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fe_present.cpp
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fe_present.cpp
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/*
*
* Attract-Mode frontend
* Copyright (C) 2013-15 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_present.hpp"
#include "fe_util.hpp"
#include "fe_image.hpp"
#include "fe_text.hpp"
#include "fe_listbox.hpp"
#include "fe_rectangle.hpp"
#include "fe_input.hpp"
#include "fe_file.hpp"
#include "fe_blend.hpp"
#include "zip.hpp"
#include "base64.hpp"
#include "BarlowCJK.ttf.h"
#include <iostream>
#include <cmath>
#include <limits>
#include <cstring>
#include <SFML/Audio.hpp>
#ifdef USE_XLIB
#include <X11/extensions/Xrandr.h>
#endif
#ifdef USE_XINERAMA
#include <X11/extensions/Xinerama.h>
#endif
#ifdef USE_DRM
#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
#endif
#ifdef SFML_SYSTEM_MACOS
#include <CoreVideo/CoreVideo.h>
#endif
#ifdef SFML_SYSTEM_WINDOWS
#include <windows.h>
BOOL CALLBACK my_mon_enum_proc( HMONITOR, HDC, LPRECT mon_rect, LPARAM data )
{
std::vector < FeMonitor > *monitors = (std::vector < FeMonitor > *)data;
FeMonitor mon(
monitors->size(),
mon_rect->right - mon_rect->left,
mon_rect->bottom - mon_rect->top );
mon.transform = sf::Transform().translate( mon_rect->left, mon_rect->top );
FeDebug() << "Multimon: monitor #" << monitors->size()
<< ": " << mon.size.x << "x" << mon.size.y << " @ "
<< mon_rect->left << "," << mon_rect->top << std::endl;
// make sure primary monitor is first in m_mon vector
//
if (( mon_rect->left == 0 ) && ( mon_rect->top == 0 ))
monitors->insert( monitors->begin(), mon );
else
monitors->push_back( mon );
return TRUE;
}
#endif
FeFontContainer::FeFontContainer()
: m_needs_reload( false )
{
}
FeFontContainer::~FeFontContainer()
{
}
void FeFontContainer::set_font( const std::string &n )
{
m_name = n;
if ( !m_font.loadFromFile( n ) )
FeLog() << "Error loading font from file: " << n << std::endl;
}
void FeFontContainer::load_default_font()
{
m_font_binary_data = base64_decode( _binary_resources_fonts_BarlowCJK_ttf );
m_font.loadFromMemory( m_font_binary_data.data(), m_font_binary_data.size() );
}
const sf::Font &FeFontContainer::get_font() const
{
return m_font;
}
void FeFontContainer::clear_font()
{
m_font = sf::Font();
m_needs_reload = true;
}
FeMonitor::FeMonitor( int n, int w, int h )
: num( n )
{
size.x = w;
size.y = h;
}
FeMonitor::FeMonitor( const FeMonitor &o )
: FePresentableParent( o ),
transform( o.transform ),
size( o.size ),
num( o.num )
{
}
FeMonitor &FeMonitor::operator=( const FeMonitor &o )
{
elements = o.elements;
transform = o.transform;
size = o.size;
num = o.num;
return *this;
}
int FeMonitor::get_width()
{
return size.x;
}
int FeMonitor::get_height()
{
return size.y;
}
int FeMonitor::get_num()
{
return num;
}
FePresent::FePresent( FeSettings *fesettings, FeWindow &wnd )
: m_feSettings( fesettings ),
m_window( wnd ),
m_layoutFont( NULL ),
m_defaultFont( NULL ),
m_baseRotation( FeSettings::RotateNone ),
m_toggleRotation( FeSettings::RotateNone ),
m_refresh_rate( 0 ),
m_playMovies( true ),
m_user_page_size( -1 ),
m_preserve_aspect( false ),
m_custom_overlay( false ),
m_listBox( NULL ),
m_emptyShader( NULL ),
m_overlay_caption( NULL ),
m_overlay_lb( NULL ),
m_layout_loaded( false )
{
m_baseRotation = m_feSettings->get_screen_rotation();
m_layoutFontName = "";
init_monitors();
}
void FePresent::init_monitors()
{
m_mon.clear();
//
// Handle multi-monitors
//
// We support multi-monitor setups on MS-Windows when in fullscreen or "fillscreen" mode
// We also determine display's refresh rate here
//
#if defined(SFML_SYSTEM_MACOS)
CGDirectDisplayID display_id = CGMainDisplayID();
CGDisplayModeRef display_mode = CGDisplayCopyDisplayMode( display_id );
size_t refresh_rate = CGDisplayModeGetRefreshRate( display_mode );
if ( refresh_rate == 0 )
{
CVDisplayLinkRef display_link;
CVDisplayLinkCreateWithCGDisplay( display_id, &display_link );
const CVTime time = CVDisplayLinkGetNominalOutputVideoRefreshPeriod( display_link );
if ( !( time.flags & kCVTimeIsIndefinite ))
m_refresh_rate = (int)( (float)time.timeScale / (float)time.timeValue + 0.5f );
}
else
m_refresh_rate = refresh_rate;
#endif
#if defined(USE_DRM)
#define MAX_DRM_DEVICES 64
drmDevicePtr devices[MAX_DRM_DEVICES] = { NULL };
int num_devices, fd = -1;
num_devices = drmGetDevices2( 0, devices, MAX_DRM_DEVICES );
for ( int i = 0; i < num_devices; i++ )
{
drmDevicePtr device = devices[i];
int ret;
if ( !( device->available_nodes & ( 1 << DRM_NODE_PRIMARY )))
continue;
int drm_fd = open( device->nodes[DRM_NODE_PRIMARY], O_RDWR | O_CLOEXEC );
drmModeRes *p_res = drmModeGetResources( drm_fd );
if ( p_res )
for ( int j = 0; j < p_res->count_connectors; j++ )
{
drmModeConnector *p_connector = drmModeGetConnector( drm_fd, p_res->connectors[j] );
drmModeEncoder *encoder;
drmModeCrtc *crtc;
encoder = drmModeGetEncoder( drm_fd, p_connector->encoder_id );
drmModeModeInfo mode_info;
memset( &mode_info, 0, sizeof( drmModeModeInfo ));
if ( encoder != NULL )
{
crtc = drmModeGetCrtc( drm_fd, encoder->crtc_id );
drmModeFreeEncoder( encoder );
if ( crtc != NULL )
{
if ( crtc->mode_valid )
m_refresh_rate = crtc->mode.vrefresh;
drmModeFreeCrtc( crtc );
}
}
}
close( drm_fd );
}
drmFreeDevices( devices, num_devices );
#endif
#if defined(SFML_SYSTEM_WINDOWS)
DEVMODE devMode;
memset( &devMode, 0, sizeof(DEVMODE) );
devMode.dmSize = sizeof(DEVMODE);
devMode.dmDriverExtra = 0;
if ( EnumDisplaySettings( NULL, ENUM_CURRENT_SETTINGS, &devMode ) != 0 )
m_refresh_rate = devMode.dmDisplayFrequency;
if ( m_feSettings->get_info_bool( FeSettings::MultiMon )
&& !is_windowed_mode( m_feSettings->get_window_mode() ) )
{
EnumDisplayMonitors( NULL, NULL, my_mon_enum_proc, (LPARAM)&m_mon );
//
// The Windows virtual screen can have a negative valued top left corner, whereas in SFML we
// always have a 0,0 top left. So we correct the transforms in m_mon to SFML's coordinates now.
//
int translate_x = -GetSystemMetrics( SM_XVIRTUALSCREEN );
int translate_y = -GetSystemMetrics( SM_YVIRTUALSCREEN );
//
// On Windows 'Fill screen' mode our window is offscreen 1 pixel in each direction, so correct
// for that here to align draw area with screen
//
if ( m_feSettings->get_window_mode() == FeSettings::Default )
{
translate_x += 1;
translate_y += 1;
}
sf::Transform correction = sf::Transform().translate( translate_x, translate_y );
for ( std::vector<FeMonitor>::iterator itr=m_mon.begin(); itr!=m_mon.end(); ++itr )
(*itr).transform *= correction;
}
else
#elif defined(USE_XLIB)
Display *xdisp = XOpenDisplay( NULL );
if ( !xdisp )
{
FeLog() << "Unable to open x display" << std::endl;
}
else
{
Window root = RootWindow( xdisp, 0 );
XRRScreenConfiguration *xconf = XRRGetScreenInfo( xdisp, root );
m_refresh_rate = XRRConfigCurrentRate( xconf );
XRRFreeScreenConfigInfo( xconf );
}
#if !defined(USE_XINERAMA)
XCloseDisplay( xdisp );
#else
bool set_first=true;
if ( xdisp && ( m_feSettings->get_info_bool( FeSettings::MultiMon ) )
&& !is_windowed_mode( m_feSettings->get_window_mode() ) )
{
int num = 0;
XineramaScreenInfo *si = XineramaQueryScreens( xdisp, &num );
if ( !si )
{
FeLog() << "Unable to query Xinerama screens" << std::endl;
set_first=true;
}
else
{
for ( int i=0; i<num; i++ )
{
FeMonitor mon(
si[i].screen_number,
si[i].width,
si[i].height );
mon.transform = sf::Transform().translate(
si[i].x_org,
si[i].y_org );
FeDebug() << "Multimon: monitor #" << si[i].screen_number
<< ": " << mon.size.x << "x" << mon.size.y << " @ "
<< si[i].x_org << "," << si[i].y_org << std::endl;
m_mon.push_back( mon );
}
set_first=false;
XFree( si );
}
}
if ( xdisp )
XCloseDisplay( xdisp );
if ( set_first )
#endif
#endif
{
FeMonitor mc( 0, m_window.get_win().getSize().x, m_window.get_win().getSize().y );
#ifdef SFML_SYSTEM_WINDOWS
//
// On Windows 'Fill screen' mode our window is offscreen 1 pixel in each direction, so correct
// for that here to align draw area with screen.
//
if ( m_feSettings->get_window_mode() == FeSettings::Default )
{
mc.size.x -= 2;
mc.size.y -= 2;
mc.transform = sf::Transform().translate( 1, 1 );
}
#endif
m_mon.push_back( mc );
}
ASSERT( m_mon.size() > 0 );
m_layoutSize = m_mon[0].size;
if ( m_refresh_rate == 0 )
{
FeLog() << "Failed to detect the refresh rate. Defaulting to 60 Hz" << std::endl;
m_refresh_rate = 60;
}
else
FeDebug() << "Monitor's Refresh Rate: " << m_refresh_rate << " Hz" << std::endl;
}
FePresent::~FePresent()
{
clear();
}
void FePresent::clear()
{
//
// keep toggle rotation, base rotation and mute state through clear
//
// Activating the screen saver keeps the previous base rotation, while
// mute and toggle rotation are kept whenever the layout is changed
//
m_listBox=NULL; // listbox gets deleted with the m_mon.elements below
m_layout_transform = sf::Transform();
m_ui_transform = sf::Transform();
m_layoutFont = NULL;
m_layoutFontName = "";
m_user_page_size = -1;
m_preserve_aspect = false;
m_custom_overlay = false;
m_overlay_caption = NULL;
m_overlay_lb = NULL;
for ( std::vector<FeMonitor>::iterator itr=m_mon.begin(); itr!=m_mon.end(); ++itr )
{
while ( !(*itr).elements.empty() )
{
FeBasePresentable *p = (*itr).elements.back();
(*itr).elements.pop_back();
delete p;
}
}
while ( !m_texturePool.empty() )
{
FeBaseTextureContainer *t = m_texturePool.back();
m_texturePool.pop_back();
delete t;
}
while ( !m_sounds.empty() )
{
FeSound *s = m_sounds.back();
m_sounds.pop_back();
//s->set_playing( false );
delete s;
}
while ( !m_musics.empty() )
{
FeMusic *a = m_musics.back();
m_musics.pop_back();
delete a;
}
while ( !m_scriptShaders.empty() )
{
FeShader *sh = m_scriptShaders.back();
m_scriptShaders.pop_back();
delete sh;
}
if ( m_emptyShader )
{
delete m_emptyShader;
m_emptyShader = NULL;
}
while ( !m_fontPool.empty() )
{
FeFontContainer *f = m_fontPool.back();
m_fontPool.pop_back();
delete f;
}
m_baseRotation = m_feSettings->get_screen_rotation();
FeSettings::RotationState actualRotation = get_actual_rotation();
if (( actualRotation == FeSettings::RotateLeft ) || ( actualRotation == FeSettings::RotateRight ))
{
m_layoutSize.x = m_mon[0].size.y;
m_layoutSize.y = m_mon[0].size.x;
}
else
{
m_layoutSize.x = m_mon[0].size.x;
m_layoutSize.y = m_mon[0].size.y;
}
m_layoutScale.x = 1.0;
m_layoutScale.y = 1.0;
FeBlend::clear_default_shaders();
delete m_defaultFont;
m_defaultFont = NULL;
m_layoutFont = NULL;
}
namespace
{
bool zcompare( FeBasePresentable *one, FeBasePresentable *two )
{
return ( one->get_zorder() < two->get_zorder() );
}
};
void FePresent::sort_zorder()
{
std::vector<FeBaseTextureContainer *>::iterator itc;
std::vector<FeMonitor>::iterator itm;
for ( itc=m_texturePool.begin(); itc != m_texturePool.end(); ++itc )
if ( (*itc)->get_presentable_parent() )
std::stable_sort( (*itc)->get_presentable_parent()->elements.begin(), (*itc)->get_presentable_parent()->elements.end(), zcompare );
for ( itm=m_mon.begin(); itm != m_mon.end(); ++itm )
std::stable_sort( (*itm).elements.begin(), (*itm).elements.end(), zcompare );
}
void FePresent::draw( sf::RenderTarget& target, sf::RenderStates states ) const
{
std::vector<FeBasePresentable *>::const_iterator itl;
//
for ( unsigned int i=0; i<m_mon.size(); i++ )
{
// use m_transform on monitor 0
states.transform = i ? m_mon[i].transform : m_layout_transform;
for ( itl=m_mon[i].elements.begin(); itl != m_mon[i].elements.end(); ++itl )
{
if ( (*itl)->get_visible() )
target.draw( (*itl)->drawable(), states );
}
}
}
FeImage *FePresent::add_image( bool is_artwork,
const std::string &n,
float x,
float y,
float w,
float h,
FePresentableParent &p )
{
FeTextureContainer *new_tex = new FeTextureContainer( is_artwork, n );
new_tex->set_smooth( m_feSettings->get_info_bool( FeSettings::SmoothImages ) );
FeImage *new_image = new FeImage( p, new_tex, x, y, w, h );
new_image->set_scale_factor( m_layoutScale.x, m_layoutScale.y );
// if this is a static image/video then load it now
//
if (( !is_artwork ) && ( n.find_first_of( "[" ) == std::string::npos ))
new_image->setFileName( n.c_str() );
flag_redraw();
m_texturePool.push_back( new_tex );
p.elements.push_back( new_image );
return new_image;
}
FeImage *FePresent::add_clone( FeImage *o,
FePresentableParent &p )
{
FeImage *new_image = new FeImage( o );
flag_redraw();
p.elements.push_back( new_image );
if ( o->get_presentable_parent() != NULL )
o->get_presentable_parent()->set_nesting_level( p.get_nesting_level() + 1 );
return new_image;
}
FeText *FePresent::add_text( const std::string &n, int x, int y, int w, int h,
FePresentableParent &p )
{
FeText *new_text = new FeText( p, n, x, y, w, h );
new_text->setFont( *get_layout_font() );
new_text->set_scale_factor( m_layoutScale.x, m_layoutScale.y );
flag_redraw();
p.elements.push_back( new_text );
return new_text;
}
FeListBox *FePresent::add_listbox( int x, int y, int w, int h,
FePresentableParent &p )
{
FeListBox *new_lb = new FeListBox( p, x, y, w, h );
new_lb->setFont( *get_layout_font() );
new_lb->set_scale_factor( m_layoutScale.x, m_layoutScale.y );
flag_redraw();
m_listBox = new_lb;
p.elements.push_back( new_lb );
return new_lb;
}
FeRectangle *FePresent::add_rectangle( float x, float y, float w, float h,
FePresentableParent &p )
{
FeRectangle *new_rc = new FeRectangle( p, x, y, w, h );
new_rc->set_scale_factor( m_layoutScale.x, m_layoutScale.y );
flag_redraw();
p.elements.push_back( new_rc );
return new_rc;
}
FeImage *FePresent::add_surface( int w, int h, FePresentableParent &p )
{
FeSurfaceTextureContainer *new_surface = new FeSurfaceTextureContainer( w, h );
new_surface->set_smooth( m_feSettings->get_info_bool( FeSettings::SmoothImages ) );
new_surface->set_nesting_level( p.get_nesting_level() + 1 );
//
// Set the default sprite size to the same as the texture itself
//
FeImage *new_image = new FeImage( p, new_surface, 0, 0, w, h );
new_image->set_scale_factor( m_layoutScale.x, m_layoutScale.y );
new_image->set_blend_mode( FeBlend::Premultiplied );
new_image->texture_changed();
flag_redraw();
p.elements.push_back( new_image );
m_texturePool.push_back( new_surface );
return new_image;
}
FeSound *FePresent::add_sound( const char *n )
{
std::string path;
std::string name=n;
if ( !name.empty() )
{
if ( is_relative_path( name ) )
{
int script_id = get_script_id();
if ( script_id < 0 )
m_feSettings->get_path( FeSettings::Current, path );
else
m_feSettings->get_plugin_full_path( script_id, path );
}
}
FeSound *new_sound = new FeSound();
if ( !name.empty() )
new_sound->load( path + name );
new_sound->set_volume(
m_feSettings->get_play_volume( FeSoundInfo::Sound ) );
m_sounds.push_back( new_sound );
return new_sound;
}
FeMusic *FePresent::add_music( const char *n )
{
std::string path;
std::string name=n;
if ( !name.empty() )
{
if ( is_relative_path( name ) )
{
int script_id = get_script_id();
if ( script_id < 0 )
m_feSettings->get_path( FeSettings::Current, path );
else
m_feSettings->get_plugin_full_path( script_id, path );
}
}
FeMusic *new_music = new FeMusic();
if ( !name.empty() )
new_music->load( path + name );
new_music->set_volume(
m_feSettings->get_play_volume( FeSoundInfo::Sound ) );
m_musics.push_back( new_music );
return new_music;
}
FeShader *FePresent::add_shader( FeShader::Type type, const char *shader1, const char *shader2 )
{
std::string path1;
std::string path2;
m_feSettings->get_path( FeSettings::Current, path1 );
std::string s1;
std::string s2;
if ( shader1 )
s1 = clean_path( shader1 );
m_scriptShaders.push_back( new FeShader() );
FeShader *sh = m_scriptShaders.back();
if ( !is_relative_path( s1 ) )
path1.clear();
switch ( type )
{
case FeShader::VertexAndFragment:
path2 = path1;
if ( shader2 )
s2 = clean_path( shader2 );
if ( !is_relative_path( s2 ) )
path2.clear();
sh->load( path1 + s1, path2 + s2 );
break;
case FeShader::Vertex:
case FeShader::Fragment:
sh->load( path1 + s1, type );
break;
case FeShader::Empty:
default:
break;
}
return sh;
}
float FePresent::get_layout_width() const
{
return (float)m_layoutSize.x;
}
float FePresent::get_layout_height() const
{
return (float)m_layoutSize.y;
}
float FePresent::get_layout_scale_x() const
{
return m_layoutScale.x;
}
float FePresent::get_layout_scale_y() const
{
return m_layoutScale.y;
}
void FePresent::set_layout_width( float w )
{
if ( w != m_layoutSize.x )
{
m_layoutSize.x = w;
set_transforms();
flag_redraw();
}
}
void FePresent::set_layout_height( float h )
{
if ( h != m_layoutSize.y )
{
m_layoutSize.y = h;
set_transforms();
flag_redraw();
}
}
const FeFontContainer *FePresent::get_pooled_font( const std::string &n )
{
std::vector<std::string> my_list;
my_list.push_back( n );
return get_pooled_font( my_list );
}
const FeFontContainer *FePresent::get_pooled_font(
const std::vector < std::string > &l )
{
std::string ffile;
// search list for a font
for ( std::vector<std::string>::const_iterator itr=l.begin();
itr != l.end(); ++itr )
{
if ( m_feSettings->get_font_file( ffile, *itr ) )
break;
}
if ( ffile.empty() )
return get_default_font_container();
// Next check if this font is already loaded in our pool
//
for ( std::vector<FeFontContainer *>::iterator itr=m_fontPool.begin();
itr != m_fontPool.end(); ++itr )
{
if ( ffile.compare( (*itr)->get_name() ) == 0 )
return *itr;
}
// No match, so load this font and add it to the pool
//
m_fontPool.push_back( new FeFontContainer() );
m_fontPool.back()->set_font( ffile );
return m_fontPool.back();
}
void FePresent::set_layout_font_name( const char *n )
{
const FeFontContainer *font = get_pooled_font( n );
if ( font )
{
m_layoutFontName = n;
m_layoutFont = font;
flag_redraw();
}
}
const char *FePresent::get_layout_font_name() const
{
return m_layoutFontName.c_str();
}
void FePresent::set_base_rotation( int r )
{
FeLog() << "! NOTE: Setting base_rotation is deprecated. Use toggle_rotation or Screen Rotation in General Settings." << std::endl;
}
int FePresent::get_base_rotation() const
{
return m_baseRotation;
}
void FePresent::set_toggle_rotation( int r )
{
if ( r != m_toggleRotation )
{
m_toggleRotation = (FeSettings::RotationState)r;
set_transforms();
flag_redraw();
}
}
int FePresent::get_toggle_rotation() const
{
return m_toggleRotation;
}
const char *FePresent::get_display_name() const
{
return m_feSettings->get_current_display_title().c_str();
}
int FePresent::get_display_index() const
{
return m_feSettings->get_current_display_index();
}
const char *FePresent::get_filter_name() const
{
return m_feSettings->get_filter_name( m_feSettings->get_current_filter_index() ).c_str();
}
int FePresent::get_filter_index() const
{
return m_feSettings->get_current_filter_index();
}
void FePresent::set_filter_index( int idx )
{
int new_offset = idx - get_filter_index();
if ( new_offset != 0 )
{
if ( m_feSettings->navigate_filter( new_offset ) )
load_layout();
else
update_to_new_list( new_offset );
}
}
int FePresent::get_current_filter_size() const
{
return m_feSettings->get_filter_size( m_feSettings->get_current_filter_index() );
}
bool FePresent::get_clones_list_showing() const
{
if ( m_feSettings->get_clone_index() > 0 )
return true;
else
return false;
}
int FePresent::get_selection_index() const
{
return m_feSettings->get_rom_index( m_feSettings->get_current_filter_index(), 0 );
}
int FePresent::get_sort_by() const
{
FeRomInfo::Index idx;
bool rev;
int limit;
m_feSettings->get_current_sort( idx, rev, limit );
return idx;
}
bool FePresent::get_reverse_order() const
{
FeRomInfo::Index idx;
bool rev;
int limit;
m_feSettings->get_current_sort( idx, rev, limit );
return rev;
}
int FePresent::get_list_limit() const
{
FeRomInfo::Index idx;
bool rev;
int limit;
m_feSettings->get_current_sort( idx, rev, limit );
return limit;
}
void FePresent::set_selection_index( int index )
{
int new_offset = index - get_selection_index();
if ( new_offset != 0 )
change_selection( new_offset );
}
void FePresent::change_selection( int step, bool end_navigation )
{
on_transition( ToNewSelection, step );
m_feSettings->step_current_selection( step );
update( false );
on_transition( FromOldSelection, -step );
if ( end_navigation )
on_end_navigation();
}
bool FePresent::reset_screen_saver()
{
if ( m_feSettings->get_present_state() == FeSettings::ScreenSaver_Showing )
{
// Reset from screen saver
//
load_layout();
return true;
}
m_lastInput=m_layoutTimer.getElapsedTime();
return false;
}
// First press, repeat in main
bool FePresent::handle_event( FeInputMap::Command c )
{
if ( reset_screen_saver() )
return true;
switch( c )
{
case FeInputMap::NextGame:
change_selection( 1, false );
break;
case FeInputMap::PrevGame:
change_selection( -1, false );
break;
case FeInputMap::NextPage:
change_selection( get_page_size(), false );
break;
case FeInputMap::PrevPage:
change_selection( -get_page_size(), false );
break;
case FeInputMap::RandomGame:
{
int ls = m_feSettings->get_filter_size( m_feSettings->get_current_filter_index() );
if ( ls > 0 )
{
int step = rand() % ls;
if ( step != 0 )
change_selection( step );
}
}