160 lines
2.9 KiB
C
160 lines
2.9 KiB
C
/*
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* screen.c
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* This file is part of LCDd, the lcdproc server.
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*
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* This file is released under the GNU General Public License. Refer to the
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* COPYING file distributed with this package.
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*
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* Copyright (c) 1999, William Ferrell, Scott Scriven
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*
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*
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* Does screen management
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*
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "shared/report.h"
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#include "drivers.h"
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#include "clients.h"
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#include "widget.h"
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#include "screenlist.h"
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#include "screen.h"
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#include "main.h"
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#include "render.h"
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int default_duration = 0;
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int default_timeout = -1;
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Screen *
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screen_create (char * id, Client * client)
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{
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Screen *s;
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s = malloc (sizeof (Screen));
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if (!s) {
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report(RPT_ERR, "screen_create: Error allocating");
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return NULL;
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}
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if (!id) {
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report (RPT_ERR, "screen_create: Need id string");
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return NULL;
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}
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/* Client can be NULL for serverscreens and other client-less screens */
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s->id = strdup(id);
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if (!s->id) {
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report(RPT_ERR, "screen_create: Error allocating");
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return NULL;
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}
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s->name = NULL;
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s->priority = DEFAULT_SCREEN_PRIORITY;
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s->duration = default_duration;
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s->backlight = BACKLIGHT_OPEN;
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s->heartbeat = HEARTBEAT_OPEN;
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s->width = display_props->width;
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s->height = display_props->height;
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s->keys = NULL;
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s->client = client;
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s->widgetlist = NULL;
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s->timeout = default_timeout; /*ignored unless greater than 0.*/
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s->backlight = BACKLIGHT_OPEN; /*Lets the screen do it's own*/
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/*or do what the client says.*/
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s->widgetlist = LL_new ();
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if (!s->widgetlist) {
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report(RPT_ERR, "screen_create: Error allocating");
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return NULL;
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}
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return s;
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}
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int
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screen_destroy (Screen * s)
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{
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Widget *w;
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if (!s)
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return -1;
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for (w=LL_GetFirst(s->widgetlist); w; w=LL_GetNext(s->widgetlist)) {
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/* Free a widget...*/
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widget_destroy (w);
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}
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LL_Destroy (s->widgetlist);
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if (s->id)
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free (s->id);
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if (s->name)
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free (s->name);
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if (s->keys)
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free (s->keys);
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free (s);
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return 0;
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}
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int
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screen_add_widget (Screen * s, Widget * w)
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{
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report (RPT_INFO, "screen_add_widget(%s,%s)", s->id, w->id);
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if (!s)
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return -1;
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if (!w)
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return 1;
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LL_Push (s->widgetlist, (void *) w);
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return 0;
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}
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int
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screen_remove_widget (Screen * s, Widget * w)
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{
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report (RPT_INFO, "screen_remove_widget(%s,%s)", s->id, w->id);
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if (!s)
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return -1;
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if (!w)
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return 1;
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LL_Remove (s->widgetlist, (void *) w);
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return 0;
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}
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Widget *
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screen_find_widget (Screen * s, char *id)
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{
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Widget * w;
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if (!s)
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return NULL;
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if (!id)
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return NULL;
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debug (RPT_DEBUG, "screen_find_widget(%s,%s)", s->id, id);
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for ( w=LL_GetFirst(s->widgetlist); w; w=LL_GetNext(s->widgetlist) ) {
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if (0 == strcmp (w->id, id)) {
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debug (RPT_DEBUG, "screen_find_widget: Found %s", id);
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return w;
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}
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/* Search subscreens recursively */
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if (w->type == WID_FRAME) {
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w = widget_search_subs (w, id);
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if (w)
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return w;
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}
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}
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debug (RPT_DEBUG, "screen_find_widget: Not found");
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return NULL;
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}
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