From 49661f954b310825578f719562ace9f89527d3c1 Mon Sep 17 00:00:00 2001
From: Andrew Ruthven <puck@catalyst.net.nz>
Date: Mon, 22 Sep 2008 20:51:46 +1200
Subject: [PATCH] Add a config file and start to use it.

---
 Display.yml                  |  9 +++++++++
 lib/Display/Config.pm        | 33 +++++++++++++++++++++++++++++++++
 lib/Display/Plugin.pm        |  3 ++-
 lib/Display/Plugins/FSpot.pm |  4 ++--
 picture.pl                   | 31 +++++++++++++++++++++++--------
 5 files changed, 69 insertions(+), 11 deletions(-)
 create mode 100644 Display.yml
 create mode 100644 lib/Display/Config.pm

diff --git a/Display.yml b/Display.yml
new file mode 100644
index 0000000..62e3513
--- /dev/null
+++ b/Display.yml
@@ -0,0 +1,9 @@
+background: FSpot
+enabled:
+ - FSpot
+ - Clock
+ - MPD
+plugins:
+  FSpot:
+    DB: /home/andrew/.gnome2/f-spot/photos.db
+    Tags: Brooke
diff --git a/lib/Display/Config.pm b/lib/Display/Config.pm
new file mode 100644
index 0000000..ca43adc
--- /dev/null
+++ b/lib/Display/Config.pm
@@ -0,0 +1,33 @@
+package Display::Config;
+
+use Carp;
+use Config::Auto qw/find_file/;
+use FindBin qw/$Bin/;
+use YAML::Syck;
+
+use constant config_file => "Display.yml";
+
+sub new {
+  my $proto = shift;
+  my $class = ref($proto) || $proto;
+
+  my $self = {};
+
+  my $config = Config::Auto::find_file(config_file(), "$Bin/../etc");
+  if (! config || $config eq "") {
+    croak "Failed to find a config file.  Looking for ". config_file() . ".";
+  }
+
+  warn "Loading $config\n";
+  my $conf = eval { LoadFile $config };
+  if ($@) {
+    croak "Failed to load config file: $config, error: $@";
+  }
+
+  $self->{_config} = $conf;
+
+  bless ($self, $class);
+  return $self;
+}
+
+1;
diff --git a/lib/Display/Plugin.pm b/lib/Display/Plugin.pm
index b8e9540..0405ca4 100644
--- a/lib/Display/Plugin.pm
+++ b/lib/Display/Plugin.pm
@@ -4,12 +4,13 @@ package Display::Plugin;
 use Clutter;
 
 sub new {
-  my ($class,$kernel,$session,$stage,$notifications) = @_;
+  my ($class,$kernel,$session,$stage,$config,$notifications) = @_;
 
   my $self = {
     'kernel' => $kernel,
     'session' => $session,
     'stage' => $stage,
+    'config' => $config,
     'notifications' => $notifications,
   };
 
diff --git a/lib/Display/Plugins/FSpot.pm b/lib/Display/Plugins/FSpot.pm
index 2c7b96d..50b5cb9 100644
--- a/lib/Display/Plugins/FSpot.pm
+++ b/lib/Display/Plugins/FSpot.pm
@@ -5,7 +5,7 @@ use Clutter;
 use POE;
 use POE::Component::EasyDBI;
 
-my $f_spot_db = "/home/andrew/.gnome2/f-spot/photos.db";
+my $default_f_spot_db = "$ENV{HOME}/.gnome2/f-spot/photos.db";
 
 sub new {
   my $proto = shift;
@@ -74,7 +74,7 @@ sub init {
 
   POE::Component::EasyDBI->spawn(
     alias => 'FSpotDB',
-    dsn   => "dbi:SQLite:dbname=$f_spot_db",
+    dsn   => "dbi:SQLite:dbname=" . ($self->{'config'}{'_config'}{'plugings'}{'DB'} || $default_f_spot_db),
     username => '',
     password => '',
   );
diff --git a/picture.pl b/picture.pl
index e3e1402..4963e8f 100755
--- a/picture.pl
+++ b/picture.pl
@@ -10,6 +10,7 @@ use Getopt::Long;
 
 use lib "$FindBin::Bin/lib";
 
+use Display::Config;
 use Display::Notifications;
 
 my $full_screen = 1;
@@ -41,29 +42,43 @@ sub start {
     $stage->set_size(800, 600);
   }
 
+  my $config = Display::Config->new();
   my $notifications = Display::Notifications->new($kernel, $session, $stage);
 
-  my @modules = loadModules($kernel, $session, $stage, $notifications);
+  my @modules = loadModules($kernel, $session, $stage, $config, $notifications);
 
   $stage->show_all();
 }
 
 
+my @modules;
 sub loadModules {
-  my ($kernel, $session, $stage, $notifications) = @_;
-  my @modules;
+  my ($kernel, $session, $stage, $config, $notifications) = @_;
 
-  for my $module (plugins()) {
-  warn "Considering $module\n";
+  my @plugins = plugins();
+  if (defined $config->{_config}{'background'}) {
+    warn "background module is set\n";
+    warn "Considering background: " . join(", ", grep /$config->{_config}{'background'}/, @plugins) . "\n";
+    load_plugin($kernel, $session, $stage, $config, $notifications, grep /$config->{_config}{'background'}/, @plugins );
+  }
+
+  for my $module (@{ $config->{_config}{'enabled'} }) {
+    warn "Considering $module: " . join(", ", grep /$module/, @plugins) . "\n";
+    load_plugin($kernel, $session, $stage, $config, $notifications, grep /$module/, @plugins);
+  }
+}
+
+sub load_plugin {
+  my ($kernel, $session, $stage, $config, $notifications, @plugin) = @_;
+
+  for my $module (@plugin) {
     eval "use $module";
     if ($@) {
       warn "Failed to load plugin: $module ($@)\n";
     } else {
-      push @modules, $module->new($kernel, $session, $stage, $notifications);
+      push @modules, $module->new($kernel, $session, $stage, $config, $notifications);
     }
   }
-
-  return @modules;
 } 
 
 sub linear {
-- 
2.30.2