#ifndef CAMERASETTINGSWIDGET_H
#define CAMERASETTINGSWIDGET_H

#ifdef _WIN32
#pragma warning(disable : 4251)
#endif

#include "tcommon.h"
#include "tgeometry.h"

#undef DVAPI
#undef DVVAR
#ifdef TOONZQT_EXPORTS
#define DVAPI DV_EXPORT_API
#define DVVAR DV_EXPORT_VAR
#else
#define DVAPI DV_IMPORT_API
#define DVVAR DV_IMPORT_VAR
#endif

#include <QFrame>
#include <QPushButton>
#include <QValidator>
#include <QLineEdit>

class TCamera;
class QRadioButton;
class QComboBox;
class ResListManager;
class TFilePath;
class TXshSimpleLevel;
class TXshLevel;

namespace DVGui
{
class LineEdit;
class DoubleLineEdit;
class IntLineEdit;
class MeasuredDoubleLineEdit;
class CheckBox;
}

//---------------------------------------------------------------

class SimpleExpValidator : public QValidator
{
public:
	SimpleExpValidator(QObject *parent) : QValidator(parent){};
	State validate(QString &input, int &pos) const;
};

//---------------------------------------------------------------
// for A/R input field
class SimpleExpField : public QLineEdit
{
	SimpleExpValidator *m_validator;
	QString m_previousValue;

public:
	SimpleExpField(QWidget *parent);

	void setValue(double);
	void setValue(double, int, int);
	double getValue();

protected:
	void focusInEvent(QFocusEvent *event);
	void focusOutEvent(QFocusEvent *event);
};

//---------------------------------------------------------------

class DVAPI CameraSettingsWidget : public QFrame
{
	Q_OBJECT

	bool m_forCleanup;

	QRadioButton *m_xPrev, *m_yPrev, *m_arPrev;
	QRadioButton *m_inchPrev, *m_dotPrev;

	DVGui::MeasuredDoubleLineEdit *m_lxFld, *m_lyFld;
	SimpleExpField *m_arFld;
	double m_arValue;
	DVGui::IntLineEdit *m_xResFld, *m_yResFld;
	DVGui::DoubleLineEdit *m_xDpiFld, *m_yDpiFld;

	QPushButton *m_fspChk; // Force Squared Pixel => dpix == dpiy

	QPushButton *m_useLevelSettingsBtn;
	QComboBox *m_presetListOm;
	QPushButton *m_addPresetBtn, *m_removePresetBtn;

	DVGui::MeasuredDoubleLineEdit *m_offsX, *m_offsY;

	QString m_presetListFile;

	// needed by "use level settings"
	TXshSimpleLevel *m_currentLevel;

	void savePresetList();
	void loadPresetList();
	bool parsePresetString(const QString &str, QString &name, int &xres, int &yres, QString &ar);

	bool parsePresetString(const QString &str,
						   QString &name,
						   int &xres,
						   int &yres,
						   double &fx,
						   double &fy,
						   QString &xoffset,
						   QString &yoffset,
						   double &ar,
						   bool forCleanup = false);

public:
	CameraSettingsWidget(bool forCleanup = false);
	~CameraSettingsWidget();

	void setPresetListFile(const TFilePath &fp);

	// Defines the level referred by the button "Use level settings".
	// Calling setCurrentLevel(0) disables the button
	void setCurrentLevel(TXshLevel *);

	// camera => widget fields (i.e. initialize widget)
	void setFields(const TCamera *camera);

	// widget fields => camera
	void getFields(TCamera *camera);

	QSize sizeHint() const { return minimumSize(); }

	// The aspect ratio can be expressed as a fraction (e.g. "4/3")
	// The following methods convert code/decode the value
	static double aspectRatioStringToValue(const QString &s);
	/*--- カメラの縦横ピクセル値を入力できるようにし、valueがX/Yの値に近かったら、"X/Y"と表示する ---*/
	static QString aspectRatioValueToString(double ar, int width = 0, int height = 0);

	// the current camera dimension (in inches)
	TDimensionD getSize() const;

	// the current camera resolution (in pixels)
	TDimension getRes() const;

	/*--- cleanupCameraSettingsWidgetからポインタを受け取る ---*/
	void setOffsetWidgetPointers(DVGui::MeasuredDoubleLineEdit *offsX, DVGui::MeasuredDoubleLineEdit *offsY)
	{
		m_offsX = offsX;
		m_offsY = offsY;
	}

protected:
	bool eventFilter(QObject *obj, QEvent *e);

	void hComputeLx();
	void hComputeLy();
	void vComputeLx();
	void vComputeLy();
	void computeAr();
	void computeXRes();
	void computeYRes();
	void computeXDpi();
	void computeYDpi();
	void computeResOrDpi();

	void updatePresetListOm();

	void setArFld(double ar);

protected slots:
	void onLxChanged();
	void onLyChanged();
	void onArChanged();
	void onXResChanged();
	void onYResChanged();
	void onXDpiChanged();
	void onYDpiChanged();
	void onFspChanged(bool checked);
	void onPrevToggled(bool checked);
	void onPresetSelected(const QString &);
	void addPreset();
	void removePreset();
	void useLevelSettings();

signals:
	void changed();			  // some value has been changed
	void levelSettingsUsed(); // the "Use level settings" button has been pressed.
							  // Note: a changed() signal is always emitted after levelSettingsUsed()
};

#endif