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6109737b9d
1. OutlineViewer: support section number; 2. Allow to close the file before opening with external program; 3. Skip end marker within a block marker;
113 lines
2.8 KiB
C++
113 lines
2.8 KiB
C++
#ifndef OUTLINEPROVIDER_H
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#define OUTLINEPROVIDER_H
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#include <QObject>
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#include <QSharedPointer>
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#include <QVector>
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namespace vnotex
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{
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typedef QVector<int> SectionNumber;
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// Toc content.
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struct Outline
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{
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struct Heading
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{
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Heading() = default;
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Heading(const QString &p_name, int p_level);
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bool operator==(const Heading &p_a) const;
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QString m_name;
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// Heading level, 1-based.
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int m_level = -1;
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};
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void clear();
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bool operator==(const Outline &p_a) const;
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bool isEmpty() const;
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QVector<Heading> m_headings;
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// 1-based.
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// -1 to disable section number by force.
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int m_sectionNumberBaseLevel = 1;
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bool m_sectionNumberEndingDot = true;
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};
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// Used to hold toc-related data of one ViewWindow.
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class OutlineProvider : public QObject
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{
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Q_OBJECT
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public:
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explicit OutlineProvider(QObject *p_parent = nullptr);
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virtual ~OutlineProvider();
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// Get the outline.
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const QSharedPointer<Outline> &getOutline() const;
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void setOutline(const QSharedPointer<Outline> &p_outline);
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// Get current heading index in outline.
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int getCurrentHeadingIndex() const;
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void setCurrentHeadingIndex(int p_idx);
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template <class T>
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static void makePerfectHeadings(const QVector<T> &p_headings, QVector<T> &p_perfectHeadings);
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static void increaseSectionNumber(SectionNumber &p_sectionNumber, int p_level, int p_baseLevel);
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static QString joinSectionNumber(const SectionNumber &p_sectionNumber, bool p_endingDot);
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signals:
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void outlineChanged();
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void currentHeadingChanged();
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void headingClicked(int p_idx);
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private:
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QSharedPointer<Outline> m_outline;
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int m_currentHeadingIndex = -1;
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};
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template <class T>
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void OutlineProvider::makePerfectHeadings(const QVector<T> &p_headings, QVector<T> &p_perfectHeadings)
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{
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p_perfectHeadings.clear();
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if (p_headings.isEmpty()) {
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return;
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}
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int baseLevel = INT_MAX;
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for (const auto &heading : p_headings) {
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if (heading.m_level < baseLevel) {
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baseLevel = heading.m_level;
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}
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}
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p_perfectHeadings.reserve(p_headings.size());
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int curLevel = baseLevel - 1;
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for (const auto &heading : p_headings) {
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while (heading.m_level > curLevel + 1) {
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curLevel += 1;
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// Insert empty level which is an invalid header.
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p_perfectHeadings.append(T(tr("[EMPTY]"), curLevel));
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}
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p_perfectHeadings.append(heading);
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curLevel = heading.m_level;
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}
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}
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}
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#endif // OUTLINEPROVIDER_H
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