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/*
* Copyright 2010 Inalogic® Inc.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License, as
* published by the Free Software Foundation; either version 2.1 or 3.0
* of the License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the applicable version of the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of both the GNU Lesser General Public
* License along with this program. If not, see <http://www.gnu.org/licenses/>
*
* Authored by: Jay Taoko <jaytaoko@inalogic.com>
*
*/
#include "Nux.h"
#include "RadioButton.h"
#include "RadioButtonGroup.h"
namespace nux
{
NUX_IMPLEMENT_OBJECT_TYPE(RadioButtonGroup);
RadioButtonGroup::RadioButtonGroup(NUX_FILE_LINE_DECL)
: InitiallyUnownedObject(NUX_FILE_LINE_PARAM) // RadioButtonGroup is created as un-owned
, active_button_index_(0)
{
}
RadioButtonGroup::~RadioButtonGroup()
{
std::vector<ObjectWeakPtr<RadioButton> >::iterator it;
for (it = radio_button_array_.begin(); it != radio_button_array_.end(); it++)
{
if ((*it).IsValid())
{
(*it)->SetRadioButtonGroup(NULL);
(*it)->radio_group_index_ = -1;
}
}
}
void RadioButtonGroup::ConnectButton(RadioButton* radio)
{
if (radio == NULL)
{
return;
}
if (!radio->Type().IsDerivedFromType(RadioButton::StaticObjectType))
{
return;
}
std::vector<ObjectWeakPtr<RadioButton> >::iterator it;
for (it = radio_button_array_.begin(); it != radio_button_array_.end(); it++)
{
if ((*it).IsValid() && ((*it).GetPointer() == radio))
{
// already in
return;
}
}
size_t index = (unsigned int) radio_button_array_.size();
if (index == 0)
{
// Inserting the first radio button
if (radio->GetRadioButtonGroup().IsValid())
{
// Disconnect from the other selector
radio->GetRadioButtonGroup()->DisconnectButton(radio);
}
radio->SetRadioButtonGroup(this);
radio->radio_group_index_ = 0;
radio->SetStatePrivate(true);
radio_button_array_.push_back(ObjectWeakPtr<RadioButton>(radio));
active_button_index_ = 0;
}
else
{
if (radio->GetRadioButtonGroup().IsValid())
{
// Disconnect from the other selector
radio->GetRadioButtonGroup()->DisconnectButton(radio);
}
radio->SetRadioButtonGroup(this);
radio->radio_group_index_ = index;
// When a radio button is added to a group that is not empty, its check state is set to false.
radio->SetStatePrivate(false);
radio_button_array_.push_back(ObjectWeakPtr<RadioButton>(radio));
}
}
void RadioButtonGroup::DisconnectButton(RadioButton* radio)
{
bool found = false;
size_t array_size = (unsigned int) radio_button_array_.size();
std::vector<ObjectWeakPtr<RadioButton> >::iterator it;
it = radio_button_array_.begin();
size_t i;
for (i = 0; i < array_size; i++, it++)
{
if (radio_button_array_[i] == radio)
{
radio->radio_group_index_ = -1;
radio->SetStatePrivate(false);
radio_button_array_.erase(it);
found = true;
break;
}
}
if (found && (i - 1 > 0) && (!radio_button_array_.empty()))
{
// The previous button becomes active
radio_button_array_[i]->SetStatePrivate(true);
}
}
int RadioButtonGroup::GetNumButtons()
{
int count = 0;
std::vector<ObjectWeakPtr<RadioButton> >::iterator it;
for (it = radio_button_array_.begin(); it != radio_button_array_.end(); ++it)
{
if ((*it).IsValid())
{
++count;
}
}
return count;
}
void RadioButtonGroup::NotifyClick(RadioButton* radio)
{
std::vector<ObjectWeakPtr<RadioButton> >::iterator it;
for (it = radio_button_array_.begin(); it != radio_button_array_.end(); ++it)
{
if ((*it).GetPointer() != radio)
{
if ((*it).IsValid())
{
(*it)->SetStatePrivate(false, true);
}
}
else
{
if ((*it).IsValid())
{
(*it)->SetStatePrivate(true, true);
}
}
}
}
void RadioButtonGroup::SetActiveButton(RadioButton* radio, bool emit_signal)
{
std::vector<ObjectWeakPtr<RadioButton> >::iterator it = find(radio_button_array_.begin(), radio_button_array_.end(), radio);
if (it == radio_button_array_.end())
return;
if ((*it).IsValid() == false)
{
// The button has been destroyed.
// Remove it from the array
radio_button_array_.erase(it);
return;
}
for (it = radio_button_array_.begin(); it != radio_button_array_.end(); ++it)
{
if ((*it).IsValid() && ((*it).GetPointer() != radio))
{
(*it)->SetStatePrivate(false, emit_signal);
}
}
radio->SetStatePrivate(true, emit_signal);
}
}
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