/*
	Copyright 2006-2016 The QElectroTech Team
	This file is part of QElectroTech.

	QElectroTech 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.

	QElectroTech 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 QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PROJECT_VIEW_H
#define PROJECT_VIEW_H
#include <QtWidgets>
#include "templatelocation.h"
#include "qetresult.h"
class QETProject;
class DiagramView;
class Diagram;
class ElementsLocation;
class QTabWidget;
/**
	This class provides a widget displaying the diagrams of a particular
	project using tabs.
*/
class ProjectView : public QWidget {
	Q_OBJECT

	public:
	enum ProjectSaveOption {
		CurrentDiagram = 2,
		AllDiagramsButCurrent = 4,
		AllDiagrams = 6
	};
	Q_DECLARE_FLAGS(ProjectSaveOptions, ProjectSaveOption)


	// constructors, destructor
	public:
	ProjectView(QETProject *, QWidget * = 0);
	virtual ~ProjectView();
	private:
	ProjectView(const ProjectView &);

	// methods
	public:
	QETProject *project();
	void setProject(QETProject *);
	QList<DiagramView *> diagrams() const;
	QList<Diagram *> getDiagrams(ProjectSaveOptions options);
	DiagramView *currentDiagram() const;
	void closeEvent(QCloseEvent *);
	void changeTabUp();
	void changeTabDown();
	void changeFirstTab();
	void changeLastTab();

	public slots:
	void addNewDiagram();
	void addNewDiagramFolioList();
	void addDiagram(DiagramView *);
	void removeDiagram(DiagramView *);
	void removeDiagram(Diagram *);
	void showDiagram(DiagramView *);
	void showDiagram(Diagram *);
	void editProjectProperties();
	void editCurrentDiagramProperties();
	void editDiagramProperties(DiagramView *);
	void editDiagramProperties(Diagram *);
	void moveDiagramUp(DiagramView *);
	void moveDiagramUp(Diagram *);
	void moveDiagramDown(DiagramView *);
	void moveDiagramDown(Diagram *);
	void moveDiagramUpTop(DiagramView *);
	void moveDiagramUpTop(Diagram *);
	void moveDiagramUpx10(DiagramView *);
	void moveDiagramUpx10(Diagram *);
	void moveDiagramDownx10(DiagramView *);
	void moveDiagramDownx10(Diagram *);
	void printProject();
	void exportProject();
	QETResult save();
	QETResult saveAs(ProjectSaveOptions = ProjectSaveOptions(AllDiagrams));
	QETResult doSave(ProjectSaveOptions);
	void saveDiagrams(const QList<Diagram *> &);
	int cleanProject();
	void updateWindowTitle();
	void updateTabTitle(DiagramView *, const QString &);
	void tabMoved(int, int);
	void editTitleBlockTemplateRequired(const QString &, bool);

	signals:
	void diagramAdded(DiagramView *);
	void diagramRemoved(DiagramView *);
	void diagramActivated(DiagramView *);
	void diagramOrderChanged(ProjectView *, int, int);
	void projectClosed(ProjectView *);
	void errorEncountered(const QString &);
	// relayed signals
	void findElementRequired(const ElementsLocation &);
	void editElementRequired(const ElementsLocation &);
	void editTitleBlockTemplate(const TitleBlockTemplateLocation &, bool);

	private:
	void initActions();
	void initWidgets();
	void initLayout();
	void loadDiagrams();
	DiagramView *findDiagram(Diagram *);
	DiagramView *nextDiagram();
	DiagramView *previousDiagram();
	DiagramView *firstDiagram();
	DiagramView *lastDiagram();
	void rebuildDiagramsMap();
	bool tryClosing();
	bool tryClosingElementEditors();
	int tryClosingDiagrams();
	QString askUserForFilePath(bool = true);
	QETResult noProjectResult() const;

	private slots:
	void tabChanged(int);
	void tabDoubleClicked(int);
	void setDisplayFallbackWidget(bool);
	void adjustReadOnlyState();

	// attributes
	private:
	QAction *add_new_diagram_;
	QETProject *project_;
	QVBoxLayout *layout_;
	QWidget *fallback_widget_;
	QLabel *fallback_label_;
	QTabWidget *m_tab;
	QMap<int, DiagramView *> diagram_ids_;
	QList<DiagramView *> diagrams_;
};
Q_DECLARE_OPERATORS_FOR_FLAGS(ProjectView::ProjectSaveOptions)
#endif