1 files changed, 133 insertions, 0 deletions
diff --git a/textscreen/txt_desktop.c b/textscreen/txt_desktop.c
new file mode 100644
index 00000000..a2ec5c56
--- /dev/null
+++ b/textscreen/txt_desktop.c
@@ -0,0 +1,133 @@
+// Emacs style mode select   -*- C++ -*- 
+//-----------------------------------------------------------------------------
+//
+// $Id$
+//
+// Copyright(C) 1993-1996 Id Software, Inc.
+// Copyright(C) 2006 Simon Howard
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+// 02111-1307, USA.
+//
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "txt_desktop.h"
+#include "txt_gui.h"
+#include "txt_main.h"
+#include "txt_separator.h"
+#include "txt_window.h"
+
+#define MAXWINDOWS 128
+
+static char *desktop_title;
+static txt_window_t *all_windows[MAXWINDOWS];
+static int num_windows = 0;
+
+void TXT_AddDesktopWindow(txt_window_t *win)
+{
+    all_windows[num_windows] = win;
+    ++num_windows;
+}
+
+void TXT_RemoveDesktopWindow(txt_window_t *win)
+{
+    int from, to;
+
+    for (from=0, to=0; from<num_windows; ++from)
+    {
+        if (all_windows[from] != win)
+        {
+            all_windows[to] = all_windows[from];
+            ++to;
+        }
+    }
+    
+    num_windows = to;
+}
+
+static void DrawDesktopBackground(char *title)
+{
+    int i;
+    unsigned char *screendata;
+    unsigned char *p;
+
+    screendata = TXT_GetScreenData();
+    
+    // Fill the screen with gradient characters
+
+    p = screendata;
+    
+    for (i=0; i<TXT_SCREEN_W * TXT_SCREEN_H; ++i)
+    {
+        *p++ = 0xb1;
+        *p++ = TXT_COLOR_GREY | (TXT_COLOR_BLUE << 4);
+    }
+
+    // Draw the top and bottom banners
+
+    p = screendata;
+
+    for (i=0; i<TXT_SCREEN_W; ++i)
+    {
+        *p++ = ' ';
+        *p++ = TXT_COLOR_BLACK | (TXT_COLOR_GREY << 4);
+    }
+
+    p = screendata + (TXT_SCREEN_H - 1) * TXT_SCREEN_W * 2;
+
+    for (i=0; i<TXT_SCREEN_W; ++i)
+    {
+        *p++ = ' ';
+        *p++ = TXT_COLOR_BLACK | (TXT_COLOR_GREY << 4);
+    }
+
+    // Print the title
+
+    TXT_GotoXY(0, 0);
+    TXT_FGColor(TXT_COLOR_BLACK);
+    TXT_BGColor(TXT_COLOR_GREY, 0);
+
+    TXT_PutChar(' ');
+    TXT_Puts(title);
+}
+
+void TXT_SetDesktopTitle(char *title)
+{
+    free(desktop_title);
+    desktop_title = strdup(title);
+}
+
+void TXT_DrawDesktop(void)
+{
+    int i;
+    char *title;
+
+    if (desktop_title == NULL)
+        title = "";
+    else
+        title = desktop_title;
+
+    DrawDesktopBackground(title);
+
+    for (i=0; i<num_windows; ++i)
+    {
+        TXT_DrawWindow(all_windows[i]);
+    }
+
+    TXT_UpdateScreen();
+}
+