diff options
Diffstat (limited to 'src/datavisualization/engine/qabstract3dgraph.cpp')
| -rw-r--r-- | src/datavisualization/engine/qabstract3dgraph.cpp | 300 |
1 files changed, 271 insertions, 29 deletions
diff --git a/src/datavisualization/engine/qabstract3dgraph.cpp b/src/datavisualization/engine/qabstract3dgraph.cpp index b8fa92e8..e51d9ce4 100644 --- a/src/datavisualization/engine/qabstract3dgraph.cpp +++ b/src/datavisualization/engine/qabstract3dgraph.cpp @@ -22,6 +22,7 @@ #include "qabstract3dinputhandler_p.h" #include "q3dscene_p.h" #include "qutils.h" +#include "utils_p.h" #include <QtGui/QGuiApplication> #include <QtGui/QOpenGLContext> @@ -29,6 +30,9 @@ #include <QtGui/QPainter> #include <QtGui/QOpenGLFramebufferObject> #include <QtGui/QOffscreenSurface> +#if defined(Q_OS_OSX) +#include <qpa/qplatformnativeinterface.h> +#endif QT_BEGIN_NAMESPACE_DATAVISUALIZATION @@ -148,7 +152,7 @@ QT_BEGIN_NAMESPACE_DATAVISUALIZATION \value OptimizationDefault Provides the full feature set at a reasonable performance. \value OptimizationStatic - Beta level feature. Optimizes the rendering of static data sets at the expense of some features. + Optimizes the rendering of static data sets at the expense of some features. */ /*! @@ -169,11 +173,7 @@ QAbstract3DGraph::QAbstract3DGraph(QAbstract3DGraphPrivate *d, const QSurfaceFor if (format) { surfaceFormat = *format; // Make sure renderable type is correct -#if !defined(QT_OPENGL_ES_2) - surfaceFormat.setRenderableType(QSurfaceFormat::OpenGL); -#else - surfaceFormat.setRenderableType(QSurfaceFormat::OpenGLES); -#endif + surfaceFormat.setRenderableType(QSurfaceFormat::DefaultRenderableType); } else { surfaceFormat = qDefaultSurfaceFormat(); } @@ -197,17 +197,24 @@ QAbstract3DGraph::QAbstract3DGraph(QAbstract3DGraphPrivate *d, const QSurfaceFor qDebug() << "GLSL version:" << (const char *)shaderVersion; #endif -#if !defined(QT_OPENGL_ES_2) - // If we have real OpenGL, GLSL version must be 1.2 or over. Quit if not. - QStringList splitversionstr = - QString::fromLatin1((const char *)shaderVersion).split(QChar::fromLatin1(' ')); - if (splitversionstr[0].toFloat() < 1.2) - qFatal("GLSL version must be 1.20 or higher. Try installing latest display drivers."); -#else - Q_UNUSED(shaderVersion) -#endif + if (!Utils::isOpenGLES()) { + // If we have real OpenGL, GLSL version must be 1.2 or over. Quit if not. + QStringList splitversionstr = + QString::fromLatin1((const char *)shaderVersion).split(QChar::fromLatin1(' ')); + if (splitversionstr[0].toFloat() < 1.2) + qFatal("GLSL version must be 1.20 or higher. Try installing latest display drivers."); + } d_ptr->renderLater(); + +#if defined(Q_OS_OSX) + // Enable touch events for Mac touchpads + typedef void * (*EnableTouch)(QWindow*, bool); + EnableTouch enableTouch = + (EnableTouch)QGuiApplication::platformNativeInterface()->nativeResourceFunctionForIntegration("registertouchwindow"); + if (enableTouch) + enableTouch(this, true); +#endif } /*! @@ -400,7 +407,7 @@ void QAbstract3DGraph::clearSelection() * \return index to the added item if add was successful, -1 if trying to add a null item, and * index of the item if trying to add an already added item. * - * \sa removeCustomItems(), removeCustomItem(), removeCustomItemAt() + * \sa removeCustomItems(), removeCustomItem(), removeCustomItemAt(), customItems() * * \since QtDataVisualization 1.1 */ @@ -455,6 +462,16 @@ void QAbstract3DGraph::releaseCustomItem(QCustom3DItem *item) } /*! + * \return list of all added custom items. + * \since QtDataVisualization 1.2 + * \sa addCustomItem() + */ +QList<QCustom3DItem *> QAbstract3DGraph::customItems() const +{ + return d_ptr->m_visualController->customItems(); +} + +/*! * Can be used to query the index of the selected label after receiving \c selectedElementChanged * signal with any label type. Selection is valid until the next \c selectedElementChanged signal. * @@ -545,6 +562,8 @@ QAbstract3DGraph::ElementType QAbstract3DGraph::selectedElement() const * \since QtDataVisualization 1.1 * * \return rendered image. + * + * \note OpenGL ES2 does not support anitialiasing, so \a msaaSamples is always forced to \c{0}. */ QImage QAbstract3DGraph::renderToImage(int msaaSamples, const QSize &imageSize) { @@ -591,8 +610,15 @@ qreal QAbstract3DGraph::currentFps() const * \property QAbstract3DGraph::orthoProjection * \since QtDataVisualization 1.1 * - * If \c {true}, orthographic projection will be used for displaying the graph. Defaults to \c{false}. + * If \c {true}, orthographic projection will be used for displaying the graph. + * \note Orthographic projection can be used to create 2D graphs by replacing the default input + * handler with one that doesn't allow rotating the graph and setting the camera to view the graph + * directly from the side or from the top. Also, axis labels typically need to be rotated when + * viewing the graph from the sides. + * Defaults to \c{false}. * \note Shadows will be disabled when set to \c{true}. + * + * \sa QAbstract3DAxis::labelAutoRotation, Q3DCamera::cameraPreset */ void QAbstract3DGraph::setOrthoProjection(bool enable) { @@ -608,14 +634,16 @@ bool QAbstract3DGraph::isOrthoProjection() const * \property QAbstract3DGraph::aspectRatio * \since QtDataVisualization 1.1 * - * Aspect ratio of the graph data. This is the ratio of data scaling between horizontal and - * vertical axes. Defaults to \c{2.0}. + * The aspect ratio is the ratio of the graph scaling between the longest axis on the horizontal + * plane and the Y-axis. Defaults to \c{2.0}. * * \note Has no effect on Q3DBars. + * + * \sa horizontalAspectRatio */ void QAbstract3DGraph::setAspectRatio(qreal ratio) { - d_ptr->m_visualController->setAspectRatio(float(ratio)); + d_ptr->m_visualController->setAspectRatio(ratio); } qreal QAbstract3DGraph::aspectRatio() const @@ -626,14 +654,20 @@ qreal QAbstract3DGraph::aspectRatio() const /*! * \property QAbstract3DGraph::optimizationHints * - * Defines if the rendering optimization is default or static. Default mode provides the full feature set at - * reasonable performance. Static is a beta level feature and currently supports only a subset of the - * features on the Scatter graph. Missing features are object gradient for mesh objects, both gradients - * for points, and diffuse and specular color on rotations. At this point static is intended just for - * introducing a new feature. It optimizes graph rendering and is ideal for large non-changing data - * sets. It is slower with dynamic data changes and item rotations. Selection is not optimized, so using it - * with massive data sets is not advisable. + * Defines if the rendering optimization is default or static. Default mode provides the full + * feature set at reasonable performance. Static mode optimizes graph rendering and is ideal for + * large non-changing data sets. It is slower with dynamic data changes and item rotations. + * Selection is not optimized, so using it with massive data sets is not advisable. + * Static works only on the Scatter graph. * Defaults to \c{OptimizationDefault}. + * + * \note On some environments, large graphs using static optimization may not render, because + * all of the items are rendered using a single draw call, and different graphics drivers have + * different maximum vertice counts per call that they support. + * This is mostly an issue on 32bit and/or OpenGL ES2 platforms. + * To work around this issue, choose an item mesh with low vertex count or use the point mesh. + * + * \sa QAbstract3DSeries::mesh */ void QAbstract3DGraph::setOptimizationHints(OptimizationHints hints) { @@ -646,6 +680,195 @@ QAbstract3DGraph::OptimizationHints QAbstract3DGraph::optimizationHints() const } /*! + * \property QAbstract3DGraph::polar + * \since QtDataVisualization 1.2 + * + * If \c {true}, the horizontal axes are changed into polar axes. The X axis becomes the + * angular axis and the Z axis becomes the radial axis. + * Polar mode is not available for bar graphs. + * + * Defaults to \c{false}. + * + * \sa orthoProjection, radialLabelOffset + */ +void QAbstract3DGraph::setPolar(bool enable) +{ + d_ptr->m_visualController->setPolar(enable); +} + +bool QAbstract3DGraph::isPolar() const +{ + return d_ptr->m_visualController->isPolar(); +} + +/*! + * \property QAbstract3DGraph::radialLabelOffset + * \since QtDataVisualization 1.2 + * + * This property specifies the normalized horizontal offset for the axis labels of the radial + * polar axis. The value 0.0 indicates the labels should be drawn next to the 0-angle angular + * axis grid line. The value 1.0 indicates the labels are drawn on their normal place at the edge + * of the graph background. + * This property is ignored if polar property value is \c{false}. Defaults to 1.0. + * + * \sa polar + */ +void QAbstract3DGraph::setRadialLabelOffset(float offset) +{ + d_ptr->m_visualController->setRadialLabelOffset(offset); +} + +float QAbstract3DGraph::radialLabelOffset() const +{ + return d_ptr->m_visualController->radialLabelOffset(); +} + +/*! + * \property QAbstract3DGraph::horizontalAspectRatio + * \since QtDataVisualization 1.2 + * + * The horizontal aspect ratio is the ratio of the graph scaling between the X and Z axes. + * Value of 0.0 indicates automatic scaling according to axis ranges. + * Defaults to \c{0.0}. + * + * \note Has no effect on Q3DBars, which handles scaling on the horizontal plane via + * \l{Q3DBars::barThickness}{barThickness} and \l{Q3DBars::barSpacing}{barSpacing} properties. + * Polar graphs also ignore this property. + * + * \sa aspectRatio, polar, Q3DBars::barThickness, Q3DBars::barSpacing + */ +void QAbstract3DGraph::setHorizontalAspectRatio(qreal ratio) +{ + d_ptr->m_visualController->setHorizontalAspectRatio(ratio); +} + +qreal QAbstract3DGraph::horizontalAspectRatio() const +{ + return d_ptr->m_visualController->horizontalAspectRatio(); +} + +/*! + * \property QAbstract3DGraph::reflection + * \since QtDataVisualization 1.2 + * + * Sets floor reflections on or off. Defaults to \c{false}. + * + * \note Affects only Q3DBars. + * + * \note In Q3DBars graphs holding both positive and negative values, reflections are not supported + * for custom items that intersect the floor plane. In that case, reflections should be turned off + * to avoid incorrect rendering. + * + * \note If using custom surface format, stencil buffer needs to be defined + * (QSurfaceFormat::setStencilBufferSize()) for reflections to work. + * + * \sa reflectivity + */ +void QAbstract3DGraph::setReflection(bool enable) +{ + d_ptr->m_visualController->setReflection(enable); +} + +bool QAbstract3DGraph::isReflection() const +{ + return d_ptr->m_visualController->reflection(); +} + +/*! + * \property QAbstract3DGraph::reflectivity + * \since QtDataVisualization 1.2 + * + * Adjusts floor reflectivity, larger number being more reflective. Valid range is \c{[0...1]}. + * Defaults to \c{0.5}. + * + * \note Affects only Q3DBars. + * + * \sa reflection + */ +void QAbstract3DGraph::setReflectivity(qreal reflectivity) +{ + d_ptr->m_visualController->setReflectivity(reflectivity); +} + +qreal QAbstract3DGraph::reflectivity() const +{ + return d_ptr->m_visualController->reflectivity(); +} + +/*! + * \property QAbstract3DGraph::locale + * \since QtDataVisualization 1.2 + * + * Sets the locale used for formatting various numeric labels. + * Defaults to \c{"C"} locale. + * + * \sa QValue3DAxis::labelFormat + */ +void QAbstract3DGraph::setLocale(const QLocale &locale) +{ + d_ptr->m_visualController->setLocale(locale); +} + +QLocale QAbstract3DGraph::locale() const +{ + return d_ptr->m_visualController->locale(); +} + +/*! + * \property QAbstract3DGraph::queriedGraphPosition + * \since QtDataVisualization 1.2 + * + * This read-only property contains the latest graph position values along each axis queried using + * Q3DScene::graphPositionQuery. The values are normalized to range \c{[-1, 1]}. + * If the queried position was outside the graph bounds, the values + * will not reflect the real position, but will instead be some undefined position outside + * the range \c{[-1, 1]}. The value will be undefined before any queries are made. + * + * There isn't a single correct 3D coordinate to match to each specific screen position, so to be + * consistent, the queries are always done against the inner sides of an invisible box surrounding + * the graph. + * + * \note Bar graphs only allow querying graph position at the graph floor level, + * so the Y-value is always zero for bar graphs and the valid queries can be only made at + * screen positions that contain the floor of the graph. + * + * \sa Q3DScene::graphPositionQuery + */ +QVector3D QAbstract3DGraph::queriedGraphPosition() const +{ + return d_ptr->m_visualController->queriedGraphPosition(); +} + +/*! + * \property QAbstract3DGraph::margin + * \since QtDataVisualization 1.2 + * + * This property contains the absolute value used for graph margin. The graph margin is the space + * left between the edge of the plottable graph area and the edge of the graph background. + * If the margin value is negative, the margins are determined automatically and can vary according + * to size of the items in the series and the type of the graph. + * The value is interpreted as a fraction of Y-axis range, provided the graph aspect ratios have + * not beed changed from the defaults. + * Defaults to \c{-1.0}. + * + * \note Having smaller than the automatically determined margin on scatter graph can cause + * the scatter items at the edges of the graph to overlap with the graph background. + * + * \note On scatter and surface graphs, if the margin is comparatively small to the axis label + * size, the positions of the edge labels of the axes are adjusted to avoid overlap with + * the edge labels of the neighboring axes. + */ +void QAbstract3DGraph::setMargin(qreal margin) +{ + d_ptr->m_visualController->setMargin(margin); +} + +qreal QAbstract3DGraph::margin() const +{ + return d_ptr->m_visualController->margin(); +} + +/*! * \internal */ bool QAbstract3DGraph::event(QEvent *event) @@ -795,6 +1018,23 @@ void QAbstract3DGraphPrivate::setVisualController(Abstract3DController *controll QObject::connect(m_visualController, &Abstract3DController::aspectRatioChanged, q_ptr, &QAbstract3DGraph::aspectRatioChanged); + QObject::connect(m_visualController, &Abstract3DController::polarChanged, q_ptr, + &QAbstract3DGraph::polarChanged); + QObject::connect(m_visualController, &Abstract3DController::radialLabelOffsetChanged, q_ptr, + &QAbstract3DGraph::radialLabelOffsetChanged); + QObject::connect(m_visualController, &Abstract3DController::horizontalAspectRatioChanged, q_ptr, + &QAbstract3DGraph::horizontalAspectRatioChanged); + + QObject::connect(m_visualController, &Abstract3DController::reflectionChanged, q_ptr, + &QAbstract3DGraph::reflectionChanged); + QObject::connect(m_visualController, &Abstract3DController::reflectivityChanged, q_ptr, + &QAbstract3DGraph::reflectivityChanged); + QObject::connect(m_visualController, &Abstract3DController::localeChanged, q_ptr, + &QAbstract3DGraph::localeChanged); + QObject::connect(m_visualController, &Abstract3DController::queriedGraphPositionChanged, q_ptr, + &QAbstract3DGraph::queriedGraphPositionChanged); + QObject::connect(m_visualController, &Abstract3DController::marginChanged, q_ptr, + &QAbstract3DGraph::marginChanged); } void QAbstract3DGraphPrivate::handleDevicePixelRatioChange() @@ -849,8 +1089,10 @@ QImage QAbstract3DGraphPrivate::renderToImage(int msaaSamples, const QSize &imag // Render the wanted frame offscreen m_context->makeCurrent(m_offscreenSurface); fboFormat.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil); - fboFormat.setInternalTextureFormat(GL_RGB); - fboFormat.setSamples(msaaSamples); + if (!Utils::isOpenGLES()) { + fboFormat.setInternalTextureFormat(GL_RGB); + fboFormat.setSamples(msaaSamples); + } fbo = new QOpenGLFramebufferObject(imageSize, fboFormat); if (fbo->isValid()) { QRect originalViewport = m_visualController->m_scene->viewport(); |