Crash fix under VC++

[wxWidgets.git] / src / gtk1 / filedlg.cpp

diff --git a/src/gtk1/filedlg.cpp b/src/gtk1/filedlg.cpp
index 74798f65f22f04ab0b8f3125d35dda329cbb485d..adb8f61207321d7791d2a68b1db9999a25af7c53 100644 (file)
--- a/src/gtk1/filedlg.cpp
+++ b/src/gtk1/filedlg.cpp
@@ -1,146 +1,400 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        filedlg.cpp
-// Purpose:
-// Author:      Robert Roebling
-// Created:     01/02/97
-// Id:
-// Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
-// Licence:    wxWindows licence
+// Name:        gtk/filedlg.cpp
+// Purpose:     native implementation of wxFileDialog
+// Author:      Robert Roebling, Zbigniew Zagorski
+// Id:          $Id$
+// Copyright:   (c) 1998 Robert Roebling, 2004 Zbigniew Zagorski
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)

 #pragma implementation "filedlg.h"
 #endif
 
 #pragma implementation "filedlg.h"
 #endif
 

+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#if wxUSE_FILEDLG && defined(__WXGTK24__)
+

 #include "wx/filedlg.h"
 #include "wx/utils.h"
 #include "wx/intl.h"
 #include "wx/filedlg.h"
 #include "wx/utils.h"
 #include "wx/intl.h"

+#include "wx/filename.h"
+#include "wx/msgdlg.h"
+
+#include <gtk/gtk.h>
+#include "wx/gtk/private.h"

 
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------

-// wxFileDialog
+// idle system
+//-----------------------------------------------------------------------------
+
+extern void wxapp_install_idle_handler();
+extern bool g_isIdle;
+
+//-----------------------------------------------------------------------------
+// "clicked" for OK-button
+//-----------------------------------------------------------------------------
+
+static void gtk_filedialog_ok_callback(GtkWidget *widget, wxFileDialog *dialog)
+{
+    int style = dialog->GetStyle();
+    gchar* text = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(widget));
+    wxString filename(wxGTK_CONV_BACK(text));
+
+    if ((style & wxSAVE) && (style & wxOVERWRITE_PROMPT))
+    {
+        if (wxFileExists(filename))
+        {
+            wxString msg;
+            msg.Printf(
+             _("File '%s' already exists, do you really want to overwrite it?"),
+             filename.c_str());
+
+            wxMessageDialog dlg(dialog, msg, _("Confirm"),
+                               wxYES_NO | wxICON_QUESTION);
+            if (dlg.ShowModal() != wxID_YES)
+                return;
+        }
+    }
+    else if ((style & wxOPEN) && ( style & wxFILE_MUST_EXIST))
+    {
+        if (!wxFileExists( filename ))
+        {
+            wxMessageDialog dlg(dialog,
+                                _("Please choose an existing file."),
+                                _("Error"), wxOK | wxICON_ERROR);
+            dlg.ShowModal();
+
+            return;
+        }
+    }
+
+    // change to the directory where the user went if asked
+    if (style & wxCHANGE_DIR)
+    {
+        wxString cwd;
+        wxSplitPath(filename, &cwd, NULL, NULL);
+
+        if (cwd != wxGetCwd())
+        {
+            wxSetWorkingDirectory(cwd);
+        }
+    }
+
+    dialog->SetPath(filename);
+    dialog->UpdateFromDialog();
+    
+    wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_OK);
+    event.SetEventObject(dialog);
+    dialog->GetEventHandler()->ProcessEvent(event);
+}
+
+//-----------------------------------------------------------------------------
+// "clicked" for Cancel-button

 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 

-void gtk_filedialog_ok_callback( GtkWidget *WXUNUSED(widget), gpointer data )
+static void gtk_filedialog_cancel_callback(GtkWidget *WXUNUSED(w),
+                                           wxFileDialog *dialog)

 {
 {

-  wxFileDialog *dialog = (wxFileDialog*)data;
-  wxCommandEvent event(wxEVT_NULL);
-  dialog->OnOk( event );
-};
+    wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
+    event.SetEventObject(dialog);
+    dialog->GetEventHandler()->ProcessEvent(event);
+}

 
 

-void gtk_filedialog_cancel_callback( GtkWidget *WXUNUSED(widget), gpointer data )
+static void gtk_filedialog_response_callback(GtkWidget *w,
+                                             int response,
+                                             wxFileDialog *dialog)

 {
 {

-  wxFileDialog *dialog = (wxFileDialog*)data;
-  wxCommandEvent event(wxEVT_NULL);
-  dialog->OnCancel( event );
-};
+    wxapp_install_idle_handler();
+    
+    if (response == GTK_RESPONSE_ACCEPT)
+        gtk_filedialog_ok_callback(w, dialog);
+    else if (response == GTK_RESPONSE_CANCEL)
+        gtk_filedialog_cancel_callback(w, dialog);
+    else // "delete"
+    {
+        gtk_filedialog_cancel_callback(w, dialog);
+        dialog->m_destroyed_by_delete = TRUE;
+    }
+}
+
+//-----------------------------------------------------------------------------
+// wxFileDialog
+//-----------------------------------------------------------------------------

 
 

-IMPLEMENT_DYNAMIC_CLASS(wxFileDialog,wxDialog)
+IMPLEMENT_DYNAMIC_CLASS(wxFileDialog,wxFileDialogBase)

 
 wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
 
 wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,

-        const wxString& defaultDir, const wxString& defaultFileName, 
-       const wxString& wildCard,
-        long style, const wxPoint& pos )
-{
-  m_needParent = FALSE;
-  
-  PreCreation( parent, -1, pos, wxDefaultSize, style, "filedialog" );
-  m_message = message;
-  m_path = "";
-  m_fileName = defaultFileName;
-  m_dir = defaultDir;
-  m_wildCard = wildCard;
-  m_filterIndex = 1;
-  
-  m_widget = gtk_file_selection_new( "File selection" );
-  
-  GtkFileSelection *sel = GTK_FILE_SELECTION(m_widget);
-  
-  gtk_signal_connect( GTK_OBJECT(sel->ok_button), "clicked", 
-    GTK_SIGNAL_FUNC(gtk_filedialog_ok_callback), (gpointer*)this );
-
-  gtk_signal_connect( GTK_OBJECT(sel->cancel_button), "clicked", 
-    GTK_SIGNAL_FUNC(gtk_filedialog_cancel_callback), (gpointer*)this );
-};
-
-int wxFileDialog::ShowModal(void)
+                           const wxString& defaultDir,
+                           const wxString& defaultFileName,
+                           const wxString& wildCard,
+                           long style, const wxPoint& pos)
+    : wxFileDialogBase(parent, message, defaultDir, defaultFileName,
+                       wildCard, style, pos)

 {
 {

-  int ret = wxDialog::ShowModal();
-  if (ret == wxID_OK)
-  {
-    m_fileName = gtk_file_selection_get_filename( GTK_FILE_SELECTION(m_widget) );
-    m_path = gtk_file_selection_get_filename( GTK_FILE_SELECTION(m_widget) );
-  };
-  return ret;
-};
+    m_needParent = FALSE;
+    m_destroyed_by_delete = FALSE;
+
+    if (!PreCreation(parent, pos, wxDefaultSize) ||
+        !CreateBase(parent, wxID_ANY, pos, wxDefaultSize, style,
+                    wxDefaultValidator, wxT("filedialog")))
+    {
+        wxFAIL_MSG( wxT("wxFileDialog creation failed") );
+        return;
+    }
+
+    bool multiple = (style & wxMULTIPLE) == wxMULTIPLE;
+    GtkFileChooserAction gtk_action;
+    GtkWindow* gtk_parent = NULL;
+    if (parent)
+        gtk_parent = GTK_WINDOW(parent->m_widget);
+    
+    gchar* ok_btn_stock;
+    if ((style & wxSAVE) == wxSAVE)
+    {
+        gtk_action = GTK_FILE_CHOOSER_ACTION_SAVE;
+        ok_btn_stock = GTK_STOCK_SAVE;
+    }
+    else
+    {
+        gtk_action = GTK_FILE_CHOOSER_ACTION_OPEN;
+        ok_btn_stock = GTK_STOCK_OPEN;
+    }
+    m_widget = gtk_file_chooser_dialog_new(
+                       wxGTK_CONV(m_message),
+                       gtk_parent,
+                       gtk_action,
+                       GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
+                       ok_btn_stock, GTK_RESPONSE_ACCEPT,
+                       NULL);
+
+    gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(m_widget), multiple);
+        
+    gtk_signal_connect(GTK_OBJECT(m_widget),
+                             "response", 
+                             GTK_SIGNAL_FUNC(gtk_filedialog_response_callback),
+                             (gpointer*)this);

     
     

+    m_path = m_dir;
+    if (!m_path.empty() && m_path.Last() != wxT('/'))
+        m_path += wxT('/');
+    m_path += m_fileName;
+    SetPath(m_path);
+    
+    SetWildcard(wildCard);
+    SetFilterIndex(0);
+}
+
+wxFileDialog::~wxFileDialog()
+{
+    if (m_destroyed_by_delete)
+        m_widget = NULL;
+}
+
+void wxFileDialog::GetFilenames(wxArrayString& files) const 
+{
+    GetPaths(files);
+    for (size_t n = 0; n < files.GetCount(); n++ )
+    {
+        wxString name,ext;
+        wxSplitPath(files[n], NULL, &name, &ext);
+        if (!ext.IsEmpty())
+        {
+            name += wxT(".");
+            name += ext;
+        }
+        files[n] = name;
+    }
+}
+
+void wxFileDialog::GetPaths(wxArrayString& paths) const 
+{
+    paths.Empty(); 
+    if (GetWindowStyle() & wxMULTIPLE)
+    {
+        GSList *gpathsi = 
+            gtk_file_chooser_get_filenames(GTK_FILE_CHOOSER(m_widget));
+        GSList *gpaths = gpathsi;
+        while (gpathsi)
+        {
+            wxString file = wxGTK_CONV_BACK((gchar*) gpathsi->data);
+            paths.Add(file);
+            g_free(gpathsi->data);
+            gpathsi = gpathsi->next;
+        }
+        if (gpaths) 
+            g_slist_free(gpaths);
+    }
+    else
+    {
+        paths.Add(m_fileName);
+    }
+}

 
 

-char *wxFileSelector(const char *title,
-                     const char *defaultDir, const char *defaultFileName,
-                     const char *defaultExtension, const char *filter, int flags,
-                     wxWindow *parent, int x, int y)
+void wxFileDialog::SetMessage(const wxString& message)

 {
 {

-       wxString filter2("");
-       if ( defaultExtension && !filter )
-               filter2 = wxString("*.") + wxString(defaultExtension) ;
-       else if ( filter )
-               filter2 = filter;
-
-       wxString defaultDirString;
-       if (defaultDir)
-               defaultDirString = defaultDir;
-       else
-               defaultDirString = "";
-
-       wxString defaultFilenameString;
-       if (defaultFileName)
-               defaultFilenameString = defaultFileName;
-       else
-               defaultFilenameString = "";
-
-       wxFileDialog fileDialog(parent, title, defaultDirString, defaultFilenameString, 
-         filter2, flags, wxPoint(x, y));
-
-       if ( fileDialog.ShowModal() == wxID_OK )
-       {
-               strcpy(wxBuffer, (const char *)fileDialog.GetPath());
-               return wxBuffer;
-       }
-       else
-               return NULL;
-};
-
-char* wxLoadFileSelector(const char *what, const char *extension, const char *default_name, 
-         wxWindow *parent )
+    m_message = message;
+    SetTitle(message);
+}
+
+void wxFileDialog::SetPath(const wxString& path)

 {
 {

-  char *ext = (char *)extension;
-  
-  char prompt[50];
-  wxString str = _("Load %s file");
-  sprintf(prompt, str, what);
+    if (path.empty()) return;

 
 

-  if (*ext == '.') ext++;
-  char wild[60];
-  sprintf(wild, "*.%s", ext);
+    wxFileName fn(path);
+    m_path = fn.GetFullPath();
+    m_dir = fn.GetPath();
+    m_fileName = fn.GetFullName();
+    UpdateDialog();
+}

 
 

-  return wxFileSelector (prompt, NULL, default_name, ext, wild, 0, parent);
-};
+void wxFileDialog::SetDirectory(const wxString& dir)
+{
+    if (wxDirExists(dir))
+    {
+        m_dir = dir;
+        m_path = wxFileName(m_dir, m_fileName).GetFullPath();
+        UpdateDialog();
+    }
+}

 
 

-char* wxSaveFileSelector(const char *what, const char *extension, const char *default_name, 
-         wxWindow *parent )
+void wxFileDialog::SetFilename(const wxString& name)

 {
 {

-  char *ext = (char *)extension;
-  
-  char prompt[50];
-  wxString str = _("Save %s file");
-  sprintf(prompt, str, what);
+    m_fileName = name;
+    m_path = wxFileName(m_dir, m_fileName).GetFullPath();
+    UpdateDialog();
+}

 
 

-  if (*ext == '.') ext++;
-  char wild[60];
-  sprintf(wild, "*.%s", ext);
+void wxFileDialog::UpdateDialog()
+{
+    // set currently selected directory to match the path:
+    if (!m_dir.empty() && wxDirExists(m_dir))
+    {
+        // NB: This is important -- if we set directory only and not the path,
+        //     then dialog will still remember old path set using previous
+        //     call to gtk_chooser_set_filename. If the previous directory
+        //     was a subdirectory of the directory we want to select now,
+        //     the dialog would still contain directory selector controls
+        //     for the subdirectory (with the parent directory selected),
+        //     instead of showing only the parent directory as expected.
+        //     This way, we force GtkFileChooser to really change the
+        //     directory. Finally, it doesn't have to be done if filename
+        //     is not empty because of the code that sets the filename below.
+        if (m_fileName.empty())
+            gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(m_widget),
+                                          wxGTK_CONV(m_dir));
+        
+        gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(m_widget),
+                                            wxGTK_CONV(m_dir));
+    }
+    
+    // if the user set only the directory (e.g. by calling SetDirectory)
+    // and not the default filename, then we don't want to set the filename:
+    if (!m_fileName.empty())
+    {
+        gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(m_widget),
+                                      wxGTK_CONV(m_path));
+                                          
+        // pre-fill the filename when saving, too (there's no text entry
+        // control when opening a file, so it doesn't make sense to
+        // do this when opening files):
+        if (GetWindowStyle() & wxSAVE)
+        {
+            gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_widget),
+                                              wxGTK_CONV(m_fileName));
+        }
+    }
+}

 
 

-  return wxFileSelector (prompt, NULL, default_name, ext, wild, 0, parent);
-};
+void wxFileDialog::SetWildcard(const wxString& wildCard)
+{
+    m_wildCard = wildCard;
+    
+    GtkFileChooser* chooser = GTK_FILE_CHOOSER(m_widget);
+    
+    // empty current filter list:
+    GSList* ifilters = gtk_file_chooser_list_filters(chooser);
+    GSList* filters = ifilters;
+    while (ifilters)
+    {
+        gtk_file_chooser_remove_filter(chooser,GTK_FILE_FILTER(ifilters->data));
+        ifilters = ifilters->next;
+    }
+    g_slist_free(filters);
+    
+    // parse filters
+    wxArrayString wildDescriptions, wildFilters;
+    if (!wxParseCommonDialogsFilter(m_wildCard, wildDescriptions, wildFilters))
+    {
+        wxFAIL_MSG( wxT("Wrong file type description") );
+    }
+    else
+    {
+        // add parsed to GtkChooser
+        for (size_t n = 0; n < wildFilters.GetCount(); n++)
+        {
+            GtkFileFilter* filter = gtk_file_filter_new();
+            gtk_file_filter_set_name(filter,wxGTK_CONV(wildDescriptions[n]));
+            wxString after = wildFilters[n];
+            do
+            {
+                wxString ext = after.BeforeFirst(wxT(';'));
+                gtk_file_filter_add_pattern(filter,wxGTK_CONV(ext));
+                if (after.Find(wxT(';')) == wxNOT_FOUND)
+                    break;
+                after = after.AfterLast(wxT(';'));
+            }
+            while (!after.empty());
+            
+            gtk_file_chooser_add_filter(chooser, filter);
+        }
+    }
+}

 
 

+void wxFileDialog::SetFilterIndex(int filterIndex)
+{
+    m_filterIndex = filterIndex;

 
 

+    GtkFileChooser *chooser = GTK_FILE_CHOOSER(m_widget);
+    GSList *fnode = gtk_file_chooser_list_filters(chooser);
+    GSList *filters = fnode;
+    int i = 0;
+    while (fnode)
+    {
+        if (i == filterIndex)
+        {
+            gtk_file_chooser_set_filter(chooser, GTK_FILE_FILTER(fnode->data));
+            m_filterIndex = i;
+            break;
+        }
+        i++;
+        fnode = fnode->next;
+    }
+    g_slist_free(filters);
+}

 
 

+void wxFileDialog::UpdateFromDialog()
+{
+    // update filterIndex
+    GSList *fnode = gtk_file_chooser_list_filters(GTK_FILE_CHOOSER(m_widget));
+    GSList *filters = fnode;
+    GtkFileFilter *current =
+        gtk_file_chooser_get_filter(GTK_FILE_CHOOSER(m_widget));
+    
+    int i = 0;
+    m_filterIndex = 0;
+    while (fnode)
+    {
+        if (fnode->data == (gpointer)current)
+        {
+            m_filterIndex = i;
+            break;
+        }
+        i++;
+        fnode = fnode->next;
+    }
+    g_slist_free(filters);
+}

 
 

+#endif // wxUSE_FILEDLG && defined(__WXGTK24__)