1 files changed, 264 insertions, 0 deletions
diff --git a/source/ShiftUI/ToolStrip/ToolStripSplitStackLayout.cs b/source/ShiftUI/ToolStrip/ToolStripSplitStackLayout.cs
new file mode 100644
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--- /dev/null
+++ b/source/ShiftUI/ToolStrip/ToolStripSplitStackLayout.cs
@@ -0,0 +1,264 @@
+//
+// ToolStripSplitStackLayout.cs
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+// Copyright (c) 2006 Jonathan Pobst
+//
+// Authors:
+//	Jonathan Pobst ([email protected])
+//
+
+using System;
+using System.Drawing;
+using ShiftUI.Layout;
+
+namespace ShiftUI
+{
+	class ToolStripSplitStackLayout : LayoutEngine
+	{
+		public override bool Layout (object container, LayoutEventArgs args)
+		{
+			if (container is ToolStrip)
+			{
+				ToolStrip ts = (ToolStrip)container;
+
+				if (ts.Items == null)
+					return false;
+					
+				Rectangle ts_rect = ts.DisplayRectangle;
+
+				// Mono hasn't yet implemented ToolStripLayoutStyle.Table, so it comes here
+				// for layout.  The default (minimal) Table layout is 1 column, any number of rows,
+				// which translates effectively to Vertical orientation.
+				if (ts.Orientation == Orientation.Horizontal && ts.LayoutStyle != ToolStripLayoutStyle.Table)
+					LayoutHorizontalToolStrip (ts, ts_rect);
+				else
+					LayoutVerticalToolStrip (ts, ts_rect);
+					
+				return false;
+			} else	{
+				ToolStripContentPanel ts = (ToolStripContentPanel)container;
+				int x = ts.DisplayRectangle.Left;
+				int y = ts.DisplayRectangle.Top;
+
+				foreach (ToolStrip tsi in ts.Widgets) {
+					Rectangle new_bounds = new Rectangle ();
+
+					x += tsi.Margin.Left;
+
+					new_bounds.Location = new Point (x, y + tsi.Margin.Top);
+					new_bounds.Height = ts.DisplayRectangle.Height - tsi.Margin.Vertical;
+					new_bounds.Width = tsi.GetToolStripPreferredSize (new Size (0, new_bounds.Height)).Width;
+
+					tsi.Width = new_bounds.Width + 12;
+
+					x += new_bounds.Width + tsi.Margin.Right;
+				}
+			}
+
+			return false;
+		}
+		
+		private void LayoutHorizontalToolStrip (ToolStrip ts, Rectangle bounds)
+		{
+			//if (!ts.Visible) return;
+			
+			ToolStripItemOverflow[] overflow = new ToolStripItemOverflow[ts.Items.Count];
+			ToolStripItemPlacement[] placement = new ToolStripItemPlacement[ts.Items.Count];
+			Size proposedSize = new Size (0, bounds.Height);
+			int[] widths = new int[ts.Items.Count];
+			int total_width = 0;
+			int toolstrip_width = bounds.Width;
+			int i = 0;
+			bool can_overflow = ts.CanOverflow & !(ts is MenuStrip) & !(ts is StatusStrip);
+			bool need_overflow = false;
+			
+			foreach (ToolStripItem tsi in ts.Items) {
+				overflow[i] = tsi.Overflow;
+				placement[i] = tsi.Overflow == ToolStripItemOverflow.Always ? ToolStripItemPlacement.Overflow : ToolStripItemPlacement.Main;
+				widths[i] = tsi.GetPreferredSize (proposedSize).Width + tsi.Margin.Horizontal;
+				if (!tsi.Available)
+					placement[i] = ToolStripItemPlacement.None;
+				total_width += placement[i] == ToolStripItemPlacement.Main ? widths[i] : 0;
+				
+				if (placement[i] == ToolStripItemPlacement.Overflow)
+					need_overflow = true;
+				i++;
+			}
+
+			// This is needed for a button set to Overflow = Always
+			if (need_overflow) {
+				ts.OverflowButton.Visible = true;
+				ts.OverflowButton.SetBounds (new Rectangle (ts.Width - 16, 0, 16, ts.Height));
+				toolstrip_width -= ts.OverflowButton.Width;
+			} else
+				ts.OverflowButton.Visible = false;
+			
+			while (total_width > toolstrip_width) {
+				// If we can overflow, get our overflow button setup, and subtract it's width
+				// from our available width				
+				if (can_overflow && !ts.OverflowButton.Visible) {
+					ts.OverflowButton.Visible = true;
+					ts.OverflowButton.SetBounds (new Rectangle (ts.Width - 16, 0, 16, ts.Height));
+					toolstrip_width -= ts.OverflowButton.Width;
+				}					
+				
+				bool removed_one = false;
+				
+				// Start at the right, removing Overflow.AsNeeded first
+				for (int j = widths.Length - 1; j >= 0; j--)
+					if (overflow[j] == ToolStripItemOverflow.AsNeeded && placement[j] == ToolStripItemPlacement.Main) {
+						placement[j] = ToolStripItemPlacement.Overflow;
+						total_width -= widths[j];
+						removed_one = true;
+						break;
+					}
+			
+				// If we didn't remove any AsNeeded ones, we have to start removing Never ones
+				// These are not put on the Overflow, they are simply not shown
+				if (!removed_one)
+					for (int j = widths.Length - 1; j >= 0; j--)
+						if (overflow[j] == ToolStripItemOverflow.Never && placement[j] == ToolStripItemPlacement.Main) {
+							placement[j] = ToolStripItemPlacement.None;
+							total_width -= widths[j];
+							removed_one = true;
+							break;
+						}
+
+				// There's nothing left to remove, break or we will loop forever	
+				if (!removed_one)
+					break;
+			}
+
+			i = 0;
+			Point start_layout_pointer = new Point (ts.DisplayRectangle.Left, ts.DisplayRectangle.Top);
+			Point end_layout_pointer = new Point (ts.DisplayRectangle.Right, ts.DisplayRectangle.Top);
+			int button_height = ts.DisplayRectangle.Height;
+			
+			// Now we should know where everything goes, so lay everything out
+			foreach (ToolStripItem tsi in ts.Items) {
+				tsi.SetPlacement (placement[i]);
+				
+				if (placement[i] == ToolStripItemPlacement.Main) {
+					if (tsi.Alignment == ToolStripItemAlignment.Left) {
+						tsi.SetBounds (new Rectangle (start_layout_pointer.X + tsi.Margin.Left, start_layout_pointer.Y + tsi.Margin.Top, widths[i] - tsi.Margin.Horizontal, button_height - tsi.Margin.Vertical));
+						start_layout_pointer.X += widths[i];
+					} else {
+						tsi.SetBounds (new Rectangle (end_layout_pointer.X - tsi.Margin.Right - tsi.Width, end_layout_pointer.Y + tsi.Margin.Top, widths[i] - tsi.Margin.Horizontal, button_height - tsi.Margin.Vertical));
+						end_layout_pointer.X -= widths[i];
+					}			
+				}
+			
+				i++;
+			}			
+		}
+
+		private void LayoutVerticalToolStrip (ToolStrip ts, Rectangle bounds)
+		{
+			if (!ts.Visible) return;
+
+			ToolStripItemOverflow[] overflow = new ToolStripItemOverflow[ts.Items.Count];
+			ToolStripItemPlacement[] placement = new ToolStripItemPlacement[ts.Items.Count];
+			Size proposedSize = new Size (bounds.Width, 0);
+			int[] heights = new int[ts.Items.Count];
+			int[] widths = new int[ts.Items.Count];	// needed if ts.LayoutStyle == ToolStripLayoutStyle.Table
+			int total_height = 0;
+			int toolstrip_height = bounds.Height;
+			int i = 0;
+			bool can_overflow = ts.CanOverflow & !(ts is MenuStrip) & !(ts is StatusStrip);
+
+			foreach (ToolStripItem tsi in ts.Items) {
+				overflow[i] = tsi.Overflow;
+				placement[i] = tsi.Overflow == ToolStripItemOverflow.Always ? ToolStripItemPlacement.Overflow : ToolStripItemPlacement.Main;
+				var size = tsi.GetPreferredSize (proposedSize);
+				heights[i] = size.Height + tsi.Margin.Vertical;
+				widths[i] = size.Width + tsi.Margin.Horizontal;
+				if (!tsi.Available)
+					placement[i] = ToolStripItemPlacement.None;
+				total_height += placement[i] == ToolStripItemPlacement.Main ? heights[i] : 0;
+				i++;
+			}
+
+			ts.OverflowButton.Visible = false;
+
+			while (total_height > toolstrip_height) {
+				// If we can overflow, get our overflow button setup, and subtract it's width
+				// from our available width				
+				if (can_overflow && !ts.OverflowButton.Visible) {
+					ts.OverflowButton.Visible = true;
+					ts.OverflowButton.SetBounds (new Rectangle (0, ts.Height - 16,  ts.Width, 16));
+					toolstrip_height -= ts.OverflowButton.Height;
+				}
+
+				bool removed_one = false;
+
+				// Start at the right, removing Overflow.AsNeeded first
+				for (int j = heights.Length - 1; j >= 0; j--)
+					if (overflow[j] == ToolStripItemOverflow.AsNeeded && placement[j] == ToolStripItemPlacement.Main) {
+						placement[j] = ToolStripItemPlacement.Overflow;
+						total_height -= heights[j];
+						removed_one = true;
+						break;
+					}
+
+				// If we didn't remove any AsNeeded ones, we have to start removing Never ones
+				// These are not put on the Overflow, they are simply not shown
+				if (!removed_one)
+					for (int j = heights.Length - 1; j >= 0; j--)
+						if (overflow[j] == ToolStripItemOverflow.Never && placement[j] == ToolStripItemPlacement.Main) {
+							placement[j] = ToolStripItemPlacement.None;
+							total_height -= heights[j];
+							removed_one = true;
+							break;
+						}
+					
+				// There's nothing left to remove, break or we will loop forever	
+				if (!removed_one)
+					break;
+			}
+
+			i = 0;
+			Point start_layout_pointer = new Point (ts.DisplayRectangle.Left, ts.DisplayRectangle.Top);
+			Point end_layout_pointer = new Point (ts.DisplayRectangle.Left, ts.DisplayRectangle.Bottom);
+			int button_width = ts.DisplayRectangle.Width;
+
+			// Now we should know where everything goes, so lay everything out
+			foreach (ToolStripItem tsi in ts.Items) {
+				tsi.SetPlacement (placement[i]);
+				// Table layout is defined to lay out items flush left.
+				if (ts.LayoutStyle == ToolStripLayoutStyle.Table)
+					button_width = widths[i];
+
+				if (placement[i] == ToolStripItemPlacement.Main) {
+					if (tsi.Alignment == ToolStripItemAlignment.Left) {
+						tsi.SetBounds (new Rectangle (start_layout_pointer.X + tsi.Margin.Left, start_layout_pointer.Y + tsi.Margin.Top, button_width - tsi.Margin.Horizontal, heights[i] - tsi.Margin.Vertical));
+						start_layout_pointer.Y += heights[i];
+					} else {
+						tsi.SetBounds (new Rectangle (end_layout_pointer.X + tsi.Margin.Left, end_layout_pointer.Y - tsi.Margin.Bottom - tsi.Height, button_width - tsi.Margin.Horizontal, heights[i] - tsi.Margin.Vertical));
+						start_layout_pointer.Y += heights[i];
+					}
+				}
+
+				i++;
+			}
+		}
+	}
+}