11/20/2001 Summary of changes

- gtkextrafeatures.h is now generated automatically by the configure script
through gtkextrafeatures.h.in

- gtkextra.h includes the new headers for gtkplotdt.h

GtkIconFileSel
==============

- New history combo to jump directly to a directory of choice, either
typing in, or using the previous entries.

GtkPlotCanvas
=============

- New child: CANVAS_MARKERS to handle dataset markers (see gtkplotdata below)

- New selection stretegy.

- New function gtk_plot_set_pc

- gtk_plot_canvas_freeze/thaw methods

GtkPlotCSurface
===============

- Gradient with sublevels.

GtkPlotSurface
==============

- Use new Delaunay triangulization algorithm (gtkplotdt)

- New functions to colour the surface using a gradient proportional to 
  the height field:

  void            gtk_plot_surface_use_height_gradient (GtkPlotSurface *data,
                                                 gboolean use_gradient);
  void            gtk_plot_surface_set_transparent(GtkPlotSurface *data,
                                                 gboolean transparent);

GtkPlotData
===========

- New alternative to retrieve data points trough a callback function 
using gtk_plot_data_new_iterator(...). See demo program testiterator.c

- Scale points size using gtk_plot_data_set_a/da_scale(...)
  This is actually aplicable only for bubbles, boxes and arrows.

- New functions:

  void          gtk_plot_data_draw_gradient             (GtkPlotData *data,
                                                         gint x, gint y);
  void          gtk_plot_data_gradient_autoscale_a      (GtkPlotData *data);
  void          gtk_plot_data_gradient_autoscale_da     (GtkPlotData *data);
  void          gtk_plot_data_gradient_autoscale_z      (GtkPlotData *data);

  to autoscale gradient according to field.

- gtk_plot_data_get_point() to retrieve values

- Data markers:

  GtkPlotMarker *       gtk_plot_data_add_marker        (GtkPlotData *data,
                                                         guint point);
  gboolean      gtk_plot_data_remove_marker             (GtkPlotData *data,
                                                         GtkPlotMarker *marker);
  void          gtk_plot_data_remove_markers            (GtkPlotData *data);
  void          gtk_plot_data_show_markers              (GtkPlotData *data,
                                                         gboolean show);
  gboolean      gtk_plot_data_markers_visible           (GtkPlotData *data);

GtkPlot
=======

- Eric Monsler <emonsler@beamreachnetworks.net>
  Fixes for autoscaling.

- New function gtk_plot_set_pc

- New signal "tick_label" to retrieve axes tick labels.

- New functions to handle axes labels:

  void          gtk_plot_axis_set_labels_offset         (GtkPlot *plot,
                                                         GtkPlotAxisPos axis,
                                                         gint offset);
  gint          gtk_plot_axis_get_labels_offset         (GtkPlot *plot,
                                                         GtkPlotAxisPos axis);
GtkPlotPC
=========

- New function
  void gtk_plot_pc_set_viewport                         (GtkPlotPC *pc,
                                                         gdouble w, gdouble h);

- Bugfixes and enhancements after working on gtkplotart (a driver for libart)
 and gtkplotgnome (a driver for gnomt-print) for SciGraphica.

GtkSheet
========

- New function
  GtkWidget * gtk_sheet_get_entry_widget            (GtkSheet *sheet);

- Background colors and grid handling using:
  void gtk_sheet_set_background              (GtkSheet *sheet,
                                              GdkColor *bg_color);
  void gtk_sheet_set_grid                    (GtkSheet *sheet,
                                              GdkColor *grid_color);
  void gtk_sheet_show_grid                   (GtkSheet *sheet,
                                              gboolean show);
  gboolean gtk_sheet_grid_visible            (GtkSheet *sheet);


08/08/2001 Summary of changes

- some minor cleanups to the cvs repository: 
	copied autogen.sh from scigraphica and
	removed all files generated through autogen.sh/configure

GtkPlotPC
=========

- Tobias Rapp's (<yahuxo@gmx.de>) patch for numpoints < 1 in draw_polygon/lines
- Several enhancements.

GtkPlotDT 
=========

- fixed memory leak
- test for triangle bounding box before testing if node is inside
  triangle -> speedup of factor 2!
- calculate triangle area and emtpy circle when they are actually 
  needed. -> minor speedup
- skip nodes with same (x,y) as already inserted node.

- bugfix for triangle bounding box calculation
- added testgtkplotdtflux.c for displaying the generated mesh
  (testgtkplotdt.in can be used as test data!)
	
08/08/2001 Summary of changes

GtkPlotDT 
=========

- added gtkplotdt.h, gtkplotdt.c (delaunay triangulization algorithm)
- added testgtkplotdt.c, testgtkplotdt.in to test the above
- added Makefile rule "testdt" to access this test
	
24/07/2001 Summary of changes

GtkSheet 
========

- bugfix in gtk_sheet_thaw
- bugfix: FALSE return value after "deactivate" signal

GtkPlotGdk
==========

- memory leak in draw_lines/draw_polygon, 
  by Damian Gilmurray <dgilmurray@cambridgebroadband.com>

GtkPlotCanvas
=============

- memory leaks,  
  by Damian Gilmurray <dgilmurray@cambridgebroadband.com>

GtkPlot
=======

- memory leaks,  
  by Damian Gilmurray <dgilmurray@cambridgebroadband.com>

- New functions: 
void            gtk_plot_grids_set_on_top               (GtkPlot *plot,
                                                         gboolean on_top);
gboolean        gtk_plot_grids_on_top                   (GtkPlot *plot);

  display grids on top/below data.


27/06/2001 Summary of changes

Gtk+Extra-0.99.15 includes new widgets, and important bugfixes and enhancements. 

GtkFileList
===========

- New "gnome-like" icons.
- Option to show/hide hidden files (name starting with ".")/directories
- New functions (example in testgtkfilesel.c):
gboolean        gtk_file_list_open_dir       (GtkFileList *file_list,
                                              const gchar *path);
gint            gtk_file_list_get_filetype   (GtkFileList *file_list);
gint            gtk_file_list_add_type       (GtkFileList *file_list,
                                              const gchar **pixmap_data);
void            gtk_file_list_add_type_filter(GtkFileList *file_list,
                                              gint type,
                                              const gchar *filter);

GtkIconFileSelection
====================

- Enhancements and bugfixes.
- Horizontal scrollbar only.
- Directories in the iconlist and hidden files.
- New option (example in testgtkfilesel.c):
void     gtk_icon_file_selection_show_tree      (GtkIconFileSel *filesel,
                                                 gboolean show);

GtkIconList
===========

- New function:

GtkIconListItem *gtk_icon_list_add_from_pixmap        (GtkIconList *icon_list,
                                                       GdkPixmap *pixmap,
                                                       GdkBitmap *bitmap,
                                                       const gchar *label,
                                                       gpointer link);

- Enhancements and bugfixes.

GtkPlot
=======

- New function (example in testimage.c):

 void          gtk_plot_set_background_pixmap  (GtkPlot *plot,
                                                GdkPixmap *pixmap);

- FLAGS removed an replaced by:
 void          gtk_plot_set_transparent        (GtkPlot *plot,
                                                gboolean transparent);
 gboolean      gtk_plot_is_transparent         (GtkPlot *plot);

- text borders (example in testgtkplot.c):
 void          gtk_plot_text_set_border        (GtkPlotText *text,
                                                GtkPlotBorderStyle border,
                                                gint border_space,
                                                gint border_width,
                                                gint shadow_width);

- Enhancements and bugfixes: memory leaks, WYSIWYG.


GtkPlotCanvas
============

- New Canvas child GTK_PLOT_CANVAS_PIXMAP (example in testgtkplot.c):
 GtkPlotCanvasChild *
               gtk_plot_canvas_put_pixmap      (GtkPlotCanvas *canvas,
                                                GdkPixmap *pixmap,
                                                gdouble x1, gdouble y1);

GtkPlotFlux
===========

- New option to center vectors:

 void          gtk_plot_flux_center            (GtkPlotFlux *flux,
                                                gboolean center);
 gboolean      gtk_plot_flux_is_centered       (GtkPlotFlux *flux);


GtkPlotPC, GtkPlotGDK, GtkPlotPS
================================

- New functions to draw pixmaps:

 void gtk_plot_pc_clip_mask                            (GtkPlotPC *pc,
                                                        gdouble x,
                                                        gdouble y,
                                                        GdkBitmap *mask);

 void  gtk_plot_pc_draw_pixmap                         (GtkPlotPC *pc,
                                                        GdkPixmap *pixmap,
                                                        gint xsrc, gint ysrc,
                                                        gint xdest, gint ydest,
                                                        gint width,
                                                        gint height,
                                                        gdouble scale_x,
                                                        gdouble scale_y);

GtkPlotPrint
============

- Important bugfixes concerning the WYSIWYG behavior.


GtkSheet
========

- bugfix in gtk_sheet_thaw.


New widgets:

GtkPlotPixmap
=============

GtkPlotData subclass for using pixmaps as symbols. Demo example
in testpixmap.c

GtkCharSelection
================

A table of togglebuttons to select a symbol among several fontsets.



17/04/2001 Summary of changes

GtkSheet
========

- Bugfixes removing widgets, and memory leaks. By Chris Howell (Applix)



09/03/2001 Summary of changes

21/02/2001:

- GtkExtra version checks. gtkextra.c

15/02/2001:
Murray Cumming:
- Made GdkColor* and GtkSheetRange* args const in most set_ functions.
- Fixed some "may have been used uninitialised" and "not handled in switch" warnings.
- Change Plot style args to GtkPlotLineStyle from gint.


GtkSheet
========

- Bugfixes in DeleteColumn/DeleteRow

- Bugfix in delete_columns/delete_rows


25/02/2001:
Murray Cumming:
  - Changed some function args to guint from gint.
  - Changed some gint funtion returns to gboolean.

GtkPlot
=======

- Return values in gtk_plot_get_pixel are gdouble.

- For consistency, the functions gtk_plot_axis_labels_set... were renamed 
  as gtk_plot_axis_set_labels...

New functions:

- You can set axis labels suffix and prefix using
    gtk_plot_axis_set_labels_prefix/suffix


GtkPlot
=======

- Return values in gtk_plot3d_get_pixel are gdouble.

- Fixed problem with declaration of gtk_plot_axis_get_type

- Fixes in logscale


GtkPlotPC, GtkPlotGdk, GtkPlotPS
================================

- All arguments in drawing methods changed to gdouble to improve 
  quality of PostScript output.


GtkPlotData
===========

- Silly bug with gtk_widget_show/hide

- gtk_plot_data_draw_symbol has gdouble arguments now


GtkIconList
===========

New functions:
void            gtk_icon_list_set_mode          (GtkIconList *iconlist,
                                                 guint mode);
guint           gtk_icon_list_get_mode          (GtkIconList *iconlist);
void            gtk_icon_list_set_row_spacing   (GtkIconList *iconlist,
                                                 guint spacing);
guint           gtk_icon_list_get_row_spacing   (GtkIconList *iconlist);
void            gtk_icon_list_set_col_spacing   (GtkIconList *iconlist,
                                                 guint spacing);
guint           gtk_icon_list_get_col_spacing   (GtkIconList *iconlist);
void            gtk_icon_list_set_text_space    (GtkIconList *iconlist,
                                                 guint space);
guint           gtk_icon_list_get_text_space    (GtkIconList *iconlist);
void            gtk_icon_list_set_icon_border   (GtkIconList *iconlist,
                                                 guint space);
guint           gtk_icon_list_get_icon_border   (GtkIconList *iconlist);
void            gtk_icon_list_set_icon_width    (GtkIconList *iconlist,
                                                 guint space);
guint           gtk_icon_list_get_icon_width    (GtkIconList *iconlist);


06/12/2000 Summary of changes

- Construct functions added to all the widgets. Useful for C++ and other 
language bindings. By Murray Cumming <murrayc@usa.net> 

GtkIconFileSel
==============

New functions:

- gtk_icon_file_selection_show_hidden(GTK_ICON_FILESEL(filesel), TRUE);

    It allows to show files with names beggining in "."

- gtk_icon_file_selection_set_filter(GtkIconFileSel *filesel,
                                     const gchar *filter);

    Sets the filter but also displays it.

  Both by Allin Cotrell <cottrell@wfu.edu>

GtkDirTree
==========

- Fix to display directories beggining with "."

- Fix to move to the selected directory at start time.

  Also by Allin Cotrell <cottrell@wfu.edu>


GtkPlot
=======

- New Function:

  gtk_plot_clip_data

    If TRUE, the data is clipped to fit the frame.

- GtkPlotAxis is now a GtkObject subclass

- gtk_plot_axis_set_tick_labels removed.

- New method for setting custom labels: connect the signal "tick_label" using
  gtk_signal_connect(GTK_OBJECT(axis), "tick_label", 
                     GTK_SIGNAL_FUNC(parse_tick_label), NULL);

  the return value is a string with the customized label generated in  
  "parse_tick_label", a function defined by the user

  Thanks to Alexander Havng" <eel@musiknet.se> for the suggestion and
  the patches.

- gtk_plot_data_show/hide removed. We use gtk_widget_show/hide instead.

- All functions called ..._get_visible are now ..._visible 

- The order of the arguments in gtk_plot_put_text is now
  font, height, angle.


GtkPlot3D
=========

- All functions called ..._get_visible are now ..._visible 


GtkPlotCanvas
=============

- gtk_plot_canvas_get_active_point returns -1 if no point is active

- The order of the arguments in gtk_plot_canvas_put_text is now
  font, height, angle.


GtkPlotData
===========

- gtk_plot_data_gradient_set/get_mask renamed as 
  gtk_plot_data_set/get_gradient_mask

- All functions called ..._get_visible are now ..._visible 


21/11/2000 Summary of changes

 - New plot subclasses for 3D and polar plots: GtkPlot3d and GtkPlotPolar. 

   GtkPlot3D has its own API, but GtkPlotPolar can be casted as a GtkPlot 
 considering the equivalence x->r, y->angle.

 - GtkPlotData is a widget. The API is almost the same. You may have to
 cast the widget using data = GTK_PLOT_DATA(gtk_plot_data_new());

 - The other Data subclasses are Bar, Box, Flux, Surface and
 CSurface.

 - I added new arguments to the datasets (z, dz, a, da): z is obviously for 
 3d plots. However, it is used in GtkPlotBox to specify the size of the boxes.
 "a" is used to determine the size of the symbols, and "da", the color.

 - The color of the symbols, when "da" is specified, is detemined using the
 gradient. the gradient has (min, max) values, and corresponding colors. The
 symbol's color is interpolated between these values using hue/saturation/value
 depending on the gradient_mask.

 - GtkOrientation was replaced with GtkPlotOrientation
 (GTK_PLOT_AXIS_X/Y/Z)

 - the fields xticks and yticks were removed from gtkplot.

 - GtkPlotSymbol has a new field GtkPlotLine border and you set/get the
 attributes with gtk_plot_data_set/get_symbol

 - I removed the symbol type: GTK_PLOT_SYMBOL_BAR, because this is a new
 data subclass. I added TRIANGLE_LEFT/RIGHT and DOT.

 - After gtk_plot_canvas_paint, you have to use gtk_plot_canvas_refresh to
 refresh the pixmap in the window. This is because paint can be
 used to print or save plots in other formats, depending on the GtkPlotPC
 you are using (see below).

 - The drawing engine, called GtkPlotPC has been rewritten. Now
 it's a GtkObject, and you can derive subclasses as GtkPlotGdk and
 GtkPlotPS in our case (You can define your own if you want to use a
 different library to draw your plots!). 

 How does it work:
 1) Instead of creating a GdkGC, you create either a GtkPlotGdk or
 GtkPlotPS.
 2) you do the following replacements:

 gdk_gc_set_foreground -> gtk_plot_pc_set_color
 gdk_gc_set_dash -> gtk_plot_pc_set_dash
 gdk_gc_set_line_attributes -> gtk_plot_pc_set_lineattr
 gdk_gc_draw_... -> gtk_plot_pc_draw_...

 The output will be either on a drawable or a file according to the
 GtkPlotPC you chose.

 All the redundant code for the PS output in gtkplotprint was eliminated!
 Elegant, isn't it?

 - I also added a new widget: gtktogglecombo, a gtkcombobox subclass (See it
 in action in testgtksheet)

 - New demos are included.


01/09/2000 Summary of changes

BugFixes in GtkColorCombo, and improvements GtkPlotCanvas.


29/08/2000 Summary of changes

BugFixes in GtkColorCombo, GtkSheet, Gtkplot, GtkPlotCanvas and GtkPlotPS.

GtkIconList
===========

- More memory leaks

GtkDirTree & GtkFileList
========================

- Modifications for Win32 compatibility, due to
  Hans Breuer <hans@Breuer.org>


04/08/2000 Summary of changes

Bugfixes in GtkSheet, GtkPlot, and GtkPlotCanvas.

GtkIconList
===========

- New function: 
  gtk_icon_list_update(GtkIconList *iconlist)
  Reorders the icons.

- Memory leaks.


05/06/2000 Summary of changes

GtkPlot
=======

- New element in the struct GtkPlotData 
  gpointer link;

  It allows to link data to the dataset.

- New functions:
  gtk_plot_data_set_link
  gtk_plot_data_get_link
  gtk_plot_data_remove_link
  gtk_plot_data_draw_points (draws last n points). See example of use in testrealdemo.c

GtkIconList
===========

- Went back to version before Allin Cottrell's changes until I am back from Argentina.


28/06/2000 Summary of changes

Misc:
=====

- Andreas Voegele sent the patches to add the following functions:
  gtk_sheet_range_get_type();
  gtk_plot_canvas_child_get_type();
  gtk_icon_list_item_get_type();
 
  and the corresponding macros

  GTK_TYPE_SHEET_RANGE,
  GTK_TYPE_PLOT_CANVAS_CHILD,
  GTK_TYPE_ICON_LIST_ITEM.


GtkSheet
========

- Argument GtkSheetRange changed to GtkSheetRange *:
  (Arnaud Charlet, GtkAda team)
  gtk_sheet_clip_range, gtk_sheet_range_set_background,
  gtk_sheet_range_set_foreground, gtk_sheet_range_set_justification,
  gtk_sheet_range_set_editable, gtk_sheet_range_set_visible,
  gtk_sheet_range_set_border, gtk_sheet_range_set_border_color,
  gtk_sheet_range_set_font

- gtk_sheet_get_max_alloc_col/row removed.
  (Murray Cumming)

- gtk_sheet_get_maxcol/maxrow cnaged to gtk_sheet_get_columns/row_count
  (Murray Cumming)

- gtk_sheet_unselect_range. Bugfixes, and GtkSheetRange * argument removed.
  It unselects the selection, and reactivates the editing entry.  

- New flag: GTK_SHEET_JUSTIFY_ENTRY
  Justifies entry's text according to the cell attributes.
  If unset, the entry's text is left justified as a normal entry.
  Default value: ON

- Memory leaks in DeleteRow/Column fixed by Allin Cottrell <cottrell@wfu.edu>

GtkItemEntry
============

- Bugfixes by Chris Howell (Applix team).

GtkPlot
=======

- Argument GtkPlotText changed to GtkPlotText *:
  (Arnaud Charlet, GtkAda team)
  gtk_plot_text_get_size, gtk_plot_text_get_area.

- Bugfixes

GtkPlotCanvas
=============

- child->draw/print changed to child->draw/print_child to avoid compatibility 
  problems with other languages.

- Bugfixes.

GtkIconList
===========

- Memory leaks fixed by Allin Cottrell <cottrell@wfu.edu>



12/06/2000 Summary of changes

GtkPlotCanvas
=============

- GtkPlotCanvasItem struct removed and replaced by GtkPlotCanvasChild

- New policy for handling canvas child objects:
  GtkPlotCanvas has a field GList *childs, replacing the old GList *text.
  Now, it can contain diferent kind of objects, like 
  GTK_PLOT_CANVAS_TEXT,
  GTK_PLOT_CANVAS_LINE,
  GTK_PLOT_CANVAS_RECTANGLE,
  GTK_PLOT_CANVAS_ELLIPSE.

  These childs are predefined in the code, and you don't have to care about.
  You just use the new functions:
  gtk_plot_canvas_put_line
  gtk_plot_canvas_put_rectangle
  gtk_plot_canvas_put_ellipse

  I have included also the type GTK_PLOT_CANVAS_CUSTOM. It allows to
  define your custom childs, like the pixmap in testgtkplot.
  To do this, you should use

  child = gtk_plot_canvas_child_new(GTK_PLOT_CANVAS_CUSTOM);
  
  and define your drawing and printing routines and redirect as

  child->data = my_data;
  child->draw = my_drawing_code;
  child->print = my_printing_code;

  This should allow to insert images in the plots.
  By default, the child can only be moved. If you also want to allow to
  resize it, you should set the child->flags.
  
- You can use the following functions to set the childs' attributes
  gtk_plot_line/rectangle/ellipse_set_attributes

- I added guiding grids to the canvas. This grids can be displayed in the 
  canvas to guide the eyes, but they are not printed.

  To do so use:
  gtk_plot_canvas_grid_set_visible
  gtk_plot_canvas_grid_set_step
  gtk_plot_canvas_grid_set_attributes

- Signal handling for "select_item" has changed. Now the signal handler returns
  a GtkPlotCanvasChild struct. The contentd of the selection are in 
  child->data, and the type is declared in child->type. See the demo.

- gtk_plot_canvas_put_text has a new field "transparent". If TRUE, the text 
  background is not drawn.


GtkPlot
=======

- Silly bugfixes

- gtk_plot_put_text has a new field "transparent". If TRUE, the text 
  background is not drawn.


GtkSheet
========

- New functions
  gtk_sheet_row/column_label_set_visibility
  gtk_sheet_rows/columns_labels_set_visibility


GtkPSFont
=========

- New handling to avoid memory leaks: 
  Every time you plan to use PSfonts you should initialize the tables and
  lists using gtk_psfont_init(); inmediately after gtk_init, or at the
  begining of a subroutine.
  At the end of the program or subroutine you should use gtk_psfont_unref();

GtkFontCombo
============

- Changed to complain the new gtkpsfont concept.

GtkComboBox
===========

- Bugfix in the size allocation routine.


08/05/2000 Summary of changes

GtkPlotCanvas
=============

- GtkPlotLayout was merged with GtkPlotCanvas and removed from the dirtribution.
  All the gtk_plot_layout... functions are now called gtk_plot_canvas...

- GtkPlotCanvas has been changed to be a GtkFixed subclass.

- gtk_plot_canvas_new has a new argument "magnification"

 Magnification: 
  With gtk_plot_canvas_set_magnification you can choose the page
  magnification. The page, and all the plots contained are rescaled.
  It's completely WYSIWYG. 

GtkPlotLayout
=============

Removed from the distribution.


GtkPlot
=======

- All the functions "gtk_plot_dataset..." are now "gtk_plot_data..."

- Magnification

- Data labels: you can add individual labels to each point.

- New functions:
  gtk_plot_set_magnification
  gtk_plot_data_set_labels
  gtk_plot_data_labels_set_attributes
  gtk_plot_data_show/hide labels


GtkItemEntry
============

- GtkIEntry is now called GtkItemEntry. 

- GTK_IENTRY is now GTK_ITEM_ENTRY

GtkIconList
===========

- GtkIconList was changed to be a GtkFixed subclass. Much, much faster...
  GtkIconFileSelection is now very usable.


19/04/2000 Summary of changes

GtkPlotCanvas
=============

Completely redesigned and re-written, almost from scratch, using the same API.
The new changes will make easier to add new objects in the future, like arrows.

- New structure GtkPlotCanvasItem:

  item->type                     item->data 
------------------------------------------------
GTK_PLOT_CANVAS_PLOT		 GtkPlot *
GTK_PLOT_CANVAS_TITLE		 GtkPlotAxis *
GTK_PLOT_CANVAS_AXIS		 GtkPlotAxis *
GTK_PLOT_CANVAS_LEGEND		 GtkPlot *
GTK_PLOT_CANVAS_TEXT		 GtkPlotText *

- Signals: "select_item", "move_item", "resize_item", "select_region"

- FLAGS: 
  GTK_PLOT_CANVAS_CAN_SELECT       allows to select a region,
                                   a simple box inside a plot.
  GTK_PLOT_CANVAS_CAN_SELECT_ITEM  allows to select objects, 
                                   but not datapoints. 
  GTK_PLOT_CANVAS_CAN_SELECT_POINT allows to select datapoints, 
                                   but not other objects. 
  GTK_PLOT_CANVAS_CAN_DND          allows to DnD objects, 
                                   once selected. 
  GTK_PLOT_CANVAS_CAN_DND_POINT    allows to DnD datapoints, 
                                   once selected. 

If you want to use DnD, you have to set both flags:
GTK_PLOT_CANVAS_CAN_SELECT_ITEM and GTK_PLOT_CANVAS_CAN_DND.
If you set only CAN_SETECT_ITEM, you won't be able to DnD.
If you set only CAN_DND, it won't work if CAN_SELECT_ITEM is off.
Same for datapoints.

You already know that if your signal handler returns the value FALSE,
the selection or action will be ignored.


GtkPlot 
=======

- Memory leaks fixed in gtk_plot_finalize.

- New function: gtk_plot_remove_text.

GtkPlotLayout 
=============

- Memory leaks fixed in gtk_plot_layout_finalize.

- New function: gtk_plot_layout_remove_text.

GtkPSFont
=========

- Patched to handle multi-enconded character sets
  by Hiroyuki ARAKI <Hiroyuki.Araki@msdw.com>

GtkSheet
========

- Macro GTK_TYPE_SHEET added.


10/04/2000 Summary of changes

GtkSheet
========

- GtkSheetAttr removed. 
  New strategy for cell attributes, using cell->attributes, now. 
  Cells and their attributes are allocated.

- Memory leaks 
  Thanks to the contributions by the Applix team:
  Chris Howell, Eric Ding, and Geoffrey.

- New function: 
  gtk_sheet_button_attach. Attach widgets to the buttons (like the pixmap in
  the demo). You can also use gtk_sheet_attach.


GtkPlot (and GtkPlotPrint)
=======

- gdk_font_unrefs added.

- Improvements in the WYSIWYG output.

- Bugfixes. More about tickmarks.


GtkPlotCanvas
=============

- New signals:
  "move_text", "move_legends", "move_plot", "resize_plot"

- BugFixes.


GtkPSFont
=========

- Bugfixes. Patches by Andreas Voegele.


GtkColorCombo
=============

-Bugfixes. Size of arrays, by Andreas Voegele.


GtkIconList
===========

- gtk_icon_list_destroy fixes memory leaks.


MISC
====

- Patches to pixmaps.h by Andreas Voegele.

- spec.in file by Conrad Steenberg <conrad@srl.caltech.edu>

- more const and gboolean patches by Murray Cumming <murrayc@usa.net>

- testgtksheet.c modified to show pixmaps in buttons.

- testgtkcheck. Simple demo for gtkcheckitem by Stephen Witkop 

14/03/2000 Summary of changes

GtkPlot (and GtkPlotPrint)
=======

- Bugfixes:
     - Minor ticks drawing out of the plot frame.
     - points' xy lines drawing out of the plot frame.


GtkComboBox
===========

- size allocation.


13/03/2000 Summary of changes

GtkDirTree
==========

- Bugfixes:
     - open_dir when the path does not end with a "/"


GtkIconFileSelection
====================

- Bugfixes

- Added a label on the top-left corner with the current path.

GtkPlotCanvas
=============

- Replaced GTK_TYPE_POINTER by GTK_TYPE_GDK_EVENT in signals deffinitions.
  (Andreas Voegele)
 
GtkPlot
=======

- Bugfixes:
     - Minor ticks drawing out of the plot frame.


10/03/2000 Summary of changes

- Fixes for ANSI C, by Aaron Lehman<aaronl@vitelus.com> and 
  Arnaud Charlet <charlet@ACT-Europe.FR>

GtkSheet
--------
- gchar* arguments replaced by const gchar* (Murray Cumming <murrayc@usa.net>)

- enums have a type

- Bugfixes:
     - top-left corner button drawing.
     - gtk_sheet_get_link.  (Andreas Voegele <andreas.voegele@gmx.de>)
     - initialization and GrowSheet. (Chris Howell <chris@applix.com>)
     - fixes when frozen. Ralf Forsberg <rfg@home.se>


GtkIconList
-----------
- GdkColor argument replaced by GdkColor *
  (Emmanuel Briot <briot@gnat.com>)

- gchar* arguments replaced by const gchar* (Murray Cumming <murrayc@usa.net>)


- Bugfixes:
     - signal handlers.  (Andreas Voegele <andreas.voegele@gmx.de>)
     - icon selection.

GtkPSFont
---------

- New function names: 
     gtk_psfont_add_font
     gtk_psfont_get_font

GtkFontCombo
------------

- Default size set to 12 
  (Andreas Voegele <andreas.voegele@gmx.de>)

- New functions:
    gtk_font_combo_select
    gtk_font_combo_select_nth

GtkPlotPC
---------
- GdkColor argument replaced by GdkColor *
  (Emmanuel Briot <briot@gnat.com>)

- pc->drawstring has new arguments (font, height)

GtkPlot
-------
- gtk_plot_paint argument changed to GtkPlot* 

- GdkColor argument replaced by GdkColor*
  (Emmanuel Briot <briot@gnat.com>)

- gchar* arguments replaced by const gchar* (Murray Cumming <murrayc@usa.net>)

- gtk_plot_dataset_get_points (Andreas Voegele)

- enums have a type

- Logarithmic scales (Torsten Luettgert <shaitan@physik.TU-Berlin.DE>)

- Autoscale function: gtk_plot_autoscale
  Rearranges the visible range to display all dataset points.
  (Thanks to Aaron Lehmann <aaronl@vitelus.com> and 
   Peter Wurmsdobler <peterw@cetehor.com>. 
   Finally I did it in my own way)
 

- Text formatting. 
  Special characters:
                     \B : bold
                     \i : italics
                     \g or \8 : greek
                     \s or \_: subindices
                     \S or \^: supraindices
                     \+ : increment size
                     \- : decrement size
                     \b : backspace
                     \N : normal
                     \0, \1, \2, \3, \4, \5, \6, \7, \8, \9 : font foundry 
       
- New tick labels format GTK_PLOT_LABEL_POW. in powers of 10 with
  the exponent as a supraindex.

- gtk_plot_axis_set_ticks changed: You have to set the number of 
  minor ticks between major ticks.

- New functions:
  - gtk_plot_autoscale
  - gtk_plot_axis_set_labels
  - gtk_plot_axis_use_custom_tick_labels
  - gtk_plot_set_legends_border
  - gtk_plot_show/hide_legends
  - gtk_plot_set_x_attrributes
  - gtk_plot_set_y_attrributes
  - gtk_plot_axis_set_major_ticks
  - gtk_plot_axis_set_minor_ticks
  
- Bugfixes.

GtkPlotLayout
------------- 
- GdkColor argument replaced by GdkColor*
  (Emmanuel Briot <briot@gnat.com>)

- gchar* arguments replaced by const gchar* (Murray Cumming <murrayc@usa.net>)

- New function gtk_plot_layout_set_size.

GtkPlotCanvas
------------- 

- New function gtk_plot_canvas_set_size.
  Rescales resizing all plots to fit into the canvas with the same ratio.

- Bugfixes:
   - signal handlers (Andreas Voegele)
   - signal emission

GtkComboBox
-----------

- New function: gtk_combo_box_hide_popdown_window


21/12/1999 Adrian E. Feiguin <adrian@ifir.edu.ar>

	* gtkplotlayout.c : new function gtk_plot_layout_set_size

	* gtkplotcanvas.c : new function gtk_plot_canvas_set_size

	* gtkpsfont.c : fixes for min_height in get_gdkfont


17/12/1999 Adrian E. Feiguin <adrian@ifir.edu.ar>
	
	* Released GtkExtra 0.99.0

 
17/12/1999 Adrian E. Feiguin <adrian@ifir.edu.ar>

	* Configure script based on the ones provided by
	  Andreas Voegele <andreas.voegele@gmx.de> for GtkSheet and
	  Peter Lerner <peter.lerner@bnbt.de> for GtkPlot,
	  and GTK+.


15/12/1999 <fancois.petitjean@bureauveritas.com>

	* gtkplotpc.c : memory leaks fixes.


15/12/1999 Adrian E. Feiguin <adrian@ifir.edu.ar>

	* gtkiconlist.c : entry_out removed.

	* gtkplot.c : several functions renamed for consistence 
          gtk_plot_axis_set/get_visible,
          gtk_plot_grids_set/get_visible,
          gtk_plot_x0/y0_set/get_visible.
           
