QcomboBox item height

Hi all,

I would like to set with stylesheet the item's height when combo's pop up opens.

any suggestion?

thank you

Beppe

It seems not possible with style sheet...
I tried -

Code:

---

QComboBox QAbstractItemView 
{
	font: 75 48pt "Times New Roman";
 }

---

but it doesnt work

try to set an item size throught a model

Code:

---

#include <QtGui>
#include <QApplication>
 
int main(int argc, char **argv)
{
   QApplication app(argc, argv);
   QComboBox cb;
   cb.addItems(QStringList() << "a" << "b" << "c" << "d");
   cb.model()->setData(cb.model()->index(0, 0), QSize(100, 100), Qt::SizeHintRole);
   cb.show();
   return app.exec();
}

---

Thank you spirit, it works.

I have another problem. I would like to change the scrollbar of the items' list. I have to use the function

Code:

---

void QComboBox::setView ( QAbstractItemView * itemView )

---

and set my scrollbar for QAbstractItemView using

Code:

---

setVerticalScrollBar ( QScrollBar * )

---

???

Am i rught ?

you can get a view using QComboBox::view and then set a new scroll bar.

Thanks again spirit, it works, but my scrollbar is not correctly displayed in the combobox's pop up (see scrollbarComboBox.JPG). When I add my scrollbar to a scrollarea it is correctly displayed (see scrollbarScrollArea.JPG).

my combo box code is

mycombobox.cpp

Code:

---

#include "mycombobox.h"
 
 
myComboBox::myComboBox(QWidget * parent)
     : QComboBox(parent)
{
        comboScrollBar = new myscrollbar(0);
 
 
    this->view()->setVerticalScrollBar(comboScrollBar);
 
 
this->setStyleSheet(" \
QComboBox { border: 1px solid gray;\
            border-radius: 3px;\
            padding: 1px 18px 1px 3px; \
            min-width: 6em; \
} \
\
 QComboBox:editable {\
     background: white;\
 }\
\
 QComboBox:!editable, QComboBox::drop-down:editable {\
      background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,\
                                  stop: 0 #E1E1E1, stop: 0.4 #DDDDDD,\
                                  stop: 0.5 #D8D8D8, stop: 1.0 #D3D3D3);\
 }\
\
\
 QComboBox:!editable:on, QComboBox::drop-down:editable:on {\
     background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,\
                                 stop: 0 #D3D3D3, stop: 0.4 #D8D8D8,\
                                 stop: 0.5 #DDDDDD, stop: 1.0 #E1E1E1);\
 }\
 QComboBox:on {\
     padding-top: 3px;\
     padding-left: 4px;\
 }\
 QComboBox::drop-down {\
     subcontrol-origin: padding;\
     subcontrol-position: top right;\
     width: 54px;\
     border-left-width: 1px;\
     border-left-color: darkgray;\
     border-left-style: solid; \
     border-top-right-radius: 3px; \
     border-bottom-right-radius: 3px;\
 }\
QComboBox::down-arrow {\
     image: url(b_droplist.png);\
}\
 \
QComboBox::down-arrow:on { \
     top: 1px;\
     left: 1px;\
 }\
 QComboBox QAbstractItemView {\
     border: 2px solid darkgray;\
     selection-background-color: lightgray;\
 }\
");
}

---

mycombobox.h

Code:

---

#ifndef MYCOMBOBOX_H
#define MYCOMBOBOX_H
 
#include <QtCore>
#include <QtGui>
#include <QComboBox>
 
#include "myscrollbar.h"
 
 
class myComboBox : public QComboBox
{
    Q_OBJECT
    Q_DISABLE_COPY(myComboBox)
public:
    myComboBox(QWidget * parent = 0);
 
private:
    myscrollbar *comboScrollBar;
};
 
 
#endif // MYCOMBOBOX_H

---

and my scrollbar code is

myscrollbar.cpp

Code:

---

myscrollbar::myscrollbar(QWidget * parent)
     : QScrollBar(Qt::Vertical, parent)
{
 
 
this->setStyleSheet("  \
QScrollBar::vertical {\
    background:lightgray;\
    border-color:black;\
    border-style:solid;\
    width: 15px;\
    margin-top:1px;\
    margin-bottom:1px;\
}\
 \
QScrollBar::add-page:vertical, \
QScrollBar::sub-page:vertical {\
    background: none;\
}\
 \
QScrollBar::add-line:vertical{\
    background:none;\
} \
 \
QScrollBar::sub-line:vertical { \
    background:none;\
} \
 \
QScrollBar::handle:vertical {\
    background: url(slider.png);\
\
    border-color:black;\
    border-style:solid;\
    border-width:1px;\
} \
 \
QScrollBar::add-line:pressed,\
QScrollBar::sub-line:pressed,\
QScrollBar::handle:pressed{\
    background:lightgray;\
    background: url(slider.png);\
}\
  ");
}
 
QSize myscrollbar::sizeHint() const
{
    return QSize(50,96);
}
 
 QSize myscrollbar::minimumSizeHint() const
 {
    return QSize(50,96);
 }

---

myscrollbar.h

Code:

---

#ifndef MYSCROLLBAR_H
#define MYSCROLLBAR_H
 
#include <QtCore>
#include <QtGui>
#include <QScrollBar>
 
class myscrollbar : public QScrollBar
{
    Q_OBJECT
    Q_DISABLE_COPY(myscrollbar)
public:
    myscrollbar(QWidget * parent = 0);
 
    QSize sizeHint() const;
    QSize minimumSizeHint() const;
};
 
#endif // MYSCROLLBAR_H

---

have you any idea of the problem ?

why do you create own scroll bar? you just can set a style sheet for already created scrollbar in a combobox, e.g.

Code:

---

...
cb->view()->setStyleSheet(...);
...

---

or

Code:

---

...
cb->view()->verticalScrollBar()->setStyleSheet(...);
...

---

or I missed something?

I'm not expert, so you may be right.

Actually I want to use my scrollbar for other widget such as ScrollArea and I think my code is more flexible if I define my custom scrollbar.

if you wanna apply your style sheet for all scrollbars in your app then use QApplication::setStyleSheet.

Thank you for the suggestion