JamShellBreadCrumbBar.TJamShellHistoryPane

A TJamShellHistoryPane contains buttons to control the history of visited folders.

Syntax

Pascal

TJamShellHistoryPane = class(TCustomControl, IJamShellControl);

Remarks

Users can move backward, forward and up to the parent folder. A history list popup menu occurs when clicking on the drop down arrow. This class manages its own history and only needs a TJamShellLink to work. If executed under Windows Vista or later the same navigation icons from the Windows Explorer are used. It is possible to replace them with custom bitmaps by using the ImageList property. A TJamShellHistoryPane also supports VCL styles.

See Also

TJamShellBreadCrumbBar

Namespace

JamShellBreadCrumbBar

Public Methods

JamShellBreadCrumbBar.TJamShellHistoryPane

	Name	Description
	constructor Create(pOwner: TComponent); override;	Constructor for creating a TJamShellHistoryPane instance.
	destructor Destroy; override;	Destructor for destroying a TJamShellHistoryPane instance.

IJamShellControl Methods

	Name	Description
	procedure FileChanged(FolderPIDL: IItemIdList; FilePIDL: IItemIdList);	This method is called by the ShellLink instance if the currently selected item has changed.
	function getShellLink: TJamShellLink;	Getter method for the ShellLink property.
	function GoUp: Boolean;	This method indicates that the callee should go up one level and display the contents of the current folder's parent folder.
	procedure PathChanged(FolderPIDL: IItemIdList);	This method is called by the ShellLink instance if the currently displayed folder has changed.
	procedure Refresh(pRefreshLevel: TRefreshLevel; pItemIdList: IItemIdList = nil);	This method indicates that the control should perform a refresh of its contents.
	procedure SelectAll;	This method indicates that the callee should select all item it currently displays.
	procedure setShellLink(aValue: TJamShellLink);	Setter method for the ShellLink property.

JamShellBreadCrumbBar.TJamShellHistoryPane

	Name	Description
	procedure Clear;	Clears the history.
	procedure MoveBack;	Moves one step back in history of visited folders.
	procedure MoveForward;	Moves one step forward in history of visited folders.
	procedure MoveUp;	Moves up to the parent folder.
	procedure Repaint; override;	Repaints the control.

IJamShellControl Properties

	Name	Description
	property ShellLink: TJamShellLink read getShellLink write setShellLink;	The TJamShellLink instance to which the current control connected.

JamShellBreadCrumbBar.TJamShellHistoryPane

	Name	Description
	property Align;	Determines how the control aligns within its container (parent control).
	property Anchors;	Specifies how the control is anchored to its parent.
	property AutoSize default True;	Specifies whether the control sizes itself automatically to accommodate its contents.
	property BackwardButton: TJamImageFromImageList read fNavigateBackward stored fCustomDraw;	The backward button.
	property Color;	Specifies the background color of the control.
	property ColorDisabled: TColor read fColorDisabled write SetColorDisabled default clInactiveCaption;	Gets or sets the disabled button color.
	property ColorHot: TColor read fColorHot write SetColorHot default clHighlight;	Gets or sets the hot button color.
	property ColorNormal: TColor read fColorNormal write SetColorNormal default clGray;	Gets or sets the normal button color.
	property ColorPressed: TColor read fColorPressed write SetColorPressed default clHotLight;	Gets or sets the pressed button color.
	property DoubleBuffered default True;	Determines whether the control's image is rendered directly to the window or painted to an in-memory bitmap first.
	property DropDownButton: TJamImageFromImageList read fDropDown stored fCustomDraw;	The drop down button.
	property Enabled;	Controls whether the control responds to mouse, keyboard, and timer events.
	property ForwardButton: TJamImageFromImageList read fNavigateForward stored fCustomDraw;	The forward button.
	property ImageList: TImageList read fCustomImages write SetCustomImages;	A TImageList containing the custom button images.
	property OnMoveBackward: TNotifyEvent read fOnMoveBackward write fOnMoveBackward;	Occurs when user moves back in history of visited folders.
	property OnMoveForward: TNotifyEvent read fOnMoveForward write fOnMoveForward;	Occurs when user moves forward in history of visited folders.
	property OnMoveUp: TNotifyEvent read fOnMoveUp write fOnMoveUp;	Occurs when user moves up to the parent directory.
	property ParentColor;	Determines where a control looks for its color information.
	property ParentShowHint;	Specifies where a control looks to find out if its Help Hint should be shown.
	property ShellLink: TJamShellLink read GetShellLink write SetShellLink;	Connects this component to a TJamShellLink in order to synchronize several shell controls.
	property ShowHint;	Specifies whether to show the Help Hint when the mouse pointer moves over the control.
	property StyleElements;	Specifies the style elements that are used by the control.
	property StyleName;	Specifies the style name for this control.
	property UpwardButton: TJamImageFromImageList read fNavigateUp stored fCustomDraw;	The upward button.
	property Visible;	Determines whether the component appears on screen.

Links

JamShellBreadCrumbBar, Legend, Members, Public Methods, IJamShellControl Methods, IJamShellControl Properties, See Also

Contents | Index | Home