static gboolean key_press_cb(GnomeCanvasItem* item, GdkEvent* event, _Key* key)
{
switch (event->type)
{
case GDK_BUTTON_PRESS:
if((key->keyboard->hold == 1 && key->hold == 0) || key->keyboard->hold == 0){
gnome_canvas_item_show(key->on);
gnome_canvas_item_show(key->shad);
key->hold = 1;
g_signal_emit(key->keyboard, signals[KEY_PRESSED], 0, key->index);
} else if (key->keyboard->hold == 1 && key->hold == 1) key->hold = 0;
break;
case GDK_BUTTON_RELEASE:
if((key->keyboard->hold == 1 && key->hold == 0) || key->keyboard->hold == 0){
gnome_canvas_item_hide(key->on);
gnome_canvas_item_hide(key->shad);
g_signal_emit(key->keyboard, signals[KEY_RELEASED], 0, key->index);
}
break;
case GDK_ENTER_NOTIFY:
gnome_canvas_item_show(key->pre);
break;
case GDK_LEAVE_NOTIFY:
gnome_canvas_item_hide(key->pre);
break;
default:
break;
}
return FALSE;
}
void
ghack_map_print_glyph(GtkObject *win, guint x, guint y, GdkImlibImage *im,
gpointer data)
{
GnomeCanvasGroup *group;
int i = y * COLNO + x;
int glyph = glyph_at(x, y);
GnomeCanvasImage *canvas_image = GNOME_CANVAS_IMAGE(ghack_map.map[i]);
group = gnome_canvas_root(GNOME_CANVAS(ghack_map.canvas));
gnome_canvas_item_set(GNOME_CANVAS_ITEM(canvas_image), "image", im, NULL);
gnome_canvas_item_show(GNOME_CANVAS_ITEM(canvas_image));
canvas_image = GNOME_CANVAS_IMAGE(ghack_map.overlay[i]);
if (x == u.ux && y == u.uy)
ghack_map_cliparound(NULL, x, y, NULL);
if (glyph_is_pet(glyph)
#ifdef TEXTCOLOR
&& iflags.hilite_pet
#endif
) {
gnome_canvas_item_raise_to_top(GNOME_CANVAS_ITEM(canvas_image));
gnome_canvas_item_show(GNOME_CANVAS_ITEM(canvas_image));
} else {
gnome_canvas_item_hide(GNOME_CANVAS_ITEM(canvas_image));
}
}
gboolean phat_keyboard_key_press(PhatKeyboard* keyboard, gint key)
{
if((keyboard->hold == 1 && keyboard->keys[key].hold == 0) || keyboard->hold == 0){
gnome_canvas_item_show(keyboard->keys[key].on);
gnome_canvas_item_show(keyboard->keys[key].shad);
keyboard->keys[key].hold = 1;
g_signal_emit(keyboard, signals[KEY_PRESSED], 0, keyboard->keys[key].index);
} else if (keyboard->hold == 1 && keyboard->keys[key].hold == 1) keyboard->keys[key].hold = 0;
return TRUE;
}
static void
selection_changed(WireItem *item, gboolean select, gpointer user_data)
{
g_object_ref(G_OBJECT(item));
if (select) {
gtk_idle_add ((gpointer) select_idle_callback, item);
gnome_canvas_item_show (GNOME_CANVAS_ITEM (item->priv->resize1));
gnome_canvas_item_show (GNOME_CANVAS_ITEM (item->priv->resize2));
} else {
gtk_idle_add ((gpointer) deselect_idle_callback, item);
gnome_canvas_item_hide (GNOME_CANVAS_ITEM (item->priv->resize1));
gnome_canvas_item_hide (GNOME_CANVAS_ITEM (item->priv->resize2));
}
}
void
ghack_map_cursor_to(GtkWidget *win, int x, int y, gpointer data)
{
GnomeCanvasGroup *group;
static GnomeCanvasRE *cursor = NULL;
double x1, y1, x2, y2;
float hp;
guint r, g, b;
x1 = x * ghack_glyph_width() - 1;
y1 = y * ghack_glyph_height() - 1;
x2 = x1 + ghack_glyph_width() + 2;
y2 = y1 + ghack_glyph_height() + 2;
hp = u.mtimedone ? (u.mhmax ? (float) u.mh / u.mhmax : 1)
: (u.uhpmax ? (float) u.uhp / u.uhpmax : 1);
r = 255;
g = (hp >= 0.75) ? 255 : (hp >= 0.25 ? 255 * 2 * (hp - 0.25) : 0);
b = (hp >= 0.75) ? 255 * 4 * (hp - 0.75)
: (hp >= 0.25 ? 0 : 255 * 4 * (0.25 - hp));
group = gnome_canvas_root(GNOME_CANVAS(ghack_map.canvas));
if (!cursor) {
cursor = GNOME_CANVAS_RE(gnome_canvas_item_new(
group, gnome_canvas_rect_get_type(), "width_units", 1.0, NULL));
}
gnome_canvas_item_set(GNOME_CANVAS_ITEM(cursor), "outline_color_rgba",
GNOME_CANVAS_COLOR(r, g, b), "x1", x1, "y1", y1,
"x2", x2, "y2", y2, NULL);
gnome_canvas_item_raise_to_top(GNOME_CANVAS_ITEM(cursor));
gnome_canvas_item_show(GNOME_CANVAS_ITEM(cursor));
}
static int itemShow( Tcl_Interp *interp, int objc, Tcl_Obj * const objv[],
CanvasParams *param, GPtrArray *items )
{
guint k;
int on = 1;
if( objc > 4 )
{
Tcl_WrongNumArgs( interp, 3, objv, "?on?" );
return TCL_ERROR;
}
if( objc == 4 )
{
if( Tcl_GetBooleanFromObj( interp, objv[3], &on ) != TCL_OK )
return TCL_ERROR;
}
if( items != NULL )
{
for( k = 0; k < items->len; ++k )
{
Gnocl_CanvasItemInfo *info = GET_INFO( items, k );
if( on )
gnome_canvas_item_show( info->item );
else
gnome_canvas_item_hide( info->item );
}
}
return TCL_OK;
}
static void
relation_arrow_predecessor_visibility_changed (PlannerGanttRow *row,
gboolean visible,
PlannerRelationArrow *arrow)
{
arrow->priv->predecessor_visible = visible;
if (!visible) {
gnome_canvas_item_hide (GNOME_CANVAS_ITEM (arrow));
} else if (arrow->priv->successor_visible) {
gnome_canvas_item_show (GNOME_CANVAS_ITEM (arrow));
}
}
/* given the src and dst node centers, plus a size, draws a triangle in the
* specified color on the provided canvas item*/
static void draw_oneside_link(double xs, double ys, double xd, double yd,
const basic_stats_t *link_stats,
guint32 scaledColor, GnomeCanvasItem *item)
{
GnomeCanvasPoints *points;
gdouble versorx, versory, modulus, link_size;
link_size = get_link_size(link_stats) / 2;
/* limit the maximum size to avoid overload */
if (link_size > MAX_LINK_SIZE)
link_size = MAX_LINK_SIZE;
versorx = -(yd - ys);
versory = xd - xs;
modulus = sqrt (pow (versorx, 2) + pow (versory, 2));
if (modulus == 0)
{
link_size = 0;
modulus = 1;
}
points = gnome_canvas_points_new (3);
points->coords[0] = xd;
points->coords[1] = yd;
points->coords[2] = xs + versorx * link_size / modulus;
points->coords[3] = ys + versory * link_size / modulus;
points->coords[4] = xs - versorx * link_size / modulus;
points->coords[5] = ys - versory * link_size / modulus;
gnome_canvas_item_set (item,
"points", points,
"fill_color_rgba", scaledColor, NULL);
/* If we got this far, the link can be shown. Make sure it is */
gnome_canvas_item_show (item);
gnome_canvas_points_unref (points);
}
void midi_section_set_patch(MidiSection* self, int patch)
{
MidiSectionPrivate* p = MIDI_SECTION_GET_PRIVATE(self);
int note;
int lower;
int upper;
p->patch = patch;
if (patch < 0)
{
set_sensitive(p, FALSE);
gnome_canvas_item_hide(p->note);
gnome_canvas_item_hide(p->range);
if (p->ignore)
p->ignore = FALSE;
else
gtk_adjustment_set_value(p->adj,
(0.5 * gtk_adjustment_get_upper(p->adj)
- gtk_adjustment_get_page_size(p->adj) / 2));
}
else
{
set_sensitive(p, TRUE);
note = patch_get_root_note(patch);
lower = patch_get_lower_note(patch);
upper = patch_get_upper_note(patch);
block(p);
gnome_canvas_item_set(p->note, "x1",
(gdouble)(note * PHIN_KEYBOARD_KEY_WIDTH - 1), NULL);
gnome_canvas_item_set(p->note, "x2",
(gdouble)(note * PHIN_KEYBOARD_KEY_WIDTH
+ PHIN_KEYBOARD_KEY_WIDTH - 1), NULL);
gnome_canvas_item_show(p->note);
gnome_canvas_item_set(p->range, "x1",
(gdouble) (lower * PHIN_KEYBOARD_KEY_WIDTH - 1), NULL);
gnome_canvas_item_set(p->range, "x2",
(gdouble) (upper * PHIN_KEYBOARD_KEY_WIDTH
+ PHIN_KEYBOARD_KEY_WIDTH - 1), NULL);
if (lower != upper)
gnome_canvas_item_show(p->range);
else
gnome_canvas_item_hide(p->range);
/* scroll the keyboard to show the root note */
if (p->ignore)
p->ignore = FALSE;
else
gtk_adjustment_set_value(p->adj,
((note + 1.0) / MIDI_NOTES)
* gtk_adjustment_get_upper(p->adj)
- gtk_adjustment_get_page_size(p->adj) / 2);
unblock(p);
}
}
static gboolean range_cb(GnomeCanvasItem* item, GdkEvent* event,
MidiSectionPrivate* p)
{
(void)item;
int clicked;
int note;
int lower;
int upper;
gboolean change_range = FALSE;
PatchList* list;
/* a ghetto form of set-insensitive */
if (p->patch < 0)
return FALSE;
if (event->type != GDK_BUTTON_PRESS)
return FALSE;
list = gui_get_patch_list();
clicked = event->button.x / PHIN_KEYBOARD_KEY_WIDTH;
note = patch_get_root_note(p->patch);
lower = patch_get_lower_note(p->patch);
upper = patch_get_upper_note(p->patch);
/* process the click */
if (event->button.button == 1)
{
lower = clicked;
change_range = TRUE;
}
else if (event->button.button == 2)
{
note = clicked;
}
else if (event->button.button == 3)
{
upper = clicked;
change_range = TRUE;
}
/* clamp the parameters */
if (note < lower)
lower = note;
if (note > upper)
upper = note;
/* if the range is off, and a range adjusting button wasn't
* pressed, then clamp the range down to nothing (which will
* result in it remaining disabled) */
if (!change_range && lower == upper)
lower = upper = note;
/* reposition note */
gnome_canvas_item_set(p->note, "x1",
(gdouble)(note * PHIN_KEYBOARD_KEY_WIDTH - 1), NULL);
gnome_canvas_item_set(p->note, "x2",
(gdouble) (note * PHIN_KEYBOARD_KEY_WIDTH
+ PHIN_KEYBOARD_KEY_WIDTH - 1), NULL);
/* reposition range */
gnome_canvas_item_set(p->range, "x1",
(gdouble)(lower * PHIN_KEYBOARD_KEY_WIDTH - 1), NULL);
gnome_canvas_item_set(p->range, "x2",
(gdouble)(upper * PHIN_KEYBOARD_KEY_WIDTH
+ PHIN_KEYBOARD_KEY_WIDTH - 1), NULL);
/* apply changes */
patch_set_root_note(p->patch, note);
patch_set_lower_note(p->patch, lower);
patch_set_upper_note(p->patch, upper);
if (lower == upper)
gnome_canvas_item_hide(p->range);
else
gnome_canvas_item_show(p->range);
/* we might have moved this patch around relative to the list;
* update the list and try to keep this patch selected */
p->ignore = TRUE;
patch_list_update(list, patch_list_get_current_patch(list),
PATCH_LIST_PATCH);
return FALSE;
}
/* TODO I think I should update all links as well, so as not having
* stale graphics if the diagram has been resized */
static gint
reposition_canvas_nodes (guint8 * ether_addr, canvas_node_t * canvas_node,
GtkWidget * canvas)
{
static gfloat angle = 0.0;
static guint node_i = 0, n_nodes = 0;
gdouble x = 0, y = 0, xmin, ymin, xmax, ymax, text_compensation = 50;
gdouble x_rad_max, y_rad_max;
gdouble oddAngle = angle;
if (!canvas_node->shown)
{
gnome_canvas_item_hide (canvas_node->node_item);
gnome_canvas_item_hide (canvas_node->text_item);
return FALSE;
}
gnome_canvas_get_scroll_region (GNOME_CANVAS (canvas),
&xmin, &ymin, &xmax, &ymax);
if (!n_nodes)
n_nodes = node_i = displayed_nodes;
xmin += text_compensation;
xmax -= text_compensation; /* Reduce the drawable area so that
* the node name is not lost
* TODO: Need a function to calculate
* text_compensation depending on font size */
x_rad_max = 0.9 * (xmax - xmin) / 2;
y_rad_max = 0.9 * (ymax - ymin) / 2;
/* TODO I've done all the stationary changes in a hurry
* I should review it an tidy up all this stuff */
if (pref.stationary)
{
if (canvas_node->is_new)
{
static guint count = 0, base = 1;
gdouble angle = 0;
if (count == 0)
{
angle = M_PI * 2.0f;
count++;
}
else
{
if (count > 2 * base)
{
base *= 2;
count = 1;
}
angle = M_PI * (gdouble) count / ((gdouble) base);
count += 2;
}
x = x_rad_max * cos (angle);
y = y_rad_max * sin (angle);
}
}
else
{
if (n_nodes % 2 == 0) /* spacing is better when n_nodes is odd and Y is linear */
oddAngle = (angle * n_nodes) / (n_nodes + 1);
if (n_nodes > 7)
{
x = x_rad_max * cos (oddAngle);
y = y_rad_max * asin (sin (oddAngle)) / (M_PI / 2);
}
else
{
x = x_rad_max * cos (angle);
y = y_rad_max * sin (angle);
}
}
if (!pref.stationary || canvas_node->is_new)
{
gnome_canvas_item_set (GNOME_CANVAS_ITEM (canvas_node->group_item),
"x", x, "y", y, NULL);
canvas_node->is_new = FALSE;
}
if (need_font_refresh)
{
/* We update the text font */
gnome_canvas_item_set (canvas_node->text_item,
"font", pref.fontname,
"fill_color", pref.text_color,
NULL);
}
if (pref.diagram_only)
{
gnome_canvas_item_hide (canvas_node->text_item);
}
else
{
gnome_canvas_item_show (canvas_node->text_item);
gnome_canvas_item_request_update (canvas_node->text_item);
}
gnome_canvas_item_show (canvas_node->node_item);
gnome_canvas_item_request_update (canvas_node->node_item);
node_i--;
if (node_i)
angle += 2 * M_PI / n_nodes;
else
{
angle = 0.0;
n_nodes = 0;
}
return FALSE;
} /* reposition_canvas_nodes */