mmidynamenu.c

是一个手机功能的模拟程序

/*******************************************************************************

					CONDAT (UK)

********************************************************************************                                                                              

 This software product is the property of Condat (UK) Ltd and may not be
 disclosed to any third party without the express permission of the owner.                                 
                                                                              
********************************************************************************

 $Project name:	Basic MMI                                                      
 $Project code:	BMI (6349)                                                           
 $Module:		MMI
 $File:		    Mmi_dynamenu.c
 $Revision:		1.0                                                       
                                                                              
 $Author:		Condat(UK)                                                         
 $Date:		    25/10/00                                                      
                                                                               
********************************************************************************
                                                                              
 Description: Dynamic Menu Handling

 
                        
********************************************************************************
 $History: Mmi_dynamenu.c

	25/10/00			Original Condat(UK) BMI version.	
	   
 $End

*******************************************************************************/

/*******************************************************************************
                                                                              
                                Include Files
                                                                              
*******************************************************************************/
#define ENTITY_MFW

/* includes */
#include <string.h>
#include <stdio.h>
#include <stdlib.h>

#if defined (NEW_FRAME)

#include "typedefs.h"
#include "vsi.h"
#include "pei.h"
#include "custom.h"
#include "gsm.h"

#else

#include "stddefs.h"
#include "custom.h"
#include "gsm.h"
#include "vsi.h"

#endif
#include "dspl.h"
//#include "resourceapi.h"
#include "mmidynamenu.h"

/*  ------------- Constants definition ---------------   */

// default menu dimensions
#define MENU_LEFT	  0
#define MENU_INDENT  10
#define MENU_TOP	  0
#define MENU_RIGHT   96
#define MENU_BOTTOM  50

// scroll bar dimensions
#define SCROLL_BAR_LEFT 87
#define SMALL_RECT 91
#define ELEVAT_RECT (SMALL_RECT-2)


void menu_SetSelected(ST_MENU *menu, int id)
	// sets selected and current to item containing id
{
	menu->current = menu->selected = menu_FindIdIndex(menu, id);
}

int menu_Select(ST_MENU *menu)
	// makes current item selected and returns id
{
	menu->selected = menu->current ;
	return menu->items[menu->current].id;
}

int menu_GetCurrentID(const ST_MENU *menu)
	// returns the id of the current menu item
{
	return menu->items[menu->current].id;
}

int menu_FindIdIndex(const ST_MENU *menu, UINT16 id )
	// returns entry number in menu that matches id, or zero
{
	int menu_ctr;
	for (menu_ctr = 0; menu_ctr<menu->count; menu_ctr++ )
	{
		if ( menu->items[menu_ctr].id == id)
			return menu_ctr;
	}

	return 0 ;
}

void menu_Next(ST_MENU *menu)
	// steps forward one menu item
{
	if (menu->current == menu->count-1)
		menu->current = 0;
	else
		menu->current++;
}

void menu_Prev(ST_MENU *menu)
	// steps forward one menu item
{
	if (menu->current == 0)
		menu->current = menu->count-1;
	else
		menu->current--;
}

  
void menu_DrawMenu(const ST_MENU *menu )
	// draws a simple menu from information given
{
	// calc text positioning
    USHORT text_height = dspl_GetFontHeight()+1;
    USHORT nLines = MENU_BOTTOM / text_height;
    USHORT nPage  = nPage  = menu->current / nLines;

    USHORT line_ctr;

	// clear menu area
    dspl_Clear(MENU_LEFT,MENU_TOP,MENU_RIGHT, MENU_BOTTOM);

	// iterate through the visible menu items
    for (line_ctr = 0; line_ctr < nLines; line_ctr++)
    {
	    USHORT Attribute = DSPL_TXTATTR_NORMAL;
	    int nIdx = line_ctr + nPage * nLines;
		int line = MENU_TOP+1+line_ctr*text_height ;
        
        if (nIdx >= menu->count)
            break;

		if (nIdx == menu->current)		// draw highlight
        {
		      Attribute = DSPL_TXTATTR_INVERS;
//JVJE		      dspl_DrawFilledRect(MENU_INDENT-1, line-1, SCROLL_BAR_LEFT,text_height+line-1, DSPL_BLACK);
		}

		if (nIdx == menu->selected)		// draw selected marker
		{

		}
	
		// draw menu text
		switch (menu->items[nIdx].menu_type)
		{
		case ST_PROMPT_MENU:
//JVJE			dspl_Prompt (MENU_INDENT,line, Attribute, menu->items[nIdx].str.prompt); 
			break;
		case ST_TEXT_MENU:
        {
            char MenuItem[80];
//JVJE            memcpy( MenuItem, menu->items[nIdx].str.text->chars, string_GetLength( menu->items[nIdx].str.text ) );
//JVJE            MenuItem[ string_GetLength( menu->items[nIdx].str.text ) ] = '\0';
			dspl_TextOut( MENU_INDENT, line, Attribute, MenuItem ); 
        }
		break;
		case ST_PICTURE_MENU:
//JVJE			dspl_DrawIconEx(MENU_INDENT,line, &Attribute, menu->items[nIdx].str.icon, DSPL_ICON_STATE_SHOW);
			break;
		}
	
	}

	menu_DrawScrollBar(menu->current, menu->count);

}


void menu_DrawScrollBar(int pos, int max )
	// draws proportional scroll bar
{
	int box_top    = pos * MENU_BOTTOM / max;
	int box_bottom = (pos + 1) * MENU_BOTTOM / max;
	if (box_bottom-box_top<2) box_bottom = box_top + 2 ;

	dspl_Clear(SCROLL_BAR_LEFT,MENU_TOP,MENU_RIGHT,MENU_BOTTOM );
	dspl_DrawRect(SMALL_RECT,MENU_TOP,SMALL_RECT+1, MENU_BOTTOM );
	dspl_DrawRect(ELEVAT_RECT, box_top,ELEVAT_RECT+5, box_bottom );
}