gtk3

Is there any way to use MVC pattern with Python3 and Gtk3? I found a library called pygtkmvc , but it's based on pygtk , that is, gtk2 . MVC is a pattern, you don't need a library in order to use it. It would go something like this contrived example: import gi gi.require_version('Gtk', '3.0') from gi.repository import Gtk, GObject class Model(object): @property def greetee(self): return 'World' class Controller(object): def __init__(self, model, view): self._model = model self._view = view self._view.connect('button-clicked', self._on_button_clicked) self._view.connect('destroy', Gtk.main_quit

I want to apply a certain behaviour to a label. When a lateral button is clicked, the corresponding label should rotate 90 degrees. It can be easily done in vala, but I can't discover the particular syntax on genie. The vala code I am trying to reproduce comes from elementary OS getting started guide : hello_button.clicked.connect(() => { hello_label.label = "Hello World!"; hello_button.sensitive = false; }); rotate_button.clicked.connect(() => { rotate_label.angle = 90; rotate_label.label = "Verbal"; rotate_button.sensitive = false; }); I actually managed to reproduce almost entirely the code

How to set color for one button in GTK+ GtkButton button8 { border-radius: 20; border-width: 1 1 1 1; font: Sans 16; color: black; background-image: -gtk-gradient (linear, left top, left bottom, color-stop(0.0,rgba(34,97,170,1)), color-stop(0.50,rgba(56,145,218,1)), color-stop(0.51,rgba(34,131,216,1)), color-stop(1.00,rgba(134,191,234,1))); } This css changes the color of al buttons in glade file.How should i change the css so that it affects only one button? gtk_widget_set_name (widget, "fooname"); or do the same in glade: then use something like GtkButton#fooname { border-radius: 20; ... }

I use GTK3 , codeblcks IDE, glade3 in windows 7... In my application i have a button which when clicked should open a gtk_file_chooser_dialog... But gives the fillowing error.. Glib-GIO-ERROR** : No GSettings schemas are installed on the system static void on_save_clicked(GtkWidget *widget,gpointer data) { GtkWidget *dialog; //dialog=gtk_file_chooser_dialog_new("Save it",GTK_WINDOW(gtk_builder_get_object(builder,"mainwindow")),GTK_FILE_CHOOSER_ACTION_SAVE,GTK_STOCK_OK,GTK_RESPONSE_OK,GTK_STOCK_CANCEL,GTK_RESPONSE_CANCEL); //dialog=GTK_FILE_CHOOSER_DIALOG(gtk_builder_get_object(builder,