qmenu.c

著名游戏quake2原代码最新版本(vc6.0可以编译的)

/*
Copyright (C) 1997-2001 Id Software, Inc.

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  

See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/
#include <string.h>
#include <ctype.h>

#include "client.h"
#include "qmenu.h"

static void	 Action_DoEnter( menuaction_s *a );
static void	 Action_Draw( menuaction_s *a );
static void  Menu_DrawStatusBar( const char *string );
static void	 Menulist_DoEnter( menulist_s *l );
static void	 MenuList_Draw( menulist_s *l );
static void	 Separator_Draw( menuseparator_s *s );
static void	 Slider_DoSlide( menuslider_s *s, int dir );
static void	 Slider_Draw( menuslider_s *s );
static void	 SpinControl_DoEnter( menulist_s *s );
static void	 SpinControl_Draw( menulist_s *s );
static void	 SpinControl_DoSlide( menulist_s *s, int dir );

#define RCOLUMN_OFFSET  16
#define LCOLUMN_OFFSET -16

extern refexport_t re;
extern viddef_t viddef;

#define VID_WIDTH viddef.width
#define VID_HEIGHT viddef.height

#define Draw_Char re.DrawChar
#define Draw_Fill re.DrawFill

void Action_DoEnter( menuaction_s *a )
{
	if ( a->generic.callback )
		a->generic.callback( a );
}

void Action_Draw( menuaction_s *a )
{
	if ( a->generic.flags & QMF_LEFT_JUSTIFY )
	{
		if ( a->generic.flags & QMF_GRAYED )
			Menu_DrawStringDark( a->generic.x + a->generic.parent->x + LCOLUMN_OFFSET, a->generic.y + a->generic.parent->y, a->generic.name );
		else
			Menu_DrawString( a->generic.x + a->generic.parent->x + LCOLUMN_OFFSET, a->generic.y + a->generic.parent->y, a->generic.name );
	}
	else
	{
		if ( a->generic.flags & QMF_GRAYED )
			Menu_DrawStringR2LDark( a->generic.x + a->generic.parent->x + LCOLUMN_OFFSET, a->generic.y + a->generic.parent->y, a->generic.name );
		else
			Menu_DrawStringR2L( a->generic.x + a->generic.parent->x + LCOLUMN_OFFSET, a->generic.y + a->generic.parent->y, a->generic.name );
	}
	if ( a->generic.ownerdraw )
		a->generic.ownerdraw( a );
}

qboolean Field_DoEnter( menufield_s *f )
{
	if ( f->generic.callback )
	{
		f->generic.callback( f );
		return true;
	}
	return false;
}

void Field_Draw( menufield_s *f )
{
	int i;
	char tempbuffer[128]="";

	if ( f->generic.name )
		Menu_DrawStringR2LDark( f->generic.x + f->generic.parent->x + LCOLUMN_OFFSET, f->generic.y + f->generic.parent->y, f->generic.name );

	strncpy( tempbuffer, f->buffer + f->visible_offset, f->visible_length );

	Draw_Char( f->generic.x + f->generic.parent->x + 16, f->generic.y + f->generic.parent->y - 4, 18 );
	Draw_Char( f->generic.x + f->generic.parent->x + 16, f->generic.y + f->generic.parent->y + 4, 24 );

	Draw_Char( f->generic.x + f->generic.parent->x + 24 + f->visible_length * 8, f->generic.y + f->generic.parent->y - 4, 20 );
	Draw_Char( f->generic.x + f->generic.parent->x + 24 + f->visible_length * 8, f->generic.y + f->generic.parent->y + 4, 26 );

	for ( i = 0; i < f->visible_length; i++ )
	{
		Draw_Char( f->generic.x + f->generic.parent->x + 24 + i * 8, f->generic.y + f->generic.parent->y - 4, 19 );
		Draw_Char( f->generic.x + f->generic.parent->x + 24 + i * 8, f->generic.y + f->generic.parent->y + 4, 25 );
	}

	Menu_DrawString( f->generic.x + f->generic.parent->x + 24, f->generic.y + f->generic.parent->y, tempbuffer );

	if ( Menu_ItemAtCursor( f->generic.parent ) == f )
	{
		int offset;

		if ( f->visible_offset )
			offset = f->visible_length;
		else
			offset = f->cursor;

		if ( ( ( int ) ( Sys_Milliseconds() / 250 ) ) & 1 )
		{
			Draw_Char( f->generic.x + f->generic.parent->x + ( offset + 2 ) * 8 + 8,
					   f->generic.y + f->generic.parent->y,
					   11 );
		}
		else
		{
			Draw_Char( f->generic.x + f->generic.parent->x + ( offset + 2 ) * 8 + 8,
					   f->generic.y + f->generic.parent->y,
					   ' ' );
		}
	}
}

qboolean Field_Key( menufield_s *f, int key )
{
	extern int keydown[];

	switch ( key )
	{
	case K_KP_SLASH:
		key = '/';
		break;
	case K_KP_MINUS:
		key = '-';
		break;
	case K_KP_PLUS:
		key = '+';
		break;
	case K_KP_HOME:
		key = '7';
		break;
	case K_KP_UPARROW:
		key = '8';
		break;
	case K_KP_PGUP:
		key = '9';
		break;
	case K_KP_LEFTARROW:
		key = '4';
		break;
	case K_KP_5:
		key = '5';
		break;
	case K_KP_RIGHTARROW:
		key = '6';
		break;
	case K_KP_END:
		key = '1';
		break;
	case K_KP_DOWNARROW:
		key = '2';
		break;
	case K_KP_PGDN:
		key = '3';
		break;
	case K_KP_INS:
		key = '0';
		break;
	case K_KP_DEL:
		key = '.';
		break;
	}

	if ( key > 127 )
	{
		switch ( key )
		{
		case K_DEL:
		default:
			return false;
		}
	}

	/*
	** support pasting from the clipboard
	*/
	if ( ( toupper( key ) == 'V' && keydown[K_CTRL] ) ||
		 ( ( ( key == K_INS ) || ( key == K_KP_INS ) ) && keydown[K_SHIFT] ) )
	{
		char *cbd;
		
		if ( ( cbd = Sys_GetClipboardData() ) != 0 )
		{
			strtok( cbd, "\n\r\b" );

			strncpy( f->buffer, cbd, f->length - 1 );
			f->cursor = strlen( f->buffer );
			f->visible_offset = f->cursor - f->visible_length;
			if ( f->visible_offset < 0 )
				f->visible_offset = 0;

			free( cbd );
		}
		return true;
	}

	switch ( key )
	{
	case K_KP_LEFTARROW:
	case K_LEFTARROW:
	case K_BACKSPACE:
		if ( f->cursor > 0 )
		{
			memmove( &f->buffer[f->cursor-1], &f->buffer[f->cursor], strlen( &f->buffer[f->cursor] ) + 1 );
			f->cursor--;

			if ( f->visible_offset )
			{
				f->visible_offset--;
			}
		}
		break;

	case K_KP_DEL:
	case K_DEL:
		memmove( &f->buffer[f->cursor], &f->buffer[f->cursor+1], strlen( &f->buffer[f->cursor+1] ) + 1 );
		break;

	case K_KP_ENTER:
	case K_ENTER:
	case K_ESCAPE:
	case K_TAB:
		return false;

	case K_SPACE:
	default:
		if ( !isdigit( key ) && ( f->generic.flags & QMF_NUMBERSONLY ) )
			return false;

		if ( f->cursor < f->length )
		{
			f->buffer[f->cursor++] = key;
			f->buffer[f->cursor] = 0;

			if ( f->cursor > f->visible_length )
			{
				f->visible_offset++;
			}
		}
	}

	return true;
}

void Menu_AddItem( menuframework_s *menu, void *item )
{
	if ( menu->nitems == 0 )
		menu->nslots = 0;

	if ( menu->nitems < MAXMENUITEMS )
	{
		menu->items[menu->nitems] = item;
		( ( menucommon_s * ) menu->items[menu->nitems] )->parent = menu;
		menu->nitems++;
	}

	menu->nslots = Menu_TallySlots( menu );
}

/*
** Menu_AdjustCursor
**
** This function takes the given menu, the direction, and attempts
** to adjust the menu's cursor so that it's at the next available
** slot.
*/
void Menu_AdjustCursor( menuframework_s *m, int dir )
{
	menucommon_s *citem;

	/*
	** see if it's in a valid spot
	*/
	if ( m->cursor >= 0 && m->cursor < m->nitems )
	{
		if ( ( citem = Menu_ItemAtCursor( m ) ) != 0 )
		{
			if ( citem->type != MTYPE_SEPARATOR )
				return;
		}
	}

	/*
	** it's not in a valid spot, so crawl in the direction indicated until we
	** find a valid spot
	*/
	if ( dir == 1 )
	{
		while ( 1 )
		{
			citem = Menu_ItemAtCursor( m );
			if ( citem )
				if ( citem->type != MTYPE_SEPARATOR )
					break;
			m->cursor += dir;
			if ( m->cursor >= m->nitems )
				m->cursor = 0;
		}
	}
	else
	{
		while ( 1 )
		{
			citem = Menu_ItemAtCursor( m );
			if ( citem )
				if ( citem->type != MTYPE_SEPARATOR )
					break;
			m->cursor += dir;
			if ( m->cursor < 0 )
				m->cursor = m->nitems - 1;
		}
	}
}

void Menu_Center( menuframework_s *menu )
{
	int height;