AspectRatioLabel Class

class QInstaller::AspectRatioLabel

The AspectRatioLabel class provides a label for displaying a pixmap that maintains its original aspect ratio when resized. More...

Header: #include <AspectRatioLabel>
Inherits: QLabel

Public Functions

AspectRatioLabel(QWidget *parent = nullptr)

Reimplemented Public Functions

virtual int heightForWidth(int w) const override
virtual QSize sizeHint() const override

Public Slots

virtual void resizeEvent(QResizeEvent *event) override
void setPixmap(const QPixmap &pixmap)
void setPixmapAndUrl(const QPixmap &pixmap, const QString &url)

Reimplemented Protected Functions

virtual bool event(QEvent *e) override
virtual void mousePressEvent(QMouseEvent *event) override

Detailed Description

Member Function Documentation

AspectRatioLabel::AspectRatioLabel(QWidget *parent = nullptr)

Constructs the label with parent as parent.

[override virtual slot] void AspectRatioLabel::resizeEvent(QResizeEvent *event)

Reimplements: QWidget::resizeEvent(QResizeEvent *event).

[slot] void AspectRatioLabel::setPixmap(const QPixmap &pixmap)

Sets the pixmap shown on the label. Setting a new pixmap clears the previous content.

Note: This redefines the non-virtual slot of the same signature from the QLabel base class, which results in non polymorphic behavior when called via a base class pointer.

[slot] void AspectRatioLabel::setPixmapAndUrl(const QPixmap &pixmap, const QString &url)

Sets the pixmap shown on the label and an url. Setting a new pixmap clears the previous content. When clicking the pixmap, url is opened in a browser. If the url is a reference to a file, it will be opened with a suitable application instead of a Web browser.

[override virtual protected] bool AspectRatioLabel::event(QEvent *e)

Reimplements: QLabel::event(QEvent *e).

[override virtual] int AspectRatioLabel::heightForWidth(int w) const

Reimplements: QLabel::heightForWidth(int w) const.

[override virtual protected] void AspectRatioLabel::mousePressEvent(QMouseEvent *event)

Reimplements: QLabel::mousePressEvent(QMouseEvent *ev).

[override virtual] QSize AspectRatioLabel::sizeHint() const

Reimplements: QLabel::sizeHint() const.

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