Warning, file /education/parley/src/practice/summarybarwidget.cpp was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).

0001 /*
0002     SPDX-FileCopyrightText: 2010 Daniel Laidig <d.laidig@gmx.de>
0003     SPDX-License-Identifier: GPL-2.0-or-later
0004 */
0005 
0006 #include "summarybarwidget.h"
0007 
0008 #include <KColorScheme>
0009 #include <KLocalizedString>
0010 
0011 #include <QEvent>
0012 #include <QHBoxLayout>
0013 #include <QHelpEvent>
0014 #include <QLabel>
0015 #include <QPainter>
0016 #include <QPainterPath>
0017 
0018 using namespace Practice;
0019 
0020 SummaryBarWidget::SummaryBarWidget(QWidget *parent)
0021     : QWidget(parent)
0022 {
0023     setMinimumHeight(30);
0024     m_layout = new QHBoxLayout(this);
0025     setLayout(m_layout);
0026     layout()->setContentsMargins(0, layout()->contentsMargins().top() + BAR_HEIGHT, 0, 0);
0027     setupCaption();
0028 }
0029 
0030 void SummaryBarWidget::paintEvent(QPaintEvent *event)
0031 {
0032     QWidget::paintEvent(event);
0033 
0034     QPainter painter(this);
0035     QLinearGradient linearGrad(QPoint(0, 0), QPoint(rect().width(), 0));
0036 
0037     KColorScheme scheme(QPalette::Active);
0038     QColor correctColor = scheme.foreground(KColorScheme::PositiveText).color();
0039     QColor wrongColor = scheme.foreground(KColorScheme::NegativeText).color();
0040     QColor notAnsweredColor = scheme.foreground(KColorScheme::NormalText).color();
0041 
0042     if (!m_total) {
0043         return;
0044     }
0045     double correctPos = double(m_correct) / m_total;
0046     double wrongPos = correctPos + double(m_wrong) / m_total;
0047 
0048     double margin = double(2) / rect().width();
0049 
0050     if (m_correct > 0) {
0051         linearGrad.setColorAt(qMax(correctPos - margin, 0.0), correctColor);
0052     }
0053     if (m_wrong > 0) {
0054         linearGrad.setColorAt(qMin(correctPos + margin, 1.0), wrongColor);
0055         linearGrad.setColorAt(qMax(wrongPos - margin, 0.0), wrongColor);
0056     }
0057     if (m_notAnswered > 0) {
0058         linearGrad.setColorAt(qMin(wrongPos + margin, 1.0), notAnsweredColor);
0059     }
0060 
0061     QRect r = rect();
0062     r.setHeight(BAR_HEIGHT);
0063     r.adjust(1, 1, -1, -1);
0064 
0065     QPainterPath path;
0066     path.addRoundedRect(r, 3.0, 3.0);
0067     painter.setBrush(QBrush(linearGrad));
0068     painter.drawPath(path);
0069 }
0070 
0071 void SummaryBarWidget::setStatistics(int correct, int wrong, int notAnswered)
0072 {
0073     m_correct = correct;
0074     m_wrong = wrong;
0075     m_notAnswered = notAnswered;
0076     m_total = m_correct + m_wrong + m_notAnswered;
0077 
0078     m_correctCaption->setText(i18nc("test results", "%1 % correct", qRound(m_correct * 100.0 / m_total)));
0079     m_correctCaption->setToolTip(correctText());
0080     m_wrongCaption->setText(i18nc("test results", "%1 % wrong", qRound(m_wrong * 100.0 / m_total)));
0081     m_wrongCaption->setToolTip(wrongText());
0082     m_notAnsweredCaption->setText(i18nc("test results", "%1 % not answered", qRound(m_notAnswered * 100.0 / m_total)));
0083     m_notAnsweredCaption->setToolTip(notAnsweredText());
0084 
0085     update();
0086 }
0087 
0088 bool SummaryBarWidget::event(QEvent *event)
0089 {
0090     if (event->type() == QEvent::ToolTip) {
0091         QHelpEvent *helpEvent = static_cast<QHelpEvent *>(event);
0092         if (!m_total)
0093             return QWidget::event(event);
0094 
0095         if (helpEvent->y() >= BAR_HEIGHT) {
0096             return false;
0097         }
0098 
0099         int correctPos = int(rect().width() * double(m_correct) / m_total);
0100         int wrongPos = correctPos + int(rect().width() * double(m_wrong) / m_total);
0101         if (helpEvent->x() <= correctPos) {
0102             setToolTip(correctText());
0103         } else if (helpEvent->x() <= wrongPos) {
0104             setToolTip(wrongText());
0105         } else {
0106             setToolTip(notAnsweredText());
0107         }
0108     }
0109     return QWidget::event(event);
0110 }
0111 
0112 void SummaryBarWidget::setupCaption()
0113 {
0114     QLabel *correctColorLabel = new QLabel(this);
0115     m_layout->addWidget(correctColorLabel);
0116     m_correctCaption = new QLabel(this);
0117     m_layout->addWidget(m_correctCaption);
0118     m_layout->addSpacing(10);
0119     QLabel *wrongColorLabel = new QLabel(this);
0120     m_layout->addWidget(wrongColorLabel);
0121     m_wrongCaption = new QLabel(this);
0122     m_layout->addWidget(m_wrongCaption);
0123     m_layout->addSpacing(10);
0124     QLabel *notAnsweredColorLabel = new QLabel(this);
0125     m_layout->addWidget(notAnsweredColorLabel);
0126     m_notAnsweredCaption = new QLabel(this);
0127     m_layout->addWidget(m_notAnsweredCaption);
0128     m_layout->addStretch();
0129 
0130     KColorScheme scheme(QPalette::Active);
0131     correctColorLabel->setPixmap(captionPixmap(scheme.foreground(KColorScheme::PositiveText).color()));
0132     wrongColorLabel->setPixmap(captionPixmap(scheme.foreground(KColorScheme::NegativeText).color()));
0133     notAnsweredColorLabel->setPixmap(captionPixmap(scheme.foreground(KColorScheme::NormalText).color()));
0134 }
0135 
0136 QString SummaryBarWidget::correctText()
0137 {
0138     if (!m_total)
0139         return QString();
0140     return i18n("Answered correctly on the first attempt: %1 of %2 (%3 %)", m_correct, m_total, qRound(m_correct * 100.0 / m_total));
0141 }
0142 
0143 QString SummaryBarWidget::wrongText()
0144 {
0145     if (!m_total)
0146         return QString();
0147     return i18n("Answered wrong on the first attempt: %1 of %2 (%3 %)", m_wrong, m_total, qRound(m_wrong * 100.0 / m_total));
0148 }
0149 
0150 QString SummaryBarWidget::notAnsweredText()
0151 {
0152     if (!m_total)
0153         return QString();
0154     return i18n("Not answered during this practice: %1 of %2 (%3 %)", m_notAnswered, m_total, qRound(m_notAnswered * 100.0 / m_total));
0155 }
0156 
0157 QPixmap SummaryBarWidget::captionPixmap(QColor color)
0158 {
0159     QImage image(20, 20, QImage::Format_ARGB32_Premultiplied);
0160     image.fill(QColor(Qt::transparent).rgba());
0161     QPainter painter(&image);
0162     painter.setBrush(color);
0163     painter.setPen(Qt::black);
0164 
0165     QPainterPath path;
0166     path.addRoundedRect(image.rect().adjusted(0, 0, -1, -1), 3.0, 3.0);
0167     painter.drawPath(path);
0168     return QPixmap::fromImage(image);
0169 }