#include "Scene.h"
#include "ProjectionModel.h"
#include "gui/Defines.h"
#include "gui/QSceneWidget.h"

using namespace projection;

QSceneWidget::QSceneWidget(QWidget* pParent, Qt::WFlags flags)
    : QWidget(pParent, flags)
{
    ui.setupUi(this);

    m_pScene = NULL;
}

QSceneWidget::~QSceneWidget()
{
}

void QSceneWidget::setScene(Scene* pScene)
{
	// Note : only scene knows the scene "names". The combo and the stackedWidget have to adapt themselves to the Scene
	Q_ASSERT(pScene);
	Q_ASSERT(!m_pScene); // <-- If this Q_ASSERT match, this is that 'setScene()' has been called twice. Then we'll need to delete all the widgets.
    m_pScene = pScene;
    ui.typeComboBox->clear();
    for (unsigned int i=0; i<m_pScene->getNumContents(); ++i)
	{
        QString name = m_pScene->getContentName(i);
        ui.typeComboBox->addItem(name);

		SceneContent *sc = m_pScene->getContent(name);
		SceneInterface *si = sc->plugin();
		SceneWidget *widget = si->newSceneWidget(sc->scene_name());
		ui.stackedWidget->addWidget(widget);
		widget->disconnect();
		m_pScene->disconnect();
		connect(widget, SIGNAL(dataChanged(const SceneContent&)), m_pScene, SLOT(updateSceneContent(const SceneContent&)));
	}

    updateGUI();
}

void QSceneWidget::updateGUI()
{
    if (m_pScene)
    {
        ui.transformWidget->setMatrix(m_pScene->getMatrix());

        ui.showInDesignViewCheckBox->setChecked(m_pScene->getShowInDesignView());
        ui.sceneSizeEdit->setText(formatValue(m_pScene->getSize()));
        ui.gridCheckBox->setChecked(m_pScene->getShowGrid());
        ui.gridSizeEdit->setText(formatValue(m_pScene->getShowGrid()));

        ui.typeComboBox->setCurrentIndex(ui.typeComboBox->findText(m_pScene->getCurrentContentName()));
        ui.stackedWidget->setCurrentIndex(ui.typeComboBox->currentIndex());

		SceneWidget* pSceneWidget = static_cast<SceneWidget*>(ui.stackedWidget->currentWidget());
		Q_ASSERT(NULL!=pSceneWidget);
		pSceneWidget->updateGUI(m_pScene->getCurrentContent());
    }
}

void QSceneWidget::on_transformWidget_matrixChanged(const TransformMatrix& matrix)
{
    if (m_pScene && m_pScene->getMatrix() != matrix)
    {
        m_pScene->setMatrix(matrix);
        updateGUI();
    }
}

void QSceneWidget::on_typeComboBox_activated(int)
{
    if (m_pScene)
    {
        m_pScene->setCurrentContent(ui.typeComboBox->currentText());
        updateGUI();
    }
}

void QSceneWidget::on_showInDesignViewCheckBox_toggled(bool checked)
{
    if (m_pScene)
        m_pScene->setShowInDesignView(checked);
}

void QSceneWidget::on_sceneSizeEdit_editingFinished()
{
    if (m_pScene)
        m_pScene->setSize(formatValue(ui.sceneSizeEdit->text()));
}

void QSceneWidget::on_gridCheckBox_toggled(bool checked)
{
    if (m_pScene)
        m_pScene->setShowGrid(checked);
}

void QSceneWidget::on_gridSizeEdit_editingFinished()
{
    if (m_pScene && m_pScene->getGridSize() != ui.gridSizeEdit->text().toDouble())
        m_pScene->setGridSize(ui.gridSizeEdit->text().toDouble());
}

void QSceneWidget::on_centerViewButton_clicked()
{
    m_pScene->centerView();
}

void QSceneWidget::on_viewAllButton_clicked()
{
    m_pScene->viewAll();
}