/*

    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 <tqlayout.h>
#include <tqgrid.h>
#include <tqlabel.h>
#include <tqvgroupbox.h>
#include <tqcheckbox.h>
#include <tqradiobutton.h>
#include <tqlineedit.h>
#include <tqcombobox.h>
#include <tqslider.h>
#include <tqvbuttongroup.h>
#include <tqhbuttongroup.h>
#include <tqvbox.h>
#include <tqtabwidget.h>
#include <tqwhatsthis.h>

#include <klocale.h>

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

KameraConfigDialog::KameraConfigDialog(Camera */*camera*/,
					CameraWidget *widget,
					TQWidget *parent,
					const char *name) :
KDialogBase(parent, name, true, TQString(), Ok|Cancel, Ok ),
m_widgetRoot(widget)
{
    TQFrame *main = makeMainWidget();
	TQVBoxLayout *topLayout = new TQVBoxLayout(main, 0, spacingHint());
	topLayout->setAutoAdd(true);

	m_tabWidget = 0;

	appendWidget(main, widget);
}

void KameraConfigDialog::appendWidget(TQWidget *parent, CameraWidget *widget)
{
	TQWidget *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);
	
	TQString whats_this = TQString::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(widget_label);
			
			break;
		}
	case GP_WIDGET_SECTION:
		{
			if (!m_tabWidget)
				m_tabWidget = new TQTabWidget(parent);
			TQWidget *tab = new TQWidget(m_tabWidget);
			// widgets are to be aligned vertically in the tab
			TQVBoxLayout *tabLayout = new TQVBoxLayout(tab, marginHint(),
				spacingHint());
			m_tabWidget->insertTab(tab, widget_label);
			TQVBox *tabContainer = new TQVBox(tab);
			tabContainer->setSpacing(spacingHint());
			tabLayout->addWidget(tabContainer);
			newParent = tabContainer;

			tabLayout->addStretch();
		
			break;
		}
	case GP_WIDGET_TEXT:
		{
			gp_widget_get_value(widget, &widget_value_string);

			TQGrid *grid = new TQGrid(2,Qt::Horizontal, parent);
			grid->setSpacing(spacingHint());
			new TQLabel(TQString::fromLocal8Bit( widget_label )+":", grid);
			TQLineEdit *lineEdit = new TQLineEdit(widget_value_string, grid);
			m_wmap.insert(widget, lineEdit);

			if (!whats_this.isEmpty())
				TQWhatsThis::add(grid, 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);
	
			TQGroupBox *groupBox = new TQVGroupBox(widget_label, parent);
			TQSlider *slider = new TQSlider(
				( 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())
				TQWhatsThis::add(groupBox, whats_this);
		
			break;
		}
	case GP_WIDGET_TOGGLE:
		{
			gp_widget_get_value(widget, &widget_value_int);
		
			TQCheckBox *checkBox = new TQCheckBox(widget_label, parent);
			checkBox->setChecked(widget_value_int);
			m_wmap.insert(widget, checkBox);

			if (!whats_this.isEmpty())
				TQWhatsThis::add(checkBox, 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
			TQButtonGroup *buttonGroup;
			if (count > 4)
				buttonGroup = new TQVButtonGroup(widget_label, parent);
			else
				buttonGroup = new TQHButtonGroup(widget_label, parent);
			
			for(int i = 0; i < count; ++i) {
				const char *widget_choice;
				gp_widget_get_choice(widget, i, &widget_choice);

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

			if (!whats_this.isEmpty())
				TQWhatsThis::add(buttonGroup, whats_this);

			break;
		}
	case GP_WIDGET_MENU:
		{
			gp_widget_get_value(widget, &widget_value_string);
	
			TQComboBox *comboBox = new TQComboBox(FALSE, parent);
			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())
				TQWhatsThis::add(comboBox, 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
			new TQLabel(i18n("Button (not supported by KControl)"), parent);
	
			break;
		}
	case GP_WIDGET_DATE:
		{
			// TODO
			new TQLabel(i18n("Date (not supported by KControl)"), parent);

			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 TQSpacerItem(0, 0, TQSizePolicy::MinimumExpanding, TQSizePolicy::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:
		{
			TQLineEdit *lineEdit = static_cast<TQLineEdit *>(m_wmap[widget]);
			gp_widget_set_value(widget, (void *)lineEdit->text().local8Bit().data());
	
			break;
		}
	case GP_WIDGET_RANGE:
		{
			TQSlider *slider = static_cast<TQSlider *>(m_wmap[widget]);
			float value_float = slider->value();
			gp_widget_set_value(widget, (void *)&value_float);
			
			break;
		}
	case GP_WIDGET_TOGGLE:
		{
			TQCheckBox *checkBox = static_cast<TQCheckBox *>(m_wmap[widget]);
			int value_int = checkBox->isChecked() ? 1 : 0;
			gp_widget_set_value(widget, (void *)&value_int);
			
			break;
		}
	case GP_WIDGET_RADIO:
		{
			TQButtonGroup *buttonGroup = static_cast<TQVButtonGroup *>(m_wmap[widget]);
			gp_widget_set_value(widget, (void *)buttonGroup->selected()->text().local8Bit().data());

			break;
		}
	case GP_WIDGET_MENU:
		{
			TQComboBox *comboBox = static_cast<TQComboBox *>(m_wmap[widget]);
			gp_widget_set_value(widget, (void *)comboBox->currentText().local8Bit().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 TQt widget values into CameraWidget hierarchy
	updateWidgetValue(m_widgetRoot);

	// 'ok' dialog
	accept();
}