gboolean
rcm_gray_motion_notify_event (GtkWidget *widget,
GdkEventMotion *event,
RcmGray *circle)
{
gint x, y;
GdkGCValues values;
values.function = GDK_INVERT;
xor_gc = gdk_gc_new_with_values (Current.From->preview->window,
&values,
GDK_GC_FUNCTION);
if (circle->action_flag == DRAG_START)
{
GtkStyle *style = gtk_widget_get_style (circle->preview);
gtk_widget_queue_draw (circle->preview);
color_rotate_draw_large_circle (circle->preview->window,
style->black_gc,
circle->gray_sat);
circle->action_flag = DRAGING;
}
else
{
color_rotate_draw_little_circle (widget->window, xor_gc,
circle->hue, circle->satur); /* erase */
}
x = event->x - GRAY_CENTER - LITTLE_RADIUS;
y = GRAY_CENTER - event->y + LITTLE_RADIUS;
circle->hue = angle_mod_2PI (arctg (y, x));
circle->satur = sqrt (SQR (x) + SQR (y)) / GRAY_RADIUS;
if (circle->satur > 1.0)
circle->satur = 1;
color_rotate_draw_little_circle (widget->window, xor_gc,
circle->hue, circle->satur);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (circle->hue_entry),
circle->hue * rcm_units_factor(Current.Units));
gtk_spin_button_set_value (GTK_SPIN_BUTTON (circle->satur_entry),
circle->satur);
if (Current.RealTime)
rcm_render_preview (Current.Bna->after);
gdk_event_request_motions (event);
return TRUE;
}
gboolean
rcm_button_press_event (GtkWidget *widget,
GdkEventButton *event,
RcmCircle *circle)
{
float clicked_angle;
float *alpha;
float *beta;
alpha = &circle->angle->alpha;
beta = &circle->angle->beta;
circle->action_flag = DRAG_START;
clicked_angle = angle_mod_2PI (arctg (CENTER - event->y, event->x - CENTER));
circle->prev_clicked = clicked_angle;
if ((sqrt (SQR (event->y - CENTER) +
SQR (event->x - CENTER)) > RADIUS * EACH_OR_BOTH) &&
(min_prox (*alpha, *beta, clicked_angle) < G_PI / 12))
{
circle->mode = EACH;
circle->target = closest (alpha, beta, clicked_angle);
if (*(circle->target) != clicked_angle)
{
GtkStyle *style = gtk_widget_get_style (widget);
*(circle->target) = clicked_angle;
gtk_widget_queue_draw (circle->preview);
color_rotate_draw_arrows (widget->window,
style->black_gc,
circle->angle);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (circle->alpha_entry),
circle->angle->alpha *
rcm_units_factor(Current.Units));
gtk_spin_button_set_value (GTK_SPIN_BUTTON (circle->beta_entry),
circle->angle->beta *
rcm_units_factor(Current.Units));
if (Current.RealTime)
rcm_render_preview (Current.Bna->after);
}
}
else
circle->mode = BOTH;
return TRUE;
}
gboolean
rcm_gray_motion_notify_event (GtkWidget *widget,
GdkEventMotion *event,
RcmGray *circle)
{
gint x, y;
gtk_widget_queue_draw (circle->preview);
x = event->x - GRAY_CENTER - LITTLE_RADIUS;
y = GRAY_CENTER - event->y + LITTLE_RADIUS;
circle->hue = angle_mod_2PI (arctg (y, x));
circle->satur = sqrt (SQR (x) + SQR (y)) / GRAY_RADIUS;
if (circle->satur > 1.0)
circle->satur = 1;
gtk_spin_button_set_value (GTK_SPIN_BUTTON (circle->hue_entry),
circle->hue * rcm_units_factor(Current.Units));
gtk_spin_button_set_value (GTK_SPIN_BUTTON (circle->satur_entry),
circle->satur);
if (Current.RealTime)
rcm_render_preview (Current.Bna->after);
gdk_event_request_motions (event);
return TRUE;
}
gboolean
rcm_motion_notify_event (GtkWidget *widget,
GdkEventMotion *event,
RcmCircle *circle)
{
gfloat clicked_angle, delta;
clicked_angle = angle_mod_2PI (arctg (CENTER - event->y, event->x - CENTER));
delta = clicked_angle - circle->prev_clicked;
circle->prev_clicked = clicked_angle;
if (delta)
{
if (circle->mode == EACH)
{
*(circle->target) = clicked_angle;
}
else
{
circle->angle->alpha = angle_mod_2PI (circle->angle->alpha + delta);
circle->angle->beta = angle_mod_2PI (circle->angle->beta + delta);
}
gtk_widget_queue_draw (widget);
gdk_window_process_updates (gtk_widget_get_window (widget), FALSE);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (circle->alpha_entry),
circle->angle->alpha *
rcm_units_factor(Current.Units));
gtk_spin_button_set_value (GTK_SPIN_BUTTON (circle->beta_entry),
circle->angle->beta *
rcm_units_factor(Current.Units));
if (Current.RealTime)
rcm_render_preview (Current.Bna->after);
}
gdk_event_request_motions (event);
return TRUE;
}
void
rcm_set_hue (GtkWidget *entry,
RcmGray *circle)
{
circle->hue = (gtk_spin_button_get_value (GTK_SPIN_BUTTON (entry)) /
rcm_units_factor(Current.Units));
gtk_widget_queue_draw (circle->preview);
rcm_render_preview (Current.Bna->after);
}
static void
rcm_spinbutton_to_radians_over_PI (GtkWidget *button,
float value,
GtkWidget *label)
{
GtkAdjustment *adj;
adj = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (button));
adj->value = value * rcm_units_factor (Current.Units);
adj->upper = 2.0;
adj->step_increment = 0.0001;
adj->page_increment = 0.001;
gtk_spin_button_set_digits (GTK_SPIN_BUTTON (button), 4);
gtk_label_set_text (GTK_LABEL (label), rcm_units_string (Current.Units));
}
void
rcm_set_beta (GtkWidget *entry,
gpointer data)
{
RcmCircle *circle = data;
if (circle->action_flag != VIRGIN)
return;
circle->angle->beta = (gtk_spin_button_get_value (GTK_SPIN_BUTTON (entry)) /
rcm_units_factor(Current.Units));
gtk_widget_queue_draw (circle->preview);
rcm_draw_arrows (circle->preview->window, circle->preview->style->black_gc,
circle->angle);
rcm_render_preview (Current.Bna->after);
}
static void
rcm_spinbutton_to_radians_over_PI (GtkWidget *button,
float value,
GtkWidget *label)
{
GtkAdjustment *adj;
adj = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (button));
gtk_adjustment_configure (adj,
value * rcm_units_factor (Current.Units),
gtk_adjustment_get_lower (adj), 2.0,
0.0001, 0.001,
gtk_adjustment_get_page_size (adj));
gtk_spin_button_set_digits (GTK_SPIN_BUTTON (button), 4);
gtk_label_set_text (GTK_LABEL (label), rcm_units_string (Current.Units));
}
void
rcm_set_alpha (GtkWidget *entry,
RcmCircle *circle)
{
GtkStyle *style = gtk_widget_get_style (circle->preview);
if (circle->action_flag != VIRGIN)
return;
circle->angle->alpha = (gtk_spin_button_get_value (GTK_SPIN_BUTTON (entry)) /
rcm_units_factor (Current.Units));
gtk_widget_queue_draw (circle->preview);
color_rotate_draw_arrows (circle->preview->window,
style->black_gc,
circle->angle);
rcm_render_preview (Current.Bna->after);
}
gboolean
rcm_gray_button_press_event (GtkWidget *widget,
GdkEventButton *event,
RcmGray *circle)
{
GtkStyle *style = gtk_widget_get_style (widget);
int x, y;
x = event->x - GRAY_CENTER - LITTLE_RADIUS;
y = GRAY_CENTER - event->y + LITTLE_RADIUS;
circle->action_flag = DRAG_START;
circle->hue = angle_mod_2PI(arctg(y, x));
circle->satur = sqrt (SQR (x) + SQR (y)) / GRAY_RADIUS;
if (circle->satur > 1.0)
circle->satur = 1;
gtk_widget_queue_draw (circle->preview);
color_rotate_draw_little_circle (widget->window,
style->black_gc,
circle->hue, circle->satur);
color_rotate_draw_large_circle (circle->preview->window,
gtk_widget_get_style (circle->preview)->black_gc,
circle->gray_sat);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (circle->hue_entry),
circle->hue * rcm_units_factor (Current.Units));
gtk_spin_button_set_value (GTK_SPIN_BUTTON (circle->satur_entry),
circle->satur);
if (Current.RealTime)
rcm_render_preview (Current.Bna->after);
return TRUE;
}
void
rcm_set_hue (GtkWidget *entry,
RcmGray *circle)
{
GtkStyle *style = gtk_widget_get_style (circle->preview);
if (circle->action_flag != VIRGIN)
return;
circle->hue = (gtk_spin_button_get_value (GTK_SPIN_BUTTON (entry)) /
rcm_units_factor(Current.Units));
gtk_widget_queue_draw (circle->preview);
color_rotate_draw_little_circle (circle->preview->window,
style->black_gc,
circle->hue, circle->satur);
color_rotate_draw_large_circle (circle->preview->window,
style->black_gc,
circle->gray_sat);
rcm_render_preview (Current.Bna->after);
}
gboolean
rcm_motion_notify_event (GtkWidget *widget,
GdkEventMotion *event,
RcmCircle *circle)
{
gfloat clicked_angle, delta;
gfloat *alpha, *beta;
gint cw_ccw;
GdkGCValues values;
alpha = &(circle->angle->alpha);
beta = &(circle->angle->beta);
cw_ccw = circle->angle->cw_ccw;
delta = angle_mod_2PI (cw_ccw * (*beta - *alpha));
values.function = GDK_INVERT;
xor_gc = gdk_gc_new_with_values (Current.From->preview->window,
&values,
GDK_GC_FUNCTION);
clicked_angle = angle_mod_2PI (arctg (CENTER - event->y, event->x - CENTER));
delta = clicked_angle - circle->prev_clicked;
circle->prev_clicked = clicked_angle;
if (delta)
{
if (circle->action_flag == DRAG_START)
{
gtk_widget_queue_draw (circle->preview);
circle->action_flag = DRAGING;
}
else
{
/* this should be erasing entire angle */
color_rotate_draw_arrows (widget->window, xor_gc, circle->angle);
}
if (circle->mode == EACH)
{
*(circle->target)=clicked_angle;
}
else
{
circle->angle->alpha=angle_mod_2PI(circle->angle->alpha + delta);
circle->angle->beta =angle_mod_2PI(circle->angle->beta + delta);
}
gdk_window_process_updates (widget->window, FALSE);
color_rotate_draw_arrows (widget->window, xor_gc, circle->angle);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (circle->alpha_entry),
circle->angle->alpha *
rcm_units_factor(Current.Units));
gtk_spin_button_set_value (GTK_SPIN_BUTTON (circle->beta_entry),
circle->angle->beta *
rcm_units_factor(Current.Units));
if (Current.RealTime)
rcm_render_preview (Current.Bna->after);
}
gdk_event_request_motions (event);
return TRUE;
}