/* * Copyright 2009 Intel Corporation. * * 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 #include #include #include #include #include "pango/cogl-pango.h" #define INSTRUCTIONS \ "Press v\t\342\236\236\tSwitch horizontal/vertical\n" \ "Press h\t\342\236\236\tSwitch homogeneous\n" \ "Press p\t\342\236\236\tSwitch pack start/end\n" \ "Press s\t\342\236\236\tIncrement spacing (up to 12px)\n" \ "Press a\t\342\236\236\tSwitch animations on/off\n" \ "Press q\t\342\236\236\tQuit" static ClutterActor *hover_actor = NULL; static ClutterActor *box = NULL; static ClutterActor *label = NULL; static guint last_index = 0; static void on_paint (ClutterActor *actor, gpointer user_data) { guint index_ = GPOINTER_TO_UINT (user_data); gchar *text = g_strdup_printf ("%u", index_); ClutterActorBox alloc = { 0, }; CoglColor color; gint layout_width, layout_height; gfloat width, height; PangoLayout *layout; clutter_actor_get_allocation_box (actor, &alloc); clutter_actor_box_get_size (&alloc, &width, &height); layout = clutter_actor_create_pango_layout (actor, text); pango_layout_get_size (layout, &layout_width, &layout_height); cogl_color_init_from_4ub (&color, 0, 0, 0, 255); cogl_pango_render_layout (layout, (width - (layout_width / 1024)) / 2, (height - (layout_height / 1024)) / 2, &color, 0); g_object_unref (layout); g_free (text); } static void enter_event (ClutterActor *actor, ClutterEvent *event, gpointer data) { clutter_rectangle_set_border_width (CLUTTER_RECTANGLE (actor), 2); clutter_rectangle_set_border_color (CLUTTER_RECTANGLE (actor), CLUTTER_COLOR_Black); hover_actor = actor; } static void leave_event (ClutterActor *actor, ClutterEvent *event, gpointer data) { clutter_rectangle_set_border_width (CLUTTER_RECTANGLE (actor), 0); hover_actor = NULL; } static gboolean button_release_event (ClutterActor *actor, ClutterEvent *event, ClutterBoxLayout *layout) { gboolean xfill, yfill; ClutterBoxAlignment xalign, yalign; gint button; button = clutter_event_get_button (event); if (button == 1) { clutter_box_layout_get_fill (layout, actor, &xfill, &yfill); clutter_box_layout_set_fill (layout, actor, xfill ? FALSE : TRUE, yfill ? FALSE : TRUE); } else { clutter_box_layout_get_alignment (layout, actor, &xalign, &yalign); if (xalign < 2) xalign += 1; else xalign = 0; if (yalign < 2) yalign += 1; else yalign = 0; clutter_box_layout_set_alignment (layout, actor, xalign, yalign); } return TRUE; } static void add_actor (ClutterBoxLayout *layout, guint index_) { ClutterActor *rect; static gboolean expand = TRUE; ClutterColor color; clutter_color_from_hls (&color, g_random_double_range (0.0, 360.0), 0.5, 0.5); color.alpha = 255; rect = clutter_rectangle_new_with_color (&color); clutter_actor_set_size (rect, 32, 64); clutter_box_layout_pack (layout, rect, expand, FALSE, /* x-fill */ FALSE, /* y-fill */ CLUTTER_BOX_ALIGNMENT_CENTER, CLUTTER_BOX_ALIGNMENT_CENTER); clutter_actor_set_reactive (rect, TRUE); g_signal_connect_after (rect, "paint", G_CALLBACK (on_paint), GUINT_TO_POINTER (index_)); g_signal_connect (rect, "enter-event", G_CALLBACK (enter_event), NULL); g_signal_connect (rect, "leave-event", G_CALLBACK (leave_event), NULL); g_signal_connect (rect, "button-release-event", G_CALLBACK (button_release_event), layout); expand = !expand; } static gboolean key_release_cb (ClutterActor *actor, ClutterEvent *event, ClutterBoxLayout *layout) { gboolean toggle; guint spacing; switch (clutter_event_get_key_symbol (event)) { case CLUTTER_KEY_a: toggle = clutter_box_layout_get_use_animations (layout); clutter_box_layout_set_use_animations (layout, !toggle); break; case CLUTTER_KEY_v: toggle = clutter_box_layout_get_vertical (layout); clutter_box_layout_set_vertical (layout, !toggle); break; case CLUTTER_KEY_h: toggle = clutter_box_layout_get_homogeneous (layout); clutter_box_layout_set_homogeneous (layout, !toggle); break; case CLUTTER_KEY_p: toggle = clutter_box_layout_get_pack_start (layout); clutter_box_layout_set_pack_start (layout, !toggle); break; case CLUTTER_KEY_s: spacing = clutter_box_layout_get_spacing (layout); if (spacing > 12) spacing = 0; else spacing++; clutter_box_layout_set_spacing (layout, spacing); break; case CLUTTER_KEY_plus: add_actor (layout, last_index++); break; case CLUTTER_KEY_q: clutter_main_quit (); break; default: return FALSE; } return TRUE; } static void stage_size_changed_cb (ClutterActor *stage, const ClutterActorBox *allocation, ClutterAllocationFlags flags, gpointer dummy G_GNUC_UNUSED) { gfloat width, height; clutter_actor_box_get_size (allocation, &width, &height); clutter_actor_set_size (box, width - 100, height - 100); clutter_actor_set_y (label, height - clutter_actor_get_height (label) - 8); } G_MODULE_EXPORT int test_box_layout_main (int argc, char *argv[]) { ClutterActor *stage; ClutterLayoutManager *layout; gint i; if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS) return 1; stage = clutter_stage_get_default (); clutter_stage_set_title (CLUTTER_STAGE (stage), "Box Layout"); clutter_stage_set_user_resizable (CLUTTER_STAGE (stage), TRUE); clutter_actor_set_size (stage, 640, 480); layout = clutter_box_layout_new (); box = clutter_box_new (layout); clutter_container_add_actor (CLUTTER_CONTAINER (stage), box); for (i = 0; i < 5; i++) add_actor (CLUTTER_BOX_LAYOUT (layout), last_index++); g_signal_connect (stage, "key-release-event", G_CALLBACK (key_release_cb), layout); g_signal_connect (stage, "allocation-changed", G_CALLBACK (stage_size_changed_cb), NULL); label = clutter_text_new_with_text ("Sans 12px", INSTRUCTIONS); clutter_container_add_actor (CLUTTER_CONTAINER (stage), label); clutter_actor_set_y (label, 480 - clutter_actor_get_height (label) - 8); clutter_actor_show (stage); clutter_main (); return EXIT_SUCCESS; }