161 lines
3.3 KiB
C++
161 lines
3.3 KiB
C++
#include "OpenGLView.h"
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#include <QQuickWindow>
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#include <QHoverEvent>
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#include "MainModelerWindow.h"
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#include "OpenGLRenderer.h"
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#include "ModelerCameras.h"
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OpenGLView::OpenGLView(QQuickItem *parent) :
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QQuickItem(parent)
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{
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initialized = false;
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window = NULL;
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renderer = NULL;
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setAcceptedMouseButtons(Qt::AllButtons);
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setAcceptHoverEvents(true);
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mouse_button = Qt::NoButton;
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connect(this, SIGNAL(windowChanged(QQuickWindow*)), this, SLOT(handleWindowChanged(QQuickWindow*)));
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connect(this, SIGNAL(widthChanged()), this, SLOT(handleResize()));
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connect(this, SIGNAL(heightChanged()), this, SLOT(handleResize()));
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startTimer(50);
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}
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void OpenGLView::handleWindowChanged(QQuickWindow *win)
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{
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if (win)
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{
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window = qobject_cast<MainModelerWindow *>(win);
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if (window)
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{
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renderer = window->getRenderer();
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connect(win, SIGNAL(beforeRendering()), this, SLOT(paint()), Qt::DirectConnection);
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win->setClearBeforeRendering(false);
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initialized = false;
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}
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}
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}
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void OpenGLView::paint()
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{
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if (not initialized or not renderer)
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{
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renderer->initialize();
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initialized = true;
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resized = true;
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}
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if (resized)
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{
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renderer->resize(width(), height());
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resized = false;
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}
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renderer->prepareOpenGLState();
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renderer->paint();
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if (window)
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{
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window->resetOpenGLState();
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}
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}
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void OpenGLView::handleResize()
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{
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resized = true;
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}
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void OpenGLView::wheelEvent(QWheelEvent *event)
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{
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if (not acceptInputs())
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{
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return;
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}
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double factor = getSpeedFactor(event);
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window->getCamera()->processZoom(0.01 * factor * (double)event->angleDelta().y());
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}
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void OpenGLView::mousePressEvent(QMouseEvent *event)
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{
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if (not acceptInputs())
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{
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return;
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}
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mouse_button = event->button();
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mouse_pos = event->windowPos();
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}
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void OpenGLView::mouseReleaseEvent(QMouseEvent *)
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{
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if (not acceptInputs())
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{
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return;
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}
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mouse_button = Qt::NoButton;
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}
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void OpenGLView::mouseMoveEvent(QMouseEvent *event)
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{
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if (not acceptInputs())
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{
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return;
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}
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double factor = getSpeedFactor(event);
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QPointF diff = event->windowPos() - mouse_pos;
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if (mouse_button == Qt::LeftButton)
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{
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window->getCamera()->processPanning(0.002 * factor * diff.x(), 0.001 * factor * diff.y());
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}
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else if (mouse_button == Qt::RightButton)
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{
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window->getCamera()->processScroll(-0.02 * factor * diff.x(), 0.02 * factor * diff.y());
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}
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mouse_pos = event->windowPos();
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renderer->setMouseLocation(event->pos().x(), height() - event->pos().y());
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}
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void OpenGLView::hoverMoveEvent(QHoverEvent *event)
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{
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renderer->setMouseLocation(event->pos().x(), height() - event->pos().y());
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}
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void OpenGLView::timerEvent(QTimerEvent *)
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{
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if (window)
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{
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window->update();
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}
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}
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bool OpenGLView::acceptInputs() const
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{
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return window->getState() != "Render Dialog";
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}
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double OpenGLView::getSpeedFactor(QInputEvent *event)
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{
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if (event->modifiers() & Qt::ControlModifier)
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{
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return 0.2;
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}
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else if (event->modifiers() & Qt::ShiftModifier)
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{
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return 3.0;
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}
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else
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{
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return 1.0;
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}
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}
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