public void Initialise(MHParseNode arg, MHEngine engine) { if (arg.GetTagNo() == ASN1Codes.C_INDIRECTREFERENCE) { // Indirect reference. m_fIsDirect = false; m_Indirect.Initialise(arg.GetArgN(0), engine); } else if (arg.GetTagNo() == ASN1Codes.C_CONTENT_REFERENCE) { // Simple integer value. m_fIsDirect = true; m_Direct.Initialise(arg.GetArgN(0), engine); } else { throw new MHEGException("Expected direct or indirect content reference"); } }
public override void Initialise(MHParseNode p, MHEngine engine) { base.Initialise(p, engine); MHParseNode pMultiplex = p.GetNamedArg(ASN1Codes.C_MULTIPLEX); for (int i = 0; i < pMultiplex.GetArgCount(); i++) { MHParseNode pItem = pMultiplex.GetArgN(i); if (pItem.GetTagNo() == ASN1Codes.C_AUDIO) { MHAudio pAudio = new MHAudio(); m_Multiplex.Append(pAudio); pAudio.Initialise(pItem, engine); } else if (pItem.GetTagNo() == ASN1Codes.C_VIDEO) { MHVideo pVideo = new MHVideo(); m_Multiplex.Append(pVideo); pVideo.Initialise(pItem, engine); } else if (pItem.GetTagNo() == ASN1Codes.C_RTGRAPHICS) { MHRTGraphics pRtGraph = new MHRTGraphics(); m_Multiplex.Append(pRtGraph); pRtGraph.Initialise(pItem, engine); } // Ignore unknown items } MHParseNode pStorage = p.GetNamedArg(ASN1Codes.C_STORAGE); if (pStorage != null) { m_nStorage = pStorage.GetArgN(0).GetEnumValue(); } MHParseNode pLooping = p.GetNamedArg(ASN1Codes.C_LOOPING); if (pLooping != null) { m_nLooping = pLooping.GetArgN(0).GetIntValue(); } }
public void Initialise(MHParseNode arg, MHEngine engine) { if (arg.NodeType == MHParseNode.PNTagged && arg.GetTagNo() == ASN1Codes.C_INDIRECTREFERENCE) { // Indirect reference. m_fIsDirect = false; m_Indirect.Initialise(arg.GetArgN(0), engine); } else { // Simple integer value. m_fIsDirect = true; m_ObjRef.Initialise(arg, engine); } }
public override void Initialise(MHParseNode p, MHEngine engine) { base.Initialise(p, engine); // Target MHParseNode pContent = p.GetArgN(1); if (pContent.NodeType == MHParseNode.PNSeq) { // Referenced content. m_fIsIncluded = false; m_fSizePresent = m_fCCPriorityPresent = false; m_Referenced.Initialise(pContent.GetSeqN(0), engine); if (pContent.GetSeqCount() > 1) { MHParseNode pArg = pContent.GetSeqN(1); if (pArg.NodeType == MHParseNode.PNTagged && pArg.GetTagNo() == ASN1Codes.C_NEW_CONTENT_SIZE) { MHParseNode pVal = pArg.GetArgN(0); // It may be NULL as a place-holder if (pVal.NodeType == MHParseNode.PNInt) { m_fSizePresent = true; m_ContentSize.Initialise(pVal, engine); } } } if (pContent.GetSeqCount() > 2) { MHParseNode pArg = pContent.GetSeqN(2); if (pArg.NodeType == MHParseNode.PNTagged && pArg.GetTagNo() == ASN1Codes.C_NEW_CONTENT_CACHE_PRIO) { MHParseNode pVal = pArg.GetArgN(0); if (pVal.NodeType == MHParseNode.PNInt) { m_fCCPriorityPresent = true; m_CCPriority.Initialise(pVal, engine); } } } } else { m_Included.Initialise(pContent, engine); m_fIsIncluded = true; } }
public void Initialise(MHParseNode p, MHEngine engine) { switch (p.GetTagNo()) { case ASN1Codes.C_NEW_GENERIC_BOOLEAN: m_Type = P_Bool; m_BoolVal.Initialise(p.GetArgN(0), engine); break; case ASN1Codes.C_NEW_GENERIC_INTEGER: m_Type = P_Int; m_IntVal.Initialise(p.GetArgN(0), engine); break; case ASN1Codes.C_NEW_GENERIC_OCTETSTRING: m_Type = P_String; m_StrVal.Initialise(p.GetArgN(0), engine); break; case ASN1Codes.C_NEW_GENERIC_OBJECT_REF: m_Type = P_ObjRef; m_ObjRefVal.Initialise(p.GetArgN(0), engine); break; case ASN1Codes.C_NEW_GENERIC_CONTENT_REF: m_Type = P_ContentRef; m_ContentRefVal.Initialise(p.GetArgN(0), engine); break; default: p.Failure("Expected generic"); break; } }
protected MHGroup ParseProgram(byte[] text) { if (text.Length == 0) { return(null); } IMHParser parser = null; MHParseNode pTree = null; MHGroup pRes = null; // Look at the first byte to decide whether this is text or binary. Binary // files will begin with 0xA0 or 0xA1, text files with white space, comment ('/') // or curly bracket. // This is only there for testing: all downloaded objects will be in ASN1 byte ch = text[0]; if (ch >= 128) { parser = new MHParseBinary(text); } else { parser = new MHParseText(text); } // Parse the binary or text. pTree = parser.Parse(); switch (pTree.GetTagNo()) { // The parse node should be a tagged item. case ASN1Codes.C_APPLICATION: pRes = new MHApplication(); break; case ASN1Codes.C_SCENE: pRes = new MHScene(); break; default: pTree.Failure("Expected Application or Scene"); break; // throws exception. } pRes.Initialise(pTree, this); // Convert the parse tree. return(pRes); }
// Set this up from the parse tree. public override void Initialise(MHParseNode p, MHEngine engine) { // Set to empty before we start (just in case). engine.GetGroupId().Copy(""); base.Initialise(p, engine); // Must be an external reference with an object number of zero. Logging.Assert(m_ObjectIdentifier.ObjectNo == 0 && m_ObjectIdentifier.GroupId.Size != 0); // Set the group id for the rest of the group to this. engine.GetGroupId().Copy(m_ObjectIdentifier.GroupId); // Some of the information is irrelevant. // MHParseNode pStdId = p.GetNamedArg(C_STANDARD_IDENTIFIER); // MHParseNode pStdVersion = p.GetNamedArg(C_STANDARD_VERSION); // MHParseNode pObjectInfo = p.GetNamedArg(C_OBJECT_INFORMATION); MHParseNode pOnStartUp = p.GetNamedArg(ASN1Codes.C_ON_START_UP); if (pOnStartUp != null) { m_StartUp.Initialise(pOnStartUp, engine); } MHParseNode pOnCloseDown = p.GetNamedArg(ASN1Codes.C_ON_CLOSE_DOWN); if (pOnCloseDown != null) { m_CloseDown.Initialise(pOnCloseDown, engine); } MHParseNode pOriginalGCPrio = p.GetNamedArg(ASN1Codes.C_ORIGINAL_GC_PRIORITY); if (pOriginalGCPrio != null) { m_nOrigGroupCachePriority = pOriginalGCPrio.GetArgN(0).GetIntValue(); } // Ignore the other stuff at the moment. MHParseNode pItems = p.GetNamedArg(ASN1Codes.C_ITEMS); if (pItems == null) { p.Failure("Missing :Items block"); } for (int i = 0; i < pItems.GetArgCount(); i++) { MHParseNode pItem = pItems.GetArgN(i); MHIngredient pIngredient = null; // Generate the particular kind of ingredient. switch (pItem.GetTagNo()) { case ASN1Codes.C_RESIDENT_PROGRAM: pIngredient = new MHResidentProgram(); break; // NOT UK case ASN1Codes.C_REMOTE_PROGRAM: pIngredient = new MHRemoteProgram(); break; // NOT UK case ASN1Codes.C_INTERCHANGED_PROGRAM: pIngredient = new MHInterChgProgram(); break; // NOT UK case ASN1Codes.C_PALETTE: pIngredient = new MHPalette(); break; // NOT UK case ASN1Codes.C_FONT: pIngredient = new MHFont(); break; // NOT UK case ASN1Codes.C_CURSOR_SHAPE: pIngredient = new MHCursorShape(); break; case ASN1Codes.C_BOOLEAN_VARIABLE: pIngredient = new MHBooleanVar(); break; case ASN1Codes.C_INTEGER_VARIABLE: pIngredient = new MHIntegerVar(); break; case ASN1Codes.C_OCTET_STRING_VARIABLE: pIngredient = new MHOctetStrVar(); break; case ASN1Codes.C_OBJECT_REF_VARIABLE: pIngredient = new MHObjectRefVar(); break; case ASN1Codes.C_CONTENT_REF_VARIABLE: pIngredient = new MHContentRefVar(); break; case ASN1Codes.C_LINK: pIngredient = new MHLink(); break; case ASN1Codes.C_STREAM: pIngredient = new MHStream(); break; case ASN1Codes.C_BITMAP: pIngredient = new MHBitmap(); break; case ASN1Codes.C_LINE_ART: pIngredient = new MHLineArt(); break; case ASN1Codes.C_DYNAMIC_LINE_ART: pIngredient = new MHDynamicLineArt(); break; case ASN1Codes.C_RECTANGLE: pIngredient = new MHRectangle(); break; // NOT UK case ASN1Codes.C_HOTSPOT: pIngredient = new MHHotSpot(); break; // NOT UK case ASN1Codes.C_SWITCH_BUTTON: pIngredient = new MHSwitchButton(); break; // NOT UK case ASN1Codes.C_PUSH_BUTTON: pIngredient = new MHPushButton(); break; case ASN1Codes.C_TEXT: pIngredient = new MHText(); break; case ASN1Codes.C_ENTRY_FIELD: pIngredient = new MHEntryField(); break; case ASN1Codes.C_HYPER_TEXT: pIngredient = new MHHyperText(); break; case ASN1Codes.C_SLIDER: pIngredient = new MHSlider(); break; case ASN1Codes.C_TOKEN_GROUP: pIngredient = new MHTokenGroup(); break; case ASN1Codes.C_LIST_GROUP: pIngredient = new MHListGroup(); break; default: // So we find out about these when debugging. Logging.Log(Logging.MHLogError, "'" + pItem.GetTagNo() + "' tag not in switch"); Logging.Assert(false); // Future proofing: ignore any ingredients that we don't know about. // Obviously these can only arise in the binary coding. break; } if (pIngredient != null) { // Initialise it from its argments. pIngredient.Initialise(pItem, engine); // Remember the highest numbered ingredient if (pIngredient.ObjectIdentifier.ObjectNo > m_nLastId) { m_nLastId = pIngredient.ObjectIdentifier.ObjectNo; } // Add it to the ingedients of this group. m_Items.Append(pIngredient); } } }
public void Initialise(MHParseNode p, MHEngine engine) { // Depending on the caller we may have a tagged argument list or a sequence. for (int i = 0; i < p.GetArgCount(); i++) { MHParseNode pElemAction = p.GetArgN(i); MHElemAction pAction = null; switch (pElemAction.GetTagNo()) { case ASN1Codes.C_ACTIVATE: pAction = new MHActivate(":Activate", true); break; case ASN1Codes.C_ADD: pAction = new MHAdd(); break; case ASN1Codes.C_ADD_ITEM: pAction = new MHAddItem(); break; case ASN1Codes.C_APPEND: pAction = new MHAppend(); break; case ASN1Codes.C_BRING_TO_FRONT: pAction = new MHBringToFront(); break; case ASN1Codes.C_CALL: pAction = new MHCall(":Call", false); break; case ASN1Codes.C_CALL_ACTION_SLOT: pAction = new MHCallActionSlot(); break; case ASN1Codes.C_CLEAR: pAction = new MHClear(); break; case ASN1Codes.C_CLONE: pAction = new MHClone(); break; case ASN1Codes.C_CLOSE_CONNECTION: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // ?? case ASN1Codes.C_DEACTIVATE: pAction = new MHActivate(":Deactivate", false); break; case ASN1Codes.C_DEL_ITEM: pAction = new MHDelItem(); break; case ASN1Codes.C_DESELECT: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // Button case ASN1Codes.C_DESELECT_ITEM: pAction = new MHDeselectItem(); break; case ASN1Codes.C_DIVIDE: pAction = new MHDivide(); break; case ASN1Codes.C_DRAW_ARC: pAction = new MHDrawArcSector(":DrawArc", false); break; case ASN1Codes.C_DRAW_LINE: pAction = new MHDrawLine(); break; case ASN1Codes.C_DRAW_OVAL: pAction = new MHDrawOval(); break; case ASN1Codes.C_DRAW_POLYGON: pAction = new MHDrawPoly(":DrawPolygon", true); break; case ASN1Codes.C_DRAW_POLYLINE: pAction = new MHDrawPoly(":DrawPolyline", false); break; case ASN1Codes.C_DRAW_RECTANGLE: pAction = new MHDrawRectangle(); break; case ASN1Codes.C_DRAW_SECTOR: pAction = new MHDrawArcSector(":DrawSector", true); break; case ASN1Codes.C_FORK: pAction = new MHCall(":Fork", true); break; case ASN1Codes.C_GET_AVAILABILITY_STATUS: pAction = new MHGetAvailabilityStatus(); break; case ASN1Codes.C_GET_BOX_SIZE: pAction = new MHGetBoxSize(); break; case ASN1Codes.C_GET_CELL_ITEM: pAction = new MHGetCellItem(); break; case ASN1Codes.C_GET_CURSOR_POSITION: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // ? case ASN1Codes.C_GET_ENGINE_SUPPORT: pAction = new MHGetEngineSupport(); break; case ASN1Codes.C_GET_ENTRY_POINT: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // EntryField case ASN1Codes.C_GET_FILL_COLOUR: pAction = new MHGetFillColour(); break; case ASN1Codes.C_GET_FIRST_ITEM: pAction = new MHGetFirstItem(); break; case ASN1Codes.C_GET_HIGHLIGHT_STATUS: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // ? case ASN1Codes.C_GET_INTERACTION_STATUS: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // ? case ASN1Codes.C_GET_ITEM_STATUS: pAction = new MHGetItemStatus(); break; case ASN1Codes.C_GET_LABEL: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // PushButton case ASN1Codes.C_GET_LAST_ANCHOR_FIRED: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // HyperText case ASN1Codes.C_GET_LINE_COLOUR: pAction = new MHGetLineColour(); break; case ASN1Codes.C_GET_LINE_STYLE: pAction = new MHGetLineStyle(); break; case ASN1Codes.C_GET_LINE_WIDTH: pAction = new MHGetLineWidth(); break; case ASN1Codes.C_GET_LIST_ITEM: pAction = new MHGetListItem(); break; case ASN1Codes.C_GET_LIST_SIZE: pAction = new MHGetListSize(); break; case ASN1Codes.C_GET_OVERWRITE_MODE: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // ? case ASN1Codes.C_GET_PORTION: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // Slider case ASN1Codes.C_GET_POSITION: pAction = new MHGetPosition(); break; case ASN1Codes.C_GET_RUNNING_STATUS: pAction = new MHGetRunningStatus(); break; case ASN1Codes.C_GET_SELECTION_STATUS: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // ? case ASN1Codes.C_GET_SLIDER_VALUE: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // Slider case ASN1Codes.C_GET_TEXT_CONTENT: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // Text case ASN1Codes.C_GET_TEXT_DATA: pAction = new MHGetTextData(); break; case ASN1Codes.C_GET_TOKEN_POSITION: pAction = new MHGetTokenPosition(); break; case ASN1Codes.C_GET_VOLUME: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // ? case ASN1Codes.C_LAUNCH: pAction = new MHLaunch(); break; case ASN1Codes.C_LOCK_SCREEN: pAction = new MHLockScreen(); break; case ASN1Codes.C_MODULO: pAction = new MHModulo(); break; case ASN1Codes.C_MOVE: pAction = new MHMove(); break; case ASN1Codes.C_MOVE_TO: pAction = new MHMoveTo(); break; case ASN1Codes.C_MULTIPLY: pAction = new MHMultiply(); break; case ASN1Codes.C_OPEN_CONNECTION: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // ? case ASN1Codes.C_PRELOAD: pAction = new MHPreload(); break; case ASN1Codes.C_PUT_BEFORE: pAction = new MHPutBefore(); break; case ASN1Codes.C_PUT_BEHIND: pAction = new MHPutBehind(); break; case ASN1Codes.C_QUIT: pAction = new MHQuit(); break; case ASN1Codes.C_READ_PERSISTENT: pAction = new MHPersistent(":ReadPersistent", true); break; case ASN1Codes.C_RUN: pAction = new MHRun(); break; case ASN1Codes.C_SCALE_BITMAP: pAction = new MHScaleBitmap(); break; case ASN1Codes.C_SCALE_VIDEO: pAction = new MHScaleVideo(); break; case ASN1Codes.C_SCROLL_ITEMS: pAction = new MHScrollItems(); break; case ASN1Codes.C_SELECT: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // Button case ASN1Codes.C_SELECT_ITEM: pAction = new MHSelectItem(); break; case ASN1Codes.C_SEND_EVENT: pAction = new MHSendEvent(); break; case ASN1Codes.C_SEND_TO_BACK: pAction = new MHSendToBack(); break; case ASN1Codes.C_SET_BOX_SIZE: pAction = new MHSetBoxSize(); break; case ASN1Codes.C_SET_CACHE_PRIORITY: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // ? case ASN1Codes.C_SET_COUNTER_END_POSITION: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // Stream case ASN1Codes.C_SET_COUNTER_POSITION: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // Stream case ASN1Codes.C_SET_COUNTER_TRIGGER: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // Stream case ASN1Codes.C_SET_CURSOR_POSITION: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // ? case ASN1Codes.C_SET_CURSOR_SHAPE: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // ? case ASN1Codes.C_SET_DATA: pAction = new MHSetData(); break; case ASN1Codes.C_SET_ENTRY_POINT: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // EntryField case ASN1Codes.C_SET_FILL_COLOUR: pAction = new MHSetFillColour(); break; case ASN1Codes.C_SET_FIRST_ITEM: pAction = new MHSetFirstItem(); break; case ASN1Codes.C_SET_FONT_REF: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // Text case ASN1Codes.C_SET_HIGHLIGHT_STATUS: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // ? case ASN1Codes.C_SET_INTERACTION_STATUS: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // ? case ASN1Codes.C_SET_LABEL: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // PushButton case ASN1Codes.C_SET_LINE_COLOUR: pAction = new MHSetLineColour(); break; case ASN1Codes.C_SET_LINE_STYLE: pAction = new MHSetLineStyle(); break; case ASN1Codes.C_SET_LINE_WIDTH: pAction = new MHSetLineWidth(); break; case ASN1Codes.C_SET_OVERWRITE_MODE: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // EntryField case ASN1Codes.C_SET_PALETTE_REF: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // Visible case ASN1Codes.C_SET_PORTION: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // Slider case ASN1Codes.C_SET_POSITION: pAction = new MHSetPosition(); break; case ASN1Codes.C_SET_SLIDER_VALUE: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // Slider case ASN1Codes.C_SET_SPEED: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // ? case ASN1Codes.C_SET_TIMER: pAction = new MHSetTimer(); break; case ASN1Codes.C_SET_TRANSPARENCY: pAction = new MHSetTransparency(); break; case ASN1Codes.C_SET_VARIABLE: pAction = new MHSetVariable(); break; case ASN1Codes.C_SET_VOLUME: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // ? case ASN1Codes.C_SPAWN: pAction = new MHSpawn(); break; case ASN1Codes.C_STEP: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // Slider case ASN1Codes.C_STOP: pAction = new MHStop(); break; case ASN1Codes.C_STORE_PERSISTENT: pAction = new MHPersistent(":StorePersistent", false); break; case ASN1Codes.C_SUBTRACT: pAction = new MHSubtract(); break; case ASN1Codes.C_TEST_VARIABLE: pAction = new MHTestVariable(); break; case ASN1Codes.C_TOGGLE: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // Button case ASN1Codes.C_TOGGLE_ITEM: pAction = new MHToggleItem(); break; case ASN1Codes.C_TRANSITION_TO: pAction = new MHTransitionTo(); break; case ASN1Codes.C_UNLOAD: pAction = new MHUnload(); break; case ASN1Codes.C_UNLOCK_SCREEN: pAction = new MHUnlockScreen(); break; // UK MHEG added actions. case ASN1Codes.C_SET_BACKGROUND_COLOUR: pAction = new MHSetBackgroundColour(); break; case ASN1Codes.C_SET_CELL_POSITION: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // ? case ASN1Codes.C_SET_INPUT_REGISTER: pAction = new MHSetInputRegister(); break; case ASN1Codes.C_SET_TEXT_COLOUR: pAction = new MHSetTextColour(); break; case ASN1Codes.C_SET_FONT_ATTRIBUTES: pAction = new MHSetFontAttributes(); break; case ASN1Codes.C_SET_VIDEO_DECODE_OFFSET: pAction = new MHSetVideoDecodeOffset(); break; case ASN1Codes.C_GET_VIDEO_DECODE_OFFSET: pAction = new MHGetVideoDecodeOffset(); break; case ASN1Codes.C_GET_FOCUS_POSITION: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // HyperText case ASN1Codes.C_SET_FOCUS_POSITION: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // HyperText case ASN1Codes.C_SET_BITMAP_DECODE_OFFSET: pAction = new MHSetBitmapDecodeOffset(); break; case ASN1Codes.C_GET_BITMAP_DECODE_OFFSET: pAction = new MHGetBitmapDecodeOffset(); break; case ASN1Codes.C_SET_SLIDER_PARAMETERS: pAction = new MHTemporary(pElemAction.GetTagNo()); break; // ? default: Logging.Log(Logging.MHLogWarning, "Action " + pElemAction.GetTagNo() + " not implemented"); Logging.Assert(false); // So we find out about these when debugging. // Future proofing: ignore any actions that we don't know about. // Obviously these can only arise in the binary coding. pAction = null; break; } if (pAction != null) { Append(pAction); // Add to the sequence. pAction.Initialise(pElemAction, engine); } } }