Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / WinForms / Managed / System / WinForms / CheckBoxRenderer.cs / 1 / CheckBoxRenderer.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Windows.Forms { using System; using System.Drawing; using System.Diagnostics.CodeAnalysis; using System.Windows.Forms.Internal; using System.Windows.Forms.VisualStyles; using Microsoft.Win32; ////// /// public sealed class CheckBoxRenderer { //Make this per-thread, so that different threads can safely use these methods. [ThreadStatic] private static VisualStyleRenderer visualStyleRenderer = null; private static readonly VisualStyleElement CheckBoxElement = VisualStyleElement.Button.CheckBox.UncheckedNormal; private static bool renderMatchingApplicationState = true; //cannot instantiate private CheckBoxRenderer() { } ////// This is a rendering class for the CheckBox control. It works downlevel too (obviously /// without visual styles applied.) /// ////// /// public static bool RenderMatchingApplicationState { get { return renderMatchingApplicationState; } set { renderMatchingApplicationState = value; } } private static bool RenderWithVisualStyles { get { return (!renderMatchingApplicationState || Application.RenderWithVisualStyles); } } ////// If this property is true, then the renderer will use the setting from Application.RenderWithVisualStyles to /// determine how to render. /// If this property is false, the renderer will always render with visualstyles. /// ////// /// public static bool IsBackgroundPartiallyTransparent(CheckBoxState state) { if (RenderWithVisualStyles) { InitializeRenderer((int)state); return visualStyleRenderer.IsBackgroundPartiallyTransparent(); } else { return false; //for downlevel, this is false } } ////// Returns true if the background corresponding to the given state is partially transparent, else false. /// ////// /// [ SuppressMessage("Microsoft.Design", "CA1011:ConsiderPassingBaseTypesAsParameters") // Using Graphics instead of IDeviceContext intentionally ] public static void DrawParentBackground(Graphics g, Rectangle bounds, Control childControl) { if (RenderWithVisualStyles) { InitializeRenderer(0); visualStyleRenderer.DrawParentBackground(g, bounds, childControl); } } ////// This is just a convenience wrapper for VisualStyleRenderer.DrawThemeParentBackground. For downlevel, /// this isn't required and does nothing. /// ////// /// public static void DrawCheckBox(Graphics g, Point glyphLocation, CheckBoxState state) { Rectangle glyphBounds = new Rectangle(glyphLocation, GetGlyphSize(g, state)); if (RenderWithVisualStyles) { InitializeRenderer((int)state); visualStyleRenderer.DrawBackground(g, glyphBounds); } else { if (IsMixed(state)) { ControlPaint.DrawMixedCheckBox(g, glyphBounds, ConvertToButtonState(state)); } else { ControlPaint.DrawCheckBox(g, glyphBounds, ConvertToButtonState(state)); } } } ////// Renders a CheckBox control. /// ////// /// public static void DrawCheckBox(Graphics g, Point glyphLocation, Rectangle textBounds, string checkBoxText, Font font, bool focused, CheckBoxState state) { DrawCheckBox(g, glyphLocation, textBounds, checkBoxText, font, TextFormatFlags.HorizontalCenter | TextFormatFlags.VerticalCenter | TextFormatFlags.SingleLine, focused, state); } ////// Renders a CheckBox control. /// ////// /// public static void DrawCheckBox(Graphics g, Point glyphLocation, Rectangle textBounds, string checkBoxText, Font font, TextFormatFlags flags, bool focused, CheckBoxState state) { Rectangle glyphBounds = new Rectangle(glyphLocation, GetGlyphSize(g, state)); Color textColor; if (RenderWithVisualStyles) { InitializeRenderer((int)state); visualStyleRenderer.DrawBackground(g, glyphBounds); textColor = visualStyleRenderer.GetColor(ColorProperty.TextColor); } else { if (IsMixed(state)) { ControlPaint.DrawMixedCheckBox(g, glyphBounds, ConvertToButtonState(state)); } else { ControlPaint.DrawCheckBox(g, glyphBounds, ConvertToButtonState(state)); } textColor = SystemColors.ControlText; } TextRenderer.DrawText(g, checkBoxText, font, textBounds, textColor, flags); if (focused) { ControlPaint.DrawFocusRectangle(g, textBounds); } } ////// Renders a CheckBox control. /// ////// /// public static void DrawCheckBox(Graphics g, Point glyphLocation, Rectangle textBounds, string checkBoxText, Font font, Image image, Rectangle imageBounds, bool focused, CheckBoxState state) { DrawCheckBox(g, glyphLocation, textBounds, checkBoxText, font, TextFormatFlags.HorizontalCenter | TextFormatFlags.VerticalCenter | TextFormatFlags.SingleLine, image, imageBounds, focused, state); } ////// Renders a CheckBox control. /// ////// /// public static void DrawCheckBox(Graphics g, Point glyphLocation, Rectangle textBounds, string checkBoxText, Font font, TextFormatFlags flags, Image image, Rectangle imageBounds, bool focused, CheckBoxState state) { Rectangle glyphBounds = new Rectangle(glyphLocation, GetGlyphSize(g, state)); Color textColor; if (RenderWithVisualStyles) { InitializeRenderer((int)state); //Keep this drawing order! It matches default drawing order. visualStyleRenderer.DrawImage(g, imageBounds, image); visualStyleRenderer.DrawBackground(g, glyphBounds); textColor = visualStyleRenderer.GetColor(ColorProperty.TextColor); } else { g.DrawImage(image, imageBounds); if (IsMixed(state)) { ControlPaint.DrawMixedCheckBox(g, glyphBounds, ConvertToButtonState(state)); } else { ControlPaint.DrawCheckBox(g, glyphBounds, ConvertToButtonState(state)); } textColor = SystemColors.ControlText; } TextRenderer.DrawText(g, checkBoxText, font, textBounds, textColor, flags); if (focused) { ControlPaint.DrawFocusRectangle(g, textBounds); } } ////// Renders a CheckBox control. /// ////// /// [ SuppressMessage("Microsoft.Design", "CA1011:ConsiderPassingBaseTypesAsParameters") // Using Graphics instead of IDeviceContext intentionally ] public static Size GetGlyphSize(Graphics g, CheckBoxState state) { if (RenderWithVisualStyles) { InitializeRenderer((int)state); return visualStyleRenderer.GetPartSize(g, ThemeSizeType.Draw); } return new Size(13, 13); } internal static ButtonState ConvertToButtonState(CheckBoxState state) { switch (state) { case CheckBoxState.CheckedNormal: case CheckBoxState.CheckedHot: return ButtonState.Checked; case CheckBoxState.CheckedPressed: return (ButtonState.Checked | ButtonState.Pushed); case CheckBoxState.CheckedDisabled: return (ButtonState.Checked | ButtonState.Inactive); case CheckBoxState.UncheckedPressed: return ButtonState.Pushed; case CheckBoxState.UncheckedDisabled: return ButtonState.Inactive; //Downlevel mixed drawing works only if ButtonState.Checked is set case CheckBoxState.MixedNormal: case CheckBoxState.MixedHot: return ButtonState.Checked; case CheckBoxState.MixedPressed: return (ButtonState.Checked | ButtonState.Pushed); case CheckBoxState.MixedDisabled: return (ButtonState.Checked | ButtonState.Inactive); default: return ButtonState.Normal; } } internal static CheckBoxState ConvertFromButtonState(ButtonState state, bool isMixed, bool isHot) { if (isMixed) { if ((state & ButtonState.Pushed) == ButtonState.Pushed) { return CheckBoxState.MixedPressed; } else if ((state & ButtonState.Inactive) == ButtonState.Inactive) { return CheckBoxState.MixedDisabled; } else if (isHot) { return CheckBoxState.MixedHot; } return CheckBoxState.MixedNormal; } else if ((state & ButtonState.Checked) == ButtonState.Checked) { if ((state & ButtonState.Pushed) == ButtonState.Pushed) { return CheckBoxState.CheckedPressed; } else if ((state & ButtonState.Inactive) == ButtonState.Inactive) { return CheckBoxState.CheckedDisabled; } else if (isHot) { return CheckBoxState.CheckedHot; } return CheckBoxState.CheckedNormal; } else { //unchecked if ((state & ButtonState.Pushed) == ButtonState.Pushed) { return CheckBoxState.UncheckedPressed; } else if ((state & ButtonState.Inactive) == ButtonState.Inactive) { return CheckBoxState.UncheckedDisabled; } else if (isHot) { return CheckBoxState.UncheckedHot; } return CheckBoxState.UncheckedNormal; } } private static bool IsMixed(CheckBoxState state) { switch (state) { case CheckBoxState.MixedNormal: case CheckBoxState.MixedHot: case CheckBoxState.MixedPressed: case CheckBoxState.MixedDisabled: return true; default: return false; } } private static void InitializeRenderer(int state) { if (visualStyleRenderer == null) { visualStyleRenderer = new VisualStyleRenderer(CheckBoxElement.ClassName, CheckBoxElement.Part, state); } else { visualStyleRenderer.SetParameters(CheckBoxElement.ClassName, CheckBoxElement.Part, state); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ ///// Returns the size of the CheckBox glyph. /// ///// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Windows.Forms { using System; using System.Drawing; using System.Diagnostics.CodeAnalysis; using System.Windows.Forms.Internal; using System.Windows.Forms.VisualStyles; using Microsoft.Win32; ////// /// public sealed class CheckBoxRenderer { //Make this per-thread, so that different threads can safely use these methods. [ThreadStatic] private static VisualStyleRenderer visualStyleRenderer = null; private static readonly VisualStyleElement CheckBoxElement = VisualStyleElement.Button.CheckBox.UncheckedNormal; private static bool renderMatchingApplicationState = true; //cannot instantiate private CheckBoxRenderer() { } ////// This is a rendering class for the CheckBox control. It works downlevel too (obviously /// without visual styles applied.) /// ////// /// public static bool RenderMatchingApplicationState { get { return renderMatchingApplicationState; } set { renderMatchingApplicationState = value; } } private static bool RenderWithVisualStyles { get { return (!renderMatchingApplicationState || Application.RenderWithVisualStyles); } } ////// If this property is true, then the renderer will use the setting from Application.RenderWithVisualStyles to /// determine how to render. /// If this property is false, the renderer will always render with visualstyles. /// ////// /// public static bool IsBackgroundPartiallyTransparent(CheckBoxState state) { if (RenderWithVisualStyles) { InitializeRenderer((int)state); return visualStyleRenderer.IsBackgroundPartiallyTransparent(); } else { return false; //for downlevel, this is false } } ////// Returns true if the background corresponding to the given state is partially transparent, else false. /// ////// /// [ SuppressMessage("Microsoft.Design", "CA1011:ConsiderPassingBaseTypesAsParameters") // Using Graphics instead of IDeviceContext intentionally ] public static void DrawParentBackground(Graphics g, Rectangle bounds, Control childControl) { if (RenderWithVisualStyles) { InitializeRenderer(0); visualStyleRenderer.DrawParentBackground(g, bounds, childControl); } } ////// This is just a convenience wrapper for VisualStyleRenderer.DrawThemeParentBackground. For downlevel, /// this isn't required and does nothing. /// ////// /// public static void DrawCheckBox(Graphics g, Point glyphLocation, CheckBoxState state) { Rectangle glyphBounds = new Rectangle(glyphLocation, GetGlyphSize(g, state)); if (RenderWithVisualStyles) { InitializeRenderer((int)state); visualStyleRenderer.DrawBackground(g, glyphBounds); } else { if (IsMixed(state)) { ControlPaint.DrawMixedCheckBox(g, glyphBounds, ConvertToButtonState(state)); } else { ControlPaint.DrawCheckBox(g, glyphBounds, ConvertToButtonState(state)); } } } ////// Renders a CheckBox control. /// ////// /// public static void DrawCheckBox(Graphics g, Point glyphLocation, Rectangle textBounds, string checkBoxText, Font font, bool focused, CheckBoxState state) { DrawCheckBox(g, glyphLocation, textBounds, checkBoxText, font, TextFormatFlags.HorizontalCenter | TextFormatFlags.VerticalCenter | TextFormatFlags.SingleLine, focused, state); } ////// Renders a CheckBox control. /// ////// /// public static void DrawCheckBox(Graphics g, Point glyphLocation, Rectangle textBounds, string checkBoxText, Font font, TextFormatFlags flags, bool focused, CheckBoxState state) { Rectangle glyphBounds = new Rectangle(glyphLocation, GetGlyphSize(g, state)); Color textColor; if (RenderWithVisualStyles) { InitializeRenderer((int)state); visualStyleRenderer.DrawBackground(g, glyphBounds); textColor = visualStyleRenderer.GetColor(ColorProperty.TextColor); } else { if (IsMixed(state)) { ControlPaint.DrawMixedCheckBox(g, glyphBounds, ConvertToButtonState(state)); } else { ControlPaint.DrawCheckBox(g, glyphBounds, ConvertToButtonState(state)); } textColor = SystemColors.ControlText; } TextRenderer.DrawText(g, checkBoxText, font, textBounds, textColor, flags); if (focused) { ControlPaint.DrawFocusRectangle(g, textBounds); } } ////// Renders a CheckBox control. /// ////// /// public static void DrawCheckBox(Graphics g, Point glyphLocation, Rectangle textBounds, string checkBoxText, Font font, Image image, Rectangle imageBounds, bool focused, CheckBoxState state) { DrawCheckBox(g, glyphLocation, textBounds, checkBoxText, font, TextFormatFlags.HorizontalCenter | TextFormatFlags.VerticalCenter | TextFormatFlags.SingleLine, image, imageBounds, focused, state); } ////// Renders a CheckBox control. /// ////// /// public static void DrawCheckBox(Graphics g, Point glyphLocation, Rectangle textBounds, string checkBoxText, Font font, TextFormatFlags flags, Image image, Rectangle imageBounds, bool focused, CheckBoxState state) { Rectangle glyphBounds = new Rectangle(glyphLocation, GetGlyphSize(g, state)); Color textColor; if (RenderWithVisualStyles) { InitializeRenderer((int)state); //Keep this drawing order! It matches default drawing order. visualStyleRenderer.DrawImage(g, imageBounds, image); visualStyleRenderer.DrawBackground(g, glyphBounds); textColor = visualStyleRenderer.GetColor(ColorProperty.TextColor); } else { g.DrawImage(image, imageBounds); if (IsMixed(state)) { ControlPaint.DrawMixedCheckBox(g, glyphBounds, ConvertToButtonState(state)); } else { ControlPaint.DrawCheckBox(g, glyphBounds, ConvertToButtonState(state)); } textColor = SystemColors.ControlText; } TextRenderer.DrawText(g, checkBoxText, font, textBounds, textColor, flags); if (focused) { ControlPaint.DrawFocusRectangle(g, textBounds); } } ////// Renders a CheckBox control. /// ////// /// [ SuppressMessage("Microsoft.Design", "CA1011:ConsiderPassingBaseTypesAsParameters") // Using Graphics instead of IDeviceContext intentionally ] public static Size GetGlyphSize(Graphics g, CheckBoxState state) { if (RenderWithVisualStyles) { InitializeRenderer((int)state); return visualStyleRenderer.GetPartSize(g, ThemeSizeType.Draw); } return new Size(13, 13); } internal static ButtonState ConvertToButtonState(CheckBoxState state) { switch (state) { case CheckBoxState.CheckedNormal: case CheckBoxState.CheckedHot: return ButtonState.Checked; case CheckBoxState.CheckedPressed: return (ButtonState.Checked | ButtonState.Pushed); case CheckBoxState.CheckedDisabled: return (ButtonState.Checked | ButtonState.Inactive); case CheckBoxState.UncheckedPressed: return ButtonState.Pushed; case CheckBoxState.UncheckedDisabled: return ButtonState.Inactive; //Downlevel mixed drawing works only if ButtonState.Checked is set case CheckBoxState.MixedNormal: case CheckBoxState.MixedHot: return ButtonState.Checked; case CheckBoxState.MixedPressed: return (ButtonState.Checked | ButtonState.Pushed); case CheckBoxState.MixedDisabled: return (ButtonState.Checked | ButtonState.Inactive); default: return ButtonState.Normal; } } internal static CheckBoxState ConvertFromButtonState(ButtonState state, bool isMixed, bool isHot) { if (isMixed) { if ((state & ButtonState.Pushed) == ButtonState.Pushed) { return CheckBoxState.MixedPressed; } else if ((state & ButtonState.Inactive) == ButtonState.Inactive) { return CheckBoxState.MixedDisabled; } else if (isHot) { return CheckBoxState.MixedHot; } return CheckBoxState.MixedNormal; } else if ((state & ButtonState.Checked) == ButtonState.Checked) { if ((state & ButtonState.Pushed) == ButtonState.Pushed) { return CheckBoxState.CheckedPressed; } else if ((state & ButtonState.Inactive) == ButtonState.Inactive) { return CheckBoxState.CheckedDisabled; } else if (isHot) { return CheckBoxState.CheckedHot; } return CheckBoxState.CheckedNormal; } else { //unchecked if ((state & ButtonState.Pushed) == ButtonState.Pushed) { return CheckBoxState.UncheckedPressed; } else if ((state & ButtonState.Inactive) == ButtonState.Inactive) { return CheckBoxState.UncheckedDisabled; } else if (isHot) { return CheckBoxState.UncheckedHot; } return CheckBoxState.UncheckedNormal; } } private static bool IsMixed(CheckBoxState state) { switch (state) { case CheckBoxState.MixedNormal: case CheckBoxState.MixedHot: case CheckBoxState.MixedPressed: case CheckBoxState.MixedDisabled: return true; default: return false; } } private static void InitializeRenderer(int state) { if (visualStyleRenderer == null) { visualStyleRenderer = new VisualStyleRenderer(CheckBoxElement.ClassName, CheckBoxElement.Part, state); } else { visualStyleRenderer.SetParameters(CheckBoxElement.ClassName, CheckBoxElement.Part, state); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007./// Returns the size of the CheckBox glyph. /// ///
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- Point3DKeyFrameCollection.cs
- MemoryFailPoint.cs
- __Error.cs
- EventHandlersDesigner.cs
- GridViewRowCollection.cs
- ValidatorCollection.cs
- RadialGradientBrush.cs
- Activator.cs
- MouseEvent.cs
- PolicyManager.cs
- TextServicesLoader.cs
- WebPartMinimizeVerb.cs
- RegexBoyerMoore.cs
- DetailsView.cs
- StyleTypedPropertyAttribute.cs
- WorkflowMarkupSerializationException.cs
- CustomValidator.cs
- ArgumentNullException.cs
- LocationReference.cs
- SqlAliaser.cs
- ZipIOExtraField.cs
- RawAppCommandInputReport.cs
- XmlAttribute.cs
- ExternalException.cs
- HtmlInputPassword.cs
- TextParaClient.cs
- RtfToXamlLexer.cs
- AssemblyAttributesGoHere.cs
- TreeViewImageIndexConverter.cs
- ScriptManager.cs
- XmlSchemas.cs
- DependencyPropertyAttribute.cs
- TextSpanModifier.cs
- RowBinding.cs
- ListenerHandler.cs
- DtdParser.cs
- SimplePropertyEntry.cs
- ProcessStartInfo.cs
- TraceHandlerErrorFormatter.cs
- ValidatingPropertiesEventArgs.cs
- Msec.cs
- NameValueSectionHandler.cs
- BaseCAMarshaler.cs
- ZipIOExtraFieldPaddingElement.cs
- DrawingAttributesDefaultValueFactory.cs
- ActivationWorker.cs
- StorageBasedPackageProperties.cs
- ReadOnlyDataSource.cs
- DesignerVerb.cs
- DoWorkEventArgs.cs
- EntityDataSourceWrapper.cs
- StrokeCollection.cs
- PersonalizationEntry.cs
- QuarticEase.cs
- BindableAttribute.cs
- DataSourceCacheDurationConverter.cs
- ToolStripPanelDesigner.cs
- HwndPanningFeedback.cs
- DragEvent.cs
- TokenBasedSet.cs
- CanExecuteRoutedEventArgs.cs
- ConfigurationManagerHelper.cs
- DBSchemaRow.cs
- AsyncOperationManager.cs
- Descriptor.cs
- XamlTypeMapper.cs
- FilterException.cs
- SqlEnums.cs
- ImpersonateTokenRef.cs
- FileVersionInfo.cs
- InternalsVisibleToAttribute.cs
- PropertySet.cs
- _NestedSingleAsyncResult.cs
- PersonalizableAttribute.cs
- NativeMethods.cs
- UserUseLicenseDictionaryLoader.cs
- XmlSerializer.cs
- ListChunk.cs
- UnknownBitmapEncoder.cs
- SelectionPattern.cs
- UpdateProgress.cs
- OwnerDrawPropertyBag.cs
- BuildProviderCollection.cs
- AnnotationHighlightLayer.cs
- IOThreadScheduler.cs
- UnmanagedMarshal.cs
- ResourcesGenerator.cs
- __Error.cs
- ObjectViewEntityCollectionData.cs
- ThreadWorkerController.cs
- RootNamespaceAttribute.cs
- MenuItemBindingCollection.cs
- SweepDirectionValidation.cs
- BindingMemberInfo.cs
- BamlTreeMap.cs
- SubclassTypeValidator.cs
- DeferredReference.cs
- UnionCodeGroup.cs
- LogFlushAsyncResult.cs
- Convert.cs