Reworked the way project saving is presented to users.

git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@1907 bfdf4180-ca20-0410-9c96-a3a8aa849046

sources/closediagramsdialog.h

@@ -0,0 +1,92 @@
+/*
+	Copyright 2006-2012 Xavier Guerrin
+	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 CLOSE_DIAGRAMS_DIALOG_H
+#define CLOSE_DIAGRAMS_DIALOG_H
+#include <QDialog>
+#include <QSignalMapper>
+class QAbstractButton;
+class QDialogButtonBox;
+class QCheckBox;
+class QLabel;
+class QPushButton;
+class Diagram;
+class QGridLayout;
+class QScrollArea;
+
+/**
+	This class represents a dialog asking users whether they want to save
+	their modified project when it is being closed and what they wish to save
+	in it.
+*/
+class CloseDiagramsDialog : public QDialog {
+	Q_OBJECT
+	public:
+	enum Actions {
+		Unknown,
+		Save,
+		DoNotSave,
+		Remove
+	};
+	
+	// Constructors, destructor
+	public:
+	CloseDiagramsDialog(const QList<Diagram *> &diagrams, QWidget *parent = 0);
+	virtual ~CloseDiagramsDialog();
+	private:
+	CloseDiagramsDialog(const CloseDiagramsDialog &);
+	
+	// methods
+	public:
+	int answer() const;
+	int actionForDiagram(Diagram *);
+	QList<Diagram *> diagramsByAction(Actions);
+	
+	private:
+	void initWidgets();
+	void initLayout();
+	void loadDiagramsList();
+	void addDiagram(Diagram *, int);
+	QCheckBox *getCheckBoxForDiagram(Diagram *);
+	QString diagramTitle(Diagram *);
+	QString diagramStatus(Diagram *);
+	QString diagramAction(Diagram *);
+	
+	signals:
+	void showDiagram(Diagram *);
+	
+	private slots:
+	void lambdaCheckBoxChangedState(int);
+	void topCheckBoxChangedState(int);
+	void setCheckedAll(bool);
+	void requireShowDiagram(int);
+	void storeAnswer(QAbstractButton *);
+	
+	// attributes
+	private:
+	QList<Diagram *> diagrams_list_;     ///< List of (modified or newly added) diagrams displayed by the dialog
+	QLabel *informative_label1_;         ///< Informative label when there are modified diagrams
+	QLabel *informative_label2_;         ///< Informative label when there is no modified diagram
+	QCheckBox *all_checkbox_;            ///< Header checkbox to check/uncheck all other checkboxes
+	QScrollArea *diagrams_list_area_;    ///< Scroll area to make the diagrams visual list fit in the dialog
+	QWidget *diagrams_list_widget_;      ///< Scrolled widget
+	QGridLayout *diagrams_list_layout_;  ///< Layout used to list diagrams
+	QDialogButtonBox *buttons_;          ///< Buttons for users to input their final choice
+	int answer_;                         ///< Reflects the user answer once the diagram has been executed
+	QSignalMapper show_mapper_;          ///< Signal mapper for the "show diagram" buttons to work
+};
+#endif