int
sheet_event_callback (GtkWidget *widget, GdkEvent *event, Sheet *sheet)
{
switch (event->type) {
case GDK_3BUTTON_PRESS:
// We don't not care about triple clicks on the sheet.
return FALSE;
case GDK_2BUTTON_PRESS:
// The sheet does not care about double clicks, but invoke the
// canvas event handler and see if an item picks up the event.
if ((*GTK_WIDGET_CLASS (sheet->priv->sheet_parent_class)
->button_press_event) (widget, (GdkEventButton *)event))
return TRUE;
else
return FALSE;
case GDK_BUTTON_PRESS:
// If we are in the middle of something else, don't interfere
// with that.
if (sheet->state != SHEET_STATE_NONE) {
return FALSE;
}
if ((* GTK_WIDGET_CLASS (sheet->priv->sheet_parent_class)
->button_press_event) (widget, (GdkEventButton *) event)) {
return TRUE;
}
if (event->button.button == 3) {
run_context_menu (
schematic_view_get_schematicview_from_sheet (sheet),
(GdkEventButton *) event);
return TRUE;
}
if (event->button.button == 1) {
if (!(event->button.state & GDK_SHIFT_MASK))
sheet_select_all (sheet, FALSE);
rubberband_start (sheet, event);
return TRUE;
}
break;
case GDK_BUTTON_RELEASE:
if (event->button.button == 4 || event->button.button == 5)
return TRUE;
if (event->button.button == 1 && sheet->priv->rubberband_info->state == RUBBERBAND_ACTIVE) {
rubberband_finish (sheet, event);
return TRUE;
}
if (GTK_WIDGET_CLASS (sheet->priv->sheet_parent_class)->button_release_event != NULL) {
return GTK_WIDGET_CLASS (sheet->priv->sheet_parent_class)
->button_release_event (widget, (GdkEventButton *) event);
}
break;
case GDK_SCROLL:
if (((GdkEventScroll *)event)->direction == GDK_SCROLL_UP) {
double zoom;
sheet_get_zoom (sheet, &zoom);
if (zoom < ZOOM_MAX)
sheet_change_zoom (sheet, 1.1);
}
else if (((GdkEventScroll *)event)->direction == GDK_SCROLL_DOWN) {
double zoom;
sheet_get_zoom (sheet, &zoom);
if (zoom > ZOOM_MIN)
sheet_change_zoom (sheet, 0.9);
}
break;
case GDK_MOTION_NOTIFY:
if (sheet->priv->rubberband_info->state == RUBBERBAND_ACTIVE) {
rubberband_update (sheet, event);
return TRUE;
}
if (GTK_WIDGET_CLASS (sheet->priv->sheet_parent_class)
->motion_notify_event != NULL) {
return GTK_WIDGET_CLASS (sheet->priv->sheet_parent_class)
->motion_notify_event (widget, (GdkEventMotion *) event);
}
case GDK_ENTER_NOTIFY:
GTK_WIDGET_CLASS (sheet->priv->sheet_parent_class)
->enter_notify_event (widget, (GdkEventCrossing *) event);
case GDK_KEY_PRESS:
switch (event->key.keyval) {
case GDK_KEY_R:
case GDK_KEY_r:
if (sheet->state == SHEET_STATE_NONE)
sheet_rotate_selection (sheet);
break;
case GDK_KEY_Home:
case GDK_KEY_End:
break;
case GDK_KEY_Left:
if (event->key.state & GDK_MOD1_MASK)
sheet_scroll_pixel (sheet, -20, 0);
break;
case GDK_KEY_Up:
if (event->key.state & GDK_MOD1_MASK)
sheet_scroll_pixel (sheet, 0, -20);
break;
case GDK_KEY_Right:
if (event->key.state & GDK_MOD1_MASK)
sheet_scroll_pixel (sheet, 20, 0);
break;
case GDK_KEY_Down:
if (event->key.state & GDK_MOD1_MASK)
sheet_scroll_pixel (sheet, 0, 20);
break;
case GDK_KEY_Page_Up:
if (event->key.state & GDK_MOD1_MASK)
sheet_scroll_pixel (sheet, 0, -120);
break;
case GDK_KEY_Page_Down:
if (event->key.state & GDK_MOD1_MASK)
sheet_scroll_pixel (sheet, 0, 120);
break;
case GDK_KEY_Escape:
g_signal_emit_by_name (G_OBJECT (sheet), "cancel");
break;
case GDK_KEY_Delete:
sheet_delete_selection (sheet);
break;
default:
return FALSE;
}
default:
return FALSE;
}
return TRUE;
}
gboolean
wire_item_event (WireItem *wire_item,
GooCanvasItem *sheet_target_item,
GdkEvent *event, Sheet *sheet)
{
SheetPos start_pos, length;
Wire *wire;
GooCanvas *canvas;
static double last_x, last_y;
double dx, dy, zoom;
// The selected group's bounding box in window resp. canvas coordinates.
double snapped_x, snapped_y;
SheetPos pos;
canvas = GOO_CANVAS (sheet);
g_object_get (G_OBJECT (wire_item),
"data", &wire,
NULL);
wire_get_pos_and_length (WIRE (wire), &start_pos, &length);
sheet_get_zoom (sheet, &zoom);
switch (event->type) {
case GDK_BUTTON_PRESS:
switch (event->button.button) {
case 1: {
double x, y;
g_signal_stop_emission_by_name (wire_item,
"button_press_event");
sheet_get_pointer (sheet, &x, &y);
x = x - start_pos.x;
y = y - start_pos.y;
if ((x > -RESIZER_SIZE) && (x < RESIZER_SIZE) &&
(y > -RESIZER_SIZE) && (y < RESIZER_SIZE)) {
gtk_widget_grab_focus (GTK_WIDGET (sheet));
sheet->state = SHEET_STATE_DRAG_START;
wire_item->priv->resize_state = WIRE_RESIZER_1;
sheet_get_pointer (sheet, &x, &y);
last_x = x;
last_y = y;
item_data_unregister (ITEM_DATA (wire));
return TRUE;
}
if ((x > (length.x-RESIZER_SIZE)) &&
(x < (length.x+RESIZER_SIZE)) &&
(y > (length.y-RESIZER_SIZE)) &&
(y < (length.y+RESIZER_SIZE))) {
gtk_widget_grab_focus (GTK_WIDGET (sheet));
sheet->state = SHEET_STATE_DRAG_START;
wire_item->priv->resize_state = WIRE_RESIZER_2;
sheet_get_pointer (sheet, &x, &y);
last_x = x;
last_y = y;
item_data_unregister (ITEM_DATA (wire));
return TRUE;
}
}
break;
}
break;
case GDK_MOTION_NOTIFY:
if (sheet->state != SHEET_STATE_DRAG &&
sheet->state != SHEET_STATE_DRAG_START)
break;
if (wire_item->priv->resize_state == WIRE_RESIZER_NONE)
break;
if (sheet->state == SHEET_STATE_DRAG_START ||
sheet->state == SHEET_STATE_DRAG) {
g_signal_stop_emission_by_name (wire_item,
"motion-notify-event");
sheet->state = SHEET_STATE_DRAG;
sheet_get_pointer (sheet, &snapped_x, &snapped_y);
dx = snapped_x - last_x;
dy = snapped_y - last_y;
last_x = snapped_x;
last_y = snapped_y;
wire_get_pos_and_length (wire, &pos, &length);
if (wire_item->priv->resize_state == WIRE_RESIZER_1) {
switch (wire->priv->direction) {
case WIRE_DIR_VERT:
/* Vertical Wire */
pos.y = last_y;
length.y -= dy;
break;
case WIRE_DIR_HORIZ:
/* Horizontal Wire */
pos.x = last_x;
length.x -= dx;
break;
default:
pos.y = last_y;
length.y -= dy;
pos.x = last_x;
length.x -= dx;
}
}
else {
switch (wire->priv->direction) {
case WIRE_DIR_VERT:
/* Vertical Wire */
length.y += dy;
break;
case WIRE_DIR_HORIZ:
/* Horizontal Wire */
length.x += dx;
break;
default:
length.y += dy;
length.x += dx;
}
}
snap_to_grid (sheet->grid, &length.x, &length.y);
item_data_set_pos (sheet_item_get_data (SHEET_ITEM (wire_item)),
&pos);
wire_set_length (wire, &length);
return TRUE;
}
break;
case GDK_BUTTON_RELEASE:
switch (event->button.button) {
case 1:
if (sheet->state != SHEET_STATE_DRAG &&
sheet->state != SHEET_STATE_DRAG_START) {
break;
}
if (wire_item->priv->resize_state == WIRE_RESIZER_NONE) {
break;
}
g_signal_stop_emission_by_name (wire_item,
"button-release-event");
goo_canvas_pointer_ungrab (canvas, GOO_CANVAS_ITEM (wire_item),
event->button.time);
wire_item->priv->resize_state = WIRE_RESIZER_NONE;
sheet->state = SHEET_STATE_NONE;
item_data_register (ITEM_DATA (wire));
return TRUE;
}
break;
default:
return sheet_item_event (GOO_CANVAS_ITEM (wire_item),
GOO_CANVAS_ITEM (wire_item), event, sheet);
}
return sheet_item_event (GOO_CANVAS_ITEM (wire_item),
GOO_CANVAS_ITEM (wire_item), event, sheet);
}
static
int wire_item_event (WireItem *wire_item, const GdkEvent *event, SchematicView *sv)
{
SheetPos start_pos, length;
Wire *wire;
Sheet *sheet;
GnomeCanvas *canvas;
static double last_x, last_y;
double dx, dy, zoom;
/* The selected group's bounding box in window resp. canvas coordinates. */
double x1, y1, x2, y2;
static double bb_x1, bb_y1, bb_x2, bb_y2;
int cx1, cy1, cx2, cy2;
double snapped_x, snapped_y;
int sheet_width, sheet_height;
SheetPos pos;
sheet = schematic_view_get_sheet (sv);
canvas = GNOME_CANVAS (sheet);
g_object_get (G_OBJECT (wire_item), "data", &wire, NULL);
wire_get_pos_and_length (WIRE (wire), &start_pos, &length);
sheet_get_zoom (sheet, &zoom);
switch (event->type) {
case GDK_BUTTON_PRESS:
switch (event->button.button) {
case 1: {
g_signal_stop_emission_by_name (G_OBJECT (sheet), "event");
double x, y;
x = event->button.x - start_pos.x;
y = event->button.y - start_pos.y;
if ((x > -RESIZER_SIZE) && (x < RESIZER_SIZE) &&
(y > -RESIZER_SIZE) && (y < RESIZER_SIZE)) {
gtk_widget_grab_focus (GTK_WIDGET (sheet));
sheet->state = SHEET_STATE_DRAG_START;
wire_item->priv->resize_state = WIRE_RESIZER_1;
last_x = event->button.x;
last_y = event->button.y;
item_data_unregister (ITEM_DATA (wire));
return TRUE;
}
if ((x > (length.x-RESIZER_SIZE)) && (x < (length.x+RESIZER_SIZE)) &&
(y > (length.y-RESIZER_SIZE)) && (y < (length.y+RESIZER_SIZE))) {
gtk_widget_grab_focus (GTK_WIDGET (sheet));
sheet->state = SHEET_STATE_DRAG_START;
wire_item->priv->resize_state = WIRE_RESIZER_2;
last_x = event->button.x;
last_y = event->button.y;
item_data_unregister (ITEM_DATA (wire));
return TRUE;
}
}
break;
}
break;
case GDK_MOTION_NOTIFY:
if (sheet->state != SHEET_STATE_DRAG &&
sheet->state != SHEET_STATE_DRAG_START)
break;
if (wire_item->priv->resize_state == WIRE_RESIZER_NONE)
break;
if (sheet->state == SHEET_STATE_DRAG_START || sheet->state == SHEET_STATE_DRAG) {
sheet->state = SHEET_STATE_DRAG;
snapped_x = event->motion.x;
snapped_y = event->motion.y;
snap_to_grid (sheet->grid, &snapped_x, &snapped_y);
dx = snapped_x - last_x;
dy = snapped_y - last_y;
last_x = snapped_x;
last_y = snapped_y;
wire_get_pos_and_length (wire, &pos, &length);
if (wire_item->priv->resize_state == WIRE_RESIZER_1) {
switch (wire->priv->direction) {
case WIRE_DIR_VERT:
/* Vertical Wire */
pos.y = last_y;
length.y -= dy;
break;
case WIRE_DIR_HORIZ:
/* Horizontal Wire */
pos.x = last_x;
length.x -= dx;
break;
default:
pos.y = last_y;
length.y -= dy;
pos.x = last_x;
length.x -= dx;
}
} else {
switch (wire->priv->direction) {
case WIRE_DIR_VERT:
/* Vertical Wire */
length.y += dy;
break;
case WIRE_DIR_HORIZ:
/* Horizontal Wire */
length.x += dx;
break;
default:
length.y += dy;
length.x += dx;
}
}
snap_to_grid (sheet->grid, &length.x, &length.y);
item_data_set_pos (sheet_item_get_data (SHEET_ITEM (wire_item)), &pos);
wire_set_length (wire, &length);
return TRUE;
}
break;
case GDK_BUTTON_RELEASE:
switch (event->button.button) {
case 1:
if (sheet->state != SHEET_STATE_DRAG &&
sheet->state != SHEET_STATE_DRAG_START)
break;
if (wire_item->priv->resize_state == WIRE_RESIZER_NONE)
break;
g_signal_stop_emission_by_name (G_OBJECT (wire_item), "event");
//gtk_timeout_remove (priv->scroll_timeout_id); // Esto no esta bien.
sheet->state = SHEET_STATE_NONE;
gnome_canvas_item_ungrab (GNOME_CANVAS_ITEM (wire_item), event->button.time);
wire_item->priv->resize_state = WIRE_RESIZER_NONE;
sheet->state = SHEET_STATE_NONE;
item_data_register (ITEM_DATA (wire));
return TRUE;
}
break;
default:
return sheet_item_event (SHEET_ITEM (wire_item), event, sv);
}
return sheet_item_event (SHEET_ITEM (wire_item), event, sv);
}