another segfault fix

[wxWidgets.git] / src / msw / utils.cpp

diff --git a/src/msw/utils.cpp b/src/msw/utils.cpp
index dea7aeb352d05cd47f9beac40c61ba0b9ab5e3c8..590486daf8f55fc2438e227b38e203308f8745f4 100644 (file)
--- a/src/msw/utils.cpp
+++ b/src/msw/utils.cpp
@@ -31,9 +31,11 @@
 #ifndef WX_PRECOMP
     #include "wx/utils.h"
     #include "wx/app.h"
 #ifndef WX_PRECOMP
     #include "wx/utils.h"
     #include "wx/app.h"

-    #include "wx/cursor.h"

     #include "wx/intl.h"
     #include "wx/log.h"
     #include "wx/intl.h"
     #include "wx/log.h"

+#if wxUSE_GUI
+    #include "wx/cursor.h"
+#endif

 #endif  //WX_PRECOMP
 
 // In some mingws there is a missing extern "C" int the winsock header,
 #endif  //WX_PRECOMP
 
 // In some mingws there is a missing extern "C" int the winsock header,


@@ -41,7 +43,7 @@
 // #include "wx/msw/private.h" which itself includes <windows.h>, as this
 // one in turn includes <winsock.h> unless we define WIN32_LEAN_AND_MEAN.
 //
 // #include "wx/msw/private.h" which itself includes <windows.h>, as this
 // one in turn includes <winsock.h> unless we define WIN32_LEAN_AND_MEAN.
 //

-#if defined(__WIN32__) && !defined(__TWIN32__) && ! (defined(__GNUWIN32__) && !defined(__MINGW32__))
+#if defined(__WIN32__) && !defined(__TWIN32__) && !defined(__WXMICROWIN__) && ! (defined(__GNUWIN32__) && !defined(__MINGW32__))

 extern "C" {
     #include <winsock.h>    // we use socket functions in wxGetFullHostName()
 }
 extern "C" {
     #include <winsock.h>    // we use socket functions in wxGetFullHostName()
 }


@@ -51,7 +53,7 @@ extern "C" {
 
 #include "wx/timer.h"
 
 
 #include "wx/timer.h"
 

-#if !defined(__GNUWIN32__) && !defined(__WXWINE__) && !defined(__SALFORDC__)
+#if !defined(__GNUWIN32__) && !defined(__WXWINE__) && !defined(__SALFORDC__) && !defined(__WXMICROWIN__)

     #include <direct.h>
 
     #ifndef __MWERKS__
     #include <direct.h>
 
     #ifndef __MWERKS__


@@ -80,7 +82,7 @@ extern "C" {
     #include <lm.h>
 #endif // USE_NET_API
 
     #include <lm.h>
 #endif // USE_NET_API
 

-#if defined(__WIN32__) && !defined(__WXWINE__)
+#if defined(__WIN32__) && !defined(__WXWINE__) && !defined(__WXMICROWIN__)

     #include <io.h>
 
     #ifndef __GNUWIN32__
     #include <io.h>
 
     #ifndef __GNUWIN32__


@@ -103,8 +105,6 @@ extern "C" {
 
 #include "wx/ioswrap.h"
 
 
 #include "wx/ioswrap.h"
 

-#include "wx/ioswrap.h"
-

 /* Need to undef new if including crtdbg.h */
 #  ifdef new
 #  undef new
 /* Need to undef new if including crtdbg.h */
 #  ifdef new
 #  undef new


@@ -131,11 +131,13 @@ static const wxChar WX_SECTION[] = wxT("wxWindows");
 static const wxChar eUSERNAME[]  = wxT("UserName");
 
 // these are only used under Win16
 static const wxChar eUSERNAME[]  = wxT("UserName");
 
 // these are only used under Win16

-#ifndef __WIN32__
+#if !defined(__WIN32__) && !defined(__WXMICROWIN__)

 static const wxChar eHOSTNAME[]  = wxT("HostName");
 static const wxChar eUSERID[]    = wxT("UserId");
 #endif // !Win32
 
 static const wxChar eHOSTNAME[]  = wxT("HostName");
 static const wxChar eUSERID[]    = wxT("UserId");
 #endif // !Win32
 

+#ifndef __WXMICROWIN__
+

 // ============================================================================
 // implementation
 // ============================================================================
 // ============================================================================
 // implementation
 // ============================================================================


@@ -147,7 +149,7 @@ static const wxChar eUSERID[]    = wxT("UserId");
 // Get hostname only (without domain name)
 bool wxGetHostName(wxChar *buf, int maxSize)
 {
 // Get hostname only (without domain name)
 bool wxGetHostName(wxChar *buf, int maxSize)
 {

-#if defined(__WIN32__) && !defined(__TWIN32__)
+#if defined(__WIN32__) && !defined(__TWIN32__) && !defined(__WXMICROWIN__)

     DWORD nSize = maxSize;
     if ( !::GetComputerName(buf, &nSize) )
     {
     DWORD nSize = maxSize;
     if ( !::GetComputerName(buf, &nSize) )
     {


@@ -173,7 +175,7 @@ bool wxGetHostName(wxChar *buf, int maxSize)
 // get full hostname (with domain name if possible)
 bool wxGetFullHostName(wxChar *buf, int maxSize)
 {
 // get full hostname (with domain name if possible)
 bool wxGetFullHostName(wxChar *buf, int maxSize)
 {

-#if defined(__WIN32__) && !defined(__TWIN32__) && ! (defined(__GNUWIN32__) && !defined(__MINGW32__))
+#if defined(__WIN32__) && !defined(__TWIN32__) && !defined(__WXMICROWIN__) && ! (defined(__GNUWIN32__) && !defined(__MINGW32__))

     // TODO should use GetComputerNameEx() when available
     WSADATA wsa;
     if ( WSAStartup(MAKEWORD(1, 1), &wsa) == 0 )
     // TODO should use GetComputerNameEx() when available
     WSADATA wsa;
     if ( WSAStartup(MAKEWORD(1, 1), &wsa) == 0 )


@@ -218,7 +220,7 @@ bool wxGetFullHostName(wxChar *buf, int maxSize)
 // Get user ID e.g. jacs
 bool wxGetUserId(wxChar *buf, int maxSize)
 {
 // Get user ID e.g. jacs
 bool wxGetUserId(wxChar *buf, int maxSize)
 {

-#if defined(__WIN32__) && !defined(__win32s__) && !defined(__TWIN32__)
+#if defined(__WIN32__) && !defined(__win32s__) && !defined(__TWIN32__) && !defined(__WXMICROWIN__)

     DWORD nSize = maxSize;
     if ( ::GetUserName(buf, &nSize) == 0 )
     {
     DWORD nSize = maxSize;
     if ( ::GetUserName(buf, &nSize) == 0 )
     {


@@ -423,7 +425,9 @@ wxChar *wxGetUserHome(const wxString& WXUNUSED(user))
 
 bool wxDirExists(const wxString& dir)
 {
 
 bool wxDirExists(const wxString& dir)
 {

-#if defined(__WIN32__)
+#ifdef __WXMICROWIN__
+    return wxPathExist(dir);
+#elif defined(__WIN32__)

     DWORD attribs = GetFileAttributes(dir);
     return ((attribs != (DWORD)-1) && (attribs & FILE_ATTRIBUTE_DIRECTORY));
 #else // Win16
     DWORD attribs = GetFileAttributes(dir);
     return ((attribs != (DWORD)-1) && (attribs & FILE_ATTRIBUTE_DIRECTORY));
 #else // Win16


@@ -445,6 +449,101 @@ bool wxDirExists(const wxString& dir)
 #endif // Win32/16
 }
 
 #endif // Win32/16
 }
 

+bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree)
+{
+    if ( path.empty() )
+        return FALSE;
+
+// old w32api don't have ULARGE_INTEGER
+#if defined(__WIN32__) && \
+    (!defined(__GNUWIN32__) || wxCHECK_W32API_VERSION( 0, 3 ))
+    // GetDiskFreeSpaceEx() is not available under original Win95, check for
+    // it
+    typedef BOOL (*GetDiskFreeSpaceEx_t)(LPCTSTR,
+                                         PULARGE_INTEGER,
+                                         PULARGE_INTEGER,
+                                         PULARGE_INTEGER);
+
+    GetDiskFreeSpaceEx_t
+        pGetDiskFreeSpaceEx = (GetDiskFreeSpaceEx_t)::GetProcAddress
+                              (
+                                ::GetModuleHandle(_T("kernel32.dll")),
+#if wxUSE_UNICODE
+                                "GetDiskFreeSpaceExW"
+#else
+                                "GetDiskFreeSpaceExA"
+#endif
+                              );
+
+    if ( pGetDiskFreeSpaceEx )
+    {
+        ULARGE_INTEGER bytesFree, bytesTotal;
+
+        // may pass the path as is, GetDiskFreeSpaceEx() is smart enough
+        if ( !pGetDiskFreeSpaceEx(path,
+                                  &bytesFree,
+                                  &bytesTotal,
+                                  NULL) )
+        {
+            wxLogLastError(_T("GetDiskFreeSpaceEx"));
+
+            return FALSE;
+        }
+
+        if ( pTotal )
+        {
+            *pTotal = wxLongLong(bytesTotal.HighPart, bytesTotal.LowPart);
+        }
+
+        if ( pFree )
+        {
+            *pFree = wxLongLong(bytesFree.HighPart, bytesFree.LowPart);
+        }
+    }
+    else
+#endif // Win32
+    {
+        // there's a problem with drives larger than 2GB, GetDiskFreeSpaceEx()
+        // should be used instead - but if it's not available, fall back on
+        // GetDiskFreeSpace() nevertheless...
+
+        DWORD lSectorsPerCluster,
+              lBytesPerSector,
+              lNumberOfFreeClusters,
+              lTotalNumberOfClusters;
+
+        // FIXME: this is wrong, we should extract the root drive from path
+        //        instead, but this is the job for wxFileName...
+        if ( !::GetDiskFreeSpace(path,
+                                 &lSectorsPerCluster,
+                                 &lBytesPerSector,
+                                 &lNumberOfFreeClusters,
+                                 &lTotalNumberOfClusters) )
+        {
+            wxLogLastError(_T("GetDiskFreeSpace"));
+
+            return FALSE;
+        }
+
+        wxLongLong lBytesPerCluster = lSectorsPerCluster;
+        lBytesPerCluster *= lBytesPerSector;
+
+        if ( pTotal )
+        {
+            *pTotal = lBytesPerCluster;
+            *pTotal *= lTotalNumberOfClusters;
+        }
+
+        if ( pFree )
+        {
+            *pFree = lBytesPerCluster;
+            *pFree *= lNumberOfFreeClusters;
+        }
+    }
+
+    return TRUE;
+}
+

 // ----------------------------------------------------------------------------
 // env vars
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // env vars
 // ----------------------------------------------------------------------------


@@ -926,6 +1025,8 @@ void wxSleep(int nSecs)
 }
 
 #endif // wxUSE_GUI/!wxUSE_GUI
 }
 
 #endif // wxUSE_GUI/!wxUSE_GUI

+#endif
+  // __WXMICROWIN__

 
 // ----------------------------------------------------------------------------
 // deprecated (in favour of wxLog) log functions
 
 // ----------------------------------------------------------------------------
 // deprecated (in favour of wxLog) log functions


@@ -934,6 +1035,7 @@ void wxSleep(int nSecs)
 #if wxUSE_GUI
 
 // Output a debug mess., in a system dependent fashion.
 #if wxUSE_GUI
 
 // Output a debug mess., in a system dependent fashion.

+#ifndef __WXMICROWIN__

 void wxDebugMsg(const wxChar *fmt ...)
 {
   va_list ap;
 void wxDebugMsg(const wxChar *fmt ...)
 {
   va_list ap;


@@ -965,6 +1067,7 @@ void wxFatalError(const wxString& msg, const wxString& title)
   wxSprintf(wxBuffer, wxT("%s: %s"), WXSTRINGCAST title, WXSTRINGCAST msg);
   FatalAppExit(0, (LPCTSTR)wxBuffer);
 }
   wxSprintf(wxBuffer, wxT("%s: %s"), WXSTRINGCAST title, WXSTRINGCAST msg);
   FatalAppExit(0, (LPCTSTR)wxBuffer);
 }

+#endif // __WXMICROWIN__

 
 // ----------------------------------------------------------------------------
 // functions to work with .INI files
 
 // ----------------------------------------------------------------------------
 // functions to work with .INI files


@@ -1091,7 +1194,9 @@ void wxBeginBusyCursor(wxCursor *cursor)
     if ( gs_wxBusyCursorCount++ == 0 )
     {
         gs_wxBusyCursor = (HCURSOR)cursor->GetHCURSOR();
     if ( gs_wxBusyCursorCount++ == 0 )
     {
         gs_wxBusyCursor = (HCURSOR)cursor->GetHCURSOR();

+#ifndef __WXMICROWIN__

         gs_wxBusyCursorOld = ::SetCursor(gs_wxBusyCursor);
         gs_wxBusyCursorOld = ::SetCursor(gs_wxBusyCursor);

+#endif

     }
     //else: nothing to do, already set
 }
     }
     //else: nothing to do, already set
 }


@@ -1104,8 +1209,9 @@ void wxEndBusyCursor()
 
     if ( --gs_wxBusyCursorCount == 0 )
     {
 
     if ( --gs_wxBusyCursorCount == 0 )
     {

+#ifndef __WXMICROWIN__

         ::SetCursor(gs_wxBusyCursorOld);
         ::SetCursor(gs_wxBusyCursorOld);

-
+#endif

         gs_wxBusyCursorOld = 0;
     }
 }
         gs_wxBusyCursorOld = 0;
     }
 }


@@ -1135,6 +1241,7 @@ bool wxCheckForInterrupt(wxWindow *wnd)
 // MSW only: get user-defined resource from the .res file.
 // Returns NULL or newly-allocated memory, so use delete[] to clean up.
 
 // MSW only: get user-defined resource from the .res file.
 // Returns NULL or newly-allocated memory, so use delete[] to clean up.
 

+#ifndef __WXMICROWIN__

 wxChar *wxLoadUserResource(const wxString& resourceName, const wxString& resourceType)
 {
     HRSRC hResource = ::FindResource(wxGetInstance(), resourceName, resourceType);
 wxChar *wxLoadUserResource(const wxString& resourceName, const wxString& resourceType)
 {
     HRSRC hResource = ::FindResource(wxGetInstance(), resourceName, resourceType);


@@ -1168,6 +1275,7 @@ wxChar *wxLoadUserResource(const wxString& resourceName, const wxString& resourc
 
     return s;
 }
 
     return s;
 }

+#endif

 
 // ----------------------------------------------------------------------------
 // get display info
 
 // ----------------------------------------------------------------------------
 // get display info


@@ -1186,6 +1294,10 @@ void wxGetMousePosition( int* x, int* y )
 // Return TRUE if we have a colour display
 bool wxColourDisplay()
 {
 // Return TRUE if we have a colour display
 bool wxColourDisplay()
 {

+#ifdef __WXMICROWIN__
+    // MICROWIN_TODO
+    return TRUE;
+#else

     // this function is called from wxDC ctor so it is called a *lot* of times
     // hence we optimize it a bit but doign the check only once
     //
     // this function is called from wxDC ctor so it is called a *lot* of times
     // hence we optimize it a bit but doign the check only once
     //


@@ -1202,6 +1314,7 @@ bool wxColourDisplay()
     }
 
     return s_isColour != 0;
     }
 
     return s_isColour != 0;

+#endif

 }
 
 // Returns depth of screen
 }
 
 // Returns depth of screen


@@ -1214,23 +1327,37 @@ int wxDisplayDepth()
 // Get size of display
 void wxDisplaySize(int *width, int *height)
 {
 // Get size of display
 void wxDisplaySize(int *width, int *height)
 {

+#ifdef __WXMICROWIN__
+    RECT rect;
+    HWND hWnd = GetDesktopWindow();
+    ::GetWindowRect(hWnd, & rect);
+
+    *width = rect.right - rect.left;
+    *height = rect.bottom - rect.top;
+#else

     ScreenHDC dc;
 
     if ( width ) *width = GetDeviceCaps(dc, HORZRES);
     if ( height ) *height = GetDeviceCaps(dc, VERTRES);
     ScreenHDC dc;
 
     if ( width ) *width = GetDeviceCaps(dc, HORZRES);
     if ( height ) *height = GetDeviceCaps(dc, VERTRES);

+#endif

 }
 
 void wxDisplaySizeMM(int *width, int *height)
 {
 }
 
 void wxDisplaySizeMM(int *width, int *height)
 {

+#ifdef __WXMICROWIN__
+    // MICROWIN_TODO
+    *width = 0; * height = 0;
+#else

     ScreenHDC dc;
 
     if ( width ) *width = GetDeviceCaps(dc, HORZSIZE);
     if ( height ) *height = GetDeviceCaps(dc, VERTSIZE);
     ScreenHDC dc;
 
     if ( width ) *width = GetDeviceCaps(dc, HORZSIZE);
     if ( height ) *height = GetDeviceCaps(dc, VERTSIZE);

+#endif

 }
 
 void wxClientDisplayRect(int *x, int *y, int *width, int *height)
 {
 }
 
 void wxClientDisplayRect(int *x, int *y, int *width, int *height)
 {

-#ifdef __WIN16__
+#if defined(__WIN16__) || defined(__WXMICROWIN__)

     *x = 0; *y = 0;
     wxDisplaySize(width, height);
 #else
     *x = 0; *y = 0;
     wxDisplaySize(width, height);
 #else


@@ -1254,9 +1381,13 @@ void wxClientDisplayRect(int *x, int *y, int *width, int *height)
 wxString WXDLLEXPORT wxGetWindowText(WXHWND hWnd)
 {
     wxString str;
 wxString WXDLLEXPORT wxGetWindowText(WXHWND hWnd)
 {
     wxString str;

-    int len = GetWindowTextLength((HWND)hWnd) + 1;
-    GetWindowText((HWND)hWnd, str.GetWriteBuf(len), len);
-    str.UngetWriteBuf();
+
+    if ( hWnd )
+    {
+        int len = GetWindowTextLength((HWND)hWnd) + 1;
+        ::GetWindowText((HWND)hWnd, str.GetWriteBuf(len), len);
+        str.UngetWriteBuf();
+    }

 
     return str;
 }
 
     return str;
 }


@@ -1265,41 +1396,30 @@ wxString WXDLLEXPORT wxGetWindowClass(WXHWND hWnd)
 {
     wxString str;
 
 {
     wxString str;
 

-    int len = 256; // some starting value
-
-    for ( ;; )
+    // MICROWIN_TODO
+#ifndef __WXMICROWIN__
+    if ( hWnd )

     {
     {

-        // as we've #undefined GetClassName we must now manually choose the
-        // right function to call
-        int count =
-
-        #ifndef __WIN32__
-            GetClassName
-        #else // Win32
-            #ifdef UNICODE
-                GetClassNameW
-            #else // !Unicode
-                #ifdef __TWIN32__
-                    GetClassName
-                #else // !Twin32
-                    GetClassNameA
-                #endif // Twin32/!Twin32
-            #endif // Unicode/ANSI
-        #endif // Win16/32
-                                    ((HWND)hWnd, str.GetWriteBuf(len), len);
+        int len = 256; // some starting value

 
 

-        str.UngetWriteBuf();
-        if ( count == len )
-        {
-            // the class name might have been truncated, retry with larger
-            // buffer
-            len *= 2;
-        }
-        else
+        for ( ;; )

         {
         {

-            break;
+            int count = ::GetClassName((HWND)hWnd, str.GetWriteBuf(len), len);
+
+            str.UngetWriteBuf();
+            if ( count == len )
+            {
+                // the class name might have been truncated, retry with larger
+                // buffer
+                len *= 2;
+            }
+            else
+            {
+                break;
+            }

         }
     }
         }
     }

+#endif // !__WXMICROWIN__

 
     return str;
 }
 
     return str;
 }


@@ -1576,4 +1696,13 @@ void wxRedirectIOToConsole()
 }
 #endif
 
 }
 #endif
 

+#ifdef __WXMICROWIN__
+int wxGetOsVersion(int *majorVsn, int *minorVsn)
+{
+    // MICROWIN_TODO
+    if (majorVsn) *majorVsn = 0;
+    if (minorVsn) *minorVsn = 0;
+    return wxUNIX;
+}
+#endif