QSqlRelationalDelegate Draw a clickable QToolButton

**patrik08** · 26th February 2007, 20:44

How i can draw a rect 22x22 to make clickabel && emit a signal to parent QWidget
like a ....

QPixmap pix(22, 22);
pix.fill(normalcolor); ... ?

I tested to put in direct a QToolButton but loop to infinite..... and is a setIndexWidget....

Qt Code:

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void BaseDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
    /////////qDebug() << "### index-column   " << index.column();
 
    if (index.column() == 0) { 
        /* not on edit only  flags |= Qt::ItemIsSelectable; */
        QString numer = index.model()->data(index, Qt::DisplayRole).toString();
        QString text = QString("(%1)").arg(numer);
        QToolButton * button1 = new QToolButton(tas);
        button1->setText(text);
        tas->setIndexWidget(index,button1);  
    }  else if (index.column() == 1) {
       /* not on edit only  flags |= Qt::ItemIsSelectable; */
        QString coder = index.model()->data(index, Qt::DisplayRole).toString();
        QStyleOptionViewItem myOption = option;
        myOption.displayAlignment = Qt::AlignLeft | Qt::AlignVCenter;
        myOption.palette.setColor( QPalette::Text , Qt::red );
        drawDisplay(painter, myOption, myOption.rect,coder);
        drawFocus(painter, myOption, myOption.rect);
 
    }
        ...............
 
 
}
 
/* header */
 
class BaseDelegate : public QSqlRelationalDelegate
{
    Q_OBJECT
 
public:
    BaseDelegate( QTableView *ta , QObject *parent );
    void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const;
    QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const;
    void setEditorData(QWidget *editor, const QModelIndex &index) const;
    void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const;
private slots:
private:
    QTableView *tas;
 
};

void BaseDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
    /////////qDebug() << "### index-column   " << index.column();
    
    if (index.column() == 0) { 
        /* not on edit only  flags |= Qt::ItemIsSelectable; */
        QString numer = index.model()->data(index, Qt::DisplayRole).toString();
        QString text = QString("(%1)").arg(numer);
        QToolButton * button1 = new QToolButton(tas);
        button1->setText(text);
        tas->setIndexWidget(index,button1);  
    }  else if (index.column() == 1) {
       /* not on edit only  flags |= Qt::ItemIsSelectable; */
        QString coder = index.model()->data(index, Qt::DisplayRole).toString();
        QStyleOptionViewItem myOption = option;
        myOption.displayAlignment = Qt::AlignLeft | Qt::AlignVCenter;
        myOption.palette.setColor( QPalette::Text , Qt::red );
        drawDisplay(painter, myOption, myOption.rect,coder);
        drawFocus(painter, myOption, myOption.rect);
        
    }
        ...............
    
    
}

/* header */

class BaseDelegate : public QSqlRelationalDelegate
{
    Q_OBJECT

public:
    BaseDelegate( QTableView *ta , QObject *parent );
    void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const;
    QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const;
    void setEditorData(QWidget *editor, const QModelIndex &index) const;
    void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const;
private slots:
private:
    QTableView *tas;
   
};

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**wysota** · 1st March 2007, 12:46

Your code doesn't make sense. Why do you create a tool button in every repaint of the cell? If you want to draw a tool button, then use QStyle::drawComplexControl() with CC_ToolButton as its parameter.

What are you trying to do exactly?

**patrik08** · 1st March 2007, 17:41

Originally Posted by wysota

Your code doesn't make sense. Why do you create a tool button in every repaint of the cell? If you want to draw a tool button, then use QStyle::drawComplexControl() with CC_ToolButton as its parameter.

What are you trying to do exactly?

i have 11 cell on my table only 9 ist editable from model .... and one cell wo is not editable.. i must make a link (connect) to to edit moore field in a form.... and a symple doupleclick is not inaf ..... or i draw a button inside or a qpixmap buttonstyle to append event ... wo people understand to click ,,, && open other dialog.....

I search drawComplexControl i found only a small piece code.... on

http://www.koders.com/cpp/fidE11AA04...ComplexControl

How i can integrate to my model .....?
is this a pain event from QSqlRelationalDelegate subclass?

Qt Code:

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void QTitleBar::paintEvent(QPaintEvent *)
{
    QStyle::SCFlags ctrls = QStyle::SC_TitleBarLabel;
    if ( testWFlags( WStyle_SysMenu) ) {
	if ( testWFlags( WStyle_Tool ) ) {
	    ctrls |= QStyle::SC_TitleBarCloseButton;
	    if ( d->window && testWFlags( WStyle_MinMax ) ) {
		if ( d->window->isMinimized() )
		    ctrls |= QStyle::SC_TitleBarUnshadeButton;
		else
		    ctrls |= QStyle::SC_TitleBarShadeButton;
	    }
	} else {
	    ctrls |= QStyle::SC_TitleBarSysMenu | QStyle::SC_TitleBarCloseButton;
	    if ( d->window && testWFlags( WStyle_Minimize ) ) {
		if( d->window && d->window->isMinimized() )
		    ctrls |= QStyle::SC_TitleBarNormalButton;
		else
		    ctrls |= QStyle::SC_TitleBarMinButton;
	    }
	    if ( d->window && testWFlags( WStyle_Maximize ) && !d->window->isMaximized() )
		ctrls |= QStyle::SC_TitleBarMaxButton;
	}
    }
 
    QStyle::SCFlags under_mouse = QStyle::SC_None;
    if( autoRaise() && hasMouse() ) {
	QPoint p(mapFromGlobal(QCursor::pos()));
	under_mouse = style().querySubControl(QStyle::CC_TitleBar, this, p);
	ctrls ^= under_mouse;
    }
 
    QSharedDoubleBuffer buffer( this, rect() );
    style().drawComplexControl(QStyle::CC_TitleBar, buffer.painter(), this, rect(),
			       colorGroup(),
			       isEnabled() ? QStyle::Style_Enabled :
			       QStyle::Style_Default, ctrls, d->buttonDown);
    if(under_mouse != QStyle::SC_None)
	style().drawComplexControl(QStyle::CC_TitleBar, buffer.painter(), this, rect(),
				   colorGroup(),
				   QStyle::Style_MouseOver |
				   (isEnabled() ? QStyle::Style_Enabled : 0),
				   under_mouse, d->buttonDown);
}

void QTitleBar::paintEvent(QPaintEvent *)
{
    QStyle::SCFlags ctrls = QStyle::SC_TitleBarLabel;
    if ( testWFlags( WStyle_SysMenu) ) {
	if ( testWFlags( WStyle_Tool ) ) {
	    ctrls |= QStyle::SC_TitleBarCloseButton;
	    if ( d->window && testWFlags( WStyle_MinMax ) ) {
		if ( d->window->isMinimized() )
		    ctrls |= QStyle::SC_TitleBarUnshadeButton;
		else
		    ctrls |= QStyle::SC_TitleBarShadeButton;
	    }
	} else {
	    ctrls |= QStyle::SC_TitleBarSysMenu | QStyle::SC_TitleBarCloseButton;
	    if ( d->window && testWFlags( WStyle_Minimize ) ) {
		if( d->window && d->window->isMinimized() )
		    ctrls |= QStyle::SC_TitleBarNormalButton;
		else
		    ctrls |= QStyle::SC_TitleBarMinButton;
	    }
	    if ( d->window && testWFlags( WStyle_Maximize ) && !d->window->isMaximized() )
		ctrls |= QStyle::SC_TitleBarMaxButton;
	}
    }

    QStyle::SCFlags under_mouse = QStyle::SC_None;
    if( autoRaise() && hasMouse() ) {
	QPoint p(mapFromGlobal(QCursor::pos()));
	under_mouse = style().querySubControl(QStyle::CC_TitleBar, this, p);
	ctrls ^= under_mouse;
    }

    QSharedDoubleBuffer buffer( this, rect() );
    style().drawComplexControl(QStyle::CC_TitleBar, buffer.painter(), this, rect(),
			       colorGroup(),
			       isEnabled() ? QStyle::Style_Enabled :
			       QStyle::Style_Default, ctrls, d->buttonDown);
    if(under_mouse != QStyle::SC_None)
	style().drawComplexControl(QStyle::CC_TitleBar, buffer.painter(), this, rect(),
				   colorGroup(),
				   QStyle::Style_MouseOver |
				   (isEnabled() ? QStyle::Style_Enabled : 0),
				   under_mouse, d->buttonDown);
}

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Note:
I have commit my code on http://sourceforge.net/projects/qt-webdav/ much tanks to wysota to make this projekt possibel.... the svn code is live update....

**wysota** · 1st March 2007, 20:07

Why don't you just create an editor widget and assign it to the delegate for appropriate fields?

**patrik08** · 1st March 2007, 20:33

Originally Posted by wysota

Why don't you just create an editor widget and assign it to the delegate for appropriate fields?

An createEditor subclass .... is only to editable flag? or i write mistake?

i can test to emulate a Qt::ItemIsEditable; and return true (on set data ) to column 0 (zero) in this place wo i wand click action ....

Qt Code:

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QWidget *BaseDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
     if (index.column() == 11 || index.column() == 7 ) {
        QDateTimeEdit *editor = new QDateTimeEdit(parent);
        editor->setDisplayFormat("dd.MM.yyyy");
        editor->setCalendarPopup(true);
        return editor;
     }  else {
        return QItemDelegate::createEditor(parent, option, index);
    }
}
void BaseDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const
{
    if (index.column() == 11 || index.column() == 7 ) {
        QString dateuser = index.model()->data(index, Qt::DisplayRole).toString();
        QDateTimeEdit *editorrun = qobject_cast<QDateTimeEdit *>(editor);
         if (editorrun) {
            editorrun->setDate(QDate::fromString(index.model()->data(index, Qt::EditRole).toString(), "dd.MM.yyyy")); 
         }
    }  else {
        QItemDelegate::setEditorData(editor, index);
    }
}

QWidget *BaseDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
     if (index.column() == 11 || index.column() == 7 ) {
        QDateTimeEdit *editor = new QDateTimeEdit(parent);
        editor->setDisplayFormat("dd.MM.yyyy");
        editor->setCalendarPopup(true);
        return editor;
     }  else {
        return QItemDelegate::createEditor(parent, option, index);
    }
}
void BaseDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const
{
    if (index.column() == 11 || index.column() == 7 ) {
        QString dateuser = index.model()->data(index, Qt::DisplayRole).toString();
        QDateTimeEdit *editorrun = qobject_cast<QDateTimeEdit *>(editor);
         if (editorrun) {
            editorrun->setDate(QDate::fromString(index.model()->data(index, Qt::EditRole).toString(), "dd.MM.yyyy")); 
         }
    }  else {
        QItemDelegate::setEditorData(editor, index);
    }
}

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note: code paste from gedit not from scite \n\n buggi scite?
Help why i become "Advanced user" ??

i am advanced user on PHP5 Objekt programming , xml, xslt .... latex... but not on qt4.... on qt4 i preferred Intermediate....

**wysota** · 1st March 2007, 20:59

Originally Posted by patrik08

An createEditor subclass .... is only to editable flag? or i write mistake?

Yes and no. Under normal circumstances it is only for editable items but you can also open something what is called a persistent editor. It is an editor that is always active, regardless of the item focus.

i can test to emulate a Qt::ItemIsEditable; and return true (on set data ) to column 0 (zero) in this place wo i wand click action ....

I don't understand what you mean.

note: code paste from gedit not from scite \n\n buggi scite?

Again, I can't understand you.

Help why i become "Advanced user" ??

Because you post too much

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