Leaked source code of windows server 2003
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//
// dlgbase.cpp: base class for dialogs
//
#include "stdafx.h"
#include "dlgbase.h"
#include "resource.h"
#include "wuiids.h"
#define TRC_GROUP TRC_GROUP_UI
#define TRC_FILE "dlgbase"
#include <atrcapi.h>
CDlgBase::CDlgBase(HWND hwndOwner, HINSTANCE hInst, DCINT dlgResId) :
_hwndOwner(hwndOwner), _hInstance(hInst), _dlgResId(dlgResId)
{
_hwndDlg = NULL;
_startupLeft = _startupTop = 0;
}
CDlgBase::~CDlgBase()
{
}
/****************************************************************************/
/* Name: DialogBoxProc */
/* */
/* Purpose: Provides message handling for basic operation */
/* */
/* Returns: TRUE - if message dealt with */
/* FALSE otherwise */
/* */
/* Params: See windows documentation */
/* */
/****************************************************************************/
INT_PTR CALLBACK CDlgBase::DialogBoxProc(HWND hwndDlg,
UINT uMsg,
WPARAM wParam,
LPARAM lParam)
{
INT_PTR rc = FALSE;
DC_BEGIN_FN("DialogBoxProc");
DC_IGNORE_PARAMETER(lParam);
/************************************************************************/
/* Handle dialog messages */
/************************************************************************/
switch(uMsg)
{
case WM_INITDIALOG:
{
SetDialogAppIcon(hwndDlg);
rc = TRUE;
}
break;
case WM_COMMAND:
{
switch(DC_GET_WM_COMMAND_ID(wParam))
{
case IDCANCEL:
{
/********************************************************/
/* Closes the dialog */
/********************************************************/
TRC_NRM((TB, _T("Close dialog")));
if(hwndDlg)
{
EndDialog(hwndDlg, IDCANCEL);
}
rc = TRUE;
}
break;
default:
{
/********************************************************/
/* Do Nothing */
/********************************************************/
}
break;
}
}
break;
case WM_CLOSE:
{
/****************************************************************/
/* Closes the dialog */
/****************************************************************/
TRC_NRM((TB, _T("Close dialog")));
if(IsWindow(hwndDlg))
{
EndDialog(hwndDlg, IDCANCEL);
}
rc = 0;
}
break;
default:
{
/****************************************************************/
/* Do Nothing */
/****************************************************************/
}
break;
}
DC_END_FN();
return(rc);
} /* DialogBoxProc */
/****************************************************************************/
/* Name: SetDialogAppIcon */
/* */
/* Purpose: Sets the icon for the dialog to the application icon */
/* */
/* Returns: Yes, it does */
/* */
/* Params: IN HWND the dialog for which we want to set the icon */
/* */
/* */
/****************************************************************************/
void CDlgBase::SetDialogAppIcon(HWND hwndDlg)
{
#ifdef OS_WINCE
DC_IGNORE_PARAMETER(hwndDlg);
#else // !OS_WINCE
HICON hIcon = NULL;
hIcon = LoadIcon(_hInstance, MAKEINTRESOURCE(UI_IDI_ICON));
if(hIcon)
{
#ifdef OS_WIN32
SendMessage(hwndDlg, WM_SETICON, ICON_BIG, (LPARAM)hIcon);
#else //OS_WIN32
SetClassWord(hwndDlg, GCW_HICON, (WORD)hIcon);
#endif //OS_WIN32
}
#endif // OS_WINCE
} /* UISetDialogAppIcon */
/****************************************************************************/
/* Name: EnableDlgItem */
/* */
/* Purpose: Enables or disables a specified dialog control */
/* */
/* Returns: Nothing. */
/* */
/* Params: hwndDlg - dialog window handle */
/* dlgItemId - dialog control id */
/* enabled - TRUE enables the control, FALSE disables it */
/* */
/****************************************************************************/
DCVOID DCINTERNAL CDlgBase::EnableDlgItem( HWND hwndDlg,
DCUINT dlgItemId,
DCBOOL enabled )
{
HWND hwndDlgItem = NULL;
DC_BEGIN_FN("EnableDlgItem");
if(hwndDlg)
{
hwndDlgItem = GetDlgItem(hwndDlg, dlgItemId);
}
if(hwndDlgItem)
{
EnableWindow(hwndDlgItem, enabled);
}
DC_END_FN();
return;
}
/****************************************************************************/
/* Name: CenterWindowOnParent */
/* */
/* Purpose: Center a window inside another */
/* */
/* Returns: None */
/* */
/* Params: HWND hwndCenterOn (window to center on) */
/* xRatio - horizontal centering factor e.g 2 for (1/2) */
/* yRatio - vertical centering factor e.g 3 for (1/3)
/* */
/* */
/****************************************************************************/
VOID CDlgBase::CenterWindow(HWND hwndCenterOn,
INT xRatio,
INT yRatio)
{
RECT childRect;
RECT parentRect;
DCINT xPos;
DCINT yPos;
LONG desktopX = GetSystemMetrics(SM_CXSCREEN);
LONG desktopY = GetSystemMetrics(SM_CYSCREEN);
BOOL center = TRUE;
DC_BEGIN_FN("CenterWindowOnParent");
TRC_ASSERT(_hwndDlg, (TB, _T("_hwndDlg is NULL...was it set in WM_INITDIALOG?\n")));
if (!_hwndDlg)
{
TRC_ALT((TB, _T("Window doesn't exist")));
DC_QUIT;
}
if (!xRatio)
{
xRatio = 2;
}
if (!yRatio)
{
yRatio = 2;
}
#ifndef OS_WINCE
if(!hwndCenterOn)
{
hwndCenterOn = GetDesktopWindow();
}
GetWindowRect(hwndCenterOn, &parentRect);
#else /*OS_WINCE*/
if(!hwndCenterOn)
{
//
// WinCE doesn't have GetDesktopWindow()
//
#if 0
if (g_CEConfig != CE_CONFIG_WBT)
{
SystemParametersInfo(SPI_GETWORKAREA, 0, (PVOID)&parentRect, 0);
}
else
#endif
{
parentRect.left = 0;
parentRect.top = 0;
parentRect.right = desktopX;
parentRect.bottom = desktopY;
}
}
else
{
GetWindowRect(hwndCenterOn, &parentRect);
}
#endif/*OS_WINCE*/
GetWindowRect(_hwndDlg, &childRect);
/************************************************************************/
/* Calculate the top left - centered in the parent window. */
/************************************************************************/
xPos = ( (parentRect.right + parentRect.left) -
(childRect.right - childRect.left)) / xRatio;
yPos = ( (parentRect.bottom + parentRect.top) -
(childRect.bottom - childRect.top)) / yRatio;
/************************************************************************/
/* Constrain to the desktop */
/************************************************************************/
if (xPos < 0)
{
xPos = 0;
}
else if (xPos > (desktopX - (childRect.right - childRect.left)))
{
xPos = desktopX - (childRect.right - childRect.left);
}
if (yPos < 0)
{
yPos = 0;
}
else if (yPos > (desktopY - (childRect.bottom - childRect.top)))
{
yPos = desktopY - (childRect.bottom - childRect.top);
}
TRC_DBG((TB, _T("Set dialog position to %u %u"), xPos, yPos));
SetWindowPos(_hwndDlg,
NULL,
xPos, yPos,
0, 0,
SWP_NOSIZE | SWP_NOACTIVATE);
DC_EXIT_POINT:
DC_END_FN();
return;
} /* CenterWindowOnParent */
#ifndef OS_WINCE
//
// Retreive current dialog position
//
BOOL CDlgBase::GetPosition(int* pLeft, int* pTop)
{
if(!pLeft || !pTop)
{
return FALSE;
}
if(!_hwndDlg)
{
return FALSE;
}
WINDOWPLACEMENT wndPlc;
wndPlc.length = sizeof(WINDOWPLACEMENT);
if(GetWindowPlacement(_hwndDlg, &wndPlc))
{
*pLeft = wndPlc.rcNormalPosition.left;
*pTop = wndPlc.rcNormalPosition.top;
return TRUE;
}
return FALSE;
}
#endif
BOOL CDlgBase::SetPosition(int left, int top)
{
if(!_hwndDlg)
{
return FALSE;
}
if(!::SetWindowPos(_hwndDlg,
NULL,
left,
top,
0,
0,
SWP_NOZORDER | SWP_NOSIZE))
{
return FALSE;
}
return TRUE;
}
//
// Move the dialog controls
//
void CDlgBase::RepositionControls(int moveDeltaX, int moveDeltaY, UINT* ctlIDs, int numID)
{
if(_hwndDlg)
{
for(int i=0; i< numID; i++)
{
HWND hwndCtrl = GetDlgItem(_hwndDlg, ctlIDs[i]);
if( hwndCtrl)
{
RECT rc;
GetWindowRect( hwndCtrl, &rc);
MapWindowPoints( NULL, _hwndDlg, (LPPOINT)&rc, 2);
OffsetRect( &rc, moveDeltaX, moveDeltaY);
SetWindowPos( hwndCtrl, NULL, rc.left, rc.top, 0, 0,
SWP_NOZORDER | SWP_NOSIZE);
}
}
}
}
//
// Shows+enable or Hide+disable controls
//
void CDlgBase::EnableControls(UINT* ctlIDs, int numID, BOOL bEnable)
{
if(_hwndDlg)
{
for(int i=0; i< numID; i++)
{
HWND hwndCtrl = GetDlgItem(_hwndDlg, ctlIDs[i]);
if( hwndCtrl)
{
EnableWindow( hwndCtrl, bEnable);
ShowWindow(hwndCtrl, bEnable ? SW_SHOW : SW_HIDE);
}
}
}
}
//
// DoLockDlgRes - loads and locks a dialog template
// returns address of locked resource
// lpszResName - name of resource
//
DLGTEMPLATE* CDlgBase::DoLockDlgRes(LPCTSTR lpszResName)
{
#ifdef OS_WINCE
HRSRC hrsrc = FindResource(GetModuleHandle(NULL), lpszResName, RT_DIALOG);
#else
HRSRC hrsrc = FindResource(NULL, lpszResName, RT_DIALOG);
#endif
if(!hrsrc)
{
return NULL;
}
HGLOBAL hglb = LoadResource( _hInstance, hrsrc);
return (DLGTEMPLATE*) LockResource(hglb);
}