//// ScriptEditBox.cpp// interface/src/ui//// Created by Thijs Wenker on 4/30/14.// Copyright 2014 High Fidelity, Inc.//// Distributed under the Apache License, Version 2.0.// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// #include "ScriptEditBox.h"#include "ScriptLineNumberArea.h"#include "Application.h" ScriptEditBox::ScriptEditBox(QWidget* parent) : QPlainTextEdit(parent){ _scriptLineNumberArea = new ScriptLineNumberArea(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 ScriptEditBox::lineNumberAreaWidth() { int digits = 1; const int SPACER_PIXELS = 3; const int BASE_TEN = 10; int max = qMax(1, blockCount()); while (max >= BASE_TEN) { max /= BASE_TEN; ++digits; } return SPACER_PIXELS + fontMetrics().width(QLatin1Char('H')) * digits;} void ScriptEditBox::updateLineNumberAreaWidth(int) { setViewportMargins(lineNumberAreaWidth(), 0, 0, 0);} void ScriptEditBox::updateLineNumberArea(const QRect& rect, int dy) { if (dy) { _scriptLineNumberArea->scroll(0, dy); } else { _scriptLineNumberArea->update(0, rect.y(), _scriptLineNumberArea->width(), rect.height()); } if (rect.contains(viewport()->rect())) { updateLineNumberAreaWidth(0); }} void ScriptEditBox::resizeEvent(QResizeEvent* e) { QPlainTextEdit::resizeEvent(e); QRect cr = contentsRect(); _scriptLineNumberArea->setGeometry(QRect(cr.left(), cr.top(), lineNumberAreaWidth(), cr.height()));} void ScriptEditBox::highlightCurrentLine() { QList<QTextEdit::ExtraSelection> extraSelections; if (!isReadOnly()) { QTextEdit::ExtraSelection selection; QColor lineColor = QColor(Qt::gray).lighter(); selection.format.setBackground(lineColor); selection.format.setProperty(QTextFormat::FullWidthSelection, true); selection.cursor = textCursor(); selection.cursor.clearSelection(); extraSelections.append(selection); } setExtraSelections(extraSelections);} void ScriptEditBox::lineNumberAreaPaintEvent(QPaintEvent* event){ QPainter painter(_scriptLineNumberArea); painter.fillRect(event->rect(), Qt::lightGray); 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()) { QFont font = painter.font(); font.setBold(this->textCursor().blockNumber() == block.blockNumber()); painter.setFont(font); QString number = QString::number(blockNumber + 1); painter.setPen(Qt::black); painter.drawText(0, top, _scriptLineNumberArea->width(), fontMetrics().height(), Qt::AlignRight, number); } block = block.next(); top = bottom; bottom = top + (int) blockBoundingRect(block).height(); ++blockNumber; }}
//
// ScriptEditBox.cpp
// interface/src/ui
//
// Created by Thijs Wenker on 4/30/14.
// Copyright 2014 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
#include "ScriptEditBox.h"
#include "ScriptLineNumberArea.h"
#include "Application.h"
ScriptEditBox::ScriptEditBox(QWidget* parent) :
QPlainTextEdit(parent)
{
_scriptLineNumberArea = new ScriptLineNumberArea(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 ScriptEditBox::lineNumberAreaWidth() {
int digits = 1;
const int SPACER_PIXELS = 3;
const int BASE_TEN = 10;
int max = qMax(1, blockCount());
while (max >= BASE_TEN) {
max /= BASE_TEN;
++digits;
}
return SPACER_PIXELS + fontMetrics().width(QLatin1Char('H')) * digits;
}
void ScriptEditBox::updateLineNumberAreaWidth(int) {
setViewportMargins(lineNumberAreaWidth(), 0, 0, 0);
}
void ScriptEditBox::updateLineNumberArea(const QRect& rect, int dy) {
if (dy) {
_scriptLineNumberArea->scroll(0, dy);
} else {
_scriptLineNumberArea->update(0, rect.y(), _scriptLineNumberArea->width(), rect.height());
}
if (rect.contains(viewport()->rect())) {
updateLineNumberAreaWidth(0);
}
}
void ScriptEditBox::resizeEvent(QResizeEvent* e) {
QPlainTextEdit::resizeEvent(e);
QRect cr = contentsRect();
_scriptLineNumberArea->setGeometry(QRect(cr.left(), cr.top(), lineNumberAreaWidth(), cr.height()));
}
void ScriptEditBox::highlightCurrentLine() {
QList<QTextEdit::ExtraSelection> extraSelections;
if (!isReadOnly()) {
QTextEdit::ExtraSelection selection;
QColor lineColor = QColor(Qt::gray).lighter();
selection.format.setBackground(lineColor);
selection.format.setProperty(QTextFormat::FullWidthSelection, true);
selection.cursor = textCursor();
selection.cursor.clearSelection();
extraSelections.append(selection);
}
setExtraSelections(extraSelections);
}
void ScriptEditBox::lineNumberAreaPaintEvent(QPaintEvent* event)
{
QPainter painter(_scriptLineNumberArea);
painter.fillRect(event->rect(), Qt::lightGray);
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()) {
QFont font = painter.font();
font.setBold(this->textCursor().blockNumber() == block.blockNumber());
painter.setFont(font);
QString number = QString::number(blockNumber + 1);
painter.setPen(Qt::black);
painter.drawText(0, top, _scriptLineNumberArea->width(), fontMetrics().height(),
Qt::AlignRight, number);
}
block = block.next();
top = bottom;
bottom = top + (int) blockBoundingRect(block).height();
++blockNumber;
}
}