mirror of
https://github.com/qgis/QGIS.git
synced 2025-02-27 00:33:48 -05:00
c49b5b777f
Rationale: - there was a lot of large objects passed by value, so potentially there's a speed bump from this - even for implicitly shared classes like QString/QList there's still a (small) cost for copying the objects when there's no reason to - it's the right thing to do!
54 lines
1.3 KiB
Plaintext
54 lines
1.3 KiB
Plaintext
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/** LineEdit with builtin clear button
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*/
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class QgsFilterLineEdit : QLineEdit
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{
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%TypeHeaderCode
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#include <qgsfilterlineedit.h>
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%End
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public:
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QgsFilterLineEdit( QWidget* parent /TransferThis/ = 0, const QString& nullValue = QString::null );
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void setNullValue( const QString& nullValue );
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QString nullValue() const;
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/**
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* Sets the current text with NULL support
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*
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* @param value The text to set. If a Null string is provided, the text will match the nullValue.
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*/
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void setValue( const QString& value );
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/**
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* Returns the text of this edit with NULL support
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*
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* @return Current text (Null string if it matches the nullValue property )
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*/
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QString value() const;
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/**
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* Determine if the current text represents Null.
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*
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* @return True if the value is Null.
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*/
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bool isNull() const;
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signals:
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void cleared();
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/**
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* Same as textChanged(const QString& ) but with support for Null values.
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*
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* @param value The current text or Null string if it matches the nullValue property.
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*/
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void valueChanged( const QString& value );
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protected:
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void mousePressEvent( QMouseEvent* e );
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void focusInEvent( QFocusEvent* e );
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void resizeEvent( QResizeEvent* e );
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void changeEvent( QEvent* e );
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void paintEvent( QPaintEvent* e );
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};
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