LP-29 simplify resize logic (also fixes some resizing issues)

ground/gcs/src/libs/osgearth/osgQtQuick/OSGCamera.cpp

@@ -76,12 +76,7 @@ public:
         first    = true;
 
         dirty    = false;
-
+        fovDirty = false;
-        sizeDirty = false;
-        x = 0;
-        y = 0;
-        width     = 0;
-        height    = 0;
     }
 
     ~Hidden()
@@ -196,8 +191,9 @@ public:
         }
 
         dirty    = true;
-        sizeDirty = true;
+        fovDirty = true;
         updateCamera();
+        updateAspectRatio();
     }
 
     void detachCamera(osg::Camera *camera)
@@ -220,9 +216,6 @@ public:
             delete logDepthBuffer;
             logDepthBuffer = NULL;
         }
-
-        // reset viewport
-        x = y = width = height = 0;
     }
 
     void attachManipulator(osgViewer::View *view)
@@ -311,31 +304,19 @@ public:
 
     void updateCamera()
     {
-        if (first) {
-            first = false;
         updateCameraFOV();
-        }
-        updateCameraSize();
         if (manipulatorMode == User) {
             updateCameraPosition();
         }
     }
 
-    void updateCameraSize()
-    {
-        if (!sizeDirty || !camera.valid()) {
-            return;
-        }
-        sizeDirty = false;
-
-        // qDebug() << "OSGCamera::updateCamera size" << x << y << width << height << fieldOfView;
-        camera->getGraphicsContext()->resized(x, y, width, height);
-        camera->setViewport(x, y, width, height);
-        updateAspectRatio();
-    }
-
     void updateCameraFOV()
     {
+        if (!fovDirty || !camera.valid()) {
+            return;
+        }
+        fovDirty = false;
+
         // qDebug() << "OSGCamera::updateCameraFOV";
         double fovy, ar, zn, zf;
 
@@ -351,7 +332,8 @@ public:
 
         camera->getProjectionMatrixAsPerspective(fovy, ar, zn, zf);
 
-        ar = static_cast<double>(width) / static_cast<double>(height);
+        osg::Viewport *viewport = camera->getViewport();
+        ar = static_cast<double>(viewport->width()) / static_cast<double>(viewport->height());
         camera->setProjectionMatrixAsPerspective(fovy, ar, zn, zf);
     }
 
@@ -404,6 +386,7 @@ public:
     }
 
     qreal   fieldOfView;
+    bool    fovDirty;
 
     OSGNode *sceneData;
 
@@ -430,12 +413,6 @@ public:
     QVector3D attitude;
     QVector3D position;
 
-    bool sizeDirty;
-    int  x;
-    int  y;
-    int  width;
-    int  height;
-
     osg::ref_ptr<osg::Camera> camera;
     osg::ref_ptr<CameraUpdateCallback> cameraUpdateCallback;
 
@@ -478,23 +455,13 @@ qreal OSGCamera::fieldOfView() const
     return h->fieldOfView;
 }
 
-// ! Camera vertical field of view in degrees
+// Camera vertical field of view in degrees
 void OSGCamera::setFieldOfView(qreal arg)
 {
     if (h->fieldOfView != arg) {
         h->fieldOfView = arg;
-        h->sizeDirty   = true;
+        h->fovDirty    = true;
         emit fieldOfViewChanged(fieldOfView());
-
-        // it should be a queued call to OSGCameraRenderer instead
-        /*if (h->viewer.get()) {
-            h->viewer->getCamera()->setProjectionMatrixAsPerspective(
-                        h->fieldOfView,
-                        qreal(h->currentSize.width())/h->currentSize.height(),
-                        1.0f, 10000.0f);
-           }*/
-
-        // updateFrame();
     }
 }
 
@@ -619,23 +586,6 @@ void OSGCamera::setLogarithmicDepthBuffer(bool enabled)
     }
 }
 
-void OSGCamera::setViewport(int x, int y, int width, int height)
-{
-    // qDebug() << "OSGCamera::setViewport" << x << y << width << "x" << heigth;
-    if (width <= 0 || height <= 0) {
-        qWarning() << "OSGCamera::setViewport - invalid size" << width << "x" << height;
-        return;
-    }
-    if (h->x != x || h->y != y || h->width != width || h->height != height) {
-        qWarning() << "OSGCamera::setViewport" << width << "x" << height;
-        h->x         = x;
-        h->y         = y;
-        h->width     = width;
-        h->height    = height;
-        h->sizeDirty = true;
-    }
-}
-
 bool OSGCamera::attach(osgViewer::View *view)
 {
     return h->attach(view);

ground/gcs/src/libs/osgearth/osgQtQuick/OSGCamera.hpp

@@ -117,8 +117,6 @@ public:
     bool logarithmicDepthBuffer();
     void setLogarithmicDepthBuffer(bool enabled);
 
-    void setViewport(int x, int y, int width, int height);
-
     virtual bool attach(osgViewer::View *view);
     virtual bool detach(osgViewer::View *view);
 

ground/gcs/src/libs/osgearth/osgQtQuick/OSGViewport.cpp

@@ -173,7 +173,6 @@ public:
             return false;
         }
         if (camera) {
-            camera->setViewport(0, 0, self->width(), self->height());
             camera->attach(view);
         } else {
             qWarning() << "OSGViewport::attach - no camera!";
@@ -384,7 +383,10 @@ public:
         // add the screen capture handler
         // view->addEventHandler(new osgViewer::ScreenCaptureHandler);
 
-        view->getCamera()->setGraphicsContext(createGraphicsContext());
+        osg::GraphicsContext *gc = createGraphicsContext();
+        osg::Camera *camera = view->getCamera();
+        camera->setGraphicsContext(gc);
+        camera->setViewport(new osg::Viewport(0, 0, gc->getTraits()->width, gc->getTraits()->height));
 
         return view;
     }
@@ -548,8 +550,9 @@ public:
     QOpenGLFramebufferObject *createFramebufferObject(const QSize &size)
     {
         qDebug() << "ViewportRenderer::createFramebufferObject" << size;
-        if (h->camera) {
+        if (h->view.valid()) {
-            h->camera->setViewport(0, 0, size.width(), size.height());
+            h->view->getCamera()->getGraphicsContext()->resized(0, 0, size.width(), size.height());
+            h->view->getEventQueue()->windowResize(0, 0, size.width(), size.height());
         }
 
         QOpenGLFramebufferObjectFormat format;
@@ -583,7 +586,6 @@ QtKeyboardMap OSGViewport::Hidden::keyMap = QtKeyboardMap();
 
 /* class OSGViewport */
 
-
 OSGViewport::OSGViewport(QQuickItem *parent) : QQuickFramebufferObject(parent), h(new Hidden(this))
 {
     qDebug() << "OSGViewport::OSGViewport";
@@ -719,10 +721,10 @@ QSGNode *OSGViewport::updatePaintNode(QSGNode *node, QQuickItem::UpdatePaintNode
 
 QPointF OSGViewport::mousePoint(QMouseEvent *event)
 {
-    // qreal x = 0.01 * (event->x() - self->width() / 2);
+    // qreal x = 2.0 * (event->x() - width() / 2) / width();
-    // qreal y = 0.01 * (event->y() - self->height() / 2);
+    // qreal y = 2.0 * (event->y() - height() / 2) / height();
-    qreal x = 2.0 * (event->x() - width() / 2) / width();
+    qreal x = event->x();
-    qreal y = 2.0 * (event->y() - height() / 2) / height();
+    qreal y = event->y();
 
     return QPointF(x, y);
 }

ground/gcs/src/libs/osgearth/qtwindowingsystem.cpp

@@ -104,20 +104,7 @@ GraphicsWindowQt::GraphicsWindowQt(osg::GraphicsContext::Traits *traits) :
 {
     qDebug() << "GraphicsWindowQt::GraphicsWindowQt";
     _traits = traits;
-
     init();
-
-    if (valid()) {
-        setState(new osg::State);
-        getState()->setGraphicsContext(this);
-
-        if (_traits.valid() && _traits->sharedContext.valid()) {
-            getState()->setContextID(_traits->sharedContext->getState()->getContextID());
-            incrementContextIDUsageCount(getState()->getContextID());
-        } else {
-            getState()->setContextID(osg::GraphicsContext::createNewContextID());
-        }
-    }
 }
 
 GraphicsWindowQt::~GraphicsWindowQt()
@@ -140,6 +127,20 @@ void GraphicsWindowQt::init()
     // if ( !parent )
     // parent = windowData ? windowData->_parent : NULL;
 
+
+    setState(new osg::State);
+    getState()->setGraphicsContext(this);
+
+    if (_traits.valid() && _traits->sharedContext.valid()) {
+        getState()->setContextID(_traits->sharedContext->getState()->getContextID());
+        incrementContextIDUsageCount(getState()->getContextID());
+    } else {
+        getState()->setContextID(osg::GraphicsContext::createNewContextID());
+    }
+
+    // make sure the event queue has the correct window rectangle size and input range
+    getEventQueue()->syncWindowRectangleWithGraphicsContext();
+
     _initialized = true;
 
     _valid = _initialized;
@@ -244,8 +245,8 @@ bool GraphicsWindowQt::realizeImplementation()
 
     _realized = true;
 
-//// make sure the event queue has the correct window rectangle size and input range
+    // make sure the event queue has the correct window rectangle size and input range
-// getEventQueue()->syncWindowRectangleWithGraphcisContext();
+    getEventQueue()->syncWindowRectangleWithGraphicsContext();
 
     // make this window's context not current
     // note: this must be done as we will probably make the context current from another thread