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#include "dbtreeview.h"
#include "dbtreemodel.h"
#include "dbtreeitemdelegate.h"
#include "mainwindow.h"
#include "services/dbmanager.h"
#include "common/unused.h"
#include <QDragMoveEvent>
#include <QMenu>
#include <QList>
#include <QMimeData>
#include <QDebug>
DbTreeView::DbTreeView(QWidget *parent) :
QTreeView(parent)
{
contextMenu = new QMenu(this);
connect(this, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(showMenu(QPoint)));
setHeaderHidden(true);
setContextMenuPolicy(Qt::CustomContextMenu);
setSelectionMode(QAbstractItemView::ExtendedSelection);
itemDelegate = new DbTreeItemDelegate();
setItemDelegate(itemDelegate);
}
DbTreeView::~DbTreeView()
{
delete contextMenu;
delete itemDelegate;
}
void DbTreeView::setDbTree(DbTree *dbTree)
{
this->dbTree = dbTree;
}
DbTree* DbTreeView::getDbTree() const
{
return dbTree;
}
DbTreeItem *DbTreeView::currentItem()
{
return dynamic_cast<DbTreeItem*>(model()->itemFromIndex(currentIndex()));
}
DbTreeItem *DbTreeView::itemAt(const QPoint &pos)
{
return dynamic_cast<DbTreeItem*>(model()->itemFromIndex(indexAt(pos)));
}
QList<DbTreeItem *> DbTreeView::selectionItems()
{
QList<DbTreeItem*> items;
QModelIndexList selectedIndexes = selectionModel()->selectedIndexes();
for (QModelIndex modIdx : selectedIndexes)
items += dynamic_cast<DbTreeItem*>(model()->itemFromIndex(modIdx));
return items;
}
DbTreeModel *DbTreeView::model() const
{
return dynamic_cast<DbTreeModel*>(QTreeView::model());
}
void DbTreeView::showMenu(const QPoint &pos)
{
contextMenu->clear();
DbTreeItem* itemUnderCursor = itemAt(pos);
if (!itemUnderCursor)
selectionModel()->clear();
DbTreeItem* item = getItemForAction();
dbTree->setupActionsForMenu(item, contextMenu);
if (contextMenu->actions().size() == 0)
return;
dbTree->updateActionStates(item);
contextMenu->popup(mapToGlobal(pos));
}
void DbTreeView::updateItemHidden(DbTreeItem* item)
{
setRowHidden(item->index().row(), item->index().parent(), item->isHidden());
}
DbTreeItem *DbTreeView::getItemForAction(bool onlySelected) const
{
QModelIndex idx = selectionModel()->currentIndex();
if (onlySelected && !selectionModel()->isSelected(idx))
return nullptr;
return dynamic_cast<DbTreeItem*>(model()->itemFromIndex(idx));
}
void DbTreeView::dragEnterEvent(QDragEnterEvent* e)
{
QTreeView::dragEnterEvent(e);
if (e->mimeData()->hasUrls())
e->acceptProposedAction();
}
void DbTreeView::dragMoveEvent(QDragMoveEvent *event)
{
QTreeView::dragMoveEvent(event);
DbTreeItem* dstItem = itemAt(event->pos());
// Depending on where we drop we need a type of item we drop ON,
// or type of parent item if we drop ABOVE/BELOW. If we drop on empty space,
// we leave type as default.
if (dstItem)
{
QAbstractItemView::DropIndicatorPosition dropPosition = dropIndicatorPosition();
switch (dropPosition)
{
case QAbstractItemView::OnItem:
break;
case QAbstractItemView::AboveItem:
case QAbstractItemView::BelowItem:
{
dstItem = dstItem->parentDbTreeItem();
break;
}
case QAbstractItemView::OnViewport:
dstItem = nullptr;
break;
}
}
//qDebug() << event->mimeData()->formats();
const QMimeData* data = event->mimeData();
if (dbTree->isMimeDataValidForItem(data, dstItem))
event->acceptProposedAction();
else
event->ignore();
}
void DbTreeView::mouseDoubleClickEvent(QMouseEvent *event)
{
DbTreeItem* itemUnderCursor = itemAt(event->pos());
if (itemUnderCursor && !handleDoubleClick(itemUnderCursor))
return;
QTreeView::mouseDoubleClickEvent(event);
}
bool DbTreeView::handleDoubleClick(DbTreeItem *item)
{
switch (item->getType())
{
case DbTreeItem::Type::DIR:
break;
case DbTreeItem::Type::DB:
{
if (item->getDb()->isValid())
return handleDbDoubleClick(item);
}
case DbTreeItem::Type::TABLES:
break;
case DbTreeItem::Type::VIRTUAL_TABLE:
// TODO if module for virtual table is loaded - show virtual table window
break;
case DbTreeItem::Type::TABLE:
return handleTableDoubleClick(item);
case DbTreeItem::Type::INDEXES:
break;
case DbTreeItem::Type::INDEX:
return handleIndexDoubleClick(item);
case DbTreeItem::Type::TRIGGERS:
break;
case DbTreeItem::Type::TRIGGER:
return handleTriggerDoubleClick(item);
case DbTreeItem::Type::VIEWS:
break;
case DbTreeItem::Type::VIEW:
return handleViewDoubleClick(item);
case DbTreeItem::Type::COLUMNS:
break;
case DbTreeItem::Type::COLUMN:
return handleColumnDoubleClick(item);
case DbTreeItem::Type::ITEM_PROTOTYPE:
break;
}
return true;
}
bool DbTreeView::handleDbDoubleClick(DbTreeItem *item)
{
if (!item->getDb()->isOpen())
{
dbTree->getAction(DbTree::CONNECT_TO_DB)->trigger();
return false;
}
return true;
}
bool DbTreeView::handleTableDoubleClick(DbTreeItem *item)
{
dbTree->openTable(item);
return false;
}
bool DbTreeView::handleIndexDoubleClick(DbTreeItem *item)
{
dbTree->editIndex(item);
return false;
}
bool DbTreeView::handleTriggerDoubleClick(DbTreeItem *item)
{
dbTree->editTrigger(item);
return false;
}
bool DbTreeView::handleViewDoubleClick(DbTreeItem *item)
{
dbTree->openView(item);
return false;
}
bool DbTreeView::handleColumnDoubleClick(DbTreeItem *item)
{
dbTree->editColumn(item);
return false;
}
QPoint DbTreeView::getLastDropPosition() const
{
return lastDropPosition;
}
QModelIndexList DbTreeView::getSelectedIndexes() const
{
QModelIndexList idxList = selectedIndexes();
if (currentIndex().isValid() && !idxList.contains(currentIndex()))
idxList << currentIndex();
return idxList;
}
void DbTreeView::dropEvent(QDropEvent* e)
{
lastDropPosition = e->pos();
QTreeView::dropEvent(e);
if (!e->isAccepted() && e->mimeData()->hasUrls() && !dbTree->getModel()->hasDbTreeItem(e->mimeData()))
{
dbTree->getModel()->dropMimeData(e->mimeData(), Qt::CopyAction, -1, -1, dbTree->getModel()->root()->index());
e->accept();
}
}
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