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////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2011-2024 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_gl_select_h)
#define octave_gl_select_h 1
#include <map>
#include <string>
#include "gl-render.h"
#include "oct-opengl.h"
OCTAVE_BEGIN_NAMESPACE(octave)
enum select_flags
{
select_ignore_hittest = 0x01,
select_last = 0x02
};
class opengl_selector : public opengl_renderer
{
public:
opengl_selector (opengl_functions& glfcns)
: opengl_renderer (glfcns), m_size (5)
{ }
virtual ~opengl_selector () = default;
graphics_object select (const graphics_object& ax, int x, int y,
int flags = 0);
virtual void draw (const graphics_object& go, bool toplevel = true);
protected:
virtual void draw_text (const text::properties& props);
virtual void draw_image (const image::properties& props);
virtual void setup_opengl_transformation (const axes::properties& props);
virtual void init_marker (const std::string& m, double m_size, float width);
virtual Matrix render_text (const std::string& txt,
double x, double y, double z,
int halign, int valign, double rotation = 0.0);
private:
void apply_pick_matrix ();
void fake_text (double x, double y, double z, const Matrix& bbox,
bool use_scale = true);
private:
// The mouse coordinate of the selection/picking point
int m_xp, m_yp;
// The size (in pixels) of the picking window
int m_size;
// The OpenGL name mapping
std::map<GLuint, graphics_object> m_object_map;
};
OCTAVE_END_NAMESPACE(octave)
#endif
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