/// <summary> /// Initialize a new instance of the RadioButton class. /// </summary> public KryptonRadioButton() { // Turn off standard click and double click events, we do that manually SetStyle(ControlStyles.StandardClick | ControlStyles.StandardDoubleClick, false); // Set default properties _style = LabelStyle.NormalControl; _orientation = VisualOrientation.Top; _checkPosition = VisualOrientation.Left; _checked = false; _useMnemonic = true; _autoCheck = true; // Create content storage Values = new LabelValues(NeedPaintDelegate); Values.TextChanged += OnRadioButtonTextChanged; Images = new RadioButtonImages(NeedPaintDelegate); // Create palette redirector _paletteCommonRedirect = new PaletteContentInheritRedirect(Redirector, PaletteContentStyle.LabelNormalControl); _paletteRadioButtonImages = new PaletteRedirectRadioButton(Redirector, Images); // Create the palette provider StateCommon = new PaletteContent(_paletteCommonRedirect, NeedPaintDelegate); StateDisabled = new PaletteContent(StateCommon, NeedPaintDelegate); StateNormal = new PaletteContent(StateCommon, NeedPaintDelegate); OverrideFocus = new PaletteContent(_paletteCommonRedirect, NeedPaintDelegate); // Override the normal values with the focus, when the control has focus _overrideNormal = new PaletteContentInheritOverride(OverrideFocus, StateNormal, PaletteState.FocusOverride, false); // Our view contains background and border with content inside _drawContent = new ViewDrawContent(_overrideNormal, Values, VisualOrientation.Top) { UseMnemonic = _useMnemonic, // Only draw a focus rectangle when focus cues are needed in the top level form TestForFocusCues = true }; // Create the check box image drawer and place inside element so it is always centered _drawRadioButton = new ViewDrawRadioButton(_paletteRadioButtonImages) { CheckState = _checked }; _layoutCenter = new ViewLayoutCenter { _drawRadioButton }; // Place check box on the left and the label in the remainder _layoutDocker = new ViewLayoutDocker { { _layoutCenter, ViewDockStyle.Left }, { _drawContent, ViewDockStyle.Fill } }; // Need a controller for handling mouse input _controller = new RadioButtonController(_drawRadioButton, _layoutDocker, NeedPaintDelegate); _controller.Click += OnControllerClick; _controller.Enabled = true; _layoutDocker.MouseController = _controller; _layoutDocker.KeyController = _controller; // Change the layout to match the inital right to left setting and orientation UpdateForOrientation(); // Create the view manager instance ViewManager = new ViewManager(this, _layoutDocker); // We want to be auto sized by default, but not the property default! AutoSize = true; AutoSizeMode = AutoSizeMode.GrowAndShrink; }
/// <summary> /// Initialize a new instance of the ViewDrawButton class. /// </summary> /// <param name="paletteDisabled">Palette source for the disabled state.</param> /// <param name="paletteNormal">Palette source for the normal state.</param> /// <param name="paletteTracking">Palette source for the tracking state.</param> /// <param name="palettePressed">Palette source for the pressed state.</param> /// <param name="paletteCheckedNormal">Palette source for the normal checked state.</param> /// <param name="paletteCheckedTracking">Palette source for the tracking checked state.</param> /// <param name="paletteCheckedPressed">Palette source for the pressed checked state.</param> /// <param name="paletteMetric">Palette source for metric values.</param> /// <param name="buttonValues">Source for content values.</param> /// <param name="orientation">Visual orientation of the content.</param> /// <param name="useMnemonic">Use mnemonics.</param> public ViewDrawButton(IPaletteTriple paletteDisabled, IPaletteTriple paletteNormal, IPaletteTriple paletteTracking, IPaletteTriple palettePressed, IPaletteTriple paletteCheckedNormal, IPaletteTriple paletteCheckedTracking, IPaletteTriple paletteCheckedPressed, IPaletteMetric paletteMetric, IContentValues buttonValues, VisualOrientation orientation, bool useMnemonic) { // Remember the source information _paletteDisabled = paletteDisabled; _paletteNormal = paletteNormal; _paletteTracking = paletteTracking; _palettePressed = palettePressed; _paletteCheckedNormal = paletteCheckedNormal; _paletteCheckedTracking = paletteCheckedTracking; _paletteCheckedPressed = paletteCheckedPressed; CurrentPalette = _paletteNormal; // Default to not being checked Checked = false; AllowUncheck = true; _dropDown = false; _splitter = false; _dropDownPosition = VisualOrientation.Right; // Create the drop down view _drawDropDown = new ViewLayoutCenter(1); _drawDropDownButton = new ViewDrawDropDownButton(); _drawDropDown.Add(_drawDropDownButton); _drawOuterSeparator = new ViewLayoutSeparator(1); // Create the view used to draw the split edge _edgeRedirect = new PaletteBorderEdgeRedirect(_paletteNormal.PaletteBorder, null); _drawSplitBorder = new ViewDrawBorderEdge(new PaletteBorderEdge(_edgeRedirect, null), CommonHelper.VisualToOrientation(orientation)); // Our view contains background and border with content inside _drawContent = new ViewDrawContent(_paletteNormal.PaletteContent, buttonValues, orientation); _drawCanvas = new ViewDrawSplitCanvas(_paletteNormal.PaletteBack, _paletteNormal.PaletteBorder, paletteMetric, PaletteMetricPadding.None, orientation); // Use a docker layout to organize the contents of the canvas LayoutDocker = new ViewLayoutDocker { { _drawContent, ViewDockStyle.Fill }, { _drawSplitBorder, ViewDockStyle.Right }, { _drawDropDown, ViewDockStyle.Right }, { _drawOuterSeparator, ViewDockStyle.Right } }; LayoutDocker.Tag = this; // Pass the mnemonic default to the content view _drawContent.UseMnemonic = useMnemonic; // Place the content inside the canvas _drawCanvas.Add(LayoutDocker); // Set initial view element visible states UpdateDropDown(); // Place the canvas inside ourself Add(_drawCanvas); }
/// <summary> /// Initialize a new instance of the ViewDrawMonth class. /// </summary> /// <param name="calendar">Reference to calendar provider.</param> /// <param name="months">Reference to months instance.</param> /// <param name="redirector">Redirector for getting values.</param> /// <param name="needPaintDelegate">Delegate for requesting paint changes.</param> public ViewDrawMonth(IKryptonMonthCalendar calendar, ViewLayoutMonths months, PaletteRedirect redirector, NeedPaintHandler needPaintDelegate) : base(false) { _calendar = calendar; _months = months; // Add a header for showing the month/year value _drawContent = new ViewDrawContent(_calendar.StateNormal.Header.Content, this, VisualOrientation.Top); _borderForced = new PaletteBorderInheritForced(_calendar.StateNormal.Header.Border); _borderForced.ForceBorderEdges(PaletteDrawBorders.None); _drawHeader = new ViewDrawDocker(_calendar.StateNormal.Header.Back, _borderForced, null) { { _drawContent, ViewDockStyle.Fill } }; Add(_drawHeader); // Create the left/right arrows for moving the months _arrowPrev = new ButtonSpecCalendar(this, PaletteButtonSpecStyle.Previous, RelativeEdgeAlign.Near); _arrowNext = new ButtonSpecCalendar(this, PaletteButtonSpecStyle.Next, RelativeEdgeAlign.Far); _arrowPrev.Click += OnPrevMonth; _arrowNext.Click += OnNextMonth; _buttonSpecs = new CalendarButtonSpecCollection(this) { _arrowPrev, _arrowNext }; // Using a button spec manager to add the buttons to the header _buttonManager = new ButtonSpecManagerDraw(_calendar.CalendarControl, redirector, null, _buttonSpecs, new ViewDrawDocker[] { _drawHeader }, new IPaletteMetric[] { _calendar.StateCommon }, new PaletteMetricInt[] { PaletteMetricInt.HeaderButtonEdgeInsetCalendar }, new PaletteMetricPadding[] { PaletteMetricPadding.None }, _calendar.GetToolStripDelegate, needPaintDelegate); // Create stacks for holding display items ViewLayoutStack namesStack = new ViewLayoutStack(true); ViewLayoutStack weeksStack = new ViewLayoutStack(true); ViewLayoutStack daysStack = new ViewLayoutStack(false); _numberStack = new ViewLayoutStack(false); weeksStack.Add(_numberStack); weeksStack.Add(daysStack); // Add day names _drawMonthDayNames = new ViewDrawMonthDayNames(_calendar, _months); _drawWeekCorner = new ViewLayoutWeekCorner(_calendar, _months, _calendar.StateNormal.Header.Border); namesStack.Add(_drawWeekCorner); namesStack.Add(_drawMonthDayNames); Add(namesStack); Add(weeksStack); // Add border between week numbers and days area _borderEdgeRedirect = new PaletteBorderEdgeRedirect(_calendar.StateNormal.Header.Border, null); _borderEdge = new PaletteBorderEdge(_borderEdgeRedirect, null); _drawBorderEdge = new ViewDrawBorderEdge(_borderEdge, Orientation.Vertical); _drawWeekNumbers = new ViewDrawWeekNumbers(_calendar, _months); ViewLayoutDocker borderLeftDock = new ViewLayoutDocker { { _drawWeekNumbers, ViewDockStyle.Left }, { new ViewLayoutSeparator(0, 4), ViewDockStyle.Top }, { _drawBorderEdge, ViewDockStyle.Fill }, { new ViewLayoutSeparator(0, 4), ViewDockStyle.Bottom } }; _numberStack.Add(borderLeftDock); // Add border between day names and individual days PaletteBorderEdgeRedirect borderEdgeRedirect = new PaletteBorderEdgeRedirect(_calendar.StateNormal.Header.Border, null); PaletteBorderEdge borderEdge = new PaletteBorderEdge(borderEdgeRedirect, null); ViewDrawBorderEdge drawBorderEdge = new ViewDrawBorderEdge(borderEdge, Orientation.Horizontal); ViewLayoutDocker borderTopDock = new ViewLayoutDocker { { new ViewLayoutSeparator(4, 1), ViewDockStyle.Left }, { drawBorderEdge, ViewDockStyle.Fill }, { new ViewLayoutSeparator(4, 1), ViewDockStyle.Right }, { new ViewLayoutSeparator(1, 3), ViewDockStyle.Bottom } }; daysStack.Add(borderTopDock); // Add the actual individual days ViewDrawMonthDays = new ViewDrawMonthDays(_calendar, _months); daysStack.Add(ViewDrawMonthDays); // Adding buttons manually means we have to ask for buttons to be created _buttonManager.RecreateButtons(); }
/// <summary> /// Initialize a new instance of the ViewDrawMenuLinkLabel class. /// </summary> /// <param name="provider">Reference to provider.</param> /// <param name="linkLabel">Reference to owning link label entry.</param> public ViewDrawMenuLinkLabel(IContextMenuProvider provider, KryptonContextMenuLinkLabel linkLabel) { _provider = provider; KryptonContextMenuLinkLabel = linkLabel; // Create fixed storage of the content values _contentValues = new FixedContentValue(linkLabel.Text, linkLabel.ExtraText, linkLabel.Image, linkLabel.ImageTransparentColor); // Decide on the enabled state of the display ItemEnabled = provider.ProviderEnabled; // Give the heading object the redirector to use when inheriting values linkLabel.SetPaletteRedirect(provider.ProviderRedirector); // Create the content for the actual heading text/image _drawContent = new ViewDrawContent(linkLabel.OverrideFocusNotVisited, _contentValues, VisualOrientation.Top) { UseMnemonic = true, Enabled = ItemEnabled }; // Place label link in the center of the area but inside some separator to add spacing _innerDocker = new ViewLayoutDocker { { _drawContent, ViewDockStyle.Fill }, { new ViewLayoutSeparator(1), ViewDockStyle.Right }, { new ViewLayoutSeparator(1), ViewDockStyle.Left }, { new ViewLayoutSeparator(1), ViewDockStyle.Top }, { new ViewLayoutSeparator(1), ViewDockStyle.Bottom } }; // Use outer docker so that any extra space not needed is used by the null _outerDocker = new ViewLayoutDocker { { _innerDocker, ViewDockStyle.Top }, { new ViewLayoutNull(), ViewDockStyle.Fill } }; // Use context menu specific version of the link label controller MenuLinkLabelController mllc = new MenuLinkLabelController(provider.ProviderViewManager, _drawContent, this, provider.ProviderNeedPaintDelegate); mllc.Click += OnClick; _drawContent.MouseController = mllc; _drawContent.KeyController = mllc; // Add docker as the composite content Add(_outerDocker); // Want to know when a property changes whilst displayed KryptonContextMenuLinkLabel.PropertyChanged += OnPropertyChanged; // We need to know if a property of the command changes if (KryptonContextMenuLinkLabel.KryptonCommand != null) { _cachedCommand = KryptonContextMenuLinkLabel.KryptonCommand; KryptonContextMenuLinkLabel.KryptonCommand.PropertyChanged += OnCommandPropertyChanged; } }
/// <summary> /// Initialize a new instance of the ViewDrawMenuCheckButton class. /// </summary> /// <param name="provider">Reference to provider.</param> /// <param name="checkButton">Reference to owning check button entry.</param> public ViewDrawMenuCheckButton(IContextMenuProvider provider, KryptonContextMenuCheckButton checkButton) { _provider = provider; KryptonContextMenuCheckButton = checkButton; // Create fixed storage of the content values _contentValues = new FixedContentValue(ResolveText, ResolveExtraText, ResolveImage, ResolveImageTransparentColor); // Decide on the enabled state of the display ItemEnabled = provider.ProviderEnabled && ResolveEnabled; // Give the heading object the redirector to use when inheriting values KryptonContextMenuCheckButton.SetPaletteRedirect(provider.ProviderRedirector); // Create the view button instance ViewDrawButton = new ViewDrawButton(checkButton.OverrideDisabled, checkButton.OverrideNormal, checkButton.OverrideTracking, checkButton.OverridePressed, new PaletteMetricRedirect(provider.ProviderRedirector), _contentValues, VisualOrientation.Top, true); // Add the checked specific palettes to the existing view button ViewDrawButton.SetCheckedPalettes(checkButton.OverrideCheckedNormal, checkButton.OverrideCheckedTracking, checkButton.OverrideCheckedPressed); ViewDrawButton.Enabled = ItemEnabled; ViewDrawButton.Checked = ResolveChecked; // Place the check box on the left of the available space but inside separators _innerDocker = new ViewLayoutDocker { { ViewDrawButton, ViewDockStyle.Fill }, { new ViewLayoutSeparator(1), ViewDockStyle.Right }, { new ViewLayoutSeparator(1), ViewDockStyle.Left }, { new ViewLayoutSeparator(1), ViewDockStyle.Top }, { new ViewLayoutSeparator(1), ViewDockStyle.Bottom } }; // Use outer docker so that any extra space not needed is used by the null _outerDocker = new ViewLayoutDocker { { _innerDocker, ViewDockStyle.Top }, { new ViewLayoutNull(), ViewDockStyle.Fill } }; // Use context menu specific version of the check box controller MenuCheckButtonController mcbc = new MenuCheckButtonController(provider.ProviderViewManager, _innerDocker, this, provider.ProviderNeedPaintDelegate); mcbc.Click += OnClick; _innerDocker.MouseController = mcbc; _innerDocker.KeyController = mcbc; // Add docker as the composite content Add(_outerDocker); // Want to know when a property changes whilst displayed KryptonContextMenuCheckButton.PropertyChanged += OnPropertyChanged; // We need to know if a property of the command changes if (KryptonContextMenuCheckButton.KryptonCommand != null) { _cachedCommand = KryptonContextMenuCheckButton.KryptonCommand; KryptonContextMenuCheckButton.KryptonCommand.PropertyChanged += OnCommandPropertyChanged; } }
/// <summary> /// Initialize a new instance of the ViewDrawMenuItem class. /// </summary> /// <param name="provider">Provider of context menu information.</param> /// <param name="menuItem">Menu item definition.</param> /// <param name="columns">Containing columns.</param> /// <param name="standardStyle">Draw items with standard or alternate style.</param> /// <param name="imageColumn">Draw an image background for the item images.</param> public ViewDrawMenuItem(IContextMenuProvider provider, KryptonContextMenuItem menuItem, ViewLayoutStack columns, bool standardStyle, bool imageColumn) : base(menuItem.StateNormal.ItemHighlight.Back, menuItem.StateNormal.ItemHighlight.Border, menuItem.StateNormal.ItemHighlight, PaletteMetricPadding.ContextMenuItemHighlight, VisualOrientation.Top) { // Remember values _provider = provider; KryptonContextMenuItem = menuItem; _imageColumn = imageColumn; _standardStyle = standardStyle; // Give the item object the redirector to use when inheriting values KryptonContextMenuItem.SetPaletteRedirect(provider); // Create a stack of horizontal items inside the item ViewLayoutDocker docker = new ViewLayoutDocker(); // Decide on the enabled state of the display ItemEnabled = provider.ProviderEnabled && ResolveEnabled; PaletteContextMenuItemState menuItemState = (ItemEnabled ? KryptonContextMenuItem.StateNormal : KryptonContextMenuItem.StateDisabled); // Calculate the image to show inside in the image column Image itemColumnImage = ResolveImage; Color itemImageTransparent = ResolveImageTransparentColor; // If no image found then... if (itemColumnImage != null) { // Ensure we have a fixed size if we are showing an image column if (_imageColumn) { itemColumnImage = _empty16x16; itemImageTransparent = Color.Magenta; } switch (ResolveCheckState) { case CheckState.Checked: itemColumnImage = provider.ProviderImages.GetContextMenuCheckedImage(); itemImageTransparent = Color.Empty; break; case CheckState.Indeterminate: itemColumnImage = provider.ProviderImages.GetContextMenuIndeterminateImage(); itemImageTransparent = Color.Empty; break; } } // Column Image PaletteTripleJustImage justImage = (ResolveChecked ? KryptonContextMenuItem.StateChecked.ItemImage : menuItemState.ItemImage); _fixedImage = new FixedContentValue(null, null, itemColumnImage, itemImageTransparent); _imageContent = new ViewDrawContent(justImage.Content, _fixedImage, VisualOrientation.Top); _imageCanvas = new ViewDrawMenuImageCanvas(justImage.Back, justImage.Border, 0, false) { _imageContent }; docker.Add(new ViewLayoutCenter(_imageCanvas), ViewDockStyle.Left); _imageContent.Enabled = ItemEnabled; // Text/Extra Text PaletteContentJustText menuItemStyle = (standardStyle ? menuItemState.ItemTextStandard : menuItemState.ItemTextAlternate); _fixedTextExtraText = new FixedContentValue(ResolveText, ResolveExtraText, null, Color.Empty); _textContent = new ViewDrawMenuItemContent(menuItemStyle, _fixedTextExtraText, 1); docker.Add(_textContent, ViewDockStyle.Fill); _textContent.Enabled = ItemEnabled; // Shortcut if (KryptonContextMenuItem.ShowShortcutKeys) { string shortcutString = KryptonContextMenuItem.ShortcutKeyDisplayString; if (string.IsNullOrEmpty(shortcutString)) { shortcutString = (KryptonContextMenuItem.ShortcutKeys != Keys.None) ? new KeysConverter().ConvertToString(KryptonContextMenuItem.ShortcutKeys) : string.Empty; } if (shortcutString.Length > 0) { _shortcutContent = new ViewDrawMenuItemContent(menuItemState.ItemShortcutText, new FixedContentValue(shortcutString, null, null, Color.Empty), 2); docker.Add(_shortcutContent, ViewDockStyle.Right); _shortcutContent.Enabled = ItemEnabled; } } // Add split item separator SplitSeparator = new ViewDrawMenuSeparator(menuItemState.ItemSplit); docker.Add(SplitSeparator, ViewDockStyle.Right); SplitSeparator.Enabled = ItemEnabled; SplitSeparator.Draw = (KryptonContextMenuItem.Items.Count > 0) && KryptonContextMenuItem.SplitSubMenu; // SubMenu Indicator HasSubMenu = (KryptonContextMenuItem.Items.Count > 0); _subMenuContent = new ViewDrawMenuItemContent(menuItemState.ItemImage.Content, new FixedContentValue(null, null, (!HasSubMenu ? _empty16x16 : provider.ProviderImages.GetContextMenuSubMenuImage()), (KryptonContextMenuItem.Items.Count == 0 ? Color.Magenta : Color.Empty)), 3); docker.Add(new ViewLayoutCenter(_subMenuContent), ViewDockStyle.Right); _subMenuContent.Enabled = ItemEnabled; Add(docker); // Add a controller for handing mouse and keyboard events MenuItemController mic = new MenuItemController(provider.ProviderViewManager, this, provider.ProviderNeedPaintDelegate); MouseController = mic; KeyController = mic; // Want to know when a property changes whilst displayed KryptonContextMenuItem.PropertyChanged += OnPropertyChanged; // We need to know if a property of the command changes if (KryptonContextMenuItem.KryptonCommand != null) { _cachedCommand = KryptonContextMenuItem.KryptonCommand; KryptonContextMenuItem.KryptonCommand.PropertyChanged += OnCommandPropertyChanged; } }
/// <summary> /// Initialize a new instance of the ViewDrawMenuRadioButton class. /// </summary> /// <param name="provider">Reference to provider.</param> /// <param name="radioButton">Reference to owning radio button entry.</param> public ViewDrawMenuRadioButton(IContextMenuProvider provider, KryptonContextMenuRadioButton radioButton) { _provider = provider; KryptonContextMenuRadioButton = radioButton; // Create fixed storage of the content values _contentValues = new FixedContentValue(radioButton.Text, radioButton.ExtraText, radioButton.Image, radioButton.ImageTransparentColor); // Decide on the enabled state of the display ItemEnabled = provider.ProviderEnabled && KryptonContextMenuRadioButton.Enabled; // Give the heading object the redirector to use when inheriting values KryptonContextMenuRadioButton.SetPaletteRedirect(provider.ProviderRedirector); // Create the content for the actual heading text/image ViewDrawContent = new ViewDrawContent((ItemEnabled ? KryptonContextMenuRadioButton.OverrideNormal : KryptonContextMenuRadioButton.OverrideDisabled), _contentValues, VisualOrientation.Top) { UseMnemonic = true, Enabled = ItemEnabled }; // Create the radio button image drawer and place inside element so it is always centered ViewDrawRadioButton = new ViewDrawRadioButton(KryptonContextMenuRadioButton.StateRadioButtonImages) { CheckState = KryptonContextMenuRadioButton.Checked, Enabled = ItemEnabled }; _layoutCenter = new ViewLayoutCenter { ViewDrawRadioButton }; // Place the radio button on the left of the available space but inside separators _innerDocker = new ViewLayoutDocker { { ViewDrawContent, ViewDockStyle.Fill }, { _layoutCenter, ViewDockStyle.Left }, { new ViewLayoutSeparator(1), ViewDockStyle.Right }, { new ViewLayoutSeparator(3), ViewDockStyle.Left }, { new ViewLayoutSeparator(1), ViewDockStyle.Top }, { new ViewLayoutSeparator(1), ViewDockStyle.Bottom } }; // Use outer docker so that any extra space not needed is used by the null _outerDocker = new ViewLayoutDocker { { _innerDocker, ViewDockStyle.Top }, { new ViewLayoutNull(), ViewDockStyle.Fill } }; // Use context menu specific version of the radio button controller MenuRadioButtonController mrbc = new MenuRadioButtonController(provider.ProviderViewManager, _innerDocker, this, provider.ProviderNeedPaintDelegate); mrbc.Click += OnClick; _innerDocker.MouseController = mrbc; _innerDocker.KeyController = mrbc; // We need to be notified whenever the checked state changes KryptonContextMenuRadioButton.CheckedChanged += OnCheckedChanged; // Add docker as the composite content Add(_outerDocker); }
/// <summary> /// Initialize a new instance of the ViewDrawMenuCheckBox class. /// </summary> /// <param name="provider">Reference to provider.</param> /// <param name="checkBox">Reference to owning check box entry.</param> public ViewDrawMenuCheckBox(IContextMenuProvider provider, KryptonContextMenuCheckBox checkBox) { _provider = provider; KryptonContextMenuCheckBox = checkBox; // Create fixed storage of the content values _contentValues = new FixedContentValue(ResolveText, ResolveExtraText, ResolveImage, ResolveImageTransparentColor); // Decide on the enabled state of the display ItemEnabled = provider.ProviderEnabled && ResolveEnabled; // Give the heading object the redirector to use when inheriting values KryptonContextMenuCheckBox.SetPaletteRedirect(provider.ProviderRedirector); // Create the content for the actual heading text/image ViewDrawContent = new ViewDrawContent((ItemEnabled ? KryptonContextMenuCheckBox.OverrideNormal : KryptonContextMenuCheckBox.OverrideDisabled), _contentValues, VisualOrientation.Top) { UseMnemonic = true, Enabled = ItemEnabled }; // Create the check box image drawer and place inside element so it is always centered ViewDrawCheckBox = new ViewDrawCheckBox(KryptonContextMenuCheckBox.StateCheckBoxImages) { CheckState = ResolveCheckState, Enabled = ItemEnabled }; _layoutCenter = new ViewLayoutCenter { ViewDrawCheckBox }; // Place the check box on the left of the available space but inside separators _innerDocker = new ViewLayoutDocker { { ViewDrawContent, ViewDockStyle.Fill }, { _layoutCenter, ViewDockStyle.Left }, { new ViewLayoutSeparator(1), ViewDockStyle.Right }, { new ViewLayoutSeparator(3), ViewDockStyle.Left }, { new ViewLayoutSeparator(1), ViewDockStyle.Top }, { new ViewLayoutSeparator(1), ViewDockStyle.Bottom } }; // Use outer docker so that any extra space not needed is used by the null _outerDocker = new ViewLayoutDocker { { _innerDocker, ViewDockStyle.Top }, { new ViewLayoutNull(), ViewDockStyle.Fill } }; // Use context menu specific version of the check box controller MenuCheckBoxController mcbc = new MenuCheckBoxController(provider.ProviderViewManager, _innerDocker, this, provider.ProviderNeedPaintDelegate); mcbc.Click += OnClick; _innerDocker.MouseController = mcbc; _innerDocker.KeyController = mcbc; // Add docker as the composite content Add(_outerDocker); // Want to know when a property changes whilst displayed KryptonContextMenuCheckBox.PropertyChanged += OnPropertyChanged; // We need to know if a property of the command changes if (KryptonContextMenuCheckBox.KryptonCommand != null) { _cachedCommand = KryptonContextMenuCheckBox.KryptonCommand; KryptonContextMenuCheckBox.KryptonCommand.PropertyChanged += OnCommandPropertyChanged; } }