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69f239d197
DVEventInterface :this abstract class is used by diagram view to manage is event action (mouse event). For add new action to diagram view, we must to create subclass of DVEventInterface and give it to diagram view, when diagram view get the new dvevent, they manage it, and delete it when action is finish. git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@3329 bfdf4180-ca20-0410-9c96-a3a8aa849046
165 lines
5.1 KiB
C++
165 lines
5.1 KiB
C++
/*
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Copyright 2006-2014 The QElectroTech Team
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This file is part of QElectroTech.
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QElectroTech is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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QElectroTech is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef DIAGRAMVIEW_H
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#define DIAGRAMVIEW_H
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#include <QtGui>
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#include "elementslocation.h"
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#include "templatelocation.h"
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class Conductor;
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class Diagram;
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class QETDiagramEditor;
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class DVEventInterface;
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/**
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This class provides a widget to render an electric diagram in an editable,
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interactive way.
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*/
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class DiagramView : public QGraphicsView {
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Q_OBJECT
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// constructors, destructor
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public:
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DiagramView(Diagram * = 0, QWidget * = 0);
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virtual ~DiagramView();
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private:
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DiagramView(const DiagramView &);
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// attributes
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private:
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Diagram *scene;
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QMenu *context_menu;
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QAction *paste_here;
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QAction *find_element_;
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QPoint paste_here_pos;
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bool fresh_focus_in_; ///< Indicate the focus was freshly gained
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ElementsLocation next_location_;
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QPoint next_position_;
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QPointF center_view_;
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QPointF rubber_band_origin;
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DVEventInterface *m_event_interface;
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// methods
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public:
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QString title() const;
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void editDiagramProperties();
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void addColumn();
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void removeColumn();
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void addRow();
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void removeRow();
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/// @return the diagram rendered by this view
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Diagram *diagram() { return(scene); }
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QETDiagramEditor *diagramEditor() const;
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bool hasSelectedItems();
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bool hasCopiableItems();
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bool hasDeletableItems();
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void addText();
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void editText();
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void editImage();
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void editShape();
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void setEventInterface (DVEventInterface *interface);
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protected:
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virtual void mouseDoubleClickEvent(QMouseEvent *);
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virtual void contextMenuEvent(QContextMenuEvent *);
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virtual void wheelEvent(QWheelEvent *);
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virtual void focusInEvent(QFocusEvent *);
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virtual void keyPressEvent(QKeyEvent *);
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virtual void keyReleaseEvent(QKeyEvent *);
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virtual bool event(QEvent *);
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virtual bool switchToVisualisationModeIfNeeded(QInputEvent *e);
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virtual bool switchToSelectionModeIfNeeded(QInputEvent *e);
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virtual bool isCtrlShifting(QInputEvent *);
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virtual bool selectedItemHasFocus();
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private:
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void mousePressEvent(QMouseEvent *);
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void mouseMoveEvent(QMouseEvent *);
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void mouseReleaseEvent(QMouseEvent *);
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void dragEnterEvent(QDragEnterEvent *);
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void dragLeaveEvent(QDragLeaveEvent *);
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void dragMoveEvent(QDragMoveEvent *);
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void dropEvent(QDropEvent *);
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void handleElementDrop(QDropEvent *);
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void handleTitleBlockDrop(QDropEvent *);
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void handleTextDrop(QDropEvent *);
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bool gestureEvent(QGestureEvent *event);
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QRectF viewedSceneRect() const;
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bool mustIntegrateElement(const ElementsLocation &) const;
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bool mustIntegrateTitleBlockTemplate(const TitleBlockTemplateLocation &) const;
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bool addElementAtPos(const ElementsLocation &, const QPoint &);
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bool gestures() const;
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signals:
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/// Signal emitted after the selection changed
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void selectionChanged();
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/// Signal emitted after the selection mode changed
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void modeChanged();
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/// Signal emitted after the diagram title changed
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void titleChanged(DiagramView *, const QString &);
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/// Signal emitted before integrating an element
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void aboutToAddElement();
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/// Signal emitted before integrating a title block template
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void aboutToSetDroppedTitleBlockTemplate(const TitleBlockTemplateLocation &);
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/// Signal emitted when users wish to locate an element from the diagram within elements collection
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void findElementRequired(const ElementsLocation &);
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/// Signal emitted when users wish to edit an element from the diagram
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void editElementRequired(const ElementsLocation &);
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/// Signal emitted when users want to edit and/or duplicate an existing title block template
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void editTitleBlockTemplate(const QString &, bool);
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/// Signal emitted after an item is added
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void itemAdded();
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/// Signal emmitted when diagram must be show
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void showDiagram (Diagram *);
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public slots:
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void selectNothing();
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void selectAll();
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void selectInvert();
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void deleteSelection();
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void rotateSelection();
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void rotateTexts();
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void setVisualisationMode();
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void setSelectionMode();
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void zoomIn();
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void zoomOut();
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void zoomInSlowly();
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void zoomOutSlowly();
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void zoomFit();
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void zoomContent();
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void zoomReset();
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void cut();
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void copy();
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void paste(const QPointF & = QPointF(), QClipboard::Mode = QClipboard::Clipboard);
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void pasteHere();
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void adjustSceneRect();
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void updateWindowTitle();
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void editSelectionProperties();
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void editSelectedConductorColor();
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void editConductorColor(Conductor *);
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void resetConductors();
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private slots:
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void addDroppedElement();
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void setDroppedTitleBlockTemplate(const TitleBlockTemplateLocation &);
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void adjustGridToZoom();
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void applyReadOnly();
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};
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#endif
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