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HELP VEDWINSUN Ben Rubinstein, Feb 1986 Updated by R.J.Duncan, Oct 1990 Using VED in a SunView "shelltool" window. CONTENTS - (Use <ENTER> g to access required sections) -- Introduction -- VED Window Commands -- Introduction ------------------------------------------------------- When you run VED in a "shelltool" window, it will normally recognise this fact automatically and adjust the size of its display to fit the size of the window. This does not require any special initialisation: shelltool sets the value of the TERM environment variable to "sun" and this in turn (without any instructions to the contrary) causes VED to load LIB * VEDSUN. This library configures VED for use with the Sun terminal emulator and defines a keymap appropriate to the Sun keyboard: see HELP * VEDSUN for more details. The library works out for itself whether it is being run from the console or from a shelltool window and determines the initial window size. If this doesn't seem to be working, check first of all that the TERM environment variable is correctly set and that there is nothing in your "vedinit.p" file which is causing VED to load some other library in preference to VEDSUN. If neither of these apply, it may be that VED is failing to communicate properly with the terminal emulator. You can force VED to configure itself for shelltool by calling the procedure vedwinsun(); Adding this command into your "vedinit.p" file will make VED configure itself for a shelltool window every time it is invoked. Once the configuration has been properly completed, VED will recompute the window size (and adjust the screen display if necessary) each time it is called from the POPLOG top-level, and whenever it is re-entered from the shell after a suspend. VED will not respond automatically to window-size changes which occur whilst editing: you must explicitly request a resize in this case, by using either the command <ENTER> adjust (described below) or the procedure vedsunrefresh(); If you are using the left-hand keypad with VED, this procedure is normally bound to the key sequence ESC L4. -- VED Window Commands ------------------------------------------------ The VEDWINSUN library defines three new VED commands for manipulating the shelltool window in which VED is running: <ENTER> adjust <ENTER> stretch <ENTER> resize These are defined as follows: ved_adjust [procedure] Interrogates the window manager to determine the size of the shelltool window and adjusts the display to fit the new size. Use this command to redraw the screen after changing the window size. ved_stretch [procedure] Allows you to change the size of the window using the mouse. The effect is the same as if you had selected the 'Resize' option from the shelltool frame menu, but VED knows you have changed the window size and will adjust itself to fit automatically. ved_resize [ SIZE_SPEC ] [procedure] Resizes the shelltool window and adjusts the VED display accordingly. The SIZE_SPEC argument is optional: without it, the window will be changed to a default size, usually 34 rows by 80 columns. You can change this default size in either of two ways: (1) if the variable -vedwin_default_size- is a two-element vector, then RESIZE will use this as the default size: the first element will be taken as the number of lines, the second as the number of columns. So the declaration vars vedwin_default_size = {40 80}; will change the default size to be 40 lines by 80 columns. Both elements in the vector must of course be positive integers. (2) if the variable -vedwin_file_sizes- is a list, it is assumed to describe a mapping from file extensions (strings) to size vectors (as described above). The RESIZE command takes as the default any size which matches the extension of the current file. The declaration vars vedwin_file_sizes = ['wide' {10 132}]; causes RESIZE to use a default window size of 10x132 for any file whose name ends in '.wide'. This mechanism takes precedence over the default given by -vedwin_default_size-. If SIZE_SPEC is given, it should be a pair of numbers of the form: LINES, COLUMNS which determine how big the new display should be. For example, <ENTER> resize 40, 132 sets the window size to display 40 lines, each of 132 columns. Either of the two components of SIZE_SPEC may be omitted, in which case the corresponding dimension of the window is left unchanged, but where the number of lines is omitted, the comma must still be given to prevent ambiguity. Thus <ENTER> resize 72 adjusts the window to display 72 lines, while <ENTER> resize ,72 adjusts the window to display 72 columns. The RESIZE command may reduce the actual size of a window if the requested size is too big to be fully displayed on screen. You can find out the maximum window size which the command will allow by doing <ENTER> resize ? Computation of this maximum size works on the assumption that you are using the standard font. If you are using a different sized font, you can force RESIZE to try to determine the size of font and adjust the maximum window size accordingly by doing <ENTER> resize ?? --- C.all/help/vedwinsun --- Copyright University of Sussex 1990. All rights reserved. ----------