Hi,
Something like this?
#include <QTextEdit>
#include <QHBoxLayout>
#include <QLabel>
#include <QWidget>
#include <QApplication>
#include <QPainter>
#include <QVBoxLayout>
#include <QMouseEvent>
#include <QResizeEvent>
class Text;
class Corner
: public QWidget
{
public:
Corner( QWidget * parent )
: QWidget( parent )
, m_toResize( parent )
, m_pressed( false )
{
}
virtual ~Corner()
{
}
QSize sizeHint() const Q_DECL_OVERRIDE
{
return QSize( 10, 10 );
}
protected:
void paintEvent( QPaintEvent * ) Q_DECL_OVERRIDE
{
QPainter p( this );
p.setPen( Qt::red );
p.setBrush( Qt::red );
p.drawRect( rect() );
}
void mousePressEvent( QMouseEvent * e ) Q_DECL_OVERRIDE
{
if( e->button() == Qt::LeftButton )
{
m_pos = e->pos();
m_pressed = true;
}
e->accept();
}
void mouseReleaseEvent( QMouseEvent * e ) Q_DECL_OVERRIDE
{
if( e->button() == Qt::LeftButton )
m_pressed = false;
e->accept();
}
void mouseMoveEvent( QMouseEvent * e ) Q_DECL_OVERRIDE
{
if( m_pressed )
{
const QPoint delta = e->pos() - m_pos;
m_toResize->resize( m_toResize->size() + QSize( delta.x(),
delta.y() ) );
}
e->accept();
}
private:
QWidget * m_toResize;
QPoint m_pos;
bool m_pressed;
};
class Text
: public QTextEdit
{
public:
Text( QWidget * parent )
: QTextEdit( parent )
, m_corner( new Corner( this ) )
{
m_corner->move( width() - m_corner->width(),
height() - m_corner->height() );
}
virtual ~Text()
{
}
protected:
void resizeEvent( QResizeEvent * e ) Q_DECL_OVERRIDE
{
m_corner->move( width() - m_corner->width(),
height() - m_corner->height() );
e->accept();
}
private:
Corner * m_corner;
};
class Form
: public QWidget
{
public:
Form()
{
QVBoxLayout * v = new QVBoxLayout( this );
QHBoxLayout * h = new QHBoxLayout;
v->addLayout( h );
QLabel * label = new QLabel( "Resizeable Text Field", this );
h->addWidget( label );
Text * text = new Text( this );
h->addWidget( text );
QSpacerItem * s = new QSpacerItem( 10, 10, QSizePolicy::Fixed,
QSizePolicy::Expanding );
v->addItem( s );
resize( 800, 800 );
}
virtual ~Form()
{
}
};
int main( int argc, char ** argv )
{
QApplication app( argc, argv );
Form f;
f.show();
return app.exec();
}
On 13.04.2018 10:34, Alexander Semke wrote:
Hi,
one frequently sees form text fields on the web where the actual text field can
be resized by the user by clicking on the resize-symbol in the corner of the
text field and dragging it until the desired size is achieved. I'm wondering
how to get this for a QTextEdit placed in a layout. Does somebody have an
idea here?
Thanks and Regards,
Alexander
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http://lists.qt-project.org/mailman/listinfo/interest
