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#include "tagscene.h"
#include <QGraphicsSceneMouseEvent>
void TagScene::setProject(SQLiteSaveFile *proj) {
if (m_proj)
disconnect(m_proj, nullptr, this, nullptr);
m_proj = proj;
reloadScene();
connect(m_proj, &SQLiteSaveFile::tagChange, this, &TagScene::tagChanged);
connect(m_proj, &SQLiteSaveFile::fileReload, this, &TagScene::reloadScene);
connect(m_proj, &SQLiteSaveFile::imageLoaded, this, &TagScene::reloadPicture);
}
void TagScene::tagChanged(TagChange change, const Tag &tag)
{
TagItem *it;
switch(change)
{
case TagChange::CREATED:
addTag(tag);
break;
case TagChange::DELETED:
it = tags.take(tag.id);
assert(it);
removeItem(it);
break;
case TagChange::CHANGED:
it = tags[tag.id];
assert(it);
it->tagUpdated(tag);
break;
}
}
void TagScene::reloadPicture()
{
if (!m_proj)
return;
pix.loadFromData(m_proj->getImage());
if (pix_it)
removeItem(pix_it);
pix_it = new QGraphicsPixmapItem(pix);
pix_it->setZValue(-1);
addItem(pix_it);
QRectF imgBounds = pix_it->boundingRect();
imgBounds = imgBounds.marginsAdded(QMargins(imgBounds.width() * 0.5, imgBounds.height() * 0.5, imgBounds.width() * 0.5, imgBounds.height() * 0.5));
setSceneRect(itemsBoundingRect().united(imgBounds));
qDebug() << "TagScene: reloadPicture()" << pix_it->boundingRect() << pix_it << pix << pix_it->isActive();
invalidate();
imageLoaded();
}
void TagScene::addTag(const Tag tag) {
TagItem *it = new TagItem(tag);
addItem(it);
tags[tag.id] = it;
}
void TagScene::reloadScene()
{
clear();
for (auto *it : tags.values())
delete it;
pix_it = nullptr;
if (!m_proj)
return;
for (const Tag &tag : m_proj->getAllTags())
addTag(tag);
reloadPicture(); /* calls invalidate() for us */
}
void TagScene::selectTag(const Tag &tag)
{
clearSelection();
TagItem *it = tags[tag.id];
if (!it)
return;
it->setSelected(true);
}
void TagScene::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event)
{
QGraphicsItem *it = itemAt(event->scenePos(), QTransform());
if (!it) {
QGraphicsScene::mouseDoubleClickEvent(event);
return;
}
if (it == pix_it) {
m_proj->createTagAt(event->scenePos());
return;
}
TagItem *tagitem = qgraphicsitem_cast<TagItem *>(it);
if (!tagitem) {
QGraphicsScene::mouseDoubleClickEvent(event);
return;
}
tagDoubleClicked(tagitem->tag());
}
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