Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / WinForms / Managed / System / WinForms / ToolStripScrollButton.cs / 1 / ToolStripScrollButton.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Windows.Forms { using System; using System.ComponentModel; using System.Drawing; using System.Drawing.Design; using System.Diagnostics; using System.Windows.Forms.ButtonInternal; using System.Security.Permissions; using System.Security; ////// /// A non selectable winbar item /// internal class ToolStripScrollButton : ToolStripControlHost { private bool up = true; [ThreadStatic] private static Bitmap upScrollImage; [ThreadStatic] private static Bitmap downScrollImage; const int AUTOSCROLL_UPDATE = 50; private static readonly int AUTOSCROLL_PAUSE = SystemInformation.DoubleClickTime; private Timer mouseDownTimer; public ToolStripScrollButton(bool up) : base(CreateControlInstance(up)) { this.up = up; } private static Control CreateControlInstance(bool up) { StickyLabel label = new StickyLabel(); label.ImageAlign = ContentAlignment.MiddleCenter; label.Image = (up) ? UpImage : DownImage; return label; } ////// Deriving classes can override this to configure a default size for their control. /// This is more efficient than setting the size in the control's constructor. /// protected internal override Padding DefaultMargin { get { return Padding.Empty; } } protected override Padding DefaultPadding { get { return Padding.Empty; } } private static Image DownImage { get { if (downScrollImage == null) { downScrollImage = new Bitmap(typeof(ToolStripScrollButton), "ScrollButtonDown.bmp"); downScrollImage.MakeTransparent(Color.White); } return downScrollImage; } } internal StickyLabel Label { get{ return Control as StickyLabel; } } private static Image UpImage { get { if (upScrollImage == null) { upScrollImage = new Bitmap(typeof(ToolStripScrollButton), "ScrollButtonUp.bmp"); upScrollImage.MakeTransparent(Color.White); } return upScrollImage; } } private Timer MouseDownTimer { get{ if (mouseDownTimer == null) { mouseDownTimer = new Timer(); } return mouseDownTimer; } } protected override void Dispose(bool disposing) { if (disposing) { if (mouseDownTimer != null) { mouseDownTimer.Enabled = false; mouseDownTimer.Dispose(); mouseDownTimer = null; } } base.Dispose(disposing); } protected override void OnMouseDown (MouseEventArgs e) { UnsubscribeAll(); base.OnMouseDown(e); Scroll(); MouseDownTimer.Interval = AUTOSCROLL_PAUSE; MouseDownTimer.Tick += new EventHandler(OnInitialAutoScrollMouseDown); MouseDownTimer.Enabled = true; } protected override void OnMouseUp (MouseEventArgs e) { UnsubscribeAll(); base.OnMouseUp(e); } protected override void OnMouseLeave (EventArgs e) { UnsubscribeAll(); } private void UnsubscribeAll() { MouseDownTimer.Enabled = false; MouseDownTimer.Tick -= new EventHandler(OnInitialAutoScrollMouseDown); MouseDownTimer.Tick -= new EventHandler(OnAutoScrollAccellerate); } private void OnAutoScrollAccellerate(object sender, EventArgs e) { Scroll(); } private void OnInitialAutoScrollMouseDown(object sender, EventArgs e) { MouseDownTimer.Tick -= new EventHandler(OnInitialAutoScrollMouseDown); Scroll(); MouseDownTimer.Interval = AUTOSCROLL_UPDATE; MouseDownTimer.Tick += new EventHandler(OnAutoScrollAccellerate); } public override Size GetPreferredSize(Size constrainingSize) { Size preferredSize = Size.Empty; preferredSize.Height = (Label.Image != null) ? Label.Image.Height + 4 : 0; preferredSize.Width = (ParentInternal != null) ? ParentInternal.Width - 2 : preferredSize.Width; // Two for border return preferredSize; } private void Scroll() { ToolStripDropDownMenu parent = this.ParentInternal as ToolStripDropDownMenu; if (parent != null && Label.Enabled) { parent.ScrollInternal(up); } } internal class StickyLabel : Label { public StickyLabel() { } private bool freezeLocationChange = false; public bool FreezeLocationChange { get { return freezeLocationChange; } } protected override void SetBoundsCore(int x,int y,int width, int height, BoundsSpecified specified) { if (((specified & BoundsSpecified.Location) != 0) && FreezeLocationChange) { return; } base.SetBoundsCore(x, y, width, height, specified); } [SecurityPermission(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.UnmanagedCode)] protected override void WndProc(ref Message m) { if (m.Msg >= NativeMethods.WM_KEYFIRST && m.Msg <= NativeMethods.WM_KEYLAST) { // SECREVIEW: // NOTE this is the same as ToolStripDropDown, except we NEVER want to raise the key events. DefWndProc(ref m); return; } base.WndProc(ref m); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Windows.Forms { using System; using System.ComponentModel; using System.Drawing; using System.Drawing.Design; using System.Diagnostics; using System.Windows.Forms.ButtonInternal; using System.Security.Permissions; using System.Security; ////// /// A non selectable winbar item /// internal class ToolStripScrollButton : ToolStripControlHost { private bool up = true; [ThreadStatic] private static Bitmap upScrollImage; [ThreadStatic] private static Bitmap downScrollImage; const int AUTOSCROLL_UPDATE = 50; private static readonly int AUTOSCROLL_PAUSE = SystemInformation.DoubleClickTime; private Timer mouseDownTimer; public ToolStripScrollButton(bool up) : base(CreateControlInstance(up)) { this.up = up; } private static Control CreateControlInstance(bool up) { StickyLabel label = new StickyLabel(); label.ImageAlign = ContentAlignment.MiddleCenter; label.Image = (up) ? UpImage : DownImage; return label; } ////// Deriving classes can override this to configure a default size for their control. /// This is more efficient than setting the size in the control's constructor. /// protected internal override Padding DefaultMargin { get { return Padding.Empty; } } protected override Padding DefaultPadding { get { return Padding.Empty; } } private static Image DownImage { get { if (downScrollImage == null) { downScrollImage = new Bitmap(typeof(ToolStripScrollButton), "ScrollButtonDown.bmp"); downScrollImage.MakeTransparent(Color.White); } return downScrollImage; } } internal StickyLabel Label { get{ return Control as StickyLabel; } } private static Image UpImage { get { if (upScrollImage == null) { upScrollImage = new Bitmap(typeof(ToolStripScrollButton), "ScrollButtonUp.bmp"); upScrollImage.MakeTransparent(Color.White); } return upScrollImage; } } private Timer MouseDownTimer { get{ if (mouseDownTimer == null) { mouseDownTimer = new Timer(); } return mouseDownTimer; } } protected override void Dispose(bool disposing) { if (disposing) { if (mouseDownTimer != null) { mouseDownTimer.Enabled = false; mouseDownTimer.Dispose(); mouseDownTimer = null; } } base.Dispose(disposing); } protected override void OnMouseDown (MouseEventArgs e) { UnsubscribeAll(); base.OnMouseDown(e); Scroll(); MouseDownTimer.Interval = AUTOSCROLL_PAUSE; MouseDownTimer.Tick += new EventHandler(OnInitialAutoScrollMouseDown); MouseDownTimer.Enabled = true; } protected override void OnMouseUp (MouseEventArgs e) { UnsubscribeAll(); base.OnMouseUp(e); } protected override void OnMouseLeave (EventArgs e) { UnsubscribeAll(); } private void UnsubscribeAll() { MouseDownTimer.Enabled = false; MouseDownTimer.Tick -= new EventHandler(OnInitialAutoScrollMouseDown); MouseDownTimer.Tick -= new EventHandler(OnAutoScrollAccellerate); } private void OnAutoScrollAccellerate(object sender, EventArgs e) { Scroll(); } private void OnInitialAutoScrollMouseDown(object sender, EventArgs e) { MouseDownTimer.Tick -= new EventHandler(OnInitialAutoScrollMouseDown); Scroll(); MouseDownTimer.Interval = AUTOSCROLL_UPDATE; MouseDownTimer.Tick += new EventHandler(OnAutoScrollAccellerate); } public override Size GetPreferredSize(Size constrainingSize) { Size preferredSize = Size.Empty; preferredSize.Height = (Label.Image != null) ? Label.Image.Height + 4 : 0; preferredSize.Width = (ParentInternal != null) ? ParentInternal.Width - 2 : preferredSize.Width; // Two for border return preferredSize; } private void Scroll() { ToolStripDropDownMenu parent = this.ParentInternal as ToolStripDropDownMenu; if (parent != null && Label.Enabled) { parent.ScrollInternal(up); } } internal class StickyLabel : Label { public StickyLabel() { } private bool freezeLocationChange = false; public bool FreezeLocationChange { get { return freezeLocationChange; } } protected override void SetBoundsCore(int x,int y,int width, int height, BoundsSpecified specified) { if (((specified & BoundsSpecified.Location) != 0) && FreezeLocationChange) { return; } base.SetBoundsCore(x, y, width, height, specified); } [SecurityPermission(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.UnmanagedCode)] protected override void WndProc(ref Message m) { if (m.Msg >= NativeMethods.WM_KEYFIRST && m.Msg <= NativeMethods.WM_KEYLAST) { // SECREVIEW: // NOTE this is the same as ToolStripDropDown, except we NEVER want to raise the key events. DefWndProc(ref m); return; } base.WndProc(ref m); } } } } // 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
- SecurityPermission.cs
- FunctionDescription.cs
- ValidateNames.cs
- TemplateBindingExpressionConverter.cs
- ThousandthOfEmRealPoints.cs
- BigInt.cs
- ValidatorUtils.cs
- TreeView.cs
- EditorZoneBase.cs
- SymbolTable.cs
- NetTcpSecurityElement.cs
- TextPointer.cs
- __Filters.cs
- TypeFieldSchema.cs
- SQLInt32.cs
- ResourceDescriptionAttribute.cs
- Int32CollectionValueSerializer.cs
- SortExpressionBuilder.cs
- OracleConnectionStringBuilder.cs
- Privilege.cs
- Descriptor.cs
- RuntimeConfigLKG.cs
- CompositeFontParser.cs
- ToolboxItem.cs
- MaskedTextBox.cs
- Attributes.cs
- RecordBuilder.cs
- VisualTarget.cs
- UnauthorizedWebPart.cs
- NextPreviousPagerField.cs
- Nodes.cs
- XmlUtil.cs
- _Win32.cs
- ItemDragEvent.cs
- HttpServerVarsCollection.cs
- SplitContainer.cs
- ToolZone.cs
- StringToken.cs
- HttpHandlersSection.cs
- WorkflowApplicationUnhandledExceptionEventArgs.cs
- MouseButton.cs
- SafeHandles.cs
- PersonalizationDictionary.cs
- SettingsProviderCollection.cs
- UrlAuthFailedErrorFormatter.cs
- HostedNamedPipeTransportManager.cs
- CodeAccessSecurityEngine.cs
- DrawingBrush.cs
- DSASignatureDeformatter.cs
- SignedXml.cs
- TextParagraphProperties.cs
- MobileContainerDesigner.cs
- ParentQuery.cs
- DBBindings.cs
- CalendarBlackoutDatesCollection.cs
- RemotingHelper.cs
- MaterialGroup.cs
- RelativeSource.cs
- StreamHelper.cs
- OdbcError.cs
- XmlILAnnotation.cs
- ControlSerializer.cs
- PlanCompiler.cs
- XmlValidatingReader.cs
- DeferrableContent.cs
- CqlWriter.cs
- SQLDecimal.cs
- MetadataUtilsSmi.cs
- ConfigXmlComment.cs
- ContextActivityUtils.cs
- BridgeDataReader.cs
- UpdateTracker.cs
- dataobject.cs
- BamlLocalizableResourceKey.cs
- NavigatorInput.cs
- WpfGeneratedKnownTypes.cs
- TriState.cs
- DataColumnMappingCollection.cs
- autovalidator.cs
- cookiecollection.cs
- WebEventCodes.cs
- RelatedEnd.cs
- InitializerFacet.cs
- NativeActivityMetadata.cs
- XmlSerializationReader.cs
- SamlSecurityTokenAuthenticator.cs
- XamlReaderHelper.cs
- DynamicPropertyHolder.cs
- SecurityException.cs
- SQLBinaryStorage.cs
- PrePostDescendentsWalker.cs
- CacheForPrimitiveTypes.cs
- HttpApplicationStateBase.cs
- ConfigurationStrings.cs
- WorkflowMessageEventHandler.cs
- GroupBox.cs
- DurableInstanceProvider.cs
- ArgumentException.cs
- EmbeddedMailObjectsCollection.cs
- Table.cs