KiCad PCB EDA Suite
hidpi_gl_canvas.cpp
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1 /*
2  * This program source code file is part of KICAD, a free EDA CAD application.
3  *
4  * Copyright (C) 2017 Bernhard Stegmaier <stegmaier@sw-systems.de>
5  * Copyright (C) 2016-2017 Kicad Developers, see change_log.txt for contributors.
6  *
7  * Base class for HiDPI aware wxGLCanvas implementations.
8  *
9  * This program is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License
11  * as published by the Free Software Foundation; either version 2
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14  * This program is distributed in the hope that it will be useful,
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25  */
26 
27 #include <gal/hidpi_gl_canvas.h>
28 
29 
31  wxWindowID id,
32  const int *attribList,
33  const wxPoint& pos,
34  const wxSize& size,
35  long style,
36  const wxString& name,
37  const wxPalette& palette ) :
38  wxGLCanvas( parent, id, attribList, pos, size, style, name, palette )
39 {
40 #ifdef RETINA_OPENGL_PATCH
41  SetViewWantsBestResolution( true );
42 #endif
43 }
44 
45 
47 {
48  wxSize size = wxGLCanvas::GetClientSize();
49 
50 #ifdef RETINA_OPENGL_PATCH
51  const float scaleFactor = GetBackingScaleFactor();
52  size.x *= scaleFactor;
53  size.y *= scaleFactor;
54 #endif
55 
56  return size;
57 }
58 
60 {
61 #ifdef RETINA_OPENGL_PATCH
62  // this is ugly, but original method isn't marked const although it doesn't modify anything
63  // => clean up when it officially has arrived in wxWidgets
64  return static_cast< wxGLCanvas* >( const_cast< HIDPI_GL_CANVAS* >( this ))->GetBackingScaleFactor();
65 #else
66  return 1.0f;
67 #endif
68 }
wxGLCanvas wrapper for HiDPI/Retina support.
HIDPI_GL_CANVAS(wxWindow *parent, wxWindowID id=wxID_ANY, const int *attribList=NULL, const wxPoint &pos=wxDefaultPosition, const wxSize &size=wxDefaultSize, long style=0, const wxString &name=wxGLCanvasName, const wxPalette &palette=wxNullPalette)
virtual wxSize GetClientSize() const
const char * name
Definition: DXF_plotter.cpp:61
virtual float GetBackingScaleFactor() const