/***************************************************************************
 *   This file is part of the Lime Report project                          *
 *   Copyright (C) 2021 by Alexander Arin                                  *
 *   arin_a@bk.ru                                                          *
 *                                                                         *
 **                   GNU General Public License Usage                    **
 *                                                                         *
 *   This library 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 3 of the License, or     *
 *   (at your option) any later version.                                   *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
 *                                                                         *
 **                  GNU Lesser General Public License                    **
 *                                                                         *
 *   This library is free software: you can redistribute it and/or modify  *
 *   it under the terms of the GNU Lesser General Public License as        *
 *   published by the Free Software Foundation, either version 3 of the    *
 *   License, or (at your option) any later version.                       *
 *   You should have received a copy of the GNU Lesser General Public      *
 *   License along with this library.                                      *
 *   If not, see <http://www.gnu.org/licenses/>.                           *
 *                                                                         *
 *   This library 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.                          *
 ****************************************************************************/
#ifndef LRREPORTDESIGNWIDGET_H
#define LRREPORTDESIGNWIDGET_H

#include "lrcollection.h"
#include "lrdatadesignintf.h"
#include "lrdatasourcemanager.h"
#include "lrgraphicsviewzoom.h"
#include "lrpagedesignintf.h"
#include "lrreportengine_p.h"

#include <QGraphicsView>
#include <QMainWindow>
#include <QObject>
#include <QTextEdit>

#if QT_VERSION < 0x050000
QT_BEGIN_NAMESPACE
class LimeReportTabWidget: public QTabWidget {
    Q_OBJECT
public:
    explicit LimeReportTabWidget(QWidget* parent = 0): QTabWidget(parent) { }
    QTabBar* tabBar() const { return QTabWidget::tabBar(); }
};
QT_END_NAMESPACE
#endif

namespace LimeReport {

class ReportEnginePrivate;
class DataBrowser;
class ReportDesignWindow;
class DialogDesignerManager;
class DialogDesigner;
class TranslationEditor;
class ScriptEditor;

class Ruler: public QWidget {
public:
    enum RulerType {
        Horizontal,
        Vertical
    };
    Ruler(RulerType type, QWidget* parent = 0): QWidget(parent), m_page(0), m_type(type) { }
    void setPage(PageItemDesignIntf* page);
    void setMousePos(QPoint mousePos) { m_mousePos = mousePos; }

protected:
    void paintEvent(QPaintEvent* event);
    void drawItemWithChildren(QPainter* painter, BaseDesignIntf* item);
    void drawItem(QPainter* painter, BaseDesignIntf* item);

private:
    PageItemDesignIntf* m_page;
    RulerType m_type;
    QPoint m_mousePos;
};

class PageView: public QGraphicsView {
public:
    PageView(QWidget* parent = NULL):
        QGraphicsView(parent),
        m_horizontalRuller(0),
        m_verticalRuller(0)
    {
        setViewportMargins(20, 20, 0, 0);
    }
    PageView(QGraphicsScene* scene, QWidget* parent = NULL):
        QGraphicsView(scene, parent),
        m_horizontalRuller(0),
        m_verticalRuller(0)
    {
        setViewportMargins(20, 20, 0, 0);
    }
    void setPageItem(PageItemDesignIntf* pageItem);

protected:
    bool viewportEvent(QEvent* event);

private:
    PageItemDesignIntf* m_pageItem;
    Ruler* m_horizontalRuller;
    Ruler* m_verticalRuller;
};

class ReportDesignWidget: public QWidget {
    Q_OBJECT
    Q_PROPERTY(QObject* datasourcesManager READ dataManager)
public:
    enum ToolWindowType {
        WidgetBox = 1,
        ObjectInspector = 2,
        ActionEditor = 3,
        SignalSlotEditor = 4,
        PropertyEditor = 5,
        ResourceEditor = 6
    };
    enum EditorTabType {
        Page,
        Dialog,
        Script,
        Translations,
        TabTypeCount
    };
    ReportDesignWidget(ReportEnginePrivateInterface* report, QSettings* settings,
                       QMainWindow* mainWindow, QWidget* parent = 0);
    ~ReportDesignWidget();
    PageDesignIntf* createStartPage();
    void createTabs();
    void clear();
    DataSourceManager* dataManager();
    ScriptEngineManager* scriptManager();
    ScriptEngineContext* scriptContext();
    void removeDatasource(const QString& datasourceName);
    void addBand(const QString& bandType);
    void addBand(BandDesignIntf::BandsType bandType);
    void startInsertMode(const QString& itemType);
    void startEditMode();
    void updateSize();
    bool isCanUndo();
    bool isCanRedo();
    void deleteItem(QGraphicsItem* item);
    PageDesignIntf* activePage();
    QGraphicsView* activeView();
    QList<QGraphicsItem*> selectedItems();
    QStringList datasourcesNames();
    void scale(qreal sx, qreal sy);
    ReportEnginePrivateInterface* report() { return m_report; }
    QString reportFileName();
    bool isNeedToSave();
    bool emitSaveReport();
    bool emitSaveReportAs();
    bool emitLoadReport();
    void saveState();
    void loadState();
    void applySettings();
    void applyUseGrid();
    bool useGrid() { return m_useGrid; }
    bool useMagnet() const;
    void setUseMagnet(bool useMagnet);
    EditorTabType activeTabType();
#ifdef HAVE_QTDESIGNER_INTEGRATION
    void initDialogDesignerToolBar(QToolBar* toolBar);
    void updateDialogs();
    DialogDesignerManager* dialogDesignerManager() const;
    QString activeDialogName();
    DialogDesigner* activeDialogPage();
    QWidget* toolWindow(ToolWindowType windowType);
#endif
public slots:
    bool saveToFile(const QString&);
    bool save();
    bool loadFromFile(const QString&);
    void deleteSelectedItems();
    void connectPage(PageDesignIntf* page);
    void undo();
    void redo();
    void copy();
    void paste();
    void cut();
    void bringToFront();
    void sendToBack();
    void alignToLeft();
    void alignToRight();
    void alignToVCenter();
    void alignToTop();
    void alignToBottom();
    void alignToHCenter();
    void sameHeight();
    void sameWidth();
    void editLayoutMode(bool value);
    void addHLayout();
    void addVLayout();
    void setFont(const QFont& font);
    void setTextAlign(const bool& horizontalAlign, const Qt::AlignmentFlag& alignment);
    void setBorders(const BaseDesignIntf::BorderLines& borders);
    void setBordersExt(const BaseDesignIntf::BorderLines& border, const double borderWidth,
                       const LimeReport::BaseDesignIntf::BorderStyle style, const QString color);
    void editSetting();
    void setUseGrid(bool value);
    void previewReport();
    void printReport();
    void addPage();
    void deleteCurrentPage();
    void slotPagesLoadFinished();
    void slotDialogDeleted(QString dialogName);
    void lockSelectedItems();
    void unlockSelectedItems();
    void selectOneLevelItems();
#ifdef HAVE_QTDESIGNER_INTEGRATION
    void addNewDialog();
#endif
private slots:
    void slotItemSelected(LimeReport::BaseDesignIntf* item);
    void slotSelectionChanged();
    void slotDatasourceCollectionLoaded(const QString&);
    void slotSceneRectChanged(QRectF);
    void slotCurrentTabChanged(int index);
    void slotReportLoaded();
    void slotScriptTextChanged();
    void slotItemPropertyObjectNameChanged(const QString& oldName, const QString& newName);
#ifdef HAVE_QTDESIGNER_INTEGRATION
    void slotDialogChanged(QString);
    void slotDialogNameChanged(QString oldName, QString newName);
#endif
    void slotPagePropertyObjectNameChanged(const QString& oldValue, const QString& newValue);
    void slotTabMoved(int from, int to);
signals:
    void insertModeStarted();
    void itemInserted(LimeReport::PageDesignIntf*, QPointF, const QString&);
    void itemInsertCanceled(const QString&);
    void itemSelected(LimeReport::BaseDesignIntf* item);
    void itemPropertyChanged(const QString& objectName, const QString& propertyName,
                             const QVariant& oldValue, const QVariant& newValue);
    void multiItemSelected();
    void commandHistoryChanged();
    void cleared();
    void loadFinished();
    void activePageChanged();
    void activePageUpdated(LimeReport::PageDesignIntf*);
    void bandAdded(LimeReport::PageDesignIntf*, LimeReport::BandDesignIntf*);
    void bandDeleted(LimeReport::PageDesignIntf*, LimeReport::BandDesignIntf*);
    void itemAdded(LimeReport::PageDesignIntf*, LimeReport::BaseDesignIntf*);
    void itemDeleted(LimeReport::PageDesignIntf*, LimeReport::BaseDesignIntf*);
    void pageAdded(PageDesignIntf* page);
    void pageDeleted();

protected:
    PageView* createPageView(PageDesignIntf* page);
#ifdef HAVE_QTDESIGNER_INTEGRATION
    void createNewDialogTab(const QString& dialogName, const QByteArray& description);
#endif
private:
    bool eventFilter(QObject* target, QEvent* event);
    void prepareReport();
    void initThemeIfExist(const QString& themeName, const QString& path);

private:
    ReportEnginePrivateInterface* m_report;
    QGraphicsView* m_view;
    ScriptEditor* m_scriptEditor;
    TranslationEditor* m_traslationEditor;
#ifdef HAVE_QTDESIGNER_INTEGRATION
    DialogDesignerManager* m_dialogDesignerManager;
#endif
    QMainWindow* m_mainWindow;
#if QT_VERSION < 0x050000
    LimeReportTabWidget* m_tabWidget;
#else
    QTabWidget* m_tabWidget;
#endif
    GraphicsViewZoomer* m_zoomer;
    QFont m_defaultFont;
    int m_verticalGridStep;
    int m_horizontalGridStep;
    bool m_useGrid;
    bool m_useMagnet;
    bool m_dialogChanged;
    QString m_theme;
    QSettings* m_settings;
    QMap<QString, QString> m_themes;
    QMap<QString, QString> m_localToEng;
    BaseDesignIntf::UnitType m_defaultUnits;
};

} // namespace LimeReport
#endif // LRREPORTDESIGNWIDGET_H