/**
* MousePushEventHandler removes the old handler by placing it on
* a stack and sets up the new event handler. The old event handler
* will be restored when a call to MousePopEventHandler is called.
*
* @param mouseEventHandler -- function to call on events, or NULL
* for none.
*
*<!-----------------------------------------------------------------------*/
T_void MousePushEventHandler(T_mouseEventHandler mouseEventHandler)
{
DebugRoutine("MousePushEventHandler") ;
/* Store the old event handler. */
DoubleLinkListAddElementAtFront(
G_eventStack,
(T_void *)MouseGetEventHandler) ;
/* set up the new handler. */
MouseSetEventHandler(mouseEventHandler) ;
DebugEnd() ;
}
T_void FormPush(T_void)
{
T_formObjectID *p_formObjs;
T_void *p_state;
T_formVariousValues *p_values;
DebugRoutine("FormPush");
/* Make sure we have a list. */
if (G_formStack == DOUBLE_LINK_LIST_BAD)
G_formStack = DoubleLinkListCreate();
/* Create a list of form objects to put on the stack. */
p_formObjs = MemAlloc(sizeof(G_formObjectArray));
DebugCheck(p_formObjs != NULL);
memcpy(p_formObjs, G_formObjectArray, sizeof(G_formObjectArray));
DoubleLinkListAddElementAtFront(G_formStack, p_formObjs);
/* Clear the list of form objects */
memset(G_formObjectArray, 0, sizeof(G_formObjectArray));
/* Put the buttons on the list. */
p_state = ButtonGetStateBlock();
DoubleLinkListAddElementAtFront(G_formStack, p_state);
/* Put the graphics on the list. */
p_state = GraphicGetStateBlock();
DoubleLinkListAddElementAtFront(G_formStack, p_state);
/* Put the sliders on the list. */
p_state = SliderGetStateBlock();
DoubleLinkListAddElementAtFront(G_formStack, p_state);
/* Put the text boxes on the list. */
p_state = TxtboxGetStateBlock();
DoubleLinkListAddElementAtFront(G_formStack, p_state);
/* Put the callback and other flags in the list */
p_values = MemAlloc(sizeof(T_formVariousValues));
p_values->callback = formcallback;
p_values->hasText = G_formHasTextBoxes;
p_values->hasButtons = G_formHasButtons;
DoubleLinkListAddElementAtFront(G_formStack, p_values);
DebugEnd();
}
