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o3de/Code/Editor/Plugins/ComponentEntityEditorPlugin/UI/ComponentPalette/ComponentDataModel.h

129 lines
4.6 KiB
C++

/*
* Copyright (c) Contributors to the Open 3D Engine Project.
* For complete copyright and license terms please see the LICENSE at the root of this distribution.
*
* SPDX-License-Identifier: Apache-2.0 OR MIT
*
*/
#pragma once
#if !defined(Q_MOC_RUN)
#include <QAbstractTableModel>
#include <QSortFilterProxyModel>
#include <AzCore/EBus/EBus.h>
#include <AzCore/Serialization/SerializeContext.h>
#include <AzCore/Component/EntityId.h>
#include <AzCore/std/containers/set.h>
#include <AzCore/std/containers/vector.h>
#include <AzQtComponents/Buses/DragAndDrop.h>
#endif
namespace ComponentDataUtilities
{
// Given a list of selected components, use the provided model to get the components to add to any selected entities.
void AddComponentsToSelectedEntities(const QModelIndexList& selectedComponents, QAbstractItemModel* model);
}
class CViewport;
//! ComponentDataModel
//! Holds the data required to display components in a table, this includes component name, categories, icons.
class ComponentDataModel
: public QAbstractTableModel
, protected AzQtComponents::DragAndDropEventsBus::Handler // its okay if more than one of these is installed, the first one gets it.
{
Q_OBJECT
public:
AZ_CLASS_ALLOCATOR(ComponentDataModel, AZ::SystemAllocator, 0);
using ComponentClassList = AZStd::vector<const AZ::SerializeContext::ClassData*>;
using ComponentCategorySet = AZStd::set<AZStd::string>;
using ComponentClassMap = AZStd::unordered_map<AZStd::string, AZStd::vector<const AZ::SerializeContext::ClassData*>>;
using ComponentIconMap = AZStd::unordered_map<AZ::Uuid, QIcon>;
enum ColumnIndex
{
Icon,
Category,
Name,
Count
};
enum CustomRoles
{
ClassDataRole = Qt::UserRole + 1
};
ComponentDataModel(QObject* parent = nullptr);
~ComponentDataModel() override;
QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const override;
QModelIndex parent(const QModelIndex &child) const override;
int rowCount(const QModelIndex &parent = QModelIndex()) const override;
int columnCount(const QModelIndex &parent = QModelIndex()) const override;
QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
Qt::ItemFlags flags(const QModelIndex &index) const override;
QMimeData* mimeData(const QModelIndexList& indexes) const override;
const AZ::SerializeContext::ClassData* GetClassData(const QModelIndex&) const;
AZ::EntityId NewEntityFromSelection(const QModelIndexList& selection);
static const char* GetCategory(const AZ::SerializeContext::ClassData* classData);
ComponentClassList& GetComponents() { return m_componentList; }
ComponentCategorySet& GetCategories() { return m_categories; }
protected:
//////////////////////////////////////////////////////////////////////////
// AzQtComponents::DragAndDropEventsBus::Handler
//////////////////////////////////////////////////////////////////////////
void DragEnter(QDragEnterEvent* event, AzQtComponents::DragAndDropContextBase& context) override;
void DragMove(QDragMoveEvent* event, AzQtComponents::DragAndDropContextBase& context) override;
void DragLeave(QDragLeaveEvent* event) override;
void Drop(QDropEvent* event, AzQtComponents::DragAndDropContextBase& context) override;
bool CanAcceptDragAndDropEvent(QDropEvent* event, AzQtComponents::DragAndDropContextBase& context) const;
ComponentClassList m_componentList;
ComponentClassMap m_componentMap;
ComponentIconMap m_componentIcons;
ComponentCategorySet m_categories;
};
//! ComponentDataProxyModel
//! FilterProxy for the ComponentDataModel is used along with the search criteria to filter the
//! list of components based on tags and/or selected category.
class ComponentDataProxyModel : public QSortFilterProxyModel
{
Q_OBJECT
public:
AZ_CLASS_ALLOCATOR(ComponentDataProxyModel, AZ::SystemAllocator, 0);
ComponentDataProxyModel(QObject* parent = nullptr)
: QSortFilterProxyModel(parent)
{}
// Creates a new entity and adds the selected components to it.
// It is specialized here to ensure it uses the correct indices according to the sorted data.
AZ::EntityId NewEntityFromSelection(const QModelIndexList& selection);
// Filters rows according to the specifed tags and/or selected category
bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const override;
// Set the category to filter by.
void SetSelectedCategory(const AZStd::string& category);
void ClearSelectedCategory();
protected:
AZStd::string m_selectedCategory;
};