146 lines
3.4 KiB
C++
146 lines
3.4 KiB
C++
/*
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* This file is part of RawTherapee.
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*
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* Copyright (c) 2018 Jean-Christophe FRISCH <natureh.510@gmail.com>
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*
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* RawTherapee is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* RawTherapee 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 RawTherapee. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <iostream>
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#include "rtsurface.h"
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#include "options.h"
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namespace
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{
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using SurfaceCache = std::map<std::string, Cairo::RefPtr<Cairo::ImageSurface>>;
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SurfaceCache surfaceCache;
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}
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RTSurface::RTSurface() :
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surface(new Cairo::ImageSurface(nullptr, false))
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{
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}
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RTSurface::RTSurface(const Glib::ustring& fileName, const Glib::ustring& rtlFileName) :
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RTSurface()
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{
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setImage(fileName, rtlFileName);
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}
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void RTSurface::setImage(const Glib::ustring& fileName, const Glib::ustring& rtlFileName)
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{
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const Glib::ustring& imageName =
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!rtlFileName.empty() && getDirection() == Gtk::TEXT_DIR_RTL
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? rtlFileName
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: fileName;
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changeImage (imageName);
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}
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int RTSurface::getWidth() const
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{
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return
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surface
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? surface->get_width()
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: -1;
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}
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int RTSurface::getHeight() const
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{
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return
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surface
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? surface->get_height()
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: -1;
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}
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bool RTSurface::hasSurface() const
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{
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return static_cast<bool>(surface);
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}
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Cairo::RefPtr<const Cairo::ImageSurface> RTSurface::get() const
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{
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return surface;
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}
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const Cairo::RefPtr<Cairo::ImageSurface>& RTSurface::get()
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{
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return surface;
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}
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void RTSurface::init()
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{
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dpiBack = getDPI();
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scaleBack = getScale();
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}
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void RTSurface::updateImages()
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{
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const double tweakedDpi = getTweakedDPI();
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for (auto& entry : surfaceCache) {
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entry.second = loadImage(entry.first, tweakedDpi);
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}
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}
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void RTSurface::setDPInScale(const double newDPI, const int newScale)
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{
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if (
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getScale() != newScale
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|| (
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getScale() == 1
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&& getDPI() != newDPI
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)
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) {
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setDPInScale(newDPI, newScale);
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dpiBack = getDPI();
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scaleBack = getScale();
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updateImages();
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}
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}
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void RTSurface::changeImage(const Glib::ustring& imageName)
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{
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const SurfaceCache::const_iterator iterator = surfaceCache.find(imageName);
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if (iterator != surfaceCache.end()) {
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surface = iterator->second;
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} else {
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surface = loadImage(imageName, getTweakedDPI());
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// HOMBRE: As of now, GDK_SCALE is forced to 1, so setting the Cairo::ImageSurface scale is not required
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// Anyway, this might be of use one day
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/*
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double x=0., y=0.;
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cairo_surface_get_device_scale(surface->cobj(), &x, &y);
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if (getScale() == 2) {
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cairo_surface_set_device_scale(surface->cobj(), 0.5, 0.5); // Not sure if it should be 0.5 or 2.0 here !
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surface->flush();
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}
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*/
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surfaceCache.emplace(imageName, surface);
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}
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}
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double RTSurface::dpiBack = 0.;
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int RTSurface::scaleBack = 0;
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