Commit fd6d4931 authored by Ell's avatar Ell

It's alive!

parent a3071d26
......@@ -34,9 +34,21 @@
#include "gimpcairo-wilber.h"
static void gimp_cairo_eyes (cairo_t *cr,
gdouble x,
gdouble y);
static void gimp_cairo_wilber_internal (GtkWidget *widget,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble factor,
gdouble max_eye_angle);
static void gimp_cairo_eyes (GtkWidget *widget,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble factor,
gdouble max_eye_angle);
static gboolean pointer_eyes = TRUE;
void
......@@ -67,9 +79,10 @@ gimp_cairo_draw_toolbox_wilber (GtkWidget *widget,
cairo_scale (cr, factor, factor);
gimp_cairo_wilber (cr,
(allocation.width / factor - wilber_width) / 2.0,
(allocation.height / factor - wilber_height) / 2.0);
gimp_cairo_wilber_internal (widget, cr,
(allocation.width / factor - wilber_width) / 2.0,
(allocation.height / factor - wilber_height) / 2.0,
factor, 30.0 * G_PI / 180.0);
cairo_set_source_rgba (cr,
style->fg[state].red / 65535.0,
......@@ -122,9 +135,10 @@ gimp_cairo_draw_drop_wilber (GtkWidget *widget,
/* magic factors depend on the image used, everything else is generic
*/
gimp_cairo_wilber (cr,
- wilber_width * 0.6,
allocation.height / factor - wilber_height * 1.1);
gimp_cairo_wilber_internal (widget, cr,
- wilber_width * 0.6,
allocation.height / factor - wilber_height * 1.1,
factor, 50.0 * G_PI / 180.0);
cairo_set_source_rgba (cr,
style->fg[state].red / 65535.0,
......@@ -135,9 +149,10 @@ gimp_cairo_draw_drop_wilber (GtkWidget *widget,
if (blink)
{
gimp_cairo_eyes (cr,
gimp_cairo_eyes (widget, cr,
- wilber_width * 0.6,
allocation.height / factor - wilber_height * 1.1);
allocation.height / factor - wilber_height * 1.1,
factor, 50.0 * G_PI / 180.0);
cairo_set_source_rgba (cr,
style->fg[state].red / 65535.0,
......@@ -155,7 +170,7 @@ gimp_cairo_draw_drop_wilber (GtkWidget *widget,
* function to do that.
*/
static const gchar wilber_path[] =
"M 509.72445,438.68864 C 501.47706,469.77945 464.95038,491.54566 431.85915,497.74874 C 438.5216,503.01688 442.87782,511.227 442.87782,520.37375 C 442.87783,536.24746 429.95607,549.0223 414.08235,549.0223 C 398.20863,549.0223 385.28688,536.24746 385.28688,520.37375 C 385.28688,511.52403 389.27666,503.61286 395.57098,498.3364 C 359.36952,495.90384 343.70976,463.95812 343.70975,463.95814 L 342.68134,509.64891 C 342.68134,514.35021 342.08391,519.96098 340.18378,528.3072 C 339.84664,527.80364 339.51399,527.33515 339.15537,526.83804 C 330.25511,514.5011 317.25269,507.81431 306.39317,508.76741 C 302.77334,509.08511 299.47017,510.33348 296.54982,512.4403 C 284.86847,520.86757 284.97665,540.94721 296.84366,557.3965 C 306.96274,571.42287 322.32232,578.25612 333.8664,574.73254 C 391.94635,615.17624 532.16931,642.41915 509.72445,438.68864 z M 363.24953,501.1278 C 373.83202,501.12778 382.49549,509.79127 382.49549,520.37375 C 382.49549,530.95624 373.83201,539.47279 363.24953,539.47279 C 352.66706,539.47279 344.1505,530.95624 344.1505,520.37375 C 344.15049,509.79129 352.66706,501.1278 363.24953,501.1278 z M 305.80551,516.1132 C 311.68466,516.11318 316.38344,521.83985 316.38344,528.89486 C 316.38345,535.94982 311.68467,541.67652 305.80551,541.67652 C 299.92636,541.67652 295.08067,535.94987 295.08067,528.89486 C 295.08065,521.83985 299.92636,516.1132 305.80551,516.1132 z M 440.821,552.54828 C 440.821,552.54828 448.7504,554.02388 453.8965,559.45332 C 457.41881,563.16951 457.75208,569.15506 456.98172,577.37703 C 456.21143,573.8833 454.89571,571.76659 453.8965,569.29666 C 443.01388,582.47662 413.42981,583.08929 376.0312,569.88433 C 416.63248,578.00493 437.38806,570.56014 449.48903,561.2163 C 446.29383,557.08917 440.821,552.54828 440.821,552.54828 z M 434.64723,524.59684 C 434.64723,532.23974 428.44429,538.44268 420.80139,538.44268 C 413.15849,538.44268 406.95555,532.23974 406.95555,524.59684 C 406.95555,516.95394 413.15849,510.751 420.80139,510.751 C 428.44429,510.751 434.64723,516.95394 434.64723,524.59684 z M 378.00043,522.99931 C 378.00043,527.70264 374.18324,531.51984 369.47991,531.51984 C 364.77658,531.51984 360.95939,527.70264 360.95939,522.99931 C 360.95939,518.29599 364.77658,514.47879 369.47991,514.47879 C 374.18324,514.47879 378.00043,518.29599 378.00043,522.99931 z ";
"M 509.72445,438.68864 C 501.47706,469.77945 464.95038,491.54566 431.85915,497.74874 C 438.5216,503.01688 442.87782,511.227 442.87782,520.37375 C 442.87783,536.24746 429.95607,549.0223 414.08235,549.0223 C 398.20863,549.0223 385.28688,536.24746 385.28688,520.37375 C 385.28688,511.52403 389.27666,503.61286 395.57098,498.3364 C 359.36952,495.90384 343.70976,463.95812 343.70975,463.95814 L 342.68134,509.64891 C 342.68134,514.35021 342.08391,519.96098 340.18378,528.3072 C 339.84664,527.80364 339.51399,527.33515 339.15537,526.83804 C 330.25511,514.5011 317.25269,507.81431 306.39317,508.76741 C 302.77334,509.08511 299.47017,510.33348 296.54982,512.4403 C 284.86847,520.86757 284.97665,540.94721 296.84366,557.3965 C 306.96274,571.42287 322.32232,578.25612 333.8664,574.73254 C 391.94635,615.17624 532.16931,642.41915 509.72445,438.68864 z M 363.24953,501.1278 C 373.83202,501.12778 382.49549,509.79127 382.49549,520.37375 C 382.49549,530.95624 373.83201,539.47279 363.24953,539.47279 C 352.66706,539.47279 344.1505,530.95624 344.1505,520.37375 C 344.15049,509.79129 352.66706,501.1278 363.24953,501.1278 z M 305.80551,516.1132 C 311.68466,516.11318 316.38344,521.83985 316.38344,528.89486 C 316.38345,535.94982 311.68467,541.67652 305.80551,541.67652 C 299.92636,541.67652 295.08067,535.94987 295.08067,528.89486 C 295.08065,521.83985 299.92636,516.1132 305.80551,516.1132 z M 440.821,552.54828 C 440.821,552.54828 448.7504,554.02388 453.8965,559.45332 C 457.41881,563.16951 457.75208,569.15506 456.98172,577.37703 C 456.21143,573.8833 454.89571,571.76659 453.8965,569.29666 C 443.01388,582.47662 413.42981,583.08929 376.0312,569.88433 C 416.63248,578.00493 437.38806,570.56014 449.48903,561.2163 C 446.29383,557.08917 440.821,552.54828 440.821,552.54828 z ";
static const gchar eyes_path[] =
"M 434.64723,524.59684 C 434.64723,532.23974 428.44429,538.44268 420.80139,538.44268 C 413.15849,538.44268 406.95555,532.23974 406.95555,524.59684 C 406.95555,516.95394 413.15849,510.751 420.80139,510.751 C 428.44429,510.751 434.64723,516.95394 434.64723,524.59684 z M 378.00043,522.99931 C 378.00043,527.70264 374.18324,531.51984 369.47991,531.51984 C 364.77658,531.51984 360.95939,527.70264 360.95939,522.99931 C 360.95939,518.29599 364.77658,514.47879 369.47991,514.47879 C 374.18324,514.47879 378.00043,518.29599 378.00043,522.99931 z ";
......@@ -187,6 +202,17 @@ void
gimp_cairo_wilber (cairo_t *cr,
gdouble x,
gdouble y)
{
gimp_cairo_wilber_internal (NULL, cr, x, y, 1.0, 0.0);
}
static void
gimp_cairo_wilber_internal (GtkWidget *widget,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble factor,
gdouble max_eye_angle)
{
wilber_get_extents (cr);
......@@ -196,12 +222,297 @@ gimp_cairo_wilber (cairo_t *cr,
cairo_append_path (cr, wilber_cairo_path);
cairo_restore (cr);
gimp_cairo_eyes (widget, cr, x, y, factor, max_eye_angle);
}
typedef struct
{
gdouble x;
gdouble y;
gdouble radius;
gdouble a;
gdouble b;
gdouble r;
} Eye;
static const Eye eyes[2] =
{
{ .x = (344.151 + 382.496) / 2.0,
.y = (501.128 + 539.473) / 2.0,
.radius = (382.496 - 344.151) / 2.0,
.a = 25.0 * G_PI / 180.0,
.b = 24.0 * G_PI / 180.0,
.r = 0.475
},
{ .x = (385.287 + 442.878) / 2.0,
.y = (491.431 + 549.022) / 2.0,
.radius = (442.878 - 385.287) / 2.0,
.a = 34.0 * G_PI / 180.0,
.b = 19.0 * G_PI / 180.0,
.r = 0.5
}
};
typedef struct
{
gdouble a;
gdouble b;
} EyeState;
typedef struct
{
EyeState eyes[2];
gdouble x;
gdouble y;
gdouble factor;
gdouble max_eye_angle;
gdouble t;
gint timeout_id;
} EyesState;
static EyesState *
eyes_state_new (void)
{
EyesState *state = g_slice_new0 (EyesState);
gint i;
for (i = 0; i < 2; i++)
{
state->eyes[i].a = eyes[i].a;
state->eyes[i].b = eyes[i].b;
}
state->t = (gdouble) g_get_monotonic_time () / G_TIME_SPAN_SECOND;
return state;
}
static void
gimp_cairo_eyes (cairo_t *cr,
gdouble x,
gdouble y)
eyes_state_free (EyesState *state)
{
if (state->timeout_id)
g_source_remove (state->timeout_id);
g_slice_free (EyesState, state);
}
static gboolean
gimp_cairo_pointer_eyes_timeout (GtkWidget *widget)
{
EyesState *state;
gdouble t;
gint pointer_x;
gint pointer_y;
GtkAllocation allocation;
GdkWindow *window;
gint window_x;
gint window_y;
gint redraw = 2;
gint i;
state = g_object_get_data (G_OBJECT (widget), "wilber-eyes-state");
t = (gdouble) g_get_monotonic_time () / G_TIME_SPAN_SECOND;
gdk_display_get_pointer (gtk_widget_get_display (widget),
NULL, &pointer_x, &pointer_y, NULL);
gtk_widget_get_allocation (widget, &allocation);
window = gtk_widget_get_window (widget);
if (window)
gdk_window_get_origin (window, &window_x, &window_y);
for (i = 0; i < 2; i++)
{
const Eye *eye = &eyes[i];
gdouble a;
gdouble b;
gdouble c;
GimpVector3 u;
GimpVector3 v;
GimpVector3 w;
if (pointer_eyes)
{
gdouble screen_x;
gdouble screen_y;
gdouble z = 220.0 * state->factor;
gdouble d;
screen_x = (eye->x + state->x - wilber_x1) * state->factor;
screen_y = (eye->y + state->y - wilber_y1) * state->factor;
if (! gtk_widget_get_has_window (widget))
{
screen_x += allocation.x;
screen_y += allocation.y;
}
if (window)
{
screen_x += window_x;
screen_y += window_y;
}
d = sqrt (SQR (pointer_x - screen_x) + SQR (pointer_y - screen_y));
a = atan2 (pointer_y - screen_y, pointer_x - screen_x);
b = atan (d / z);
b = MIN (b, state->max_eye_angle);
}
else
{
a = eyes[i].a;
b = eyes[i].b;
}
if (a == state->eyes[i].a && b == state->eyes[i].b)
{
redraw--;
continue;
}
u.x = sin (state->eyes[i].b) * cos (state->eyes[i].a);
u.y = sin (state->eyes[i].b) * sin (state->eyes[i].a);
u.z = cos (state->eyes[i].b);
v.x = sin (b) * cos (a);
v.y = sin (b) * sin (a);
v.z = cos (b);
c = acos (gimp_vector3_inner_product (&u, &v));
if (c < 1e-2)
{
state->eyes[i].a = a;
state->eyes[i].b = b;
continue;
}
c *= 1.0 - exp (-(t - state->t) * 15.0);
w = gimp_vector3_cross_product (&u, &v);
w = gimp_vector3_cross_product (&w, &u);
gimp_vector3_normalize (&w);
v.x = u.x * cos (c) + w.x * sin (c);
v.y = u.y * cos (c) + w.y * sin (c);
v.z = u.z * cos (c) + w.z * sin (c);
a = atan2 (v.y, v.x);
b = acos (v.z);
state->eyes[i].a = a;
state->eyes[i].b = b;
}
state->t = t;
if (redraw)
{
state->timeout_id = 0;
gtk_widget_queue_draw (widget);
return G_SOURCE_REMOVE;
}
else if (! pointer_eyes)
{
state->timeout_id = 0;
g_object_set_data (G_OBJECT (widget), "wilber-eyes-state", NULL);
gtk_widget_queue_draw (widget);
return G_SOURCE_REMOVE;
}
return G_SOURCE_CONTINUE;
}
static void
gimp_cairo_pointer_eyes (GtkWidget *widget,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble factor,
gdouble max_eye_angle)
{
EyesState *state;
gint i;
state = g_object_get_data (G_OBJECT (widget), "wilber-eyes-state");
if (! state)
{
state = eyes_state_new ();
g_object_set_data_full (G_OBJECT (widget), "wilber-eyes-state", state,
(GDestroyNotify) eyes_state_free);
}
for (i = 0; i < 2; i++)
{
const Eye *eye = &eyes[i];
gdouble R = eye->radius;
gdouble r = eye->r * eye->radius;
gint j;
cairo_save (cr);
cairo_translate (cr, eye->x, eye->y);
cairo_rotate (cr, state->eyes[i].a);
for (j = 0; j < 32; j++)
{
gdouble a = -2.0 * G_PI * j / 32.0;
gdouble u = r * cos (a);
gdouble v = r * sin (a);
gdouble w = sqrt (SQR (R) - SQR (v));
gdouble b = asin (u / w);
b = CLAMP (b + state->eyes[i].b, -G_PI / 2.0, +G_PI / 2.0);
u = w * sin (b);
if (j == 0)
cairo_move_to (cr, u, v);
else
cairo_line_to (cr, u, v);
}
cairo_close_path (cr);
cairo_restore (cr);
}
state->x = x;
state->y = y;
state->factor = factor;
state->max_eye_angle = max_eye_angle;
if (! state->timeout_id)
{
state->timeout_id =
g_timeout_add (17,
(GSourceFunc) gimp_cairo_pointer_eyes_timeout,
widget);
}
}
static void
gimp_cairo_eyes (GtkWidget *widget,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble factor,
gdouble max_eye_angle)
{
wilber_get_extents (cr);
eyes_get_extents (cr);
......@@ -209,7 +520,16 @@ gimp_cairo_eyes (cairo_t *cr,
cairo_save (cr);
cairo_translate (cr, x - wilber_x1, y - wilber_y1);
cairo_append_path (cr, eyes_cairo_path);
if (widget &&
(pointer_eyes ||
g_object_get_data (G_OBJECT (widget), "wilber-eyes-state")))
{
gimp_cairo_pointer_eyes (widget, cr, x, y, factor, max_eye_angle);
}
else
{
cairo_append_path (cr, eyes_cairo_path);
}
cairo_restore (cr);
}
......
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