| // SPDX-License-Identifier: LGPL-2.1-or-later | |
| /**************************************************************************** | |
| * * | |
| * Copyright (c) 2024 xtemp09 <xtemp09@gmail.com> * | |
| * * | |
| * This file is part of FreeCAD. * | |
| * * | |
| * FreeCAD 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 2.1 of the * | |
| * License, or (at your option) any later version. * | |
| * * | |
| * FreeCAD 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 * | |
| * Lesser General Public License for more details. * | |
| * * | |
| * You should have received a copy of the GNU Lesser General Public * | |
| * License along with FreeCAD. If not, see * | |
| * <https://www.gnu.org/licenses/>. * | |
| * * | |
| ***************************************************************************/ | |
| namespace SpreadsheetGui | |
| { | |
| class SheetTableView; | |
| } | |
| class ZoomableView: public QGraphicsView | |
| { | |
| Q_OBJECT | |
| Q_PROPERTY(int zoomLevel READ zoomLevel() WRITE setZoomLevel NOTIFY zoomLevelChanged) | |
| public: | |
| /*! | |
| * \brief A descendant of QGraphicsView to show a SheetTableView object in its viewport, | |
| * allowing magnification. \param ui \details The object replaces SheetTableView in layout, | |
| * handling mouse and keyboard events. | |
| */ | |
| explicit ZoomableView(Ui::Sheet* ui); | |
| ~ZoomableView() override = default; | |
| int zoomLevel() const; | |
| void setZoomLevel(int new_scale); | |
| static constexpr int min {60}, max {160}; | |
| static void checkLimits(int& zoom_level); | |
| Q_SIGNALS: | |
| void zoomLevelChanged(int); /// This signal is emitted whenever zoom level is changed. It is | |
| /// used to show the zoom level in the zoom button. | |
| public Q_SLOTS: | |
| void zoomIn(void); /// This function is the slot for the zoomIn button and a keyboard shortcut | |
| void zoomOut(void); /// This function is the slot for the zoomOut button and a keyboard shortcut | |
| void resetZoom(void); /// This function is the slot for a keyboard shortcut | |
| private: | |
| void updateView(void); | |
| QPointer<SpreadsheetGui::SheetTableView> stv; | |
| QGraphicsScene m_scene; | |
| QGraphicsProxyWidget* qpw {nullptr}; | |
| int m_zoomLevel {0}; | |
| protected: | |
| void focusOutEvent(QFocusEvent* event) override; | |
| void keyPressEvent(QKeyEvent* event) override; | |
| void resizeEvent(QResizeEvent* event) override; | |
| void wheelEvent(QWheelEvent* event) override; | |
| static constexpr int zoom_step_mwheel {5}, zoom_step_kb {10}; | |
| }; | |