242 lines
8.2 KiB
C
242 lines
8.2 KiB
C
/***************************************************************************
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item.c - description
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-------------------
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begin : Thu Sep 20 2001
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copyright : (C) 2001 by Michael Speck
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email : kulkanie@gmx.net
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include "manager.h"
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extern SDL_Surface *stk_display;
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extern SDL_Surface *mbkgnd;
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extern StkFont *mfont, *mhfont;
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/*
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====================================================================
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Locals
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====================================================================
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*/
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float alpha_change = 0.4;
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/*
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====================================================================
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Create a basic item.
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====================================================================
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*/
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Item *item_create_basic( int type, char *name, char *hint )
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{
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Item *item = calloc( 1, sizeof( Item ) );
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/* name */
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item->name = strdup( name );
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/* id */
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item->item_id = -1;
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/* alpha */
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item->halpha = 0;
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item->alpha = 255;
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/* type */
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item->type = type;
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/* hint if astring was passed */
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if ( hint == 0 )
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item->hint = 0;
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else
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item->hint = hint_create( 0, 0, hint ); /* the position will be set when this item is adjusted in menu adjust */
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/* fonts */
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item->font = mfont;
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item->hfont = mhfont;
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/* background */
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item->bkgnd = mbkgnd;
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return item;
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}
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/*
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====================================================================
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Publics
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====================================================================
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*/
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/*
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====================================================================
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Create item.
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Return Value: item
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====================================================================
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*/
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Item *item_create_separator( char *name )
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{
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Item *item = item_create_basic( ITEM_SEPARATOR, name, 0 );
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return item;
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}
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Item *item_create_range( char *name, char *hint, int *val_int, int min, int max, int step )
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{
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Item *item = item_create_basic( ITEM_RANGE, name, hint );
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item->value = value_create_range_int( val_int, min, max, step );
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return item;
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}
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Item *item_create_switch( char *name, char *hint, int *val_int, char *str_off, char *str_on )
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{
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char **names = calloc( 2, sizeof( char* ) );
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Item *item = item_create_basic( ITEM_SWITCH, name, hint );
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names[0] = strdup( str_off );
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names[1] = strdup( str_on );
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item->value = value_create_range_str( val_int, names, 2 );
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free( names[0] ); free( names[1] ); free( names );
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return item;
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}
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Item *item_create_switch_x( char *name, char *hint, int *val_int, char **strings, int count )
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{
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Item *item = item_create_basic( ITEM_SWITCH_X, name, hint );
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item->value = value_create_range_str( val_int, strings, count );
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return item;
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}
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Item *item_create_key( char *name, char *hint, int *val_int, int *filter )
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{
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Item *item = item_create_basic( ITEM_KEY, name, hint );
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item->value = value_create_key( val_int, filter );
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return item;
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}
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Item *item_create_edit( char *name, char *hint, char *val_str, int limit )
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{
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Item *item = item_create_basic( ITEM_EDIT, name, hint );
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item->value = value_create_edit( val_str, limit );
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return item;
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}
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Item *item_create_link( char *name, char *hint, void *menu )
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{
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Item *item = item_create_basic( ITEM_LINK, name, hint );
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item->link = menu;
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return item;
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}
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Item *item_create_action( char *name, char *hint, int item_id )
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{
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Item *item = item_create_basic( ITEM_ACTION, name, hint );
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item->item_id = item_id;
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return item;
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}
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/*
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====================================================================
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Delete item (void pointer for compatiblity when using with list)
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====================================================================
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*/
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void item_delete( void *pitem )
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{
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Item *item = (Item*)pitem;
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if ( !item ) return;
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if ( item->name ) free( item->name );
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if ( item->value ) value_delete( item->value );
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if ( item->hint ) hint_delete( item->hint );
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free( item );
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}
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/*
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====================================================================
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Adjust alignment of name and value strings
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====================================================================
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*/
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void item_adjust( Item *item )
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{
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/* alignment - name */
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item->nx = 0; item->ny = item->h / 2; item->nalign = STK_FONT_ALIGN_LEFT | STK_FONT_ALIGN_CENTER_Y;
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if ( item->type == ITEM_LINK || item->type == ITEM_ACTION || item->type == ITEM_SEPARATOR ) {
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item->nx = item->w / 2;
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item->nalign = STK_FONT_ALIGN_CENTER_X | STK_FONT_ALIGN_CENTER_Y;
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}
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item->vx = item->w - 1; item->vy = item->h / 2; item->valign = STK_FONT_ALIGN_RIGHT | STK_FONT_ALIGN_CENTER_Y;
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/* hint position */
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if ( item->hint )
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hint_set_pos( item->hint, item->x + item->w * 0.6, item->y );
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}
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/*
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====================================================================
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Hide/Show item
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====================================================================
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*/
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void item_hide( Item *item )
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{
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stk_surface_blit( item->bkgnd,
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item->x, item->y, item->w, item->h,
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stk_display, item->x, item->y );
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stk_display_store_drect();
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}
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void item_show( Item *item )
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{
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/* name */
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item->font->align = item->nalign;
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item->hfont->align = item->nalign;
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stk_font_write( item->font, stk_display,
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item->x + item->nx, item->y + item->ny,
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item->alpha, item->name );
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if ( item->halpha > 0 )
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stk_font_write( item->hfont, stk_display,
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item->x + item->nx, item->y + item->ny,
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item->halpha, item->name );
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stk_display_store_drect();
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/* value string */
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if ( item->value ) {
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item->font->align = item->valign;
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item->hfont->align = item->valign;
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/* Is this a selected edit item? */
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if (item->highlighted && (item->type == ITEM_EDIT))
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{
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write_text_with_cursor( item->font, stk_display,
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item->x + item->vx, item->y + item->vy,
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item->value->val_str, item->alpha );
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if ( item->halpha > 0 )
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write_text_with_cursor( item->hfont, stk_display,
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item->x + item->vx, item->y + item->vy,
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item->value->val_str, item->halpha );
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}
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else
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{
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stk_font_write( item->font, stk_display,
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item->x + item->vx, item->y + item->vy,
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item->alpha, item->value->val_str );
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if ( item->halpha > 0 )
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stk_font_write( item->hfont, stk_display,
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item->x + item->vx, item->y + item->vy,
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item->halpha, item->value->val_str );
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}
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stk_display_store_drect();
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}
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}
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/*
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====================================================================
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Update alpha of item
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====================================================================
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*/
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void item_update_alpha( Item *item, int ms )
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{
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if ( item->highlighted ) {
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item->halpha = 255;
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item->alpha = 0;
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}
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else {
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if ( item->halpha > 0 ) {
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item->halpha -= alpha_change * ms;
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if ( item->halpha < 0 ) item->halpha = 0;
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}
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if ( item->alpha < 255 ) {
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item->alpha += alpha_change * ms;
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if ( item->alpha > 255 ) item->alpha = 255;
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}
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}
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}
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/*
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====================================================================
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Check if position's on item.
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====================================================================
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*/
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int item_focus( Item *item, int x, int y )
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{
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if ( item->type == ITEM_SEPARATOR ) return 0; /* may never be focused */
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return ( x >= item->x && y >= item->y && x < item->x + item->w && y < item->y + item->h );
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}
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