Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / 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
- XmlWrappingReader.cs
- XmlSchemaSimpleTypeRestriction.cs
- SHA1.cs
- CopyEncoder.cs
- _FixedSizeReader.cs
- ObjectDataSourceStatusEventArgs.cs
- BitmapDecoder.cs
- NetworkInformationException.cs
- UserPersonalizationStateInfo.cs
- MenuItemBindingCollection.cs
- StrokeSerializer.cs
- SelectionListComponentEditor.cs
- ClockGroup.cs
- DataObjectPastingEventArgs.cs
- Propagator.cs
- CornerRadiusConverter.cs
- StreamWithDictionary.cs
- ResourceCategoryAttribute.cs
- ArrayExtension.cs
- PackageProperties.cs
- SimpleRecyclingCache.cs
- UnsafeNativeMethods.cs
- QuaternionKeyFrameCollection.cs
- ZipIOLocalFileBlock.cs
- RecordsAffectedEventArgs.cs
- Oid.cs
- PtsHost.cs
- EventItfInfo.cs
- UpdatePanelControlTrigger.cs
- SqlParameter.cs
- XsdCachingReader.cs
- DetailsViewPagerRow.cs
- log.cs
- DatagramAdapter.cs
- SvcMapFileSerializer.cs
- FontWeight.cs
- GridViewSortEventArgs.cs
- XPathDocumentBuilder.cs
- ListViewTableCell.cs
- COAUTHINFO.cs
- ReceiveSecurityHeader.cs
- DateRangeEvent.cs
- AbsoluteQuery.cs
- FileDialogPermission.cs
- InstanceKeyCompleteException.cs
- BeginStoryboard.cs
- InvalidOleVariantTypeException.cs
- DynamicRendererThreadManager.cs
- OrderedDictionary.cs
- TemplateColumn.cs
- DesignerVerbCollection.cs
- ToolStripContentPanel.cs
- DebugViewWriter.cs
- PageCache.cs
- HelloMessageCD1.cs
- AppSettingsExpressionBuilder.cs
- BitmapCodecInfoInternal.cs
- RegionIterator.cs
- ProtocolElementCollection.cs
- RectangleGeometry.cs
- DataGridColumnCollection.cs
- UpDownEvent.cs
- XmlIlGenerator.cs
- InheritablePropertyChangeInfo.cs
- LayoutEngine.cs
- ELinqQueryState.cs
- BitmapEffectGroup.cs
- TablePattern.cs
- ReflectTypeDescriptionProvider.cs
- HasCopySemanticsAttribute.cs
- DbMetaDataCollectionNames.cs
- Section.cs
- AudioFormatConverter.cs
- StoreAnnotationsMap.cs
- XPathSingletonIterator.cs
- SecurityPermission.cs
- HScrollBar.cs
- CompiledIdentityConstraint.cs
- DataGridViewCellValueEventArgs.cs
- AssemblyHelper.cs
- FrameworkTextComposition.cs
- ReliableRequestSessionChannel.cs
- DataFormats.cs
- LoginName.cs
- UidManager.cs
- ParserContext.cs
- QuaternionConverter.cs
- DataTableClearEvent.cs
- CursorConverter.cs
- TraceUtils.cs
- Walker.cs
- WindowPattern.cs
- ThreadStartException.cs
- MenuItemCollectionEditorDialog.cs
- GeneralTransformCollection.cs
- _ProxyChain.cs
- TCPClient.cs
- PlainXmlWriter.cs
- ListControl.cs
- ActivationServices.cs