Save the alpha values if the image has an alpha channel

[wxWidgets.git] / src / common / utilscmn.cpp

diff --git a/src/common/utilscmn.cpp b/src/common/utilscmn.cpp
index eefe29c5c971788a5c5a625f21b68e588eaeb2c7..2fd1c86901ba2a3088de2710faa9f59371cfe45b 100644 (file)
--- a/src/common/utilscmn.cpp
+++ b/src/common/utilscmn.cpp
@@ -17,7 +17,14 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) && !defined(__EMX__)
+// Some older compilers (such as EMX) cannot handle
+// #pragma interface/implementation correctly, iff 
+// #pragma implementation is used in _two_ translation
+// units (as created by e.g. event.cpp compiled for
+// libwx_base and event.cpp compiled for libwx_gui_core).
+// So we must not use those pragmas for those compilers in
+// such files.
     #pragma implementation "utils.h"
 #endif
 
@@ -54,6 +61,10 @@
 #include "wx/process.h"
 #include "wx/txtstrm.h"
 
+#if defined(__WXWINCE__) && wxUSE_DATETIME
+#include "wx/datetime.h"
+#endif
+
 #include <ctype.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -73,17 +84,17 @@
     #include "wx/statusbr.h"
 #endif // wxUSE_GUI
 
+#ifndef __WXWINCE__
 #include <time.h>
+#else
+#include "wx/msw/wince/time.h"
+#endif
 
-#ifndef __MWERKS__
+#if !defined(__MWERKS__) && !defined(__WXWINCE__)
     #include <sys/types.h>
     #include <sys/stat.h>
 #endif
 
-#ifdef __SALFORDC__
-    #include <clib.h>
-#endif
-
 #ifdef __WXMSW__
     #include "wx/msw/private.h"
 #endif
@@ -95,8 +106,8 @@
 // ----------------------------------------------------------------------------
 
 #if WXWIN_COMPATIBILITY_2_2
-    const wxChar *wxInternalErrorStr = wxT("wxWindows Internal Error");
-    const wxChar *wxFatalErrorStr = wxT("wxWindows Fatal Error");
+    const wxChar *wxInternalErrorStr = wxT("wxWidgets Internal Error");
+    const wxChar *wxFatalErrorStr = wxT("wxWidgets Fatal Error");
 #endif // WXWIN_COMPATIBILITY_2_2
 
 // ============================================================================
@@ -119,25 +130,6 @@ copystring (const wxChar *s)
 
 #endif // WXWIN_COMPATIBILITY_2_4
 
-// Id generation
-static long wxCurrentId = 100;
-
-long
-wxNewId (void)
-{
-  return wxCurrentId++;
-}
-
-long
-wxGetCurrentId(void) { return wxCurrentId; }
-
-void
-wxRegisterId (long id)
-{
-  if (id >= wxCurrentId)
-    wxCurrentId = id + 1;
-}
-
 // ----------------------------------------------------------------------------
 // String <-> Number conversions (deprecated)
 // ----------------------------------------------------------------------------
@@ -259,10 +251,19 @@ wxString wxDecToHex(int dec)
 // Return the current date/time
 wxString wxNow()
 {
+#ifdef __WXWINCE__
+#if wxUSE_DATETIME
+    wxDateTime now = wxDateTime::Now();
+    return now.Format();
+#else
+    return wxEmptyString;
+#endif
+#else
     time_t now = time((time_t *) NULL);
     char *date = ctime(&now);
     date[24] = '\0';
     return wxString::FromAscii(date);
+#endif
 }
 
 const wxChar *wxGetInstallPrefix()
@@ -299,7 +300,12 @@ int wxGetOsVersion(int *verMaj, int *verMin)
     if ( ! traits )
         traits = &traitsConsole;
 
-    return traits->GetOSVersion(verMaj, verMin);
+    wxToolkitInfo& info = traits->GetToolkitInfo();
+    if ( verMaj )
+        *verMaj = info.versionMajor;
+    if ( verMin )
+        *verMin = info.versionMinor;
+    return info.os;
 }
 
 // ----------------------------------------------------------------------------
@@ -341,8 +347,7 @@ wxString wxGetUserId()
     static const int maxLoginLen = 256; // FIXME arbitrary number
 
     wxString buf;
-    bool ok = wxGetUserId(buf.GetWriteBuf(maxLoginLen), maxLoginLen);
-    buf.UngetWriteBuf();
+    bool ok = wxGetUserId(wxStringBuffer(buf, maxLoginLen), maxLoginLen);
 
     if ( !ok )
         buf.Empty();
@@ -355,8 +360,7 @@ wxString wxGetUserName()
     static const int maxUserNameLen = 1024; // FIXME arbitrary number
 
     wxString buf;
-    bool ok = wxGetUserName(buf.GetWriteBuf(maxUserNameLen), maxUserNameLen);
-    buf.UngetWriteBuf();
+    bool ok = wxGetUserName(wxStringBuffer(buf, maxUserNameLen), maxUserNameLen);
 
     if ( !ok )
         buf.Empty();
@@ -369,9 +373,7 @@ wxString wxGetHostName()
     static const size_t hostnameSize = 257;
 
     wxString buf;
-    bool ok = wxGetHostName(buf.GetWriteBuf(hostnameSize), hostnameSize);
-
-    buf.UngetWriteBuf();
+    bool ok = wxGetHostName(wxStringBuffer(buf, hostnameSize), hostnameSize);
 
     if ( !ok )
         buf.Empty();
@@ -384,9 +386,7 @@ wxString wxGetFullHostName()
     static const size_t hostnameSize = 257;
 
     wxString buf;
-    bool ok = wxGetFullHostName(buf.GetWriteBuf(hostnameSize), hostnameSize);
-
-    buf.UngetWriteBuf();
+    bool ok = wxGetFullHostName(wxStringBuffer(buf, hostnameSize), hostnameSize);
 
     if ( !ok )
         buf.Empty();
@@ -541,6 +541,25 @@ bool wxYieldIfNeeded()
 
 #if wxUSE_GUI
 
+// Id generation
+static long wxCurrentId = 100;
+
+long
+wxNewId (void)
+{
+  return wxCurrentId++;
+}
+
+long
+wxGetCurrentId(void) { return wxCurrentId; }
+
+void
+wxRegisterId (long id)
+{
+  if (id >= wxCurrentId)
+    wxCurrentId = id + 1;
+}
+
 #if wxUSE_MENUS
 
 // ----------------------------------------------------------------------------
@@ -728,7 +747,14 @@ wxWindow* wxGenericFindWindowAtPoint(const wxPoint& pt)
 int wxMessageBox(const wxString& message, const wxString& caption, long style,
                  wxWindow *parent, int WXUNUSED(x), int WXUNUSED(y) )
 {
-    wxMessageDialog dialog(parent, message, caption, style);
+    long decorated_style = style;
+
+    if ( ( style & ( wxICON_EXCLAMATION | wxICON_HAND | wxICON_INFORMATION | wxICON_QUESTION ) ) == 0 )
+    {
+        decorated_style |= ( style & wxYES ) ? wxICON_QUESTION : wxICON_INFORMATION ;
+    }
+
+    wxMessageDialog dialog(parent, message, caption, decorated_style);
 
     int ans = dialog.ShowModal();
     switch ( ans )