qulogic/libgnt

Make the combobox a tiny bit friendlier.
v2.7.3
2010-07-05, Sadrul Habib Chowdhury
ac8d8a62c098
Make the combobox a tiny bit friendlier.

Pressing the first letter of an item will now jump to that item (and
popup the dropdown first if necessary). Add some API in libgnt in the
process.
/**
* GNT - The GLib Ncurses Toolkit
*
* GNT is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*/
#include "gntinternal.h"
#include "gntline.h"
enum
{
PROP_0,
PROP_VERTICAL
};
enum
{
SIGS = 1,
};
static GntWidgetClass *parent_class = NULL;
static void
gnt_line_draw(GntWidget *widget)
{
GntLine *line = GNT_LINE(widget);
if (line->vertical)
mvwvline(widget->window, 1, 0, ACS_VLINE | gnt_color_pair(GNT_COLOR_NORMAL),
widget->priv.height - 2);
else
mvwhline(widget->window, 0, 1, ACS_HLINE | gnt_color_pair(GNT_COLOR_NORMAL),
widget->priv.width - 2);
}
static void
gnt_line_size_request(GntWidget *widget)
{
if (GNT_LINE(widget)->vertical)
{
widget->priv.width = 1;
widget->priv.height = 5;
}
else
{
widget->priv.width = 5;
widget->priv.height = 1;
}
}
static void
gnt_line_map(GntWidget *widget)
{
if (widget->priv.width == 0 || widget->priv.height == 0)
gnt_widget_size_request(widget);
GNTDEBUG;
}
static void
gnt_line_set_property(GObject *obj, guint prop_id, const GValue *value,
GParamSpec *spec)
{
GntLine *line = GNT_LINE(obj);
switch (prop_id) {
case PROP_VERTICAL:
line->vertical = g_value_get_boolean(value);
if (line->vertical) {
GNT_WIDGET_SET_FLAGS(line, GNT_WIDGET_GROW_Y);
} else {
GNT_WIDGET_SET_FLAGS(line, GNT_WIDGET_GROW_X);
}
break;
default:
break;
}
}
static void
gnt_line_get_property(GObject *obj, guint prop_id, GValue *value,
GParamSpec *spec)
{
GntLine *line = GNT_LINE(obj);
switch (prop_id) {
case PROP_VERTICAL:
g_value_set_boolean(value, line->vertical);
break;
default:
break;
}
}
static void
gnt_line_class_init(GntLineClass *klass)
{
GObjectClass *gclass = G_OBJECT_CLASS(klass);
parent_class = GNT_WIDGET_CLASS(klass);
parent_class->draw = gnt_line_draw;
parent_class->map = gnt_line_map;
parent_class->size_request = gnt_line_size_request;
gclass->set_property = gnt_line_set_property;
gclass->get_property = gnt_line_get_property;
g_object_class_install_property(gclass,
PROP_VERTICAL,
g_param_spec_boolean("vertical", "Vertical",
"Whether it's a vertical line or a horizontal one.",
TRUE,
G_PARAM_READWRITE|G_PARAM_STATIC_NAME|G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB
)
);
}
static void
gnt_line_init(GTypeInstance *instance, gpointer class)
{
GntWidget *widget = GNT_WIDGET(instance);
GNT_WIDGET_SET_FLAGS(widget, GNT_WIDGET_NO_SHADOW | GNT_WIDGET_NO_BORDER);
widget->priv.minw = 1;
widget->priv.minh = 1;
GNTDEBUG;
}
/******************************************************************************
* GntLine API
*****************************************************************************/
GType
gnt_line_get_gtype(void)
{
static GType type = 0;
if(type == 0)
{
static const GTypeInfo info = {
sizeof(GntLineClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc)gnt_line_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof(GntLine),
0, /* n_preallocs */
gnt_line_init, /* instance_init */
NULL /* value_table */
};
type = g_type_register_static(GNT_TYPE_WIDGET,
"GntLine",
&info, 0);
}
return type;
}
GntWidget *gnt_line_new(gboolean vertical)
{
GntWidget *widget = g_object_new(GNT_TYPE_LINE, "vertical", vertical, NULL);
return widget;
}