Page type Display

The following describes the components of the page type display and how they affect the way the layout works. A page type contains a number of blocks, each of which defines a rectangular region on the page. There are a number of different types of blocks as described below.

The print area block defines the region of the page in which material can be placed. All other blocks on the page must lie within the print area. You can think of it as defining margins on the edges of the page that are always empty. The area of the page outside the print area is displayed in a light gray. When the print area is selected it is displayed with a dotted border, as shown:

See “Expanding the Print Area” for information on how to expand the print area to allow for blocks that do not fit within the current area.

The data area block defines the region in which the main text of the publication is placed. Within the data area lie one or more data blocks that contain the text. There may also be other blocks for material related to the text, such as side notes and margin rules. The region inside a data block is shown in yellow. A number is displayed at the center of a data block to indicate its sequence; TopLeaf uses the sequence to decide in which order to fill the data blocks. The following figure shows the simplest case, where the data area contains a single data block:

Material which is constant or is derived from the main text is shown in fixed blocks. The term “fixed” relates to their fixed position on the page, and does not imply that they always show the same information. For example, page numbers are typically displayed in fixed blocks. Fixed blocks are shown in light blue:

Fixed rules are a special type of fixed block. Unlike other fixed blocks, you don't have to specify what they display; they always draw a black horizontal line of a specified thickness:

(to create vertical rules, or rules of another color, create a fixed block of the appropriate shape and draw it using a <rule/> command in the Header/Footer custom content. The font color can be used to control the color.)

It is possible for blocks to overlap. When this happens, the region of overlap is shown in a darker blue. The following shows two overlapping fixed blocks:

Clicking the mouse in an overlap region opens a menu to allow you to select one of the blocks, as described in “Selecting A Block”. Care must be taken when blocks overlap, since this can lead to overprinting. It can be a useful technique, however. In the example above we could have a left-aligned title in the left block and a right-aligned title in the right block. This allows one of the titles to be longer than half the page width if necessary.

The horizontal and vertical lines in the corners of the page indicate the extent of the crop area. By default, the crop area is the same as the print area. See “The Crop Area” for more information.