Browse Source
<toolkit:RichTextBox>
<toolkit:RichTextBoxFormatBarManager.FormatBar>
<toolkit:RichTextBoxFormatBar />
</toolkit:RichTextBoxFormatBarManager.FormatBar>
</toolkit:RichTextBox>
or on the default RichTextBox like so
<RichTextBox >
<toolkit:RichTextBoxFormatBarManager.FormatBar>
<toolkit:RichTextBoxFormatBar />
</toolkit:RichTextBoxFormatBarManager.FormatBar>
</RichTextBox>
You can also create your own format bar by inheriting from IRichTextBoxFormatBar.
pull/1645/head
brianlagunas_cp
15 years ago
15 changed files with 269 additions and 164 deletions
@ -1,107 +0,0 @@ |
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using System; |
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using System.Windows.Controls; |
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using System.Windows.Documents; |
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using System.Windows; |
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namespace Microsoft.Windows.Controls.Formatting |
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{ |
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internal class FormatToolbarManager |
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{ |
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RichTextBox _richTextBox; |
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readonly UIElementAdorner<Control> _adorner; |
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FormatToolbar toolbar; |
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bool AdornerIsVisible |
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{ |
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get { return _adorner.Visibility == Visibility.Visible; } |
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} |
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public FormatToolbarManager(RichTextBox richTextBox) |
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{ |
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_richTextBox = richTextBox; |
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_adorner = new UIElementAdorner<Control>(richTextBox); |
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toolbar = new FormatToolbar(richTextBox); |
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AttachToRichtextBox(); |
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} |
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private void AttachToRichtextBox() |
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{ |
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_richTextBox.Selection.Changed += Selection_Changed; |
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} |
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void Selection_Changed(object sender, EventArgs e) |
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{ |
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TextRange selectedText = new TextRange(_richTextBox.Selection.Start, _richTextBox.Selection.End); |
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if (selectedText.Text.Length > 0) |
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{ |
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VerifyAdorner(); |
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} |
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else |
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{ |
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HideAdorner(); |
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} |
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} |
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//TODO: refactor
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void VerifyAdorner() |
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{ |
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VerifyAdornerLayer(); |
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Control adorningEditor = toolbar; |
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_adorner.Child = adorningEditor; |
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_adorner.Visibility = Visibility.Visible; |
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Rect wordBoundary = _richTextBox.Selection.End.GetPositionAtOffset(0, LogicalDirection.Backward).GetCharacterRect(LogicalDirection.Backward); |
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double left = wordBoundary.X; |
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double top = (wordBoundary.Y + wordBoundary.Height) - toolbar.ActualHeight; |
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//top boundary
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if (top < 0) |
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{ |
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top = wordBoundary.Y + wordBoundary.Height; |
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} |
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//right boundary
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if (left + toolbar.ActualWidth > _richTextBox.ActualWidth - 20) |
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{ |
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left = left - toolbar.ActualWidth; |
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top = wordBoundary.Y + wordBoundary.Height + 5; |
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} |
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//bottom boundary
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if (top + toolbar.ActualHeight > _richTextBox.ActualHeight - 20) |
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{ |
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top = wordBoundary.Y - (toolbar.ActualHeight + wordBoundary.Height); |
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} |
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_adorner.SetOffsets(left, top); |
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} |
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/// <summary>
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/// Ensures that the adorner is in the adorner layer.
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/// </summary>
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/// <returns>True if the adorner is in the adorner layer, else false.</returns>
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bool VerifyAdornerLayer() |
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{ |
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if (_adorner.Parent != null) |
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return true; |
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AdornerLayer layer = AdornerLayer.GetAdornerLayer(_richTextBox); |
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if (layer == null) |
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return false; |
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layer.Add(_adorner); |
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return true; |
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} |
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void HideAdorner() |
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{ |
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if (this.AdornerIsVisible) |
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{ |
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_adorner.Visibility = Visibility.Collapsed; |
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_adorner.Child = null; |
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} |
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} |
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} |
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} |
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@ -0,0 +1,9 @@ |
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using System; |
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namespace Microsoft.Windows.Controls |
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{ |
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public interface IRichTextBoxFormatBar |
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{ |
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global::System.Windows.Controls.RichTextBox RichTextBox { get; set; } |
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} |
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} |
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|
Before Width: | Height: | Size: 175 B After Width: | Height: | Size: 175 B |
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Before Width: | Height: | Size: 172 B After Width: | Height: | Size: 172 B |
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Before Width: | Height: | Size: 183 B After Width: | Height: | Size: 183 B |
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Before Width: | Height: | Size: 169 B After Width: | Height: | Size: 169 B |
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Before Width: | Height: | Size: 186 B After Width: | Height: | Size: 186 B |
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Before Width: | Height: | Size: 181 B After Width: | Height: | Size: 181 B |
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Before Width: | Height: | Size: 197 B After Width: | Height: | Size: 197 B |
@ -0,0 +1,177 @@ |
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using System; |
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using System.Windows; |
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using System.Windows.Controls; |
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using System.Windows.Documents; |
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using Microsoft.Windows.Controls.Core; |
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namespace Microsoft.Windows.Controls |
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{ |
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public class RichTextBoxFormatBarManager : DependencyObject |
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{ |
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#region Members
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private global::System.Windows.Controls.RichTextBox _richTextBox; |
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private UIElementAdorner<Control> _adorner; |
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private IRichTextBoxFormatBar _toolbar; |
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#endregion //Members
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#region Properties
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#region FormatBar
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public static readonly DependencyProperty FormatBarProperty = DependencyProperty.RegisterAttached("FormatBar", typeof(IRichTextBoxFormatBar), typeof(RichTextBox), new PropertyMetadata(null, OnFormatBarPropertyChanged)); |
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public static void SetFormatBar(UIElement element, IRichTextBoxFormatBar value) |
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{ |
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element.SetValue(FormatBarProperty, value); |
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} |
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public static IRichTextBoxFormatBar GetFormatBar(UIElement element) |
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{ |
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return (IRichTextBoxFormatBar)element.GetValue(FormatBarProperty); |
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} |
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private static void OnFormatBarPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) |
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{ |
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global::System.Windows.Controls.RichTextBox rtb = d as global::System.Windows.Controls.RichTextBox; |
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if (rtb == null) |
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throw new Exception("A FormatBar can only be applied to a RichTextBox."); |
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RichTextBoxFormatBarManager manager = new RichTextBoxFormatBarManager(); |
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manager.AttachFormatBarToRichtextBox(rtb, e.NewValue as IRichTextBoxFormatBar); |
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} |
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#endregion //FormatBar
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bool AdornerIsVisible |
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{ |
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get { return _adorner.Visibility == Visibility.Visible; } |
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} |
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#endregion //Properties
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#region Event Handlers
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void RichTextBox_SelectionChanged(object sender, EventArgs e) |
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{ |
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TextRange selectedText = new TextRange(_richTextBox.Selection.Start, _richTextBox.Selection.End); |
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if (selectedText.Text.Length > 0 && !String.IsNullOrWhiteSpace(selectedText.Text)) |
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{ |
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ShowAdorner(); |
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} |
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else |
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{ |
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HideAdorner(); |
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} |
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} |
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#endregion //Event Handlers
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#region Methods
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/// <summary>
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/// Attaches a FormatBar to a RichtextBox
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/// </summary>
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/// <param name="richTextBox">The RichtextBox to attach to.</param>
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/// <param name="formatBar">The Formatbar to attach.</param>
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private void AttachFormatBarToRichtextBox(global::System.Windows.Controls.RichTextBox richTextBox, IRichTextBoxFormatBar formatBar) |
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{ |
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_richTextBox = richTextBox; |
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_richTextBox.PreviewMouseMove += RichTextBox_PreviewMouseMove; |
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_richTextBox.Selection.Changed += RichTextBox_SelectionChanged; |
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_adorner = new UIElementAdorner<Control>(_richTextBox); |
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formatBar.RichTextBox = _richTextBox; |
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_toolbar = formatBar; |
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} |
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void RichTextBox_PreviewMouseMove(object sender, System.Windows.Input.MouseEventArgs e) |
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{ |
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//if the mouse moves outside the richtextbox bounds hide the adorner
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//though this deosn't always work, especially if the user moves the mouse very quickly.
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//need to find a better solution, but this will work for now.
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Point p = e.GetPosition(_richTextBox); |
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if (p.X <= 5.0 || p.X >= _richTextBox.ActualWidth - 5 || p.Y <= 3.0 || p.Y >= _richTextBox.ActualHeight - 3) |
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HideAdorner(); |
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} |
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/// <summary>
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/// Shows the FormatBar
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/// </summary>
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void ShowAdorner() |
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{ |
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VerifyAdornerLayer(); |
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Control adorningEditor = _toolbar as Control; |
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_adorner.Child = adorningEditor; |
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_adorner.Visibility = Visibility.Visible; |
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PositionFormatBar(adorningEditor); |
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} |
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/// <summary>
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/// Positions the FormatBar so that is does not go outside the bounds of the RichTextBox or covers the selected text
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/// </summary>
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/// <param name="adorningEditor"></param>
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private void PositionFormatBar(Control adorningEditor) |
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{ |
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Rect wordBoundary = _richTextBox.Selection.End.GetPositionAtOffset(0, LogicalDirection.Backward).GetCharacterRect(LogicalDirection.Backward); |
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double left = wordBoundary.X; |
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double top = (wordBoundary.Y + wordBoundary.Height) - adorningEditor.ActualHeight; |
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//top boundary
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if (top < 0) |
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{ |
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top = wordBoundary.Y + wordBoundary.Height; |
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} |
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|
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//right boundary
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if (left + adorningEditor.ActualWidth > _richTextBox.ActualWidth - 20) |
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{ |
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left = left - adorningEditor.ActualWidth; |
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top = wordBoundary.Y + wordBoundary.Height + 5; |
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} |
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|
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//bottom boundary
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if (top + adorningEditor.ActualHeight > _richTextBox.ActualHeight - 20) |
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{ |
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top = wordBoundary.Y - (adorningEditor.ActualHeight + wordBoundary.Height); |
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} |
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_adorner.SetOffsets(left, top); |
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} |
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/// <summary>
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/// Ensures that the IRichTextFormatBar is in the adorner layer.
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/// </summary>
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/// <returns>True if the IRichTextFormatBar is in the adorner layer, else false.</returns>
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bool VerifyAdornerLayer() |
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{ |
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if (_adorner.Parent != null) |
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return true; |
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AdornerLayer layer = AdornerLayer.GetAdornerLayer(_richTextBox); |
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if (layer == null) |
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return false; |
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layer.Add(_adorner); |
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return true; |
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} |
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|
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/// <summary>
|
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/// Hides the IRichTextFormatBar that is in the adornor layer.
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/// </summary>
|
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void HideAdorner() |
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{ |
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if (AdornerIsVisible) |
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{ |
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_adorner.Visibility = Visibility.Collapsed; |
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_adorner.Child = null; |
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} |
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} |
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#endregion //Methods
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} |
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} |
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