1 files changed, 417 insertions, 0 deletions
diff --git a/src/ui/toolbar/lpe-toolbar.cpp b/src/ui/toolbar/lpe-toolbar.cpp
new file mode 100644
index 0000000..06327ff
--- /dev/null
+++ b/src/ui/toolbar/lpe-toolbar.cpp
@@ -0,0 +1,417 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/**
+ * @file
+ * LPE aux toolbar
+ */
+/* Authors:
+ *   MenTaLguY <mental@rydia.net>
+ *   Lauris Kaplinski <lauris@kaplinski.com>
+ *   bulia byak <buliabyak@users.sf.net>
+ *   Frank Felfe <innerspace@iname.com>
+ *   John Cliff <simarilius@yahoo.com>
+ *   David Turner <novalis@gnu.org>
+ *   Josh Andler <scislac@scislac.com>
+ *   Jon A. Cruz <jon@joncruz.org>
+ *   Maximilian Albert <maximilian.albert@gmail.com>
+ *   Tavmjong Bah <tavmjong@free.fr>
+ *   Abhishek Sharma
+ *   Kris De Gussem <Kris.DeGussem@gmail.com>
+ *
+ * Copyright (C) 2004 David Turner
+ * Copyright (C) 2003 MenTaLguY
+ * Copyright (C) 1999-2011 authors
+ * Copyright (C) 2001-2002 Ximian, Inc.
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include "lpe-toolbar.h"
+
+#include <gtkmm/radiotoolbutton.h>
+#include <gtkmm/separatortoolitem.h>
+
+#include "live_effects/lpe-line_segment.h"
+
+#include "ui/dialog/dialog-container.h"
+#include "ui/icon-names.h"
+#include "ui/tools/lpe-tool.h"
+#include "ui/widget/combo-tool-item.h"
+#include "ui/widget/unit-tracker.h"
+
+using Inkscape::UI::Widget::UnitTracker;
+using Inkscape::Util::Unit;
+using Inkscape::Util::Quantity;
+using Inkscape::DocumentUndo;
+using Inkscape::UI::Tools::ToolBase;
+using Inkscape::UI::Tools::LpeTool;
+
+namespace Inkscape {
+namespace UI {
+namespace Toolbar {
+LPEToolbar::LPEToolbar(SPDesktop *desktop)
+    : Toolbar(desktop),
+      _tracker(new UnitTracker(Util::UNIT_TYPE_LINEAR)),
+      _freeze(false),
+      _currentlpe(nullptr),
+      _currentlpeitem(nullptr)
+{
+    _tracker->setActiveUnit(_desktop->getNamedView()->display_units);
+
+    auto unit = _tracker->getActiveUnit();
+    g_return_if_fail(unit != nullptr);
+
+    auto prefs = Inkscape::Preferences::get();
+    prefs->setString("/tools/lpetool/unit", unit->abbr);
+
+    /* Automatically create a list of LPEs that get added to the toolbar **/
+    {
+        Gtk::RadioToolButton::Group mode_group;
+
+        // The first toggle button represents the state that no subtool is active.
+        auto inactive_mode_btn = Gtk::manage(new Gtk::RadioToolButton(mode_group, _("All inactive")));
+        inactive_mode_btn->set_tooltip_text(_("No geometric tool is active"));
+        inactive_mode_btn->set_icon_name(INKSCAPE_ICON("draw-geometry-inactive"));
+        _mode_buttons.push_back(inactive_mode_btn);
+
+        Inkscape::LivePathEffect::EffectType type;
+        for (int i = 1; i < num_subtools; ++i) { // i == 0 ia INVALIDE_LPE.
+
+            type =  lpesubtools[i].type;
+
+            auto btn = Gtk::manage(new Gtk::RadioToolButton(mode_group, Inkscape::LivePathEffect::LPETypeConverter.get_label(type)));
+            btn->set_tooltip_text(_(Inkscape::LivePathEffect::LPETypeConverter.get_label(type).c_str()));
+            btn->set_icon_name(lpesubtools[i].icon_name);
+            _mode_buttons.push_back(btn);
+        }
+
+        int btn_idx = 0;
+        for (auto btn : _mode_buttons) {
+            btn->set_sensitive(true);
+            add(*btn);
+            btn->signal_clicked().connect(sigc::bind(sigc::mem_fun(*this, &LPEToolbar::mode_changed), btn_idx++));
+        }
+
+        int mode = prefs->getInt("/tools/lpetool/mode", 0);
+        _mode_buttons[mode]->set_active();
+    }
+
+    add(* Gtk::manage(new Gtk::SeparatorToolItem()));
+
+    /* Show limiting bounding box */
+    {
+        _show_bbox_item = add_toggle_button(_("Show limiting bounding box"),
+                                            _("Show bounding box (used to cut infinite lines)"));
+        _show_bbox_item->set_icon_name(INKSCAPE_ICON("show-bounding-box"));
+        _show_bbox_item->signal_toggled().connect(sigc::mem_fun(*this, &LPEToolbar::toggle_show_bbox));
+        _show_bbox_item->set_active(prefs->getBool( "/tools/lpetool/show_bbox", true ));
+    }
+
+    /* Set limiting bounding box to bbox of current selection */
+    {
+        // TODO: Shouldn't this just be a button (not toggle button)?
+        _bbox_from_selection_item = add_toggle_button(_("Get limiting bounding box from selection"),
+                                                      _("Set limiting bounding box (used to cut infinite lines) to the bounding box of current selection"));
+        _bbox_from_selection_item->set_icon_name(INKSCAPE_ICON("draw-geometry-set-bounding-box"));
+        _bbox_from_selection_item->signal_toggled().connect(sigc::mem_fun(*this, &LPEToolbar::toggle_set_bbox));
+        _bbox_from_selection_item->set_active(false);
+    }
+
+    add(* Gtk::manage(new Gtk::SeparatorToolItem()));
+
+    /* Combo box to choose line segment type */
+    {
+        UI::Widget::ComboToolItemColumns columns;
+        Glib::RefPtr<Gtk::ListStore> store = Gtk::ListStore::create(columns);
+
+        std::vector<gchar*> line_segment_dropdown_items_list = {
+            _("Closed"),
+            _("Open start"),
+            _("Open end"),
+            _("Open both")
+        };
+
+        for (auto item: line_segment_dropdown_items_list) {
+            Gtk::TreeModel::Row row = *(store->append());
+            row[columns.col_label    ] = item;
+            row[columns.col_sensitive] = true;
+        }
+
+        _line_segment_combo = Gtk::manage(UI::Widget::ComboToolItem::create(_("Line Type"), _("Choose a line segment type"), "Not Used", store));
+        _line_segment_combo->use_group_label(false);
+
+        _line_segment_combo->set_active(0);
+
+        _line_segment_combo->signal_changed().connect(sigc::mem_fun(*this, &LPEToolbar::change_line_segment_type));
+        add(*_line_segment_combo);
+    }
+
+    add(* Gtk::manage(new Gtk::SeparatorToolItem()));
+
+    /* Display measuring info for selected items */
+    {
+        _measuring_item = add_toggle_button(_("Display measuring info"),
+                                            _("Display measuring info for selected items"));
+        _measuring_item->set_icon_name(INKSCAPE_ICON("draw-geometry-show-measuring-info"));
+        _measuring_item->signal_toggled().connect(sigc::mem_fun(*this, &LPEToolbar::toggle_show_measuring_info));
+        _measuring_item->set_active( prefs->getBool( "/tools/lpetool/show_measuring_info", true ) );
+    }
+
+    // Add the units menu
+    {
+        _units_item = _tracker->create_tool_item(_("Units"), ("") );
+        add(*_units_item);
+        _units_item->signal_changed_after().connect(sigc::mem_fun(*this, &LPEToolbar::unit_changed));
+        _units_item->set_sensitive( prefs->getBool("/tools/lpetool/show_measuring_info", true));
+    }
+
+    add(* Gtk::manage(new Gtk::SeparatorToolItem()));
+
+    /* Open LPE dialog (to adapt parameters numerically) */
+    {
+        // TODO: Shouldn't this be a regular Gtk::ToolButton (not toggle)?
+        _open_lpe_dialog_item = add_toggle_button(_("Open LPE dialog"),
+                                                  _("Open LPE dialog (to adapt parameters numerically)"));
+        _open_lpe_dialog_item->set_icon_name(INKSCAPE_ICON("dialog-geometry"));
+        _open_lpe_dialog_item->signal_toggled().connect(sigc::mem_fun(*this, &LPEToolbar::open_lpe_dialog));
+        _open_lpe_dialog_item->set_active(false);
+    }
+
+    desktop->connectEventContextChanged(sigc::mem_fun(*this, &LPEToolbar::watch_ec));
+
+    show_all();
+}
+
+void
+LPEToolbar::set_mode(int mode)
+{
+    _mode_buttons[mode]->set_active();
+}
+
+GtkWidget *
+LPEToolbar::create(SPDesktop *desktop)
+{
+    auto toolbar = new LPEToolbar(desktop);
+    return GTK_WIDGET(toolbar->gobj());
+}
+
+// this is called when the mode is changed via the toolbar (i.e., one of the subtool buttons is pressed)
+void
+LPEToolbar::mode_changed(int mode)
+{
+    using namespace Inkscape::LivePathEffect;
+
+    ToolBase *ec = _desktop->event_context;
+    if (!SP_IS_LPETOOL_CONTEXT(ec)) {
+        return;
+    }
+
+    // only take action if run by the attr_changed listener
+    if (!_freeze) {
+        // in turn, prevent listener from responding
+        _freeze = true;
+
+        EffectType type = lpesubtools[mode].type;
+
+        LpeTool *lc = SP_LPETOOL_CONTEXT(_desktop->event_context);
+        bool success = lpetool_try_construction(lc, type);
+        if (success) {
+            // since the construction was already performed, we set the state back to inactive
+            _mode_buttons[0]->set_active();
+            mode = 0;
+        } else {
+            // switch to the chosen subtool
+            SP_LPETOOL_CONTEXT(_desktop->event_context)->mode = type;
+        }
+
+        if (DocumentUndo::getUndoSensitive(_desktop->getDocument())) {
+            Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+            prefs->setInt( "/tools/lpetool/mode", mode );
+        }
+
+        _freeze = false;
+    }
+}
+
+void
+LPEToolbar::toggle_show_bbox() {
+    auto prefs = Inkscape::Preferences::get();
+
+    bool show = _show_bbox_item->get_active();
+    prefs->setBool("/tools/lpetool/show_bbox",  show);
+
+    LpeTool *lc = dynamic_cast<LpeTool *>(_desktop->event_context);
+    if (lc) {
+        lpetool_context_reset_limiting_bbox(lc);
+    }
+}
+
+void
+LPEToolbar::toggle_set_bbox()
+{
+    auto selection = _desktop->getSelection();
+
+    auto bbox = selection->visualBounds();
+
+    if (bbox) {
+        Geom::Point A(bbox->min());
+        Geom::Point B(bbox->max());
+
+        A *= _desktop->doc2dt();
+        B *= _desktop->doc2dt();
+
+        // TODO: should we provide a way to store points in prefs?
+        auto prefs = Inkscape::Preferences::get();
+        prefs->setDouble("/tools/lpetool/bbox_upperleftx", A[Geom::X]);
+        prefs->setDouble("/tools/lpetool/bbox_upperlefty", A[Geom::Y]);
+        prefs->setDouble("/tools/lpetool/bbox_lowerrightx", B[Geom::X]);
+        prefs->setDouble("/tools/lpetool/bbox_lowerrighty", B[Geom::Y]);
+
+        lpetool_context_reset_limiting_bbox(SP_LPETOOL_CONTEXT(_desktop->event_context));
+    }
+
+    _bbox_from_selection_item->set_active(false);
+}
+
+void
+LPEToolbar::change_line_segment_type(int mode)
+{
+    using namespace Inkscape::LivePathEffect;
+
+    // quit if run by the attr_changed listener
+    if (_freeze) {
+        return;
+    }
+
+    // in turn, prevent listener from responding
+    _freeze = true;
+    auto line_seg = dynamic_cast<LPELineSegment *>(_currentlpe);
+
+    if (_currentlpeitem && line_seg) {
+        line_seg->end_type.param_set_value(static_cast<Inkscape::LivePathEffect::EndType>(mode));
+        sp_lpe_item_update_patheffect(_currentlpeitem, true, true);
+    }
+
+    _freeze = false;
+}
+
+void
+LPEToolbar::toggle_show_measuring_info()
+{
+    LpeTool *lc = dynamic_cast<LpeTool *>(_desktop->event_context);
+    if (!lc) {
+        return;
+    }
+
+    bool show = _measuring_item->get_active();
+
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+    prefs->setBool("/tools/lpetool/show_measuring_info",  show);
+
+    lpetool_show_measuring_info(lc, show);
+
+    _units_item->set_sensitive( show );
+}
+
+void
+LPEToolbar::unit_changed(int /* NotUsed */)
+{
+    Unit const *unit = _tracker->getActiveUnit();
+    g_return_if_fail(unit != nullptr);
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+    prefs->setString("/tools/lpetool/unit", unit->abbr);
+
+    if (SP_IS_LPETOOL_CONTEXT(_desktop->event_context)) {
+        LpeTool *lc = SP_LPETOOL_CONTEXT(_desktop->event_context);
+        lpetool_delete_measuring_items(lc);
+        lpetool_create_measuring_items(lc);
+    }
+}
+
+void
+LPEToolbar::open_lpe_dialog()
+{
+    if (dynamic_cast<LpeTool *>(_desktop->event_context)) {
+        _desktop->getContainer()->new_dialog("LivePathEffect");
+    } else {
+        std::cerr << "LPEToolbar::open_lpe_dialog: LPEToolbar active but current tool is not LPE tool!" << std::endl;
+    }
+    _open_lpe_dialog_item->set_active(false);
+}
+
+void
+LPEToolbar::watch_ec(SPDesktop* desktop, Inkscape::UI::Tools::ToolBase* ec)
+{
+    if (SP_IS_LPETOOL_CONTEXT(ec)) {
+        // Watch selection
+        c_selection_modified = desktop->getSelection()->connectModified(sigc::mem_fun(*this, &LPEToolbar::sel_modified));
+        c_selection_changed = desktop->getSelection()->connectChanged(sigc::mem_fun(*this, &LPEToolbar::sel_changed));
+        sel_changed(desktop->getSelection());
+    } else {
+        if (c_selection_modified)
+            c_selection_modified.disconnect();
+        if (c_selection_changed)
+            c_selection_changed.disconnect();
+    }
+}
+
+void
+LPEToolbar::sel_modified(Inkscape::Selection *selection, guint /*flags*/)
+{
+    ToolBase *ec = selection->desktop()->event_context;
+    if (SP_IS_LPETOOL_CONTEXT(ec)) {
+        lpetool_update_measuring_items(SP_LPETOOL_CONTEXT(ec));
+    }
+}
+
+void
+LPEToolbar::sel_changed(Inkscape::Selection *selection)
+{
+    using namespace Inkscape::LivePathEffect;
+    ToolBase *ec = selection->desktop()->event_context;
+    if (!SP_IS_LPETOOL_CONTEXT(ec)) {
+        return;
+    }
+    LpeTool *lc = SP_LPETOOL_CONTEXT(ec);
+
+    lpetool_delete_measuring_items(lc);
+    lpetool_create_measuring_items(lc, selection);
+
+    // activate line segment combo box if a single item with LPELineSegment is selected
+    SPItem *item = selection->singleItem();
+    if (item && is<SPLPEItem>(item) && lpetool_item_has_construction(lc, item)) {
+
+        auto lpeitem = cast<SPLPEItem>(item);
+        Effect* lpe = lpeitem->getCurrentLPE();
+        if (lpe && lpe->effectType() == LINE_SEGMENT) {
+            LPELineSegment *lpels = static_cast<LPELineSegment*>(lpe);
+            _currentlpe = lpe;
+            _currentlpeitem = lpeitem;
+            _line_segment_combo->set_sensitive(true);
+            _line_segment_combo->set_active( lpels->end_type.get_value() );
+        } else {
+            _currentlpe = nullptr;
+            _currentlpeitem = nullptr;
+            _line_segment_combo->set_sensitive(false);
+        }
+
+    } else {
+        _currentlpe = nullptr;
+        _currentlpeitem = nullptr;
+        _line_segment_combo->set_sensitive(false);
+    }
+}
+
+}
+}
+}
+
+/*
+  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:fileencoding=utf-8 :