Method InputEnter

GUI/RichTextarea.cpp:1360–1391

Function that adds line break at the cursor position

// Function that adds line break at the cursor position
void TextareaData::InputEnter()
{
	// Increment line count
	lineCount++;
	
	// Insert new line after current and switch to it
	currLine = InsertLineAfter(currLine);

	currLine->data[0].style = currLine->prev->length ? currLine->prev->data[currLine->prev->length-1].style : 0;

	// If line break is in the middle of the line
	if(cursorCharX != currLine->prev->length)
	{
		// Find, how much symbols will move to the next line
		unsigned int diff = currLine->prev->length - cursorCharX;
		// If it is more than the line can handle, extend character buffer
		ExtendLine(currLine, diff);
		// Copy symbols to the new line
		memcpy(currLine->data, &currLine->prev->data[cursorCharX], diff * sizeof(AreaChar));
		// Shrink old
		currLine->prev->length = cursorCharX;
		// Extend new
		currLine->length = diff;
	}
	// Move cursor to the next line
	cursorCharY++;
	cursorCharX = 0;

	// Force redraw on the modified line and all that goes after it
	RECT invalid = { 0, (cursorCharY - shiftCharY - 1) * RichTextarea::charHeight, areaWidth, areaHeight };
	InvalidateRect(areaWnd, &invalid, false);
}

// Windows scrollbar can scroll beyond valid positions
void	TextareaData::ClampShift()