///////////////////////////////////////////////////////////////////////////////
//
// Popup.cpp : implementation file
//
///////////////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include <objbase.h>
#include <initguid.h>
#include "Popup.h"
#include "Draw.h"
#include "tools.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
///////////////////////////////////////////////////////////////////////////////
CPopup::CPopup () : m_pControl (NULL), m_pCaller (NULL), m_pEvents (NULL),
m_hPrevParentCtrl (NULL), m_bDestroy (false)
{
}
///////////////////////////////////////////////////////////////////////////////
bool CPopup::Display (CWnd* pControl, CWnd* pCaller, CRect& rcCaller, IPopupCtrlEvent* pEvents, DWORD dwStyles)
{
if ( pControl == NULL )
{
delete this;
return false;
}
m_pControl = pControl;
m_pCaller = pCaller;
m_rcCaller = rcCaller;
m_pEvents = pEvents;
if ( m_pEvents != NULL && !m_pEvents->OnInit() )
{
delete this;
return false;
}
// Calculate the most appropriate position for the left-top corner of control
// By default, at left and bottom of the caller
CPoint pt (rcCaller.left, rcCaller.bottom);
CWindowRect rcCtrl (m_pControl);
if ( rcCtrl.Width() == 0 || rcCtrl.Height() == 0 )
{
return false;
}
int nOffset = 0;
if ( dwStyles & WS_DLGFRAME )
{
rcCtrl.InflateRect (4, 4);
nOffset = 1;
}
if ( dwStyles & WS_BORDER )
{
rcCtrl.right += 2;
rcCtrl.bottom += 2;
}
// Alignment at right if necessary
if ( pt.x + rcCtrl.Width() > ::GetSystemMetrics (SM_CXSCREEN) )
{
pt.x = rcCaller.right-rcCtrl.Width();
}
// Alignment at top if necessary
if ( pt.y + rcCtrl.Height() > ::GetSystemMetrics (SM_CYSCREEN) )
{
pt.y = rcCaller.top-rcCtrl.Height();
}
// Adjustments to keep control into screen
if ( pt.x + rcCtrl.Width() > ::GetSystemMetrics (SM_CXSCREEN) )
{
pt.x = ::GetSystemMetrics (SM_CXSCREEN)-rcCtrl.Width();
}
if ( pt.y + rcCtrl.Height() > ::GetSystemMetrics (SM_CYSCREEN) )
{
pt.y = ::GetSystemMetrics (SM_CYSCREEN)-rcCtrl.Height();
}
if ( pt.x < 0 ) pt.x = 0;
if ( pt.y < 0 ) pt.y = 0;
if ( !CMiniFrameWnd::Create (NULL, _T(""), WS_POPUP|dwStyles|(m_pCaller != NULL ? MFS_SYNCACTIVE : 0),
CRect (pt.x, pt.y, pt.x+rcCtrl.Width(), pt.y+rcCtrl.Height()),
m_pControl->GetParent()) )
{
return false;
}
m_hPrevParentCtrl = m_pControl->SetParent (this)->GetSafeHwnd();
m_pControl->SetWindowPos (NULL, nOffset, nOffset, 0, 0, SWP_NOZORDER|SWP_NOSIZE);
// Don't use SWP_SHOWWINDOW because OnShowWindow isn't call
m_pControl->ShowWindow (SW_SHOW);
EnableToolTips (TRUE);
ShowWindow (SW_SHOW);
if ( m_pEvents != NULL )
{
m_pEvents->OnShow();
}
return true;
}
// user defined message (different of any Win32/MFC message?)
#define WM_DELAYDESTROY (WM_USER+0x0100)
///////////////////////////////////////////////////////////////////////////////
void CPopup::EndPopup (bool bAbort, bool bSetFocus)
{
if ( m_pEvents != NULL )
{
m_pEvents->OnHide (bAbort);
}
ASSERT (m_pControl->m_hWnd != NULL);
m_pControl->ShowWindow (SW_HIDE);
ASSERT (m_hPrevParentCtrl != NULL);
::SetParent (m_pControl->m_hWnd, m_hPrevParentCtrl);
// Do a local copy of the pointer because DestroyWindow delete object
// and m_pCaller will not be valid after
CWnd* pCaller = m_pCaller;
if ( !m_bDestroy )
{
m_bDestroy = true;
PostMessage (WM_DELAYDESTROY);
}
if ( bSetFocus && pCaller != NULL )
{
pCaller->SetFocus();
}
}
///////////////////////////////////////////////////////////////////////////////
BOOL CPopup::PreTranslateMessage (MSG* pMsg)
{
bool bEnd = false, bAbort = false, bResult = false;
int nCode = doNothing;
switch ( pMsg->message )
{
case WM_KEYDOWN:
// Default action for <Escape> key
if ( pMsg->wParam == VK_ESCAPE )
{
bEnd = bAbort = bResult = true;
break;
}
if ( m_pEvents != NULL )
{
IPopupCtrlEvent* pEvents = m_pEvents;
// Search for the interface for the correct object (referenced by pMsg->hwnd)
if ( pMsg->hwnd != m_pControl->m_hWnd )
{
pEvents = m_pEvents->GetInterfaceOf (pMsg->hwnd);
}
if ( pEvents != NULL )
{
nCode = pEvents->OnKeyDown (pMsg->wParam, LOWORD(pMsg->lParam), HIWORD(pMsg->lParam));
}
}
break;
case WM_LBUTTONDOWN:
if ( m_pEvents != NULL )
{
IPopupCtrlEvent* pEvents = m_pEvents;
// Search for the interface for the correct object
if ( pMsg->hwnd != m_pControl->m_hWnd )
{
pEvents = m_pEvents->GetInterfaceOf (pMsg->hwnd);
}
if ( pEvents != NULL )
{
nCode = pEvents->OnLButtonDown (pMsg->wParam, CPoint ((short)LOWORD(pMsg->lParam), (short)HIWORD(pMsg->lParam)));
}
}
break;
case WM_LBUTTONUP:
if ( m_pEvents != NULL )
{
IPopupCtrlEvent* pEvents = m_pEvents;
// Search for the interface for the correct object
if ( pMsg->hwnd != m_pControl->m_hWnd )
{
pEvents = m_pEvents->GetInterfaceOf (pMsg->hwnd);
}
if ( pEvents != NULL )
{
nCode = pEvents->OnLButtonUp (pMsg->wParam, CPoint ((short)LOWORD(pMsg->lParam), (short)HIWORD(pMsg->lParam)));
}
}
break;
}
switch ( nCode )
{
case noSend:
bResult = true;
break;
case end:
bEnd = bResult = true;
break;
case abort:
bEnd = bAbort = bResult = true;
break;
}
if ( !bResult )
{
bResult = CMiniFrameWnd::PreTranslateMessage (pMsg) != 0;
}
if ( bEnd )
{
EndPopup (bAbort);
}
return bResult;
}
///////////////////////////////////////////////////////////////////////////////
void CPopup::PostNcDestroy ()
{
delete this;
}
///////////////////////////////////////////////////////////////////////////////
BEGIN_MESSAGE_MAP (CPopup, CMiniFrameWnd)
//{{AFX_MSG_MAP(CPopup)
ON_WM_ERASEBKGND()
ON_WM_ACTIVATE()
ON_WM_CANCELMODE()
ON_MESSAGE(WM_DELAYDESTROY, OnDelayDestroy)
ON_WM_NCPAINT()
//}}AFX_MSG_MAP
END_MESSAGE_MAP ()
IMPLEMENT_DYNCREATE (CPopup, CMiniFrameWnd);
///////////////////////////////////////////////////////////////////////////////
BOOL CPopup::OnEraseBkgnd (CDC* pDC)
{
pDC->FillSolidRect (CClientRect (this), ::GetSysColor (COLOR_3DFACE));
return true;
}
///////////////////////////////////////////////////////////////////////////////
void CPopup::OnNcPaint ()
{
Default();
if ( (GetStyle()&WS_TABBORDER) == WS_TABBORDER )
{
CWindowDC cDC (this);
CWindowRect rc (this);
CPenDC pen (cDC, HLS_TRANSFORM (::GetSysColor (COLOR_3DFACE), 20, 0));
if ( m_rcCaller.bottom == rc.top )
{
cDC.MoveTo (1, 0);
cDC.LineTo (m_rcCaller.Width()-1, 0);
pen.Color (::GetSysColor (COLOR_3DSHADOW));
cDC.LineTo (rc.Width()-1, 0);
cDC.LineTo (rc.Width()-1, rc.Height()-1);
cDC.LineTo (0, rc.Height()-1);
cDC.LineTo (0, -1);
}
else
{
cDC.MoveTo (1, rc.Height()-1);
cDC.LineTo (m_rcCaller.Width()-1, rc.Height()-1);
pen.Color (::GetSysColor (COLOR_3DSHADOW));
cDC.LineTo (rc.Width()-1, rc.Height()-1);
cDC.LineTo (rc.Width()-1, 0);
cDC.LineTo (0, 0);
cDC.LineTo (0, rc.Height());
}
}
}
///////////////////////////////////////////////////////////////////////////////
void CPopup::OnActivate (UINT nState, CWnd* pWndOther, BOOL bMinimized)
{
CMiniFrameWnd::OnActivate (nState, pWndOther, bMinimized);
if ( nState == WA_INACTIVE && !m_bDestroy )
{
EndPopup (true, false);
}
}
///////////////////////////////////////////////////////////////////////////////
void CPopup::OnCancelMode ()
{
if ( !m_bDestroy )
{
EndPopup (true, false);
}
}
///////////////////////////////////////////////////////////////////////////////
LRESULT CPopup::OnDelayDestroy (WPARAM, LPARAM)
{
DestroyWindow();
return 0;
}
///////////////////////////////////////////////////////////////////////////////
int CPopup::OnToolHitTest (CPoint, TOOLINFO* pTI) const
{
UNUSED(pTI);
#ifdef _DEBUG
if ( m_pControl != NULL )
{
if ( pTI != NULL && pTI->cbSize >= 40/*sizeof(TOOLINFO)*/ )
{
// setup the TOOLINFO structure
pTI->hwnd = m_hWnd;
pTI->uId = (UINT)m_pControl->m_hWnd;
pTI->uFlags |= TTF_IDISHWND;
pTI->lpszText = _tcsdup (_T("Press <Esc> to hide me !"));
}
return m_pControl->GetDlgCtrlID();
}
#endif
return -1;
}
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