ui_qmenu.c

3D 游戏界的大牛人 John Carmack 终于放出了 Q3 的源代码

/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.

This file is part of Quake III Arena source code.

Quake III Arena source code 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.

Quake III Arena source code 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 Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/
//
/**********************************************************************
	UI_QMENU.C

	Quake's menu framework system.
**********************************************************************/
#include "ui_local.h"

sfxHandle_t menu_in_sound;
sfxHandle_t menu_move_sound;
sfxHandle_t menu_out_sound;
sfxHandle_t menu_buzz_sound;
sfxHandle_t menu_null_sound;
sfxHandle_t weaponChangeSound;

static qhandle_t	sliderBar;
static qhandle_t	sliderButton_0;
static qhandle_t	sliderButton_1;

vec4_t menu_text_color	    = {1.0f, 1.0f, 1.0f, 1.0f};
vec4_t menu_dim_color       = {0.0f, 0.0f, 0.0f, 0.75f};
vec4_t color_black	    = {0.00f, 0.00f, 0.00f, 1.00f};
vec4_t color_white	    = {1.00f, 1.00f, 1.00f, 1.00f};
vec4_t color_yellow	    = {1.00f, 1.00f, 0.00f, 1.00f};
vec4_t color_blue	    = {0.00f, 0.00f, 1.00f, 1.00f};
vec4_t color_lightOrange    = {1.00f, 0.68f, 0.00f, 1.00f };
vec4_t color_orange	    = {1.00f, 0.43f, 0.00f, 1.00f};
vec4_t color_red	    = {1.00f, 0.00f, 0.00f, 1.00f};
vec4_t color_dim	    = {0.00f, 0.00f, 0.00f, 0.25f};

// current color scheme
vec4_t pulse_color          = {1.00f, 1.00f, 1.00f, 1.00f};
vec4_t text_color_disabled  = {0.50f, 0.50f, 0.50f, 1.00f};	// light gray
vec4_t text_color_normal    = {1.00f, 0.43f, 0.00f, 1.00f};	// light orange
vec4_t text_color_highlight = {1.00f, 1.00f, 0.00f, 1.00f};	// bright yellow
vec4_t listbar_color        = {1.00f, 0.43f, 0.00f, 0.30f};	// transluscent orange
vec4_t text_color_status    = {1.00f, 1.00f, 1.00f, 1.00f};	// bright white	

// action widget
static void	Action_Init( menuaction_s *a );
static void	Action_Draw( menuaction_s *a );

// radio button widget
static void	RadioButton_Init( menuradiobutton_s *rb );
static void	RadioButton_Draw( menuradiobutton_s *rb );
static sfxHandle_t RadioButton_Key( menuradiobutton_s *rb, int key );

// slider widget
static void Slider_Init( menuslider_s *s );
static sfxHandle_t Slider_Key( menuslider_s *s, int key );
static void	Slider_Draw( menuslider_s *s );

// spin control widget
static void	SpinControl_Init( menulist_s *s );
static void	SpinControl_Draw( menulist_s *s );
static sfxHandle_t SpinControl_Key( menulist_s *l, int key );

// text widget
static void Text_Init( menutext_s *b );
static void Text_Draw( menutext_s *b );

// scrolllist widget
static void	ScrollList_Init( menulist_s *l );
sfxHandle_t ScrollList_Key( menulist_s *l, int key );

// proportional text widget
static void PText_Init( menutext_s *b );
static void PText_Draw( menutext_s *b );

// proportional banner text widget
static void BText_Init( menutext_s *b );
static void BText_Draw( menutext_s *b );

/*
=================
Text_Init
=================
*/
static void Text_Init( menutext_s *t )
{
	t->generic.flags |= QMF_INACTIVE;
}

/*
=================
Text_Draw
=================
*/
static void Text_Draw( menutext_s *t )
{
	int		x;
	int		y;
	char	buff[512];	
	float*	color;

	x = t->generic.x;
	y = t->generic.y;

	buff[0] = '\0';

	// possible label
	if (t->generic.name)
		strcpy(buff,t->generic.name);

	// possible value
	if (t->string)
		strcat(buff,t->string);
		
	if (t->generic.flags & QMF_GRAYED)
		color = text_color_disabled;
	else
		color = t->color;

	UI_DrawString( x, y, buff, t->style, color );
}

/*
=================
BText_Init
=================
*/
static void BText_Init( menutext_s *t )
{
	t->generic.flags |= QMF_INACTIVE;
}

/*
=================
BText_Draw
=================
*/
static void BText_Draw( menutext_s *t )
{
	int		x;
	int		y;
	float*	color;

	x = t->generic.x;
	y = t->generic.y;

	if (t->generic.flags & QMF_GRAYED)
		color = text_color_disabled;
	else
		color = t->color;

	UI_DrawBannerString( x, y, t->string, t->style, color );
}

/*
=================
PText_Init
=================
*/
static void PText_Init( menutext_s *t )
{
	int	x;
	int	y;
	int	w;
	int	h;
	float	sizeScale;

	sizeScale = UI_ProportionalSizeScale( t->style );

	x = t->generic.x;
	y = t->generic.y;
	w = UI_ProportionalStringWidth( t->string ) * sizeScale;
	h =	PROP_HEIGHT * sizeScale;

	if( t->generic.flags & QMF_RIGHT_JUSTIFY ) {
		x -= w;
	}
	else if( t->generic.flags & QMF_CENTER_JUSTIFY ) {
		x -= w / 2;
	}

	t->generic.left   = x - PROP_GAP_WIDTH * sizeScale;
	t->generic.right  = x + w + PROP_GAP_WIDTH * sizeScale;
	t->generic.top    = y;
	t->generic.bottom = y + h;
}

/*
=================
PText_Draw
=================
*/
static void PText_Draw( menutext_s *t )
{
	int		x;
	int		y;
	float *	color;
	int		style;

	x = t->generic.x;
	y = t->generic.y;

	if (t->generic.flags & QMF_GRAYED)
		color = text_color_disabled;
	else
		color = t->color;

	style = t->style;
	if( t->generic.flags & QMF_PULSEIFFOCUS ) {
		if( Menu_ItemAtCursor( t->generic.parent ) == t ) {
			style |= UI_PULSE;
		}
		else {
			style |= UI_INVERSE;
		}
	}

	UI_DrawProportionalString( x, y, t->string, style, color );
}

/*
=================
Bitmap_Init
=================
*/
void Bitmap_Init( menubitmap_s *b )
{
	int	x;
	int	y;
	int	w;
	int	h;

	x = b->generic.x;
	y = b->generic.y;
	w = b->width;
	h =	b->height;
	if( w < 0 ) {
		w = -w;
	}
	if( h < 0 ) {
		h = -h;
	}

	if (b->generic.flags & QMF_RIGHT_JUSTIFY)
	{
		x = x - w;
	}
	else if (b->generic.flags & QMF_CENTER_JUSTIFY)
	{
		x = x - w/2;
	}

	b->generic.left   = x;
	b->generic.right  = x + w;
	b->generic.top    = y;
	b->generic.bottom = y + h;

	b->shader      = 0;
	b->focusshader = 0;
}

/*
=================
Bitmap_Draw
=================
*/
void Bitmap_Draw( menubitmap_s *b )
{
	float	x;
	float	y;
	float	w;
	float	h;
	vec4_t	tempcolor;
	float*	color;

	x = b->generic.x;
	y = b->generic.y;
	w = b->width;
	h =	b->height;

	if (b->generic.flags & QMF_RIGHT_JUSTIFY)
	{
		x = x - w;
	}
	else if (b->generic.flags & QMF_CENTER_JUSTIFY)
	{
		x = x - w/2;
	}

	// used to refresh shader
	if (b->generic.name && !b->shader)
	{
		b->shader = trap_R_RegisterShaderNoMip( b->generic.name );
		if (!b->shader && b->errorpic)
			b->shader = trap_R_RegisterShaderNoMip( b->errorpic );
	}

	if (b->focuspic && !b->focusshader)
		b->focusshader = trap_R_RegisterShaderNoMip( b->focuspic );

	if (b->generic.flags & QMF_GRAYED)
	{
		if (b->shader)
		{
			trap_R_SetColor( colorMdGrey );
			UI_DrawHandlePic( x, y, w, h, b->shader );
			trap_R_SetColor( NULL );
		}
	}
	else
	{
		if (b->shader)
			UI_DrawHandlePic( x, y, w, h, b->shader );

		// bk001204 - parentheses
		if (  ( (b->generic.flags & QMF_PULSE) 
			|| (b->generic.flags & QMF_PULSEIFFOCUS) )
		      && (Menu_ItemAtCursor( b->generic.parent ) == b))
		{	
			if (b->focuscolor)			
			{
				tempcolor[0] = b->focuscolor[0];
				tempcolor[1] = b->focuscolor[1];
				tempcolor[2] = b->focuscolor[2];
				color        = tempcolor;	
			}
			else
				color = pulse_color;
			color[3] = 0.5+0.5*sin(uis.realtime/PULSE_DIVISOR);

			trap_R_SetColor( color );
			UI_DrawHandlePic( x, y, w, h, b->focusshader );
			trap_R_SetColor( NULL );
		}
		else if ((b->generic.flags & QMF_HIGHLIGHT) || ((b->generic.flags & QMF_HIGHLIGHT_IF_FOCUS) && (Menu_ItemAtCursor( b->generic.parent ) == b)))
		{	
			if (b->focuscolor)
			{
				trap_R_SetColor( b->focuscolor );
				UI_DrawHandlePic( x, y, w, h, b->focusshader );
				trap_R_SetColor( NULL );
			}
			else
				UI_DrawHandlePic( x, y, w, h, b->focusshader );
		}
	}
}

/*
=================
Action_Init
=================
*/
static void Action_Init( menuaction_s *a )
{
	int	len;

	// calculate bounds
	if (a->generic.name)
		len = strlen(a->generic.name);
	else
		len = 0;

	// left justify text
	a->generic.left   = a->generic.x; 
	a->generic.right  = a->generic.x + len*BIGCHAR_WIDTH;
	a->generic.top    = a->generic.y;
	a->generic.bottom = a->generic.y + BIGCHAR_HEIGHT;
}

/*
=================
Action_Draw
=================
*/
static void Action_Draw( menuaction_s *a )
{
	int		x, y;
	int		style;
	float*	color;

	style = 0;
	color = menu_text_color;
	if ( a->generic.flags & QMF_GRAYED )
	{
		color = text_color_disabled;
	}
	else if (( a->generic.flags & QMF_PULSEIFFOCUS ) && ( a->generic.parent->cursor == a->generic.menuPosition ))
	{
		color = text_color_highlight;
		style = UI_PULSE;
	}
	else if (( a->generic.flags & QMF_HIGHLIGHT_IF_FOCUS ) && ( a->generic.parent->cursor == a->generic.menuPosition ))
	{
		color = text_color_highlight;
	}
	else if ( a->generic.flags & QMF_BLINK )
	{
		style = UI_BLINK;
		color = text_color_highlight;
	}

	x = a->generic.x;
	y = a->generic.y;

	UI_DrawString( x, y, a->generic.name, UI_LEFT|style, color );

	if ( a->generic.parent->cursor == a->generic.menuPosition )
	{
		// draw cursor
		UI_DrawChar( x - BIGCHAR_WIDTH, y, 13, UI_LEFT|UI_BLINK, color);
	}
}

/*
=================
RadioButton_Init
=================
*/
static void RadioButton_Init( menuradiobutton_s *rb )
{
	int	len;

	// calculate bounds
	if (rb->generic.name)
		len = strlen(rb->generic.name);
	else
		len = 0;

	rb->generic.left   = rb->generic.x - (len+1)*SMALLCHAR_WIDTH;
	rb->generic.right  = rb->generic.x + 6*SMALLCHAR_WIDTH;
	rb->generic.top    = rb->generic.y;
	rb->generic.bottom = rb->generic.y + SMALLCHAR_HEIGHT;
}

/*
=================
RadioButton_Key
=================
*/
static sfxHandle_t RadioButton_Key( menuradiobutton_s *rb, int key )
{
	switch (key)
	{
		case K_MOUSE1:
			if (!(rb->generic.flags & QMF_HASMOUSEFOCUS))
				break;

		case K_JOY1:
		case K_JOY2:
		case K_JOY3:
		case K_JOY4:
		case K_ENTER:
		case K_KP_ENTER:
		case K_KP_LEFTARROW:
		case K_LEFTARROW:
		case K_KP_RIGHTARROW:
		case K_RIGHTARROW:
			rb->curvalue = !rb->curvalue;
			if ( rb->generic.callback )
				rb->generic.callback( rb, QM_ACTIVATED );

			return (menu_move_sound);
	}

	// key not handled
	return 0;
}

/*
=================
RadioButton_Draw
=================
*/
static void RadioButton_Draw( menuradiobutton_s *rb )
{
	int	x;
	int y;
	float *color;
	int	style;
	qboolean focus;

	x = rb->generic.x;
	y = rb->generic.y;

	focus = (rb->generic.parent->cursor == rb->generic.menuPosition);

	if ( rb->generic.flags & QMF_GRAYED )
	{
		color = text_color_disabled;
		style = UI_LEFT|UI_SMALLFONT;
	}
	else if ( focus )
	{
		color = text_color_highlight;
		style = UI_LEFT|UI_PULSE|UI_SMALLFONT;
	}
	else
	{
		color = text_color_normal;
		style = UI_LEFT|UI_SMALLFONT;
	}

	if ( focus )
	{
		// draw cursor
		UI_FillRect( rb->generic.left, rb->generic.top, rb->generic.right-rb->generic.left+1, rb->generic.bottom-rb->generic.top+1, listbar_color ); 
		UI_DrawChar( x, y, 13, UI_CENTER|UI_BLINK|UI_SMALLFONT, color);
	}

	if ( rb->generic.name )
		UI_DrawString( x - SMALLCHAR_WIDTH, y, rb->generic.name, UI_RIGHT|UI_SMALLFONT, color );

	if ( !rb->curvalue )
	{
		UI_DrawHandlePic( x + SMALLCHAR_WIDTH, y + 2, 16, 16, uis.rb_off);
		UI_DrawString( x + SMALLCHAR_WIDTH + 16, y, "off", style, color );
	}
	else
	{
		UI_DrawHandlePic( x + SMALLCHAR_WIDTH, y + 2, 16, 16, uis.rb_on );
		UI_DrawString( x + SMALLCHAR_WIDTH + 16, y, "on", style, color );
	}
}

/*
=================
Slider_Init
=================
*/
static void Slider_Init( menuslider_s *s )
{
	int len;

	// calculate bounds
	if (s->generic.name)
		len = strlen(s->generic.name);
	else
		len = 0;

	s->generic.left   = s->generic.x - (len+1)*SMALLCHAR_WIDTH; 
	s->generic.right  = s->generic.x + (SLIDER_RANGE+2+1)*SMALLCHAR_WIDTH;
	s->generic.top    = s->generic.y;
	s->generic.bottom = s->generic.y + SMALLCHAR_HEIGHT;
}

/*
=================
Slider_Key
=================
*/
static sfxHandle_t Slider_Key( menuslider_s *s, int key )
{
	sfxHandle_t	sound;
	int			x;
	int			oldvalue;

	switch (key)
	{
		case K_MOUSE1:
			x           = uis.cursorx - s->generic.x - 2*SMALLCHAR_WIDTH;
			oldvalue    = s->curvalue;
			s->curvalue = (x/(float)(SLIDER_RANGE*SMALLCHAR_WIDTH)) * (s->maxvalue-s->minvalue) + s->minvalue;

			if (s->curvalue < s->minvalue)
				s->curvalue = s->minvalue;
			else if (s->curvalue > s->maxvalue)
				s->curvalue = s->maxvalue;