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Text File | 1995-12-08 | 24.7 KB | 879 lines | [TEXT/MPS ] |
- /*------------------------------------------------------------------------------
- File: PictureViewerUtils.cpp
-
- Contains: Implementation of utility routines and classes.
-
- Written by: Sue Dumont [based on SamplePart by Steve Smith]
-
- Copyright: © 1994-95 by Apple Computer, Inc., all rights reserved.
- ------------------------------------------------------------------------------*/
-
- // -- Compiler/Preprocessor Switches --
-
- #ifndef _COMPILERDEFS_
- #include "CompDefs.h"
- #endif
-
- // -- OpenDoc Utilities --
-
- #ifndef _EXCEPT_
- // Exceptions define several important macros (eg. CHECKENV)
- // which are used in the SOM method dispatch glue. If Except.h
- // is not included early enough, exceptions may not be thrown
- // correctly when returning from a SOM method with the "ev" parameter set.
- #include <Except.h>
- #endif
-
- // --- PictureViewer Includes ---
-
- #ifndef _PICTUREVIEWERUTILS_
- #include "PictureViewerUtils.h"
- #endif
-
- #ifndef _PICTUREVIEWERDEF_
- #include "PictureViewerDef.h"
- #endif
-
- // --- OpenDoc Includes ---
-
- #ifndef _ODTYPES_
- #include <ODTypes.h>
- #endif
-
- #ifndef SOM_ODCanvas_xh
- #include <Canvas.xh>
- #endif
-
- #ifndef SOM_ODDraft_xh
- #include <Draft.xh>
- #endif
-
- #ifndef SOM_ODFacet_xh
- #include <Facet.xh>
- #endif
-
- #ifndef SOM_ODFrame_xh
- #include <Frame.xh>
- #endif
-
- #ifndef SOM_ODFrameFacetIterator_xh
- #include <FrFaItr.xh>
- #endif
-
- #ifndef SOM_ODSession_xh
- #include <ODSessn.xh>
- #endif
-
- #ifndef SOM_Module_OpenDoc_StdProps_defined
- #include <StdProps.xh>
- #endif
-
- #ifndef SOM_Module_OpenDoc_StdTypes_defined
- #include <StdTypes.xh>
- #endif
-
- #ifndef SOM_ODStorageUnit_xh
- #include <StorageU.xh>
- #endif
-
- #ifndef SOM_ODStorageUnitView_xh
- #include <SUView.xh>
- #endif
-
- #ifndef SOM_ODDocument_xh
- #include <Document.xh>
- #endif
-
- #ifndef SOM_ODContainer_xh
- #include <ODCtr.xh>
- #endif
-
- #ifndef SOM_ODNameSpaceManager_xh
- #include <NmSpcMg.xh>
- #endif
-
- #ifndef SOM_ODValueNameSpace_xh
- #include <ValueNS.xh>
- #endif
-
- #ifndef SOM_ODWindowState_xh
- #include <WinStat.xh>
- #endif
-
- // -- OpenDoc Utilities --
-
- #ifndef _BNDNSUTL_
- #include <BndNSUtl.h>
- #endif
-
- #ifndef _DOCUTILS_
- #include <DocUtils.h>
- #endif
-
- #ifndef _ODDEBUG_
- #include <ODDebug.h>
- #endif
-
- #ifndef _ISOSTR_
- #include "ISOStr.h"
- #endif
-
- #ifndef _STDTYPIO_
- #include <StdTypIO.h>
- #endif
-
- #ifndef _STORUTIL_
- #include <StorUtil.h>
- #endif
-
- #ifndef _TEMPOBJ_
- #include <TempObj.h>
- #endif
-
- #ifndef _TEMPITER_
- #include <TempIter.h>
- #endif
-
- #ifndef _USERSRCM_
- #include <UseRsrcM.h>
- #endif
-
- // --- Macintosh Includes ---
-
- #ifndef __RESOURCES__
- #include <Resources.h>
- #endif
-
- #ifndef __GXMATH__
- #include <GXMath.h>
- #endif
-
- #ifndef __SCRIPT__
- #include <Script.h>
- #endif
-
- #ifndef __TEXTUTILS__
- #include <TextUtils.h>
- #endif
-
-
- #pragma segment PictureViewerUtilities
-
- //====================================================================
- // Utility Functions
- //====================================================================
-
- //--------------------------------------------------------------------
- // GetPartName
- //--------------------------------------------------------------------
- ODIText* GetPartName(Environment* ev, ODPart* part, ODType category)
- {
- ASSERT(part != kODNULL, kODErrIllegalNullPartInput);
-
- // Get the root part of the document.
- ODDraft* draft = ODGetDraft(ev,part);
- TempODPart rootPart = ODAcquireRootPartOfDraft(ev, draft);
-
- // Get the part name.
- // If we can't get a valid name for the part, we generate one using
- // the user visible category name of the part's category.
- TempODIText partName = ODGetITextProp(ev, part->GetStorageUnit(ev),
- kODPropName, kODMacIText, kODNULL);
-
- // If the part is the root of the document, return the name of the file.
- if ( ODObjectsAreEqual(ev, part, rootPart) )
- {
- ODContainer* container = draft->GetDocument(ev)->GetContainer(ev);
- TempPlatformFile file = GetPlatformFileFromContainer(ev, container);
-
- TempODIText fileName = file->GetName();
-
- // Test the file name against the part name. If the two are equivalent
- // (not equal), then use the part name.
- if ( !NamesAreEquivalent(ev, fileName, partName) )
- {
- // If the names are different, return the file name.
- // (This code transfers the ODIText object to the partName tempobj)
- DisposeIText(partName.DontDelete());
- partName = fileName.DontDelete();
- }
- }
- else
- {
- if ( (partName == kODNULL) || (GetITextStringLength(partName) == 0) )
- {
- ODIText* categoryName;
- ODNameSpaceManager* nsMgr = ODGetSession(ev,part)->GetNameSpaceManager(ev);
-
- // Get the category string from the category name space.
- if ( GetUserCatFromCat(nsMgr, category, &categoryName) )
- {
- // If we successfully retrieved the category user string, return it.
- // (This code transfers the ODIText object to the partName tempobj)
- DisposeIText(partName.DontDelete());
- partName = categoryName;
- }
- else
- {
- #if ODDebug
- // This should never happen. Check NMAP for errors.
- DebugStr("\pCategory NMAP bad, or Preferences corrupted.");
- #else
- THROW(kODErrInvalidNSType);
- #endif
- }
- }
- }
-
- return partName.DontDelete();
- }
-
- //--------------------------------------------------------------------
- // NamesAreEquivalent
- //--------------------------------------------------------------------
- ODBoolean NamesAreEquivalent(Environment* ev, ODIText* fileName,
- ODIText* partName)
- {
- Str255 fileStr;
- Str255 partStr;
-
- // If the strings are in different languages, we're done.
- if ( (GetITextScriptCode(fileName) != GetITextScriptCode(partName)) ||
- GetITextLangCode(fileName) != GetITextLangCode(partName) )
- return kODFalse;
-
- GetITextPString(fileName, fileStr);
- GetITextPString(partName, partStr);
-
- // If the string lengths are different, we're done.
- if ( fileStr[0] != partStr[0] )
- return kODFalse;
-
- // Return the Toolbox string equivalence test.
- return EqualString(fileStr,partStr,kODTrue,kODTrue);
- }
-
- //--------------------------------------------------------------------
- // GetEditorScriptLanguage
- //--------------------------------------------------------------------
- void GetEditorScriptLanguage(Environment* ev, ODScriptCode* script,
- ODLangCode* language)
- {
- long region;
- ODSLong savedRefNum;
-
- savedRefNum = BeginUsingLibraryResources();
- {
- Handle versHdl = Get1Resource('vers', 1);
-
- // Get the region code of the editor/viewer, otherwise
- // use the region code the of the primary system script.
-
- if ( versHdl )
- {
- region = (long)(*(VersRecHndl)versHdl)->countryCode;
- ReleaseResource(versHdl);
- }
- else
- {
- region = GetScriptManagerVariable(smRegionCode);
- }
-
- // Spanish & Japanese are not actually supported by this viewer.
- // They are provided as examples of how to add recognition of
- // additional regions (see Script.h for region codes).
-
- switch ((short)region) {
- case verUS:
- *script = smRoman;
- *language = langEnglish;
- break;
- case verSpain:
- *script = smRoman;
- *language = langSpanish;
- break;
- case verJapan:
- *script = smJapanese;
- *language = langJapanese;
- break;
- default:
- *script = smRoman;
- *language = langEnglish;
- }
- }
- EndUsingLibraryResources(savedRefNum);
- }
-
- //--------------------------------------------------------------------
- // BeginGWorldThumbnail
- //--------------------------------------------------------------------
- GWorldPtr BeginGWorldThumbnail(CGrafPtr* savePort, GDHandle* saveGDevice)
- {
- GWorldPtr gwPtr;
- Rect bounds;
-
- ODVolatile(gwPtr);
-
- TRY
- // Save window's graphics port and device
- GetGWorld(savePort, saveGDevice);
-
- // Set the bounds rect to enclose the 64x64 thumbnail.
- SetRect(&bounds, 0, 0, kODThumbnailSize, kODThumbnailSize);
-
- // Create offscreen GWorld
- THROW_IF_ERROR( NewGWorld(&gwPtr, 0, &bounds, 0, 0, useTempMem) );
-
- SetGWorld(gwPtr, nil);
-
- // Initialize the pixel image
- EraseRect(&gwPtr->portRect);
-
- CATCH_ALL
- DisposeGWorld(gwPtr);
- gwPtr = kODNULL;
- ENDTRY
-
- return gwPtr;
- }
-
- //--------------------------------------------------------------------
- // EndGWorldThumbnail
- //--------------------------------------------------------------------
- void EndGWorldThumbnail(CGrafPtr savePort, GDHandle saveGDevice)
- {
- SetGWorld(savePort, saveGDevice);
- }
-
- //--------------------------------------------------------------------
- // DrawGWorldThumbnail
- //--------------------------------------------------------------------
- void DrawGWorldThumbnail(Environment* ev, GWorldPtr gwPtr, ODFacet* facet)
- {
- GrafPtr thePort;
- Rect bounds;
-
- if ( gwPtr )
- {
- SetRect(&bounds, 0, 0, kODThumbnailSize, kODThumbnailSize);
- thePort = facet->GetCanvas(ev)->GetQDPort(ev);
-
- if ( LockPixels( GetGWorldPixMap(gwPtr) ) )
- {
- CopyBits(&((GrafPtr)gwPtr)->portBits, &thePort->portBits,
- &bounds, &bounds, srcCopy, nil);
- UnlockPixels( GetGWorldPixMap(gwPtr) );
- }
- }
- }
-
- //-------------------------------------------------------------------------
- // Read1IndResource
- //-------------------------------------------------------------------------
-
- ODHandle Read1IndResource(ResType type, short index)
- {
- // This routine will read a resource in from the current resource
- // file and into temporary memory rather than the application heap.
- // The ODReadResource routine couldn't be used because it reads a
- // resource from the editor's resource fork, not the current file's,
- // but the code here was stolen liberally from that routine.
-
- ODHandle result = kODNULL;
- ODVolatile(result);
-
- SetResLoad(false);
- Handle rsrc = Get1IndResource(type, index);
- SetResLoad(true);
-
- if ( rsrc == kODNULL )
- {
- OSErr err = ResError();
- THROW(err ? err : resNotFound);
- }
-
- TRY
- ODSize size = (*rsrc) ? GetHandleSize(rsrc) : GetResourceSizeOnDisk(rsrc);
-
- result = ODNewHandle(size);
- void* dst = ODLockHandle(result);
-
- if ( *rsrc == kODNULL )
- {
- // Resource is not in memory, use partial-resource call:
- ReadPartialResource(rsrc, 0, dst, size);
- THROW_IF_ERROR(ResError());
- ReleaseResource(rsrc);
- }
- else
- {
- // Resource is already in memory; just copy it:
- ODBlockMove(*rsrc, dst, size);
- }
-
- ODUnlockHandle(result);
- CATCH_ALL
- if ( *rsrc == kODNULL )
- ReleaseResource(rsrc);
- if ( result )
- ODDisposeHandle(result);
- RERAISE;
- ENDTRY
-
- return result;
- }
-
- //--------------------------------------------------------------------
- // FixedToIntRect
- //--------------------------------------------------------------------
- void FixedToIntRect(ODRect& fixedRect, Rect& intRect)
- {
- intRect.top = FixedToInt(fixedRect.top);
- intRect.left = FixedToInt(fixedRect.left);
- intRect.bottom = FixedToInt(fixedRect.bottom);
- intRect.right = FixedToInt(fixedRect.right);
- }
-
- //--------------------------------------------------------------------
- // IntToFixedRect
- //--------------------------------------------------------------------
-
- void IntToFixedRect(Rect& intRect, ODRect& fixedRect)
- {
- fixedRect.left = ff(intRect.left);
- fixedRect.top = ff(intRect.top);
- fixedRect.right = ff(intRect.right);
- fixedRect.bottom = ff(intRect.bottom);
- }
-
- //--------------------------------------------------------------------
- // TilePartWindow
- //--------------------------------------------------------------------
- Rect TilePartWindow(Environment* ev, Rect* facetBounds, Rect* partWindowBounds)
- {
- const short kWindowTilingConst = 20;
- const short kLeftToRight = 0;
- const short kRightToLeft = -1;
-
- short direction;
-
- // Get the direction for the primary script system running on this machine.
- // (Right-to-Left or Left-to-Right)
- direction = GetSysDirection();
-
- // The child window should be tiled from the topLeft corner of the
- // active facet whose frame is being opened.
- if ( direction == kLeftToRight )
- {
- // Position the window rect at the top/left corner of the facet.
- OffsetRect(partWindowBounds, facetBounds->left, facetBounds->top);
- // Now tile the window rect down and to the right.
- OffsetRect(partWindowBounds, kWindowTilingConst, kWindowTilingConst);
- }
- // The child window should be tiled from the topRight corner of the
- // active facet whose frame is being opened.
- else if ( direction == kRightToLeft )
- {
- // Position the window rect at the top/right corner of the facet.
- OffsetRect(partWindowBounds, (partWindowBounds->right - facetBounds->right),
- facetBounds->top);
- // Now tile the window rect down and to the left.
- OffsetRect(partWindowBounds, -kWindowTilingConst, kWindowTilingConst);
- }
-
- return *partWindowBounds;
- }
-
- //--------------------------------------------------------------------
- // CountFacets
- //--------------------------------------------------------------------
- ODUShort CountFacets(Environment* ev, ODFrame* frame)
- {
- ODUShort facetCount = 0;
- ODFacet* facet;
-
- TempODFrameFacetIterator ffiter(ev, frame);
- facet = ffiter.First();
- while ( ffiter.IsNotComplete() )
- {
- facetCount++;
- facet = ffiter.Next();
- }
-
- return facetCount;
- }
-
- //=========================================================================
- // CFrameProxy
- //=========================================================================
-
- //-------------------------------------------------------------------------
- // CFrameProxy::SetFrame
- //
- // The code will not affect the proxy fields unless it can successfully
- // acquire the incoming frame, its id, and the draft the frame lives in.
- // If something goes wrong, the proxy remains unchanged.
- //-------------------------------------------------------------------------
- void CFrameProxy::SetFrame(Environment* ev, ODFrame* frame)
- {
- ASSERT(frame!=kODNULL, kODErrIllegalNullFrameInput);
-
- ODID id;
- ODDraft* draft;
-
- // Using the temp object will cleanup the incoming
- // frame's refcount if something goes wrong.
- frame->Acquire(ev);
- TempODFrame tFrame = frame;
-
- // Perform all the operations that can fail, first.
- TempODPart tPart = frame->AcquirePart(ev);
- id = frame->GetID(ev);
- draft = ODGetDraft(ev, tPart);
- ODReleaseObject(ev, fFrame);
-
- // If all went well, set the proxy fields.
- fFrame = tFrame.DontRelease();
- fID = id;
- fDraft = draft;
- }
-
- //-------------------------------------------------------------------------
- // CFrameProxy::GetFrame
- //-------------------------------------------------------------------------
- ODFrame* CFrameProxy::GetFrame(Environment* ev)
- {
- if ( fFrame == kODNULL )
- {
- TRY
- TempODFrame frame = fDraft->AcquireFrame(ev, fID);
- this->SetFrame(ev, frame);
- CATCH_ALL
- fFrame = kODNULL;
- fID = kODNULLID;
- ENDTRY
- }
- return fFrame;
- }
-
- //-------------------------------------------------------------------------
- // CFrameProxy::FrameIsLoaded
- //-------------------------------------------------------------------------
- ODBoolean CFrameProxy::FrameIsLoaded(Environment* ev)
- {
- ODBoolean loaded = (fFrame != kODNULL ||
- fDraft->IsValidID(ev, fID));
- return loaded;
- }
-
- //-------------------------------------------------------------------------
- // CFrameProxy::Purge
- //-------------------------------------------------------------------------
- void CFrameProxy::Purge(Environment* ev)
- {
- if ( fFrame != kODNULL )
- {
- fID = fFrame->GetID(ev);
- ODReleaseObject(ev, fFrame);
- }
- }
-
- //=========================================================================
- // CFrameInfo
- //=========================================================================
-
- //-------------------------------------------------------------------------
- // CFrameInfo::CFrameInfo
- //-------------------------------------------------------------------------
-
- CFrameInfo::CFrameInfo(ODSession* session)
- {
- fSession = session;
- fFrameActive = kODFalse;
- fFrameReactivate = kODFalse;
- fShouldDisposeWindow = kODFalse;
- fIsNegotiated = kODFalse;
- fActiveFacet = kODNULL;
- fSourceFrame = kODNULL;
- fDependentFrame = kODNULL;
- fPartWindowID = kODNULLID;
- }
-
- //-------------------------------------------------------------------------
- // CFrameInfo::~CFrameInfo
- //-------------------------------------------------------------------------
- CFrameInfo::~CFrameInfo()
- {
- // Deleting the proxies will release the encapsulated frames.
- ODDeleteObject(fDependentFrame);
- ODDeleteObject(fSourceFrame);
- }
-
- //-------------------------------------------------------------------------
- // CFrameInfo::Externalize
- //-------------------------------------------------------------------------
- void CFrameInfo::Externalize(Environment* ev, ODStorageUnitView* storageUnitView)
- {
- // This method assumes that OpenDoc has passed us a storageUnitView
- // that is focused to a property, but no particular value.
-
- ODStorageUnit* storageUnit = storageUnitView->GetStorageUnit(ev);
-
- this->CleanseFrameInfoProperty(ev, storageUnit);
- this->ExternalizeFrameInfo(ev, storageUnit, kODNULLKey, kODNULL);
- }
-
- //-------------------------------------------------------------------------
- // CFrameInfo::CleanseFrameInfoProperty
- //-------------------------------------------------------------------------
- void CFrameInfo::CleanseFrameInfoProperty(Environment* ev, ODStorageUnit* storageUnit)
- {
- ODULong numValues;
- ODULong index;
-
- numValues = storageUnit->CountValues(ev);
-
- for (index = numValues; index >= 1; index--)
- {
- // Index, from 1 to n, through the values.
- storageUnit->Focus(ev, kODNULL, kODPosSame,
- kODNULL, index, kODPosUndefined);
-
- // Get the ISO type name for the value. The temp object
- // will automatically delete the returned value when this
- // scope is exited.
- TempODValueType value = storageUnit->GetType(ev);
-
- // If the value type is not one we support, remove it.
- if ( !ODISOStrEqual(value, kPictureViewerInfo) )
- storageUnit->Remove(ev);
- }
- }
-
- //-------------------------------------------------------------------------
- // CFrameInfo::ExternalizeFrameInfo
- //-------------------------------------------------------------------------
- void CFrameInfo::ExternalizeFrameInfo(Environment* ev, ODStorageUnit* storageUnit,
- ODDraftKey key, ODFrame* scopeFrame)
- {
- // This method behaves much the same way as the SamplePart::ExternalizeStateInfo
- // method.
-
- if ( storageUnit->Exists(ev, kODNULL, kPictureViewerInfo, 0) )
- {
- // Persistent object references are stored in a side table, rather than
- // in the property/value stream. Thus, deleting the contents of a value
- // will not "delete" the references previously written to that value. To
- // completely "delete" all references written to the value, we must
- // remove the value and add it back.
-
- storageUnit->Focus(ev, kODNULL, kODPosSame, kPictureViewerInfo, 0, kODPosUndefined);
- storageUnit->Remove(ev);
- }
-
- // Add a value to write the data into.
- storageUnit->AddValue(ev, kPictureViewerInfo);
-
- {
- // Write a weak reference to our source frame.
- ODStorageUnitRef weakRef = {0,0,0,0};
-
- if ( fSourceFrame )
- {
- ODID frameID = fSourceFrame->GetID();
- ODID scopeFrameID = ( scopeFrame ? scopeFrame->GetID(ev) : kODNULLID );
- ODDraft* fromDraft = fSourceFrame->GetDraft();
-
- // If a draft key exists, then we are being cloned to another draft.
- // We must "weak" clone our display frame and reference the cloned
- // frame. The part re-uses the frameID variable so there aren't two
- // different GetWeakStorageUnitRef calls.
- if ( key )
- frameID = fromDraft->WeakClone(ev, key, frameID, kODNULLID, scopeFrameID);
-
- // Write out weak references to each of the part's display frames.
- storageUnit->GetWeakStorageUnitRef(ev, frameID, weakRef);
- }
- StorageUnitSetValue(storageUnit, ev, sizeof(ODStorageUnitRef), (ODPtr)&weakRef);
- }
-
- {
- // Write a weak reference to our dependent frame.
- ODStorageUnitRef weakRef = {0,0,0,0};
-
- if ( fDependentFrame )
- {
- ODID frameID = fDependentFrame->GetID();
- ODID scopeFrameID = ( scopeFrame ? scopeFrame->GetID(ev) : kODNULLID );
- ODDraft* fromDraft = fDependentFrame->GetDraft();
-
- // If a draft key exists, then we are being cloned to another draft.
- // We must "weak" clone our display frame and reference the cloned
- // frame. The part re-uses the frameID variable so there aren't two
- // different GetWeakStorageUnitRef calls.
- if ( key )
- frameID = fromDraft->WeakClone(ev, key, frameID, kODNULLID, scopeFrameID);
-
- // Write out weak references to each of the part's display frames.
- storageUnit->GetWeakStorageUnitRef(ev, frameID, weakRef);
- }
- StorageUnitSetValue(storageUnit, ev, sizeof(ODStorageUnitRef), (ODPtr)&weakRef);
- }
- }
-
- //-------------------------------------------------------------------------
- // CFrameInfo::CloneInto
- //-------------------------------------------------------------------------
- void CFrameInfo::CloneInto(Environment *ev, ODDraftKey key,
- ODStorageUnitView* storageUnitView, ODFrame* scopeFrame)
- {
- // This method assumes that OpenDoc has passed us a storageUnitView
- // that is focused to a property, but no particular value.
-
- ODStorageUnit* storageUnit = storageUnitView->GetStorageUnit(ev);
-
- if ( storageUnit->Exists(ev, kODNULL, kPictureViewerInfo, 0) == kODFalse )
- {
- this->ExternalizeFrameInfo(ev, storageUnit, key, scopeFrame);
- }
- }
-
- //-------------------------------------------------------------------------
- // CFrameInfo::InitFromStorage
- //------------------------------------------------------------------------------
- void CFrameInfo::InitFromStorage(Environment* ev, ODStorageUnitView* storageUnitView)
- {
- // This method assumes that OpenDoc has passed us a storageUnitView
- // that is focused to a property, but no particular value.
-
- ODStorageUnit* storageUnit = storageUnitView->GetStorageUnit(ev);
-
- if ( storageUnit->Exists(ev, kODNULL, kPictureViewerInfo, 0) )
- {
- TRY
- storageUnit->Focus(ev, kODNULL, kODPosSame,
- kPictureViewerInfo, 0 , kODPosUndefined);
-
- ODStorageUnitRef weakRef = {0,0,0,0};
- StorageUnitGetValue(storageUnit, ev, sizeof(ODStorageUnitRef),
- (ODPtr)&weakRef);
-
- if ( storageUnit->IsValidStorageUnitRef(ev, weakRef) )
- {
- // Convert the reference into a runtime id.
- ODID frameID = storageUnit->GetIDFromStorageUnitRef(ev, weakRef);
-
- // Create a proxy class to support the lazy internalization.
- CFrameProxy* proxy = new CFrameProxy;
- proxy->InitFrameProxy(frameID, ODGetDraft(ev,storageUnit));
-
- // Store the proxy source frame.
- fSourceFrame = proxy;
- }
-
- CATCH_ALL
- ODDeleteObject(fSourceFrame);
- fSourceFrame = kODNULL;
- ENDTRY
-
- TRY
- ODStorageUnitRef weakRef = {0,0,0,0};
- StorageUnitGetValue(storageUnit, ev, sizeof(ODStorageUnitRef),
- (ODPtr)&weakRef);
-
- if ( storageUnit->IsValidStorageUnitRef(ev, weakRef) )
- {
- // Convert the reference into a runtime id.
- ODID frameID = storageUnit->GetIDFromStorageUnitRef(ev, weakRef);
-
- // Create a proxy class to support the lazy internalization.
- CFrameProxy* proxy = new CFrameProxy;
- proxy->InitFrameProxy(frameID, ODGetDraft(ev,storageUnit));
-
- // Store the proxy dependent frame.
- fDependentFrame = proxy;
- }
-
- CATCH_ALL
- ODDeleteObject(fDependentFrame);
- fDependentFrame = kODNULL;
- ENDTRY
- }
- }
-
- //-------------------------------------------------------------------------
- // CFrameInfo::SetSourceFrame
- //-------------------------------------------------------------------------
- void CFrameInfo::SetSourceFrame(Environment* ev, ODFrame* frame)
- {
- if ( frame != kODNULL )
- {
- // Create a proxy class to support the lazy internalization.
- CFrameProxy* proxy = new CFrameProxy;
- proxy->InitFrameProxy(ev, frame);
-
- // Store the proxy source frame after clearing the old one.
- ODDeleteObject(fSourceFrame);
- fSourceFrame = proxy;
- }
- }
-
- //-------------------------------------------------------------------------
- // CFrameInfo::ReleaseSourceFrame
- //-------------------------------------------------------------------------
- void CFrameInfo::ReleaseSourceFrame(Environment* ev)
- {
- ODDeleteObject(fSourceFrame);
- }
-
- //-------------------------------------------------------------------------
- // CFrameInfo::SetDependentFrame
- //-------------------------------------------------------------------------
- void CFrameInfo::SetDependentFrame(Environment* ev, ODFrame* frame)
- {
- if ( frame != kODNULL )
- {
- // Create a proxy class to support the lazy internalization.
- CFrameProxy* proxy = new CFrameProxy;
- proxy->InitFrameProxy(ev, frame);
-
- // Store the proxy dependent frame after clearing the old one.
- ODDeleteObject(fDependentFrame);
- fDependentFrame = proxy;
- }
- }
-
- //-------------------------------------------------------------------------
- // CFrameInfo::ReleaseDependentFrame
- //-------------------------------------------------------------------------
- void CFrameInfo::ReleaseDependentFrame(Environment* ev)
- {
- ODDeleteObject(fDependentFrame);
- }
-
- //-------------------------------------------------------------------------
- // CFrameInfo::AcquirePartWindow
- //-------------------------------------------------------------------------
-
- ODWindow* CFrameInfo::AcquirePartWindow(Environment* ev)
- {
- ODWindow* window = kODNULL;
-
- if ( fPartWindowID )
- {
- window = fSession->GetWindowState(ev)->AcquireWindow(ev,fPartWindowID);
- if ( !window) fPartWindowID = kODNULLID;
- }
-
- return window;
- }
-
- //-------------------------------------------------------------------------
- // CFrameInfo::SetPartWindow
- //-------------------------------------------------------------------------
-
- void CFrameInfo::SetPartWindow(Environment* ev, ODWindow* window)
- {
- fPartWindowID = window ? window->GetID(ev) : kODNULLID;
- }
-