Code

emf import : recalculate text alignment for rotated text (Bug 341847)
[inkscape.git] / src / desktop-events.cpp
index cea478f85847c35d149ef913d8e6d63b32b26856..71c865879cba626876eb012fb6513d01e4c86e4c 100644 (file)
@@ -3,8 +3,10 @@
  */
 /* Author:
  *   Lauris Kaplinski <lauris@kaplinski.com>
+ *   Abhishek Sharma
  *
  * Copyright (C) 1999-2002 Lauris Kaplinski
+ * Copyright (C) 1999-2010 Others
  *
  * Released under GNU GPL, read the file 'COPYING' for more information
  */
@@ -40,6 +42,8 @@
 #include "widgets/desktop-widget.h"
 #include "xml/repr.h"
 
+using Inkscape::DocumentUndo;
+
 static void snoop_extended(GdkEvent* event, SPDesktop *desktop);
 static void init_extended();
 
@@ -74,7 +78,6 @@ static gint sp_dt_ruler_event(GtkWidget *widget, GdkEvent *event, SPDesktopWidge
     int wx, wy;
 
     SPDesktop *desktop = dtw->desktop;
-    Inkscape::XML::Node *repr = SP_OBJECT_REPR(desktop->namedview);
 
     gdk_window_get_pointer(GTK_WIDGET(dtw->canvas)->window, &wx, &wy, NULL);
     Geom::Point const event_win(wx, wy);
@@ -87,15 +90,11 @@ static gint sp_dt_ruler_event(GtkWidget *widget, GdkEvent *event, SPDesktopWidge
             if (event->button.button == 1) {
                 dragging = true;
 
-                // FIXME: The snap delay mechanism won't work here, because it has been implemented for the event context. Dragging
-                // guides off the ruler will send event to the ruler and not to the context, which bypasses sp_event_context_snap_delay_handler
-
                 Geom::Point const event_w(sp_canvas_window_to_world(dtw->canvas, event_win));
                 Geom::Point const event_dt(desktop->w2d(event_w));
 
                 // explicitly show guidelines; if I draw a guide, I want them on
-                sp_repr_set_boolean(repr, "showguides", TRUE);
-                sp_repr_set_boolean(repr, "inkscape:guide-bbox", TRUE);
+                desktop->namedview->setGuides(true);
 
                 // calculate the normal of the guidelines when dragged from the edges of rulers.
                 Geom::Point normal_bl_to_tr(-1.,1.); //bottomleft to topright
@@ -145,12 +144,15 @@ static gint sp_dt_ruler_event(GtkWidget *widget, GdkEvent *event, SPDesktopWidge
                 Geom::Point const event_w(sp_canvas_window_to_world(dtw->canvas, event_win));
                 Geom::Point event_dt(desktop->w2d(event_w));
 
-                SnapManager &m = desktop->namedview->snap_manager;
-                m.setup(desktop);
-                // We only have a temporary guide which is not stored in our document yet.
-                // Because the guide snapper only looks in the document for guides to snap to,
-                // we don't have to worry about a guide snapping to itself here
-                m.guideFreeSnap(event_dt, normal, SP_DRAG_MOVE_ORIGIN);
+                if (!(event->motion.state & GDK_SHIFT_MASK)) {
+                    SnapManager &m = desktop->namedview->snap_manager;
+                    m.setup(desktop);
+                    // We only have a temporary guide which is not stored in our document yet.
+                    // Because the guide snapper only looks in the document for guides to snap to,
+                    // we don't have to worry about a guide snapping to itself here
+                    m.guideFreeSnap(event_dt, normal, SP_DRAG_MOVE_ORIGIN);
+                    m.unSetup();
+                }
 
                 sp_guideline_set_position(SP_GUIDELINE(guide), from_2geom(event_dt));
                 desktop->set_coordinate_status(to_2geom(event_dt));
@@ -159,44 +161,39 @@ static gint sp_dt_ruler_event(GtkWidget *widget, GdkEvent *event, SPDesktopWidge
             break;
     case GDK_BUTTON_RELEASE:
             if (dragging && event->button.button == 1) {
+                sp_event_context_discard_delayed_snap_event(desktop->event_context);
+
                 gdk_pointer_ungrab(event->button.time);
                 Geom::Point const event_w(sp_canvas_window_to_world(dtw->canvas, event_win));
                 Geom::Point event_dt(desktop->w2d(event_w));
 
-                SnapManager &m = desktop->namedview->snap_manager;
-                m.setup(desktop);
-                // We only have a temporary guide which is not stored in our document yet.
-                // Because the guide snapper only looks in the document for guides to snap to,
-                // we don't have to worry about a guide snapping to itself here
-                m.guideFreeSnap(event_dt, normal, SP_DRAG_MOVE_ORIGIN);
+                if (!(event->button.state & GDK_SHIFT_MASK)) {
+                    SnapManager &m = desktop->namedview->snap_manager;
+                    m.setup(desktop);
+                    // We only have a temporary guide which is not stored in our document yet.
+                    // Because the guide snapper only looks in the document for guides to snap to,
+                    // we don't have to worry about a guide snapping to itself here
+                    m.guideFreeSnap(event_dt, normal, SP_DRAG_MOVE_ORIGIN);
+                    m.unSetup();
+                }
 
                 dragging = false;
 
-                sp_event_context_discard_delayed_snap_event(desktop->event_context);
-
                 gtk_object_destroy(GTK_OBJECT(guide));
                 guide = NULL;
                 if ((horiz ? wy : wx) >= 0) {
-                    Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
+                    Inkscape::XML::Document *xml_doc = desktop->doc()->getReprDoc();
                     Inkscape::XML::Node *repr = xml_doc->createElement("sodipodi:guide");
                     sp_repr_set_point(repr, "orientation", normal);
                     sp_repr_set_point(repr, "position", from_2geom(event_dt));
-                    SP_OBJECT_REPR(desktop->namedview)->appendChild(repr);
+                    desktop->namedview->appendChild(repr);
                     Inkscape::GC::release(repr);
-                    sp_document_done(sp_desktop_document(desktop), SP_VERB_NONE,
+                    DocumentUndo::done(sp_desktop_document(desktop), SP_VERB_NONE,
                                      _("Create guide"));
                 }
                 desktop->set_coordinate_status(from_2geom(event_dt));
-
-                // A dt_ruler_event might be emitted when dragging a guide of the rulers
-                // while drawing a Bezier curve. In such a situation, we're already in that
-                // specific context and the snap delay is already active. We should interfere
-                // with that context and we should therefore leave the snap delay status
-                // as it is. So although it might have been set to active above on
-                // GDK_BUTTON_PRESS, we should not set it back to inactive here. That must be
-                // done by the context.
             }
-       default:
+    default:
             break;
     }
 
@@ -205,11 +202,17 @@ static gint sp_dt_ruler_event(GtkWidget *widget, GdkEvent *event, SPDesktopWidge
 
 int sp_dt_hruler_event(GtkWidget *widget, GdkEvent *event, SPDesktopWidget *dtw)
 {
+    if (event->type == GDK_MOTION_NOTIFY) {
+        sp_event_context_snap_delay_handler(dtw->desktop->event_context, (gpointer) widget, (gpointer) dtw, (GdkEventMotion *)event, DelayedSnapEvent::GUIDE_HRULER);
+    }
     return sp_dt_ruler_event(widget, event, dtw, true);
 }
 
 int sp_dt_vruler_event(GtkWidget *widget, GdkEvent *event, SPDesktopWidget *dtw)
 {
+    if (event->type == GDK_MOTION_NOTIFY) {
+        sp_event_context_snap_delay_handler(dtw->desktop->event_context, (gpointer) widget, (gpointer) dtw, (GdkEventMotion *)event, DelayedSnapEvent::GUIDE_VRULER);
+    }
     return sp_dt_ruler_event(widget, event, dtw, false);
 }
 
@@ -230,7 +233,7 @@ gint sp_dt_guide_event(SPCanvasItem *item, GdkEvent *event, gpointer data)
     SPDesktop *desktop = static_cast<SPDesktop*>(gtk_object_get_data(GTK_OBJECT(item->canvas), "SPDesktop"));
 
     switch (event->type) {
-       case GDK_2BUTTON_PRESS:
+    case GDK_2BUTTON_PRESS:
             if (event->button.button == 1) {
                 drag_type = SP_DRAG_NONE;
                 sp_event_context_discard_delayed_snap_event(desktop->event_context);
@@ -239,7 +242,7 @@ gint sp_dt_guide_event(SPCanvasItem *item, GdkEvent *event, gpointer data)
                 ret = TRUE;
             }
             break;
-       case GDK_BUTTON_PRESS:
+    case GDK_BUTTON_PRESS:
             if (event->button.button == 1) {
                 Geom::Point const event_w(event->button.x, event->button.y);
                 Geom::Point const event_dt(desktop->w2d(event_w));
@@ -279,6 +282,8 @@ gint sp_dt_guide_event(SPCanvasItem *item, GdkEvent *event, gpointer data)
                                            event->motion.y);
                 Geom::Point motion_dt(desktop->w2d(motion_w));
 
+                sp_event_context_snap_delay_handler(desktop->event_context, (gpointer) item, data, (GdkEventMotion *)event, DelayedSnapEvent::GUIDE_HANDLER);
+
                 // This is for snapping while dragging existing guidelines. New guidelines,
                 // which are dragged off the ruler, are being snapped in sp_dt_ruler_event
                 SnapManager &m = desktop->namedview->snap_manager;
@@ -288,14 +293,17 @@ gint sp_dt_guide_event(SPCanvasItem *item, GdkEvent *event, gpointer data)
                     // be forced to be on the guide. If we don't snap however, then
                     // the origin should still be constrained to the guide. So let's do
                     // that explicitly first:
-
                     Geom::Line line(guide->point_on_line, guide->angle());
                     Geom::Coord t = line.nearestPoint(motion_dt);
                     motion_dt = line.pointAt(t);
-                    m.guideConstrainedSnap(motion_dt, *guide);
-                } else {
+                    if (!(event->motion.state & GDK_SHIFT_MASK)) {
+                        m.guideConstrainedSnap(motion_dt, *guide);
+                    }
+                } else if (!((drag_type == SP_DRAG_ROTATE) && (event->motion.state & GDK_CONTROL_MASK))) {
+                    // cannot use shift here to disable snapping, because we already use it for rotating the guide
                     m.guideFreeSnap(motion_dt, guide->normal_to_line, drag_type);
                 }
+                m.unSetup();
 
                 switch (drag_type) {
                     case SP_DRAG_TRANSLATE:
@@ -307,7 +315,7 @@ gint sp_dt_guide_event(SPCanvasItem *item, GdkEvent *event, gpointer data)
                     {
                         Geom::Point pt = motion_dt - guide->point_on_line;
                         double angle = std::atan2(pt[Geom::Y], pt[Geom::X]);
-                        if  (event->motion.state & GDK_CONTROL_MASK) {
+                        if (event->motion.state & GDK_CONTROL_MASK) {
                             Inkscape::Preferences *prefs = Inkscape::Preferences::get();
                             unsigned const snaps = abs(prefs->getInt("/options/rotationsnapsperpi/value", 12));
                             if (snaps) {
@@ -321,7 +329,7 @@ gint sp_dt_guide_event(SPCanvasItem *item, GdkEvent *event, gpointer data)
                     case SP_DRAG_MOVE_ORIGIN:
                     {
                         sp_guide_moveto(*guide, motion_dt, false);
-                       break;
+                        break;
                     }
                     case SP_DRAG_NONE:
                         g_assert_not_reached();
@@ -336,6 +344,8 @@ gint sp_dt_guide_event(SPCanvasItem *item, GdkEvent *event, gpointer data)
             break;
     case GDK_BUTTON_RELEASE:
             if (drag_type != SP_DRAG_NONE && event->button.button == 1) {
+                sp_event_context_discard_delayed_snap_event(desktop->event_context);
+
                 if (moved) {
                     Geom::Point const event_w(event->button.x,
                                               event->button.y);
@@ -344,17 +354,21 @@ gint sp_dt_guide_event(SPCanvasItem *item, GdkEvent *event, gpointer data)
                     SnapManager &m = desktop->namedview->snap_manager;
                     m.setup(desktop, true, NULL, NULL, guide);
                     if (drag_type == SP_DRAG_MOVE_ORIGIN) {
-                       // If we snap in guideConstrainedSnap() below, then motion_dt will
+                        // If we snap in guideConstrainedSnap() below, then motion_dt will
                         // be forced to be on the guide. If we don't snap however, then
                         // the origin should still be constrained to the guide. So let's
                         // do that explicitly first:
-                       Geom::Line line(guide->point_on_line, guide->angle());
+                        Geom::Line line(guide->point_on_line, guide->angle());
                         Geom::Coord t = line.nearestPoint(event_dt);
                         event_dt = line.pointAt(t);
-                       m.guideConstrainedSnap(event_dt, *guide);
-                    } else {
+                        if (!(event->button.state & GDK_SHIFT_MASK)) {
+                            m.guideConstrainedSnap(event_dt, *guide);
+                        }
+                    } else if (!((drag_type == SP_DRAG_ROTATE) && (event->motion.state & GDK_CONTROL_MASK))) {
+                        // cannot use shift here to disable snapping, because we already use it for rotating the guide
                         m.guideFreeSnap(event_dt, guide->normal_to_line, drag_type);
                     }
+                    m.unSetup();
 
                     if (sp_canvas_world_pt_inside_window(item->canvas, event_w)) {
                         switch (drag_type) {
@@ -380,21 +394,21 @@ gint sp_dt_guide_event(SPCanvasItem *item, GdkEvent *event, gpointer data)
                             }
                             case SP_DRAG_MOVE_ORIGIN:
                             {
-                               sp_guide_moveto(*guide, event_dt, true);
-                               break;
+                                sp_guide_moveto(*guide, event_dt, true);
+                                break;
                             }
                             case SP_DRAG_NONE:
                                 g_assert_not_reached();
                                 break;
                         }
-                        sp_document_done(sp_desktop_document(desktop), SP_VERB_NONE,
+                        DocumentUndo::done(sp_desktop_document(desktop), SP_VERB_NONE,
                                          _("Move guide"));
                     } else {
                         /* Undo movement of any attached shapes. */
                         sp_guide_moveto(*guide, guide->point_on_line, false);
                         sp_guide_set_normal(*guide, guide->normal_to_line, false);
                         sp_guide_remove(guide);
-                        sp_document_done(sp_desktop_document(desktop), SP_VERB_NONE,
+                        DocumentUndo::done(sp_desktop_document(desktop), SP_VERB_NONE,
                                      _("Delete guide"));
                     }
                     moved = false;
@@ -402,7 +416,6 @@ gint sp_dt_guide_event(SPCanvasItem *item, GdkEvent *event, gpointer data)
                     desktop->setPosition (from_2geom(event_dt));
                 }
                 drag_type = SP_DRAG_NONE;
-                sp_event_context_discard_delayed_snap_event(desktop->event_context);
                 sp_canvas_item_ungrab(item, event->button.time);
                 ret=TRUE;
             }
@@ -414,7 +427,7 @@ gint sp_dt_guide_event(SPCanvasItem *item, GdkEvent *event, gpointer data)
             Geom::Point const event_w(event->crossing.x, event->crossing.y);
             Geom::Point const event_dt(desktop->w2d(event_w));
 
-            if (event->crossing.state & GDK_SHIFT_MASK) {
+            if ((event->crossing.state & GDK_SHIFT_MASK) && (drag_type != SP_DRAG_MOVE_ORIGIN)) {
                 GdkCursor *guide_cursor;
                 guide_cursor = gdk_cursor_new (GDK_EXCHANGE);
                 gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, guide_cursor);
@@ -442,17 +455,22 @@ gint sp_dt_guide_event(SPCanvasItem *item, GdkEvent *event, gpointer data)
                 {
                     SPDocument *doc = SP_OBJECT_DOCUMENT(guide);
                     sp_guide_remove(guide);
-                    sp_document_done(doc, SP_VERB_NONE, _("Delete guide"));
+                    DocumentUndo::done(doc, SP_VERB_NONE, _("Delete guide"));
                     ret = TRUE;
+                    sp_event_context_discard_delayed_snap_event(desktop->event_context);
                     break;
                 }
                 case GDK_Shift_L:
                 case GDK_Shift_R:
-                    GdkCursor *guide_cursor;
-                    guide_cursor = gdk_cursor_new (GDK_EXCHANGE);
-                    gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, guide_cursor);
-                    gdk_cursor_unref(guide_cursor);
-                    ret = TRUE;
+                    if (drag_type != SP_DRAG_MOVE_ORIGIN) {
+                        GdkCursor *guide_cursor;
+                        guide_cursor = gdk_cursor_new (GDK_EXCHANGE);
+                        gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, guide_cursor);
+                        gdk_cursor_unref(guide_cursor);
+                        ret = TRUE;
+                        break;
+                    }
+
                 default:
                     // do nothing;
                     break;
@@ -604,5 +622,5 @@ void snoop_extended(GdkEvent* event, SPDesktop *desktop)
   fill-column:99
   End:
 */
-// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :