Well I stand corrected, and pleasently so, I look forward to trying this.
Thanks!
SpoodyGoon
On 5/9/2010 3:29 PM, Adam Tauno Williams wrote:
On Sun, 2010-05-09 at 14:20 -0400, Andy York wrote:
Jacek,
In Gtk it is not common to alter the row color as it is controlled by
the currently installed theme. I have had minor success with altering
the appearance of widgets without changing the theme but it has been a
frustrating task to say the least.
Actually it is pretty straight forward. But you apply the change via
*cell* not *row*. For example I have a method like -
internal static void Effect(
Gtk.TreeModel _model,
Gtk.TreeIter _iter,
Gtk.CellRendererText _cell,
Whitemice.ZOGI.Task _task)
{
/* Apply the "green bar effect" to make reading easier for older
users */
if((_model.GetPath(_iter).Indices[0] % 2) == 1)
_cell.BackgroundGdk = GUI.ColorForKey("oddRowBackground");
else _cell.BackgroundGdk =
GUI.ColorForKey("evenRowBackground");;
/* Make overdue tasks red and upcoming tasks blue */
if ((DateTime.Today> _task.End)&& (_task.IsActive))
_cell.ForegroundGdk = GUI.ColorForKey("overdueForeground");
else if (_task.Start> DateTime.Today)
_cell.ForegroundGdk = GUI.ColorForKey("upcomingForeground");
else _cell.ForegroundGdk =
GUI.ColorForKey("defaultForeground");
} /* End Effect */
- which gets called by all of the render methods, such as -
internal static void RenderTitle(
Gtk.TreeViewColumn _column,
Gtk.CellRenderer _cell,
Gtk.TreeModel _model,
Gtk.TreeIter _iter)
{
Task task = IterTask(_model, _iter);
if(task == null)
return;
task = (Task)_model.GetValue(_iter, 0);
(_cell as Gtk.CellRendererText).Text = task.Name;
Effect(_model, _iter, (_cell as Gtk.CellRendererText), task);
} /* End RenderTitle */
This does mean you have to have render methods for every column; but,
honestly, you end up having to have lots of methods to do anything
useful with the horror that is TreeView anyway.
So you add columns to the TreeView like -
column = new Gtk.TreeViewColumn ();
column.Title = "Project";
column.Reorderable = true;
column.Resizable = true;
column.Clickable = true;
cell = new Gtk.CellRendererText ();
column.PackStart(cell, true);
column.SetCellDataFunc(cell,
new Gtk.TreeCellDataFunc(RenderProject));
_view.AppendColumn(column);
- then RenderProject calls Effect.
Verbose, and kinda ugly, but it works 100% of the time; and you avoid
the silly madness that is the whole theme-thing.
I'm certain there is a faster and more elegant way to do the same thing
via Hyena - by there is no documentation. :(
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