Mercurial > octave-nkf
view libgui/graphics/GLCanvas.h @ 20551:79eb0746b21f
Fix segfault when hovering a Qt figure while it's being drawn (bug #45540)
* Canvas.cc (Canvas::canvasMouseMoveEvent): ensure the QtHandles::Figure object is built from a figure object and is non null
* Canvas.cc (Canvas::canvasMouseMoveEvent): add a FIXME note
author | Pantxo Diribarne <pantxo.diribarne@gmail.com> |
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date | Mon, 07 Sep 2015 19:28:29 +0200 |
parents | f0e61a67ad9f |
children |
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/* Copyright (C) 2011-2015 Michael Goffioul 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 <http://www.gnu.org/licenses/>. */ #ifndef __QtHandles_GLCanvas__ #define __QtHandles_GLCanvas__ 1 #include <QGLWidget> #include "Canvas.h" namespace QtHandles { class GLCanvas : public QGLWidget, public Canvas { public: GLCanvas (QWidget* parent, const graphics_handle& handle); ~GLCanvas (void); void draw (const graphics_handle& handle); void toggleAxes (const graphics_handle& handle); void toggleGrid (const graphics_handle& handle); void autoAxes (const graphics_handle& handle); void drawZoomBox (const QPoint& p1, const QPoint& p2); void resize (int /* x */, int /* y */, int /* width */, int /* height */) { } graphics_object selectFromAxes (const graphics_object& ax, const QPoint& pt); QWidget* qWidget (void) { return this; } protected: void paintGL (void); void mouseDoubleClickEvent (QMouseEvent* event); void mouseMoveEvent (QMouseEvent* event); void mousePressEvent (QMouseEvent* event); void mouseReleaseEvent (QMouseEvent* event); void wheelEvent (QWheelEvent* event); void keyPressEvent (QKeyEvent* event); void keyReleaseEvent (QKeyEvent* event); }; }; // namespace QtHandles #endif