You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
31 lines
1020 B
C++
31 lines
1020 B
C++
// SPDX-FileCopyrightText: 2026 Reion Wong <reionwong@gmail.com>
|
|
// SPDX-License-Identifier: GPL-3.0-or-later
|
|
|
|
#pragma once
|
|
|
|
#include <QQuickAsyncImageProvider>
|
|
#include <QQuickImageProvider>
|
|
|
|
class ThumbnailProvider : public QQuickAsyncImageProvider
|
|
{
|
|
public:
|
|
QQuickImageResponse *requestImageResponse(const QString &id,
|
|
const QSize &requestedSize) override;
|
|
|
|
/**
|
|
* Whether the thumbnail @p source ("image://<name>/<id>") at @p requestedSize
|
|
* device pixels is in the disk cache, so CachedThumbnailProvider can read it
|
|
* synchronously and a view show it in its first frame.
|
|
*/
|
|
static bool isCached(const QUrl &source, const QSize &requestedSize);
|
|
};
|
|
|
|
/** Serves thumbnails from the disk cache on the calling thread and never generates one. */
|
|
class CachedThumbnailProvider : public QQuickImageProvider
|
|
{
|
|
public:
|
|
CachedThumbnailProvider();
|
|
|
|
QImage requestImage(const QString &id, QSize *size, const QSize &requestedSize) override;
|
|
};
|