Mercurial > hg > orthanc-stone
view Applications/Qt/QCairoWidget.cpp @ 628:84af39146e76 am-dev
CodeGeneration: support default values
author | Alain Mazy <alain@mazy.be> |
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date | Wed, 08 May 2019 16:32:57 +0200 |
parents | e77cbe4bb4c8 |
children | fe938bddb932 |
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/** * Stone of Orthanc * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2019 Osimis S.A., Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License * as published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. **/ #include "QCairoWidget.h" #include <QPainter> #include <QPaintEvent> #include <stdexcept> QCairoWidget::StoneObserver::StoneObserver(QCairoWidget& that, OrthancStone::IViewport& viewport, OrthancStone::MessageBroker& broker) : OrthancStone::IObserver(broker), that_(that) { // get notified each time the content of the central viewport changes viewport.RegisterObserverCallback( new OrthancStone::Callable<StoneObserver, OrthancStone::IViewport::ViewportChangedMessage> (*this, &StoneObserver::OnViewportChanged)); } QCairoWidget::QCairoWidget(QWidget *parent) : QWidget(parent), context_(NULL) { setFocusPolicy(Qt::StrongFocus); // catch keyPressEvents } void QCairoWidget::SetContext(OrthancStone::NativeStoneApplicationContext& context) { context_ = &context; { OrthancStone::NativeStoneApplicationContext::GlobalMutexLocker locker(*context_); observer_.reset(new StoneObserver(*this, locker.GetCentralViewport(), locker.GetMessageBroker())); } } void QCairoWidget::paintEvent(QPaintEvent* /*event*/) { QPainter painter(this); if (image_.get() != NULL && context_ != NULL) { OrthancStone::NativeStoneApplicationContext::GlobalMutexLocker locker(*context_); OrthancStone::IViewport& viewport = locker.GetCentralViewport(); Orthanc::ImageAccessor a; surface_.GetWriteableAccessor(a); viewport.Render(a); painter.drawImage(0, 0, *image_); } else { painter.fillRect(rect(), Qt::red); } } OrthancStone::KeyboardModifiers GetKeyboardModifiers(QInputEvent* event) { Qt::KeyboardModifiers qtModifiers = event->modifiers(); int stoneModifiers = static_cast<int>(OrthancStone::KeyboardModifiers_None); if ((qtModifiers & Qt::AltModifier) != 0) { stoneModifiers |= static_cast<int>(OrthancStone::KeyboardModifiers_Alt); } if ((qtModifiers & Qt::ControlModifier) != 0) { stoneModifiers |= static_cast<int>(OrthancStone::KeyboardModifiers_Control); } if ((qtModifiers & Qt::ShiftModifier) != 0) { stoneModifiers |= static_cast<int>(OrthancStone::KeyboardModifiers_Shift); } return static_cast<OrthancStone::KeyboardModifiers>(stoneModifiers); } void QCairoWidget::mousePressEvent(QMouseEvent* event) { OrthancStone::KeyboardModifiers stoneModifiers = GetKeyboardModifiers(event); OrthancStone::MouseButton button; switch (event->button()) { case Qt::LeftButton: button = OrthancStone::MouseButton_Left; break; case Qt::RightButton: button = OrthancStone::MouseButton_Right; break; case Qt::MiddleButton: button = OrthancStone::MouseButton_Middle; break; default: return; // Unsupported button } { OrthancStone::NativeStoneApplicationContext::GlobalMutexLocker locker(*context_); locker.GetCentralViewport().MouseDown(button, event->pos().x(), event->pos().y(), stoneModifiers, std::vector<OrthancStone::Touch>()); } } void QCairoWidget::mouseReleaseEvent(QMouseEvent* /*eventNotUsed*/) { OrthancStone::NativeStoneApplicationContext::GlobalMutexLocker locker(*context_); locker.GetCentralViewport().MouseLeave(); } void QCairoWidget::mouseMoveEvent(QMouseEvent* event) { OrthancStone::NativeStoneApplicationContext::GlobalMutexLocker locker(*context_); locker.GetCentralViewport().MouseMove(event->pos().x(), event->pos().y(), std::vector<OrthancStone::Touch>()); } void QCairoWidget::wheelEvent(QWheelEvent * event) { OrthancStone::NativeStoneApplicationContext::GlobalMutexLocker locker(*context_); OrthancStone::KeyboardModifiers stoneModifiers = GetKeyboardModifiers(event); if (event->orientation() == Qt::Vertical) { if (event->delta() < 0) // TODO: compare direction with SDL and make sure we send the same directions { locker.GetCentralViewport().MouseWheel(OrthancStone::MouseWheelDirection_Up, event->pos().x(), event->pos().y(), stoneModifiers); } else { locker.GetCentralViewport().MouseWheel(OrthancStone::MouseWheelDirection_Down, event->pos().x(), event->pos().y(), stoneModifiers); } } } void QCairoWidget::keyPressEvent(QKeyEvent *event) { using namespace OrthancStone; OrthancStone::KeyboardModifiers stoneModifiers = GetKeyboardModifiers(event); OrthancStone::KeyboardKeys keyType = OrthancStone::KeyboardKeys_Generic; char keyChar = event->text()[0].toLatin1(); #define CASE_QT_KEY_TO_ORTHANC(qt, o) case qt: keyType = o; break; if (keyChar == 0) { switch (event->key()) { CASE_QT_KEY_TO_ORTHANC(Qt::Key_Up, KeyboardKeys_Up); CASE_QT_KEY_TO_ORTHANC(Qt::Key_Down, KeyboardKeys_Down); CASE_QT_KEY_TO_ORTHANC(Qt::Key_Left, KeyboardKeys_Left); CASE_QT_KEY_TO_ORTHANC(Qt::Key_Right, KeyboardKeys_Right); default: break; } } { OrthancStone::NativeStoneApplicationContext::GlobalMutexLocker locker(*context_); locker.GetCentralViewport().KeyPressed(keyType, keyChar, stoneModifiers); } } void QCairoWidget::resizeEvent(QResizeEvent* event) { grabGesture(Qt::PanGesture); QWidget::resizeEvent(event); if (event) { surface_.SetSize(event->size().width(), event->size().height(), true); image_.reset(new QImage(reinterpret_cast<uchar*>(surface_.GetBuffer()), event->size().width(), event->size().height(), surface_.GetPitch(), QImage::Format_RGB32)); { OrthancStone::NativeStoneApplicationContext::GlobalMutexLocker locker(*context_); locker.GetCentralViewport().SetSize(event->size().width(), event->size().height()); } } }