diff options
Diffstat (limited to '')
| -rw-r--r-- | src/widgets/desktop-widget.cpp | 2012 |
1 files changed, 2012 insertions, 0 deletions
diff --git a/src/widgets/desktop-widget.cpp b/src/widgets/desktop-widget.cpp new file mode 100644 index 0000000..7cfa223 --- /dev/null +++ b/src/widgets/desktop-widget.cpp @@ -0,0 +1,2012 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/** \file + * Desktop widget implementation + */ +/* Authors: + * Lauris Kaplinski <lauris@kaplinski.com> + * MenTaLguY <mental@rydia.net> + * bulia byak <buliabyak@users.sf.net> + * Ralf Stephan <ralf@ark.in-berlin.de> + * John Bintz <jcoswell@coswellproductions.org> + * Johan Engelen <j.b.c.engelen@ewi.utwente.nl> + * Jon A. Cruz <jon@joncruz.org> + * Abhishek Sharma + * + * Copyright (C) 2007 Johan Engelen + * Copyright (C) 2006 John Bintz + * Copyright (C) 2004 MenTaLguY + * Copyright (C) 1999-2002 Lauris Kaplinski + * Copyright (C) 2000-2001 Ximian, Inc. + * + * 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 <2geom/rect.h> + +#include "attributes.h" +#include "cms-system.h" +#include "conn-avoid-ref.h" +#include "desktop-events.h" +#include "desktop-widget.h" +#include "desktop.h" +#include "document-undo.h" +#include "ege-color-prof-tracker.h" +#include "enums.h" +#include "file.h" +#include "inkscape-application.h" +#include "inkscape-window.h" +#include "inkscape-version.h" + +#include "display/control/canvas-axonomgrid.h" +#include "display/control/canvas-item-drawing.h" +#include "display/control/canvas-item-guideline.h" + +#include "extension/db.h" + +#include "object/sp-image.h" +#include "object/sp-namedview.h" +#include "object/sp-root.h" + +#include "ui/shortcuts.h" +#include "ui/dialog/swatches.h" +#include "ui/icon-loader.h" +#include "ui/icon-names.h" +#include "ui/monitor.h" // Monitor aspect ratio +#include "ui/dialog/dialog-container.h" +#include "ui/dialog/dialog-multipaned.h" +#include "ui/dialog/dialog-window.h" +#include "ui/tools/box3d-tool.h" +#include "ui/tools/text-tool.h" +#include "ui/util.h" +#include "ui/widget/canvas.h" +#include "ui/widget/canvas-grid.h" +#include "ui/widget/combo-tool-item.h" +#include "ui/widget/ink-ruler.h" +#include "ui/widget/layer-selector.h" +#include "ui/widget/page-selector.h" +#include "ui/widget/selected-style.h" +#include "ui/widget/spin-button-tool-item.h" +#include "ui/widget/unit-tracker.h" +#include "ui/themes.h" + +#include "util/units.h" + +// We're in the "widgets" directory, so no need to explicitly prefix these: +#include "spw-utilities.h" +#include "toolbox.h" +#include "widget-sizes.h" + +#include "ui/widget/color-palette.h" +#include "ui/widget/preview.h" +#include "ui/dialog/color-item.h" +#include "widgets/ege-paint-def.h" + +using Inkscape::DocumentUndo; +using Inkscape::UI::Dialog::DialogContainer; +using Inkscape::UI::Dialog::DialogMultipaned; +using Inkscape::UI::Dialog::DialogWindow; +using Inkscape::UI::Widget::UnitTracker; +using Inkscape::UI::ToolboxFactory; +using Inkscape::Util::unit_table; + + +//--------------------------------------------------------------------- +/* SPDesktopWidget */ + +class CMSPrefWatcher { +public: + CMSPrefWatcher() : + _dpw(*this), + _spw(*this), + _tracker(ege_color_prof_tracker_new(nullptr)) + { + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + g_signal_connect( G_OBJECT(_tracker), "modified", G_CALLBACK(hook), this ); + prefs->addObserver(_dpw); + prefs->addObserver(_spw); + } + virtual ~CMSPrefWatcher() = default; + + //virtual void notify(PrefValue &); + void add( SPDesktopWidget* dtw ) { + _widget_list.push_back(dtw); + } + void remove( SPDesktopWidget* dtw ) { + _widget_list.remove(dtw); + } + +private: + static void hook(EgeColorProfTracker *tracker, gint b, CMSPrefWatcher *watcher); + + class DisplayProfileWatcher : public Inkscape::Preferences::Observer { + public: + DisplayProfileWatcher(CMSPrefWatcher &pw) : Observer("/options/displayprofile"), _pw(pw) {} + void notify(Inkscape::Preferences::Entry const &/*val*/) override { + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + _pw._setCmsSensitive(!prefs->getString("/options/displayprofile/uri").empty()); + _pw._refreshAll(); + } + private: + CMSPrefWatcher &_pw; + }; + + DisplayProfileWatcher _dpw; + + class SoftProofWatcher : public Inkscape::Preferences::Observer { + public: + SoftProofWatcher(CMSPrefWatcher &pw) : Observer("/options/softproof"), _pw(pw) {} + void notify(Inkscape::Preferences::Entry const &) override { + _pw._refreshAll(); + } + private: + CMSPrefWatcher &_pw; + }; + + SoftProofWatcher _spw; + + void _refreshAll(); + void _setCmsSensitive(bool value); + + std::list<SPDesktopWidget*> _widget_list; + EgeColorProfTracker *_tracker; + + friend class DisplayProfileWatcher; + friend class SoftproofWatcher; +}; + +void CMSPrefWatcher::hook(EgeColorProfTracker * /*tracker*/, gint monitor, CMSPrefWatcher * /*watcher*/) +{ + unsigned char* buf = nullptr; + guint len = 0; + + ege_color_prof_tracker_get_profile_for( monitor, reinterpret_cast<gpointer*>(&buf), &len ); + Glib::ustring id = Inkscape::CMSSystem::setDisplayPer( buf, len, monitor ); +} + +void CMSPrefWatcher::_refreshAll() +{ + for (auto & it : _widget_list) { + it->requestCanvasUpdate(); + } +} + +void CMSPrefWatcher::_setCmsSensitive(bool enabled) +{ + for ( auto dtw : _widget_list ) { + auto cms_adj = dtw->get_canvas_grid()->GetCmsAdjust(); + if ( cms_adj->get_sensitive() != enabled ) { + dtw->cms_adjust_set_sensitive(enabled); + } + } +} + +static CMSPrefWatcher* watcher = nullptr; + +SPDesktopWidget::SPDesktopWidget(InkscapeWindow* inkscape_window) + : window (inkscape_window) +{ + auto *const dtw = this; + + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + + /* Main table */ + dtw->_vbox = Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_VERTICAL)); + dtw->_vbox->set_name("DesktopMainTable"); + dtw->add(*dtw->_vbox); + + /* Status bar */ + dtw->_statusbar = Gtk::manage(new Gtk::Box()); + dtw->_statusbar->set_name("DesktopStatusBar"); + dtw->_vbox->pack_end(*dtw->_statusbar, false, true); + + /* Swatch Bar */ + dtw->_panels = Gtk::manage(new Inkscape::UI::Dialog::SwatchesPanel("/embedded/swatches")); + dtw->_panels->set_vexpand(false); + dtw->_vbox->pack_end(*dtw->_panels, false, true); + + /* DesktopHBox (Vertical toolboxes, canvas) */ + dtw->_hbox = Gtk::manage(new Gtk::Box()); + dtw->_hbox->set_name("DesktopHbox"); + + dtw->_tbbox = Gtk::manage(new Gtk::Paned(Gtk::ORIENTATION_HORIZONTAL)); + dtw->_tbbox->set_name("ToolboxCanvasPaned"); + dtw->_hbox->pack_start(*dtw->_tbbox, true, true); + + dtw->_vbox->pack_end(*dtw->_hbox, true, true); + + dtw->_top_toolbars = Gtk::make_managed<Gtk::Grid>(); + dtw->_top_toolbars->set_name("TopToolbars"); + dtw->_vbox->pack_end(*dtw->_top_toolbars, false, true); + + /* Toolboxes */ + dtw->aux_toolbox = ToolboxFactory::createAuxToolbox(); + + dtw->snap_toolbox = ToolboxFactory::createSnapToolbox(); + ToolboxFactory::setOrientation(dtw->snap_toolbox, GTK_ORIENTATION_HORIZONTAL); + dtw->_top_toolbars->attach(*Glib::wrap(dtw->snap_toolbox), 1, 0, 1, 2); + + dtw->commands_toolbox = ToolboxFactory::createCommandsToolbox(); + auto cmd = Glib::wrap(dtw->commands_toolbox); + dtw->_top_toolbars->attach(*cmd, 0, 0); + + dtw->_top_toolbars->attach(*Glib::wrap(dtw->aux_toolbox), 0, 1); + + dtw->tool_toolbox = ToolboxFactory::createToolToolbox(inkscape_window); + ToolboxFactory::setOrientation( dtw->tool_toolbox, GTK_ORIENTATION_VERTICAL ); + dtw->_tbbox->pack1(*Glib::wrap(dtw->tool_toolbox), false, true); + auto tbox_width = prefs->getEntry("/toolbox/tools/width"); + if (tbox_width.isValid()) { + _tbbox->set_position(tbox_width.getIntLimited(32, 8, 500)); + } + + auto set_visible_buttons = [=](GtkWidget* tb) { + int buttons_before_separator = 0; + Gtk::Widget* last_sep = nullptr; + Gtk::FlowBox* last_box = nullptr; + sp_traverse_widget_tree(Glib::wrap(tb), [&](Gtk::Widget* widget) { + if (auto flowbox = dynamic_cast<Gtk::FlowBox*>(widget)) { + flowbox->show(); + flowbox->set_no_show_all(); + flowbox->set_max_children_per_line(1); + last_box = flowbox; + } + else if (auto btn = dynamic_cast<Gtk::Button*>(widget)) { + auto name = sp_get_action_target(widget); + auto show = prefs->getBool(ToolboxFactory::get_tool_visible_buttons_path(name), true); + auto parent = btn->get_parent(); + if (show) { + parent->show(); + ++buttons_before_separator; + // keep the max_children up to date improves display. + last_box->set_max_children_per_line(buttons_before_separator); + last_sep = nullptr; + } + else { + parent->hide(); + } + } + else if (auto sep = dynamic_cast<Gtk::Separator*>(widget)) { + if (buttons_before_separator <= 0) { + sep->hide(); + } + else { + sep->show(); + buttons_before_separator = 0; + last_sep = sep; + } + } + return false; + }); + if (last_sep) { + // hide trailing separator + last_sep->hide(); + } + }; + auto set_toolbar_prefs = [=]() { + int min = ToolboxFactory::min_pixel_size; + int max = ToolboxFactory::max_pixel_size; + int s = prefs->getIntLimited(ToolboxFactory::tools_icon_size, min, min, max); + ToolboxFactory::set_icon_size(tool_toolbox, s); + }; + + // watch for changes + _tb_icon_sizes1 = prefs->createObserver(ToolboxFactory::tools_icon_size, [=]() { set_toolbar_prefs(); }); + _tb_icon_sizes2 = prefs->createObserver(ToolboxFactory::ctrlbars_icon_size, [=]() { apply_ctrlbar_settings(); }); + _tb_visible_buttons = prefs->createObserver(ToolboxFactory::tools_visible_buttons, [=]() { set_visible_buttons(tool_toolbox); }); + + // restore preferences + set_toolbar_prefs(); + apply_ctrlbar_settings(); + set_visible_buttons(tool_toolbox); + + /* Canvas Grid (canvas, rulers, scrollbars, etc.) */ + // desktop widgets owns it + _canvas_grid = new Inkscape::UI::Widget::CanvasGrid(this); + + /* Canvas */ + dtw->_canvas = _canvas_grid->GetCanvas(); + + dtw->_canvas->set_cms_active(prefs->getBool("/options/displayprofile/enable")); + + /* Dialog Container */ + _container = Gtk::manage(new DialogContainer(inkscape_window)); + _columns = _container->get_columns(); + _columns->set_dropzone_sizes(2, -1); + dtw->_tbbox->pack2(*_container, true, true); + + _canvas_grid->set_hexpand(true); + _canvas_grid->set_vexpand(true); + _columns->append(_canvas_grid); + + // --------------- Status Tool Bar ------------------// + + // Selected Style (Fill/Stroke/Opacity) + dtw->_selected_style = Gtk::manage(new Inkscape::UI::Widget::SelectedStyle(true)); + dtw->_statusbar->pack_start(*dtw->_selected_style, false, false); + _selected_style->show_all(); + _selected_style->set_no_show_all(); + + // Layer Selector + _layer_selector = Gtk::manage(new Inkscape::UI::Widget::LayerSelector(nullptr)); + // separate layer selector buttons from status text + auto vseparator = Gtk::make_managed<Gtk::Separator>(Gtk::ORIENTATION_VERTICAL); + vseparator->set_margin_end(6); + vseparator->set_margin_top(6); + vseparator->set_margin_bottom(6); + _layer_selector->pack_end(*vseparator); + _layer_selector->show_all(); + _layer_selector->set_no_show_all(); + dtw->_statusbar->pack_start(*_layer_selector, false, false, 1); + + // Select Status + dtw->_select_status = Gtk::manage(new Gtk::Label()); + dtw->_select_status->set_name("SelectStatus"); + dtw->_select_status->set_ellipsize(Pango::ELLIPSIZE_END); + dtw->_select_status->set_line_wrap(true); + dtw->_select_status->set_lines(2); + dtw->_select_status->set_halign(Gtk::ALIGN_START); + dtw->_select_status->set_size_request(1, -1); + + // Display the initial welcome message in the statusbar + dtw->_select_status->set_markup(_("<b>Welcome to Inkscape!</b> Use shape or freehand tools to create objects; use selector (arrow) to move or transform them.")); + + dtw->_statusbar->pack_start(*dtw->_select_status, true, true); + + dtw->_zoom_status_box = Gtk::make_managed<Gtk::Box>(); + // Zoom status spinbutton --------------- + auto zoom_adj = Gtk::Adjustment::create(100.0, log(SP_DESKTOP_ZOOM_MIN)/log(2), log(SP_DESKTOP_ZOOM_MAX)/log(2), 0.1); + dtw->_zoom_status = Gtk::manage(new Inkscape::UI::Widget::SpinButton(zoom_adj)); + + dtw->_zoom_status->set_defocus_widget(dtw->_canvas); + dtw->_zoom_status->set_tooltip_text(_("Zoom")); + dtw->_zoom_status->set_size_request(STATUS_ZOOM_WIDTH, -1); + dtw->_zoom_status->set_width_chars(6); + dtw->_zoom_status->set_numeric(false); + dtw->_zoom_status->set_update_policy(Gtk::UPDATE_ALWAYS); + + // Callbacks + dtw->_zoom_status_input_connection = dtw->_zoom_status->signal_input().connect(sigc::mem_fun(dtw, &SPDesktopWidget::zoom_input)); + dtw->_zoom_status_output_connection = dtw->_zoom_status->signal_output().connect(sigc::mem_fun(dtw, &SPDesktopWidget::zoom_output)); + dtw->_zoom_status_value_changed_connection = dtw->_zoom_status->signal_value_changed().connect(sigc::mem_fun(dtw, &SPDesktopWidget::zoom_value_changed)); + dtw->_zoom_status_populate_popup_connection = dtw->_zoom_status->signal_populate_popup().connect(sigc::mem_fun(dtw, &SPDesktopWidget::zoom_populate_popup)); + + // Style + auto css_provider_spinbutton = Gtk::CssProvider::create(); + css_provider_spinbutton->load_from_data("* { padding-left: 2px; padding-right: 2px; padding-top: 0px; padding-bottom: 0px;}"); // Shouldn't this be in a style sheet? Used also by rotate. + + dtw->_zoom_status->set_name("ZoomStatus"); + auto context_zoom = dtw->_zoom_status->get_style_context(); + context_zoom->add_provider(css_provider_spinbutton, GTK_STYLE_PROVIDER_PRIORITY_APPLICATION); + + dtw->_rotation_status_box = Gtk::make_managed<Gtk::Box>(); + dtw->_rotation_status_box->set_margin_start(10); + // Rotate status spinbutton --------------- + auto rotation_adj = Gtk::Adjustment::create(0, -360.0, 360.0, 1.0); + + dtw->_rotation_status = Gtk::manage(new Inkscape::UI::Widget::SpinButton(rotation_adj)); + + // FIXME: This is a bit of a hack, to avoid the ExpressionEvaluator struggling to parse the + // degree symbol. It would be better to improve ExpressionEvaluator so it copes + dtw->_rotation_status->set_dont_evaluate(true); + + dtw->_rotation_status->set_defocus_widget(dtw->_canvas); + dtw->_rotation_status->set_tooltip_text(_("Rotation. (Also Ctrl+Shift+Scroll)")); + dtw->_rotation_status->set_size_request(STATUS_ROTATION_WIDTH, -1); + dtw->_rotation_status->set_width_chars(7); + dtw->_rotation_status->set_numeric(false); + dtw->_rotation_status->set_digits(2); + dtw->_rotation_status->set_increments(1.0, 15.0); + dtw->_rotation_status->set_update_policy(Gtk::UPDATE_ALWAYS); + + // Callbacks + dtw->_rotation_status_output_connection = dtw->_rotation_status->signal_output().connect(sigc::mem_fun(dtw, &SPDesktopWidget::rotation_output)); + dtw->_rotation_status_value_changed_connection = dtw->_rotation_status->signal_value_changed().connect(sigc::mem_fun(dtw, &SPDesktopWidget::rotation_value_changed)); + dtw->_rotation_status_populate_popup_connection = dtw->_rotation_status->signal_populate_popup().connect(sigc::mem_fun(dtw, &SPDesktopWidget::rotation_populate_popup)); + + // Style + dtw->_rotation_status->set_name("RotationStatus"); + auto context_rotation = dtw->_rotation_status->get_style_context(); + context_rotation->add_provider(css_provider_spinbutton, GTK_STYLE_PROVIDER_PRIORITY_APPLICATION); + + // Cursor coordinates + dtw->_coord_status = Gtk::manage(new Gtk::Grid()); + dtw->_coord_status->set_name("CoordinateAndZStatus"); + dtw->_coord_status->set_row_spacing(0); + dtw->_coord_status->set_column_spacing(10); + dtw->_coord_status->set_margin_end(10); + auto sep = Gtk::manage(new Gtk::Separator(Gtk::ORIENTATION_VERTICAL)); + sep->set_name("CoordinateSeparator"); + dtw->_coord_status->attach(*sep, 0, 0, 1, 2); + + dtw->_coord_status->set_tooltip_text(_("Cursor coordinates")); + auto label_x = Gtk::manage(new Gtk::Label(_("X:"))); + auto label_y = Gtk::manage(new Gtk::Label(_("Y:"))); + label_x->set_halign(Gtk::ALIGN_START); + label_y->set_halign(Gtk::ALIGN_START); + dtw->_coord_status->attach(*label_x, 1, 0, 1, 1); + dtw->_coord_status->attach(*label_y, 1, 1, 1, 1); + dtw->_coord_status_x = Gtk::manage(new Gtk::Label()); + dtw->_coord_status_y = Gtk::manage(new Gtk::Label()); + dtw->_coord_status_x->set_name("CoordinateStatusX"); + dtw->_coord_status_y->set_name("CoordinateStatusY"); + dtw->_coord_status_x->set_markup(" 0.00 "); + dtw->_coord_status_y->set_markup(" 0.00 "); + + // TRANSLATORS: Abbreviation for canvas zoom level + auto label_z = Gtk::manage(new Gtk::Label(C_("canvas", "Z:"))); + label_z->set_name("ZLabel"); + // TRANSLATORS: Abbreviation for canvas rotation + auto label_r = Gtk::manage(new Gtk::Label(C_("canvas", "R:"))); + label_r->set_name("RLabel"); + + dtw->_coord_status_x->set_halign(Gtk::ALIGN_END); + dtw->_coord_status_y->set_halign(Gtk::ALIGN_END); + dtw->_coord_status->attach(*dtw->_coord_status_x, 2, 0, 1, 1); + dtw->_coord_status->attach(*dtw->_coord_status_y, 2, 1, 1, 1); + dtw->_coord_status->show_all(); + dtw->_coord_status->set_no_show_all(); + + dtw->_zoom_status_box->pack_start(*label_z, true, true); + dtw->_zoom_status_box->pack_end(*dtw->_zoom_status, true, true); + dtw->_zoom_status_box->show_all(); + + dtw->_rotation_status_box->pack_start(*label_r, true, true); + dtw->_rotation_status_box->pack_end(*dtw->_rotation_status, true, true); + dtw->_rotation_status_box->show_all(); + dtw->_rotation_status_box->set_no_show_all(); + + dtw->_statusbar->pack_end(*dtw->_rotation_status_box, false, false); + dtw->_statusbar->pack_end(*dtw->_zoom_status_box, false, false); + dtw->_statusbar->pack_end(*dtw->_coord_status, false, false); + + update_statusbar_visibility(); + + _statusbar_preferences_observer = prefs->createObserver("/statusbar/visibility", [=]() { + update_statusbar_visibility(); + }); + + // --------------- Color Management ---------------- // + dtw->_tracker = ege_color_prof_tracker_new(GTK_WIDGET(_layer_selector->gobj())); + bool fromDisplay = prefs->getBool( "/options/displayprofile/from_display"); + if ( fromDisplay ) { + auto id = Inkscape::CMSSystem::getDisplayId(0); + dtw->_canvas->set_cms_key(id); + dtw->cms_adjust_set_sensitive(!id.empty()); + } + g_signal_connect( G_OBJECT(dtw->_tracker), "changed", G_CALLBACK(SPDesktopWidget::color_profile_event), dtw ); + + // ------------------ Finish Up -------------------- // + dtw->_vbox->show_all(); + dtw->_canvas_grid->ShowCommandPalette(false); + + dtw->_canvas->grab_focus(); +} + +void SPDesktopWidget::apply_ctrlbar_settings() { + Inkscape::Preferences* prefs = Inkscape::Preferences::get(); + int min = ToolboxFactory::min_pixel_size; + int max = ToolboxFactory::max_pixel_size; + int size = prefs->getIntLimited(ToolboxFactory::ctrlbars_icon_size, min, min, max); + ToolboxFactory::set_icon_size(snap_toolbox, size); + ToolboxFactory::set_icon_size(commands_toolbox, size); + ToolboxFactory::set_icon_size(aux_toolbox, size); +} + +void SPDesktopWidget::update_statusbar_visibility() { + auto prefs = Inkscape::Preferences::get(); + Glib::ustring path("/statusbar/visibility/"); + + _coord_status->set_visible(prefs->getBool(path + "coordinates", true)); + _rotation_status_box->set_visible(prefs->getBool(path + "rotation", true)); + _layer_selector->set_visible(prefs->getBool(path + "layer", true)); + _selected_style->set_visible(prefs->getBool(path + "style", true)); +} + +void +SPDesktopWidget::setMessage (Inkscape::MessageType type, const gchar *message) +{ + _select_status->set_markup(message ? message : ""); + + // make sure the important messages are displayed immediately! + if (type == Inkscape::IMMEDIATE_MESSAGE && _select_status->get_is_drawable()) { + _select_status->queue_draw(); + } + + _select_status->set_tooltip_text(_select_status->get_text()); +} + +Geom::Point +SPDesktopWidget::window_get_pointer() +{ + int x, y; + auto window = _canvas->get_window(); + auto display = window->get_display(); + auto seat = display->get_default_seat(); + auto device = seat->get_pointer(); + Gdk::ModifierType m; + window->get_device_position(device, x, y, m); + + return Geom::Point(x, y); +} + +/** + * Called before SPDesktopWidget destruction. + * (Might be called more than once) + */ +void +SPDesktopWidget::on_unrealize() +{ + auto dtw = this; + + if (_tbbox) { + Inkscape::Preferences::get()->setInt("/toolbox/tools/width", _tbbox->get_position()); + } + + if (dtw->desktop) { + if ( watcher ) { + watcher->remove(dtw); + } + + for (auto &conn : dtw->_connections) { + conn.disconnect(); + } + + // Canvas + dtw->_canvas->set_drawing(nullptr); // Ensures deactivation + dtw->_canvas->set_desktop(nullptr); // Todo: Remove desktop dependency. + + // Zoom + dtw->_zoom_status_input_connection.disconnect(); + dtw->_zoom_status_output_connection.disconnect(); + g_signal_handlers_disconnect_by_data(G_OBJECT(dtw->_zoom_status->gobj()), dtw->_zoom_status->gobj()); + dtw->_zoom_status_value_changed_connection.disconnect(); + dtw->_zoom_status_populate_popup_connection.disconnect(); + + // Rotation + dtw->_rotation_status_input_connection.disconnect(); + dtw->_rotation_status_output_connection.disconnect(); + g_signal_handlers_disconnect_by_data(G_OBJECT(dtw->_rotation_status->gobj()), dtw->_rotation_status->gobj()); + dtw->_rotation_status_value_changed_connection.disconnect(); + dtw->_rotation_status_populate_popup_connection.disconnect(); + + dtw->_panels->setDesktop(nullptr); + + delete _container; // will unrealize dtw->_canvas + + _layer_selector->setDesktop(nullptr); + INKSCAPE.remove_desktop(dtw->desktop); // clears selection and event_context + dtw->modified_connection.disconnect(); + dtw->desktop->destroy(); + Inkscape::GC::release (dtw->desktop); + dtw->desktop = nullptr; + } + + parent_type::on_unrealize(); +} + +SPDesktopWidget::~SPDesktopWidget() { + delete _canvas_grid; +} + +/** + * Set the title in the desktop-window (if desktop has an own window). + * + * The title has form file name: desktop number - Inkscape. + * The desktop number is only shown if it's 2 or higher, + */ +void +SPDesktopWidget::updateTitle(gchar const* uri) +{ + if (window) { + + SPDocument *doc = this->desktop->doc(); + auto namedview = doc->getNamedView(); + + std::string Name; + if (doc->isModifiedSinceSave()) { + Name += "*"; + } + + Name += uri; + + if (namedview->viewcount > 1) { + Name += ": "; + Name += std::to_string(namedview->viewcount); + } + Name += " ("; + + auto render_mode = desktop->getCanvas()->get_render_mode(); + auto color_mode = desktop->getCanvas()->get_color_mode(); + + if (render_mode == Inkscape::RenderMode::OUTLINE) { + Name += N_("outline"); + } else if (render_mode == Inkscape::RenderMode::NO_FILTERS) { + Name += N_("no filters"); + } else if (render_mode == Inkscape::RenderMode::VISIBLE_HAIRLINES) { + Name += N_("visible hairlines"); + } else if (render_mode == Inkscape::RenderMode::OUTLINE_OVERLAY) { + Name += N_("outline overlay"); + } + + if (color_mode != Inkscape::ColorMode::NORMAL && + render_mode != Inkscape::RenderMode::NORMAL) { + Name += ", "; + } + + if (color_mode == Inkscape::ColorMode::GRAYSCALE) { + Name += N_("grayscale"); + } else if (color_mode == Inkscape::ColorMode::PRINT_COLORS_PREVIEW) { + Name += N_("print colors preview"); + } + + if (*Name.rbegin() == '(') { // Can not use C++11 .back() or .pop_back() with ustring! + Name.erase(Name.size() - 2); + } else { + Name += ")"; + } + + Name += " - Inkscape"; + + // Name += " ("; + // Name += Inkscape::version_string; + // Name += ")"; + + window->set_title (Name); + } +} + +DialogContainer *SPDesktopWidget::getDialogContainer() +{ + return _container; +} + +/** + * Resize handler, keeps the desktop centered. + */ +void SPDesktopWidget::on_size_allocate(Gtk::Allocation &allocation) +{ + // This function is called a lot during mouse move events without + // resizing the widget. Desktop position/zoom must not be updated + // for these trivial invocations. + if (allocation == get_allocation()) { + parent_type::on_size_allocate(allocation); + return; + } + + Geom::Rect const d_canvas = _canvas->get_area_world(); + + parent_type::on_size_allocate(allocation); + + if (d_canvas.hasZeroArea()) { + return; + } + + Geom::Point const midpoint_dt = desktop->w2d(d_canvas.midpoint()); + double zoom = desktop->current_zoom(); + + if (_canvas_grid->GetStickyZoom()->get_active()) { + /* Calculate adjusted zoom */ + double oldshortside = d_canvas.minExtent(); + double newshortside = _canvas->get_area_world().minExtent(); + zoom *= newshortside / oldshortside; + } + + desktop->zoom_absolute(midpoint_dt, zoom, false); +} + +/** + * Callback to realize desktop widget. + */ +void SPDesktopWidget::on_realize() +{ + SPDesktopWidget *dtw = this; + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + + parent_type::on_realize(); + + Geom::Rect d = Geom::Rect::from_xywh(Geom::Point(0,0), (dtw->desktop->doc())->getDimensions()); + + if (d.width() < 1.0 || d.height() < 1.0) return; + + dtw->desktop->set_display_area (d, 10); + + dtw->updateNamedview(); + gchar *gtkThemeName; + gboolean gtkApplicationPreferDarkTheme; + GtkSettings *settings = gtk_settings_get_default(); + Gtk::Container *window = get_toplevel(); + if (settings && window) { + g_object_get(settings, "gtk-theme-name", >kThemeName, nullptr); + g_object_get(settings, "gtk-application-prefer-dark-theme", >kApplicationPreferDarkTheme, nullptr); + bool dark = INKSCAPE.themecontext->isCurrentThemeDark(dynamic_cast<Gtk::Container *>(window)); + if (dark) { + prefs->setBool("/theme/darkTheme", true); + window->get_style_context()->add_class("dark"); + window->get_style_context()->remove_class("bright"); + } else { + prefs->setBool("/theme/darkTheme", false); + window->get_style_context()->add_class("bright"); + window->get_style_context()->remove_class("dark"); + } + if (prefs->getBool("/theme/symbolicIcons", false)) { + window->get_style_context()->add_class("symbolic"); + window->get_style_context()->remove_class("regular"); + } else { + window->get_style_context()->add_class("regular"); + window->get_style_context()->remove_class("symbolic"); + } + INKSCAPE.themecontext->getChangeThemeSignal().emit(); + } +} + +/* This is just to provide access to common functionality from sp_desktop_widget_realize() above + as well as from SPDesktop::change_document() */ +void SPDesktopWidget::updateNamedview() +{ + // Listen on namedview modification + // originally (prior to the sigc++ conversion) the signal was simply + // connected twice rather than disconnecting the first connection + modified_connection.disconnect(); + + modified_connection = desktop->namedview->connectModified(sigc::mem_fun(*this, &SPDesktopWidget::namedviewModified)); + namedviewModified(desktop->namedview, SP_OBJECT_MODIFIED_FLAG); + + updateTitle( desktop->doc()->getDocumentName() ); +} + +/** + * Callback to handle desktop widget event. + */ +gint +SPDesktopWidget::event(GtkWidget *widget, GdkEvent *event, SPDesktopWidget *dtw) +{ + if (event->type == GDK_BUTTON_PRESS) { + // defocus any spinbuttons + dtw->_canvas->grab_focus(); + } + + if ((event->type == GDK_BUTTON_PRESS) && (event->button.button == 3)) { + if (event->button.state & GDK_SHIFT_MASK) { + dtw->desktop->getCanvasDrawing()->set_sticky(true); + } else { + dtw->desktop->getCanvasDrawing()->set_sticky(false); + } + } + + { + // The key press/release events need to be passed to desktop handler explicitly, + // because otherwise the event contexts only receive key events when the mouse cursor + // is over the canvas. This redirection is only done for key events and only if there's no + // current item on the canvas, because item events and all mouse events are caught + // and passed on by the canvas acetate (I think). --bb + + if ((event->type == GDK_KEY_PRESS || event->type == GDK_KEY_RELEASE) + && !dtw->_canvas->get_current_canvas_item()) { + return (gint)sp_desktop_root_handler (event, dtw->desktop); + } + } + + return FALSE; +} + +void +SPDesktopWidget::color_profile_event(EgeColorProfTracker */*tracker*/, SPDesktopWidget *dtw) +{ + // Handle profile changes + GdkWindow *window = dtw->get_window()->gobj(); + + // Figure out the ID for the monitor + auto display = gdk_display_get_default(); + auto monitor = gdk_display_get_monitor_at_window(display, window); + + int n_monitors = gdk_display_get_n_monitors(display); + + int monitorNum = -1; + + // Now loop through the set of monitors and figure out whether this monitor matches + for (int i_monitor = 0; i_monitor < n_monitors; ++i_monitor) { + auto monitor_at_index = gdk_display_get_monitor(display, i_monitor); + if (monitor_at_index == monitor) monitorNum = i_monitor; + } + + Glib::ustring id = Inkscape::CMSSystem::getDisplayId( monitorNum ); + dtw->_canvas->set_cms_key(id); + dtw->requestCanvasUpdate(); + dtw->cms_adjust_set_sensitive(!id.empty()); +} + +void +SPDesktopWidget::update_guides_lock() +{ + bool down = _canvas_grid->GetGuideLock()->get_active(); + auto nv = desktop->getNamedView(); + bool lock = nv->getLockGuides(); + + if (down != lock) { + nv->toggleLockGuides(); + if (down) { + setMessage (Inkscape::NORMAL_MESSAGE, _("Locked all guides")); + } else { + setMessage (Inkscape::NORMAL_MESSAGE, _("Unlocked all guides")); + } + } +} + +void +SPDesktopWidget::cms_adjust_toggled() +{ + auto _cms_adjust = _canvas_grid->GetCmsAdjust(); + + bool down = _cms_adjust->get_active(); + if ( down != _canvas->get_cms_active() ) { + _canvas->set_cms_active(down); + desktop->redrawDesktop(); + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + prefs->setBool("/options/displayprofile/enable", down); + if (down) { + setMessage (Inkscape::NORMAL_MESSAGE, _("Color-managed display is <b>enabled</b> in this window")); + } else { + setMessage (Inkscape::NORMAL_MESSAGE, _("Color-managed display is <b>disabled</b> in this window")); + } + } +} + +void +SPDesktopWidget::cms_adjust_set_sensitive(bool enabled) +{ + _canvas_grid->GetCmsAdjust()->set_sensitive(enabled); +} + +/** + * \pre this->desktop->main != 0 + */ +void +SPDesktopWidget::requestCanvasUpdate() { + // ^^ also this->desktop != 0 + g_return_if_fail(this->desktop != nullptr); + desktop->getCanvas()->queue_draw(); +} + +void +SPDesktopWidget::requestCanvasUpdateAndWait() { + requestCanvasUpdate(); + + while (gtk_events_pending()) + gtk_main_iteration_do(FALSE); + +} + +void +SPDesktopWidget::enableInteraction() +{ + g_return_if_fail(_interaction_disabled_counter > 0); + + _interaction_disabled_counter--; + + if (_interaction_disabled_counter == 0) { + this->set_sensitive(); + } +} + +void +SPDesktopWidget::disableInteraction() +{ + if (_interaction_disabled_counter == 0) { + this->set_sensitive(false); + } + + _interaction_disabled_counter++; +} + +void +SPDesktopWidget::setCoordinateStatus(Geom::Point p) +{ + gchar *cstr; + cstr = g_strdup_printf("%7.2f", _dt2r * p[Geom::X]); + _coord_status_x->set_markup(cstr); + g_free(cstr); + + cstr = g_strdup_printf("%7.2f", _dt2r * p[Geom::Y]); + _coord_status_y->set_markup(cstr); + g_free(cstr); +} + +void +SPDesktopWidget::letZoomGrabFocus() +{ + if (_zoom_status) _zoom_status->grab_focus(); +} + +void +SPDesktopWidget::getWindowGeometry (gint &x, gint &y, gint &w, gint &h) +{ + if (window) { + window->get_size (w, h); + window->get_position (x, y); + // The get_positon is very unreliable (see Gtk docs) and will often return zero. + if (!x && !y) { + if (Glib::RefPtr<Gdk::Window> w = window->get_window()) { + Gdk::Rectangle rect; + w->get_frame_extents(rect); + x = rect.get_x(); + y = rect.get_y(); + } + } + } +} + +void +SPDesktopWidget::setWindowPosition (Geom::Point p) +{ + if (window) + { + window->move (gint(round(p[Geom::X])), gint(round(p[Geom::Y]))); + } +} + +void +SPDesktopWidget::setWindowSize (gint w, gint h) +{ + if (window) + { + window->set_default_size (w, h); + window->resize (w, h); + } +} + +/** + * \note transientizing does not work on windows; when you minimize a document + * and then open it back, only its transient emerges and you cannot access + * the document window. The document window must be restored by rightclicking + * the taskbar button and pressing "Restore" + */ +void +SPDesktopWidget::setWindowTransient (void *p, int transient_policy) +{ + if (window) + { + GtkWindow *w = GTK_WINDOW(window->gobj()); + gtk_window_set_transient_for (GTK_WINDOW(p), w); + + /* + * This enables "aggressive" transientization, + * i.e. dialogs always emerging on top when you switch documents. Note + * however that this breaks "click to raise" policy of a window + * manager because the switched-to document will be raised at once + * (so that its transients also could raise) + */ + if (transient_policy == PREFS_DIALOGS_WINDOWS_AGGRESSIVE) + // without this, a transient window not always emerges on top + gtk_window_present (w); + } +} + +void +SPDesktopWidget::presentWindow() +{ + if (window) + window->present(); +} + +bool SPDesktopWidget::showInfoDialog( Glib::ustring const &message ) +{ + bool result = false; + if (window) + { + Gtk::MessageDialog dialog(*window, message, false, Gtk::MESSAGE_INFO, Gtk::BUTTONS_OK); + dialog.property_destroy_with_parent() = true; + dialog.set_name("InfoDialog"); + dialog.set_title(_("Note:")); // probably want to take this as a parameter. + dialog.run(); + } + return result; +} + +bool SPDesktopWidget::warnDialog (Glib::ustring const &text) +{ + Gtk::MessageDialog dialog (*window, text, false, Gtk::MESSAGE_WARNING, Gtk::BUTTONS_OK_CANCEL); + gint response = dialog.run(); + if (response == Gtk::RESPONSE_OK) + return true; + else + return false; +} + +void +SPDesktopWidget::iconify() +{ + GtkWindow *topw = GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(_canvas->gobj()))); + if (GTK_IS_WINDOW(topw)) { + if (desktop->is_iconified()) { + gtk_window_deiconify(topw); + } else { + gtk_window_iconify(topw); + } + } +} + +void +SPDesktopWidget::maximize() +{ + GtkWindow *topw = GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(_canvas->gobj()))); + if (GTK_IS_WINDOW(topw)) { + if (desktop->is_maximized()) { + gtk_window_unmaximize(topw); + } else { + gtk_window_maximize(topw); + } + } +} + +void +SPDesktopWidget::fullscreen() +{ + GtkWindow *topw = GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(_canvas->gobj()))); + if (GTK_IS_WINDOW(topw)) { + if (desktop->is_fullscreen()) { + gtk_window_unfullscreen(topw); + // widget layout is triggered by the resulting window_state_event + } else { + gtk_window_fullscreen(topw); + // widget layout is triggered by the resulting window_state_event + } + } +} + +/** + * Hide whatever the user does not want to see in the window. + * Also move command toolbar to top or side as required. + */ +void SPDesktopWidget::layoutWidgets() +{ + SPDesktopWidget *dtw = this; + Glib::ustring pref_root; + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + + if (desktop && desktop->is_focusMode()) { + pref_root = "/focus/"; + } else if (desktop && desktop->is_fullscreen()) { + pref_root = "/fullscreen/"; + } else { + pref_root = "/window/"; + } + + if (!prefs->getBool(pref_root + "commands/state", true)) { + gtk_widget_hide (dtw->commands_toolbox); + } else { + gtk_widget_show_all (dtw->commands_toolbox); + } + + if (!prefs->getBool(pref_root + "snaptoolbox/state", true)) { + gtk_widget_hide (dtw->snap_toolbox); + } else { + gtk_widget_show_all (dtw->snap_toolbox); + } + + if (!prefs->getBool(pref_root + "toppanel/state", true)) { + gtk_widget_hide (dtw->aux_toolbox); + } else { + // we cannot just show_all because that will show all tools' panels; + // this is a function from toolbox.cpp that shows only the current tool's panel + ToolboxFactory::showAuxToolbox(dtw->aux_toolbox); + } + + if (!prefs->getBool(pref_root + "toolbox/state", true)) { + gtk_widget_hide (dtw->tool_toolbox); + } else { + gtk_widget_show_all (dtw->tool_toolbox); + } + + if (!prefs->getBool(pref_root + "statusbar/state", true)) { + dtw->_statusbar->hide(); + } else { + dtw->_statusbar->show_all(); + } + + if (!prefs->getBool(pref_root + "panels/state", true)) { + dtw->_panels->hide(); + } else { + dtw->_panels->show_all(); + } + + _canvas_grid->ShowScrollbars(prefs->getBool(pref_root + "scrollbars/state", true)); + _canvas_grid->ShowRulers( prefs->getBool(pref_root + "rulers/state", true)); + + // Move command toolbar as required. + + // If interface_mode unset, use screen aspect ratio. Needs to be synced with "canvas-interface-mode" action. + Gdk::Rectangle monitor_geometry = Inkscape::UI::get_monitor_geometry_primary(); + double const width = monitor_geometry.get_width(); + double const height = monitor_geometry.get_height(); + bool widescreen = (height > 0 && width/height > 1.65); + widescreen = prefs->getInt(pref_root + "task/taskset", widescreen ? 2 : 0) == 2; // legacy + widescreen = prefs->getBool(pref_root + "interface_mode", widescreen); + + auto commands_toolbox_cpp = dynamic_cast<Gtk::Bin *>(Glib::wrap(commands_toolbox)); + if (commands_toolbox_cpp) { + + // Unlink command toolbar. + commands_toolbox_cpp->reference(); // So toolbox is not deleted. + auto parent = commands_toolbox_cpp->get_parent(); + parent->remove(*commands_toolbox_cpp); + + auto orientation = Gtk::ORIENTATION_HORIZONTAL; + auto orientation_c = GTK_ORIENTATION_HORIZONTAL; + // Link command toolbar back. + if (!widescreen) { + _top_toolbars->attach(*commands_toolbox_cpp, 0, 0); // Always first + gtk_box_set_child_packing(_vbox->gobj(), commands_toolbox, false, true, 0, GTK_PACK_START); // expand, fill, padding, pack_type + orientation = Gtk::ORIENTATION_HORIZONTAL; + orientation_c = GTK_ORIENTATION_HORIZONTAL; + commands_toolbox_cpp->set_hexpand(true); + } else { + _hbox->add(*commands_toolbox_cpp); + gtk_box_set_child_packing(_hbox->gobj(), commands_toolbox, false, true, 0, GTK_PACK_START); // expand, fill, padding, pack_type + orientation = Gtk::ORIENTATION_VERTICAL; + orientation_c = GTK_ORIENTATION_VERTICAL; + commands_toolbox_cpp->set_hexpand(false); + } + commands_toolbox_cpp->unreference(); + + auto box = dynamic_cast<Gtk::Box *>(commands_toolbox_cpp->get_child()); + if (box) { + box->set_orientation(orientation); + for (auto child : box->get_children()) { + if (auto toolbar = dynamic_cast<Gtk::Toolbar *>(child)) { + gtk_orientable_set_orientation(GTK_ORIENTABLE(toolbar->gobj()), orientation_c); + //toolbar->set_orientation(orientation); // Missing in C++ interface! + } + } + } + } else { + std::cerr << "SPDesktopWidget::layoutWidgets(): Wrong widget type for command toolbar!" << std::endl; + } + + // Temporary for Gtk3: Gtk toolbar resets icon sizes, so reapply them. + // TODO: remove this call in Gtk4 after Gtk::Toolbar is eliminated. + apply_ctrlbar_settings(); + + auto& snap = *Glib::wrap(snap_toolbox); + auto& aux = *Glib::wrap(aux_toolbox); + + // This ensures that the Snap toolbox is on the top and only takes the needed space. + if (_top_toolbars->get_children().size() == 3 && gtk_widget_get_visible(commands_toolbox)) { + _top_toolbars->child_property_height(snap) = 1; + _top_toolbars->child_property_width(aux) = 2; + snap.set_valign(Gtk::ALIGN_START); + } + else { + _top_toolbars->child_property_width(aux) = 1; + _top_toolbars->child_property_height(snap) = 2; + snap.set_valign(Gtk::ALIGN_CENTER); + } + + Inkscape::UI::resize_widget_children(_top_toolbars); +} + +Gtk::Toolbar * +SPDesktopWidget::get_toolbar_by_name(const Glib::ustring& name) +{ + // The name is actually attached to the GtkGrid that contains + // the toolbar, so we need to get the grid first + auto widget = sp_search_by_name_recursive(Glib::wrap(aux_toolbox), name); + auto grid = dynamic_cast<Gtk::Grid*>(widget); + + if (!grid) return nullptr; + + auto child = grid->get_child_at(0,0); + auto tb = dynamic_cast<Gtk::Toolbar*>(child); + + return tb; +} + +void +SPDesktopWidget::setToolboxFocusTo (const gchar* label) +{ + // First try looking for a named widget + auto hb = sp_search_by_name_recursive(Glib::wrap(aux_toolbox), label); + + // Fallback to looking for a named data member (deprecated) + if (!hb) { + hb = Glib::wrap(GTK_WIDGET(sp_search_by_data_recursive(aux_toolbox, (gpointer) label))); + } + + if (hb) + { + hb->grab_focus(); + } +} + +void +SPDesktopWidget::setToolboxAdjustmentValue (gchar const *id, double value) +{ + // First try looking for a named widget + auto hb = sp_search_by_name_recursive(Glib::wrap(aux_toolbox), id); + + // Fallback to looking for a named data member (deprecated) + if (!hb) { + hb = Glib::wrap(GTK_WIDGET(sp_search_by_data_recursive(aux_toolbox, (gpointer)id))); + } + + if (hb) { + auto sb = dynamic_cast<Inkscape::UI::Widget::SpinButtonToolItem *>(hb); + auto a = sb->get_adjustment(); + + if(a) a->set_value(value); + } + + else g_warning ("Could not find GtkAdjustment for %s\n", id); +} + + +bool +SPDesktopWidget::isToolboxButtonActive (const gchar* id) +{ + bool isActive = false; + auto thing = sp_search_by_name_recursive(Glib::wrap(aux_toolbox), id); + + // The toolbutton could be a few different types so try casting to + // each of them. + // TODO: This will be simpler in Gtk+ 4 when ToolItems have gone + auto toggle_button = dynamic_cast<Gtk::ToggleButton *>(thing); + auto toggle_tool_button = dynamic_cast<Gtk::ToggleToolButton *>(thing); + + if ( !thing ) { + //g_message( "Unable to locate item for {%s}", id ); + } else if (toggle_button) { + isActive = toggle_button->get_active(); + } else if (toggle_tool_button) { + isActive = toggle_tool_button->get_active(); + } else { + //g_message( "Item for {%s} is of an unsupported type", id ); + } + + return isActive; +} + +SPDesktopWidget::SPDesktopWidget(InkscapeWindow *inkscape_window, SPDocument *document) + : SPDesktopWidget(inkscape_window) +{ + set_name("SPDesktopWidget"); + + SPDesktopWidget *dtw = this; + + SPNamedView *namedview = document->getNamedView(); + + dtw->_dt2r = 1. / namedview->display_units->factor; + + dtw->_ruler_origin = Geom::Point(0,0); //namedview->gridorigin; Why was the grid origin used here? + + // This section seems backwards! + dtw->desktop = new SPDesktop(); + dtw->desktop->init (namedview, dtw->_canvas, this); + dtw->_canvas->set_desktop(desktop); + INKSCAPE.add_desktop (dtw->desktop); + + // Add the shape geometry to libavoid for autorouting connectors. + // This needs desktop set for its spacing preferences. + init_avoided_shape_geometry(dtw->desktop); + + dtw->_selected_style->setDesktop(dtw->desktop); + + /* Once desktop is set, we can update rulers */ + dtw->_canvas_grid->UpdateRulers(); + + dtw->setView(dtw->desktop); + + /* Listen on namedview modification */ + dtw->modified_connection = namedview->connectModified(sigc::mem_fun(*dtw, &SPDesktopWidget::namedviewModified)); + + _layer_selector->setDesktop(dtw->desktop); + + // We never want a page widget if there's no desktop. + _page_selector = Gtk::manage(new Inkscape::UI::Widget::PageSelector(desktop)); + _statusbar->pack_end(*_page_selector, false, false); + + ToolboxFactory::setToolboxDesktop(dtw->aux_toolbox, dtw->desktop); + + dtw->layoutWidgets(); + + dtw->_panels->setDesktop(dtw->desktop); +} + + +void +SPDesktopWidget::update_rulers() +{ + _canvas_grid->UpdateRulers(); +} + + +void SPDesktopWidget::namedviewModified(SPObject *obj, guint flags) +{ + SPNamedView *nv=SP_NAMEDVIEW(obj); + + if (flags & SP_OBJECT_MODIFIED_FLAG) { + _dt2r = 1. / nv->display_units->factor; + _ruler_origin = Geom::Point(0,0); //nv->gridorigin; Why was the grid origin used here? + + _canvas_grid->GetVRuler()->set_unit(nv->getDisplayUnit()); + _canvas_grid->GetHRuler()->set_unit(nv->getDisplayUnit()); + _canvas_grid->GetVRuler()->set_tooltip_text(gettext(nv->display_units->name_plural.c_str())); + _canvas_grid->GetHRuler()->set_tooltip_text(gettext(nv->display_units->name_plural.c_str())); + _canvas_grid->UpdateRulers(); + + /* This loops through all the grandchildren of aux toolbox, + * and for each that it finds, it performs an sp_search_by_name_recursive(), + * looking for widgets named "unit-tracker" (this is used by + * all toolboxes to refer to the unit selector). The default document units + * is then selected within these unit selectors. + * + * This should solve: https://bugs.launchpad.net/inkscape/+bug/362995 + */ + if (GTK_IS_CONTAINER(aux_toolbox)) { + std::vector<Gtk::Widget*> ch = Glib::wrap(GTK_CONTAINER(aux_toolbox))->get_children(); + for (auto i:ch) { + if (auto container = dynamic_cast<Gtk::Container *>(i)) { + std::vector<Gtk::Widget*> grch = container->get_children(); + for (auto j:grch) { + + if (!GTK_IS_WIDGET(j->gobj())) // wasn't a widget + continue; + + // Don't apply to text toolbar. We want to be able to + // use different units for text. (Bug 1562217) + const Glib::ustring name = j->get_name(); + if ( name == "TextToolbar" || name == "MeasureToolbar" || name == "CalligraphicToolbar" ) + continue; + + auto tracker = dynamic_cast<Inkscape::UI::Widget::ComboToolItem*>(sp_search_by_name_recursive(j, "unit-tracker")); + + if (tracker) { // it's null when inkscape is first opened + if (auto ptr = static_cast<UnitTracker*>(tracker->get_data(Glib::Quark("unit-tracker")))) { + ptr->setActiveUnit(nv->display_units); + } + } + } // grandchildren + } // if child is a container + } // children + } // if aux_toolbox is a container + } +} + +void +SPDesktopWidget::on_adjustment_value_changed() +{ + if (update) + return; + + update = true; + + // Do not call canvas->scrollTo directly... messes up 'offset'. + desktop->scroll_absolute( Geom::Point(_canvas_grid->GetHAdj()->get_value(), + _canvas_grid->GetVAdj()->get_value()), false); + + update = false; +} + +/* we make the desktop window with focus active, signal is connected in interface.c */ +bool SPDesktopWidget::onFocusInEvent(GdkEventFocus*) +{ + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + if (prefs->getBool("/options/bitmapautoreload/value", true)) { + std::vector<SPObject *> imageList = (desktop->doc())->getResourceList("image"); + for (auto it : imageList) { + SPImage* image = SP_IMAGE(it); + image->refresh_if_outdated(); + } + } + + INKSCAPE.activate_desktop (desktop); + + return false; +} + +// ------------------------ Zoom ------------------------ +static gdouble +sp_dtw_zoom_value_to_display (gdouble value) +{ + return floor (10 * (pow (2, value) * 100.0 + 0.05)) / 10; +} + +static gdouble +sp_dtw_zoom_display_to_value (gdouble value) +{ + return log (value / 100.0) / log (2); +} + +int +SPDesktopWidget::zoom_input(double *new_val) +{ + double new_typed = g_strtod (_zoom_status->get_text().c_str(), nullptr); + *new_val = sp_dtw_zoom_display_to_value (new_typed); + return true; +} + +bool +SPDesktopWidget::zoom_output() +{ + gchar b[64]; + double val = sp_dtw_zoom_value_to_display (_zoom_status->get_value()); + if (val < 10) { + g_snprintf (b, 64, "%4.1f%%", val); + } else { + g_snprintf (b, 64, "%4.0f%%", val); + } + _zoom_status->set_text(b); + return true; +} + +void +SPDesktopWidget::zoom_value_changed() +{ + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + double const zoom_factor = pow (2, _zoom_status->get_value()); + + // Zoom around center of window + Geom::Rect const d_canvas = _canvas->get_area_world(); + Geom::Point midpoint = desktop->w2d(d_canvas.midpoint()); + + _zoom_status_value_changed_connection.block(); + if(prefs->getDouble("/options/zoomcorrection/shown", true)) { + desktop->zoom_realworld(midpoint, zoom_factor); + } else { + desktop->zoom_absolute(midpoint, zoom_factor); + } + _zoom_status_value_changed_connection.unblock(); + _zoom_status->defocus(); +} + +void +SPDesktopWidget::zoom_menu_handler(double factor) +{ + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + if(prefs->getDouble("/options/zoomcorrection/shown", true)) { + desktop->zoom_realworld(desktop->current_center(), factor); + } else { + desktop->zoom_absolute(desktop->current_center(), factor, false); + } +} + + + +void +SPDesktopWidget::zoom_populate_popup(Gtk::Menu *menu) +{ + for ( auto iter : menu->get_children()) { + menu->remove(*iter); + } + + auto item_1000 = Gtk::manage(new Gtk::MenuItem("1000%")); + auto item_500 = Gtk::manage(new Gtk::MenuItem("500%")); + auto item_200 = Gtk::manage(new Gtk::MenuItem("200%")); + auto item_100 = Gtk::manage(new Gtk::MenuItem("100%")); + auto item_50 = Gtk::manage(new Gtk::MenuItem( "50%")); + auto item_25 = Gtk::manage(new Gtk::MenuItem( "25%")); + auto item_10 = Gtk::manage(new Gtk::MenuItem( "10%")); + + item_1000->signal_activate().connect(sigc::bind(sigc::mem_fun(this, &SPDesktopWidget::zoom_menu_handler), 10.00)); + item_500->signal_activate().connect( sigc::bind(sigc::mem_fun(this, &SPDesktopWidget::zoom_menu_handler), 5.00)); + item_200->signal_activate().connect( sigc::bind(sigc::mem_fun(this, &SPDesktopWidget::zoom_menu_handler), 2.00)); + item_100->signal_activate().connect( sigc::bind(sigc::mem_fun(this, &SPDesktopWidget::zoom_menu_handler), 1.00)); + item_50->signal_activate().connect( sigc::bind(sigc::mem_fun(this, &SPDesktopWidget::zoom_menu_handler), 0.50)); + item_25->signal_activate().connect( sigc::bind(sigc::mem_fun(this, &SPDesktopWidget::zoom_menu_handler), 0.25)); + item_10->signal_activate().connect( sigc::bind(sigc::mem_fun(this, &SPDesktopWidget::zoom_menu_handler), 0.10)); + + menu->append(*item_1000); + menu->append(*item_500); + menu->append(*item_200); + menu->append(*item_100); + menu->append(*item_50); + menu->append(*item_25); + menu->append(*item_10); + + auto sep = Gtk::manage(new Gtk::SeparatorMenuItem()); + menu->append(*sep); + + auto item_page = Gtk::manage(new Gtk::MenuItem(_("Page"))); + item_page->signal_activate().connect([=]() { desktop->getDocument()->getPageManager().zoomToSelectedPage(desktop); }); + menu->append(*item_page); + + auto item_drawing = Gtk::manage(new Gtk::MenuItem(_("Drawing"))); + item_drawing->signal_activate().connect(sigc::mem_fun(desktop, &SPDesktop::zoom_drawing)); + menu->append(*item_drawing); + + auto item_selection = Gtk::manage(new Gtk::MenuItem(_("Selection"))); + item_selection->signal_activate().connect(sigc::mem_fun(desktop, &SPDesktop::zoom_selection)); + menu->append(*item_selection); + + auto item_center_page = Gtk::manage(new Gtk::MenuItem(_("Centre Page"))); + item_center_page->signal_activate().connect([=]() { desktop->getDocument()->getPageManager().centerToSelectedPage(desktop); }); + menu->append(*item_center_page); + + menu->show_all(); +} + + +void +SPDesktopWidget::sticky_zoom_toggled() +{ + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + prefs->setBool("/options/stickyzoom/value", _canvas_grid->GetStickyZoom()->get_active()); +} + + +void +SPDesktopWidget::update_zoom() +{ + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + // It's very important that the value used in set_value is the same as the one + // set as it otherwise creates an infinate loop between the spin button and update_zoom + double correction = 1.0; + if(prefs->getDouble("/options/zoomcorrection/shown", true)) { + correction = prefs->getDouble("/options/zoomcorrection/value", 1.0); + } + _zoom_status_value_changed_connection.block(); + _zoom_status->set_value(log(desktop->current_zoom() / correction) / log(2)); + _zoom_status->queue_draw(); + _zoom_status_value_changed_connection.unblock(); +} + + +// ---------------------- Rotation ------------------------ + +bool +SPDesktopWidget::rotation_output() +{ + gchar b[64]; + double val = _rotation_status->get_value(); + + if (val < -180) val += 360; + if (val > 180) val -= 360; + + g_snprintf (b, 64, "%7.2f°", val); + + _rotation_status->set_text(b); + return true; +} + +void +SPDesktopWidget::rotation_value_changed() +{ + double const rotate_factor = M_PI / 180.0 * _rotation_status->get_value(); + // std::cout << "SPDesktopWidget::rotation_value_changed: " + // << _rotation_status->get_value() + // << " (" << rotate_factor << ")" <<std::endl; + + // Rotate around center of window + Geom::Rect const d_canvas = _canvas->get_area_world(); + _rotation_status_value_changed_connection.block(); + Geom::Point midpoint = desktop->w2d(d_canvas.midpoint()); + desktop->rotate_absolute_center_point (midpoint, rotate_factor); + _rotation_status_value_changed_connection.unblock(); + + _rotation_status->defocus(); +} + +void +SPDesktopWidget::rotation_populate_popup(Gtk::Menu *menu) +{ + for ( auto iter : menu->get_children()) { + menu->remove(*iter); + } + + auto item_m135 = Gtk::manage(new Gtk::MenuItem("-135°")); + auto item_m90 = Gtk::manage(new Gtk::MenuItem( "-90°")); + auto item_m45 = Gtk::manage(new Gtk::MenuItem( "-45°")); + auto item_0 = Gtk::manage(new Gtk::MenuItem( "0°")); + auto item_p45 = Gtk::manage(new Gtk::MenuItem( "45°")); + auto item_p90 = Gtk::manage(new Gtk::MenuItem( "90°")); + auto item_p135 = Gtk::manage(new Gtk::MenuItem( "135°")); + auto item_p180 = Gtk::manage(new Gtk::MenuItem( "180°")); + + item_m135->signal_activate().connect(sigc::bind(sigc::mem_fun(_rotation_status, &Gtk::SpinButton::set_value), -135)); + item_m90->signal_activate().connect( sigc::bind(sigc::mem_fun(_rotation_status, &Gtk::SpinButton::set_value), -90)); + item_m45->signal_activate().connect( sigc::bind(sigc::mem_fun(_rotation_status, &Gtk::SpinButton::set_value), -45)); + item_0->signal_activate().connect( sigc::bind(sigc::mem_fun(_rotation_status, &Gtk::SpinButton::set_value), 0)); + item_p45->signal_activate().connect( sigc::bind(sigc::mem_fun(_rotation_status, &Gtk::SpinButton::set_value), 45)); + item_p90->signal_activate().connect( sigc::bind(sigc::mem_fun(_rotation_status, &Gtk::SpinButton::set_value), 90)); + item_p135->signal_activate().connect(sigc::bind(sigc::mem_fun(_rotation_status, &Gtk::SpinButton::set_value), 135)); + item_p180->signal_activate().connect(sigc::bind(sigc::mem_fun(_rotation_status, &Gtk::SpinButton::set_value), 180)); + + menu->append(*item_m135); + menu->append(*item_m90); + menu->append(*item_m45); + menu->append(*item_0); + menu->append(*item_p45); + menu->append(*item_p90); + menu->append(*item_p135); + menu->append(*item_p180); + + menu->show_all(); +} + + +void +SPDesktopWidget::update_rotation() +{ + _rotation_status_value_changed_connection.block(); + _rotation_status->set_value(desktop->current_rotation() / M_PI * 180.0); + _rotation_status->queue_draw(); + _rotation_status_value_changed_connection.unblock(); + +} + + +// --------------- Rulers/Scrollbars/Etc. ----------------- +void +SPDesktopWidget::toggle_command_palette() { + // TODO: Turn into action and remove this function. + _canvas_grid->ToggleCommandPalette(); +} + +void +SPDesktopWidget::toggle_rulers() +{ + // TODO: Turn into action and remove this function. + _canvas_grid->ToggleRulers(); +} + +void +SPDesktopWidget::toggle_scrollbars() +{ + // TODO: Turn into action and remove this function. + _canvas_grid->ToggleScrollbars(); +} + +bool +SPDesktopWidget::get_color_prof_adj_enabled() const +{ + auto _cms_adjust = _canvas_grid->GetCmsAdjust(); + return _cms_adjust->get_sensitive() && _cms_adjust->get_active(); +} + +void +SPDesktopWidget::toggle_color_prof_adj() +{ + auto _cms_adjust = _canvas_grid->GetCmsAdjust(); + if (_cms_adjust->get_sensitive()) { + bool active = _cms_adjust->get_active(); + _cms_adjust->set_active(!active); + } +} + +static void +set_adjustment (Glib::RefPtr<Gtk::Adjustment> &adj, double l, double u, double ps, double si, double pi) +{ + if ((l != adj->get_lower()) || + (u != adj->get_upper()) || + (ps != adj->get_page_size()) || + (si != adj->get_step_increment()) || + (pi != adj->get_page_increment())) { + adj->set_lower(l); + adj->set_upper(u); + adj->set_page_size(ps); + adj->set_step_increment(si); + adj->set_page_increment(pi); + } +} + +void +SPDesktopWidget::update_scrollbars(double scale) +{ + if (update) return; + update = true; + + /* The desktop region we always show unconditionally */ + SPDocument *doc = desktop->doc(); + + auto deskarea = doc->preferredBounds(); + deskarea->expandBy(doc->getDimensions()); // Double size + + /* The total size of pages should be added unconditionally */ + deskarea->unionWith(doc->getPageManager().getDesktopRect()); + + if (Inkscape::Preferences::get()->getInt("/tools/bounding_box") == 0) { + deskarea->unionWith(doc->getRoot()->desktopVisualBounds()); + } else { + deskarea->unionWith(doc->getRoot()->desktopGeometricBounds()); + } + + /* Canvas region we always show unconditionally */ + double const y_dir = desktop->yaxisdir(); + Geom::Rect carea( Geom::Point(deskarea->left() * scale - 64, (deskarea->top() * scale + 64) * y_dir), + Geom::Point(deskarea->right() * scale + 64, (deskarea->bottom() * scale - 64) * y_dir) ); + + Geom::Rect viewbox = _canvas->get_area_world(); + + /* Viewbox is always included into scrollable region */ + carea = Geom::unify(carea, viewbox); + + auto _hadj = _canvas_grid->GetHAdj(); + auto _vadj = _canvas_grid->GetVAdj(); + set_adjustment(_hadj, carea.min()[Geom::X], carea.max()[Geom::X], + viewbox.dimensions()[Geom::X], + 0.1 * viewbox.dimensions()[Geom::X], + viewbox.dimensions()[Geom::X]); + _hadj->set_value(viewbox.min()[Geom::X]); + + set_adjustment(_vadj, carea.min()[Geom::Y], carea.max()[Geom::Y], + viewbox.dimensions()[Geom::Y], + 0.1 * viewbox.dimensions()[Geom::Y], + viewbox.dimensions()[Geom::Y]); + _vadj->set_value(viewbox.min()[Geom::Y]); + + update = false; +} + +gint +SPDesktopWidget::ruler_event(GtkWidget *widget, GdkEvent *event, SPDesktopWidget *dtw, bool horiz) +{ + switch (event->type) { + case GDK_BUTTON_PRESS: + dtw->on_ruler_box_button_press_event(&event->button, Glib::wrap(widget), horiz); + break; + case GDK_MOTION_NOTIFY: + dtw->on_ruler_box_motion_notify_event(&event->motion, Glib::wrap(widget), horiz); + break; + case GDK_BUTTON_RELEASE: + dtw->on_ruler_box_button_release_event(&event->button, Glib::wrap(widget), horiz); + break; + default: + break; + } + + return FALSE; +} + +bool +SPDesktopWidget::on_ruler_box_motion_notify_event(GdkEventMotion *event, Gtk::Widget *widget, bool horiz) +{ + if (horiz) { + sp_event_context_snap_delay_handler(desktop->event_context, (gpointer) widget->gobj(), (gpointer) this, event, Inkscape::UI::Tools::DelayedSnapEvent::GUIDE_HRULER); + } + else { + sp_event_context_snap_delay_handler(desktop->event_context, (gpointer) widget->gobj(), (gpointer) this, event, Inkscape::UI::Tools::DelayedSnapEvent::GUIDE_VRULER); + } + + int wx, wy; + + GdkWindow *window = gtk_widget_get_window(GTK_WIDGET(_canvas->gobj())); + + gint width, height; + + gdk_window_get_device_position(window, event->device, &wx, &wy, nullptr); + gdk_window_get_geometry(window, nullptr /*x*/, nullptr /*y*/, &width, &height); + + Geom::Point const event_win(wx, wy); + + if (_ruler_clicked) { + Geom::Point event_w(_canvas->canvas_to_world(event_win)); + Geom::Point event_dt(desktop->w2d(event_w)); + + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + gint tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100); + if ( ( abs( (gint) event->x - _xp ) < tolerance ) + && ( abs( (gint) event->y - _yp ) < tolerance ) ) { + return false; + } + + _ruler_dragged = true; + + // explicitly show guidelines; if I draw a guide, I want them on + if ((horiz ? wy : wx) >= 0) { + desktop->namedview->setShowGuides(true); + } + + Geom::Point normal = _normal; + if (!(event->state & GDK_SHIFT_MASK)) { + ruler_snap_new_guide(desktop, event_dt, normal); + } + _active_guide->set_normal(normal); + _active_guide->set_origin(event_dt); + + desktop->set_coordinate_status(event_dt); + } + + return false; +} + +// End guide creation or toggle guides on/off. +bool +SPDesktopWidget::on_ruler_box_button_release_event(GdkEventButton *event, Gtk::Widget *widget, bool horiz) +{ + int wx, wy; + + GdkWindow *window = gtk_widget_get_window(GTK_WIDGET(_canvas->gobj())); + + gint width, height; + + gdk_window_get_device_position(window, event->device, &wx, &wy, nullptr); + gdk_window_get_geometry(window, nullptr /*x*/, nullptr /*y*/, &width, &height); + + Geom::Point const event_win(wx, wy); + + if (_ruler_clicked && event->button == 1) { + desktop->event_context->discard_delayed_snap_event(); + + auto seat = gdk_device_get_seat(event->device); + gdk_seat_ungrab(seat); + + Geom::Point const event_w(_canvas->canvas_to_world(event_win)); + Geom::Point event_dt(desktop->w2d(event_w)); + + Geom::Point normal = _normal; + if (!(event->state & GDK_SHIFT_MASK)) { + ruler_snap_new_guide(desktop, event_dt, normal); + } + + delete _active_guide; + _active_guide = nullptr; + if ((horiz ? wy : wx) >= 0) { + Inkscape::XML::Document *xml_doc = desktop->doc()->getReprDoc(); + Inkscape::XML::Node *repr = xml_doc->createElement("sodipodi:guide"); + + // If root viewBox set, interpret guides in terms of viewBox (90/96) + double newx = event_dt.x(); + double newy = event_dt.y(); + + // <sodipodi:guide> stores inverted y-axis coordinates + if (desktop->is_yaxisdown()) { + newy = desktop->doc()->getHeight().value("px") - newy; + normal[Geom::Y] *= -1.0; + } + + SPRoot *root = desktop->doc()->getRoot(); + if( root->viewBox_set ) { + newx = newx * root->viewBox.width() / root->width.computed; + newy = newy * root->viewBox.height() / root->height.computed; + } + repr->setAttributePoint("position", Geom::Point( newx, newy )); + repr->setAttributePoint("orientation", normal); + desktop->namedview->appendChild(repr); + Inkscape::GC::release(repr); + DocumentUndo::done(desktop->getDocument(), _("Create guide"), ""); + } + desktop->set_coordinate_status(event_dt); + + if (!_ruler_dragged) { + // Ruler click (without drag) toggle the guide visibility on and off + desktop->namedview->toggleShowGuides(); + } + + _ruler_clicked = false; + _ruler_dragged = false; + } + + return false; +} + +// Start guide creation by dragging from ruler. +bool +SPDesktopWidget::on_ruler_box_button_press_event(GdkEventButton *event, Gtk::Widget *widget, bool horiz) +{ + if (_ruler_clicked) // event triggered on a double click: do no process the click + return false; + + int wx, wy; + + GdkWindow *window = gtk_widget_get_window(GTK_WIDGET(_canvas->gobj())); + + gint width, height; + + gdk_window_get_device_position(window, event->device, &wx, &wy, nullptr); + gdk_window_get_geometry(window, nullptr /*x*/, nullptr /*y*/, &width, &height); + + Geom::Point const event_win(wx, wy); + + if (event->button == 1) { + _ruler_clicked = true; + _ruler_dragged = false; + // save click origin + _xp = (gint) event->x; + _yp = (gint) event->y; + + Geom::Point const event_w(_canvas->canvas_to_world(event_win)); + Geom::Point const event_dt(desktop->w2d(event_w)); + + // calculate the normal of the guidelines when dragged from the edges of rulers. + auto const y_dir = desktop->yaxisdir(); + Geom::Point normal_bl_to_tr(1., y_dir); //bottomleft to topright + Geom::Point normal_tr_to_bl(-1., y_dir); //topright to bottomleft + normal_bl_to_tr.normalize(); + normal_tr_to_bl.normalize(); + Inkscape::CanvasGrid * grid = sp_namedview_get_first_enabled_grid(desktop->namedview); + if (grid){ + if (grid->getGridType() == Inkscape::GRID_AXONOMETRIC ) { + Inkscape::CanvasAxonomGrid *axonomgrid = dynamic_cast<Inkscape::CanvasAxonomGrid *>(grid); + if (event->state & GDK_CONTROL_MASK) { + // guidelines normal to gridlines + normal_bl_to_tr = Geom::Point::polar(-axonomgrid->angle_rad[0], 1.0); + normal_tr_to_bl = Geom::Point::polar(axonomgrid->angle_rad[2], 1.0); + } else { + normal_bl_to_tr = rot90(Geom::Point::polar(axonomgrid->angle_rad[2], 1.0)); + normal_tr_to_bl = rot90(Geom::Point::polar(-axonomgrid->angle_rad[0], 1.0)); + } + } + } + if (horiz) { + if (wx < 50) { + _normal = normal_bl_to_tr; + } else if (wx > width - 50) { + _normal = normal_tr_to_bl; + } else { + _normal = Geom::Point(0.,1.); + } + } else { + if (wy < 50) { + _normal = normal_bl_to_tr; + } else if (wy > height - 50) { + _normal = normal_tr_to_bl; + } else { + _normal = Geom::Point(1.,0.); + } + } + + _active_guide = new Inkscape::CanvasItemGuideLine(desktop->getCanvasGuides(), Glib::ustring(), event_dt, _normal); + _active_guide->set_stroke(desktop->namedview->guidehicolor); + + // Ruler grabs all events until button release. + auto window = widget->get_window()->gobj(); + auto seat = gdk_device_get_seat(event->device); + gdk_seat_grab(seat, + window, + GDK_SEAT_CAPABILITY_ALL_POINTING, + FALSE, + nullptr, + (GdkEvent*)event, + nullptr, + nullptr); + } + + return false; +} + +void +SPDesktopWidget::ruler_snap_new_guide(SPDesktop *desktop, Geom::Point &event_dt, Geom::Point &normal) +{ + desktop->getCanvas()->grab_focus(); + SnapManager &m = desktop->namedview->snap_manager; + m.setup(desktop); + // We're dragging a brand new guide, just pulled of the rulers seconds ago. When snapping to a + // path this guide will change it slope to become either tangential or perpendicular to that path. It's + // therefore not useful to try tangential or perpendicular snapping, so this will be disabled temporarily + bool pref_perp = m.snapprefs.isTargetSnappable(Inkscape::SNAPTARGET_PATH_PERPENDICULAR); + bool pref_tang = m.snapprefs.isTargetSnappable(Inkscape::SNAPTARGET_PATH_TANGENTIAL); + m.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_PATH_PERPENDICULAR, false); + m.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_PATH_TANGENTIAL, false); + // 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 + Geom::Point normal_orig = normal; + m.guideFreeSnap(event_dt, normal, false, false); + // After snapping, both event_dt and normal have been modified accordingly; we'll take the normal (of the + // curve we snapped to) to set the normal the guide. And rotate it by 90 deg. if needed + if (pref_perp) { // Perpendicular snapping to paths is requested by the user, so let's do that + if (normal != normal_orig) { + normal = Geom::rot90(normal); + } + } + if (!(pref_tang || pref_perp)) { // if we don't want to snap either perpendicularly or tangentially, then + normal = normal_orig; // we must restore the normal to it's original state + } + // Restore the preferences + m.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_PATH_PERPENDICULAR, pref_perp); + m.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_PATH_TANGENTIAL, pref_tang); + m.unSetup(); +} + +/* + 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 : |