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/*
* $Id$
*
* Author: Donald Kackman
* Email: don@itsEngineering.com
* Copyright 2002, Donald Kackman
*
* This file is part of mplayerc.
*
* Mplayerc is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* Mplayerc is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "stdafx.h"
#include "Monitors.h"
// CMonitors
CMonitors::CMonitors()
{
// WARNING : GetSystemMetrics(SM_CMONITORS) return only visible display monitors, and EnumDisplayMonitors
// enumerate visible and pseudo invisible monitors !!!
// m_MonitorArray.SetSize( GetMonitorCount() );
ADDMONITOR addMonitor;
addMonitor.pMonitors = &m_MonitorArray;
addMonitor.currentIndex = 0;
::EnumDisplayMonitors( NULL, NULL, AddMonitorsCallBack, (LPARAM)&addMonitor );
}
CMonitors::~CMonitors()
{
for ( int i = 0; i < m_MonitorArray.GetSize(); i++ )
delete m_MonitorArray.GetAt( i );
}
// CMonitors member functions
BOOL CALLBACK CMonitors::AddMonitorsCallBack( HMONITOR hMonitor, HDC hdcMonitor, LPRECT lprcMonitor, LPARAM dwData )
{
LPADDMONITOR pAddMonitor = (LPADDMONITOR)dwData;
CMonitor* pMonitor = DNew CMonitor;
pMonitor->Attach( hMonitor );
pAddMonitor->pMonitors->Add( pMonitor );
pAddMonitor->currentIndex++;
return TRUE;
}
//
// returns the primary monitor
CMonitor CMonitors::GetPrimaryMonitor()
{
//the primary monitor always has its origin at 0,0
HMONITOR hMonitor = ::MonitorFromPoint( CPoint( 0,0 ), MONITOR_DEFAULTTOPRIMARY );
ASSERT( IsMonitor( hMonitor ) );
CMonitor monitor;
monitor.Attach( hMonitor );
ASSERT( monitor.IsPrimaryMonitor() );
return monitor;
}
//
// is the given handle a valid monitor handle
BOOL CMonitors::IsMonitor( const HMONITOR hMonitor )
{
if ( hMonitor == NULL )
return FALSE;
MATCHMONITOR match;
match.target = hMonitor;
match.foundMatch = FALSE;
::EnumDisplayMonitors( NULL, NULL, FindMatchingMonitorHandle, (LPARAM)&match );
return match.foundMatch;
}
//this is the callback method that gets called via IsMontior
BOOL CALLBACK CMonitors::FindMatchingMonitorHandle( HMONITOR hMonitor, HDC hdcMonitor, LPRECT lprcMonitor, LPARAM dwData )
{
LPMATCHMONITOR pMatch = (LPMATCHMONITOR)dwData;
if ( hMonitor == pMatch->target )
{
//found a monitor with the same handle we are looking for
pMatch->foundMatch = TRUE;
return FALSE; //stop enumerating
}
//haven't found a match yet
pMatch->foundMatch = FALSE;
return TRUE; //keep enumerating
}
BOOL CMonitors::AllMonitorsShareDisplayFormat()
{
return ::GetSystemMetrics( SM_SAMEDISPLAYFORMAT );
}
//
// the number of monitors on the system
int CMonitors::GetMonitorCount()
{
return ::GetSystemMetrics(SM_CMONITORS);
}
CMonitor CMonitors::GetMonitor( const int index ) const
{
#if _MFC_VER >= 0x0700
ASSERT( index >= 0 && index < m_MonitorArray.GetCount() );
#else
ASSERT( index >= 0 && index < m_MonitorArray.GetSize() );
#endif
CMonitor* pMonitor = static_cast<CMonitor*>(m_MonitorArray.GetAt( index ));
return *pMonitor;
}
//
// returns the rectangle that is the union of all active monitors
void CMonitors::GetVirtualDesktopRect( LPRECT lprc )
{
::SetRect( lprc,
::GetSystemMetrics( SM_XVIRTUALSCREEN ),
::GetSystemMetrics( SM_YVIRTUALSCREEN ),
::GetSystemMetrics( SM_CXVIRTUALSCREEN ),
::GetSystemMetrics( SM_CYVIRTUALSCREEN ) );
}
//
// these methods determine wheter the given item is
// visible on any monitor
BOOL CMonitors::IsOnScreen( const LPRECT lprc )
{
return ::MonitorFromRect( lprc, MONITOR_DEFAULTTONULL ) != NULL;
}
BOOL CMonitors::IsOnScreen( const POINT pt )
{
return ::MonitorFromPoint( pt, MONITOR_DEFAULTTONULL ) != NULL;
}
BOOL CMonitors::IsOnScreen( const CWnd* pWnd )
{
return ::MonitorFromWindow( pWnd->GetSafeHwnd(), MONITOR_DEFAULTTONULL ) != NULL;
}
CMonitor CMonitors::GetNearestMonitor( const LPRECT lprc )
{
CMonitor monitor;
monitor.Attach( ::MonitorFromRect( lprc, MONITOR_DEFAULTTONEAREST ) );
return monitor;
}
CMonitor CMonitors::GetNearestMonitor( const POINT pt )
{
CMonitor monitor;
monitor.Attach( ::MonitorFromPoint( pt, MONITOR_DEFAULTTONEAREST ) );
return monitor;
}
CMonitor CMonitors::GetNearestMonitor( const CWnd* pWnd )
{
ASSERT( pWnd );
ASSERT( ::IsWindow( pWnd->m_hWnd ) );
CMonitor monitor;
monitor.Attach( ::MonitorFromWindow( pWnd->GetSafeHwnd(), MONITOR_DEFAULTTONEAREST ) );
return monitor;
}
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