umllistview.h

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/*
    SPDX-License-Identifier: GPL-2.0-or-later
    SPDX-FileCopyrightText: 2002-2021 Umbrello UML Modeller Authors <umbrello-devel@kde.org>
*/
 
#ifndef UMLLISTVIEW_H
#define UMLLISTVIEW_H
 
#include "basictypes.h"
#include "umllistviewitem.h"
#include "umllistviewitemlist.h"
#include "icon_utils.h"
#include "umlobject.h"
 
#include <QDomDocument>
#include <QDomElement>
#include <QTreeWidget>
#include <QTreeWidgetItem>
#include <QXmlStreamWriter>
 
class QEvent;
class QMouseEvent;
class QFocusEvent;
class QKeyEvent;
class QDropEvent;
class UMLClassifier;
class UMLDoc;
class UMLView;
class UMLClassifierListItem;
class UMLDragData;
 
class UMLListView : public QTreeWidget
{
    Q_OBJECT
public:
    explicit UMLListView(QWidget  *parent = nullptr);
    ~UMLListView();
 
    void setDocument(UMLDoc * doc);
    UMLDoc * document() const;
 
    void init();
    void clean();
 
    void setView(UMLView* view);
 
    void setTitle(int column, const QString &text);
 
    UMLListViewItemList selectedItems() const;
    UMLListViewItemList selectedItemsRoot() const;
    int selectedItemsCount() const;
 
    UMLListViewItem* createDiagramItem(UMLView *view);
 
    bool createItem(UMLListViewItem *item);
 
    UMLListViewItem* findFolderForDiagram(Uml::DiagramType::Enum dt) const;
 
    UMLListViewItem* determineParentItem(UMLObject* object) const;
    UMLListViewItem* determineParentItem(UMLListViewItem::ListViewType lvt) const;
 
    static bool mayHaveChildItems(UMLObject::ObjectType type);
 
    void addNewItem(UMLListViewItem * parent, UMLListViewItem::ListViewType type);
 
    UMLListViewItem * findUMLObject(const UMLObject *p) const;
    UMLListViewItem * findView(UMLView *v);
    UMLListViewItem * findItem(Uml::ID::Type id);
 
    UMLListViewItem *rootView(UMLListViewItem::ListViewType type);
 
    void changeIconOf(UMLObject *o, Icon_Utils::IconType to);
 
    bool isUnique(UMLListViewItem * item, const QString &name) const;
 
    void setStartedCut(bool startedCut);
    void setStartedCopy(bool startedCopy);
    bool startedCopy() const;
 
    UMLListViewItem * moveObject(Uml::ID::Type srcId, UMLListViewItem::ListViewType srcType,
                                 UMLListViewItem *newParent);
 
    void closeDatatypesFolder();
 
    UMLListViewItem *theRootView() { return m_rv; }
    UMLListViewItem *theLogicalView() { return m_lv[Uml::ModelType::Logical]; }
    UMLListViewItem *theUseCaseView() { return m_lv[Uml::ModelType::UseCase]; }
    UMLListViewItem *theComponentView() { return m_lv[Uml::ModelType::Component]; }
    UMLListViewItem *theDeploymentView() { return m_lv[Uml::ModelType::Deployment]; }
    UMLListViewItem *theDatatypeFolder() { return m_datatypeFolder; }
 
    UMLListViewItem::ListViewType rootViewType(UMLListViewItem *item);
 
    void saveToXMI(QXmlStreamWriter& writer);
    bool loadFromXMI(QDomElement & element);
    bool loadChildrenFromXMI(UMLListViewItem * parent, QDomElement & element);
 
    friend QDebug operator<<(QDebug out, const UMLListView& view);
 
protected:
    bool event(QEvent *e);
    void mouseReleaseEvent(QMouseEvent *me);
    void mousePressEvent(QMouseEvent *me);
    void mouseMoveEvent(QMouseEvent *me);
    void mouseDoubleClickEvent(QMouseEvent *me);
    void focusOutEvent (QFocusEvent *fe);
    void contextMenuEvent(QContextMenuEvent *event);
    UMLDragData* getDragData();
 
    bool acceptDrag(QDropEvent* event) const;
    void keyPressEvent(QKeyEvent* ke);
    void dragEnterEvent(QDragEnterEvent* event);
    void dragMoveEvent(QDragMoveEvent* event);
    void dropEvent(QDropEvent* event);
    void commitData(QWidget *editor);
 
    UMLListViewItem * findUMLObjectInFolder(UMLListViewItem *folder, UMLObject *obj);
 
    static bool isExpandable(UMLListViewItem::ListViewType lvt);
 
    void deleteChildrenOf(UMLListViewItem *parent);
 
    bool deleteItem(UMLListViewItem *temp);
 
    void childObjectAdded(UMLClassifierListItem* child, UMLClassifier* parent);
 
    void addAtContainer(UMLListViewItem *item, UMLListViewItem *parent);
 
public Q_SLOTS:
    void slotDiagramCreated(Uml::ID::Type id);
    void slotDiagramRenamed(Uml::ID::Type id);
    void slotDiagramRemoved(Uml::ID::Type id);
    void slotObjectCreated(UMLObject* object);
    void slotObjectRemoved(UMLObject* object);
 
    void connectNewObjectsSlots(UMLObject* object);
 
    void childObjectAdded(UMLClassifierListItem* obj);
    void childObjectRemoved(UMLClassifierListItem* obj);
 
    void slotObjectChanged();
 
    void slotMenuSelection(QAction* action, const QPoint &position = QPoint());
 
    void slotDropped(QDropEvent* de, UMLListViewItem* target);
 
    void expandAll(UMLListViewItem *item);
    void collapseAll(UMLListViewItem *item);
 
    void slotCutSuccessful();
    void slotDeleteSelectedItems();
 
protected Q_SLOTS:
    void slotItemSelectionChanged();
    void slotExpanded(QTreeWidgetItem* item);
    void slotCollapsed(QTreeWidgetItem* item);
 
private:
    UMLListViewItem* recursiveSearchForView(UMLListViewItem* folder,
                                            UMLListViewItem::ListViewType type, Uml::ID::Type id);
 
    void setBackgroundColor(const QColor & color);
 
    UMLListViewItem* m_rv;         
    UMLListViewItem* m_lv[Uml::ModelType::N_MODELTYPES];  
    UMLListViewItem* m_datatypeFolder;
    UMLListViewItem* m_settingsFolder; 
    UMLDoc*          m_doc;
    bool             m_bStartedCut;
    bool             m_bStartedCopy;
    bool m_bCreatingChildObject;  
    QPoint m_dragStartPosition;
    QMimeData* m_dragCopyData;
    QList<QTreeWidgetItem*> m_findItems;
};
 
#endif