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Updates AMDA provider to handle different server URLs...
Updates AMDA provider to handle different server URLs Retrieves product's attribute (if it exists) that indicates the server to use to get its data, and generates correct URL according to it
trabillard - - Load All Authors

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r891:dd73a5040007
r932:c6c3dd525d27
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DragDropScroller.cpp
125 lines | 4.4 KiB | text/x-c | CppLexer
/ gui / src / DragAndDrop / DragDropScroller.cpp
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trabillard
Moves the class DragDropScroller in its own file
 r891 #include "DragAndDrop/DragDropScroller.h"
#include <QDragEnterEvent>
#include <QDragMoveEvent>
#include <QScrollBar>
#include <QTimer>
const int SCROLL_SPEED = 5;
const int SCROLL_ZONE_SIZE = 50;
struct DragDropScroller::DragDropScrollerPrivate {
QList<QScrollArea *> m_ScrollAreas;
QScrollArea *m_CurrentScrollArea = nullptr;
std::unique_ptr<QTimer> m_Timer = nullptr;
enum class ScrollDirection { up, down, unknown };
ScrollDirection m_Direction = ScrollDirection::unknown;
explicit DragDropScrollerPrivate() : m_Timer{std::make_unique<QTimer>()}
{
m_Timer->setInterval(0);
}
};
DragDropScroller::DragDropScroller(QObject *parent)
: QObject{parent}, impl{spimpl::make_unique_impl<DragDropScrollerPrivate>()}
{
connect(impl->m_Timer.get(), &QTimer::timeout, this, &DragDropScroller::onTimer);
}
void DragDropScroller::addScrollArea(QScrollArea *scrollArea)
{
impl->m_ScrollAreas << scrollArea;
scrollArea->viewport()->setAcceptDrops(true);
}
void DragDropScroller::removeScrollArea(QScrollArea *scrollArea)
{
impl->m_ScrollAreas.removeAll(scrollArea);
scrollArea->viewport()->setAcceptDrops(false);
}
bool DragDropScroller::eventFilter(QObject *obj, QEvent *event)
{
if (event->type() == QEvent::DragMove) {
auto w = static_cast<QWidget *>(obj);
if (impl->m_CurrentScrollArea && impl->m_CurrentScrollArea->isAncestorOf(w)) {
auto moveEvent = static_cast<QDragMoveEvent *>(event);
auto pos = moveEvent->pos();
if (impl->m_CurrentScrollArea->viewport() != w) {
auto globalPos = w->mapToGlobal(moveEvent->pos());
pos = impl->m_CurrentScrollArea->viewport()->mapFromGlobal(globalPos);
}
auto isInTopZone = pos.y() > impl->m_CurrentScrollArea->viewport()->size().height()
- SCROLL_ZONE_SIZE;
auto isInBottomZone = pos.y() < SCROLL_ZONE_SIZE;
if (!isInTopZone && !isInBottomZone) {
impl->m_Direction = DragDropScrollerPrivate::ScrollDirection::unknown;
impl->m_Timer->stop();
}
else if (!impl->m_Timer->isActive()) {
impl->m_Direction = isInTopZone ? DragDropScrollerPrivate::ScrollDirection::up
: DragDropScrollerPrivate::ScrollDirection::down;
impl->m_Timer->start();
}
}
}
else if (event->type() == QEvent::DragEnter) {
auto w = static_cast<QWidget *>(obj);
for (auto scrollArea : impl->m_ScrollAreas) {
if (impl->m_CurrentScrollArea != scrollArea && scrollArea->isAncestorOf(w)) {
auto enterEvent = static_cast<QDragEnterEvent *>(event);
enterEvent->acceptProposedAction();
enterEvent->setDropAction(Qt::IgnoreAction);
impl->m_CurrentScrollArea = scrollArea;
break;
}
}
}
else if (event->type() == QEvent::DragLeave) {
if (impl->m_CurrentScrollArea) {
if (!QRect(QPoint(), impl->m_CurrentScrollArea->size())
.contains(impl->m_CurrentScrollArea->mapFromGlobal(QCursor::pos()))) {
impl->m_CurrentScrollArea = nullptr;
impl->m_Direction = DragDropScrollerPrivate::ScrollDirection::unknown;
impl->m_Timer->stop();
}
}
}
else if (event->type() == QEvent::Drop) {
if (impl->m_CurrentScrollArea) {
impl->m_CurrentScrollArea = nullptr;
impl->m_Direction = DragDropScrollerPrivate::ScrollDirection::unknown;
impl->m_Timer->stop();
}
}
return false;
}
void DragDropScroller::onTimer()
{
if (impl->m_CurrentScrollArea) {
auto mvt = 0;
switch (impl->m_Direction) {
case DragDropScrollerPrivate::ScrollDirection::up:
mvt = SCROLL_SPEED;
break;
case DragDropScrollerPrivate::ScrollDirection::down:
mvt = -SCROLL_SPEED;
break;
default:
break;
}
impl->m_CurrentScrollArea->verticalScrollBar()->setValue(
impl->m_CurrentScrollArea->verticalScrollBar()->value() + mvt);
}
}