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  *
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26 
27 #include <gal/hidpi_gl_canvas.h>
28 
29 #include <gal/dpi_scaling.h>
30 
31 
32 HIDPI_GL_CANVAS::HIDPI_GL_CANVAS( wxWindow* parent, wxWindowID id, const int* attribList,
33  const wxPoint& pos, const wxSize& size, long style, const wxString& name,
34  const wxPalette& palette )
35  : wxGLCanvas( parent, id, attribList, pos, size, style, name, palette ),
36  m_scale_factor( DPI_SCALING::GetDefaultScaleFactor() )
37 {
38  // As of wxWidgets version 3.1.3, this is the default behavior of the wxGLCanvas on OSX
39  // so this piece of code can be removed once our minimum version is >3.1.3 for OSX.
40 #ifdef RETINA_OPENGL_PATCH
41  SetViewWantsBestResolution( true );
42 #endif
43 }
44 
45 
47 {
48  wxSize size = wxGLCanvas::GetClientSize();
49 
50  const double scaleFactor = GetScaleFactor();
51  size.x *= scaleFactor;
52  size.y *= scaleFactor;
53 
54  return size;
55 }
56 
57 
58 void HIDPI_GL_CANVAS::SetScaleFactor( double aNewScaleFactor )
59 {
60  m_scale_factor = aNewScaleFactor;
61 }
62 
63 
65 {
66  return m_scale_factor;
67 }
virtual wxSize GetNativePixelSize() const
double GetScaleFactor() const
Get the current scale factor.
Class to handle configuration and automatic determination of the DPI scale to use for canvases.
Definition: dpi_scaling.h:36
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)
double m_scale_factor
The current scale factor (e.g.
const char * name
Definition: DXF_plotter.cpp:59
void SetScaleFactor(double aFactor)
Set the canvas scale factor, probably for a hi-DPI display.