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Diffstat (limited to 'man/form_driver.3x')
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diff --git a/man/form_driver.3x b/man/form_driver.3x new file mode 100644 index 000000000000..85b1df8277d6 --- /dev/null +++ b/man/form_driver.3x @@ -0,0 +1,324 @@ +.\"*************************************************************************** +.\" Copyright (c) 1998-2006,2007 Free Software Foundation, Inc. * +.\" * +.\" Permission is hereby granted, free of charge, to any person obtaining a * +.\" copy of this software and associated documentation files (the * +.\" "Software"), to deal in the Software without restriction, including * +.\" without limitation the rights to use, copy, modify, merge, publish, * +.\" distribute, distribute with modifications, sublicense, and/or sell * +.\" copies of the Software, and to permit persons to whom the Software is * +.\" furnished to do so, subject to the following conditions: * +.\" * +.\" The above copyright notice and this permission notice shall be included * +.\" in all copies or substantial portions of the Software. * +.\" * +.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * +.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * +.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * +.\" IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * +.\" DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * +.\" OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * +.\" THE USE OR OTHER DEALINGS IN THE SOFTWARE. * +.\" * +.\" Except as contained in this notice, the name(s) of the above copyright * +.\" holders shall not be used in advertising or otherwise to promote the * +.\" sale, use or other dealings in this Software without prior written * +.\" authorization. * +.\"*************************************************************************** +.\" +.\" $Id: form_driver.3x,v 1.15 2007/06/02 22:56:49 tom Exp $ +.TH form_driver 3X "" +.SH NAME +\fBform_driver\fR - command-processing loop of the form system +.SH SYNOPSIS +\fB#include <form.h>\fR +.br +int form_driver(FORM *form, int c); +.br +.SH DESCRIPTION +Once a form has been posted (displayed), you should funnel input events to it +through \fBform_driver\fR. This routine has two major input cases; either +the input is a form navigation request or it is a printable ASCII character. +The form driver requests are as follows: +.TP 5 +REQ_NEXT_PAGE +Move to the next page. +.TP 5 +REQ_PREV_PAGE +Move to the previous page. +.TP 5 +REQ_FIRST_PAGE +Move to the first page. +.TP 5 +REQ_LAST_PAGE +Move to the last field. +.sp +.TP 5 +REQ_NEXT_FIELD +Move to the next field. +.TP 5 +REQ_PREV_FIELD +Move to the previous field. +.TP 5 +REQ_FIRST_FIELD +Move to the first field. +.TP 5 +REQ_LAST_FIELD +Move to the last field. +.TP 5 +REQ_SNEXT_FIELD +Move to the sorted next field. +.TP 5 +REQ_SPREV_FIELD +Move to the sorted previous field. +.TP 5 +REQ_SFIRST_FIELD +Move to the sorted first field. +.TP 5 +REQ_SLAST_FIELD +Move to the sorted last field. +.TP 5 +REQ_LEFT_FIELD +Move left to a field. +.TP 5 +REQ_RIGHT_FIELD +Move right to a field. +.TP 5 +REQ_UP_FIELD +Move up to a field. +.TP 5 +REQ_DOWN_FIELD +Move down to a field. +.sp +.TP 5 +REQ_NEXT_CHAR +Move to the next char. +.TP 5 +REQ_PREV_CHAR +Move to the previous char. +.TP 5 +REQ_NEXT_LINE +Move to the next line. +.TP 5 +REQ_PREV_LINE +Move to the previous line. +.TP 5 +REQ_NEXT_WORD +Move to the next word. +.TP 5 +REQ_PREV_WORD +Move to the previous word. +.TP 5 +REQ_BEG_FIELD +Move to the beginning of the field. +.TP 5 +REQ_END_FIELD +Move to the end of the field. +.TP 5 +REQ_BEG_LINE +Move to the beginning of the line. +.TP 5 +REQ_END_LINE +Move to the end of the line. +.TP 5 +REQ_LEFT_CHAR +Move left in the field. +.TP 5 +REQ_RIGHT_CHAR +Move right in the field. +.TP 5 +REQ_UP_CHAR +Move up in the field. +.TP 5 +REQ_DOWN_CHAR +Move down in the field. +.sp +.TP 5 +REQ_NEW_LINE +Insert or overlay a new line. +.TP 5 +REQ_INS_CHAR +Insert a blank at the cursor. +.TP 5 +REQ_INS_LINE +Insert a blank line at the cursor. +.TP 5 +REQ_DEL_CHAR +Delete character at the cursor. +.TP 5 +REQ_DEL_PREV +Delete character before the cursor. +.TP 5 +REQ_DEL_LINE +Delete line at the cursor. +.TP 5 +REQ_DEL_WORD +Delete blank-delimited word at the cursor. +.TP 5 +REQ_CLR_EOL +Clear to end of line from cursor. +.TP 5 +REQ_CLR_EOF +Clear to end of field from cursor. +.TP 5 +REQ_CLR_FIELD +Clear the entire field. +.TP 5 +REQ_OVL_MODE +Enter overlay mode. +.TP 5 +REQ_INS_MODE +Enter insert mode. +.sp +.TP 5 +REQ_SCR_FLINE +Scroll the field forward a line. +.TP 5 +REQ_SCR_BLINE +Scroll the field backward a line. +.TP 5 +REQ_SCR_FPAGE +Scroll the field forward a page. +.TP 5 +REQ_SCR_BPAGE +Scroll the field backward a page. +.TP 5 +REQ_SCR_FHPAGE +Scroll the field forward half a page. +.TP 5 +REQ_SCR_BHPAGE +Scroll the field backward half a page. +.sp +.TP 5 +REQ_SCR_FCHAR +Scroll the field forward a character. +.TP 5 +REQ_SCR_BCHAR +Scroll the field backward a character. +.TP 5 +REQ_SCR_HFLINE +Horizontal scroll the field forward a line. +.TP 5 +REQ_SCR_HBLINE +Horizontal scroll the field backward a line. +.TP 5 +REQ_SCR_HFHALF +Horizontal scroll the field forward half a line. +.TP 5 +REQ_SCR_HBHALF +Horizontal scroll the field backward half a line. +.sp +.TP +REQ_VALIDATION +Validate field. +.TP +REQ_NEXT_CHOICE +Display next field choice. +.TP +REQ_PREV_CHOICE +Display previous field choice. +.PP +If the second argument is a printable ASCII character, the driver places it +in the current position in the current field. If it is one of the forms +requests listed above, that request is executed. +.SS MOUSE HANDLING +.PP +If the second argument is the KEY_MOUSE special key, the associated +mouse event is translated into one of the above pre-defined requests. +Currently only clicks in the user window (e.g. inside the form display +area or the decoration window) are handled. +.PP +If you click above the display region of the form: +.RS +.TP +a REQ_PREV_FIELD is generated for a single click, +.TP +a REQ_PREV_PAGE is generated for a double-click and +.TP +a REQ_FIRST_FIELD is generated for a triple-click. +.RE +.PP +If you click below the display region of the form: +.RS +.TP +a REQ_NEXT_FIELD is generated for a single click, +.TP +a REQ_NEXT_PAGE is generated for a double-click and +.TP +a REQ_LAST_FIELD is generated for a triple-click. +.RE +.PP +If you click at an field inside the display area of the form: +.RS +.TP 3 +- +the form cursor is positioned to that field. +.TP 3 +- +If you double-click a field, +the form cursor is positioned to that field +and \fBE_UNKNOWN_COMMAND\fR is returned. +This return value makes sense, +because a double click usually means that an field-specific action should +be returned. +It is exactly the purpose of this return value to signal that an +application specific command should be executed. +.TP 3 +- +If a translation +into a request was done, \fBform_driver\fR returns the result of this request. +.RE +.PP +If you clicked outside the user window or the mouse event couldn't be translated +into a form request an \fBE_REQUEST_DENIED\fR is returned. +.SS APPLICATION-DEFINED COMMANDS +.PP +If the second argument is neither printable ASCII nor one of the above +pre-defined form requests, the driver assumes it is an application-specific +command and returns \fBE_UNKNOWN_COMMAND\fR. Application-defined commands +should be defined relative to \fBMAX_COMMAND\fR, the maximum value of these +pre-defined requests. +.SH RETURN VALUE +\fBform_driver\fR returns one of the following error codes: +.TP 5 +.B E_OK +The routine succeeded. +.TP 5 +.B E_BAD_ARGUMENT +Routine detected an incorrect or out-of-range argument. +.TP 5 +.B E_BAD_STATE +Routine was called from an initialization or termination function. +.TP 5 +.B E_NOT_POSTED +The form has not been posted. +.TP 5 +.B E_INVALID_FIELD +Contents of field is invalid. +.TP 5 +.B E_REQUEST_DENIED +The form driver could not process the request. +.TP 5 +.B E_SYSTEM_ERROR +System error occurred (see \fBerrno\fR). +.TP 5 +.B E_UNKNOWN_COMMAND +The form driver code saw an unknown request code. +. +.SH SEE ALSO +\fBcurses\fR(3X), \fBform\fR(3X). +.SH NOTES +The header file \fB<form.h>\fR automatically includes the header files +\fB<curses.h>\fR. +.SH PORTABILITY +These routines emulate the System V forms library. They were not supported on +Version 7 or BSD versions. +.SH AUTHORS +Juergen Pfeifer. Manual pages and adaptation for new curses by Eric +S. Raymond. +.\"# +.\"# The following sets edit modes for GNU EMACS +.\"# Local Variables: +.\"# mode:nroff +.\"# fill-column:79 +.\"# End: |