C++ (Cpp) BTextView::UndoState Examples

Example #1

File: PersonWindow.cpp Project: mmadia/Haiku-services-branch

void
PersonWindow::MenusBeginning()
{
	bool enabled = !fView->IsSaved();
	fSave->SetEnabled(enabled);
	fRevert->SetEnabled(enabled);

	bool isRedo = false;
	bool undoEnabled = false;
	bool cutAndCopyEnabled = false;

	BTextView* textView = dynamic_cast<BTextView*>(CurrentFocus());
	if (textView != NULL) {
		undo_state state = textView->UndoState(&isRedo);
		undoEnabled = state != B_UNDO_UNAVAILABLE;

		cutAndCopyEnabled = fView->IsTextSelected();
	}

	if (isRedo)
		fUndo->SetLabel(B_TRANSLATE("Redo"));
	else
		fUndo->SetLabel(B_TRANSLATE("Undo"));

	fUndo->SetEnabled(undoEnabled);
	fCut->SetEnabled(cutAndCopyEnabled);
	fCopy->SetEnabled(cutAndCopyEnabled);

	be_clipboard->Lock();
	fPaste->SetEnabled(be_clipboard->Data()->HasData("text/plain", B_MIME_TYPE));
	be_clipboard->Unlock();
}

Example #2

File: Signature.cpp Project: HaikuArchives/BeMailDaemon

void
TSignatureWindow::MenusBeginning()
{
	int32		finish = 0;
	int32		start = 0;
	BTextView	*text_view;

	fDelete->SetEnabled(fFile);
	fSave->SetEnabled(IsDirty());
	fUndo->SetEnabled(false);		// ***TODO***

	text_view = (BTextView *)fSigView->fName->ChildAt(0);
	if (text_view->IsFocus())
		text_view->GetSelection(&start, &finish);
	else
		fSigView->fTextView->GetSelection(&start, &finish);

	fCut->SetEnabled(start != finish);
	fCopy->SetEnabled(start != finish);

	fNew->SetEnabled(text_view->TextLength() | fSigView->fTextView->TextLength());
	be_clipboard->Lock();
	fPaste->SetEnabled(be_clipboard->Data()->HasData("text/plain", B_MIME_TYPE));
	be_clipboard->Unlock();

	// Undo stuff	
	bool		isRedo = false;
	undo_state	undoState = B_UNDO_UNAVAILABLE;

	BTextView *focusTextView = dynamic_cast<BTextView *>(CurrentFocus());
	if (focusTextView != NULL)
		undoState = focusTextView->UndoState(&isRedo);

	fUndo->SetLabel((isRedo) ? kRedoStrings[undoState] : kUndoStrings[undoState]);
	fUndo->SetEnabled(undoState != B_UNDO_UNAVAILABLE);
}