#include <QApplication>
#include <QGraphicsScene>
#include <QGraphicsView>
-#include <QPropertyAnimation>
#include <QScrollBar>
#include <QStyle>
#include <QStyleOption>
event->ignore();
}
-
-
KItemListContainer::KItemListContainer(KItemListController* controller, QWidget* parent) :
QAbstractScrollArea(parent),
m_controller(controller),
{
Q_ASSERT(controller);
controller->setParent(this);
- initialize();
-}
-KItemListContainer::KItemListContainer(QWidget* parent) :
- QAbstractScrollArea(parent),
- m_controller(0),
- m_horizontalSmoothScroller(0),
- m_verticalSmoothScroller(0)
-{
- initialize();
+ QGraphicsView* graphicsView = new KItemListContainerViewport(new QGraphicsScene(this), this);
+ setViewport(graphicsView);
+
+ m_horizontalSmoothScroller = new KItemListSmoothScroller(horizontalScrollBar(), this);
+ m_verticalSmoothScroller = new KItemListSmoothScroller(verticalScrollBar(), this);
+
+ if (controller->model()) {
+ slotModelChanged(controller->model(), 0);
+ }
+ if (controller->view()) {
+ slotViewChanged(controller->view(), 0);
+ }
+
+ connect(controller, &KItemListController::modelChanged,
+ this, &KItemListContainer::slotModelChanged);
+ connect(controller, &KItemListController::viewChanged,
+ this, &KItemListContainer::slotViewChanged);
}
KItemListContainer::~KItemListContainer()
{
+ // Don't rely on the QObject-order to delete the controller, otherwise
+ // the QGraphicsScene might get deleted before the view.
+ delete m_controller;
+ m_controller = 0;
}
KItemListController* KItemListContainer::controller() const
return m_controller;
}
+void KItemListContainer::setEnabledFrame(bool enable)
+{
+ QGraphicsView* graphicsView = qobject_cast<QGraphicsView*>(viewport());
+ if (enable) {
+ setFrameShape(QFrame::StyledPanel);
+ graphicsView->setPalette(palette());
+ graphicsView->viewport()->setAutoFillBackground(true);
+ } else {
+ setFrameShape(QFrame::NoFrame);
+ // Make the background of the container transparent and apply the window-text color
+ // to the text color, so that enough contrast is given for all color
+ // schemes
+ QPalette p = graphicsView->palette();
+ p.setColor(QPalette::Active, QPalette::Text, p.color(QPalette::Active, QPalette::WindowText));
+ p.setColor(QPalette::Inactive, QPalette::Text, p.color(QPalette::Inactive, QPalette::WindowText));
+ p.setColor(QPalette::Disabled, QPalette::Text, p.color(QPalette::Disabled, QPalette::WindowText));
+ graphicsView->setPalette(p);
+ graphicsView->viewport()->setAutoFillBackground(false);
+ }
+}
+
+bool KItemListContainer::enabledFrame() const
+{
+ const QGraphicsView* graphicsView = qobject_cast<QGraphicsView*>(viewport());
+ return graphicsView->autoFillBackground();
+}
+
void KItemListContainer::keyPressEvent(QKeyEvent* event)
{
// TODO: We should find a better way to handle the key press events in the view.
KItemListSmoothScroller* smoothScroller = scrollHorizontally ?
m_horizontalSmoothScroller : m_verticalSmoothScroller;
- const int numDegrees = event->delta() / 8;
- const int numSteps = numDegrees / 15;
-
const QScrollBar* scrollBar = smoothScroller->scrollBar();
- smoothScroller->scrollTo(scrollBar->value() - numSteps * scrollBar->pageStep() / 4);
+ if (!event->pixelDelta().isNull()) {
+ const int numPixels = event->pixelDelta().y();
+ smoothScroller->scrollTo(scrollBar->value() - numPixels);
+ } else {
+ const int numDegrees = event->angleDelta().y() / 8;
+ const int numSteps = numDegrees / 15;
+ smoothScroller->scrollTo(scrollBar->value() - numSteps * scrollBar->pageStep() / 4);
+ }
event->accept();
}
QGraphicsScene* scene = static_cast<QGraphicsView*>(viewport())->scene();
if (previous) {
scene->removeItem(previous);
- disconnect(previous, SIGNAL(scrollOrientationChanged(Qt::Orientation,Qt::Orientation)), this, SLOT(slotScrollOrientationChanged(Qt::Orientation,Qt::Orientation)));
- disconnect(previous, SIGNAL(scrollOffsetChanged(qreal,qreal)), this, SLOT(updateScrollOffsetScrollBar()));
- disconnect(previous, SIGNAL(maximumScrollOffsetChanged(qreal,qreal)), this, SLOT(updateScrollOffsetScrollBar()));
- disconnect(previous, SIGNAL(itemOffsetChanged(qreal,qreal)), this, SLOT(updateItemOffsetScrollBar()));
- disconnect(previous, SIGNAL(maximumItemOffsetChanged(qreal,qreal)), this, SLOT(updateItemOffsetScrollBar()));
- disconnect(previous, SIGNAL(scrollTo(qreal)), this, SLOT(scrollTo(qreal)));
+ disconnect(previous, &KItemListView::scrollOrientationChanged,
+ this, &KItemListContainer::slotScrollOrientationChanged);
+ disconnect(previous, &KItemListView::scrollOffsetChanged,
+ this, &KItemListContainer::updateScrollOffsetScrollBar);
+ disconnect(previous, &KItemListView::maximumScrollOffsetChanged,
+ this, &KItemListContainer::updateScrollOffsetScrollBar);
+ disconnect(previous, &KItemListView::itemOffsetChanged,
+ this, &KItemListContainer::updateItemOffsetScrollBar);
+ disconnect(previous, &KItemListView::maximumItemOffsetChanged,
+ this, &KItemListContainer::updateItemOffsetScrollBar);
+ disconnect(previous, &KItemListView::scrollTo, this, &KItemListContainer::scrollTo);
m_horizontalSmoothScroller->setTargetObject(0);
m_verticalSmoothScroller->setTargetObject(0);
}
if (current) {
scene->addItem(current);
- connect(current, SIGNAL(scrollOrientationChanged(Qt::Orientation,Qt::Orientation)), this, SLOT(slotScrollOrientationChanged(Qt::Orientation,Qt::Orientation)));
- connect(current, SIGNAL(scrollOffsetChanged(qreal,qreal)), this, SLOT(updateScrollOffsetScrollBar()));
- connect(current, SIGNAL(maximumScrollOffsetChanged(qreal,qreal)), this, SLOT(updateScrollOffsetScrollBar()));
- connect(current, SIGNAL(itemOffsetChanged(qreal,qreal)), this, SLOT(updateItemOffsetScrollBar()));
- connect(current, SIGNAL(maximumItemOffsetChanged(qreal,qreal)), this, SLOT(updateItemOffsetScrollBar()));
- connect(current, SIGNAL(scrollTo(qreal)), this, SLOT(scrollTo(qreal)));
+ connect(current, &KItemListView::scrollOrientationChanged,
+ this, &KItemListContainer::slotScrollOrientationChanged);
+ connect(current, &KItemListView::scrollOffsetChanged,
+ this, &KItemListContainer::updateScrollOffsetScrollBar);
+ connect(current, &KItemListView::maximumScrollOffsetChanged,
+ this, &KItemListContainer::updateScrollOffsetScrollBar);
+ connect(current, &KItemListView::itemOffsetChanged,
+ this, &KItemListContainer::updateItemOffsetScrollBar);
+ connect(current, &KItemListView::maximumItemOffsetChanged,
+ this, &KItemListContainer::updateItemOffsetScrollBar);
+ connect(current, &KItemListView::scrollTo, this, &KItemListContainer::scrollTo);
m_horizontalSmoothScroller->setTargetObject(current);
m_verticalSmoothScroller->setTargetObject(current);
updateSmoothScrollers(current->scrollOrientation());
QScrollBar* scrollOffsetScrollBar = 0;
int singleStep = 0;
int pageStep = 0;
+ int maximum = 0;
if (view->scrollOrientation() == Qt::Vertical) {
smoothScroller = m_verticalSmoothScroller;
scrollOffsetScrollBar = verticalScrollBar();
singleStep = view->itemSize().height();
- pageStep = view->size().height();
+ // We cannot use view->size().height() because this height might
+ // include the header widget, which is not part of the scrolled area.
+ pageStep = view->verticalPageStep();
+
+ // However, the total height of the view must be considered for the
+ // maximum value of the scroll bar. Note that the view's scrollOffset()
+ // refers to the offset of the top part of the view, which might be
+ // hidden behind the header.
+ maximum = qMax(0, int(view->maximumScrollOffset() - view->size().height()));
} else {
smoothScroller = m_horizontalSmoothScroller;
scrollOffsetScrollBar = horizontalScrollBar();
singleStep = view->itemSize().width();
pageStep = view->size().width();
+ maximum = qMax(0, int(view->maximumScrollOffset() - view->size().width()));
}
const int value = view->scrollOffset();
- const int maximum = qMax(0, int(view->maximumScrollOffset() - pageStep));
if (smoothScroller->requestScrollBarUpdate(maximum)) {
const bool updatePolicy = (scrollOffsetScrollBar->maximum() > 0 && maximum == 0)
|| horizontalScrollBarPolicy() == Qt::ScrollBarAlwaysOn;
int extra = frameWidth() * 2;
QStyleOption option;
option.initFrom(this);
+ int scrollbarSpacing = 0;
if (style()->styleHint(QStyle::SH_ScrollView_FrameOnlyAroundContents, &option, this)) {
- extra += style()->pixelMetric(QStyle::PM_ScrollView_ScrollBarSpacing, &option, this);
+ scrollbarSpacing = style()->pixelMetric(QStyle::PM_ScrollView_ScrollBarSpacing, &option, this);
}
const int widthDec = verticalScrollBar()->isVisible()
- ? extra + style()->pixelMetric(QStyle::PM_ScrollBarExtent, &option, this)
+ ? extra + scrollbarSpacing + style()->pixelMetric(QStyle::PM_ScrollBarExtent, &option, this)
: extra;
const int heightDec = horizontalScrollBar()->isVisible()
- ? extra + style()->pixelMetric(QStyle::PM_ScrollBarExtent, &option, this)
+ ? extra + scrollbarSpacing + style()->pixelMetric(QStyle::PM_ScrollBarExtent, &option, this)
: extra;
- rect.adjust(0, 0, -widthDec, -heightDec);
-
- const QRectF newGeometry(0, 0, rect.width(), rect.height());
+ const QRectF newGeometry(0, 0, rect.width() - widthDec,
+ rect.height() - heightDec);
if (m_controller->view()->geometry() != newGeometry) {
m_controller->view()->setGeometry(newGeometry);
- static_cast<KItemListContainerViewport*>(viewport())->scene()->setSceneRect(0, 0, rect.width(), rect.height());
- static_cast<KItemListContainerViewport*>(viewport())->viewport()->setGeometry(QRect(0, 0, rect.width(), rect.height()));
+ // Get the real geometry of the view again since the scrollbars
+ // visibilities and the view geometry may have changed in re-layout.
+ static_cast<KItemListContainerViewport*>(viewport())->scene()->setSceneRect(m_controller->view()->geometry());
+ static_cast<KItemListContainerViewport*>(viewport())->viewport()->setGeometry(m_controller->view()->geometry().toRect());
updateScrollOffsetScrollBar();
updateItemOffsetScrollBar();
}
}
-void KItemListContainer::initialize()
-{
- if (m_controller) {
- if (m_controller->model()) {
- slotModelChanged(m_controller->model(), 0);
- }
- if (m_controller->view()) {
- slotViewChanged(m_controller->view(), 0);
- }
- } else {
- m_controller = new KItemListController(this);
- }
-
- connect(m_controller, SIGNAL(modelChanged(KItemModelBase*,KItemModelBase*)),
- this, SLOT(slotModelChanged(KItemModelBase*,KItemModelBase*)));
- connect(m_controller, SIGNAL(viewChanged(KItemListView*,KItemListView*)),
- this, SLOT(slotViewChanged(KItemListView*,KItemListView*)));
-
- QGraphicsView* graphicsView = new KItemListContainerViewport(new QGraphicsScene(this), this);
- setViewport(graphicsView);
-
- m_horizontalSmoothScroller = new KItemListSmoothScroller(horizontalScrollBar(), this);
- m_verticalSmoothScroller = new KItemListSmoothScroller(verticalScrollBar(), this);
-}
-
-#include "kitemlistcontainer.moc"
projects / dolphin.git / blobdiff