Browse Source
git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@4848 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61shortcuts
Daniel Grunwald
17 years ago
5 changed files with 263 additions and 197 deletions
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/* |
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* Created by SharpDevelop. |
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* User: daniel |
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* Date: 31.08.2009 |
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* Time: 14:55 |
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* |
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* To change this template use Tools | Options | Coding | Edit Standard Headers. |
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*/ |
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using System; |
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using System.Diagnostics; |
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using System.Linq; |
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using System.Windows; |
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using System.Windows.Controls; |
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using System.Windows.Controls.Primitives; |
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using System.Windows.Input; |
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using ICSharpCode.AvalonEdit.Editing; |
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using ICSharpCode.AvalonEdit.Rendering; |
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using ICSharpCode.SharpDevelop; |
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using ICSharpCode.SharpDevelop.Dom; |
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using ICSharpCode.SharpDevelop.Editor; |
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using ICSharpCode.SharpDevelop.Editor.AvalonEdit; |
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using ICSharpCode.SharpDevelop.Editor.Commands; |
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namespace ICSharpCode.AvalonEdit.AddIn |
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{ |
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/// <summary>
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/// The text editor use inside the CodeEditor.
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/// There can be two CodeEditorView instances in a single CodeEditor if split-view
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/// is enabled.
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/// </summary>
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public class CodeEditorView : TextEditor |
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{ |
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public ITextEditor Adapter { get; set; } |
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public CodeEditorView() |
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{ |
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this.CommandBindings.Add(new CommandBinding(ApplicationCommands.Help, OnHelpExecuted)); |
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this.MouseHover += TextEditorMouseHover; |
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this.MouseHoverStopped += TextEditorMouseHoverStopped; |
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this.MouseLeave += TextEditorMouseLeave; |
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this.TextArea.TextView.MouseDown += TextViewMouseDown; |
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} |
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#region Help
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void OnHelpExecuted(object sender, ExecutedRoutedEventArgs e) |
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{ |
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ShowHelp(); |
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} |
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public void ShowHelp() |
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{ |
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// Resolve expression at cursor and show help
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TextArea textArea = this.TextArea; |
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IExpressionFinder expressionFinder = ParserService.GetExpressionFinder(this.Adapter.FileName); |
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if (expressionFinder == null) |
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return; |
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string textContent = this.Text; |
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ExpressionResult expressionResult = expressionFinder.FindFullExpression(textContent, textArea.Caret.Offset); |
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string expression = expressionResult.Expression; |
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if (expression != null && expression.Length > 0) { |
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ResolveResult result = ParserService.Resolve(expressionResult, textArea.Caret.Line, textArea.Caret.Column, this.Adapter.FileName, textContent); |
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TypeResolveResult trr = result as TypeResolveResult; |
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if (trr != null) { |
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HelpProvider.ShowHelp(trr.ResolvedClass); |
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} |
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MemberResolveResult mrr = result as MemberResolveResult; |
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if (mrr != null) { |
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HelpProvider.ShowHelp(mrr.ResolvedMember); |
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} |
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} |
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} |
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#endregion
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#region Tooltip
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ToolTip toolTip; |
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Popup popup; |
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void TextEditorMouseHover(object sender, MouseEventArgs e) |
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{ |
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Debug.Assert(sender == this); |
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ToolTipRequestEventArgs args = new ToolTipRequestEventArgs(this.Adapter); |
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var pos = GetPositionFromPoint(e.GetPosition(this)); |
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args.InDocument = pos.HasValue; |
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if (pos.HasValue) { |
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args.LogicalPosition = AvalonEditDocumentAdapter.ToLocation(pos.Value); |
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} |
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TextMarkerService textMarkerService = this.Adapter.GetService(typeof(ITextMarkerService)) as TextMarkerService; |
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if (args.InDocument && textMarkerService != null) { |
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var markersAtOffset = textMarkerService.GetMarkersAtOffset(args.Editor.Document.PositionToOffset(args.LogicalPosition.Line, args.LogicalPosition.Column)); |
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ITextMarker markerWithToolTip = markersAtOffset.FirstOrDefault(marker => marker.ToolTip != null); |
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if (markerWithToolTip != null) { |
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args.ShowToolTip(markerWithToolTip.ToolTip); |
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} |
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} |
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if (!args.Handled) { |
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// if request wasn't handled by a marker, pass it to the ToolTipRequestService
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ToolTipRequestService.RequestToolTip(args); |
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} |
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if (args.ContentToShow != null) { |
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var contentToShowITooltip = args.ContentToShow as ITooltip; |
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if (contentToShowITooltip != null && contentToShowITooltip.ShowAsPopup) { |
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if (!(args.ContentToShow is UIElement)) { |
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throw new NotSupportedException("Content to show in Popup must be UIElement: " + args.ContentToShow); |
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} |
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if (popup == null) { |
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popup = CreatePopup(); |
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} |
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if (TryCloseExistingPopup(false)) { |
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// when popup content decides to close, close the popup
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contentToShowITooltip.Closed += (closedSender, closedArgs) => { popup.IsOpen = false; }; |
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popup.Child = (UIElement)args.ContentToShow; |
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//ICSharpCode.SharpDevelop.Debugging.DebuggerService.CurrentDebugger.IsProcessRunningChanged
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SetPopupPosition(popup, e); |
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popup.IsOpen = true; |
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} |
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e.Handled = true; |
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} else { |
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if (toolTip == null) { |
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toolTip = new ToolTip(); |
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toolTip.Closed += ToolTipClosed; |
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} |
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toolTip.Content = args.ContentToShow; |
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toolTip.IsOpen = true; |
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e.Handled = true; |
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} |
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} else { |
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// close popup if mouse hovered over empty area
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if (popup != null) { |
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e.Handled = true; |
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} |
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TryCloseExistingPopup(false); |
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} |
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} |
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bool TryCloseExistingPopup(bool mouseClick) |
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{ |
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bool canClose = true; |
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if (popup != null) { |
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var popupContentITooltip = popup.Child as ITooltip; |
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if (popupContentITooltip != null) { |
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canClose = popupContentITooltip.Close(mouseClick); |
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} |
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if (canClose) { |
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popup.IsOpen = false; |
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} |
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} |
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return canClose; |
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} |
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void SetPopupPosition(Popup popup, MouseEventArgs mouseArgs) |
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{ |
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var popupPosition = GetPopupPosition(mouseArgs); |
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popup.HorizontalOffset = popupPosition.X; |
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popup.VerticalOffset = popupPosition.Y; |
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} |
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/// <summary> Returns Popup position based on mouse position, in device independent units </summary>
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Point GetPopupPosition(MouseEventArgs mouseArgs) |
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{ |
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Point mousePos = mouseArgs.GetPosition(this); |
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Point positionInPixels; |
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// align Popup with line bottom
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TextViewPosition? logicalPos = GetPositionFromPoint(mousePos); |
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if (logicalPos.HasValue) { |
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var textView = this.TextArea.TextView; |
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positionInPixels = |
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textView.PointToScreen( |
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textView.GetVisualPosition(logicalPos.Value, VisualYPosition.LineBottom) - textView.ScrollOffset); |
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positionInPixels.X -= 4; |
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} else { |
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positionInPixels = PointToScreen(mousePos + new Vector(-4, 6)); |
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} |
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// use device independent units, because Popup Left/Top are in independent units
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return positionInPixels.TransformFromDevice(this); |
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} |
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Popup CreatePopup() |
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{ |
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popup = new Popup(); |
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popup.Closed += PopupClosed; |
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popup.Placement = PlacementMode.Absolute; |
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popup.StaysOpen = true; |
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return popup; |
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} |
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void TextEditorMouseHoverStopped(object sender, MouseEventArgs e) |
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{ |
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if (toolTip != null) { |
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toolTip.IsOpen = false; |
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e.Handled = true; |
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} |
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} |
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void TextEditorMouseLeave(object sender, MouseEventArgs e) |
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{ |
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if (popup != null && !popup.IsMouseOver) { |
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// do not close popup if mouse moved from editor to popup
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TryCloseExistingPopup(false); |
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} |
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} |
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void ToolTipClosed(object sender, RoutedEventArgs e) |
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{ |
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toolTip = null; |
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} |
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void PopupClosed(object sender, EventArgs e) |
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{ |
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popup = null; |
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} |
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#endregion
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#region Ctrl+Click Go To Definition
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void TextViewMouseDown(object sender, MouseButtonEventArgs e) |
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{ |
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// close existing popup immediately on text editor mouse down
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TryCloseExistingPopup(false); |
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if (e.ChangedButton == MouseButton.Left && Keyboard.Modifiers == ModifierKeys.Control) { |
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var position = GetPositionFromPoint(e.GetPosition(this)); |
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if (position != null) { |
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GoToDefinition.Run(this.Adapter, this.Document.GetOffset(position.Value)); |
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e.Handled = true; |
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} |
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} |
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} |
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#endregion
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public void JumpTo(int line, int column) |
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{ |
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TryCloseExistingPopup(true); |
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// the adapter sets the caret position and takes care of scrolling
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this.Adapter.JumpTo(line, column); |
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this.Focus(); |
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} |
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} |
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} |
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