www.pudn.com > gui_Outlook.rar > CJComboBox.cpp

// CJComboBox.cpp : implementation file 
//  
// Copyright © 1998 Kirk Stowell  
// All Rights Reserved.  
//  
// Email: kstowel@sprynet.com  
// URL:   www.geocities.com/SiliconValley/Haven/8230  
//  
// This code may be used in compiled form in any way you desire. This 
// file may be redistributed unmodified by any means PROVIDING it is  
// not sold for profit without the authors written consent, and  
// providing that this notice and the authors name and all copyright  
// notices remains intact. If the source code in this file is used in  
// any  commercial application then a statement along the lines of  
// "Portions Copyright © 1998 Kirk Stowell" must be included in  
// the startup banner, "About" box or printed documentation. An email  
// letting me know that you are using it would be nice as well. That's  
// not much to ask considering the amount of work that went into this. 
// 
// This file is provided "as is" with no expressed or implied warranty. 
// The author accepts no liability for any damage/loss of business that 
// this product may cause. 
// 
// Expect bugs! 
//  
// Please use and enjoy, and let me know of any bugs/mods/improvements  
// that you have found/implemented and I will fix/incorporate them into  
// this file.  
// 
// ========================================================================== 
// HISTORY:	 
// ========================================================================== 
//			1.00	02 Oct 1998	- First release version. 
//			1.01	05 Oct 1998	- Fixed offset bug to use GetSystemMetrics(), 
//								  instead of hard coded values - 
//								  (Todd Brannam). 
//			1.02	02 Nov 1998 - Added OnSetFocus(), OnKillFocus() and 
//								  modified OnPaint() so the control remains 
//								  beveled until it actually looses focus - 
//								  (Vachik Hovhannissian). 
// ========================================================================== 
// 
///////////////////////////////////////////////////////////////////////////// 
 
#include "stdafx.h" 
#include "CJComboBox.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CCJComboBox 
 
CCJComboBox::CCJComboBox() 
{ 
	m_bLBtnDown  = false; 
} 
 
CCJComboBox::~CCJComboBox() 
{ 
} 
 
IMPLEMENT_DYNAMIC(CCJComboBox, CComboBox) 
 
BEGIN_MESSAGE_MAP(CCJComboBox, CComboBox) 
	//{{AFX_MSG_MAP(CCJComboBox) 
	ON_WM_MOUSEMOVE() 
	ON_WM_LBUTTONDOWN() 
	ON_WM_LBUTTONUP() 
	ON_WM_TIMER() 
	ON_WM_PAINT() 
	ON_WM_SETFOCUS() 
	ON_WM_KILLFOCUS() 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CCJComboBox message handlers 
 
void CCJComboBox::OnMouseMove(UINT nFlags, CPoint point)  
{ 
	SetTimer(1,10,NULL); 
	CComboBox::OnMouseMove(nFlags, point); 
} 
 
void CCJComboBox::OnLButtonDown(UINT nFlags, CPoint point)  
{ 
	m_bLBtnDown = true; 
	CComboBox::OnLButtonDown(nFlags, point); 
} 
 
void CCJComboBox::OnLButtonUp(UINT nFlags, CPoint point)  
{ 
	m_bLBtnDown = false; 
	Invalidate(); 
	CComboBox::OnLButtonUp(nFlags, point); 
} 
 
void CCJComboBox::OnTimer(UINT nIDEvent)  
{ 
	POINT pt; 
	GetCursorPos(&pt); 
	CRect rcItem; 
	GetWindowRect(&rcItem); 
 
	static bool bPainted = false; 
 
	// OnLButtonDown, show pressed. 
	if (m_bLBtnDown==true) { 
		KillTimer (1); 
		if (bPainted == true) { 
			DrawCombo(FC_DRAWPRESSD, ::GetSysColor(COLOR_BTNSHADOW), 
				::GetSysColor(COLOR_BTNHIGHLIGHT)); 
			bPainted = false; 
		} 
		return; 
	} 
 
	// If mouse leaves, show flat. 
	if (!rcItem.PtInRect(pt)) { 
		KillTimer (1); 
		if (bPainted == true) { 
			DrawCombo(FC_DRAWNORMAL, ::GetSysColor(COLOR_BTNFACE), 
				::GetSysColor(COLOR_BTNFACE)); 
			bPainted = false; 
		} 
		return; 
	} 
 
	// On mouse over, show raised. 
	else { 
		if (bPainted == true) 
			return; 
		else { 
			bPainted = true; 
			DrawCombo(FC_DRAWRAISED, ::GetSysColor(COLOR_BTNSHADOW), 
				::GetSysColor(COLOR_BTNHIGHLIGHT)); 
		} 
	} 
	 
	CComboBox::OnTimer(nIDEvent); 
} 
 
void CCJComboBox::OnPaint()  
{ 
	ModifyStyleEx (WS_EX_DLGMODALFRAME | WS_EX_CLIENTEDGE | WS_EX_STATICEDGE, 
		0, SWP_FRAMECHANGED); 
	 
	Default(); 
 
	CPoint pt; 
	GetCursorPos(&pt); 
 
	CRect rcItem; 
	GetWindowRect(&rcItem); 
 
	if ((rcItem.PtInRect(pt)) || (::GetFocus() == m_hWnd)) 
		DrawCombo(FC_DRAWRAISED, ::GetSysColor(COLOR_BTNSHADOW), 
			::GetSysColor(COLOR_BTNHIGHLIGHT)); 
	else 
		DrawCombo(FC_DRAWNORMAL, ::GetSysColor(COLOR_BTNFACE), 
			::GetSysColor(COLOR_BTNFACE)); 
} 
 
void CCJComboBox::DrawCombo(DWORD dwStyle, COLORREF clrTopLeft, COLORREF clrBottomRight) 
{ 
	CRect rcItem; 
	GetClientRect(&rcItem); 
	CDC* pDC = GetDC(); 
	 
	// Cover up dark 3D shadow. 
	pDC->Draw3dRect(rcItem, clrTopLeft, clrBottomRight); 
	rcItem.DeflateRect(1,1); 
	 
	if (!IsWindowEnabled()) { 
		pDC->Draw3dRect(rcItem, ::GetSysColor(COLOR_BTNHIGHLIGHT), 
			::GetSysColor(COLOR_BTNHIGHLIGHT)); 
	} 
	 
	else { 
		pDC->Draw3dRect(rcItem, ::GetSysColor(COLOR_BTNFACE), 
			::GetSysColor(COLOR_BTNFACE)); 
	} 
 
	// Cover up dark 3D shadow on drop arrow. 
	rcItem.DeflateRect(1,1); 
	rcItem.left = rcItem.right-Offset(); 
	pDC->Draw3dRect(rcItem, ::GetSysColor(COLOR_BTNFACE), 
		::GetSysColor(COLOR_BTNFACE)); 
	 
	// Cover up normal 3D shadow on drop arrow. 
	rcItem.DeflateRect(1,1); 
	pDC->Draw3dRect(rcItem, ::GetSysColor(COLOR_BTNFACE), 
		::GetSysColor(COLOR_BTNFACE)); 
	 
	if (!IsWindowEnabled()) { 
		return; 
	} 
 
	switch (dwStyle) 
	{ 
	case FC_DRAWNORMAL: 
		rcItem.top -= 1; 
		rcItem.bottom += 1; 
		pDC->Draw3dRect(rcItem, ::GetSysColor(COLOR_BTNHIGHLIGHT), 
			::GetSysColor(COLOR_BTNHIGHLIGHT)); 
		rcItem.left -= 1; 
		pDC->Draw3dRect(rcItem, ::GetSysColor(COLOR_BTNHIGHLIGHT), 
			::GetSysColor(COLOR_BTNHIGHLIGHT)); 
		break; 
 
	case FC_DRAWRAISED: 
		rcItem.top -= 1; 
		rcItem.bottom += 1; 
		pDC->Draw3dRect(rcItem, ::GetSysColor(COLOR_BTNHIGHLIGHT), 
			::GetSysColor(COLOR_BTNSHADOW)); 
		break; 
 
	case FC_DRAWPRESSD: 
		rcItem.top -= 1; 
		rcItem.bottom += 1; 
		rcItem.OffsetRect(1,1); 
		pDC->Draw3dRect(rcItem, ::GetSysColor(COLOR_BTNSHADOW), 
			::GetSysColor(COLOR_BTNHIGHLIGHT)); 
		break; 
	} 
 
	ReleaseDC(pDC); 
} 
 
int CCJComboBox::Offset() 
{ 
	return ::GetSystemMetrics(SM_CXHTHUMB); 
} 
 
void CCJComboBox::OnSetFocus(CWnd* pOldWnd)  
{ 
	CComboBox::OnSetFocus(pOldWnd); 
	DrawCombo(FC_DRAWRAISED, ::GetSysColor(COLOR_BTNSHADOW), 
		::GetSysColor(COLOR_BTNHIGHLIGHT)); 
} 
 
void CCJComboBox::OnKillFocus(CWnd* pNewWnd)  
{ 
	CComboBox::OnKillFocus(pNewWnd); 
	DrawCombo(FC_DRAWNORMAL, ::GetSysColor(COLOR_BTNFACE), 
		::GetSysColor(COLOR_BTNFACE));	 
}