188 lines
6.4 KiB
Ucode
188 lines
6.4 KiB
Ucode
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/**
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* Serves as the interface between a UIScene and scene owners. Provides scenes with all
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* data necessary for operation and routes rendering to the scenes.
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*
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* Copyright 1998-2013 Epic Games, Inc. All Rights Reserved.
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*/
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class UISceneClient extends UIRoot
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native(UserInterface)
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abstract
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inherits(FExec)
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transient;
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/** the viewport to use for rendering scenes */
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var const transient native pointer RenderViewport{FViewport};
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/**
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* the location of the mouse
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*
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* @fixme splitscreen
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*/
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var const transient IntPoint MousePosition;
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/**
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* Manager all persistent global data stores. Set by the object that creates the scene client.
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*/
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var const transient DataStoreClient DataStoreManager;
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/**
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* Stores the 3D projection matrix being used to render the UI.
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*/
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var const transient matrix CanvasToScreen;
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var const transient matrix InvCanvasToScreen;
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/** Post process chain to be applied when rendering UI Scenes */
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var transient PostProcessChain UIScenePostProcess;
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/** if TRUE then post processing is enabled using the UIScenePostProcess */
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var transient bool bEnablePostProcess;
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/**
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* Used to limit which scenes should be considered when determining whether the UI should be considered "active"
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* Represented in C++ as enums values.
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*/
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const SCENEFILTER_None =0x00000000;
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/** Include the transient scene */
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const SCENEFILTER_IncludeTransient =0x00000001;
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/** Consider only scenes which can process input */
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const SCENEFILTER_InputProcessorOnly =0x00000002;
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/** Consider only scenes which require the game to be paused */
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const SCENEFILTER_PausersOnly =0x00000004;
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/** Consider only scenes which support 3D primitives rendering */
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const SCENEFILTER_PrimitiveUsersOnly =0x00000008;
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/** Only consider scenes which render full-screen */
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const SCENEFILTER_UsesPostProcessing =0x00000010;
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/** Include only those scenes which can receive focus (i.e. bNeverFocus=false) */
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const SCENEFILTER_ReceivesFocus =0x00000020;
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/** Any scene */
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const SCENEFILTER_Any =0xFFFFFFFF;
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`define DECLARE_SCENEFILTER_TYPE(type) `{type}=UCONST_`{type},
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cpptext
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{
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/**
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* Used to limit which scenes should be considered when determining whether the UI should be considered "active"
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*/
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enum ESceneFilterTypes
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{
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`DECLARE_SCENEFILTER_TYPE(SCENEFILTER_None)
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/** Include the transient scene */
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`DECLARE_SCENEFILTER_TYPE(SCENEFILTER_IncludeTransient)
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/** Consider only scenes which can process input */
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`DECLARE_SCENEFILTER_TYPE(SCENEFILTER_InputProcessorOnly)
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/** Consider only scenes which require the game to be paused */
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`DECLARE_SCENEFILTER_TYPE(SCENEFILTER_PausersOnly)
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/** Consider only scenes which support 3D primitives rendering */
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`DECLARE_SCENEFILTER_TYPE(SCENEFILTER_PrimitiveUsersOnly)
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/** Only consider scenes which render full-screen */
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`DECLARE_SCENEFILTER_TYPE(SCENEFILTER_UsesPostProcessing)
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/** Include only those scenes which can receive focus (i.e. bNeverFocus=false) */
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`DECLARE_SCENEFILTER_TYPE(SCENEFILTER_ReceivesFocus)
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/** Include ANY scene, regardless of feature set */
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`DECLARE_SCENEFILTER_TYPE(SCENEFILTER_Any)
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};
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/* =======================================
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FExec interface
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======================================= */
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virtual UBOOL Exec(const TCHAR* Cmd,FOutputDevice& Ar);
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/* =======================================
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UUISceneClient interface
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======================================= */
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/**
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* Performs any initialization for the UISceneClient.
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*/
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virtual void InitializeClient( );
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/**
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* Assigns the viewport that scenes will use for rendering.
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*
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* @param inViewport the viewport to use for rendering scenes
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*/
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virtual void SetRenderViewport( FViewport* SceneViewport );
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/**
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* Provides the scene client with a way to apply a platform input type other than the actual input type being used.
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* Primarily for simulating platforms in the editor.
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*
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* @param OwningPlayer the player to use for determining the real platform input type, if necessary.
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* @param SimulatedPlatform receives the value of the platform that should be used.
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*
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* @return TRUE if the scene client wants to override the current platform input type.
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*/
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virtual UBOOL GetSimulatedPlatformInputType( BYTE& SimulatedPlatform ) const { return FALSE; }
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/**
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* Returns true if there is an unhidden fullscreen UI active
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*
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* @param Flags modifies the logic which determines whether the UI is active
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*
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* @return TRUE if the UI is currently active
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*/
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virtual UBOOL IsUIActive( DWORD Flags=SCENEFILTER_Any ) const PURE_VIRTUAL(UUISceneClient::IsUIActive,return FALSE;);
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/**
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* Returns true if the UI scenes should be rendered with post process
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*
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* @return TRUE if post process is enabled for any of the UI scenes
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*/
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virtual UBOOL UsesPostProcess() const;
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}
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/**
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* Returns true if there is an unhidden fullscreen UI active
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*
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* @param Flags a bitmask of values which alter the result of this method; the bits are derived from the ESceneFilterTypes
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* enum (which is native-only); script callers must pass these values literally
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*
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* @return TRUE if the UI is currently active
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*/
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native final noexportheader function bool IsUIActive( optional int Flags=SCENEFILTER_Any ) const;
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/**
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* Loads the skin package containing the skin with the specified tag, and sets that skin as the currently active skin.
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* @todo
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*/
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//native final function SetActiveSkin( Name SkinTag );
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/**
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* Returns the current canvas to screen projection matrix.
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*
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* @param Widget if specified, the returned matrix will include the widget's tranformation matrix as well.
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*
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* @return a matrix which can be used to project 2D pixel coordines into 3D screen coordinates. ??
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*/
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native final function matrix GetCanvasToScreen() const;
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/**
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* Returns the inverse of the local to world screen projection matrix.
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*
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* @param Widget if specified, the returned matrix will include the widget's tranformation matrix as well.
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*
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* @return a matrix which can be used to transform normalized device coordinates (i.e. origin at center of screen) into
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* into 0,0 based pixel coordinates. ??
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*/
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native final function matrix GetInverseCanvasToScreen() const;
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/**
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* Called when the scene client is first initialized.
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*/
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event InitializeSceneClient();
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DefaultProperties
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{
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// enable post processing of UI by default
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bEnablePostProcess=True
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}
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