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// Copyright (C) 2020 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#pragma once
#include "asynchronousimagecacheinterface.h"
#include <utils/optional.h>
#include <condition_variable>
#include <deque>
#include <functional>
#include <mutex>
#include <thread>
namespace QmlDesigner {
class ImageCacheStorageInterface;
class AsynchronousExplicitImageCache
{
public:
~AsynchronousExplicitImageCache();
AsynchronousExplicitImageCache(ImageCacheStorageInterface &storage);
void requestImage(Utils::PathString name,
ImageCache::CaptureImageCallback captureCallback,
ImageCache::AbortCallback abortCallback,
Utils::SmallString extraId = {});
void requestSmallImage(Utils::PathString name,
ImageCache::CaptureImageCallback captureCallback,
ImageCache::AbortCallback abortCallback,
Utils::SmallString extraId = {});
void clean();
private:
enum class RequestType { Image, SmallImage, Icon };
struct RequestEntry
{
RequestEntry() = default;
RequestEntry(Utils::PathString name,
Utils::SmallString extraId,
ImageCache::CaptureImageCallback &&captureCallback,
ImageCache::AbortCallback &&abortCallback,
RequestType requestType)
: name{std::move(name)}
, extraId{std::move(extraId)}
, captureCallback{std::move(captureCallback)}
, abortCallback{std::move(abortCallback)}
, requestType{requestType}
{}
Utils::PathString name;
Utils::SmallString extraId;
ImageCache::CaptureImageCallback captureCallback;
ImageCache::AbortCallback abortCallback;
RequestType requestType = RequestType::Image;
};
Utils::optional<RequestEntry> getEntry();
void addEntry(Utils::PathString &&name,
Utils::SmallString &&extraId,
ImageCache::CaptureImageCallback &&captureCallback,
ImageCache::AbortCallback &&abortCallback,
RequestType requestType);
void clearEntries();
void waitForEntries();
void stopThread();
bool isRunning();
static void request(Utils::SmallStringView name,
Utils::SmallStringView extraId,
AsynchronousExplicitImageCache::RequestType requestType,
ImageCache::CaptureImageCallback captureCallback,
ImageCache::AbortCallback abortCallback,
ImageCacheStorageInterface &storage);
private:
void wait();
private:
std::deque<RequestEntry> m_requestEntries;
mutable std::mutex m_mutex;
std::condition_variable m_condition;
std::thread m_backgroundThread;
ImageCacheStorageInterface &m_storage;
bool m_finishing{false};
};
} // namespace QmlDesigner
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