Pharo Smalltalk:从 TextMorph 读取 [英] Pharo Smalltalk: Reading from TextMorph

问题描述

在使用 Pharo 的 Smalltalk 中，我正在创建一个读取用户输入并执行 X 的应用程序.

In Smalltalk using Pharo, I'm creating an application that reads the user input and does X.

到目前为止，我已经设法制作了一个用户可以输入值的 TextMorph，但我不确定如何从 TextMorphs 读取数据，然后对值进行处理.

So far I've managed to make a TextMorph that a user could enter a value into, but I'm unsure of how to read from TextMorphs and then do something with the value.

有什么想法吗?

谢谢

推荐答案

好吧，您可以简单地将 text 发送到您的变形并获取其内容.所以你可以有一个按钮，当你按下按钮时，你可以对内容做一些事情:

Well, you can simply send text to your morph and get it's contents. So you could have a button and when button is pressed you do something with contents:

input := TextMorph new.
button :=
   SimpleButtonMorph new
      target: self
      actionSelector: #processTextMorph:;
      arguments: {input};
      yourself.

processTextMorph: aTextMorph
   | contents |
   contents := aTextMorph text.
   "do something with contents"

但是，也许您想使用对话框?因为你可以:

However maybe you want to use a dialog? Because you can do:

response := UIManager default request: 'What do you want to do?'.
response ifNotNil: [ "do something with the response" ]

然后执行UIManager default request: '...' 将打开一个带有文本输入的对话框

And then the execution of UIManager default request: '…' will open a dialog with a text input

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