src/desktop-events.cpp

   1 /** @file
   2  * @brief Event handlers for SPDesktop
   3  */
   4 /* Author:
   5  *   Lauris Kaplinski <lauris@kaplinski.com>
   6  *
   7  * Copyright (C) 1999-2002 Lauris Kaplinski
   8  * Copyright (C) 1999-2010 Others
   9  *
  10  * Released under GNU GPL, read the file 'COPYING' for more information
  11  */
  12
  13 #ifdef HAVE_CONFIG_H
  14 # include <config.h>
  15 #endif
  16 #include <map>
  17 #include <string>
  18 #include <2geom/line.h>
  19 #include <glibmm/i18n.h>
  20
  21 #include "desktop.h"
  22 #include "desktop-handles.h"
  23 #include "dialogs/dialog-events.h"
  24 #include "display/canvas-axonomgrid.h"
  25 #include "display/canvas-grid.h"
  26 #include "display/guideline.h"
  27 #include "display/snap-indicator.h"
  28 #include "document.h"
  29 #include "event-context.h"
  30 #include "helper/action.h"
  31 #include "helper/unit-menu.h"
  32 #include "helper/units.h"
  33 #include "message-context.h"
  34 #include "preferences.h"
  35 #include "snap.h"
  36 #include "sp-guide.h"
  37 #include "sp-metrics.h"
  38 #include "sp-namedview.h"
  39 #include "tools-switch.h"
  40 #include "ui/dialog/guides.h"
  41 #include "widgets/desktop-widget.h"
  42 #include "xml/repr.h"
  43
  44 static void snoop_extended(GdkEvent* event, SPDesktop *desktop);
  45 static void init_extended();
  46
  47 /* Root item handler */
  48
  49 int sp_desktop_root_handler(SPCanvasItem */*item*/, GdkEvent *event, SPDesktop *desktop)
  50 {
  51     static bool watch = false;
  52     static bool first = true;
  53
  54     if ( first ) {
  55         Inkscape::Preferences *prefs = Inkscape::Preferences::get();
  56         if ( prefs->getBool("/options/useextinput/value", true)
  57             && prefs->getBool("/options/switchonextinput/value") ) {
  58             watch = true;
  59             init_extended();
  60         }
  61         first = false;
  62     }
  63     if ( watch ) {
  64         snoop_extended(event, desktop);
  65     }
  66
  67     return sp_event_context_root_handler(desktop->event_context, event);
  68 }
  69
  70 static gint sp_dt_ruler_event(GtkWidget *widget, GdkEvent *event, SPDesktopWidget *dtw, bool horiz)
  71 {
  72     static bool dragging = false;
  73     static SPCanvasItem *guide = NULL;
  74     static Geom::Point normal;
  75     int wx, wy;
  76
  77     SPDesktop *desktop = dtw->desktop;
  78     Inkscape::XML::Node *repr = SP_OBJECT_REPR(desktop->namedview);
  79
  80     gdk_window_get_pointer(GTK_WIDGET(dtw->canvas)->window, &wx, &wy, NULL);
  81     Geom::Point const event_win(wx, wy);
  82
  83     gint width, height;
  84     gdk_window_get_geometry(GTK_WIDGET(dtw->canvas)->window, NULL /*x*/, NULL /*y*/, &width, &height, NULL/*depth*/);
  85
  86     switch (event->type) {
  87     case GDK_BUTTON_PRESS:
  88             if (event->button.button == 1) {
  89                 dragging = true;
  90
  91                 Geom::Point const event_w(sp_canvas_window_to_world(dtw->canvas, event_win));
  92                 Geom::Point const event_dt(desktop->w2d(event_w));
  93
  94                 // explicitly show guidelines; if I draw a guide, I want them on
  95                 sp_repr_set_boolean(repr, "showguides", TRUE);
  96                 sp_repr_set_boolean(repr, "inkscape:guide-bbox", TRUE);
  97
  98                 // calculate the normal of the guidelines when dragged from the edges of rulers.
  99                 Geom::Point normal_bl_to_tr(-1.,1.); //bottomleft to topright
 100                 Geom::Point normal_tr_to_bl(1.,1.); //topright to bottomleft
 101                 normal_bl_to_tr.normalize();
 102                 normal_tr_to_bl.normalize();
 103                 Inkscape::CanvasGrid * grid = sp_namedview_get_first_enabled_grid(desktop->namedview);
 104                 if ( grid && grid->getGridType() == Inkscape::GRID_AXONOMETRIC ) {
 105                     Inkscape::CanvasAxonomGrid *axonomgrid = dynamic_cast<Inkscape::CanvasAxonomGrid *>(grid);
 106                     if (event->button.state & GDK_CONTROL_MASK) {
 107                         // guidelines normal to gridlines
 108                         normal_bl_to_tr = Geom::Point::polar(-axonomgrid->angle_rad[0], 1.0);
 109                         normal_tr_to_bl = Geom::Point::polar(axonomgrid->angle_rad[2], 1.0);
 110                     } else {
 111                         normal_bl_to_tr = rot90(Geom::Point::polar(axonomgrid->angle_rad[2], 1.0));
 112                         normal_tr_to_bl = rot90(Geom::Point::polar(-axonomgrid->angle_rad[0], 1.0));
 113                     }
 114                 }
 115                 if (horiz) {
 116                     if (wx < 50) {
 117                         normal = normal_bl_to_tr;
 118                     } else if (wx > width - 50) {
 119                         normal = normal_tr_to_bl;
 120                     } else {
 121                         normal = Geom::Point(0.,1.);
 122                     }
 123                 } else {
 124                     if (wy < 50) {
 125                         normal = normal_bl_to_tr;
 126                     } else if (wy > height - 50) {
 127                         normal = normal_tr_to_bl;
 128                     } else {
 129                         normal = Geom::Point(1.,0.);
 130                     }
 131                 }
 132
 133                 guide = sp_guideline_new(desktop->guides, event_dt, normal);
 134                 sp_guideline_set_color(SP_GUIDELINE(guide), desktop->namedview->guidehicolor);
 135                 gdk_pointer_grab(widget->window, FALSE,
 136                                  (GdkEventMask)(GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK ),
 137                                  NULL, NULL,
 138                                  event->button.time);
 139             }
 140             break;
 141     case GDK_MOTION_NOTIFY:
 142             if (dragging) {
 143                 Geom::Point const event_w(sp_canvas_window_to_world(dtw->canvas, event_win));
 144                 Geom::Point event_dt(desktop->w2d(event_w));
 145
 146                 if (!(event->motion.state & GDK_SHIFT_MASK)) {
 147                     SnapManager &m = desktop->namedview->snap_manager;
 148                     m.setup(desktop);
 149                     // We only have a temporary guide which is not stored in our document yet.
 150                     // Because the guide snapper only looks in the document for guides to snap to,
 151                     // we don't have to worry about a guide snapping to itself here
 152                     m.guideFreeSnap(event_dt, normal, SP_DRAG_MOVE_ORIGIN);
 153                     m.unSetup();
 154                 }
 155
 156                 sp_guideline_set_position(SP_GUIDELINE(guide), from_2geom(event_dt));
 157                 desktop->set_coordinate_status(to_2geom(event_dt));
 158                 desktop->setPosition(to_2geom(event_dt));
 159             }
 160             break;
 161     case GDK_BUTTON_RELEASE:
 162             if (dragging && event->button.button == 1) {
 163                 sp_event_context_discard_delayed_snap_event(desktop->event_context);
 164
 165                 gdk_pointer_ungrab(event->button.time);
 166                 Geom::Point const event_w(sp_canvas_window_to_world(dtw->canvas, event_win));
 167                 Geom::Point event_dt(desktop->w2d(event_w));
 168
 169                 if (!(event->button.state & GDK_SHIFT_MASK)) {
 170                     SnapManager &m = desktop->namedview->snap_manager;
 171                     m.setup(desktop);
 172                     // We only have a temporary guide which is not stored in our document yet.
 173                     // Because the guide snapper only looks in the document for guides to snap to,
 174                     // we don't have to worry about a guide snapping to itself here
 175                     m.guideFreeSnap(event_dt, normal, SP_DRAG_MOVE_ORIGIN);
 176                     m.unSetup();
 177                 }
 178
 179                 dragging = false;
 180
 181                 gtk_object_destroy(GTK_OBJECT(guide));
 182                 guide = NULL;
 183                 if ((horiz ? wy : wx) >= 0) {
 184                     Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
 185                     Inkscape::XML::Node *repr = xml_doc->createElement("sodipodi:guide");
 186                     sp_repr_set_point(repr, "orientation", normal);
 187                     sp_repr_set_point(repr, "position", from_2geom(event_dt));
 188                     SP_OBJECT_REPR(desktop->namedview)->appendChild(repr);
 189                     Inkscape::GC::release(repr);
 190                     sp_document_done(sp_desktop_document(desktop), SP_VERB_NONE,
 191                                      _("Create guide"));
 192                 }
 193                 desktop->set_coordinate_status(from_2geom(event_dt));
 194             }
 195     default:
 196             break;
 197     }
 198
 199     return FALSE;
 200 }
 201
 202 int sp_dt_hruler_event(GtkWidget *widget, GdkEvent *event, SPDesktopWidget *dtw)
 203 {
 204     if (event->type == GDK_MOTION_NOTIFY) {
 205         sp_event_context_snap_delay_handler(dtw->desktop->event_context, (gpointer) widget, (gpointer) dtw, (GdkEventMotion *)event, DelayedSnapEvent::GUIDE_HRULER);
 206     }
 207     return sp_dt_ruler_event(widget, event, dtw, true);
 208 }
 209
 210 int sp_dt_vruler_event(GtkWidget *widget, GdkEvent *event, SPDesktopWidget *dtw)
 211 {
 212     if (event->type == GDK_MOTION_NOTIFY) {
 213         sp_event_context_snap_delay_handler(dtw->desktop->event_context, (gpointer) widget, (gpointer) dtw, (GdkEventMotion *)event, DelayedSnapEvent::GUIDE_VRULER);
 214     }
 215     return sp_dt_ruler_event(widget, event, dtw, false);
 216 }
 217
 218 static Geom::Point drag_origin;
 219 static SPGuideDragType drag_type = SP_DRAG_NONE;
 220 //static bool reset_drag_origin = false; // when Ctrl is pressed while dragging, this is used to trigger resetting of the
 221 //                                       // drag origin to that location so that constrained movement is more intuitive
 222
 223 // Min distance from anchor to initiate rotation, measured in screenpixels
 224 #define tol 40.0
 225
 226 gint sp_dt_guide_event(SPCanvasItem *item, GdkEvent *event, gpointer data)
 227 {
 228     static bool moved = false;
 229     gint ret = FALSE;
 230
 231     SPGuide *guide = SP_GUIDE(data);
 232     SPDesktop *desktop = static_cast<SPDesktop*>(gtk_object_get_data(GTK_OBJECT(item->canvas), "SPDesktop"));
 233
 234     switch (event->type) {
 235     case GDK_2BUTTON_PRESS:
 236             if (event->button.button == 1) {
 237                 drag_type = SP_DRAG_NONE;
 238                 sp_event_context_discard_delayed_snap_event(desktop->event_context);
 239                 sp_canvas_item_ungrab(item, event->button.time);
 240                 Inkscape::UI::Dialogs::GuidelinePropertiesDialog::showDialog(guide, desktop);
 241                 ret = TRUE;
 242             }
 243             break;
 244     case GDK_BUTTON_PRESS:
 245             if (event->button.button == 1) {
 246                 Geom::Point const event_w(event->button.x, event->button.y);
 247                 Geom::Point const event_dt(desktop->w2d(event_w));
 248
 249                 // Due to the tolerance allowed when grabbing a guide, event_dt will generally
 250                 // be close to the guide but not just exactly on it. The drag origin calculated
 251                 // here must be exactly on the guide line though, otherwise
 252                 // small errors will occur once we snap, see
 253                 // https://bugs.launchpad.net/inkscape/+bug/333762
 254                 drag_origin = Geom::projection(event_dt, Geom::Line(guide->point_on_line, guide->angle()));
 255
 256                 if (event->button.state & GDK_SHIFT_MASK) {
 257                     // with shift we rotate the guide
 258                     drag_type = SP_DRAG_ROTATE;
 259                 } else {
 260                     if (event->button.state & GDK_CONTROL_MASK) {
 261                         drag_type = SP_DRAG_MOVE_ORIGIN;
 262                     } else {
 263                         drag_type = SP_DRAG_TRANSLATE;
 264                     }
 265                 }
 266
 267                 if (drag_type == SP_DRAG_ROTATE || drag_type == SP_DRAG_TRANSLATE) {
 268                     sp_canvas_item_grab(item,
 269                                         ( GDK_BUTTON_RELEASE_MASK  |
 270                                           GDK_BUTTON_PRESS_MASK    |
 271                                           GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK ),
 272                                         NULL,
 273                                         event->button.time);
 274                 }
 275                 ret = TRUE;
 276             }
 277             break;
 278         case GDK_MOTION_NOTIFY:
 279             if (drag_type != SP_DRAG_NONE) {
 280                 Geom::Point const motion_w(event->motion.x,
 281                                            event->motion.y);
 282                 Geom::Point motion_dt(desktop->w2d(motion_w));
 283
 284                 sp_event_context_snap_delay_handler(desktop->event_context, (gpointer) item, data, (GdkEventMotion *)event, DelayedSnapEvent::GUIDE_HANDLER);
 285
 286                 // This is for snapping while dragging existing guidelines. New guidelines,
 287                 // which are dragged off the ruler, are being snapped in sp_dt_ruler_event
 288                 SnapManager &m = desktop->namedview->snap_manager;
 289                 m.setup(desktop, true, NULL, NULL, guide);
 290                 if (drag_type == SP_DRAG_MOVE_ORIGIN) {
 291                     // If we snap in guideConstrainedSnap() below, then motion_dt will
 292                     // be forced to be on the guide. If we don't snap however, then
 293                     // the origin should still be constrained to the guide. So let's do
 294                     // that explicitly first:
 295                     Geom::Line line(guide->point_on_line, guide->angle());
 296                     Geom::Coord t = line.nearestPoint(motion_dt);
 297                     motion_dt = line.pointAt(t);
 298                     if (!(event->motion.state & GDK_SHIFT_MASK)) {
 299                         m.guideConstrainedSnap(motion_dt, *guide);
 300                     }
 301                 } else if (!((drag_type == SP_DRAG_ROTATE) && (event->motion.state & GDK_CONTROL_MASK))) {
 302                     // cannot use shift here to disable snapping, because we already use it for rotating the guide
 303                     m.guideFreeSnap(motion_dt, guide->normal_to_line, drag_type);
 304                 }
 305                 m.unSetup();
 306
 307                 switch (drag_type) {
 308                     case SP_DRAG_TRANSLATE:
 309                     {
 310                         sp_guide_moveto(*guide, motion_dt, false);
 311                         break;
 312                     }
 313                     case SP_DRAG_ROTATE:
 314                     {
 315                         Geom::Point pt = motion_dt - guide->point_on_line;
 316                         double angle = std::atan2(pt[Geom::Y], pt[Geom::X]);
 317                         if (event->motion.state & GDK_CONTROL_MASK) {
 318                             Inkscape::Preferences *prefs = Inkscape::Preferences::get();
 319                             unsigned const snaps = abs(prefs->getInt("/options/rotationsnapsperpi/value", 12));
 320                             if (snaps) {
 321                                 double sections = floor(angle * snaps / M_PI + .5);
 322                                 angle = (M_PI / snaps) * sections;
 323                             }
 324                         }
 325                         sp_guide_set_normal(*guide, Geom::Point(1,0) * Geom::Rotate(angle + M_PI_2), false);
 326                         break;
 327                     }
 328                     case SP_DRAG_MOVE_ORIGIN:
 329                     {
 330                         sp_guide_moveto(*guide, motion_dt, false);
 331                         break;
 332                     }
 333                     case SP_DRAG_NONE:
 334                         g_assert_not_reached();
 335                         break;
 336                 }
 337                 moved = true;
 338                 desktop->set_coordinate_status(from_2geom(motion_dt));
 339                 desktop->setPosition(from_2geom(motion_dt));
 340
 341                 ret = TRUE;
 342             }
 343             break;
 344     case GDK_BUTTON_RELEASE:
 345             if (drag_type != SP_DRAG_NONE && event->button.button == 1) {
 346                 sp_event_context_discard_delayed_snap_event(desktop->event_context);
 347
 348                 if (moved) {
 349                     Geom::Point const event_w(event->button.x,
 350                                               event->button.y);
 351                     Geom::Point event_dt(desktop->w2d(event_w));
 352
 353                     SnapManager &m = desktop->namedview->snap_manager;
 354                     m.setup(desktop, true, NULL, NULL, guide);
 355                     if (drag_type == SP_DRAG_MOVE_ORIGIN) {
 356                         // If we snap in guideConstrainedSnap() below, then motion_dt will
 357                         // be forced to be on the guide. If we don't snap however, then
 358                         // the origin should still be constrained to the guide. So let's
 359                         // do that explicitly first:
 360                         Geom::Line line(guide->point_on_line, guide->angle());
 361                         Geom::Coord t = line.nearestPoint(event_dt);
 362                         event_dt = line.pointAt(t);
 363                         if (!(event->button.state & GDK_SHIFT_MASK)) {
 364                             m.guideConstrainedSnap(event_dt, *guide);
 365                         }
 366                     } else if (!((drag_type == SP_DRAG_ROTATE) && (event->motion.state & GDK_CONTROL_MASK))) {
 367                         // cannot use shift here to disable snapping, because we already use it for rotating the guide
 368                         m.guideFreeSnap(event_dt, guide->normal_to_line, drag_type);
 369                     }
 370                     m.unSetup();
 371
 372                     if (sp_canvas_world_pt_inside_window(item->canvas, event_w)) {
 373                         switch (drag_type) {
 374                             case SP_DRAG_TRANSLATE:
 375                             {
 376                                 sp_guide_moveto(*guide, event_dt, true);
 377                                 break;
 378                             }
 379                             case SP_DRAG_ROTATE:
 380                             {
 381                                 Geom::Point pt = event_dt - guide->point_on_line;
 382                                 double angle = std::atan2(pt[Geom::Y], pt[Geom::X]);
 383                                 if  (event->motion.state & GDK_CONTROL_MASK) {
 384                                     Inkscape::Preferences *prefs = Inkscape::Preferences::get();
 385                                     unsigned const snaps = abs(prefs->getInt("/options/rotationsnapsperpi/value", 12));
 386                                     if (snaps) {
 387                                         double sections = floor(angle * snaps / M_PI + .5);
 388                                         angle = (M_PI / snaps) * sections;
 389                                     }
 390                                 }
 391                                 sp_guide_set_normal(*guide, Geom::Point(1,0) * Geom::Rotate(angle + M_PI_2), true);
 392                                 break;
 393                             }
 394                             case SP_DRAG_MOVE_ORIGIN:
 395                             {
 396                                 sp_guide_moveto(*guide, event_dt, true);
 397                                 break;
 398                             }
 399                             case SP_DRAG_NONE:
 400                                 g_assert_not_reached();
 401                                 break;
 402                         }
 403                         sp_document_done(sp_desktop_document(desktop), SP_VERB_NONE,
 404                                          _("Move guide"));
 405                     } else {
 406                         /* Undo movement of any attached shapes. */
 407                         sp_guide_moveto(*guide, guide->point_on_line, false);
 408                         sp_guide_set_normal(*guide, guide->normal_to_line, false);
 409                         sp_guide_remove(guide);
 410                         sp_document_done(sp_desktop_document(desktop), SP_VERB_NONE,
 411                                      _("Delete guide"));
 412                     }
 413                     moved = false;
 414                     desktop->set_coordinate_status(from_2geom(event_dt));
 415                     desktop->setPosition (from_2geom(event_dt));
 416                 }
 417                 drag_type = SP_DRAG_NONE;
 418                 sp_canvas_item_ungrab(item, event->button.time);
 419                 ret=TRUE;
 420             }
 421     case GDK_ENTER_NOTIFY:
 422     {
 423             sp_guideline_set_color(SP_GUIDELINE(item), guide->hicolor);
 424
 425             // set move or rotate cursor
 426             Geom::Point const event_w(event->crossing.x, event->crossing.y);
 427             Geom::Point const event_dt(desktop->w2d(event_w));
 428
 429             if ((event->crossing.state & GDK_SHIFT_MASK) && (drag_type != SP_DRAG_MOVE_ORIGIN)) {
 430                 GdkCursor *guide_cursor;
 431                 guide_cursor = gdk_cursor_new (GDK_EXCHANGE);
 432                 gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, guide_cursor);
 433                 gdk_cursor_unref(guide_cursor);
 434             }
 435
 436             char *guide_description = sp_guide_description(guide);
 437             desktop->guidesMessageContext()->setF(Inkscape::NORMAL_MESSAGE, _("<b>Guideline</b>: %s"), guide_description);
 438             g_free(guide_description);
 439             break;
 440     }
 441     case GDK_LEAVE_NOTIFY:
 442             sp_guideline_set_color(SP_GUIDELINE(item), guide->color);
 443
 444             // restore event context's cursor
 445             gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, desktop->event_context->cursor);
 446
 447             desktop->guidesMessageContext()->clear();
 448             break;
 449         case GDK_KEY_PRESS:
 450             switch (get_group0_keyval (&event->key)) {
 451                 case GDK_Delete:
 452                 case GDK_KP_Delete:
 453                 case GDK_BackSpace:
 454                 {
 455                     SPDocument *doc = SP_OBJECT_DOCUMENT(guide);
 456                     sp_guide_remove(guide);
 457                     sp_document_done(doc, SP_VERB_NONE, _("Delete guide"));
 458                     ret = TRUE;
 459                     sp_event_context_discard_delayed_snap_event(desktop->event_context);
 460                     break;
 461                 }
 462                 case GDK_Shift_L:
 463                 case GDK_Shift_R:
 464                     if (drag_type != SP_DRAG_MOVE_ORIGIN) {
 465                         GdkCursor *guide_cursor;
 466                         guide_cursor = gdk_cursor_new (GDK_EXCHANGE);
 467                         gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, guide_cursor);
 468                         gdk_cursor_unref(guide_cursor);
 469                         ret = TRUE;
 470                         break;
 471                     }
 472
 473                 default:
 474                     // do nothing;
 475                     break;
 476             }
 477             break;
 478         case GDK_KEY_RELEASE:
 479             switch (get_group0_keyval (&event->key)) {
 480                 case GDK_Shift_L:
 481                 case GDK_Shift_R:
 482                     GdkCursor *guide_cursor;
 483                     guide_cursor = gdk_cursor_new (GDK_EXCHANGE);
 484                     gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, guide_cursor);
 485                     gdk_cursor_unref(guide_cursor);
 486                     break;
 487                 default:
 488                     // do nothing;
 489                     break;
 490             }
 491     default:
 492         break;
 493     }
 494
 495     return ret;
 496 }
 497
 498 //static std::map<GdkInputSource, std::string> switchMap;
 499 static std::map<std::string, int> toolToUse;
 500 static std::string lastName;
 501 static GdkInputSource lastType = GDK_SOURCE_MOUSE;
 502
 503 static void init_extended()
 504 {
 505     std::string avoidName = "pad";
 506     GList* devices = gdk_devices_list();
 507     if ( devices ) {
 508         for ( GList* curr = devices; curr; curr = g_list_next(curr) ) {
 509             GdkDevice* dev = reinterpret_cast<GdkDevice*>(curr->data);
 510             if ( dev->name
 511                  && (avoidName != dev->name)
 512                  && (dev->source != GDK_SOURCE_MOUSE) ) {
 513 //                 g_message("Adding '%s' as [%d]", dev->name, dev->source);
 514
 515                 // Set the initial tool for the device
 516                 switch ( dev->source ) {
 517                     case GDK_SOURCE_PEN:
 518                         toolToUse[dev->name] = TOOLS_CALLIGRAPHIC;
 519                         break;
 520                     case GDK_SOURCE_ERASER:
 521                         toolToUse[dev->name] = TOOLS_ERASER;
 522                         break;
 523                     case GDK_SOURCE_CURSOR:
 524                         toolToUse[dev->name] = TOOLS_SELECT;
 525                         break;
 526                     default:
 527                         ; // do not add
 528                 }
 529 //            } else if (dev->name) {
 530 //                 g_message("Skippn '%s' as [%s]", dev->name, dev->source);
 531             }
 532         }
 533     }
 534 }
 535
 536
 537 void snoop_extended(GdkEvent* event, SPDesktop *desktop)
 538 {
 539     GdkInputSource source = GDK_SOURCE_MOUSE;
 540     std::string name;
 541
 542     switch ( event->type ) {
 543         case GDK_MOTION_NOTIFY:
 544         {
 545             GdkEventMotion* event2 = reinterpret_cast<GdkEventMotion*>(event);
 546             if ( event2->device ) {
 547                 source = event2->device->source;
 548                 name = event2->device->name;
 549             }
 550         }
 551         break;
 552
 553         case GDK_BUTTON_PRESS:
 554         case GDK_2BUTTON_PRESS:
 555         case GDK_3BUTTON_PRESS:
 556         case GDK_BUTTON_RELEASE:
 557         {
 558             GdkEventButton* event2 = reinterpret_cast<GdkEventButton*>(event);
 559             if ( event2->device ) {
 560                 source = event2->device->source;
 561                 name = event2->device->name;
 562             }
 563         }
 564         break;
 565
 566         case GDK_SCROLL:
 567         {
 568             GdkEventScroll* event2 = reinterpret_cast<GdkEventScroll*>(event);
 569             if ( event2->device ) {
 570                 source = event2->device->source;
 571                 name = event2->device->name;
 572             }
 573         }
 574         break;
 575
 576         case GDK_PROXIMITY_IN:
 577         case GDK_PROXIMITY_OUT:
 578         {
 579             GdkEventProximity* event2 = reinterpret_cast<GdkEventProximity*>(event);
 580             if ( event2->device ) {
 581                 source = event2->device->source;
 582                 name = event2->device->name;
 583             }
 584         }
 585         break;
 586
 587         default:
 588             ;
 589     }
 590
 591     if (!name.empty()) {
 592         if ( lastType != source || lastName != name ) {
 593             // The device switched. See if it is one we 'count'
 594             //g_message("Changed device %s -> %s", lastName.c_str(), name.c_str());
 595             std::map<std::string, int>::iterator it = toolToUse.find(lastName);
 596             if (it != toolToUse.end()) {
 597                 // Save the tool currently selected for next time the input
 598                 // device shows up.
 599                 it->second = tools_active(desktop);
 600             }
 601
 602             it = toolToUse.find(name);
 603             if (it != toolToUse.end() ) {
 604                 tools_switch(desktop, it->second);
 605             }
 606
 607             lastName = name;
 608             lastType = source;
 609         }
 610     }
 611 }
 612
 613
 614
 615 /*
 616   Local Variables:
 617   mode:c++
 618   c-file-style:"stroustrup"
 619   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 620   indent-tabs-mode:nil
 621   fill-column:99
 622   End:
 623 */
 624 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
 625