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ScrollingField.as Go to the documentation of this file. /****************************************************************** ** Copyright 2005-2006 Adobe Systems Incorporated ** Distributed under the MIT License (see accompanying file LICENSE_1_0_0.txt ** or a copy at http://opensource.adobe.com/licenses.html) ** ** ScrollingField Class ********************************************************************/ import mx.xpath.XPathAPI; import amg.*; class amg.ScrollingField extends MovieClip { //member properties public var fieldName:String; private var _iControlWidth:Number; private var _iControlHeight:Number; private var ScrollingFieldBg:MovieClip; public var txtField:TextField; private var txtFieldStyle:TextField.StyleSheet; private var _iTextFieldSideSpacer:Number = 12; public var iScrollingFieldTextWidth:Number; public var iScrollingFieldTextHeight:Number; private var ScrollBtnUp:MovieClip; private var ScrollBtnDown:MovieClip; private var ScrollLine:MovieClip; private var ScrollThumb:MovieClip; private var ScrollBarBg:MovieClip; //private var ScrollThumbMarks:MovieClip; private var _bScrollUsed:Boolean; private var _iScrollDistance:Number = 100; private var _iScrollFieldMargin:Number = 6; private var _iScrollBarBorder:Number = 0x333333; private var _iScrollBarBorderAlpha:Number = 100; private var _iScrollBarFill:Number = 0xdddddd; private var _iScrollBarFillAlpha:Number = 100; //class constructor public function ScrollingField() { //this.ScrollingFieldBg = this.attachMovie("ScrollingFieldBg", "ScrollingFieldBg", this.getNextHighestDepth()); this.createTextField("txtField",this.getNextHighestDepth(),_iTextFieldSideSpacer,0,200,50); this.txtField.html = true; this.txtField.mouseWheelEnabled = true; this.txtField.multiline = true; this.txtField.wordWrap = true; this.txtField.antiAliasType = "advanced"; this.txtField.border = false; this.ScrollBarBg = this.createEmptyMovieClip("mask",this.getNextHighestDepth()); this.ScrollLine = this.attachMovie("ScrollLine","ScrollLine",this.getNextHighestDepth()); this.ScrollBtnUp = this.attachMovie("ScrollBtnUp","ScrollBtnUp",this.getNextHighestDepth()); this.ScrollBtnDown = this.attachMovie("ScrollBtnDown","ScrollBtnDown",this.getNextHighestDepth()); this.ScrollThumb = this.attachMovie("ScrollThumb","ScrollThumb",this.getNextHighestDepth()); this.ScrollThumb.init("vertical"); this.ScrollThumb.onPress = scrollThumbDrag; this.ScrollThumb.onRelease = scrollThumbStopDrag; this.ScrollThumb.onReleaseOutside = scrollThumbStopDrag; //this.ScrollThumbMarks = this.attachMovie("ScrollThumbMarksVert","ScrollThumbMarks",this.getNextHighestDepth()); } public function setFieldName(p_fieldName:String):Void { this.fieldName = p_fieldName; this.ScrollBtnUp.fieldName = this.fieldName; this.ScrollBtnDown.fieldName = this.fieldName; } public function setStyle(textStyleNode:XMLNode){ var txtFont:String = textStyleNode.attributes.fontFamily; var txtColor:String = "#"+textStyleNode.attributes.color; var txtLinkColor:String = "#"+textStyleNode.attributes.linkColor; var txtSize:String = textStyleNode.attributes.size; var txtAlign:String = textStyleNode.attributes.align; if(txtFont == "Myriad Web Pro") this.txtField.embedFonts = true; else this.txtField.embedFonts = false; this.txtFieldStyle = new TextField.StyleSheet(); this.txtFieldStyle.setStyle("description", { fontFamily:txtFont, color:txtColor, fontSize:txtSize, textAlign:"left" }); this.txtFieldStyle.setStyle("groupDescription", { fontFamily:txtFont, color:txtColor, fontSize:txtSize, textAlign:"left" }); this.txtFieldStyle.setStyle("a:link", { color:txtLinkColor }); this.txtFieldStyle.setStyle("a:hover", { textDecoration:'underline' }); this.txtField.styleSheet = txtFieldStyle; } public function scrollTextUp(){ this.txtField.scroll--; var scrollPercentage:Number = (this.txtField.scroll-1)/this.txtField.maxscroll; this.ScrollThumb._y =(scrollPercentage*this._iScrollDistance)+this.ScrollLine._y; //this.ScrollThumbMarks._y = this.ScrollThumb._y + (this.ScrollThumb._height/2); } public function scrollTextDown(){ this.txtField.scroll++; var scrollPercentage:Number = (this.txtField.scroll)/this.txtField.maxscroll; this.ScrollThumb._y =(scrollPercentage*this._iScrollDistance)+this.ScrollLine._y; //this.ScrollThumbMarks._y = this.ScrollThumb._y + (this.ScrollThumb._height/2); } public function scrollTextOffset(offset:Number){ this.txtField.scroll = offset; } public function scrollThumbDrag(){ this.onEnterFrame = this._parent.checkScrollPos; this._parent._bScrollUsed = true; startDrag(this,false,this._x,this._parent.ScrollLine._y,this._x,this._parent._iScrollDistance+this._parent.ScrollLine._y); } public function scrollThumbStopDrag(){ this.onEnterFrame = null; stopDrag(); //this.ScrollThumbMarks._y = this.ScrollThumb._y + (this.ScrollThumb._height/2); } private function checkScrollPos(){ var scrollPercentage:Number = (this._y - this._parent.ScrollLine._y)/this._parent._iScrollDistance; var scrollOffset:Number = Math.floor(scrollPercentage*this._parent.txtField.maxscroll); this._parent.scrollTextOffset(scrollOffset+1); //this._parent.ScrollThumbMarks._y = this._parent.ScrollThumb._y + (this._parent.ScrollThumb._height/2); } public function setHeightWidth(h:Number, w:Number):Void { this._iControlWidth = w; this._iControlHeight = h; //this.ScrollingFieldBg.drawRectangle(w,h,7); //this.ScrollingFieldBg._x = 0; //this.ScrollingFieldBg._y = 0; //position text field within area this.txtField._x = this._iScrollFieldMargin; this.txtField._y = this._iScrollFieldMargin; //fit text to area this.txtField._width = w-this.ScrollBtnUp._width-(3*this._iScrollFieldMargin); this.txtField._height = h-(2*this._iScrollFieldMargin); //see if scroll bar is needed if(this.txtField.textHeight > (this.txtField._height-5)){ //position scroll buttons this.ScrollBtnUp._x = this.ScrollBtnDown._x = w - this._iScrollFieldMargin - this.ScrollBtnUp._width; this.ScrollBtnUp._y = this._iScrollFieldMargin; this.ScrollBtnDown._y = this.txtField._y + this.txtField._height - this.ScrollBtnUp._height; //position, size scroll line this.ScrollLine._height = this.txtField._height - (this.ScrollBtnUp._height*2) - 7; this.ScrollLine._x = this.ScrollBtnUp._x + (this.ScrollBtnUp._width/2); this.ScrollLine._y = this.ScrollBtnUp._y + this.ScrollBtnUp._height + 3; //set thumb height and position if(this.ScrollLine._height/this.txtField.maxscroll > 25) this.ScrollThumb.setHeight(this.ScrollLine._height/this.txtField.maxscroll); else this.ScrollThumb.setHeight(25); this._iScrollDistance = this.ScrollLine._height - this.ScrollThumb._height; //draw square behind scrollbar this.ScrollBarBg.clear(); //thickness:Number, rgb:Number, alpha:Number, pixelHinting:Boolean, noScale:String, capsStyle:String, jointStyle:String, miterLimit:Number this.ScrollBarBg.lineStyle(1, this._iScrollBarBorder, this._iScrollBarBorderAlpha, true, "none", "none", "miter", 1); this.ScrollBarBg.beginFill(this._iScrollBarFill,this._iScrollBarFillAlpha); this.ScrollBarBg.moveTo(this.ScrollLine._x - 6.8, this.ScrollLine._y - 2); this.ScrollBarBg.lineTo(this.ScrollLine._x + 6.5, this.ScrollLine._y - 2); this.ScrollBarBg.lineTo(this.ScrollLine._x + 6.5, this.ScrollLine._y + this.ScrollLine._height + 2); this.ScrollBarBg.lineTo(this.ScrollLine._x - 6.8, this.ScrollLine._y + this.ScrollLine._height + 2); this.ScrollBarBg.moveTo(this.ScrollLine._x - 6.8, this.ScrollLine._y - 2); this.ScrollBarBg.endFill(); if(!_bScrollUsed){ this.ScrollThumb._y = this.ScrollLine._y; //this.ScrollThumbMarks._y = this.ScrollThumb._y + (this.ScrollThumb._height/2); } else { var scrollPercentage:Number = (this.txtField.scroll)/this.txtField.maxscroll; this.ScrollThumb._y =(scrollPercentage*this._iScrollDistance)+this.ScrollLine._y; //this.ScrollThumbMarks._y = this.ScrollThumb._y + (this.ScrollThumb._height/2); } this.ScrollThumb._x = this.ScrollLine._x; //this.ScrollThumbMarks._x = this.ScrollThumb._x + 1; //make all scroll elements visible this.ScrollBtnUp._visible = this.ScrollBtnDown._visible = this.ScrollThumb._visible = this.ScrollLine._visible = true; } else{ this.ScrollBtnUp._visible = this.ScrollBtnDown._visible = this.ScrollThumb._visible = this.ScrollLine._visible = false; this.ScrollBarBg.clear(); } //if(this.txtField.textHeight > this.txtField._height) //trace("scroll bar"); } }

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