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Diffstat (limited to 'src/ui/tools/select-tool.cpp')
| -rw-r--r-- | src/ui/tools/select-tool.cpp | 1171 |
1 files changed, 1171 insertions, 0 deletions
diff --git a/src/ui/tools/select-tool.cpp b/src/ui/tools/select-tool.cpp new file mode 100644 index 0000000..c3a7b63 --- /dev/null +++ b/src/ui/tools/select-tool.cpp @@ -0,0 +1,1171 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Selection and transformation context + * + * Authors: + * Lauris Kaplinski <lauris@kaplinski.com> + * bulia byak <buliabyak@users.sf.net> + * Abhishek Sharma + * Jon A. Cruz <jon@joncruz.org> + * + * Copyright (C) 2010 authors + * Copyright (C) 2006 Johan Engelen <johan@shouraizou.nl> + * Copyright (C) 1999-2005 Authors + * + * Released under GNU GPL v2+, read the file 'COPYING' for more information. + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" // only include where actually required! +#endif + +#include <cstring> +#include <string> + +#include <gtkmm/widget.h> +#include <gdk/gdkkeysyms.h> +#include <glibmm/i18n.h> + +#include "desktop.h" +#include "document-undo.h" +#include "document.h" +#include "include/macros.h" +#include "message-stack.h" +#include "rubberband.h" +#include "selection-chemistry.h" +#include "selection-describer.h" +#include "selection.h" +#include "seltrans.h" +#include "sp-cursor.h" + +#include "display/drawing-item.h" +#include "display/sp-canvas.h" +#include "display/sp-canvas-item.h" + +#include "object/box3d.h" +#include "style.h" + +#include "ui/pixmaps/cursor-select-d.xpm" +#include "ui/pixmaps/cursor-select-m.xpm" +#include "ui/pixmaps/handles.xpm" + +#include "ui/tools-switch.h" +#include "ui/tools/select-tool.h" + +#ifdef WITH_DBUS +#include "extension/dbus/document-interface.h" +#endif + + +using Inkscape::DocumentUndo; + +GdkPixbuf *handles[23]; + +namespace Inkscape { +namespace UI { +namespace Tools { + +static GdkCursor *CursorSelectMouseover = nullptr; +static GdkCursor *CursorSelectDragging = nullptr; + +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 + +const std::string& SelectTool::getPrefsPath() { + return SelectTool::prefsPath; +} + +const std::string SelectTool::prefsPath = "/tools/select"; + + +//Creates rotated variations for handles +static void +sp_load_handles(int start, int count, char const **xpm) { + handles[start] = gdk_pixbuf_new_from_xpm_data((gchar const **)xpm); + for(int i = start + 1; i < start + count; i++) { + // We use either the original at *start or previous loop item to rotate + handles[i] = gdk_pixbuf_rotate_simple(handles[i-1], GDK_PIXBUF_ROTATE_CLOCKWISE); + } +} + +SelectTool::SelectTool() + // Don't load a default cursor + : ToolBase(nullptr) + , dragging(false) + , moved(false) + , button_press_shift(false) + , button_press_ctrl(false) + , button_press_alt(false) + , cycling_wrap(true) + , item(nullptr) + , grabbed(nullptr) + , _seltrans(nullptr) + , _describer(nullptr) +{ + // cursors in select context + CursorSelectMouseover = sp_cursor_from_xpm(cursor_select_m_xpm); + CursorSelectDragging = sp_cursor_from_xpm(cursor_select_d_xpm); + + // selection handles + sp_load_handles(0, 2, handle_scale_xpm); + sp_load_handles(2, 2, handle_stretch_xpm); + sp_load_handles(4, 4, handle_rotate_xpm); + sp_load_handles(8, 4, handle_skew_xpm); + sp_load_handles(12, 1, handle_center_xpm); + sp_load_handles(13, 4, handle_align_xpm); + sp_load_handles(17, 1, handle_align_center_xpm); + sp_load_handles(18, 4, handle_align_corner_xpm); +} + +//static gint xp = 0, yp = 0; // where drag started +//static gint tolerance = 0; +//static bool within_tolerance = false; +static bool is_cycling = false; + + +SelectTool::~SelectTool() { + this->enableGrDrag(false); + + if (this->grabbed) { + sp_canvas_item_ungrab(this->grabbed); + this->grabbed = nullptr; + } + + delete this->_seltrans; + this->_seltrans = nullptr; + + delete this->_describer; + this->_describer = nullptr; + + if (CursorSelectDragging) { + g_object_unref(CursorSelectDragging); + CursorSelectDragging = nullptr; + } + + if (CursorSelectMouseover) { + g_object_unref(CursorSelectMouseover); + CursorSelectMouseover = nullptr; + } + this->desktop->canvas->endForcedFullRedraws(); +} + +void SelectTool::setup() { + ToolBase::setup(); + + this->_describer = new Inkscape::SelectionDescriber( + desktop->selection, + desktop->messageStack(), + _("Click selection to toggle scale/rotation handles (or Shift+s)"), + _("No objects selected. Click, Shift+click, Alt+scroll mouse on top of objects, or drag around objects to select.") + ); + + this->_seltrans = new Inkscape::SelTrans(desktop); + + sp_event_context_read(this, "show"); + sp_event_context_read(this, "transform"); + + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + + if (prefs->getBool("/tools/select/gradientdrag")) { + this->enableGrDrag(); + } +} + +void SelectTool::set(const Inkscape::Preferences::Entry& val) { + Glib::ustring path = val.getEntryName(); + + if (path == "show") { + if (val.getString() == "outline") { + this->_seltrans->setShow(Inkscape::SelTrans::SHOW_OUTLINE); + } else { + this->_seltrans->setShow(Inkscape::SelTrans::SHOW_CONTENT); + } + } +} + +bool SelectTool::sp_select_context_abort() { + Inkscape::SelTrans *seltrans = this->_seltrans; + + if (this->dragging) { + if (this->moved) { // cancel dragging an object + seltrans->ungrab(); + this->moved = FALSE; + this->dragging = FALSE; + sp_event_context_discard_delayed_snap_event(this); + drag_escaped = 1; + + if (this->item) { + // only undo if the item is still valid + if (this->item->document) { + DocumentUndo::undo(desktop->getDocument()); + } + + sp_object_unref( this->item, nullptr); + } else if (this->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(desktop->getDocument()); + } + this->item = nullptr; + + SP_EVENT_CONTEXT(this)->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(this)->defaultMessageContext()->clear(); + SP_EVENT_CONTEXT(this)->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. + * + * (Rationale: we don't usually allow users to go to the root, since that + * detracts from the layer metaphor: objects at the root level can in front + * of or behind layers. Whereas it's fine to go to the root if editing + * a document that has no layers (e.g. a non-Inkscape document).) + * + * Once we support editing SVG "islands" (e.g. <svg> embedded in an xhtml + * document), we might consider further restricting the below to disallow + * leaving a layer to go to a non-layer. + */ + SPObject *const current_layer = desktop->currentLayer(); + if (current_layer) { + SPObject *const parent = current_layer->parent; + SPGroup *current_group = dynamic_cast<SPGroup *>(current_layer); + if ( parent + && ( parent->parent + || !( current_group + && ( SPGroup::LAYER == current_group->layerMode() ) ) ) ) + { + desktop->setCurrentLayer(parent); + if (current_group && (SPGroup::LAYER != current_group->layerMode())) { + desktop->getSelection()->set(current_layer); + } + } + } +} + +bool SelectTool::item_handler(SPItem* item, GdkEvent* event) { + gint ret = FALSE; + + 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 (this->item && this->item->document == nullptr) { + this->sp_select_context_abort(); + } + + switch (event->type) { + case GDK_BUTTON_PRESS: + if (event->button.button == 1 && !this->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 + this->button_press_shift = (event->button.state & GDK_SHIFT_MASK) ? true : false; + this->button_press_ctrl = (event->button.state & GDK_CONTROL_MASK) ? true : false; + this->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 (desktop->getCanvas())); + + this->dragging = TRUE; + this->moved = FALSE; + + gdk_window_set_cursor(window, CursorSelectDragging); + + + // remember the clicked item in this->item: + if (this->item) { + sp_object_unref(this->item, nullptr); + this->item = nullptr; + } + + this->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(this->item, nullptr); + + rb_escaped = drag_escaped = 0; + + if (this->grabbed) { + sp_canvas_item_ungrab(this->grabbed); + this->grabbed = nullptr; + } + + 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, + nullptr, event->button.time); + + this->grabbed = SP_CANVAS_ITEM(desktop->drawing); + + ret = TRUE; + } + } else if (event->button.button == 3 && !this->dragging) { + // right click; do not eat it so that right-click menu can appear, but cancel dragging & rubberband + this->sp_select_context_abort(); + } + break; + + + case GDK_ENTER_NOTIFY: { + if (!desktop->isWaitingCursor() && !this->dragging) { + GdkWindow* window = gtk_widget_get_window (GTK_WIDGET (desktop->getCanvas())); + + gdk_window_set_cursor(window, CursorSelectMouseover); + } + break; + } + case GDK_LEAVE_NOTIFY: + if (!desktop->isWaitingCursor() && !this->dragging) { + Glib::RefPtr<Gdk::Window> window = Glib::wrap(GTK_WIDGET(desktop->getCanvas()))->get_window(); + + window->set_cursor(this->cursor); + } + break; + + case GDK_KEY_PRESS: + if (get_latin_keyval (&event->key) == GDK_KEY_space) { + if (this->dragging && this->grabbed) { + /* stamping mode: show content mode moving */ + _seltrans->stamp(); + ret = TRUE; + } + } else if (get_latin_keyval (&event->key) == GDK_KEY_Tab) { + if (this->dragging && this->grabbed) { + _seltrans->getNextClosestPoint(false); + ret = TRUE; + } + } else if (get_latin_keyval (&event->key) == GDK_KEY_ISO_Left_Tab) { + if (this->dragging && this->grabbed) { + _seltrans->getNextClosestPoint(true); + ret = TRUE; + } + } + break; + + default: + break; + } + + if (!ret) { + ret = ToolBase::item_handler(item, event); + } + + return ret; +} + +void SelectTool::sp_select_context_cycle_through_items(Inkscape::Selection *selection, GdkEventScroll *scroll_event, bool shift_pressed) { + if ( this->cycling_items.empty() ) + return; + + Inkscape::DrawingItem *arenaitem; + + if(cycling_cur_item) { + arenaitem = cycling_cur_item->get_arenaitem(desktop->dkey); + arenaitem->setOpacity(0.3); + } + + // Find next item and activate it + + + std::vector<SPItem *>::iterator next = cycling_items.end(); + + if ((scroll_event->direction == GDK_SCROLL_UP) || + (scroll_event->direction == GDK_SCROLL_SMOOTH && scroll_event->delta_y < 0)) { + if (! cycling_cur_item) { + next = cycling_items.begin(); + } else { + next = std::find( cycling_items.begin(), cycling_items.end(), cycling_cur_item ); + g_assert (next != cycling_items.end()); + next++; + if (next == cycling_items.end()) { + if ( cycling_wrap ) { + next = cycling_items.begin(); + } else { + next--; + } + } + } + } else { + if (! cycling_cur_item) { + next = cycling_items.end(); + next--; + } else { + next = std::find( cycling_items.begin(), cycling_items.end(), cycling_cur_item ); + g_assert (next != cycling_items.end()); + if (next == cycling_items.begin()){ + if ( cycling_wrap ) { + next = cycling_items.end(); + next--; + } + } else { + next--; + } + } + } + + this->cycling_cur_item = *next; + g_assert(next != cycling_items.end()); + g_assert(cycling_cur_item != nullptr); + + arenaitem = cycling_cur_item->get_arenaitem(desktop->dkey); + arenaitem->setOpacity(1.0); + + if (shift_pressed) { + selection->add(cycling_cur_item); + } else { + selection->set(cycling_cur_item); + } +} + +void SelectTool::sp_select_context_reset_opacities() { + for (auto item : this->cycling_items_cmp) { + if (item) { + Inkscape::DrawingItem *arenaitem = item->get_arenaitem(desktop->dkey); + arenaitem->setOpacity(SP_SCALE24_TO_FLOAT(item->style->opacity.value)); + } else { + g_assert_not_reached(); + } + } + + this->cycling_items_cmp.clear(); + this->cycling_cur_item = nullptr; +} + +bool SelectTool::root_handler(GdkEvent* event) { + SPItem *item = nullptr; + SPItem *item_at_point = nullptr, *group_at_point = nullptr, *item_in_group = nullptr; + gint ret = FALSE; + + Inkscape::Selection *selection = desktop->getSelection(); + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + + // make sure we still have valid objects to move around + if (this->item && this->item->document == nullptr) { + this->sp_select_context_abort(); + } + desktop->canvas->forceFullRedrawAfterInterruptions(5, false); + + switch (event->type) { + case GDK_2BUTTON_PRESS: + if (event->button.button == 1) { + if (!selection->isEmpty()) { + SPItem *clicked_item = selection->items().front(); + + if (dynamic_cast<SPGroup *>(clicked_item) && !dynamic_cast<SPBox3D *>(clicked_item)) { // enter group if it's not a 3D box + desktop->setCurrentLayer(clicked_item); + desktop->getSelection()->clear(); + this->dragging = false; + sp_event_context_discard_delayed_snap_event(this); + + + } 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 && !this->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 (this->grabbed) { + sp_canvas_item_ungrab(this->grabbed); + this->grabbed = nullptr; + } + + 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, + nullptr, event->button.time); + + this->grabbed = SP_CANVAS_ITEM(desktop->acetate); + + // remember what modifiers were on before button press + this->button_press_shift = (event->button.state & GDK_SHIFT_MASK) ? true : false; + this->button_press_ctrl = (event->button.state & GDK_CONTROL_MASK) ? true : false; + this->button_press_alt = (event->button.state & GDK_MOD1_MASK) ? true : false; + + this->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 + this->sp_select_context_abort(); + } + break; + + case GDK_MOTION_NOTIFY: + { + tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100); + + if ((event->motion.state & GDK_BUTTON1_MASK) && !this->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 (this->button_press_ctrl || (this->button_press_alt && !this->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 + this->dragging = TRUE; + + GdkWindow* window = gtk_widget_get_window (GTK_WIDGET (desktop->getCanvas())); + + gdk_window_set_cursor(window, CursorSelectDragging); + } + + if (this->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 + if (Inkscape::Rubberband::get(desktop)->is_started()) { + Inkscape::Rubberband::get(desktop)->stop(); + } + this->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 || this->moved || this->button_press_alt) { + // drag only if starting from an item, or if something is already grabbed, or if alt-dragging + if (!this->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)); + + { + SPGroup *selGroup = dynamic_cast<SPGroup *>(selection->single()); + if (selGroup && (selGroup->layerMode() == SPGroup::LAYER)) { + group_at_point = selGroup; + } + } + + // 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 = nullptr; + } + + // 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)) + && !this->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); + this->moved = TRUE; + } + + if (!_seltrans->isEmpty()) { + sp_event_context_discard_delayed_snap_event(this); + _seltrans->moveTo(p, event->button.state); + } + + desktop->scroll_to_point(p); + gobble_motion_events(GDK_BUTTON1_MASK); + ret = TRUE; + } else { + this->dragging = FALSE; + sp_event_context_discard_delayed_snap_event(this); + + } + + } else { + if (Inkscape::Rubberband::get(desktop)->is_started()) { + Inkscape::Rubberband::get(desktop)->move(p); + + if (Inkscape::Rubberband::get(desktop)->getMode() == RUBBERBAND_MODE_TOUCHPATH) { + this->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Draw over</b> objects to select them; release <b>Alt</b> to switch to rubberband selection")); + } else { + this->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) && (this->grabbed) && !this->space_panning) { + if (this->dragging) { + GdkWindow* window; + + if (this->moved) { + // item has been moved + _seltrans->ungrab(); + this->moved = FALSE; +#ifdef WITH_DBUS + dbus_send_ping(desktop, this->item); +#endif + } else if (this->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(this->item); + } else { + SPObject* single = selection->single(); + SPGroup *singleGroup = dynamic_cast<SPGroup *>(single); + // without shift, increase state (i.e. toggle scale/rotation handles) + if (selection->includes(this->item)) { + _seltrans->increaseState(); + } else if (singleGroup && (singleGroup->layerMode() == SPGroup::LAYER) && single->isAncestorOf(this->item)) { + _seltrans->increaseState(); + } else { + _seltrans->resetState(); + selection->set(this->item); + } + } + } else { // simple or shift click, no previous selection + _seltrans->resetState(); + selection->set(this->item); + } + } + + this->dragging = FALSE; + window = gtk_widget_get_window (GTK_WIDGET (desktop->getCanvas())); + + gdk_window_set_cursor(window, CursorSelectMouseover); + sp_event_context_discard_delayed_snap_event(this); + + if (this->item) { + sp_object_unref( this->item, nullptr); + } + + this->item = nullptr; + } else { + Inkscape::Rubberband *r = Inkscape::Rubberband::get(desktop); + + if (r->is_started() && !within_tolerance) { + // this was a rubberband drag + std::vector<SPItem*> items; + + if (r->getMode() == RUBBERBAND_MODE_RECT) { + Geom::OptRect const b = r->getRectangle(); + items = desktop->getDocument()->getItemsInBox(desktop->dkey, (*b) * desktop->dt2doc()); + } else if (r->getMode() == RUBBERBAND_MODE_TOUCHPATH) { + items = desktop->getDocument()->getItemsAtPoints(desktop->dkey, r->getPoints()); + } + + _seltrans->resetState(); + r->stop(); + this->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); + } + + } else { // it was just a click, or a too small rubberband + r->stop(); + + if (this->button_press_shift && !rb_escaped && !drag_escaped) { + // this was a shift+click or alt+shift+click, select what was clicked upon + this->button_press_shift = false; + + if (this->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); + this->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 = nullptr; + } + + } else if ((this->button_press_ctrl || this->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), this->button_press_alt, this->button_press_ctrl); + + this->button_press_ctrl = FALSE; + this->button_press_alt = FALSE; + + if (item) { + if (selection->includes(item)) { + _seltrans->increaseState(); + } else { + _seltrans->resetState(); + selection->set(item); + } + + item = nullptr; + } + } 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; + } + if (this->grabbed) { + sp_canvas_item_ungrab(this->grabbed); + this->grabbed = nullptr; + } + // Think is not necesary now + // desktop->updateNow(); + } + + if (event->button.button == 1) { + Inkscape::Rubberband::get(desktop)->stop(); // might have been started in another tool! + } + + this->button_press_shift = false; + this->button_press_ctrl = false; + this->button_press_alt = false; + break; + + case GDK_SCROLL: { + + GdkEventScroll *scroll_event = (GdkEventScroll*) event; + + if ( ! (scroll_event->state & GDK_MOD1_MASK)) // do nothing specific if alt was not pressed + break; + + bool shift_pressed = scroll_event->state & GDK_SHIFT_MASK; + is_cycling = true; + + /* Rebuild list of items underneath the mouse pointer */ + Geom::Point p = desktop->d2w(desktop->point()); + SPItem *item = desktop->getItemAtPoint(p, true, nullptr); + this->cycling_items.clear(); + + SPItem *tmp = nullptr; + while(item != nullptr) { + this->cycling_items.push_back(item); + item = desktop->getItemAtPoint(p, true, item); + if (selection->includes(item)) tmp = item; + } + + /* Compare current item list with item list during previous scroll ... */ + bool item_lists_differ = this->cycling_items != this->cycling_items_cmp; + + if(item_lists_differ) { + this->sp_select_context_reset_opacities(); + for (auto l : this->cycling_items_cmp) + selection->remove(l); // deselects the previous content of the cycling loop + this->cycling_items_cmp = (this->cycling_items); + + // set opacities in new stack + for(auto item : this->cycling_items) { + if (item) { + Inkscape::DrawingItem *arenaitem = item->get_arenaitem(desktop->dkey); + arenaitem->setOpacity(0.3); + } + } + } + if(!cycling_cur_item) cycling_cur_item = tmp; + + this->cycling_wrap = prefs->getBool("/options/selection/cycleWrap", true); + + // Cycle through the items underneath the mouse pointer, one-by-one + this->sp_select_context_cycle_through_items(selection, scroll_event, shift_pressed); + + ret = TRUE; + + GtkWindow *w =GTK_WINDOW(gtk_widget_get_toplevel( GTK_WIDGET(desktop->canvas) )); + if (w) { + gtk_window_present(w); + gtk_widget_grab_focus (GTK_WIDGET(desktop->canvas)); + } + break; + } + + case GDK_KEY_PRESS: // keybindings for select context + { + { + guint keyval = get_latin_keyval(&event->key); + + bool alt = ( MOD__ALT(event) + || (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)) { + this->defaultMessageContext()->clear(); + } else if (this->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 (this->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 (desktop->getCanvas())); + + 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); + auto const y_dir = desktop->yaxisdir(); + + switch (get_latin_keyval (&event->key)) { + case GDK_KEY_Left: // move selection left + case GDK_KEY_KP_Left: + if (!MOD__CTRL(event)) { // not ctrl + gint mul = 1 + gobble_key_events( get_latin_keyval(&event->key), 0); // with any mask + + if (MOD__ALT(event)) { // alt + if (MOD__SHIFT(event)) { + desktop->getSelection()->moveScreen(mul*-10, 0); // shift + } else { + desktop->getSelection()->moveScreen(mul*-1, 0); // no shift + } + } else { // no alt + if (MOD__SHIFT(event)) { + desktop->getSelection()->move(mul*-10*nudge, 0); // shift + } else { + desktop->getSelection()->move(mul*-nudge, 0); // no shift + } + } + + ret = TRUE; + } + break; + + case GDK_KEY_Up: // move selection up + case GDK_KEY_KP_Up: + if (!MOD__CTRL(event)) { // not ctrl + gint mul = 1 + gobble_key_events(get_latin_keyval(&event->key), 0); // with any mask + mul *= -y_dir; + + if (MOD__ALT(event)) { // alt + if (MOD__SHIFT(event)) { + desktop->getSelection()->moveScreen(0, mul*10); // shift + } else { + desktop->getSelection()->moveScreen(0, mul*1); // no shift + } + } else { // no alt + if (MOD__SHIFT(event)) { + desktop->getSelection()->move(0, mul*10*nudge); // shift + } else { + desktop->getSelection()->move(0, mul*nudge); // no shift + } + } + + ret = TRUE; + } + break; + + case GDK_KEY_Right: // move selection right + case GDK_KEY_KP_Right: + if (!MOD__CTRL(event)) { // not ctrl + gint mul = 1 + gobble_key_events(get_latin_keyval(&event->key), 0); // with any mask + + if (MOD__ALT(event)) { // alt + if (MOD__SHIFT(event)) { + desktop->getSelection()->moveScreen(mul*10, 0); // shift + } else { + desktop->getSelection()->moveScreen(mul*1, 0); // no shift + } + } else { // no alt + if (MOD__SHIFT(event)) { + desktop->getSelection()->move(mul*10*nudge, 0); // shift + } else { + desktop->getSelection()->move(mul*nudge, 0); // no shift + } + } + + ret = TRUE; + } + break; + + case GDK_KEY_Down: // move selection down + case GDK_KEY_KP_Down: + if (!MOD__CTRL(event)) { // not ctrl + gint mul = 1 + gobble_key_events(get_latin_keyval(&event->key), 0); // with any mask + mul *= -y_dir; + + if (MOD__ALT(event)) { // alt + if (MOD__SHIFT(event)) { + desktop->getSelection()->moveScreen(0, mul*-10); // shift + } else { + desktop->getSelection()->moveScreen(0, mul*-1); // no shift + } + } else { // no alt + if (MOD__SHIFT(event)) { + desktop->getSelection()->move(0, mul*-10*nudge); // shift + } else { + desktop->getSelection()->move(0, mul*-nudge); // no shift + } + } + + ret = TRUE; + } + break; + + case GDK_KEY_Escape: + if (!this->sp_select_context_abort()) { + selection->clear(); + } + + ret = TRUE; + break; + + case GDK_KEY_a: + case GDK_KEY_A: + if (MOD__CTRL_ONLY(event)) { + 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 (this->dragging && this->grabbed) { + _seltrans->stamp(); + ret = TRUE; + } + break; + + case GDK_KEY_x: + case GDK_KEY_X: + if (MOD__ALT_ONLY(event)) { + desktop->setToolboxFocusTo ("select-x"); + ret = TRUE; + } + break; + + case GDK_KEY_bracketleft: + if (MOD__ALT(event)) { + gint mul = 1 + gobble_key_events(get_latin_keyval(&event->key), 0); // with any mask + selection->rotateScreen(-mul * y_dir); + } else if (MOD__CTRL(event)) { + selection->rotate(-90 * y_dir); + } else if (snaps) { + selection->rotate(-180.0/snaps * y_dir); + } + + ret = TRUE; + break; + + case GDK_KEY_bracketright: + if (MOD__ALT(event)) { + gint mul = 1 + gobble_key_events(get_latin_keyval(&event->key), 0); // with any mask + selection->rotateScreen(mul * y_dir); + } else if (MOD__CTRL(event)) { + selection->rotate(90 * y_dir); + } else if (snaps) { + selection->rotate(180.0/snaps * y_dir); + } + + ret = TRUE; + break; + + case GDK_KEY_Return: + if (MOD__CTRL_ONLY(event)) { + if (selection->singleItem()) { + SPItem *clicked_item = selection->singleItem(); + SPGroup *clickedGroup = dynamic_cast<SPGroup *>(clicked_item); + if ( (clickedGroup && (clickedGroup->layerMode() != SPGroup::LAYER)) || dynamic_cast<SPBox3D *>(clicked_item)) { // enter group or a 3D box + desktop->setCurrentLayer(clicked_item); + desktop->getSelection()->clear(); + } else { + this->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(event)) { + sp_select_context_up_one_layer(desktop); + ret = TRUE; + } + break; + + case GDK_KEY_s: + case GDK_KEY_S: + if (MOD__SHIFT_ONLY(event)) { + if (!selection->isEmpty()) { + _seltrans->increaseState(); + } + + ret = TRUE; + } + break; + + case GDK_KEY_g: + case GDK_KEY_G: + if (MOD__SHIFT_ONLY(event)) { + desktop->selection->toGuides(); + ret = true; + } + break; + + default: + break; + } + break; + } + case GDK_KEY_RELEASE: { + guint keyval = get_latin_keyval(&event->key); + if (key_is_a_modifier (keyval)) { + this->defaultMessageContext()->clear(); + } + + bool alt = ( MOD__ALT(event) + || (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) { + // quit cycle-selection and reset opacities + if (is_cycling) { + this->sp_select_context_reset_opacities(); + is_cycling = false; + } + } + } + + // 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 (desktop->getCanvas())); + //gdk_window_set_cursor(window, event_context->cursor); + } + break; + } + default: + break; + } + + if (!ret) { + ret = ToolBase::root_handler(event); + } + + return ret; +} + +} +} +} + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 : |