#if !defined(__PREVIEWSETTINGSDLG_H)
#define __PREVIEWSETTINGSDLG_H

#include "common.h"
#include <mitsuba/hw/renderer.h>

namespace Ui {
	class PreviewSettingsDialog;
}

struct SceneContext;
class PreviewSettingsDialog : public QDialog {
    Q_OBJECT
public:
	PreviewSettingsDialog(QWidget *parent, 
		SceneContext *ctx, const RendererCapabilities *cap);
	virtual ~PreviewSettingsDialog();

signals:
	void pathLengthChanged(int length);
	void shadowMapResolutionChanged(int resolution);
	void clampingChanged(Float clamping);
	void exposureChanged(Float exposure);
	void gammaChanged(bool srgb, Float gamma);
	void previewMethodChanged(EPreviewMethod method);
	void toneMappingMethodChanged(EToneMappingMethod method);
	void reinhardKeyChanged(Float key);
	void reinhardBurnChanged(Float burn);
	void diffuseReceiversChanged(bool);
	void diffuseSourcesChanged(bool);

protected slots:
	void on_pathLengthSlider_valueChanged(int value);
	void on_clampingSlider_valueChanged(int value);
	void on_shadowResolutionCombo_activated(int index);
	void on_exposureSlider_valueChanged(int value);
	void on_exposureSpinBox_valueChanged(double value);
	void on_gammaSpinBox_valueChanged(double value);
	void on_sRGBCheckBox_stateChanged(int state);
	void on_diffuseReceiversBox_stateChanged(int state);
	void on_diffuseSourcesBox_stateChanged(int state);
	void on_resetButton_clicked();
	void on_previewMethodCombo_activated(int index);
	void on_toneMappingMethodCombo_activated(int index);
	void on_keySlider_valueChanged(int value);

protected:
    void changeEvent(QEvent *e);

private:
	Ui::PreviewSettingsDialog *ui;
	bool m_ignoreEvent;
	SceneContext *m_context;
};

#endif // __PREVIEWSETTINGSDLG_H