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Ttk_MakePadding(3tk)




Geometry(3)             Tk Themed Widget              Geometry(3)

_________________________________________________________________


NAME

     Ttk_MakeBox,   Ttk_PadBox,    Ttk_ExpandBox,    Ttk_PackBox,
     Ttk_StickBox,         Ttk_PlaceBox,         Ttk_BoxContains,
     Ttk_MakePadding,     Ttk_UniformPadding,     Ttk_AddPadding,
     Ttk_RelievePadding,                   Ttk_GetPaddingFromObj,
     Ttk_GetBorderFromObj,  Ttk_GetStickyFromObj  -   Tk   themed
     geometry utilities


SYNOPSIS

     #include <tkTheme.h>

     Ttk_Box
     Ttk_MakeBox(int x, int y, int width, int height);

     Ttk_Box
     Ttk_PadBox(Ttk_Box parcel, Ttk_Padding padding);

     Ttk_Box
     Ttk_ExpandBox(Ttk_Box parcel, Ttk_Padding padding);

     Ttk_Box
     Ttk_PackBox(Ttk_Box *cavity, int width, int height, Ttk_Side side);

     Ttk_Box
     Ttk_StickBox(Ttk_Box parcel, int width, int height, unsigned sticky);

     Ttk_Box
     Ttk_PlaceBox(Ttk_Box *cavity, int width, int height, Ttk_Side side, unsigned sticky);

     Ttk_Box
     Ttk_AnchorBox(Ttk_Box parcel, int width, int height, Tk_Anchor anchor);

     Ttk_Padding
     Ttk_MakePadding(short left, short top, short right, short bottom);

     Ttk_Padding
     Ttk_UniformPadding(short border);

     Ttk_Padding
     Ttk_AddPadding(Ttk_Padding padding1, Ttk_Padding padding2;

     Ttk_Padding
     Ttk_RelievePadding(Ttk_Padding padding, int relief);

     int
     Ttk_BoxContains(Ttk_Box box, int x, int y);

     int
     Ttk_GetPaddingFromObj(Tcl_Interp *interp, Tk_Window tkwin, Tcl_Obj *objPtr, Ttk_Padding *padding_rtn);

Tk                      Last change: 8.5                        1

Geometry(3)             Tk Themed Widget              Geometry(3)

     int
     Ttk_GetBorderFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr, Ttk_Padding *padding_rtn);

     int
     Ttk_GetStickyFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr, int *sticky_rtn);


ARGUMENTS

     Tk_Anchor anchor (in)                     One  of  the  sym-
                                               bolic    constants
                                               TK_ANCHOR_N,
                                               TK_ANCHOR_NE, etc.
                                               See
                                               Tk_GetAnchorFromObj(3).

     Ttk_Box * cavity (in/out)                 A      rectangular
                                               region  from which
                                               a parcel is  allo-
                                               cated.

     short border (in)                         Extra padding  (in
                                               pixels)   to   add
                                               uniformly to  each
                                               side of a region.

     short bottom (in)                         Extra padding  (in
                                               pixels)  to add to
                                               the  bottom  of  a
                                               region.

     Ttk_Box box (in)

     Ttk_Box * box_rtn (out)                   Specifies  a  rec-
                                               tangular region.

     int height (in)                           The height in pix-
                                               els of a region.

     Tcl_Interp * interp (in)                  Used   to    store
                                               error messages.

     int left (in)                             Extra padding  (in
                                               pixels)  to add to
                                               the left side of a
                                               region.

     Tcl_Obj * objPtr (in)                     String value  con-
                                               tains  a  symbolic
                                               name  to  be  con-
                                               verted    to    an
                                               enumerated   value
                                               or        bitmask.
                                               Internal  rep  may

Tk                      Last change: 8.5                        2

Geometry(3)             Tk Themed Widget              Geometry(3)

                                               be  be modified to
                                               cache  correspond-
                                               ing value.

     Ttk_Padding padding (in)

     Ttk_Padding * padding_rtn (out)           Extra  padding  to
                                               add  on the inside
                                               of a region.

     Ttk_Box parcel (in)                       A      rectangular
                                               region,  allocated
                                               from a cavity.

     int relief (in)                           One of  the  stan-
                                               dard   Tk   relief
                                               options
                                               (TK_RELIEF_RAISED,
                                               TK_RELIEF_SUNKEN,
                                               etc.).         See
                                               Tk_GetReliefFromObj.

     short right (in)                          Extra padding  (in
                                               pixles)  to add to
                                               the right side  of
                                               a region.

     Ttk_Side side (in)                        One             of
                                               TTK_SIDE_LEFT,
                                               TTK_SIDE_TOP,
                                               TTK_SIDE_RIGHT, or
                                               TTK_SIDE_BOTTOM.

     unsigned sticky (in)                      A bitmask contain-
                                               ing one or more of
                                               the           bits
                                               TTK_STICK_W (west,
                                               or          left),
                                               TTK_STICK_E (east,
                                               or          right,
                                               TTK_STICK_N
                                               (north,  or  top),
                                               and    TTK_STICK_S
                                               (south,  or   bot-
                                               tom).   TTK_FILL_X
                                               is  defined  as  a
                                               synonym        for
                                               (TTK_STICK_W|TTK_STICK_E),
                                               TTK_FILL_Y   is  a
                                               synonym        for
                                               (TTK_STICK_N|TTK_STICK_S),
                                               and  TTK_FILL_BOTH

Tk                      Last change: 8.5                        3

Geometry(3)             Tk Themed Widget              Geometry(3)

                                               and  TTK_STICK_ALL
                                               are  synonyms  for
                                               (TTK_FILL_X|TTK_FILL_Y).
                                               See also: grid(n).

     Tk_Window tkwin (in)                      Window       whose
                                               screen    geometry
                                               determines     the
                                               conversion between
                                               absolute units and
                                               pixels.

     short top (in)                            Extra  padding  at
                                               the   top   of   a
                                               region.

     int width (in)                            The width in  pix-
                                               els of a region.

     int x (in)                                X  coordinate   of
                                               upper-left  corner
                                               of region.

     int y (in)                                Y  coordinate   of
                                               upper-left  corner
                                               of region.
_________________________________________________________________


BOXES

     The Ttk_Box structure represents a rectangular region  of  a
     window:
          typedef struct {
              int x;
              int y;
              int width;
              int height;
          } Ttk_Box;
     All coordinates are relative to the window.

     Ttk_MakeBox is  a  convenience  routine  that  contsructs  a
     Ttk_Box  structure  representing a region width pixels wide,
     height pixels tall, at the specified x, y coordinates.

     Ttk_PadBox returns a new box located  inside  the  specified
     parcel, shrunken according to the left, top, right, and bot-
     tom margins specified by padding.

     Ttk_ExpandBox is the inverse of Ttk_PadBox:   it  returns  a
     new  box surrounding the specified parcel, expanded  accord-
     ing to the left, top, right, and bottom margins specified by
     padding.

Tk                      Last change: 8.5                        4

Geometry(3)             Tk Themed Widget              Geometry(3)

     Ttk_PackBox allocates a parcel width by height  pixels  wide
     on  the specified side of the cavity, and shrinks the cavity
     accordingly.

     Ttk_StickBox places a  box  with  the  requested  width  and
     height inside the parcel according to the sticky bits.

     Ttk_PlaceBox  combines  Ttk_PackBox  and  Ttk_StickBox:   it
     allocates  a  parcel  on  the  specified side of the cavity,
     places a box of the requested size inside the parcel accord-
     ing to sticky, and shrinks the cavity.

     Ttk_AnchorBox places a box  with  the  requested  width  and
     height  inside  the parcel according to the specified anchor
     option.

     Ttk_BoxContains tests if the specified x, y coordinate  lies
     within the rectangular region box.


PADDDING

     The Ttk_Padding structure  is  used  to  represent  borders,
     internal padding, and external margins:
          typedef struct {
              short left;
              short top;
              short right;
              short bottom;
          } Ttk_Padding;

     Ttk_MakePadding is a convenience routine that  contsructs  a
     Ttk_Padding  structure  with the specified left, top, right,
     and bottom components.

     Ttk_UniformPadding constructs a Ttk_Padding  structure  with
     all components equal to the specified border.

     Ttk_AddPadding adds two Ttk_Paddings together and returns  a
     combined  padding  containing the sum of the individual pad-
     ding components.

     Ttk_RelievePadding adds an extra 2 pixels of padding to pad-
     ding  according  to  the  specified  relief.   If  relief is
     TK_RELIEF_SUNKEN, adds two pixels at the top and left so the
     inner  region  is  shifted  down  and to the left.  If it is
     TK_RELIEF_RAISED, adds two pixels at the bottom and right so
     the inner region is shifted up and to the right.  Otherwise,
     adds 1 pixel on all sides.  This is typically used  in  ele-
     ment geometry procedures to simulate a "pressed-in" look for
     pushbuttons.


CONVERSION ROUTINES


Tk                      Last change: 8.5                        5

Geometry(3)             Tk Themed Widget              Geometry(3)

     Ttk_GetPaddingFromObj converts the string  in  objPtr  to  a
     Ttk_Padding  structure.  The string representation is a list
     of up to four length specifications "left top right bottom".
     If  fewer  than four elements are specified, bottom defaults
     to top, right defaults to left, and top  defaults  to  left.
     See Tk_GetPixelsFromObj(3) for the syntax of length specifi-
     cations.

     Ttk_GetBorderFromObj is the  same  as  Ttk_GetPaddingFromObj
     except  that  the  lengths  are specified as integers (i.e.,
     resolution-dependant values like 3m are not allowed).

     Ttk_GetStickyFromObj converts the  string  in  objPtr  to  a
     sticky  bitmask.   The  string  contains zero or more of the
     characters n, s, e, or w.


SEE ALSO

     Tk_GetReliefFromObj(3),              Tk_GetPixelsFromObj(3),
     Tk_GetAnchorFromObj(3)


KEYWORDS

     geometry, padding, margins, box, region, sticky, relief

Tk                      Last change: 8.5                        6


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