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