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Pietro Gagliardi 4e820e86fc Moved gtk_main() such that uitask_unix.go calls it directly via cgo. This is in preparation for the next two commits, which will remove the #cgo directives from all files except the uitask_*.go files, since they're being concatenated across files.		2014-05-19 22:18:53 -04:00
experiments	Added experimental code that tried, and failed, to combat combobox autoselection on Mac OS X.	2014-05-17 15:06:44 -04:00
olddocs	Moved some old documents out of the top-level directory and into a folder olddocs/ to make things neater.	2014-05-16 19:57:25 -04:00
test	Changed the meaning of the Modifiers keys to be positional, added Super, and pinned down Meta vs. Alt. All but the Meta/Alt one were done after discussion in #go-nuts about how to handle differences in user expectation properly. This is the portable interface only; each platform implementation comes next.	2014-05-16 18:16:25 -04:00
.travis.yml	Changed -qq to -y in the apt-get install line in .travis.yaml because I want to see the full details of the install.	2014-03-24 11:54:30 -04:00
LICENSE	Added license and README.	2014-02-17 18:38:50 -05:00
README.md	Updated the README for the Objective-C change.	2014-05-16 09:16:17 -04:00
area.go	Changed the meaning of the Modifiers keys to be positional, added Super, and pinned down Meta vs. Alt. All but the Meta/Alt one were done after discussion in #go-nuts about how to handle differences in user expectation properly. This is the portable interface only; each platform implementation comes next.	2014-05-16 18:16:25 -04:00
area_darwin.go	Removed TODO about buttons 1+3 causing a button 2 click on Mac OS X Areas... it was actually on my host's end: X11/KDE is doing it, and I never noticed that before, nor do I remember that happening on the Windows/wine or GTK+ versions :S That's it for the TODOs in the Mac OS X Go files! :D	2014-05-18 12:53:15 -04:00
area_darwin.m	Organized the dummyRect declarations/definitions/etc. in the Objective-C files. I think that's it for the Objective-C conversion of the Mac OS X code!	2014-05-16 09:13:11 -04:00
area_unix.go	Fixed variable names in Area drawing code on Unix to reflect that image.Rectangle is point-to-point, not origin/size like on Mac OS X. Windows was already fine; it just uses "left, top, right, and bottom" instead of "x0, y0, x1, and y1".	2014-05-17 17:01:52 -04:00
area_windows.go	Added proper Super handling on Windows. Meta isn't used here and the modifiers were already in the correct order.	2014-05-16 18:56:03 -04:00
button.go	Documented that event channels can be assigned to each other to collapse events.	2014-04-10 11:59:40 -04:00
callbacks_unix.go	More TODOs (see previous commit).	2014-05-17 17:10:23 -04:00
checkbox.go	Moved TODOs about new event signals to the future plans document.	2014-04-28 20:59:42 -04:00
combobox.go	Moved TODOs about new event signals to the future plans document.	2014-04-28 20:59:42 -04:00
comctl_windows.go	Decided not to deactivate the Windows Common Control 6 manifest activation context since it's active for the life of the program already.	2014-04-29 10:30:03 -04:00
common_windows.go	Consistency change: all Windows API structure field names now match case-wise (some were forcibly exported in the past for historical reasons: I originally started package ui by trying to write a Windows API wrapper, but decided to ditch that and just use the Windows API directly from package ui). Also more TODOs.	2014-05-11 11:11:57 -04:00
control.go	Updated the documentation: Area now works on all platforms, Modifiers behavior on both left and right keys simultaneously is undefined for now, and the way to create custom Controls no longer involves embedding Area.	2014-03-30 19:57:24 -04:00
controls_windows.go	Moved TODOs about stripping non-Windows XP constants to future plans; also reworded a comment in comctl_windows.go.	2014-04-28 12:13:06 -04:00
d32	cgo inserts -m32 automatically, so we don't need to in ./d32.	2014-03-08 17:32:56 -05:00
delegate_darwin.go	Decided to unconditionally redraw everything on a window resize on Mac OS X. Now to add TODOs for the other platforms to see if we should do the same.	2014-05-17 17:07:53 -04:00
delegateuitask_darwin.m	Organized the dummyRect declarations/definitions/etc. in the Objective-C files. I think that's it for the Objective-C conversion of the Mac OS X code!	2014-05-16 09:13:11 -04:00
dialog.go	Removed unnecessary space if the secondaryText argument to MsgBox***() is an empty string. This doesn't change much on Mac OS X; it always shows the informational text field, showing an empty string by default. On GTK+ it seems to get rid of the bold over the primary text; I'm going to assume this is intentional (it looks that way on GTK+ 2; the HIG docs have outdated screenshots...).	2014-04-10 12:35:37 -04:00
dialog_darwin.go	Combined all the Objective-C headers into objc_darwin.h.	2014-05-16 06:49:29 -04:00
dialog_darwin.m	Combined all the Objective-C headers into objc_darwin.h.	2014-05-16 06:49:29 -04:00
dialog_unix.go	Decided not to show an icon in the regular MsgBox() on Windows and Unix. For Mac OS X I need to see what the difference between Warning and Informational is.	2014-04-25 18:39:43 -04:00
dialog_windows.go	Decided not to show an icon in the regular MsgBox() on Windows and Unix. For Mac OS X I need to see what the difference between Warning and Informational is.	2014-04-25 18:39:43 -04:00
doc.go	Documented that event channels can be assigned to each other to collapse events.	2014-04-10 11:59:40 -04:00
events_darwin.go	Implemented the Super and order changes on Mac OS X. Meta is irrelevant here.	2014-05-16 19:52:28 -04:00
events_notdarwin.go	Finished re-adding the numeric keypad keys and fixing up the GTK+ Area implementation to handle the new KeyEvent. Everything seems to work on this end...	2014-03-29 13:09:27 -04:00
events_windows.go	Added part of keyboard input on Windows. Need to repaint the window on event return and handle area sizes now...	2014-03-29 17:52:40 -04:00
futureplans.md	More future plans.	2014-05-14 23:21:17 -04:00
grid.go	Resolved Grid TODOs: moved feature requests to future plans and made sure SetStretchy() doesn't leave previous stretchy controls filling by accident.	2014-04-29 10:10:28 -04:00
gtk_unix.h	Moved <stdlib.h> includes in the GTK+ backend to gtk_unix.h; organized that file a bit.	2014-04-01 16:01:49 -04:00
gtkcalls_unix.go	Moved gtk_main() such that uitask_unix.go calls it directly via cgo. This is in preparation for the next two commits, which will remove the #cgo directives from all files except the uitask_*.go files, since they're being concatenated across files.	2014-05-19 22:18:53 -04:00
gtkcasts_unix.go	Changed fromgchar()/togchar() to fromgstr()/togstr() in the GTK+ code; the new names are more precise (though they don't operate on GStrings; that's not an issue here though).	2014-04-26 22:55:43 -04:00
init.go	Removed a TODO from init.go that was already in the future plans document.	2014-04-28 02:15:19 -04:00
init_windows.go	Cleaned up/removed some (not all) TODOs in init_windows.go.	2014-04-28 12:44:07 -04:00
label.go	Fixed Area test time label weirdness by making Labels truncate their text instead of word-wrapping on all platforms. This doesn't explain GTK+/Wayland, alas.	2014-04-13 18:05:07 -04:00
lineedit.go	Moved TODOs about new event signals to the future plans document.	2014-04-28 20:59:42 -04:00
listbox.go	Found a method in NSArrayController via Stack Overflow which lets me suppress selection-changing behavior on NSTableView inserts; use that on Listbox in Mac OS X. This means sysData.selectIndices() and its Mac OS X implementation can (and has) gone away, clearing TODOs on Windows and Unix by extension.	2014-05-17 12:42:00 -04:00
listbox_darwin.go	Found a method in NSArrayController via Stack Overflow which lets me suppress selection-changing behavior on NSTableView inserts; use that on Listbox in Mac OS X. This means sysData.selectIndices() and its Mac OS X implementation can (and has) gone away, clearing TODOs on Windows and Unix by extension.	2014-05-17 12:42:00 -04:00
listbox_darwin.m	Added the Stack Overflow link for Mac OS X Listbox insertion autoselection and fixed deletion autoselection as well.	2014-05-17 13:27:54 -04:00
listbox_unix.go	Resolved TODOs in listbox_unix.go; also rewrote some related if expressions there to be clearer.	2014-04-27 15:06:52 -04:00
menus_windows.go	Separated file creation dates from the package comment.	2014-03-12 21:55:45 -04:00
objc_darwin.go	Fixed up a bunch of Mac OS X function names, mostly Listbox-related, to be more clear and more consistent.	2014-05-16 20:44:19 -04:00
objc_darwin.h	Found a method in NSArrayController via Stack Overflow which lets me suppress selection-changing behavior on NSTableView inserts; use that on Listbox in Mac OS X. This means sysData.selectIndices() and its Mac OS X implementation can (and has) gone away, clearing TODOs on Windows and Unix by extension.	2014-05-17 12:42:00 -04:00
objc_darwin.m	Made drawing of NSScrollView backgrounds explicit on Mac OS X. This is what Interface Builder sets for NSTableViews, so we do that too for Listbox. This also means NSScrollView draws the background for our Areas, settling the clear clip rect TODO.	2014-05-17 20:21:48 -04:00
prefsize_darwin.go	Combined all the Objective-C headers into objc_darwin.h.	2014-05-16 06:49:29 -04:00
prefsize_darwin.m	Combined all the Objective-C headers into objc_darwin.h.	2014-05-16 06:49:29 -04:00
prefsize_unix.go	Removed height-for-width TODO from prefsize_unix.go after discussion with Company in irc.gimp.net/#gtk+.	2014-04-27 16:26:06 -04:00
prefsize_windows.go	Rolled back the Windows horizontally scrolling Listbox changes because I can't seem to get it to work on Mac OS X (and keeping that code there is inefficient); removed the guarantee of horizontal scrollbars in Listbox and made that a future plan. Both the Windows and the non-working Mac OS X code is in unmigrated/hscrolllistbox.go (and the unmigrated/ folder will be renamed shortly).	2014-04-13 13:00:07 -04:00
progressbar.go	Removed the initText parameter from sysData.make() and changed all invocations to call sysData.setText() separately; this avoids the need to check if sysData.setText() is valid. Also implemented that on GTK+.	2014-04-01 16:43:56 -04:00
stack.go	Made Space() return the same Control repeatedly instead of making a new one each time to conserve memory. No future guarantees, however, so that is noted in the documentation as well.	2014-04-26 16:05:23 -04:00
stdfont_windows.go	Got rid of another TODO about GetLastError() in the same way as earlier (this time in stdfont_windows.go); also fixed capitalization on the earlier one.	2014-04-28 21:32:49 -04:00
stdwndclass_windows.go	More TODOs (see previous commit).	2014-05-17 17:10:23 -04:00
sysdata.go	Found a method in NSArrayController via Stack Overflow which lets me suppress selection-changing behavior on NSTableView inserts; use that on Listbox in Mac OS X. This means sysData.selectIndices() and its Mac OS X implementation can (and has) gone away, clearing TODOs on Windows and Unix by extension.	2014-05-17 12:42:00 -04:00
sysdata_darwin.go	Found a method in NSArrayController via Stack Overflow which lets me suppress selection-changing behavior on NSTableView inserts; use that on Listbox in Mac OS X. This means sysData.selectIndices() and its Mac OS X implementation can (and has) gone away, clearing TODOs on Windows and Unix by extension.	2014-05-17 12:42:00 -04:00
sysdata_darwin.m	Organized the dummyRect declarations/definitions/etc. in the Objective-C files. I think that's it for the Objective-C conversion of the Mac OS X code!	2014-05-16 09:13:11 -04:00
sysdata_unix.go	Found a method in NSArrayController via Stack Overflow which lets me suppress selection-changing behavior on NSTableView inserts; use that on Listbox in Mac OS X. This means sysData.selectIndices() and its Mac OS X implementation can (and has) gone away, clearing TODOs on Windows and Unix by extension.	2014-05-17 12:42:00 -04:00
sysdata_windows.go	Found a method in NSArrayController via Stack Overflow which lets me suppress selection-changing behavior on NSTableView inserts; use that on Listbox in Mac OS X. This means sysData.selectIndices() and its Mac OS X implementation can (and has) gone away, clearing TODOs on Windows and Unix by extension.	2014-05-17 12:42:00 -04:00
tableviewproposal.md	Switched TableView proposal from <tt>...</tt> to <tt><ins>...</ins></tt> to make those parts distinct from code blocks.	2014-05-08 16:38:46 -04:00
test.sh	Changed the ".." import in the test binary to a proper "github.com/andlabs/ui" import. (This means I finally moved my working environment out of a folder src/wingo and into the proper src/github.com/andlabs/ui.)	2014-03-04 23:10:48 -05:00
todo.md	TODO file update.	2014-05-19 00:11:50 -04:00
uitask_darwin.go	Decided not to move the initCocoa() function to a file init_darwin.go because it's small enough now that it doesn't matter.	2014-05-16 20:24:30 -04:00
uitask_unix.go	Moved gtk_main() such that uitask_unix.go calls it directly via cgo. This is in preparation for the next two commits, which will remove the #cgo directives from all files except the uitask_*.go files, since they're being concatenated across files.	2014-05-19 22:18:53 -04:00
uitask_windows.go	Consistency change: all Windows API structure field names now match case-wise (some were forcibly exported in the past for historical reasons: I originally started package ui by trying to write a Windows API wrapper, but decided to ditch that and just use the Windows API directly from package ui). Also more TODOs.	2014-05-11 11:11:57 -04:00
window.go	Documented that event channels can be assigned to each other to collapse events.	2014-04-10 11:59:40 -04:00
windows_windows.go	Consistency change: all Windows API structure field names now match case-wise (some were forcibly exported in the past for historical reasons: I originally started package ui by trying to write a Windows API wrapper, but decided to ditch that and just use the Windows API directly from package ui). Also more TODOs.	2014-05-11 11:11:57 -04:00

README.md

Native UI library for Go

THIS PACKAGE IS UNDER ACTIVE DEVELOPMENT. It can be used; the API is stable enough at this point, but keep in mind there may still be crashes and API changes, as suggestions are always open. If you can help, please do! Run `./test` to build a test binary `test/test` which runs a (mostly) feature-complete UI test. Run `./d32 ./test` to build a 32-bit version (you will need a cgo-enabled 32-bit go environment, and I have only tested this on Mac OS X).

UPDATE 12 March 2014: Windows 2000 is no longer supported as it is no longer supported by Go.

UPDATE 18 March 2014: Resizes are now assumed to stop other UI event processing, and thus do not run with locks anymore. I changed real control resizing so that it doesn't need to lock (it just fills an array with data fed in), but real control `preferredSize()` and `Stack`/`Grid.setRect()` could potentially still be racy... if I am right it won't be an issue, but if anyone else knows, please let me know. (Everything else is thread-safe again.)

UPDATE 27 March 2014: Unix builds now require go tip due to a cgo fix that affected this package.

UPDATE 12 April 2014: Areas now require their images to be `image.RGBA`, not `image.NRGBA`. Update your code appropriately.

This is a simple library for building cross-platform GUI programs in Go. It targets Windows, Mac OS X, Linux, and other Unixes, and provides a thread-safe, channel-based API. The API itself is minimal; it aims to provide only what is necessary for GUI program design. That being said, suggestions are welcome. Layout is done using various layout managers, and some effort is taken to conform to the target platform's UI guidelines. Otherwise, the library uses native toolkits.

ui aims to run on all supported versions of supported platforms. To be more precise, the system requirements are:

Windows: Windows XP or newer. The Windows backend uses package syscall and calls Windows DLLs directly, so does not rely on cgo.
Mac OS X: Mac OS X 10.6 (Snow Leopard) or newer. Objective-C code is used directly for maximum portability, and thus this uses cgo.
- Note: you will need Go 1.3 or newer (so until it is released, go tip) for this verison, as it uses Objective-C.
Other Unixes: The Unix backend uses GTK+, and thus cgo. It requires GTK+ 3.4 or newer; for Ubuntu this means 12.04 LTS (Precise Pangolin) at minimum. Check your distribution.
- Note: you will need Go 1.3 or newer (as above) due to various cgo errors fixed in this version (such as this one).

ui itself has no outside Go package dependencies; it is entirely self-contained.

To install, simply go get this package. On Mac OS X, make sure you have the Apple development headers. On other Unixes, make sure you have the GTK+ development files:

for Ubuntu, libgtk-3-dev is sufficient
for FreeBSD with the pkgng system, gtk3 is sufficient, however you will need to manually install pkgconf to please cgo (and you may need to specify CC=gcc47) (this should be put on the Go wiki)

Package documentation is available at http://godoc.org/github.com/andlabs/ui.

For an example of how ui is used, see https://github.com/andlabs/wakeup, which is a small program that implements a basic alarm clock.

Known To Have Ever Been Built Matrices

For convenience's sake, here are matrices of builds that I have personally done at least once. Each cell represents the run status. These matrices represent builds that I have done at any point in development; it is not a guarantee that the current version works. (I built this list to answer questions of whether or not ui works with a specific configuration.) Only configurations marked with a * are tested during active development. "(invalid)" means the given OS/arch combination is not supported by Go.

386	amd64	arm
windows	works on windows; works on wine*	works on windows; fails on wine	(invalid)
linux	see table below	see table below	Raspian: works
darwin (Mac OS X)	works* (cross-compiled from 64-bit)	works*	(invalid)
dragonfly	untested	untested	(invalid)
freebsd	works	untested (VM failure)	untested
netbsd	untested	untested	untested
openbsd	untested	untested	(invalid)
solaris	(invalid)	Oracle Solaris 11: GTK+ 3 not available from official repos	(invalid)
plan9	(not written yet; problems building Go)	(not written)	(invalid)
nacl	(not sure how to handle)	(not sure how to handle)	(invalid)

linux	386	amd64
Kubuntu (14.04)	works; cross-compiling on 64-bit Linux fails due to nonexistent .so symlinks	works*
Fedora	untested	untested
openSUSE	untested	untested
Arch Linux	untested	untested
Mandriva (TODO choose between PCLinuxOS and Mageia - it appears the original Mandriva is either dead or nonfree and I would rather choose the fork that structures packages identically for parity; do they both?)	untested	untested
Slackware	untested	untested
Gentoo	untested	untested

(The above list should cover all the bases of major Linux distributions and variants thereof; I might add a dedicated Debian test later but other than that... suggestions welcome. Kubuntu 64-bit is my main system and the main development platform; the Windows builds are cross-compiled from here. And yes, this also implies I seriously consider a Plan 9 port of the library using libcontrol, though I'm guessing this will blow up in my face due to any possible conflicts between libthread and Go's runtime (I need to see how the Go runtime implements OS threads on Plan 9).)

Contributing

Contributions are welcome. File issues, pull requests, approach me on IRC (pietro10 in #go-nuts; andlabs elsewhere), etc. Even suggestions are welcome: while I'm mainly drawing from my own GUI programming experience, everyone is different. I have received emails, however I am not likely to see those right away, so I don't suggest contacting me by email if your communication is urgent.

If you want to dive in, read implementation.md: this is a description of how the library works. (Feel free to suggest improvements to this as well.) The other .md files in this repository contain various development notes.

Please suggest documentation improvements as well.