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KImageFilePreview Class

Image preview widget for the file dialog. More...

• Header: #include <KImageFilePreview>
• CMake: find_package(KF6 REQUIRED COMPONENTS KIO)
target_link_libraries(mytarget PRIVATE KF6::KIOFileWidgets)
• Inherits: KPreviewWidgetBase

List of all members, including inherited members

#Public Functions

• KImageFilePreview(QWidget *parent = nullptr)

#Public Slots

• void clearPreview()
• void gotPreview(const KFileItem &, const QPixmap &)
• void showPreview()
• void showPreview(const QUrl &url)
• void showPreview(const QUrl &url, bool force)

#Protected Functions

• KIO::PreviewJob *createJob(const QUrl &url, int width, int height)

#Detailed Description

#Member Function Documentation

#[explicit] KImageFilePreview::KImageFilePreview(QWidget *parent = nullptr)

Creates a new image file preview.

parent The parent widget.

#[override virtual slot] void KImageFilePreview::clearPreview()

Reimplements: KPreviewWidgetBase::clearPreview().

Clears the preview.

#[virtual protected] KIO::PreviewJob *KImageFilePreview::createJob(const QUrl &url, int width, int height)

#[virtual protected slot] void KImageFilePreview::gotPreview(const KFileItem &, const QPixmap &)

#[protected slot] void KImageFilePreview::showPreview()

Note: This slot is overloaded. To connect to this slot:

// Connect using qOverload:
connect(sender, &SenderClass::signal,
        kImageFilePreview, qOverload<>(&KImageFilePreview::showPreview));

// Or using a lambda as wrapper:
connect(sender, &SenderClass::signal,
        kImageFilePreview, [receiver = kImageFilePreview]() { receiver->showPreview(); });

For more examples and approaches, see connecting to overloaded slots.

#[override virtual slot] void KImageFilePreview::showPreview(const QUrl &url)

Reimplements: KPreviewWidgetBase::showPreview(const QUrl &url).

Shows a preview for the given url.

Note: This slot is overloaded. To connect to this slot:

// Connect using qOverload:
connect(sender, &SenderClass::signal,
        kImageFilePreview, qOverload<const QUrl &>(&KImageFilePreview::showPreview));

// Or using a lambda as wrapper:
connect(sender, &SenderClass::signal,
        kImageFilePreview, [receiver = kImageFilePreview](const QUrl &url) { receiver->showPreview(url); });

For more examples and approaches, see connecting to overloaded slots.

#[protected slot] void KImageFilePreview::showPreview(const QUrl &url, bool force)

Note: This slot is overloaded. To connect to this slot:

// Connect using qOverload:
connect(sender, &SenderClass::signal,
        kImageFilePreview, qOverload<const QUrl &, bool>(&KImageFilePreview::showPreview));

// Or using a lambda as wrapper:
connect(sender, &SenderClass::signal,
        kImageFilePreview, [receiver = kImageFilePreview](const QUrl &url, bool force) { receiver->showPreview(url, force); });

For more examples and approaches, see connecting to overloaded slots.