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The easiest and simplest way to expose this is through an attached property. We already provide some extensions in the Text class like noesis:Text.Placeholder, so we can add a new one for this:<TextBlock noesis:Text.RichText="This is an [b]example[/b] of rich text"/> |
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Hello, wondering if we can get an ETA on this? |
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We had to remove this from 3.0.X because stabilizing 3.1.X has become the top priority. Also, this feature is going to be an example in the Application framework, I am not even sure if the syntax we are going to use will be what you need (we are considering using something like markdown) or even if it will have all the features you need. So probably we could have a call about this, we can provide a minimal template that you can improve. Or wait for our example, but I am pretty sure you will add modifications. |
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The idea is having an attached property:<TextBlock local:TextHelpers.FormattedText="To [B]shoot[/B] something, hold [INPUT:AIM_WEAPON] and then press [INPUT:FIRE_GUN]."/> With a property changed callback that processes the original string and generates the corresponding inlines, something like this: static void OnFormattedTextChanged(DependencyObject* d, const DependencyPropertyChangedEventArgs& e)
{
TextBlock* textBlock = DynamicCast<TextBlock*>(d);
if (textBlock != nullptr)
{
InlineCollection* inlines = textBlock->GetInlines();
inlines->Clear();
const String& str = e.NewValue<String>();
Vector<Token> tokens = ParseFormattedText(str.Str());
for (Token token: tokens)
{
switch (token.type)
{
case TokenType_Run:
inlines->Add(MakePtr<Run>(token.text.Str()));
break;
case TokenType_Bold:
inlines->Add(MakePtr<Bold>(MakeRun<Run>(token.text.Str())));
break;
case TokenType_Image:
Ptr<Image> image = MakePtr<Image>();
image->SetSource(token.imageSource);
inlines->Add(MakePtr<InlineUIContainer>(image));
break;
...
}
}
}
} |
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We can extend this even with support for generating bindings automatically, for example, given the following formatted string:The cost of fuel is: [b]{Fuel.Cost}[/b]We can generate something like this: <TextBlock>
<Run Text="The cost of fuel is:"/>
<Bold><Run Text="{Binding Fuel.Cost}"/></Bold>
</TextBlock>That will automatically bind to the TextBlock data context. |
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Related to this forum post: https://www.noesisengine.com/forums/viewtopic.php?p=14304&hilit=1963#p14253 |
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We have created an example RichText attached property, which will be included in an upcoming release. I've attached the example here in case you wish to start using it. This example is ready for use in production, and can be easily modified to support new BBCode tags. Documentation for use of the attached property, and for extending the BBCode tag support, can be found in comments within the RichText.h and RichText.cpp files. |
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Updated example, with an XML namespace correction. |
- Anonymous
