A conditional is an expression that can do different things depending on the value of some test. Here is a template that will insert a linebreak between two images if the width of the first is greater than 200 pixels:

Max200 ()
TITLE "No wider than 200"
BODY
   WITH= variable im
      value RENDER text "Hello"
        font-size 25
   IMAGE source im
   IF test > value1 WIDTH im
        value2 200
      then LINEBREAK
      else SHIM width 10
   IMAGE source RENDER text "World!"
        font-size 25

The IF operator takes three arguments. If the test argument is true, the then argument is evaluated; otherwise the else argument is evaluated.

In this case, if the width of im is greater than 200 then a linebreak will be generated; otherwise a 10-pixel wide shim will be generated.

The SHIM operator generates a transparent image of a specified height and/or width. Such images are useful in controlling the spacing of elements on the page.

See Also

• Using the RTML template editor
• RTML—Operator Reference
• RTML—Basic concepts
• RTML—Sample template
• RTML—Multiple expressions
• RTML—Optional arguments
• RTML—Nested expressions
• RTML—Colors
• RTML—Images
• RTML—Object properties
• RTML—Global variables
• RTML—Local variables
• RTML—Iteration