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93 Zeilen
2.9 KiB
93 Zeilen
2.9 KiB
Since 1999, people have been hacking on Chalk. Everyone brought their
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own coding style, their own code conventions, their own likes and
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dislikes. Me, (Boudewijn that is), I like indents of four spaces, and
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no scope prefixes for variables. However, in the interests of
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consistency, these are the rules new code should adhere to:
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Indentation
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With four spaces. Use the default Java indentation
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style of (X)Emacs or KDevelop -- also for brace placement.
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Includes
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Avoid as much as possible #includes in header files; use forward declarations
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of classes.
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Initializers
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Avoid as much as possible initializers in the body of the constructor. Use
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initializer lists instead.
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Scope prefixes
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Use only m_ for class-level variables. No other scope prefixes; no g_, l_,
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no 'p' for pointer variables.
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Shared pointers
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Use shared pointers wherever possible.
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Getter/setter
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Chalk doesn't use Qt's properties -- yet. If you want to introduce use of
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properties, convert any and all classes in Chalk before committing.
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Getter/setters are named 'x() for getters and setX(int x) for setters. If you
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come across violations of this rule, change the code.
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Class naming
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If you use a well-known design pattern, name the class according to the design
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pattern. All files should start with 'kis_', all classes with the 'Kis' prefix.
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In filenames, separate words with an underscore; in classnames use capital letters.
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Example: kis_new_class.h/KisNewClass.
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The only exception to this rule are interfaces.
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Example: kis_tool.h/KisToolInterface.
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Function naming
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Functions should be named in camelBackedFashion, to conform to Qt's standards.
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If you encounter functions in c_style_like_this, feel free to rename. Also:
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verbNoun -- i.e., rotateLayer, not layer_rotate. The latter is a true c-ism,
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introduced by a language that needs to prefix the 'class' name to every function
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in order to have something that not quite OO.
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Variable/Parameter names
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Variable/parameter names start with an undercast letter. A name composed of different
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words is done in camelBackedStyle.
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Designer
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Chalk has started to use designer. All dialogs and all widgets that have a layout
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manager must be done in designer. We don't add code nor add signal/slot connections
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in designer
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Enums
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All enums should be prefixed with 'enum'.
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Namespaces
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Currently, we only use anonymous (right term?) namespaces for things like undo
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commands. For the rest, some classes have a 'Kis' prefix, others don't. This should
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be made consistent, and we might want to use namespaces to keep all of Chalk
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inside.
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Files and classes
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It's preferred (and strongly preferred) to have only one class per .h/.cpp file.
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(Which is logical, because otherwise you won't be able to keep to the naming scheme.)
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Spaces
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Keep the source airy and open. (However, maybe I was wrong in wanting spaces around ->...)
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Slots and Q_SIGNALS
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Prefix Q_SLOTS with slot and Q_SIGNALS with sig: slotUpdateSelection, sigSelectionUpdated.
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Boudewijn Rempt |