diff options
Diffstat (limited to 'src/document.h')
| -rw-r--r-- | src/document.h | 53 |
1 files changed, 47 insertions, 6 deletions
diff --git a/src/document.h b/src/document.h index 81700b4..763db7a 100644 --- a/src/document.h +++ b/src/document.h @@ -36,7 +36,10 @@ class Document { typedef const void *SciDoc; SciDoc doc; - /* updated/restored only when required */ + /* + * The so called "parameters". + * Updated/restored only when required + */ gint anchor, dot; gint first_line, xoffset; @@ -47,8 +50,15 @@ public: } virtual ~Document() { - if (is_initialized()) - interface.ssm(SCI_RELEASEDOCUMENT, 0, (sptr_t)doc); + /* + * Cannot release document here, since we must + * do it on the same view that created it. + * We also cannot call get_create_document_view() + * since it is virtual. + * So we must demand that deriving classes call + * release_document() from their destructors. + */ + g_assert(doc == NULL); } inline bool @@ -57,10 +67,10 @@ public: return doc != NULL; } - void edit(void); - void undo_edit(void); + void edit(ViewCurrent *view); + void undo_edit(ViewCurrent *view); - void update(void); + void update(ViewCurrent *view); inline void update(const Document &from) { @@ -92,6 +102,37 @@ public: undo.push_var(doc); undo_reset(); } + +protected: + inline void + release_document(void) + { + if (is_initialized()) { + ViewCurrent *view = get_create_document_view(); + view->ssm(SCI_RELEASEDOCUMENT, 0, (sptr_t)doc); + doc = NULL; + } + } + +private: + /* + * Must be implemented by derived class. + * Documents must be released on the same view + * as they were created. + * Since we do not want to save this view + * per document, it must instead be returned by + * this method. + */ + virtual ViewCurrent *get_create_document_view(void) = 0; + + inline void + maybe_create_document(void) + { + if (!is_initialized()) { + ViewCurrent *view = get_create_document_view(); + doc = (SciDoc)view->ssm(SCI_CREATEDOCUMENT); + } + } }; } /* namespace SciTECO */ |