static void textbox_flip (ItemData *data, gboolean horizontal, SheetPos *center) { double affine[6]; ArtPoint src, dst; Textbox *textbox; TextboxPriv *priv; SheetPos b1, b2; SheetPos textbox_center, delta; g_return_if_fail (data != NULL); g_return_if_fail (IS_TEXTBOX (data)); textbox = TEXTBOX (data); if (center) { item_data_get_absolute_bbox (ITEM_DATA (textbox), &b1, &b2); textbox_center.x = b1.x + (b2.x - b1.x) / 2; textbox_center.y = b1.y + (b2.y - b1.y) / 2; } priv = textbox->priv; if (horizontal) art_affine_scale (affine, -1, 1); else art_affine_scale (affine, 1, -1); /* * Let the views (canvas items) know about the rotation. */ g_signal_emit_by_name(G_OBJECT (textbox), "flipped", horizontal); if (center) { SheetPos textbox_pos; item_data_get_pos (ITEM_DATA (textbox), &textbox_pos); src.x = textbox_center.x - center->x; src.y = textbox_center.y - center->y; art_affine_point (&dst, &src, affine); delta.x = -src.x + dst.x; delta.y = -src.y + dst.y; item_data_move (ITEM_DATA (textbox), &delta); } }
static void move_items (Sheet *sheet, GList *items, const Coords *trans) { GList *list; for (list = items; list; list = list->next) { g_assert (list->data != NULL); ItemData *item_data = sheet_item_get_data (list->data); g_assert (item_data != NULL); if (sheet->state == SHEET_STATE_NONE) item_data_unregister (item_data); item_data_move (item_data, trans); if (sheet->state == SHEET_STATE_NONE) item_data_register (item_data); } }
static void flip_items (Sheet *sheet, GList *items, gboolean horizontal) { GList *list, *item_data_list; SheetPos center, b1, b2; SheetPos after; item_data_list = NULL; for (list = items; list; list = list->next) { item_data_list = g_list_prepend (item_data_list, sheet_item_get_data (list->data)); } item_data_list_get_absolute_bbox (item_data_list, &b1, &b2); center.x = (b2.x + b1.x) / 2; center.y = (b2.y + b1.y) / 2; for (list = item_data_list; list; list = list->next) { ItemData *item_data = list->data; if (sheet->state == SHEET_STATE_NONE) item_data_unregister (item_data); item_data_flip (item_data, horizontal, ¢er); // Make sure we snap to grid. item_data_get_pos (item_data, &after); snap_to_grid (sheet->grid, &after.x, &after.y); item_data_move (item_data, &after); if (sheet->state == SHEET_STATE_NONE) item_data_register (item_data); } g_list_free (item_data_list); g_list_free_full (list, g_object_unref); }
/** * rotate an item by an @angle increment (may be negative) * @angle the increment the item will be rotated (usually 90° steps) * @center_pos if rotated as part of a group, this is the center to rotate around * FIXME XXX TODO an issue arises as the center changes with part_rotate * FIXME XXX TODO the view callback needs to compensate this somehow */ static void part_rotate (ItemData *data, int angle, Coords *center_pos) { cairo_matrix_t affine; double x, y; Part *part; PartPriv *priv; int i, tot_rotation; Coords b1, b2; Coords part_center_before, part_center_after, delta; Coords delta_cp_before, delta_cp_after; gboolean handler_connected; g_return_if_fail (data); g_return_if_fail (IS_PART (data)); if (angle == 0) return; part = PART (data); priv = part->priv; tot_rotation = (priv->rotation + angle + 360) % 360; NG_DEBUG ("rotation: angle=%i tot_rotation=%i", angle, tot_rotation); // use the cairo matrix funcs to transform the pin // positions relative to the item center // this is only indirectly related to displaying cairo_matrix_init_rotate (&affine, (double)angle * M_PI / 180.); if (center_pos) { delta_cp_before = coords_sub (&part_center_before, center_pos); delta_cp_after = delta_cp_before; cairo_matrix_transform_point (&affine, &delta_cp_after.x, &delta_cp_after.y); } priv->rotation = tot_rotation; angle = tot_rotation; // Rotate the pins. for (i = 0; i < priv->num_pins; i++) { x = priv->pins[i].offset.x; y = priv->pins[i].offset.y; cairo_matrix_transform_point (&affine, &x, &y); if (fabs (x) < 1e-2) x = 0.0; if (fabs (y) < 1e-2) y = 0.0; priv->pins[i].offset.x = x; priv->pins[i].offset.y = y; } // Rotate the bounding box, recenter to old center item_data_get_relative_bbox (ITEM_DATA (part), &b1, &b2); part_center_before = coords_average (&b1, &b2); cairo_matrix_transform_point (&affine, &b1.x, &b1.y); cairo_matrix_transform_point (&affine, &b2.x, &b2.y); item_data_set_relative_bbox (ITEM_DATA (part), &b1, &b2); part_center_after = coords_average (&b1, &b2); delta = coords_sub (&part_center_before, &part_center_after); if (center_pos) { Coords diff = coords_sub (&delta_cp_after, &delta_cp_before); coords_add (&delta, &diff); } item_data_move (data, &delta); item_data_snap (data); handler_connected = g_signal_handler_is_connected (G_OBJECT (part), ITEM_DATA (part)->rotated_handler_id); if (handler_connected) { g_signal_emit_by_name (G_OBJECT (part), "rotated", tot_rotation); } handler_connected = g_signal_handler_is_connected (G_OBJECT (part), ITEM_DATA (part)->changed_handler_id); if (handler_connected) { g_signal_emit_by_name (G_OBJECT (part), "changed"); } }
static void wire_rotate (ItemData *data, int angle, Coords *center_pos) { cairo_matrix_t affine; double x, y; Wire *wire; WirePriv *priv; Coords b1, b2; Coords wire_center_before, wire_center_after, delta; Coords delta_cp_before, delta_cp_after; g_return_if_fail (data != NULL); g_return_if_fail (IS_WIRE (data)); if (angle == 0) return; wire = WIRE (data); item_data_get_absolute_bbox (ITEM_DATA (wire), &b1, &b2); wire_center_before = coords_average (&b1, &b2); priv = wire->priv; if (priv->direction == WIRE_DIR_VERT) { priv->direction = WIRE_DIR_HORIZ; } else if (priv->direction == WIRE_DIR_HORIZ) { priv->direction = WIRE_DIR_VERT; } cairo_matrix_init_rotate (&affine, (double)angle * M_PI / 180.0); // Rotate the wire's end point. x = priv->length.x; y = priv->length.y; cairo_matrix_transform_point (&affine, &x, &y); if (fabs (x) < 1e-2) x = 0.0; if (fabs (y) < 1e-2) y = 0.0; priv->length.x = x; priv->length.y = y; if (center_pos) { delta_cp_before = coords_sub (&wire_center_before, center_pos); delta_cp_after = delta_cp_before; cairo_matrix_transform_point (&affine, &delta_cp_after.x, &delta_cp_after.y); } // Update bounding box. wire_update_bbox (wire); item_data_get_absolute_bbox (ITEM_DATA (wire), &b1, &b2); wire_center_after = coords_average (&b1, &b2); delta = coords_sub (&wire_center_before, &wire_center_after); if (center_pos) { Coords diff = coords_sub (&delta_cp_after, &delta_cp_before); coords_add (&delta, &diff); } item_data_move (ITEM_DATA (wire), &delta); // item_data_snap (ITEM_DATA (wire), NULL); //FIXME XXX // Let the views (canvas items) know about the rotation. g_signal_emit_by_name (G_OBJECT (wire), "rotated", angle); // legacy g_signal_emit_by_name (G_OBJECT (wire), "changed"); }
// Event handler for a SheetItem gboolean sheet_item_event (GooCanvasItem *sheet_item, GooCanvasItem *sheet_target_item, GdkEvent *event, Sheet *sheet) { // Remember the last position of the mouse cursor. static double last_x, last_y; GooCanvas *canvas; SheetPriv *priv; GList *list; // Mouse cursor position in window coordinates, snapped to the grid spacing. double snapped_x, snapped_y; // Move the selected item(s) by this movement. double dx, dy; g_return_val_if_fail (sheet_item != NULL, FALSE); g_return_val_if_fail (sheet != NULL, FALSE); priv = sheet->priv; canvas = GOO_CANVAS (sheet); switch (event->type) { case GDK_BUTTON_PRESS: // Grab focus to sheet for correct use of events gtk_widget_grab_focus (GTK_WIDGET (sheet)); switch (event->button.button) { case 1: g_signal_stop_emission_by_name (sheet_item, "button_press_event"); sheet->state = SHEET_STATE_DRAG_START; sheet_get_pointer (sheet, &last_x, &last_y); break; case 3: g_signal_stop_emission_by_name (sheet_item, "button_press_event"); if (sheet->state != SHEET_STATE_NONE) return TRUE; // Bring up a context menu for right button clicks. if (!SHEET_ITEM (sheet_item)->priv->selected && !((event->button.state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)) sheet_select_all (sheet, FALSE); sheet_item_select (SHEET_ITEM (sheet_item), TRUE); sheet_item_run_menu (SHEET_ITEM (sheet_item), sheet, (GdkEventButton *) event); break; default: return FALSE; } break; case GDK_2BUTTON_PRESS: // Do not interfere with object dragging. if (sheet->state == SHEET_STATE_DRAG) return FALSE; switch (event->button.button) { case 1: if (sheet->state == SHEET_STATE_DRAG_START) sheet->state = SHEET_STATE_NONE; g_signal_stop_emission_by_name (sheet_item, "button_press_event"); g_signal_emit_by_name (sheet_item, "double_clicked"); break; default: return FALSE; } break; case GDK_3BUTTON_PRESS: g_signal_stop_emission_by_name (sheet_item, "button_press_event"); return TRUE; case GDK_BUTTON_RELEASE: switch (event->button.button) { case 1: if (sheet->state != SHEET_STATE_DRAG && sheet->state != SHEET_STATE_DRAG_START) return TRUE; g_signal_stop_emission_by_name (sheet_item, "button-release-event"); if (sheet->state == SHEET_STATE_DRAG_START) { sheet->state = SHEET_STATE_NONE; if (!(event->button.state & GDK_SHIFT_MASK)) sheet_select_all (sheet, FALSE); if (IS_SHEET_ITEM (sheet_item)) sheet_item_select (SHEET_ITEM (sheet_item), TRUE); return TRUE; } // Get the mouse motion sheet_get_pointer (sheet, &snapped_x, &snapped_y); snapped_x -= last_x; snapped_y -= last_y; sheet->state = SHEET_STATE_NONE; goo_canvas_pointer_ungrab (canvas, GOO_CANVAS_ITEM (sheet_item), event->button.time); // Reparent the selected objects to the normal group // to have correct behaviour for (list = priv->selected_objects; list; list = list->next) { sheet_item_reparent (SHEET_ITEM (list->data), sheet->object_group); } for (list = priv->selected_objects; list; list = list->next) { ItemData *item_data; Coords pos; item_data = SHEET_ITEM (list->data)->priv->data; pos.x = snapped_x; pos.y = snapped_y; item_data_move (item_data, &pos); item_data_register (item_data); } g_list_free_full (list, g_object_unref); break; } case GDK_KEY_PRESS: switch (event->key.keyval) { case GDK_KEY_r: sheet_rotate_selection (sheet); { gdouble x, y; GooCanvasBounds bounds; sheet_get_pointer (sheet, &x, &y); // Center the objects around the mouse pointer. goo_canvas_item_get_bounds ( GOO_CANVAS_ITEM (priv->floating_group), &bounds); dx = x - (bounds.x1 + bounds.x2) / 2; dy = y - (bounds.y1 + bounds.y2) / 2; snap_to_grid (sheet->grid, &dx, &dy); goo_canvas_item_translate ( GOO_CANVAS_ITEM (priv->floating_group), dx, dy); last_x = snapped_x; last_y = snapped_y; } break; default: return FALSE; } return TRUE; case GDK_MOTION_NOTIFY: if (sheet->state != SHEET_STATE_DRAG && sheet->state != SHEET_STATE_DRAG_START) return FALSE; if (sheet->state == SHEET_STATE_DRAG_START) { sheet->state = SHEET_STATE_DRAG; // Update the selection if needed. if (IS_SHEET_ITEM (sheet_item) && (!SHEET_ITEM (sheet_item)->priv->selected)) { if (!(event->button.state & GDK_SHIFT_MASK)) { sheet_select_all (sheet, FALSE); } sheet_item_select (SHEET_ITEM (sheet_item), TRUE); } // Reparent the selected objects so that we can move them // efficiently. for (list = priv->selected_objects; list; list = list->next) { ItemData *item_data; item_data = SHEET_ITEM (list->data)->priv->data; item_data_unregister (item_data); sheet_item_reparent (SHEET_ITEM (list->data), priv->selected_group); } goo_canvas_pointer_grab (canvas, GOO_CANVAS_ITEM (sheet_item), GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK, NULL, event->button.time); } // Set last_x & last_y to the pointer position sheet_get_pointer (sheet, &snapped_x, &snapped_y); dx = snapped_x - last_x; dy = snapped_y - last_y; // Check that we don't move outside the sheet... // Horizontally: /* if (cx1 <= 0) { // leftmost edge dx = dx - x1; snap_to_grid (sheet->grid, &dx, NULL); snapped_x = last_x + dx; } else if (cx2 >= sheet_width) { // rightmost edge dx = dx - (x2 - sheet_width / priv->zoom); snap_to_grid (sheet->grid, &dx, NULL); snapped_x = last_x + dx; } // And vertically: if (cy1 <= 0) { // upper edge dy = dy - y1; snap_to_grid (sheet->grid, NULL, &dy); snapped_y = last_y + dy; } else if (cy2 >= sheet_height) { // lower edge dy = dy - (y2 - sheet_height / priv->zoom); snap_to_grid (sheet->grid, NULL, &dy); snapped_y = last_y + dy; } //last_x = snapped_x; //last_y = snapped_y; */ goo_canvas_item_set_transform (GOO_CANVAS_ITEM (priv->selected_group), NULL); goo_canvas_item_translate (GOO_CANVAS_ITEM (priv->selected_group), dx, dy); return TRUE; default: return FALSE; } return TRUE; }
/** * \brief rotate an item by an @angle increment (may be negative) * * @angle the increment the item will be rotated (usually 90° steps) * @center_pos if rotated as part of a group, this is the center to rotate *around */ static void part_rotate (ItemData *data, int angle, Coords *center_pos) { g_return_if_fail (data); g_return_if_fail (IS_PART (data)); cairo_matrix_t morph, morph_rot, local_rot; Part *part; PartPriv *priv; gboolean handler_connected; // Coords b1, b2; part = PART (data); priv = part->priv; // FIXME store vanilla coords, apply the morph // FIXME to these and store the result in the // FIXME instance then everything will be fine // XXX also prevents rounding yiggle up downs angle /= 90; angle *= 90; cairo_matrix_init_rotate (&local_rot, (double)angle * M_PI / 180.); cairo_matrix_multiply (item_data_get_rotate (data), item_data_get_rotate (data), &local_rot); morph_rot = *(item_data_get_rotate (data)); cairo_matrix_multiply (&morph, &morph_rot, item_data_get_translate (data)); Coords delta_to_center, delta_to_center_transformed; Coords delta_to_apply, delta_bbox; Coords bbox_center, bbox_center_transformed; Coords item_pos; // get bbox #if 0 // this causes #115 to reappear item_data_get_relative_bbox (ITEM_DATA (part), &b1, &b2); bbox_center = coords_average (&b1, &b2); #endif item_data_get_pos (ITEM_DATA (part), &item_pos); Coords rotation_center; if (center_pos == NULL) { rotation_center = coords_sum (&bbox_center, &item_pos); } else { rotation_center = *center_pos; } delta_to_center_transformed = delta_to_center = coords_sub (&rotation_center, &item_pos); cairo_matrix_transform_point (&local_rot, &(delta_to_center_transformed.x), &(delta_to_center_transformed.y)); delta_to_apply = coords_sub (&delta_to_center, &delta_to_center_transformed); #define DEBUG_THIS 0 // use the cairo matrix funcs to transform the pin // positions relative to the item center // this is only indirectly related to displayin // HINT: we need to modify the actual pins to make the // pin tests work being used to detect connections gint i; gdouble x, y; // Rotate the pins. for (i = 0; i < priv->num_pins; i++) { x = priv->pins_orig[i].offset.x; y = priv->pins_orig[i].offset.y; cairo_matrix_transform_point (&morph_rot, &x, &y); if (fabs (x) < 1e-2) x = 0.0; if (fabs (y) < 1e-2) y = 0.0; priv->pins[i].offset.x = x; priv->pins[i].offset.y = y; } item_data_move (data, &delta_to_apply); handler_connected = g_signal_handler_is_connected (G_OBJECT (data), data->changed_handler_id); if (handler_connected) { g_signal_emit_by_name (G_OBJECT (data), "changed"); } else { NG_DEBUG ("handler not yet registerd."); } NG_DEBUG ("\n\n"); }