在执行CellRenderer
时可以提供Gtk::CellRendererText
(append_column
),在其中我可以使用property_weight
来设置权重。
然而,这会改变整个专栏,我的目标是能够使单个项目变为粗体。是否有内置的方法来执行此操作?
要求是能够随时将项目从常规文本更改为粗体。
所以,如果我有:
Gtk::TreeModel::Row row = *(treeModel->append());
row[treeColumns.id] = 1;
row[treeColumns.name] = "[one]";
Gtk::TreeModel::Row childrow = *(treeModel->append(row.children()));
childrow[treeColumns.id] = 11;
childrow[treeColumns.name] = "<b>eleven</b>";
childrow = *(treeModel->append(row.children()));
childrow[treeColumns.id] = 12;
childrow[treeColumns.name] = "twelve";
row = *(treeModel->append());
row[treeColumns.id] = 2;
row[treeColumns.name] = "two";
//Add the TreeView's view columns:
treeView->append_column("Name", treeColumns.name);
// treeView->append_column("ID", treeColumns.id);
treeView->expand_all();
然后我希望元素编号11变为粗体(它目前只有HTML标记以突出显示该点),我将如何做到这一点?
答案 0 :(得分:2)
如果您指定自己的CellRenderer,那么您可能还想通过set_cell_data_func()指定您自己的cell_data_func: https://developer.gnome.org/gtkmm/stable/classGtk_1_1TreeViewColumn.html#a765296845c9e9757ba405becbbc13d96
在该回调中,您可以更改单元格的属性。它看起来像这样:
MyTreeView::MyTreeView()
{
...
Gtk::TreeViewColumn view_column = Gtk::manage(new Gtk::TreeViewColumn(_("Name")));
Gtk::CellRendererText cell = Gtk::manage(new Gtk::CellRendererText());
view_column->pack_start(*cell, false);
view_column->set_cell_data_func(*cell, sigc::mem_fun(*this, &MyTreeView::on_cell_data_name));
append_column(view_column);
...
}
void MyTreeView::on_cell_data_name(
Gtk::CellRenderer* renderer,
const Gtk::TreeModel::iterator& iter)
{
//Get the value from the model and show it appropriately in the view:
Gtk::TreeModel::Row row = *iter;
int id = row[m_columns.m_col_id];
Glib::ustring name = row[m_columns.m_col_name];
if (id == SOME_MAGIC_NUMBER)
name = "<b>" + name + "</b">;
Gtk::CellRendererText* text_renderer = dynamic_cast<Gtk::CellRendererText*>(renderer);
if(text_renderer)
text_renderer.property_markup() = name;
}
}
您可能更喜欢使用单元格渲染器的字体属性,而不是使用标记。