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#include "stdafx.h"
#include "SnapDialog.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CSnapDialog dialog
CSnapDialog::CSnapDialog(UINT IDD, CWnd* pParent /*=NULL*/)
: CDialog(IDD, pParent)
{
//{{AFX_DATA_INIT(CSnapDialog)
// NOTE: the ClassWizard will add member initialization here
m_nYOffset = 15;
m_nXOffset = 15;
//}}AFX_DATA_INIT
}
void CSnapDialog::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CSnapDialog)
// NOTE: the ClassWizard will add DDX and DDV calls here
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CSnapDialog, CDialog)
//{{AFX_MSG_MAP(CSnapDialog)
// NOTE: the ClassWizard will add message map macros here
ON_WM_WINDOWPOSCHANGING()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CSnapDialog message handlers
void CSnapDialog::OnWindowPosChanging( WINDOWPOS* lpwndpos )
{
CRect wndRect, trayRect;
int leftTaskbar = 0, rightTaskbar = 0, topTaskbar = 0, bottomTaskbar = 0;
GetWindowRect(&wndRect);
// Screen resolution
int screenWidth = GetSystemMetrics(SM_CXSCREEN);
int screenHeight = GetSystemMetrics(SM_CYSCREEN);
// Find the taskbar
CWnd* pWnd = FindWindow(_T("Shell_TrayWnd"), _T(""));
pWnd->GetWindowRect(&trayRect);
int wndWidth = wndRect.right - wndRect.left;
int wndHeight = wndRect.bottom - wndRect.top;
if(trayRect.top <= 0 && trayRect.left <= 0 && trayRect.right >= screenWidth) {
// top taskbar
topTaskbar = trayRect.bottom - trayRect.top;
}
else if(trayRect.top > 0 && trayRect.left <= 0) {
// bottom taskbar
bottomTaskbar = trayRect.bottom - trayRect.top;
}
else if(trayRect.top <= 0 && trayRect.left > 0) {
// right taskbar
rightTaskbar = trayRect.right - trayRect.left;
}
else {
// left taskbar
leftTaskbar = trayRect.right - trayRect.left;
}
// Snap to screen border
// Left border
if(lpwndpos->x >= -m_nXOffset + leftTaskbar && lpwndpos->x <= leftTaskbar + m_nXOffset) {
lpwndpos->x = leftTaskbar;
}
// Top border
if(lpwndpos->y >= -m_nYOffset && lpwndpos->y <= topTaskbar + m_nYOffset) {
lpwndpos->y = topTaskbar;
}
// Right border
if(lpwndpos->x + wndWidth <= screenWidth - rightTaskbar + m_nXOffset && lpwndpos->x + wndWidth >= screenWidth - rightTaskbar - m_nXOffset) {
lpwndpos->x = screenWidth - rightTaskbar - wndWidth;
}
// Bottom border
if( lpwndpos->y + wndHeight <= screenHeight - bottomTaskbar + m_nYOffset && lpwndpos->y + wndHeight >= screenHeight - bottomTaskbar - m_nYOffset) {
lpwndpos->y = screenHeight - bottomTaskbar - wndHeight;
}
}
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