mutter/tests/interactive/test-paint-wrapper.c

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#include <gmodule.h>
#undef CLUTTER_DISABLE_DEPRECATED
#include <clutter/clutter.h>
#if defined (_MSC_VER) && !defined (_USE_MATH_DEFINES)
#define _USE_MATH_DEFINES
#endif
#include <math.h>
#include <errno.h>
#include <stdlib.h>
#include <glib.h>
#ifdef CLUTTER_WINDOWING_X11
#include "clutter/x11/clutter-x11.h"
#endif
#define NHANDS 6
typedef struct SuperOH
{
ClutterActor **hand, *bgtex;
ClutterActor *real_hand;
ClutterActor *group;
ClutterActor *stage;
gint stage_width;
gint stage_height;
gfloat radius;
ClutterBehaviour *scaler_1;
ClutterBehaviour *scaler_2;
ClutterTimeline *timeline;
gboolean *paint_guards;
} SuperOH;
static gint n_hands = NHANDS;
static gint use_alpha = 255;
static GOptionEntry super_oh_entries[] = {
{
"num-hands", 'n',
0,
G_OPTION_ARG_INT, &n_hands,
"Number of hands", "HANDS"
},
{
"use-alpha", 'a',
0,
G_OPTION_ARG_INT, &use_alpha,
"Stage opacity", "VALUE"
},
{ NULL }
};
static gboolean
on_button_press_event (ClutterActor *actor,
ClutterEvent *event,
SuperOH *oh)
{
gfloat x, y;
clutter_event_get_coords (event, &x, &y);
g_print ("*** button press event (button:%d) at %.2f, %.2f ***\n",
clutter_event_get_button (event),
x, y);
clutter_actor_hide (actor);
return TRUE;
}
static gboolean
input_cb (ClutterActor *stage,
ClutterEvent *event,
gpointer data)
{
SuperOH *oh = data;
if (event->type == CLUTTER_KEY_RELEASE)
{
g_print ("*** key press event (key:%c) ***\n",
clutter_event_get_key_symbol (event));
if (clutter_event_get_key_symbol (event) == CLUTTER_KEY_q)
{
clutter_main_quit ();
return TRUE;
}
else if (clutter_event_get_key_symbol (event) == CLUTTER_KEY_r)
{
gint i;
for (i = 0; i < n_hands; i++)
clutter_actor_show (oh->hand[i]);
return TRUE;
}
}
return FALSE;
}
/* Timeline handler */
static void
frame_cb (ClutterTimeline *timeline,
gint msecs,
gpointer data)
{
SuperOH *oh = data;
gint i;
float rotation = clutter_timeline_get_progress (timeline) * 360.0f;
/* Rotate everything clockwise about stage center*/
clutter_actor_set_rotation (oh->group,
CLUTTER_Z_AXIS,
rotation,
oh->stage_width / 2,
oh->stage_height / 2,
0);
for (i = 0; i < n_hands; i++)
{
/* Rotate each hand around there centers - to get this we need
* to take into account any scaling.
*/
clutter_actor_set_rotation (oh->hand[i],
CLUTTER_Z_AXIS,
-6.0 * rotation,
0, 0, 0);
}
}
static gdouble
my_sine_wave (ClutterAlpha *alpha,
gpointer dummy G_GNUC_UNUSED)
{
ClutterTimeline *timeline = clutter_alpha_get_timeline (alpha);
gdouble progress = clutter_timeline_get_progress (timeline);
return sin (progress * G_PI);
}
static void
hand_pre_paint (ClutterActor *actor,
gpointer user_data)
{
SuperOH *oh = user_data;
Remove Units from the public API With the recent change to internal floating point values, ClutterUnit has become a redundant type, defined to be a float. All integer entry points are being internally converted to floating point values to be passed to the GL pipeline with the least amount of conversion. ClutterUnit is thus exposed as just a "pixel with fractionary bits", and not -- as users might think -- as generic, resolution and device independent units. not that it was the case, but a definitive amount of people was convinced it did provide this "feature", and was flummoxed about the mere existence of this type. So, having ClutterUnit exposed in the public API doubles the entry points and has the following disadvantages: - we have to maintain twice the amount of entry points in ClutterActor - we still do an integer-to-float implicit conversion - we introduce a weird impedance between pixels and "pixels with fractionary bits" - language bindings will have to choose what to bind, and resort to manually overriding the API + *except* for language bindings based on GObject-Introspection, as they cannot do manual overrides, thus will replicate the entire set of entry points For these reason, we should coalesces every Actor entry point for pixels and for ClutterUnit into a single entry point taking a float, like: void clutter_actor_set_x (ClutterActor *self, gfloat x); void clutter_actor_get_size (ClutterActor *self, gfloat *width, gfloat *height); gfloat clutter_actor_get_height (ClutterActor *self); etc. The issues I have identified are: - we'll have a two cases of compiler warnings: - printf() format of the return values from %d to %f - clutter_actor_get_size() taking floats instead of unsigned ints - we'll have a problem with varargs when passing an integer instead of a floating point value, except on 64bit platforms where the size of a float is the same as the size of an int To be clear: the *intent* of the API should not change -- we still use pixels everywhere -- but: - we remove ambiguity in the API with regard to pixels and units - we remove entry points we get to maintain for the whole 1.0 version of the API - we make things simpler to bind for both manual language bindings and automatic (gobject-introspection based) ones - we have the simplest API possible while still exposing the capabilities of the underlying GL implementation
2009-05-06 11:44:47 -04:00
gfloat w, h;
int actor_num;
for (actor_num = 0; oh->hand[actor_num] != actor; actor_num++)
;
g_assert (oh->paint_guards[actor_num] == FALSE);
clutter_actor_get_size (actor, &w, &h);
2008-11-12 Emmanuele Bassi <ebassi@linux.intel.com> * clutter/cogl/cogl-color.h: * clutter/cogl/cogl-path.h: * clutter/cogl/cogl-types.h: * clutter/cogl/common/cogl-color.c: Deprecated cogl_color() in favour of cogl_set_source_color() and friends; store the CoglColor components as unsigned bytes instead of fixed point normalized values; add functions for allocating, copying and freeing CoglColor, for use of language bindings. * clutter/cogl/cogl.h.in: * clutter/cogl/cogl-deprecated.h: Added cogl-deprecated.h, an header file containing the deprecation symbols similar to clutter-deprecated.h. * clutter/cogl/gl/Makefile.am: * clutter/cogl/gl/cogl-texture.c: * clutter/cogl/gl/cogl.c: * clutter/cogl/gles/Makefile.am: * clutter/cogl/gles/cogl-texture.c: * clutter/cogl/gles/cogl.c: Update the GL and GLES implementations of COGL after the CoglColor changes. * clutter/clutter-actor.c: * clutter/clutter-clone-texture.c: * clutter/clutter-entry.c: * clutter/clutter-label.c: * clutter/clutter-rectangle.c: * clutter/clutter-texture.c: Do not use CoglColor whenever it is possible, and use cogl_set_source_color4ub() instead. * clutter/pango/cogl-pango-render.c: Ditto as above. * doc/reference/clutter/subclassing-ClutterActor.xml: * doc/reference/cogl/cogl-sections.txt: Update the documentation. * tests/interactive/test-cogl-offscreen.c: * tests/interactive/test-cogl-primitives.c: * tests/interactive/test-cogl-tex-convert.c: * tests/interactive/test-cogl-tex-foreign.c: * tests/interactive/test-cogl-tex-getset.c: * tests/interactive/test-cogl-tex-polygon.c: * tests/interactive/test-cogl-tex-tile.c: * tests/interactive/test-paint-wrapper.c: Drop the usage of CoglColor whenever it is possible.
2008-11-12 08:57:58 -05:00
cogl_set_source_color4ub (255, 0, 0, 128);
cogl_rectangle (0, 0, w / 2, h / 2);
oh->paint_guards[actor_num] = TRUE;
}
static void
hand_post_paint (ClutterActor *actor,
gpointer user_data)
{
SuperOH *oh = user_data;
Remove Units from the public API With the recent change to internal floating point values, ClutterUnit has become a redundant type, defined to be a float. All integer entry points are being internally converted to floating point values to be passed to the GL pipeline with the least amount of conversion. ClutterUnit is thus exposed as just a "pixel with fractionary bits", and not -- as users might think -- as generic, resolution and device independent units. not that it was the case, but a definitive amount of people was convinced it did provide this "feature", and was flummoxed about the mere existence of this type. So, having ClutterUnit exposed in the public API doubles the entry points and has the following disadvantages: - we have to maintain twice the amount of entry points in ClutterActor - we still do an integer-to-float implicit conversion - we introduce a weird impedance between pixels and "pixels with fractionary bits" - language bindings will have to choose what to bind, and resort to manually overriding the API + *except* for language bindings based on GObject-Introspection, as they cannot do manual overrides, thus will replicate the entire set of entry points For these reason, we should coalesces every Actor entry point for pixels and for ClutterUnit into a single entry point taking a float, like: void clutter_actor_set_x (ClutterActor *self, gfloat x); void clutter_actor_get_size (ClutterActor *self, gfloat *width, gfloat *height); gfloat clutter_actor_get_height (ClutterActor *self); etc. The issues I have identified are: - we'll have a two cases of compiler warnings: - printf() format of the return values from %d to %f - clutter_actor_get_size() taking floats instead of unsigned ints - we'll have a problem with varargs when passing an integer instead of a floating point value, except on 64bit platforms where the size of a float is the same as the size of an int To be clear: the *intent* of the API should not change -- we still use pixels everywhere -- but: - we remove ambiguity in the API with regard to pixels and units - we remove entry points we get to maintain for the whole 1.0 version of the API - we make things simpler to bind for both manual language bindings and automatic (gobject-introspection based) ones - we have the simplest API possible while still exposing the capabilities of the underlying GL implementation
2009-05-06 11:44:47 -04:00
gfloat w, h;
int actor_num;
for (actor_num = 0; oh->hand[actor_num] != actor; actor_num++)
;
g_assert (oh->paint_guards[actor_num] == TRUE);
clutter_actor_get_size (actor, &w, &h);
2008-11-12 Emmanuele Bassi <ebassi@linux.intel.com> * clutter/cogl/cogl-color.h: * clutter/cogl/cogl-path.h: * clutter/cogl/cogl-types.h: * clutter/cogl/common/cogl-color.c: Deprecated cogl_color() in favour of cogl_set_source_color() and friends; store the CoglColor components as unsigned bytes instead of fixed point normalized values; add functions for allocating, copying and freeing CoglColor, for use of language bindings. * clutter/cogl/cogl.h.in: * clutter/cogl/cogl-deprecated.h: Added cogl-deprecated.h, an header file containing the deprecation symbols similar to clutter-deprecated.h. * clutter/cogl/gl/Makefile.am: * clutter/cogl/gl/cogl-texture.c: * clutter/cogl/gl/cogl.c: * clutter/cogl/gles/Makefile.am: * clutter/cogl/gles/cogl-texture.c: * clutter/cogl/gles/cogl.c: Update the GL and GLES implementations of COGL after the CoglColor changes. * clutter/clutter-actor.c: * clutter/clutter-clone-texture.c: * clutter/clutter-entry.c: * clutter/clutter-label.c: * clutter/clutter-rectangle.c: * clutter/clutter-texture.c: Do not use CoglColor whenever it is possible, and use cogl_set_source_color4ub() instead. * clutter/pango/cogl-pango-render.c: Ditto as above. * doc/reference/clutter/subclassing-ClutterActor.xml: * doc/reference/cogl/cogl-sections.txt: Update the documentation. * tests/interactive/test-cogl-offscreen.c: * tests/interactive/test-cogl-primitives.c: * tests/interactive/test-cogl-tex-convert.c: * tests/interactive/test-cogl-tex-foreign.c: * tests/interactive/test-cogl-tex-getset.c: * tests/interactive/test-cogl-tex-polygon.c: * tests/interactive/test-cogl-tex-tile.c: * tests/interactive/test-paint-wrapper.c: Drop the usage of CoglColor whenever it is possible.
2008-11-12 08:57:58 -05:00
cogl_set_source_color4ub (0, 255, 0, 128);
cogl_rectangle (w / 2, h / 2, w, h);
oh->paint_guards[actor_num] = FALSE;
}
G_MODULE_EXPORT int
test_paint_wrapper_main (int argc, char *argv[])
{
ClutterAlpha *alpha;
ClutterActor *stage;
ClutterColor stage_color = { 0x61, 0x64, 0x8c, 0xff };
SuperOH *oh;
gint i;
GError *error;
ClutterActor *real_hand;
error = NULL;
#ifdef CLUTTER_WINDOWING_X11
clutter_x11_set_use_argb_visual (TRUE);
#endif
clutter_init_with_args (&argc, &argv,
NULL,
super_oh_entries,
NULL,
&error);
if (error)
{
g_warning ("Unable to initialise Clutter:\n%s",
error->message);
g_error_free (error);
return EXIT_FAILURE;
}
stage = clutter_stage_get_default ();
clutter_actor_set_size (stage, 800, 600);
if (use_alpha != 255)
{
clutter_stage_set_use_alpha (CLUTTER_STAGE (stage), TRUE);
clutter_actor_set_opacity (stage, use_alpha);
}
clutter_stage_set_title (CLUTTER_STAGE (stage), "Paint Test");
clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
oh = g_new(SuperOH, 1);
oh->stage = stage;
/* Create a timeline to manage animation */
oh->timeline = clutter_timeline_new (6000);
clutter_timeline_set_loop (oh->timeline, TRUE);
/* fire a callback for frame change */
g_signal_connect (oh->timeline, "new-frame", G_CALLBACK (frame_cb), oh);
/* Set up some behaviours to handle scaling */
alpha = clutter_alpha_new_with_func (oh->timeline, my_sine_wave, NULL, NULL);
oh->scaler_1 = clutter_behaviour_scale_new (alpha, 0.5, 0.5, 1.0, 1.0);
oh->scaler_2 = clutter_behaviour_scale_new (alpha, 1.0, 1.0, 0.5, 0.5);
real_hand = clutter_texture_new_from_file (TESTS_DATADIR
G_DIR_SEPARATOR_S
"redhand.png",
&error);
if (real_hand == NULL)
{
g_error ("image load failed: %s", error->message);
return EXIT_FAILURE;
}
/* create a new group to hold multiple actors in a group */
oh->group = clutter_group_new();
oh->hand = g_new (ClutterActor*, n_hands);
oh->stage_width = clutter_actor_get_width (stage);
oh->stage_height = clutter_actor_get_height (stage);
oh->radius = (oh->stage_width + oh->stage_height)
/ n_hands;
for (i = 0; i < n_hands; i++)
{
gint x, y, w, h;
if (i == 0)
oh->hand[i] = real_hand;
else
oh->hand[i] = clutter_clone_new (real_hand);
clutter_actor_set_reactive (oh->hand[i], TRUE);
clutter_actor_set_size (oh->hand[i], 200, 213);
/* Place around a circle */
w = clutter_actor_get_width (oh->hand[i]);
h = clutter_actor_get_height (oh->hand[i]);
x = oh->stage_width / 2
+ oh->radius
* cos (i * G_PI / (n_hands / 2))
- w / 2;
y = oh->stage_height / 2
+ oh->radius
* sin (i * G_PI / (n_hands / 2))
- h / 2;
clutter_actor_set_position (oh->hand[i], x, y);
clutter_actor_move_anchor_point_from_gravity (oh->hand[i],
CLUTTER_GRAVITY_CENTER);
g_signal_connect (oh->hand[i], "button-press-event",
G_CALLBACK (on_button_press_event),
oh);
/* paint something before each hand */
g_signal_connect (oh->hand[i],
"paint", G_CALLBACK (hand_pre_paint),
oh);
/* paint something after each hand */
g_signal_connect_after (oh->hand[i],
"paint", G_CALLBACK (hand_post_paint),
oh);
/* Add to our group group */
clutter_container_add_actor (CLUTTER_CONTAINER (oh->group), oh->hand[i]);
if (i % 2)
clutter_behaviour_apply (oh->scaler_1, oh->hand[i]);
else
clutter_behaviour_apply (oh->scaler_2, oh->hand[i]);
}
oh->paint_guards = g_malloc0 (sizeof (gboolean) * n_hands);
/* Add the group to the stage */
clutter_container_add_actor (CLUTTER_CONTAINER (stage),
CLUTTER_ACTOR (oh->group));
/* Show everying ( and map window ) */
clutter_actor_show (stage);
g_signal_connect (stage, "key-release-event",
G_CALLBACK (input_cb),
oh);
/* and start it */
clutter_timeline_start (oh->timeline);
clutter_main ();
g_object_unref (oh->scaler_1);
g_object_unref (oh->scaler_2);
g_object_unref (oh->timeline);
g_free (oh->paint_guards);
g_free (oh->hand);
g_free (oh);
return 0;
}