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kameraconfigdialog.cpp

/*

    Copyright (C) 2001 The Kompany
              2002-2003 Ilya Konstantinov <kde-devel@future.shiny.co.il>
              2002-2003 Marcus Meissner <marcus@jet.franken.de>
              2003            Nadeem Hasan <nhasan@nadmm.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 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 <qlayout.h>
#include <qlabel.h>
#include <Q3GroupBox>
#include <qcheckbox.h>
#include <qradiobutton.h>
#include <qlineedit.h>
#include <qcombobox.h>
#include <qslider.h>
#include <Q3ButtonGroup>

#include <kvbox.h>
#include <qtabwidget.h>

//Added by qt3to4:
#include <QFrame>
#include <QVBoxLayout>

#include <klocale.h>

#include "kameraconfigdialog.h"
#include "kameraconfigdialog.moc"

KameraConfigDialog::KameraConfigDialog(Camera */*camera*/,
                              CameraWidget *widget,
                              QWidget *parent,
                              const char *name) :
    KDialog(parent),
    m_widgetRoot(widget)
{
    setButtons( Ok|Cancel );
    setDefaultButton( Ok );
    setModal( true );

    QFrame *main = new QFrame( this );
    setMainWidget( main );
    QVBoxLayout *topLayout = new QVBoxLayout(main);
    topLayout->setSpacing(spacingHint());
    topLayout->setMargin(0);

    m_tabWidget = 0;

    appendWidget(main, widget);
    connect(this,SIGNAL(okClicked()),this,SLOT(slotOk()));
}

void KameraConfigDialog::appendWidget(QWidget *parent, CameraWidget *widget)
{
      QWidget *newParent = parent;

      CameraWidgetType widget_type;
      const char *widget_name;
      const char *widget_info;
      const char *widget_label;
      float widget_value_float;
      int widget_value_int;
      const char *widget_value_string;
      gp_widget_get_type(widget, &widget_type);
      gp_widget_get_label(widget, &widget_label);
      gp_widget_get_info(widget, &widget_info);
      gp_widget_get_name(widget, &widget_name);

      QString whats_this = QString::fromLocal8Bit(widget_info);   // gphoto2 doesn't seem to have any standard for i18n

      // Add this widget to parent
      switch(widget_type) {
      case GP_WIDGET_WINDOW:
            {
                  setCaption(QString::fromLocal8Bit(widget_label));

                  break;
            }
      case GP_WIDGET_SECTION:
            {
                  if (!m_tabWidget) {
                        m_tabWidget = new QTabWidget(parent);
                        parent->layout()->addWidget(m_tabWidget);
                  }
                  QWidget *tab = new QWidget(m_tabWidget);
                  // widgets are to be aligned vertically in the tab
                  QVBoxLayout *tabLayout = new QVBoxLayout(tab, marginHint(),
                        spacingHint());
                  m_tabWidget->insertTab(tab, QString::fromLocal8Bit(widget_label));
                  KVBox *tabContainer = new KVBox(tab);
                  tabContainer->setSpacing(spacingHint());
                  tabLayout->addWidget(tabContainer);
                  newParent = tabContainer;

                  tabLayout->addStretch();

                  break;
            }
      case GP_WIDGET_TEXT:
            {
                  gp_widget_get_value(widget, &widget_value_string);

                  QWidget *grid = new QWidget(parent);
                  QGridLayout *gridLayout = new QGridLayout(grid);
                  gridLayout->setSpacing(spacingHint());
                  grid->setLayout(gridLayout);
                  parent->layout()->addWidget(grid);
                  QLabel *label = new QLabel(QString::fromLocal8Bit( widget_label )+':', grid);
                  QLineEdit *lineEdit = new QLineEdit(widget_value_string, grid);

                  gridLayout->addWidget(label, 0, 0, Qt::AlignLeft);
                  gridLayout->addWidget(label, 0, 1, Qt::AlignRight);
                  m_wmap.insert(widget, lineEdit);

                  if (!whats_this.isEmpty())
                        grid->setWhatsThis( whats_this);

                  break;
            }
      case GP_WIDGET_RANGE:
            {
                  float widget_low;
                  float widget_high;
                  float widget_increment;
                  gp_widget_get_range(widget, &widget_low, &widget_high, &widget_increment);
                  gp_widget_get_value(widget, &widget_value_float);

                  Q3GroupBox *groupBox = new Q3GroupBox(1, Qt::Horizontal,QString::fromLocal8Bit(widget_label), parent);
                  parent->layout()->addWidget(groupBox);
                  QSlider *slider = new QSlider(
                        ( int )widget_low,
                        ( int )widget_high,
                        ( int )widget_increment,
                        ( int )widget_value_float,
                        Qt::Horizontal,
                        groupBox );
                  m_wmap.insert(widget, slider);

                  if (!whats_this.isEmpty())
                        groupBox->setWhatsThis( whats_this);

                  break;
            }
      case GP_WIDGET_TOGGLE:
            {
                  gp_widget_get_value(widget, &widget_value_int);

                  QCheckBox *checkBox = new QCheckBox(QString::fromLocal8Bit(widget_label), parent);
                  parent->layout()->addWidget(checkBox);
                  checkBox->setChecked(widget_value_int);
                  m_wmap.insert(widget, checkBox);

                  if (!whats_this.isEmpty())
                        checkBox->setWhatsThis( whats_this);

                  break;
            }
      case GP_WIDGET_RADIO:
            {
                  gp_widget_get_value(widget, &widget_value_string);

                  int count = gp_widget_count_choices(widget);

                  // for less than 5 options, align them horizontally
                  Q3ButtonGroup *buttonGroup;
                  if (count > 4)
                        buttonGroup = new Q3VButtonGroup(QString::fromLocal8Bit(widget_label), parent);
                  else
                        buttonGroup = new Q3HButtonGroup(QString::fromLocal8Bit(widget_label), parent);
                  parent->layout()->addWidget(buttonGroup);

                  for(int i = 0; i < count; ++i) {
                        const char *widget_choice;
                        gp_widget_get_choice(widget, i, &widget_choice);

                        new QRadioButton(widget_choice, buttonGroup);
                        if(!strcmp(widget_value_string, widget_choice))
                              buttonGroup->setButton(i);
                  }
                  m_wmap.insert(widget, buttonGroup);

                  if (!whats_this.isEmpty())
                        buttonGroup->setWhatsThis( whats_this);

                  break;
            }
      case GP_WIDGET_MENU:
            {
                  gp_widget_get_value(widget, &widget_value_string);

                  QComboBox *comboBox = new QComboBox(parent);
                  parent->layout()->addWidget(comboBox);
                  comboBox->clear();
                  for(int i = 0; i < gp_widget_count_choices(widget); ++i) {
                        const char *widget_choice;
                        gp_widget_get_choice(widget, i, &widget_choice);

                        comboBox->insertItem(widget_choice);
                        if(!strcmp(widget_value_string, widget_choice))
                              comboBox->setCurrentItem(i);
                  }
                  m_wmap.insert(widget, comboBox);

                  if (!whats_this.isEmpty())
                        comboBox->setWhatsThis( whats_this);

                  break;
            }
      case GP_WIDGET_BUTTON:
            {
                  // TODO
                  // I can't see a way of implementing this. Since there is
                  // no way of telling which button sent you a signal, we
                  // can't map to the appropriate widget->callback
                  QLabel *label = new QLabel(i18n("Button (not supported by KControl)"), parent);
                  parent->layout()->addWidget(label);

                  break;
            }
      case GP_WIDGET_DATE:
            {
                  // TODO
                  QLabel * label = new QLabel(i18n("Date (not supported by KControl)"), parent);
                  parent->layout()->addWidget(label);

                  break;
            }
      default:
            return;
      }

      // Append all this widgets children
      for(int i = 0; i < gp_widget_count_children(widget); ++i) {
            CameraWidget *widget_child;
            gp_widget_get_child(widget, i, &widget_child);
            appendWidget(newParent, widget_child);
      }

      // Things that must be done after all children were added
/*
      switch (widget_type) {
      case GP_WIDGET_SECTION:
            {
                  tabLayout->addItem( new QSpacerItem(0, 0, QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding) );
                  break;
            }
      }
*/
}

void KameraConfigDialog::updateWidgetValue(CameraWidget *widget)
{
      CameraWidgetType widget_type;
      gp_widget_get_type(widget, &widget_type);

      switch(widget_type) {
      case GP_WIDGET_WINDOW:
            // nothing to do
            break;
      case GP_WIDGET_SECTION:
            // nothing to do
            break;
      case GP_WIDGET_TEXT:
            {
                  QLineEdit *lineEdit = static_cast<QLineEdit *>(m_wmap[widget]);
                  gp_widget_set_value(widget, (void *)lineEdit->text().toLocal8Bit().data());

                  break;
            }
      case GP_WIDGET_RANGE:
            {
                  QSlider *slider = static_cast<QSlider *>(m_wmap[widget]);
                  float value_float = slider->value();
                  gp_widget_set_value(widget, (void *)&value_float);

                  break;
            }
      case GP_WIDGET_TOGGLE:
            {
                  QCheckBox *checkBox = static_cast<QCheckBox *>(m_wmap[widget]);
                  int value_int = checkBox->isChecked() ? 1 : 0;
                  gp_widget_set_value(widget, (void *)&value_int);

                  break;
            }
      case GP_WIDGET_RADIO:
            {
                  Q3ButtonGroup *buttonGroup = static_cast<Q3VButtonGroup *>(m_wmap[widget]);
                  gp_widget_set_value(widget, (void *)buttonGroup->selected()->text().toLocal8Bit().data());

                  break;
            }
      case GP_WIDGET_MENU:
            {
                  QComboBox *comboBox = static_cast<QComboBox *>(m_wmap[widget]);
                  gp_widget_set_value(widget, (void *)comboBox->currentText().toLocal8Bit().data());

                  break;
            }
      case GP_WIDGET_BUTTON:
            // nothing to do
            break;
      case GP_WIDGET_DATE:
            {
                  // not implemented
                  break;
            }
      }

      // Copy child widget values
      for(int i = 0; i < gp_widget_count_children(widget); ++i) {
            CameraWidget *widget_child;
            gp_widget_get_child(widget, i, &widget_child);
            updateWidgetValue(widget_child);
      }
}

void KameraConfigDialog::slotOk()
{
      // Copy Qt widget values into CameraWidget hierarchy
      updateWidgetValue(m_widgetRoot);

      // 'ok' dialog
      accept();
}

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