UE4 Editor Plugin UI - 模态对话框

开发UE4 Editor插件的时候往往需要一些交互式界面，对话框必不可少。

Slate Dialog

SH3DOptionsWindow 继承自SCompoundWidget实现了对话框中的UI内容。具体可参考源码：Engine\Plugins\Enterprise\DatasmithImporter\Source\DatasmithImporter\Private\UI\DatasmithImportOptionsWindow.cpp

#include "Interfaces/IMainFrameModule.h"
#include "UI/SH3DOptionsWindow.h"
//测试模态窗口
TSharedPtr<SWindow> ParentWindow;
if (FModuleManager::Get().IsModuleLoaded("MainFrame"))
{
    IMainFrameModule& MainFrame = FModuleManager::LoadModuleChecked<IMainFrameModule>("MainFrame");
    ParentWindow = MainFrame.GetParentWindow();
}

TSharedRef<SWindow> Window = SNew(SWindow)
    .Title(LOCTEXT("H3DImportSettingsTitle", "H3D Import Options"))
    .SizingRule(ESizingRule::Autosized);


TSharedPtr<SH3DOptionsWindow> H3DOptionsWindow;
Window->SetContent
(
    SAssignNew(H3DOptionsWindow, SH3DOptionsWindow)
    	.WidgetWindow(Window)
);

FSlateApplication::Get().AddModalWindow(Window, ParentWindow, false);

参考

1. UE4 Slate初探
2. UE4 Dialog