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43 lines
1.8 KiB
43 lines
1.8 KiB
About plugins
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Plugins are components with a GUI that perform some action for Krita.
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Note that plugins are only loaded when a KisView is constructed; note
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also that every plugin is reloaded when a new KisView is created.
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Plugins are _not_ allowed to depend on each other. You may _not_
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#include a header file from a plugin anywhere but in that same plugin.
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You can however choose to group a cluster of related functions in
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one plugin, like with the selection tools.
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There are several kinds of plugins for Krita:
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* Tools
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Tools have the Krita/Tool servicetype. A tool plugin registers
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the tool factories it provides with the tool registry. A tool must descend
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from the KisTool interface. There are several base classes for
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specialized tools, like painting and non painting tools.
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* Paintops
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Paintops implement methods for changing pixels that can be used
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by painting tools. Examples are brush, pen, airbrush. Paintop plugins
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have the Krita/Paintop servicetype, register paintop factories they
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provide the paintop registry. Paintops inherit KisPaintOp.
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* Filters
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Filters implement methods of changin a rectangular area of pixels. Filter
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plugins have the Krita/Filter servicetype and are registered with
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the filter registry. A filter inherits the KisFilter class and may
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provide a configuration widget and a configuration object.
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* Extensions
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Extensions are loaded by every view instance. They provide user interface
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elements such as dialog boxes and wizards. Their parent is KisView and
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they provide an .rc file to merge their gui with the view gui. Extensions
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have the servicetype Krita/Plugin. They are not loaded automatically by
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the KParts mechanism; please do not create ordinary kparts that are to
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be loaded by the Krita view since KParts are not versioned.
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