polycode-engine/Modules/Contents/UI/Source/PolyUITextInput.cpp

/*
 Copyright (C) 2012 by Ivan Safrin
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:
 
 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 */


#include "PolyUITextInput.h"
#include "PolyConfig.h"
#include "PolyInputEvent.h"
#include "PolyLabel.h"
#include "PolyCoreServices.h"
#include "PolyEventHandler.h"
#include "PolyRenderer.h"

using namespace Polycode;

UIGlobalMenu* UITextInput::globalMenuSingleton = NULL;

void UITextInput::setMenuSingleton(UIGlobalMenu *_globalMenu) {
	globalMenuSingleton = _globalMenu;
}

UITextInput::UITextInput(bool multiLine, Number width, Number height) : UIElement(width, height) {
	this->multiLine = multiLine;
	processInputEvents = true;
	isNumberOnly = false;
	
	didMultilineResize = true;
	actualLineOffset = -1;
	actualCaretPosition = 0;
	
	resizeTimer = 0;
	decoratorOffset = 0;
	lineOffset = -1;
	
	useStrongHinting = false;
	
	draggingSelection = false;
	hasSelection = false;
	doSelectToCaret = false;
	
	lineNumbersEnabled = false;
	
	caretPosition = 0;
	caretImagePosition = 0;

	horizontalPixelScroll = 0;
	horizontalCharacterScroll = 0;
	
	settingText = false;
	isTypingWord = false;
	
	numLines = 0;
	
	setAnchorPoint(0.0, 0.0, 0.0);
	Config *conf = CoreServices::getInstance()->getConfig();	
	
	if(multiLine)
		fontName = conf->getStringValue("Polycode", "uiTextInputFontNameMultiLine");
	else
		fontName = conf->getStringValue("Polycode", "uiTextInputFontName");
	
	if(multiLine)
		fontSize = conf->getNumericValue("Polycode", "uiTextInputFontSizeMultiline");	
	else
		fontSize = conf->getNumericValue("Polycode", "uiTextInputFontSize");
	
	Number rectHeight = height;
	if(!multiLine) {
		rectHeight = fontSize+10;
	} 

	linesContainer = new Entity();	
	linesContainer->processInputEvents = true;
	linesContainer->ownsChildren = true;
	lineSpacing = conf->getNumericValue("Polycode", "textEditLineSpacing");
	
	st = conf->getNumericValue("Polycode", "textBgSkinT");
	sr = conf->getNumericValue("Polycode", "textBgSkinR");
	sb = conf->getNumericValue("Polycode", "textBgSkinB");
	sl = conf->getNumericValue("Polycode", "textBgSkinL");

	textInputOffsetY = conf->getNumericValue("Polycode", "uiTextInputFontOffsetY");
    if(multiLine) {
        textInputOffsetY = 0.0;
    }
    
	padding = conf->getNumericValue("Polycode", "textBgSkinPadding");
	
	textContainer = new UIElement();
	textContainer->ownsChildren = true;

	linesContainer->addChild(textContainer);
	if(multiLine) {
		inputRect = new UIBox(conf->getStringValue("Polycode", "textBgSkinMultiline"),
						  st,sr,sb,sl,
						  width+(padding*2), height+(padding*2));
        inputRect->setBlendingMode(Renderer::BLEND_MODE_NONE);
	} else {
		inputRect = new UIBox(conf->getStringValue("Polycode", "textBgSkin"),
						  st,sr,sb,sl,
						  width+(padding*2), height+(padding*2));	
	}
	
	addChild(inputRect);		
	
	if(multiLine) {
		lineNumberBg = new UIRect(1,1);
		lineNumberBg->setAnchorPoint(-1.0, -1.0, 0.0);
		lineNumberBg->setColor(0.5, 0.5, 0.5, 1.0);
		addChild(lineNumberBg);
		lineNumberBg->visible = false;
		
		lineNumberAnchor = new Entity();
		linesContainer->addChild(lineNumberAnchor);
	} else {
		lineNumberBg = NULL;
		lineNumberAnchor = NULL;
		decoratorOffset = sl/2.0;
	}

	textContainer->setWidth(fabs(this->getWidth() - textContainer->getPosition2D().x - padding));
	textContainer->setHeight(fabs(this->getHeight() - textContainer->getPosition2D().y));
	textContainer->setPosition(padding + decoratorOffset, padding + textInputOffsetY);
	
	inputRect->addEventListener(this, InputEvent::EVENT_MOUSEDOWN);
	inputRect->addEventListener(this, InputEvent::EVENT_MOUSEUP);	
	inputRect->addEventListener(this, InputEvent::EVENT_MOUSEWHEEL_DOWN);
	inputRect->addEventListener(this, InputEvent::EVENT_MOUSEWHEEL_UP);	
	inputRect->addEventListener(this, InputEvent::EVENT_DOUBLECLICK);		
	inputRect->addEventListener(this, InputEvent::EVENT_MOUSEMOVE);		
	inputRect->addEventListener(this, InputEvent::EVENT_MOUSEOVER);
	inputRect->addEventListener(this, InputEvent::EVENT_MOUSEOUT);
	inputRect->processInputEvents = true;
	inputRect->setAnchorPoint(-1.0, -1.0, 0.0);
	
	selectionColor = Color(181.0f/255.0f, 213.0f/255.0f, 255.0f/255.0f, 1.0f);
	
	selectorRectTop = new UIRect(1,1);
//	selectorRectTop->setAnchorPoint(-1.0, -1.0, 0.0);
	selectorRectTop->setColor(181.0f/255.0f, 213.0f/255.0f, 255.0f/255.0f, 1);
	selectorRectTop->visible = false;
	textContainer->addChild(selectorRectTop);

	selectorRectMiddle = new UIRect(1,1);
//	selectorRectMiddle->setAnchorPoint(-1.0, -1.0, 0.0);	
	selectorRectMiddle->setColor(181.0f/255.0f, 213.0f/255.0f, 255.0f/255.0f, 1);
	selectorRectMiddle->visible = false;
	textContainer->addChild(selectorRectMiddle);

	selectorRectBottom = new UIRect(1,1);
//	selectorRectBottom->setAnchorPoint(-1.0, -1.0, 0.0);	
	selectorRectBottom->setColor(181.0f/255.0f, 213.0f/255.0f, 255.0f/255.0f, 1);
	selectorRectBottom->visible = false;
	textContainer->addChild(selectorRectBottom);
		
	
	blinkerRect = new UIRect(1, fontSize+2);
	blinkerRect->setAnchorPoint(-1.0, -1.0, 0.0);
	blinkerRect->setColor(0,0,0,1);
	textContainer->addChild(blinkerRect);
	blinkerRect->visible = false;
	blinkerRect->setPosition(-horizontalPixelScroll,3);
	
	blinkTimer = new Timer(true, 500);
	blinkTimer->addEventListener(this, Timer::EVENT_TRIGGER);

	focusable = true;
	setWidth(width);
	setHeight(rectHeight);
	setHitbox(width, rectHeight);
	
	scrollContainer = NULL;
	if(multiLine) {
		scrollContainer = new UIScrollContainer(linesContainer, false, true, width, height);
		scrollContainer->addEventListener(this, Event::CHANGE_EVENT);
		addChild(scrollContainer);
	} else {
		addChild(linesContainer);
		textContainer->enableScissor = true;
	}
		
	undoStateIndex = 0;
	maxRedoIndex = 0;
	
	syntaxHighliter = NULL;
	
	textColor = Color(0.0,0.0,0.0,1.0);

	currentBufferLines = 0;
	neededBufferLines = 1;
	checkBufferLines();

	insertLine();
	updateCaretPosition();
	
	core = CoreServices::getInstance()->getCore();
	core->addEventListener(this, Core::EVENT_COPY);
	core->addEventListener(this, Core::EVENT_PASTE);
	core->addEventListener(this, Core::EVENT_CUT);
	core->addEventListener(this, Core::EVENT_UNDO);
	core->addEventListener(this, Core::EVENT_REDO);
	core->addEventListener(this, Core::EVENT_SELECT_ALL);
	indentSpacing = 4;
	indentType = INDENT_TAB;
	
	core->getInput()->addEventListener(this, InputEvent::EVENT_KEYDOWN);
}

void UITextInput::checkBufferLines() {

	if(neededBufferLines < currentBufferLines) 
		return;
	
	int aaMode = Label::ANTIALIAS_FULL;
	if(useStrongHinting) {
		aaMode = Label::ANTIALIAS_STRONG;
	}

	for(int i=0; i < neededBufferLines - currentBufferLines; i++) {
		if(multiLine) {
			SceneLabel *newNumberLine = new SceneLabel(L"", fontSize, fontName, aaMode);
            newNumberLine->setBlendingMode(Renderer::BLEND_MODE_NORMAL);
			newNumberLine->color = lineNumberColor;
			newNumberLine->positionAtBaseline = true;
			lineNumberAnchor->addChild(newNumberLine);
			numberLines.push_back(newNumberLine);		
			
			if(!lineNumbersEnabled) {
				newNumberLine->visible = false;
			}
		}
	
		SceneLabel *newLine = new SceneLabel(L"", fontSize, fontName, aaMode);
        newLine->setBlendingMode(Renderer::BLEND_MODE_NORMAL);
		newLine->positionAtBaseline = true;
		newLine->color = textColor;
		lineHeight = newLine->getHeight();
		textContainer->addChild(newLine);
		bufferLines.push_back(newLine);
	}
	
	currentBufferLines = neededBufferLines;
}

void UITextInput::setNumberOnly(bool val) {
	isNumberOnly = val;
}

void UITextInput::clearSelection() {
	hasSelection = false;
	selectorRectTop->visible = false;	
	selectorRectMiddle->visible = false;	
	selectorRectBottom->visible = false;		
}


void UITextInput::setSelection(int lineStart, int lineEnd, int colStart, int colEnd) {
	if(colStart < 0)
		colStart = 0;
	if(colEnd < 0)
		colEnd = 0;

	clearSelection();

	_setSelectionColor(selectionColor);

	if(lineStart == lineEnd && colStart == colEnd) {
		return;
	}

	if(lineStart == actualLineOffset) {
		selectionLine = lineEnd;
	} else {
		selectionLine = lineStart;	
	}

	if(colStart == actualCaretPosition) {
		selectionCaretPosition = colEnd;
	} else {
		selectionCaretPosition = colStart;
	}

	if(lineStart > lineEnd) {
		int tmp = lineStart;
		lineStart = lineEnd;
		lineEnd = tmp;
		
		tmp = colStart;
		colStart = colEnd;
		colEnd = tmp;		
	}	
	
	if(colStart > colEnd && lineStart == lineEnd) {
		int tmp = colStart;
		colStart = colEnd;
		colEnd = tmp;
	}
	
	if(lineStart > lines.size()-1) {
		return;	
	}
	
	String topLine = lines[lineStart].text;
	
	if(colStart+1 > topLine.length()) {
		colStart = topLine.length();
	}	

	hasSelection = true;
	
	selectionTop = lineStart;
	selectionBottom = lineEnd;
	selectionL = colStart;
	selectionR = colEnd;
	
	if(!settingText) {
		updateSelectionRects();
	}
}

void UITextInput::updateSelectionRects() {

	int lineStart;
	int lineEnd;
	int colStart;
	int colEnd;
	
	convertActualToOffset(selectionTop, selectionL, &lineStart, &colStart);
	convertActualToOffset(selectionBottom, selectionR, &lineEnd, &colEnd);
	
							
	String topLine = wordWrapLines[lineStart].text;
			
	Number fColEnd  = colEnd;
	
	if(colEnd > topLine.length() || lineStart != lineEnd)
		fColEnd = topLine.length();

	Number topSize, topHeight, topX;
	
	selectorRectTop->visible = true;
	
	topSize = bufferLines[0]->getTextWidthForString(topLine.substr(colStart,fColEnd-colStart));
	topHeight = lineHeight+lineSpacing;
	if(colStart >= 0) {
		topX = bufferLines[0]->getTextWidthForString(topLine.substr(0,colStart));
	} else {
		topX = 0;
	}
	
	if(topSize < 4) {
		topSize = 4;
	}
	selectorRectTop->Resize(topSize, topHeight);
	selectorRectTop->setPosition(topX - horizontalPixelScroll, lineStart * (lineHeight+lineSpacing));
	
	if(lineEnd > lineStart && lineEnd < wordWrapLines.size()) {
		String bottomLine = wordWrapLines[lineEnd].text;
		selectorRectBottom->visible = true;		
		Number bottomSize = bufferLines[0]->getTextWidthForString(bottomLine.substr(0,colEnd)) ; 
		if(bottomSize < 0)
			bottomSize = this->getWidth()-padding;
		Number bottomHeight = lineHeight+lineSpacing;
		
		if(bottomSize < 4) {
			bottomSize = 4;
		}

		selectorRectBottom->Resize(bottomSize, bottomHeight);
		selectorRectBottom->setPosition(-horizontalPixelScroll, lineEnd * (lineHeight+lineSpacing));
		
		if(lineEnd != lineStart+1) {
			// need filler
			selectorRectMiddle->visible = true;		
			Number midSize = this->getWidth()-padding;
			Number midHeight = 0;			
			for(int i=lineStart+1; i < lineEnd;i++) {
				midHeight += lineHeight+lineSpacing;
			}
			selectorRectMiddle->Resize(midSize, midHeight);
			selectorRectMiddle->setPosition(- horizontalPixelScroll, ((lineStart+1) * (lineHeight+lineSpacing)));	
			
		}
		
	}
}

void UITextInput::deleteSelection() {
	if(selectionTop == selectionBottom) {
		String ctext = lines[selectionTop].text;
		String newText = ctext.substr(0, selectionL);
		int rside = selectionR;
		if(rside > ctext.length()-1)
			rside = ctext.length() - 1;
		newText += ctext.substr(rside,ctext.length() - selectionR); 
		lines[selectionTop].text = newText;
	} else {
		
		String ctext = lines[selectionTop].text;
		String newText = ctext.substr(0, selectionL);
		lines[selectionTop].text = newText;

		ctext = lines[selectionBottom].text;
		
		int rside = selectionR;
		if(rside > ctext.length()-1)
			rside = ctext.length() - 1;
		newText = ctext.substr(rside,ctext.length() - selectionR); 
		
		actualLineOffset = selectionTop;		
		actualCaretPosition = lines[actualLineOffset].text.length();
		setOffsetToActual();		
		updateCaretPosition();
		
		lines[actualLineOffset].text =  lines[actualLineOffset].text + newText;
		
		removeLines(selectionTop+1, selectionBottom);
		
			
	}
	clearSelection();
	actualCaretPosition = selectionL;
	updateCaretPosition();
	
	setActualLineOffset();
	
	changedText(actualLineOffset,actualLineOffset);
}

void UITextInput::applyTokenOverride(int lineIndex, SyntaxHighlightToken overrideToken) {
	if(overrideToken.overrideType == SyntaxHighlightToken::TOKEN_TYPE_NO_OVERRIDE) {
	
	
		bool previousLineInBlockOverride = false;
		if(lineIndex > 0) {		
			if(lines[lineIndex-1].blockOverrideToken.overrideType == SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_LINE ||  lines[lineIndex-1].blockOverrideToken.overrideType == SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_START) {
				previousLineInBlockOverride = true;
			}
		}	
	
		if(lines[lineIndex].blockOverrideToken.overrideType == SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_START && !previousLineInBlockOverride) {
			for(int l=lineIndex; l < lines.size(); l++) {

				if(lines[l].blockOverrideToken.overrideType == SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_START && l != lineIndex) {
					return;
				}
			
				if(lines[l].blockOverrideToken.overrideType != SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_END) {
				lines[l].blockOverrideToken.overrideType = SyntaxHighlightToken::TOKEN_TYPE_NO_OVERRIDE;
				int _lineOffset = lines[l].wordWrapLineIndex;
				while(wordWrapLines[_lineOffset].actualLineNumber == l && _lineOffset < wordWrapLines.size()) {
					wordWrapLines[_lineOffset].blockOverrideToken = lines[l].blockOverrideToken;
					wordWrapLines[_lineOffset].dirty = true;
					_lineOffset++;
				}
				} else {
					changedText(l,l,false);
				}
			}		
		}

		
		if(lines[lineIndex].blockOverrideToken.overrideType == SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_END) {
			if(previousLineInBlockOverride) {
			for(int l=lineIndex; l < lines.size(); l++) {
			
				if((lines[l].blockOverrideToken.overrideType == SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_END || lines[l].blockOverrideToken.overrideType == SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_START) && l != lineIndex) {
				
					if(lines[l].blockOverrideToken.overrideType == SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_END) {
						changedText(l,l,false);
					}								
					return;
				}			
			
				lines[l].blockOverrideToken.overrideType = SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_LINE;
				lines[l].blockOverrideToken.color = lines[lineIndex-1].blockOverrideToken.color;
				int _lineOffset = lines[l].wordWrapLineIndex;
				while(wordWrapLines[_lineOffset].actualLineNumber == l && _lineOffset < wordWrapLines.size()) {
					wordWrapLines[_lineOffset].blockOverrideToken = lines[l].blockOverrideToken;
					wordWrapLines[_lineOffset].dirty = true;
					_lineOffset++;
				}
			}
			} else {
				lines[lineIndex].blockOverrideToken.overrideType = SyntaxHighlightToken::TOKEN_TYPE_NO_OVERRIDE;
			}
		}


	}
	
		if(overrideToken.overrideType == SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_START) {
			for(int l=lineIndex; l < lines.size(); l++) {
						
				if((lines[l].blockOverrideToken.overrideType == SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_END || lines[l].blockOverrideToken.overrideType == SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_START) && l != lineIndex) {
				
					if(lines[l].blockOverrideToken.overrideType == SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_END) {
						changedText(l,l,false);
					}
					return;
				}
				
				lines[l].blockOverrideToken = overrideToken;
				if(l != lineIndex) {					
					lines[l].blockOverrideToken.overrideType = SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_LINE;
				}				
				int _lineOffset = lines[l].wordWrapLineIndex;
				while(wordWrapLines[_lineOffset].actualLineNumber == l && _lineOffset < wordWrapLines.size()) {
					wordWrapLines[_lineOffset].blockOverrideToken = lines[l].blockOverrideToken;
					wordWrapLines[_lineOffset].dirty = true;
					_lineOffset++;
				}
			}
		}
		
		if(overrideToken.overrideType == SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_END) {
			for(int l=lineIndex; l < lines.size(); l++) {
			
				if(lines[l].blockOverrideToken.overrideType != SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_END || l == lineIndex) {
				
				if((lines[l].blockOverrideToken.overrideType == SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_START) && l != lineIndex) {
					return;
				}				

				lines[l].blockOverrideToken = overrideToken;
				if(l != lineIndex) {					
					lines[l].blockOverrideToken.overrideType = SyntaxHighlightToken::TOKEN_TYPE_NO_OVERRIDE;
				}				
				
				int _lineOffset = lines[l].wordWrapLineIndex;
				while(wordWrapLines[_lineOffset].actualLineNumber == l && _lineOffset < wordWrapLines.size()) {
					wordWrapLines[_lineOffset].blockOverrideToken = lines[l].blockOverrideToken;
					wordWrapLines[_lineOffset].dirty = true;
					_lineOffset++;
				}
				} else {
					if(lines[l].blockOverrideToken.overrideType == SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_END) {
						changedText(l,l,false);
					}												
				}
			}
		}	
}

void UITextInput::applyBlockOverrides() {
	for(int i=0; i < wordWrapLines.size(); i++) {
		wordWrapLines[i].blockOverrideToken.overrideType = SyntaxHighlightToken::TOKEN_TYPE_NO_OVERRIDE;	
	}

	for(int i=0; i < lines.size(); i++) {
		if(lines[i].blockOverrideToken.overrideType != SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_START && lines[i].blockOverrideToken.overrideType != SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_END) {		
		lines[i].blockOverrideToken.overrideType = SyntaxHighlightToken::TOKEN_TYPE_NO_OVERRIDE;		
		}
	}
	
	for(int i=0; i < lines.size(); i++) {
		if(lines[i].blockOverrideToken.overrideType == SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_START || lines[i].blockOverrideToken.overrideType == SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_END) {
				applyTokenOverride(i, lines[i].blockOverrideToken);
		}
	}
}

void UITextInput::applySyntaxFormatting(int startLine, int endLine) {

	if(syntaxHighliter && multiLine) {
			
		if(startLine < 0)
			startLine = 0;
		
		if(endLine > lines.size())
			endLine = lines.size();
			
		String totalText = L"";
		for(int i=startLine; i < endLine+1; i++) {
			totalText += lines[i].text;
			if(i < endLine)
				totalText += L"\n";
		}		

	SyntaxHighlightToken _blockOverrideToken;
	if(startLine > 0) {
		_blockOverrideToken = lines[startLine-1].blockOverrideToken;
	}
	
	std::vector<SyntaxHighlightToken> tokens = syntaxHighliter->parseText(totalText, _blockOverrideToken);	
	
	int lineIndex = startLine;
	lines[lineIndex].colorInfo.colors.clear();
	int rangeStart = 0;
	int rangeEnd = 0;
	
	
	SyntaxHighlightToken _overrideToken;
			
	for(int i=0; i < tokens.size(); i++) {

		if(tokens[i].overrideType == SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_START || tokens[i].overrideType == SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_END) {
			_overrideToken = tokens[i];
		}
	
		if(tokens[i].text == "\n") {
			applyTokenOverride(lineIndex, _overrideToken);
			_overrideToken.overrideType = SyntaxHighlightToken::TOKEN_TYPE_NO_OVERRIDE;
			lineIndex++;
			if(lineIndex < lines.size() && i < tokens.size()-1) {
				lines[lineIndex].colorInfo.colors.clear();
			}
			rangeStart = 0;
			rangeEnd = 0;
		} else {			
			if(lineIndex < lines.size()) {
				int textLength = tokens[i].text.length();
				if(tokens[i].text.length() > 1) {
					rangeEnd = rangeStart + textLength-1;
					lines[lineIndex].colorInfo.colors.push_back(LineColorData(tokens[i].color, rangeStart, rangeEnd));
					rangeStart = rangeStart + textLength; 
				} else {
					rangeEnd = rangeStart;
					lines[lineIndex].colorInfo.colors.push_back(LineColorData(tokens[i].color, rangeStart, rangeEnd));
					rangeStart++;
				}				
			}
		}
	}
	
	}

//	readjustBuffer(startLine, endLine);	
}

void UITextInput::changedText(int lineStart, int lineEnd, bool sendChangeEvent) {
	if(lineStart <0) {
		lineStart = 0;
	}
	
	if(lineEnd > lines.size()-1) {
		lineEnd = lines.size()-1;
	}

	if(settingText)
		return;

	applySyntaxFormatting(lineStart, lineEnd);	
	updateWordWrap(lineStart, lineEnd);
		
	if(sendChangeEvent) {
		dispatchEvent(new UIEvent(), UIEvent::CHANGE_EVENT);	
	}
}

void UITextInput::setSyntaxHighlighter(UITextInputSyntaxHighlighter *syntaxHighliter) {
	this->syntaxHighliter = syntaxHighliter;
}

void UITextInput::doMultilineResize() {

	if(multiLine) {
		int bufferOffset = -linesContainer->getPosition().y/ ( lineHeight+lineSpacing);	
		
		int realLineOffset = -1;
		if(bufferOffset > 0 && bufferOffset < wordWrapLines.size()) {
			realLineOffset = wordWrapLines[bufferOffset].actualLineNumber;
		}
		
		if(getWidth() != lastResizeWidth) {	
			updateWordWrap(0, lines.size()-1);
		}
		
		if(realLineOffset > -1 && realLineOffset < lines.size()) {
			showLine(realLineOffset, true);
		}
		renumberLines();
		restructLines();		
		readjustBuffer();
		if(lineNumbersEnabled) {
			lineNumberBg->Resize(decoratorOffset, getHeight());
		}
	}
	
	lastResizeWidth = getWidth();
		
	didMultilineResize = true;
	
	if(hasSelection) {
		updateSelectionRects();
	}
}

void UITextInput::Resize(Number width, Number height) {

	resizeTimer = 0;
	didMultilineResize = false;
	
	inputRect->resizeBox(width, height);
	setWidth(width);
	setHeight(height);
	matrixDirty = true;	
	
	if(multiLine) {
		inputRect->setHitbox(width - scrollContainer->getVScrollWidth(), height);		
		neededBufferLines = (height / ( lineHeight+lineSpacing)) + 1;
		checkBufferLines();
		renumberLines();
		readjustBuffer();
		if(lineNumbersEnabled) {
			lineNumberBg->Resize(decoratorOffset, height);
		}		
	}
	
	if(scrollContainer) {
		scrollContainer->Resize(width, height);
	}
	
	textContainer->setWidth(fabs(this->getWidth() - textContainer->getPosition2D().x - padding));
	textContainer->setHeight(fabs(this->getHeight() - textContainer->getPosition2D().y));
	textContainer->setPosition(padding + decoratorOffset, padding + textInputOffsetY);
}

int UITextInput::insertLine(String lineText) {
	
	numLines++;	
		
		String newText = lineText;
		if(lines.size() > 0 && !settingText) {
			String ctext = lines[actualLineOffset].text;
			String text2 = ctext.substr(actualCaretPosition, ctext.length()-actualCaretPosition);
			ctext = ctext.substr(0,actualCaretPosition);
			lines[actualLineOffset].text = ctext;
			newText = newText+text2;
			actualCaretPosition=0;
			caretPosition = 0;
		}		
		
		vector<LineInfo>::iterator it;
						
		lineOffset = lineOffset + 1;
		actualLineOffset = actualLineOffset + 1;
	
		if(actualLineOffset >= lines.size()) {
			it = lines.end();
		} else {
			it = lines.begin() + actualLineOffset;
		}
		
		SyntaxHighlightToken _overrideToken;
		
		if(actualLineOffset > 0) {
			if(lines[actualLineOffset-1].blockOverrideToken.overrideType != SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_START && lines[actualLineOffset-1].blockOverrideToken.overrideType != SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_END) { 
				_overrideToken = lines[actualLineOffset-1].blockOverrideToken;
			} else if(lines[actualLineOffset-1].blockOverrideToken.overrideType == SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_START) {
				_overrideToken = lines[actualLineOffset-1].blockOverrideToken;
				_overrideToken.overrideType = SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_LINE;
			}
		}
		
		LineInfo info;
		info.text = newText;
		info.blockOverrideToken = _overrideToken;
		lines.insert(it,info);
		
		WordWrapLine line;		
		line.text = info.text;
		line.isWordWrap = false;
		line.blockOverrideToken = _overrideToken;
		line.actualLineNumber = actualLineOffset+1;
		lines[actualLineOffset].wordWrapLineIndex = lineOffset;
		line.colorInfo = lines[actualLineOffset].colorInfo;
		
		vector<WordWrapLine>::iterator wit;
		wit = wordWrapLines.begin() + lineOffset;
		wordWrapLines.insert(wit,line);


		for(int i=actualLineOffset+1; i < lines.size(); i++) {
			lines[i].wordWrapLineIndex += 1;
		}
		
		for(int i=lineOffset+1; i < wordWrapLines.size(); i++) {
			wordWrapLines[i].actualLineNumber += 1;
			wordWrapLines[i].dirty = true;
		}
		
		if(!settingText) {
		
		restructLines();
		changedText(actualLineOffset-1, actualLineOffset);		
		}		
	return 1;	
}

void UITextInput::enableLineNumbers(bool val) {
	lineNumbersEnabled = val;
	lineNumberBg->visible = lineNumbersEnabled;
	restructLines();
}

void UITextInput::renumberLines() {
	if(!multiLine)
		return;
	
	int totalLineNumber = lines.size();
	if(currentBufferLines > lines.size()) {
		totalLineNumber = currentBufferLines;
	}
		
	decoratorOffset = 0;	
	if(multiLine) {
		if(lineNumbersEnabled) {
			decoratorOffset = 15;
			if(totalLineNumber > 9) {
				decoratorOffset = 25;
			}
			if(totalLineNumber > 99) {
				decoratorOffset = 35;
			}			
			if(totalLineNumber > 999) {
				decoratorOffset = 45;
			}						
			if(totalLineNumber > 9999) {
				decoratorOffset = 55;
			}									
		}
	}
	
	lineNumberAnchor->setPositionX(padding+decoratorOffset - 10);

	// Update the position and width of the text accordingly.
	textContainer->setPosition(decoratorOffset + padding, padding);
	textContainer->setWidth(fabs(this->getWidth() - textContainer->getPosition2D().x - padding));
	textContainer->setHeight(fabs(this->getHeight() - textContainer->getPosition2D().y - padding));
	textContainer->scissorBox.setRect(textContainer->getPosition2D().x, textContainer->getPosition2D().y, textContainer->getWidth(), textContainer->getHeight()+padding);
}

void UITextInput::restructLines() {

	for(int i=0; i < bufferLines.size(); i++) {
		bufferLines[i]->setPosition(0, (i*(lineHeight+lineSpacing)),0.0f);
	}
	
	if(multiLine && lineNumbersEnabled) {
		lineNumberBg->Resize(decoratorOffset, getHeight());
	}
	
	if(scrollContainer) {
		scrollContainer->setContentSize(getWidth(),  (((wordWrapLines.size()+1) * ((lineHeight+lineSpacing)))) + padding);
	}	
	
	if(multiLine) {
		inputRect->setHitbox(getWidth() - scrollContainer->getVScrollWidth(), getHeight());
	}	
	
}

void UITextInput::setCaretPosition(int position) {
	if(position >= 0 && position < lines[lineOffset].text.length()) {
		caretPosition = position;
		updateCaretPosition();		
	}
}

void UITextInput::setText(String text, bool sendChangeEvent) {
	if(!multiLine) {
		lines[lineOffset].text = text;
		horizontalCharacterScroll = 0;
		horizontalPixelScroll = 0;
		actualCaretPosition = text.length();
		clearSelection();				
		changedText(0, 0);
		updateCaretPosition();		
	} else {
		selectAll();
		insertText(text, false);
		clearSelection();
		changedText(0, lines.size()-1, false);
//		wordWrapLines.clear();
		doMultilineResize();
		applyBlockOverrides();
	}
}

void UITextInput::onLoseFocus() {
	blinkerRect->visible  = false;
	clearSelection();
}

String UITextInput::getText() {
	
	if(!multiLine) {
		return lines[0].text;
	} else {
		String totalText = L"";
		for(int i=0; i < lines.size(); i++) {
				totalText += lines[i].text;
				if(i < lines.size()-1)
					totalText += L"\n";
		}	
		return totalText;
	}
}

void UITextInput::convertOffsetToActual(int lineOffset, int caretPosition, int *actualCaretPosition) {
	int actualLineOffset = wordWrapLines[lineOffset].actualLineNumber;

	if(wordWrapLines[lineOffset].isWordWrap == true) {
		int lineIndex = lineOffset;
		int totalActualCaretPosition = caretPosition - wordWrapLines[lineOffset].lineStart;		
		while(wordWrapLines[lineIndex].isWordWrap == true && lineIndex >= 0) {
			lineIndex--;
			totalActualCaretPosition += wordWrapLines[lineIndex].text.size() - wordWrapLines[lineIndex].lineStart;			
		}
		*actualCaretPosition = totalActualCaretPosition;
	} else {
		*actualCaretPosition = caretPosition;
	}
	
	if((*actualCaretPosition) > lines[actualLineOffset].text.size()) {
		*actualCaretPosition = lines[actualLineOffset].text.size();
	}


}


void UITextInput::setActualToCaret() {
	convertOffsetToActual(lineOffset, caretPosition, &actualCaretPosition);
}

void UITextInput::convertActualToOffset(int actualLineOffset, int actualCaretPosition, int *lineOffset, int *caretPosition) {
	*lineOffset = lines[actualLineOffset].wordWrapLineIndex;
				
	int totalTextWidth = wordWrapLines[(*lineOffset)].text.size() - wordWrapLines[(*lineOffset)].lineStart;

	*caretPosition = actualCaretPosition;
	
	while(actualCaretPosition > totalTextWidth) {
		*caretPosition -= (wordWrapLines[(*lineOffset)].text.size() - wordWrapLines[(*lineOffset)].lineStart);
		(*lineOffset)++;
		if((*lineOffset) > wordWrapLines.size()-1) {
			(*lineOffset) = wordWrapLines.size()-1;
			break;
		}
		totalTextWidth += wordWrapLines[(*lineOffset)].text.size() - wordWrapLines[(*lineOffset)].lineStart;
	}
	*caretPosition += wordWrapLines[(*lineOffset)].lineStart;
}


void UITextInput::setOffsetToActual() {
	convertActualToOffset(actualLineOffset, actualCaretPosition, &lineOffset, &caretPosition);	
}

void UITextInput::updateCaretPosition() {
	// If this assertion fails, you likely called the function in the wrong
	// place in the constructor.	
	assert(bufferLines.size() && wordWrapLines.size());


	setOffsetToActual();


	if(lineOffset > wordWrapLines.size()-1) {
		lineOffset = wordWrapLines.size()-1;
		setActualLineOffset();
	}

	caretImagePosition = 0;
	if(caretPosition == 0) {
		caretImagePosition = 0;
	} else if(caretPosition > wordWrapLines[lineOffset].text.length()) {
		caretPosition = wordWrapLines[lineOffset].text.length();
		String caretSubString = wordWrapLines[lineOffset].text.substr(0,caretPosition);
		caretImagePosition = bufferLines[0]->getTextWidthForString(caretSubString);
	} else {
		String caretSubString = wordWrapLines[lineOffset].text.substr(0,caretPosition);
		caretImagePosition = bufferLines[0]->getTextWidthForString(caretSubString);
	}
	
	if(!hasSelection) {
		blinkerRect->visible  = true;
	}
	
	blinkTimer->Reset();
	
	if(doSelectToCaret) {
		doSelectToCaret = false;
	}

	if(!multiLine) {
		// Make sure the new caret position is visible.

		// Try scrolling left.
		while(caretImagePosition <= horizontalPixelScroll && horizontalCharacterScroll > 0) {
			horizontalCharacterScroll--;

			// Update pixel scroll from new character scroll.
			String subString = wordWrapLines[0].text.substr(0,horizontalCharacterScroll);
			horizontalPixelScroll = bufferLines[0]->getTextWidthForString(subString);
		}

		// Try scrolling right.
		while(caretImagePosition + blinkerRect->getWidth() > horizontalPixelScroll + textContainer->getWidth()) {
			horizontalCharacterScroll++;

			// Update pixel scroll from new character scroll.
			String subString = wordWrapLines[0].text.substr(0,horizontalCharacterScroll);
			horizontalPixelScroll = bufferLines[0]->getTextWidthForString(subString);
		}

		bufferLines[0]->setPosition(-horizontalPixelScroll, 0);
	}
	
	blinkerRect->setPosition(caretImagePosition + 1 -horizontalPixelScroll, (lineOffset * ( lineHeight+lineSpacing)));	
/*	
	if(multiLine) {	
		if(linesContainer->getPosition().y + currentLine->getPosition2D().y < 0.0) {
			scrollContainer->scrollVertical(-(lineHeight+lineSpacing+padding)/(scrollContainer->getContentSize().y));

		} else if(linesContainer->getPosition().y + currentLine->getPosition2D().y > scrollContainer->getHeight()) {
		scrollContainer->scrollVertical((lineHeight+lineSpacing+padding)/(scrollContainer->getContentSize().y));

		}
	}
	*/
}

int UITextInput::lineOffsetToActualLineOffset(int lineOffset) {
	if(lineOffset < wordWrapLines.size()) {
		return wordWrapLines[lineOffset].actualLineNumber;
	} else {
		return 0;
	}
}

void UITextInput::setActualLineOffset() {
	actualLineOffset = lineOffsetToActualLineOffset(lineOffset);	
}

void UITextInput::dragSelectionTo(Number x, Number y) {
	x -= (padding * 2.0) + decoratorOffset;
	y -= padding;
	int lineOffset = y  / (lineHeight+lineSpacing);
	if(lineOffset > wordWrapLines.size()-1)
		lineOffset = wordWrapLines.size()-1;
	
	String selectToLine = wordWrapLines[lineOffset].text;
	
	int len = selectToLine.length();
	Number slen = 0;
	int caretPosition = bufferLines[0]->getTextWidthForString(selectToLine.substr(0,len)) - horizontalPixelScroll;
	for(int i=0; i < len; i++) {
		slen = bufferLines[0]->getTextWidthForString(selectToLine.substr(0,i)) - horizontalPixelScroll;
		if(slen > x) {
			caretPosition = i;
			break;
		}
	}
	if(x > slen)
		caretPosition = len;
			
	if(caretPosition < 0)
		caretPosition = 0;		

	int newActualCaret;
	convertOffsetToActual(lineOffset, caretPosition, &newActualCaret);

	setSelection(this->actualLineOffset, wordWrapLines[lineOffset].actualLineNumber, this->actualCaretPosition, newActualCaret);
		
	if(lineOffset > this->lineOffset) {	
		lineOffset += 1;
		if(linesContainer->getPosition().y + (lineOffset*(lineHeight+lineSpacing)+padding) > scrollContainer->getHeight()-lineHeight-lineSpacing) {
					scrollContainer->setScrollValue(0.0, (((((lineOffset) * ((lineHeight+lineSpacing)))) + padding-(scrollContainer->getHeight()-lineHeight-lineSpacing))/(scrollContainer->getContentSize().y-scrollContainer->getHeight())));
		}
	} else {
		if(lineOffset > 0) {
			lineOffset -= 1;
		}
		if(linesContainer->getPosition().y + (lineOffset*(lineHeight+lineSpacing)+padding) < 0.0) {
			scrollContainer->setScrollValue(0.0, ((((lineOffset) * ((lineHeight+lineSpacing)))) + padding)/(scrollContainer->getContentSize().y-scrollContainer->getHeight()));
		}		
	}
	
}

int UITextInput::caretSkipWordBack(int caretLine, int caretPosition) {
	for(int i=caretPosition; i > 0; i--) {
		String bit = lines[caretLine].text.substr(i,1);
		char chr = ((char*)bit.c_str())[0]; 		
		if(!isNumberOrCharacter(chr) && i < caretPosition-1) {
			return i+1;
		}
	}	
	return 0;
}

int UITextInput::caretSkipWordForward(int caretLine, int caretPosition) {
	int len = lines[caretLine].text.length();
	for(int i=caretPosition; i < len; i++) {
		String bit = lines[caretLine].text.substr(i,1);
		char chr = ((char*)bit.c_str())[0]; 
		if(!isNumberOrCharacter(chr) && i > caretPosition) {
			return i;
		}
	}
	return lines[caretLine].text.length();	
}

void UITextInput::selectWordAtCaret() {

	actualCaretPosition = caretSkipWordBack(actualLineOffset,actualCaretPosition);
	setOffsetToActual();
	clearSelection();			
	updateCaretPosition();
	
	setSelection(actualLineOffset, actualLineOffset, actualCaretPosition, caretSkipWordForward(actualLineOffset, actualCaretPosition));					

	updateCaretPosition();	
}

void UITextInput::replaceAll(String what, String withWhat) {
	for(int i=0; i < lines.size(); i++) {
		lines[i].text = lines[i].text.replace(what, withWhat);
		changedText(i,i);
	}
}

std::vector<FindMatch> UITextInput::getFindMatches(String stringToFind) {
	std::vector<FindMatch> findMatches;
	
	for(int i=0; i < lines.size(); i++) {
		String lineText = lines[i].text;
		
		int offset = 0;				
		int retVal = -1;
		do {
			retVal = lineText.find(stringToFind, offset);
			if(retVal != -1) {
				FindMatch match;
				match.lineNumber = i;
				match.caretStart = retVal;
				match.caretEnd = retVal + stringToFind.length();
				findMatches.push_back(match);		
				offset = retVal + stringToFind.length();
			}			
		} while(retVal != -1);		
	}
	return findMatches;
}

void UITextInput::findString(String stringToFind, bool replace, String replaceString) {

	clearSelection();
	findMatches.clear();		
	findMatches = getFindMatches(stringToFind);
		
	if(findMatches.size() > 0) {

		if(replace) {
			FindMatch match = findMatches[findIndex];
			String oldText = lines[match.lineNumber].text;
			String newText = oldText.substr(0,match.caretStart) + replaceString + oldText.substr(match.caretEnd);
			
			lines[match.lineNumber].text = newText;
			findMatches[findIndex].caretEnd = findMatches[findIndex].caretStart + replaceString.length();
			changedText(match.lineNumber, match.lineNumber);
		}
	
		findIndex = 0;
		findCurrent();
	}
}

void UITextInput::findNext() {
	if(findMatches.size() == 0)
		return;
	findIndex++;
	if(findIndex == findMatches.size()) {
		findIndex = 0;
	}
	findCurrent();
}

void UITextInput::findPrevious() {
	if(findMatches.size() == 0)
		return;

	findIndex--;
	if(findIndex < 0) {
		findIndex = findMatches.size()-1;
	}
	findCurrent();		
}

void UITextInput::findCurrent() {
	if(findMatches.size() == 0)
		return;

	FindMatch match = findMatches[findIndex];
	lineOffset = match.lineNumber;
	caretPosition = match.caretStart;
	lineOffset = match.lineNumber;
	updateCaretPosition();

	showLine(findMatches[findIndex].lineNumber, false);	
	
	setSelection(match.lineNumber, match.lineNumber, match.caretStart, match.caretEnd);
	_setSelectionColor(Color(0.5, 0.2, 0.4, 1.0));	
}

void UITextInput::setCaretToMouse(Number x, Number y) {
	clearSelection();
	x -= (padding) + decoratorOffset;
	y -= padding;
	//if(lines.size() > 1) {
		lineOffset = y  / (lineHeight+lineSpacing);
		if(lineOffset > wordWrapLines.size()-1)
			lineOffset = wordWrapLines.size()-1;
		setActualLineOffset();	
	//}
	
	int len = wordWrapLines[lineOffset].text.length();
	Number slen= 0;
	
	int newCaretPosition = -1;
	
	for(int i=1; i < len; i++) {
		slen = bufferLines[0]->getTextWidthForString(wordWrapLines[lineOffset].text.substr(0,i)) - horizontalPixelScroll;
		Number slen_prev = bufferLines[0]->getTextWidthForString(wordWrapLines[lineOffset].text.substr(0,i-1)) - horizontalPixelScroll;		
		if(x >= slen_prev && x <= slen) {
			if(x < slen_prev + ((slen - slen_prev) /2.0)) {
				newCaretPosition = i-1;
				break;			
			} else {
				newCaretPosition = i;
				break;
			}
		}
	}
	
	if(newCaretPosition == -1)
		newCaretPosition = 0;
	
	if(x > slen)
		newCaretPosition = len;
				
	caretPosition = newCaretPosition;	
		
	setActualToCaret();
	updateCaretPosition();
}

void UITextInput::removeLines(unsigned int startIndex, unsigned int endIndex) {	

	int startLine = lines[startIndex].wordWrapLineIndex;
	int endLine = lines[endIndex].wordWrapLineIndex;	
	
	int actualLineNumber = endIndex;
	while(actualLineNumber == endIndex && endLine <= wordWrapLines.size()) {
		endLine++;
		if(endLine == wordWrapLines.size()) {
			break;
		} else {
			actualLineNumber = wordWrapLines[endLine].actualLineNumber;
		}
	}
	
	lines.erase(lines.begin()+startIndex, lines.begin()+(endIndex+1));
	wordWrapLines.erase(wordWrapLines.begin()+startLine, wordWrapLines.begin()+endLine);
	
	for(int i=startIndex; i < lines.size(); i++) {
		lines[i].wordWrapLineIndex -= (endLine-startLine);
	}
	
	for(int i=startLine; i < wordWrapLines.size(); i++) {
		wordWrapLines[i].actualLineNumber -= ((endIndex+1)-startIndex);
		wordWrapLines[i].dirty = true;
	}
	
	// always need an existing line
	if(lines.size() == 0) {
		actualLineOffset = -1;
		lineOffset = -1;
		insertLine();
	}
	
	
	renumberLines();
	restructLines();
	readjustBuffer();
}

void UITextInput::selectAll() {
	actualLineOffset = 0;
	actualCaretPosition = 0;
	selectionLine = lines.size()-1;
	
	setSelection(0, lines.size()-1, 0, lines[lines.size()-1].text.length());
}

void UITextInput::insertText(String text, bool updateWordWrap) {	

	vector<String> strings;
	if(multiLine) {
		strings = text.split("\n");
	} else {
		String singleLine = text.replace("\n", "");
		strings.push_back(singleLine);
	}
	
	settingText = true;

	if(hasSelection)
		deleteSelection();

	int startChangeOffset = actualLineOffset;
	
	if(strings.size() > 1) {
		String ctext = lines[actualLineOffset].text;
		String text2 = ctext.substr(actualCaretPosition, ctext.length()-actualCaretPosition);
		ctext = ctext.substr(0,actualCaretPosition);
		ctext += strings[0];
		lines[actualLineOffset].text = ctext;
		actualCaretPosition = ctext.length();
		
		for(int i=1; i < strings.size()-1; i++) {
			insertLine(strings[i]);
			ctext = strings[i];
			actualCaretPosition = ctext.length();			
		}
		
		insertLine();
		ctext = strings[strings.size()-1] + text2;
		actualCaretPosition = ctext.length();
		lines[actualLineOffset].text = ctext;
		
	} else {
		String newText = "";
		if(strings.size() > 0) {
			newText = strings[0];
		}
		String ctext = lines[actualLineOffset].text;
		String text2 = ctext.substr(actualCaretPosition, ctext.length()-actualCaretPosition);
		ctext = ctext.substr(0,actualCaretPosition);
		ctext += newText + text2;
		actualCaretPosition += newText.length();
		lines[actualLineOffset].text = ctext;
	}
	
	settingText = false;	

	if(updateWordWrap) {
		restructLines();	
		renumberLines();
		changedText(startChangeOffset, actualLineOffset);
		updateCaretPosition();	
	}
}

String UITextInput::getLineText(unsigned int index) {
	if(index < lines.size()) {
		return lines[index].text;
	} else {
		return "";
	}
}       

String UITextInput::getSelectionText() {
	if(!hasSelection)
		return L"";
		
	String totalText = L"";

	// Set up iteration cursors
	int currentLine = selectionTop;
	int currentLeft = selectionL;

	// Iterate over the inner lines(we'll be appending \n to these)
	while(currentLine < selectionBottom) {
		totalText += lines[currentLine].text.substr(currentLeft, lines[currentLine].text.length()-currentLeft) + '\n';
		currentLine++;
		currentLeft = 0;
	}
	// Add the selection in the last line(no \n needed)
	totalText += lines[currentLine].text.substr(currentLeft, selectionR-currentLeft);

	return totalText;
}

void UITextInput::setSelectionColor(Color color) {
	selectionColor = color;
	_setSelectionColor(color);
}

void UITextInput::_setSelectionColor(Color color) {
	selectorRectTop->color = color;
	selectorRectMiddle->color = color;
	selectorRectBottom->color = color;
}

void UITextInput::setCursorColor(Color color) {
	blinkerRect->color = color;
}

void UITextInput::setBackgroundColor(Color color) {
	inputRect->color = color;
}

void UITextInput::setLineNumberColor(Color color) {
	lineNumberColor = color;
	for(int i=0; i < numberLines.size(); i++) {
		numberLines[i]->color = lineNumberColor;
	}	
}

void UITextInput::setTextColor(Color color) {
	textColor = color;
	for(int i=0; i < bufferLines.size(); i++) {
		bufferLines[i]->color = textColor;
	}
}

UIScrollContainer *UITextInput::getScrollContainer() {
	return scrollContainer;
}

void UITextInput::saveUndoState() {
	UITextInputUndoState newState;
	newState.content = getText();
	newState.caretPosition = actualCaretPosition;
	newState.lineOffset = actualLineOffset;
	newState.hasSelection = hasSelection;
	if(hasSelection) {
		newState.selectionLine = selectionLine;
		newState.selectionCaretPosition = selectionCaretPosition;
	}
	undoStates[undoStateIndex] = newState;
	
	// if we hit undo state capacity, shift the whole stack
	if(undoStateIndex == MAX_TEXTINPUT_UNDO_STATES-1) {
		for(int i=0; i < MAX_TEXTINPUT_UNDO_STATES-1; i++) {
			undoStates[i] = undoStates[i+1];
		}
	} else {
		undoStateIndex++;
	}
	
	maxRedoIndex = undoStateIndex;
	// By default, reset the isTypingWord status.
	// If we are typing a word after all, the caller
	// will immediately reset it to 1.
	isTypingWord = 0;
}

void UITextInput::setTextDiff(String text) {

	settingText = true;

	std::vector<String> strings = text.split("\n");
	
	int linesDiff = lines.size()-strings.size();
	
	// CHECK INSERTS
	int diffLineStart = -1;
	int diffLineEnd = -1;
	
	for(int i=0; i < strings.size(); i++) {
		if(i < lines.size()) {
			if(strings[i] != lines[i].text) {
				diffLineStart = i;
				break;
			}
		} else {
			diffLineStart = i;
			break;
		}
	}

	int linesOffset = lines.size()-1;	
	for(int i=strings.size()-1; i >= 0; i--, linesOffset--) {
		if(linesOffset >= 0) {
			if(strings[i] != lines[linesOffset].text) {
				diffLineEnd = i+1;
				break;
			}
		} else {
			diffLineEnd = i+1;
			break;
		}
	}
	
	if(diffLineEnd > strings.size()-1) {
		diffLineEnd = strings.size()-1;
	}

	int linesAdded = 0;	
	if(diffLineStart == -1 || diffLineEnd == -1) {
	} else {
	
		if(diffLineStart > diffLineEnd) {
			int tmp = diffLineEnd;
			diffLineEnd = diffLineStart;			
			diffLineStart = tmp;
		}
	
		if( diffLineEnd >= diffLineStart) {
			actualLineOffset = diffLineStart-1;
			if(actualLineOffset == -1) {
				lineOffset = -1;
			} else {
				lineOffset = lines[actualLineOffset].wordWrapLineIndex;
			}
			
			for(int i=diffLineStart; i <= diffLineEnd; i++) {
				insertLine(strings[i]);
				linesAdded++;
			}
			
			settingText = false;
			changedText(diffLineStart-1, diffLineEnd+1, false);
			
		} else {
		}
	}
	
	settingText = false;


	diffLineStart = -1;
	diffLineEnd = -1;	
	
	// CHECK REMOVES
	
	for(int i=0; i < lines.size(); i++) {
		if(i < strings.size()) {
			if(lines[i].text != strings[i]) {
				diffLineStart = i;
				break;
			}
		} else {
			diffLineStart = i;
			break;
		}
	}
	
	diffLineEnd = diffLineStart + (linesAdded + linesDiff) - 1;
	
	if(diffLineStart == -1 || diffLineEnd == -1) {
	} else {
		if( diffLineEnd >= diffLineStart) {		
			removeLines(diffLineStart, diffLineEnd);
			readjustBuffer();
		}
	}
	
	applyBlockOverrides();	
}

void UITextInput::setUndoState(UITextInputUndoState state) {
	clearSelection();
	if(multiLine) {
		setTextDiff(state.content);	
	} else {
		setText(state.content);
	}
	actualLineOffset = state.lineOffset;
	actualCaretPosition = state.caretPosition;
	updateCaretPosition();
	
	if(state.hasSelection) {
		setSelection(actualLineOffset, state.selectionLine, actualCaretPosition, state.selectionCaretPosition);
	}
	
	renumberLines();
	restructLines();		
	readjustBuffer();

	showCurrentLineIfOffscreen();
}

void UITextInput::showCurrentLineIfOffscreen() {
	if(!multiLine)
		return;
		
	int bufferOffset = -linesContainer->getPosition().y/ ( lineHeight+lineSpacing);	
	int heightInLines = (getHeight() / ( lineHeight+lineSpacing)) + 1;
			
	if(lines[actualLineOffset].wordWrapLineIndex > bufferOffset && lines[actualLineOffset].wordWrapLineIndex < bufferOffset + heightInLines) {
	
	} else {
		showLine(actualLineOffset, false);	
	}
}

void UITextInput::Undo() {
	if(undoStateIndex > 0) {
		if(undoStateIndex == maxRedoIndex) {
			saveUndoState();
			undoStateIndex -= 2;			
			setUndoState(undoStates[undoStateIndex]);			
		} else {
			undoStateIndex--;
			setUndoState(undoStates[undoStateIndex]);
		}
	}
}

void UITextInput::Redo() {
	if(undoStateIndex < MAX_TEXTINPUT_UNDO_STATES-1 && undoStateIndex < maxRedoIndex-1) {
		undoStateIndex++;
		setUndoState(undoStates[undoStateIndex]);
	}
}

void UITextInput::Cut() {
	saveUndoState();
	Copy();
	if(hasSelection) {
		deleteSelection();
	} else if (getLineText(lineOffset) != "") {
        if (!multiLine) { setText(""); }
        else {
            removeLines(lineOffset, lineOffset);
            caretPosition = 0;
            updateCaretPosition();
        }
    }
}

void UITextInput::Copy() {
	if(hasSelection) {
		CoreServices::getInstance()->getCore()->copyStringToClipboard(getSelectionText());
	} else {
        if (getLineText(lineOffset) != "") {
            CoreServices::getInstance()->getCore()->copyStringToClipboard(getLineText(lineOffset));
        }
    }
}

void UITextInput::Paste() {
	saveUndoState();
	String clip = CoreServices::getInstance()->getCore()->getClipboardString().replace("\r\n", "\n");
	insertText(clip);
}

void UITextInput::showLine(unsigned int lineNumber, bool top) {
	// If there's no scroll container, no need to adjust the line.
	
	int offsetLineNumber, offsetCaretPosition;
	convertActualToOffset(lineNumber, 0, &offsetLineNumber, &offsetCaretPosition);
	
	if(!multiLine) {
		return;
	}
	
	scrollContainer->setContentSize(getWidth(),  (((wordWrapLines.size()+1) * ((lineHeight+lineSpacing)))) + padding);

	if(top) {
		scrollContainer->setScrollValue(0.0, ((((offsetLineNumber) * ((lineHeight+lineSpacing)))) + padding)/(scrollContainer->getContentSize().y-scrollContainer->getHeight()));
	} else {
		scrollContainer->setScrollValue(0.0, (((((offsetLineNumber) * ((lineHeight+lineSpacing)))) + padding-(scrollContainer->getHeight()/2.0))/(scrollContainer->getContentSize().y-scrollContainer->getHeight())));	
	}
}

bool UITextInput::isNumberOrCharacter(wchar_t charCode) {

	if(charCode == '_') return true;

	if(charCode > 47 && charCode < 58)
		return true;

	if(charCode > 64 && charCode < 91)
		return true;

	if(charCode > 96 && charCode < 123)
		return true;


	return false;
}

void UITextInput::onKeyDown(PolyKEY key, wchar_t charCode) {
	
	if(!hasFocus)
		return;
	
	CoreInput *input = CoreServices::getInstance()->getCore()->getInput();
	
	if(key == KEY_LEFT) {
		if(input->getKeyState(KEY_LSUPER) || input->getKeyState(KEY_RSUPER)) {
			if(input->getKeyState(KEY_LSHIFT) || input->getKeyState(KEY_RSHIFT)) {
			
				if(hasSelection) {
				
					int localLineOffset;
					int localCaretPosition;
					convertActualToOffset(selectionLine, selectionCaretPosition, &localLineOffset, &localCaretPosition);
	
					int newCaretPosition;				
					convertOffsetToActual(localLineOffset, wordWrapLines[localLineOffset].lineStart, &newCaretPosition);

					setSelection(actualLineOffset, selectionLine, actualCaretPosition, newCaretPosition);
				} else {
					int newCaretPosition;				
					convertOffsetToActual(lineOffset, wordWrapLines[lineOffset].lineStart, &newCaretPosition);
												
					setSelection(actualLineOffset, actualLineOffset, actualCaretPosition, newCaretPosition);
				}
			} else {
				caretPosition = wordWrapLines[lineOffset].lineStart;
				clearSelection();				
				setActualToCaret();			
				updateCaretPosition();
			}
		} else if (input->getKeyState(KEY_LALT) || input->getKeyState(KEY_RALT)) {
			if(input->getKeyState(KEY_LSHIFT) || input->getKeyState(KEY_RSHIFT)) {
				if(hasSelection) {
					setSelection(actualLineOffset, selectionLine, actualCaretPosition, caretSkipWordBack(selectionLine, selectionCaretPosition));
				} else {
					setSelection(actualLineOffset, actualLineOffset, actualCaretPosition, caretSkipWordBack(actualLineOffset, actualCaretPosition));					
				}
			} else {				
				actualCaretPosition = caretSkipWordBack(actualLineOffset,actualCaretPosition);
				clearSelection();				
				updateCaretPosition();			
			}
		} else {
			if(actualCaretPosition > 0 || lineOffset > 0) {
				if(input->getKeyState(KEY_LSHIFT) || input->getKeyState(KEY_RSHIFT)) {
					// Holding down shift allows you to select with the arrow keys.
					if(hasSelection) {
						if(selectionCaretPosition > 0)
							setSelection(actualLineOffset, selectionLine, actualCaretPosition, selectionCaretPosition-1);
					} else {
						setSelection(actualLineOffset, actualLineOffset, actualCaretPosition, max(actualCaretPosition-1, 0));
					}
				} else {
					int newLineStart = actualLineOffset;
					int newCaretPosition = actualCaretPosition;
					if(newCaretPosition > 0) {
						newCaretPosition--;
					} else if(newLineStart > 0) {
						newLineStart--;
						newCaretPosition = lines[newLineStart].text.length();
					}

					clearSelection();
					actualCaretPosition = newCaretPosition;
					actualLineOffset = newLineStart;
					updateCaretPosition();
				}
			}
		}
		return;
	}
	
	if(key == KEY_RIGHT) {
		if(input->getKeyState(KEY_LSUPER) || input->getKeyState(KEY_RSUPER)) {
			if(caretPosition < wordWrapLines[lineOffset].text.length()) {
				if(input->getKeyState(KEY_LSHIFT) || input->getKeyState(KEY_RSHIFT)) {
				
					if(hasSelection) {
					
						int localLineOffset;
						int localCaretPosition;
						convertActualToOffset(selectionLine, selectionCaretPosition, &localLineOffset, &localCaretPosition);
					
						int newCaretPosition;	
						convertOffsetToActual(localLineOffset, wordWrapLines[localLineOffset].text.length(), &newCaretPosition);				
						
						setSelection(actualLineOffset, selectionLine, actualCaretPosition, newCaretPosition);
					} else {
						int newCaretPosition;				
						convertOffsetToActual(lineOffset, wordWrapLines[lineOffset].text.length(), &newCaretPosition);					
						setSelection(actualLineOffset, actualLineOffset, actualCaretPosition, newCaretPosition);
					}
				} else {
					caretPosition = wordWrapLines[lineOffset].text.length();					
					clearSelection();
					setActualToCaret();
					updateCaretPosition();
				}
			}
		} else if (input->getKeyState(KEY_LALT) || input->getKeyState(KEY_RALT)) {
			if(actualCaretPosition < lines[actualLineOffset].text.length()) {
				if(input->getKeyState(KEY_LSHIFT) || input->getKeyState(KEY_RSHIFT)) {
					if(hasSelection) {
						setSelection(actualLineOffset, selectionLine, actualCaretPosition, caretSkipWordForward(selectionLine, selectionCaretPosition));
					} else {
						setSelection(actualLineOffset, actualLineOffset, actualCaretPosition, caretSkipWordForward(actualLineOffset, actualCaretPosition));					
					}
				} else {				
					actualCaretPosition = caretSkipWordForward(actualLineOffset,actualCaretPosition);
					clearSelection();
					updateCaretPosition();										
				}
			}
		} else {
			if(actualCaretPosition < lines[actualLineOffset].text.length() || lineOffset + 1 < lines.size()) {
				if(input->getKeyState(KEY_LSHIFT) || input->getKeyState(KEY_RSHIFT)) {
					// Holding down shift allows you to select with the arrow keys.
					if(hasSelection) {
						setSelection(actualLineOffset, selectionLine, actualCaretPosition, selectionCaretPosition+1);
					} else {
						setSelection(actualLineOffset, actualLineOffset, actualCaretPosition, actualCaretPosition+1);
					}
				} else {
					clearSelection();

					int newLineEnd = actualLineOffset;
					int newCaretPosition = actualCaretPosition;
					if(newCaretPosition < lines[actualLineOffset].text.length()) {
						newCaretPosition++;
					} else if(newLineEnd + 1 < lines.size()) {
						newLineEnd++;
						newCaretPosition = 0;
					}
					actualCaretPosition = newCaretPosition;
					actualLineOffset = newLineEnd;
				}
				updateCaretPosition();
			}
		}
		return;
	}
	
	if(key == KEY_PAGEUP) {
		if(multiLine) {
			scrollContainer->scrollVertical(-(scrollContainer->getHeight())/(scrollContainer->getContentSize().y));
		
		}
		return;
	}

	if(key == KEY_HOME) {
		if(multiLine) {
			scrollContainer->setScrollValue(0, 0);
		
		}
		return;
	}
	
	if(key == KEY_END) {
		if(multiLine) {
			scrollContainer->setScrollValue(0, 1);
		
		}
		return;
	}

	if(key == KEY_PAGEDOWN) {
		if(multiLine) {
			scrollContainer->scrollVertical((scrollContainer->getHeight())/(scrollContainer->getContentSize().y));
		
		}
		return;
	}
	
	if(key == KEY_UP) {		
		if(multiLine) {
			if(input->getKeyState(KEY_LSHIFT) || input->getKeyState(KEY_RSHIFT)) {				
				if(hasSelection) {		
					int selectionOffset, selectionCaret;
					convertActualToOffset(selectionLine, selectionCaretPosition, &selectionOffset, &selectionCaret);					
					if(selectionOffset > 0) {
						if(wordWrapLines[selectionOffset-1].actualLineNumber == selectionLine) {
							int actualAdjust;
							convertOffsetToActual(selectionOffset, selectionCaret, &actualAdjust);
							selectionCaret = actualAdjust - wordWrapLines[selectionOffset].text.length();
						}														
						setSelection(actualLineOffset, wordWrapLines[selectionOffset-1].actualLineNumber, actualCaretPosition, selectionCaret);
					}
				} else {
					if(lineOffset > 0) {
						int newActualCaretPosition;
						convertOffsetToActual(lineOffset-1, caretPosition, &newActualCaretPosition);
						setSelection(actualLineOffset, wordWrapLines[lineOffset-1].actualLineNumber, actualCaretPosition, newActualCaretPosition);
					}
				}
				
				// scroll up if selection going out of view 
				int selectionOffset, selectionCaret;
				convertActualToOffset(selectionLine, selectionCaretPosition, &selectionOffset, &selectionCaret);				
				if(linesContainer->getPosition().y + (selectionOffset*(lineHeight+lineSpacing)+padding) < 0.0) {
					scrollContainer->setScrollValue(0.0, ((((selectionOffset) * ((lineHeight+lineSpacing)))) + padding)/(scrollContainer->getContentSize().y-scrollContainer->getHeight()));
				}							
			} else {
				clearSelection();				
				if(lineOffset > 0) {
					lineOffset--;
					setActualLineOffset();					
					setActualToCaret();
					updateCaretPosition();							
				}
				
				// scroll up if cursor going out of view 
				if(linesContainer->getPosition().y + (lineOffset*(lineHeight+lineSpacing)+padding) < 0.0) {
					scrollContainer->setScrollValue(0.0, ((((lineOffset) * ((lineHeight+lineSpacing)))) + padding)/(scrollContainer->getContentSize().y-scrollContainer->getHeight()));
				}				
			}
		}
		if(!hasSelection) {
			blinkerRect->visible  = true;
		}
		return;
	}
	
	if(key == KEY_DOWN) {
		if(multiLine) {
			if(input->getKeyState(KEY_LSHIFT) || input->getKeyState(KEY_RSHIFT)) {			
				if(hasSelection) {
					int selectionOffset, selectionCaret;
					convertActualToOffset(selectionLine, selectionCaretPosition, &selectionOffset, &selectionCaret);
				
					if(selectionOffset < wordWrapLines.size()-1) {						
						if(wordWrapLines[selectionOffset+1].actualLineNumber == selectionLine) {
							int actualAdjust;
							convertOffsetToActual(selectionOffset, selectionCaret, &actualAdjust);
							selectionCaret = actualAdjust + wordWrapLines[selectionOffset].text.length();
						}
						setSelection(actualLineOffset, wordWrapLines[selectionOffset+1].actualLineNumber, actualCaretPosition, selectionCaret);
					}
				} else {				
					if(lineOffset < wordWrapLines.size()-1) {
						int newActualCaretPosition;
						convertOffsetToActual(lineOffset+1, caretPosition, &newActualCaretPosition);					
						setSelection(actualLineOffset, wordWrapLines[lineOffset+1].actualLineNumber, actualCaretPosition, newActualCaretPosition);											
					}
				}
				
				// scroll down if selection going out of view 
				int selectionOffset, selectionCaret;
				convertActualToOffset(selectionLine, selectionCaretPosition, &selectionOffset, &selectionCaret);				
				if(linesContainer->getPosition().y + (selectionOffset*(lineHeight+lineSpacing)+padding) > scrollContainer->getHeight()-lineHeight-lineSpacing) {
					scrollContainer->setScrollValue(0.0, (((((selectionOffset) * ((lineHeight+lineSpacing)))) + padding-(scrollContainer->getHeight()-lineHeight-lineSpacing))/(scrollContainer->getContentSize().y-scrollContainer->getHeight())));
				}
																
			} else {				
				clearSelection();
				if(lineOffset < wordWrapLines.size()-1) {
					lineOffset++;
					setActualLineOffset();
					setActualToCaret();					
					updateCaretPosition();										
				}
				
				// scroll down if cursor going out of view 			
				if(linesContainer->getPosition().y + (lineOffset*(lineHeight+lineSpacing)+padding) > scrollContainer->getHeight()-lineHeight-lineSpacing) {
					scrollContainer->setScrollValue(0.0, (((((lineOffset) * ((lineHeight+lineSpacing)))) + padding-(scrollContainer->getHeight()-lineHeight-lineSpacing))/(scrollContainer->getContentSize().y-scrollContainer->getHeight())));
				}				
			}			
		}
		if(!hasSelection) {
			blinkerRect->visible  = true;
		}
		return;
	}
	
	if(key == KEY_ESCAPE) {
		if(!multiLine) {
			dispatchEvent(new Event(), Event::CANCEL_EVENT);		
		}
	}
	
	if(key == KEY_RETURN) {
		if(multiLine) {	
			saveUndoState();
			if(hasSelection) {
				deleteSelection();		
			}			
			insertLine();
			updateCaretPosition();
            if(linesContainer->getPosition().y + (lineOffset*(lineHeight+lineSpacing)+padding) > scrollContainer->getHeight()-lineHeight-lineSpacing) {
                scrollContainer->setScrollValue(0.0, (((((lineOffset) * ((lineHeight+lineSpacing)))) + padding-(scrollContainer->getHeight()-lineHeight-lineSpacing))/(scrollContainer->getContentSize().y-scrollContainer->getHeight())));
            }
		} else {
			dispatchEvent(new Event(), Event::COMPLETE_EVENT);
		}
		return;
	}

	// indent/shift text
	if (multiLine && (key == KEY_LEFTBRACKET || key == KEY_RIGHTBRACKET) &&
		(input->getKeyState(KEY_LSUPER) || input->getKeyState(KEY_RSUPER) ||
			input->getKeyState(KEY_LCTRL) || input->getKeyState(KEY_RCTRL))) {
				shiftText( (key == KEY_RIGHTBRACKET) ? false : true );
				return;
	}

	// at this point, return if certain modifier keys are held down so as not to potentially add any unwanted text
	if (input->getKeyState(KEY_LSUPER) || input->getKeyState(KEY_RSUPER) || input->getKeyState(KEY_LCTRL) ||
		input->getKeyState(KEY_RCTRL) || input->getKeyState(KEY_LALT) || input->getKeyState(KEY_RALT))
			return;
	
	String ctext = lines[actualLineOffset].text;
	
	bool _changedText = false;
		
	if(((charCode > 31 && charCode < 127) || charCode > 127) && key != KEY_DELETE && key != KEY_HOME && key != KEY_END) {
		
		if(!isNumberOnly || (isNumberOnly && ((charCode > 47 && charCode < 58) || (charCode == '.' || charCode == '-')))) {
			if(!isNumberOrCharacter(charCode)) { 
				saveUndoState();
			} else if (!isTypingWord) {
				saveUndoState();
				isTypingWord = 1;
			}
			if(hasSelection)
				deleteSelection();
			ctext = lines[actualLineOffset].text;
			String text2 = ctext.substr(actualCaretPosition, ctext.length()-actualCaretPosition);
			ctext = ctext.substr(0,actualCaretPosition);
			ctext += charCode + text2;
			actualCaretPosition++;
			_changedText = true;
			
			showCurrentLineIfOffscreen();
		}
	}
	
	if(key == KEY_TAB && multiLine) {
		saveUndoState();
		if(hasSelection)
			deleteSelection();		
		ctext = lines[actualLineOffset].text;
		String text2 = ctext.substr(actualCaretPosition, ctext.length()-actualCaretPosition);
		ctext = ctext.substr(0,actualCaretPosition);
		ctext += (wchar_t)'\t' + text2;
		actualCaretPosition++;
		_changedText = true;		
	}
	
	if(key == KEY_DELETE) {
		if(hasSelection) {
			saveUndoState();
			deleteSelection();
			return;
		} else {
			ctext = lines[actualLineOffset].text;
			if(actualCaretPosition < ctext.length()) {
				if(ctext.length() > 0) {
					String text2 = ctext.substr(actualCaretPosition+1, ctext.length()-actualCaretPosition);
					ctext = ctext.substr(0,actualCaretPosition);
					ctext += text2;
					_changedText = true;
				} else {
					return;
				}
			} else {
				if(actualLineOffset < lines.size() - 1) {
					saveUndoState();
					lines[actualLineOffset].text = ctext + lines[actualLineOffset+1].text;
					removeLines(actualLineOffset+1, actualLineOffset+1);
					changedText(actualLineOffset, actualLineOffset);
					updateCaretPosition();
					return;
				} else {
					return;
				}
			}
		}
        if (multiLine) {
            if(linesContainer->getPosition().y + (lineOffset*(lineHeight+lineSpacing)+padding) < 0.0) {
                scrollContainer->setScrollValue(0.0, ((((lineOffset) * ((lineHeight+lineSpacing)))) + padding)/(scrollContainer->getContentSize().y-scrollContainer->getHeight()));
            }
        }
	}
	
	if(key == KEY_BACKSPACE) {
		if(hasSelection) {
			saveUndoState();
			deleteSelection();
			return;
		} else {
		ctext = lines[actualLineOffset].text;
		
		if(actualCaretPosition > 0) {
			saveUndoState();
			if(ctext.length() > 0) {
				String text2 = ctext.substr(actualCaretPosition, ctext.length()-actualCaretPosition);
				ctext = ctext.substr(0,actualCaretPosition-1);
				ctext += text2;
				actualCaretPosition--;
				_changedText = true;			
			}
		} else {
			if(actualLineOffset > 0) {
				saveUndoState();			
				actualLineOffset--;
				actualCaretPosition = lines[actualLineOffset].text.length();
				lines[actualLineOffset].text = lines[actualLineOffset].text + ctext;	
				removeLines(actualLineOffset+1, actualLineOffset+1);
				changedText(actualLineOffset, actualLineOffset);
				setOffsetToActual();
				updateCaretPosition();
				return;
			}
		}
		}
        if (multiLine) {
            if(linesContainer->getPosition().y + (lineOffset*(lineHeight+lineSpacing)+padding) < 0.0) {
                scrollContainer->setScrollValue(0.0, ((((lineOffset) * ((lineHeight+lineSpacing)))) + padding)/(scrollContainer->getContentSize().y-scrollContainer->getHeight()));
            }
        }
	}
	
	lines[actualLineOffset].text = ctext;
	
	if(_changedText) {
		changedText(actualLineOffset, actualLineOffset);
	}
	updateCaretPosition();
}

void UITextInput::Update() {
	resizeTimer += core->getElapsed();
	
	if(draggingSelection) {
		if(selectionDragMouse != dragMouseStart) {
			dragSelectionTo(selectionDragMouse.x, selectionDragMouse.y - linesContainer->getPosition().y);	
		}
	}
	
	if(resizeTimer > 0.2 && !didMultilineResize) {
		doMultilineResize();
	}
	
	if(hasSelection) {
		blinkerRect->visible = false;
	}

	blinkerRect->setPosition(caretImagePosition + 1 -horizontalPixelScroll, (lineOffset * ( lineHeight+lineSpacing)));

	if(hasFocus) {
//		inputRect->setStrokeColor(1.0f, 1.0f, 1.0f, 0.25f);	
	} else {
		blinkerRect->visible = false;		
//		inputRect->setStrokeColor(1.0f, 1.0f, 1.0f, 0.1f);
	}
	
	for(int i=0; i < linesToDelete.size(); i++) {
		delete linesToDelete[i];
	}
	linesToDelete.clear();

	textContainer->scissorBox.setRect(textContainer->getScreenPositionForMainCamera().x, textContainer->getScreenPositionForMainCamera().y, textContainer->getWidth(), textContainer->getHeight() + padding);
}

UITextInput::~UITextInput() {
	core->removeAllHandlersForListener(this);
	core->getInput()->removeAllHandlersForListener(this);
	delete blinkTimer;

	linesContainer->ownsChildren = true;
	if(!ownsChildren) {
		delete linesContainer;
		delete inputRect;
		delete lineNumberBg;
	}
}

LineColorInfo LineColorInfo::getColorInfoForRange(int start, int length) {
	LineColorInfo retInfo;
	for(int i=0; i < colors.size(); i++) {
		if(colors[i].rangeStart <= start + length && colors[i].rangeEnd >= start) {
			LineColorData newData;
			newData.color = colors[i].color;
			
			newData.rangeStart = colors[i].rangeStart - start;
			if(newData.rangeStart < 0) {
				newData.rangeStart = 0;		
			}

			newData.rangeStart = colors[i].rangeStart - start;
			if(newData.rangeStart < 0) {
				newData.rangeStart = 0;		
			}
			
			newData.rangeEnd = colors[i].rangeEnd - start;
			if(newData.rangeEnd < 0) {
				newData.rangeEnd = 0;		
			}

			newData.rangeEnd = colors[i].rangeEnd - start;
			if(newData.rangeEnd > length) {
				newData.rangeEnd = length;		
			}
			
//			if(newData.rangeStart != newData.rangeEnd)
				retInfo.colors.push_back(newData);
		}
	}
	return retInfo;
}

std::vector<TextColorPair> UITextInput::splitTokens(String stringToSplit, LineColorInfo *stringColorInfo) {
    std::vector<TextColorPair> result;	
	
    size_t pos = 0, lastPos = 0;
    while ((pos = stringToSplit.find_first_of(";,| .():-+/*", lastPos)) != string::npos)
    {
		TextColorPair chunk;
		chunk.text = stringToSplit.contents.substr(lastPos, pos-lastPos+1);
		if(stringColorInfo) {
			chunk.colorInfo = stringColorInfo->getColorInfoForRange(lastPos, pos-lastPos+1);
		}
        result.push_back(chunk);
        lastPos = pos+1;
    }
	TextColorPair chunk;
	chunk.text = stringToSplit.contents.substr(lastPos);
	if(stringColorInfo) {
		chunk.colorInfo = stringColorInfo->getColorInfoForRange(lastPos, stringToSplit.size()-lastPos);
	}

    result.push_back(chunk);
    return result;
}

std::vector<TextColorPair> UITextInput::makeWordWrapBuffer(LineInfo *lineInfo, String indentPrefix) {

	String text = lineInfo->text;
	std::vector<TextColorPair> retVec;
	
	if(bufferLines[0]->getTextWidthForString(text) < getWidth() - decoratorOffset - padding) {
			return retVec;
	}		
	
	LineColorInfo *stringColorInfo = &lineInfo->colorInfo;
	
	std::vector<TextColorPair> parts = splitTokens(text, stringColorInfo);

	String checkString;
	LineColorInfo colorInfo;	
	
	if(parts.size() == 1) {
		TextColorPair pair;
		pair.text = text;
		pair.colorInfo = lineInfo->colorInfo;
		retVec.push_back(pair);
	} else {
	
		for(int i=0; i < parts.size(); i++) {
			String _checkString = checkString + parts[i].text;
			if(bufferLines[0]->getTextWidthForString(indentPrefix+_checkString) > getWidth() - decoratorOffset - padding) {
				if(retVec.size() == 0) {
					TextColorPair pair;
					pair.text = checkString;
					pair.colorInfo = colorInfo;
					retVec.push_back(pair);
				} else {
					TextColorPair pair;
					pair.text = indentPrefix+checkString;
					pair.colorInfo = colorInfo;
					for(int c=0; c < pair.colorInfo.colors.size(); c++) {
						pair.colorInfo.colors[c].rangeStart += indentPrefix.size();
						pair.colorInfo.colors[c].rangeEnd += indentPrefix.size();
					}
					
					retVec.push_back(pair);
				}
				checkString = "";
				colorInfo = LineColorInfo();				
			}						
			for(int c=0; c < parts[i].colorInfo.colors.size(); c++) {
				parts[i].colorInfo.colors[c].rangeStart += checkString.size();
				parts[i].colorInfo.colors[c].rangeEnd += checkString.size();
			}
			
			checkString = checkString + parts[i].text;			
			colorInfo.colors.insert(colorInfo.colors.end(), parts[i].colorInfo.colors.begin(), parts[i].colorInfo.colors.end() );
		}
				
		if(retVec.size() == 0) {
			TextColorPair pair;
			pair.text = checkString;
			pair.colorInfo = lineInfo->colorInfo;			
			retVec.push_back(pair);				
		} else {
			TextColorPair pair;
			pair.text = indentPrefix+checkString;
			pair.colorInfo = colorInfo;		
			for(int c=0; c < pair.colorInfo.colors.size(); c++) {
				pair.colorInfo.colors[c].rangeStart += indentPrefix.size();
				pair.colorInfo.colors[c].rangeEnd += indentPrefix.size();
			}
			
			retVec.push_back(pair);				
		}
	}
	
	return retVec;
}

void UITextInput::updateWordWrap(int lineStart, int lineEnd) {

	if(!multiLine) {
		wordWrapLines.clear();
		WordWrapLine line;
		line.text = lines[0].text;
		line.isWordWrap = false;		
		line.actualLineNumber = 0;
		line.lineStart = 0;
		wordWrapLines.push_back(line);
		lines[0].wordWrapLineIndex = 0;
		readjustBuffer(0, 0);		
		return;
	}

	int wordWrapRangeBegin = lines[lineStart].wordWrapLineIndex;
	int wordWrapRangeEnd = lines[lineEnd].wordWrapLineIndex;

	if(wordWrapRangeBegin == -1) {
		wordWrapRangeBegin = 0;
	}

	if(wordWrapRangeEnd == -1) {
		wordWrapRangeEnd = wordWrapLines.size()-1;
	}

	if(wordWrapLines.size()) {
		do {
			wordWrapRangeEnd++;
		}
		
		while(wordWrapLines[wordWrapRangeEnd].isWordWrap && wordWrapRangeEnd < wordWrapLines.size());
		
		wordWrapLines.erase(wordWrapLines.begin()+wordWrapRangeBegin, wordWrapLines.begin()+wordWrapRangeEnd);
	}
	
	int insertPoint = wordWrapRangeBegin;
	
	for(int i=lineStart; i < lineEnd+1; i++) {
		String indentPrefix = lines[i].text.substr(0, lines[i].text.contents.find_first_not_of(" \t", 0));
		
		std::vector<TextColorPair> wrapLines = makeWordWrapBuffer(&lines[i], indentPrefix);
		if(wrapLines.size() > 0) {
			for(int j=0; j < wrapLines.size(); j++) {
				WordWrapLine line;
				line.text = wrapLines[j].text;
				if(j == 0) {
					line.isWordWrap = false;
					line.lineStart = 0;
					lines[i].wordWrapLineIndex = insertPoint;
				} else {
					line.isWordWrap = true;
					line.lineStart = indentPrefix.size();
				}
				line.actualLineNumber = i;
				line.blockOverrideToken = lines[i].blockOverrideToken;
				line.colorInfo = wrapLines[j].colorInfo;
				wordWrapLines.insert(wordWrapLines.begin()+insertPoint, line);
				insertPoint++;
			}
		} else {
				WordWrapLine line;		
				line.text = lines[i].text;
				line.isWordWrap = false;
				line.actualLineNumber = i;
				line.lineStart = 0;
				lines[i].wordWrapLineIndex = insertPoint;
				line.colorInfo = lines[i].colorInfo;		
				line.blockOverrideToken = lines[i].blockOverrideToken;
				wordWrapLines.insert(wordWrapLines.begin()+insertPoint, line);
				insertPoint++;				
		}
	}
	
	int actualLineNumber = wordWrapLines[insertPoint-1].actualLineNumber;
	for(int i=insertPoint; i < wordWrapLines.size(); i++) {
		if(!wordWrapLines[i].isWordWrap) {
			actualLineNumber++;		
			lines[actualLineNumber].wordWrapLineIndex = i;		
		}
	}
								
	readjustBuffer(wordWrapRangeBegin, wordWrapRangeEnd);
}

void UITextInput::readjustBuffer(int lineStart, int lineEnd) {

	if(scrollContainer) {
		scrollContainer->getVScrollBar()->setTickSize((UI_TEXT_INPUT_SCROLL_SPEED * lineHeight) /scrollContainer->getContentSize().y);
	}
	
	if(lineEnd == -1) {
		lineEnd = wordWrapLines.size()-1;
	}

	int bufferOffset = -linesContainer->getPosition().y/ ( lineHeight+lineSpacing);	
	Number bufferLineOffset = bufferOffset * ( lineHeight+lineSpacing);	

	for(int i=0; i < bufferLines.size(); i++) {
		if(bufferOffset + i < wordWrapLines.size()) {	
		if(wordWrapLines[bufferOffset+i].dirty || wordWrapLines[bufferOffset+i].lastBufferIndex != i || wordWrapLines[bufferOffset+i].text != bufferLines[i]->getText()) { 
		bufferLines[i]->getLabel()->clearColors();
		wordWrapLines[bufferOffset+i].dirty = false;
		wordWrapLines[bufferOffset+i].lastBufferIndex = i;
		
			if(wordWrapLines[bufferOffset+i].blockOverrideToken.overrideType != SyntaxHighlightToken::TOKEN_TYPE_NO_OVERRIDE && wordWrapLines[bufferOffset+i].blockOverrideToken.overrideType != SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_END && wordWrapLines[bufferOffset+i].blockOverrideToken.overrideType != SyntaxHighlightToken::TOKEN_TYPE_OVERRIDE_START) {

				bufferLines[i]->getLabel()->setColorForRange(wordWrapLines[bufferOffset+i].blockOverrideToken.color, 0, wordWrapLines[bufferOffset+i].text.size()-1);
				bufferLines[i]->setColor(1.0, 1.0, 1.0, 1.0);			
			} else {
			for(int j=0; j < wordWrapLines[bufferOffset+i].colorInfo.colors.size(); j++) {
				bufferLines[i]->getLabel()->setColorForRange(wordWrapLines[bufferOffset+i].colorInfo.colors[j].color, wordWrapLines[bufferOffset+i].colorInfo.colors[j].rangeStart, wordWrapLines[bufferOffset+i].colorInfo.colors[j].rangeEnd);
				bufferLines[i]->setColor(1.0, 1.0, 1.0, 1.0);
			}
			}		
			}
//			if(bufferOffset+i >= lineStart && bufferOffset+i <= lineEnd) {			
				bufferLines[i]->setText(wordWrapLines[bufferOffset+i].text);
//			}
			bufferLines[i]->visible = true;
		} else {
			bufferLines[i]->visible = false;
		}
		bufferLines[i]->setPosition(-horizontalPixelScroll, bufferLineOffset + (i*(lineHeight+lineSpacing)),0.0f);
	}

	for(int i=0; i < numberLines.size(); i++) {
	
	
		if(bufferOffset + i < wordWrapLines.size()) {
		if(lineNumbersEnabled) {	
		
//			if(bufferOffset+i >= lineStart && bufferOffset+i <= lineEnd) {												
				numberLines[i]->setText(String::IntToString(wordWrapLines[bufferOffset+i].actualLineNumber+1));
				int textWidth = ceil(numberLines[i]->getWidth());			
				numberLines[i]->setPosition(-textWidth,padding + bufferLineOffset + (i*(lineHeight+lineSpacing)),0.0f);		
//			}
			
			if(wordWrapLines[bufferOffset+i].isWordWrap) {
				numberLines[i]->visible = false;			
			} else {
				numberLines[i]->visible = true;
			}
		}
		} else {
			numberLines[i]->visible = false;		
		}
		
	}

}


void UITextInput::handleEvent(Event *event) {

	if(event->getDispatcher() == core->getInput()) {
		if(event->getEventCode() == InputEvent::EVENT_KEYDOWN) {
			InputEvent *inputEvent = (InputEvent*) event;
			onKeyDown(inputEvent->key, inputEvent->charCode);
		}
	}

	if(event->getDispatcher() == contextMenu) {
		UIMenuItem *item = contextMenu->getSelectedItem();
		if(item->_id == "copy") {
			Copy();
		} else if(item->_id == "cut") {
			Cut();
		} else if(item->_id == "paste") {
			Paste();
		} else if(item->_id == "select_all") {
			selectAll();
		}
	}


	if(event->getDispatcher() == core && hasFocus) {
		switch(event->getEventCode()) {
			case Core::EVENT_UNDO:
				Undo();
			break;
			case Core::EVENT_REDO:
				Redo();
			break;
			case Core::EVENT_COPY:
				Copy();
			break;
			case Core::EVENT_CUT:
				Cut();
			break;
			case Core::EVENT_PASTE:
				Paste();
			break;
			case Core::EVENT_SELECT_ALL:
				selectAll();
			break;
			
		}
	}

	if(event->getDispatcher() == scrollContainer) {
		if(event->getEventCode() == Event::CHANGE_EVENT) {
			readjustBuffer();
		}
	}

	if(event->getDispatcher() == inputRect) {
		switch(event->getEventCode()) {
			case InputEvent::EVENT_MOUSEDOWN:			
				if(((InputEvent*)event)->getMouseButton() == CoreInput::MOUSE_BUTTON2) {
					if(globalMenuSingleton) {
						contextMenu = globalMenuSingleton->showMenuAtMouse(100);

						contextMenu->addOption("Copy", "copy");
						contextMenu->addOption("Cut", "cut");
						contextMenu->addOption("Paste", "paste");
						contextMenu->addDivider();
						contextMenu->addOption("Select All", "select_all");	
						contextMenu->fitToScreenVertical();
						contextMenu->addEventListener(this, UIEvent::OK_EVENT);
						return;						
					}
				} else {
					focusSelf();
					setCaretToMouse(((InputEvent*)event)->mousePosition.x, ((InputEvent*)event)->mousePosition.y - linesContainer->getPosition().y);
					selectionDragMouse = ((InputEvent*)event)->mousePosition;				
					dragMouseStart = ((InputEvent*)event)->mousePosition;
					draggingSelection = true;
				}
			break;
			case InputEvent::EVENT_MOUSEUP:
				draggingSelection = false;
			break;
			case InputEvent::EVENT_MOUSEWHEEL_UP:
				if(scrollContainer) {
					scrollContainer->_onMouseWheelUp();
				}
			break;
			case InputEvent::EVENT_MOUSEWHEEL_DOWN:
				if(scrollContainer) {
					scrollContainer->_onMouseWheelDown();
				}
			break;
			case InputEvent::EVENT_DOUBLECLICK:
				selectWordAtCaret();
			break;
			case InputEvent::EVENT_MOUSEMOVE:
				CoreServices::getInstance()->getCore()->setCursor(Core::CURSOR_TEXT);			
				if(draggingSelection) {
					selectionDragMouse = ((InputEvent*)event)->mousePosition;
				}
			break;
			case InputEvent::EVENT_MOUSEOVER:
				CoreServices::getInstance()->getCore()->setCursor(Core::CURSOR_TEXT);
			break;
			case InputEvent::EVENT_MOUSEOUT:
				CoreServices::getInstance()->getCore()->setCursor(Core::CURSOR_ARROW);
			break;				
		}
	}
	
	if(event->getDispatcher() == blinkTimer) {
		if(hasSelection || draggingSelection) {
				blinkerRect->visible  = false;
		} else {
			if(hasFocus)
				blinkerRect->visible  = !blinkerRect->visible;
			else
				blinkerRect->visible  = false;
		}
	}
	
}

void UITextInput::shiftText(bool left) {
	if (multiLine && (hasSelection || lines[lineOffset].text != "")) {
		saveUndoState();
		
		String t = (wchar_t)'\t';
		
		if (hasSelection) {
			for (int i = selectionTop; i <= selectionBottom; i++) {
				if (i == selectionBottom && selectionCaretPosition <= 0)
					// at least one character of bottom line needs to be selected before indenting, so...
					break;
				if (indentType == INDENT_TAB) {
					if (left) {
						if (lines[i].text.substr(0,1) == t) {
							lines[i].text = lines[i].text.substr(1, lines[i].text.length()-1);
							caretPosition--;
						}
					} else {
						lines[i].text = t + lines[i].text;
						caretPosition++;
					}
				} else if (indentType == INDENT_SPACE) {
					if (left) {
						// TODO
					} else {
						// TODO
					}
				}
			}
		}
		else {
			if (indentType == INDENT_TAB) {
				if (left) {
					if (lines[lineOffset].text.substr(0,1) == t) {
						lines[lineOffset].text = lines[lineOffset].text.substr(1, lines[lineOffset].text.length()-1);
						caretPosition--;
					}
				} else {
					lines[lineOffset].text = t + lines[lineOffset].text;
					caretPosition++;
				}
			} else if (indentType == INDENT_SPACE) {
				if (left) {
					// TODO
				} else {
					// TODO
				}
			}
		}
		
		changedText(selectionTop, selectionBottom);
		updateCaretPosition();
	}
}

void UITextInput::convertIndentToSpaces() {
	if (indentType == INDENT_TAB) {
		indentType = INDENT_SPACE;
		
		//TODO
	}
}

void UITextInput::convertIndentToTabs() {
	if (indentType == INDENT_SPACE) {
		indentType = INDENT_TAB;
		
		//TODO
	}
}