yyxmenu.cpp

DOS下的图形界面开发包

// 1993 (c) ALL RIGHTS RESERVED
// AUTHOR  BY XuYongYong

/* 	yyxmenu.cpp
*/

#ifndef __YYXMENU_H
#include "yyxmenu.h"
#endif
#ifndef __YYXWIN_H
#include "yyxwin.h"
#endif
#ifndef __APPLICAT_H
#include "applicat.h"
#endif

void menu_class::select()
{
	setport (menu_viewport);
	PaintRect ( bounds,	MENU_ITEM_SELECT_COLOR ,COPY_PUT );
//	if (->pfather_menu != NULL ) //The Only exception caused the mouse dead
	pfather_menu->psub_menu_selected  =this  ;
	draw_help_texts (help);
	draw ();
}

void menu_class::unselect ()
{
	setport (menu_viewport);
	PaintRect ( bounds,	MENU_RECT_COLOR ,COPY_PUT );
	pfather_menu->psub_menu_selected =NULL;
	draw ();
}

void menu_class::offsetmenu(int dx,int dy )
{ Tmenu   * ptmp;
  int i;

	OffsetRect (&bounds,dx,dy );
	if ((ptmp =pson_menu) == NULL ) return;
	OffsetRect (&save_bitmap.bounds,dx,dy );
	for (i=0; i<sub_menu_nums ; i++ ){
		ptmp=(Tmenu *) ptmp->pright;
		ptmp->offsetmenu(dx,dy);
	}
}

void menu_class::draw_sub_menu_rect ()
{	struct Rect therect;

	setport (menu_viewport);
	FillRect ( save_bitmap.bounds , MENU_RECT_COLOR);
	therect = save_bitmap.bounds;
//	InsetRect (&therect,-5,-5 );
	setcolor (BLACK);
	if ( pfather_menu !=NULL ) FrameRect ( therect);
}


void menu_class::enter_menu ()
{   Tobject * ptmp;
	int i;

	if ( pcurrent_menu->psub_menu_selected==NULL ) 	return ;
	if (pcurrent_menu->psub_menu_selected->status & DISABLE ) return;
	if ( pcurrent_menu->psub_menu_selected->pson_menu == NULL ) {
		if (pcurrent_menu->pfather_menu == NULL ) {
			pcurrent_menu = pcurrent_menu->psub_menu_selected;
			if (pcurrent_menu->psub_menu_selected !=NULL )
				pcurrent_menu->psub_menu_selected->select
				();
			return;
		} else {
//			thequeue.SendMessage(pcurrent_menu->psub_menu_selected->ID
//				,MenuActionMSG,pcurrent_menu->psub_menu_selected );
// Note: this is a way of communication mode
			if (in_menu_trap)
				menu_save_queue.SendMessage(pcurrent_menu->psub_menu_selected->ID
				,MenuActionMSG,pcurrent_menu->psub_menu_selected );
			else
				thequeue.SendMessage(pcurrent_menu->psub_menu_selected->ID
				,MenuActionMSG,pcurrent_menu->psub_menu_selected );
			if (pcurrent_menu !=NULL ) pcurrent_menu->esc_all_menus();
//			menu_func ( pcurrent_menu->psub_menu_selected->ID  );
			return;
		}	/* execute a command */
	}
	else   {
	pcurrent_menu = pcurrent_menu->psub_menu_selected;
	pcurrent_menu->save_bitmap.size
		=(unsigned long) RectSize (pcurrent_menu->save_bitmap.bounds);
	pcurrent_menu->save_bitmap.pbitmap
		= myfarmalloc (pcurrent_menu->save_bitmap.size );
	getimage ( pcurrent_menu->save_bitmap.bounds.left,
		pcurrent_menu->save_bitmap.bounds.top,
		pcurrent_menu->save_bitmap.bounds.right,
		pcurrent_menu->save_bitmap.bounds.bottom,
		pcurrent_menu->save_bitmap.pbitmap);
	}
/* used by main menu and those selection which have sub_menus   */
	pcurrent_menu->draw_sub_menu_rect( );

	ptmp=pcurrent_menu->pson_menu;
	for (i=0;i<pcurrent_menu->sub_menu_nums ; i++ ) {
		if (! ( ptmp->status & INVISIBLE) )
		ptmp->draw ();
		ptmp=ptmp->pright ;
	}
	if (pcurrent_menu->psub_menu_selected !=NULL )
		pcurrent_menu->psub_menu_selected->select
			();
}

void menu_class::draw ()
{
	setport (menu_viewport);
	moveto
	(bounds.left+5,bounds.top);

	if (status & DISABLE ) {
		setcolor ( MENU_ITEM_DISABLED_COLOR );
		outtext  (title);
	}else if (hotkey == 0xff ) {
		if (this !=pfather_menu->psub_menu_selected )
		setcolor (MENU_ITEM_ENABLED_COLOR );
		else setcolor ( MENU_ITEM_SELECTED_COLOR );
		outtext (title );
	} else 	{
		if (this !=pfather_menu->psub_menu_selected )
		setcolor (MENU_ITEM_ENABLED_COLOR );
		else setcolor ( MENU_ITEM_SELECTED_COLOR );

		outtext (title );
		draw_hotkey(title,hotkey,bounds.left+5,bounds.top);
	}
}

void  menu_class::draw_help_texts (char *help_texts)
{
	setport (menu_viewport);
	FillRect ( on_line_help_rect,HELP_RECT_COLOR );
	moveto(on_line_help_rect.left+10,on_line_help_rect.top);
	setcolor (HELP_TEXT_COLOR);
	outtext (help_texts);
}


int  menu_class::esc_menu ()
{ // pcurrent_menu---<this
	if ( this->pfather_menu ==  NULL ) {
		if ( this->psub_menu_selected != NULL ) {
		this->psub_menu_selected->unselect
			();
//		this->psub_menu_selected =NULL;
///		if ( this->psub_menu_selected == NULL )		///5/2/1994
			draw_help_texts(this-> help); ///	else
///		draw_help_texts(this->psub_menu_selected->help);
		}
		if (in_menu_trap){
			in_menu_trap =FALSE;  ////!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
			sysmsg=menu_save_sysmsg;
			thequeue=menu_save_queue;
		}
		if ( pcurrent_selected_win !=NULL ) setport ( pcurrent_selected_win->viewport);
/////////////////////////////////////!!!!!!!!!!!!!!!!!!!!!!!!!!!
		return (0);
	}
/* above is for main menu */
	if (this->save_bitmap.pbitmap != NULL ) {
		putimage ( this->save_bitmap.bounds.left ,
			this->save_bitmap.bounds.top,
			this->save_bitmap.pbitmap ,COPY_PUT  );
		farfree ( this->save_bitmap.pbitmap  );
	}
	pcurrent_menu= this ->pfather_menu ;
///	if ( pcurrent_menu->psub_menu_selected == NULL )  ///5/2/1994
		draw_help_texts(pcurrent_menu-> help); ///	else
///	 draw_help_texts(pcurrent_menu->psub_menu_selected->help);
	return (1);
}

Tmenu * menu_class::get_next_sub_item (enum direction direct)
{ Tmenu *ptmp;
	ptmp =pcurrent_menu->psub_menu_selected;
	if (ptmp==NULL ) { if ( pcurrent_menu->pson_menu == NULL ) return NULL;
		else  ptmp =(Tmenu*)pcurrent_menu->pson_menu->pleft;
	}
	return (Tmenu*)ptmp->get_next_object( direct, TRUE);
	//determine whether to go to disabled item
}


int menu_class::Left_Right_key_handler(enum direction scroll_direction)
{
	if (pcurrent_menu->pfather_menu->pfather_menu ==NULL)
	{
		pcurrent_menu->esc_menu ();

		change_select (pcurrent_menu->psub_menu_selected,
			pcurrent_menu->get_next_sub_item ( scroll_direction));
		pcurrent_menu->psub_menu_selected->enter_menu ();
		return TRUE;
	 }
	 else if ((pcurrent_menu->pfather_menu == NULL )&&
			(pcurrent_menu->psub_menu_selected !=NULL )) {
		change_select (pcurrent_menu->psub_menu_selected,
			pcurrent_menu->get_next_sub_item ( scroll_direction));

		return TRUE;
	 }
	 return FALSE;
}

void menu_class::esc_all_menus(void)
{
	while ( pcurrent_menu->pfather_menu != NULL )
		pcurrent_menu->esc_menu ( );
	if (pcurrent_menu->psub_menu_selected !=NULL)
		pcurrent_menu->psub_menu_selected->unselect
			();
		if (in_menu_trap){
			in_menu_trap =FALSE;  ////!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
			sysmsg=menu_save_sysmsg;
			thequeue=menu_save_queue;
		}

		if ( pcurrent_selected_win !=NULL ) setport ( pcurrent_selected_win->viewport);
//	pcurrent_menu->psub_menu_selected=NULL;
}

int menu_class::bar_Imme_menu_key_handler( int key_scan_num)
{ Tobject * ptmp;
  int i;

  ptmp =pcurrent_menu->pson_menu;
  for(i=0;i<pcurrent_menu->sub_menu_nums;i++ ){
	ptmp=ptmp->pright;

	if ( (    (pcurrent_menu->pfather_menu ==NULL)
		   && (alt_key[ toupper(ptmp->title[ptmp->hotkey])-'A'] ==key_scan_num)
		 )
		 ||
		 (    (pcurrent_menu->pfather_menu !=NULL)
		   && (  (toupper( ptmp->title[ptmp->hotkey])) ==
				 (toupper( lo (key_scan_num))
			  )
		 )
		 ||
		 (    (toupper( ptmp->title[ptmp->hotkey])) ==' ' )
		   && ( key_scan_num == ALT_SPACE )
		 )
	   ) {
		change_select (
		pcurrent_menu->psub_menu_selected, ptmp );
		  if (pcurrent_menu->psub_menu_selected != NULL ) {
			if (!in_menu_trap){
				in_menu_trap =TRUE;	////!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
				menu_save_sysmsg=sysmsg;
				menu_save_queue=thequeue;
			}

			pcurrent_menu->psub_menu_selected->enter_menu ();
		  }
		return TRUE;
	}