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pavucontrol-qt-packaging/libfm-qt/thumbnailloader.h

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/*
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) 2013 PCMan <email>
This program 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 2 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef FM_THUMBNAILLOADER_H
#define FM_THUMBNAILLOADER_H
#include "libfmqtglobals.h"
#include <QImage>
#include <libfm/fm.h>
#include <gio/gio.h>
namespace Fm {
class LIBFM_QT_API ThumbnailLoader {
public:
ThumbnailLoader();
virtual ~ThumbnailLoader();
static ThumbnailLoader* instance() {
return theThumbnailLoader;
}
static FmThumbnailLoader* load(FmFileInfo* fileInfo, int size, FmThumbnailLoaderCallback callback, gpointer user_data) {
// qDebug("load thumbnail: %s", fm_file_info_get_disp_name(fileInfo));
return fm_thumbnail_loader_load(fileInfo, size, callback, user_data);
}
static FmFileInfo* fileInfo(FmThumbnailLoader* result) {
return fm_thumbnail_loader_get_file_info(result);
}
static void cancel(FmThumbnailLoader* result) {
fm_thumbnail_loader_cancel(result);
}
static QImage image(FmThumbnailLoader* result);
static int size(FmThumbnailLoader* result) {
return fm_thumbnail_loader_get_size(result);
}
static void setLocalFilesOnly(bool value) {
localFilesOnly_ = value;
if(fm_config)
fm_config->thumbnail_local = localFilesOnly_;
}
static bool localFilesOnly() {
return localFilesOnly_;
}
static int maxThumbnailFileSize() {
return maxThumbnailFileSize_;
}
static void setMaxThumbnailFileSize(int size) {
maxThumbnailFileSize_ = size;
if(fm_config)
fm_config->thumbnail_max = maxThumbnailFileSize_;
}
private:
static GObject* readImageFromFile(const char* filename);
static GObject* readImageFromStream(GInputStream* stream, guint64 len, GCancellable* cancellable);
static gboolean writeImage(GObject* image, const char* filename);
static GObject* scaleImage(GObject* ori_pix, int new_width, int new_height);
static int getImageWidth(GObject* image);
static int getImageHeight(GObject* image);
static char* getImageText(GObject* image, const char* key);
static gboolean setImageText(GObject* image, const char* key, const char* val);
static GObject* rotateImage(GObject* image, int degree);
private:
static ThumbnailLoader* theThumbnailLoader;
static bool localFilesOnly_;
static int maxThumbnailFileSize_;
};
}
#endif // FM_THUMBNAILLOADER_H