Mercurial > octave
view libgui/graphics/Canvas.h @ 31649:deb553ac2c54
maint: Merge stable to default.
author | John W. Eaton <jwe@octave.org> |
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date | Tue, 06 Dec 2022 15:45:27 -0500 |
parents | 431f80aba37a 29d734430e5f |
children | 5f11de0e7440 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 2011-2022 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_Canvas_h) #define octave_Canvas_h 1 #include <QObject> #include <QPoint> #include "event-manager.h" #include "graphics.h" #include "Figure.h" class QKeyEvent; class QMouseEvent; class QWheelEvent; class QWidget; class octave_value_list; OCTAVE_BEGIN_NAMESPACE(octave) class interpreter; class Canvas : public QObject { Q_OBJECT public: enum EventMask { KeyPress = 0x01, KeyRelease = 0x02 }; public: virtual ~Canvas (void) = default; void redraw (bool sync = false); void blockRedraw (bool block = true); void print (const QString& file_cmd, const QString& term) { do_print (file_cmd, term, m_handle); } void addEventMask (int m) { m_eventMask |= m; } void clearEventMask (int m) { m_eventMask &= (~m); } void setEventMask (int m) { m_eventMask = m; } void setCursor (MouseMode mode, std::string fallback, QImage cdata, Matrix hotspot); virtual QWidget * qWidget (void) = 0; static Canvas * create (octave::interpreter& interp, const graphics_handle& handle, QWidget *parent, const std::string& name); virtual uint8NDArray getPixels (void) { return do_getPixels (m_handle); }; 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); protected: virtual void draw (const graphics_handle& handle) = 0; virtual void drawZoomBox (const QPoint& p1, const QPoint& p2) = 0; virtual void resize (int x, int y, int width, int height) = 0; virtual graphics_object selectFromAxes (const graphics_object& ax, const QPoint& pt) = 0; virtual uint8NDArray do_getPixels (const graphics_handle& handle) = 0; virtual void do_print (const QString& file_cmd, const QString& term, const graphics_handle& handle) = 0; protected: Canvas (octave::interpreter& interp, const graphics_handle& handle) : m_interpreter (interp), m_handle (handle), m_redrawBlocked (false), m_mouseMode (NoMode), m_clickMode (false), m_eventMask (0), m_rectMode (false) { } void canvasToggleAxes (const graphics_handle& handle); void canvasToggleGrid (const graphics_handle& handle); void canvasAutoAxes (const graphics_handle& handle); void canvasPaintEvent (void); void canvasMouseDoubleClickEvent (QMouseEvent *event); void canvasMouseMoveEvent (QMouseEvent *event); void canvasMousePressEvent (QMouseEvent *event); void canvasMouseReleaseEvent (QMouseEvent *event); void canvasWheelEvent (QWheelEvent *event); bool canvasKeyPressEvent (QKeyEvent *event); bool canvasKeyReleaseEvent (QKeyEvent *event); void updateCurrentPoint (const graphics_object& fig, const graphics_object& obj, QMouseEvent *event); void updateCurrentPoint (const graphics_object& fig, const graphics_object& obj); void select_object (graphics_object obj, QMouseEvent *event, graphics_object& currentObj, graphics_object& axesObj, bool axes_only = false, std::vector<std::string> omit = std::vector<std::string> ()); protected: octave::interpreter& m_interpreter; private: QCursor make_cursor (const QString& name, int hot_x = -1, int hot_y = -1); graphics_handle m_handle; bool m_redrawBlocked; MouseMode m_mouseMode; bool m_clickMode; // True: ZoomIn, False: ZoomOut QPoint m_mouseAnchor; QPoint m_mouseCurrent; graphics_handle m_mouseAxes; int m_eventMask; bool m_rectMode; }; OCTAVE_END_NAMESPACE(octave) #endif