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profile: port picture code to qt-quick

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This was very painful, because I had to implement rearranging the
paint order of the QSGNodes. The resulting code appears quite
brittle. Let's see where that brings us.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2023-08-12 22:59:56 +02:00
parent d0c26f42d7
commit ebf9ce6d86
22 changed files with 979 additions and 592 deletions
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67
desktop-widgets/profilewidget.cpp
View file

@ -12,12 +12,13 @@
#include "core/subsurface-string.h"
#include "qt-models/diveplannermodel.h"
#include <QToolBar>
#include <QHBoxLayout>
#include <QLabel>
#include <QMimeData>
#include <QQmlEngine>
#include <QQuickWidget>
#include <QStackedWidget>
#include <QLabel>
#include <QToolBar>
// A resizing display of the Subsurface logo when no dive is shown
class EmptyView : public QLabel {
@ -56,6 +57,57 @@ void EmptyView::resizeEvent(QResizeEvent *)
update();
}
// We subclass the QQuickWidget so that we can easily react to drag&drop events
class ProfileViewWidget : public QQuickWidget
{
public:
ProfileViewWidget(ProfileWidget &w) : w(w)
{
setAcceptDrops(true);
}
private:
static constexpr const char *picture_mime_format = "application/x-subsurfaceimagedrop";
ProfileWidget &w;
void dropEvent(QDropEvent *event) override
{
if (event->mimeData()->hasFormat(picture_mime_format)) {
QByteArray itemData = event->mimeData()->data(picture_mime_format);
QDataStream dataStream(&itemData, QIODevice::ReadOnly);
QString filename;
dataStream >> filename;
w.dropPicture(filename, event->pos());
if (event->source() == this) {
event->setDropAction(Qt::MoveAction);
event->accept();
} else {
event->acceptProposedAction();
}
} else {
event->ignore();
}
}
void dragEnterEvent(QDragEnterEvent *event) override
{
// Does the same thing as dragMove event...?
dragMoveEvent(event);
}
void dragMoveEvent(QDragMoveEvent *event) override
{
if (event->mimeData()->hasFormat(picture_mime_format)) {
if (event->source() == this) {
event->setDropAction(Qt::MoveAction);
event->accept();
} else {
event->acceptProposedAction();
}
} else {
event->ignore();
}
}
};
static const QUrl urlProfileView = QUrl(QStringLiteral("qrc:/qml/profileview.qml"));
ProfileWidget::ProfileWidget() : d(nullptr), dc(0), placingCommand(false)
{
@ -77,7 +129,7 @@ ProfileWidget::ProfileWidget() : d(nullptr), dc(0), placingCommand(false)
emptyView.reset(new EmptyView);
viewWidget.reset(new QQuickWidget);
viewWidget.reset(new ProfileViewWidget(*this));
viewWidget->setSource(urlProfileView);
viewWidget->setResizeMode(QQuickWidget::SizeRootObjectToView);
@ -421,3 +473,12 @@ void ProfileWidget::stopEdited()
Setter s(placingCommand, true);
Command::editProfile(editedDive.get(), dc, Command::EditProfileType::EDIT, 0);
}
void ProfileWidget::dropPicture(const QString &filename, QPoint pos)
{
auto view = getView();
if (!d || !view)
return;
offset_t offset { .seconds = int_cast<int32_t>(view->timeAt(pos)) };
Command::setPictureOffset(d, filename, offset);
}