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$ run-clang-tidy.py -header-filter='.*' -checks='modernize-use-using' -fix add .clang-tidy file
217 lines
7.3 KiB
C++
217 lines
7.3 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is adapted from Qt Creator (replacing theme stuff by QColor)
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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****************************************************************************/
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#include "icon.h"
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#include <QApplication>
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#include <QIcon>
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#include <QImage>
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#include <QMetaEnum>
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#include <QPainter>
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#include <QPaintEngine>
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#include <QWidget>
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namespace moveit_rviz_plugin {
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namespace utils {
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static const qreal PunchEdgeWidth = 0.5;
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static const qreal PunchEdgeIntensity = 0.6;
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static QPixmap maskToColorAndAlpha(const QPixmap& mask, const QColor& color) {
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QImage result(mask.toImage().convertToFormat(QImage::Format_ARGB32));
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result.setDevicePixelRatio(mask.devicePixelRatio());
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QRgb* bitsStart = reinterpret_cast<QRgb*>(result.bits());
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const QRgb* bitsEnd = bitsStart + result.width() * result.height();
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const QRgb tint = color.rgb() & 0x00ffffff;
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const QRgb alpha = QRgb(color.alpha());
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for (QRgb* pixel = bitsStart; pixel < bitsEnd; ++pixel) {
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QRgb pixelAlpha = (((~*pixel) & 0xff) * alpha) >> 8;
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*pixel = (pixelAlpha << 24) | tint;
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}
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return QPixmap::fromImage(result);
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}
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typedef QPair<QPixmap, QColor> MaskAndColor;
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using MasksAndColors = QList<MaskAndColor>;
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static MasksAndColors masksAndColors(const Icon& icon, int dpr) {
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MasksAndColors result;
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for (const IconMaskAndColor& i : icon) {
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const QString& fileName = i.first;
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const QColor color = i.second;
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result.append(qMakePair(QPixmap(fileName), color));
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}
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return result;
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}
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static void smearPixmap(QPainter* painter, const QPixmap& pixmap, qreal radius) {
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const qreal nagative = -radius - 0.01; // Workaround for QPainter rounding behavior
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const qreal positive = radius;
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painter->drawPixmap(QPointF(nagative, nagative), pixmap);
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painter->drawPixmap(QPointF(0, nagative), pixmap);
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painter->drawPixmap(QPointF(positive, nagative), pixmap);
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painter->drawPixmap(QPointF(positive, 0), pixmap);
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painter->drawPixmap(QPointF(positive, positive), pixmap);
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painter->drawPixmap(QPointF(0, positive), pixmap);
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painter->drawPixmap(QPointF(nagative, positive), pixmap);
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painter->drawPixmap(QPointF(nagative, 0), pixmap);
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}
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static QPixmap combinedMask(const MasksAndColors& masks, Icon::IconStyleOptions style) {
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if (masks.count() == 1)
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return masks.first().first;
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QPixmap result(masks.first().first);
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QPainter p(&result);
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p.setCompositionMode(QPainter::CompositionMode_Darken);
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auto maskImage = masks.constBegin();
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maskImage++;
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for (; maskImage != masks.constEnd(); ++maskImage) {
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if (style & Icon::PunchEdges) {
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p.save();
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p.setOpacity(PunchEdgeIntensity);
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p.setCompositionMode(QPainter::CompositionMode_Lighten);
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smearPixmap(&p, maskToColorAndAlpha((*maskImage).first, Qt::white), PunchEdgeWidth);
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p.restore();
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}
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p.drawPixmap(0, 0, (*maskImage).first);
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}
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p.end();
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return result;
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}
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static QPixmap masksToIcon(const MasksAndColors& masks, const QPixmap& combinedMask, Icon::IconStyleOptions style) {
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QPixmap result(combinedMask.size());
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result.setDevicePixelRatio(combinedMask.devicePixelRatio());
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result.fill(Qt::transparent);
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QPainter p(&result);
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for (MasksAndColors::const_iterator maskImage = masks.constBegin(); maskImage != masks.constEnd(); ++maskImage) {
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if (style & Icon::PunchEdges && maskImage != masks.constBegin()) {
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// Punch a transparent outline around an overlay.
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p.save();
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p.setOpacity(PunchEdgeIntensity);
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p.setCompositionMode(QPainter::CompositionMode_DestinationOut);
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smearPixmap(&p, maskToColorAndAlpha((*maskImage).first, Qt::white), PunchEdgeWidth);
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p.restore();
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}
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p.drawPixmap(0, 0, maskToColorAndAlpha((*maskImage).first, (*maskImage).second));
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}
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if (style & Icon::DropShadow) {
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const QPixmap shadowMask = maskToColorAndAlpha(combinedMask, Qt::black);
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p.setCompositionMode(QPainter::CompositionMode_DestinationOver);
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p.setOpacity(0.05);
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p.drawPixmap(QPointF(0, -0.501), shadowMask);
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p.drawPixmap(QPointF(-0.501, 0), shadowMask);
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p.drawPixmap(QPointF(0.5, 0), shadowMask);
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p.drawPixmap(QPointF(0.5, 0.5), shadowMask);
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p.drawPixmap(QPointF(-0.501, 0.5), shadowMask);
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p.setOpacity(0.2);
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p.drawPixmap(0, 1, shadowMask);
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}
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p.end();
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return result;
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}
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static QPixmap combinedPlainPixmaps(const QVector<IconMaskAndColor>& images) {
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QPixmap result(images.first().first);
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auto pixmap = images.constBegin();
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pixmap++;
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for (; pixmap != images.constEnd(); ++pixmap) {
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const QPixmap overlay((*pixmap).first);
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result.paintEngine()->painter()->drawPixmap(0, 0, overlay);
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}
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return result;
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}
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Icon::Icon() {}
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Icon::Icon(std::initializer_list<IconMaskAndColor> args, Icon::IconStyleOptions style)
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: QVector<IconMaskAndColor>(args), m_style(style) {}
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Icon::Icon(const QString& imageFileName) : m_style(None) {
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append({ imageFileName, QColor() });
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}
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QIcon Icon::icon() const {
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if (isEmpty()) {
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return QIcon();
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} else if (m_style == None) {
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return QIcon(combinedPlainPixmaps(*this));
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} else {
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QIcon result;
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const int maxDpr = qRound(qApp->devicePixelRatio());
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for (int dpr = 1; dpr <= maxDpr; dpr++) {
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const MasksAndColors masks = masksAndColors(*this, dpr);
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const QPixmap combined_mask = combinedMask(masks, m_style);
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result.addPixmap(masksToIcon(masks, combined_mask, m_style));
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const QColor disabledColor = QColor::fromRgba(0x60a4a6a8);
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result.addPixmap(maskToColorAndAlpha(combined_mask, disabledColor), QIcon::Disabled);
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}
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return result;
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}
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}
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QPixmap Icon::pixmap() const {
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if (isEmpty()) {
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return QPixmap();
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} else if (m_style == None) {
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return combinedPlainPixmaps(*this);
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} else {
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const MasksAndColors masks = masksAndColors(*this, qRound(qApp->devicePixelRatio()));
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const QPixmap combined_mask = combinedMask(masks, m_style);
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return masksToIcon(masks, combined_mask, m_style);
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}
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}
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QString Icon::imageFileName() const {
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return first().first;
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}
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QIcon Icon::sideBarIcon(const Icon& classic, const Icon& flat) {
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return flat.icon();
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}
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QIcon Icon::modeIcon(const Icon& classic, const Icon& flat, const Icon& flatActive) {
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QIcon result = sideBarIcon(classic, flat);
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result.addPixmap(flatActive.pixmap(), QIcon::Active);
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return result;
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}
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QIcon Icon::combinedIcon(const QList<QIcon>& icons) {
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QIcon result;
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QWindow* window = QApplication::allWidgets().first()->windowHandle();
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for (const QIcon& icon : icons)
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for (const QIcon::Mode mode : { QIcon::Disabled, QIcon::Normal })
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for (const QSize& size : icon.availableSizes(mode))
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result.addPixmap(icon.pixmap(window, size, mode), mode);
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return result;
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}
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}
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}
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