C++ QTextEdit::find方法代码示例

bool QTextEditProto::find(const QString &exp, int options)
{
  QTextEdit *item = qscriptvalue_cast<QTextEdit*>(thisObject());
  if (item)
    return item->find(exp, (QTextDocument::FindFlag)options);
  return false;
}

void SourceViewer::onClickedSearchNext()
{
	QTextEdit *logTextEdit = getCurrentSourceEdit();
	if(logTextEdit != NULL)
	{
		QTextDocument::FindFlags flags = 0x0;
		if(ui.caseSensitiveCheck->isChecked())
			flags |=  QTextDocument::FindCaseSensitively;

		bool find = logTextEdit->find(ui.searchText->text(), flags);
		if(find == false)
		{
			logTextEdit->moveCursor(QTextCursor::Start);
			logTextEdit->find(ui.searchText->text(), flags);
		}
	}
}

void SourceViewer::onClickedSearchPrev()
{
	QTextEdit *logTextEdit = getCurrentSourceEdit();
	if(logTextEdit != NULL)
	{
		QTextDocument::FindFlags flags = QTextDocument::FindBackward;
		if(ui.caseSensitiveCheck->isChecked())
			flags |=  QTextDocument::FindCaseSensitively;

		bool find = logTextEdit->find(ui.searchText->text(), flags);
		if(find == false)
		{
			logTextEdit->moveCursor(QTextCursor::End);
			logTextEdit->horizontalScrollBar()->setValue(0);
			logTextEdit->find(ui.searchText->text(), flags);
		}
	}
}

void SourceViewer::setSourceText(const QString &key, const QString &name, const QString &searchText, const QByteArray &sourceTextBuffer)
{
	QTextEdit *logTextEdit = NULL;
	QTextEditorContextMap::const_iterator i = logTextWidgetMap_.find(key);
	if(i == logTextWidgetMap_.end())
	{
		// New tab created..
		logTextEdit = new QTextEdit();
		QObject::connect(logTextEdit, SIGNAL(selectionChanged()), this, SLOT(onSelectionChanged()));
		logTextEdit->setReadOnly(true);

		SourceViewContext* ctx = new SourceViewContext();
		ctx->logTextEdit = logTextEdit;
		logTextWidgetMap_.insert(key, ctx);
		ui.tabWidget->insertTab(0, logTextEdit, name);
		ui.tabWidget->setCurrentIndex(0);
	}
	else
	{
		// Already the tab exists.
		logTextEdit = i.value()->logTextEdit;
		int index = ui.tabWidget->indexOf(logTextEdit);
		if(index >= 0)
		{
			ui.tabWidget->setCurrentIndex(index);
		}
	}

	workingHighlightText_ = true;

	ui.searchText->setText(searchText);

	logTextEdit->setText(sourceTextBuffer);

	logTextEdit->setFocus();

	if(searchText.isEmpty() == false) 
	{
		doHighlightText(searchText, ui.caseSensitiveCheck->isChecked());
	
		QTextDocument::FindFlags flags = 0x0;
		if(ui.caseSensitiveCheck->isChecked())
			flags |=  QTextDocument::FindCaseSensitively;

		logTextEdit->moveCursor(QTextCursor::Start);

		while(logTextEdit->find(searchText, flags))
		{
			break;
		}
	}

	workingHighlightText_ = false;
}

/*!

*/
void
DebugMessageWindow::findString( const QString & expr )
{
    // case insentive && no whole word
    QTextDocument::FindFlags flags( M_find_forward_rb->isChecked()
                                    ? 0
                                    : QTextDocument::FindBackward );
    QTextEdit * edit = M_message[ M_tab_widget->currentIndex() ];
    if ( ! edit->find( expr, flags ) )
    {
        if ( M_find_forward_rb->isChecked() )
        {
            edit->moveCursor( QTextCursor::Start );
        }
        else
        {
            edit->moveCursor( QTextCursor::End );
        }

        edit->find( expr, flags );
    }
}

int TextEdit::find(lua_State * L) // ( const QString & exp, QTextDocument::FindFlags options = 0 ) : bool
{
	QTextEdit* obj = ObjectHelper<QTextEdit>::check( L, 1);
	QTextDocument::FindFlags f;
	int fInt = Util::toInt( L, 3 );
	if( (fInt >= 0 && fInt <= 17) )
	{
		f = (QTextDocument::FindFlags) fInt;
		Lua::Util::push( L, obj->find(Lua::Util::toStr( L, 2 ), f ) );
	}
	else
		Lua::Util::error( L, "expecting a valid QTextDocument::FindFlags" );
	return 1;
}

void SourceViewer::doHighlightText(const QString &text, bool caseSensitive)
{
	qDebug() << "doHighlightText : text=" << text;

	workingHighlightText_ = true;
	do
	{
		QTextEdit *logTextEdit = getCurrentSourceEdit();
		if(logTextEdit == NULL)
			break;

		int orgValueVert = logTextEdit->verticalScrollBar()->value();
		int orgValueHor = logTextEdit->horizontalScrollBar()->value();
		QTextCursor orgCursor = logTextEdit->textCursor();
		QTextDocument::FindFlags flags = 0x0;
		if(caseSensitive)
			flags |=  QTextDocument::FindCaseSensitively;

		QList<QTextEdit::ExtraSelection> extraSelections;
		logTextEdit->moveCursor(QTextCursor::Start);

		QColor fgColor = QColor("white");
		QColor bgColor = QColor("#C32438");

		while(logTextEdit->find(text, flags))
		{
			QTextEdit::ExtraSelection extra;
			extra.format.setForeground(fgColor);
			extra.format.setBackground(bgColor);
			extra.cursor = logTextEdit->textCursor();
			extraSelections.append(extra);
		}

		logTextEdit->setExtraSelections(extraSelections);
		logTextEdit->setTextCursor(orgCursor);
		logTextEdit->verticalScrollBar()->setValue(orgValueVert);
		logTextEdit->horizontalScrollBar()->setValue(orgValueHor);
	} while(false);
	workingHighlightText_ = false;
}