Add comments explaining the workaround for mingw 3.2.3

[wxWidgets.git] / src / generic / dirctrlg.cpp

diff --git a/src/generic/dirctrlg.cpp b/src/generic/dirctrlg.cpp
index ab912cea5024845a0240f2fe65a7d84e2bc915c3..78501d449f1def57eaf9e21bb31e0c1cf460ee6d 100644 (file)
--- a/src/generic/dirctrlg.cpp
+++ b/src/generic/dirctrlg.cpp
@@ -57,6 +57,7 @@
 
 #ifdef __WXMSW__
 #include <windows.h>
+#include "wx/msw/winundef.h"
 
 // FIXME - Mingw32 1.0 has both _getdrive() and _chdrive(). For now, let's assume
 //         older releases don't, but it should be verified and the checks modified
@@ -258,7 +259,7 @@ bool wxIsDriveAvailable(const wxString& dirName)
         //     like it when MS-DOS app accesses empty floppy drive
         return (dirNameLower[0u] == wxT('a') ||
                 dirNameLower[0u] == wxT('b') ||
-                wxPathExists(dirNameLower));
+                wxDirExists(dirNameLower));
     }
     else
 #endif
@@ -317,7 +318,7 @@ bool wxIsDriveAvailable(const wxString& dirName)
     {
         wxString dirNameLower(dirName.Lower());
 #if defined(__GNUWIN32__) && !(defined(__MINGW32_MAJOR_VERSION) && __MINGW32_MAJOR_VERSION >= 1)
-        success = wxPathExists(dirNameLower);
+        success = wxDirExists(dirNameLower);
 #else
         #if defined(__OS2__)
         // Avoid changing to drive since no media may be inserted.
@@ -486,6 +487,26 @@ wxGenericDirCtrl::wxGenericDirCtrl(void)
     Init();
 }
 
+void wxGenericDirCtrl::ExpandRoot()
+{
+    ExpandDir(m_rootId); // automatically expand first level
+
+    // Expand and select the default path
+    if (!m_defaultPath.empty())
+    {
+        ExpandPath(m_defaultPath);
+    }
+#ifdef __UNIX__
+    else
+    {
+        // On Unix, there's only one node under the (hidden) root node. It
+        // represents the / path, so the user would always have to expand it;
+        // let's do it ourselves
+        ExpandPath( wxT("/") );
+    }
+#endif
+}
+
 bool wxGenericDirCtrl::Create(wxWindow *parent,
                               const wxWindowID id,
                               const wxString& dir,
@@ -503,7 +524,13 @@ bool wxGenericDirCtrl::Create(wxWindow *parent,
 
     Init();
 
-    long treeStyle = wxTR_HAS_BUTTONS | wxTR_HIDE_ROOT;
+    long treeStyle = wxTR_HAS_BUTTONS;
+
+    // On Windows CE, if you hide the root, you get a crash when
+    // attempting to access data for children of the root item.
+#ifndef __WXWINCE__
+    treeStyle |= wxTR_HIDE_ROOT;
+#endif
 
 #ifdef __WXGTK20__
     treeStyle |= wxTR_NO_LINES;
@@ -532,6 +559,13 @@ bool wxGenericDirCtrl::Create(wxWindow *parent,
     m_defaultPath = dir;
     m_filter = filter;
 
+    if (m_filter.empty())
+#ifdef __UNIX__
+        m_filter = wxT("*");
+#else
+        m_filter = wxT("*.*");
+#endif
+
     SetFilterIndex(defaultFilter);
 
     if (m_filterListCtrl)
@@ -552,22 +586,8 @@ bool wxGenericDirCtrl::Create(wxWindow *parent,
 
     m_rootId = m_treeCtrl->AddRoot( rootName, 3, -1, rootData);
     m_treeCtrl->SetItemHasChildren(m_rootId);
-    ExpandDir(m_rootId); // automatically expand first level
 
-    // Expand and select the default path
-    if (!m_defaultPath.empty())
-    {
-        ExpandPath(m_defaultPath);
-    }
-#ifdef __UNIX__
-    else
-    {
-        // On Unix, there's only one node under the (hidden) root node. It
-        // represents the / path, so the user would always have to expand it;
-        // let's do it ourselves
-        ExpandPath( wxT("/") );
-    }
-#endif
+    ExpandRoot();
 
     SetBestSize(size);
     DoResize();
@@ -732,6 +752,8 @@ void wxGenericDirCtrl::CollapseDir(wxTreeItemId parentId)
          * handle disappearing children! */
         child = m_treeCtrl->GetFirstChild(parentId, cookie);
     }
+    if (parentId != m_treeCtrl->GetRootItem())
+        m_treeCtrl->Collapse(parentId);
 }
 
 void wxGenericDirCtrl::ExpandDir(wxTreeItemId parentId)
@@ -755,7 +777,7 @@ void wxGenericDirCtrl::ExpandDir(wxTreeItemId parentId)
 
     wxString dirName(data->m_path);
 
-#if defined(__WINDOWS__) || defined(__DOS__) || defined(__OS2__)
+#if (defined(__WINDOWS__) && !defined(__WXWINCE__)) || defined(__DOS__) || defined(__OS2__)
     // Check if this is a root directory and if so,
     // whether the drive is avaiable.
     if (!wxIsDriveAvailable(dirName))
@@ -819,7 +841,7 @@ void wxGenericDirCtrl::ExpandDir(wxTreeItemId parentId)
             while(strTok.HasMoreTokens())
             {
                 curFilter = strTok.GetNextToken();
-                if (d.GetFirst(& eachFilename, m_currentFilterStr, style))
+                if (d.GetFirst(& eachFilename, curFilter, style))
                 {
                     do
                     {
@@ -886,7 +908,18 @@ void wxGenericDirCtrl::ExpandDir(wxTreeItemId parentId)
 void wxGenericDirCtrl::ReCreateTree()
 {
     CollapseDir(m_treeCtrl->GetRootItem());
-    ExpandDir(m_treeCtrl->GetRootItem());
+    ExpandRoot();
+}
+
+void wxGenericDirCtrl::CollapseTree()
+{
+    wxTreeItemIdValue cookie;
+    wxTreeItemId child = m_treeCtrl->GetFirstChild(m_rootId, cookie);
+    while (child.IsOk())
+    {
+        CollapseDir(child);
+        child = m_treeCtrl->GetNextChild(m_rootId, cookie);
+    }
 }
 
 // Find the child that matches the first part of 'path'.
@@ -1089,7 +1122,11 @@ void wxGenericDirCtrl::SetFilterIndex(int n)
     if (ExtractWildcard(m_filter, n, f, d))
         m_currentFilterStr = f;
     else
+#ifdef __UNIX__
+        m_currentFilterStr = wxT("*");
+#else
         m_currentFilterStr = wxT("*.*");
+#endif
 }
 
 void wxGenericDirCtrl::SetFilter(const wxString& filter)
@@ -1100,7 +1137,11 @@ void wxGenericDirCtrl::SetFilter(const wxString& filter)
     if (ExtractWildcard(m_filter, m_currentFilter, f, d))
         m_currentFilterStr = f;
     else
+#ifdef __UNIX__
+        m_currentFilterStr = wxT("*");
+#else
         m_currentFilterStr = wxT("*.*");
+#endif
 }
 
 // Extract description and actual filter from overall filter string