Source code of Windows XP (NT5)
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#ifndef __VWINDOW_HPP
#define __VWINDOW_HPP
#ifndef VWCL_WRAP_WINDOWS_ONLY
#include "vApplication.hpp"
#endif
#include "vRTTI.hpp"
#include <commctrl.h>
class VWindow;
typedef struct tagVWCL_ENUM_PARAM
{
UINT nMessageOrID;
LPVOID lpInData; // Normally input pointer
LPVOID lpOutData; // Normally output pointer
} VWCL_ENUM_PARAM;
// <VDOC<CLASS=VWindow><BASE=VRTTI><DESC=Base window object encapsulation><FAMILY=VWCL Core><AUTHOR=Todd Osborne ([email protected])>VDOC>
class VWindow : public VRTTI
{
#ifndef VWCL_WRAP_WINDOWS_ONLY
friend class VApplication;
#endif
public:
VWindow(UINT nRTTI = VWCL_RTTI_WINDOW)
: VRTTI(nRTTI)
{
m_hWindow = NULL;
#ifndef VWCL_WRAP_WINDOWS_ONLY
m_lpfnOldWndProc = NULL;
#endif
}
virtual ~VWindow()
{
#ifndef VWCL_WRAP_WINDOWS_ONLY
DestroyWindow();
#endif
}
// Returns HWND
operator HWND ()
{ return GetSafeWindow(); }
#ifndef VWCL_WRAP_WINDOWS_ONLY
// Attach an existing Windows window to a VWindow object, subclassing it routing messages through the object
BOOL Attach(HWND hWnd);
#else
// Simply assign hWnd to this object, but do not subclass it
HWND Attach(HWND hWnd)
{ assert(hWnd && ::IsWindow(hWnd)); m_hWindow = hWnd; return m_hWindow; }
#endif
// Center a window on screen
void CenterWindow()
{
assert(GetSafeWindow());
// Center a window on screen
RECT r;
GetWindowRect(&r);
SetWindowPos( m_hWindow,
HWND_TOP,
((GetSystemMetrics(SM_CXSCREEN) - (r.right - r.left)) / 2),
((GetSystemMetrics(SM_CYSCREEN) - (r.bottom - r.top)) / 2),
0,
0,
SWP_NOZORDER | SWP_NOSIZE | SWP_NOACTIVATE);
}
void CheckDlgButton(int nID, UINT nCheck = BST_CHECKED)
{ assert(GetSafeWindow()); ::CheckDlgButton(m_hWindow, nID, nCheck); }
BOOL ClientToScreen(LPPOINT lpPoint)
{ assert(GetSafeWindow() && lpPoint); return ::ClientToScreen(m_hWindow, lpPoint); }
#ifndef VWCL_WRAP_WINDOWS_ONLY
// Lowest common denominator of window creation functions
BOOL Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle, LPRECT lpRect, HWND hWndParent, UINT nIDorMenu, BOOL bDontCallPostCreateWindow = FALSE);
#endif
virtual BOOL DestroyWindow()
{ if ( GetSafeWindow() ) return ::DestroyWindow(m_hWindow); return FALSE; }
#ifndef VWCL_WRAP_WINDOWS_ONLY
// Detach an existing Windows window with an associated VWindow object, removing any subclassing, and restore to previous state
void Detach();
#else
// Simply remove the window handle from object
void Detach()
{ m_hWindow = NULL; }
#endif
BOOL EnableWindow(BOOL bEnable = TRUE)
{ assert(GetSafeWindow()); return ::EnableWindow(m_hWindow, bEnable); }
#ifndef VWCL_WRAP_WINDOWS_ONLY
// Enter a message loop
WPARAM EnterMessageLoop(HACCEL hAccel)
{
MSG msg;
// Enter message loop
while ( GetMessage(&msg, NULL, 0, 0) != 0 )
{
if ( hAccel == NULL || hAccel && TranslateAccelerator(m_hWindow, hAccel, &msg) == 0 )
HandleMessage(&msg);
}
return msg.wParam;
}
#endif
// Find a child window when the class is known
HWND FindChildWindowByClass(LPCTSTR lpszClass)
{
assert(lpszClass && lstrlen(lpszClass));
// Iterate child windows
VWCL_ENUM_PARAM EnumParam = {ENUM_FIND_CHILD_BY_CLASS, (LPVOID)lpszClass, NULL};
EnumChildWindows(m_hWindow, (WNDENUMPROC)EnumChildWndProc, (LPARAM)&EnumParam);
// EnumParam.lpOutData will be non-NULL if a handle was found
if ( EnumParam.lpOutData )
return (HWND)EnumParam.lpOutData;
return NULL;
}
HWND GetDlgItem(int nID)
{ assert(GetSafeWindow()); return ::GetDlgItem(m_hWindow, nID); }
UINT GetDlgItemInt(int nID, LPBOOL lpTranslated = NULL, BOOL bSigned = FALSE)
{ assert(GetSafeWindow()); return ::GetDlgItemInt(m_hWindow, nID, lpTranslated, bSigned); }
int GetDlgItemText(int nID, LPTSTR lpszBuffer, int nSizeOfBuffer)
{ assert(GetSafeWindow()); return ::GetDlgItemText(m_hWindow, nID, lpszBuffer, nSizeOfBuffer); }
HFONT GetFont()
{ assert(GetSafeWindow()); return (HFONT)::SendMessage(m_hWindow, WM_GETFONT, 0, 0); }
HMENU GetMenu()
{ assert(GetSafeWindow()); return ::GetMenu(m_hWindow); }
HWND GetParent()
{ assert(GetSafeWindow()); return ::GetParent(m_hWindow); }
HWND GetSafeWindow()
{ return (IsWindow()) ? m_hWindow : NULL; }
LONG GetStyle()
{ return GetWindowLong(GWL_STYLE); }
LONG GetWindowLong(int nIndex)
{ assert(GetSafeWindow()); return ::GetWindowLong(m_hWindow, nIndex); }
#ifdef WIN32
BOOL GetClientRect(LPRECT lpRect)
{ assert(lpRect && GetSafeWindow()); return ::GetClientRect(m_hWindow, lpRect); }
BOOL GetWindowRect(LPRECT lpRect)
{ assert(lpRect && GetSafeWindow()); return ::GetWindowRect(m_hWindow, lpRect); }
#else
void GetClientRect(LPRECT lpRect)
{ assert(lpRect && GetSafeWindow()); ::GetClientRect(m_hWindow, lpRect); }
void GetWindowRect(LPRECT lpRect)
{ assert(lpRect && GetSafeWindow()); ::GetWindowRect(m_hWindow, lpRect); }
#endif
#ifndef VWCL_WRAP_WINDOWS_ONLY
// Called from a VWindow class that implements a message loop
virtual void HandleMessage(LPMSG lpMsg)
{
assert(lpMsg);
// Called from a VWindow derived class that implements a message loop
if ( !PreTranslateMessage(lpMsg) )
{
TranslateMessage(lpMsg);
DispatchMessage(lpMsg);
}
}
#endif
void InvalidateRect(LPRECT lpRect = NULL, BOOL bErase = TRUE)
{ assert(GetSafeWindow()); ::InvalidateRect(m_hWindow, lpRect, bErase); }
// Return TRUE if the object is a VDialog type (That is, a VDialogXXX class, not all VDialog derivitives)
BOOL IsVDialogType()
{
switch ( RTTI() )
{
// Top level window is a dialog
case VWindow::VWCL_RTTI_DIALOG:
case VWindow::VWCL_RTTI_MAIN_DIALOG:
case VWindow::VWCL_RTTI_SPLIT_MAIN_DIALOG:
case VWindow::VWCL_RTTI_SPLIT_DIALOG:
return TRUE;
}
return FALSE;
}
UINT IsDlgButtonChecked(int nID)
{ assert(GetSafeWindow()); return ::IsDlgButtonChecked(m_hWindow, nID); }
BOOL IsIconic()
{ assert(GetSafeWindow()); return ::IsIconic(m_hWindow); }
BOOL IsWindow()
{ return (m_hWindow) ? ::IsWindow(m_hWindow) : FALSE; }
BOOL IsWindowEnabled()
{ assert(GetSafeWindow()); return ::IsWindowEnabled(m_hWindow); }
BOOL IsWindowVisible()
{ assert(GetSafeWindow()); return ::IsWindowVisible(m_hWindow); }
int MessageBox(LPCTSTR lpcszText, LPCTSTR lpcszCaption, UINT nType = MB_OK)
{ int nResult; HWND hWndFocus = GetFocus(); nResult = ::MessageBox(m_hWindow, lpcszText, lpcszCaption, nType); if ( hWndFocus ) ::SetFocus(hWndFocus); return nResult; }
int MessageBox(LPCTSTR lpcszText, UINT nType = MB_OK)
{ return MessageBox(lpcszText, VGetAppTitle(), nType); }
// If VString.hpp is included, implement these functions
#ifdef __VSTRING_HPP
int MessageBox(UINT nStringID, UINT nType = MB_OK, HINSTANCE hResource = NULL)
{ return MessageBox(VString(nStringID, hResource), nType); }
int MessageBox(UINT nStringID, LPCTSTR lpcszCaption, UINT nType = MB_OK, HINSTANCE hResource = NULL)
{ return MessageBox(VString(nStringID, hResource), lpcszCaption, nType); }
int MessageBox(UINT nStringID, UINT nCaptionID, UINT nType, HINSTANCE hResource = NULL)
{ return MessageBox(VString(nStringID, hResource), VString(nCaptionID, hResource), nType); }
#endif
BOOL MoveWindow(int x, int y, int cx, int cy, BOOL bRedraw = TRUE)
{ assert(GetSafeWindow()); return ::MoveWindow(m_hWindow, x, y, cx, cy, bRedraw); }
BOOL MoveWindow(LPRECT lpRect, BOOL bRedraw = TRUE)
{ assert(lpRect); assert(GetSafeWindow()); return ::MoveWindow(m_hWindow, lpRect->left, lpRect->top, lpRect->right - lpRect->left, lpRect->bottom - lpRect->top, bRedraw); }
BOOL PostMessage(UINT nMessage, WPARAM wParam, LPARAM lParam)
{ assert(GetSafeWindow()); return ::PostMessage(m_hWindow, nMessage, wParam, lParam); }
// Override to allow user to call IsDialogMessage() or perform other
// processing before message is dispatched. Return TRUE if message was processed
virtual BOOL PreTranslateMessage(LPMSG lpMsg)
{ return FALSE; }
BOOL ReleaseCapture()
{ assert(GetSafeWindow()); return ::ReleaseCapture(); }
BOOL ScreenToClient(LPPOINT lpPoint)
{ assert(GetSafeWindow() && lpPoint); return ::ScreenToClient(m_hWindow, lpPoint); }
LRESULT SendDlgItemMessage(UINT nID, UINT nMessage, WPARAM wParam, LPARAM lParam)
{ assert(GetSafeWindow()); return ::SendDlgItemMessage(m_hWindow, nID, nMessage, wParam, lParam); }
LRESULT SendMessage(UINT nMessage, WPARAM wParam, LPARAM lParam)
{ assert(GetSafeWindow()); return ::SendMessage(m_hWindow, nMessage, wParam, lParam); }
HWND SetCapture()
{ assert(GetSafeWindow()); return ::SetCapture(m_hWindow); }
BOOL SetDlgItemInt(int nID, UINT nValue, BOOL bSigned = FALSE)
{ assert(GetSafeWindow()); return ::SetDlgItemInt(m_hWindow, nID, nValue, bSigned); }
#ifdef WIN32
BOOL SetDlgItemText(int nID, LPCTSTR lpszText)
{ assert(GetSafeWindow()); return ::SetDlgItemText(m_hWindow, nID, lpszText); }
#else
void SetDlgItemText(int nID, LPCTSTR lpszText)
{ assert(GetSafeWindow()); ::SetDlgItemText(m_hWindow, nID, lpszText); }
#endif
HWND SetFocus()
{ assert(GetSafeWindow()); return ::SetFocus(m_hWindow); }
BOOL SetMenu(HMENU hMenu)
{ assert(GetSafeWindow()); return ::SetMenu(m_hWindow, hMenu); }
LONG SetStyle(DWORD dwStyle)
{ return SetWindowLong(GWL_STYLE, dwStyle); }
LONG SetWindowLong(int nIndex, LONG nNewLong)
{ assert(GetSafeWindow()); return ::SetWindowLong(m_hWindow, nIndex, nNewLong); }
#if defined(_WIN64)
LONG_PTR SetWindowLongPtr(int nIndex, LONG_PTR nNewLongPtr)
{ assert(GetSafeWindow()); return ::SetWindowLongPtr(m_hWindow, nIndex, nNewLongPtr); }
#endif
#ifdef WIN32
BOOL SetWindowText(LPCTSTR lpszText)
{ assert(GetSafeWindow()); return ::SetWindowText(m_hWindow, lpszText); }
#else
void SetWindowText(LPCTSTR lpszText)
{ assert(GetSafeWindow()); ::SetWindowText(m_hWindow, lpszText); }
#endif
BOOL ShowWindow(int nCmdShow = SW_SHOWNORMAL)
{ assert(GetSafeWindow()); return ::ShowWindow(m_hWindow, nCmdShow); }
#ifdef WIN32
BOOL UpdateWindow()
{ assert(GetSafeWindow()); return ::UpdateWindow(m_hWindow); }
#else
void UpdateWindow()
{ assert(GetSafeWindow()); ::UpdateWindow(m_hWindow); }
#endif
#ifndef VWCL_WRAP_WINDOWS_ONLY
// Window procedure
virtual LRESULT WindowProc(HWND hWnd, UINT nMessage, WPARAM wParam, LPARAM lParam);
#endif
// Fast Runtime Type Information supported on ALL compilers
// Implemented int VRTTI base class for VWindow and derived classes
enum { VWCL_RTTI_UNKNOWN,
VWCL_RTTI_BUTTON,
VWCL_RTTI_CHECKBOX,
VWCL_RTTI_COMBOBOX,
VWCL_RTTI_DIALOG,
VWCL_RTTI_EDIT,
VWCL_RTTI_GROUPBOX,
VWCL_RTTI_LISTBOX,
VWCL_RTTI_LISTVIEW_CTRL,
VWCL_RTTI_MAIN_DIALOG,
VWCL_RTTI_MAIN_WINDOW,
VWCL_RTTI_PAGE_SETUP_DIALOG,
VWCL_RTTI_PRINT_DIALOG,
VWCL_RTTI_PRINT_SETUP_DIALOG,
VWCL_RTTI_RADIO_BUTTON,
VWCL_RTTI_SCROLLBAR,
VWCL_RTTI_SPLASH_WINDOW,
VWCL_RTTI_SPLIT_MAIN_DIALOG,
VWCL_RTTI_SPLIT_MAIN_WINDOW,
VWCL_RTTI_SPLIT_WINDOW,
VWCL_RTTI_SS_TREE_CTRL,
VWCL_RTTI_STATIC,
VWCL_RTTI_STATUSBAR_CTRL,
VWCL_RTTI_TAB_CTRL,
VWCL_RTTI_TAB_CTRL_WINDOW,
VWCL_RTTI_TOOLBAR_CTRL,
VWCL_RTTI_TREE_CTRL,
VWCL_RTTI_WINDOW,
VWCL_RTTI_SPLIT_DIALOG,
VWCL_RTTI_SHELL_TAB_WINDOW,
VWCL_RTTI_MINI_WINDOW,
VWCL_RTTI_DIRECTORY_TREE_CTRL,
VWCL_RTTI_XTREE_CTRL,
VWCL_RTTI_XEDIT,
VWCL_RTTI_SS_INDEXED_TREE_CTRL,
VWCL_RTTI_PROPERTY_SHEET,
VWCL_RTTI_PROPERTY_PAGE,
VWCL_RTTI_PROGRESS_CTRL,
};
// Handle this object encapsulates
HWND m_hWindow;
#ifndef VWCL_WRAP_WINDOWS_ONLY
// For subclased windows, the old Window Procedure
WNDPROC m_lpfnOldWndProc;
#endif
// Enumeration is VWLC_ENUM_PARAM::nMessageOrID in EnumChildWndProc() call
enum { ENUM_FIND_CHILD_BY_CLASS = WM_USER + 4096,
};
protected:
// Enumerate child windows (for various reasons). LPARAM is a pointer to a VWLC_ENUM_PARAM struct
static BOOL CALLBACK EnumChildWndProc(HWND hWnd, LPARAM lParam)
{
VWCL_ENUM_PARAM* pEnumParam = (VWCL_ENUM_PARAM*)lParam;
assert(pEnumParam);
// Determine what we need to do
switch ( pEnumParam->nMessageOrID )
{
case WM_DESTROY:
::DestroyWindow(hWnd);
break;
case ENUM_FIND_CHILD_BY_CLASS:
{
// pEnumParam->lpInData is a string
LPCTSTR lpszFind = (LPCTSTR)pEnumParam->lpInData;
assert(lpszFind && lstrlen(lpszFind));
// Get the class of this window
TCHAR szClass[50];
::GetClassName(hWnd, szClass, sizeof(szClass)/sizeof(TCHAR));
// Did we find a hit?
if ( lstrcmpi(szClass, lpszFind) == 0 )
{
// Set the hWnd into the pEnumParam->lpOutData field and quit
pEnumParam->lpOutData = hWnd;
return FALSE;
}
break;
}
}
return TRUE;
}
#ifndef VWCL_WRAP_WINDOWS_ONLY
// Handler for WM_CLOSE. Default implementation calls DestroyWindow()
virtual void OnClose()
{ DestroyWindow(); }
// Handler for WM_COMMAND. Return 0 if message was handled
virtual int OnCommand(WORD wNotifyCode, WORD wID, HWND hWndControl)
{ return 1; }
// Handler for WM_CREATE. Return 0 if message was handled, -1 to stop window creation
virtual int OnCreate(LPCREATESTRUCT lpCreateStruct)
{ return 1; }
// Handler for WM_DESTROY. Return 0 if message was handled
virtual int OnDestroy()
{ return 1; }
// Handler for WM_PAINT. Return 0 if message was handled
virtual int OnPaint()
{ return 1; }
// Handler for WM_SIZE. Return 0 if message was handled
virtual int OnSize(WPARAM wFlags, int cx, int cy)
{ return 1; }
// Handler for WM_NOTIFY. Return 0 if message was handled
virtual LRESULT OnNotify(int nIDControl, LPNMHDR lpNMHDR)
{ return 1; }
// Support for reflected WM_NOTIFY messages. Derived class must
// return 0 is message was handled, -1 if handled and parent should
// NOT be notified, or 1 if message was not handled and parent should
// be notified. If -1 if returned, derived classes must also set
// the lCommonControlResult to the return value expected by the common control
virtual int OnReflectedNotify(LPNMHDR lpNMHDR, LPARAM& lCommonControlResult)
{ return 1; }
// Called after Attach() returns successfully
virtual void PostAttachWindow()
{;}
// Called after Create() returns successfully. Returning FALSE from
// this override will cause the window to be destroyed
virtual BOOL PostCreateWindow()
{ return TRUE;}
// Called after WM_DESTROY completes. Safe to do a delete this on VWindow object
virtual void PostNcDestroy()
{;}
// Custom virtual functions for common overrides and default returns
virtual BOOL PreCreateWindow(LPCREATESTRUCT lpCreateStruct)
{ return TRUE; }
#endif
};
#endif // __VWINDOW_HPP