| /* |
| * Copyright (C) 2015 Savoir-Faire Linux Inc. |
| * Author: Stepan Salenikovich <stepan.salenikovich@savoirfairelinux.com> |
| * |
| * This program 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. |
| * |
| * This program 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 this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Additional permission under GNU GPL version 3 section 7: |
| * |
| * If you modify this program, or any covered work, by linking or |
| * combining it with the OpenSSL project's OpenSSL library (or a |
| * modified version of that library), containing parts covered by the |
| * terms of the OpenSSL or SSLeay licenses, Savoir-Faire Linux Inc. |
| * grants you additional permission to convey the resulting work. |
| * Corresponding Source for a non-source form of such a combination |
| * shall include the source code for the parts of OpenSSL used as well |
| * as that of the covered work. |
| */ |
| |
| #include "models.h" |
| |
| #include <gtk/gtk.h> |
| #include "../models/gtkqtreemodel.h" |
| #include "../models/gtkqsortfiltertreemodel.h" |
| #include <QtCore/QModelIndex> |
| #include <QtCore/QItemSelectionModel> |
| |
| QModelIndex |
| get_index_from_selection(GtkTreeSelection *selection) |
| { |
| GtkTreeIter iter; |
| GtkTreeModel *model = NULL; |
| |
| if (gtk_tree_selection_get_selected(selection, &model, &iter)) { |
| if (GTK_IS_Q_TREE_MODEL(model)) |
| return gtk_q_tree_model_get_source_idx(GTK_Q_TREE_MODEL(model), &iter); |
| else if (GTK_IS_Q_SORT_FILTER_TREE_MODEL(model)) |
| return gtk_q_sort_filter_tree_model_get_source_idx(GTK_Q_SORT_FILTER_TREE_MODEL(model), &iter); |
| } |
| return QModelIndex(); |
| } |
| |
| QModelIndex |
| gtk_combo_box_get_index(GtkComboBox *box) |
| { |
| GtkTreeIter filter_iter; |
| GtkTreeIter child_iter; |
| GtkTreeModel *filter_model = gtk_combo_box_get_model(box); |
| GtkTreeModel *model = filter_model; |
| |
| GtkTreeIter *iter = NULL; |
| |
| if (GTK_IS_TREE_MODEL_FILTER(filter_model)) |
| model = gtk_tree_model_filter_get_model(GTK_TREE_MODEL_FILTER(filter_model)); |
| |
| if (gtk_combo_box_get_active_iter(box, &filter_iter)) { |
| if (GTK_IS_TREE_MODEL_FILTER(filter_model)) { |
| gtk_tree_model_filter_convert_iter_to_child_iter( |
| GTK_TREE_MODEL_FILTER(filter_model), |
| &child_iter, |
| &filter_iter); |
| iter = &child_iter; |
| } else { |
| iter = &filter_iter; |
| } |
| |
| if (GTK_IS_Q_TREE_MODEL(model)) |
| return gtk_q_tree_model_get_source_idx(GTK_Q_TREE_MODEL(model), iter); |
| else if (GTK_IS_Q_SORT_FILTER_TREE_MODEL(model)) |
| return gtk_q_sort_filter_tree_model_get_source_idx(GTK_Q_SORT_FILTER_TREE_MODEL(model), iter); |
| } |
| return QModelIndex(); |
| } |
| |
| static void |
| update_selection(GtkComboBox *box, QItemSelectionModel *selection_model) |
| { |
| QModelIndex idx = gtk_combo_box_get_index(box); |
| if (idx.isValid()) { |
| selection_model->setCurrentIndex(idx, QItemSelectionModel::ClearAndSelect); |
| } |
| } |
| |
| static gboolean |
| filter_disabled_items(GtkTreeModel *model, GtkTreeIter *iter, G_GNUC_UNUSED gpointer data) |
| { |
| QModelIndex idx; |
| if (GTK_IS_Q_TREE_MODEL(model)) |
| idx = gtk_q_tree_model_get_source_idx(GTK_Q_TREE_MODEL(model), iter); |
| else if (GTK_IS_Q_SORT_FILTER_TREE_MODEL(model)) |
| idx = gtk_q_sort_filter_tree_model_get_source_idx(GTK_Q_SORT_FILTER_TREE_MODEL(model), iter); |
| |
| if (idx.isValid()) { |
| return idx.flags() & Qt::ItemIsEnabled ? TRUE : FALSE; |
| } |
| return FALSE; |
| } |
| |
| void |
| gtk_combo_box_set_active_index(GtkComboBox *box, const QModelIndex& idx) |
| { |
| if (idx.isValid()) { |
| GtkTreeIter new_iter; |
| GtkTreeModel *filter_model = gtk_combo_box_get_model(box); |
| g_return_if_fail(filter_model); |
| GtkTreeModel *model = filter_model; |
| |
| if (GTK_IS_TREE_MODEL_FILTER(filter_model)) |
| model = gtk_tree_model_filter_get_model(GTK_TREE_MODEL_FILTER(filter_model)); |
| |
| gboolean valid = FALSE; |
| if (GTK_IS_Q_TREE_MODEL(model)) { |
| valid = gtk_q_tree_model_source_index_to_iter( |
| GTK_Q_TREE_MODEL(model), idx, &new_iter); |
| } else if (GTK_IS_Q_SORT_FILTER_TREE_MODEL(model)) { |
| valid = gtk_q_sort_filter_tree_model_source_index_to_iter( |
| GTK_Q_SORT_FILTER_TREE_MODEL(model), idx, &new_iter); |
| } |
| |
| if (valid) { |
| if (GTK_IS_TREE_MODEL_FILTER(filter_model)) { |
| GtkTreeIter filter_iter; |
| if (gtk_tree_model_filter_convert_child_iter_to_iter( |
| GTK_TREE_MODEL_FILTER(filter_model), |
| &filter_iter, |
| &new_iter) |
| ) { |
| gtk_combo_box_set_active_iter(box, &filter_iter); |
| } else { |
| g_warning("failed to convert iter from source model to filter model iter"); |
| } |
| } else { |
| gtk_combo_box_set_active_iter(box, &new_iter); |
| } |
| } else { |
| g_warning("Given QModelIndex doesn't exist in GtkTreeModel"); |
| } |
| } |
| } |
| |
| QMetaObject::Connection |
| gtk_combo_box_set_qmodel(GtkComboBox *box, QAbstractItemModel *qmodel, QItemSelectionModel *selection_model) |
| { |
| QMetaObject::Connection connection; |
| GtkTreeModel *model; |
| |
| /* check if its a QAbstractItemModel or a QSortFilterProxyModel */ |
| QSortFilterProxyModel *proxy_qmodel = qobject_cast<QSortFilterProxyModel*>(qmodel); |
| if (proxy_qmodel) { |
| model = (GtkTreeModel *)gtk_q_sort_filter_tree_model_new( |
| proxy_qmodel, |
| 1, |
| Qt::DisplayRole, G_TYPE_STRING); |
| } else { |
| model = (GtkTreeModel *)gtk_q_tree_model_new( |
| qmodel, |
| 1, |
| Qt::DisplayRole, G_TYPE_STRING); |
| } |
| |
| /* use a filter model to remove disabled items */ |
| GtkTreeModel *filter_model = gtk_tree_model_filter_new(model, NULL); |
| gtk_tree_model_filter_set_visible_func(GTK_TREE_MODEL_FILTER(filter_model), |
| (GtkTreeModelFilterVisibleFunc)filter_disabled_items, |
| NULL, NULL); |
| |
| gtk_combo_box_set_model(box, GTK_TREE_MODEL(filter_model)); |
| GtkCellRenderer *renderer = gtk_cell_renderer_text_new(); |
| gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(box), renderer, FALSE); |
| gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(box), renderer, |
| "text", 0, NULL); |
| |
| if (!selection_model) return connection; |
| |
| /* sync the initial selection */ |
| gtk_combo_box_set_active_index(box, selection_model->currentIndex()); |
| |
| /* connect signals to and from the selection model */ |
| connection = QObject::connect( |
| selection_model, |
| &QItemSelectionModel::currentChanged, |
| [=](const QModelIndex current, G_GNUC_UNUSED const QModelIndex & previous) { |
| gtk_combo_box_set_active_index(box, current); |
| } |
| ); |
| g_signal_connect(box, |
| "changed", |
| G_CALLBACK(update_selection), |
| selection_model); |
| |
| return connection; |
| } |