www.pudn.com > mod_rssim6.zip > ColorPickerCB.h

// ColorPickerCB.cpp 
// 
// (c) 1998 James R. Twine 
// 
// Based On Code That Was Found On www.codeguru.com, And Was  
// © 1997 Baldvin Hansson 
// 
//	Create A ComboBox (Drop List) And Set The 
//	"Owner Draw Fixed" And "Has Strings" Styles/Checkboxes, And 
//	Map This Class To It.  See?  Simple! 
// 
 
 
#if !defined(AFX_COLORPICKERCB_H__C74333B7_A13A_11D1_ADB6_C04D0BC10000__INCLUDED_) 
#define AFX_COLORPICKERCB_H__C74333B7_A13A_11D1_ADB6_C04D0BC10000__INCLUDED_ 
 
#if _MSC_VER >= 1000 
#pragma once 
#endif // _MSC_VER >= 1000 
 
// 
//	Constants... 
// 
#define		CCB_MAX_COLORS			16							// Colors In List 
#define		CCB_MAX_COLOR_NAME		16							// Max Chars For Color Name - 1 
 
 
// 
//	Internal Structure For Color/Name Storage... 
// 
struct	SColorAndName 
{ 
	/**/	SColorAndName() 
	{ 
		ZeroMemory( this, sizeof( SColorAndName ) );		// Init Structure 
	}; 
	/**/	SColorAndName( COLORREF crColor, PCSTR cpColor ) 
	{ 
		ZeroMemory( this, sizeof( SColorAndName ) );		// Init Structure 
		m_crColor = crColor;								// Set Color RGB Value 
		strncpy( m_cColor, cpColor, CCB_MAX_COLOR_NAME );	// Set Color Name 
	}; 
	COLORREF	m_crColor;									// Actual Color RGB Value 
	char		m_cColor[ CCB_MAX_COLOR_NAME ];				// Actual Name For Color 
}; 
 
 
 
class CColorPickerCB : public CComboBox 
{ 
// Construction 
public: 
	CColorPickerCB(); 
 
// Attributes 
private: 
	bool			m_bInitialized;							// Control Initialized? 
	CString			m_sColorName;							// Name Of Selected Color 
	static 
	SColorAndName	ms_pColors[ CCB_MAX_COLORS ];			// Array Of Colors And Names 
 
private: 
 
	void			Initialize( void );						// Initialize Control/Colors 
 
public: 
	COLORREF		GetSelectedColorValue( void );			// Get Selected Color Value 
	CString			GetSelectedColorName( void );			// Get Selected Color Name 
 
	void			SetSelectedColorValue( COLORREF crClr );// Set Selected Color Value 
	void			SetSelectedColorName( PCSTR cpColor );	// Set Selected Color Name 
 
	bool			RemoveColor( PCSTR cpColor );			// Remove Color From List 
	bool			RemoveColor( COLORREF crClr );			// Remove Color From List 
	 
	int				AddColor( PCSTR cpNam, COLORREF crClr );// Insert A New Color 
 
// Overrides 
	// ClassWizard generated virtual function overrides 
	//{{AFX_VIRTUAL(CColorPickerCB) 
	protected: 
	virtual void PreSubclassWindow(); 
	//}}AFX_VIRTUAL 
	virtual void DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct); 
 
// Implementation 
public: 
	virtual	~CColorPickerCB(); 
 
	// Generated message map functions 
protected: 
	//{{AFX_MSG(CColorPickerCB) 
	afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct); 
	//}}AFX_MSG 
 
	DECLARE_MESSAGE_MAP() 
}; 
 
///////////////////////////////////////////////////////////////////////////// 
 
//{{AFX_INSERT_LOCATION}} 
// Microsoft Developer Studio will insert additional declarations immediately before the previous line. 
 
#endif // !defined(AFX_COLORPICKERCB_H__C74333B7_A13A_11D1_ADB6_C04D0BC10000__INCLUDED_) 
 
 
 
 
 
/* 
I found it useful to add some custom DDX routines to aid get/set of dialog control values from/to member variables. 
 
So here they are. Just add the declarations to ColorPickerCB.h, and the definitions to ColorPickerCB.cpp: 
 
// DECLARATIONS 
 
// Gets/sets color value from/to COLORREF member variable 
void DDX_ColorPicker(CDataExchange* pDX_, int nIDC_, COLORREF& prgbColor_); 
 
// Gets/sets color name from/to CString member variable 
void DDX_ColorPicker(CDataExchange* pDX_, int nIDC_, CString& cName_); 
 
// DEFINITIONS 
 
void DDX_ColorPicker(CDataExchange* pDX_, int nIDC_, COLORREF& rgbColor_) 
{ 
	HWND hWndCtrl = pDX_->PrepareCtrl(nIDC_); 
	ASSERT(hWndCtrl); 
	 
	CColorPickerCB* pPicker = (CColorPickerCB*) CWnd::FromHandle(hWndCtrl); 
	ASSERT(pPicker); 
	 
	if (!pDX_->m_bSaveAndValidate) 
	{ 
		pPicker->SetSelectedColorValue(rgbColor_); 
	} 
	else 
	{ 
		rgbColor_ = pPicker->GetSelectedColorValue(); 
	} 
} 
 
 
void DDX_ColorPicker(CDataExchange* pDX_, int nIDC_, CString& cName_) 
{ 
	HWND hWndCtrl = pDX_->PrepareCtrl(nIDC_); 
	ASSERT(hWndCtrl); 
	 
	CColorPickerCB* pPicker = (CColorPickerCB*) CWnd::FromHandle(hWndCtrl); 
	ASSERT(pPicker); 
	 
	if (!pDX_->m_bSaveAndValidate) 
	{ 
		pPicker->SetSelectedColorName(cName_); 
	} 
	else 
	{ 
		cName_ = pPicker->GetSelectedColorName(); 
	} 
} 
 
Declare the following variables in the dialog header file: 
 
CColorPickerCB m_cColorCtl;	// Required to subclass combo 
COLORREF 	m_rgbColor; 	// Optional - if want COLORREF value 
CString			m_szColor;		// Optional - if want color name 
 
 
And then modify DoDataExchange to look something like this: 
 
void CMyDialog::DoDataExchange(CDataExchange* pDX_) 
{ 
	CDialog::DoDataExchange(pDX_); 
	//{{AFX_DATA_MAP(CMyDialog) 
	DDX_Control(pDX_, IDC_COLOR,	m_cColorCtl);	// Required to subclass combo 
	//}}AFX_DATA_MAP 
	 
	DDX_ColorPicker(pDX_, IDC_COLOR, m_rgbColor);	// Optional - Maps COLORREF to member variable m_rgbColor 
	DDX_ColorPicker(pDX_, IDC_COLOR, m_szColor); 	// Optional - Maps color name to member variable m_szColor 
} 
 
And thats it! It should be a mite easier to set-up your color dialog! 
*/