bionic (3) ttk_image.3tk.gz

Provided by: tk8.6-doc_8.6.8-4_all bug

NAME

       ttk_image - Define an element based on an image

SYNOPSIS

       ttk::style element create name image imageSpec ?options?
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DESCRIPTION

       The  image  element  factory  creates  a  new  element  in  the  current theme whose visual appearance is
       determined by Tk images.  imageSpec is a list of one or more elements.  The first element is the  default
       image name.  The rest of the list is a sequence of statespec / value pairs specifying other images to use
       when the element is in a particular state or combination of states.

OPTIONS

       Valid options are:

       -border padding
              padding is a list of up to four integers, specifying the left, top,  right,  and  bottom  borders,
              respectively.   If  fewer than four elements are specified, bottom defaults to top, right defaults
              to left, and top defaults to left.  In other words, a list of  three  numbers  specify  the  left,
              vertical,  and right border; a list of two numbers specify the horizontal and the vertical border;
              a single number specifies the same border all the way around the element.  See  IMAGE  STRETCHING,
              below.

       -height height
              Specifies a minimum height for the element.  If less than zero, the base image's height is used as
              a default.

       -padding padding
              Specifies the  element's  interior  padding.   The  padding  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.  In other words, a list of three numbers
              specify  the  left,  vertical, and right padding; a list of two numbers specify the horizontal and
              the vertical padding; a single number specifies the same padding all the way  around  the  widget.
              Defaults to -border if not specified.

       -sticky spec
              Specifies  how the image is placed within the final parcel.  spec contains zero or more characters
              “n”, “s”, “w”, or “e”.

       -width width
              Specifies a minimum width for the element.  If less than zero, the base image's width is used as a
              default.

IMAGE STRETCHING

       If  the element's allocated parcel is larger than the image, the image will be placed in the parcel based
       on the -sticky option.  If the image needs to stretch  horizontally  (i.e.,  -sticky  ew)  or  vertically
       (-sticky ns), subregions of the image are replicated to fill the parcel based on the -border option.  The
       -border divides the image into 9 regions: four fixed corners, top and left  edges  (which  may  be  tiled
       horizontally),  left  and right edges (which may be tiled vertically), and the central area (which may be
       tiled in both directions).

EXAMPLE

              set img1 [image create photo -file button.png]
              set img2 [image create photo -file button-pressed.png]
              set img3 [image create photo -file button-active.png]
              style element create Button.button image \
                  [list $img1  pressed $img2  active $img3] \
                  -border {2 4} -sticky we

SEE ALSO

       ttk::intro(3tk), ttk::style(3tk), ttk_vsapi(3tk), image(3tk), photo(3tk)

KEYWORDS

       style, theme, appearance, pixmap theme, image