Initial commit

2026-07-12 14:22:00 +04:00
commit 49ecd4784c
90 changed files with 6910 additions and 0 deletions
@@ -0,0 +1,112 @@
+#include "textBrowserWidget.h"
+
+TextBrowserWidget::TextBrowserWidget(const QString &xmlFile, QWidget *pWidget)
+    : QWidget(pWidget)
+{
+    setupUi(dynamic_cast<QWidget *>(this));
+
+    connect( m_main, &QPushButton::clicked, this, &TextBrowserWidget::slotClickedMain );
+    connect( m_next, &QPushButton::clicked, this, &TextBrowserWidget::slotClickedNext );
+    connect( m_previous, &QPushButton::clicked, this, &TextBrowserWidget::slotClickedPrev );
+    connect( m_textBrowser, &QTextBrowser::sourceChanged, this, &TextBrowserWidget::slotPageChanged );
+
+    m_textBrowser->setOpenExternalLinks(true);
+
+    unpack(xmlFile);
+}
+
+/*
+ *  HTML theory
+*/
+
+inline void TextBrowserWidget::slotPageChanged(const QUrl &url) {
+    QString value = url.toString().section('/', -1);
+    auto iterator = std::find_if(m_htmlPages.cbegin(), m_htmlPages.cend()
+                              , [value](const QString &other)->bool {
+        return ( other.section('/', -1) == value );
+    });
+    if(iterator == m_htmlPages.cend()) {
+        m_textBrowser->clear();
+        return;
+    }
+
+    m_currentIndexPage = iterator - m_htmlPages.cbegin();
+    bool isMainPage = (m_currentIndexPage == 0);
+    m_main->setDisabled(isMainPage);
+    m_previous->setEnabled( isMainPage ? false : m_currentIndexPage not_eq 1 );
+    m_next->setEnabled( isMainPage ? false : m_currentIndexPage not_eq (m_htmlPages.size() - 1) );
+}
+
+inline bool TextBrowserWidget::unpack(const QString &xmlFileName) {
+    QDomDocument xmlDocument;
+
+    QFile xmlFile(xmlFileName);
+    if(not xmlFile.open(QIODevice::ReadOnly)) {
+        return false;
+    }
+
+    bool isSet = xmlDocument.setContent(&xmlFile);
+    xmlFile.close();
+
+    if(not isSet) {
+        return false;
+    }
+
+    QDomElement infoNode = xmlDocument.firstChild().nextSiblingElement("info");
+
+    QDomElement currentDirectoryElement = infoNode.firstChildElement("directory");
+    QStringList searchPaths;
+    while (not currentDirectoryElement.isNull()) {
+        searchPaths.append(currentDirectoryElement.text());
+        currentDirectoryElement = currentDirectoryElement.nextSiblingElement("directory");
+    }
+
+    QDomElement currentPage = infoNode.firstChildElement("order").firstChildElement("page");
+    if(currentPage.isNull()) {
+        return false;
+    }
+
+    QStringList result;
+    QString currentTagName;
+    bool isExists;
+    while(not currentPage.isNull()) {
+        currentTagName = currentPage.text();
+        isExists = false;
+
+        for(const QString &name : searchPaths) {
+            if(QDir(name).exists(currentTagName)) {
+                isExists = true;
+                break;
+            }
+        }
+
+        if(not isExists) {
+            return false;
+        }
+        result.push_back(currentTagName);
+        currentPage = currentPage.nextSiblingElement("page");
+    }
+
+    m_textBrowser->setSearchPaths(searchPaths);
+    m_htmlPages = result;
+
+    return setSourceMainPage();
+}
+
+inline void TextBrowserWidget::slotClickedMain() {
+    if(m_currentIndexPage not_eq 0) {
+        m_textBrowser->setSource(m_htmlPages.front());
+    }
+}
+
+inline void TextBrowserWidget::slotClickedPrev() {
+    if(m_currentIndexPage not_eq 1) {
+        m_textBrowser->setSource(m_htmlPages[--m_currentIndexPage]);
+    }
+}
+
+inline void TextBrowserWidget::slotClickedNext() {
+    if(m_currentIndexPage not_eq (m_htmlPages.size() - 1)) {
+        m_textBrowser->setSource(m_htmlPages[++m_currentIndexPage]);
+    }
+}
@@ -0,0 +1,50 @@
+#ifndef THEORY_WIDGET_H
+#define THEORY_WIDGET_H
+
+#include "ui_textBrowserWidget.h"
+
+#include <QWidget>
+#include <QFile>
+#include <QtXml>
+
+class TextBrowserWidget : public QWidget
+                        , protected Ui::TextBrowserWidget
+{
+private:
+    /*
+     *  HTML
+    */
+    QStringList m_htmlPages;
+    int m_currentIndexPage;
+
+public:
+    TextBrowserWidget(const QString &xmlFile = {}
+                      , QWidget *pWidget = nullptr);
+
+public:
+    bool unpack(const QString &xmlFile);
+    void setFontPointSize(int size) {
+        QFont font = m_textBrowser->font();
+        font.setPointSize(size);
+        m_textBrowser->setFont(font);
+    }
+
+private:
+    /*
+     *  Business logic
+    */
+    bool setSourceMainPage() {
+        if(not m_htmlPages.isEmpty()) {
+            m_textBrowser->setSource( QUrl( m_htmlPages.front() ) );
+            return true;
+        }
+        return false;
+    }
+
+private slots:
+    void slotPageChanged(const QUrl &url);
+    void slotClickedMain();
+    void slotClickedPrev();
+    void slotClickedNext();
+};
+#endif // THEORY_WIDGET_H