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Add WTableView::visibleRowCount #239

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Add WTableView::visibleRowCount #239

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8 changes: 8 additions & 0 deletions src/Wt/WTableView.C
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Original file line number Diff line number Diff line change
Expand Up @@ -1893,6 +1893,14 @@ WModelIndex WTableView::modelIndexAt(WWidget *widget) const
return WModelIndex();
}

int WTableView::visibleRowCount() const
{
if (ajaxMode())
return viewportHeight_ / static_cast<int>(rowHeight().toPixels());
else
return renderedLastRow_ - renderedFirstRow_;
}

WModelIndex WTableView::translateModelIndex(bool headerColumns,
const WMouseEvent& event)
{
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6 changes: 6 additions & 0 deletions src/Wt/WTableView.h
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Expand Up @@ -158,6 +158,12 @@ class WT_API WTableView : public WAbstractItemView
*/
WModelIndex modelIndexAt(WWidget *widget) const;

/*! \brief Returns the number of entirely visible rows.
*
* \note In plain HTML mode, it returns a guess based on the rendered rows.
*/
int visibleRowCount() const;

virtual EventSignal<WScrollEvent>& scrolled() override;

#ifdef WT_TEST_VISIBILITY
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