diff options
Diffstat (limited to 'examples/widgets/widgets/tablet/tabletcanvas.cpp')
| -rw-r--r-- | examples/widgets/widgets/tablet/tabletcanvas.cpp | 175 |
1 files changed, 64 insertions, 111 deletions
diff --git a/examples/widgets/widgets/tablet/tabletcanvas.cpp b/examples/widgets/widgets/tablet/tabletcanvas.cpp index 59ca608cef..f28f765e36 100644 --- a/examples/widgets/widgets/tablet/tabletcanvas.cpp +++ b/examples/widgets/widgets/tablet/tabletcanvas.cpp @@ -1,52 +1,5 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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. -** -** BSD License Usage -** Alternatively, 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause #include "tabletcanvas.h" @@ -99,21 +52,21 @@ void TabletCanvas::tabletEvent(QTabletEvent *event) case QEvent::TabletPress: if (!m_deviceDown) { m_deviceDown = true; - lastPoint.pos = event->posF(); + lastPoint.pos = event->position(); lastPoint.pressure = event->pressure(); lastPoint.rotation = event->rotation(); } break; case QEvent::TabletMove: #ifndef Q_OS_IOS - if (event->device() == QTabletEvent::RotationStylus) + if (event->pointingDevice() && event->pointingDevice()->capabilities().testFlag(QPointingDevice::Capability::Rotation)) updateCursor(event); #endif if (m_deviceDown) { updateBrush(event); QPainter painter(&m_pixmap); paintPixmap(painter, event); - lastPoint.pos = event->posF(); + lastPoint.pos = event->position(); lastPoint.pressure = event->pressure(); lastPoint.rotation = event->rotation(); } @@ -133,7 +86,7 @@ void TabletCanvas::tabletEvent(QTabletEvent *event) //! [4] void TabletCanvas::initPixmap() { - qreal dpr = devicePixelRatioF(); + qreal dpr = devicePixelRatio(); QPixmap newPixmap = QPixmap(qRound(width() * dpr), qRound(height() * dpr)); newPixmap.setDevicePixelRatio(dpr); newPixmap.fill(Qt::white); @@ -149,8 +102,8 @@ void TabletCanvas::paintEvent(QPaintEvent *event) if (m_pixmap.isNull()) initPixmap(); QPainter painter(this); - QRect pixmapPortion = QRect(event->rect().topLeft() * devicePixelRatioF(), - event->rect().size() * devicePixelRatioF()); + QRect pixmapPortion = QRect(event->rect().topLeft() * devicePixelRatio(), + event->rect().size() * devicePixelRatio()); painter.drawPixmap(event->rect().topLeft(), m_pixmap, pixmapPortion); } //! [4] @@ -161,9 +114,9 @@ void TabletCanvas::paintPixmap(QPainter &painter, QTabletEvent *event) static qreal maxPenRadius = pressureToWidth(1.0); painter.setRenderHint(QPainter::Antialiasing); - switch (event->device()) { + switch (event->deviceType()) { //! [6] - case QTabletEvent::Airbrush: + case QInputDevice::DeviceType::Airbrush: { painter.setPen(Qt::NoPen); QRadialGradient grad(lastPoint.pos, m_pen.widthF() * 10.0); @@ -173,33 +126,13 @@ void TabletCanvas::paintPixmap(QPainter &painter, QTabletEvent *event) grad.setColorAt(0.5, Qt::transparent); painter.setBrush(grad); qreal radius = grad.radius(); - painter.drawEllipse(event->posF(), radius, radius); - update(QRect(event->pos() - QPoint(radius, radius), QSize(radius * 2, radius * 2))); - } - break; - case QTabletEvent::RotationStylus: - { - m_brush.setStyle(Qt::SolidPattern); - painter.setPen(Qt::NoPen); - painter.setBrush(m_brush); - QPolygonF poly; - qreal halfWidth = pressureToWidth(lastPoint.pressure); - QPointF brushAdjust(qSin(qDegreesToRadians(-lastPoint.rotation)) * halfWidth, - qCos(qDegreesToRadians(-lastPoint.rotation)) * halfWidth); - poly << lastPoint.pos + brushAdjust; - poly << lastPoint.pos - brushAdjust; - halfWidth = m_pen.widthF(); - brushAdjust = QPointF(qSin(qDegreesToRadians(-event->rotation())) * halfWidth, - qCos(qDegreesToRadians(-event->rotation())) * halfWidth); - poly << event->posF() - brushAdjust; - poly << event->posF() + brushAdjust; - painter.drawConvexPolygon(poly); - update(poly.boundingRect().toRect()); + painter.drawEllipse(event->position(), radius, radius); + update(QRect(event->position().toPoint() - QPoint(radius, radius), QSize(radius * 2, radius * 2))); } break; //! [6] - case QTabletEvent::Puck: - case QTabletEvent::FourDMouse: + case QInputDevice::DeviceType::Puck: + case QInputDevice::DeviceType::Mouse: { const QString error(tr("This input device is not supported by the example.")); #if QT_CONFIG(statustip) @@ -221,11 +154,30 @@ void TabletCanvas::paintPixmap(QPainter &painter, QTabletEvent *event) #endif } Q_FALLTHROUGH(); - case QTabletEvent::Stylus: - painter.setPen(m_pen); - painter.drawLine(lastPoint.pos, event->posF()); - update(QRect(lastPoint.pos.toPoint(), event->pos()).normalized() - .adjusted(-maxPenRadius, -maxPenRadius, maxPenRadius, maxPenRadius)); + case QInputDevice::DeviceType::Stylus: + if (event->pointingDevice()->capabilities().testFlag(QPointingDevice::Capability::Rotation)) { + m_brush.setStyle(Qt::SolidPattern); + painter.setPen(Qt::NoPen); + painter.setBrush(m_brush); + QPolygonF poly; + qreal halfWidth = pressureToWidth(lastPoint.pressure); + QPointF brushAdjust(qSin(qDegreesToRadians(-lastPoint.rotation)) * halfWidth, + qCos(qDegreesToRadians(-lastPoint.rotation)) * halfWidth); + poly << lastPoint.pos + brushAdjust; + poly << lastPoint.pos - brushAdjust; + halfWidth = m_pen.widthF(); + brushAdjust = QPointF(qSin(qDegreesToRadians(-event->rotation())) * halfWidth, + qCos(qDegreesToRadians(-event->rotation())) * halfWidth); + poly << event->position() - brushAdjust; + poly << event->position() + brushAdjust; + painter.drawConvexPolygon(poly); + update(poly.boundingRect().toRect()); + } else { + painter.setPen(m_pen); + painter.drawLine(lastPoint.pos, event->position()); + update(QRect(lastPoint.pos.toPoint(), event->position().toPoint()).normalized() + .adjusted(-maxPenRadius, -maxPenRadius, maxPenRadius, maxPenRadius)); + } break; } } @@ -251,7 +203,7 @@ void TabletCanvas::updateBrush(const QTabletEvent *event) m_color.setAlphaF(event->pressure()); break; case TangentialPressureValuator: - if (event->device() == QTabletEvent::Airbrush) + if (event->deviceType() == QInputDevice::DeviceType::Airbrush) m_color.setAlphaF(qMax(0.01, (event->tangentialPressure() + 1.0) / 2.0)); else m_color.setAlpha(255); @@ -293,7 +245,7 @@ void TabletCanvas::updateBrush(const QTabletEvent *event) } //! [10] //! [11] - if (event->pointerType() == QTabletEvent::Eraser) { + if (event->pointerType() == QPointingDevice::PointerType::Eraser) { m_brush.setColor(Qt::white); m_pen.setColor(Qt::white); m_pen.setWidthF(event->pressure() * 10 + 1); @@ -309,34 +261,35 @@ void TabletCanvas::updateCursor(const QTabletEvent *event) { QCursor cursor; if (event->type() != QEvent::TabletLeaveProximity) { - if (event->pointerType() == QTabletEvent::Eraser) { + if (event->pointerType() == QPointingDevice::PointerType::Eraser) { cursor = QCursor(QPixmap(":/images/cursor-eraser.png"), 3, 28); } else { - switch (event->device()) { - case QTabletEvent::Stylus: - cursor = QCursor(QPixmap(":/images/cursor-pencil.png"), 0, 0); + switch (event->deviceType()) { + case QInputDevice::DeviceType::Stylus: + if (event->pointingDevice()->capabilities().testFlag(QPointingDevice::Capability::Rotation)) { + QImage origImg(QLatin1String(":/images/cursor-felt-marker.png")); + QImage img(32, 32, QImage::Format_ARGB32); + QColor solid = m_color; + solid.setAlpha(255); + img.fill(solid); + QPainter painter(&img); + QTransform transform = painter.transform(); + transform.translate(16, 16); + transform.rotate(event->rotation()); + painter.setTransform(transform); + painter.setCompositionMode(QPainter::CompositionMode_DestinationIn); + painter.drawImage(-24, -24, origImg); + painter.setCompositionMode(QPainter::CompositionMode_HardLight); + painter.drawImage(-24, -24, origImg); + painter.end(); + cursor = QCursor(QPixmap::fromImage(img), 16, 16); + } else { + cursor = QCursor(QPixmap(":/images/cursor-pencil.png"), 0, 0); + } break; - case QTabletEvent::Airbrush: + case QInputDevice::DeviceType::Airbrush: cursor = QCursor(QPixmap(":/images/cursor-airbrush.png"), 3, 4); break; - case QTabletEvent::RotationStylus: { - QImage origImg(QLatin1String(":/images/cursor-felt-marker.png")); - QImage img(32, 32, QImage::Format_ARGB32); - QColor solid = m_color; - solid.setAlpha(255); - img.fill(solid); - QPainter painter(&img); - QTransform transform = painter.transform(); - transform.translate(16, 16); - transform.rotate(event->rotation()); - painter.setTransform(transform); - painter.setCompositionMode(QPainter::CompositionMode_DestinationIn); - painter.drawImage(-24, -24, origImg); - painter.setCompositionMode(QPainter::CompositionMode_HardLight); - painter.drawImage(-24, -24, origImg); - painter.end(); - cursor = QCursor(QPixmap::fromImage(img), 16, 16); - } break; default: break; } |