Method showBigTextRoLineNum

src/scintillaeditview.cpp:1346–1391

大文本只读模式下，显示其文本

//大文本只读模式下，显示其文本
void ScintillaEditView::showBigTextRoLineNum(BigTextEditFileMgr* txtFile, int blockIndex)
{

	BlockIndex bi = txtFile->blocks.at(blockIndex);

	int nbDigits = 0;

	if (bi.fileOffset < 0xffffffff)
	{
		nbDigits = INIT_BIG_RO_TEXT_LINE_WIDTH;
	}
	else
	{
		nbDigits = 12;
	}
	char* lineString = new char[17];
	memset(lineString, 0, 17);

	auto pixelWidth = 6 + nbDigits * execute(SCI_TEXTWIDTH, STYLE_LINENUMBER, reinterpret_cast<sptr_t>("8"));
	this->execute(SCI_SETMARGINWIDTHN, SC_BIGTEXT_LINES, pixelWidth);

	int lineNums = this->lines();

	qint64 curLineNum = bi.lineNumStart + 1;//行号从1开始

	int style = STYLE_LINENUMBER;

	for (int i = 0; i < lineNums; ++i)
	{
		memset(lineString, 0, 17);

		if (bi.fileOffset < 0xffffffff)
		{
			sprintf(lineString, "%08lld ", curLineNum+i);
		}
		else
		{
			sprintf(lineString, "%012lld ", curLineNum + i);
		}

		QString num(lineString);
		this->setMarginText(i, num, style);
	}

	delete[]lineString;
}

void ScintillaEditView::bookmarkNext(bool forwardScan)
{