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 <[email protected]>
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
12 * of the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, you may find one here:
21 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
22 * or you may search the http://www.gnu.org website for the version 2 license,
23 * or you may write to the Free Software Foundation, Inc.,
24 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
25 */
26
27#include <gal/hidpi_gl_canvas.h>
28
29#include <gal/dpi_scaling.h>
30
31
32HIDPI_GL_CANVAS::HIDPI_GL_CANVAS( wxWindow* parent, wxWindowID id, const int* attribList,
33 const wxPoint& pos, const wxSize& size, long style,
34 const wxString& name, const wxPalette& palette ) :
35 wxGLCanvas( parent, id, attribList, pos, size, style, name, palette ),
36 m_scale_factor( DPI_SCALING::GetDefaultScaleFactor() )
37{
38}
39
40
42{
43 wxSize size = wxGLCanvas::GetClientSize();
44
45 const double scaleFactor = GetScaleFactor();
46 size.x *= scaleFactor;
47 size.y *= scaleFactor;
48
49 return size;
50}
51
52
53wxPoint HIDPI_GL_CANVAS::GetNativePosition( const wxPoint& aPoint ) const
54{
55 wxPoint nativePoint = aPoint;
56
57 const double scaleFactor = GetScaleFactor();
58 nativePoint.x *= scaleFactor;
59 nativePoint.y *= scaleFactor;
60
61 return nativePoint;
62}
63
64
65void HIDPI_GL_CANVAS::SetScaleFactor( double aNewScaleFactor )
66{
67 m_scale_factor = aNewScaleFactor;
68}
69
70
72{
73 return m_scale_factor;
74}
const char * name
Definition: DXF_plotter.cpp:56
Class to handle configuration and automatic determination of the DPI scale to use for canvases.
Definition: dpi_scaling.h:37
void SetScaleFactor(double aFactor)
Set the canvas scale factor, probably for a hi-DPI display.
virtual wxSize GetNativePixelSize() const
wxPoint GetNativePosition(const wxPoint &aPoint) const
Convert the given point from client coordinates to native pixel coordinates.
double m_scale_factor
The current scale factor (e.g.
double GetScaleFactor() const
Get the current scale factor.
HIDPI_GL_CANVAS(wxWindow *parent, wxWindowID id=wxID_ANY, const int *attribList=nullptr, const wxPoint &pos=wxDefaultPosition, const wxSize &size=wxDefaultSize, long style=0, const wxString &name=wxGLCanvasName, const wxPalette &palette=wxNullPalette)