Camelot: OpSelectPrevFrame Class Reference

OpSelectPrevFrame Class Reference

Inheritance diagram for OpSelectPrevFrame:

List of all members.

Public Member Functions

OpSelectPrevFrame ()

void

Do (OpDescriptor *pOpDesc)

Tries to select the previous animation frame (i.e. layer).

Static Public Member Functions

static OpState

GetState (String_256 *, OpDescriptor *)

For finding the OpSelectPrevFrame's state.

Private Member Functions

CC_DECLARE_DYNCREATE (OpSelectPrevFrame)

Member Function Documentation

OpSelectPrevFrame::CC_DECLARE_DYNCREATE ( OpSelectPrevFrame ) [private]

void OpSelectPrevFrame::Do ( OpDescriptor * pOpDesc ) [virtual]

Tries to select the previous animation frame (i.e. layer).

Author:: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com>

Date:: 22/4/97

Parameters:

	OpDescriptor	(unused) [INPUTS]
	-	[OUTPUTS]

Returns:: -
Errors: -

See also:: -

Reimplemented from Operation.

Definition at line 504 of file frameops.cpp.

00505 {
00506     // Just find the background layer and then ask our baseclass to delete it for us
00507     // Is there a selected spread?
00508     Spread * pSpread = Document::GetSelectedSpread();
00509     if (pSpread)
00510     {
00511 PORTNOTE("other", "Disabled FrameSGallery")
00512 #ifndef EXCLUDE_FROM_XARALX
00513         // Check that all visible layers are actually frame layers
00514         FrameSGallery::EnsureFrameLayerIntegrity(pSpread);
00515 #endif
00516         // yes, so find the last layer and try to move to it
00517         Layer * pLayer = pSpread->FindActiveLayer();
00518         Layer * pPrevLayer = NULL;
00519         if (pLayer)
00520             pPrevLayer = pLayer->FindPrevFrameLayer();
00521         if (pPrevLayer)
00522         {
00523             OpLayerGalParam Param(FRAME_SELECT, pSpread);
00524             Param.pLayer = pPrevLayer;
00525             DoWithParam(pOpDesc, (OpParam*)&Param);
00526         }
00527     }
00528 
00529     // End the operation, but we are calling DoWithParam() which we will assume does it for us.
00530     //End();
00531 
00532     return;
00533 }

OpState OpSelectPrevFrame::GetState	(	String_256 *	pUIDescription,
		OpDescriptor *	pOpDesc
	)	`[static]`

For finding the OpSelectPrevFrame's state.

Author:: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com>

Date:: 22/4/97

Parameters:

	Name	of the OpDescriptor being queried [INPUTS]
	The	string to show to the user [OUTPUTS]

Returns:: The state of the OpSelectPrevFrame operation
Errors: -

See also:: -

Reimplemented from OpLayerGalChange.

Definition at line 402 of file frameops.cpp.

00403 {
00404     //The frame movement controls on the GIF animation bar now work on frames only.
00405     OpState OpSt;  
00406 
00407 #ifdef WEBSTER
00408 
00409     // Is there a selected spread?
00410     Spread * pSpread = Document::GetSelectedSpread();
00411     if (pSpread)
00412     {
00413         // yes, so check if there is an active layer
00414         Layer * pLayer = pSpread->FindActiveLayer();
00415         // If there is an active layer and one preceeding then we are not greyed
00416         Layer * pPrevLayer = pLayer->FindPrevLayer();
00417         // The previous layer should really be a frame layer but we cannot guarantee that but
00418         // it mustn't be a guide, a page background or a background layer.
00419         while ( pPrevLayer && !pPrevLayer->IsPseudoFrame())
00420         {
00421             pPrevLayer = pPrevLayer->FindPrevLayer();
00422         }
00423      
00424         if (pLayer && pPrevLayer)
00425         {
00426             // Yes, so we are allowed to move to the previous one
00427             OpSt.Greyed = FALSE;
00428         }
00429         else
00430         {
00431             // No, so we are greyed
00432             OpSt.Greyed = TRUE;
00433         }
00434     }
00435     else
00436     {
00437         // No selected spread, so we are greyed
00438         OpSt.Greyed = TRUE;
00439     }
00440 
00441 #else
00442     // Are we in frame mode.
00443     BOOL FrameMode = IsFrameMode();
00444 
00445     if(FrameMode)
00446     {
00447         // Is there a selected spread?
00448         Spread * pSpread = Document::GetSelectedSpread();
00449         if (pSpread)
00450         {
00451             // yes, so check if there is an active layer
00452             Layer * pLayer = pSpread->FindActiveLayer();
00453             // If there is an active layer and one preceeding then we are not greyed
00454             Layer * pPrevLayer = pLayer->FindPrevLayer();
00455             // The previous layer should really be a frame layer but we cannot guarantee that but
00456             // it mustn't be a guide, a page background or a background layer.
00457             while ( pPrevLayer && !pPrevLayer->IsPseudoFrame())
00458             {
00459                 pPrevLayer = pPrevLayer->FindPrevLayer();
00460             }
00461 
00462             if (pLayer && pPrevLayer)
00463             {
00464                 // Yes, so we are allowed to move to the previous one
00465                 OpSt.Greyed = FALSE;
00466             }
00467             else
00468             {
00469                 // No, so we are greyed
00470                 OpSt.Greyed = TRUE;
00471             }
00472         }
00473         else
00474         {
00475             // No selected spread, so we are greyed
00476             OpSt.Greyed = TRUE;
00477         }
00478     }
00479     else
00480     {
00481         // The document is layer based, so we are greyed.
00482         OpSt.Greyed = TRUE;
00483     }
00484 #endif
00485 
00486     return OpSt;   
00487 }

Generated on Sat Nov 10 03:58:52 2007 for Camelot by

1.4.4

OpSelectPrevFrame Class Reference

Public Member Functions

Static Public Member Functions

Private Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation