KisPreviewFileDialog Class Reference

#include <KisPreviewFileDialog.h>

Inheritance diagram for KisPreviewFileDialog:

Public Slots
void	onCurrentChanged (const QString &path)
void	previewToggled (bool showPreview)

Public Member Functions
	KisPreviewFileDialog (QWidget *parent=nullptr, const QString &caption=QString(), const QString &directory=QString(), const QString &filter=QString())
void	resetIconProvider ()

Static Public Attributes
static KisAbstractFileIconCreator *	s_iconCreator {0}

Private Attributes
KisFileIconProvider *	m_iconProvider {0}
QLabel *	m_preview {0}
QToolButton *	m_previewToggle {0}

Detailed Description

Definition at line 41 of file KisPreviewFileDialog.h.

Constructor & Destructor Documentation

KisPreviewFileDialog()

KisPreviewFileDialog::KisPreviewFileDialog	(	QWidget *	parent = nullptr,
		const QString &	caption = QString(),
		const QString &	directory = QString(),
		const QString &	filter = QString() )

Definition at line 42 of file KisPreviewFileDialog.cpp.

    : QFileDialog(parent, caption, directory, filter)
{
    KConfigGroup group = KSharedConfig::openConfig()->group("KisPreviewFileDialog");
    if (group.readEntry("show_thumbnails", false)) {
        m_iconProvider = new KisFileIconProvider(devicePixelRatioF());
    }
 
    m_preview = new QLabel(i18n("Preview"), this);
    m_preview->setAlignment(Qt::AlignCenter);
    m_preview->setMinimumWidth(256);
 
    m_previewToggle = new QToolButton(this);
    m_previewToggle->setCheckable(true);
    m_previewToggle->setChecked(group.readEntry("show_preview", true));
    m_previewToggle->setIcon(KisIconUtils::loadIcon("preview"));
    m_previewToggle->setToolTip(i18n("Toggle Preview"));
    connect(m_previewToggle, SIGNAL(toggled(bool)), SLOT(previewToggled(bool)));
 
    connect(this, SIGNAL(currentChanged(const QString&)), this, SLOT(onCurrentChanged(const QString&)));
}

References connect(), KisIconUtils::loadIcon(), m_iconProvider, m_preview, m_previewToggle, onCurrentChanged(), and previewToggled().

Member Function Documentation

onCurrentChanged

void KisPreviewFileDialog::onCurrentChanged ( const QString & path )

slot

Definition at line 83 of file KisPreviewFileDialog.cpp.

{
    // Generate the preview only if we're not using the native dialog.
    // In AppImages, the platform plugins are inaccessible,
    // so we check the existence of a widget layout instead.
    if ((testOption(QFileDialog::DontUseNativeDialog) || layout()) && m_preview) {
        QIcon icon;
        if (s_iconCreator && s_iconCreator->createFileIcon(path, icon, devicePixelRatioF(), QSize(512, 512))) {
            auto pixmap = icon.pixmap(m_preview->width(), m_preview->height());
            pixmap.setDevicePixelRatio(devicePixelRatioF());
            m_preview->setPixmap(pixmap);
        }
        else {
            m_preview->setText(i18n("No Preview"));
        }
    }
}

References KisAbstractFileIconCreator::createFileIcon(), m_preview, and s_iconCreator.

previewToggled

void KisPreviewFileDialog::previewToggled ( bool showPreview )

slot

Definition at line 101 of file KisPreviewFileDialog.cpp.

{
    KConfigGroup group = KSharedConfig::openConfig()->group("KisPreviewFileDialog");
    group.writeEntry("show_preview", showPreview);
    m_preview->setVisible(showPreview);
}

References m_preview.

resetIconProvider()

void KisPreviewFileDialog::resetIconProvider

(

)

Definition at line 64 of file KisPreviewFileDialog.cpp.

{
    QSplitter *splitter = findChild<QSplitter *>();
    if (splitter) {
        splitter->addWidget(m_preview);
        resize(width() + m_preview->width(), height());
    }
 
    QHBoxLayout *layout = findChild<QHBoxLayout *>();
    if (layout) {
        layout->addWidget(m_previewToggle);
    }
 
    KConfigGroup group = KSharedConfig::openConfig()->group("File Dialogs");
    if (group.readEntry("show_thumbnails", false)) {
        setIconProvider(m_iconProvider);
    }
}

References m_iconProvider, m_preview, and m_previewToggle.

Member Data Documentation

m_iconProvider

KisFileIconProvider* KisPreviewFileDialog::m_iconProvider {0}

private

Definition at line 61 of file KisPreviewFileDialog.h.

{0};

m_preview

QLabel* KisPreviewFileDialog::m_preview {0}

private

Definition at line 62 of file KisPreviewFileDialog.h.

{0};

m_previewToggle

QToolButton* KisPreviewFileDialog::m_previewToggle {0}

private

Definition at line 63 of file KisPreviewFileDialog.h.

{0};

s_iconCreator

KisAbstractFileIconCreator * KisPreviewFileDialog::s_iconCreator {0}

static

Definition at line 20 of file KisPreviewFileDialog.h.

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The documentation for this class was generated from the following files:

• libs/widgetutils/KisPreviewFileDialog.h
• libs/widgetutils/KisPreviewFileDialog.cpp