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ab83c86210
The scaling factor stored inside the canvas is created by a DPI_SCALING helper, which will call the platform-specific functions if no user scaling is specified. This change only affects OSX and Retina displays, so this now also allows custom scaling to be used on OSX if desired (although it shouldn't be needed, since wx has detection for it in 3.0.4).
68 lines
2.2 KiB
C++
68 lines
2.2 KiB
C++
/*
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* This program source code file is part of KICAD, a free EDA CAD application.
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*
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* Copyright (C) 2017 Bernhard Stegmaier <stegmaier@sw-systems.de>
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* Copyright (C) 2016-2017 Kicad Developers, see change_log.txt for contributors.
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*
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* Base class for HiDPI aware wxGLCanvas implementations.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <gal/hidpi_gl_canvas.h>
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#include <dpi_scaling.h>
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HIDPI_GL_CANVAS::HIDPI_GL_CANVAS( wxWindow* parent, wxWindowID id, const int* attribList,
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const wxPoint& pos, const wxSize& size, long style, const wxString& name,
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const wxPalette& palette )
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: wxGLCanvas( parent, id, attribList, pos, size, style, name, palette ),
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m_scale_factor( DPI_SCALING::GetDefaultScaleFactor() )
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{
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// As of wxWidgets version 3.1.3, this is the default behavior of the wxGLCanvas on OSX
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// so this piece of code can be removed once our minimum version is >3.1.3 for OSX.
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#ifdef RETINA_OPENGL_PATCH
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SetViewWantsBestResolution( true );
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#endif
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}
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wxSize HIDPI_GL_CANVAS::GetNativePixelSize() const
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{
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wxSize size = wxGLCanvas::GetClientSize();
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const double scaleFactor = GetScaleFactor();
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size.x *= scaleFactor;
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size.y *= scaleFactor;
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return size;
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}
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void HIDPI_GL_CANVAS::SetScaleFactor( double aNewScaleFactor )
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{
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m_scale_factor = aNewScaleFactor;
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}
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double HIDPI_GL_CANVAS::GetScaleFactor() const
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{
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return m_scale_factor;
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}
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