File indexing completed on 2024-04-21 07:37:44

 /*
     SPDX-FileCopyrightText: 2010 Daniel Laidig <d.laidig@gmx.de>
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "mixedlettersmodewidget.h"
 #include "ui_practice_widget_written.h"
 
 #include <KColorScheme>
 #include <KRandom>
 #include <QFontMetrics>
 #include <QPainter>
 #include <QRandomGenerator>
 
 using namespace Practice;
 
 MixedLettersModeWidget::MixedLettersModeWidget(GuiFrontend *frontend, QWidget *parent)
     : WrittenPracticeWidget(frontend, parent)
 {
     m_ui->mixedSolutionLabel->show();
     connect(m_ui->answerEdit, &QLineEdit::textChanged, this, &MixedLettersModeWidget::updatePixmap);
 }
 
 void MixedLettersModeWidget::setSolutionFont(const QFont &font)
 {
     m_solutionFont = font;
     WrittenPracticeWidget::setSolutionFont(font);
 }
 
 void MixedLettersModeWidget::setQuestion(const QVariant &question)
 {
     m_question = question.toString();
     WrittenPracticeWidget::setQuestion(question);
 }
 
 void MixedLettersModeWidget::showQuestion()
 {
     WrittenPracticeWidget::showQuestion();
     updatePixmap();
 }
 
 void MixedLettersModeWidget::updatePixmap()
 {
     QFontMetrics fm(m_solutionFont);
     int charHeight = fm.height();
     int charWidth = fm.averageCharWidth();
     m_pixmap = QPixmap(charWidth * m_mixedSolution.length() * 2 + charWidth, charHeight * 3);
     m_pixmap.fill(QColor(0, 0, 0, 0));
 
     QPainter p(&m_pixmap);
     p.setFont(m_solutionFont);
     KColorScheme scheme(QPalette::Active);
     QPen defaultPen = p.pen();
     defaultPen.setColor(palette().color(QPalette::WindowText));
     QString enteredChars = m_ui->answerEdit->text();
     int i = 0;
     for (QChar ch : qAsConst(m_mixedSolution)) {
         int pos = enteredChars.indexOf(ch);
         if (pos != -1) {
             p.setPen(scheme.foreground(KColorScheme::InactiveText).color());
             enteredChars.remove(pos, 1);
         } else {
             p.setPen(defaultPen);
         }
         p.drawText(charWidth + charWidth * i * 2, charHeight + int(m_positions.at(i) * charHeight * 0.25), ch);
         i++;
     }
     m_ui->mixedSolutionLabel->setPixmap(m_pixmap);
     m_ui->mixedSolutionLabel->setMinimumSize(m_pixmap.size());
 }
 
 void MixedLettersModeWidget::setSolution(const QVariant &solution)
 {
     WrittenPracticeWidget::setSolution(solution);
     m_solution = solution.toString();
     QList<QChar> chars;
     for (QChar ch : qAsConst(m_solution)) {
         chars.append(ch);
     }
     KRandom::shuffle(chars);
     m_mixedSolution.clear();
     m_positions.clear();
     for (QChar ch : qAsConst(chars)) {
         m_mixedSolution.append(ch);
         m_positions.append(QRandomGenerator::global()->bounded(8));
     }
 }
 
 #include "moc_mixedlettersmodewidget.cpp"