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127 lines
3.3 KiB
C++
127 lines
3.3 KiB
C++
/*
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* objectbrowser.cpp, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#include "StdInc.h"
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#include "objectbrowser.h"
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#include "../lib/mapObjects/CObjectClassesHandler.h"
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ObjectBrowserProxyModel::ObjectBrowserProxyModel(QObject *parent)
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: QSortFilterProxyModel{parent}, terrain(ETerrainId::ANY_TERRAIN)
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{
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}
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bool ObjectBrowserProxyModel::filterAcceptsRow(int source_row, const QModelIndex & source_parent) const
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{
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bool result = QSortFilterProxyModel::filterAcceptsRow(source_row, source_parent);
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QModelIndex currentIndex = sourceModel()->index(source_row, 0, source_parent);
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int childCount = currentIndex.model()->rowCount(currentIndex);
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if(childCount)
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return false;
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auto item = dynamic_cast<QStandardItemModel*>(sourceModel())->itemFromIndex(currentIndex);
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if(!item)
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return result;
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if(!filterAcceptsRowText(source_row, source_parent))
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return false;
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if(terrain == ETerrainId::ANY_TERRAIN)
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return result;
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auto data = item->data().toJsonObject();
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if(data.empty())
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return result;
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auto objIdJson = data["id"];
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if(objIdJson == QJsonValue::Undefined)
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return result;
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auto objId = data["id"].toInt();
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auto objSubId = data["subid"].toInt();
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auto templateId = data["template"].toInt();
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auto factory = VLC->objtypeh->getHandlerFor(objId, objSubId);
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auto templ = factory->getTemplates()[templateId];
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result = result && templ->canBePlacedAt(terrain);
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//if we are here, just text filter will be applied
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return result;
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}
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bool ObjectBrowserProxyModel::filterAcceptsRowText(int source_row, const QModelIndex &source_parent) const
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{
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if(source_parent.isValid())
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{
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if(filterAcceptsRowText(source_parent.row(), source_parent.parent()))
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return true;
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}
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QModelIndex index = sourceModel()->index(source_row, 0 ,source_parent);
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if(!index.isValid())
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return false;
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auto item = dynamic_cast<QStandardItemModel*>(sourceModel())->itemFromIndex(index);
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if(!item)
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return false;
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return (filter.isNull() || filter.isEmpty() || item->text().contains(filter, Qt::CaseInsensitive));
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}
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Qt::ItemFlags ObjectBrowserProxyModel::flags(const QModelIndex & index) const
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{
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Qt::ItemFlags defaultFlags = QSortFilterProxyModel::flags(index);
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if (index.isValid())
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return Qt::ItemIsDragEnabled | defaultFlags;
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return defaultFlags;
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}
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QMimeData * ObjectBrowserProxyModel::mimeData(const QModelIndexList & indexes) const
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{
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assert(indexes.size() == 1);
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auto * standardModel = qobject_cast<QStandardItemModel*>(sourceModel());
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assert(standardModel);
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QModelIndex index = indexes.front();
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if(!index.isValid())
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return nullptr;
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QMimeData * mimeData = new QMimeData;
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mimeData->setImageData(standardModel->itemFromIndex(mapToSource(index))->data());
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return mimeData;
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}
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ObjectBrowser::ObjectBrowser(QWidget * parent):
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QTreeView(parent)
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{
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setDropIndicatorShown(false);
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}
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void ObjectBrowser::startDrag(Qt::DropActions supportedActions)
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{
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logGlobal->info("Drag'n'drop: Start dragging object from ObjectBrowser");
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auto indexes = selectedIndexes();
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if(indexes.isEmpty())
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return;
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QMimeData * mimeData = model()->mimeData(indexes);
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if(!mimeData)
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return;
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QDrag *drag = new QDrag(this);
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drag->setMimeData(mimeData);
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drag->exec(supportedActions);
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}
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