2006-06-06 Iain Holmes <iain@openedhand.com>
* gtk/: Add a gtk widget for clutter.
* configure.ac: Add GTK checks
* Makefile.am: Go into gtk/
This commit is contained in:
Iain Holmes
209
gtk/gtk-clutter-test.c
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209
gtk/gtk-clutter-test.c
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#include <gtk/gtk.h>
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#include <clutter/clutter.h>
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#include <math.h>
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#include "gtk-clutter.h"
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#define TRAILS 0
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#define NHANDS 6
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#define WINWIDTH 800
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#define WINHEIGHT 800
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#define RADIUS 250
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typedef struct SuperOH
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{
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ClutterElement *hand[NHANDS], *bgtex;
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ClutterGroup *group;
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GdkPixbuf *bgpixb;
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} SuperOH;
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/* input handler */
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void
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input_cb (ClutterStage *stage,
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ClutterEvent *event,
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gpointer data)
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{
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SuperOH *oh = (SuperOH *)data;
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if (event->type == CLUTTER_BUTTON_PRESS)
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{
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ClutterButtonEvent *bev = (ClutterButtonEvent *) event;
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ClutterElement *e;
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g_print ("*** button press event (button:%d) ***\n",
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bev->button);
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e = clutter_stage_get_element_at_pos (stage,
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clutter_button_event_x (event),
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clutter_button_event_y (event));
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if (e)
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clutter_element_hide(e);
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}
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else if (event->type == CLUTTER_KEY_PRESS)
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{
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ClutterKeyEvent *kev = (ClutterKeyEvent *) event;
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g_print ("*** key press event (key:%c) ***\n",
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clutter_key_event_symbol (kev));
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if (clutter_key_event_symbol (kev) == CLUTTER_q)
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clutter_main_quit ();
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}
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}
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/* Timeline handler */
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void
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frame_cb (ClutterTimeline *timeline,
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gint frame_num,
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gpointer data)
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{
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SuperOH *oh = (SuperOH *)data;
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ClutterElement *stage = clutter_stage_get_default ();
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gint i;
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#if TRAILS
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oh->bgpixb = clutter_stage_snapshot (CLUTTER_STAGE (stage),
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0, 0,
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WINWIDTH,
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WINHEIGHT);
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clutter_texture_set_pixbuf (CLUTTER_TEXTURE (oh->bgtex), oh->bgpixb);
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g_object_unref (G_OBJECT (oh->bgpixb));
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g_object_unref (stage);
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#endif
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/* Rotate everything clockwise about stage center*/
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clutter_element_rotate_z (CLUTTER_ELEMENT(oh->group),
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frame_num,
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WINWIDTH/2,
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WINHEIGHT/2);
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for (i = 0; i < NHANDS; i++)
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{
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/* rotate each hand around there centers */
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clutter_element_rotate_z (oh->hand[i],
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- 6.0 * frame_num,
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clutter_element_get_width (oh->hand[i])/2,
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clutter_element_get_height (oh->hand[i])/2);
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}
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/*
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clutter_element_rotate_x (CLUTTER_ELEMENT(oh->group),
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75.0,
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WINHEIGHT/2, 0);
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*/
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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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ClutterTimeline *timeline;
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ClutterElement *stage;
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ClutterColor stage_color = { 0x61, 0x64, 0x8c, 0xff };
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GtkWidget *window, *plug, *clutter;
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GtkWidget *label, *button, *vbox;
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GdkPixbuf *pixbuf;
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SuperOH *oh;
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gint i;
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clutter_init (&argc, &argv);
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gtk_init (&argc, &argv);
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pixbuf = gdk_pixbuf_new_from_file ("redhand.png", NULL);
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if (!pixbuf)
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g_error("pixbuf load failed");
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clutter = g_object_new (GTK_TYPE_CLUTTER, NULL);
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stage = gtk_clutter_get_stage (GTK_CLUTTER (clutter));
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/* Set our stage size */
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clutter_element_set_size (stage, WINWIDTH, WINHEIGHT);
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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g_signal_connect (window, "destroy",
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G_CALLBACK (gtk_main_quit), NULL);
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vbox = gtk_vbox_new (FALSE, 6);
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gtk_container_add (GTK_CONTAINER (window), vbox);
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gtk_container_add (GTK_CONTAINER (vbox), clutter);
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label = gtk_label_new ("This is a label");
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gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
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button = gtk_button_new_with_label ("This is a button...clicky");
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gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
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/* and its background color */
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clutter_stage_set_color (CLUTTER_STAGE (stage),
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&stage_color);
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oh = g_new(SuperOH, 1);
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#if TRAILS
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oh->bgtex = clutter_texture_new();
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clutter_element_set_size (oh->bgtex, WINWIDTH, WINHEIGHT);
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clutter_element_set_opacity (oh->bgtex, 0x99);
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clutter_group_add (CLUTTER_GROUP (stage), oh->bgtex);
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#endif
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/* create a new group to hold multiple elements in a group */
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oh->group = clutter_group_new();
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for (i = 0; i < NHANDS; i++)
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{
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gint x, y, w, h;
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/* Create a texture from pixbuf, then clone in to same resources */
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if (i == 0)
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oh->hand[i] = clutter_texture_new_from_pixbuf (pixbuf);
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else
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oh->hand[i] = clutter_clone_texture_new (CLUTTER_TEXTURE(oh->hand[0]));
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/* Place around a circle */
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w = clutter_element_get_width (oh->hand[0]);
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h = clutter_element_get_height (oh->hand[0]);
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x = WINWIDTH/2 + RADIUS * cos (i * M_PI / (NHANDS/2)) - w/2;
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y = WINHEIGHT/2 + RADIUS * sin (i * M_PI / (NHANDS/2)) - h/2;
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clutter_element_set_position (oh->hand[i], x, y);
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/* Add to our group group */
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clutter_group_add (oh->group, oh->hand[i]);
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}
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/* Add the group to the stage */
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clutter_group_add (CLUTTER_GROUP (stage), CLUTTER_ELEMENT(oh->group));
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/* Show everying ( and map window ) */
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clutter_group_show_all (oh->group);
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clutter_group_show_all (CLUTTER_GROUP (stage));
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g_signal_connect (stage, "button-press-event",
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G_CALLBACK (input_cb),
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oh);
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g_signal_connect (stage, "key-release-event",
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G_CALLBACK (input_cb),
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oh);
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gtk_widget_show_all (window);
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/* Create a timeline to manage animation */
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timeline = clutter_timeline_new (360, 60); /* num frames, fps */
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g_object_set(timeline, "loop", TRUE, 0); /* have it loop */
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/* fire a callback for frame change */
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g_signal_connect(timeline, "new-frame", G_CALLBACK (frame_cb), oh);
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/* and start it */
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clutter_timeline_start (timeline);
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gtk_main();
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return 0;
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}
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