/*
* Copyright 2012 Bastian Winkler <buz@netbuz.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU Lesser General Public License,
* version 2.1, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
* more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
* Boston, MA 02111-1307, USA.
*
*/
#include <stdlib.h>
#include <clutter/clutter.h>
#define INSTRUCTIONS \
"Press r\t\342\236\236\tSwitch row homogeneous\n" \
"Press c\t\342\236\236\tSwitch column homogeneous\n" \
"Press s\t\342\236\236\tIncrement spacing (up to 12px)\n" \
"Press q\t\342\236\236\tQuit\n\n" \
"Left/right click\t\t\342\236\236\tChange actor align\n" \
"Shift left/right click\t\342\236\236\tChange actor expand"
static gboolean random_size = FALSE;
static gboolean random_align = FALSE;
static gboolean default_expand = TRUE;
static gboolean use_box = FALSE;
static gboolean is_vertical = FALSE;
static GOptionEntry entries[] = {
{
"random-size", 'r',
0,
G_OPTION_ARG_NONE,
&random_size,
"Randomly size the rectangles", NULL
},
{
"random-align", 'f',
0,
G_OPTION_ARG_NONE,
&random_align,
"Randomly set the align values", NULL
},
{
"no-expand", 'e',
G_OPTION_FLAG_REVERSE,
G_OPTION_ARG_NONE,
&default_expand,
"Don't expand all actors by default", NULL,
},
{
"box", 'b',
0,
G_OPTION_ARG_NONE,
&use_box,
"Use the layout in a ClutterBoxLayout style", NULL
},
{
"vertical", 'v',
0,
G_OPTION_ARG_NONE,
&is_vertical,
"Use a vertical orientation when used with --box", NULL
},
{ NULL }
};
static gboolean
button_release_cb (ClutterActor *actor,
ClutterEvent *event,
gpointer data)
{
ClutterActorAlign x_align, y_align;
gboolean x_expand, y_expand;
g_object_get (actor,
"x-align", &x_align,
"y-align", &y_align,
"x-expand", &x_expand,
"y-expand", &y_expand,
NULL);
switch (clutter_event_get_button (event))
{
case CLUTTER_BUTTON_PRIMARY:
if (clutter_event_has_shift_modifier (event))
x_expand = !x_expand;
else
{
if (x_align < 3)
x_align += 1;
else
x_align = 0;
}
break;
case CLUTTER_BUTTON_SECONDARY:
if (clutter_event_has_shift_modifier (event))
y_expand = !y_expand;
else
{
if (y_align < 3)
y_align += 1;
else
y_align = 0;
}
break;
default:
return FALSE;
}
g_object_set (actor,
"x-align", x_align,
"y-align", y_align,
"x-expand", x_expand,
"y-expand", y_expand,
NULL);
return TRUE;
}
static const gchar *
get_align_name (ClutterActorAlign align)
{
switch (align)
{
case CLUTTER_ACTOR_ALIGN_FILL:
return "fill";
case CLUTTER_ACTOR_ALIGN_START:
return "start";
case CLUTTER_ACTOR_ALIGN_CENTER:
return "center";
case CLUTTER_ACTOR_ALIGN_END:
return "end";
default:
g_assert_not_reached ();
}
}
static void
changed_cb (ClutterActor *actor,
GParamSpec *pspec,
ClutterActor *text)
{
ClutterActorAlign x_align, y_align;
ClutterActor *box;
ClutterLayoutManager *layout;
ClutterLayoutMeta *meta;
gboolean x_expand, y_expand;
gchar *label;
gint left, top, width, height;
box = clutter_actor_get_parent (actor);
layout = clutter_actor_get_layout_manager (box);
meta = clutter_layout_manager_get_child_meta (layout,
CLUTTER_CONTAINER (box),
actor);
g_object_get (actor,
"x-align", &x_align,
"y-align", &y_align,
"x-expand", &x_expand,
"y-expand", &y_expand,
NULL);
g_object_get (meta,
"left-attach", &left,
"top-attach", &top,
"width", &width,
"height", &height,
NULL);
label = g_strdup_printf ("attach: %d,%d\n"
"span: %d,%d\n"
"expand: %d,%d\n"
"align: %s,%s",
left, top, width, height,
x_expand, y_expand,
get_align_name (x_align),
get_align_name (y_align));
clutter_text_set_text (CLUTTER_TEXT (text), label);
g_free (label);
}
static void
add_actor (ClutterActor *box,
gint left,
gint top,
gint width,
gint height)
{
ClutterActor *rect, *text;
ClutterColor color;
ClutterLayoutManager *layout;
clutter_color_from_hls (&color,
g_random_double_range (0.0, 360.0),
0.5,
0.5);
color.alpha = 255;
layout = clutter_bin_layout_new (CLUTTER_BIN_ALIGNMENT_CENTER,
CLUTTER_BIN_ALIGNMENT_CENTER);
rect = clutter_actor_new ();
clutter_actor_set_layout_manager (rect, layout);
clutter_actor_set_background_color (rect, &color);
clutter_actor_set_reactive (rect, TRUE);
if (random_size)
clutter_actor_set_size (rect,
g_random_int_range (40, 80),
g_random_int_range (40, 80));
else
clutter_actor_set_size (rect, 60, 60);
clutter_actor_set_x_expand (rect, default_expand);
clutter_actor_set_y_expand (rect, default_expand);
if (!default_expand)
{
clutter_actor_set_x_align (rect, CLUTTER_ACTOR_ALIGN_CENTER);
clutter_actor_set_y_align (rect, CLUTTER_ACTOR_ALIGN_CENTER);
}
if (random_align)
{
clutter_actor_set_x_align (rect, g_random_int_range (0, 3));
clutter_actor_set_y_align (rect, g_random_int_range (0, 3));
}
text = clutter_text_new_with_text ("Sans 8px", NULL);
clutter_text_set_line_alignment (CLUTTER_TEXT (text),
PANGO_ALIGN_CENTER);
clutter_actor_add_child (rect, text);
g_signal_connect (rect, "button-release-event",
G_CALLBACK (button_release_cb), NULL);
g_signal_connect (rect, "notify::x-expand",
G_CALLBACK (changed_cb), text);
g_signal_connect (rect, "notify::y-expand",
G_CALLBACK (changed_cb), text);
g_signal_connect (rect, "notify::x-align",
G_CALLBACK (changed_cb), text);
g_signal_connect (rect, "notify::y-align",
G_CALLBACK (changed_cb), text);
layout = clutter_actor_get_layout_manager (box);
if (use_box)
clutter_actor_add_child (box, rect);
else
clutter_grid_layout_attach (CLUTTER_GRID_LAYOUT (layout), rect,
left, top, width, height);
changed_cb (rect, NULL, text);
}
static gboolean
key_release_cb (ClutterActor *stage,
ClutterEvent *event,
ClutterActor *box)
{
ClutterGridLayout *layout;
gboolean toggle;
guint spacing;
layout = CLUTTER_GRID_LAYOUT (clutter_actor_get_layout_manager (box));
switch (clutter_event_get_key_symbol (event))
{
case CLUTTER_KEY_c:
toggle = clutter_grid_layout_get_column_homogeneous (layout);
clutter_grid_layout_set_column_homogeneous (layout, !toggle);
break;
case CLUTTER_KEY_r:
toggle = clutter_grid_layout_get_row_homogeneous (layout);
clutter_grid_layout_set_row_homogeneous (layout, !toggle);
break;
case CLUTTER_KEY_s:
spacing = clutter_grid_layout_get_column_spacing (layout);
if (spacing < 12)
spacing += 1;
else
spacing = 0;
clutter_grid_layout_set_column_spacing (layout, spacing);
clutter_grid_layout_set_row_spacing (layout, spacing);
break;
case CLUTTER_KEY_q:
clutter_main_quit ();
break;
default:
return FALSE;
}
return TRUE;
}
int
main (int argc, char *argv[])
{
ClutterActor *stage, *box, *instructions;
ClutterLayoutManager *stage_layout, *grid_layout;
GError *error = NULL;
if (clutter_init_with_args (&argc, &argv,
NULL,
entries,
NULL,
&error) != CLUTTER_INIT_SUCCESS)
{
g_print ("Unable to run grid-layout: %s", error->message);
g_error_free (error);
return EXIT_FAILURE;
}
stage = clutter_stage_new ();
clutter_stage_set_user_resizable (CLUTTER_STAGE (stage), TRUE);
stage_layout = clutter_box_layout_new ();
clutter_box_layout_set_orientation (CLUTTER_BOX_LAYOUT (stage_layout),
CLUTTER_ORIENTATION_VERTICAL);
clutter_actor_set_layout_manager (stage, stage_layout);
grid_layout = clutter_grid_layout_new ();
if (is_vertical)
clutter_grid_layout_set_orientation (CLUTTER_GRID_LAYOUT (grid_layout),
CLUTTER_ORIENTATION_VERTICAL);
box = clutter_actor_new ();
clutter_actor_set_background_color (box, CLUTTER_COLOR_LightGray);
clutter_actor_set_x_expand (box, TRUE);
clutter_actor_set_y_expand (box, TRUE);
clutter_actor_set_layout_manager (box, grid_layout);
clutter_box_layout_pack (CLUTTER_BOX_LAYOUT (stage_layout), box,
TRUE, TRUE, TRUE,
CLUTTER_BOX_ALIGNMENT_CENTER,
CLUTTER_BOX_ALIGNMENT_CENTER);
add_actor (box, 0, 0, 1, 1);
add_actor (box, 1, 0, 1, 1);
add_actor (box, 2, 0, 1, 1);
add_actor (box, 0, 1, 1, 1);
add_actor (box, 1, 1, 2, 1);
add_actor (box, 0, 2, 3, 1);
add_actor (box, 0, 3, 2, 2);
add_actor (box, 2, 3, 1, 1);
add_actor (box, 2, 4, 1, 1);
instructions = clutter_text_new_with_text ("Sans 12px", INSTRUCTIONS);
clutter_actor_set_margin_top (instructions, 4);
clutter_actor_set_margin_left (instructions, 4);
clutter_actor_set_margin_bottom (instructions, 4);
clutter_box_layout_pack (CLUTTER_BOX_LAYOUT (stage_layout), instructions,
FALSE, TRUE, FALSE,
CLUTTER_BOX_ALIGNMENT_START,
CLUTTER_BOX_ALIGNMENT_CENTER);
g_signal_connect (stage, "destroy",
G_CALLBACK (clutter_main_quit), NULL);
g_signal_connect (stage, "key-release-event",
G_CALLBACK (key_release_cb), box);
clutter_actor_show (stage);
clutter_main ();
return 0;
}