Je souhaite être en mesure d'écrire un paragraphe dans un champ de texte, puis de cliquer et maintenir, ou de faire un geste similaire, et de sélectionner le paragraphe entier. Je vais ensuite le faire glisser (en utilisant bitmapdata ou autre) dans un autre champ de texte. Pour ce faire, je dois être capable de détecter la fin d'un paragraphe donné. Donc j'essaye de faire cela avec le code suivant, qui recherche "\ n" dans le texte. Ce n'est pas le trouver. Quelqu'un peut-il voir pourquoi (ou suggérer une autre technique pour le faire)?Détection d'un saut de ligne dans l'entrée AS3 TextField
TIA,
David
package
{
import flash.display.Sprite;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.text.TextField;
import flash.text.TextFieldType;
import view.controls.CustomButton;
public class Main extends Sprite
{
private var bt:CustomButton;
private var tf:TextField;
public function Main()
{
tf = new TextField();
tf.name = "tfield";
tf.type = TextFieldType.INPUT;
tf.width = 400;
tf.height = 200;
tf.x = 100;
tf.y = 100;
tf.selectable = true;
tf.border = true;
tf.background = true;
tf.backgroundColor = 0xFFFFFF;
tf.multiline = true;
tf.text = "Like most of the things I get excited about and share with you, this technique really doesn’t have much to it, but I love its elegance, how it works in the background and gets out of your way. While it’s really simple I think this one is a real gem, ’cause when you look at a class that uses it, it looks like magic!\n\nOkay, so you know how when you’re writing a site or app that’s of a small to medium scale, you default to storing data in XML, and you map that XML to model classes, usually pretty directly? Or, maybe you use a configuration file for your site to load in some constants or something, and XML is a pretty easy choice for this. With E4X you can really parse through that XML quickly.";
tf.wordWrap = true;
addChild(tf);
bt = new CustomButton("Detect", 0xFFFFFF, 0x000000,50,20);
bt.x = 250;
bt.y = 350;
addChild(bt);
addEventListener(Event.ADDED_TO_STAGE, init);
}
private function init(e:Event):void
{
bt.addEventListener(MouseEvent.CLICK, clickHandler);
}
private function clickHandler(e:MouseEvent):void
{
var lineBreak:int = tf.text.indexOf("\n");
trace(lineBreak);
}
}
}
//custom button class
package view.controls
{import flash.display.GradientType; import flash.display.SimpleButton; import flash.display.Sprite; import flash.display.Stage; import flash.events.Event; import flash.geom.Matrix; import flash.text.TextField; import flash.text.TextFormat; import flash.text.TextFormatAlign;
public class CustomButton extends Sprite
{
private var textColor:uint = 0x000000;
private var myColor:uint = 0xFEEE9E9;
private var btnWidth:Number;
private var btnHeight:Number;
public function CustomButton(buttonText:String, gradientColor:uint, borderColor:uint, myBtnWidth:Number, myBtnHeight:Number)
{
var colors:Array = new Array();
var alphas:Array = new Array(1, 1);
var ratios:Array = new Array(0, 255);
var gradientMatrix:Matrix = new Matrix();
var lineThickness:Number = 1;
//var myColor:uint = 0xFF0000;
gradientMatrix.createGradientBox(myBtnWidth, myBtnHeight, Math.PI/2, 0, 0);
this.btnWidth = myBtnWidth;
this.btnHeight = myBtnHeight;
var ellipseSize:int = 20;
var btnUpState:Sprite = new Sprite();
colors = [0xFFFFFF, myColor];
//btnUpState.graphics.lineStyle(1, brightencolor(myColor, -500));
btnUpState.graphics.lineStyle(lineThickness, borderColor);
btnUpState.graphics.beginGradientFill(GradientType.LINEAR, colors, alphas, ratios, gradientMatrix);
btnUpState.graphics.drawRoundRect(0, 0, myBtnWidth, myBtnHeight, ellipseSize, ellipseSize);
btnUpState.addChild(createButtonTextField(buttonText, textColor));
//
var btnOverState:Sprite = new Sprite();
colors = [0xFFFFFF, brightencolor(myColor, 50)];
//btnOverState.graphics.lineStyle(1, brightencolor(myColor, -50));
btnOverState.graphics.lineStyle(lineThickness, borderColor);
btnOverState.graphics.beginGradientFill(GradientType.LINEAR, colors, alphas, ratios, gradientMatrix);
btnOverState.graphics.drawRoundRect(0, 0, myBtnWidth, myBtnHeight, ellipseSize, ellipseSize);
btnOverState.addChild(createButtonTextField(buttonText, textColor))
//
var btnDownState:Sprite = new Sprite();
//colors = [brightencolor(myColor, -15), brightencolor(myColor, 50)];
btnDownState.graphics.lineStyle(lineThickness, borderColor);
btnDownState.graphics.beginGradientFill(GradientType.LINEAR, colors, alphas, ratios, gradientMatrix);
btnDownState.graphics.drawRoundRect(0, 0, myBtnWidth, myBtnHeight, ellipseSize, ellipseSize);
btnDownState.addChild(createButtonTextField(buttonText, textColor))
//
this.btnWidth = myBtnWidth;
this.btnHeight = myBtnHeight;
var myButton:SimpleButton = new SimpleButton(btnUpState, btnOverState, btnDownState, btnOverState);
myButton.name = buttonText;
addChild(myButton);
}
private function createButtonTextField(Text:String, textcolor:uint):TextField {
var myTextField:TextField = new TextField();
myTextField.textColor = textcolor;
myTextField.selectable = false;
myTextField.width = btnWidth;
myTextField.height = btnHeight;
var myTextFormat:TextFormat = new TextFormat();
myTextFormat.align = TextFormatAlign.CENTER;
myTextFormat.font = "Arial";
myTextFormat.size = 12;
myTextField.defaultTextFormat = myTextFormat;
myTextField.text = Text;
myTextField.x = (btnWidth/2)-(myTextField.width/2);
myTextField.y = 1;
return myTextField;
}
private function brightencolor(color:int, modifier:int):int {
var hex:Array = hexToRGB(color);
var red:int = keepInBounds(hex[0]+modifier);
var green:int = keepInBounds(hex[1]+modifier);
var blue:int = keepInBounds(hex[2]+modifier);
return RGBToHex(red, green, blue);
}
private function hexToRGB (hex:uint):Array {
var colors:Array = new Array();
colors.push(hex >> 16);
var temp:uint = hex^colors[0] << 16;
colors.push(temp >> 8);
colors.push(temp^colors[1] << 8);
return colors;
}
private function keepInBounds(number:int):int {
if (number < 0) number = 0;
if (number > 255) number = 255;
return number;
}
private function RGBToHex(uR:int, uG:int, uB:int):int {
var uColor:uint;
uColor = (uR & 255) << 16;
uColor += (uG & 255) << 8;
uColor += (uB & 255);
return uColor;
}
}
}
Incroyable. Clair et concis. Merci. – David
De rien! – Aaron
En y repensant, c'est probablement faisable sans la partie entière curParagraphOffset, mais j'étais en sécurité. – Aaron