Re: Text widget: colors

["Michael J. Hammel" <mjhammel graphics-muse org>]

Thus spoke Gernot Kerschbaumer
> i wonder how to set the background color of a text widget. when i launch

You need to copy the style, then change the base[] color, something like this:

style1 = gtk_widget_get_style( pn->pn_textwidget );
style2 = gtk_style_copy( style1 );

colormap = gdk_window_get_colormap (toplevel->window);

gdk_color.red = (guint16)(item->color[0]*65535.0);
gdk_color.green = (guint16)(item->color[1]*65535.0);
gdk_color.blue = (guint16)(item->color[2]*65535.0);
gdk_color_alloc (colormap, &gdk_color);

/* Set the background of the text widget */
style2->base[GTK_STATE_NORMAL].red = gdk_color.red;
style2->base[GTK_STATE_NORMAL].green = gdk_color.green;
style2->base[GTK_STATE_NORMAL].blue = gdk_color.blue;

/* Set th background of the text to the same color as the widget */
style2->bg[GTK_STATE_NORMAL].red = gdk_color.red;
style2->bg[GTK_STATE_NORMAL].green = gdk_color.green;
style2->bg[GTK_STATE_NORMAL].blue = gdk_color.blue;

gtk_widget_set_style(pn->pn_textwidget, style2);

gdk_window_set_background(pn->pn_scrollwidget->window, &gdk_color);

This code is taken from XNotesPlus, where I set the background of different
notes based on which project the notes belong to.  Note that you have to
set both the text widget background (with base[]) and the text background
(bg[]) or you might not get what you were expecting.

This doesn't work well in Gtk 1.0 because the base[] color setting is not
used, but it works just fine in 1.2.
-- 
Michael J. Hammel           |
The Graphics Muse           |  Someday we'll look back on this and plow into a
mjhammel@graphics-muse.org  |  parked car. -- Dilbert
http://www.graphics-muse.org