132 lines
4.0 KiB
C++
132 lines
4.0 KiB
C++
/*
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* nextpnr -- Next Generation Place and Route
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*
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* Copyright (C) 2018 Miodrag Milanovic <miodrag@symbioticeda.com>
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* Copyright (C) 2018 Alex Tsui
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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#include "line_editor.h"
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#include <QKeyEvent>
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#include <QToolTip>
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#include "ColumnFormatter.h"
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#include "Utils.h"
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#include "pyinterpreter.h"
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NEXTPNR_NAMESPACE_BEGIN
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LineEditor::LineEditor(ParseHelper *helper, QWidget *parent) : QLineEdit(parent), index(0), parseHelper(helper)
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{
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setContextMenuPolicy(Qt::CustomContextMenu);
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QAction *clearAction = new QAction("Clear &history", this);
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clearAction->setStatusTip("Clears line edit history");
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connect(clearAction, SIGNAL(triggered()), this, SLOT(clearHistory()));
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contextMenu = createStandardContextMenu();
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contextMenu->addSeparator();
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contextMenu->addAction(clearAction);
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connect(this, SIGNAL(returnPressed()), SLOT(textInserted()));
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connect(this, SIGNAL(customContextMenuRequested(const QPoint)), this, SLOT(showContextMenu(const QPoint)));
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}
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void LineEditor::keyPressEvent(QKeyEvent *ev)
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{
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if (ev->key() == Qt::Key_Up || ev->key() == Qt::Key_Down) {
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QToolTip::hideText();
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if (lines.empty())
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return;
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printf("Key_Up\n");
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if (ev->key() == Qt::Key_Up)
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index--;
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if (ev->key() == Qt::Key_Down)
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index++;
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if (index < 0)
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index = 0;
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if (index >= lines.size()) {
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index = lines.size();
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clear();
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return;
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}
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setText(lines[index]);
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} else if (ev->key() == Qt::Key_Escape) {
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QToolTip::hideText();
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clear();
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return;
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} else if (ev->key() == Qt::Key_Tab) {
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autocomplete();
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return;
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}
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QToolTip::hideText();
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QLineEdit::keyPressEvent(ev);
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}
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// This makes TAB work
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bool LineEditor::focusNextPrevChild(bool next) { return false; }
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void LineEditor::textInserted()
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{
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if (lines.empty() || lines.back() != text())
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lines += text();
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if (lines.size() > 100)
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lines.removeFirst();
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index = lines.size();
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clear();
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Q_EMIT textLineInserted(lines.back());
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}
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void LineEditor::showContextMenu(const QPoint &pt) { contextMenu->exec(mapToGlobal(pt)); }
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void LineEditor::clearHistory()
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{
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lines.clear();
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index = 0;
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clear();
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}
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void LineEditor::autocomplete()
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{
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QString line = text();
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const std::list<std::string> &suggestions = pyinterpreter_suggest(line.toStdString());
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if (suggestions.size() == 1) {
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line = suggestions.back().c_str();
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} else {
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// try to complete to longest common prefix
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std::string prefix = LongestCommonPrefix(suggestions.begin(), suggestions.end());
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if (prefix.size() > (size_t)line.size()) {
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line = prefix.c_str();
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} else {
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ColumnFormatter fmt;
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fmt.setItems(suggestions.begin(), suggestions.end());
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fmt.format(width() / 5);
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QString out = "";
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for (auto &it : fmt.formattedOutput()) {
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if (!out.isEmpty())
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out += "\n";
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out += it.c_str();
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}
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QToolTip::setFont(font());
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if (!out.trimmed().isEmpty())
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QToolTip::showText(mapToGlobal(QPoint(0, 0)), out);
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}
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}
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// set up the next line on the console
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setText(line);
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}
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NEXTPNR_NAMESPACE_END
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