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Stile (angelehnt an CSS Stile)

Das Stil-Feature ist derzeit in einer Testphase.

Begnnend mit Version 1.2019.9 sind Stile standardmäßig aktiviert für Mindmap- und WBS Diagramme.

Für ältere Diagramme und ältere PlantUML-Versionen, muss skinparam useBetaStyle true im Diagramm aktiviert werden, um dieses Feature nutzen zu können. PlantUML-Versionen ab 1.2019.9 sind Stile standardmäßig aktiviert.

Auf dieser Seite finden Sie einige Beispiele für die Arbeit mit Stilen.

WARNING

 This translation need to be updated. 

WARNING

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Problem to solve

skinparam can change the rendering of diagrams (fonts, colors...):

• skinparams allow global changes for a whole diagram
• you can use <<stereotype>> to define specific settings for groups of elements with the same stereotype
• you can use creole syntax to individually change some setting

But it has some important limitations:

• every kind of diagram (sequence, class, activity) has its own skinparams
• there is an explosion of possible skinparams (see plantuml-skinparam for an attempt to grok them)
• some elements cannot be stereotyped (for example, messages in sequence diagrams)

style has the following features:

• The possibility to use individual change everywhere (so probably with creole engine which will be kept).
• The possibility to change a setting (for example default font size, color, name...) for all diagrams without separate settings for Sequence, Class, Activity, etc.
• At the same time, the possibility to change a setting for a specific diagram type (only Sequence for example).
• Having a syntax close to CSS
• No more hardcoded values (size, color...) in the core PlantUML library. Those values are stored in one single plantuml.skin file that people can read and modify.
• Keep it simple: since nobody is reading the documentation (which is often out-of-date anyway), people should understand the style system just by reading examples.
• Avoid combinatorial explosion in style naming.

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Properties that can be styled

The following properties can be set in style:

• FontName
• FontColor
• FontSize
• FontStyle
• BackGroundColor
• HyperLinkColor
• LineColor (old BorderColor) : seems more generic
• LineThickness
• LineStyle (old BorderStyle): on real number or two real numbers separated with -
• Padding
• Margin
• RoundCorner
• DiagonalCorner
• ExportedName : used for some format (SVG), not implemented
• Image : not implemented
• ImagePosition : not implemented
• MinimumWidth : not implemented
• WordWrap (to be renamed as MaximumWidth) (add carriage return if needed)
• HorizontalAlignment : left, right or center
• ...

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Current Working Model

The current model has moved to work similarly to CSS, using a model of scoping and cascading styles to either element types or user-assigned styles (via <<stereotype>> notation).

Style can be inlined using <style> and </style> separators.

It is also possible to store style definition in some external file and to reference it using <style file=MyOwnFile.css>.

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Basic styling for elements

Basic example of a Sequence Diagram style

🎉 Copied!

@startuml ' style enclosure declaration <style> ' scope to sequenceDiagram elements sequenceDiagram { ' scope to actor element types actor { FontColor Blue } } } </style> ' printed in blue actor Bob ' also printed in blue actor Sally @enduml

Basic example of a Work Breakdown Structure style

Let's at a different example, that of a Work Breakdown Structure:

🎉 Copied!

@startwbs <style> ' this time, scoping to wbsDiagram wbsDiagram { ' Here we introduce a global style, i.e. not targeted to any element ' thus all lines (meaning connector and borders, ' there are no other lines in WBS) are black by default Linecolor black ' But we can also target a diagram specific element, like arrow arrow { ' note that Connectors are actually "Arrows"; this may change in the future ' so this means all Connectors and Arrows are now going to be green LineColor green } } </style> * World ** America *** Canada ** Europe *** England *** Germany *** Spain @endwbs

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Adding user defined style targets (stereotype)

We can extend these examples to start targeting not just element types, but specific elements.

Using user defined styles in a Sequence Diagram

With shown stereotype

🎉 Copied!

@startuml ' style enclosure declaration <style> ' scope to sequenceDiagram elements sequenceDiagram { ' scope to actor element types actor { FontColor Blue } ' define a new style, using CSS class syntax .myStyle { FontColor Red } } </style> ' printed in blue actor Bob ' this will now be printed in Red actor Sally <<myStyle>> @enduml

With not shown stereotype

🎉 Copied!

@startuml hide stereotype ' style enclosure declaration <style> ' scope to sequenceDiagram elements sequenceDiagram { ' scope to actor element types actor { FontColor Blue } ' define a new style, using CSS class syntax .myStyle { FontColor Red } } </style> ' printed in blue actor Bob ' this will now be printed in Red actor Sally <<myStyle>> @enduml

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Using Dynamic Selectors

NOTE: This section is still very experimental and may change!

As we are following the CSS model now, then it should be possible to use selectors to simplify targeting groups of elements, like those "children" (or "downstream") of a given element in diagrams like Work Breakdown or MindMaps.

Using the depth selector in a WBS

🎉 Copied!

@startwbs <style> wbsDiagram { ' all lines (meaning connector and borders, there are no other lines in WBS) are black by default Linecolor Black arrow { ' Note that connector are actually "arrows" even if they don't look like arrows ' This is to be consistent with other UML diagrams. Not 100% sure that it's a good idea ' So now connectors are green at this level LineColor Green } :depth(0) { ' will target the "root" (first level) node, ' AND root level elements like Arrows (styled by Line styles) ' Note how it will override the BackgroundColor White RoundCorner 10 LineColor red } arrow { :depth(2) { ' Targetting only connector between Mexico-Chihuahua and USA-Texas LineColor blue LineStyle 4 LineThickness .5 } } node { :depth(2) { ' Targetting the Lines at a depth of 2 LineStyle 2 LineThickness 2.5 } } } </style> * World ** America *** Canada *** Mexico **** Chihuahua *** USA **** Texas ***< New York ** Europe *** England *** Germany *** Spain @endwbs

Using the "descendant" pseudo selector

Of course, sometimes you want to target all "child" (or "downstream") elements of a given element. The * selector works as in CSS, to say: "this element, and all elements of any type that is it's child".

An example:

🎉 Copied!

@startwbs <style> wbsDiagram { Linecolor black arrow { LineColor green } :depth(1) { BackgroundColor White RoundCorner 10 LineColor red } .mexicoStyle * { BackgroundColor Red FontColor White RoundCorner 10 } } </style> * World ** America *** Canada *** Mexico <<mexicoStyle>> **** Chihuahua *** USA **** Texas ***< New York ** Europe *** England *** Germany *** Spain @endwbs

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Using an external style file

NOTE: This is still a work in progress, and may not work as expected.

If a file named plantuml.skin is found in the same folder as the diagram, it will attempt to be loaded and used during diagram creation. This lays the groundwork--along with scoping styles to specific diagrams, and user defined styles--for creating truly complex and persistent styles, without including them in each of your diagrams.

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Getting debug output

NOTE: This is still a work in progress, and may not show every element in every diagram.

You can use the -v (or -verbose) command line argument to get some debug output to help you determine what elements are in use, so you can target them.

java -jar plantuml.jar -v -tpng diagram.pu

results in:

(0.378 - 256 Mo) 238 Mo - Using style node.depth(0).root.wbsdiagram.rootnode.element
(0.546 - 256 Mo) 237 Mo - Using style depth(2).node.root.wbsdiagram.leafnode.element
(0.547 - 256 Mo) 237 Mo - Using style depth(2).node.root.*.wbsdiagram.element
(0.560 - 256 Mo) 236 Mo - Using style node.root.depth(3).wbsdiagram.leafnode.element
(0.561 - 256 Mo) 236 Mo - Using style node.root.depth(3).*.wbsdiagram.mexicostyle.element
(0.562 - 256 Mo) 236 Mo - Using style node.root.depth(3).*.wbsdiagram.element
(0.565 - 256 Mo) 236 Mo - Using style depth(2).node.root.wbsdiagram.mexicostyle.element
(0.569 - 256 Mo) 235 Mo - Using style depth(2).node.root.wbsdiagram.element
(0.571 - 256 Mo) 235 Mo - Using style node.depth(1).root.wbsdiagram.element
(0.572 - 256 Mo) 235 Mo - Using style node.depth(1).root.*.wbsdiagram.element
(1.963 - 256 Mo) 250 Mo - Using style depth(0).arrow.root.wbsdiagram.element
(1.964 - 256 Mo) 250 Mo - Using style depth(1).arrow.root.wbsdiagram.element
(1.965 - 256 Mo) 250 Mo - Using style depth(2).arrow.root.wbsdiagram.element