gotk3 examples
==============
The gotk3 project provides Go bindings for GTK+3 and dependent
projects.
## Examples for gotk3
## Sample Use
The following example can be found in `gtk-examples/simple/simple.go`.
Usage of additional features is also demonstrated in the
`gtk-examples/` directory.
```Go
package main
import (
"github.com/gotk3/gotk3/gtk"
"log"
)
func main() {
// Initialize GTK without parsing any command line arguments.
gtk.Init(nil)
// Create a new toplevel window, set its title, and connect it to the
// "destroy" signal to exit the GTK main loop when it is destroyed.
win, err := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
if err != nil {
log.Fatal("Unable to create window:", err)
}
win.SetTitle("Simple Example")
win.Connect("destroy", func() {
gtk.MainQuit()
})
// Create a new label widget to show in the window.
l, err := gtk.LabelNew("Hello, gotk3!")
if err != nil {
log.Fatal("Unable to create label:", err)
}
// Add the label to the window.
win.Add(l)
// Set the default window size.
win.SetDefaultSize(800, 600)
// Recursively show all widgets contained in this window.
win.ShowAll()
// Begin executing the GTK main loop. This blocks until
// gtk.MainQuit() is run.
gtk.Main()
}
```
## Installation
gotk3 currently requires GTK 3.16, GLib 2.36-2.40, and
Cairo 1.10 or 1.12. A recent Go (1.3 or newer) is also required.
The gtk package requires the cairo, glib, and gdk packages as
dependencies, so only one `go get` is necessary for complete
installation.
The build process uses the tagging scheme gtk_MAJOR_MINOR to specify a
build targeting any particular GTK version (for example, gtk_3_10).
Building with no tags defaults to targeting the latest supported GTK
release (3.16).
To install gotk3 targeting the latest GTK version:
```bash
$ go get github.com/gotk3/gotk3/gtk
```
On MacOS (using homebrew) you would likely specify PKG_CONFIG_PATH as such:
```bash
$ PKG_CONFIG_PATH=/opt/X11/lib/pkgconfig:`brew --prefix gtk+3`/lib/pkgconfig go get -u -v github.com/gotk3/gotk3/gdk
```
```bash
$ sudo apt-get install libgtk-3-dev
$ sudo apt-get install libcairo2-dev
$ sudo apt-get install libglib2.0-dev
```
## License
Package gotk3 is licensed under the liberal ISC License.
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