MythTV: Actions.cpp Source File

00001 /* Actions.cpp
00002 
00003    Copyright (C)  David C. J. Matthews 2004, 2008  dm at prolingua.co.uk
00004 
00005    This program is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU General Public License
00007    as published by the Free Software Foundation; either version 2
00008    of the License, or (at your option) any later version.
00009 
00010    This program is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013    GNU General Public License for more details.
00014 
00015    You should have received a copy of the GNU General Public License
00016    along with this program; if not, write to the Free Software
00017    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00018    Or, point your browser to http://www.gnu.org/copyleft/gpl.html
00019 
00020 */
00021 
00022 #include <stdio.h>
00023 
00024 #include "BaseActions.h"
00025 #include "Actions.h"
00026 #include "BaseClasses.h"
00027 #include "ParseNode.h"
00028 #include "ASN1Codes.h"
00029 #include "Ingredients.h"
00030 #include "Engine.h"
00031 #include "Variables.h"
00032 #include "Programs.h"
00033 #include "Bitmap.h"
00034 #include "Visible.h"
00035 #include "Text.h"
00036 #include "DynamicLineArt.h"
00037 #include "Link.h"
00038 #include "TokenGroup.h"
00039 #include "Stream.h"
00040 #include "Logging.h"
00041 
00042 
00043 // Temporary place-holder for actions we haven't done yet.
00044 class MHUnimplementedAction: public MHElemAction
00045 {
00046   public:
00047     MHUnimplementedAction(int nTag): MHElemAction("")
00048     {
00049         m_nTag = nTag;
00050     }
00051     virtual void Initialise(MHParseNode *, MHEngine *) {}
00052     virtual void PrintMe(FILE *fd, int /*nTabs*/) const
00053     {
00054         fprintf(fd, "****Missing action %d\n", m_nTag);
00055     }
00056     virtual void Perform(MHEngine *)
00057     {
00058         MHERROR(QString("Unimplemented action %1").arg(m_nTag));
00059     }
00060   protected:
00061     int m_nTag;
00062 };
00063 
00064 // ActionSequence.
00065 
00066 // Process the action set and create the action values.
00067 void MHActionSequence::Initialise(MHParseNode *p, MHEngine *engine)
00068 {
00069     // Depending on the caller we may have a tagged argument list or a sequence.
00070     for (int i = 0; i < p->GetArgCount(); i++)
00071     {
00072         MHParseNode *pElemAction = p->GetArgN(i);
00073         MHElemAction *pAction;
00074 
00075         switch (pElemAction->GetTagNo())
00076         {
00077             case C_ACTIVATE:
00078                 pAction = new MHActivate(":Activate", true);
00079                 break;
00080             case C_ADD:
00081                 pAction = new MHAdd;
00082                 break;
00083             case C_ADD_ITEM:
00084                 pAction = new MHAddItem;
00085                 break;
00086             case C_APPEND:
00087                 pAction = new MHAppend;
00088                 break;
00089             case C_BRING_TO_FRONT:
00090                 pAction = new MHBringToFront;
00091                 break;
00092             case C_CALL:
00093                 pAction = new MHCall(":Call", false);
00094                 break;
00095             case C_CALL_ACTION_SLOT:
00096                 pAction = new MHCallActionSlot;
00097                 break;
00098             case C_CLEAR:
00099                 pAction = new MHClear;
00100                 break;
00101             case C_CLONE:
00102                 pAction = new MHClone;
00103                 break;
00104             case C_CLOSE_CONNECTION:
00105                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00106                 break; // ??
00107             case C_DEACTIVATE:
00108                 pAction = new MHActivate(":Deactivate", false);
00109                 break;
00110             case C_DEL_ITEM:
00111                 pAction = new MHDelItem;
00112                 break;
00113             case C_DESELECT:
00114                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00115                 break; // Button
00116             case C_DESELECT_ITEM:
00117                 pAction = new MHDeselectItem;
00118                 break;
00119             case C_DIVIDE:
00120                 pAction = new MHDivide;
00121                 break;
00122             case C_DRAW_ARC:
00123                 pAction = new MHDrawArcSector(":DrawArc", false);
00124                 break;
00125             case C_DRAW_LINE:
00126                 pAction = new MHDrawLine;
00127                 break;
00128             case C_DRAW_OVAL:
00129                 pAction = new MHDrawOval;
00130                 break;
00131             case C_DRAW_POLYGON:
00132                 pAction = new MHDrawPoly(":DrawPolygon", true);
00133                 break;
00134             case C_DRAW_POLYLINE:
00135                 pAction = new MHDrawPoly(":DrawPolyline", false);
00136                 break;
00137             case C_DRAW_RECTANGLE:
00138                 pAction = new MHDrawRectangle;
00139                 break;
00140             case C_DRAW_SECTOR:
00141                 pAction = new MHDrawArcSector(":DrawSector", true);
00142                 break;
00143             case C_FORK:
00144                 pAction = new MHCall(":Fork", true);
00145                 break;
00146             case C_GET_AVAILABILITY_STATUS:
00147                 pAction = new MHGetAvailabilityStatus;
00148                 break;
00149             case C_GET_BOX_SIZE:
00150                 pAction = new MHGetBoxSize;
00151                 break;
00152             case C_GET_CELL_ITEM:
00153                 pAction = new MHGetCellItem;
00154                 break;
00155             case C_GET_CURSOR_POSITION:
00156                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00157                 break; // ?
00158             case C_GET_ENGINE_SUPPORT:
00159                 pAction = new MHGetEngineSupport;
00160                 break;
00161             case C_GET_ENTRY_POINT:
00162                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00163                 break; // EntryField
00164             case C_GET_FILL_COLOUR:
00165                 pAction = new MHGetFillColour;
00166                 break;
00167             case C_GET_FIRST_ITEM:
00168                 pAction = new MHGetFirstItem;
00169                 break;
00170             case C_GET_HIGHLIGHT_STATUS:
00171                 pAction = new MHGetHighlightStatus;
00172                 break;
00173             case C_GET_INTERACTION_STATUS:
00174                 pAction = new MHGetInteractionStatus;
00175                 break;
00176             case C_GET_ITEM_STATUS:
00177                 pAction = new MHGetItemStatus;
00178                 break;
00179             case C_GET_LABEL:
00180                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00181                 break;// PushButton
00182             case C_GET_LAST_ANCHOR_FIRED:
00183                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00184                 break;// HyperText
00185             case C_GET_LINE_COLOUR:
00186                 pAction = new MHGetLineColour;
00187                 break;
00188             case C_GET_LINE_STYLE:
00189                 pAction = new MHGetLineStyle;
00190                 break;
00191             case C_GET_LINE_WIDTH:
00192                 pAction = new MHGetLineWidth;
00193                 break;
00194             case C_GET_LIST_ITEM:
00195                 pAction = new MHGetListItem;
00196                 break;
00197             case C_GET_LIST_SIZE:
00198                 pAction = new MHGetListSize;
00199                 break;
00200             case C_GET_OVERWRITE_MODE:
00201                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00202                 break;// ?
00203             case C_GET_PORTION:
00204                 pAction = new MHGetPortion;
00205                 break;
00206             case C_GET_POSITION:
00207                 pAction = new MHGetPosition;
00208                 break;
00209             case C_GET_RUNNING_STATUS:
00210                 pAction = new MHGetRunningStatus;
00211                 break;
00212             case C_GET_SELECTION_STATUS:
00213                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00214                 break;// ?
00215             case C_GET_SLIDER_VALUE:
00216                 pAction = new MHGetSliderValue;
00217                 break;
00218             case C_GET_TEXT_CONTENT:
00219                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00220                 break;// Text
00221             case C_GET_TEXT_DATA:
00222                 pAction = new MHGetTextData;
00223                 break;
00224             case C_GET_TOKEN_POSITION:
00225                 pAction = new MHGetTokenPosition;
00226                 break;
00227             case C_GET_VOLUME:
00228                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00229                 break; // ?
00230             case C_LAUNCH:
00231                 pAction = new MHLaunch;
00232                 break;
00233             case C_LOCK_SCREEN:
00234                 pAction = new MHLockScreen;
00235                 break;
00236             case C_MODULO:
00237                 pAction = new MHModulo;
00238                 break;
00239             case C_MOVE:
00240                 pAction = new MHMove;
00241                 break;
00242             case C_MOVE_TO:
00243                 pAction = new MHMoveTo;
00244                 break;
00245             case C_MULTIPLY:
00246                 pAction = new MHMultiply;
00247                 break;
00248             case C_OPEN_CONNECTION:
00249                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00250                 break; // ?
00251             case C_PRELOAD:
00252                 pAction = new MHPreload;
00253                 break;
00254             case C_PUT_BEFORE:
00255                 pAction = new MHPutBefore;
00256                 break;
00257             case C_PUT_BEHIND:
00258                 pAction = new MHPutBehind;
00259                 break;
00260             case C_QUIT:
00261                 pAction = new MHQuit;
00262                 break;
00263             case C_READ_PERSISTENT:
00264                 pAction = new MHPersistent(":ReadPersistent", true);
00265                 break;
00266             case C_RUN:
00267                 pAction = new MHRun;
00268                 break;
00269             case C_SCALE_BITMAP:
00270                 pAction = new MHScaleBitmap;
00271                 break;
00272             case C_SCALE_VIDEO:
00273                 pAction = new MHScaleVideo;
00274                 break;
00275             case C_SCROLL_ITEMS:
00276                 pAction = new MHScrollItems;
00277                 break;
00278             case C_SELECT:
00279                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00280                 break; // Button
00281             case C_SELECT_ITEM:
00282                 pAction = new MHSelectItem;
00283                 break;
00284             case C_SEND_EVENT:
00285                 pAction = new MHSendEvent;
00286                 break;
00287             case C_SEND_TO_BACK:
00288                 pAction = new MHSendToBack;
00289                 break;
00290             case C_SET_BOX_SIZE:
00291                 pAction = new MHSetBoxSize;
00292                 break;
00293             case C_SET_CACHE_PRIORITY:
00294                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00295                 break; // ?
00296             case C_SET_COUNTER_END_POSITION:
00297                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00298                 break; // Stream
00299             case C_SET_COUNTER_POSITION:
00300                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00301                 break; // Stream
00302             case C_SET_COUNTER_TRIGGER:
00303                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00304                 break; // Stream
00305             case C_SET_CURSOR_POSITION:
00306                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00307                 break; // ?
00308             case C_SET_CURSOR_SHAPE:
00309                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00310                 break; // ?
00311             case C_SET_DATA:
00312                 pAction = new MHSetData;
00313                 break;
00314             case C_SET_ENTRY_POINT:
00315                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00316                 break; // EntryField
00317             case C_SET_FILL_COLOUR:
00318                 pAction = new MHSetFillColour;
00319                 break;
00320             case C_SET_FIRST_ITEM:
00321                 pAction = new MHSetFirstItem;
00322                 break;
00323             case C_SET_FONT_REF:
00324                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00325                 break; // Text
00326             case C_SET_HIGHLIGHT_STATUS:
00327                 pAction = new MHSetHighlightStatus;
00328                 break;
00329             case C_SET_INTERACTION_STATUS:
00330                 pAction = new MHSetInteractionStatus;
00331                 break;
00332             case C_SET_LABEL:
00333                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00334                 break; // PushButton
00335             case C_SET_LINE_COLOUR:
00336                 pAction = new MHSetLineColour;
00337                 break;
00338             case C_SET_LINE_STYLE:
00339                 pAction = new MHSetLineStyle;
00340                 break;
00341             case C_SET_LINE_WIDTH:
00342                 pAction = new MHSetLineWidth;
00343                 break;
00344             case C_SET_OVERWRITE_MODE:
00345                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00346                 break; // EntryField
00347             case C_SET_PALETTE_REF:
00348                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00349                 break; // Visible
00350             case C_SET_PORTION:
00351                 pAction = new MHSetPortion;
00352                 break;
00353             case C_SET_POSITION:
00354                 pAction = new MHSetPosition;
00355                 break;
00356             case C_SET_SLIDER_VALUE:
00357                 pAction = new MHSetSliderValue;
00358                 break;
00359             case C_SET_SPEED:
00360                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00361                 break; // ?
00362             case C_SET_TIMER:
00363                 pAction = new MHSetTimer;
00364                 break;
00365             case C_SET_TRANSPARENCY:
00366                 pAction = new MHSetTransparency;
00367                 break;
00368             case C_SET_VARIABLE:
00369                 pAction = new MHSetVariable;
00370                 break;
00371             case C_SET_VOLUME:
00372                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00373                 break; // ?
00374             case C_SPAWN:
00375                 pAction = new MHSpawn;
00376                 break;
00377             case C_STEP:
00378                 pAction = new MHStep;
00379                 break;
00380             case C_STOP:
00381                 pAction = new MHStop;
00382                 break;
00383             case C_STORE_PERSISTENT:
00384                 pAction = new MHPersistent(":StorePersistent", false);
00385                 break;
00386             case C_SUBTRACT:
00387                 pAction = new MHSubtract;
00388                 break;
00389             case C_TEST_VARIABLE:
00390                 pAction = new MHTestVariable;
00391                 break;
00392             case C_TOGGLE:
00393                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00394                 break; // Button
00395             case C_TOGGLE_ITEM:
00396                 pAction = new MHToggleItem;
00397                 break;
00398             case C_TRANSITION_TO:
00399                 pAction = new MHTransitionTo;
00400                 break;
00401             case C_UNLOAD:
00402                 pAction = new MHUnload;
00403                 break;
00404             case C_UNLOCK_SCREEN:
00405                 pAction = new MHUnlockScreen;
00406                 break;
00407                 // UK MHEG added actions.
00408             case C_SET_BACKGROUND_COLOUR:
00409                 pAction = new MHSetBackgroundColour;
00410                 break;
00411             case C_SET_CELL_POSITION:
00412                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00413                 break; // ?
00414             case C_SET_INPUT_REGISTER:
00415                 pAction = new MHSetInputRegister;
00416                 break;
00417             case C_SET_TEXT_COLOUR:
00418                 pAction = new MHSetTextColour;
00419                 break;
00420             case C_SET_FONT_ATTRIBUTES:
00421                 pAction = new MHSetFontAttributes;
00422                 break;
00423             case C_SET_VIDEO_DECODE_OFFSET:
00424                 pAction = new MHSetVideoDecodeOffset;
00425                 break;
00426             case C_GET_VIDEO_DECODE_OFFSET:
00427                 pAction = new MHGetVideoDecodeOffset;
00428                 break;
00429             case C_GET_FOCUS_POSITION:
00430                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00431                 break; // HyperText
00432             case C_SET_FOCUS_POSITION:
00433                 pAction = new MHUnimplementedAction(pElemAction->GetTagNo());
00434                 break; // HyperText
00435             case C_SET_BITMAP_DECODE_OFFSET:
00436                 pAction = new MHSetBitmapDecodeOffset;
00437                 break;
00438             case C_GET_BITMAP_DECODE_OFFSET:
00439                 pAction = new MHGetBitmapDecodeOffset;
00440                 break;
00441             case C_SET_SLIDER_PARAMETERS:
00442                 pAction = new MHSetSliderParameters;
00443                 break;
00444 
00445             default:
00446                 MHLOG(MHLogWarning, QString("Unknown action %1").arg(pElemAction->GetTagNo()));
00447                 // Future proofing: ignore any actions that we don't know about.
00448                 // Obviously these can only arise in the binary coding.
00449                 pAction = NULL;
00450         }
00451 
00452         if (pAction)
00453         {
00454             Append(pAction); // Add to the sequence.
00455             pAction->Initialise(pElemAction, engine);
00456         }
00457     }
00458 }
00459 
00460 void MHActionSequence::PrintMe(FILE *fd, int nTabs) const
00461 {
00462     for (int i = 0; i < Size(); i++)
00463     {
00464         GetAt(i)->PrintMe(fd, nTabs);
00465     }
00466 }