Implement the views we want to display to the user.

The Folder_view is a list of all the folders of the mailbox.

Label_view is a list of all the labels of the mailbox.

The Mail_view displays the mail itself.

Author: expez

lib/views/folder_view.rb

@@ -0,0 +1,22 @@
+class Folder_view < View
+
+  def initialize location
+    super
+  end
+
+  def draw
+    draw_folders
+    draw_horizontal_line @end_y
+  end
+
+  private
+
+  def draw_folders
+    x = @start_x
+    y = @start_y
+    y = draw_text("Folders:", x, y)
+    @mailbox.folders.each do |folder|
+      y = draw_text folder, x, y + 1
+    end
+  end
+end

lib/views/label_view.rb

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+class Label_view < View
+
+  def initialize location
+    super
+  end
+
+  def draw
+    draw_labels
+  end
+
+  private
+
+  def draw_labels
+    x = @start_x
+    y = @start_y
+    y = draw_text("Labels:", x, y)
+    @mailbox.labels.each do |label|
+      y = draw_text label, x, y + 1
+    end
+  end
+end

lib/views/mail_view.rb

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+require 'views/view'
+
+class Mail_view < View
+  require 'termbox'
+
+  def initialize location
+    super
+    @mail = @mailbox.most_recent
+  end
+
+  def draw
+    draw_borders
+    draw_mail
+  end
+
+  private
+
+  def draw_borders
+    draw_horizontal_line @start_y
+    draw_horizontal_line @end_y
+    draw_vertical_line @start_x
+    draw_vertical_line @end_x
+  end
+
+  def draw_mail
+    from = @mail.sender
+    subject = @mail.subject
+    text = @mail.body.decoded
+    x = @start_x + @Border_width + 1
+    y = @start_y + @Border_width + 1
+
+    y = draw_text(("From: " + from), x, y) + 1
+    y = draw_text(("Subject: " + subject), x, y + 1) + 1
+    draw_text text, x, y + 1
+  end
+
+end

lib/views/view.rb

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+class View
+  require 'configuration'
+  require 'termbox'
+
+  attr_reader :colors, :mailbox
+
+  def initialize location
+    @Border_width = 1
+    @start_x = location[:x0]
+    @start_y = location[:y0]
+    @end_x = location[:x1]
+    @end_y = location[:y1]
+    set_mailbox
+    set_colors
+  end
+
+  def draw_text text, x, y
+    words = text.split(/\s+/)
+    words.each do |word|
+      if x + word.length + 1 >= @end_x
+        y += 1
+        x = @start_x + @Border_width + 1
+        redo
+      elsif y >= @end_y
+        return y
+      end
+      word.each_char do |c|
+        Termbox.tb_change_cell(x, y, c.ord, @colors[:bg], @colors[:fg])
+        x += 1
+      end
+      Termbox.tb_change_cell(x, y, " ".ord, @colors[:bg], @colors[:fg])
+      x += 1
+    end
+    return y
+  end
+
+  def draw_horizontal_line at
+    @start_x.upto(@end_x) do |x|
+      Termbox.tb_change_cell(x, at, " ".ord, @colors[:bg], @colors[:fg])
+    end
+  end
+
+  def draw_vertical_line at
+    @start_y.upto(@end_y) do |y|
+      Termbox.tb_change_cell(at, y, " ".ord, @colors[:bg], @colors[:fg])
+    end
+  end
+
+  private
+
+  # Reads the maildir format from config file.  Requires the class and sets
+  # @mailbox to mailbox/<maildir-format>_mailbox
+  def set_mailbox
+    config = Configuration.instance
+    maildir_format = config.maildir_format
+    mailbox_class = maildir_format.capitalize + "_mailbox"
+    class_dir = File.expand_path('../../', __FILE__) + "/mailbox"
+    mailbox_file = File.join class_dir, mailbox_class.downcase
+    require mailbox_file
+    maildir_path = config.maildir
+    @mailbox = self.class.const_get(mailbox_class).new maildir_path
+  end
+
+  def set_colors
+    colors = Configuration.instance.colors
+    prefix = 'Termbox::Colors[:'
+    suffix = ']'
+    fg = prefix + colors.foreground + suffix
+    bg = prefix + colors.background + suffix
+    @colors = {fg: (eval fg), bg: (eval bg)}
+  end
+
+end

spec/views/view_spec.rb

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+require 'spec_helper'
+require 'termbox'
+
+describe View do
+
+  let(:config) {Configuration.instance}
+
+  subject(:view) { View.new({x0: 1, x1: 1, y0: 1, y1: 1}) }
+
+  it "instantiates the correct mailbox by reading the config file" do
+    maildir_format = config.maildir_format
+    view.mailbox.class.name =~ /#{maildir_format}/
+  end
+
+  it "reads its color attribute from the config file" do
+    fg = config.colors.foreground
+    bg = config.colors.background
+    view.colors[:fg].should eq Termbox::Colors[:green]
+    view.colors[:bg].should eq Termbox::Colors[:black]
+  end
+end