// XTPHeaderCtrl.h interface for the CXTPHeaderCtrl class.
//
// This file is a part of the XTREME CONTROLS MFC class library.
// (c)1998-2012 Codejock Software, All Rights Reserved.
//
// THIS SOURCE FILE IS THE PROPERTY OF CODEJOCK SOFTWARE AND IS NOT TO BE
// RE-DISTRIBUTED BY ANY MEANS WHATSOEVER WITHOUT THE EXPRESSED WRITTEN
// CONSENT OF CODEJOCK SOFTWARE.
//
// THIS SOURCE CODE CAN ONLY BE USED UNDER THE TERMS AND CONDITIONS OUTLINED
// IN THE XTREME TOOLKIT PRO LICENSE AGREEMENT. CODEJOCK SOFTWARE GRANTS TO
// YOU (ONE SOFTWARE DEVELOPER) THE LIMITED RIGHT TO USE THIS SOFTWARE ON A
// SINGLE COMPUTER.
//
// CONTACT INFORMATION:
// support@codejock.com
// http://www.codejock.com
//
/////////////////////////////////////////////////////////////////////////////

//{{AFX_CODEJOCK_PRIVATE
#if !defined(__XTHEADERCTRL_H__)
#define __XTHEADERCTRL_H__
//}}AFX_CODEJOCK_PRIVATE

#if _MSC_VER >= 1000
#pragma once
#endif // _MSC_VER >= 1000

class CXTPImageManager;
class CXTPHeaderCtrlTheme;

//========================================================================
// Summary:
//     CXTPHeaderCtrl is a CHeaderCtrl derived class. It is used to create
//     a CXTPHeaderCtrl window similar to CHeaderCtrl, but with additional functionality.
// Remarks:
//     A "header control" is a window that is usually positioned above columns of text
//     or numbers. It contains a title for each column, and it can be divided
//     into parts. The user can drag the dividers that separate the parts to
//     set the width of each column.
//
//     Use a header control, represented by class CXTPHeaderCtrl, to display
//     column headers for a columnar list. For example, a header control would
//     be useful for implementing column controls in a spreadsheet.
//
//     The header control is usually divided into parts, called "header items",
//     each bearing a title for the associated column of text or numbers. Depending
//     on the styles you set, you can provide a number of direct ways for users
//     to manipulate the header items.
//========================================================================
class _XTP_EXT_CLASS CXTPHeaderCtrl : public CHeaderCtrl
{
	DECLARE_DYNAMIC(CXTPHeaderCtrl)

public:
	//--------------------------------------------------------------------
	// Summary:
	//     Constructs a CXTPHeaderCtrl object
	//--------------------------------------------------------------------
	CXTPHeaderCtrl();

	//--------------------------------------------------------------------
	// Summary:
	//     Destroys a CXTPHeaderCtrl object, handles cleanup and deallocation
	//--------------------------------------------------------------------
	virtual ~CXTPHeaderCtrl();

public:

	//--------------------------------------------------------------------
	// Summary:
	//     Call this member function to enable auto-sizing for the header control.
	//     This will cause the columns in the list control to be sized to fit
	//     in the available space when the list control is resized.
	// Parameters:
	//     bEnable - true to enable an auto-sizing header control.
	//--------------------------------------------------------------------
	void EnableAutoSize(bool bEnable = true);

	//--------------------------------------------------------------------
	// Summary:
	//     Call this member function to freeze a column in the header control.
	//     Freezing a column will disable sizing for the column.
	// Parameters:
	//     iCol - Index of the column to freeze.
	//--------------------------------------------------------------------
	void FreezeColumn(int iCol);

	//--------------------------------------------------------------------
	// Summary:
	//     Call this member function to thaw a column in the header control.
	//     Thawing a column will enable sizing for the column if it was previously
	//     frozen.
	// Parameters:
	//     iCol - Index of the column to thaw.
	//--------------------------------------------------------------------
	void ThawColumn(int iCol);

	//--------------------------------------------------------------------
	// Summary:
	//     Call this member function to thaw all column in the header control.
	//     This will will enable sizing for any column that was previously
	//     frozen.
	//--------------------------------------------------------------------
	void ThawAllColumns();

	//--------------------------------------------------------------------
	// Summary:
	//     Call this member function to determine if the specified column is
	//     frozen.
	// Parameters:
	//     iCol - Index of the column to check.
	// Returns:
	//     true if the column is frozen, otherwise returns false.
	//--------------------------------------------------------------------
	bool IsColFrozen(int iCol);

	//--------------------------------------------------------------------
	// Summary:
	//     Call this member to set the minimum size for auto-sizing columns.
	//     The minimum size represents the smallest size that all columns can
	//     be sized to.
	// Parameters:
	//     iMinSize - Minimum column size.
	//--------------------------------------------------------------------
	void SetMinSize(int iMinSize);

	//--------------------------------------------------------------------
	// Summary:
	//     This member function will set the sort image for the specified column.
	// Parameters:
	//     iSortCol - Zero-based index of the column to set the sort image for.
	//     bSortAsc - TRUE if ascending, otherwise FALSE.
	// Returns:
	//     A zero-based index of the previously sorted column.
	//--------------------------------------------------------------------
	int SetSortImage(int iSortCol, BOOL bSortAsc);

	//--------------------------------------------------------------------
	// Summary:
	//     Call this member function to return the index to the currently sorted
	//     column.
	// Parameters:
	//     pbSortAsc - Set to TRUE if ascending, otherwise FALSE.
	// Returns:
	//     The index of the currently sorted column.
	//--------------------------------------------------------------------
	int GetSortedCol(BOOL* pbSortAsc = NULL);

	//--------------------------------------------------------------------
	// Summary:
	//     Call this member function to set the bitmap image for the specified
	//     header item.
	// Parameters:
	//     iCol      - Zero-based index of the column to set the sort image for.
	//     uBitmapID - Resource ID of the bitmap to use.
	//     bRemove   - TRUE to remove a bitmap, FALSE if adding a bitmap.
	//     dwRemove  - Indicates the header format style to remove, see HD_ITEM structure.
	//     crMask    - Color used to generate the mask. Each pixel of
	//                 this color in the given bitmap is changed to black
	//                 and the corresponding bit in the mask is set to one.
	// Example:
	//     The following example demonstrates the use of SetBitmap.
	// <code>
	// // add bitmap images.
	// m_header.SetBitmap(0, IDB_COLUMN_0, FALSE, RGB(0, 255, 0));
	// m_header.SetBitmap(1, IDB_COLUMN_1, FALSE, RGB(0, 255, 0));
	// m_header.SetBitmap(2, IDB_COLUMN_2, FALSE, RGB(0, 255, 0));
	// </code>
	//--------------------------------------------------------------------
	void SetBitmap(int iCol, UINT uBitmapID, DWORD dwRemove = NULL);
	void SetBitmap(int iCol, UINT uBitmapID, BOOL bRemove, COLORREF crMask); //<combine CXTPHeaderCtrl::SetBitmap@int@UINT@DWORD>

	//--------------------------------------------------------------------
	// Summary:
	//     Call this member function to determine if the specified header
	//     item is pressed (selected).
	// Parameters:
	//     iItem - Index of the header item to check.
	// Returns:
	//     TRUE if the specified header item is pressed (selected).
	//--------------------------------------------------------------------
	virtual BOOL ItemPressed(int iItem);

	// ------------------------------------------------------------------
	// Summary:
	//     This member function is called whenever the theme has changed.
	// Remarks:
	//     Override this member function to add additional functionality
	//     whenever the control theme changes.
	// ------------------------------------------------------------------
	virtual void OnThemeChanged();

	//--------------------------------------------------------------------
	// Summary:
	//     This member function is called to check if the header control
	//     is using a theme.
	// Returns:
	//     TRUE if a theme is used, otherwise FALSE.
	//--------------------------------------------------------------------
	BOOL IsThemeValid() const;

	// --------------------------------------------------------------------------
	// Summary:
	//     Tests a point to determine which header item, if any, is at the
	//     specified point.
	// Parameters:
	//     pt -      POINT structure that contains the point to be hit test, in
	//               client coordinates.
	// pFlags -  Variable that receives information about the results of a hit
	//               test. This member can be one or more of the values listed in
	//               the Remarks section.
	// Remarks:
	//     pFlags can be one or more of the following values:
	//     * <b>HHT_ABOVE</b> The point is above the header control's
	//           bounding rectangle.
	//     * <b>HHT_BELOW</b> The point is below the header control's
	//           bounding rectangle.
	//     * <b>HHT_NOWHERE</b> The point is inside the header control's
	//           bounding rectangle but is not over a header item.
	//     * <b>HHT_ONDIVIDER</b> The point is on the divider between two
	//           header items.
	//     * <b>HHT_ONDIVOPEN</b> The point is on the divider of an item
	//           that has a width of zero. Dragging the divider reveals the item
	//           instead of resizing the item to the left of the divider.
	//     * <b>HHT_ONHEADER</b> The point is inside the header control's
	//           bounding rectangle.
	//     * <b>HHT_ONFILTER</b> Version 5.80 The point is over the
	//           filter area.
	//     * <b>HHT_ONFILTERBUTTON</b> Version 5.80 The point is on the
	//           filter button.
	//     * <b>HHT_TOLEFT</b> The point is to the left of the header
	//           control's bounding rectangle.
	//     * <b>HHT_TORIGHT</b> The point is to the right of the header
	//           control's bounding rectangle.
	// Returns:
	//     If the hit test is successful, contains the index of the item at
	//     the hit test point, if any, or - 1 otherwise.
	// --------------------------------------------------------------------------
	int HitTest(CPoint pt, UINT* pFlags = NULL) const;

	//--------------------------------------------------------------------
	// Summary:
	//     Called by the header control to recalculate the size and layout
	//     for the header control and header items.
	// Returns:
	//     TRUE if successful, otherwise FALSE.
	//--------------------------------------------------------------------
	BOOL RecalcLayout();

	//--------------------------------------------------------------------
	// Summary:
	//     This member function must be called after creation to initialize
	//     the font that the header will use.
	// Parameters:
	//     bBoldFont - TRUE if the header's font should be bold.
	//--------------------------------------------------------------------
	virtual void InitializeHeader(BOOL bBoldFont);

	//--------------------------------------------------------------------
	// Summary:
	//     This member function is called to associate a menu and toolbar
	//     resource with the context menu.
	// Parameters:
	//     popupMenuID - Resource ID for the popup menu used with the header.
	//     nPos        - Position of the submenu to be displayed.
	//--------------------------------------------------------------------
	virtual void SetMenuID(UINT popupMenuID, int nPos = 0);

	//--------------------------------------------------------------------
	// Summary:
	//     This member function can be used to toggle the font from bold to normal.
	// Parameters:
	//     bBoldFont - TRUE if the header's font should be bold.
	//--------------------------------------------------------------------
	virtual void SetFontBold(BOOL bBoldFont = TRUE);

	//--------------------------------------------------------------------
	// Summary:
	//     Call this member function to enable or disable the column sort arrow.
	// Parameters:
	//     bSortArrow - Set to TRUE to draw the column sort arrow.
	//--------------------------------------------------------------------
	virtual void ShowSortArrow(BOOL bSortArrow);

	//--------------------------------------------------------------------
	// Summary:
	//     Call this member function to set the text justification for the
	//     header control.
	// Parameters:
	//     nFlag - Text alignment, either LVCFMT_CENTER, LVCFMT_LEFT, or LVCFMT_RIGHT.
	// Returns:
	//     TRUE if successful, otherwise returns FALSE.
	//--------------------------------------------------------------------
	virtual BOOL SetAlingment(int nFlag);

	//--------------------------------------------------------------------
	// Summary:
	//     Call this member function to return the current sorting order.
	// Returns:
	//     TRUE if the sorting order is ascending, otherwise returns FALSE.
	//--------------------------------------------------------------------
	BOOL GetAscending() const;

	//--------------------------------------------------------------------
	// Summary:
	//     Call this member function to enable or disable the popup menu display whenever
	//     a user right clicks on the header control.
	// Parameters:
	//     bEnableMenus - TRUE to enable popup menus, and FALSE to disable.
	//--------------------------------------------------------------------
	void EnablePopupMenus(BOOL bEnableMenus);

	//--------------------------------------------------------------------
	// Summary:
	//     Call this member function to determine if the header control displays
	//     a sort arrow.
	// Returns:
	//     TRUE if the header control displays a sort arrow, otherwise returns FALSE.
	//--------------------------------------------------------------------
	BOOL HasSortArrow();

	//--------------------------------------------------------------------
	// Summary:
	//     Call this member function to resize all header columns equally
	//     to fit the available client area.
	//--------------------------------------------------------------------
	void ResizeColumnsToFit();

	//-----------------------------------------------------------------------
	// Summary:
	//     Retrieves Image manager associated with Header.
	// Returns:
	//     Pointer to the image manager object that stores the images in
	//     the Header.
	//-----------------------------------------------------------------------
	CXTPImageManager* GetImageManager() const;

	//-----------------------------------------------------------------------
	// Summary:
	//     Call this method to assign new image manager.
	// Parameters:
	//     pImageManager - Pointer to the image manager object that stores the
	//     images in the Header.
	//-----------------------------------------------------------------------
	void SetImageManager(CXTPImageManager* pImageManager);

	//-----------------------------------------------------------------------
	// Summary:
	//     Call this member to switch the visual theme of the control.
	// Parameters:
	//     eTheme  - New window theme. Can be any of the values listed in the Remarks section.
	//     eScheme - Color scheme used the the theme.  Can be any of the values listed in the Remarks section.
	// Remarks:
	//     eTheme can be one of the following values:
	//     * <b>xtpControlThemeDefault</b> Use default theme.
	//     * <b>xtpControlThemeNativeWinXP</b> Use Windows Explorer theme.
	//     * <b>xtpControlThemeOfficeXP</b> Use Office XP theme.
	//     * <b>xtpControlThemeOffice2003</b> Use Office 2003 theme.
	//-----------------------------------------------------------------------
	BOOL SetTheme(XTPControlTheme eTheme);
	BOOL SetTheme(CXTPHeaderCtrlTheme* pTheme);

	//-----------------------------------------------------------------------
	// Summary:
	//     Call this member function to get a pointer to the currently selected theme.
	// Returns:
	//     A pointer to a CXTPHeaderCtrlTheme object representing the currently selected theme.
	//-----------------------------------------------------------------------
	CXTPHeaderCtrlTheme* GetTheme();

protected:

	//--------------------------------------------------------------------
	// Summary:
	//     This member function is used by the header control to determine
	//     the text alignment for the system locale.
	// Returns:
	//     true if the text alignment is right-to-left, and false if the text
	//     alignment is left-to-right.
	//--------------------------------------------------------------------
	virtual bool DetermineRTL();

	//--------------------------------------------------------------------
	// Summary:
	//     This member function is used by the header control to auto-size the
	//     columns for the list control.
	// Parameters:
	//     iNewWidth - New width to resize all columns to.
	//--------------------------------------------------------------------
	virtual void ApplyFieldWidths(int iNewWidth);

	//--------------------------------------------------------------------
	// Summary:
	//     This member function is used by the header control to determine
	//     the new width for auto-sized columns and resize accordingly.
	// Parameters:
	//     iNewWidth - New width to resize all columns to.  If iNewWidth
	//                 is '0', the columns are equally sized to fit the
	//                 available client area.
	//--------------------------------------------------------------------
	virtual void FitFieldWidths(int iNewWidth);

	//--------------------------------------------------------------------
	// Summary:
	//     This member function is used by the header control to determine
	//     the total width of all frozen columns in the header control.
	// Returns:
	//     The combined size in pixels of all frozen columns.
	//--------------------------------------------------------------------
	virtual int GetFrozenColWidth();

	//--------------------------------------------------------------------
	// Summary:
	//     Called to send WM_NOTIFY to tell parent's owner that the column needs
	//     to be sorted.
	// Parameters:
	//     iIndex - Index of the column to be sorted.
	//--------------------------------------------------------------------
	void SendNotify(int iIndex);

	//-----------------------------------------------------------------------
	// Summary:
	//     Call this member function to refresh theme colors and redraw the control.
	//-----------------------------------------------------------------------
	virtual void RefreshMetrics();

	//{{AFX_VIRTUAL(CXTPHeaderCtrl)
	virtual BOOL OnWndMsg(UINT message, WPARAM wParam, LPARAM lParam, LRESULT* pResult);
	//}}AFX_VIRTUAL

protected:
//{{AFX_CODEJOCK_PRIVATE
	DECLARE_MESSAGE_MAP()

	//{{AFX_MSG(CXTPHeaderCtrl)
	afx_msg void OnWindowPosChanging(WINDOWPOS FAR* lpwndpos);
	afx_msg BOOL OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message);
	afx_msg void OnPaint();
	afx_msg LRESULT OnPrintClient(WPARAM wParam, LPARAM /*lParam*/);
	afx_msg BOOL OnEraseBkgnd(CDC* pDC);
	afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
	afx_msg void OnLButtonUp(UINT nFlags, CPoint point);
	afx_msg void OnMouseMove(UINT nFlags, CPoint point);
	afx_msg void OnTimer(UINT_PTR nIDEvent);
	afx_msg LRESULT OnLayout(WPARAM wparam, LPARAM lparam);
	afx_msg void OnDestroy();
	afx_msg BOOL OnItemchanging(NMHDR* pNMHDR, LRESULT* pResult);
	afx_msg void OnRButtonDown(UINT nFlags, CPoint point);
	afx_msg void OnSortAsc();
	afx_msg void OnSortDsc();
	afx_msg void OnAlignLeft();
	afx_msg void OnAlignCenter();
	afx_msg void OnAlignRight();
	//}}AFX_MSG
	afx_msg LRESULT OnSetTheme(WPARAM wParam, LPARAM lParam);
//}}AFX_CODEJOCK_PRIVATE

protected:
	int                  m_iMinSize;      // Minimum column size for an auto-size header control.
	int                  m_nPos;          // Index of the popup menu contained in the menu.
	int                  m_iOverIndex;    // Column mouse is currently hovering.
	int                  m_nSortedCol;    // Last column pressed during sort.
	bool                 m_bRTL;          // Used internally to determine if text is right-to-left or left-to-right (depends on system locale).
	bool                 m_bAutoSize;     // true if the header control columns are auto-sizing.
	BOOL                 m_bEnableMenus;  // TRUE to disable the popup menu display.
	BOOL                 m_bAscending;    // Used, when column is pressed, to draw a sort arrow.
	BOOL                 m_bLBtnDown;     // TRUE if left mouse button is pressed.
	BOOL                 m_bPainted;      // Used during paint operations.
	UINT                 m_popupMenuID;   // Popup menu resource ID.
	CPoint               m_pt;            // Point where right click took place.
	CList<int, int&>     m_arFrozenCols;  // List of columns that are not sizable.
	CXTPHeaderCtrlTheme* m_pTheme;        // Points to the active theme.
	CXTPImageManager*    m_pImageManager; // Pointer to ImageManager associated with header.

	friend class CXTPHeaderCtrlTheme;
};

//////////////////////////////////////////////////////////////////////

AFX_INLINE BOOL CXTPHeaderCtrl::GetAscending() const {
	ASSERT(::IsWindow(m_hWnd)); return m_bAscending;
}
AFX_INLINE void CXTPHeaderCtrl::EnablePopupMenus(BOOL bEnableMenus) {
	m_bEnableMenus = bEnableMenus;
}
AFX_INLINE CXTPImageManager* CXTPHeaderCtrl::GetImageManager() const {
	return m_pImageManager;
}
AFX_INLINE CXTPHeaderCtrlTheme* CXTPHeaderCtrl::GetTheme() {
	return m_pTheme;
}

#endif // #if !defined(__XTHEADERCTRL_H__)