C# NeedPaintHandler类代码示例

 /// <summary>
 /// Initialize a new instance of the PaletteGalleryState class.
 /// </summary>
 /// <param name="inherit">Source for inheriting values.</param>
 /// <param name="needPaint">Delegate for notifying paint requests.</param>
 public PaletteGalleryState(PaletteGalleryRedirect inherit,
                            NeedPaintHandler needPaint)
 {
     // Create storage that maps onto the inherit instances
     _ribbonBack= new PaletteRibbonBack(inherit.RibbonGalleryBack, needPaint);
     _ribbonBorder = new PaletteRibbonBack(inherit.RibbonGalleryBorder, needPaint);
 }

 /// <summary>
 /// Initialize a new instance of the PaletteRibbonGroupAreaTab class.
 /// </summary>
 /// <param name="inherit">Source for inheriting values.</param>
 /// <param name="needPaint">Delegate for notifying paint requests.</param>
 public PaletteRibbonGroupAreaTab(PaletteRibbonRedirect inherit,
                                  NeedPaintHandler needPaint)
     : base(inherit, needPaint)
 {
     // Create storage that maps onto the inherit instances
     _ribbonGroupArea = new PaletteRibbonBack(inherit.RibbonGroupArea, needPaint);
 }

        /// <summary>
        /// Initialize a new instance of the PaletteDataGridViewContentStates class.
        /// </summary>
        /// <param name="inherit">Source for inheriting defaulted values.</param>
        /// <param name="needPaint">Delegate for notifying paint requests.</param>
        public PaletteDataGridViewContentStates(IPaletteContent inherit,
                                                NeedPaintHandler needPaint)
        {
            Debug.Assert(inherit != null);

            // Remember inheritance
            _inherit = inherit;

            // Store the provided paint notification delegate
            NeedPaint = needPaint;

            // Default the initial values
            _draw = InheritBool.Inherit;
            _hint = PaletteTextHint.Inherit;
            _trim = PaletteTextTrim.Inherit;
            _color1 = Color.Empty;
            _color2 = Color.Empty;
            _colorStyle = PaletteColorStyle.Inherit;
            _colorAlign = PaletteRectangleAlign.Inherit;
            _colorAngle = -1;
            _imageStyle = PaletteImageStyle.Inherit;
            _imageAlign = PaletteRectangleAlign.Inherit;
            _multiLine = InheritBool.Inherit;
            _multiLineH = PaletteRelativeAlign.Inherit;
        }

        /// <summary>
        /// Initialize a new instance of the ViewDrawRibbonGroupColorButton class.
        /// </summary>
        /// <param name="ribbon">Reference to owning ribbon control.</param>
        /// <param name="ribbonColorButton">Reference to source color button definition.</param>
        /// <param name="needPaint">Delegate for notifying paint requests.</param>
        public ViewDrawRibbonGroupColorButton(KryptonRibbon ribbon,
                                              KryptonRibbonGroupColorButton ribbonColorButton,
                                              NeedPaintHandler needPaint)
        {
            Debug.Assert(ribbon != null);
            Debug.Assert(ribbonColorButton != null);
            Debug.Assert(needPaint != null);

            // Remember incoming references
            _ribbon = ribbon;
            _ribbonColorButton = ribbonColorButton;
            _needPaint = needPaint;
            _currentSize = _ribbonColorButton.ItemSizeCurrent;

            // Associate this view with the source component (required for design time selection)
            Component = _ribbonColorButton;

            // Create the different views for different sizes of the button
            CreateLargeButtonView();
            CreateMediumSmallButtonView();

            // Update all views to reflect current button state
            UpdateEnabledState();
            UpdateCheckedState();
            UpdateDropDownState();
            UpdateItemSizeState();

            // Hook into changes in the ribbon button definition
            _ribbonColorButton.PropertyChanged += new PropertyChangedEventHandler(OnButtonPropertyChanged);
        }

        /// <summary>
        /// Initialize a new instance of the ViewDrawRibbonGroupCheckBox class.
        /// </summary>
        /// <param name="ribbon">Reference to owning ribbon control.</param>
        /// <param name="ribbonCheckBox">Reference to source check box definition.</param>
        /// <param name="needPaint">Delegate for notifying paint requests.</param>
        public ViewDrawRibbonGroupCheckBox(KryptonRibbon ribbon,
                                           KryptonRibbonGroupCheckBox ribbonCheckBox,
                                           NeedPaintHandler needPaint)
        {
            Debug.Assert(ribbon != null);
            Debug.Assert(ribbonCheckBox != null);
            Debug.Assert(needPaint != null);

            // Remember incoming references
            _ribbon = ribbon;
            _ribbonCheckBox = ribbonCheckBox;
            _needPaint = needPaint;
            _currentSize = _ribbonCheckBox.ItemSizeCurrent;

            // Create delegate used to process end of click action
            _finishDelegateLarge = new EventHandler(ActionFinishedLarge);
            _finishDelegateMediumSmall = new EventHandler(ActionFinishedMediumSmall);

            // Associate this view with the source component (required for design time selection)
            Component = _ribbonCheckBox;

            // Create the different views for different sizes of the check box
            CreateLargeCheckBoxView();
            CreateMediumSmallCheckBoxView();

            // Update all views to reflect current check box state
            UpdateEnabledState();
            UpdateCheckState();
            UpdateItemSizeState();

            // Hook into changes in the ribbon check box definition
            _ribbonCheckBox.PropertyChanged += new PropertyChangedEventHandler(OnCheckBoxPropertyChanged);
        }

        /// <summary>
        /// Initialize a new instance of the NavigatorBar class.
        /// </summary>
        /// <param name="navigator">Reference to owning navigator instance.</param>
        /// <param name="needPaint">Delegate for notifying paint requests.</param>
        public NavigatorBar(KryptonNavigator navigator,
                            NeedPaintHandler needPaint)
        {
            Debug.Assert(navigator != null);

            // Remember back reference
            _navigator = navigator;

            // Store the provided paint notification delegate
            NeedPaint = needPaint;

            // Default values
            _barAnimation = true;
            _barFirstItemInset = 0;
            _barLastItemInset = 0;
            _barOrientation = VisualOrientation.Top;
            _barMinimumHeight = _defaultBarMinimumHeight;
            _barMultiline = BarMultiline.Singleline;
            _checkButtonStyle = ButtonStyle.Standalone;
            _tabStyle = TabStyle.HighProfile;
            _tabBorderStyle = TabBorderStyle.RoundedOutsizeMedium;
            _itemAlignment = RelativePositionAlign.Near;
            _itemMinimumSize = _defaultItemMinimumSize;
            _itemMaximumSize = _defaultItemMaximumSize;
            _itemOrientation = ButtonOrientation.Auto;
            _itemSizing = BarItemSizing.SameHeight;
            _barMapImage = MapKryptonPageImage.Small;
            _barMapText = MapKryptonPageText.TextTitle;
            _barMapExtraText = MapKryptonPageText.None;
        }

        /// <summary>
        /// Initialize a new instance of the ButtonSpecView class.
        /// </summary>
        /// <param name="redirector">Palette redirector.</param>
        /// <param name="paletteMetric">Source for metric values.</param>
        /// <param name="metricPadding">Padding metric for border padding.</param>
        /// <param name="manager">Reference to owning manager.</param>
        /// <param name="buttonSpec">Access</param>
        public ButtonSpecView(PaletteRedirect redirector,
                              IPaletteMetric paletteMetric,
                              PaletteMetricPadding metricPadding,
                              ButtonSpecManagerBase manager,
                              ButtonSpec buttonSpec)
        {
            Debug.Assert(redirector != null);
            Debug.Assert(manager != null);
            Debug.Assert(buttonSpec != null);

            // Remember references
            _redirector = redirector;
            _manager = manager;
            _buttonSpec = buttonSpec;
            _finishDelegate = new EventHandler(OnFinishDelegate);

            // Create delegate for paint notifications
            NeedPaintHandler needPaint = new NeedPaintHandler(OnNeedPaint);

            // Intercept calls from the button for color remapping and instead use
            // the button spec defined map and the container foreground color
            _remapPalette = _manager.CreateButtonSpecRemap(redirector, buttonSpec);

            // Use a redirector to get button values directly from palette
            _palette = new PaletteTripleRedirect(_remapPalette,
                                                 PaletteBackStyle.ButtonButtonSpec,
                                                 PaletteBorderStyle.ButtonButtonSpec,
                                                 PaletteContentStyle.ButtonButtonSpec,
                                                 needPaint);

            // Create the view for displaying a button
            _viewButton = new ViewDrawButton(_palette, _palette, _palette, _palette,
                                             paletteMetric, this, VisualOrientation.Top, false);

            // Associate the view with the source component (for design time support)
            if (buttonSpec.AllowComponent)
                _viewButton.Component = buttonSpec;

            // Use a view center to place button in centre of given space
            _viewCenter = new ViewLayoutCenter(paletteMetric, metricPadding, VisualOrientation.Top);
            _viewCenter.Add(_viewButton);

            // Create a controller for managing button behavior
            ButtonSpecViewControllers controllers = CreateController(_viewButton, needPaint, new MouseEventHandler(OnClick));
            _viewButton.MouseController = controllers.MouseController;
            _viewButton.SourceController = controllers.SourceController;
            _viewButton.KeyController = controllers.KeyController;

            // We need notifying whenever a button specification property changes
            _buttonSpec.ButtonSpecPropertyChanged += new PropertyChangedEventHandler(OnPropertyChanged);

            // Associate the button spec with the view that is drawing it
            _buttonSpec.SetView(_viewButton);

            // Finally update view with current button spec settings
            UpdateButtonStyle();
            UpdateVisible();
            UpdateEnabled();
            UpdateChecked();
        }

        /// <summary>
        /// Initialize a new instance of the KryptonPaletteHeaders class.
        /// </summary>
        /// <param name="redirector">Palette redirector for sourcing inherited values.</param>
        /// <param name="needPaint">Delegate for notifying paint requests.</param>
        internal KryptonPaletteHeaders(PaletteRedirect redirector,
                                       NeedPaintHandler needPaint)
        {
            Debug.Assert(redirector != null);
            // Create the button style specific and common palettes
            _headerCommon = new KryptonPaletteHeader(redirector, PaletteBackStyle.HeaderPrimary, PaletteBorderStyle.HeaderPrimary, PaletteContentStyle.HeaderPrimary, needPaint);
            _headerPrimary = new KryptonPaletteHeader(redirector, PaletteBackStyle.HeaderPrimary, PaletteBorderStyle.HeaderPrimary, PaletteContentStyle.HeaderPrimary, needPaint);
            _headerSecondary = new KryptonPaletteHeader(redirector, PaletteBackStyle.HeaderSecondary, PaletteBorderStyle.HeaderSecondary, PaletteContentStyle.HeaderSecondary, needPaint);
            _headerDockInactive = new KryptonPaletteHeader(redirector, PaletteBackStyle.HeaderDockInactive, PaletteBorderStyle.HeaderDockInactive, PaletteContentStyle.HeaderDockInactive, needPaint);
            _headerDockActive = new KryptonPaletteHeader(redirector, PaletteBackStyle.HeaderDockActive, PaletteBorderStyle.HeaderDockActive, PaletteContentStyle.HeaderDockActive, needPaint);
            _headerCalendar = new KryptonPaletteHeader(redirector, PaletteBackStyle.HeaderCalendar, PaletteBorderStyle.HeaderCalendar, PaletteContentStyle.HeaderCalendar, needPaint);
            _headerForm = new KryptonPaletteHeader(redirector, PaletteBackStyle.HeaderForm, PaletteBorderStyle.HeaderForm, PaletteContentStyle.HeaderForm, needPaint);
            _headerCustom1 = new KryptonPaletteHeader(redirector, PaletteBackStyle.HeaderCustom1, PaletteBorderStyle.HeaderCustom1, PaletteContentStyle.HeaderCustom1, needPaint);
            _headerCustom2 = new KryptonPaletteHeader(redirector, PaletteBackStyle.HeaderCustom2, PaletteBorderStyle.HeaderCustom2, PaletteContentStyle.HeaderCustom2, needPaint);

            // Create redirectors for inheriting from style specific to style common
            PaletteRedirectTripleMetric redirectCommon = new PaletteRedirectTripleMetric(redirector,
                                                                                         _headerCommon.StateDisabled, _headerCommon.StateDisabled,
                                                                                         _headerCommon.StateNormal, _headerCommon.StateNormal);

            // Inform the button style to use the new redirector
            _headerPrimary.SetRedirector(redirectCommon);
            _headerSecondary.SetRedirector(redirectCommon);
            _headerDockInactive.SetRedirector(redirectCommon);
            _headerDockActive.SetRedirector(redirectCommon);
            _headerCalendar.SetRedirector(redirectCommon);
            _headerForm.SetRedirector(redirectCommon);
            _headerCustom1.SetRedirector(redirectCommon);
            _headerCustom2.SetRedirector(redirectCommon);
        }

        /// <summary>
        /// Initialize a new instance of the ViewControl class.
        /// </summary>
        /// <param name="rootControl">Top level visual control.</param>
        public ViewControl(VisualControl rootControl)
        {
            Debug.Assert(rootControl != null);

            // We use double buffering to reduce drawing flicker
            SetStyle(ControlStyles.OptimizedDoubleBuffer |
                     ControlStyles.AllPaintingInWmPaint |
                     ControlStyles.UserPaint, true);

            // We need to repaint entire control whenever resized
            SetStyle(ControlStyles.ResizeRedraw, true);

            // We are not selectable
            SetStyle(ControlStyles.Selectable, false);

            // Default
            _transparentBackground = false;
            _inDesignMode = false;

            // Remember incoming references
            _rootControl = rootControl;

            // Create delegate so child elements can request a repaint
            _needPaintDelegate = new NeedPaintHandler(OnNeedPaint);
        }

 /// <summary>
 /// Initialize a new instance of the KryptonPaletteForm class.
 /// </summary>
 /// <param name="redirect">Redirector to inherit values from.</param>
 /// <param name="backStyle">Background style.</param>
 /// <param name="borderStyle">Border style.</param>
 /// <param name="needPaint">Delegate for notifying paint requests.</param>
 public KryptonPaletteForm(PaletteRedirect redirect,
                           PaletteBackStyle backStyle,
                           PaletteBorderStyle borderStyle,
                           NeedPaintHandler needPaint)
     : base(redirect, backStyle, borderStyle, needPaint)
 {
 }

        /// <summary>
        /// Initialize a new instance of the ContextMenuProvider class.
        /// </summary>
        /// <param name="viewManager">View manager used to organize keyboard events.</param>
        /// <param name="menuCollection">Top level set of menu items.</param>
        /// <param name="viewColumns">Stack used for adding new columns.</param>
        /// <param name="palette">Local palette setting to use initially.</param>
        /// <param name="paletteMode">Palette mode setting to use initially.</param>
        /// <param name="redirector">Redirector used for obtaining palette values.</param>
        /// <param name="needPaintDelegate">Delegate used to when paint changes occur.</param>
        public AppButtonMenuProvider(ViewContextMenuManager viewManager,
                                     KryptonContextMenuItemCollection menuCollection,
                                     ViewLayoutStack viewColumns,
                                     IPalette palette,
                                     PaletteMode paletteMode,
                                     PaletteRedirect redirector,
                                     NeedPaintHandler needPaintDelegate)
        {
            // Store incoming state
            _viewManager = viewManager;
            _menuCollection = menuCollection;
            _viewColumns = viewColumns;
            _palette = palette;
            _paletteMode = paletteMode;
            _redirector = redirector;
            _needPaintDelegate = needPaintDelegate;

            // Create all other state
            _parent = null;
            _enabled = true;
            _canCloseMenu = true;
            _showHorz = KryptonContextMenuPositionH.After;
            _showVert = KryptonContextMenuPositionV.Top;
            _stateCommon = new PaletteContextMenuRedirect(redirector, needPaintDelegate);
            _stateNormal = new PaletteContextMenuItemState(_stateCommon);
            _stateDisabled = new PaletteContextMenuItemState(_stateCommon);
            _stateHighlight = new PaletteContextMenuItemStateHighlight(_stateCommon);
            _stateChecked = new PaletteContextMenuItemStateChecked(_stateCommon);
            _redirectorImages = new PaletteRedirectContextMenu(redirector, new ContextMenuImages(needPaintDelegate));
        }

        /// <summary>
        /// Initialize a new instance of the NavigatorOutlook class.
        /// </summary>
        /// <param name="navigator">Reference to owning navigator instance.</param>
        /// <param name="needPaint">Delegate for notifying paint requests.</param>
        public NavigatorOutlook(KryptonNavigator navigator,
                                NeedPaintHandler needPaint)
        {
            Debug.Assert(navigator != null);

            // Remember back reference
            _navigator = navigator;

            // Store the provided paint notification delegate
            NeedPaint = needPaint;

            // Create compound objects
            _full = new NavigatorOutlookFull(navigator, needPaint);
            _mini = new NavigatorOutlookMini(navigator, needPaint);

            // Default values
            _checkButtonStyle = ButtonStyle.NavigatorStack;
            _overflowButtonStyle = ButtonStyle.NavigatorOverflow;
            _borderEdgeStyle = PaletteBorderStyle.ControlClient;
            _orientation = Orientation.Vertical;
            _itemOrientation = ButtonOrientation.Auto;
            _headerSecondaryVisible = InheritBool.False;
            _textMoreButtons = _defaultMoreButtons;
            _textFewerButtons = _defaultFewerButtons;
            _textAddRemoveButtons = _defaultAddRemoveButtons;
            _showDropDownButton = true;
        }

        /// <summary>
        /// Initialize a new instance of the KryptonPaletteControls class.
        /// </summary>
        /// <param name="redirector">Palette redirector for sourcing inherited values.</param>
        /// <param name="needPaint">Delegate for notifying paint requests.</param>
        internal KryptonPaletteControls(PaletteRedirect redirector,
                                        NeedPaintHandler needPaint)
        {
            Debug.Assert(redirector != null);

            // Create the button style specific and common palettes
            _controlCommon = new KryptonPaletteControl(redirector, PaletteBackStyle.ControlClient, PaletteBorderStyle.ControlClient, needPaint);
            _controlClient = new KryptonPaletteControl(redirector, PaletteBackStyle.ControlClient, PaletteBorderStyle.ControlClient, needPaint);
            _controlAlternate = new KryptonPaletteControl(redirector, PaletteBackStyle.ControlAlternate, PaletteBorderStyle.ControlAlternate, needPaint);
            _controlGroupBox = new KryptonPaletteControl(redirector, PaletteBackStyle.ControlGroupBox, PaletteBorderStyle.ControlGroupBox, needPaint);
            _controlToolTip = new KryptonPaletteControl(redirector, PaletteBackStyle.ControlToolTip, PaletteBorderStyle.ControlToolTip, needPaint);
            _controlRibbon = new KryptonPaletteControl(redirector, PaletteBackStyle.ControlRibbon, PaletteBorderStyle.ControlRibbon, needPaint);
            _controlRibbonAppMenu = new KryptonPaletteControl(redirector, PaletteBackStyle.ControlRibbonAppMenu, PaletteBorderStyle.ControlRibbonAppMenu, needPaint);
            _controlCustom1 = new KryptonPaletteControl(redirector, PaletteBackStyle.ControlCustom1, PaletteBorderStyle.ControlCustom1, needPaint);

            // Create redirectors for inheriting from style specific to style common
            PaletteRedirectDouble redirectCommon = new PaletteRedirectDouble(redirector, _controlCommon.StateDisabled, _controlCommon.StateNormal);

            // Inform the button style to use the new redirector
            _controlClient.SetRedirector(redirectCommon);
            _controlAlternate.SetRedirector(redirectCommon);
            _controlGroupBox.SetRedirector(redirectCommon);
            _controlToolTip.SetRedirector(redirectCommon);
            _controlRibbon.SetRedirector(redirectCommon);
            _controlRibbonAppMenu.SetRedirector(redirectCommon);
            _controlCustom1.SetRedirector(redirectCommon);
        }

        /// <summary>
        /// Initialize a new instance of the KryptonPaletteTabButtons class.
        /// </summary>
        /// <param name="redirector">Palette redirector for sourcing inherited values.</param>
        /// <param name="needPaint">Delegate for notifying paint requests.</param>
        internal KryptonPaletteTabButtons(PaletteRedirect redirector,
                                       NeedPaintHandler needPaint)
        {
            Debug.Assert(redirector != null);

            // Create the button style specific and common palettes
            _tabCommon = new KryptonPaletteTabButton(redirector, PaletteBackStyle.TabHighProfile, PaletteBorderStyle.TabHighProfile, PaletteContentStyle.TabHighProfile, needPaint);
            _tabHighProfile = new KryptonPaletteTabButton(redirector, PaletteBackStyle.TabHighProfile, PaletteBorderStyle.TabHighProfile, PaletteContentStyle.TabHighProfile, needPaint);
            _tabStandardProfile = new KryptonPaletteTabButton(redirector, PaletteBackStyle.TabStandardProfile, PaletteBorderStyle.TabStandardProfile, PaletteContentStyle.TabStandardProfile, needPaint);
            _tabLowProfile = new KryptonPaletteTabButton(redirector, PaletteBackStyle.TabLowProfile, PaletteBorderStyle.TabLowProfile, PaletteContentStyle.TabLowProfile, needPaint);
            _tabDock = new KryptonPaletteTabButton(redirector, PaletteBackStyle.TabDock, PaletteBorderStyle.TabDock, PaletteContentStyle.TabDock, needPaint);
            _tabDockAutoHidden = new KryptonPaletteTabButton(redirector, PaletteBackStyle.TabDockAutoHidden, PaletteBorderStyle.TabDockAutoHidden, PaletteContentStyle.TabDockAutoHidden, needPaint);
            _tabOneNote = new KryptonPaletteTabButton(redirector, PaletteBackStyle.TabOneNote, PaletteBorderStyle.TabOneNote, PaletteContentStyle.TabOneNote, needPaint);
            _tabCustom1 = new KryptonPaletteTabButton(redirector, PaletteBackStyle.TabCustom1, PaletteBorderStyle.TabCustom1, PaletteContentStyle.TabCustom1, needPaint);
            _tabCustom2 = new KryptonPaletteTabButton(redirector, PaletteBackStyle.TabCustom2, PaletteBorderStyle.TabCustom2, PaletteContentStyle.TabCustom2, needPaint);
            _tabCustom3 = new KryptonPaletteTabButton(redirector, PaletteBackStyle.TabCustom3, PaletteBorderStyle.TabCustom3, PaletteContentStyle.TabCustom3, needPaint);

            // Create redirectors for inheriting from style specific to style common
            PaletteRedirectTriple redirectCommon = new PaletteRedirectTriple(redirector,
                                                                             _tabCommon.StateDisabled, _tabCommon.StateNormal,
                                                                             _tabCommon.StatePressed, _tabCommon.StateTracking,
                                                                             _tabCommon.StateSelected,_tabCommon.OverrideFocus);
            // Inform the button style to use the new redirector
            _tabHighProfile.SetRedirector(redirectCommon);
            _tabStandardProfile.SetRedirector(redirectCommon);
            _tabLowProfile.SetRedirector(redirectCommon);
            _tabDock.SetRedirector(redirectCommon);
            _tabDockAutoHidden.SetRedirector(redirectCommon);
            _tabOneNote.SetRedirector(redirectCommon);
            _tabCustom1.SetRedirector(redirectCommon);
            _tabCustom2.SetRedirector(redirectCommon);
            _tabCustom3.SetRedirector(redirectCommon);
        }

        /// <summary>
        /// Initialize a new instance of the ViewDrawRibbonGroupSeparator class.
        /// </summary>
        /// <param name="ribbon">Reference to owning ribbon control.</param>
        /// <param name="ribbonSeparator">Reference to group separator definition.</param>
        /// <param name="needPaint">Delegate for notifying paint requests.</param>
        public ViewDrawRibbonGroupSeparator(KryptonRibbon ribbon,
                                            KryptonRibbonGroupSeparator ribbonSeparator,
                                            NeedPaintHandler needPaint)
        {
            Debug.Assert(ribbon != null);
            Debug.Assert(ribbonSeparator != null);
            Debug.Assert(needPaint != null);

            _ribbon = ribbon;
            _ribbonSeparator = ribbonSeparator;
            _needPaint = needPaint;

            // Associate this view with the source component (required for design time selection)
            Component = _ribbonSeparator;

            if (_ribbon.InDesignMode)
            {
                // At design time we need to know when the user right clicks the label
                ContextClickController controller = new ContextClickController();
                controller.ContextClick += new MouseEventHandler(OnContextClick);
                MouseController = controller;
            }

            // Define back reference to view for the separator definition
            _ribbonSeparator.SeparatorView = this;

            // Hook into changes in the ribbon separator definition
            _ribbonSeparator.PropertyChanged += new PropertyChangedEventHandler(OnSeparatorPropertyChanged);

            // Default the preferred size
            _lastShape = PaletteRibbonShape.Office2007;
            _preferredSize = _preferredSize2007;
        }