This is my totally unofficial list of todos for Dia.
I probably won't have time to do all this myself
so it may serve as starting point of the further
direction Dia should take.             --hb

Useability Improvements

  - remember last selected sheet (almost done)
  - remember window position
    - tree window
    - main window

  - paste objects at current mouse position ?

  - default diagram for File/New ?
    - Adapt grid defaults ?
    - Paper setting #61446

  - embed special file format dialog into main dialog ?
    Activate by selecting specific filter. Remember filter
    selection and settings  across invocations

  - Allow to copy/paste style (properties of objects)
  - Select by Style (already implemented in Python)

  - Use statusbar to display something useful:
    - the curent object type (as an icon: to change props?)
    - the number of selected objects
    - the actual object position (in combination to move
      the selected object with the cursor keys by fractions
      of the current grid settings)

Other Improvements

  - More detailed info at start-up, progress bar in splash
    (where does it spend all this time?)

  - Allow to attach 'arbitrary' data to Objects. Some kind of
    <dia:composite type="extras">
      <!-- The name is the key. It needs to be unique. With
           some predefined types one could even offer an extra
           property page to edit these
        -->
      <dia:attribute name="link" type="uri">http://hans.breuer.org/dia<attribute/>
      <dia:attribute name="C-Source" type="text">
      printf ("Hi from Dia XML.");
      </dia:attribute>
    </dia:composite>

Python Bindings

  - create object from it's XML description (done)

  - provide interfaces to property editing widgets
    to allow to build full featured user interface 
    with pygtk
  
Fixes:

  - respect lines settings of custom shapes

  - #56066 : dia-win32 ships with no .po files
    - add gettext support on win32

  - #56109 : Provide object defaults for StdProp objects
    (almost done)
    - Check quesionable objects / properties:
      UML - State ::type, 
  - #59717 : Default orientation zigzag lines
  - #60330 : Add font setting to tool palette
    - Maybe some magic indirections in the XML definition
      to allow to change multiple equal fonts as once ...

  - #56177 : Make less dialogs popping up
  - #56233 : Further xml parsing robustness
    - no real defaults for object creation => string crashing
    - game over if <object id="Ox"> is missing
    - endless loops with broken coords
    - create smarter data load/save functions, e.g.
      dia_data_color_with_default (node, name, &value, default)
      and use them all over the place (or switch to SAX interface ?)

  - #57060 : Undo on groups
  - Group resizing #59880, #59881
    - unresziable objects would be moved (around center?)
    - every object could get a scale property ?
      i.e. allow to resize UML - Classes by changing their
      fonts
  - #60331 : Object properties should handle multiple objects
    (prototype already exists in Python, requires pygtk 0.6.x patch)


Converting to Gtk2, GObject usage

- during conversion to GObject converted objects should
  be properly namespaced (Dia prefix)
- the same holds true for function conversions, i.e. keeping
  'legacy' function would be much simpler if their new replacement
  would be prefixed with dia_ (This may even be applicable to
  rewrites of whole files).

- ripp out GnomeDialog code and convert to GtkDialog. On the
  way change button ordering to conform to new guidelines

- change Renderer to DiaRenderer which inherits from GObject
  - clean up renderer interface (remove all those fill functions
    and give the respective draw functions an extra fill parameter)
  - only few functions (marked as 'abstract' in the diagram) need
    to be implemented by a concrete renderer. Everything else
    should get a default implementation in the base class
    which uses the abstract (pure virtual) functions. If any 
    concrete renderer knows better it simply can overwrite 
    specialized functions.

- convert Object and all inherits to DiaObject based on GObject
  - replace ObjectOps by proper class functions, allow additions
    e.g. DiaPolyConn could get extra functions add_point()
    and remove_point() which finally could be simply wrapped
    by language bindings (for all it's children).
  - Objects within packages should be named Dia<package><object>
    as gobject (e.g. DiaFlowchartBox) cause otherwise the would
    collide with objects from other packages
  - use GArray for Connections, Handles, etc. and get rid of
    num_* parameter in objects

- convert Point, Rectangle, ... etc. to GBoxed, GValue ?
  - goal: strong interface which allows change notification;
    gui/core separation; simple mapping for language bindings;
    allow to query with standard gobject functions ...
- change Property API to use GValue, GType ?

- DiaFont as abstract type with implementations for FreeType2,
  GtkFont, Pango