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Update BuildingUI.md - Form asElement to create the back #3

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Update BuildingUI.md - Form asElement to create the back #3

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18 changes: 5 additions & 13 deletions Chapters/BuildingUI.md
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Original file line number Diff line number Diff line change
Expand Up @@ -171,16 +171,14 @@ BlElement << #MGCardElement
```

We redefine the `initialize` method to create the `backElement` as well as adding a layout for
placement of the children of the `MGCardElement` instances.
placement of the children of the `MGCardElement` instances.
We use the method `asElement` on the cardback `Form` to quicly create a BlElement with the png as a background and the size equal to the png size.


```
MGCardElement >> initialize
super initialize.
backElement := BlElement new
background: self class cardbackForm;
size:self cardExtent;
yourself.
backElement := self class cardbackForm asElement.
self size: self cardExtent.
self layout: BlLinearLayout new alignCenter.
self background: self backgroundPaint.
Expand All @@ -193,10 +191,7 @@ MGCardElement >> initialize
In the following added part:

```
backElement := BlElement new
background: self class cardbackForm;
size:self cardExtent;
yourself.
backElement := self class cardbackForm asElement.
frontElement := BlTextElement new.
```

Expand All @@ -222,10 +217,7 @@ We extract the back element creation in its own method `initializeBackElement`.

```
MGCardElement >> initializeBackElement
backElement := BlElement new
background: self class cardbackForm;
size: self cardExtent;
yourself
backElement := self class cardbackForm asElement
```

```
Expand Down