The Counter
is derived from a
tbx::TextChangedListener
and uses the
following code which is called when the text changes in the
WritableField
.
void Counter::text_changed(TextChangedEvent &event) { // _count is the DisplayField set in the auto_created // code above. // The event returns the new value of the text // Use the tbx::to_string utility as the display // field expects text, not an integer. _count.text(to_string(event.text().length())); }
Finally we just need to define the execute
for our ReverseCommand
as follows.
void ReverseCommand::execute() { // _reverse is the WritableField set in the auto_created // code above. // Get the current value of the WritableField std::string value = _reverse.text(); // Simple STL code to reverse a piece of text std::string reverse; reverse.append(value.rbegin(), value.rend()); // Set the value of the WritableField with the reversed text _reverse.text(reverse); }