Mercurial > octave
view libgui/graphics/Object.h @ 31707:5f11de0e7440
maint: Merge stable to default.
author | John W. Eaton <jwe@octave.org> |
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date | Fri, 06 Jan 2023 13:12:14 -0500 |
parents | deb553ac2c54 597f3ee61a48 |
children | 21f9b34eb893 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 2011-2023 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // This file is part of Octave. // // Octave 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. // // Octave 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 Octave; see the file COPYING. If not, see // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// #if ! defined (octave_Object_h) #define octave_Object_h 1 #include <QObject> #include "event-manager.h" #include "graphics.h" class QObject; class QString; class QWidget; OCTAVE_BEGIN_NAMESPACE(octave) class interpreter; class Container; class ObjectProxy; class Object : public QObject { Q_OBJECT public: Object (octave::interpreter& interp, const graphics_object& go, QObject *obj = nullptr); virtual ~Object (void); base_properties& properties (void) { return object ().get_properties (); } const base_properties& properties (void) const { return object ().get_properties (); } template <typename T> typename T::properties& properties (void) { return dynamic_cast<typename T::properties&> (object ().get_properties ()); } template <typename T> const typename T::properties& properties (void) const { return dynamic_cast<const typename T::properties&> (object ().get_properties ()); } graphics_object object (void) const; virtual QObject * qObject (void) { return m_qobject; } template <typename T> T * qWidget (void) { return qobject_cast<T *>(qObject ()); } virtual Container * innerContainer (void) = 0; static Object * fromQObject (QObject *obj); virtual void do_connections (const QObject *receiver, const QObject *emitter = nullptr); signals: void interpreter_event (const octave::fcn_callback& fcn); void interpreter_event (const octave::meth_callback& meth); void gh_callback_event (const graphics_handle& h, const std::string& name); void gh_callback_event (const graphics_handle& h, const std::string& name, const octave_value& data); void gh_set_event (const graphics_handle& h, const std::string& name, const octave_value& value); void gh_set_event (const graphics_handle& h, const std::string& name, const octave_value& value, bool notify_toolkit); void gh_set_event (const graphics_handle& h, const std::string& name, const octave_value& value, bool notify_toolkit, bool redraw_figure); public slots: void slotUpdate (int pId); void slotFinalize (void); void slotRedraw (void); void slotShow (void); void slotPrint (const QString& file_cmd, const QString& term); void objectDestroyed (QObject *obj = nullptr); protected: static Object * parentObject (octave::interpreter& interp, const graphics_object& go); void init (QObject *obj, bool callBase = false); virtual void update (int pId); virtual void finalize (void); virtual void redraw (void); virtual void show (void); virtual void print (const QString& file_cmd, const QString& term); virtual void beingDeleted (void); protected: octave::interpreter& m_interpreter; // Store the graphics object directly so that it will exist when // we need it. Previously, it was possible for the graphics // toolkit to get a handle to a figure, then have the interpreter // thread delete the corresponding object before the graphics // toolkit (GUI) thread had a chance to display it. It should be OK // to store this object and use it in both threads (graphics_object // uses a std::shared_ptr) provided that we protect access with // mutex locks. graphics_object m_go; // Handle to the graphics object. This may be redundant now. // Also, the whole ObjectProxy thing may not need to store a // pointer now? Maybe we can just have a lookup table from figure // handle to Object? What does the FLTK toolkit do? Why does // this seem to be so complicated? graphics_handle m_handle; QObject *m_qobject; }; OCTAVE_END_NAMESPACE(octave) #endif