Initial creation. This removes alot of the cursor and menuing overhead

from the calling routines


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@464 a1c6a512-1295-4272-9138-f99709370657

uisimulator/menu.c

@@ -0,0 +1,139 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 Robert E. Hak
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include "types.h"
+#include "lcd.h"
+#include "menu.h"
+
+#include "tree.h"
+
+#ifdef HAVE_LCD_BITMAP
+
+#include "screensaver.h"
+extern void tetris(void);
+
+
+#define MENU_ITEM_FONT    0
+#define MENU_ITEM_Y_LOC   6
+#define MENU_LINE_HEIGHT  8
+
+enum Main_Menu_Ids {
+    Tetris, Screen_Saver, Browse, Last_Id
+};
+
+struct Main_Menu_Items items[] = {
+    { Tetris,       "Tetris",       tetris      },
+    { Screen_Saver, "Screen Saver", screensaver },
+    { Browse,       "Browse",       browse_root },
+};
+
+/* Global values for menuing */
+int menu_top;
+int menu_bottom;
+int menu_line_height;
+int cursor;
+
+int get_line_height(void)
+{
+    return menu_line_height;
+}
+
+int is_cursor_menu_top(void)
+{
+    return ((cursor == menu_top) ? 1 : 0);
+}
+
+int is_cursor_menu_bottom(void)
+{
+    return ((cursor == menu_bottom) ? 1 : 0);
+}
+
+void put_cursor_menu_top(void)
+{
+    put_cursor(menu_top);
+}
+
+void put_cursor_menu_bottom(void)
+{
+    put_cursor(menu_bottom);
+}
+
+void move_cursor_up(void)
+{
+    put_cursor(cursor-1);
+}
+
+void move_cursor_down(void)
+{
+    put_cursor(cursor+1);
+}
+
+void redraw_cursor(void)
+{
+    lcd_puts(0, cursor*menu_line_height, "-", 0);
+}
+
+/* 
+ * Move the cursor to a particular id, 
+ *   current: where it is now 
+ *   target: where you want it to be 
+ */
+void put_cursor(int target)
+{
+    lcd_puts(0, cursor*menu_line_height, " ", 0);
+    cursor = target;
+    lcd_puts(0, cursor*menu_line_height, "-", 0);
+}
+
+/* We call the function pointer related to the current cursor position */
+void execute_menu_item(void)
+{
+    /* call the proper function for this line */
+    items[cursor].function();
+}
+
+void add_menu_item(int location, char *string)
+{
+    lcd_puts(MENU_ITEM_Y_LOC, MENU_LINE_HEIGHT*location,
+             string, MENU_ITEM_FONT);
+    if (location < menu_top)
+        menu_top = location;
+    if (location > menu_bottom)
+        menu_bottom = location;
+}
+
+void menu_init(void)
+{
+    int i = 0;
+
+    menu_top = Tetris;
+    menu_bottom = Last_Id-1;
+    menu_line_height = MENU_LINE_HEIGHT;
+    cursor = menu_top;
+
+    for (i = i; i < Last_Id; i++)
+        add_menu_item(items[i].menu_id, (char *) items[i].menu_desc);
+
+    lcd_puts(8, 38, "Rockbox!", 2);
+    redraw_cursor();
+}
+
+#endif /* end HAVE_LCD_BITMAP */
+
+

uisimulator/menu.h

@@ -0,0 +1,50 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 Robert E. Hak
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#ifndef __MENU_H__
+#define __MENU_H__
+
+struct Main_Menu_Items {
+    int menu_id;
+    const char *menu_desc;
+    void (*function) (void);
+};
+
+int get_line_height(void);
+
+/* Cursor calls */
+void put_cursor(int target);
+void put_cursor_menu_top(void);
+void put_cursor_menu_bottom(void);
+void move_cursor_up(void);
+void move_cursor_down(void);
+int is_cursor_menu_top(void);
+int is_cursor_menu_bottom(void);
+
+/* Menu calls */
+void add_menu_item(int location, char *string);
+void menu_init(void);
+void execute_menu_item(void);
+
+#endif /* End __MENU_H__ */
+
+
+
+
+