81 lines
1.9 KiB
C++
81 lines
1.9 KiB
C++
#include "./iconbutton.h"
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#include <QKeyEvent>
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#include <QStyle>
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#include <QStyleOptionFocusRect>
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#include <QStylePainter>
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namespace Widgets {
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/*!
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* \class Widgets::IconButton
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* \brief A simple QAbstractButton implementation displaying a QPixmap.
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*/
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/*!
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* \brief Constructs an icon button.
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*/
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IconButton::IconButton(QWidget *parent)
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: QAbstractButton(parent)
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{
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setCursor(Qt::ArrowCursor);
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setFocusPolicy(Qt::NoFocus);
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}
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/*!
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* \brief Destroys the icon button.
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*/
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IconButton::~IconButton()
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{
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}
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QSize IconButton::sizeHint() const
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{
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#if QT_VERSION >= 0x050100
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const qreal pixmapRatio = m_pixmap.devicePixelRatio();
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#else
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const qreal pixmapRatio = 1.0;
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#endif
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return QSize(m_pixmap.width() / pixmapRatio, m_pixmap.height() / pixmapRatio);
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}
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void IconButton::paintEvent(QPaintEvent *)
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{
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#if QT_VERSION >= 0x050100
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const qreal pixmapRatio = m_pixmap.devicePixelRatio();
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#else
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const qreal pixmapRatio = 1.0;
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#endif
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QStylePainter painter(this);
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QRect pixmapRect = QRect(0, 0, m_pixmap.width() / pixmapRatio, m_pixmap.height() / pixmapRatio);
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pixmapRect.moveCenter(rect().center());
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painter.drawPixmap(pixmapRect, m_pixmap);
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if (hasFocus()) {
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QStyleOptionFocusRect focusOption;
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focusOption.initFrom(this);
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focusOption.rect = pixmapRect;
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#ifdef Q_OS_MAC
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focusOption.rect.adjust(-4, -4, 4, 4);
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painter.drawControl(QStyle::CE_FocusFrame, focusOption);
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#else
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painter.drawPrimitive(QStyle::PE_FrameFocusRect, focusOption);
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#endif
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}
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}
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void IconButton::keyPressEvent(QKeyEvent *event)
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{
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QAbstractButton::keyPressEvent(event);
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if (!event->modifiers() && (event->key() == Qt::Key_Enter || event->key() == Qt::Key_Return)) {
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click();
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}
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event->accept();
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}
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void IconButton::keyReleaseEvent(QKeyEvent *event)
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{
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QAbstractButton::keyReleaseEvent(event);
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event->accept();
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}
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} // namespace Widgets
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