101 lines
3.5 KiB
Markdown
101 lines
3.5 KiB
Markdown
|
# EditInline
|
|||
|
|
|
|||
|
|
- **功能描述：** 为对象属性创建一个实例，并作为子对象。
|
|||
|
|
|
|||
|
|
- **使用位置：** UPROPERTY
|
|||
|
|
|
|||
|
|
- **引擎模块：** DetailsPanel
|
|||
|
|
|
|||
|
|
- **元数据类型：** bool
|
|||
|
|
|
|||
|
|
- **关联项：** [NoEditInline](../NoEditInline.md), [AllowEditInlineCustomization](../AllowEditInlineCustomization/AllowEditInlineCustomization.md), [ForceInlineRow](../ForceInlineRow/ForceInlineRow.md)
|
|||
|
|
|
|||
|
|
UPROPERTY：[Instanced](../../../Specifier/UPROPERTY/Instance/Instanced/Instanced.md)
|
|||
|
|
|
|||
|
|
- **常用程度：** ★★★
|
|||
|
|
|
|||
|
|
为对象属性创建一个实例，并作为子对象。
|
|||
|
|
|
|||
|
|
也可以手动设置。如果UClass上有EditInlineNew，但是属性上没有Instanced，这个时候可以手动的设置EditInline然后通过自己手动赋值对象引用属性来使得这个对象可以直接编辑。
|
|||
|
|
|
|||
|
|
和ShowInnerProperties是否等价？EditInline在对象容器（Array,Map,Set）的情况下，也可以使用。但ShowInnerProperties只能在单个对象属性上生效。
|
|||
|
|
|
|||
|
|
可以设置在Struct上？看源码里也有该设置。但其实并没有效果。
|
|||
|
|
|
|||
|
|
## 示例代码：
|
|||
|
|
|
|||
|
|
```cpp
|
|||
|
|
UPROPERTY(EditAnywhere, BlueprintReadWrite)
|
|||
|
|
UMyProperty_EditInline_Sub* MyObject;
|
|||
|
|
UPROPERTY(EditAnywhere, BlueprintReadWrite, meta = (EditInline))
|
|||
|
|
UMyProperty_EditInline_Sub* MyObject_EditInline;
|
|||
|
|
UPROPERTY(EditAnywhere, BlueprintReadWrite, meta = (NoEditInline))
|
|||
|
|
UMyProperty_EditInline_Sub* MyObject_NoEditInline;
|
|||
|
|
|
|||
|
|
UPROPERTY(EditAnywhere, BlueprintReadWrite)
|
|||
|
|
TArray<UMyProperty_EditInline_Sub*> MyObjectArray;
|
|||
|
|
|
|||
|
|
UPROPERTY(EditAnywhere, BlueprintReadWrite, meta = (EditInline))
|
|||
|
|
TArray<UMyProperty_EditInline_Sub*> MyObjectArray_EditInline;
|
|||
|
|
|
|||
|
|
UPROPERTY(EditAnywhere, BlueprintReadWrite, meta = (NoEditInline))
|
|||
|
|
TArray<UMyProperty_EditInline_Sub*> MyObjectArray_NoEditInline;
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
## 蓝图效果：
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
## 原理：
|
|||
|
|
|
|||
|
|
会相应的设置EPropertyNodeFlags::EditInlineNew。
|
|||
|
|
|
|||
|
|
```cpp
|
|||
|
|
void FPropertyNode::InitNode(const FPropertyNodeInitParams& InitParams)
|
|||
|
|
{
|
|||
|
|
// we are EditInlineNew if this property has the flag, or if inside a container that has the flag.
|
|||
|
|
bIsEditInlineNew = GotReadAddresses && bIsObjectOrInterface && !MyProperty->HasMetaData(Name_NoEditInline) &&
|
|||
|
|
(MyProperty->HasMetaData(Name_EditInline) || (bIsInsideContainer && OwnerProperty->HasMetaData(Name_EditInline)));
|
|||
|
|
bShowInnerObjectProperties = bIsObjectOrInterface && MyProperty->HasMetaData(Name_ShowInnerProperties);
|
|||
|
|
|
|||
|
|
if (bIsEditInlineNew)
|
|||
|
|
{
|
|||
|
|
SetNodeFlags(EPropertyNodeFlags::EditInlineNew, true);
|
|||
|
|
}
|
|||
|
|
else if (bShowInnerObjectProperties)
|
|||
|
|
{
|
|||
|
|
SetNodeFlags(EPropertyNodeFlags::ShowInnerObjectProperties, true);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
bool SPropertyEditorEditInline::Supports( const FPropertyNode* InTreeNode, int32 InArrayIdx )
|
|||
|
|
{
|
|||
|
|
return InTreeNode
|
|||
|
|
&& InTreeNode->HasNodeFlags(EPropertyNodeFlags::EditInlineNew)
|
|||
|
|
&& InTreeNode->FindObjectItemParent()
|
|||
|
|
&& !InTreeNode->IsPropertyConst();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void FItemPropertyNode::InitExpansionFlags(void)
|
|||
|
|
{
|
|||
|
|
FProperty* MyProperty = GetProperty();
|
|||
|
|
|
|||
|
|
if (TSharedPtr<FPropertyNode>& ValueNode = GetOrCreateOptionalValueNode())
|
|||
|
|
{
|
|||
|
|
// This is a set optional, so check its SetValue instead.
|
|||
|
|
MyProperty = ValueNode->GetProperty();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
bool bExpandableType = CastField<FStructProperty>(MyProperty)
|
|||
|
|
|| (CastField<FArrayProperty>(MyProperty) || CastField<FSetProperty>(MyProperty) || CastField<FMapProperty>(MyProperty));
|
|||
|
|
|
|||
|
|
if (bExpandableType
|
|||
|
|
|| HasNodeFlags(EPropertyNodeFlags::EditInlineNew)
|
|||
|
|
|| HasNodeFlags(EPropertyNodeFlags::ShowInnerObjectProperties)
|
|||
|
|
|| (MyProperty->ArrayDim > 1 && ArrayIndex == -1))
|
|||
|
|
{
|
|||
|
|
SetNodeFlags(EPropertyNodeFlags::CanBeExpanded, true);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
```
|