diff options
Diffstat (limited to 'gui/line_editor.cc')
| -rw-r--r-- | gui/line_editor.cc | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/gui/line_editor.cc b/gui/line_editor.cc new file mode 100644 index 00000000..b5ed955f --- /dev/null +++ b/gui/line_editor.cc @@ -0,0 +1,67 @@ +#include "line_editor.h" + +#include <QKeyEvent> + +LineEditor::LineEditor(QWidget *parent) : QLineEdit(parent), index(0) +{ + setContextMenuPolicy(Qt::CustomContextMenu); + QAction *clearAction = new QAction("Clear &history", this); + clearAction->setStatusTip("Clears line edit history"); + connect(clearAction, SIGNAL(triggered()), this, SLOT(clearHistory())); + contextMenu = createStandardContextMenu(); + contextMenu->addSeparator(); + contextMenu->addAction(clearAction); + + connect(this, SIGNAL(returnPressed()), SLOT(textInserted())); + connect(this, SIGNAL(customContextMenuRequested(const QPoint)), this, + SLOT(showContextMenu(const QPoint))); +} + +void LineEditor::keyPressEvent(QKeyEvent *ev) +{ + if (ev->key() == Qt::Key_Up || ev->key() == Qt::Key_Down) { + if (lines.empty()) + return; + + if (ev->key() == Qt::Key_Up) + index--; + if (ev->key() == Qt::Key_Down) + index++; + + if (index < 0) + index = 0; + if (index >= lines.size()) { + index = lines.size(); + clear(); + return; + } + setText(lines[index]); + } else if (ev->key() == Qt::Key_Escape) { + clear(); + return; + } + QLineEdit::keyPressEvent(ev); +} + +void LineEditor::textInserted() +{ + if (lines.empty() || lines.back() != text()) + lines += text(); + if (lines.size() > 100) + lines.removeFirst(); + index = lines.size(); + clear(); + Q_EMIT textLineInserted(lines.back()); +} + +void LineEditor::showContextMenu(const QPoint &pt) +{ + contextMenu->exec(mapToGlobal(pt)); +} + +void LineEditor::clearHistory() +{ + lines.clear(); + index = 0; + clear(); +}
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