Pipette and "On Preview Widgets" branch. See issue 227

The pipette part is already working quite nice but need to be finished. The widgets part needs more work...
2014-01-21 23:37:36 +01:00
commit 8b2eac9a3d
1631 changed files with 379231 additions and 0 deletions
--- a/rtgui/exifpanel.cc
+++ b/rtgui/exifpanel.cc
@@ -0,0 +1,558 @@
+/*
+ *  This file is part of RawTherapee.
+ *
+ *  Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
+ *
+ *  RawTherapee is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ * 
+ *  RawTherapee is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "exifpanel.h"
+#include "../rtengine/safegtk.h"
+#include "guiutils.h"
+#include "rtimage.h"
+
+using namespace rtengine;
+using namespace rtengine::procparams;
+using namespace rtexif;
+
+ExifPanel::ExifPanel () : idata(NULL) {
+
+   recursiveOp = true;
+
+   exifTree = Gtk::manage(new Gtk::TreeView());
+   scrolledWindow = Gtk::manage(new Gtk::ScrolledWindow());
+
+   exifTree->set_headers_visible(false);
+   exifTree->set_rules_hint(false);
+   exifTree->set_reorderable(false);
+   exifTree->set_enable_search(true);
+   exifTree->get_selection()->set_mode (Gtk::SELECTION_MULTIPLE);
+   scrolledWindow->set_border_width(2);
+   scrolledWindow->set_shadow_type(Gtk::SHADOW_NONE);
+   scrolledWindow->set_policy(Gtk::POLICY_ALWAYS, Gtk::POLICY_ALWAYS);
+   scrolledWindow->property_window_placement().set_value(Gtk::CORNER_TOP_LEFT);
+   scrolledWindow->add(*exifTree);
+   
+   exifTreeModel = Gtk::TreeStore::create(exifColumns);
+   exifTree->set_model (exifTreeModel);
+
+   delicon = safe_create_from_file ("gtk-close.png");
+   keepicon = safe_create_from_file ("gtk-apply.png");
+   editicon = safe_create_from_file ("gtk-add.png");
+
+   Gtk::TreeView::Column *viewcol = Gtk::manage(new Gtk::TreeView::Column ("Field Name"));
+   Gtk::CellRendererPixbuf* render_pb = Gtk::manage(new Gtk::CellRendererPixbuf ());
+   Gtk::CellRendererText *render_txt = Gtk::manage(new Gtk::CellRendererText());
+   viewcol->pack_start (*render_pb, false);
+   viewcol->pack_start (*render_txt, true);
+   viewcol->add_attribute (*render_pb, "pixbuf", exifColumns.icon);
+   viewcol->add_attribute (*render_txt, "markup", exifColumns.field);
+ 
+   render_pb->property_ypad() = 0;
+   render_txt->property_ypad() = 0;
+   render_pb->property_yalign() = 0;
+   render_txt->property_yalign() = 0;
+  
+   exifTree->append_column (*viewcol); 
+   
+   Gtk::TreeView::Column *viewcolv = Gtk::manage(new Gtk::TreeView::Column ("Value"));
+   Gtk::CellRendererText *render_txtv = Gtk::manage(new Gtk::CellRendererText());
+   viewcolv->pack_start (*render_txtv, true);
+   viewcolv->add_attribute (*render_txtv, "markup", exifColumns.value);
+   
+   render_txtv->property_ypad() = 0;
+  
+   exifTree->append_column (*viewcolv); 
+  
+   pack_start (*scrolledWindow);
+   
+   Gtk::HBox* buttons1 = Gtk::manage(new Gtk::HBox ());
+   Gtk::HBox* buttons2 = Gtk::manage(new Gtk::HBox ());
+   
+   remove = Gtk::manage(new Gtk::Button (M("EXIFPANEL_REMOVE")));
+   remove->set_image (*Gtk::manage(new Gtk::Image (delicon)));
+   remove->set_tooltip_text (M("EXIFPANEL_REMOVEHINT"));
+   buttons1->pack_start (*remove);
+   
+   keep = Gtk::manage(new Gtk::Button (M("EXIFPANEL_KEEP")));
+   keep->set_image (*Gtk::manage(new Gtk::Image (keepicon)));
+   keep->set_tooltip_text (M("EXIFPANEL_KEEPHINT"));
+   buttons1->pack_start (*keep);
+
+   add = Gtk::manage(new Gtk::Button (M("EXIFPANEL_ADDEDIT")));
+   add->set_image (*Gtk::manage(new Gtk::Image (editicon)));
+   add->set_tooltip_text (M("EXIFPANEL_ADDEDITHINT"));
+   buttons1->pack_start (*add);
+
+   reset = Gtk::manage(new Gtk::Button (M("EXIFPANEL_RESET")));
+   reset->set_image (*Gtk::manage(new RTImage ("gtk-undo-ltr.png", "gtk-undo-rtl.png")));
+   reset->set_tooltip_text (M("EXIFPANEL_RESETHINT"));
+   buttons2->pack_start (*reset);
+
+   resetAll = Gtk::manage(new Gtk::Button (M("EXIFPANEL_RESETALL")));
+   resetAll->set_image (*Gtk::manage(new RTImage ("gtk-undoall-ltr.png", "gtk-undoall-rtl.png")));
+   resetAll->set_tooltip_text (M("EXIFPANEL_RESETALLHINT"));
+   buttons2->pack_start (*resetAll);
+
+   pack_end (*buttons2, Gtk::PACK_SHRINK);
+   pack_end (*buttons1, Gtk::PACK_SHRINK);
+
+   exifTree->get_selection()->signal_changed().connect(sigc::mem_fun(*this, &ExifPanel::exifSelectionChanged));
+   exifTree->signal_row_activated().connect(sigc::mem_fun(*this, &ExifPanel::row_activated));
+
+   remove->signal_clicked().connect( sigc::mem_fun(*this, &ExifPanel::removePressed) );
+   keep->signal_clicked().connect( sigc::mem_fun(*this, &ExifPanel::keepPressed) );
+   reset->signal_clicked().connect( sigc::mem_fun(*this, &ExifPanel::resetPressed) );
+   resetAll->signal_clicked().connect( sigc::mem_fun(*this, &ExifPanel::resetAllPressed) );
+   add->signal_clicked().connect( sigc::mem_fun(*this, &ExifPanel::addPressed) );
+   
+   show_all ();
+}
+
+ExifPanel::~ExifPanel () {
+}
+
+void ExifPanel::read (const ProcParams* pp, const ParamsEdited* pedited) {
+
+    disableListener ();
+
+    changeList = pp->exif;
+    setImageData (idata);
+    applyChangeList ();
+    exifSelectionChanged ();
+    
+    enableListener ();
+}
+
+void ExifPanel::write (ProcParams* pp, ParamsEdited* pedited) {
+    
+//    updateChangeList ();
+    pp->exif = changeList;
+}
+
+void ExifPanel::setDefaults (const ProcParams* defParams, const ParamsEdited* pedited) {
+
+    defChangeList = defParams->exif;
+}
+        
+void ExifPanel::setImageData (const ImageMetaData* id) {
+    
+    idata = id; 
+    exifTreeModel->clear ();
+
+    const std::vector<Tag*>& defTags = ExifManager::getDefaultTIFFTags (NULL);
+    for (size_t i=0; i<defTags.size(); i++)
+        if (defTags[i]->nameToString() == "ImageWidth" || defTags[i]->nameToString() == "ImageHeight" || defTags[i]->nameToString() == "BitsPerSample")
+            addTag (exifTreeModel->children(), defTags[i]->nameToString(), "?", AC_SYSTEM, false);
+        else
+            addTag (exifTreeModel->children(), defTags[i]->nameToString(), defTags[i]->valueToString(), AC_SYSTEM, false);
+    
+    if (id && id->getExifData ()) {
+//        id->getExifData ()->printAll ();     
+        addDirectory (id->getExifData (), exifTreeModel->children());
+    }
+}
+
+Gtk::TreeModel::Children ExifPanel::addTag (const Gtk::TreeModel::Children& root, Glib::ustring field, Glib::ustring value, rtexif::ActionCode action, bool editable) {
+
+    Gtk::TreeModel::Row row = *(exifTreeModel->append(root));
+    row[exifColumns.action]   = action;
+    row[exifColumns.editable] = editable;
+    row[exifColumns.edited]   = false;
+    row[exifColumns.field_nopango] = field;
+    row[exifColumns.value_nopango] = value;
+    row[exifColumns.orig_value]    = value;
+    
+    if (action==AC_WRITE)
+        row[exifColumns.icon] = keepicon;
+    else if (action==AC_DONTWRITE)
+        row[exifColumns.icon] = delicon;
+    
+    if (editable) {
+        row[exifColumns.field] = Glib::ustring("<b>") + escapeHtmlChars(field) + "</b>";
+        row[exifColumns.value] = Glib::ustring("<b>") + escapeHtmlChars(value) + "</b>";
+    }
+    else if (action==AC_SYSTEM) {
+        row[exifColumns.field] = Glib::ustring("<i>") + escapeHtmlChars(field) + "</i>";
+        row[exifColumns.value] = Glib::ustring("<i>") + escapeHtmlChars(value) + "</i>";
+    }
+    else {
+        row[exifColumns.field] = escapeHtmlChars(field);
+        row[exifColumns.value] = escapeHtmlChars(value);
+    }
+    
+    return row.children();
+}
+
+void ExifPanel::addDirectory (const TagDirectory* dir, Gtk::TreeModel::Children root) {
+
+    for (int i=0; i<dir->getCount(); i++) {
+	Tag* t = (const_cast<TagDirectory*>(dir))->getTagByIndex (i);
+        if (t->getAttrib() && t->getAttrib()->action==AC_SYSTEM)
+            continue;
+        if (t->isDirectory()) 
+            for (int j=0; t->getDirectory(j); j++) {
+                Gtk::TreeModel::Children ch = addTag (root, t->nameToString (j), M("EXIFPANEL_SUBDIRECTORY"), t->getAttrib() ? t->getAttrib()->action : AC_DONTWRITE, t->getAttrib() && t->getAttrib()->editable);
+                addDirectory (t->getDirectory(j), ch);
+            }
+        else 
+            addTag (root, t->nameToString (), t->valueToString (), t->getAttrib() ? (t->getOwnMemory()?t->getAttrib()->action:AC_SYSTEM) : AC_DONTWRITE, t->getAttrib() && t->getAttrib()->editable);
+    }
+}
+
+void ExifPanel::exifSelectionChanged () {
+
+    Glib::RefPtr<Gtk::TreeSelection> selection = exifTree->get_selection();
+    std::vector<Gtk::TreeModel::Path> sel = selection->get_selected_rows();
+    if (sel.size()>1) {
+        remove->set_sensitive (1);
+        keep->set_sensitive (1);
+        reset->set_sensitive (1);
+    }
+    else if (sel.size()==1) {
+        Gtk::TreeModel::iterator iter = exifTreeModel->get_iter (sel[0]);
+        if (iter->get_value (exifColumns.action)==AC_SYSTEM) {
+            remove->set_sensitive (0);
+            keep->set_sensitive (0);
+            reset->set_sensitive (0);
+        }
+        else if (!iter->children().empty()) {
+            remove->set_sensitive (1);
+            keep->set_sensitive (1);
+            reset->set_sensitive (1);
+        }
+        else if (iter->get_value(exifColumns.icon)==delicon) {
+            remove->set_sensitive (0);
+            keep->set_sensitive (1);
+            reset->set_sensitive (1);
+        }
+        else if (iter->get_value(exifColumns.icon)==keepicon || iter->get_value(exifColumns.icon)==editicon) {
+            keep->set_sensitive (0);
+            remove->set_sensitive (1);
+            reset->set_sensitive (1);
+        }
+    }
+    else {
+        remove->set_sensitive (0);
+        keep->set_sensitive (0);
+        reset->set_sensitive (0);
+    }
+}
+
+void ExifPanel::delIt (Gtk::TreeModel::iterator iter) {
+    
+    if (!iter)
+        return;
+
+    if (iter->get_value (exifColumns.action) != AC_SYSTEM)
+        iter->set_value (exifColumns.icon, delicon);
+    if (recursiveOp)
+        for (Gtk::TreeModel::iterator i=iter->children().begin(); i!=iter->children().end(); i++)
+            delIt (i);
+}
+
+void ExifPanel::removePressed () {
+
+    std::vector<Gtk::TreeModel::Path> sel = exifTree->get_selection()->get_selected_rows();
+    for (size_t i=0; i<sel.size(); i++)
+        delIt (exifTreeModel->get_iter (sel[i]));
+
+    exifSelectionChanged ();
+    updateChangeList ();
+    notifyListener ();
+}
+
+void ExifPanel::keepIt (Gtk::TreeModel::iterator iter) {
+    
+    if (!iter)
+        return;
+
+    if (iter->get_value (exifColumns.action) != AC_SYSTEM)
+        iter->set_value (exifColumns.icon, iter->get_value (exifColumns.edited) ? editicon : keepicon);
+    if (recursiveOp)
+        for (Gtk::TreeModel::iterator i=iter->children().begin(); i!=iter->children().end(); i++)
+            keepIt (i);
+}
+
+void ExifPanel::keepPressed () {
+
+    std::vector<Gtk::TreeModel::Path> sel = exifTree->get_selection()->get_selected_rows();
+    for (size_t i=0; i<sel.size(); i++)
+        keepIt (exifTreeModel->get_iter (sel[i]));
+
+    exifSelectionChanged ();
+    updateChangeList ();
+    notifyListener ();
+}
+
+/*void ExifPanel::resetIt (Gtk::TreeModel::iterator  iter) {
+    
+    if (!iter)
+        return;
+
+    if (iter->get_value (exifColumns.action)!=AC_SYSTEM)
+        iter->set_value (exifColumns.icon, iter->get_value (exifColumns.action) ? keepicon : delicon);
+    if (iter->get_value (exifColumns.edited)) {
+        iter->set_value (exifColumns.value, Glib::ustring("<b>") + iter->get_value(exifColumns.orig_value) + "</b>");
+        iter->set_value (exifColumns.value_nopango, iter->get_value(exifColumns.orig_value));
+        iter->set_value (exifColumns.edited, false);
+    }
+    if (iter->get_value (exifColumns.action)==AC_INVALID)
+        exifTreeModel->erase (iter);
+    else 
+    if (recursiveOp)
+        for (Gtk::TreeModel::iterator i=iter->children().begin(); i!=iter->children().end(); i++)
+            resetIt (i);
+}*/
+Gtk::TreeModel::iterator ExifPanel::resetIt (Gtk::TreeModel::iterator  iter) {
+    
+    if (!iter)
+        return iter;
+
+    if (iter->get_value (exifColumns.action)!=AC_SYSTEM)
+        iter->set_value (exifColumns.icon, iter->get_value (exifColumns.action) ? keepicon : delicon);
+    if (iter->get_value (exifColumns.edited)) {
+        iter->set_value (exifColumns.value, Glib::ustring("<b>") + iter->get_value(exifColumns.orig_value) + "</b>");
+        iter->set_value (exifColumns.value_nopango, iter->get_value(exifColumns.orig_value));
+        iter->set_value (exifColumns.edited, false);
+    }
+    if (iter->get_value (exifColumns.action)==AC_INVALID) {
+        return exifTreeModel->erase (iter);
+    }
+    else 
+    if (recursiveOp) {
+        Gtk::TreeModel::iterator i = iter->children().begin();
+        while (i && i != iter->children().end())
+            i = resetIt (i);
+    }
+    return ++iter;
+}
+void ExifPanel::resetPressed () {
+
+    std::vector<Gtk::TreeModel::Path> sel = exifTree->get_selection()->get_selected_rows();
+    for (size_t i=0; i<sel.size(); i++)
+        resetIt (exifTreeModel->get_iter (sel[i]));
+
+    exifSelectionChanged ();
+    updateChangeList ();
+    notifyListener ();
+}
+
+void ExifPanel::resetAllPressed () {
+
+    setImageData (idata);
+    changeList = defChangeList;
+    applyChangeList ();
+    exifSelectionChanged ();
+    notifyListener ();
+}
+
+void ExifPanel::addPressed () {
+
+    Gtk::Dialog* dialog = new Gtk::Dialog (M("EXIFPANEL_ADDTAGDLG_TITLE"), *((Gtk::Window*)get_toplevel()), true, true);
+    dialog->add_button (Gtk::Stock::OK, Gtk::RESPONSE_OK);   
+    dialog->add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
+    
+    Gtk::HBox* hb1 = new Gtk::HBox ();
+    Gtk::HBox* hb2 = new Gtk::HBox ();
+    
+    Gtk::Label* tlabel = new Gtk::Label (M("EXIFPANEL_ADDTAGDLG_SELECTTAG")+":");
+    MyComboBoxText* tcombo = new MyComboBoxText ();
+    
+    tcombo->append_text ("Artist");
+    tcombo->append_text ("Copyright");
+    tcombo->append_text ("ImageDescription");
+    tcombo->append_text ("Exif.UserComment");
+    
+    hb1->pack_start (*tlabel, Gtk::PACK_SHRINK, 4);
+    hb1->pack_start (*tcombo);
+
+    Gtk::Label* vlabel = new Gtk::Label (M("EXIFPANEL_ADDTAGDLG_ENTERVALUE")+":");
+    Gtk::Entry* ventry = new Gtk::Entry ();
+    hb2->pack_start (*vlabel, Gtk::PACK_SHRINK, 4);
+    hb2->pack_start (*ventry);
+
+    Glib::ustring sel = getSelection (true);
+    if (sel=="")
+        tcombo->set_active_text ("Exif.UserComment");
+    else {
+        tcombo->set_active_text (sel);
+        if (tcombo->get_active ()<0) {
+            tcombo->append_text (sel);
+            tcombo->set_active_text (sel);
+        }
+        ventry->set_text (getSelectedValue ());
+    }
+    
+    ventry->set_activates_default (true);
+    dialog->set_default_response (Gtk::RESPONSE_OK);
+    dialog->get_vbox()->pack_start (*hb1, Gtk::PACK_SHRINK);
+    dialog->get_vbox()->pack_start (*hb2, Gtk::PACK_SHRINK, 4);
+    tlabel->show ();
+    tcombo->show ();
+    vlabel->show ();
+    ventry->show ();
+    hb1->show ();
+    hb2->show ();
+    
+    if (dialog->run ()== Gtk::RESPONSE_OK) {   
+        editTag (exifTreeModel->children(), tcombo->get_active_text(), ventry->get_text());
+        updateChangeList ();
+        notifyListener ();
+    }
+    
+    delete dialog;
+    delete tlabel;
+    delete tcombo;  
+    delete vlabel;
+    delete ventry;  
+    delete hb1;
+    delete hb2;  
+}
+
+void ExifPanel::editTag (Gtk::TreeModel::Children root, Glib::ustring name, Glib::ustring value) {
+
+    Glib::ustring::size_type dp = name.find_first_of ('.');
+    Glib::ustring fseg = name.substr (0,dp);
+    // look up first segment of the path
+    Gtk::TreeModel::iterator iter;
+    for (iter = root.begin(); iter!=root.end(); iter++) 
+        if (iter->get_value (exifColumns.field_nopango) == fseg)
+            break;
+    
+    if (iter==root.end() && value!="#keep" && value!="#delete") {
+        iter = exifTreeModel->append(root);
+        iter->set_value (exifColumns.field_nopango, fseg);
+        iter->set_value (exifColumns.action, AC_INVALID);
+        if (dp==Glib::ustring::npos) {
+            iter->set_value (exifColumns.value, Glib::ustring("<b>") + value + "</b>");
+            iter->set_value (exifColumns.value_nopango, value);
+            iter->set_value (exifColumns.orig_value, value);
+            iter->set_value (exifColumns.field, Glib::ustring("<b>") + fseg + "</b>");
+            iter->set_value (exifColumns.edited, true);
+            iter->set_value (exifColumns.editable, true);
+            iter->set_value (exifColumns.icon, editicon);
+        }
+        else {
+            iter->set_value (exifColumns.value, Glib::ustring(M("EXIFPANEL_SUBDIRECTORY")));
+            iter->set_value (exifColumns.value_nopango, Glib::ustring(M("EXIFPANEL_SUBDIRECTORY")));
+            iter->set_value (exifColumns.field, fseg);
+            iter->set_value (exifColumns.icon, keepicon);
+            iter->set_value (exifColumns.orig_value, Glib::ustring(M("EXIFPANEL_SUBDIRECTORY")));
+        }
+    }
+    
+    if (dp==Glib::ustring::npos) {
+        if (value=="#keep" && iter->get_value (exifColumns.action)!=AC_SYSTEM)
+            iter->set_value (exifColumns.icon, iter->get_value (exifColumns.edited) ? editicon : keepicon);
+        else if (value=="#delete" && iter->get_value (exifColumns.action)!=AC_SYSTEM)
+            iter->set_value (exifColumns.icon, delicon);
+        else {
+            iter->set_value (exifColumns.value, Glib::ustring("<b>") + value + "</b>");
+            iter->set_value (exifColumns.value_nopango, value);
+            iter->set_value (exifColumns.edited, true);
+            iter->set_value (exifColumns.icon, editicon);
+        }
+    }
+    else 
+        editTag (iter->children(), name.substr (dp+1, Glib::ustring::npos), value);
+}
+
+Glib::ustring ExifPanel::getSelectedValue () {
+
+    Glib::RefPtr<Gtk::TreeSelection> selection = exifTree->get_selection();
+    std::vector<Gtk::TreeModel::Path> rows = selection->get_selected_rows(); 
+    if (rows.size()!=1)
+        return "";   
+    Gtk::TreeModel::iterator iter = exifTreeModel->get_iter (rows[0]);
+    if (iter) 
+        return iter->get_value (exifColumns.value_nopango);
+    return "";
+}
+
+Glib::ustring ExifPanel::getSelection (bool onlyeditable) {
+
+    Glib::RefPtr<Gtk::TreeSelection> selection = exifTree->get_selection();
+    std::vector<Gtk::TreeModel::Path> rows = selection->get_selected_rows(); 
+
+    if (rows.size()!=1)
+        return "";   
+    Gtk::TreeModel::iterator iter = exifTreeModel->get_iter (rows[0]);
+
+    Glib::ustring ret = "";
+    bool first = true;
+    bool editable = false;
+    while (iter) {
+        if (first)
+            ret = iter->get_value (exifColumns.field_nopango);
+        else
+            ret = iter->get_value (exifColumns.field_nopango) + "." + ret;
+        editable = iter->get_value (exifColumns.editable);
+        iter = iter->parent ();
+        first = false;
+    }
+    if (!editable && onlyeditable)
+        return "";
+    return ret;
+}
+
+void ExifPanel::updateChangeList (Gtk::TreeModel::Children root, std::string prefix) {
+
+    if (prefix!="")
+        prefix = prefix + ".";
+
+    Gtk::TreeModel::iterator iter;
+    for (iter = root.begin(); iter!=root.end(); iter++)  {
+        if (iter->get_value (exifColumns.edited) == true)
+            changeList[ prefix+iter->get_value (exifColumns.field_nopango) ] = iter->get_value (exifColumns.value_nopango);
+        else if (iter->get_value (exifColumns.action) == AC_WRITE && iter->get_value (exifColumns.icon) == delicon)
+            changeList[ prefix+iter->get_value (exifColumns.field_nopango) ] = "#delete";
+        else if (iter->get_value (exifColumns.action) == AC_DONTWRITE && iter->get_value (exifColumns.icon) == keepicon)
+            changeList[ prefix+iter->get_value (exifColumns.field_nopango) ] = "#keep";
+        if (iter->get_value (exifColumns.icon) == keepicon)
+            updateChangeList (iter->children(), prefix + iter->get_value (exifColumns.field_nopango));
+    }
+}
+
+void ExifPanel::updateChangeList () {
+
+    changeList.clear ();
+    updateChangeList (exifTreeModel->children(), "");
+}
+
+void ExifPanel::applyChangeList () {
+
+    for (rtengine::procparams::ExifPairs::iterator i=changeList.begin(); i!=changeList.end(); i++)
+        editTag (exifTreeModel->children(), i->first, i->second);
+}
+
+void ExifPanel::row_activated (const Gtk::TreeModel::Path& path, Gtk::TreeViewColumn* column) {
+
+    Gtk::TreeModel::iterator iter = exifTreeModel->get_iter (path);
+    if (iter) {
+        if (!iter->children().empty())
+            if (exifTree->row_expanded (path))
+                exifTree->collapse_row (path);
+            else
+                exifTree->expand_row (path, false);
+        else if (iter->get_value (exifColumns.editable))
+            addPressed ();
+    }
+}
+
+
+void ExifPanel::notifyListener () {
+    
+    if (listener)
+        listener->panelChanged (EvExif, M("HISTORY_CHANGED"));
+}