#ifdef HAVE_CONFIG_H

# include "config.h"

#endif

#include <cstring>

#include <string>

#include <gdk/gdkkeysyms.h>

#include "macros.h"

#include "rubberband.h"

#include "document.h"

#include "document-undo.h"

#include "selection.h"

#include "sp-cursor.h"

#include "pixmaps/cursor-select-m.xpm"

#include "pixmaps/cursor-select-d.xpm"

#include "pixmaps/handles.xpm"

#include <glibmm/i18n.h>

#include "select-context.h"

#include "selection-chemistry.h"

#ifdef WITH_DBUS

#include "extension/dbus/document-interface.h"

#endif

#include "desktop.h"

#include "desktop-handles.h"

#include "sp-root.h"

#include "preferences.h"

#include "tools-switch.h"

#include "message-stack.h"

#include "selection-describer.h"

#include "seltrans.h"

#include "box3d.h"

#include "display/sp-canvas.h"

#include "display/sp-canvas-item.h"

#include "display/drawing-item.h"

using Inkscape::DocumentUndo;

static void sp_select_context_dispose(GObject *object);

static void sp_select_context_setup(SPEventContext *ec);

static void sp_select_context_set(SPEventContext *ec, Inkscape::Preferences::Entry *val);

static gint sp_select_context_root_handler(SPEventContext *event_context, GdkEvent *event);

static gint sp_select_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event);

static GdkCursor *CursorSelectMouseover = NULL;

static GdkCursor *CursorSelectDragging = NULL;

GdkPixbuf *handles[13];

static gint rb_escaped = 0; // if non-zero, rubberband was canceled by esc, so the next button release should not deselect

static gint drag_escaped = 0; // if non-zero, drag was canceled by esc

static gint xp = 0, yp = 0; // where drag started

static gint tolerance = 0;

static bool within_tolerance = false;

G_DEFINE_TYPE(SPSelectContext, sp_select_context, SP_TYPE_EVENT_CONTEXT);

static void

sp_select_context_class_init(SPSelectContextClass *klass)

{

GObjectClass *object_class = G_OBJECT_CLASS(klass);

SPEventContextClass *event_context_class = SP_EVENT_CONTEXT_CLASS(klass);

object_class->dispose = sp_select_context_dispose;

event_context_class->setup = sp_select_context_setup;

event_context_class->set = sp_select_context_set;

event_context_class->root_handler = sp_select_context_root_handler;

event_context_class->item_handler = sp_select_context_item_handler;

}

static void

sp_select_context_init(SPSelectContext *sc)

{

sc->dragging = FALSE;

sc->moved = FALSE;

sc->button_press_shift = false;

sc->button_press_ctrl = false;

sc->button_press_alt = false;

sc->cycling_items = NULL;

sc->cycling_items_cmp = NULL;

sc->cycling_items_selected_before = NULL;

sc->cycling_cur_item = NULL;

sc->cycling_wrap = true;

sc->_seltrans = NULL;

sc->_describer = NULL;

// cursors in select context

CursorSelectMouseover = sp_cursor_new_from_xpm(cursor_select_m_xpm , 1, 1);

CursorSelectDragging = sp_cursor_new_from_xpm(cursor_select_d_xpm , 1, 1);

// selection handles

handles[0] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_scale_nw_xpm);

handles[1] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_scale_ne_xpm);

handles[2] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_scale_h_xpm);

handles[3] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_scale_v_xpm);

handles[4] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_nw_xpm);

handles[5] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_n_xpm);

handles[6] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_ne_xpm);

handles[7] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_e_xpm);

handles[8] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_se_xpm);

handles[9] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_s_xpm);

handles[10] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_sw_xpm);

handles[11] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_w_xpm);

handles[12] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_center_xpm);

}

static void

sp_select_context_dispose(GObject *object)

{

SPSelectContext *sc = SP_SELECT_CONTEXT(object);

SPEventContext * ec = SP_EVENT_CONTEXT (object);

ec->enableGrDrag(false);

if (sc->grabbed) {

sp_canvas_item_ungrab(sc->grabbed, GDK_CURRENT_TIME);

sc->grabbed = NULL;

}

delete sc->_seltrans;

sc->_seltrans = NULL;

delete sc->_describer;

sc->_describer = NULL;

if (CursorSelectDragging) {

#if GTK_CHECK_VERSION(3,0,0)

g_object_unref(CursorSelectDragging);

#else

gdk_cursor_unref (CursorSelectDragging);

#endif

CursorSelectDragging = NULL;

}

if (CursorSelectMouseover) {

#if GTK_CHECK_VERSION(3,0,0)

g_object_unref(CursorSelectMouseover);

#else

gdk_cursor_unref (CursorSelectMouseover);

#endif

CursorSelectMouseover = NULL;

}

G_OBJECT_CLASS(sp_select_context_parent_class)->dispose(object);

}

static void

sp_select_context_setup(SPEventContext *ec)

{

SPSelectContext *select_context = SP_SELECT_CONTEXT(ec);

if ((SP_EVENT_CONTEXT_CLASS(sp_select_context_parent_class))->setup) {

(SP_EVENT_CONTEXT_CLASS(sp_select_context_parent_class))->setup(ec);

}

SPDesktop *desktop = ec->desktop;

select_context->_describer = new Inkscape::SelectionDescriber(

desktop->selection,

desktop->messageStack(),

_("Click selection to toggle scale/rotation handles"),

_("No objects selected. Click, Shift+click, Alt+scroll mouse on top of objects, or drag around objects to select.")

);

select_context->_seltrans = new Inkscape::SelTrans(desktop);

sp_event_context_read(ec, "show");

sp_event_context_read(ec, "transform");

Inkscape::Preferences *prefs = Inkscape::Preferences::get();

if (prefs->getBool("/tools/select/gradientdrag")) {

ec->enableGrDrag();

}

}

static void

sp_select_context_set(SPEventContext *ec, Inkscape::Preferences::Entry *val)

{

SPSelectContext *sc = SP_SELECT_CONTEXT(ec);

Glib::ustring path = val->getEntryName();

if (path == "show") {

if (val->getString() == "outline") {

sc->_seltrans->setShow(Inkscape::SelTrans::SHOW_OUTLINE);

} else {

sc->_seltrans->setShow(Inkscape::SelTrans::SHOW_CONTENT);

}

}

}

static bool

sp_select_context_abort(SPEventContext *event_context)

{

SPDesktop *desktop = event_context->desktop;

SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);

Inkscape::SelTrans *seltrans = sc->_seltrans;

if (sc->dragging) {

if (sc->moved) { // cancel dragging an object

seltrans->ungrab();

sc->moved = FALSE;

sc->dragging = FALSE;

sp_event_context_discard_delayed_snap_event(event_context);

drag_escaped = 1;

if (sc->item) {

// only undo if the item is still valid

if (sc->item->document) {

DocumentUndo::undo(sp_desktop_document(desktop));

}

sp_object_unref( sc->item, NULL);

} else if (sc->button_press_ctrl) {

// NOTE: This is a workaround to a bug.

// When the ctrl key is held, sc->item is not defined

// so in this case (only), we skip the object doc check

DocumentUndo::undo(sp_desktop_document(desktop));

}

sc->item = NULL;

SP_EVENT_CONTEXT(sc)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Move canceled."));

return true;

}

} else {

if (Inkscape::Rubberband::get(desktop)->is_started()) {

Inkscape::Rubberband::get(desktop)->stop();

rb_escaped = 1;

SP_EVENT_CONTEXT(sc)->defaultMessageContext()->clear();

SP_EVENT_CONTEXT(sc)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Selection canceled."));

return true;

}

}

return false;

}

static bool

key_is_a_modifier (guint key) {

return (key == GDK_KEY_Alt_L ||

key == GDK_KEY_Alt_R ||

key == GDK_KEY_Control_L ||

key == GDK_KEY_Control_R ||

key == GDK_KEY_Shift_L ||

key == GDK_KEY_Shift_R ||

key == GDK_KEY_Meta_L || // Meta is when you press Shift+Alt (at least on my machine)

key == GDK_KEY_Meta_R);

}

static void

sp_select_context_up_one_layer(SPDesktop *desktop)

{

/* Click in empty place, go up one level -- but don't leave a layer to root.

SPObject *const current_layer = desktop->currentLayer();

if (current_layer) {

SPObject *const parent = current_layer->parent;

if ( parent

&& ( parent->parent

|| !( SP_IS_GROUP(current_layer)

&& ( SPGroup::LAYER

== SP_GROUP(current_layer)->layerMode() ) ) ) )

{

desktop->setCurrentLayer(parent);

if (SP_IS_GROUP(current_layer) && SPGroup::LAYER != SP_GROUP(current_layer)->layerMode())

sp_desktop_selection(desktop)->set(current_layer);

}

}

}

static gint

sp_select_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)

{

gint ret = FALSE;

SPDesktop *desktop = event_context->desktop;

SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);

Inkscape::SelTrans *seltrans = sc->_seltrans;

Inkscape::Preferences *prefs = Inkscape::Preferences::get();

tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);

// make sure we still have valid objects to move around

if (sc->item && sc->item->document == NULL) {

sp_select_context_abort(event_context);

}

switch (event->type) {

case GDK_BUTTON_PRESS:

if (event->button.button == 1 && !event_context->space_panning) {

/* Left mousebutton */

// save drag origin

xp = (gint) event->button.x;

yp = (gint) event->button.y;

within_tolerance = true;

// remember what modifiers were on before button press

sc->button_press_shift = (event->button.state & GDK_SHIFT_MASK) ? true : false;

sc->button_press_ctrl = (event->button.state & GDK_CONTROL_MASK) ? true : false;

sc->button_press_alt = (event->button.state & GDK_MOD1_MASK) ? true : false;

if (event->button.state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK | GDK_MOD1_MASK)) {

// if shift or ctrl was pressed, do not move objects;

// pass the event to root handler which will perform rubberband, shift-click, ctrl-click, ctrl-drag

} else {

GdkWindow* window = gtk_widget_get_window (GTK_WIDGET (sp_desktop_canvas(desktop)));

sc->dragging = TRUE;

sc->moved = FALSE;

gdk_window_set_cursor(window, CursorSelectDragging);

desktop->canvas->forceFullRedrawAfterInterruptions(5);

// remember the clicked item in sc->item:

if (sc->item) {

sp_object_unref(sc->item, NULL);

sc->item = NULL;

}

sc->item = sp_event_context_find_item (desktop,

Geom::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, FALSE);

sp_object_ref(sc->item, NULL);

rb_escaped = drag_escaped = 0;

if (sc->grabbed) {

sp_canvas_item_ungrab(sc->grabbed, event->button.time);

sc->grabbed = NULL;

}

sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->drawing),

GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK |

GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK,

NULL, event->button.time);

sc->grabbed = SP_CANVAS_ITEM(desktop->drawing);

desktop->canvas->forceFullRedrawAfterInterruptions(5);

ret = TRUE;

}

} else if (event->button.button == 3) {

// right click; do not eat it so that right-click menu can appear, but cancel dragging & rubberband

sp_select_context_abort(event_context);

}

break;

case GDK_ENTER_NOTIFY:

{

if (!desktop->isWaitingCursor() && !sc->dragging) {

GdkWindow* window = gtk_widget_get_window (GTK_WIDGET (sp_desktop_canvas(desktop)));

gdk_window_set_cursor(window, CursorSelectMouseover);

}

break;

}

case GDK_LEAVE_NOTIFY:

if (!desktop->isWaitingCursor() && !sc->dragging) {

GdkWindow* window = gtk_widget_get_window (GTK_WIDGET (sp_desktop_canvas(desktop)));

gdk_window_set_cursor(window, event_context->cursor);

}

break;

case GDK_KEY_PRESS:

if (get_group0_keyval (&event->key) == GDK_KEY_space) {

if (sc->dragging && sc->grabbed) {

/* stamping mode: show content mode moving */

seltrans->stamp();

ret = TRUE;

}

} else if (get_group0_keyval (&event->key) == GDK_KEY_Tab) {

if (sc->dragging && sc->grabbed) {

seltrans->getNextClosestPoint(false);

ret = TRUE;

}

} else if (get_group0_keyval (&event->key) == GDK_KEY_ISO_Left_Tab) {

if (sc->dragging && sc->grabbed) {

seltrans->getNextClosestPoint(true);

ret = TRUE;

}

}

break;

default:

break;

}

if (!ret) {

if ((SP_EVENT_CONTEXT_CLASS(sp_select_context_parent_class))->item_handler)

ret = (SP_EVENT_CONTEXT_CLASS(sp_select_context_parent_class))->item_handler(event_context, item, event);

}

return ret;

}

static void

sp_select_context_cycle_through_items(SPSelectContext *sc, Inkscape::Selection *selection, GdkEventScroll *scroll_event, bool shift_pressed) {

if (!sc->cycling_cur_item)

return;

Inkscape::DrawingItem *arenaitem;

SPDesktop *desktop = SP_EVENT_CONTEXT(sc)->desktop;

SPItem *item = SP_ITEM(sc->cycling_cur_item->data);

// Deactivate current item

if (!g_list_find(sc->cycling_items_selected_before, item) && selection->includes(item))

selection->remove(item);

arenaitem = item->get_arenaitem(desktop->dkey);

arenaitem->setOpacity(0.3);

// Find next item and activate it

GList *next;

if (scroll_event->direction == GDK_SCROLL_UP) {

next = sc->cycling_cur_item->next;

if (next == NULL && sc->cycling_wrap)

next = sc->cycling_items;

} else {

next = sc->cycling_cur_item->prev;

if (next == NULL && sc->cycling_wrap)

next = g_list_last(sc->cycling_items);

}

if (next) {

sc->cycling_cur_item = next;

item = SP_ITEM(sc->cycling_cur_item->data);

}

arenaitem = item->get_arenaitem(desktop->dkey);

arenaitem->setOpacity(1.0);

if (shift_pressed)

selection->add(item);

else

selection->set(item);

}

static gint

sp_select_context_root_handler(SPEventContext *event_context, GdkEvent *event)

{

SPItem *item = NULL;

SPItem *item_at_point = NULL, *group_at_point = NULL, *item_in_group = NULL;

gint ret = FALSE;

SPDesktop *desktop = event_context->desktop;

SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);

Inkscape::SelTrans *seltrans = sc->_seltrans;

Inkscape::Selection *selection = sp_desktop_selection(desktop);

Inkscape::Preferences *prefs = Inkscape::Preferences::get();

// make sure we still have valid objects to move around

if (sc->item && sc->item->document == NULL) {

sp_select_context_abort(event_context);

}

switch (event->type) {

case GDK_2BUTTON_PRESS:

if (event->button.button == 1) {

if (!selection->isEmpty()) {

SPItem *clicked_item = static_cast<SPItem *>(selection->itemList()->data);

if (SP_IS_GROUP(clicked_item) && !SP_IS_BOX3D(clicked_item)) { // enter group if it's not a 3D box

desktop->setCurrentLayer(reinterpret_cast<SPObject *>(clicked_item));

sp_desktop_selection(desktop)->clear();

sc->dragging = false;

sp_event_context_discard_delayed_snap_event(event_context);

desktop->canvas->endForcedFullRedraws();

} else { // switch tool

Geom::Point const button_pt(event->button.x, event->button.y);

Geom::Point const p(desktop->w2d(button_pt));

tools_switch_by_item (desktop, clicked_item, p);

}

} else {

sp_select_context_up_one_layer(desktop);

}

ret = TRUE;

}

break;

case GDK_BUTTON_PRESS:

if (event->button.button == 1 && !event_context->space_panning) {

// save drag origin

xp = (gint) event->button.x;

yp = (gint) event->button.y;

within_tolerance = true;

Geom::Point const button_pt(event->button.x, event->button.y);

Geom::Point const p(desktop->w2d(button_pt));

if (event->button.state & GDK_MOD1_MASK)

Inkscape::Rubberband::get(desktop)->setMode(RUBBERBAND_MODE_TOUCHPATH);

Inkscape::Rubberband::get(desktop)->start(desktop, p);

if (sc->grabbed) {

sp_canvas_item_ungrab(sc->grabbed, event->button.time);

sc->grabbed = NULL;

}

sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),

GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK,

NULL, event->button.time);

sc->grabbed = SP_CANVAS_ITEM(desktop->acetate);

// remember what modifiers were on before button press

sc->button_press_shift = (event->button.state & GDK_SHIFT_MASK) ? true : false;

sc->button_press_ctrl = (event->button.state & GDK_CONTROL_MASK) ? true : false;

sc->button_press_alt = (event->button.state & GDK_MOD1_MASK) ? true : false;

sc->moved = FALSE;

rb_escaped = drag_escaped = 0;

ret = TRUE;

} else if (event->button.button == 3) {

// right click; do not eat it so that right-click menu can appear, but cancel dragging & rubberband

sp_select_context_abort(event_context);

}

break;

case GDK_MOTION_NOTIFY:

{

tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);

if ((event->motion.state & GDK_BUTTON1_MASK) && !event_context->space_panning) {

Geom::Point const motion_pt(event->motion.x, event->motion.y);

Geom::Point const p(desktop->w2d(motion_pt));

if ( within_tolerance

&& ( abs( (gint) event->motion.x - xp ) < tolerance )

&& ( abs( (gint) event->motion.y - yp ) < tolerance ) ) {

break; // do not drag if we're within tolerance from origin

}

// Once the user has moved farther than tolerance from the original location

// (indicating they intend to move the object, not click), then always process the

// motion notify coordinates as given (no snapping back to origin)

within_tolerance = false;

if (sc->button_press_ctrl || (sc->button_press_alt && !sc->button_press_shift && !selection->isEmpty())) {

// if it's not click and ctrl or alt was pressed (the latter with some selection

// but not with shift) we want to drag rather than rubberband

sc->dragging = TRUE;

GdkWindow* window = gtk_widget_get_window (GTK_WIDGET (sp_desktop_canvas(desktop)));

gdk_window_set_cursor(window, CursorSelectDragging);

desktop->canvas->forceFullRedrawAfterInterruptions(5);

}

if (sc->dragging) {

/* User has dragged fast, so we get events on root (lauris)*/

// not only that; we will end up here when ctrl-dragging as well

// and also when we started within tolerance, but trespassed tolerance outside of item

Inkscape::Rubberband::get(desktop)->stop();

SP_EVENT_CONTEXT(sc)->defaultMessageContext()->clear();

item_at_point = desktop->getItemAtPoint(Geom::Point(event->button.x, event->button.y), FALSE);

if (!item_at_point) // if no item at this point, try at the click point (bug 1012200)

item_at_point = desktop->getItemAtPoint(Geom::Point(xp, yp), FALSE);

if (item_at_point || sc->moved || sc->button_press_alt) {

// drag only if starting from an item, or if something is already grabbed, or if alt-dragging

if (!sc->moved) {

item_in_group = desktop->getItemAtPoint(Geom::Point(event->button.x, event->button.y), TRUE);

group_at_point = desktop->getGroupAtPoint(Geom::Point(event->button.x, event->button.y));

if (SP_IS_LAYER(selection->single()))

group_at_point = SP_GROUP(selection->single());

// group-at-point is meant to be topmost item if it's a group,

// not topmost group of all items at point

if (group_at_point != item_in_group &&

!(group_at_point && item_at_point &&

group_at_point->isAncestorOf(item_at_point)))

group_at_point = NULL;

// if neither a group nor an item (possibly in a group) at point are selected, set selection to the item at point

if ((!item_in_group || !selection->includes(item_in_group)) &&

(!group_at_point || !selection->includes(group_at_point))

&& !sc->button_press_alt) {

// select what is under cursor

if (!seltrans->isEmpty()) {

seltrans->resetState();

}

// when simply ctrl-dragging, we don't want to go into groups

if (item_at_point && !selection->includes(item_at_point))

selection->set(item_at_point);

} // otherwise, do not change selection so that dragging selected-within-group items, as well as alt-dragging, is possible

seltrans->grab(p, -1, -1, FALSE, TRUE);

sc->moved = TRUE;

}

if (!seltrans->isEmpty())

seltrans->moveTo(p, event->button.state);

desktop->scroll_to_point(p);

gobble_motion_events(GDK_BUTTON1_MASK);

ret = TRUE;

} else {

sc->dragging = FALSE;

sp_event_context_discard_delayed_snap_event(event_context);

desktop->canvas->endForcedFullRedraws();

}

} else {

if (Inkscape::Rubberband::get(desktop)->is_started()) {

Inkscape::Rubberband::get(desktop)->move(p);

if (Inkscape::Rubberband::get(desktop)->getMode() == RUBBERBAND_MODE_TOUCHPATH) {

event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Draw over</b> objects to select them; release <b>Alt</b> to switch to rubberband selection"));

} else {

event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Drag around</b> objects to select them; press <b>Alt</b> to switch to touch selection"));

}

gobble_motion_events(GDK_BUTTON1_MASK);

}

}

}

break;

}

case GDK_BUTTON_RELEASE:

xp = yp = 0;

if ((event->button.button == 1) && (sc->grabbed) && !event_context->space_panning) {

if (sc->dragging) {

GdkWindow* window;

if (sc->moved) {

// item has been moved

seltrans->ungrab();

sc->moved = FALSE;

#ifdef WITH_DBUS

dbus_send_ping(desktop, sc->item);

#endif

} else if (sc->item && !drag_escaped) {

// item has not been moved -> simply a click, do selecting

if (!selection->isEmpty()) {

if (event->button.state & GDK_SHIFT_MASK) {

// with shift, toggle selection

seltrans->resetState();

selection->toggle(sc->item);

} else {

SPObject* single = selection->single();

// without shift, increase state (i.e. toggle scale/rotation handles)

if (selection->includes(sc->item)) {

seltrans->increaseState();

} else if (SP_IS_LAYER(single) && single->isAncestorOf(sc->item)) {

seltrans->increaseState();

} else {

seltrans->resetState();

selection->set(sc->item);

}

}

} else { // simple or shift click, no previous selection

seltrans->resetState();

selection->set(sc->item);

}

}

sc->dragging = FALSE;

window = gtk_widget_get_window (GTK_WIDGET (sp_desktop_canvas(desktop)));

gdk_window_set_cursor(window, CursorSelectMouseover);

sp_event_context_discard_delayed_snap_event(event_context);

desktop->canvas->endForcedFullRedraws();

if (sc->item) {

sp_object_unref( sc->item, NULL);

}

sc->item = NULL;

} else {

Inkscape::Rubberband *r = Inkscape::Rubberband::get(desktop);

if (r->is_started() && !within_tolerance) {

// this was a rubberband drag

GSList *items = NULL;

if (r->getMode() == RUBBERBAND_MODE_RECT) {

Geom::OptRect const b = r->getRectangle();

items = sp_desktop_document(desktop)->getItemsInBox(desktop->dkey, *b);

} else if (r->getMode() == RUBBERBAND_MODE_TOUCHPATH) {

items = sp_desktop_document(desktop)->getItemsAtPoints(desktop->dkey, r->getPoints());

}

seltrans->resetState();

r->stop();

SP_EVENT_CONTEXT(sc)->defaultMessageContext()->clear();

if (event->button.state & GDK_SHIFT_MASK) {

// with shift, add to selection

selection->addList (items);

} else {

// without shift, simply select anew

selection->setList (items);

}

g_slist_free (items);

} else { // it was just a click, or a too small rubberband

r->stop();

if (sc->button_press_shift && !rb_escaped && !drag_escaped) {

// this was a shift+click or alt+shift+click, select what was clicked upon

sc->button_press_shift = false;

if (sc->button_press_ctrl) {

// go into groups, honoring Alt

item = sp_event_context_find_item (desktop,

Geom::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, TRUE);

sc->button_press_ctrl = FALSE;

} else {

// don't go into groups, honoring Alt

item = sp_event_context_find_item (desktop,

Geom::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, FALSE);

}

if (item) {

selection->toggle(item);

item = NULL;

}

} else if ((sc->button_press_ctrl || sc->button_press_alt) && !rb_escaped && !drag_escaped) { // ctrl+click, alt+click

item = sp_event_context_find_item (desktop,

Geom::Point(event->button.x, event->button.y), sc->button_press_alt, sc->button_press_ctrl);

sc->button_press_ctrl = FALSE;

sc->button_press_alt = FALSE;

if (item) {

if (selection->includes(item)) {

seltrans->increaseState();

} else {

seltrans->resetState();

selection->set(item);

}

item = NULL;

}

} else { // click without shift, simply deselect, unless with Alt or something was cancelled

if (!selection->isEmpty()) {

if (!(rb_escaped) && !(drag_escaped) && !(event->button.state & GDK_MOD1_MASK))

selection->clear();

rb_escaped = 0;

ret = TRUE;

}

}

}

ret = TRUE;

}

if (sc->grabbed) {

sp_canvas_item_ungrab(sc->grabbed, event->button.time);

sc->grabbed = NULL;

}

desktop->updateNow();

}

if (event->button.button == 1) {

Inkscape::Rubberband::get(desktop)->stop(); // might have been started in another tool!

}

sc->button_press_shift = false;

sc->button_press_ctrl = false;

sc->button_press_alt = false;

break;

case GDK_SCROLL:

{

SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);

GdkEventScroll *scroll_event = (GdkEventScroll*) event;

if (scroll_event->state & GDK_MOD1_MASK) { // alt modified pressed

bool shift_pressed = scroll_event->state & GDK_SHIFT_MASK;

/* Rebuild list of items underneath the mouse pointer */

Geom::Point p = desktop->d2w(desktop->point());

SPItem *item = desktop->getItemAtPoint(p, true, NULL);

// Save pointer to current cycle-item so that we can find it again later, in the freshly built list

SPItem *tmp_cur_item = sc->cycling_cur_item ? SP_ITEM(sc->cycling_cur_item->data) : NULL;

g_list_free(sc->cycling_items);

sc->cycling_items = NULL;

sc->cycling_cur_item = NULL;

while(item != NULL) {

sc->cycling_items = g_list_append(sc->cycling_items, item);

item = desktop->getItemAtPoint(p, true, item);

}

/* Compare current item list with item list during previous scroll ... */

GList *l1, *l2;

bool item_lists_differ = false;

// Note that we can do an 'or' comparison in the loop because it is safe to call g_list_next with a NULL pointer.

for (l1 = sc->cycling_items, l2 = sc->cycling_items_cmp; l1 != NULL || l2 != NULL; l1 = g_list_next(l1), l2 = g_list_next(l2)) {

if ((l1 !=NULL && l2 == NULL) || (l1 == NULL && l2 != NULL) || (l1->data != l2->data)) {

item_lists_differ = true;

break;

}

}

/* If list of items under mouse pointer hasn't changed ... */

if (!item_lists_differ) {

// ... find current item in the freshly built list and continue cycling ...

// TODO: This wouldn't be necessary if cycling_cur_item pointed to an element of cycling_items_cmp instead

sc->cycling_cur_item = g_list_find(sc->cycling_items, tmp_cur_item);

g_assert(sc->cycling_cur_item != NULL || sc->cycling_items == NULL);

} else {

// ... otherwise reset opacities for outdated items ...

Inkscape::DrawingItem *arenaitem;

for(GList *l = sc->cycling_items_cmp; l != NULL; l = l->next) {

arenaitem = SP_ITEM(l->data)->get_arenaitem(desktop->dkey);

arenaitem->setOpacity(1.0);

//if (!shift_pressed && !g_list_find(sc->cycling_items_selected_before, SP_ITEM(l->data)) && selection->includes(SP_ITEM(l->data)))

if (!g_list_find(sc->cycling_items_selected_before, SP_ITEM(l->data)) && selection->includes(SP_ITEM(l->data)))

selection->remove(SP_ITEM(l->data));

}

// ... clear the lists ...

g_list_free(sc->cycling_items_cmp);

g_list_free(sc->cycling_items_selected_before);

sc->cycling_items_cmp = NULL;

sc->cycling_items_selected_before = NULL;

sc->cycling_cur_item = NULL;

// ... and rebuild them with the new items.

sc->cycling_items_cmp = g_list_copy(sc->cycling_items);

SPItem *item;

for(GList *l = sc->cycling_items; l != NULL; l = l->next) {

item = SP_ITEM(l->data);

arenaitem = item->get_arenaitem(desktop->dkey);

arenaitem->setOpacity(0.3);

if (selection->includes(item)) {

// already selected items are stored separately, too

sc->cycling_items_selected_before = g_list_append(sc->cycling_items_selected_before, item);

}

}

// set the current item to the bottommost one so that the cycling step below re-starts at the top

sc->cycling_cur_item = g_list_last(sc->cycling_items);

}

sc->cycling_wrap = prefs->getBool("/options/selection/cycleWrap", true);

// Cycle through the items underneath the mouse pointer, one-by-one

sp_select_context_cycle_through_items(sc, selection, scroll_event, shift_pressed);

ret = TRUE;

}

break;

}

case GDK_KEY_PRESS: // keybindings for select context

{

{

guint keyval = get_group0_keyval(&event->key);

bool alt = ( MOD__ALT

|| (keyval == GDK_KEY_Alt_L)

|| (keyval == GDK_KEY_Alt_R)

|| (keyval == GDK_KEY_Meta_L)

|| (keyval == GDK_KEY_Meta_R));

if (!key_is_a_modifier (keyval)) {

event_context->defaultMessageContext()->clear();

} else if (sc->grabbed || seltrans->isGrabbed()) {

if (Inkscape::Rubberband::get(desktop)->is_started()) {

// if Alt then change cursor to moving cursor:

if (alt) {

Inkscape::Rubberband::get(desktop)->setMode(RUBBERBAND_MODE_TOUCHPATH);

}

} else {

// do not change the statusbar text when mousekey is down to move or transform the object,

// because the statusbar text is already updated somewhere else.

break;

}

} else {

sp_event_show_modifier_tip (event_context->defaultMessageContext(), event,

_("<b>Ctrl</b>: click to select in groups; drag to move hor/vert"),

_("<b>Shift</b>: click to toggle select; drag for rubberband selection"),

_("<b>Alt</b>: click to select under; scroll mouse-wheel to cycle-select; drag to move selected or select by touch"));

// if Alt and nonempty selection, show moving cursor ("move selected"):

if (alt && !selection->isEmpty() && !desktop->isWaitingCursor()) {

GdkWindow* window = gtk_widget_get_window (GTK_WIDGET (sp_desktop_canvas(desktop)));

gdk_window_set_cursor(window, CursorSelectDragging);

}

//*/

break;

}

}

gdouble const nudge = prefs->getDoubleLimited("/options/nudgedistance/value", 2, 0, 1000, "px"); // in px

gdouble const offset = prefs->getDoubleLimited("/options/defaultscale/value", 2, 0, 1000, "px");

int const snaps = prefs->getInt("/options/rotationsnapsperpi/value", 12);

switch (get_group0_keyval (&event->key)) {

case GDK_KEY_Left: // move selection left

case GDK_KEY_KP_Left:

if (!MOD__CTRL) { // not ctrl

gint mul = 1 + gobble_key_events(

get_group0_keyval(&event->key), 0); // with any mask

if (MOD__ALT) { // alt

if (MOD__SHIFT) sp_selection_move_screen(desktop, mul*-10, 0); // shift

else sp_selection_move_screen(desktop, mul*-1, 0); // no shift

}

else { // no alt

if (MOD__SHIFT) sp_selection_move(desktop, mul*-10*nudge, 0); // shift

else sp_selection_move(desktop, mul*-nudge, 0); // no shift

}

ret = TRUE;

}

break;

case GDK_KEY_Up: // move selection up

case GDK_KEY_KP_Up:

if (!MOD__CTRL) { // not ctrl

gint mul = 1 + gobble_key_events(

get_group0_keyval(&event->key), 0); // with any mask

if (MOD__ALT) { // alt

if (MOD__SHIFT) sp_selection_move_screen(desktop, 0, mul*10); // shift

else sp_selection_move_screen(desktop, 0, mul*1); // no shift

}

else { // no alt

if (MOD__SHIFT) sp_selection_move(desktop, 0, mul*10*nudge); // shift

else sp_selection_move(desktop, 0, mul*nudge); // no shift

}

ret = TRUE;

}

break;

case GDK_KEY_Right: // move selection right

case GDK_KEY_KP_Right:

if (!MOD__CTRL) { // not ctrl

gint mul = 1 + gobble_key_events(

get_group0_keyval(&event->key), 0); // with any mask

if (MOD__ALT) { // alt

if (MOD__SHIFT) sp_selection_move_screen(desktop, mul*10, 0); // shift

else sp_selection_move_screen(desktop, mul*1, 0); // no shift

}

else { // no alt

if (MOD__SHIFT) sp_selection_move(desktop, mul*10*nudge, 0); // shift

else sp_selection_move(desktop, mul*nudge, 0); // no shift

}

ret = TRUE;

}

break;

case GDK_KEY_Down: // move selection down

case GDK_KEY_KP_Down:

if (!MOD__CTRL) { // not ctrl

gint mul = 1 + gobble_key_events(

get_group0_keyval(&event->key), 0); // with any mask

if (MOD__ALT) { // alt

if (MOD__SHIFT) sp_selection_move_screen(desktop, 0, mul*-10); // shift

else sp_selection_move_screen(desktop, 0, mul*-1); // no shift

}

else { // no alt

if (MOD__SHIFT) sp_selection_move(desktop, 0, mul*-10*nudge); // shift

else sp_selection_move(desktop, 0, mul*-nudge); // no shift

}

ret = TRUE;

}

break;

case GDK_KEY_Escape:

if (!sp_select_context_abort(event_context))

selection->clear();

ret = TRUE;

break;

case GDK_KEY_a:

case GDK_KEY_A:

if (MOD__CTRL_ONLY) {

sp_edit_select_all(desktop);

ret = TRUE;

}

break;

case GDK_KEY_space:

/* stamping mode: show outline mode moving */

/* FIXME: Is next condition ok? (lauris) */

if (sc->dragging && sc->grabbed) {

seltrans->stamp();

ret = TRUE;

}

break;

case GDK_KEY_x:

case GDK_KEY_X:

if (MOD__ALT_ONLY) {

desktop->setToolboxFocusTo ("altx");

ret = TRUE;

}

break;

case GDK_KEY_bracketleft:

if (MOD__ALT) {

gint mul = 1 + gobble_key_events(

get_group0_keyval(&event->key), 0); // with any mask

sp_selection_rotate_screen(selection, mul*1);

} else if (MOD__CTRL) {

sp_selection_rotate(selection, 90);

} else if (snaps) {

sp_selection_rotate(selection, 180/snaps);

}

ret = TRUE;

break;

case GDK_KEY_bracketright:

if (MOD__ALT) {

gint mul = 1 + gobble_key_events(

get_group0_keyval(&event->key), 0); // with any mask

sp_selection_rotate_screen(selection, -1*mul);

} else if (MOD__CTRL) {

sp_selection_rotate(selection, -90);

} else if (snaps) {

sp_selection_rotate(selection, -180/snaps);

}

ret = TRUE;

break;

case GDK_KEY_less:

case GDK_KEY_comma:

if (MOD__ALT) {

gint mul = 1 + gobble_key_events(

get_group0_keyval(&event->key), 0); // with any mask

sp_selection_scale_screen(selection, -2*mul);

} else if (MOD__CTRL) {

sp_selection_scale_times(selection, 0.5);

} else {

gint mul = 1 + gobble_key_events(

get_group0_keyval(&event->key), 0); // with any mask

sp_selection_scale(selection, -offset*mul);

}

ret = TRUE;

break;

case GDK_KEY_greater:

case GDK_KEY_period:

if (MOD__ALT) {

gint mul = 1 + gobble_key_events(

get_group0_keyval(&event->key), 0); // with any mask

sp_selection_scale_screen(selection, 2*mul);

} else if (MOD__CTRL) {

sp_selection_scale_times(selection, 2);

} else {

gint mul = 1 + gobble_key_events(

get_group0_keyval(&event->key), 0); // with any mask

sp_selection_scale(selection, offset*mul);

}

ret = TRUE;

break;

case GDK_KEY_Return:

if (MOD__CTRL_ONLY) {

if (selection->singleItem()) {

SPItem *clicked_item = selection->singleItem();

if ( SP_IS_GROUP(clicked_item) ||

SP_IS_BOX3D(clicked_item)) { // enter group or a 3D box

desktop->setCurrentLayer(reinterpret_cast<SPObject *>(clicked_item));

sp_desktop_selection(desktop)->clear();

} else {

SP_EVENT_CONTEXT(sc)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Selected object is not a group. Cannot enter."));

}

}

ret = TRUE;

}

break;

case GDK_KEY_BackSpace:

if (MOD__CTRL_ONLY) {

sp_select_context_up_one_layer(desktop);

ret = TRUE;

}

break;

case GDK_KEY_s:

case GDK_KEY_S:

if (MOD__SHIFT_ONLY) {

if (!selection->isEmpty()) {

seltrans->increaseState();

}

ret = TRUE;

}

break;

case GDK_KEY_g:

case GDK_KEY_G:

if (MOD__SHIFT_ONLY) {

sp_selection_to_guides(desktop);

ret = true;

}

break;

default:

break;

}

break;

}

case GDK_KEY_RELEASE:

{

guint keyval = get_group0_keyval(&event->key);

if (key_is_a_modifier (keyval))

event_context->defaultMessageContext()->clear();

bool alt = ( MOD__ALT

|| (keyval == GDK_KEY_Alt_L)

|| (keyval == GDK_KEY_Alt_R)

|| (keyval == GDK_KEY_Meta_L)

|| (keyval == GDK_KEY_Meta_R));

if (Inkscape::Rubberband::get(desktop)->is_started()) {

// if Alt then change cursor to moving cursor:

if (alt) {

Inkscape::Rubberband::get(desktop)->setMode(RUBBERBAND_MODE_RECT);

}

} else {

if (alt) { // TODO: Should we have a variable like is_cycling or is it harmless to run this piece of code each time?

// quit cycle-selection and reset opacities

SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);

Inkscape::DrawingItem *arenaitem;

for (GList *l = sc->cycling_items; l != NULL; l = g_list_next(l)) {

arenaitem = SP_ITEM(l->data)->get_arenaitem(desktop->dkey);

arenaitem->setOpacity(1.0);

}

g_list_free(sc->cycling_items);

g_list_free(sc->cycling_items_selected_before);

g_list_free(sc->cycling_items_cmp);

sc->cycling_items = NULL;

sc->cycling_items_selected_before = NULL;

sc->cycling_cur_item = NULL;

sc->cycling_items_cmp = NULL;

}

}

}

// set cursor to default.

if (!desktop->isWaitingCursor()) {

// Do we need to reset the cursor here on key release ?

//GdkWindow* window = gtk_widget_get_window (GTK_WIDGET (sp_desktop_canvas(desktop)));

//gdk_window_set_cursor(window, event_context->cursor);

}

break;

default:

break;

}

if (!ret) {

if ((SP_EVENT_CONTEXT_CLASS(sp_select_context_parent_class))->root_handler)

ret = (SP_EVENT_CONTEXT_CLASS(sp_select_context_parent_class))->root_handler(event_context, event);

}

return ret;

}