rawTherapee/rtgui/rtscalable.h

56 lines
1.8 KiB
C++

/*
* This file is part of RawTherapee.
*
* Copyright (c) 2018 Jean-Christophe FRISCH <natureh.510@gmail.com>
*
* RawTherapee 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.
*
* RawTherapee 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 RawTherapee. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <gtkmm/image.h>
/**
* @brief A master class for derived class of Gtk::Image in order to handle theme-related icon sets.
*/
class RTScalable
{
static double dpi;
static int scale;
static Gtk::TextDirection direction; // cached value for text-direction
static void deleteDir(const Glib::ustring& path);
protected:
static void setDPInScale (const double newDPI, const int newScale);
static Cairo::RefPtr<Cairo::ImageSurface> loadImage(const Glib::ustring &fname, double dpi);
static Gtk::TextDirection getDirection();
public:
#ifdef __APPLE__
static constexpr double baseDPI = 72.;
static constexpr double baseHiDPI = 144.;
#else
static constexpr double baseDPI = 96.;
static constexpr double baseHiDPI = 192.;
#endif
static void init(Gtk::Window *window);
static void cleanup();
static double getDPI ();
static double getTweakedDPI (); // The returned value is tweaked DPI to adapt to main the font size. Maybe not an ideal solution.
static int getScale ();
};