3359 if (!d->backgroundPixmapExposed.isEmpty()) { |
3358 if (!d->backgroundPixmapExposed.isEmpty()) { |
3360 QPainter backgroundPainter(&d->backgroundPixmap); |
3359 QPainter backgroundPainter(&d->backgroundPixmap); |
3361 backgroundPainter.setClipRegion(d->backgroundPixmapExposed, Qt::ReplaceClip); |
3360 backgroundPainter.setClipRegion(d->backgroundPixmapExposed, Qt::ReplaceClip); |
3362 if (viewTransformed) |
3361 if (viewTransformed) |
3363 backgroundPainter.setTransform(viewTransform); |
3362 backgroundPainter.setTransform(viewTransform); |
3364 #ifdef Q_WS_X11 |
|
3365 #undef X11 |
|
3366 if (backgroundPainter.paintEngine()->type() != QPaintEngine::X11) |
|
3367 #define X11 qt_x11Data |
|
3368 #endif |
|
3369 backgroundPainter.setCompositionMode(QPainter::CompositionMode_Source); |
|
3370 QRectF backgroundExposedSceneRect = mapToScene(d->backgroundPixmapExposed.boundingRect()).boundingRect(); |
3363 QRectF backgroundExposedSceneRect = mapToScene(d->backgroundPixmapExposed.boundingRect()).boundingRect(); |
3371 drawBackground(&backgroundPainter, backgroundExposedSceneRect); |
3364 drawBackground(&backgroundPainter, backgroundExposedSceneRect); |
3372 d->backgroundPixmapExposed = QRegion(); |
3365 d->backgroundPixmapExposed = QRegion(); |
3373 } |
3366 } |
3374 |
3367 |
3399 // IndirectPainting (the else branch), because in that case we always save() |
3392 // IndirectPainting (the else branch), because in that case we always save() |
3400 // and restore() in QGraphicsScene::drawItems(). |
3393 // and restore() in QGraphicsScene::drawItems(). |
3401 if (!d->scene->d_func()->painterStateProtection) |
3394 if (!d->scene->d_func()->painterStateProtection) |
3402 painter.setWorldTransform(viewTransform); |
3395 painter.setWorldTransform(viewTransform); |
3403 } else { |
3396 } else { |
|
3397 // Make sure we don't have unpolished items before we draw |
|
3398 if (!d->scene->d_func()->unpolishedItems.isEmpty()) |
|
3399 d->scene->d_func()->_q_polishItems(); |
|
3400 // We reset updateAll here (after we've issued polish events) |
|
3401 // so that we can discard update requests coming from polishEvent(). |
|
3402 d->scene->d_func()->updateAll = false; |
|
3403 |
3404 // Find all exposed items |
3404 // Find all exposed items |
3405 bool allItems = false; |
3405 bool allItems = false; |
3406 QList<QGraphicsItem *> itemList = d->findItems(d->exposedRegion, &allItems, viewTransform); |
3406 QList<QGraphicsItem *> itemList = d->findItems(d->exposedRegion, &allItems, viewTransform); |
3407 if (!itemList.isEmpty()) { |
3407 if (!itemList.isEmpty()) { |
3408 // Generate the style options. |
3408 // Generate the style options. |
3409 const int numItems = itemList.size(); |
3409 const int numItems = itemList.size(); |
3410 QGraphicsItem **itemArray = &itemList[0]; // Relies on QList internals, but is perfectly valid. |
3410 QGraphicsItem **itemArray = &itemList[0]; // Relies on QList internals, but is perfectly valid. |
3411 QStyleOptionGraphicsItem *styleOptionArray = d->allocStyleOptionsArray(numItems); |
3411 QStyleOptionGraphicsItem *styleOptionArray = d->allocStyleOptionsArray(numItems); |
|
3412 QTransform transform(Qt::Uninitialized); |
3412 for (int i = 0; i < numItems; ++i) { |
3413 for (int i = 0; i < numItems; ++i) { |
3413 itemArray[i]->d_ptr->initStyleOption(&styleOptionArray[i], viewTransform, |
3414 QGraphicsItem *item = itemArray[i]; |
3414 d->exposedRegion, allItems); |
3415 QGraphicsItemPrivate *itemd = item->d_ptr.data(); |
|
3416 itemd->initStyleOption(&styleOptionArray[i], viewTransform, d->exposedRegion, allItems); |
|
3417 // Cache the item's area in view coordinates. |
|
3418 // Note that we have to do this here in case the base class implementation |
|
3419 // (QGraphicsScene::drawItems) is not called. If it is, we'll do this |
|
3420 // operation twice, but that's the price one has to pay for using indirect |
|
3421 // painting :-/. |
|
3422 const QRectF brect = adjustedItemEffectiveBoundingRect(item); |
|
3423 if (!itemd->itemIsUntransformable()) { |
|
3424 transform = item->sceneTransform(); |
|
3425 if (viewTransformed) |
|
3426 transform *= viewTransform; |
|
3427 } else { |
|
3428 transform = item->deviceTransform(viewTransform); |
|
3429 } |
|
3430 itemd->paintedViewBoundingRects.insert(d->viewport, transform.mapRect(brect).toRect()); |
3415 } |
3431 } |
3416 // Draw the items. |
3432 // Draw the items. |
3417 drawItems(&painter, numItems, itemArray, styleOptionArray); |
3433 drawItems(&painter, numItems, itemArray, styleOptionArray); |
3418 d->freeStyleOptionsArray(styleOptionArray); |
3434 d->freeStyleOptionsArray(styleOptionArray); |
3419 } |
3435 } |
3608 |
3624 |
3609 painter->fillRect(rect, d->foregroundBrush); |
3625 painter->fillRect(rect, d->foregroundBrush); |
3610 } |
3626 } |
3611 |
3627 |
3612 /*! |
3628 /*! |
|
3629 \obsolete |
|
3630 |
3613 Draws the items \a items in the scene using \a painter, after the |
3631 Draws the items \a items in the scene using \a painter, after the |
3614 background and before the foreground are drawn. \a numItems is the number |
3632 background and before the foreground are drawn. \a numItems is the number |
3615 of items in \a items and options in \a options. \a options is a list of |
3633 of items in \a items and options in \a options. \a options is a list of |
3616 styleoptions; one for each item. Reimplement this function to provide |
3634 styleoptions; one for each item. Reimplement this function to provide |
3617 custom item drawing for this view. |
3635 custom item drawing for this view. |
3618 |
3636 |
3619 The default implementation calls the scene's drawItems() function. |
3637 The default implementation calls the scene's drawItems() function. |
3620 |
3638 |
3621 \obsolete Since Qt 4.6, this function is not called anymore unless |
3639 Since Qt 4.6, this function is not called anymore unless |
3622 the QGraphicsView::IndirectPainting flag is given as an Optimization |
3640 the QGraphicsView::IndirectPainting flag is given as an Optimization |
3623 flag. |
3641 flag. |
3624 |
3642 |
3625 \sa drawForeground(), drawBackground(), QGraphicsScene::drawItems() |
3643 \sa drawForeground(), drawBackground(), QGraphicsScene::drawItems() |
3626 */ |
3644 */ |