314 lines
8.9 KiB
C
314 lines
8.9 KiB
C
/*
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* Copyright 2009 Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU Lesser General Public License,
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* version 2.1, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
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* more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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* Boston, MA 02111-1307, USA.
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*
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*/
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#include <stdlib.h>
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#include <clutter/clutter.h>
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#define INSTRUCTIONS \
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"Press v\t\342\236\236\tSwitch horizontal/vertical\n" \
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"Press h\t\342\236\236\tToggle homogeneous\n" \
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"Press p\t\342\236\236\tToggle pack start/end\n" \
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"Press s\t\342\236\236\tIncrement spacing (up to 12px)\n" \
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"Press +\t\342\236\236\tAdd a new actor\n" \
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"Press a\t\342\236\236\tToggle animations\n" \
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"Press q\t\342\236\236\tQuit"
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static const gchar *
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get_align_name (ClutterActorAlign align)
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{
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switch (align)
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{
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case CLUTTER_ACTOR_ALIGN_FILL:
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return "fill";
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case CLUTTER_ACTOR_ALIGN_START:
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return "start";
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case CLUTTER_ACTOR_ALIGN_CENTER:
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return "center";
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case CLUTTER_ACTOR_ALIGN_END:
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return "end";
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default:
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g_assert_not_reached ();
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}
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}
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static gboolean
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button_release_cb (ClutterActor *rect,
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ClutterEvent *event,
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gpointer user_data)
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{
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ClutterActorAlign x_align, y_align;
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gboolean x_expand, y_expand;
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g_object_get (rect,
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"x-align", &x_align,
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"y-align", &y_align,
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"x-expand", &x_expand,
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"y-expand", &y_expand,
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NULL);
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switch (clutter_event_get_button (event))
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{
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case CLUTTER_BUTTON_PRIMARY:
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if (clutter_event_has_shift_modifier (event))
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{
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if (y_align < 3)
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y_align += 1;
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else
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y_align = 0;
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break;
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}
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else
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{
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if (x_align < 3)
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x_align += 1;
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else
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x_align = 0;
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}
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break;
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case CLUTTER_BUTTON_SECONDARY:
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if (clutter_event_has_shift_modifier (event))
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y_expand = !y_expand;
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else
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x_expand = !x_expand;
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break;
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default:
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break;
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}
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g_object_set (rect,
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"x-align", x_align,
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"y-align", y_align,
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"x-expand", x_expand,
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"y-expand", y_expand,
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NULL);
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return TRUE;
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}
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static void
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changed_cb (ClutterActor *actor,
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GParamSpec *pspec,
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ClutterActor *text)
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{
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ClutterActorAlign x_align, y_align;
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gboolean x_expand, y_expand;
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gchar *label;
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g_object_get (actor,
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"x-align", &x_align,
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"y-align", &y_align,
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"x-expand", &x_expand,
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"y-expand", &y_expand,
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NULL);
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label = g_strdup_printf ("%d,%d\n"
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"%s\n%s",
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x_expand, y_expand,
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get_align_name (x_align),
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get_align_name (y_align));
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clutter_text_set_text (CLUTTER_TEXT (text), label);
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g_free (label);
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}
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static void
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add_actor (ClutterActor *box,
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gint position)
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{
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ClutterActor *rect, *text;
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ClutterColor color;
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ClutterLayoutManager *layout;
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clutter_color_from_hls (&color,
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g_random_double_range (0.0, 360.0),
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0.5,
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0.5);
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color.alpha = 255;
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layout = clutter_bin_layout_new (CLUTTER_BIN_ALIGNMENT_CENTER,
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CLUTTER_BIN_ALIGNMENT_CENTER);
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rect = clutter_actor_new ();
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clutter_actor_set_layout_manager (rect, layout);
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clutter_actor_set_background_color (rect, &color);
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clutter_actor_set_reactive (rect, TRUE);
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clutter_actor_set_size (rect, 32, 64);
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clutter_actor_set_x_expand (rect, TRUE);
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clutter_actor_set_y_expand (rect, TRUE);
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clutter_actor_set_x_align (rect, CLUTTER_ACTOR_ALIGN_CENTER);
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clutter_actor_set_y_align (rect, CLUTTER_ACTOR_ALIGN_CENTER);
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text = clutter_text_new_with_text ("Sans 8px", NULL);
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clutter_text_set_line_alignment (CLUTTER_TEXT (text),
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PANGO_ALIGN_CENTER);
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clutter_actor_add_child (rect, text);
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g_signal_connect (rect, "button-release-event",
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G_CALLBACK (button_release_cb), NULL);
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g_signal_connect (rect, "notify::x-expand",
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G_CALLBACK (changed_cb), text);
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g_signal_connect (rect, "notify::y-expand",
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G_CALLBACK (changed_cb), text);
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g_signal_connect (rect, "notify::x-align",
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G_CALLBACK (changed_cb), text);
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g_signal_connect (rect, "notify::y-align",
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G_CALLBACK (changed_cb), text);
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changed_cb (rect, NULL, text);
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clutter_actor_insert_child_at_index (box, rect, position);
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}
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static gboolean
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key_release_cb (ClutterActor *stage,
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ClutterEvent *event,
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ClutterActor *box)
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{
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ClutterBoxLayout *layout;
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gboolean toggle;
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guint spacing;
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layout = CLUTTER_BOX_LAYOUT (clutter_actor_get_layout_manager (box));
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switch (clutter_event_get_key_symbol (event))
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{
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case CLUTTER_KEY_a:
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{
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ClutterActorIter iter;
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ClutterActor *child;
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clutter_actor_iter_init (&iter, box);
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while (clutter_actor_iter_next (&iter, &child))
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{
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guint duration;
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duration = clutter_actor_get_easing_duration (child);
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if (duration != 0)
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duration = 0;
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else
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duration = 250;
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clutter_actor_set_easing_duration (child, duration);
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}
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}
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break;
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case CLUTTER_KEY_v:
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{
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ClutterOrientation orientation;
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orientation = clutter_box_layout_get_orientation (layout);
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if (orientation == CLUTTER_ORIENTATION_HORIZONTAL)
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orientation = CLUTTER_ORIENTATION_VERTICAL;
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else
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orientation = CLUTTER_ORIENTATION_HORIZONTAL;
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clutter_box_layout_set_orientation (layout, orientation);
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}
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break;
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case CLUTTER_KEY_h:
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toggle = clutter_box_layout_get_homogeneous (layout);
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clutter_box_layout_set_homogeneous (layout, !toggle);
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break;
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case CLUTTER_KEY_p:
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toggle = clutter_box_layout_get_pack_start (layout);
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clutter_box_layout_set_pack_start (layout, !toggle);
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break;
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case CLUTTER_KEY_s:
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spacing = clutter_box_layout_get_spacing (layout);
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if (spacing > 12)
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spacing = 0;
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else
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spacing++;
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clutter_box_layout_set_spacing (layout, spacing);
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break;
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case CLUTTER_KEY_plus:
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add_actor (box, g_random_int_range (0, clutter_actor_get_n_children (box)));
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break;
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case CLUTTER_KEY_q:
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clutter_main_quit ();
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break;
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default:
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return FALSE;
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}
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return TRUE;
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}
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int
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main (int argc, char *argv[])
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{
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ClutterActor *stage, *box, *instructions;
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ClutterLayoutManager *layout;
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gint i;
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if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
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return EXIT_FAILURE;
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stage = clutter_stage_new ();
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clutter_stage_set_title (CLUTTER_STAGE (stage), "Box Layout");
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clutter_stage_set_user_resizable (CLUTTER_STAGE (stage), TRUE);
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/* make the stage a vbox */
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layout = clutter_box_layout_new ();
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clutter_box_layout_set_orientation (CLUTTER_BOX_LAYOUT (layout),
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CLUTTER_ORIENTATION_VERTICAL);
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clutter_actor_set_layout_manager (stage, layout);
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box = clutter_actor_new ();
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clutter_actor_set_background_color (box, CLUTTER_COLOR_LightGray);
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clutter_actor_set_x_expand (box, TRUE);
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clutter_actor_set_y_expand (box, TRUE);
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layout = clutter_box_layout_new ();
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clutter_actor_set_layout_manager (box, layout);
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clutter_actor_add_child (stage, box);
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instructions = clutter_text_new_with_text ("Sans 12px", INSTRUCTIONS);
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clutter_actor_set_x_expand (instructions, TRUE);
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clutter_actor_set_y_expand (instructions, FALSE);
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clutter_actor_set_x_align (instructions, CLUTTER_ACTOR_ALIGN_START);
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clutter_actor_set_margin_top (instructions, 4);
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clutter_actor_set_margin_left (instructions, 4);
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clutter_actor_set_margin_bottom (instructions, 4);
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clutter_actor_add_child (stage, instructions);
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for (i = 0; i < 5; i++)
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add_actor (box, i);
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g_signal_connect (stage, "destroy",
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G_CALLBACK (clutter_main_quit), NULL);
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g_signal_connect (stage, "key-release-event",
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G_CALLBACK (key_release_cb), box);
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clutter_actor_show (stage);
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clutter_main ();
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return EXIT_SUCCESS;
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}
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