GS Release Notes

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 gtk_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.