wxWindow::Fit() infinite loop bug fixed

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

diff --git a/src/msw/utils.cpp b/src/msw/utils.cpp
index 6d51207e7c92e4884a76dac065d0825d98b99c91..c9c1d5b68a25991c22dbae05d7d7735386f18994 100644 (file)
--- a/src/msw/utils.cpp
+++ b/src/msw/utils.cpp
@@ -35,7 +35,7 @@
 
 #include <ctype.h>
 
-#if !defined(__GNUWIN32__) && !defined(__SALFORDC__)
+#if !defined(__GNUWIN32__) && !defined(__WXWINE__) && !defined(__SALFORDC__)
 #include <direct.h>
 
 #ifndef __MWERKS__
@@ -56,7 +56,7 @@
 #include <dir.h>
 #endif
 
-#ifdef __WIN32__
+#if defined(__WIN32__) && !defined(__WXWINE__)
 #include <io.h>
 
 #ifndef __GNUWIN32__
@@ -75,6 +75,7 @@
 #include <stdarg.h>
 
 //// BEGIN for console support: VC++ only
+#ifdef __VISUALC__
 
 #include "wx/msw/msvcrt.h"
 
@@ -103,6 +104,8 @@
 #  define new new(__FILE__,__LINE__)
 #  endif
 
+#endif
+  // __VISUALC__
 /// END for console support
 
 // In the WIN.INI file
@@ -270,7 +273,7 @@ wxShell(const wxString& command)
 }
 
 // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
-long wxGetFreeMemory(void)
+long wxGetFreeMemory()
 {
 #if defined(__WIN32__) && !defined(__BORLANDC__) && !defined(__TWIN32__)
   MEMORYSTATUS memStatus;
@@ -287,7 +290,7 @@ static bool inTimer = FALSE;
 class wxSleepTimer: public wxTimer
 {
  public:
-  inline void Notify(void)
+  inline void Notify()
   {
     inTimer = FALSE;
     Stop();
@@ -296,6 +299,27 @@ class wxSleepTimer: public wxTimer
 
 static wxTimer *wxTheSleepTimer = NULL;
 
+void wxUsleep(unsigned long milliseconds)
+{
+#ifdef __WIN32__
+    ::Sleep(milliseconds);
+#else
+  if (inTimer)
+    return;
+
+  wxTheSleepTimer = new wxSleepTimer;
+  inTimer = TRUE;
+  wxTheSleepTimer->Start(milliseconds);
+  while (inTimer)
+  {
+    if (wxTheApp->Pending())
+      wxTheApp->Dispatch();
+  }
+  delete wxTheSleepTimer;
+  wxTheSleepTimer = NULL;
+#endif
+}
+
 void wxSleep(int nSecs)
 {
 #if 0 // WIN32 hangs app
@@ -318,7 +342,7 @@ void wxSleep(int nSecs)
 }
 
 // Consume all events until no more left
-void wxFlushEvents(void)
+void wxFlushEvents()
 {
 //  wxYield();
 }
@@ -357,7 +381,7 @@ void wxFatalError(const wxString& msg, const wxString& title)
 }
 
 // Emit a beeeeeep
-void wxBell(void)
+void wxBell()
 {
     // Removed by RD because IHMO syncronous sound is a Bad Thing.  MessageBeep
     // will do a similar thing anyway if there is no sound card...
@@ -509,44 +533,46 @@ bool wxGetResource(const wxString& section, const wxString& entry, int *value, c
 }
 #endif // wxUSE_RESOURCES
 
-// Old cursor
-static HCURSOR wxBusyCursorOld = 0;
-static int wxBusyCursorCount = 0;
+// ---------------------------------------------------------------------------
+// helper functions for showing a "busy" cursor
+// ---------------------------------------------------------------------------
+
+HCURSOR gs_wxBusyCursor = 0;     // new, busy cursor
+HCURSOR gs_wxBusyCursorOld = 0;  // old cursor
+static int gs_wxBusyCursorCount = 0;
 
 // Set the cursor to the busy cursor for all windows
 void wxBeginBusyCursor(wxCursor *cursor)
 {
-  wxBusyCursorCount ++;
-  if (wxBusyCursorCount == 1)
-  {
-    wxBusyCursorOld = ::SetCursor((HCURSOR) cursor->GetHCURSOR());
-  }
-  else
-  {
-    (void)::SetCursor((HCURSOR) cursor->GetHCURSOR());
-  }
+    if ( gs_wxBusyCursorCount++ == 0 )
+    {
+        gs_wxBusyCursor = (HCURSOR)cursor->GetHCURSOR();
+        gs_wxBusyCursorOld = ::SetCursor(gs_wxBusyCursor);
+    }
+    //else: nothing to do, already set
 }
 
 // Restore cursor to normal
-void wxEndBusyCursor(void)
+void wxEndBusyCursor()
 {
-  if (wxBusyCursorCount == 0)
-    return;
+    wxCHECK_RET( gs_wxBusyCursorCount > 0,
+                 "no matching wxBeginBusyCursor() for wxEndBusyCursor()" );
 
-  wxBusyCursorCount --;
-  if (wxBusyCursorCount == 0)
-  {
-    ::SetCursor(wxBusyCursorOld);
-    wxBusyCursorOld = 0;
-  }
+    if ( --gs_wxBusyCursorCount == 0 )
+    {
+        ::SetCursor(gs_wxBusyCursorOld);
+
+        gs_wxBusyCursorOld = 0;
+    }
 }
 
 // TRUE if we're between the above two calls
-bool wxIsBusy(void)
+bool wxIsBusy()
 {
-  return (wxBusyCursorCount > 0);
+  return (gs_wxBusyCursorCount > 0);
 }
 
+// ---------------------------------------------------------------------------
 const char* wxGetHomeDir(wxString *pstr)
 {
   wxString& strDir = *pstr;
@@ -619,7 +645,7 @@ char *wxGetUserHome (const wxString& user)
         if ((home = getenv("TMP")) != NULL ||
             (home = getenv("TMPDIR")) != NULL ||
             (home = getenv("TEMP")) != NULL)
-            return *home ? home : "\\";
+            return *home ? home : (char*)"\\";
       }
       if (Stricmp(tmp, WXSTRINGCAST user1) == 0)
         user1 = "";
@@ -649,7 +675,8 @@ bool wxCheckForInterrupt(wxWindow *wnd)
     return TRUE;//*** temporary?
   }
   else{
-    wxError("wnd==NULL !!!");
+    wxFAIL_MSG("wnd==NULL !!!");
+
     return FALSE;//*** temporary?
   }
 }
@@ -703,7 +730,7 @@ void wxGetMousePosition( int* x, int* y )
 };
 
 // Return TRUE if we have a colour display
-bool wxColourDisplay(void)
+bool wxColourDisplay()
 {
   HDC dc = ::GetDC((HWND) NULL);
   bool flag;
@@ -717,7 +744,7 @@ bool wxColourDisplay(void)
 }
 
 // Returns depth of screen
-int wxDisplayDepth(void)
+int wxDisplayDepth()
 {
   HDC dc = ::GetDC((HWND) NULL);
   int planes = GetDeviceCaps(dc, PLANES);
@@ -769,6 +796,10 @@ bool wxDirExists(const wxString& dir)
 #endif
 }
 
+// ---------------------------------------------------------------------------
+// window information functions
+// ---------------------------------------------------------------------------
+
 wxString WXDLLEXPORT wxGetWindowText(WXHWND hWnd)
 {
     wxString str;
@@ -779,6 +810,58 @@ wxString WXDLLEXPORT wxGetWindowText(WXHWND hWnd)
     return str;
 }
 
+wxString WXDLLEXPORT wxGetWindowClass(WXHWND hWnd)
+{
+    wxString str;
+
+    int len = 256; // some starting value
+
+    for ( ;; )
+    {
+        // 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);
+
+        str.UngetWriteBuf();
+        if ( count == len )
+        {
+            // the class name might have been truncated, retry with larger
+            // buffer
+            len *= 2;
+        }
+        else
+        {
+            break;
+        }
+    }
+
+    return str;
+}
+
+WXWORD WXDLLEXPORT wxGetWindowId(WXHWND hWnd)
+{
+#ifndef __WIN32__
+    return GetWindowWord((HWND)hWnd, GWW_ID);
+#else // Win32
+    return GetWindowLong((HWND)hWnd, GWL_ID);
+#endif // Win16/32
+}
+
 #if 0
 //------------------------------------------------------------------------
 // wild character routines