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fe_settings.cpp
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fe_settings.cpp
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/*
*
* Attract-Mode frontend
* Copyright (C) 2013-16 Andrew Mickelson
*
* This file is part of Attract-Mode.
*
* Attract-Mode 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 3 of the License, or
* (at your option) any later version.
*
* Attract-Mode 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 Attract-Mode. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "fe_util.hpp"
#include "fe_settings.hpp"
#include "fe_present.hpp"
#include "image_loader.hpp"
#include "zip.hpp"
#include <iostream>
#include <sstream>
#include "nowide/fstream.hpp"
#include <cstring>
#include <iomanip>
#include <algorithm>
#include <stdlib.h>
#include <cctype>
#include <SFML/System/Clock.hpp>
#include <SFML/Config.hpp>
#ifndef NO_MOVIE
#include "media.hpp" // for FeMedia::is_supported_media(), get/set_current_decoder()
#endif
#if defined(SFML_SYSTEM_WINDOWS)
const char *FE_DEFAULT_CFG_PATH = "./";
#elif defined(SFML_SYSTEM_MACOS)
const char *FE_DEFAULT_CFG_PATH = "$HOME/.attract/";
#elif defined(SFML_SYSTEM_ANDROID)
const char *FE_DEFAULT_CFG_PATH = "$HOME/";
#else
const char *FE_DEFAULT_CFG_PATH = "$HOME/.attract/";
#endif
const char *FE_ART_EXTENSIONS[] =
{
".png",
".jpg",
".jpeg",
".bmp",
".tga",
NULL
};
#ifdef DATA_PATH
const char *FE_DATA_PATH = DATA_PATH;
#else
const char *FE_DATA_PATH = NULL;
#endif
const char *FE_CFG_FILE = "attract.cfg";
const char *FE_STATE_FILE = "attract.am";
const char *FE_SCREENSAVER_FILE = "screensaver.nut";
const char *FE_PLUGIN_FILE = "plugin.nut";
const char *FE_LOADER_FILE = "loader.nut";
const char *FE_EMULATOR_INIT_FILE = "init.nut";
const char *FE_INTRO_FILE = "intro.nut";
const char *FE_LAYOUT_FILE_BASE = "layout";
const char *FE_LAYOUT_FILE_EXTENSION = ".nut";
const char *FE_LANGUAGE_FILE_EXTENSION = ".msg";
const char *FE_PLUGIN_FILE_EXTENSION = FE_LAYOUT_FILE_EXTENSION;
const char *FE_GAME_EXTRA_FILE_EXTENSION = ".cfg";
const char *FE_GAME_OVERVIEW_FILE_EXTENSION = ".txt";
const char *FE_LAYOUT_SUBDIR = "layouts/";
const char *FE_SOUND_SUBDIR = "sounds/";
const char *FE_SCREENSAVER_SUBDIR = "screensaver/";
const char *FE_PLUGIN_SUBDIR = "plugins/";
const char *FE_LANGUAGE_SUBDIR = "language/";
const char *FE_MODULES_SUBDIR = "modules/";
const char *FE_LOADER_SUBDIR = "loader/";
const char *FE_INTRO_SUBDIR = "intro/";
const char *FE_SCRAPER_SUBDIR = "scraper/";
const char *FE_MENU_ART_SUBDIR = "menu-art/";
const char *FE_OVERVIEW_SUBDIR = "overview/";
const char *FE_EMULATOR_SCRIPT_SUBDIR = "emulators/script/";
const char *FE_LIST_DEFAULT = "default-display.cfg";
const char *FE_FILTER_DEFAULT = "default-filter.cfg";
const char *FE_CFG_YES_STR = "yes";
const char *FE_CFG_NO_STR = "no";
const std::string FE_EMPTY_STRING;
bool internal_resolve_config_file(
const std::string &config_path,
std::string &result,
const char *subdir,
const std::string &name )
{
std::string path;
path = config_path;
if ( subdir ) path += subdir;
path += name;
if ( file_exists( path ) )
{
result = path;
return true;
}
if ( FE_DATA_PATH != NULL )
{
path = FE_DATA_PATH;
if ( subdir ) path += subdir;
path += name;
if ( file_exists( path ) )
{
result = path;
return true;
}
}
return false;
}
int find_idx_in_vec( int idx, const std::vector<int> &vec )
{
int i=0;
for ( i=0; i < (int)vec.size() - 1; i++ )
{
if ( idx <= vec[i] )
break;
}
return i;
}
FeLanguage::FeLanguage( const std::string &l )
: language( l )
{
}
const char *FeSettings::windowModeTokens[] =
{
"default",
"fullscreen",
"window",
"window_no_border",
NULL
};
const char *FeSettings::windowModeDispTokens[] =
{
"Fill Screen (Default)",
"Fullscreen Mode",
"Window",
"Window (No Border)",
NULL
};
const char *FeSettings::screenRotationTokens[] =
{
"none",
"right",
"flip",
"left",
NULL
};
const char *FeSettings::screenRotationDispTokens[] =
{
"None (Default)",
"Right",
"Flip",
"Left",
NULL
};
const char *FeSettings::antialiasingTokens[] =
{
"0",
"2",
"4",
"8",
NULL
};
const char *FeSettings::antialiasingDispTokens[] =
{
"None (Default)",
"MSAA x2",
"MSAA x4",
"MSAA x8",
NULL
};
const char *FeSettings::anisotropicTokens[] =
{
"0",
"2",
"4",
"8",
"16",
NULL
};
const char *FeSettings::anisotropicDispTokens[] =
{
"None (Default)",
"x2",
"x4",
"x8",
"x16",
NULL
};
const char *FeSettings::filterWrapTokens[] =
{
"default",
"jump_to_next_display",
"no_wrap",
NULL
};
const char *FeSettings::filterWrapDispTokens[] =
{
"Wrap within Display (Default)",
"Jump to Next Display",
"No Wrap",
NULL
};
const char *FeSettings::startupTokens[] =
{
"default",
"launch_last_game",
"displays_menu",
NULL
};
const char *FeSettings::startupDispTokens[] =
{
"Show Last Selection (Default)",
"Launch Last Game",
"Show Displays Menu",
NULL
};
FeSettings::FeSettings( const std::string &config_path )
: m_rl( m_config_path ),
m_inputmap(),
m_saver_params( FeLayoutInfo::ScreenSaver ),
m_intro_params( FeLayoutInfo::Intro ),
m_current_layout_params( FeLayoutInfo::Layout ),
m_display_menu_per_display_params( FeLayoutInfo::Menu ),
m_current_display( -1 ),
m_current_config_object( NULL ),
m_ssaver_time( 600 ),
m_last_launch_display( 0 ),
m_last_launch_filter( 0 ),
m_last_launch_rom( 0 ),
m_last_launch_clone( -1 ),
m_clone_index( -1 ),
m_joy_thresh( 75 ),
m_mouse_thresh( 10 ),
m_current_search_index( 0 ),
m_current_display_index( 0 ),
m_displays_menu_exit( true ),
m_hide_brackets( false ),
m_group_clones( false ),
m_startup_mode( ShowLastSelection ),
m_confirm_favs( true ),
m_confirm_exit( true ),
m_track_usage( true ),
m_multimon( false ),
#if defined(SFML_SYSTEM_LINUX) || defined(FORCE_FULLSCREEN)
m_window_mode( Fullscreen ),
#else
m_window_mode( Default ),
#endif
m_screen_rotation( RotateNone ),
m_antialiasing( 0 ),
m_anisotropic( 0 ),
m_smooth_images( true ),
m_filter_wrap_mode( WrapWithinDisplay ),
m_selection_max_step( 128 ),
m_selection_speed( 40 ),
m_image_cache_mbytes( 100 ),
#ifdef SFML_SYSTEM_MACOS
m_move_mouse_on_launch( false ), // hotcorners
#else
m_move_mouse_on_launch( true ),
#endif
m_scrape_snaps( true ),
m_scrape_marquees( true ),
m_scrape_flyers( false ),
m_scrape_wheels( true ),
m_scrape_fanart( false ),
m_scrape_vids( false ),
m_scrape_overview( true ),
#ifdef SFML_SYSTEM_WINDOWS
m_hide_console( false ),
#endif
m_power_saving( false ),
m_loaded_game_extras( false ),
m_present_state( Layout_Showing ),
m_ui_font_size( 0 )
{
if ( config_path.empty() )
m_config_path = absolute_path( clean_path(FE_DEFAULT_CFG_PATH) );
else
m_config_path = absolute_path( clean_path( config_path, true ) );
// absolute_path can drop the trailing slash
if (
#ifdef SFML_SYSTEM_WINDOWS
(m_config_path[m_config_path.size()-1] != '\\') &&
#endif
(m_config_path[m_config_path.size()-1] != '/') )
m_config_path += '/';
}
void FeSettings::clear()
{
m_current_config_object=NULL;
m_current_display = -1;
m_displays.clear();
m_rl.clear_emulators();
m_plugins.clear();
}
void FeSettings::load()
{
clear();
std::string load_language( "en" );
std::string filename = m_config_path + FE_CFG_FILE;
if (( FE_DATA_PATH != NULL ) && ( !directory_exists( FE_DATA_PATH ) ))
{
FeLog() << "Warning: Attract-Mode was compiled to look for its default configuration files in: "
<< FE_DATA_PATH << ", which is not available." << std::endl;
}
if ( load_from_file( filename ) == false )
{
FeLog() << "Config file not found: " << filename << std::endl;
}
else
{
FeLog() << "Config: " << filename << std::endl;
if ( m_language.empty() )
m_language = "en";
load_language = m_language;
}
// Load language strings now.
//
// If we didn't find a config file, then we leave m_language empty but load the english language strings
// now. The user will be prompted (using the english strings) to select a language and then launched
// straight into configuration mode.
//
// If a config file was found but it didn't specify a language, then we use the english language (this
// preserves the previous behaviour for config files created in an earlier version)
//
internal_load_language( load_language );
//
// Initialize the regular expression used when sorting by title now...
//
std::string rex_str;
get_translation( "_sort_regexp", rex_str );
FeRomListSorter::init_title_rex( rex_str );
load_state();
m_current_display_index = m_current_display;
if ( get_startup_mode() == ShowDisplaysMenu )
m_current_display = -1;
init_display();
// Make sure we have some keyboard mappings
//
m_inputmap.initialize_mappings();
// If no menu prompt is configured, default to calling it "Displays Menu" (in current language)
//
if ( m_menu_prompt.empty() )
get_translation( "Displays Menu", m_menu_prompt );
}
const char *FeSettings::configSettingStrings[] =
{
"language",
"exit_command",
"exit_message",
"ui_font_size",
"screen_saver_timeout",
"displays_menu_exit",
"hide_brackets",
"group_clones",
"startup_mode",
"confirm_favourites",
"confirm_exit",
"mouse_threshold",
"joystick_threshold",
"window_mode",
"screen_rotation",
"anti_aliasing",
"anisotropic",
"filter_wrap_mode",
"track_usage",
"multiple_monitors",
"smooth_images",
"selection_max_step",
"selection_speed_ms",
"move_mouse_on_launch",
"scrape_snaps",
"scrape_marquees",
"scrape_flyers",
"scrape_wheels",
"scrape_fanart",
"scrape_videos",
"scrape_overview",
"thegamesdb_key",
"power_saving",
#ifdef SFML_SYSTEM_WINDOWS
"hide_console",
#endif
"video_decoder",
"menu_prompt",
"menu_layout",
"image_cache_mbytes",
NULL
};
const char *FeSettings::otherSettingStrings[] =
{
"display",
"sound",
"input_map",
"general",
"plugin",
FeLayoutInfo::indexStrings[0], // "saver_config"
FeLayoutInfo::indexStrings[1], // "layout_config"
FeLayoutInfo::indexStrings[2], // "intro_config"
FeLayoutInfo::indexStrings[3], // "menu_config"
NULL
};
int FeSettings::process_setting( const std::string &setting,
const std::string &value,
const std::string &fn )
{
if (( setting.compare( otherSettingStrings[0] ) == 0 ) // list
|| ( setting.compare( "list" ) == 0 )) // for backwards compatability. As of 1.5, "list" became "display"
{
m_displays.push_back( FeDisplayInfo( value ) );
m_current_config_object = &m_displays.back();
}
else if ( setting.compare( otherSettingStrings[1] ) == 0 ) // sound
m_current_config_object = &m_sounds;
else if ( setting.compare( otherSettingStrings[2] ) == 0 ) // input_map
m_current_config_object = &m_inputmap;
else if ( setting.compare( otherSettingStrings[3] ) == 0 ) // general
m_current_config_object = NULL;
else if ( setting.compare( otherSettingStrings[4] ) == 0 ) // plugin
{
FePlugInfo new_plug( value );
m_plugins.push_back( new_plug );
m_current_config_object = &m_plugins.back();
}
else if ( setting.compare( otherSettingStrings[5] ) == 0 ) // saver_config
m_current_config_object = &m_saver_params;
else if ( setting.compare( otherSettingStrings[6] ) == 0 ) // layout_config
{
for ( std::vector< FeLayoutInfo >::iterator itr=m_layout_params.begin();
itr != m_layout_params.end(); ++itr )
{
if ( value.compare( (*itr).get_name() ) == 0 )
{
// If a duplicate, replace existing
(*itr).clear_params();
m_current_config_object = &(*itr);
return 0;
}
}
// Add new layout info
FeLayoutInfo new_entry( value );
m_layout_params.push_back( new_entry );
m_current_config_object = &m_layout_params.back();
}
else if ( setting.compare( otherSettingStrings[7] ) == 0 ) // intro_config
m_current_config_object = &m_intro_params;
else if ( setting.compare( otherSettingStrings[8] ) == 0 ) // menu_config
m_current_config_object = &m_display_menu_per_display_params;
else
{
int i=0;
while ( configSettingStrings[i] != NULL )
{
if ( setting.compare( configSettingStrings[i] ) == 0 )
{
if ( set_info( i, value ) == false )
{
const char **valid = NULL;
switch ( i )
{
case WindowMode:
valid = windowModeTokens;
break;
case ScreenRotation:
valid = screenRotationTokens;
break;
case FilterWrapMode:
valid = filterWrapTokens;
break;
case StartupMode:
valid = startupTokens;
break;
default:
break;
}
invalid_setting( fn,
configSettingStrings[i],
value, valid, NULL, "value" );
return 1;
}
return 0;
}
i++;
}
// if we get this far, then none of the settings associated with
// this object were found, pass to the current child object
if ( m_current_config_object != NULL )
return m_current_config_object->process_setting( setting, value, fn );
else
{
// <=2.4.1 there was an "accelerate_selection" boolean that if false
// disabled the selection acceleration (the same result as setting
// selection_max_step = 0)
//
if ( setting.compare( "accelerate_selection" ) == 0 )
{
if ( config_str_to_bool( value ) )
m_selection_max_step = 128; // set to default max step
else
m_selection_max_step = 0;
return 0;
}
invalid_setting( fn,
"general", setting, otherSettingStrings, configSettingStrings );
return 1;
}
}
return 0;
}
void FeSettings::init_display()
{
m_loaded_game_extras = false;
//
// Setting new_index to negative causes us to do the 'Displays Menu' w/ custom layout
//
if ( m_current_display < 0 )
{
m_rl.init_as_empty_list();
FeRomInfoListType &l = m_rl.get_list();
construct_display_maps();
for ( unsigned int i=0; i<m_display_menu.size(); i++ )
{
FeDisplayInfo *p = &(m_displays[m_display_menu[i]]);
FeRomInfo rom( p->get_info( FeDisplayInfo::Name ) );
rom.set_info( FeRomInfo::Title, p->get_info( FeDisplayInfo::Name ) );
rom.set_info( FeRomInfo::Emulator, "@" );
l.push_back( rom );
}
if ( m_displays_menu_exit )
{
std::string exit_str;
get_exit_message( exit_str );
FeRomInfo rom( exit_str );
rom.set_info( FeRomInfo::Title, exit_str );
rom.set_info( FeRomInfo::Emulator, "@exit" );
rom.set_info( FeRomInfo::AltRomname, "exit" );
l.push_back( rom );
}
FeDisplayInfo empty( "" );
m_rl.create_filters( empty );
// we want to keep m_current_search_index through the set_search_value() call
int temp_idx = m_current_search_index;
set_search_rule( "" );
m_current_search_index = temp_idx;
// Setup m_current_layout_params with all the parameters for our current layout, including
// the 'per_display' layout parameters that are stored separately but that get merged in here
//
m_current_layout_params = get_layout_config( m_menu_layout );
m_current_layout_params.merge_params( m_display_menu_per_display_params );
return;
}
set_search_rule( "" );
const std::string &romlist_name = m_displays[m_current_display].get_info(FeDisplayInfo::Romlist);
if ( romlist_name.empty() )
{
m_rl.init_as_empty_list();
construct_display_maps();
return;
}
FeLog() << std::endl << "*** Initializing display: '" << get_current_display_title() << "'" << std::endl;
std::string list_path( m_config_path );
list_path += FE_ROMLIST_SUBDIR;
// Check for a romlist in the data path if there isn't one that matches in the
// config directory
//
if (( !file_exists( list_path + romlist_name + FE_ROMLIST_FILE_EXTENSION ) )
&& ( FE_DATA_PATH != NULL ))
{
std::string temp = FE_DATA_PATH;
temp += FE_ROMLIST_SUBDIR;
if ( file_exists( temp + romlist_name + FE_ROMLIST_FILE_EXTENSION ) )
list_path = temp;
}
if ( m_rl.load_romlist( list_path,
romlist_name,
m_displays[m_current_display],
m_group_clones,
m_track_usage ) == false )
FeLog() << "Error opening romlist: " << romlist_name << std::endl;
// Setup m_current_layout_params with all the parameters for our current layout, including
// the 'per_display' layout parameters that are stored separately but that get merged in here
//
m_current_layout_params = get_layout_config(
m_displays[ m_current_display ].get_info( FeDisplayInfo::Layout ) );
m_current_layout_params.merge_params(
m_displays[ m_current_display ].get_layout_per_display_params() );
//
// Construct our display index views here, for lack of a better spot
//
// Do this here so that index views are rebuilt on a forced reset of
// the display (which happens when settings get changed for example)
//
construct_display_maps();
m_path_cache.clear();
}
void FeSettings::construct_display_maps()
{
m_display_cycle.clear();
m_display_menu.clear();
for ( unsigned int i=0; i<m_displays.size(); i++ )
{
if ( m_displays[i].show_in_cycle() )
m_display_cycle.push_back( i );
if ( m_displays[i].show_in_menu() )
m_display_menu.push_back( i );
}
}
void FeSettings::save_state()
{
int display_idx = m_current_display;
// If we have a display stack we save the entry at the bottom of the stack as the
// 'current' display
//
if ( !m_display_stack.empty() )
display_idx = m_display_stack.front();
if ( display_idx < 0 )
display_idx = m_current_display_index;
m_rl.save_state();
std::string filename( m_config_path );
confirm_directory( m_config_path, FE_EMPTY_STRING );
filename += FE_STATE_FILE;
nowide::ofstream outfile( filename.c_str() );
if ( outfile.is_open() )
{
outfile << display_idx << ";"
<< m_last_launch_display << "," << m_last_launch_filter
<< "," << m_last_launch_rom;
if ( m_last_launch_clone >= 0 )
outfile << "," << m_last_launch_clone;
outfile << ";" << m_menu_layout_file << std::endl;
for ( std::vector<FeDisplayInfo>::const_iterator itl=m_displays.begin();
itl != m_displays.end(); ++itl )
outfile << (*itl).state_as_output() << std::endl;
outfile.close();
}
}
void FeSettings::load_state()
{
if ( m_displays.empty() )
{
m_current_display = -1;
return;
}
std::string filename( m_config_path );
filename += FE_STATE_FILE;
nowide::ifstream myfile( filename.c_str() );
std::string line;
if ( myfile.is_open() && myfile.good() )
{
getline( myfile, line );
size_t pos=0;
std::string tok;
token_helper( line, pos, tok, ";" );
m_current_display = as_int( tok );
token_helper( line, pos, tok, ";" );
int i=0;
size_t pos2=0;
while (( pos2 < tok.size() ) && ( i < 3 ))
{
std::string tok2;
token_helper( tok, pos2, tok2, "," );
int temp = as_int( tok2 );
switch (i)
{
case 0: m_last_launch_display = temp; break;
case 1: m_last_launch_filter = temp; break;
case 2: m_last_launch_rom = temp; break;
case 3: m_last_launch_clone = temp; break;
}
i++;
}
token_helper( line, pos, tok, ";" );
m_menu_layout_file = tok;
for ( std::vector<FeDisplayInfo>::iterator itl=m_displays.begin();
itl != m_displays.end(); ++itl )
{
if ( myfile.good() )
{
getline( myfile, line );
(*itl).process_state( line );
}
}
}
// bound checking on the current list state
if ( m_current_display >= (int)m_displays.size() )
m_current_display = m_displays.size() - 1;
if ( m_current_display < 0 )
m_current_display = 0;
// bound checking on the last launch state
if ( m_last_launch_display >= (int)m_displays.size() )
m_last_launch_display = m_displays.size() - 1;
if ( m_last_launch_display < 0 )
m_last_launch_display = 0;
if ( m_last_launch_filter >= m_displays[ m_last_launch_display ].get_filter_count() )
m_last_launch_filter = m_displays[ m_last_launch_display ].get_filter_count() - 1;
if ( m_last_launch_filter < 0 )
m_last_launch_filter = 0;
// confirm loaded state points to layout files that actually exist (and reset if it doesn't)
for ( std::vector<FeDisplayInfo>::iterator itr = m_displays.begin(); itr != m_displays.end(); ++itr )
{
std::string file = (*itr).get_current_layout_file();
if ( !file.empty() )
{
std::string path;
get_layout_dir( (*itr).get_info( FeDisplayInfo::Layout ), path );
std::string fn = path + file + FE_LAYOUT_FILE_EXTENSION ;
if ( !file_exists( fn ) )
{
FeDebug() << "Resetting saved layout file since the file does not actually exist. Display: "
<< (*itr).get_info( FeDisplayInfo::Name )
<< ", file: " << fn << :: std::endl;
(*itr).set_current_layout_file( "" );
}
}
}
if ( !m_menu_layout_file.empty() )
{
std::string path;
get_layout_dir( m_menu_layout, path );
std::string fn = path + m_menu_layout_file + FE_LAYOUT_FILE_EXTENSION ;
if ( !file_exists( fn ) )
{
FeDebug() << "Resetting Displays Menu layout file (file doesn't exist): " << fn << :: std::endl;
m_menu_layout_file = "";
}
}
}
FeInputMap::Command FeSettings::map_input( const sf::Event &e )
{
return m_inputmap.map_input( e, m_mousecap_rect, m_joy_thresh );
}
FeInputMap::Command FeSettings::input_conflict_check( const FeInputMapEntry &e )
{
return m_inputmap.input_conflict_check( e );
}
void FeSettings::get_input_config_metrics( sf::IntRect &mousecap_rect, int &joy_thresh )
{
mousecap_rect = m_mousecap_rect;
joy_thresh = m_joy_thresh;
}
FeInputMap::Command FeSettings::get_default_command( FeInputMap::Command c )
{
return m_inputmap.get_default_command( c );
}
void FeSettings::set_default_command( FeInputMap::Command c, FeInputMap::Command v )
{
m_inputmap.set_default_command( c, v );
}
bool FeSettings::get_current_state( FeInputMap::Command c )
{
return m_inputmap.get_current_state( c, m_joy_thresh );
}
void FeSettings::init_mouse_capture( int window_x, int window_y )
{
int radius = window_x * m_mouse_thresh / 400;
int centre_x = window_x / 2;
int centre_y = window_y / 2;
m_mousecap_rect.left = centre_x - radius;
m_mousecap_rect.top = centre_y - radius;
m_mousecap_rect.width = radius * 2;
m_mousecap_rect.height = radius * 2;
}
bool FeSettings::test_mouse_reset( int mouse_x, int mouse_y ) const
{
return (( m_inputmap.has_mouse_moves() ) && ( !m_mousecap_rect.contains( mouse_x, mouse_y ) ));
}
int FeSettings::get_filter_index_from_offset( int offset ) const
{
if ( m_current_display < 0 )
return 0;
int f_count = m_displays[m_current_display].get_filter_count();
if ( f_count == 0 )
return 0;
int off = abs( offset ) % f_count;
int retval = get_current_filter_index();
if ( offset < 0 )
retval -= off;
else
retval += off;
if ( retval < 0 )
retval += f_count;
if ( retval >= f_count )
retval -= f_count;
return retval;
}
int FeSettings::get_filter_count() const
{
if ( m_current_display < 0 )
return 1;
return m_displays[m_current_display].get_filter_count();
}
int FeSettings::get_filter_size( int filter_index ) const
{
if ( !m_current_search.empty()
&& ( get_current_filter_index() == filter_index ))
return m_current_search.size();
return m_rl.filter_size( filter_index );
}
int FeSettings::get_rom_index( int filter_index, int offset ) const
{
int retval, rl_size;
if ( m_current_display < 0 )
{
retval = m_current_display_index;
rl_size = m_rl.filter_size( filter_index );
}
else if ( !m_current_search.empty()
&& ( get_current_filter_index() == filter_index ))
{
retval = m_current_search_index;
rl_size = m_current_search.size();
}
else
{
retval = m_displays[m_current_display].get_rom_index( filter_index );
rl_size = m_rl.filter_size( filter_index );
}
// keep in bounds
if ( retval >= rl_size )
retval = rl_size - 1;
if ( retval < 0 )
retval = 0;
// apply the offset
if ( rl_size > 0 )
{
int off = abs( offset ) % rl_size;
if ( offset < 0 )
retval -= off;
else
retval += off;
if ( retval < 0 )
retval = retval + rl_size;
if ( retval >= rl_size )
retval = retval - rl_size;
}
return retval;
}
void FeSettings::set_search_rule( const std::string &rule_str )
{
FeDebug() << "set_search_rule = '" << rule_str << "'" << std::endl;
m_current_search.clear();
m_current_search_index=0;