sub2handler.c

神龙卡开发原代码

 /*
 * C Source file for sub2handler
 * Copyright (c) Sigma Designs 2002-2003.  All Rights Reserved.
 */

#include<string.h>
#include "OsdWindow.h"
#include "sub2handler.h"

void UnHiliteSel(OSD_WINDOW *wPtr,GR_RECT *rect)
{
	// Unhilite current
	if (curSub2 == &parental[0] || curSub2 == &region[0]) {
		rect->x = SUB2_XPOS + ((sub2Sel%2)*SUB2_NUM_OFF);
	}
	rect->y = curSub2[sub2Sel].y;
	DrawUnHilite(wPtr, rect);	
}

static void HiliteSel(OSD_WINDOW *wPtr,GR_RECT *rect)
{
	if (curSub2 == &parental[0] || curSub2 == &region[0]) {
		rect->x = SUB2_XPOS + ((sub2Sel%2)*SUB2_NUM_OFF);			
	}
	rect->y = curSub2[sub2Sel].y;
	DrawHilite(wPtr, rect);	
}

void Sub2KeydownHandler(OSD_WINDOW *wPtr,DATA_POINTER ptr)
{
	GR_EVENT *event;
	GR_RECT rect;
	int tmp, tmpinc;
	
	rect.x = SUB2_XPOS;
	if (curSub2 == &parental[0] || curSub2 == &region[0]) {
		rect.width = SUB2_NUM_WIDTH;
		tmpinc = 2;
	}
	else {
		rect.width = SUB2_WIDTH; 
		tmpinc = 1;
	}
	rect.height = SUB2_HEIGHT;
    event=wPtr->lastevent;
	
	switch(event->keystroke.ch) {
	case SHOW_UP_KEYDOWN:
	SelectNext_Label:
	
		// Find next enabled 
		tmp = sub2Sel - tmpinc;
		while (tmp >= 0) {
			if (curSub2[tmp].enabled)
				break;
			tmp -= tmpinc;
		}
		if (tmp >= 0) {
	UpdateHilite_Label:
			
			UnHiliteSel(wPtr,&rect);		
			// Hilite next one
			sub2Sel = tmp;
			HiliteSel(wPtr,&rect);
		}
		break;
			
	case SHOW_RIGHT_KEYDOWN:
		if (tmpinc != 2)
			break;
		tmpinc = 1;
		
		// fall through
		
	case SHOW_DOWN_KEYDOWN:
		// Find next enabled 		
		tmp = sub2Sel+tmpinc;	
		while (tmp < sub2Items) {
			if (curSub2[tmp].enabled)
				goto UpdateHilite_Label;
			tmp += tmpinc;
		}		
		break;
		
	case SHOW_LEFT_KEYDOWN:
		// Unhilite current sub1Sel
		if (tmpinc == 2) {
			if ((sub2Sel % 2) != 0) {
				tmpinc = 1;
				goto SelectNext_Label;
			}
		}
		goto MapSub1_Label;
		
	case SHOW_ENTER_KEYDOWN:
		if (curSub2 == parental) {
			//Check password
			struct {
				int *selected, sub2Sel;
			} a;
			
			a.selected = &curSub1->selected;
			a.sub2Sel = sub2Sel;
			UnHiliteSel(wPtr,&rect);
			MapPwdChkHandler(wPtr, (DATA_POINTER) &a);
			break;
		}
		
		curSub1->selected = sub2Sel;
				
		if (curSub2 == tvOut || curSub2 == hdOut || curSub2 == dviOut)
			SaveSettings(wPtr);
		
		MapSub1_Label:
		UnHiliteSel(wPtr,&rect);
		// Go back to sub1handler and tell it redisplay updated sub2Item selections
		MapSub1Handler(wPtr, NULL, 0);
		break;

	// Quit
	case SHOW_SETUP_KEYDOWN:
		SaveSettings(wPtr);
		MapMainWindow(wPtr, (DATA_POINTER)GR_TRUE);
		break;
		
	default:
		break;
	}
}

int
MapSub2Handler(OSD_WINDOW *wPtr, SUB_ITEM *pSub1, END_ITEM *pSub2, int items)
{
	GR_RECT rect;
	int i;
	
	if (pSub2 && items) {
		sub2Items = items;
		// refind enabled item
		sub2Sel = -1;
		curSub2 = pSub2;
		curSub1 = pSub1;
		for (i=0; i<sub2Items; i++)
			if (curSub2[i].enabled) {
				sub2Sel = i;
				break;
			}
		if (sub2Sel != -1) {		
			// Found enabled item, so switch handler
			wPtr->KbdHandler=Sub2KeydownHandler;
			wPtr->KbdHandler_dptr=NULL;
		
			// Redraw,
			if (pSub2 == &parental[0] || pSub2 == &region[0])
				rect.width = SUB2_NUM_WIDTH;
			else
				rect.width = SUB2_WIDTH;
			rect.x = SUB2_XPOS; rect.y = curSub2[sub2Sel].y; rect.height = SUB2_HEIGHT;
			DrawHilite(wPtr, &rect);			
			return 0;
		}
		
	}
	return -1;	// no enabled item found

}

void DrawSub2Menu(OSD_WINDOW *wPtr, END_ITEM *pSub2, int items)
{
	int i;
	GR_RECT rect;

	// Clear sub1 background

	ClearSub2Background(wPtr);
	
	if (pSub2 == &parental[0] || pSub2 == &region[0]) {
		for (i=0; i<items; i++) {
			rect.x = SUB2_XPOS + ((i%2)*SUB2_NUM_OFF); rect.y = pSub2->y; 
			rect.width = SUB2_NUM_WIDTH;  rect.height = SUB2_HEIGHT;
			DrawButton(wPtr, &rect);	
			GrText(wPtr->wid, wPtr->gc, SUB2_XPOS+14+((i%2)*SUB2_NUM_OFF), pSub2->y+SUB_TEXT_YPOS, pSub2->text,-1, GR_TFASCII);
			pSub2++;				
		}
	}
	else {
		for (i=0; i<items; i++) {
			rect.x = SUB2_XPOS; rect.y = pSub2->y; rect.width = SUB2_WIDTH;  rect.height = SUB2_HEIGHT;
			DrawButton(wPtr, &rect);		
			if (pSub2->enabled)
				GrSetGCForeground (wPtr->gc, MWPALINDEX(255));
			else
				GrSetGCForeground (wPtr->gc, MWPALINDEX(PALINDEX_DISABLE));			
			GrText(wPtr->wid, wPtr->gc, SUB2_XPOS+14, pSub2->y+SUB_TEXT_YPOS, pSub2->text,-1, GR_TFASCII);
			pSub2++;
		}	
	}
	
	GrSetGCForeground (wPtr->gc, MWPALINDEX(255));

}

void ClearSub2Background(OSD_WINDOW *wPtr)
{

	GrFillRect(wPtr->wid, wPtr->gc_pal0, SUB2_XPOS, SUB2_YPOS, SUB2_WIDTH, 300);	
	return;
}