X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7d4194184e83bbccf1a88325cca59d8d0d2faef1..f2616db56739e4962f683f59ac9e207756efe23c:/src/msw/dirdlg.cpp

diff --git a/src/msw/dirdlg.cpp b/src/msw/dirdlg.cpp
index 3c20ff1819..3f539ad57f 100644
--- a/src/msw/dirdlg.cpp
+++ b/src/msw/dirdlg.cpp
@@ -6,126 +6,191 @@
 // Created:     01/02/97
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart and Markus Holzem
-// Licence:   	wxWindows licence
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
 #ifdef __GNUG__
-#pragma implementation "dirdlg.h"
+    #pragma implementation "dirdlg.h"
 #endif
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-#pragma hdrstop
+    #pragma hdrstop
 #endif
 
+#if wxUSE_DIRDLG
+
+#if defined(__WIN95__) && !defined(__GNUWIN32_OLD__)
+
 #ifndef WX_PRECOMP
-#include <stdio.h>
-#include "wx/defs.h"
-#include "wx/utils.h"
-#include "wx/dialog.h"
-#include "wx/dirdlg.h"
+    #include "wx/utils.h"
+    #include "wx/dialog.h"
+    #include "wx/dirdlg.h"
+    #include "wx/log.h"
 #endif
 
-#if defined(__WIN95__) && !defined(__GNUWIN32__)
+#include "wx/msw/private.h"
+
 #include "shlobj.h" // Win95 shell
-#endif
 
-#include "wx/msw/private.h"
-#include "wx/cmndata.h"
+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------
 
-#include <math.h>
-#include <stdlib.h>
-#include <string.h>
+#ifndef MAX_PATH
+    #define MAX_PATH 4096      // be generous
+#endif
 
-#define wxDIALOG_DEFAULT_X 300
-#define wxDIALOG_DEFAULT_Y 300
+// ----------------------------------------------------------------------------
+// wxWindows macros
+// ----------------------------------------------------------------------------
 
-#if !USE_SHARED_LIBRARY
 IMPLEMENT_CLASS(wxDirDialog, wxDialog)
-#endif
 
-wxDirDialog::wxDirDialog(wxWindow *parent, const wxString& message,
-//		const wxString& caption,
-        const wxString& defaultPath,
-        long style, const wxPoint& pos)
+// ----------------------------------------------------------------------------
+// private functions prototypes
+// ----------------------------------------------------------------------------
+
+// free the parameter
+static void ItemListFree(LPITEMIDLIST pidl);
+
+// the callback proc for the dir dlg
+static int CALLBACK BrowseCallbackProc(HWND hwnd, UINT uMsg, LPARAM lp,
+                                       LPARAM pData);
+
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// wxDirDialog
+// ----------------------------------------------------------------------------
+
+wxDirDialog::wxDirDialog(wxWindow *parent,
+                         const wxString& message,
+                         const wxString& defaultPath,
+                         long WXUNUSED(style),
+                         const wxPoint& WXUNUSED(pos))
 {
     m_message = message;
-//    m_caption = caption;
-    m_dialogStyle = style;
     m_parent = parent;
-	m_path = defaultPath;
+    m_path = defaultPath;
+    m_path.Replace(_T("/"), _T("\\")); // SHBrowseForFolder doesn't like '/'s
 }
 
-int wxDirDialog::ShowModal(void)
+int wxDirDialog::ShowModal()
 {
-    // Unfortunately Gnu-Win32 doesn't yet have COM support
-#if defined(__WIN95__) && !defined(__GNUWIN32__)
-  HWND hWnd = 0;
-  if (m_parent) hWnd = (HWND) m_parent->GetHWND();
-
     BROWSEINFO bi;
-    LPTSTR lpBuffer;
-//    LPITEMIDLIST pidlPrograms;  // PIDL for Programs folder 
-    LPITEMIDLIST pidlBrowse;    // PIDL selected by user 
-    LPMALLOC pMalloc = NULL;
-
-    HRESULT result = ::SHGetMalloc(&pMalloc);
-
-    if (result != NOERROR)
-      return wxID_CANCEL;
-    
-    // Allocate a buffer to receive browse information. 
-    if ((lpBuffer = (LPSTR) pMalloc->Alloc(MAX_PATH)) == NULL) 
+    bi.hwndOwner      = m_parent ? GetHwndOf(m_parent) : NULL;
+    bi.pidlRoot       = NULL;
+    bi.pszDisplayName = NULL;
+    bi.lpszTitle      = m_message.c_str();
+    bi.ulFlags        = BIF_RETURNONLYFSDIRS | BIF_STATUSTEXT;
+    bi.lpfn           = BrowseCallbackProc;
+    bi.lParam         = (LPARAM)m_path.c_str();    // param for the callback
+
+    LPITEMIDLIST pidl = SHBrowseForFolder(&bi);
+
+    if ( bi.pidlRoot )
+    {
+        ItemListFree((LPITEMIDLIST)bi.pidlRoot);
+    }
+
+    if ( !pidl )
     {
-        pMalloc->Release();
+        // Cancel button pressed
         return wxID_CANCEL;
     }
 
-/*
-    // Get the PIDL for the Programs folder. 
-    if (!SUCCEEDED(SHGetSpecialFolderLocation( 
-            parent->GetSafeHwnd(), CSIDL_PROGRAMS, &pidlPrograms))) { 
-        pMalloc->Free(lpBuffer);
-        pMalloc->Release();
+    BOOL ok = SHGetPathFromIDList(pidl, m_path.GetWriteBuf(MAX_PATH));
+    m_path.UngetWriteBuf();
+
+    ItemListFree(pidl);
+
+    if ( !ok )
+    {
+        wxLogLastError(wxT("SHGetPathFromIDList"));
+
         return wxID_CANCEL;
-    } 
-*/
- 
-    // Fill in the BROWSEINFO structure. 
-    bi.hwndOwner = hWnd;
-    bi.pidlRoot = NULL; // pidlPrograms; 
-    bi.pszDisplayName = lpBuffer; 
-    bi.lpszTitle = m_message; // BC++ 4.52 says LPSTR, not LPTSTR?
-    bi.ulFlags = 0; 
-    bi.lpfn = NULL; 
-    bi.lParam = 0; 
- 
-    // Browse for a folder and return its PIDL. 
-    pidlBrowse = SHBrowseForFolder(&bi); 
-
-    int id = wxID_OK;
-    if (pidlBrowse != NULL) {
- 
-        // Show the display name, title, and file system path. 
-        if (SHGetPathFromIDList(pidlBrowse, lpBuffer))
-          m_path = lpBuffer;
-          
-        // Free the PIDL returned by SHBrowseForFolder. 
-        pMalloc->Free(pidlBrowse);
     }
-	else
-		id = wxID_CANCEL;
- 
-    // Clean up. 
-//    pMalloc->Free(pidlPrograms); 
-    pMalloc->Free(lpBuffer); 
-    pMalloc->Release();
-    
-    return id;
-#else
-	return wxID_CANCEL;
-#endif
+
+    return wxID_OK;
+}
+
+// ----------------------------------------------------------------------------
+// private functions
+// ----------------------------------------------------------------------------
+
+static int CALLBACK
+BrowseCallbackProc(HWND hwnd, UINT uMsg, LPARAM lp, LPARAM pData)
+{
+    switch(uMsg)
+    {
+        case BFFM_INITIALIZED:
+            // sent immediately after initialisation and so we may set the
+            // initial selection here
+            //
+            // wParam = TRUE => lParam is a string and not a PIDL
+            SendMessage(hwnd, BFFM_SETSELECTION, TRUE, pData);
+            break;
+
+        case BFFM_SELCHANGED:
+            {
+                // Set the status window to the currently selected path.
+                TCHAR szDir[MAX_PATH];
+                if ( SHGetPathFromIDList((LPITEMIDLIST)lp, szDir) )
+                {
+                    wxString strDir(szDir);
+                    int maxChars = 40; // Have to truncate string else it displays incorrectly
+                    if (strDir.Len() > (size_t) (maxChars - 3))
+                    {
+                        strDir = strDir.Right(maxChars - 3);
+                        strDir = wxString(wxT("...")) + strDir;
+                    }
+                    SendMessage(hwnd, BFFM_SETSTATUSTEXT, 0, (LPARAM) (const wxChar*) strDir);
+                }
+            }
+            break;
+
+        //case BFFM_VALIDATEFAILED: -- might be used to provide custom message
+        //                             if the user types in invalid dir name
+    }
+
+    return 0;
 }
 
+
+static void ItemListFree(LPITEMIDLIST pidl)
+{
+    if ( pidl )
+    {
+        LPMALLOC pMalloc;
+        SHGetMalloc(&pMalloc);
+        if ( pMalloc )
+        {
+            pMalloc->Free(pidl);
+            pMalloc->Release();
+        }
+        else
+        {
+            wxLogLastError(wxT("SHGetMalloc"));
+        }
+    }
+}
+
+#else
+    #include "../generic/dirdlgg.cpp"
+#endif // compiler/platform on which the code here compiles
+
+#endif // wxUSE_DIRDLG