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Qt: Improve find dialog
Add index of current line and word. Add case sensitivity checkbox.
This commit is contained in:
Megamouse
parent
36e1d664ea
commit
07f5b0aa5b
@ -1,6 +1,10 @@
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#include "stdafx.h"
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#include "find_dialog.h"
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#include <QPushButton>
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#include <QVBoxLayout>
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#include <QTextBlock>
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#include <QCheckBox>
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find_dialog::find_dialog(QPlainTextEdit* edit, QWidget *parent, Qt::WindowFlags f) : QDialog(parent, f), m_text_edit(edit)
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{
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@ -9,109 +13,159 @@ find_dialog::find_dialog(QPlainTextEdit* edit, QWidget *parent, Qt::WindowFlags
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m_find_bar = new QLineEdit();
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m_find_bar->setPlaceholderText(tr("Search..."));
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m_label_count_lines = new QLabel(tr("Counted in lines: -"));
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m_label_count_total = new QLabel(tr("Counted in total: -"));
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QCheckBox* cb_case_sensitive = new QCheckBox(tr("Case sensitive"));
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cb_case_sensitive->setChecked(m_case_sensitive);
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connect(cb_case_sensitive, &QCheckBox::toggled, this, [=](bool checked)
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{
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m_case_sensitive = checked;
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});
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m_find_first = new QPushButton(tr("First"));
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m_find_last = new QPushButton(tr("Last"));
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m_find_next = new QPushButton(tr("Next"));
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m_find_previous = new QPushButton(tr("Previous"));
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m_label_count_lines = new QLabel(tr("Line 0/0"));
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m_label_count_total = new QLabel(tr("Word 0/0"));
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QPushButton* find_first = new QPushButton(tr("First"));
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QPushButton* find_last = new QPushButton(tr("Last"));
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QPushButton* find_next = new QPushButton(tr("Next"));
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QPushButton* find_previous = new QPushButton(tr("Previous"));
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QHBoxLayout* find_layout = new QHBoxLayout();
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find_layout->addWidget(m_find_bar);
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find_layout->addWidget(cb_case_sensitive);
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QHBoxLayout* count_layout = new QHBoxLayout();
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count_layout->addWidget(m_label_count_lines);
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count_layout->addWidget(m_label_count_total);
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QHBoxLayout* button_layout = new QHBoxLayout();
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button_layout->addWidget(m_find_first);
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button_layout->addWidget(m_find_last);
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button_layout->addWidget(m_find_previous);
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button_layout->addWidget(m_find_next);
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button_layout->addWidget(find_first);
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button_layout->addWidget(find_last);
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button_layout->addWidget(find_previous);
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button_layout->addWidget(find_next);
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QVBoxLayout* layout = new QVBoxLayout();
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layout->addWidget(m_find_bar);
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layout->addLayout(find_layout);
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layout->addLayout(count_layout);
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layout->addLayout(button_layout);
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setLayout(layout);
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connect(m_find_first, &QPushButton::clicked, this, &find_dialog::find_first);
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connect(m_find_last, &QPushButton::clicked, this, &find_dialog::find_last);
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connect(m_find_next, &QPushButton::clicked, this, &find_dialog::find_next);
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connect(m_find_previous, &QPushButton::clicked, this, &find_dialog::find_previous);
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connect(find_first, &QPushButton::clicked, this, [this](){ find(find_type::first); });
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connect(find_last, &QPushButton::clicked, this, [this](){ find(find_type::last); });
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connect(find_next, &QPushButton::clicked, this, [this](){ find(find_type::next); });
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connect(find_previous, &QPushButton::clicked, this, [this](){ find(find_type::prev); });
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m_find_next->setDefault(true);
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find_next->setDefault(true);
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show();
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}
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int find_dialog::count_all()
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void find_dialog::find(find_type type)
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{
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m_count_lines = 0;
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m_count_total = 0;
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m_current_line = 0;
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m_current_index = 0;
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if (!m_text_edit || m_find_bar->text().isEmpty())
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{
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show_count();
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return 0;
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return;
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}
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const QTextDocument::FindFlags flags = m_case_sensitive ? QTextDocument::FindCaseSensitively : QTextDocument::FindFlag{};
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std::map<int /*block*/, std::map<int /*line*/, std::vector<int> /*pos*/>> block_indices;
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const QTextCursor old_cursor = m_text_edit->textCursor();
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m_text_edit->moveCursor(QTextCursor::Start);
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int old_line_index = -1;
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const QString text = m_find_bar->text();
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while (m_text_edit->find(m_find_bar->text()))
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while (m_text_edit->find(text, flags))
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{
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m_count_total++;
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const int new_line_index = m_text_edit->textCursor().blockNumber();
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if (new_line_index != old_line_index)
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const QTextCursor cursor = m_text_edit->textCursor();
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const QTextBlock block = cursor.block();
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const QTextLayout* layout = block.layout();
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const int relative_pos = cursor.position() - block.position();
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const QTextLine line = layout->lineForTextPosition(relative_pos);
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const int pos_in_line = relative_pos - line.textStart();
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block_indices[cursor.blockNumber()][line.lineNumber()].push_back(pos_in_line);
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}
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switch (type)
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{
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case find_type::first:
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{
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m_text_edit->moveCursor(QTextCursor::Start);
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m_text_edit->find(text, flags);
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break;
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}
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case find_type::last:
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{
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m_text_edit->moveCursor(QTextCursor::End);
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m_text_edit->find(text, flags | QTextDocument::FindBackward);
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break;
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}
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case find_type::next:
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{
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m_text_edit->setTextCursor(old_cursor);
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m_text_edit->find(text, flags);
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break;
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}
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case find_type::prev:
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{
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m_text_edit->setTextCursor(old_cursor);
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m_text_edit->find(text, flags | QTextDocument::FindBackward);
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break;
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}
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}
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const QTextCursor cursor = m_text_edit->textCursor();
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const QTextBlock block = cursor.block();
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const QTextLayout* layout = block.layout();
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const int relative_pos = cursor.position() - block.position();
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const QTextLine line = layout->lineForTextPosition(relative_pos);
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const int pos_in_line = relative_pos - line.textStart();
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const int current_line = line.lineNumber();
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const int current_pos = pos_in_line;
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int word_count = 0;
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for (const auto& [block, lines] : block_indices)
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{
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const bool is_current_block = block == cursor.blockNumber();
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for (const auto& [line, positions] : lines)
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{
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const bool is_current_line = line == current_line;
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m_count_lines++;
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old_line_index = new_line_index;
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int pos_count = 0;
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for (int pos : positions)
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{
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pos_count++;
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word_count++;
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if (is_current_block && is_current_line && pos == current_pos)
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{
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m_current_line = m_count_lines;
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m_current_index = word_count;
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}
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}
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}
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}
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m_text_edit->setTextCursor(old_cursor);
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show_count();
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return m_count_total;
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}
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void find_dialog::find_first()
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{
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if (count_all() <= 0)
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return;
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m_text_edit->moveCursor(QTextCursor::Start);
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m_text_edit->find(m_find_bar->text());
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}
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void find_dialog::find_last()
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{
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if (count_all() <= 0)
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return;
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m_text_edit->moveCursor(QTextCursor::End);
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m_text_edit->find(m_find_bar->text(), QTextDocument::FindBackward);
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}
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void find_dialog::find_next()
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{
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if (count_all() <= 0)
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return;
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m_text_edit->find(m_find_bar->text());
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}
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void find_dialog::find_previous()
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{
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if (count_all() <= 0)
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return;
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m_text_edit->find(m_find_bar->text(), QTextDocument::FindBackward);
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}
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void find_dialog::show_count() const
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{
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m_label_count_lines->setText(tr("Counted in lines: %0").arg(m_count_lines));
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m_label_count_total->setText(tr("Counted in total: %0").arg(m_count_total));
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m_label_count_lines->setText(tr("Line %0/%1").arg(m_current_line).arg(m_count_lines));
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m_label_count_total->setText(tr("Word %0/%1").arg(m_current_index).arg(m_count_total));
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}
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@ -3,7 +3,6 @@
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#include <QDialog>
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#include <QPlainTextEdit>
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#include <QLineEdit>
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#include <QPushButton>
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#include <QLabel>
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class find_dialog : public QDialog
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@ -14,22 +13,26 @@ public:
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find_dialog(QPlainTextEdit* edit, QWidget *parent = Q_NULLPTR, Qt::WindowFlags f = Qt::WindowFlags());
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private:
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enum class find_type
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{
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first,
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last,
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next,
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prev
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};
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void find(find_type type);
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void show_count() const;
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int m_count_lines = 0;
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int m_count_total = 0;
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int m_current_line = 0;
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int m_current_index = 0;
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bool m_case_sensitive = false;
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QLabel* m_label_count_lines;
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QLabel* m_label_count_total;
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QPlainTextEdit* m_text_edit;
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QLineEdit* m_find_bar;
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QPushButton* m_find_first;
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QPushButton* m_find_last;
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QPushButton* m_find_next;
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QPushButton* m_find_previous;
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private Q_SLOTS:
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int count_all();
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void find_first();
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void find_last();
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void find_next();
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void find_previous();
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void show_count() const;
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};
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