Ellipsize on a text column in a gtk iconview

[giutor (Giuseppe)]

How do I get ellipsize working? This is my code:

GtkCellRenderer *cell = gtk_cell_renderer_text_new();
	gtk_cell_layout_pack_start( GTK_CELL_LAYOUT(media_iconview), cell, TRUE );
	gtk_cell_layout_set_attributes( GTK_CELL_LAYOUT(media_iconview), cell,  "ellipsize", PANGO_ELLIPSIZE_END, NULL);
	g_object_set(cell, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
	gtk_icon_view_set_text_column(GTK_ICON_VIEW (media_iconview),1);

Sadly all the examples on Google are related to GtkTreeview.

[gwillems]

Hi,

The text will start ellipsize only once the widget reaches its maximum size.
So you probably need to add some kind of limitation somewhere.

For a CellRendererText, that’s probably be the max-width-chars property.

[giutor (Giuseppe)]

@gwillems

CellRendererText, that’s probably be the max-width-chars

gtk_cell_layout_set_attributes( GTK_CELL_LAYOUT(media_iconview), cell, “max-width-chars”, -1, NULL);

Thank you so much for replying. After adding that line I get:

(imagination:48756): Gtk-CRITICAL **: 14:49:49.358: gtk_cell_layout_add_attribute: assertion ‘column >= 0’ failed

And still no ellipsize. Do you have any other idea?

[gwillems]

I expect more something like:

g_object_set(cell, "max-width-chars", 20, NULL);

[giutor (Giuseppe)]

@gwillems

expect more something like:

g_object_set(cell, "max-width-chars", 20, NULL);

I added this line, no messages in the console but the text is still not ellipsized. am I missing some specific setting to gtk_iconview? Do you know any software which uses iconview with a text column? I tried to look inside Nemo file manager sources but with no luck.

I do appreciate your help.

[gwillems]

Hm, I’m a bit confused…

Why do you create a new CellRendererText and at the same time use the existing one with gtk_icon_view_set_text_column?

If you use gtk_icon_view_set_text_column, then get the existing renderer with Gtk.CellLayout.get_cells and apply the ellipsize and max-width-chars
to it.

Otherwise, is you use your own renderer, don’t call gtk_icon_view_set_text_column but instead use gtk_cell_layout_set_attributes to link the text to the appropriate model’s column.

GtkCellRenderer *cell = gtk_cell_renderer_text_new();
gtk_cell_layout_pack_end( GTK_CELL_LAYOUT(media_iconview), cell, TRUE );
gtk_cell_layout_set_attributes( GTK_CELL_LAYOUT(media_iconview), cell,  "text", 1, NULL);
g_object_set(cell, "ellipsize", PANGO_ELLIPSIZE_END, "max-width-chars", 20, NULL);

[gwillems]

If it still doesn’t work, you can add a new column to your model and use it to store a manually ellipsized string.

Then pass this column index to gtk_icon_view_set_text_column, so the iconview can use it.

[giutor (Giuseppe)]

Your code worked like a charm! You are a genious! Thank you for the patience and the kind explanation, I learnt something new about cell renderers. Would you like to help in your spare time to the development of my slideshow maker? I have been developing it since 2009. If you want to give a look it’s here: https://github.com/colossus73/imagination