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made gxs comments multi-lines

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This commit is contained in:
csoler 2017-05-16 10:24:23 +02:00
parent 2bc36bc06c
commit fd136c1a30
1 changed files with 68 additions and 0 deletions
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68
retroshare-gui/src/gui/gxs/GxsCommentTreeWidget.cpp
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@ -22,8 +22,12 @@
*/
#include <QMimeData>
#include <QTextDocument>
#include <QAbstractTextDocumentLayout>
#include <QApplication>
#include <QDateTime>
#include <QMenu>
#include <QPainter>
#include "gui/common/RSElidedItemDelegate.h"
#include "gui/gxs/GxsCommentTreeWidget.h"
@ -52,6 +56,67 @@
#define IMAGE_VOTEUP ":/images/vote_up.png"
#define IMAGE_VOTEDOWN ":/images/vote_down.png"
// This class allows to draw the item using an appropriate size
class MultiLinesCommentDelegate: public QStyledItemDelegate
{
public:
MultiLinesCommentDelegate(QFontMetricsF f) : qf(f){}
QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
{
return index.data(Qt::UserRole+1).toSize() ;
}
virtual void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
Q_ASSERT(index.isValid());
QStyleOptionViewItemV4 opt = option;
initStyleOption(&opt, index);
// disable default icon
opt.icon = QIcon();
opt.text = QString();
// draw default item
QApplication::style()->drawControl(QStyle::CE_ItemViewItem, &opt, painter, 0);
const QRect r = option.rect;
QTextDocument td ;
td.setHtml("<html>"+index.data(Qt::DisplayRole).toString()+"</html>");
QSizeF s = td.documentLayout()->documentSize();
int m = QFontMetricsF(QFont()).height();
QSize full_area(std::min(r.width(),(int)s.width())+m,std::min(r.height(),(int)s.height())+m);
QPixmap px(full_area.width(),full_area.height());
px.fill();
QPainter p(&px) ;
p.setRenderHint(QPainter::Antialiasing);
QPainterPath path ;
//path.addRoundedRect(QRectF(m/4.0f,m/4.0f,s.width()+m/2.0,s.height()+m/2.0),m,m) ;
path.addRoundedRect(QRectF(m/7.0,m/7.0,s.width()+m/2.0,s.height()+m/2.0),m,m) ;
QPen pen(Qt::gray,m/7.0f);
p.setPen(pen);
p.fillPath(path,QColor::fromRgb(250,230,200)); // Would be nice to vary the color according to the post author
p.drawPath(path);
QAbstractTextDocumentLayout::PaintContext ctx;
ctx.clip = QRectF(0,0,s.width(),s.height());
p.translate(QPointF(m/2.0,m/2.0));
td.documentLayout()->draw( &p, ctx );
painter->drawPixmap(r.topLeft(),px);
const_cast<QAbstractItemModel*>(index.model())->setData(index,px.size(),Qt::UserRole+1);
}
private:
QFontMetricsF qf;
};
GxsCommentTreeWidget::GxsCommentTreeWidget(QWidget *parent)
:QTreeWidget(parent), mTokenQueue(NULL), mRsTokenService(NULL), mCommentService(NULL)
{
@ -62,6 +127,9 @@ GxsCommentTreeWidget::GxsCommentTreeWidget(QWidget *parent)
itemDelegate->setSpacing(QSize(0, 2));
setItemDelegate(itemDelegate);
setWordWrap(true);
setItemDelegateForColumn(PCITEM_COLUMN_COMMENT,new MultiLinesCommentDelegate(QFontMetricsF(font()))) ;
// QFont font = QFont("ARIAL", 10);
// font.setBold(true);