-
<HTML>
<HEAD>
<li><a href="#specific">How does wxWindows 2 support platform-specific features?</a></li>
<li><a href="#stl">Does wxWindows use STL? or the standard string class?</a></li>
<li><a href="#richedit">Is there a rich edit/markup widget for wxWindows 2?</a></ li>
+<li><a href="#exceptions">How to use C++ exceptions with wxWindows?</a></ li>
<li><a href="#dev">How is wxWindows 2 being developed?</a></li>
<li><a href="#distrib">How is wxWindows 2 distributed?</a></li>
<li><a href="#future">What are the plans for the future?</a></li>
<P>
+<h3><a name="exceptions">How to use C++ exceptions with wxWindows?</a></h3>
+
+wxWindows library itself is unfortunately <i>not</i> exception-safe (as its
+initial version predates, by far, the addition of the exceptions to the C++
+language). However you can still use the exceptions in your own code and use
+the other libraries using the exceptions for the error reporting together with
+wxWindows.
+
+<p>
+There are a few issues to keep in mind, though:
+<ul>
+ <li>You shouldn't let the exceptions propagate through wxWindows code,
+ in particular you should always catch the exceptions thrown by the
+ functions called from an event handler in the handler itself and not
+ let them propagate upwards to wxWindows.
+
+ <li>You may need to ensure that the compiler support for the exceptions is
+ enabled as, considering that wxWindows itself doesn't use the
+ exceptions and turning their support on results in the library size
+ augmentation of 10% to 20%, it is turned off by default for a few
+ compilers. Moreover, for gcc (or at least its mingw version) you must
+ also turn on the RTTI support to be able to use the exceptions, so you
+ should use <tt>--disable-no_rtti --disable-no_exceptions</tt> options
+ when configuring the library (attention to the double negation).
+</ul>
+
+<p>
+
<H3><a name="dev">How is wxWindows 2 being developed?</a></H3>
We are using the <a href="cvs.htm">CVS</a> system to develop and maintain wxWindows. This allows
<li><a href="#gnome">Does wxGTK have GNOME support?</a></li>
<li><a href="#redhat">Warning about GTK libraries supplied with RedHat</a></li>
<li><a href="#wxgtk">What is wxWindows 2 for GTK?</a></li>
+<li><a href="#bincompat">What range of Intel Linux platforms will a given application binary be usable on?</li>
+
<hr>
wxWindows 2 for GTK is a port of wxWindows to the <a href="http://www.gimp.org/gtk" target=_top>GTK+ toolkit</a>,
This problem can be solved by updating GTK with an official distribution of the library.
<P>
+<h3><a name="bincompat">What range of Intel Linux platforms will a given application binary be usable on?</h3>
+
+Robert Roebling replies:<P>
+
+"The important thing is the libc version that your app
+is linked against. The most recent version is 2.2.5
+and programs linked against it will not run with version
+2.1.X so that you will fare best if you compile your app
+on a 2.1.X system. It will then run on practically all
+Linux distros (if you link you app statically against
+the image libraries and std C++ lib)."
</font>
<hr>
<h3>List of questions in this category</h3>
<ul>
-<li><a href="#release">When is wxMac 2.x due to be released?</a></li>
+<li><a href="#release">Where should I download wxMac from?</a></li>
<li><a href="#macplat">Which Mac platforms are supported?</a></li>
<li><a href="#macosx">How is the Mac OS X port different from the Classic Mac OS port?</a></li>
-<li><a href="#macclassic">How are improvements to the Classic Mac OS port integra ted into the Mac OS X port?</a></li>
+<li><a href="#macclassic">How are improvements to the Classic Mac OS port integrated into the Mac OS X port?</a></li>
<li><a href="#compilers">What compilers are supported?</a></li>
<li><a href="#filetypes">How does CVS handle file types/creators under Mac OS 8.x /9.x?</a></li>
<li><a href="#filetypesx">How does CVS handle file types/creators under Mac OS X? </a></li>
<li><a href="#aboutmenu">How does wxMac support the standard Apple About menu item and Help menu?</a></li>
</ul>
<hr>
-<h3><a name="release">When is wxMac 2.x due to be released?</a></h3>
-There is a <a href="dl_mac2.htm">preview</a> available.
-The author of this port is <a href="mailto:csomor@advancedconcepts.ch">Stefan Csomor</a>.
-<P>
-
-<table border=0 cellpadding=5>
-<tr>
-<td bgcolor="#004080">
-<font face="Arial, Lucida Sans, Helvetica">
-<font size=2>
-Please note that the version of wxMac in CVS is more robust and nearly feature-complete compared with the packaged 2.0 release.
-Until a new release is made, it is recommended that you download the wxMac 2.3.1 <a href="dl_mac2.htm#dev">development snapshot</a> or the sources from the <a href="cvs.htm">CVS trunk</a>.
-</font>
-</font></td>
-</tr>
-</table>
+<h3><a name="release">Where should I download wxMac from?</a></h3>
+Please see the <a href="dl_mac2.htm">downloads page</a>.
+The version of wxMac in CVS advances quickly so it is recommended that you download the
+the sources from the <a href="cvs.htm">CVS trunk</a>.
+There is also a wxMac 2.3.1 <a href="dl_mac2.htm#dev">development snapshot</a>.
+<P>
+The author of this port is <a href="mailto:csomor@advancedconcepts.ch">Stefan Csomor</a>.
<P>
<h3><a name="macplat">Which Mac platforms are supported?</a></h3>
-
<html>
<head>
<title>Platforms supported by wxWindows 2.x</title>
</tr>
<tr>
-<td bgcolor="#F0F0F0" align=center valign=center rowspan=3>IRIX</td>
- <td>wxGTK</td><td align=center><IMG SRC="images/yes.gif" ALT=Ok></td><td><br></td><td>You may need to use <tt>--disable-catch_segvs</tt> if you get compiler error in utilsunx.cpp</td>
-<tr> <td>wxMotif with MIPSPro 7.30</td><td align=center><IMG SRC="images/yes.gif" ALT=Ok></td><td>David Marshall</td><td>On IRIX 6.5.6 (Indigo2, 64bit), with SGI Motif 1.2</td>
-<tr> <td>wxMotif with "CC -mips3 -n32"</td><td align=center><IMG SRC="images/yes.gif" ALT=Ok></td><td>Ian</td><td>You need to set LD_LIBRARYN32_PATH</td>
+<td bgcolor="#F0F0F0" align=center valign=center rowspan=6>IRIX</td>
+<tr> <td bgcolor="#fafafa" colspan=5>
+ Note that all entries use MIPSPro 7.3 compiler on IRIX 6.5.9 with <tt>-mips3 -n32</tt> flags if not mentioned otherwise.
+ Also note that you need to set <tt>LD_LIBRARYN32_PATH</tt> under IRIX to run wxWindows programs.
+ </td>
+<tr> <td>wxGTK 2.2</td><td align=center><IMG SRC="images/yes.gif" ALT=Ok></td><td>Ian</td><td>You may need to use <tt>--disable-catch_segvs</tt> if you get compiler error in utilsunx.cpp</td>
+<tr> <td>wxGTK 2.3</td><td align=center><IMG SRC="images/yes.gif" ALT=Ok></td><td>Carl Godkin</td><td><br></td>
+<tr> <td rowspan=2>wxMotif</td><td align=center><IMG SRC="images/yes.gif" ALT=Ok></td><td>David Marshall</td><td>On IRIX 6.5.6 (Indigo2, 64bit), with SGI Motif 1.2</td>
+<tr> <td align=center><IMG SRC="images/yes.gif" ALT=Ok></td><td>Ian</td><td><br></td>
</tr>
<tr>
// the application, for example)
virtual void AddHelp(wxWindowID id, const wxString& text);
+ // removes the association
+ virtual void RemoveHelp(wxWindowBase* window);
+
// virtual dtor for any base class
virtual ~wxHelpProvider();
virtual bool ShowHelp(wxWindowBase *window);
virtual void AddHelp(wxWindowBase *window, const wxString& text);
virtual void AddHelp(wxWindowID id, const wxString& text);
+ virtual void RemoveHelp(wxWindowBase* window);
protected:
// we use 2 hashes for storing the help strings associated with windows
// and the wasFound is set to FALSE if not NULL
wxString Get(long key, bool *wasFound = NULL) const;
+ // remove the item, returning TRUE if the item was found and deleted
+ bool Delete(long key) const;
+
// clean up
void Destroy();
{
}
+// removes the association
+void wxHelpProvider::RemoveHelp(wxWindowBase* WXUNUSED(window))
+{
+}
+
wxHelpProvider::~wxHelpProvider()
{
}
m_hashIds.Put(id, text);
}
+// removes the association
+void wxSimpleHelpProvider::RemoveHelp(wxWindowBase* window)
+{
+ m_hashWindows.Delete((long)window);
+}
+
bool wxSimpleHelpProvider::ShowHelp(wxWindowBase *window)
{
#if wxUSE_TIPWINDOW
return _T("");
}
+bool wxStringHashTable::Delete(long key) const
+{
+ wxCHECK_MSG( m_hashSize, FALSE, _T("must call Create() first") );
+
+ size_t slot = (size_t)abs((int)(key % (long)m_hashSize));
+
+ wxArrayLong *keys = m_keys[slot];
+ if ( keys )
+ {
+ size_t count = keys->GetCount();
+ for ( size_t n = 0; n < count; n++ )
+ {
+ if ( keys->Item(n) == key )
+ {
+ keys.RemoveAt(n);
+ m_values[slot]->RemoveAt(n);
+ return TRUE;
+ }
+ }
+ }
+
+ return FALSE;
+}
+
// ----------------------------------------------------------------------------
// old not type safe wxHashTable
// ----------------------------------------------------------------------------
projects / wxWidgets.git / commitdiff
