GS Release Notes (Old)

GS 1.4.0

Improvements and new features

• Code has been cleared up to get rid of compiler warnings.
  Own Id: OTP-3803
• Some internal modules and processes in GS were prefixed with gtk. This prefix has been changed to gstk not to clash with modules that interface to the graphical toolkit GTk.
  Own Id: OTP-4065

Fixed errors and malfunctions

• A reference to a function in toolbar_lib (in the Toolbar application) has been removed.
  Own Id: OTP-3967

Gs 1.3.8

Fixed errors and malfunctions

• A timing problem sometimes caused a crash when a window was destroyed.
  Own Id: OTP-3789
  Aux Id: Seq 4985

GS 1.3.7

Improvements and New Features

• Added an option showvalue to the scale object, which makes it possible to turn off showing the value of the scale.
  Own Id: OTP-3456
  Aux Id: Seq 4324

GS 1.3.6

Fixed Errors and Malfunctions

• If the backend crashed, and then the process that had started GS, GS could not be restarted. This is now fixed.
  Own Id: OTP-2773

GS 1.3.5

Fixed Errors and Malfunctions

• The algorithm used to place graphic elements when using the GS packer looped infinitely if it was given a negative size. This made the system crawl. It is now fixed.
  Own Id: OTP-2558, OTP-2551
  Aux Id: OTP-2551
• Required fonts for X-servers is now documented in the User's Guide.
  Own Id: OTP-2559
• The gstk_grid module previously created an ETS table without deleting it when is should have been. This is now fixed.
  Own Id: OTP-2580
• GS now accepts hexadecimal return values with capital letters.
  Own Id: OTP-2622
  Aux Id: seq 967

Improvements and New Features

• GS used to leave a process runing after gs:stop(). This has been fixed.
  Own Id: OTP-2531, OTP-2570

GS 1.3.4

Improvements and New Features

• The possibility to specify the icon bitmap of a GS Window has never been implemented. The documentation is now corrected to reflect this.
  Own Id: OTP-1980
• Minor internal changes.
  Own Id: OTP-2479

GS 1.3.3

Fixed Errors and Malfunctions

• Using Alt-shortcuts on Windows NT no longer causes Tk to report an internal error.
  Own Id: OTP-1352
• gs:start() now returns {error, Reason} if the backend dies, instead of always returning successful result.
  Own Id: OTP-1383
• The description of how the listbox object events click and doubleclick work has been improved.
  Own Id: OTP-1470
• Alt-shortcuts now works even on Windows NT.
  Own Id: OTP-1477
• The outline of the polygon object is now black by default, instead of having the background colour.
  Own Id: OTP-1563
• A grid handling bug, that caused the debugger to crash on Windows NT, has been corrected.
  Own Id: OTP-1820
• gs:config now returns {error, Reason} if the option specified has bad format (i.e., isn't a two-element tuple), instead of causing GS to crash.
  Own Id: OTP-1976
• Internal undocumented, unsupported function tool_utils:open_help/2 used by some tools, has been fixed so that it also works for Netscape 4.x.
  Own Id: OTP-1975
  

Known Problems

• Mixed architectures (SunOS + Solaris) installations are currently not allowed.
  Own Id: OTP-1316
• Some sub-headers in the User's Guide are not clickable (when using Netscape) as they ought to be.
  Own Id: OTP-1381
• The inheritance of default values doesn't work on Windows when it comes to font objects.
  Own Id: OTP-1597
• GS (i.e., Tcl/Tk) may hang if the Erlang shell is abruptly killed.
  Own Id: OTP-1599
• The GS Packer may misplace components having a borderwidth greater than zero.
  Own Id: OTP-1627
• Due to a Tcl/Tk problem, transparent GIF's aren't shown that way when loaded in the image object.
  Own Id: OTP-1942
• The anchor option some GS object use is poorly documented.
  The listing of the options available for the image object is confusing; all options available when loading bitmaps are not available when loading GIF's.
  Own Id: OTP-1943
• On some windows managers it is very hard, if not impossible, to specify the icon bitmap when creating/configuring a window.
  Own Id: OTP-1980

GS 1.3.2

Improvements and New Features

• GS now works on Windows 95.
  Own Id: OTP-1416

Known Problems

Same as in version 1.2.1.

GS 1.3.1

Improvements and New Features

• New linked-in driver for GS backend towards tcl/tk for better performance (Windows NT only).
  

Known Problems

Same as in version 1.2.1.

GS 1.3

Improvements and New Features

• GS has got a packer. See the frame object.

Fixed Errors and Malfunctions

• Reading text containing special characters from a listbox item works.
  Own Id: OTP-1255

Known Problems

Same as in version 1.2.1.

GS 1.2.1

Improvements and New Features

• GS now also runs on Windows NT.

Fixed Errors and Malfunctions

• Font problem during start-up on some platforms.
  Own Id: OTP-1105
• gs:read(Obj, parent) and gs:read(Obj, children) now return correct ObjIds.
  Own Id: OTP-1119
• Reading the text from the label option works better.
  Own Id: OTP-1125
• GS detects name collitions when objects are created.
• Internal synchronisation error that caused non-deterministic crashes is corrected.

Known Problems

• The editor options char_height, char_width returns dummy values.
• Travering menues using the keyboard (Alt+Key) doesn't work (a bug in tcl/tk).

GS 1.2

Improvements and New Features

• Initialisation. Color and font settings from .Xdefaults don't mess up each GS application.
• Font model. A platform independent font model including fall-back handling.
• Default value model. Container objects can propagate properties to all its children.
• Erlang cache. Data for x,y,width,height,coords are stored in Erlang for efficient read operations.
• The Editor object has got a lot of new features.
• The Grid object is replaces with a new faster (and easier to use) row oriented object.
• Support for distribution.
• Different mouse cursors can be used.
• A beep command for audio feedback.
• Popup menues.
• GS is quiet when an error occurs. This solves synchronisation-like problems when handling for example destroy events from the window manager.
• New and more convenient interface functions.

Incompatibilities

• The Grid object is changed. Rewrite should not be difficult.
• The canvas option find is replaced with hit.
• The editor option file is replaced with load (and save is added).
• Return value when a gs function detects an error.
• gs:read(Obj,id) returns {error,Reason} instead of undefined if the object doesn't exist.

Fixed Errors and Malfunctions

• The coordinates for window events are now correct even if an object is overlapping the window.
• Menuitems can be destroyed.
• Naming a grid works.
• Multi-select mode has been fixed for the listbox.
• Reading the data field for canvas objects now works fine.
• {fill,none} now works fine for canvas objects.
• x,y for windows are correct even if the window is located outside screen.

Known Problems

• gs:stop() stops the graphics server, deleting all windows within it. This is not the opposite of gs:start/0 since it will affect all applications using gs. The correct way to finish an application is to use gs:destroy/1 or let the process terminate.