rawTherapee/rtgui/rtimage.cc

118 lines
3.1 KiB
C++

/*
* This file is part of RawTherapee.
*
* Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
* Copyright (c) 2011 Jean-Christophe FRISCH <natureh@free.fr>
*
* 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/>.
*/
#include "rtimage.h"
#include <iostream>
#include "options.h"
#include "../rtengine/icons.h"
namespace
{
std::map<std::string, Glib::RefPtr<Gdk::Pixbuf>> pixbufCache;
}
RTImage::RTImage (const Glib::ustring& fileName, const Glib::ustring& rtlFileName) : Gtk::Image()
{
Glib::ustring imageName;
if (!rtlFileName.empty () && get_direction () == Gtk::TEXT_DIR_RTL) {
imageName = rtlFileName;
} else {
imageName = fileName;
}
changeImage (imageName);
}
void RTImage::changeImage (const Glib::ustring& imageName)
{
clear ();
auto iterator = pixbufCache.find (imageName);
if (iterator == pixbufCache.end ()) {
const auto imagePath = rtengine::findIconAbsolutePath (imageName);
const auto pixbuf = Gdk::Pixbuf::create_from_file (imagePath);
iterator = pixbufCache.emplace (imageName, pixbuf).first;
}
set(iterator->second);
}
void RTImage::updateImages()
{
for (auto& entry : pixbufCache) {
const auto imagePath = rtengine::findIconAbsolutePath (entry.first);
entry.second = Gdk::Pixbuf::create_from_file (imagePath);
}
}
Glib::RefPtr<Gdk::Pixbuf> RTImage::createFromFile (const Glib::ustring& fileName)
{
Glib::RefPtr<Gdk::Pixbuf> pixbuf;
try {
const auto filePath = rtengine::findIconAbsolutePath (fileName);
if (!filePath.empty ()) {
pixbuf = Gdk::Pixbuf::create_from_file (filePath);
}
} catch (const Glib::Exception& exception) {
if (options.rtSettings.verbose) {
std::cerr << "Failed to load image \"" << fileName << "\": " << exception.what() << std::endl;
}
}
return pixbuf;
}
Cairo::RefPtr<Cairo::ImageSurface> RTImage::createFromPng (const Glib::ustring& fileName)
{
Cairo::RefPtr<Cairo::ImageSurface> surface;
try {
const auto filePath = rtengine::findIconAbsolutePath (fileName);
if (!filePath.empty()) {
surface = Cairo::ImageSurface::create_from_png (Glib::locale_from_utf8 (filePath));
}
} catch (const Glib::Exception& exception) {
if (options.rtSettings.verbose) {
std::cerr << "Failed to load PNG \"" << fileName << "\": " << exception.what() << std::endl;
}
}
return surface;
}