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-rw-r--r--lib/events.rb28
-rw-r--r--lib/room-schedule.rb248
2 files changed, 276 insertions, 0 deletions
diff --git a/lib/events.rb b/lib/events.rb
new file mode 100644
index 0000000..e647930
--- /dev/null
+++ b/lib/events.rb
@@ -0,0 +1,28 @@
+require 'time'
+
+module Events
+ class Event
+
+ attr_reader :start_time
+ attr_reader :duration
+ attr_reader :title
+ attr_reader :venue
+ attr_reader :image_url
+
+ def initialize(attrs)
+ @start_time = Time.parse(attrs['start_time'])
+ @duration = attrs['duration'].to_i
+ @title = attrs['title']
+ @venue = attrs['venue']
+ @image_url = attrs['image'] unless attrs['image'].length < 10
+ end
+
+ def date
+ @start_time.to_date
+ end
+
+ def slug
+ "#{start_time.to_i}-#{title.downcase.gsub(/[^a-z0-9_-]/, '')}"
+ end
+ end
+end
diff --git a/lib/room-schedule.rb b/lib/room-schedule.rb
new file mode 100644
index 0000000..fd4e282
--- /dev/null
+++ b/lib/room-schedule.rb
@@ -0,0 +1,248 @@
+require 'date'
+require 'time'
+require 'SVG/Graph/Plot'
+
+module SVG
+ module Graph
+ class RoomSchedule < Graph
+ # In addition to the defaults set by Graph::initialize and
+ # Plot::set_defaults, sets:
+ # [x_label_format] '%Y-%m-%d %H:%M:%S'
+ # [popup_format] '%Y-%m-%d %H:%M:%S'
+ def set_defaults
+ init_with(
+ :x_label_format => '%Y-%m-%d %H:%M:%S',
+ :popup_format => '%Y-%m-%d %H:%M:%S',
+ :scale_x_divisions => false,
+ :scale_x_integers => false,
+ :bar_gap => true
+ )
+ end
+
+ # The format string use do format the X axis labels.
+ # See Time::strformat
+ attr_accessor :x_label_format
+ # Use this to set the spacing between dates on the axis. The value
+ # must be of the form
+ # "\d+ ?(days|weeks|months|years|hours|minutes|seconds)?"
+ #
+ # EG:
+ #
+ # graph.timescale_divisions = "2 weeks"
+ #
+ # will cause the chart to try to divide the X axis up into segments of
+ # two week periods.
+ attr_accessor :timescale_divisions
+ # The formatting used for the popups. See x_label_format
+ attr_accessor :popup_format
+ attr_accessor :scale_x_divisions
+ attr_accessor :scale_x_integers
+ attr_accessor :bar_gap
+
+ protected
+
+ def format x, y
+ Time.at( x ).strftime( popup_format )
+ end
+
+ def get_x_labels
+ rv = get_x_values.collect { |v| v.strftime( x_label_format ) }
+ end
+
+ def y_label_offset( height )
+ height / -2.0
+ end
+
+ def get_y_labels
+ @data.map {|room| room[:title] }
+ end
+
+ def draw_data
+ bargap = bar_gap ? (field_height < 10 ? field_height / 2 : 10) : 0
+ subbar_height = field_height - bargap
+
+ field_count = 1
+ y_mod = (subbar_height / 2) + (font_size / 2)
+ min,max,div = x_range
+ scale = (@graph_width) / (max - min).to_f
+ @data.each do |room|
+ room[:data].each do |entry|
+ x_start = (entry.start_time - min).to_f
+ x_end = (entry.end_time - min).to_f
+ y = @graph_height - (field_height * field_count)
+ bar_width = (x_end - x_start) * scale
+ bar_start = x_start * scale
+
+ event = @graph.add_element( "rect", {
+ "x" => bar_start.to_s,
+ "y" => y.to_s,
+ "width" => bar_width.to_s,
+ "height" => subbar_height.to_s,
+ "class" => "fill#{field_count+1}"
+ })
+ switch = @graph.add_element("switch")
+ fo = switch.add_element("foreignObject", {
+ "x" => (bar_start + @font_size / 2).to_s,
+ "y" => y.to_s,
+ "width" => bar_width.to_s,
+ "height" => subbar_height.to_s,
+ "requiredExtensions" => "http://www.w3.org/1999/xhtml",
+ })
+ body = fo.add_element("body", {
+ "xmlns" => "http://www.w3.org/1999/xhtml",
+ })
+ p = body.add_element("p", {
+ "class" => "event-title",
+ })
+ if entry.link
+ p = p.add_element("a", { "href" => entry.link })
+ end
+ p.add_text(entry.title)
+ t = switch.add_element("text", {
+ "x" => (bar_start + @font_size / 2).to_s,
+ "y" => (y + 2 * @font_size).to_s,
+ })
+ t.add_text(entry.title)
+ end
+ field_count += 1
+ end
+ end
+
+ def get_css
+ return <<EOL
+/* default fill styles for multiple datasets (probably only use a single dataset on this graph though) */
+.key1,.fill1{
+ fill: #ff0000;
+ fill-opacity: 0.5;
+ stroke: none;
+ stroke-width: 0.5px;
+}
+.key2,.fill2{
+ fill: #0000ff;
+ fill-opacity: 0.5;
+ stroke: none;
+ stroke-width: 1px;
+}
+.key3,.fill3{
+ fill: #00ff00;
+ fill-opacity: 0.5;
+ stroke: none;
+ stroke-width: 1px;
+}
+.key4,.fill4{
+ fill: #ffcc00;
+ fill-opacity: 0.5;
+ stroke: none;
+ stroke-width: 1px;
+}
+.key5,.fill5{
+ fill: #00ccff;
+ fill-opacity: 0.5;
+ stroke: none;
+ stroke-width: 1px;
+}
+.key6,.fill6{
+ fill: #ff00ff;
+ fill-opacity: 0.5;
+ stroke: none;
+ stroke-width: 1px;
+}
+.key7,.fill7{
+ fill: #00ffff;
+ fill-opacity: 0.5;
+ stroke: none;
+ stroke-width: 1px;
+}
+.key8,.fill8{
+ fill: #ffff00;
+ fill-opacity: 0.5;
+ stroke: none;
+ stroke-width: 1px;
+}
+.key9,.fill9{
+ fill: #cc6666;
+ fill-opacity: 0.5;
+ stroke: none;
+ stroke-width: 1px;
+}
+.key10,.fill10{
+ fill: #663399;
+ fill-opacity: 0.5;
+ stroke: none;
+ stroke-width: 1px;
+}
+.key11,.fill11{
+ fill: #339900;
+ fill-opacity: 0.5;
+ stroke: none;
+ stroke-width: 1px;
+}
+.key12,.fill12{
+ fill: #9966FF;
+ fill-opacity: 0.5;
+ stroke: none;
+ stroke-width: 1px;
+}
+.event-title {
+ font-size: 80%;
+}
+EOL
+ end
+
+ private
+
+ def timescale_unit
+ if timescale_divisions
+ timescale_divisions =~ /(\d+) ?(days|weeks|hours|minutes|seconds)?/
+ division_units = $2 ? $2 : "days"
+ amount = $1.to_i
+ unit = nil
+ case division_units
+ when "weeks"
+ unit = 7
+ when "days"
+ unit = 1
+ when "hours"
+ unit = (1.0 / 24)
+ when "minutes"
+ unit = (1.0 / 1440)
+ when "seconds"
+ unit = (1.0 / 86400)
+ end
+ end
+ [ amount, unit ]
+ end
+
+ def x_range
+ max_value = @data.map {|room| room[:data].map {|e| e.end_time}.max}.max
+ min_value = @data.map {|room| room[:data].map {|e| e.start_time}.min}.min
+
+ amount, unit = timescale_unit
+ max_value += unit * (amount - (max_value.min % amount))
+ range = max_value - min_value
+ right_pad = 0 #range == 0 ? 10 : range / 20.0
+ scale_range = (max_value + right_pad) - min_value
+
+ scale_division = scale_x_divisions || (scale_range / 10.0)
+
+ if scale_x_integers
+ scale_division = scale_division < 1 ? 1 : scale_division.round
+ end
+
+ [min_value, max_value, scale_division]
+ end
+
+ def get_x_values
+ rv = []
+ min, max, scale_division = x_range
+ if timescale_divisions
+ amount, unit = timescale_unit
+ min.step( max, amount * unit) {|v| rv << v} if amount
+ return rv
+ end
+ min.step(max, scale_division) {|v| rv << v}
+ return rv
+ end
+ end
+ end
+end