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ezEngine
Release 25.03
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ezEngine
Release 25.03
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Protected Member Functions | |
| virtual float | CanHandle (const ezDragDropInfo *pInfo) const override |
| Used to ask a handler whether it knows how to handle a certain drag & drop situation. More... | |
| virtual void | OnDragBegin (const ezDragDropInfo *pInfo) override |
| Called shortly after CanHandle returned true to begin handling a drag operation. | |
| virtual void | OnDragUpdate (const ezDragDropInfo *pInfo) override |
| Called to update the drag operation with the latest state. | |
 Protected Member Functions inherited from ezComponentDragDropHandler | |
| void | CreateDropObject (const ezVec3 &vPosition, const char *szType, const char *szProperty, const ezVariant &value, ezUuid parent, ezInt32 iInsertChildIndex) |
| void | AttachComponentToObject (const char *szType, const char *szProperty, const ezVariant &value, ezUuid ObjectGuid) |
| void | MoveObjectToPosition (const ezUuid &guid, const ezVec3 &vPosition, const ezQuat &qRotation) |
| void | MoveDraggedObjectsToPosition (ezVec3 vPosition, bool bAllowSnap, const ezVec3 &normal) |
| void | SelectCreatedObjects () |
| void | BeginTemporaryCommands () |
| void | EndTemporaryCommands () |
| void | CancelTemporaryCommands () |
| virtual void | OnDragCancel () override |
| Called when the drag operation leaves the designated area. The handler will be destroyed after this. It should clean up all temporary objects that it created before. | |
| virtual void | OnDrop (const ezDragDropInfo *pInfo) override |
| Final call to finish the drag & drop operation. Handler is destroyed after this. | |
| Protected Member Functions inherited from ezAssetDragDropHandler | |
| bool | IsAssetType (const ezDragDropInfo *pInfo) const |
| ezString | GetAssetGuidString (const ezDragDropInfo *pInfo) const |
| ezUuid | GetAssetGuid (const ezDragDropInfo *pInfo) const |
| ezString | GetAssetsDocumentTypeName (const ezUuid &assetTypeGuid) const |
| bool | IsSpecificAssetType (const ezDragDropInfo *pInfo, const char *szType) const |
| Protected Member Functions inherited from ezDragDropHandler | |
| virtual void | RequestConfiguration (ezDragDropConfig *pConfigToFillOut) |
| Potentially called by the drag drop target to request information about how to determine the ezDragDropInfo data. | |
Additional Inherited Members | |
| Public Member Functions inherited from ezReflectedClass | |
| virtual const ezRTTI * | GetDynamicRTTI () const |
| bool | IsInstanceOf (const ezRTTI *pType) const |
| Returns whether the type of this instance is of the given type or derived from it. | |
| template<typename T > | |
| EZ_ALWAYS_INLINE bool | IsInstanceOf () const |
| Returns whether the type of this instance is of the given type or derived from it. | |
| Static Public Member Functions inherited from ezDragDropHandler | |
| static bool | IsHandlerActive () |
| Returns whether the last call to BeginDragDropOperation() was successful and a handler is now in effect. | |
| static bool | BeginDragDropOperation (const ezDragDropInfo *pInfo, ezDragDropConfig *pConfigToFillOut=nullptr) |
| Call this when a drag enter event occurs. Return value indicates whether a ezDragDropHandler was found to handle the operation. If not, subsequent drag & drop updates are ignored. | |
| static void | UpdateDragDropOperation (const ezDragDropInfo *pInfo) |
| Call this when a drag event occurs. Ignored if BeginDragDropOperation() was not successful. | |
| static void | FinishDragDrop (const ezDragDropInfo *pInfo) |
| Call this when a drop event occurs. Ignored if BeginDragDropOperation() was not successful. | |
| static void | CancelDragDrop () |
| Call this when a drag leave event occurs. Ignored if BeginDragDropOperation() was not successful. | |
| static bool | CanDropOnly (const ezDragDropInfo *pInfo) |
| For targets that do not support full dragging, but only dropping on a single target, this allows to query whether there is a handler for the given target. See also DropOnly(). | |
| static bool | DropOnly (const ezDragDropInfo *pInfo) |
| Executes a complete drop action on a target that does not support continuous dragging. See also CanDropOnly(). | |
| Static Public Member Functions inherited from ezNoBase | |
| static const ezRTTI * | GetStaticRTTI () |
| Protected Attributes inherited from ezComponentDragDropHandler | |
| ezDocument * | m_pDocument |
| ezHybridArray< ezUuid, 16 > | m_DraggedObjects |
| ezVec3 | m_vAlignAxisWithNormal = ezVec3::MakeZero() |
| bool | m_bSelectionAsRuntimeOverride = true |
| Protected Attributes inherited from ezAssetDragDropHandler | |
| ezDocument * | m_pDocument |
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overrideprotectedvirtual |
Used to ask a handler whether it knows how to handle a certain drag & drop situation.
The return value is a priority. By default CanHandle should return 0 or 1. To override an existing handler, values larger than 1 may be returned to take precedence.
Reimplemented from ezComponentDragDropHandler.
1.8.17