ManageInterfacesDialog: New handling of pipes

This moves the handling of pipes to the new InterfaceTreeModel as well.
It also includes a new PathChooserDelegate and cache handling for adding
data to an interface list without putting it into storage

Change-Id: Id255a81161b4da517e26127abe8ea7f5eb36d55a
Reviewed-on: https://code.wireshark.org/review/18497
Reviewed-by: Roland Knall <rknall@gmail.com>

1 files changed, 152 insertions, 0 deletions

diff --git a/ui/qt/path_chooser_delegate.cpp b/ui/qt/path_chooser_delegate.cpp
new file mode 100644
index 0000000000..0fe2130ffd
--- /dev/null
+++ b/ui/qt/path_chooser_delegate.cpp
@@ -0,0 +1,152 @@
+/* path_chooser_delegate.cpp
+ * Delegate to select a file path for a treeview entry
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * 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 2
+ * 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.
+ */
+
+#include "config.h"
+
+#include "epan/prefs.h"
+#include "ui/last_open_dir.h"
+
+#include "ui/qt/path_chooser_delegate.h"
+
+#include <QHBoxLayout>
+#include <QPushButton>
+#include <QFileDialog>
+#include <QWidget>
+#include <QLineEdit>
+
+PathChooserDelegate::PathChooserDelegate(QObject *parent)
+    : QStyledItemDelegate(parent)
+{
+}
+
+QWidget* PathChooserDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &) const
+{
+    QWidget * pathEditor = new QWidget(parent);
+    QHBoxLayout *hbox = new QHBoxLayout(pathEditor);
+    pathEditor->setLayout(hbox);
+    QLineEdit * lineEdit = new QLineEdit(pathEditor);
+    QPushButton *btnBrowse = new QPushButton(pathEditor);
+
+    btnBrowse->setText(tr("Browse"));
+
+    hbox->setContentsMargins(0, 0, 0, 0);
+    hbox->addWidget(lineEdit);
+    hbox->addWidget(btnBrowse);
+    hbox->setSizeConstraint(QLayout::SetMinimumSize);
+
+    // Grow the item to match the editor. According to the QAbstractItemDelegate
+    // documenation we're supposed to reimplement sizeHint but this seems to work.
+    QSize size = option.rect.size();
+    size.setHeight(qMax(option.rect.height(), hbox->sizeHint().height()));
+
+    lineEdit->selectAll();
+    pathEditor->setFocusProxy(lineEdit);
+    pathEditor->setFocusPolicy(lineEdit->focusPolicy());
+
+    connect(btnBrowse, SIGNAL(pressed()), this, SLOT(browse_button_clicked()));
+    return pathEditor;
+}
+
+void PathChooserDelegate::updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &) const
+{
+    QRect rect = option.rect;
+
+    // Make sure the editor doesn't get squashed.
+    editor->adjustSize();
+    rect.setHeight(qMax(option.rect.height(), editor->height()));
+    editor->setGeometry(rect);
+}
+
+void PathChooserDelegate::browse_button_clicked()
+{
+    char *open_dir = NULL;
+
+    switch ( prefs.gui_fileopen_style )
+    {
+
+    case FO_STYLE_LAST_OPENED:
+        open_dir = get_last_open_dir();
+        break;
+
+    case FO_STYLE_SPECIFIED:
+        if ( prefs.gui_fileopen_dir[0] != '\0' )
+            open_dir = prefs.gui_fileopen_dir;
+        break;
+    }
+
+    QString file_name = QFileDialog::getOpenFileName(new QWidget(), tr("Open Pipe"), open_dir);
+    if ( !file_name.isEmpty() )
+    {
+        QWidget * parent = ((QPushButton *)sender())->parentWidget();
+        QLineEdit * lineEdit = parent->findChild<QLineEdit*>();
+        if ( lineEdit )
+        {
+            lineEdit->setText(file_name);
+            emit commitData(parent);
+
+        }
+    }
+}
+
+void PathChooserDelegate::setEditorData(QWidget *editor, const QModelIndex &idx) const
+{
+    if ( idx.isValid() )
+    {
+        QString content = idx.data().toString();
+        QLineEdit * lineEdit = editor->findChild<QLineEdit*>();
+        if ( lineEdit )
+        {
+            lineEdit->setText(content);
+        }
+    }
+    else
+        QStyledItemDelegate::setEditorData(editor, idx);
+}
+
+void PathChooserDelegate::setModelData(QWidget *editor, QAbstractItemModel * model, const QModelIndex &idx) const
+{
+    if ( idx.isValid() )
+    {
+        QLineEdit * lineEdit = editor->findChild<QLineEdit*>();
+        if ( lineEdit )
+        {
+            model->setData(idx, lineEdit->text());
+        }
+    }
+    else
+    {
+        QStyledItemDelegate::setModelData(editor, model, idx);
+    }
+}
+
+/*
+ * Editor modelines
+ *
+ * Local Variables:
+ * c-basic-offset: 4
+ * tab-width: 8
+ * indent-tabs-mode: nil
+ * End:
+ *
+ * ex: set shiftwidth=4 tabstop=8 expandtab:
+ * :indentSize=4:tabSize=8:noTabs=true:
+ */