Rollup Control

• Download demo - 42.4 Kb
• Download source code - 28.9 Kb

Introduction

I wanted the same graphic control that 3DSMax use in the pages 'create' and 'modify'. It is called a 'Rollup Window Control', which allows one to roll and unroll dialog boxes and to scroll them in the control's client area. The CRollupCtrl MFC class is the result. The class definition and implementation are in the files RollupCtrl.h and RollupCtrl.cpp, which are included in the demo project.

Features

• The control is derived from the CWnd class and can be created in any window.
• Pages are composed of a title, visualized by a button and a template (the dialog box).
• Pages can have several states. They can be rolled/unrolled but can also be active and inactive. To roll-unroll a page allows you to hide or show dialog box, respectively. To deactivate a page, lock the dialog box in the rolled state.
• The control is resizable and can also scroll pages. To scroll pages you can use the scrollbar or click inside an open dialog box and drag outside it to scroll the control.

Using the Control

To use this control in your application, add the RollupCtrl.h and RollupCtrl.cpp files to your project. The creation of the control is made by calling the CRollupCtrl::Create(...) method. There are two ways to insert a page.

1. RUNTIME_CLASS method

   Create a dialog box in the resource editor 'ex. IDD_PAGE1' with the WS_CHILD style. Generate the declaration and implementation files class (ex. CPage1Dlg) of your dialog box with the assistance of the MFC Classwizard. Then add DECLARE_DYNCREATE(CPage1Dlg) in the declaration of the class and IMPLEMENT_DYNCREATE(CPage1Dlg, CDialog) in the implementation.

   Then insert the page in this way pwndRollupCtrl->InsertPage("Caption", IDD_PAGE1, RUNTIME_CLASS(CPage1Dlg) );
   
   

2. CDialog::Create method

   As RUNTIME_CLASS method, create a dialog box in the resource editor. Generate the declaration and implementation files class of your dialog box. Then create the dialog box like this

   CPage1Dlg* pwndPage1 = new CPage1Dlg;<BR>pwndPage1->Create(MAKEINTRESOURCE(IDD_PAGE1), pwndRollupCtrl);

   and insert the page as follows
   
   pwndRollupCtrl->InsertPage("Caption", pwndPage1 );

This code has been tested only on W2K. If you have any other suggested improvements, please let me know for the next release.

User Methods

V1.00

BOOL     Create(DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID);
int      InsertPage(const char* caption, CDialog* pwndTemplate,
                   BOOL bAutoDestroyTpl=TRUE, int idx=-1);
int      InsertPage(const char* caption, UINT nIDTemplate, int idx=-1);
int      InsertPage(const char* caption, UINT nIDTemplate, 
                   CRuntimeClass* rtc, int idx=-1);
void     RemovePage(int idx);
void     RemoveAllPages();
void     ExpandPage(int idx, BOOL bExpand=TRUE);    
void     ExpandAllPages(BOOL bExpand=TRUE);
void     EnablePage(int idx, BOOL bEnable=TRUE);
void     EnableAllPages(BOOL bEnable=TRUE);
RC_PAGEINFO* CRollupCtrl::GetPageInfo(int idx); 

V1.01

void     ScrollToPage(int idx, BOOL bAtTheTop=TRUE);
int     MovePageAt(int idx, int newidx);
BOOL     IsPageExpanded(int idx);
BOOL     IsPageEnabled(int idx);
int     GetPagesCount();

V1.02

BOOL     IsAutoColumnsEnabled();
void     EnableAutoColumns(BOOL bEnable=TRUE);
BOOL     SetColumnWidth(int nWidth);
BOOL     SetPageCaption(int idx, LPCSTR caption); 

History

• v1.0
  31/03/01: Created
  
• v1.01
  13/04/01: Added ScrollToPage method
  Added automatic page visibility to ExpandPage method
  Added Mousewheel support
  15/04/01: Added mouse capture checking on WM_MOUSEMOVE dialog msg
  Added SetCursor on Dialog WM_SETCURSOR
  Added MovePageAt method
  17/04/01: Fixed Group Boxes displayed over Buttons
  20/04/01: Added IsPageExpanded and IsPageExpanded methods
  Added PopupMenu
  Added Button subclassing (now button's focus not drawn)
  
• v1.02
  10/06/02: Added pages dividing up into columns
  17/06/02: Added SetPageCaption method
  19/11/02: Fixed _RemovePage method
  29/10/03: Background color for AfxRegisterWndClass