Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / WinForms / Managed / System / WinForms / ToolStripDropDownButton.cs / 1 / ToolStripDropDownButton.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Windows.Forms { using System; using System.Collections; using System.ComponentModel; using System.Drawing; using Microsoft.Win32; using System.Drawing.Imaging; using System.Threading; using System.Diagnostics; using System.Windows.Forms.ButtonInternal; using System.Windows.Forms.Layout; using System.Security.Permissions; using System.Security; using System.Windows.Forms.Design; ////// /// A ToolStripButton that can display a popup. /// [ToolStripItemDesignerAvailability(ToolStripItemDesignerAvailability.ToolStrip | ToolStripItemDesignerAvailability.StatusStrip)] public class ToolStripDropDownButton : ToolStripDropDownItem { private bool showDropDownArrow = true; private byte openMouseId = 0; ////// /// Constructs a ToolStripButton that can display a popup. /// public ToolStripDropDownButton() { Initialize(); } public ToolStripDropDownButton(string text):base(text,null,(EventHandler)null) { Initialize(); } public ToolStripDropDownButton(Image image):base(null,image,(EventHandler)null) { Initialize(); } public ToolStripDropDownButton(string text, Image image):base(text,image,(EventHandler)null) { Initialize(); } public ToolStripDropDownButton(string text, Image image, EventHandler onClick):base(text,image,onClick) { Initialize(); } public ToolStripDropDownButton(string text, Image image, EventHandler onClick, string name) :base(text,image,onClick,name){ Initialize(); } public ToolStripDropDownButton(string text, Image image, params ToolStripItem[] dropDownItems):base(text,image,dropDownItems) { Initialize(); } [DefaultValue(true)] public new bool AutoToolTip { get { return base.AutoToolTip; } set { base.AutoToolTip = value; } } protected override bool DefaultAutoToolTip { get { return true; } } ///[ DefaultValue(true), SRDescription(SR.ToolStripDropDownButtonShowDropDownArrowDescr), SRCategory(SR.CatAppearance) ] public bool ShowDropDownArrow { get { return showDropDownArrow; } set { if (showDropDownArrow != value) { showDropDownArrow = value; this.InvalidateItemLayout(PropertyNames.ShowDropDownArrow); } } } /// /// Creates an instance of the object that defines how image and text /// gets laid out in the ToolStripItem /// internal override ToolStripItemInternalLayout CreateInternalLayout() { return new ToolStripDropDownButtonInternalLayout(this); } protected override ToolStripDropDown CreateDefaultDropDown() { // AutoGenerate a Winbar DropDown - set the property so we hook events return new ToolStripDropDownMenu(this, /*isAutoGenerated=*/true); } ////// Called by all constructors of ToolStripButton. /// private void Initialize() { SupportsSpaceKey = true; } ////// /// Overriden to invoke displaying the popup. /// protected override void OnMouseDown(MouseEventArgs e) { if ((Control.ModifierKeys != Keys.Alt) && (e.Button == MouseButtons.Left)) { if (DropDown.Visible) { ToolStripManager.ModalMenuFilter.CloseActiveDropDown(DropDown, ToolStripDropDownCloseReason.AppClicked); } else { // opening should happen on mouse down. Debug.Assert(ParentInternal != null, "Parent is null here, not going to get accurate ID"); openMouseId = (ParentInternal == null) ? (byte)0: ParentInternal.GetMouseId(); this.ShowDropDown(/*mousePush =*/true); } } base.OnMouseDown(e); } protected override void OnMouseUp(MouseEventArgs e) { if ((Control.ModifierKeys != Keys.Alt) && (e.Button == MouseButtons.Left)) { Debug.Assert(ParentInternal != null, "Parent is null here, not going to get accurate ID"); byte closeMouseId = (ParentInternal == null) ? (byte)0: ParentInternal.GetMouseId(); if (closeMouseId != openMouseId) { openMouseId = 0; // reset the mouse id, we should never get this value from toolstrip. ToolStripManager.ModalMenuFilter.CloseActiveDropDown(DropDown, ToolStripDropDownCloseReason.AppClicked); Select(); } } base.OnMouseUp(e); } protected override void OnMouseLeave(EventArgs e) { openMouseId = 0; // reset the mouse id, we should never get this value from toolstrip. base.OnMouseLeave(e); } ////// /// Inheriting classes should override this method to handle this event. /// protected override void OnPaint(System.Windows.Forms.PaintEventArgs e) { if (this.Owner != null) { ToolStripRenderer renderer = this.Renderer; Graphics g = e.Graphics; renderer.DrawDropDownButtonBackground(new ToolStripItemRenderEventArgs(e.Graphics, this)); if ((DisplayStyle & ToolStripItemDisplayStyle.Image) == ToolStripItemDisplayStyle.Image) { renderer.DrawItemImage(new ToolStripItemImageRenderEventArgs(g, this, InternalLayout.ImageRectangle)); } if ((DisplayStyle & ToolStripItemDisplayStyle.Text) == ToolStripItemDisplayStyle.Text) { renderer.DrawItemText(new ToolStripItemTextRenderEventArgs(g, this, this.Text, InternalLayout.TextRectangle, this.ForeColor, this.Font, InternalLayout.TextFormat)); } if (ShowDropDownArrow) { ToolStripDropDownButton.ToolStripDropDownButtonInternalLayout layout = InternalLayout as ToolStripDropDownButtonInternalLayout; Rectangle dropDownArrowRect = (layout != null) ? layout.DropDownArrowRect :Rectangle.Empty; Color arrowColor = Enabled ? SystemColors.ControlText : SystemColors.ControlDark; renderer.DrawArrow(new ToolStripArrowRenderEventArgs(g, this,dropDownArrowRect, arrowColor, ArrowDirection.Down)); } } } ///[UIPermission(SecurityAction.LinkDemand, Window=UIPermissionWindow.AllWindows)] [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1720:AvoidTypeNamesInParameters")] // 'charCode' matches control.cs protected internal override bool ProcessMnemonic(char charCode) { // checking IsMnemonic is not necesssary - toolstrip does this for us. if (HasDropDownItems) { Select(); ShowDropDown(); return true; } return false; } internal class ToolStripDropDownButtonInternalLayout : ToolStripItemInternalLayout { private ToolStripDropDownButton ownerItem; private static Size dropDownArrowSize = new Size(5,3); private static Padding dropDownArrowPadding = new Padding(2); private Rectangle dropDownArrowRect = Rectangle.Empty; public ToolStripDropDownButtonInternalLayout(ToolStripDropDownButton ownerItem) : base(ownerItem) { this.ownerItem = ownerItem; } public override Size GetPreferredSize(Size constrainingSize) { Size preferredSize = base.GetPreferredSize(constrainingSize); if (ownerItem.ShowDropDownArrow) { if (ownerItem.TextDirection == ToolStripTextDirection.Horizontal) { preferredSize.Width += DropDownArrowRect.Width + dropDownArrowPadding.Horizontal; } else { preferredSize.Height += DropDownArrowRect.Height + dropDownArrowPadding.Vertical; } } return preferredSize; } protected override ToolStripItemLayoutOptions CommonLayoutOptions() { ToolStripItemLayoutOptions options = base.CommonLayoutOptions(); if (ownerItem.ShowDropDownArrow) { if (ownerItem.TextDirection == ToolStripTextDirection.Horizontal) { // We're rendering horizontal.... make sure to take care of RTL issues. int widthOfDropDown = dropDownArrowSize.Width + dropDownArrowPadding.Horizontal; options.client.Width -= widthOfDropDown; if (ownerItem.RightToLeft == RightToLeft.Yes) { // if RightToLeft.Yes: [ v | rest of drop down button ] options.client.Offset(widthOfDropDown, 0); dropDownArrowRect = new Rectangle(dropDownArrowPadding.Left,0, dropDownArrowSize.Width, ownerItem.Bounds.Height); } else { // if RightToLeft.No [ rest of drop down button | v ] dropDownArrowRect = new Rectangle(options.client.Right,0, dropDownArrowSize.Width, ownerItem.Bounds.Height); } } else { // else we're rendering vertically. int heightOfDropDown = dropDownArrowSize.Height + dropDownArrowPadding.Vertical; options.client.Height -= heightOfDropDown; // [ rest of button / v] dropDownArrowRect = new Rectangle(0,options.client.Bottom + dropDownArrowPadding.Top, ownerItem.Bounds.Width-1, dropDownArrowSize.Height); } } return options; } public Rectangle DropDownArrowRect { get { return dropDownArrowRect; } } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ // // Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Windows.Forms { using System; using System.Collections; using System.ComponentModel; using System.Drawing; using Microsoft.Win32; using System.Drawing.Imaging; using System.Threading; using System.Diagnostics; using System.Windows.Forms.ButtonInternal; using System.Windows.Forms.Layout; using System.Security.Permissions; using System.Security; using System.Windows.Forms.Design; ////// /// A ToolStripButton that can display a popup. /// [ToolStripItemDesignerAvailability(ToolStripItemDesignerAvailability.ToolStrip | ToolStripItemDesignerAvailability.StatusStrip)] public class ToolStripDropDownButton : ToolStripDropDownItem { private bool showDropDownArrow = true; private byte openMouseId = 0; ////// /// Constructs a ToolStripButton that can display a popup. /// public ToolStripDropDownButton() { Initialize(); } public ToolStripDropDownButton(string text):base(text,null,(EventHandler)null) { Initialize(); } public ToolStripDropDownButton(Image image):base(null,image,(EventHandler)null) { Initialize(); } public ToolStripDropDownButton(string text, Image image):base(text,image,(EventHandler)null) { Initialize(); } public ToolStripDropDownButton(string text, Image image, EventHandler onClick):base(text,image,onClick) { Initialize(); } public ToolStripDropDownButton(string text, Image image, EventHandler onClick, string name) :base(text,image,onClick,name){ Initialize(); } public ToolStripDropDownButton(string text, Image image, params ToolStripItem[] dropDownItems):base(text,image,dropDownItems) { Initialize(); } [DefaultValue(true)] public new bool AutoToolTip { get { return base.AutoToolTip; } set { base.AutoToolTip = value; } } protected override bool DefaultAutoToolTip { get { return true; } } ///[ DefaultValue(true), SRDescription(SR.ToolStripDropDownButtonShowDropDownArrowDescr), SRCategory(SR.CatAppearance) ] public bool ShowDropDownArrow { get { return showDropDownArrow; } set { if (showDropDownArrow != value) { showDropDownArrow = value; this.InvalidateItemLayout(PropertyNames.ShowDropDownArrow); } } } /// /// Creates an instance of the object that defines how image and text /// gets laid out in the ToolStripItem /// internal override ToolStripItemInternalLayout CreateInternalLayout() { return new ToolStripDropDownButtonInternalLayout(this); } protected override ToolStripDropDown CreateDefaultDropDown() { // AutoGenerate a Winbar DropDown - set the property so we hook events return new ToolStripDropDownMenu(this, /*isAutoGenerated=*/true); } ////// Called by all constructors of ToolStripButton. /// private void Initialize() { SupportsSpaceKey = true; } ////// /// Overriden to invoke displaying the popup. /// protected override void OnMouseDown(MouseEventArgs e) { if ((Control.ModifierKeys != Keys.Alt) && (e.Button == MouseButtons.Left)) { if (DropDown.Visible) { ToolStripManager.ModalMenuFilter.CloseActiveDropDown(DropDown, ToolStripDropDownCloseReason.AppClicked); } else { // opening should happen on mouse down. Debug.Assert(ParentInternal != null, "Parent is null here, not going to get accurate ID"); openMouseId = (ParentInternal == null) ? (byte)0: ParentInternal.GetMouseId(); this.ShowDropDown(/*mousePush =*/true); } } base.OnMouseDown(e); } protected override void OnMouseUp(MouseEventArgs e) { if ((Control.ModifierKeys != Keys.Alt) && (e.Button == MouseButtons.Left)) { Debug.Assert(ParentInternal != null, "Parent is null here, not going to get accurate ID"); byte closeMouseId = (ParentInternal == null) ? (byte)0: ParentInternal.GetMouseId(); if (closeMouseId != openMouseId) { openMouseId = 0; // reset the mouse id, we should never get this value from toolstrip. ToolStripManager.ModalMenuFilter.CloseActiveDropDown(DropDown, ToolStripDropDownCloseReason.AppClicked); Select(); } } base.OnMouseUp(e); } protected override void OnMouseLeave(EventArgs e) { openMouseId = 0; // reset the mouse id, we should never get this value from toolstrip. base.OnMouseLeave(e); } ////// /// Inheriting classes should override this method to handle this event. /// protected override void OnPaint(System.Windows.Forms.PaintEventArgs e) { if (this.Owner != null) { ToolStripRenderer renderer = this.Renderer; Graphics g = e.Graphics; renderer.DrawDropDownButtonBackground(new ToolStripItemRenderEventArgs(e.Graphics, this)); if ((DisplayStyle & ToolStripItemDisplayStyle.Image) == ToolStripItemDisplayStyle.Image) { renderer.DrawItemImage(new ToolStripItemImageRenderEventArgs(g, this, InternalLayout.ImageRectangle)); } if ((DisplayStyle & ToolStripItemDisplayStyle.Text) == ToolStripItemDisplayStyle.Text) { renderer.DrawItemText(new ToolStripItemTextRenderEventArgs(g, this, this.Text, InternalLayout.TextRectangle, this.ForeColor, this.Font, InternalLayout.TextFormat)); } if (ShowDropDownArrow) { ToolStripDropDownButton.ToolStripDropDownButtonInternalLayout layout = InternalLayout as ToolStripDropDownButtonInternalLayout; Rectangle dropDownArrowRect = (layout != null) ? layout.DropDownArrowRect :Rectangle.Empty; Color arrowColor = Enabled ? SystemColors.ControlText : SystemColors.ControlDark; renderer.DrawArrow(new ToolStripArrowRenderEventArgs(g, this,dropDownArrowRect, arrowColor, ArrowDirection.Down)); } } } ///[UIPermission(SecurityAction.LinkDemand, Window=UIPermissionWindow.AllWindows)] [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1720:AvoidTypeNamesInParameters")] // 'charCode' matches control.cs protected internal override bool ProcessMnemonic(char charCode) { // checking IsMnemonic is not necesssary - toolstrip does this for us. if (HasDropDownItems) { Select(); ShowDropDown(); return true; } return false; } internal class ToolStripDropDownButtonInternalLayout : ToolStripItemInternalLayout { private ToolStripDropDownButton ownerItem; private static Size dropDownArrowSize = new Size(5,3); private static Padding dropDownArrowPadding = new Padding(2); private Rectangle dropDownArrowRect = Rectangle.Empty; public ToolStripDropDownButtonInternalLayout(ToolStripDropDownButton ownerItem) : base(ownerItem) { this.ownerItem = ownerItem; } public override Size GetPreferredSize(Size constrainingSize) { Size preferredSize = base.GetPreferredSize(constrainingSize); if (ownerItem.ShowDropDownArrow) { if (ownerItem.TextDirection == ToolStripTextDirection.Horizontal) { preferredSize.Width += DropDownArrowRect.Width + dropDownArrowPadding.Horizontal; } else { preferredSize.Height += DropDownArrowRect.Height + dropDownArrowPadding.Vertical; } } return preferredSize; } protected override ToolStripItemLayoutOptions CommonLayoutOptions() { ToolStripItemLayoutOptions options = base.CommonLayoutOptions(); if (ownerItem.ShowDropDownArrow) { if (ownerItem.TextDirection == ToolStripTextDirection.Horizontal) { // We're rendering horizontal.... make sure to take care of RTL issues. int widthOfDropDown = dropDownArrowSize.Width + dropDownArrowPadding.Horizontal; options.client.Width -= widthOfDropDown; if (ownerItem.RightToLeft == RightToLeft.Yes) { // if RightToLeft.Yes: [ v | rest of drop down button ] options.client.Offset(widthOfDropDown, 0); dropDownArrowRect = new Rectangle(dropDownArrowPadding.Left,0, dropDownArrowSize.Width, ownerItem.Bounds.Height); } else { // if RightToLeft.No [ rest of drop down button | v ] dropDownArrowRect = new Rectangle(options.client.Right,0, dropDownArrowSize.Width, ownerItem.Bounds.Height); } } else { // else we're rendering vertically. int heightOfDropDown = dropDownArrowSize.Height + dropDownArrowPadding.Vertical; options.client.Height -= heightOfDropDown; // [ rest of button / v] dropDownArrowRect = new Rectangle(0,options.client.Bottom + dropDownArrowPadding.Top, ownerItem.Bounds.Width-1, dropDownArrowSize.Height); } } return options; } public Rectangle DropDownArrowRect { get { return dropDownArrowRect; } } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- PartitionedDataSource.cs
- HttpListenerRequest.cs
- AxisAngleRotation3D.cs
- UserCancellationException.cs
- HttpListenerResponse.cs
- Section.cs
- DelegatingConfigHost.cs
- TypeBuilder.cs
- MediaSystem.cs
- _NtlmClient.cs
- CacheHelper.cs
- Stroke2.cs
- EventLogEntry.cs
- DbSourceParameterCollection.cs
- DeploymentSection.cs
- DataGridViewRowsAddedEventArgs.cs
- SqlCacheDependency.cs
- AutomationEventArgs.cs
- RequestNavigateEventArgs.cs
- SqlDataSourceSummaryPanel.cs
- GeneralTransform2DTo3DTo2D.cs
- CodeTypeOfExpression.cs
- DataGridViewRowHeightInfoNeededEventArgs.cs
- SqlWriter.cs
- UserControlFileEditor.cs
- OdbcEnvironment.cs
- Popup.cs
- IntersectQueryOperator.cs
- TypeListConverter.cs
- TypeToTreeConverter.cs
- DbConnectionFactory.cs
- ExtensibleClassFactory.cs
- XPathDescendantIterator.cs
- PackageRelationshipCollection.cs
- ArrayWithOffset.cs
- NamespaceCollection.cs
- BindingEntityInfo.cs
- WeakKeyDictionary.cs
- Evidence.cs
- ClientScriptItem.cs
- DrawingContextWalker.cs
- ReadOnlyCollectionBase.cs
- ProcessHostMapPath.cs
- CharEntityEncoderFallback.cs
- WeakReference.cs
- ContainerVisual.cs
- ModelChangedEventArgsImpl.cs
- CatalogZoneBase.cs
- QueryContinueDragEvent.cs
- ISCIIEncoding.cs
- XPathNavigator.cs
- XhtmlBasicLabelAdapter.cs
- DecimalAnimation.cs
- CellParaClient.cs
- FormatException.cs
- TextChange.cs
- GridView.cs
- WeakReferenceList.cs
- StringValidatorAttribute.cs
- GetBrowserTokenRequest.cs
- Brush.cs
- ClientTarget.cs
- CompareValidator.cs
- ListViewDeletedEventArgs.cs
- DataFormat.cs
- ReachDocumentReferenceCollectionSerializerAsync.cs
- Focus.cs
- ProviderSettingsCollection.cs
- ImageSource.cs
- PlainXmlSerializer.cs
- XmlAttributeOverrides.cs
- SqlUDTStorage.cs
- SqlWebEventProvider.cs
- EntityClassGenerator.cs
- DataGridToolTip.cs
- DataPointer.cs
- SQLInt16Storage.cs
- ScrollProviderWrapper.cs
- DBConcurrencyException.cs
- FolderBrowserDialog.cs
- TextTreeObjectNode.cs
- ListItemConverter.cs
- TiffBitmapEncoder.cs
- LicFileLicenseProvider.cs
- AppDomain.cs
- CodeGroup.cs
- InputDevice.cs
- ChildDocumentBlock.cs
- CommandDesigner.cs
- GridViewRowEventArgs.cs
- Expr.cs
- WrapperEqualityComparer.cs
- sqlser.cs
- OleAutBinder.cs
- RectConverter.cs
- Transform3DCollection.cs
- MarkupExtensionReturnTypeAttribute.cs
- IdnMapping.cs
- ObjectDataSource.cs
- DesignerCategoryAttribute.cs