392 lines
9.7 KiB
C
392 lines
9.7 KiB
C
/*-
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* Copyright (c) 1995
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* Paul Richards. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* verbatim and that no modifications are made prior to this
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* point in the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Paul Richards.
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* 4. The name Paul Richards may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY PAUL RICHARDS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL PAUL RICHARDS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <strhash.h>
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#include <ctype.h>
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#include <err.h>
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#include <ncurses.h>
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#include <forms.h>
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#include <string.h>
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#include <stdlib.h>
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#include "internal.h"
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extern hash_table *global_bindings;
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extern int lineno;
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int done=0;
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__inline void
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inherit_parent(OBJECT *obj, OBJECT *parent)
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{
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obj->parent = parent;
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obj->status = parent->status;
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if (!obj->y)
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obj->y = parent->y;
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if (!obj->x)
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obj->x = parent->x;
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if (!obj->height)
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obj->height = parent->height;
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if (!obj->width)
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obj->width = parent->width;
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if (!obj->attributes && parent->attributes)
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obj->attributes = strdup(parent->attributes);
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if (!obj->highlight && parent->highlight)
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obj->highlight = strdup(parent->highlight);
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if (!obj->lnext && parent->lnext)
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obj->lnext = strdup(parent->lnext);
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if (!obj->lup && parent->lup)
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obj->lup = strdup(parent->lup);
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if (!obj->ldown && parent->ldown)
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obj->ldown = strdup(parent->ldown);
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if (!obj->lleft && parent->lleft)
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obj->lleft = strdup(parent->lleft);
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if (!obj->lright && parent->lright)
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obj->lright = strdup(parent->lright);
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obj->display = parent->display;
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obj->window = parent->window;
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}
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/*
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* Inherit any unspecified properties from the parent. Not
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* all properties get passed down to children.
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*/
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int
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inherit_props(char *key, void *data, void *arg)
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{
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TUPLE *tuple = (TUPLE *)data;
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OBJECT *parent = (OBJECT *)arg;
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OBJECT *obj = (OBJECT *)tuple->addr;
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inherit_parent(obj, parent);
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if (obj->bind)
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hash_traverse(obj->bind, &inherit_props, obj);
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return (1);
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}
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/*
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* Propagate unspecified properties from the parent
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* to any attached sub-objects.
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*/
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void
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inherit_properties(OBJECT *obj, OBJECT *parent)
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{
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inherit_parent(obj, parent);
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hash_traverse(obj->bind, &inherit_props, obj);
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}
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__inline void
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clone_object(OBJECT *object, OBJECT *def)
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{
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int i;
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/* XXX - Should really check if strdup's succeed */
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object->type = def->type;
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object->status = def->status;
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object->parent = def->parent;
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/*
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* Only copy sizes for fixed size objects,
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* otherwise inherit from parent. Always
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* inherit x and y.
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*/
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if (def->type != OT_COMPOUND && def->type != OT_FUNCTION) {
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object->height = def->height;
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object->width = def->width;
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}
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if (def->attributes)
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object->attributes = strdup(def->attributes);
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if (def->highlight)
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object->highlight = strdup(def->highlight);
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if (def->lnext)
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object->lnext = strdup(def->lnext);
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if (def->lup)
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object->lup = strdup(def->lup);
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if (def->ldown)
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object->ldown = strdup(def->ldown);
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if (def->lleft)
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object->lleft = strdup(def->lleft);
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if (def->lright)
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object->lright = strdup(def->lright);
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if (def->UserDrawFunc)
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object->UserDrawFunc = strdup(def->UserDrawFunc);
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if (def->UserProcFunc)
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object->UserProcFunc = strdup(def->UserProcFunc);
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if (def->OnEntry)
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object->OnEntry = strdup(def->OnEntry);
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if (def->OnExit)
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object->OnExit = strdup(def->OnExit);
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object->display = def->display;
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object->window = def->window;
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switch (object->type) {
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case OT_ACTION:
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if (def->object.action) {
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object->object.action = malloc(sizeof (ACTION_OBJECT));
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if (!object->object.action)
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errx(-1,
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"Failed to allocate memory for copy of action object");
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if (def->object.action->text)
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object->object.action->text =
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strdup(def->object.action->text);
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if (def->object.action->action)
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object->object.action->action =
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strdup(def->object.action->action);
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}
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break;
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case OT_COMPOUND:
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if (def->object.compound) {
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object->object.compound = malloc(sizeof (COMPOUND_OBJECT));
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if (!object->object.compound)
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errx(-1,
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"Failed to allocate memory for copy of compound object");
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if (def->object.compound->defobj)
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object->object.compound->defobj =
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strdup(def->object.compound->defobj);
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}
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break;
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case OT_FUNCTION:
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object->object.function = malloc(sizeof (FUNCTION_OBJECT));
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if (!object->object.function)
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errx(-1, "Failed to allocate memory for copy of function object");
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object->object.function->fn = strdup(def->object.function->fn);
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break;
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case OT_INPUT:
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object->object.input = malloc(sizeof (INPUT_OBJECT));
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if (!object->object.input)
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errx(-1, "Failed to allocate memory for copy of input object");
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object->object.input->lbl_flag = def->object.input->lbl_flag;
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object->object.input->label = strdup(def->object.input->label);
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object->object.input->input = strdup(def->object.input->input);
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object->object.input->limit = def->object.input->limit;
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break;
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case OT_MENU:
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object->object.menu = malloc(sizeof (MENU_OBJECT));
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if (!object->object.menu)
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errx(-1, "Failed to allocate memory for copy of menu object");
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object->object.menu->selected = def->object.menu->selected;
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for (i=0; i < def->object.menu->no_options; i++) {
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object->object.menu->no_options =
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add_menu_option(object->object.menu,
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def->object.menu->options[i]);
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if (!object->object.menu->no_options)
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errx(-1, "Failed to allocate memory for copy of menu option");
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}
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break;
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case OT_TEXT:
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object->object.text = malloc(sizeof (TEXT_OBJECT));
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if (!object->object.text)
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errx(-1, "Failed to allocate memory for copy of text object");
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object->object.text->text = strdup(def->object.text->text);
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break;
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default:
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break;
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}
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}
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/*
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* Recursively clone objects in the bindings table.
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*/
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int
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copy_bound_objects(char *key, void *data, void *arg)
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{
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TUPLE *tuple = (TUPLE *)data;
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OBJECT *object = (OBJECT *)arg;
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OBJECT *clone, *src;
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if (tuple->type != TT_OBJ_DEF && tuple->type != TT_OBJ_INST)
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errx(-1, "Invalid tuple type in definition");
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src = (OBJECT *)tuple->addr;
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clone = malloc(sizeof (OBJECT));
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if (!clone)
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errx(-1, "Failed to allocate memory for clone object");
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clone->bind = hash_create(0);
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if (!clone->bind)
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errx(-1, "Failed to create hash table for definition copy");
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clone_object(clone, src);
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bind_tuple(object->bind, key, tuple->type, (FUNCP)clone);
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if (src->bind)
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hash_traverse(src->bind, ©_bound_objects, clone);
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return (1);
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}
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int
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use_defined_object(OBJECT *object, char *src)
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{
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TUPLE *tuple;
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OBJECT *def;
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tuple = tuple_search(object, src, TT_OBJ_DEF);
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if (!tuple)
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return (ST_NOBIND);
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else
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def = (OBJECT *)tuple->addr;
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/* Clone root object */
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clone_object(object, def);
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/* Now recursively clone sub-objects */
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hash_traverse(def->bind, ©_bound_objects, object);
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}
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/*
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* Calculate length of printable part of the string,
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* stripping out the attribute modifiers.
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*/
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int
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calc_string_width(char *string)
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{
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int len, width=0;
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if (!string)
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return (0);
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len = strlen(string);
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while (len) {
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if (*string != '\\') {
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width++;
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len--;
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string++;
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continue;
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} else {
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string++;
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len--;
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if (*string == '\\') {
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string++;
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width++;
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len--;
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continue;
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} else {
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while (!isspace(*string)) {
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string++;
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len--;
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}
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while (isspace(*string)) {
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string ++;
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len--;
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}
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}
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}
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}
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return (width);
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}
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/* Calculate a default height for a object */
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void
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calc_object_height(OBJECT *object, char *string)
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{
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int len;
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len = calc_string_width(string);
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if (!object->width) {
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/*
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* This is a failsafe, this routine shouldn't be called
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* with a width of 0, the width should be determined
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* first.
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*/
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object->height = 1;
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return;
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}
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if (len < object->width) {
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object->height = 1;
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return;
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} else
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object->height = len / object->width;
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if ((object->height*object->width) < len)
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object->height++;
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return;
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}
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int
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add_menu_option(MENU_OBJECT *menu, char *option)
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{
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char **tmp;
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int len;
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tmp = (char **)realloc(menu->options, (menu->no_options + 1) * sizeof(char**));
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if (!tmp)
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return (0);
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else
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menu->options = tmp;
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len = strlen(option) + 1;
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menu->options[menu->no_options] = (char *)malloc(len);
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if (!menu->options[menu->no_options])
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return (0);
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strncpy(menu->options[menu->no_options], option, len);
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return (++menu->no_options);
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}
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/* Default object functions */
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void
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draw_box(OBJECT *object)
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{
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/* Gross hack for now */
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ncurses_draw_box(object);
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}
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void
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draw_shadow(OBJECT *object)
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{
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/* Gross hack for now */
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ncurses_draw_shadow(object);
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}
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