mirror of
https://git.wownero.com/wowlet/wowlet.git
synced 2024-08-15 01:03:14 +00:00
169 lines
5.9 KiB
C++
169 lines
5.9 KiB
C++
/****************************************************************************
|
|
**
|
|
** Copyright (C) 2016 The Qt Company Ltd.
|
|
** Contact: https://www.qt.io/licensing/
|
|
**
|
|
** This file is part of the examples of the Qt Toolkit.
|
|
**
|
|
** $QT_BEGIN_LICENSE:BSD$
|
|
** Commercial License Usage
|
|
** Licensees holding valid commercial Qt licenses may use this file in
|
|
** accordance with the commercial license agreement provided with the
|
|
** Software or, alternatively, in accordance with the terms contained in
|
|
** a written agreement between you and The Qt Company. For licensing terms
|
|
** and conditions see https://www.qt.io/terms-conditions. For further
|
|
** information use the contact form at https://www.qt.io/contact-us.
|
|
**
|
|
** BSD License Usage
|
|
** Alternatively, you may use this file under the terms of the BSD license
|
|
** as follows:
|
|
**
|
|
** "Redistribution and use in source and binary forms, with or without
|
|
** modification, are permitted provided that the following conditions are
|
|
** met:
|
|
** * Redistributions of source code must retain the above copyright
|
|
** notice, this list of conditions and the following disclaimer.
|
|
** * Redistributions in binary form must reproduce the above copyright
|
|
** notice, this list of conditions and the following disclaimer in
|
|
** the documentation and/or other materials provided with the
|
|
** distribution.
|
|
** * Neither the name of The Qt Company Ltd nor the names of its
|
|
** contributors may be used to endorse or promote products derived
|
|
** from this software without specific prior written permission.
|
|
**
|
|
**
|
|
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
|
|
**
|
|
** $QT_END_LICENSE$
|
|
**
|
|
****************************************************************************/
|
|
|
|
#include "textedit.h"
|
|
#include <QCompleter>
|
|
#include <QKeyEvent>
|
|
#include <QAbstractItemView>
|
|
#include <QtDebug>
|
|
#include <QApplication>
|
|
#include <QModelIndex>
|
|
#include <QAbstractItemModel>
|
|
#include <QScrollBar>
|
|
|
|
|
|
TextEdit::TextEdit(QWidget *parent) : QTextEdit(parent) { }
|
|
|
|
TextEdit::~TextEdit() { }
|
|
|
|
void TextEdit::setCompleter(QCompleter *completer) {
|
|
if (c)
|
|
c->disconnect(this);
|
|
|
|
c = completer;
|
|
|
|
if (!c)
|
|
return;
|
|
|
|
c->setWidget(this);
|
|
c->setCompletionMode(QCompleter::PopupCompletion);
|
|
c->setCaseSensitivity(Qt::CaseInsensitive);
|
|
QObject::connect(c, QOverload<const QString &>::of(&QCompleter::activated),
|
|
this, &TextEdit::insertCompletion);
|
|
}
|
|
|
|
QCompleter *TextEdit::completer() const {
|
|
return c;
|
|
}
|
|
|
|
void TextEdit::insertCompletion(const QString &completion) {
|
|
if (c->widget() != this)
|
|
return;
|
|
QTextCursor tc = textCursor();
|
|
int extra = completion.length() - c->completionPrefix().length();
|
|
tc.movePosition(QTextCursor::Left);
|
|
tc.movePosition(QTextCursor::EndOfWord);
|
|
tc.insertText(completion.right(extra));
|
|
setTextCursor(tc);
|
|
}
|
|
|
|
QString TextEdit::textUnderCursor() const {
|
|
QTextCursor tc = textCursor();
|
|
tc.select(QTextCursor::WordUnderCursor);
|
|
return tc.selectedText();
|
|
}
|
|
|
|
void TextEdit::focusInEvent(QFocusEvent *e) {
|
|
if (c)
|
|
c->setWidget(this);
|
|
QTextEdit::focusInEvent(e);
|
|
}
|
|
|
|
void TextEdit::keyPressEvent(QKeyEvent *e) {
|
|
if (c && c->popup()->isVisible()) {
|
|
// The following keys are forwarded by the completer to the widget
|
|
switch (e->key()) {
|
|
case Qt::Key_Enter:
|
|
case Qt::Key_Return:
|
|
case Qt::Key_Escape:
|
|
case Qt::Key_Tab:
|
|
case Qt::Key_Backtab:
|
|
e->ignore();
|
|
return; // let the completer do default behavior
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
const bool isShortcut = (e->modifiers().testFlag(Qt::ControlModifier) && e->key() == Qt::Key_E); // CTRL+E
|
|
if (!c || !isShortcut) // do not process the shortcut when we have a completer
|
|
QTextEdit::keyPressEvent(e);
|
|
|
|
const bool ctrlOrShift = e->modifiers().testFlag(Qt::ControlModifier) ||
|
|
e->modifiers().testFlag(Qt::ShiftModifier);
|
|
if (!c || (ctrlOrShift && e->text().isEmpty()))
|
|
return;
|
|
|
|
static QString eow("~!@#$%^&*()_+{}|:\"<>?,./;'[]\\-="); // end of word
|
|
const bool hasModifier = (e->modifiers() != Qt::NoModifier) && !ctrlOrShift;
|
|
QString completionPrefix = textUnderCursor();
|
|
|
|
if (!isShortcut && (hasModifier || e->text().isEmpty()|| completionPrefix.length() < 3
|
|
|| eow.contains(e->text().right(1)))) {
|
|
c->popup()->hide();
|
|
return;
|
|
}
|
|
|
|
if (completionPrefix != c->completionPrefix()) {
|
|
c->setCompletionPrefix(completionPrefix);
|
|
c->popup()->setCurrentIndex(c->completionModel()->index(0, 0));
|
|
}
|
|
QRect cr = cursorRect();
|
|
cr.setWidth(c->popup()->sizeHintForColumn(0)
|
|
+ c->popup()->verticalScrollBar()->sizeHint().width());
|
|
c->complete(cr); // popup it up!
|
|
}
|
|
|
|
QAbstractItemModel *TextEdit::modelFromFile(const QString& fileName, QCompleter *completer) {
|
|
QFile file(fileName);
|
|
if (!file.open(QFile::ReadOnly))
|
|
return new QStringListModel(completer);
|
|
|
|
QStringList words;
|
|
|
|
while (!file.atEnd()) {
|
|
QByteArray line = file.readLine();
|
|
if (!line.isEmpty())
|
|
words << QString::fromUtf8(line.trimmed());
|
|
}
|
|
|
|
return new QStringListModel(words, completer);
|
|
}
|