BASE64-kodiertes Pony anzeigen

Posted on by Enno Wulff

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In diesem Beispielprogramm zeige ich dir, wie du ein niedliches Pony anzeigen kannst. Grüße gehen raus an Marco Matjes. Das Coding ist nicht schön, aber es zeigt, wie man ein BASE64-Codiertes Bild (in diesem Fall ein GIF) in einem Container anzeigen kann. Kleine Bilder oder Icons können so relativ einfach im Quelltext eingebunden werden.

So sieht das Pony aus

Code

REPORT.

DATA picture       TYPE REF TO cl_gui_picture.
DATA pic_container TYPE REF TO cl_gui_docking_container.
DATA graphic_url(255).

TYPES: BEGIN OF graphic_str,
         line(255) TYPE x,
       END OF graphic_str,
       graphic_tab TYPE STANDARD TABLE OF graphic_str.
DATA graphic_table TYPE graphic_tab.
DATA graphic_size TYPE i.

PARAMETERS p_dummy.

INITIALIZATION.
  PERFORM show.

START-OF-SELECTION.

  DEFINE a.
    concatenate l_graphic_str &1 into l_graphic_str.
  END-OF-DEFINITION.

FORM show.

  DATA: l_graphic_xstr TYPE xstring,
        l_graphic_x    TYPE x,
        l_graphic_conv TYPE i,
        l_graphic_str  TYPE string,
        l_graphic_offs TYPE i.


  pic_container = NEW #( extension = 300 no_autodef_progid_dynnr = 'X' ).
  picture = NEW #( parent = pic_container ).

  CLEAR graphic_table.

  "GIF rennpony 16 colors
  a 'R0lGODlhFQATADMAACH5BAAAAAAALAAAAAAVABMAg////19qcHaPjo6ij5XL/p3Mx6rR3qTS+LPUksPessjcysvl+ufbrvrclPfv1Or'.
  a '0+wSMEMg5F1mY6g0eztzmNA3TKEu4LYaptI2jShbBMIahlDNwXCwDYcdQeQ6HwEDxOyiKmyNhKhj8pobYBjkl6K5TokZRKBe+3enhRn'.
  a 'Eg3u/EbwH2aiWJfB6hfjzAa3d6ewYHDzRpWQ0SCoMJBoc0gCYOMo15hho1aiaLAAqgkRR/aYE9iKVQPZtppwCsXREAOw=='.

  CALL FUNCTION 'SSFC_BASE64_DECODE'
    EXPORTING
      b64data = l_graphic_str
    IMPORTING
      bindata = l_graphic_xstr
    EXCEPTIONS
      OTHERS  = 8.


  graphic_size = xstrlen( l_graphic_xstr ).
  CHECK graphic_size > 0.

  l_graphic_conv = graphic_size.
  l_graphic_offs = 0.

  WHILE l_graphic_conv > 255.
    APPEND VALUE #( line = l_graphic_xstr+l_graphic_offs(255) ) TO graphic_table.
    l_graphic_offs = l_graphic_offs + 255.
    l_graphic_conv = l_graphic_conv - 255.
  ENDWHILE.

  APPEND VALUE #( line = l_graphic_xstr+l_graphic_offs(l_graphic_conv) ) TO graphic_table.


  CALL FUNCTION 'DP_CREATE_URL'
    EXPORTING
      type      = 'image'                                    "#EC NOTEXT
      subtype   = 'gif'
      cacheable = space
      size      = graphic_size
      lifetime  = cndp_lifetime_transaction
    TABLES
      data      = graphic_table
    CHANGING
      url       = graphic_url.

  picture->clear_picture( ).
  picture->load_picture_from_url( url = graphic_url ).
  picture->set_display_mode( cl_gui_picture=>display_mode_fit ).

ENDFORM.
Enno Wulff
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