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/* Handles a set of windows on screen. */
/*
* Copyright (c) 1995-2002 Joey Hess (joey@kitenet.net)
* All rights reserved. See COPYING for full copyright information (GPL).
*/
#include "global.h"
#include "screen.h"
#include "menu.h"
#include "slang.h"
#include "window.h"
#include "actions.h"
#include "rc.h"
#include "error.h"
#include <stdlib.h>
#include <string.h>
#include <libintl.h>
#define _(String) gettext (String)
/*
* This is a pointer to the first window that pdmenu pops up.
* This is only used by DrawAll, where we need to draw the screen starting
* with the first menu, and then onwards. Technically, we don't need this,
* but I'd prefer not to have to walk back through the whole linked list of
* windows to find the first one each time DrawAll is called.
*/
Window_List_Type *FirstWindow;
/* Draw the whole screen, with menus on it. */
void DrawAll () {
static char *greeting = NULL;
Window_List_Type *this_window=FirstWindow;
if (!greeting) {
greeting = malloc(256);
sprintf(greeting, _("Welcome to Pdmenu %s by Joey Hess <joey@kitenet.net>"), VER);
}
DrawTitle(ScreenTitle);
DrawDesktop();
if (strlen(CurrentWindow->menu->helptext)>0)
DrawBase(CurrentWindow->menu->helptext);
else
DrawBase(greeting);
/* Follow the linked list, but do not process the last element. */
while (this_window->next) {
DrawMenu(this_window->menu,0);
this_window=this_window->next;
}
/* Now draw the last element differently. */
DrawMenu(this_window->menu,1);
SLsmg_refresh();
}
/* Force a redraw of the screen. Clear screen, then redraw everything. */
void Force_Redraw () {
Screen_Reset();
Screen_Init();
DrawAll();
}
/*
* Pass it a menu, and it will return 1 if it is visible on the screen,
* 0 if not
*/
int IsVisible (Menu_Type *m) {
Window_List_Type *this_window=CurrentWindow;
while (this_window) {
if (this_window->menu == m)
return 1;
this_window=this_window->last;
}
return 0;
}
/*
* Call this whenever the screen size changes. It repositions all the windows
* on the screen to fit the new screen.
* You will typically want to call Force_Redraw() after this function.
*/
void Resize_Screen () {
Window_List_Type *this_window=CurrentWindow;
Want_Screen_Resize = 0;
SetScreensize();
while (this_window) {
this_window->menu->recalc=1;
CalcMenu(this_window->menu);
this_window=this_window->last;
}
}
/* Add a window to the group onscreen. */
void AddWindow (Menu_Type *m) {
if (CurrentWindow) {
CurrentWindow->next=malloc(sizeof(Window_List_Type));
CurrentWindow->next->last=CurrentWindow;
CurrentWindow=CurrentWindow->next;
}
else {
/* This is the first window we've added. */
CurrentWindow=malloc(sizeof(Window_List_Type));
FirstWindow=CurrentWindow;
CurrentWindow->last=NULL;
}
CurrentWindow->next=NULL;
CurrentWindow->menu=m;
}
/* Exit and remove the current window. */
void ExitWindow () {
Window_List_Type *w=CurrentWindow;
/* Don't remove the very last window. */
if (CurrentWindow->last) {
CurrentWindow=CurrentWindow->last;
free(w);
CurrentWindow->next=NULL;
DrawAll();
}
}
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