Changing font color on a column in treeview gtk

问题

I've a treeview and I want to change the text color on one column.

How could I do this??

thanks

回答1:

(Refering to the standard C methods, haven't done much with Vala so far)

There are several ways to achieve this. You can change the settings of the text cellrenderer (GtkCellRendererText), an example would be

g_object_set (your_text_cell_renderer, "foreground", 
              "red", "foreground-set", TRUE);

Another way is using markup:

highlighted_txt = g_strconcat ("<span background='yellow' foreground='black'>", 
                               my_text, "</span>", NULL);
g_object_set (your_text_cell_renderer, "markup", highlighted_txt, NULL);

To change the font color of each column individually on certain conditions, gtk_tree_view_insert_column_with_data_func or gtk_tree_view_column_set_cell_data_func are used, they are described in the online documentation for GtkTreeView. You can use different text cell renderers for each column to keep settings separate.

It can be done in a way similar like this:

for (columns_cnt = 0; columns_cnt < NUMBER_OF_COLUMNS; columns_cnt++) {
  text_renderer = gtk_cell_renderer_text_new ();
  columns[columns_cnt] = gtk_tree_view_column_new_with_attributes
                         (column_header_txt[columns_cnt], text_renderer, 
                         "text", columns_cnt, NULL);
  gtk_tree_view_column_set_cell_data_func (columns[columns_cnt], text_renderer, 
                                           (GtkTreeCellDataFunc) 
                                           set_column_attributes, NULL, NULL);
}

...

static void set_column_attributes (GtkTreeViewColumn *cell_column, 
                                   GtkCellRenderer   *txt_renderer,
                                   GtkTreeModel      *cell_model, 
                                   GtkTreeIter       *cell_iter, 
                                   gpointer          pointer)
{
 // Use g_object_set or something else here.
}

回答2:

First, you have to set up a column in your model describing the color for each row. Then, you use gtk_tree_view_insert_column_with_attributes, to set the foreground attribute to the position of the color column.

来源：https://stackoverflow.com/questions/14006658/changing-font-color-on-a-column-in-treeview-gtk

标签

gtk

cellrenderer

gtktreeview