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Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK. http://www.xara.com/ =================================XARAHEADEREND============================ */ // Implementation file for operation to smooth whole paths // or between selected points /* */ #include "camtypes.h" //#include "resource.h" //#include "barsdlgs.h" //#include "mike.h" //#include "ops.h" - in camtypes.h [AUTOMATICALLY REMOVED] #include "opsmooth.h" //#include "app.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "document.h" - in camtypes.h [AUTOMATICALLY REMOVED] #include "nodepath.h" #include "ophist.h" //#include "jim.h" DECLARE_SOURCE("$Revision: 1282 $"); CC_IMPLEMENT_DYNCREATE( OpSmoothSelection, SelOperation ) #define new CAM_DEBUG_NEW /******************************************************************************************** > OpSmoothSelection::OpSmoothSelection() Author: Mike_Kenny (Xara Group Ltd) Created: 20/10/94 Purpose: OpSmoothSelection() constructor SeeAlso: - ********************************************************************************************/ OpSmoothSelection::OpSmoothSelection() { // Dummy constructor } /******************************************************************************************** > BOOL OpSmoothSelection::Init() Author: Mike_Kenny (Xara Group Ltd) Created: 26/7/94 Inputs: - Outputs: - Returns: TRUE if the operation could be successfully initialised FALSE if no more memory could be allocated Purpose: OpDeletePoints initialiser method Errors: ERROR will be called if there was insufficient memory to allocate the operation. SeeAlso: - ********************************************************************************************/ BOOL OpSmoothSelection::Init() { return (RegisterOpDescriptor(0, // tool ID _R(IDS_SMOOTHSELECTIONOP), // string resource ID CC_RUNTIME_CLASS(OpSmoothSelection),// runtime class for Op OPTOKEN_SMOOTHSELECTION, // Ptr to token string OpSmoothSelection::GetState, // GetState function 0, // help ID _R(IDBBL_SMOOTHSELECTIONOP), // bubble help ID _R(IDD_BARCONTROLSTORE), // resource ID _R(IDC_BTN_SMOOTHSELECTIONOP), // control ID SYSTEMBAR_EDIT, // Group bar ID TRUE, // Receive messages FALSE, // Smart FALSE, // Clean 0, // One open Instance ID (GREY_WHEN_NO_CURRENT_DOC | GREY_WHEN_NO_SELECTION) )); } /******************************************************************************************** > OpState OpSmoothSelection::GetState(String_256*, OpDescriptor*) Author: Mike_Kenny (Xara Group Ltd) Created: 20/10/94 Inputs: - Outputs: - Returns: The state of the OpSmoothSelection Purpose: For finding the OpSmoothSelection state. Errors: - SeeAlso: - ********************************************************************************************/ OpState OpSmoothSelection::GetState(String_256* UIDescription, OpDescriptor*) { OpState OpSt; String_256 DisableReason; OpSt.Greyed = FALSE; BOOL FoundSelected = FALSE; // Go through the selection until we find a selected point SelRange* Selected = GetApplication()->FindSelection(); Node* pNode = Selected->FindFirst(); while (pNode) { if (pNode->GetRuntimeClass() == CC_RUNTIME_CLASS(NodePath)) { if (((NodePath*)pNode)->InkPath.NumSplinters() >0 ) { FoundSelected = TRUE; break; } } pNode = Selected->FindNext(pNode); } // The operation is disabled if there are no complex paths selected if (!FoundSelected) { OpSt.Greyed = TRUE; DisableReason = String_256(_R(IDS_NEEDS_SELECTED_POINT)); *UIDescription = DisableReason; } return(OpSt); } /******************************************************************************************** > void OpSmoothSelection::GetOpName(String_256* OpName) Author: Mike_Kenny (Xara Group Ltd) Created: 20/10/94 Inputs: - Outputs: The undo string for the operation Returns: Purpose: The GetOpName fn is overridden so that we return back a description appropriate to the type of attribute that the operation applies. Errors: - SeeAlso: - ********************************************************************************************/ void OpSmoothSelection::GetOpName(String_256* OpName) { *OpName = String_256(_R(IDS_UNDO_SMOOTHSELECTIONOP)); } /******************************************************************************************** > void OpSmoothSelection::Do(OpDescriptor* opDesc) Author: Mike_Kenny (Xara Group Ltd) Created: 20/10/94 Inputs: pointer to an OpDescriptor (unused) Outputs: - Returns: - Purpose: This operation will smooth all selected paths within the current document Before smoothing any complete path, the path is searched for selected points The action of the smooth given a number of selected points is as follows No sel points: Smooth the whole path One sel point: Smooth the whole path. Could smooth from the start of the path to this point but the user does not generally known which part is the start of the path. Two sel points: Smooth the section of path lying between these points. Even number: Smooth using inside/outside section processing. (a,b) (c,d) .... (y,z) etc are regions for smoothing Odd number: Smooth as for even number apart from last region (a,b) (c,d) ........ (f,g,h) Errors: failandexecute will be called if the operation fails in some way, most likely when no memory is available. ********************************************************************************************/ void OpSmoothSelection::Do(OpDescriptor*) { // Obtain the current selections SelRange* Selected = GetApplication()->FindSelection(); NodePath* pSmoothNode; // Now, because we're going to be doing mad things to the selection, we have to make a list // of all the selected nodes, so that adding nodes into the tree won't confuse us List* NodeList = Selected->MakeListOfNodes(); NodeListItem* CurItem = (NodeListItem*)(NodeList->GetHead()); if (!CurItem) goto FailAndDeleteList; // remember the selection before the operation if (!DoStartSelOp(FALSE,FALSE)) goto FailAndDeleteList; while (CurItem) { if (CurItem->pNode->GetRuntimeClass() == CC_RUNTIME_CLASS(NodePath)) { // get a pointer to the NodePath NodePath* pThisNode = (NodePath*)(CurItem->pNode); BOOL ok; Node* pnode; // Copy the nodepath and all its children, without placing the copy in the tree CALL_WITH_FAIL(pThisNode->NodeCopy(&pnode), this, ok); if (!ok) goto DeleteList; pSmoothNode = (NodePath*)pnode; // ok, smooth the nodepaths path data double error = SMOOTH_CONSTANT; CALL_WITH_FAIL(pSmoothNode->InkPath.SmoothRegions(error, FALSE, TRUE), this, ok); if (!ok) goto DeleteListAndPath; // update the smoothed paths bounding rectangle pSmoothNode->InvalidateBoundingRect(); pSmoothNode->InkPath.ClearSubSelection(); // Now stick the new path into the tree CALL_WITH_FAIL(DoInsertNewNode(pSmoothNode, pThisNode, NEXT, TRUE), this, ok); if (!ok) goto DeleteListAndPath; // Now we've formed a smoothed path, let's hide the original CALL_WITH_FAIL(DoHideNode(pThisNode,TRUE), this, ok); if (!ok) goto DeleteList; } CurItem = (NodeListItem*)(NodeList->GetNext(CurItem)); } End(); // delete the nodelist (and all the list items) while (!NodeList->IsEmpty()) delete (NodeListItem*)(NodeList->RemoveHead()); delete NodeList; return; FailAndDeleteList: while (!NodeList->IsEmpty()) delete (NodeListItem*)(NodeList->RemoveHead()); delete NodeList; FailAndExecute(); End(); return; DeleteListAndPath: pSmoothNode->CascadeDelete(); delete pSmoothNode; DeleteList: while (!NodeList->IsEmpty()) delete (NodeListItem*)(NodeList->RemoveHead()); delete NodeList; End(); return; }