Browse Source
git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@2441 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61shortcuts
Daniel Grunwald
19 years ago
24 changed files with 462 additions and 68 deletions
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// <file>
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// <copyright see="prj:///doc/copyright.txt"/>
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// <license see="prj:///doc/license.txt"/>
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// <owner name="Daniel Grunwald" email="daniel@danielgrunwald.de"/>
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// <version>$Revision$</version>
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// </file>
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using System; |
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using System.Collections.Generic; |
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using System.Diagnostics; |
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using ICSharpCode.WpfDesign.Adorners; |
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using ICSharpCode.WpfDesign.Extensions; |
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using System.Windows; |
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using System.Windows.Controls; |
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using System.Windows.Shapes; |
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using System.Windows.Media; |
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using System.Windows.Input; |
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namespace ICSharpCode.WpfDesign.Designer.Controls |
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{ |
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/// <summary>
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/// Adorner that displays the blue bar next to grids that can be used to create new rows/column.
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/// </summary>
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public class GridRailAdorner : Control |
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{ |
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static GridRailAdorner() |
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{ |
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DefaultStyleKeyProperty.OverrideMetadata(typeof(GridRailAdorner), new FrameworkPropertyMetadata(typeof(GridRailAdorner))); |
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} |
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readonly DesignItem gridItem; |
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readonly Grid grid; |
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readonly AdornerPanel adornerPanel; |
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readonly GridSplitterAdorner previewAdorner; |
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readonly Orientation orientation; |
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public const double RailSize = 10; |
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public const double SplitterWidth = 10; |
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public GridRailAdorner(DesignItem gridItem, AdornerPanel adornerPanel, Orientation orientation) |
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{ |
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Debug.Assert(gridItem != null); |
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Debug.Assert(adornerPanel != null); |
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this.gridItem = gridItem; |
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this.grid = (Grid)gridItem.Component; |
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this.adornerPanel = adornerPanel; |
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this.orientation = orientation; |
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if (orientation == Orientation.Horizontal) { |
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this.Height = RailSize; |
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previewAdorner = new GridColumnSplitterAdorner(); |
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} else { // vertical
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this.Width = RailSize; |
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previewAdorner = new GridRowSplitterAdorner(); |
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} |
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previewAdorner.IsPreview = true; |
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previewAdorner.IsHitTestVisible = false; |
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} |
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#region Handle mouse events to add a new row/column
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protected override void OnMouseEnter(MouseEventArgs e) |
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{ |
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base.OnMouseEnter(e); |
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adornerPanel.Children.Add(previewAdorner); |
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} |
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protected override void OnMouseMove(MouseEventArgs e) |
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{ |
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base.OnMouseMove(e); |
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RelativePlacement rp = new RelativePlacement(); |
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if (orientation == Orientation.Vertical) { |
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rp.XOffset = -RailSize; |
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rp.WidthOffset = RailSize; |
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rp.WidthRelativeToContentWidth = 1; |
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rp.HeightOffset = SplitterWidth; |
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rp.YOffset = e.GetPosition(this).Y - SplitterWidth / 2; |
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} else { |
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rp.YOffset = -RailSize; |
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rp.HeightOffset = RailSize; |
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rp.HeightRelativeToContentHeight = 1; |
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rp.WidthOffset = SplitterWidth; |
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rp.XOffset = e.GetPosition(this).X - SplitterWidth / 2; |
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} |
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AdornerPanel.SetPlacement(previewAdorner, rp); |
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} |
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protected override void OnMouseLeave(MouseEventArgs e) |
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{ |
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base.OnMouseLeave(e); |
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adornerPanel.Children.Remove(previewAdorner); |
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} |
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protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e) |
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{ |
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base.OnMouseLeftButtonDown(e); |
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e.Handled = true; |
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adornerPanel.Children.Remove(previewAdorner); |
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if (orientation == Orientation.Vertical) { |
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using (ChangeGroup changeGroup = gridItem.OpenGroup("Split grid row")) { |
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DesignItemProperty rowCollection = gridItem.Properties["RowDefinitions"]; |
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if (rowCollection.CollectionElements.Count == 0) { |
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DesignItem firstRow = gridItem.Services.Component.RegisterComponentForDesigner(new RowDefinition()); |
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rowCollection.CollectionElements.Add(firstRow); |
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grid.UpdateLayout(); // let WPF assign firstRow.ActualHeight
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} |
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double insertionPosition = e.GetPosition(this).Y; |
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for (int i = 0; i < grid.RowDefinitions.Count; i++) { |
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RowDefinition row = grid.RowDefinitions[i]; |
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if (row.Offset > insertionPosition) continue; |
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if (row.Offset + row.ActualHeight < insertionPosition) continue; |
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// split row
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GridLength oldLength = (GridLength)row.GetValue(RowDefinition.HeightProperty); |
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GridLength newLength1, newLength2; |
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SplitLength(oldLength, insertionPosition - row.Offset, row.ActualHeight, out newLength1, out newLength2); |
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DesignItem newRowDefinition = gridItem.Services.Component.RegisterComponentForDesigner(new RowDefinition()); |
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rowCollection.CollectionElements.Insert(i + 1, newRowDefinition); |
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rowCollection.CollectionElements[i].Properties[RowDefinition.HeightProperty].SetValue(newLength1); |
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newRowDefinition.Properties[RowDefinition.HeightProperty].SetValue(newLength2); |
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changeGroup.Commit(); |
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break; |
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} |
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} |
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} else { |
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using (ChangeGroup changeGroup = gridItem.OpenGroup("Split grid column")) { |
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DesignItemProperty columnCollection = gridItem.Properties["ColumnDefinitions"]; |
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if (columnCollection.CollectionElements.Count == 0) { |
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DesignItem firstColumn = gridItem.Services.Component.RegisterComponentForDesigner(new ColumnDefinition()); |
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columnCollection.CollectionElements.Add(firstColumn); |
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grid.UpdateLayout(); // let WPF assign firstColumn.ActualWidth
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} |
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double insertionPosition = e.GetPosition(this).X; |
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for (int i = 0; i < grid.ColumnDefinitions.Count; i++) { |
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ColumnDefinition column = grid.ColumnDefinitions[i]; |
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if (column.Offset > insertionPosition) continue; |
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if (column.Offset + column.ActualWidth < insertionPosition) continue; |
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// split column
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GridLength oldLength = (GridLength)column.GetValue(ColumnDefinition.WidthProperty); |
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GridLength newLength1, newLength2; |
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SplitLength(oldLength, insertionPosition - column.Offset, column.ActualWidth, out newLength1, out newLength2); |
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columnCollection.CollectionElements[i].Properties[ColumnDefinition.WidthProperty].SetValue(newLength1); |
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DesignItem newColumnDefinition = gridItem.Services.Component.RegisterComponentForDesigner(new ColumnDefinition()); |
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newColumnDefinition.Properties[ColumnDefinition.WidthProperty].SetValue(newLength2); |
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columnCollection.CollectionElements.Insert(i + 1, newColumnDefinition); |
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changeGroup.Commit(); |
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break; |
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} |
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} |
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} |
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} |
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void SplitLength(GridLength oldLength, double insertionPosition, double oldActualValue, |
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out GridLength newLength1, out GridLength newLength2) |
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{ |
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if (oldLength.IsAuto) { |
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oldLength = new GridLength(oldActualValue); |
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} |
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double percentage = insertionPosition / oldActualValue; |
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newLength1 = new GridLength(oldLength.Value * percentage, oldLength.GridUnitType); |
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newLength2 = new GridLength(oldLength.Value - newLength1.Value, oldLength.GridUnitType); |
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} |
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#endregion
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} |
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public class GridSplitterAdorner : Control |
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{ |
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public static readonly DependencyProperty IsPreviewProperty |
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= DependencyProperty.Register("IsPreview", typeof(bool), typeof(GridSplitterAdorner), new PropertyMetadata(SharedInstances.BoxedFalse)); |
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public bool IsPreview { |
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get { return (bool)GetValue(IsPreviewProperty); } |
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set { SetValue(IsPreviewProperty, SharedInstances.Box(value)); } |
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} |
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} |
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public class GridRowSplitterAdorner : GridSplitterAdorner |
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{ |
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static GridRowSplitterAdorner() |
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{ |
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DefaultStyleKeyProperty.OverrideMetadata(typeof(GridRowSplitterAdorner), new FrameworkPropertyMetadata(typeof(GridRowSplitterAdorner))); |
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CursorProperty.OverrideMetadata(typeof(GridRowSplitterAdorner), new FrameworkPropertyMetadata(Cursors.SizeNS)); |
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} |
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} |
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public class GridColumnSplitterAdorner : GridSplitterAdorner |
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{ |
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static GridColumnSplitterAdorner() |
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{ |
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DefaultStyleKeyProperty.OverrideMetadata(typeof(GridColumnSplitterAdorner), new FrameworkPropertyMetadata(typeof(GridColumnSplitterAdorner))); |
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CursorProperty.OverrideMetadata(typeof(GridColumnSplitterAdorner), new FrameworkPropertyMetadata(Cursors.SizeWE)); |
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} |
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} |
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} |
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@ -0,0 +1,130 @@ |
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// <file>
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// <copyright see="prj:///doc/copyright.txt"/>
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// <license see="prj:///doc/license.txt"/>
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// <owner name="Daniel Grunwald" email="daniel@danielgrunwald.de"/>
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// <version>$Revision$</version>
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// </file>
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using System; |
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using System.Collections.Generic; |
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using ICSharpCode.WpfDesign.Adorners; |
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using ICSharpCode.WpfDesign.Extensions; |
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using System.Windows; |
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using System.Windows.Controls; |
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using System.Windows.Shapes; |
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using System.Windows.Media; |
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using System.Windows.Threading; |
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using ICSharpCode.WpfDesign.Designer.Controls; |
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namespace ICSharpCode.WpfDesign.Designer.Extensions |
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{ |
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/// <summary>
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/// Allows arranging the rows/column on a grid.
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/// </summary>
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[ExtensionFor(typeof(Grid))] |
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public class GridAdornerProvider : PrimarySelectionAdornerProvider |
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{ |
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sealed class RowSplitterPlacement : AdornerPlacement |
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{ |
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readonly RowDefinition row; |
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public RowSplitterPlacement(RowDefinition row) { this.row = row; } |
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public override void Arrange(AdornerPanel panel, UIElement adorner, Size adornedElementSize) |
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{ |
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adorner.Arrange(new Rect(-GridRailAdorner.RailSize, |
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row.Offset - GridRailAdorner.SplitterWidth / 2, |
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GridRailAdorner.RailSize + adornedElementSize.Width, |
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GridRailAdorner.SplitterWidth)); |
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} |
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} |
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sealed class ColumnSplitterPlacement : AdornerPlacement |
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{ |
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readonly ColumnDefinition column; |
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public ColumnSplitterPlacement(ColumnDefinition column) { this.column = column; } |
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public override void Arrange(AdornerPanel panel, UIElement adorner, Size adornedElementSize) |
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{ |
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adorner.Arrange(new Rect(column.Offset - GridRailAdorner.SplitterWidth / 2, |
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-GridRailAdorner.RailSize, |
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GridRailAdorner.SplitterWidth, |
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GridRailAdorner.RailSize + adornedElementSize.Height)); |
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} |
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} |
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AdornerPanel adornerPanel = new AdornerPanel(); |
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GridRailAdorner topBar, leftBar; |
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protected override void OnInitialized() |
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{ |
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leftBar = new GridRailAdorner(this.ExtendedItem, adornerPanel, Orientation.Vertical); |
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topBar = new GridRailAdorner(this.ExtendedItem, adornerPanel, Orientation.Horizontal); |
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AdornerPanel.SetPlacement(leftBar, new RelativePlacement(HorizontalAlignment.Left, VerticalAlignment.Stretch)); |
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AdornerPanel.SetPlacement(topBar, new RelativePlacement(HorizontalAlignment.Stretch, VerticalAlignment.Top)); |
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adornerPanel.Children.Add(leftBar); |
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adornerPanel.Children.Add(topBar); |
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this.Adorners.Add(adornerPanel); |
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CreateSplitter(); |
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this.ExtendedItem.PropertyChanged += OnPropertyChanged; |
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base.OnInitialized(); |
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} |
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protected override void OnRemove() |
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{ |
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this.ExtendedItem.PropertyChanged -= OnPropertyChanged; |
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base.OnRemove(); |
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} |
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void OnPropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e) |
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{ |
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if (e.PropertyName == "RowDefinitions" || e.PropertyName == "ColumnDefinitions") { |
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CreateSplitter(); |
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} |
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} |
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readonly List<GridSplitterAdorner> splitterList = new List<GridSplitterAdorner>(); |
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/// <summary>
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/// flag used to unsure that the asynchronus splitter creation is only enqueued once
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/// </summary>
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bool requireSplitterRecreation; |
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void CreateSplitter() |
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{ |
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if (requireSplitterRecreation) return; |
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requireSplitterRecreation = true; |
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// splitter creation is asynchronous to prevent unnecessary splitter re-creation when multiple
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// changes to the collection are done.
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// It also ensures that the Offset property of new rows/columns is initialized when the splitter
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// is added.
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Dispatcher.CurrentDispatcher.BeginInvoke( |
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DispatcherPriority.Loaded, // Loaded = after layout, but before input
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(Action)delegate { |
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requireSplitterRecreation = false; |
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foreach (GridSplitterAdorner splitter in splitterList) { |
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adornerPanel.Children.Remove(splitter); |
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} |
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splitterList.Clear(); |
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Grid grid = (Grid)this.ExtendedItem.Component; |
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for (int i = 1; i < grid.RowDefinitions.Count; i++) { |
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RowDefinition row = grid.RowDefinitions[i]; |
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GridRowSplitterAdorner splitter = new GridRowSplitterAdorner(); |
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AdornerPanel.SetPlacement(splitter, new RowSplitterPlacement(row)); |
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adornerPanel.Children.Add(splitter); |
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splitterList.Add(splitter); |
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} |
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for (int i = 1; i < grid.ColumnDefinitions.Count; i++) { |
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ColumnDefinition column = grid.ColumnDefinitions[i]; |
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GridColumnSplitterAdorner splitter = new GridColumnSplitterAdorner(); |
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AdornerPanel.SetPlacement(splitter, new ColumnSplitterPlacement(column)); |
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adornerPanel.Children.Add(splitter); |
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splitterList.Add(splitter); |
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} |
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}); |
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} |
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} |
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} |
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@ -0,0 +1,24 @@ |
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// <file>
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// <copyright see="prj:///doc/copyright.txt"/>
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// <license see="prj:///doc/license.txt"/>
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// <owner name="Daniel Grunwald" email="daniel@danielgrunwald.de"/>
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// <version>$Revision$</version>
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// </file>
|
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using System; |
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namespace ICSharpCode.WpfDesign.Designer |
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{ |
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static class SharedInstances |
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{ |
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internal static readonly object BoxedTrue = true; |
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internal static readonly object BoxedFalse = false; |
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internal static readonly object[] EmptyObjectArray = new object[0]; |
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internal static readonly DesignItem[] EmptyDesignItemArray = new DesignItem[0]; |
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internal static object Box(bool value) |
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{ |
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return value ? BoxedTrue : BoxedFalse; |
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} |
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} |
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} |
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