Redmine/app/views/projects/calendar.rhtml

<h2><%= l(:label_calendar) %></h2>

<table width="100%">
<tr>
<td align="left" width="150">
    <%= link_to_remote ('&#171; ' + (@month==1 ? "#{month_name(12)} #{@year-1}" : "#{month_name(@month-1)}")), 
                        {:update => "content", :url => { :year => (@month==1 ? @year-1 : @year), :month =>(@month==1 ? 12 : @month-1) }},
                        {:href => url_for(:action => 'calendar', :year => (@month==1 ? @year-1 : @year), :month =>(@month==1 ? 12 : @month-1))}
                        %>
</td>
<td align="center">
    <%= start_form_tag :action => 'calendar', :id => @project %>
    <%= select_month(@month, :prefix => "month", :discard_type => true) %>
    <%= select_year(@year, :prefix => "year", :discard_type => true) %>
    <%= submit_tag l(:button_submit), :class => "button-small" %>
    <%= end_form_tag %>
</td>
<td align="right" width="150">
    <%= link_to_remote ((@month==12 ? "#{month_name(1)} #{@year+1}" : "#{month_name(@month+1)}") + ' &#187;'), 
                        {:update => "content", :url => { :year => (@month==12 ? @year+1 : @year), :month =>(@month==12 ? 1 : @month+1) }},
                        {:href => url_for(:action => 'calendar', :year => (@month==12 ? @year+1 : @year), :month =>(@month==12 ? 1 : @month+1))}
                        %>&nbsp;
</td>
</tr>
</table>
<br />

<table class="list with-cells">
<thead>
<tr>
<th></th>
<% 1.upto(7) do |d| %>
    <th width="14%"><%= day_name(d) %></th>
<% end %>
</tr>
</thead>
<tbody>
<tr height="100">
<% day = @date_from
while day <= @date_to
	if day.cwday == 1 %>
	<th><%= day.cweek %></th>
	<% end %>	
	<td valign="top" width="14%" class="<%= day.month==@month ? "even" : "odd" %>">
	<p align="right"><%= day==Date.today ? "<b>#{day.day}</b>" : day.day %></p>	
	<% day_issues = []
	@issues.each { |i| day_issues << i if i.start_date == day or i.due_date == day } 
	day_issues.each do |i| %>	
		<%= if day == i.start_date and day == i.due_date
		    image_tag('arrow_bw')
		elsif day == i.start_date
		    image_tag('arrow_from') 
		elsif day == i.due_date
		    image_tag('arrow_to') 
		end %>
		<small><%= link_to "#{i.tracker.name} ##{i.id}", { :controller => 'issues', :action => 'show', :id => i }, :title => "#{i.subject}" %>: <%=h i.subject.sub(/^(.{30}[^\s]*\s).*$/, '\1 (...)') %></small><br />
	<% end %>
    </td>
	<%= '</tr><tr height="100">' if day.cwday >= 7 and day!=@date_to %>
	<%
	day = day + 1
end %>
</tr>
</tbody>
</table>

<%= image_tag 'arrow_from' %>&nbsp;&nbsp;<%= l(:text_tip_task_begin_day) %><br />
<%= image_tag 'arrow_to' %>&nbsp;&nbsp;<%= l(:text_tip_task_end_day) %><br />
<%= image_tag 'arrow_bw' %>&nbsp;&nbsp;<%= l(:text_tip_task_begin_end_day) %><br />