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POHow can I apply a global QListView style to a QListWidget that uses a QAbstractItemDelegate for customized item display?
 

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  1. POHow can I apply a global QListView style to a QListWidget that uses a QAbstractItemDelegate for customized item display?
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    <p>I have successfully created a QListWidget that displays 2 lines of text for each item using this code (adapted from <a href="http://www.qtcentre.org/threads/27777-Customize-QListWidgetItem-how-to" rel="nofollow">this example</a>):</p> <p>SessionListDelegate.h</p> <pre><code>#ifndef SESSIONLISTDELEGATE_H_ #define SESSIONLISTDELEGATE_H_ #include &lt;QPainter&gt; #include &lt;QAbstractItemDelegate&gt; class SessionListDelegate : public QAbstractItemDelegate { public: SessionListDelegate(QObject *parent = 0, QStyle *style); virtual ~SessionListDelegate(); void paint (QPainter * painter, const QStyleOptionViewItem &amp; option, const QModelIndex &amp; index) const; QSize sizeHint (const QStyleOptionViewItem &amp; option, const QModelIndex &amp; index) const; private: }; #endif /* SESSIONLISTDELEGATE_H_ */ </code></pre> <p>SessionListDelegate.cpp</p> <pre><code>#include "SessionListDelegate.h" SessionListDelegate::SessionListDelegate(QObject *parent) : QAbstractItemDelegate(parent) { this-&gt;_parent = parent; } void SessionListDelegate::paint(QPainter * painter, const QStyleOptionViewItem &amp; option, const QModelIndex &amp; index) const { QRect r = option.rect; QPen fontPen(QColor::fromRgb(51,51,51), 1, Qt::SolidLine); if(option.state &amp; QStyle::State_Selected) { painter-&gt;fillRect(option.rect, option.palette.color(QPalette::Highlight)); } painter-&gt;setPen(fontPen); QString date = index.data(Qt::DisplayRole).toString(); QString description = index.data(Qt::UserRole).toString(); int imageSpace = 10; r = option.rect.adjusted(imageSpace, 0, -10, -30); painter-&gt;setFont(QFont( "Lucida Grande", 24, QFont::Normal)); painter-&gt;drawText(r.left(), r.top(), r.width(), r.height(), Qt::AlignBottom|Qt::AlignLeft, date, &amp;r); r = option.rect.adjusted(imageSpace, 30, -10, 0); painter-&gt;setFont(QFont( "Lucida Grande", 18, QFont::Normal)); painter-&gt;drawText(r.left(), r.top(), r.width(), r.height(), Qt::AlignLeft, description, &amp;r); } QSize SessionListDelegate::sizeHint(const QStyleOptionViewItem &amp; option, const QModelIndex &amp; index) const { return QSize(200, 60); // very dumb value } SessionListDelegate::~SessionListDelegate() { // TODO Auto-generated destructor stub } </code></pre> <p>Calling code in mainapp.cpp:</p> <pre><code>ui.myList-&gt;setItemDelegate(new SessionListDelegate(ui.myList)); </code></pre> <p>Now, in the main QWidget form of my application UI, I have defined a style sheet which contains a style for all QListViews for the form:</p> <pre><code>QListView::item:selected { color: black; background-color: qlineargradient(spread:pad, x1:0, y1:1, x2:0, y2:0, stop:0 rgba(255, 255, 80, 255), stop:1 rgba(255, 255, 255, 255)); } </code></pre> <p>I would like to apply this style to the customized ListWidget, but I can't think of a way to make that happen. It seems like it should be a pretty common thing to do, but I can't find any examples anywhere.</p>
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