C++ (Cpp) DependencyObjectCollection::Is Examples

Example #1

File: textselection.cpp Project: 499940913/moon

void
TextSelection::SetText (const char *text)
{
#define CONTENT_START (0)
#define CONTENT_END ((guint32)-1)

	if (anchor.GetParent() == NULL || moving.GetParent() == NULL)
		// if either are null we're going nowhere fast...
		return;

	ClearSelection ();

	// at this point the selection is empty and anchor == moving
	if (text && *text) {
		if (anchor.GetParent()->Is (Type::RUN)) {
			const char *run_text = ((Run*)anchor.GetParent())->GetText();
			if (run_text == NULL)
				run_text = "\0";

			char *new_text = (char*)g_malloc0 (strlen (run_text) + strlen (text) + 1);

			if (strlen (text) < (size_t) anchor.ResolveLocation ()){
				// #339RT enters here
				g_free (new_text);
				new_text = g_strdup ("BUGBUGBUG");
			} else {
				strncpy (new_text, run_text, anchor.ResolveLocation());
				strcpy (new_text + anchor.ResolveLocation(), text);
				strncpy (new_text + anchor.ResolveLocation() + strlen(text), run_text + anchor.ResolveLocation(), strlen (run_text) - anchor.ResolveLocation());
			}

			((Run*)anchor.GetParent())->SetText (new_text);

			if (moving.GetLocation() > strlen (new_text)) {
				anchor = TextPointer (anchor.GetParent(), CONTENT_END, anchor.GetLogicalDirection());
				moving = TextPointer (anchor.GetParent(), CONTENT_END, anchor.GetLogicalDirection());
			}
			else {
				TextPointer new_anchor (anchor.GetParent(), anchor.ResolveLocation () + strlen (text), anchor.GetLogicalDirection());
				moving = TextPointer (anchor.GetParent(), anchor.ResolveLocation () + strlen (text), anchor.GetLogicalDirection());
				anchor = new_anchor;
			}

			g_free (new_text);

			if (anchor.CompareTo_np (moving) < 0) {
				start = anchor;
				end = moving;
			}
			else {
				start = moving;
				end = anchor;
			}
		}
		else {
			IDocumentNode *node = anchor.GetParentNode();
			DependencyObjectCollection *children = node->GetDocumentChildren();

			if (!children) {
				// this can happen when anchor is in an InlineUIContainer.
				printf ("NIEX TextSelection.SetText for anchor == InlineUIContainer.\n");
				return;
			}

			Run *r = MoonUnmanagedFactory::CreateRun ();
			r->SetText (text);

			if (children->Is(Type::BLOCK_COLLECTION)) {
				// the node takes Blocks as children, so we need to create a Paragraph first.
				Paragraph *p = MoonUnmanagedFactory::CreateParagraph();
				children->Insert (anchor.GetLocation(), Value (p));
				children = p->GetInlines();
				children->Add (Value (r));
				p->unref ();
			}
			else {
				children->Insert (anchor.GetLocation(), Value (r));
			}

			anchor = TextPointer (r, CONTENT_END, anchor.GetLogicalDirection());
			moving = TextPointer (r, CONTENT_END, anchor.GetLogicalDirection());
			r->unref ();

			if (anchor.CompareTo_np (moving) < 0) {
				start = anchor;
				end = moving;
			}
			else {
				start = moving;
				end = anchor;
			}
		}
	}

	g_free (this->text);
	this->text = NULL;
}