Difference between revisions of "OSD"

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m (Mineque's OSD skin/layout)
m (On Screen Display moved to OSD: easier to type)
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Revision as of 14:10, 18 March 2009

The On Screen Display (OSD) provides status information and controls blended directly onto the map.

Current OSD types:

  • "compass"
  • "navigation_next_turn"
  • "text"
  • "speed_warner"
  • "toogle_announcer"
  • "gps_status"
  • "volume"
  • "button" - with possible commands to use:
    • gui.fullscreen()
    • gui.menu()
    • gui.get_data()
    • zoom_in()
    • zoom_out()
    • speech.active


The button type can be used to provide zoom in/zoom out functionality with gui_internal (which does not itself draw any controls onto the map view). Example navit.xml contents:

   <osd type="button" x="48"  y="48"  command="gui.fullscreen()" src="toggle_fullscreen.xpm" />
   <osd type="button" x="-96" y="48"  command="gui.menu()"       src="menu.xpm" />
   <osd type="button" x="-96" y="-96" command="zoom_in()"        src="zoom_in.xpm" />
   <osd type="button" x="48"  y="-96" command="zoom_out()"       src="zoom_out.xpm" />

The x and y coordinates depend on your screen resolution and the size of your bitmaps. The origin is at the upper lefthand corner of the screen. Use negative values to position the buttons relative to the right resp. bottom edge of the screen. Besides zoom, the commands include gui_internal_menu and gui_internal_fullscreen.

You can determine the supported xml options for each OSD type by reading navit/osd/core/osd_core.c, searching for "attr_xxx" inside the osd_xxx_new() functions. Most types have at least an "x" and "y" option that determine the location of their OSD.

Align

It is possible to set item alignment. Align attribute accept several values:

  • "1": Align to the top
  • "2": Align to the bottom
  • "0" or "3": Align to the center (vertical)
  • "4": Align to the left
  • "8": Align to the right
  • "0" or "12": Align to the center (horizontal)

To get combination of alignment you have to sum vertical and horizontal alignment, so align="5" would give top left alignment


The OSD layer is still under development.

Examples

Simple

Navit-internal-osd-fon.png

Mineque's first wip

Mineque OSD Layout 01.jpg

      <osd enabled="yes" type="text" label="Currently On ${navigation.item.street_name} ${navigation.item[1].street_name_systematic}" x="0" y="0" w="735" h="30" align="0" background_color="#a60c0fee" font_size="300" />
      <osd enabled="yes" type="gps_status" x="735" y="0" w="65" h="30" align="0" background_color="#a60c0fee" font_size="300" />
      
      <osd enabled="yes" type="text" label="ETA:${navigation.item.destination_time[arrival]}" x="0"
         y="-25" w="160" h="25" align="4" background_color="#a60c0fee" font_size="350" />
      <osd enabled="yes" type="text" label="TL:${navigation.item.destination_time[remaining]}" x="160"
         y="-25" w="160" h="25"align="4" background_color="#a60c0fee" font_size="350" />
      <osd enabled="yes" type="text" label="Dist:${navigation.item.destination_length[named]}" x="320"
         y="-25" w="170" h="25" align="4" background_color="#a60c0fee" font_size="350" />
      <osd enabled="yes" type="text" label="${vehicle.position_speed} / ${tracking.item.route_speed}"
         x="490" y="-25" w="150" h="25" align="4" background_color="#a60c0fee" font_size="280"/>
      <osd enabled="yes" type="text" label="${navigation.item[1].length[named]}" x="640" y="-30" w="160" 
         h="30" background_color="#a60c0fee" font_size="500"/>
      <osd enabled="yes" type="navigation_next_turn" x="640" y="-80"  w="160" h="50" 
         background_color="#a60c0fee" /> 
      
             
      <osd enabled="yes"  type="button" x="5" y="30" command="gui.fullscreen()" src="gui_fullscreen.svg"/> 
      <osd enabled="no"  type="button" x="300" y="100" command="gui.menu()" src="menu.xpm"/>
      <osd enabled="yes"  type="button" x="5" y="475" command="zoom_in()" src="gui_zoom_in.svg"/>
      <osd enabled="yes"  type="button" x="590" y="475" command="zoom_out()" src="gui_zoom_out.svg"/>
Mineque's OSD skin/layout
  • Mineque_001 skin
    Mineque OSD Layout 02.jpg
  • Mineque_003 skin
    Mineque 003.jpg

Thoose skins fits only screens with 800px width, 640px version will be soon availble
Both skins you can grab here: (Mineque_001) and (Mineque_003).
Create dir ".navit/skins/" in your home dir and unpack there skin.
For enabling it you have to edit xml file from the archive in two places:

      <osd enabled="yes" type="button" x="0" y="-120" w="800" h="120" command="" 
src="/home/mineque/.navit/skins/Mineque_003/M_003_01.png" />
      <osd enabled="yes" type="button" x="0" y="0" w="800" h="35" command="" 
src="/home/mineque/.navit/skins/Mineque_003/M_003_02.png" />  

You have to change path after src="..." to one will fits your user dirname.
And last thing edit navit.xml. You have to comment everything between:

   <gui type="internal" />

and

   <vehicle ...

After that paste:

   <xi:include href="/home/mineque/.navit/skins/Mineque_001/Mineque_001.xml" />

under

   <gui type="internal" />

with corrected path of your user dirname and choosen skin.

Icon source setting for OSD

The N8x0 platform (and possibly others) is not very supportive of .svg image files. Navit on the other hand relies heavily on svg. The result is often missing images from your display. In the examples above you may need to replace the .svg with .png. The solution for Next Turn is to use the following config addition:

<osd enabled="yes" type="navigation_next_turn" x="325" y="-135" w="150" h="100" align="15"
   background_color="#a60c0f00" icon_src="$NAVIT_SHAREDIR/xpm/%s_wh_48_48.png" />

Note the icon_src parameter specifies the template for the image file names. This should work for all OSD items.