedPanesTo = DockPanel.DockWindows[DockState.DockTop].NestedPanes;
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| 401 | else if (dockStyle == DockStyle.Bottom)
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| 402 | nestedPanesTo = DockPanel.DockWindows[DockState.DockBottom].NestedPanes;
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| 403 | else if (dockStyle == DockStyle.Left)
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| 404 | nestedPanesTo = DockPanel.DockWindows[DockState.DockLeft].NestedPanes;
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| 405 | else if (dockStyle == DockStyle.Right)
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| 406 | nestedPanesTo = DockPanel.DockWindows[DockState.DockRight].NestedPanes;
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| 407 | else if (dockStyle == DockStyle.Fill)
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| 408 | nestedPanesTo = DockPanel.DockWindows[DockState.Document].NestedPanes;
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| 409 |
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| 410 | DockPane prevPane = null;
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| 411 | for (int i = nestedPanesTo.Count - 1; i >= 0; i--)
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| 412 | if (nestedPanesTo[i] != VisibleNestedPanes[0])
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| 413 | prevPane = nestedPanesTo[i];
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| 414 | MergeNestedPanes(VisibleNestedPanes, nestedPanesTo, prevPane, DockAlignment.Left, 0.5);
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| 415 | }
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| 416 |
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| 417 | private static void MergeNestedPanes(VisibleNestedPaneCollection nestedPanesFrom, NestedPaneCollection nestedPanesTo, DockPane prevPane, DockAlignment alignment, double proportion)
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| 418 | {
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| 419 | if (nestedPanesFrom.Count == 0)
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| 420 | return;
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| 421 |
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| 422 | int count = nestedPanesFrom.Count;
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| 423 | DockPane[] panes = new DockPane[count];
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| 424 | DockPane[] prevPanes = new DockPane[count];
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| 425 | DockAlignment[] alignments = new DockAlignment[count];
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| 426 | double[] proportions = new double[count];
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| 427 |
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| 428 | for (int i = 0; i < count; i++)
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| 429 | {
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| 430 | panes[i] = nestedPanesFrom[i];
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| 431 | prevPanes[i] = nestedPanesFrom[i].NestedDockingStatus.PreviousPane;
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| 432 | alignments[i] = nestedPanesFrom[i].NestedDockingStatus.Alignment;
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| 433 | proportions[i] = nestedPanesFrom[i].NestedDockingStatus.Proportion;
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| 434 | }
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| 435 |
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| 436 | DockPane pane = panes[0].DockTo(nestedPanesTo.Container, prevPane, alignment, proportion);
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| 437 | panes[0].DockState = nestedPanesTo.DockState;
|
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| 438 |
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|---|
| 439 | for (int i = 1; i < count; i++)
|
|---|
| 440 | {
|
|---|
| 441 | for (int j = i; j < count; j++)
|
|---|
| 442 | {
|
|---|
| 443 | if (prevPanes[j] == panes[i - 1])
|
|---|
| 444 | prevPanes[j] = pane;
|
|---|
| 445 | }
|
|---|
| 446 | pane = panes[i].DockTo(nestedPanesTo.Container, prevPanes[i], alignments[i], proportions[i]);
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|---|
| 447 | panes[i].DockState = nestedPanesTo.DockState;
|
|---|
| 448 | }
|
|---|
| 449 | }
|
|---|
| 450 |
|
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| 451 | #endregion
|
|---|
| 452 | }
|
|---|
| 453 | }
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