Author Archives: te-bachi
GTK+ Event
GTK+ Container Superclass
Description
- Container widgets are the inner nodes in the resulting tree of widgets: they contain other widgets.
- There are two major kinds of container widgets in GTK+.
- The first type of container widget has a single child widget and derives from GtkBin. These containers are decorators, which add some kind of functionality to the child.
- The second type of container can have more than one child; its purpose is to manage layout. This means that these containers assign (= zuweisen, bestimmen) sizes and positions to their children.
Child properties
- GtkContainer introduces child properties. These are object properties that are not specific to either the container or the contained widget, but rather to their relation.
GtkContainer: Child properties
Border
- The border is added on all sides of the container.
- To add space to only one side, one approach is to create a GtkAlignment widget, call gtk_widget_set_size_request() to give it a size, and place it on the side of the container as a spacer.
GTK+ Widget Size
Height-for-width Geometry Management
GtkWidget
gtk_widget_set_size_request()
gtk_widget_size_request() (deprecated)
gtk_widget_get_preferred_size()
gtk_distribute_natural_allocation()
struct GtkRequestedSize
gtk_widget_get_allocation()
gtk_widget_size_allocate()
GtkWindow
gtk_window_set_default_size()
tk_window_set_default_geometry()
gtk_window_set_geometry_hints()
Forum
Totally fed-up with get Gtk widget height and width
Maximum Size?
GTK Widget Size (actual size, not requested size)
Set Windows Geometry
Gtk: Forbid vertical resize of GtkWindow
How to reset geometry hints made with gtk_window_set_geometry_hints
struct GdkGeometry
enum GdkWindowHints
GTK+ Resource Files
#include <gtk/gtk.h>
int
main(gint argc, gchar **argv)
{
GtkWidget *window;
GtkPaned *paned;
gtk_init(&argc, &argv);
gtk_rc_parse_string("style 'my_style' {\n"
" GtkPaned::handle-size = 200\n"
" }\n"
"widget '*' style 'my_style'");
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
paned = (GtkPaned *) gtk_hpaned_new();
gtk_paned_add1(paned, gtk_label_new("left"));
gtk_paned_add2(paned, gtk_label_new("right"));
gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(paned));
gtk_widget_show_all(window);
gtk_main();
return 0;
}
Canonical Ubuntu Unity: Qt statt GTK+
GtkPaned and the “notify::position” Signal
“You can connect to “notify::position” signal.”
How to be informed when gtk.paned slider’s position changed?
“That’s the notify signal of GObject. You can use it to be notified when the property of a gobject changes.”
Re: VPaned move events
GObject Documentation
The GObject “notify” signal
g_object_notify()
GParamSpec / struct GParamSpec
gtk_container_child_notify()
Signal Callback
Xubuntu: Disable Services
Disable blueman
Disable oneconf
sudo chmod a-x /usr/share/oneconf/oneconf-service sudo chmod a-x /usr/share/oneconf/oneconf-query sudo chmod a-x /usr/share/oneconf/oneconf-update
Ubuntu GNOME/GTK+ Development Packages
$ sudo apt-get install gnome-devel $ sudo apt-get install libgtk-3-dev
Ubuntu: Disable Guest Account
Ubuntu 12.x / 13.x
allow-guest=false
Ubuntu Tip:How to disable guest account in ubuntu 12.04(Precise)
Disable guest account in Ubuntu 13.04
Ubuntu 14.x
$ sudo sh -c 'printf "[SeatDefaults]\nallow-guest=false\n" > /usr/share/lightdm/lightdm.conf.d/50-no-guest.conf' $ sudo sh -c 'printf "[SeatDefaults]\ngreeter-show-remote-login=false\n" >/usr/share/lightdm/lightdm.conf.d/50-no-remote-login.conf'
