Mercurial > octave
view libgui/graphics/qt-graphics-toolkit.h @ 28229:f3f29e1801fc
When clipping CDATA for icons take data from center of image (bug #58144).
* QtHandlesUtils.cc (makeImageFromCData): Rename x_off, yoff to x_img_off,
y_img_off. Add new variables x_cdat_off, y_cdat_off. When there is a size
mismatch between the source CDATA and the destination QImage, take data from
center of CDATA by using x_cdat_off, y_cdat_off offsets and place in center of
QImage by using x_img_off, y_img_off.
author | Rik <rik@octave.org> |
---|---|
date | Sat, 18 Apr 2020 17:25:55 -0700 |
parents | bd51beb6205e |
children | e4f767de937a |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 2011-2020 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_qt_graphics_toolkit_h) #define octave_qt_graphics_toolkit_h 1 #include <QObject> #include "event-manager.h" #include "graphics.h" namespace octave { class interpreter; class base_qobject; } namespace QtHandles { class Object; class ObjectProxy; class qt_graphics_toolkit : public QObject, public base_graphics_toolkit { Q_OBJECT public: qt_graphics_toolkit (octave::interpreter& interp, octave::base_qobject& oct_qobj); ~qt_graphics_toolkit (void) = default; // The interpreter may call graphics toolkit functions that we // implement here. The Qt GUI that manages these actions runs in a // separate thread. So in order to correctly cross from the // interpreter thread to the GUI thread, these functions should emit // signals (in the interpreter thread) that are handled by slots // that will run in the GUI thread. This design is similar to the // event_manager, interpreter_events, and qt_interpreter_events // classes work to pass messages from the interpreter to the GUI. // // FIXME: currently most of these functions do not emit signals. // They may work because they use locking and the gh_manager class, // but it might be better to use Qt signals and slots. In any case, // we should ensure that they are correctly handling the connection // between the interpreter and GUI threads. bool is_valid (void) const { return true; } void redraw_figure (const graphics_object& h) const; void show_figure (const graphics_object& h) const; void update (const graphics_object& obj, int pId); bool initialize (const graphics_object& obj); void finalize (const graphics_object& obj); void print_figure (const graphics_object& go, const std::string& term, const std::string& file_cmd, const std::string& /*debug_file*/) const; uint8NDArray get_pixels (const graphics_object& go) const; Matrix get_text_extent (const graphics_object& go) const; static Object * toolkitObject (const graphics_object& go); static ObjectProxy * toolkitObjectProxy (const graphics_object& go); signals: void create_object_signal (double handle); public slots: void interpreter_event (const octave::fcn_callback& fcn); void interpreter_event (const octave::meth_callback& meth); void create_object (double handle); 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); private: octave::interpreter& m_interpreter; octave::base_qobject& m_octave_qobj; }; } #endif