VOID
UiDrawMenu(IN PUI_MENU_INFO MenuInfo)
{
ULONG i;
/* No GUI status bar text, just minimal text. first to tell the user to choose */
UiDrawText(0,
MenuInfo->Top - 2,
"Please select the operating system to start:",
ATTR(UiMenuFgColor, UiMenuBgColor));
/* Now tell him how to choose */
UiDrawText(0,
MenuInfo->Bottom + 1,
"Use the up and down arrow keys to move the highlight to "
"your choice.",
ATTR(UiMenuFgColor, UiMenuBgColor));
UiDrawText(0,
MenuInfo->Bottom + 2,
"Press ENTER to choose.",
ATTR(UiMenuFgColor, UiMenuBgColor));
/* And offer F8 options */
UiDrawText(0,
UiScreenHeight - 4,
"For troubleshooting and advanced startup options for "
"Odyssey, press F8.",
ATTR(UiMenuFgColor, UiMenuBgColor));
/* Draw the menu box */
UiDrawMenuBox(MenuInfo);
/* Draw each line of the menu */
for (i = 0; i < MenuInfo->MenuItemCount; i++) UiDrawMenuItem(MenuInfo, i);
}
VOID
UiDrawMenu(IN PUI_MENU_INFO MenuInfo)
{
ULONG i;
/* No GUI status bar text, just minimal text. Show the menu header. */
UiDrawText(0,
MenuInfo->Top - 2,
MenuInfo->MenuHeader,
ATTR(UiMenuFgColor, UiMenuBgColor));
/* Now tell the user how to choose */
UiDrawText(0,
MenuInfo->Bottom + 1,
"Use \x18 and \x19 to move the highlight to your choice.",
ATTR(UiMenuFgColor, UiMenuBgColor));
UiDrawText(0,
MenuInfo->Bottom + 2,
"Press ENTER to choose.",
ATTR(UiMenuFgColor, UiMenuBgColor));
/* And show the menu footer */
UiDrawText(0,
UiScreenHeight - 4,
MenuInfo->MenuFooter,
ATTR(UiMenuFgColor, UiMenuBgColor));
/* Draw the menu box */
UiDrawMenuBox(MenuInfo);
/* Draw each line of the menu */
for (i = 0; i < MenuInfo->MenuItemCount; i++)
{
UiDrawMenuItem(MenuInfo, i);
}
/* Display the boot options if needed */
if (MenuInfo->ShowBootOptions)
{
DisplayBootTimeOptions();
}
}
BOOLEAN
UiDisplayMenu(IN PCSTR MenuHeader,
IN PCSTR MenuFooter,
IN BOOLEAN ShowBootOptions,
IN PCSTR MenuItemList[],
IN ULONG MenuItemCount,
IN ULONG DefaultMenuItem,
IN LONG MenuTimeOut,
OUT PULONG SelectedMenuItem,
IN BOOLEAN CanEscape,
IN UiMenuKeyPressFilterCallback KeyPressFilter)
{
UI_MENU_INFO MenuInformation;
ULONG LastClockSecond;
ULONG CurrentClockSecond;
ULONG KeyPress;
/* Check if there's no timeout */
if (!MenuTimeOut)
{
/* Return the default selected item */
if (SelectedMenuItem) *SelectedMenuItem = DefaultMenuItem;
return TRUE;
}
/* Setup the MENU_INFO structure */
MenuInformation.MenuHeader = MenuHeader;
MenuInformation.MenuFooter = MenuFooter;
MenuInformation.ShowBootOptions = ShowBootOptions;
MenuInformation.MenuItemList = MenuItemList;
MenuInformation.MenuItemCount = MenuItemCount;
MenuInformation.MenuTimeRemaining = MenuTimeOut;
MenuInformation.SelectedMenuItem = DefaultMenuItem;
/* Calculate the size of the menu box */
UiCalcMenuBoxSize(&MenuInformation);
/* Draw the menu */
UiDrawMenu(&MenuInformation);
/* Get the current second of time */
LastClockSecond = ArcGetTime()->Second;
/* Process keys */
while (TRUE)
{
/* Process key presses */
KeyPress = UiProcessMenuKeyboardEvent(&MenuInformation,
KeyPressFilter);
/* Check for ENTER or ESC */
if (KeyPress == KEY_ENTER) break;
if (CanEscape && KeyPress == KEY_ESC) return FALSE;
/* Check if there is a countdown */
if (MenuInformation.MenuTimeRemaining > 0)
{
/* Get the updated time, seconds only */
CurrentClockSecond = ArcGetTime()->Second;
/* Check if more then a second has now elapsed */
if (CurrentClockSecond != LastClockSecond)
{
/* Update the time information */
LastClockSecond = CurrentClockSecond;
MenuInformation.MenuTimeRemaining--;
/* Update the menu */
UiDrawMenuBox(&MenuInformation);
}
}
else if (MenuInformation.MenuTimeRemaining == 0)
{
/* A time out occurred, exit this loop and return default OS */
break;
}
}
/* Return the selected item */
if (SelectedMenuItem) *SelectedMenuItem = MenuInformation.SelectedMenuItem;
return TRUE;
}
ULONG
NTAPI
UiProcessMenuKeyboardEvent(IN PUI_MENU_INFO MenuInfo,
IN UiMenuKeyPressFilterCallback KeyPressFilter)
{
ULONG KeyEvent = 0;
ULONG Selected, Count;
/* Check for a keypress */
if (MachConsKbHit())
{
/* Check if the timeout is not already complete */
if (MenuInfo->MenuTimeRemaining != -1)
{
/* Cancel it and remove it */
MenuInfo->MenuTimeRemaining = -1;
UiDrawMenuBox(MenuInfo);
}
/* Get the key */
KeyEvent = MachConsGetCh();
/* Is it extended? Then get the extended key */
if (!KeyEvent) KeyEvent = MachConsGetCh();
/*
* Call the supplied key filter callback function to see
* if it is going to handle this keypress.
*/
if ((KeyPressFilter) && (KeyPressFilter(KeyEvent)))
{
/* It processed the key character, so redraw and exit */
UiDrawMenu(MenuInfo);
return 0;
}
/* Process the key */
if ((KeyEvent == KEY_UP ) || (KeyEvent == KEY_DOWN) ||
(KeyEvent == KEY_HOME) || (KeyEvent == KEY_END ))
{
/* Get the current selected item and count */
Selected = MenuInfo->SelectedMenuItem;
Count = MenuInfo->MenuItemCount - 1;
/* Check the key and change the selected menu item */
if ((KeyEvent == KEY_UP) && (Selected > 0))
{
/* Deselect previous item and go up */
MenuInfo->SelectedMenuItem--;
UiDrawMenuItem(MenuInfo, Selected);
Selected--;
// Skip past any separators
if ((Selected > 0) &&
(MenuInfo->MenuItemList[Selected] == NULL))
{
MenuInfo->SelectedMenuItem--;
}
}
else if ( ((KeyEvent == KEY_UP) && (Selected == 0)) ||
(KeyEvent == KEY_END) )
{
/* Go to the end */
MenuInfo->SelectedMenuItem = Count;
UiDrawMenuItem(MenuInfo, Selected);
}
else if ((KeyEvent == KEY_DOWN) && (Selected < Count))
{
/* Deselect previous item and go down */
MenuInfo->SelectedMenuItem++;
UiDrawMenuItem(MenuInfo, Selected);
Selected++;
// Skip past any separators
if ((Selected < Count) &&
(MenuInfo->MenuItemList[Selected] == NULL))
{
MenuInfo->SelectedMenuItem++;
}
}
else if ( ((KeyEvent == KEY_DOWN) && (Selected == Count)) ||
(KeyEvent == KEY_HOME) )
{
/* Go to the beginning */
MenuInfo->SelectedMenuItem = 0;
UiDrawMenuItem(MenuInfo, Selected);
}
/* Select new item and update video buffer */
UiDrawMenuItem(MenuInfo, MenuInfo->SelectedMenuItem);
}
}
/* Return the pressed key */
return KeyEvent;
}
ULONG
NTAPI
UiProcessMenuKeyboardEvent(IN PUI_MENU_INFO MenuInfo,
IN UiMenuKeyPressFilterCallback KeyPressFilter)
{
ULONG KeyEvent = 0, Selected, Count;
/* Check for a keypress */
if (MachConsKbHit())
{
/* Check if the timeout is not already complete */
if (MenuInfo->MenuTimeRemaining != -1)
{
//
// Cancel it and remove it
//
MenuInfo->MenuTimeRemaining = -1;
UiDrawMenuBox(MenuInfo);
}
/* Get the key */
KeyEvent = MachConsGetCh();
/* Is it extended? Then get the extended key */
if (!KeyEvent) KeyEvent = MachConsGetCh();
/* Call the supplied key filter callback function to see if it is going to handle this keypress. */
if ((KeyPressFilter) && (KeyPressFilter(KeyEvent)))
{
/* It processed the key character, so redraw and exit */
UiDrawMenu(MenuInfo);
return 0;
}
/* Process the key */
if ((KeyEvent == KEY_UP) || (KeyEvent == KEY_DOWN))
{
/* Get the current selected item and count */
Selected = MenuInfo->SelectedMenuItem;
Count = MenuInfo->MenuItemCount - 1;
/* Check if this was a key up and there's a selected menu item */
if ((KeyEvent == KEY_UP) && (Selected))
{
/* Update the menu (Deselect previous item) */
MenuInfo->SelectedMenuItem--;
UiDrawMenuItem(MenuInfo, Selected);
Selected--;
/* Skip past any separators */
if ((Selected) &&
!(_stricmp(MenuInfo->MenuItemList[Selected], "SEPARATOR")))
{
MenuInfo->SelectedMenuItem--;
}
}
else if ((KeyEvent == KEY_DOWN) && (Selected < Count))
{
/* Update the menu (deselect previous item) */
MenuInfo->SelectedMenuItem++;
UiDrawMenuItem(MenuInfo, Selected);
Selected++;
/* Skip past any separators */
if ((Selected < Count) &&
!(_stricmp(MenuInfo->MenuItemList[Selected], "SEPARATOR")))
{
MenuInfo->SelectedMenuItem++;
}
}
/* Select new item and update video buffer */
UiDrawMenuItem(MenuInfo, MenuInfo->SelectedMenuItem);
}
}
/* Return the pressed key */
return KeyEvent;
}
