小型窗口字处理软件

+ TEXT FILE FORMAT A panel text file begins with an optional size statement followed by an optional background statement. One or more tag statements are used to relate field attributes and field names to special characters or symbols. After the tag statements is the actual screen layout, which must begin with a tagged symbol. + size <ul_row> <ul_col> <lr_row> <lr_col> + background <color> + tag <symbol> <attributes> <variable>...<variable> + . + . + . + <symbol> ........................................ + ................................................. + ................................................. + . + . + . + SIZE STATEMENT This is an optional panel statement, and if present must precede the background statement or the first tag statement. This statement simply sets the size of the window in which the panel will be constructed. Format: + size <ul_row> <ul_col> <lr_row> <lr_col> where: <ul_row> is the upper left row of the window <ul_col> is the upper left column of the window <lr_row> is the lower right row of the window <lr_col> is the lower right column of the window Example: size 0 0 13 39 Defines a panel to be 14 rows by 40 columns located in the upper left part of the screen. If a size statement is not present within a panel definition, the default window coordinates are 0,0 and 24,79. If a panel is defined to be smaller than the previous active panel, the previous panel will be partially visible behind the new panel. However, the overlaid panel will not be active again until the new panel is destroyed (i.e. no I/O functions may be performed on the previous panel). + BACKGROUND STATEMENT This is an optional panel statement, and if present must precede the first tag statment. This statement simply sets the screen background color when a CGA adapter is in use. If a monochrome adapter is in use the background statement is ignored. Format: + background <color> where <color> is a digit 0 - 7 Color codes: 0 = Black (Default) 1 = Blue 2 = Green 3 = Cyan 4 = Red 5 = Magenta 6 = Brown 7 = White + TAG STATEMENT A tag statement allows you to relate a special character or symbol with a field definition. This definition includes the field attributes as well as the field names. Format: + tag <symbol> <attributes> <variable list> <Attributes>: P = Protected, U = Unprotected H = High Intensity, L = Low Intensity B = Blink R = Reverse _ = Underline D = Dark 0 \ 1 \ . Foreground Color Code . / (as defined for background) 7 / Some attributes may have no effect with certain monitor types (i.e. the color codes will have no effect using a monochrome display adapter). <variable list>: one or more field names separated by at least one blank. Valid names are no more than eight characters begining with a letter. No special characters are allowed. Each variable or field name is matched to a field on the screen layout. If more fields are defined with the tag symbol than variables in the list, the last variable name in the list is used to name the remaining fields. In this case, a subscript other than 1 is used to access like named fields. + EXAMPLES + tag % p + tag & uh field + % Example 1 + + Name:& % + + Addr:& % In this example, there are two unprotected fields. The first field would be accessed using the name FIELD subscripted by 1, and the second would be called FIELD with a subscript of 2. + Press <F1> to activate this panel. Try moving the cursor from field to field with the tab key, and experiment with entering some actual data. + background 1 + tag ! p4 + tag @ pr7 + tag * u_2 select + ! Example 2 + + @1. Spreadsheet! + @2. Word Processor! + @3. Database! + + Select-->* ! The screen background color is defined to be blue. The ! symbol defines protected red fields. The @ symbol defines protected, reverse fields with white characters. The asterisk tagged field is named SELECT and will be unprotected, underlined and green. + Press <F2> to activate this panel. + size 10 30 16 56 + background 7 + tag ! p4 + !ÉÍÍÍÍÍÍ Example 3 ÍÍÍÍÍÍ» + º Here is a small panel º + º sized down to appear º + º as a window on top of º + º the previously active º + º panel. º + ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ The screen background color is defined to be white. The ! symbol defines protected red fields. This example demonstrates the use of the size statement. The panel is defined as a 7 x 27 character box to be displayed in the lower right part of the screen. + Press <F3> to activate this panel. + PANEL DESIGN Try your hand at designing your own panel! Use any word processor to create the panel file. Be sure your file has an extension of PAN. Optionally, you may use IPD to create and modify a panel, type: + ipd [<fn>] After your panel text file has been created, type: + showpan <fn> where <fn> is your panel file name without the .PAN extension. *** END OF TOPIC ***