| @@ -46,6 +46,7 | |||
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46 | 46 | #include <QGraphicsSceneHoverEvent> |
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47 | 47 | #include <QApplication> |
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48 | 48 | #include <QTimer> |
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49 | #include <QThread> | |
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49 | 50 | #endif |
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50 | 51 | |
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51 | 52 | QTCOMMERCIALCHART_BEGIN_NAMESPACE |
| @@ -265,6 +266,8 void DeclarativeChart::initChart(QChart::ChartType type) | |||
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265 | 266 | { |
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266 | 267 | #ifdef CHARTS_FOR_QUICK2 |
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267 | 268 | m_currentSceneImage = 0; |
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269 | m_guiThreadId = QThread::currentThreadId(); | |
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270 | m_paintThreadId = 0; | |
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268 | 271 | |
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269 | 272 | if (type == QChart::ChartTypePolar) |
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270 | 273 | m_chart = new QPolarChart(); |
| @@ -429,10 +432,16 void DeclarativeChart::sceneChanged(QList<QRectF> region) | |||
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429 | 432 | { |
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430 | 433 | Q_UNUSED(region); |
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431 | 434 | |
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432 | if (!m_updatePending) { | |
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433 | m_updatePending = true; | |
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434 | // Do async render to avoid some unnecessary renders. | |
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435 | QTimer::singleShot(0, this, SLOT(renderScene())); | |
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435 | if (m_guiThreadId == m_paintThreadId) { | |
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436 | // Rendering in gui thread, no need for shenannigans, just update | |
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437 | update(); | |
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438 | } else { | |
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439 | // Multi-threaded rendering, need to ensure scene is actually rendered in gui thread | |
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440 | if (!m_updatePending) { | |
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441 | m_updatePending = true; | |
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442 | // Do async render to avoid some unnecessary renders. | |
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443 | QTimer::singleShot(0, this, SLOT(renderScene())); | |
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444 | } | |
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436 | 445 | } |
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437 | 446 | } |
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438 | 447 | |
| @@ -444,6 +453,8 void DeclarativeChart::renderScene() | |||
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444 | 453 | m_currentSceneImage = new QImage(m_chart->size().toSize(), QImage::Format_ARGB32); |
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445 | 454 | m_currentSceneImage->fill(Qt::transparent); |
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446 | 455 | QPainter painter(m_currentSceneImage); |
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456 | if (antialiasing()) | |
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457 | painter.setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::SmoothPixmapTransform); | |
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447 | 458 | QRect renderRect(QPoint(0, 0), m_chart->size().toSize()); |
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448 | 459 | m_scene->render(&painter, renderRect, renderRect); |
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449 | 460 | m_sceneImageLock.unlock(); |
| @@ -453,13 +464,29 void DeclarativeChart::renderScene() | |||
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453 | 464 | |
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454 | 465 | void DeclarativeChart::paint(QPainter *painter) |
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455 | 466 | { |
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456 | m_sceneImageLock.lock(); | |
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457 | if (m_currentSceneImage) { | |
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458 | QRect imageRect(QPoint(0, 0), m_currentSceneImage->size()); | |
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459 | QRect itemRect(QPoint(0, 0), QSize(width(), height())); | |
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460 | painter->drawImage(itemRect, *m_currentSceneImage, imageRect); | |
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467 | if (!m_paintThreadId) { | |
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468 | m_paintThreadId = QThread::currentThreadId(); | |
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469 | if (m_guiThreadId == m_paintThreadId) { | |
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470 | // No need for scene image in single threaded rendering, so delete | |
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471 | // the one that got made by default before the rendering type was | |
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472 | // detected. | |
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473 | delete m_currentSceneImage; | |
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474 | m_currentSceneImage = 0; | |
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475 | } | |
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476 | } | |
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477 | ||
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478 | if (m_guiThreadId == m_paintThreadId) { | |
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479 | QRectF renderRect(QPointF(0, 0), m_chart->size()); | |
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480 | m_scene->render(painter, renderRect, renderRect); | |
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481 | } else { | |
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482 | m_sceneImageLock.lock(); | |
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483 | if (m_currentSceneImage) { | |
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484 | QRect imageRect(QPoint(0, 0), m_currentSceneImage->size()); | |
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485 | QRect itemRect(QPoint(0, 0), QSize(width(), height())); | |
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486 | painter->drawImage(itemRect, *m_currentSceneImage, imageRect); | |
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487 | } | |
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488 | m_sceneImageLock.unlock(); | |
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461 | 489 | } |
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462 | m_sceneImageLock.unlock(); | |
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463 | 490 | } |
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464 | 491 | |
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465 | 492 | void DeclarativeChart::mousePressEvent(QMouseEvent *event) |
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