From 62417f1a061918e9cff30dfd90b9e565bd7821b7 Mon Sep 17 00:00:00 2001
From: Marc Jeanmougin <marcjeanmougin@free.fr>
Date: Sun, 7 Jan 2018 12:23:59 +0000
Subject: Improve FileSave dialog

---
 src/ui/dialog/filedialog.h             |  2 +-
 src/ui/dialog/filedialogimpl-gtkmm.cpp | 22 +++++++++++++++++++++-
 src/ui/dialog/filedialogimpl-gtkmm.h   |  2 ++
 src/ui/dialog/filedialogimpl-win32.cpp |  4 ++--
 4 files changed, 26 insertions(+), 4 deletions(-)

(limited to 'src')

diff --git a/src/ui/dialog/filedialog.h b/src/ui/dialog/filedialog.h
index 8ee63e654..071824ab9 100644
--- a/src/ui/dialog/filedialog.h
+++ b/src/ui/dialog/filedialog.h
@@ -227,7 +227,7 @@ protected:
     /**
      * List of known file extensions.
      */
-    std::set<Glib::ustring> knownExtensions;
+    std::map<Glib::ustring, Inkscape::Extension::Output*> knownExtensions;
 
 
     void appendExtension(Glib::ustring& path, Inkscape::Extension::Output* outputExtension);
diff --git a/src/ui/dialog/filedialogimpl-gtkmm.cpp b/src/ui/dialog/filedialogimpl-gtkmm.cpp
index 86ad8649d..c8c508ee3 100644
--- a/src/ui/dialog/filedialogimpl-gtkmm.cpp
+++ b/src/ui/dialog/filedialogimpl-gtkmm.cpp
@@ -948,6 +948,7 @@ FileSaveDialogImplGtk::FileSaveDialogImplGtk(Gtk::Window &parentWindow, const Gl
                         (save_method == Inkscape::Extension::FILE_SAVE_METHOD_SAVE_COPY) ? "/dialogs/save_copy"
                                                                                          : "/dialogs/save_as")
     , save_method(save_method)
+    , fromCB(false)
 {
     FileSaveDialog::myDocTitle = docTitle;
 
@@ -1014,6 +1015,8 @@ FileSaveDialogImplGtk::FileSaveDialogImplGtk(Gtk::Window &parentWindow, const Gl
         fileNameEntry->signal_activate().connect(
             sigc::mem_fun(*this, &FileSaveDialogImplGtk::fileNameEntryChangedCallback));
     }
+    signal_selection_changed().connect(
+        sigc::mem_fun(*this, &FileSaveDialogImplGtk::fileNameChanged));
 
     // Let's do more customization
     std::vector<Gtk::Expander *> expanders;
@@ -1102,10 +1105,27 @@ void FileSaveDialogImplGtk::fileTypeChangedCallback()
     auto filter = Gtk::FileFilter::create();
     filter->add_pattern(type.pattern);
     set_filter(filter);
+    
+    if (fromCB) {
+        //do not update if called from a name change
+        fromCB = false; 
+        return;
+    }
 
     updateNameAndExtension();
 }
 
+void FileSaveDialogImplGtk::fileNameChanged() {
+    Glib::ustring name = get_filename();
+    Glib::ustring::size_type pos = name.rfind('.');
+    if ( pos == Glib::ustring::npos ) return;
+    Glib::ustring ext = name.substr( pos ).casefold();
+    if (extension && Glib::ustring(dynamic_cast<Inkscape::Extension::Output *>(extension)->get_extension()).casefold() == ext ) return;
+    if (knownExtensions.find(ext) == knownExtensions.end()) return;
+    fromCB = true;
+    fileTypeComboBox.set_active_text(_(knownExtensions[ext]->get_filetypename()));
+}
+
 void FileSaveDialogImplGtk::addFileType(Glib::ustring name, Glib::ustring pattern)
 {
     //#Let user choose
@@ -1139,7 +1159,7 @@ void FileSaveDialogImplGtk::createFileTypeMenu()
         type.name = (_(omod->get_filetypename()));
         type.pattern = "*";
         Glib::ustring extension = omod->get_extension();
-        knownExtensions.insert(extension.casefold());
+        knownExtensions.insert(std::pair<Glib::ustring, Inkscape::Extension::Output*>(extension.casefold(), omod));
         fileDialogExtensionToPattern(type.pattern, extension);
         type.extension = omod;
         fileTypeComboBox.append(type.name);
diff --git a/src/ui/dialog/filedialogimpl-gtkmm.h b/src/ui/dialog/filedialogimpl-gtkmm.h
index 82ca75065..6b1f92d15 100644
--- a/src/ui/dialog/filedialogimpl-gtkmm.h
+++ b/src/ui/dialog/filedialogimpl-gtkmm.h
@@ -347,6 +347,8 @@ private:
      * Callback for user input into fileNameEntry
      */
     void fileNameEntryChangedCallback();
+    void fileNameChanged();
+    bool fromCB;
 };
 
 
diff --git a/src/ui/dialog/filedialogimpl-win32.cpp b/src/ui/dialog/filedialogimpl-win32.cpp
index 7aca8e242..8cdf31db6 100644
--- a/src/ui/dialog/filedialogimpl-win32.cpp
+++ b/src/ui/dialog/filedialogimpl-win32.cpp
@@ -1636,7 +1636,7 @@ void FileSaveDialogImplWin32::createFilterMenu()
         const gchar *filter_extension = omod->get_extension();
         filter.filter = g_utf8_to_utf16(
             filter_extension, -1, NULL, &filter.filter_length, NULL);
-        knownExtensions.insert( Glib::ustring(filter_extension).casefold() );
+        knownExtensions.insert(std::pair<Glib::ustring, Inkscape::Extension::Output*>(Glib::ustring(filter_extension).icasefold(), omod));
 
         // Type
         filter.name = g_utf8_to_utf16(
@@ -1709,7 +1709,7 @@ void FileSaveDialogImplWin32::addFileType(Glib::ustring name, Glib::ustring patt
     
     filter_length = all_exe_files.name_length + all_exe_files.filter_length + 3; // Add 3 for two \0s and a *
 
-    knownExtensions.insert( Glib::ustring(all_exe_files_filter).casefold() );
+    knownExtensions.insert(std::pair<Glib::ustring, Inkscape::Extension::Output*>(Glib::ustring(all_exe_files_filter).casefold(), NULL));
 
     int extension_index = 0;
     _extension_map = new Inkscape::Extension::Extension*[filter_count];
-- 
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