Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / WinForms / System / WinForms / Design / ToolStripInSituService.cs / 1 / ToolStripInSituService.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* */ namespace System.Windows.Forms.Design { using System.Design; using System.Runtime.InteropServices; using System.ComponentModel; using System.Diagnostics; using System; using System.Collections; using Microsoft.Win32; using System.ComponentModel.Design; using System.Drawing; using System.Windows.Forms; using System.Windows.Forms.ComponentModel; using System.Windows.Forms.Design; using System.Windows.Forms.Design.Behavior; ////// /// This class implements the ISupportInSituService which enables some designers to /// go into InSitu Editing when Keys are pressed while the Component is Selected. /// internal class ToolStripInSituService : ISupportInSituService, IDisposable{ private IServiceProvider sp; private IDesignerHost designerHost; private IComponentChangeService componentChangeSvc; private ToolStripDesigner toolDesigner; private ToolStripItemDesigner toolItemDesigner; private ToolStripKeyboardHandlingService toolStripKeyBoardService; ////// /// The constructor for this class which takes the serviceprovider used to get the selectionservice. /// This ToolStripInSituService is ToolStrip specific. /// public ToolStripInSituService(IServiceProvider provider) { this.sp = provider; designerHost = (IDesignerHost)provider.GetService(typeof(IDesignerHost)); Debug.Assert(designerHost != null, "ToolStripKeyboardHandlingService relies on the selection service, which is unavailable."); if (designerHost != null) { designerHost.AddService(typeof(ISupportInSituService), this); } componentChangeSvc = (IComponentChangeService)designerHost.GetService(typeof(IComponentChangeService)); Debug.Assert(componentChangeSvc != null, "ToolStripKeyboardHandlingService relies on the componentChange service, which is unavailable."); if (componentChangeSvc != null) { componentChangeSvc.ComponentRemoved += new ComponentEventHandler(OnComponentRemoved); } } ////// /// Disposes of this object, removing all commands from the menu service. /// public void Dispose() { if (toolDesigner != null) { toolDesigner.Dispose(); toolDesigner = null; } if (toolItemDesigner != null) { toolItemDesigner.Dispose(); toolItemDesigner = null; } if (componentChangeSvc != null) { componentChangeSvc.ComponentRemoved -= new ComponentEventHandler(OnComponentRemoved); componentChangeSvc = null; } } private ToolStripKeyboardHandlingService ToolStripKeyBoardService { get { if (toolStripKeyBoardService == null) { toolStripKeyBoardService = (ToolStripKeyboardHandlingService)sp.GetService(typeof(ToolStripKeyboardHandlingService)); } return toolStripKeyBoardService; } } ////// /// Returning true for IgnoreMessages means that this service is interested in getting the KeyBoard characters. /// public bool IgnoreMessages { get { ISelectionService selectionService = (ISelectionService)sp.GetService(typeof(ISelectionService)); IDesignerHost host = (IDesignerHost)sp.GetService(typeof(IDesignerHost)); if (selectionService != null && host != null) { IComponent comp = selectionService.PrimarySelection as IComponent; if (comp == null) { comp = (IComponent)ToolStripKeyBoardService.SelectedDesignerControl; } if (comp != null) { DesignerToolStripControlHost c = comp as DesignerToolStripControlHost; if (c != null) { ToolStripDropDown dropDown = c.GetCurrentParent() as ToolStripDropDown; if (dropDown != null) { ToolStripDropDownItem parentItem = dropDown.OwnerItem as ToolStripDropDownItem; if (parentItem != null) { ToolStripOverflowButton parent = parentItem as ToolStripOverflowButton; if (parent != null) { //return false ... We are on overflow.. return false; } else { toolItemDesigner = host.GetDesigner(parentItem) as ToolStripMenuItemDesigner; if (toolItemDesigner != null) { toolDesigner = null; return true; } } } } else { MenuStrip tool = c.GetCurrentParent() as MenuStrip; if (tool != null) { toolDesigner = host.GetDesigner(tool) as ToolStripDesigner; if (toolDesigner != null) { toolItemDesigner = null; return true; } } } } else if (comp is ToolStripDropDown) //case for ToolStripDropDown.. { ToolStripDropDownDesigner designer = host.GetDesigner(comp) as ToolStripDropDownDesigner; if (designer != null) { ToolStripMenuItem toolItem = designer.DesignerMenuItem; if (toolItem != null) { toolItemDesigner = host.GetDesigner(toolItem) as ToolStripItemDesigner; if (toolItemDesigner != null) { toolDesigner = null; return true; } } } } else if (comp is MenuStrip) { toolDesigner = host.GetDesigner(comp) as ToolStripDesigner; if (toolDesigner != null) { toolItemDesigner = null; return true; } } else if (comp is ToolStripMenuItem){ toolItemDesigner = host.GetDesigner(comp) as ToolStripItemDesigner; if (toolItemDesigner != null) { toolDesigner = null; return true; } } } } return false; } } ////// /// This function is called on the service when the PBRSFORWARD gets the first WM_CHAR message. /// public void HandleKeyChar() { if (toolDesigner != null || toolItemDesigner != null) { if (toolDesigner != null) { toolDesigner.ShowEditNode(false); } else if (toolItemDesigner != null) { ToolStripMenuItemDesigner menuDesigner = toolItemDesigner as ToolStripMenuItemDesigner; if (menuDesigner != null) { ISelectionService selService = (ISelectionService)sp.GetService(typeof(ISelectionService)); if (selService != null) { object comp = selService.PrimarySelection; if (comp == null) { comp = ToolStripKeyBoardService.SelectedDesignerControl; } DesignerToolStripControlHost designerItem = comp as DesignerToolStripControlHost; if (designerItem != null || comp is ToolStripDropDown) { menuDesigner.EditTemplateNode(false); } else { menuDesigner.ShowEditNode(false); } } } else { toolItemDesigner.ShowEditNode(false); } } } } ////// /// This function returns the Window handle that should get all the Keyboard messages. /// public IntPtr GetEditWindow() { IntPtr hWnd = IntPtr.Zero; if (toolDesigner != null && toolDesigner.Editor != null && toolDesigner.Editor.EditBox != null) { hWnd = (toolDesigner.Editor.EditBox.Visible) ? toolDesigner.Editor.EditBox.Handle : hWnd; } else if (toolItemDesigner != null && toolItemDesigner.Editor != null && toolItemDesigner.Editor.EditBox != null){ hWnd = (toolItemDesigner.Editor.EditBox.Visible) ? toolItemDesigner.Editor.EditBox.Handle : hWnd; } return hWnd; } // Remove the Service when the last toolStrip is removed. private void OnComponentRemoved(object sender, ComponentEventArgs e) { bool toolStripPresent = false; ComponentCollection comps = designerHost.Container.Components; foreach (IComponent comp in comps) { if (comp is ToolStrip) { toolStripPresent = true; break; } } if (!toolStripPresent) { ToolStripInSituService inSituService = (ToolStripInSituService)sp.GetService(typeof(ISupportInSituService)); if (inSituService != null) { //since we are going away .. restore the old commands. designerHost.RemoveService(typeof(ISupportInSituService)); } } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- IPEndPointCollection.cs
- EventArgs.cs
- MatrixTransform.cs
- EventData.cs
- TdsRecordBufferSetter.cs
- UInt64Storage.cs
- PropertyBuilder.cs
- PageAsyncTaskManager.cs
- FacetEnabledSchemaElement.cs
- ManipulationLogic.cs
- SimpleMailWebEventProvider.cs
- ProxyElement.cs
- SecurityHelper.cs
- PrimitiveDataContract.cs
- SystemIPv6InterfaceProperties.cs
- SnapshotChangeTrackingStrategy.cs
- TogglePattern.cs
- DurationConverter.cs
- LogicalExpr.cs
- InputEventArgs.cs
- TimerElapsedEvenArgs.cs
- CatalogZone.cs
- CornerRadius.cs
- RowUpdatedEventArgs.cs
- MouseEvent.cs
- Help.cs
- AspCompat.cs
- InputQueueChannel.cs
- AccessViolationException.cs
- EntitySqlQueryBuilder.cs
- NativeMethods.cs
- SimpleTypeResolver.cs
- Bits.cs
- SystemUdpStatistics.cs
- FileDialogCustomPlace.cs
- VirtualPath.cs
- BinHexEncoder.cs
- SqlMetaData.cs
- WebScriptEnablingBehavior.cs
- AssemblyBuilder.cs
- ListBoxDesigner.cs
- Splitter.cs
- AggregatePushdown.cs
- WindowsImpersonationContext.cs
- UserControl.cs
- DBSqlParserColumnCollection.cs
- SignedPkcs7.cs
- Nullable.cs
- IPHostEntry.cs
- ListControl.cs
- Pair.cs
- Soap.cs
- XmlSerializationReader.cs
- DataGridViewCellCollection.cs
- SpeakProgressEventArgs.cs
- ServiceReference.cs
- GridViewUpdatedEventArgs.cs
- MemberProjectionIndex.cs
- ContainerVisual.cs
- VarRemapper.cs
- DataTablePropertyDescriptor.cs
- TextPointer.cs
- ConfigurationLocationCollection.cs
- NavigateEvent.cs
- Membership.cs
- SafeProcessHandle.cs
- DesigntimeLicenseContext.cs
- HeaderUtility.cs
- Errors.cs
- QuaternionValueSerializer.cs
- SHA256.cs
- SmtpException.cs
- _UriTypeConverter.cs
- ListMarkerLine.cs
- WorkflowTraceTransfer.cs
- RegexMatch.cs
- EventLogPermissionAttribute.cs
- Constant.cs
- TextParagraphProperties.cs
- COM2TypeInfoProcessor.cs
- FileDialogCustomPlace.cs
- BufferedGenericXmlSecurityToken.cs
- LocalIdKeyIdentifierClause.cs
- List.cs
- DropShadowEffect.cs
- WCFBuildProvider.cs
- HtmlInputText.cs
- RightsManagementEncryptedStream.cs
- IImplicitResourceProvider.cs
- RegexCharClass.cs
- Asn1Utilities.cs
- GcSettings.cs
- ConfigXmlText.cs
- SerializerWriterEventHandlers.cs
- ConstructorNeedsTagAttribute.cs
- DrawingContext.cs
- HybridObjectCache.cs
- SetterBaseCollection.cs
- SurrogateEncoder.cs
- AnimationException.cs