klineedit.h

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#ifndef KLINEEDIT_H
#define KLINEEDIT_H

#include <QLineEdit>
#include <QLabel>
#include <QPainter>
#include <QPaintEvent>

class QAction;
class QMenu;

class KLineEditButton : public QWidget
{
    Q_OBJECT

    public:
        KLineEditButton(QWidget *parent) : QWidget(parent)
        {
        }

        QSize sizeHint() const
        {
            return m_pixmap.size();
        }

        void animateVisible(bool visible)
        {
            if(visible)
            {
                show();
            }
            else
            {
                hide();
            }
            setVisible(visible);
        }

        void setPixmap(const QPixmap& p)
        {
            m_pixmap = p;
        }

        QPixmap pixmap()
        {
            return m_pixmap;
        }

    protected:
        void paintEvent(QPaintEvent *event)
        {
            Q_UNUSED(event)

            if (m_pixmap.isNull())
            {
                return;
            }

            QPainter p(this);
            p.setOpacity(100);
            p.drawPixmap((width() - m_pixmap.width()) / 2, (height() - m_pixmap.height()) / 2, m_pixmap);
        }

    private:
        QPixmap m_pixmap;
};

class KLineEdit : public QLineEdit
{
    Q_OBJECT
    Q_PROPERTY(bool showClearButton READ isClearButtonShown WRITE setClearButtonShown)

    public:
        explicit KLineEdit(const QString &string, QWidget *parent = 0);
        explicit KLineEdit(QWidget *parent = 0);
        virtual ~KLineEdit();

        void setClearButtonShown(bool show);
        bool isClearButtonShown() const;
        QSize clearButtonUsedSize() const;

    Q_SIGNALS:
        void clearButtonClicked();

    protected:
        virtual void resizeEvent(QResizeEvent *);
        virtual void mousePressEvent( QMouseEvent *);
        virtual void mouseReleaseEvent( QMouseEvent *);

    private Q_SLOTS:
        void updateClearButtonIcon(const QString&);

    private:
        void updateClearButton();

    private:
        void init();

        bool clickInClear:1;
        bool wideEnoughForClear:1;
        KLineEditButton *clearButton;
        int overlap;
};

#endif

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