tdegraphics/kpovmodeler/StyleConvention

        Coding Style Convention
       -------------------------

This document describes the coding style convention
used in KPovModeler.

Author: Andreas Zehender <zehender@kde.org>
Date: 16 June 2001

If you edit existing files or create new ones, please follow this convention.
This ensures that the code is consistent and clear.

1) Indentation
--------------

- Use 3 spaces as basic offset. Do not use tabs for indentation.
- Do not indent access keywords (public, protected, private) as
  well as signal/slot keywords.
- Do not indent braces.
- Put braces in separate lines.
- Indent case statements.

Example:
class abcd
{
public:
   void someMethod( );
};

void abcd::someMethod( )
{
   if( 1 == 2 )
   {
   }
   else
   {
      switch( x )
      {
         case 1:
            y = 2;
            break;
         default:
            y = -2;
      }
   }
}


2) Spacing
----------

Use many spaces.
Use it
- before and after brackets
- before and after operators
- after commas

Examples:

a = someMethod( ); // Notice the space between the brackets!
b = anotherMethod( ( a + b ) / 2, 3 ) || 23456;
if( ( a == 2 ) && !b )


3) Type Modifiers (Pointers and References)
-------------------------------------------

Put type modifiers behind the type, not before the variable name.

Example:

const QString& type;
PMObject* obj;


4) Names
--------

Variables:
----------
Member variables begin with "m_".
Static variables begin with "s_".
Member pointers begin with "m_p".

All variables begin with a lower case (member variables after the "m_").
Use upper case character to separate different words.

Examples:

class abcd
{
   int m_firstMember;
   char* m_pFirstMember;
   static const char* s_pAStaticPointerToConstCharThatMeansItIsAString;
};

void abcd::efgh( )
{
   int aLocalVariable;
}

Classes:
--------
All classes start with "PM" and a upper case character.

Methods:
--------
All methods start with a lower case character.

Set methods begin with "set".
Get methods do NOT begin with "get".

Examples:

int PMSPhere::centre( ) const;
void PMSphere::setCentre( );

5) KDoc Comments
----------------

Use KDoc comments to document classes.

Don't add a description if you just overload a virtual function
that doesn't add some functionality.

Example:

/** Returns the internal object name (not i18n'ed) */
virtual PMObject::className( ) const;

/** */
virtual PMSphere::className( ) const;

KDoc will then generate the following output:

<documentation>
PMObject*  newObject ( ) 

[const virtual]

Reimplemented from PMObject.
</documentation>


6) Long Lines
--------------
Try to use only 80 characters per line.


7) Sample .emacs File
---------------------

Here is a sample .emacs file. It is a mix of several files, so some
things are set multiple times. But it works :-)

<.emacs>
(defconst my-c-style
  '((c-tab-always-indent           . t)
    (c-comment-only-line-offset    . 0)
    (c-hanging-braces-alist        . ((substatement-open after)
                                      (brace-list-open)))
    (c-hanging-colons-alist        . ((member-init-intro before)
                                      (inher-intro)
                                      (case-label after)
                                      (label after)
                                      (access-label after)))
    (c-cleanup-list                . (scope-operator
                                      empty-defun-braces
                                      defun-close-semi))
    (c-offsets-alist               . ((arglist-close     . c-lineup-arglist)
                                      (substatement-open . 0)
                                      (case-label        . +)
                                      (block-open        . 0)
                                      (knr-argdecl-intro . -)
				      (inline-open       . 0)))
    (c-echo-syntactic-information-p . t)
    )
  "My C Programming Style")
  
;; Customizations for all of c-mode, c++-mode, and objc-mode
(defun my-c-mode-common-hook ()
  ;; add my personal style and set it for the current buffer
  (c-add-style "PERSONAL" my-c-style t)
  ;; offset customizations not in my-c-style
  (c-set-offset 'member-init-intro '++)
  ;; other customizations
  (set tab-width 8
        ;; this will make sure spaces are used instead of tabs
        indent-tabs-mode nil)
  (set c-basic-offset 3)
  ;; we like auto-newline and hungry-delete
  (c-toggle-hungry-state 1)
  ;; keybindings for C, C++, and Objective-C.  We can put these in
  ;; c-mode-map because c++-mode-map and objc-mode-map inherit it
  (define-key c-mode-map [f9] 'compile)
  (define-key c-mode-map [return] 'newline-and-indent)
  (define-key c++-mode-map [f9] 'compile)
  (define-key c++-mode-map [return] 'newline-and-indent)
  (define-key java-mode-map [f9] 'compile)
  (define-key java-mode-map [return] 'newline-and-indent)
  (load-library "vc")
  
  ;;for QT
  (set c-C++-access-key "\\<\\(Q_SIGNALS\\|public\\|protected\\|private
  \\|public Q_SLOTS\\|protected Q_SLOTS\\|private Q_SLOTS\\)\\>[ \t]*:")
  ;; modify the colour of Q_SLOTS to match public, private, etc ...
  (font-lock-add-keywords 'c++-mode
  '(("\\<\\(Q_SLOTS\\|Q_SIGNALS\\)\\>" . font-lock-type-face)))
  ;; make new font for rest of qt keywords
  (make-face 'qt-keywords-face)
  (set -face-foreground 'qt-keywords-face "green")
  ;; qt keywords
  (font-lock-add-keywords 'c++-mode
  '(("\\<Q_OBJECT\\>" . 'qt-keywords-face)))
  (font-lock-add-keywords 'c++-mode
  '(("\\<SIGNAL\\|SLOT\\>" . 'qt-keywords-face)))
  (font-lock-add-keywords 'c++-mode
  '(("\\<Q[A-Z][A-Za-z]*" . 'qt-keywords-face)))
  )
   
(set auto-mode-alist
         (append '(("\\.h$"    . c++-mode)) auto-mode-alist))

</.emacs>