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;
}
gboolean phat_keyboard_key_release(PhatKeyboard* keyboard, gint key)
{
if((keyboard->hold == 1 && keyboard->keys[key].hold == 0) || keyboard->hold == 0){
gnome_canvas_item_hide(keyboard->keys[key].on);
gnome_canvas_item_hide(keyboard->keys[key].shad);
keyboard->keys[key].hold = 0;
g_signal_emit(keyboard, signals[KEY_RELEASED], 0, keyboard->keys[key].index);
}
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_clear(GtkWidget *win, gpointer data)
{
int i;
for (i = 0; i < ROWNO * COLNO; i++) {
if (GNOME_IS_CANVAS_IMAGE(ghack_map.map[i])) {
gnome_canvas_item_hide(GNOME_CANVAS_ITEM(ghack_map.map[i]));
}
if (GNOME_IS_CANVAS_IMAGE(ghack_map.overlay[i])) {
gnome_canvas_item_hide(GNOME_CANVAS_ITEM(ghack_map.overlay[i]));
}
}
gnome_canvas_update_now(GNOME_CANVAS(ghack_map.canvas));
}
/* Hide the userlist if there are no users displayed */
void
greeter_item_ulist_check_show_userlist (void)
{
/*
* If there are no users,
* then hide the rectangle used to contain the userlist. The
* userlist-rect id allows a rectangle to be defined with alpha
* behind the userlist that also goes away when the list is empty.
*/
if (num_users == 0) {
GreeterItemInfo *urinfo = greeter_lookup_id ("userlist-rect");
if (user_list != NULL)
gtk_widget_hide (user_list);
if (urinfo) {
GnomeCanvasItem *item;
if (urinfo->group_item != NULL)
item = GNOME_CANVAS_ITEM (urinfo->group_item);
else
item = urinfo->item;
gnome_canvas_item_hide (item);
}
}
}
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));
}
}
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));
}
}
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 void midi_section_init(MidiSection* self)
{
MidiSectionPrivate* p = MIDI_SECTION_GET_PRIVATE(self);
GtkBox* box = GTK_BOX(self);
GtkWidget* pad;
GtkWidget* view;
GtkWidget* scroll;
GnomeCanvas* canvas;
GnomeCanvasPoints* points;
int x1, x2, y1, y2;
p->patch = -1;
p->ignore = FALSE;
x1 = 0;
y1 = 0;
x2 = (PHIN_KEYBOARD_KEY_WIDTH * MIDI_NOTES);
y2 = HEIGHT;
/* adjustment */
p->adj = (GtkAdjustment*) gtk_adjustment_new(0, 0, 0, 0, 0, 0);
/* viewport */
view = gtk_viewport_new(p->adj, NULL);
gtk_box_pack_start(box, view, FALSE, FALSE, 0);
gtk_viewport_set_shadow_type(GTK_VIEWPORT(view), GTK_SHADOW_NONE);
gtk_widget_set_size_request(view, 0, y2);
gtk_widget_show(view);
/* canvas */
canvas = (GnomeCanvas*) gnome_canvas_new();
gtk_widget_set_size_request(GTK_WIDGET(canvas), x2, y2);
gnome_canvas_set_scroll_region(canvas, 0, 0, x2 - 1, y2 -1);
gtk_container_add(GTK_CONTAINER(view), GTK_WIDGET(canvas));
g_signal_connect(G_OBJECT(canvas), "event",
G_CALLBACK(range_cb), (gpointer)p);
gtk_widget_show(GTK_WIDGET(canvas));
/* range display backdrop */
gnome_canvas_item_new(gnome_canvas_root(canvas),
gnome_canvas_rect_get_type(),
"x1", (gdouble)0,
"y1", (gdouble)0,
"x2", (gdouble)x2,
"y2", (gdouble)y2,
"fill-color-rgba", BG_COLOR,
NULL);
/* range */
p->range = gnome_canvas_item_new(gnome_canvas_root(canvas),
gnome_canvas_rect_get_type(),
"x1", (gdouble)x1,
"y1", (gdouble)y1,
"x2", (gdouble)PHIN_KEYBOARD_KEY_WIDTH,
"y2", (gdouble)y2,
"fill-color-rgba", RANGE_COLOR,
"outline-color", "black",
NULL);
gnome_canvas_item_hide(p->range);
/* range root note */
p->note = gnome_canvas_item_new(gnome_canvas_root(canvas),
gnome_canvas_rect_get_type(),
"x1", (gdouble)x1,
"y1", (gdouble)y1,
"x2", (gdouble)PHIN_KEYBOARD_KEY_WIDTH,
"y2", (gdouble)y2,
"fill-color-rgba", NOTE_COLOR,
"outline-color", "black",
NULL);
gnome_canvas_item_hide(p->note);
p->canvas = canvas;
/* range display border */
points = gnome_canvas_points_new(4);
points->coords[0] = x1;
points->coords[1] = y2;
points->coords[2] = x1;
points->coords[3] = y1;
points->coords[4] = x2-1;
points->coords[5] = y1;
points->coords[6] = x2-1;
points->coords[7] = y2;
gnome_canvas_item_new(gnome_canvas_root(canvas),
gnome_canvas_line_get_type(),
"points", points,
"width-units", (gdouble)1,
"fill-color-rgba", 0,
NULL);
gnome_canvas_points_unref(points);
/* keyboard */
p->keyboard = phin_hkeyboard_new(p->adj, MIDI_NOTES, TRUE);
gtk_box_pack_start(box, p->keyboard, FALSE, FALSE, 0);
gtk_widget_show(p->keyboard);
/* vpad */
pad = gui_vpad_new(GUI_SCROLLSPACE);
gtk_box_pack_start(box, pad, FALSE, FALSE, 0);
gtk_widget_show(pad);
/* scrollbar */
scroll = gtk_hscrollbar_new(p->adj);
gtk_box_pack_start(box, scroll, FALSE, FALSE, 0);
gtk_widget_show(scroll);
/* done */
connect(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;
}
WireItem *
wire_item_new (Sheet *sheet, Wire *wire)
{
WireItem *item;
GnomeCanvasPoints *points;
WireItemPriv *priv;
SheetPos start_pos, length;
g_return_val_if_fail (sheet != NULL, NULL);
g_return_val_if_fail (IS_SHEET (sheet), NULL);
//g_object_ref (G_OBJECT(wire));
/* XXX Ver si hay equivalente gtk_object_sink (GTK_OBJECT (wire)); */
wire_get_pos_and_length (wire, &start_pos, &length);
/*
* Because of the GnomeCanvasGroup inheritance, a small hack is needed
* here. The group starts at the startpoint of the wire, and the line
* goes from (0,0) to (length.x, length.y).
*/
item = WIRE_ITEM (gnome_canvas_item_new (
sheet->object_group,
wire_item_get_type (),
"data", wire,
"x", (double) start_pos.x,
"y", (double) start_pos.y,
NULL));
priv = item->priv;
priv->resize1 = GNOME_CANVAS_RECT (gnome_canvas_item_new (
GNOME_CANVAS_GROUP (item),
gnome_canvas_rect_get_type (),
"x1", -RESIZER_SIZE,
"y1", -RESIZER_SIZE,
"x2", RESIZER_SIZE,
"y2", RESIZER_SIZE,
"fill_color", "red",
"fill_color_rgba", 0x3cb37180,
"outline_color", "blue",
"width_pixels", 1,
NULL));
priv->resize2 = GNOME_CANVAS_RECT (gnome_canvas_item_new (
GNOME_CANVAS_GROUP (item),
gnome_canvas_rect_get_type (),
"x1", length.x-RESIZER_SIZE,
"y1", length.y-RESIZER_SIZE,
"x2", length.x+RESIZER_SIZE,
"y2", length.y+RESIZER_SIZE,
"fill_color", "red",
"fill_color_rgba", 0x3cb37180,
"outline_color", "blue",
"width_pixels", 1,
NULL));
gnome_canvas_item_hide (GNOME_CANVAS_ITEM (priv->resize1));
gnome_canvas_item_hide (GNOME_CANVAS_ITEM (priv->resize2));
points = gnome_canvas_points_new (2);
points->coords[0] = 0;
points->coords[1] = 0;
points->coords[2] = length.x;
points->coords[3] = length.y;
priv->line = GNOME_CANVAS_LINE (gnome_canvas_item_new (
GNOME_CANVAS_GROUP (item),
gnome_canvas_line_get_type (),
"points", points,
"fill_color", "blue",
"width_pixels", 1,
NULL));
gnome_canvas_points_free (points);
g_signal_connect_object(G_OBJECT(wire), "rotated",
G_CALLBACK(wire_rotated_callback), G_OBJECT(item), 0);
g_signal_connect_object(G_OBJECT(wire), "flipped",
G_CALLBACK(wire_flipped_callback), G_OBJECT(item), 0);
g_signal_connect_object(G_OBJECT(wire), "moved",
G_CALLBACK(wire_moved_callback), G_OBJECT(item), 0);
g_signal_connect (G_OBJECT (wire), "changed", G_CALLBACK (wire_changed_callback), item);
g_signal_connect (G_OBJECT (wire), "delete", G_CALLBACK (wire_delete_callback), item);
wire_update_bbox (wire);
return item;
}
/* 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 */
/* Checks if there is a canvas_node per each node. If not, one canvas_node
* must be created and initiated */
static gint
check_new_node (node_t * node, GtkWidget * canvas)
{
canvas_node_t *new_canvas_node;
GnomeCanvasGroup *group;
if (!node)
return FALSE;
if (display_node (node) && !g_tree_lookup (canvas_nodes, &node->node_id))
{
new_canvas_node = g_malloc (sizeof (canvas_node_t));
g_assert(new_canvas_node);
new_canvas_node->canvas_node_id = node->node_id;
/* Create a new group to hold the node and its labels */
group = gnome_canvas_root (GNOME_CANVAS (canvas));
group = GNOME_CANVAS_GROUP (gnome_canvas_item_new (group,
GNOME_TYPE_CANVAS_GROUP,
"x", 100.0,
"y", 100.0, NULL));
addref_canvas_obj(G_OBJECT (group));
new_canvas_node->group_item = group;
new_canvas_node->node_item
= gnome_canvas_item_new (group,
GNOME_TYPE_CANVAS_ELLIPSE,
"x1", 0.0,
"x2", 0.0,
"y1", 0.0,
"y2", 0.0,
"fill_color", "white",
"outline_color", "black",
"width_pixels", 0, NULL);
addref_canvas_obj(G_OBJECT (new_canvas_node->node_item));
new_canvas_node->text_item =
gnome_canvas_item_new (group, GNOME_TYPE_CANVAS_TEXT,
"text", node->name->str,
"x", 0.0,
"y", 0.0,
"anchor", GTK_ANCHOR_CENTER,
"font", pref.fontname,
"fill_color", pref.text_color, NULL);
addref_canvas_obj(G_OBJECT (new_canvas_node->text_item));
gnome_canvas_item_raise_to_top (GNOME_CANVAS_ITEM
(new_canvas_node->text_item));
g_signal_connect (G_OBJECT (new_canvas_node->group_item), "event",
(GtkSignalFunc) node_item_event, new_canvas_node);
if (!new_canvas_node->node_item || !new_canvas_node->text_item)
g_log(G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, _("Canvas node null"));
/*
* We hide them until we are sure that they will get a proper position
* in reposition_nodes
*/
gnome_canvas_item_hide (new_canvas_node->node_item);
gnome_canvas_item_hide (new_canvas_node->text_item);
new_canvas_node->is_new = TRUE;
new_canvas_node->shown = TRUE;
g_tree_insert (canvas_nodes,
&new_canvas_node->canvas_node_id, new_canvas_node);
g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG,
_("Creating canvas_node: %s. Number of nodes %d"),
node->name->str, g_tree_nnodes (canvas_nodes));
need_reposition = TRUE;
}
return FALSE; /* False to keep on traversing */
} /* check_new_node */
/* - calls update_links, so that the related link updates its average
* traffic and main protocol, and old links are deleted
* - caculates link size and color fading */
static gint
canvas_link_update(link_id_t * link_id, canvas_link_t * canvas_link,
GList **delete_list)
{
const link_t *link;
const canvas_node_t *canvas_dst;
const canvas_node_t *canvas_src;
guint32 scaledColor;
double xs, ys, xd, yd, scale;
/* We used to run update_link here, but that was a major performance penalty,
* and now it is done in update_diagram */
link = links_catalog_find(link_id);
if (!link)
{
*delete_list = g_list_prepend( *delete_list, link_id);
g_my_debug ("Queing canvas link to remove.");
return FALSE;
}
/* If either source or destination has disappeared, we hide the link
* until it can be show again */
/* We get coords for the destination node */
canvas_dst = g_tree_lookup (canvas_nodes, &link_id->dst);
if (!canvas_dst || !canvas_dst->shown)
{
gnome_canvas_item_hide (canvas_link->src_item);
gnome_canvas_item_hide (canvas_link->dst_item);
return FALSE;
}
/* We get coords from source node */
canvas_src = g_tree_lookup (canvas_nodes, &link_id->src);
if (!canvas_src || !canvas_src->shown)
{
gnome_canvas_item_hide (canvas_link->src_item);
gnome_canvas_item_hide (canvas_link->dst_item);
return FALSE;
}
/* What if there never is a protocol?
* I have to initialize canvas_link->color to a known value */
if (link->main_prot[pref.stack_level])
{
double diffms;
canvas_link->color = protohash_color(link->main_prot[pref.stack_level]);
/* scale color down to 10% at link timeout */
diffms = substract_times_ms(&appdata.now, &link->link_stats.stats.last_time);
scale = pow(0.10, diffms / pref.gui_link_timeout_time);
scaledColor =
(((int) (scale * canvas_link->color.red) & 0xFF00) << 16) |
(((int) (scale * canvas_link->color.green) & 0xFF00) << 8) |
((int) (scale * canvas_link->color.blue) & 0xFF00) | 0xFF;
}
else
{
guint32 black = 0x000000ff;
scaledColor = black;
}
/* retrieve coordinates of node centers */
g_object_get (G_OBJECT (canvas_src->group_item), "x", &xs, "y", &ys, NULL);
g_object_get (G_OBJECT (canvas_dst->group_item), "x", &xd, "y", &yd, NULL);
/* first draw triangle for src->dst */
draw_oneside_link(xs, ys, xd, yd, &(link->link_stats.stats_out), scaledColor,
canvas_link->src_item);
/* then draw triangle for dst->src */
draw_oneside_link(xd, yd, xs, ys, &(link->link_stats.stats_in), scaledColor,
canvas_link->dst_item);
return FALSE;
} /* update_canvas_links */
/* so much gayness in here, either I suck or gnome-canvas does; most
* likely, we both do */
static void draw_key(PhatKeyboard* self, gint index, gint pos, guint bg,
guint hi, guint low, guint pre, guint on, guint shad)
{
_Key* key = &self->keys[index];
GnomeCanvasPoints* points;
gint x1;
gint y1;
gint x2;
gint y2;
if (self->orientation == GTK_ORIENTATION_VERTICAL)
{
x1 = 0;
y1 = pos + 1; /* teh gayz0r */
x2 = PHAT_KEYBOARD_KEY_LENGTH - 1;
y2 = pos - PHAT_KEYBOARD_KEY_WIDTH + 1;
}
else
{
x1 = pos + PHAT_KEYBOARD_KEY_WIDTH - 1;
y1 = 0;
x2 = pos;
y2 = PHAT_KEYBOARD_KEY_LENGTH - 1;
}
/* key group */
key->group = (GnomeCanvasGroup*) gnome_canvas_item_new(gnome_canvas_root(self->canvas),
gnome_canvas_group_get_type(),
NULL);
g_signal_connect(G_OBJECT(key->group), "event",
G_CALLBACK(key_press_cb), (gpointer)key);
key->index = index;
key->hold = 0;
key->keyboard = self;
/* draw main key rect */
gnome_canvas_item_new(key->group,
gnome_canvas_rect_get_type(),
"x1", (gdouble)x1,
"y1", (gdouble)y1,
"x2", (gdouble)x2,
"y2", (gdouble)y2,
"fill-color-rgba", bg,
NULL);
/* draw prelight rect */
key->pre = gnome_canvas_item_new(key->group,
gnome_canvas_rect_get_type(),
"x1", (gdouble)x1,
"y1", (gdouble)y1,
"x2", (gdouble)x2,
"y2", (gdouble)y2,
"fill-color-rgba", pre,
NULL);
gnome_canvas_item_hide(key->pre);
/* draw key highlight */
points = gnome_canvas_points_new(3);
if (self->orientation == GTK_ORIENTATION_VERTICAL)
{
points->coords[0] = x1+1;
points->coords[1] = y1;
points->coords[2] = x1+1;
points->coords[3] = y2+1;
points->coords[4] = x2;
points->coords[5] = y2+1;
}
else
{
points->coords[0] = x1;
points->coords[1] = y1+1;
points->coords[2] = x2;
points->coords[3] = y1+1;
points->coords[4] = x2;
points->coords[5] = y2;
}
gnome_canvas_item_new(key->group,
gnome_canvas_line_get_type(),
"points", points,
"width-units", (gdouble)1,
"fill-color-rgba", hi,
NULL);
gnome_canvas_points_unref(points);
/* draw key border */
points = gnome_canvas_points_new(4);
if (self->orientation == GTK_ORIENTATION_VERTICAL)
{
points->coords[0] = x1;
points->coords[1] = y1;
points->coords[2] = x1;
points->coords[3] = y2;
points->coords[4] = x2;
points->coords[5] = y2;
points->coords[6] = x2;
points->coords[7] = y1;
}
else
{
points->coords[0] = x2;
points->coords[1] = y1;
points->coords[2] = x1;
points->coords[3] = y1;
points->coords[4] = x1;
points->coords[5] = y2;
points->coords[6] = x2;
points->coords[7] = y2;
}
gnome_canvas_item_new(key->group,
gnome_canvas_line_get_type(),
"points", points,
"width-units", (gdouble)1,
"fill-color-rgba", low,
NULL);
gnome_canvas_points_unref(points);
if (self->orientation == GTK_ORIENTATION_VERTICAL)
{
/* draw active rect */
key->on = gnome_canvas_item_new(key->group,
gnome_canvas_rect_get_type(),
"x1", (gdouble)x1+1,
"y1", (gdouble)y1,
"x2", (gdouble)x2,
"y2", (gdouble)y2+1,
"fill-color-rgba", on,
NULL);
}
else
{
/* draw active rect */
key->on = gnome_canvas_item_new(key->group,
gnome_canvas_rect_get_type(),
"x1", (gdouble)x1,
"y1", (gdouble)y1+1,
"x2", (gdouble)x2,
"y2", (gdouble)y2,
"fill-color-rgba", on,
NULL);
}
gnome_canvas_item_hide(key->on);
/* draw active shadow */
points = gnome_canvas_points_new(6);
if (self->orientation == GTK_ORIENTATION_VERTICAL)
{
points->coords[0] = x1+1;
points->coords[1] = y1;
points->coords[2] = x1+1;
points->coords[3] = y2+1;
points->coords[4] = x2;
points->coords[5] = y2+1;
points->coords[6] = x2;
points->coords[7] = y2 + 3;
points->coords[8] = x1 + 3;
points->coords[9] = y2 + 3;
points->coords[10] = x1 + 3;
points->coords[11] = y1;
}
else
{
points->coords[0] = x1;
points->coords[1] = y1 + 1;
points->coords[2] = x2;
points->coords[3] = y1 + 1;
points->coords[4] = x2;
points->coords[5] = y2;
points->coords[6] = x2 + 2;
points->coords[7] = y2;
points->coords[8] = x2 + 2;
points->coords[9] = y1 + 3;
points->coords[10] = x1;
points->coords[11] = y1 + 3;
}
key->shad = gnome_canvas_item_new(key->group,
gnome_canvas_polygon_get_type(),
"points", points,
"fill-color-rgba", shad,
NULL);
gnome_canvas_item_hide(key->shad);
gnome_canvas_points_unref(points);
/* draw label if applicable */
if (self->label && (index % 12) == 0)
{
gchar* s = g_strdup_printf("%d", index / 12 + 1);
if (self->orientation == GTK_ORIENTATION_VERTICAL)
{
gnome_canvas_item_new(key->group,
gnome_canvas_text_get_type(),
"text", s,
"x", (gdouble)(x2 - 2),
"y", (gdouble)(y1 - (PHAT_KEYBOARD_KEY_WIDTH / 2)),
"anchor", GTK_ANCHOR_EAST,
"fill-color-rgba", (gint)KEY_TEXT_BG,
"font", "sans",
"size-points", (gdouble)TEXT_POINTS,
NULL);
}
else
{
gnome_canvas_item_new(key->group,
gnome_canvas_text_get_type(),
"text", s,
"x", (gdouble)(x1 - (PHAT_KEYBOARD_KEY_WIDTH / 2)),
"y", (gdouble)(y2 - 2),
"anchor", GTK_ANCHOR_SOUTH,
"fill-color-rgba", (gint)KEY_TEXT_BG,
"font", "sans",
"size-points", (gdouble)TEXT_POINTS,
"justification", GTK_JUSTIFY_CENTER,
NULL);
}
g_free(s);
}
}