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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qsgsoftwareglyphnode_p.h"
#include <QtGui/private/qrawfont_p.h>
QT_BEGIN_NAMESPACE
QSGSoftwareGlyphNode::QSGSoftwareGlyphNode()
: m_geometry(QSGGeometry::defaultAttributes_TexturedPoint2D(), 0)
, m_style(QQuickText::Normal)
{
setMaterial((QSGMaterial*)1);
setGeometry(&m_geometry);
}
namespace {
QRectF calculateBoundingRect(const QPointF &position, const QGlyphRun &glyphs)
{
QFixed minX;
QFixed minY;
QFixed maxX;
QFixed maxY;
QRawFontPrivate *rawFontD = QRawFontPrivate::get(glyphs.rawFont());
QFontEngine *fontEngine = rawFontD->fontEngine;
QFontEngine::GlyphFormat glyphFormat = fontEngine->glyphFormat != QFontEngine::Format_None ? fontEngine->glyphFormat : QFontEngine::Format_A32;
int margin = fontEngine->glyphMargin(glyphFormat);
const QVector<uint> glyphIndexes = glyphs.glyphIndexes();
const QVector<QPointF> glyphPositions = glyphs.positions();
for (int i = 0, n = qMin(glyphIndexes.size(), glyphPositions.size()); i < n; ++i) {
glyph_metrics_t gm = fontEngine->alphaMapBoundingBox(glyphIndexes.at(i), QFixedPoint(), QTransform(), glyphFormat);
gm.x += QFixed::fromReal(glyphPositions.at(i).x()) - margin;
gm.y += QFixed::fromReal(glyphPositions.at(i).y()) - margin;
if (i == 0) {
minX = gm.x;
minY = gm.y;
maxX = gm.x + gm.width;
maxY = gm.y + gm.height;
} else {
minX = qMin(gm.x, minX);
minY = qMin(gm.y, minY);
maxX = qMax(gm.x + gm.width, maxX);
maxY = qMax(gm.y + gm.height, maxY);
}
}
QRectF boundingRect(QPointF(minX.toReal(), minY.toReal()), QPointF(maxX.toReal(), maxY.toReal()));
return boundingRect.translated(position - QPointF(0.0, glyphs.rawFont().ascent()));
}
}
void QSGSoftwareGlyphNode::setGlyphs(const QPointF &position, const QGlyphRun &glyphs)
{
m_position = position;
m_glyphRun = glyphs;
// Decorations handled by text node
m_glyphRun.setOverline(false);
m_glyphRun.setStrikeOut(false);
m_glyphRun.setUnderline(false);
recalculateBoundingRect();
}
void QSGSoftwareGlyphNode::recalculateBoundingRect()
{
int x1Offset = m_style == QQuickText::Outline ? -1 : 0;
int x2Offset = m_style == QQuickText::Outline ? 1 : 0;
int y1Offset = m_style == QQuickText::Outline || m_style == QQuickText::Sunken ? -1 : 0;
int y2Offset = m_style == QQuickText::Outline || m_style == QQuickText::Raised ? 1 : 0;
m_bounding_rect = calculateBoundingRect(m_position, m_glyphRun).adjusted(x1Offset, y1Offset, x2Offset, y2Offset);
}
void QSGSoftwareGlyphNode::setColor(const QColor &color)
{
m_color = color;
}
void QSGSoftwareGlyphNode::setStyle(QQuickText::TextStyle style)
{
m_style = style;
recalculateBoundingRect();
}
void QSGSoftwareGlyphNode::setStyleColor(const QColor &color)
{
m_styleColor = color;
}
QPointF QSGSoftwareGlyphNode::baseLine() const
{
return QPointF();
}
void QSGSoftwareGlyphNode::setPreferredAntialiasingMode(QSGGlyphNode::AntialiasingMode)
{
}
void QSGSoftwareGlyphNode::update()
{
}
void QSGSoftwareGlyphNode::paint(QPainter *painter)
{
painter->setBrush(QBrush());
QPointF pos = m_position - QPointF(0, m_glyphRun.rawFont().ascent());
qreal offset = 1.0;
if (painter->device()->devicePixelRatio() > 0.0)
offset = 1.0 / painter->device()->devicePixelRatio();
switch (m_style) {
case QQuickText::Normal: break;
case QQuickText::Outline:
painter->setPen(m_styleColor);
painter->drawGlyphRun(pos + QPointF(0, offset), m_glyphRun);
painter->drawGlyphRun(pos + QPointF(0, -offset), m_glyphRun);
painter->drawGlyphRun(pos + QPointF(offset, 0), m_glyphRun);
painter->drawGlyphRun(pos + QPointF(-offset, 0), m_glyphRun);
break;
case QQuickText::Raised:
painter->setPen(m_styleColor);
painter->drawGlyphRun(pos + QPointF(0, offset), m_glyphRun);
break;
case QQuickText::Sunken:
painter->setPen(m_styleColor);
painter->drawGlyphRun(pos + QPointF(0, -offset), m_glyphRun);
break;
}
painter->setPen(m_color);
painter->drawGlyphRun(pos, m_glyphRun);
}
QT_END_NAMESPACE
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