pv/prop/string.cpp

   1 /*
   2  * This file is part of the PulseView project.
   3  *
   4  * Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <cassert>
  21
  22 #include <QLineEdit>
  23 #include <QSpinBox>
  24
  25 #include "string.hpp"
  26
  27 using std::string;
  28
  29 using Glib::ustring;
  30
  31 namespace pv {
  32 namespace prop {
  33
  34 String::String(QString name,
  35         Getter getter,
  36         Setter setter) :
  37         Property(name, getter, setter),
  38         line_edit_(nullptr)
  39 {
  40 }
  41
  42 QWidget* String::get_widget(QWidget *parent, bool auto_commit)
  43 {
  44         if (line_edit_)
  45                 return line_edit_;
  46
  47         if (!getter_)
  48                 return nullptr;
  49
  50         Glib::VariantBase variant = getter_();
  51         if (!variant.gobj())
  52                 return nullptr;
  53
  54         string value = Glib::VariantBase::cast_dynamic<Glib::Variant<ustring>>(
  55                 variant).get();
  56
  57         line_edit_ = new QLineEdit(parent);
  58         line_edit_->setText(QString::fromStdString(value));
  59
  60         if (auto_commit)
  61                 connect(line_edit_, SIGNAL(textEdited(const QString&)),
  62                         this, SLOT(on_text_edited(const QString&)));
  63
  64         return line_edit_;
  65 }
  66
  67 void String::commit()
  68 {
  69         assert(setter_);
  70
  71         if (!line_edit_)
  72                 return;
  73
  74         QByteArray ba = line_edit_->text().toLocal8Bit();
  75         setter_(Glib::Variant<ustring>::create(ba.data()));
  76 }
  77
  78 void String::on_text_edited(const QString&)
  79 {
  80         commit();
  81 }
  82
  83 }  // namespace prop
  84 }  // namespace pv