Wt

Hello,

I am having a derived Wt::WTableView and Wt::WAbstractTableModel in Wt3.3.10

I want to validate the input on a cell. But only when hovering on the cell I can see the title="Must be a number"

but the color is not changing like in other impelementation without table e.g. dialog

The code for creation is

Wt::WWidget* DoubleDelegate::createEditor(const Wt::WModelIndex &index,

Wt::WFlagsWt::ViewItemRenderFlag flags) const

{

(void) flags;

auto const result = new Wt::WContainerWidget();

result->setSelectable(true);

auto lineEdit = new Wt::WLineEdit(result);

auto validator = new Wt::WDoubleValidator(m_bottom, m_top);

lineEdit->setValidator(validator);

lineEdit->setText(asString(index.data(Wt::EditRole), textFormat()));

lineEdit->setPlaceholderText(asString(index.data(Wt::DisplayRole), textFormat()));

lineEdit->enterPressed().connect(boost::bind(&DoubleDelegate::doCloseEditor, this, result, true));

lineEdit->escapePressed().connect(boost::bind(&DoubleDelegate::doCloseEditor, this, result, false));

lineEdit->escapePressed().preventPropagation();

if (flags & Wt::RenderFocused)

{

lineEdit->setFocus(true);

}

// We use a layout so that the line edit fills the entire cell.

// Somehow, this does not work with konqueror, but it does respond

// properly to width, height being set to 100% !

Wt::WApplication *app = Wt::WApplication::instance();

if (app->environment().agent() != Wt::WEnvironment::Konqueror)

{

result->setLayout(new Wt::WHBoxLayout());

result~~layout()>setContentsMargins(1, 1, 1, 1);

resultlayout()~~>addWidget(lineEdit);

}

else

{

lineEdit->resize(Wt::WLength(100, Wt::WLength::Percentage), Wt::WLength(100, Wt::WLength::Percentage));

result->addWidget(lineEdit);

}

return result;

}

and output of three rows with first row having wrong input:

2.0000

3.0000

Thanks for comments on my code.