154 lines
4.9 KiB
C++
Executable File
154 lines
4.9 KiB
C++
Executable File
/****************************************************************************
|
|
**
|
|
** Copyright (C) 2015 The Qt Company Ltd.
|
|
** Contact: http://www.qt.io/licensing/
|
|
**
|
|
** This file is part of the examples of the Qt Toolkit.
|
|
**
|
|
** $QT_BEGIN_LICENSE:BSD$
|
|
** 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 <QtWidgets>
|
|
#include "theme.h"
|
|
#include "scripteditwidget.h"
|
|
|
|
|
|
ScriptEditWidget::ScriptEditWidget(QWidget *parent) : QPlainTextEdit(parent)
|
|
{
|
|
connect(this, &QPlainTextEdit::textChanged, this, [&]() {
|
|
emit scriptChanged(toPlainText());
|
|
});
|
|
|
|
m_lineNumberArea = new LineNumberArea(this);
|
|
|
|
connect(this, SIGNAL(blockCountChanged(int)), this, SLOT(updateLineNumberAreaWidth(int)));
|
|
connect(this, SIGNAL(updateRequest(QRect,int)), this, SLOT(updateLineNumberArea(QRect,int)));
|
|
connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(highlightCurrentLine()));
|
|
|
|
updateLineNumberAreaWidth(0);
|
|
highlightCurrentLine();
|
|
}
|
|
|
|
|
|
|
|
int ScriptEditWidget::lineNumberAreaWidth()
|
|
{
|
|
int digits = 1;
|
|
int max = qMax(1, blockCount());
|
|
while (max >= 10) {
|
|
max /= 10;
|
|
++digits;
|
|
}
|
|
|
|
int space = 3 + fontMetrics().width(QLatin1Char('9')) * digits;
|
|
|
|
return space;
|
|
}
|
|
|
|
|
|
|
|
void ScriptEditWidget::updateLineNumberAreaWidth(int /* newBlockCount */)
|
|
{
|
|
setViewportMargins(lineNumberAreaWidth(), 0, 0, 0);
|
|
}
|
|
|
|
|
|
|
|
void ScriptEditWidget::updateLineNumberArea(const QRect &rect, int dy)
|
|
{
|
|
if (dy)
|
|
m_lineNumberArea->scroll(0, dy);
|
|
else
|
|
m_lineNumberArea->update(0, rect.y(), m_lineNumberArea->width(), rect.height());
|
|
|
|
if (rect.contains(viewport()->rect()))
|
|
updateLineNumberAreaWidth(0);
|
|
}
|
|
|
|
|
|
|
|
void ScriptEditWidget::resizeEvent(QResizeEvent *e)
|
|
{
|
|
QPlainTextEdit::resizeEvent(e);
|
|
|
|
QRect cr = contentsRect();
|
|
m_lineNumberArea->setGeometry(QRect(cr.left(), cr.top(), lineNumberAreaWidth(), cr.height()));
|
|
}
|
|
|
|
|
|
|
|
void ScriptEditWidget::highlightCurrentLine()
|
|
{
|
|
QList<QTextEdit::ExtraSelection> extraSelections;
|
|
|
|
if (!isReadOnly()) {
|
|
QTextEdit::ExtraSelection selection;
|
|
|
|
QColor lineColor = QColor(0x24, 0x24, 0x24).lighter(160);
|
|
|
|
selection.format.setBackground(lineColor);
|
|
selection.format.setProperty(QTextFormat::FullWidthSelection, true);
|
|
selection.cursor = textCursor();
|
|
selection.cursor.clearSelection();
|
|
extraSelections.append(selection);
|
|
}
|
|
|
|
setExtraSelections(extraSelections);
|
|
}
|
|
|
|
void ScriptEditWidget::lineNumberAreaPaintEvent(QPaintEvent *event)
|
|
{
|
|
QPainter painter(m_lineNumberArea);
|
|
painter.fillRect(event->rect(), QColor(0x24, 0x24, 0x24));
|
|
|
|
|
|
QTextBlock block = firstVisibleBlock();
|
|
int blockNumber = block.blockNumber();
|
|
int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
|
|
int bottom = top + (int) blockBoundingRect(block).height();
|
|
|
|
while (block.isValid() && top <= event->rect().bottom()) {
|
|
if (block.isVisible() && bottom >= event->rect().top()) {
|
|
QString number = QString::number(blockNumber + 1);
|
|
painter.setPen(Theme::white);
|
|
painter.drawText(0, top, m_lineNumberArea->width(), fontMetrics().height(),
|
|
Qt::AlignRight, number);
|
|
}
|
|
|
|
block = block.next();
|
|
top = bottom;
|
|
bottom = top + (int) blockBoundingRect(block).height();
|
|
++blockNumber;
|
|
}
|
|
}
|