LettersWidget.C

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/*
 * Copyright (C) 2011 Emweb bv, Herent, Belgium
 *
 * See the LICENSE file for terms of use.
 */
 
#include "LettersWidget.h"
 
#include <Wt/WApplication.h>
#include <Wt/WEvent.h>
#include <Wt/WPushButton.h>
#include <Wt/WTable.h>
 
using namespace Wt;
 
LettersWidget::LettersWidget()
{
  impl_ = setNewImplementation<WTable>();
 
  impl_->resize(13*30, WLength::Auto);
 
  for (unsigned int i = 0; i < 26; ++i) {
    std::string c(1, 'A' + i);
    auto character = impl_->elementAt(i / 13, i % 13)->addNew<WPushButton>(c);
    letterButtons_.push_back(character);
    character->resize(WLength(30), WLength::Auto);
 
    character->clicked().connect
      (std::bind(&LettersWidget::processButton, this, character));
 
    connections_.push_back(WApplication::instance()->globalKeyPressed().connect
      (std::bind(&LettersWidget::processButtonPushed, this, std::placeholders::_1, character)));
  }
}
 
LettersWidget::~LettersWidget()
{
  for (auto &connection : connections_)
    connection.disconnect();
}
 
void LettersWidget::processButton(WPushButton *b)
{
  b->disable();
  letterPushed_.emit(b->text().toUTF8()[0]);
}
 
void LettersWidget::processButtonPushed(const WKeyEvent &e, WPushButton *b)
{
  if (isHidden())
    return;
 
  if(e.key() == static_cast<Key>(b->text().toUTF8()[0]))
    processButton(b);
}
 
void LettersWidget::reset()
{
  for (auto& letterButton : letterButtons_)
    letterButton->enable();
 
  show();
}