1 files changed, 613 insertions, 0 deletions
diff --git a/src/ui/toolbar/mesh-toolbar.cpp b/src/ui/toolbar/mesh-toolbar.cpp
new file mode 100644
index 0000000..1bd1e54
--- /dev/null
+++ b/src/ui/toolbar/mesh-toolbar.cpp
@@ -0,0 +1,613 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Gradient aux toolbar
+ *
+ * Authors:
+ *   bulia byak <bulia@dr.com>
+ *   Johan Engelen <j.b.c.engelen@ewi.utwente.nl>
+ *   Abhishek Sharma
+ *   Tavmjong Bah <tavjong@free.fr>
+ *
+ * Copyright (C) 2012 Tavmjong Bah
+ * Copyright (C) 2007 Johan Engelen
+ * Copyright (C) 2005 authors
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include "mesh-toolbar.h"
+
+#include <glibmm/i18n.h>
+
+#include <gtkmm/comboboxtext.h>
+#include <gtkmm/messagedialog.h>
+#include <gtkmm/radiotoolbutton.h>
+#include <gtkmm/separatortoolitem.h>
+
+#include "desktop-style.h"
+#include "desktop.h"
+#include "document-undo.h"
+#include "gradient-chemistry.h"
+#include "gradient-drag.h"
+#include "inkscape.h"
+
+#include "object/sp-defs.h"
+#include "object/sp-mesh-gradient.h"
+#include "object/sp-stop.h"
+#include "style.h"
+
+#include "svg/css-ostringstream.h"
+
+#include "ui/icon-names.h"
+#include "ui/simple-pref-pusher.h"
+#include "ui/tools/gradient-tool.h"
+#include "ui/tools/mesh-tool.h"
+#include "ui/widget/canvas.h"
+#include "ui/widget/color-preview.h"
+#include "ui/widget/combo-tool-item.h"
+#include "ui/widget/gradient-image.h"
+#include "ui/widget/spin-button-tool-item.h"
+
+using Inkscape::DocumentUndo;
+using Inkscape::UI::Tools::MeshTool;
+
+static bool blocked = false;
+
+// Get a list of selected meshes taking into account fill/stroke toggles
+std::vector<SPMeshGradient *>  ms_get_dt_selected_gradients(Inkscape::Selection *selection)
+{
+    std::vector<SPMeshGradient *> ms_selected;
+
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+    bool edit_fill   = prefs->getBool("/tools/mesh/edit_fill",   true);
+    bool edit_stroke = prefs->getBool("/tools/mesh/edit_stroke", true);
+
+    auto itemlist= selection->items();
+    for(auto i=itemlist.begin();i!=itemlist.end();++i){
+        SPItem *item = *i;// get the items gradient, not the getVector() version
+        SPStyle *style = item->style;
+
+        if (style) {
+
+            
+            if (edit_fill   && style->fill.isPaintserver()) {
+                SPPaintServer *server = item->style->getFillPaintServer();
+                auto mesh = cast<SPMeshGradient>(server);
+                if (mesh) {
+                    ms_selected.push_back(mesh);
+                }
+            }
+
+            if (edit_stroke && style->stroke.isPaintserver()) {
+                SPPaintServer *server = item->style->getStrokePaintServer();
+                auto mesh = cast<SPMeshGradient>(server);
+                if (mesh) {
+                    ms_selected.push_back(mesh);
+                }
+            }
+        }
+
+    }
+    return ms_selected;
+}
+
+
+/*
+ * Get the current selection status from the desktop
+ */
+void ms_read_selection( Inkscape::Selection *selection,
+                        SPMeshGradient *&ms_selected,
+                        bool &ms_selected_multi,
+                        SPMeshType &ms_type,
+                        bool &ms_type_multi )
+{
+    ms_selected = nullptr;
+    ms_selected_multi = false;
+    ms_type = SP_MESH_TYPE_COONS;
+    ms_type_multi = false;
+
+    bool first = true;
+
+    // Read desktop selection, taking into account fill/stroke toggles
+    std::vector<SPMeshGradient *> meshes = ms_get_dt_selected_gradients( selection );
+    for (auto & meshe : meshes) {
+        if (first) {
+            ms_selected = meshe;
+            ms_type = meshe->type;
+            first = false;
+        } else {
+            if (ms_selected != meshe) {
+                ms_selected_multi = true;
+            }
+            if (ms_type != meshe->type) {
+                ms_type_multi = true;
+            }
+        }
+    }
+}
+
+
+/*
+ * Callback functions for user actions
+ */
+
+
+/** Temporary hack: Returns the mesh tool in the active desktop.
+ * Will go away during tool refactoring. */
+static MeshTool *get_mesh_tool()
+{
+    MeshTool *tool = nullptr;
+    if (SP_ACTIVE_DESKTOP ) {
+        Inkscape::UI::Tools::ToolBase *ec = SP_ACTIVE_DESKTOP->event_context;
+        if (SP_IS_MESH_CONTEXT(ec)) {
+            tool = static_cast<MeshTool*>(ec);
+        }
+    }
+    return tool;
+}
+
+
+namespace Inkscape {
+namespace UI {
+namespace Toolbar {
+MeshToolbar::MeshToolbar(SPDesktop *desktop)
+    : Toolbar(desktop),
+    _edit_fill_pusher(nullptr)
+{
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+
+    /* New mesh: normal or conical */
+    {
+        add_label(_("New:"));
+
+        Gtk::RadioToolButton::Group new_type_group;
+
+        auto normal_type_btn = Gtk::manage(new Gtk::RadioToolButton(new_type_group, _("normal")));
+        normal_type_btn->set_tooltip_text(_("Create mesh gradient"));
+        normal_type_btn->set_icon_name(INKSCAPE_ICON("paint-gradient-mesh"));
+        _new_type_buttons.push_back(normal_type_btn);
+
+        auto conical_type_btn = Gtk::manage(new Gtk::RadioToolButton(new_type_group, _("conical")));
+        conical_type_btn->set_tooltip_text(_("Create conical gradient"));
+        conical_type_btn->set_icon_name(INKSCAPE_ICON("paint-gradient-conical"));
+        _new_type_buttons.push_back(conical_type_btn);
+
+        int btn_idx = 0;
+        for (auto btn : _new_type_buttons) {
+            add(*btn);
+            btn->set_sensitive();
+            btn->signal_clicked().connect(sigc::bind(sigc::mem_fun(*this, &MeshToolbar::new_geometry_changed), btn_idx++));
+        }
+
+        gint mode = prefs->getInt("/tools/mesh/mesh_geometry", SP_MESH_GEOMETRY_NORMAL);
+        _new_type_buttons[mode]->set_active();
+    }
+
+    /* New gradient on fill or stroke*/
+    {
+        Gtk::RadioToolButton::Group new_fillstroke_group;
+
+        auto fill_button = Gtk::manage(new Gtk::RadioToolButton(new_fillstroke_group, _("fill")));
+        fill_button->set_tooltip_text(_("Create gradient in the fill"));
+        fill_button->set_icon_name(INKSCAPE_ICON("object-fill"));
+        _new_fillstroke_buttons.push_back(fill_button);
+
+        auto stroke_btn = Gtk::manage(new Gtk::RadioToolButton(new_fillstroke_group, _("stroke")));
+        stroke_btn->set_tooltip_text(_("Create gradient in the stroke"));
+        stroke_btn->set_icon_name(INKSCAPE_ICON("object-stroke"));
+        _new_fillstroke_buttons.push_back(stroke_btn);
+
+        int btn_idx = 0;
+        for(auto btn : _new_fillstroke_buttons) {
+            add(*btn);
+            btn->set_sensitive(true);
+            btn->signal_clicked().connect(sigc::bind(sigc::mem_fun(*this, &MeshToolbar::new_fillstroke_changed), btn_idx++));
+        }
+
+        gint mode = prefs->getInt("/tools/mesh/newfillorstroke");
+        _new_fillstroke_buttons[mode]->set_active();
+    }
+
+    /* Number of mesh rows */
+    {
+        std::vector<double> values = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
+        auto rows_val = prefs->getDouble("/tools/mesh/mesh_rows", 1);
+        _row_adj = Gtk::Adjustment::create(rows_val, 1, 20, 1, 1);
+        auto row_item = Gtk::manage(new UI::Widget::SpinButtonToolItem("mesh-row", _("Rows:"), _row_adj, 1.0, 0));
+        row_item->set_tooltip_text(_("Number of rows in new mesh"));
+        row_item->set_custom_numeric_menu_data(values);
+        row_item->set_focus_widget(desktop->canvas);
+        _row_adj->signal_value_changed().connect(sigc::mem_fun(*this, &MeshToolbar::row_changed));
+        add(*row_item);
+        row_item->set_sensitive(true);
+    }
+
+    /* Number of mesh columns */
+    {
+        std::vector<double> values = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
+        auto col_val = prefs->getDouble("/tools/mesh/mesh_cols", 1);
+        _col_adj = Gtk::Adjustment::create(col_val, 1, 20, 1, 1);
+        auto col_item = Gtk::manage(new UI::Widget::SpinButtonToolItem("mesh-col", _("Columns:"), _col_adj, 1.0, 0));
+        col_item->set_tooltip_text(_("Number of columns in new mesh"));
+        col_item->set_custom_numeric_menu_data(values);
+        col_item->set_focus_widget(desktop->canvas);
+        _col_adj->signal_value_changed().connect(sigc::mem_fun(*this, &MeshToolbar::col_changed));
+        add(*col_item);
+        col_item->set_sensitive(true);
+    }
+
+    add(* Gtk::manage(new Gtk::SeparatorToolItem()));
+
+    // TODO: These were disabled in the UI file.  Either activate or delete
+#if 0
+    /* Edit fill mesh */
+    {
+        _edit_fill_item = add_toggle_button(_("Edit Fill"),
+                                            _("Edit fill mesh"));
+        _edit_fill_item->set_icon_name(INKSCAPE_ICON("object-fill"));
+        _edit_fill_pusher.reset(new UI::SimplePrefPusher(_edit_fill_item, "/tools/mesh/edit_fill"));
+        _edit_fill_item->signal_toggled().connect(sigc::mem_fun(*this, &MeshToolbar::toggle_fill_stroke));
+    }
+
+    /* Edit stroke mesh */
+    {
+        _edit_stroke_item = add_toggle_button(_("Edit Stroke"),
+                                              _("Edit stroke mesh"));
+        _edit_stroke_item->set_icon_name(INKSCAPE_ICON("object-stroke"));
+        _edit_stroke_pusher.reset(new UI::SimplePrefPusher(_edit_stroke_item, "/tools/mesh/edit_stroke"));
+        _edit_stroke_item->signal_toggled().connect(sigc::mem_fun(*this, &MeshToolbar::toggle_fill_stroke));
+    }
+
+    /* Show/hide side and tensor handles */
+    {
+        auto show_handles_item = add_toggle_button(_("Show Handles"),
+                                                   _("Show handles"));
+        show_handles_item->set_icon_name(INKSCAPE_ICON("show-node-handles"));
+        _show_handles_pusher.reset(new UI::SimplePrefPusher(show_handles_item, "/tools/mesh/show_handles"));
+        show_handles_item->signal_toggled().connect(sigc::mem_fun(*this, &MeshToolbar::toggle_handles));
+    }
+#endif
+
+    desktop->connectEventContextChanged(sigc::mem_fun(*this, &MeshToolbar::watch_ec));
+
+    {
+        auto btn = Gtk::manage(new Gtk::ToolButton(_("Toggle Sides")));
+        btn->set_tooltip_text(_("Toggle selected sides between Beziers and lines."));
+        btn->set_icon_name(INKSCAPE_ICON("node-segment-line"));
+        btn->signal_clicked().connect(sigc::mem_fun(*this, &MeshToolbar::toggle_sides));
+        add(*btn);
+    }
+
+    {
+        auto btn = Gtk::manage(new Gtk::ToolButton(_("Make elliptical")));
+        btn->set_tooltip_text(_("Make selected sides elliptical by changing length of handles. Works best if handles already approximate ellipse."));
+        btn->set_icon_name(INKSCAPE_ICON("node-segment-curve"));
+        btn->signal_clicked().connect(sigc::mem_fun(*this, &MeshToolbar::make_elliptical));
+        add(*btn);
+    }
+
+    {
+        auto btn = Gtk::manage(new Gtk::ToolButton(_("Pick colors:")));
+        btn->set_tooltip_text(_("Pick colors for selected corner nodes from underneath mesh."));
+        btn->set_icon_name(INKSCAPE_ICON("color-picker"));
+        btn->signal_clicked().connect(sigc::mem_fun(*this, &MeshToolbar::pick_colors));
+        add(*btn);
+    }
+
+
+    {
+        auto btn = Gtk::manage(new Gtk::ToolButton(_("Scale mesh to bounding box:")));
+        btn->set_tooltip_text(_("Scale mesh to fit inside bounding box."));
+        btn->set_icon_name(INKSCAPE_ICON("mesh-gradient-fit"));
+        btn->signal_clicked().connect(sigc::mem_fun(*this, &MeshToolbar::fit_mesh));
+        add(*btn);
+    }
+
+    add(* Gtk::manage(new Gtk::SeparatorToolItem()));
+
+    /* Warning */
+    {
+        auto btn = Gtk::manage(new Gtk::ToolButton(_("WARNING: Mesh SVG Syntax Subject to Change")));
+        btn->set_tooltip_text(_("WARNING: Mesh SVG Syntax Subject to Change"));
+        btn->set_icon_name(INKSCAPE_ICON("dialog-warning"));
+        add(*btn);
+        btn->signal_clicked().connect(sigc::mem_fun(*this, &MeshToolbar::warning_popup));
+        btn->set_sensitive(true);
+    }
+
+    /* Type */
+    {
+        UI::Widget::ComboToolItemColumns columns;
+        Glib::RefPtr<Gtk::ListStore> store = Gtk::ListStore::create(columns);
+        Gtk::TreeModel::Row row;
+
+        row = *(store->append());
+        row[columns.col_label    ] = C_("Type", "Coons");
+        row[columns.col_sensitive] = true;
+
+        row = *(store->append());
+        row[columns.col_label    ] = _("Bicubic");
+        row[columns.col_sensitive] = true;
+
+        _select_type_item = Gtk::manage(UI::Widget::ComboToolItem::create(_("Smoothing"),
+            // TRANSLATORS: Type of Smoothing. See https://en.wikipedia.org/wiki/Coons_patch
+            _("Coons: no smoothing. Bicubic: smoothing across patch boundaries."),
+            "Not Used", store));
+        _select_type_item->use_group_label(true);
+
+        _select_type_item->set_active(0);
+
+        _select_type_item->signal_changed().connect(sigc::mem_fun(*this, &MeshToolbar::type_changed));
+        add(*_select_type_item);
+    }
+
+    show_all();
+}
+
+/**
+ * Mesh auxiliary toolbar construction and setup.
+ * Don't forget to add to XML in widgets/toolbox.cpp!
+ *
+ */
+GtkWidget *
+MeshToolbar::create(SPDesktop * desktop)
+{
+    auto toolbar = new MeshToolbar(desktop);
+    return GTK_WIDGET(toolbar->gobj());
+}
+
+void
+MeshToolbar::new_geometry_changed(int mode)
+{
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+    prefs->setInt("/tools/mesh/mesh_geometry", mode);
+}
+
+void
+MeshToolbar::new_fillstroke_changed(int mode)
+{
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+    prefs->setInt("/tools/mesh/newfillorstroke", mode);
+}
+
+void
+MeshToolbar::row_changed()
+{
+    if (blocked) {
+        return;
+    }
+
+    blocked = TRUE;
+
+    int rows = _row_adj->get_value();
+
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+
+    prefs->setInt("/tools/mesh/mesh_rows", rows);
+
+    blocked = FALSE;
+}
+
+void
+MeshToolbar::col_changed()
+{
+    if (blocked) {
+        return;
+    }
+
+    blocked = TRUE;
+
+    int cols = _col_adj->get_value();
+
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+
+    prefs->setInt("/tools/mesh/mesh_cols", cols);
+
+    blocked = FALSE;
+}
+
+void
+MeshToolbar::toggle_fill_stroke()
+{
+    auto prefs = Inkscape::Preferences::get();
+    prefs->setBool("tools/mesh/edit_fill", _edit_fill_item->get_active());
+    prefs->setBool("tools/mesh/edit_stroke", _edit_stroke_item->get_active());
+
+    MeshTool *mt = get_mesh_tool();
+    if (mt) {
+        GrDrag *drag = mt->get_drag();
+        drag->updateDraggers();
+        drag->updateLines();
+        drag->updateLevels();
+        selection_changed(nullptr); // Need to update Type widget
+    }
+}
+
+void
+MeshToolbar::toggle_handles()
+{
+    MeshTool *mt = get_mesh_tool();
+    if (mt) {
+        GrDrag *drag = mt->get_drag();
+        drag->refreshDraggers();
+    }
+}
+
+void
+MeshToolbar::watch_ec(SPDesktop* desktop, Inkscape::UI::Tools::ToolBase* ec)
+{
+    if (SP_IS_MESH_CONTEXT(ec)) {
+        // connect to selection modified and changed signals
+        Inkscape::Selection *selection = desktop->getSelection();
+        SPDocument *document = desktop->getDocument();
+
+        c_selection_changed = selection->connectChanged(sigc::mem_fun(*this, &MeshToolbar::selection_changed));
+        c_selection_modified = selection->connectModified(sigc::mem_fun(*this, &MeshToolbar::selection_modified));
+        c_subselection_changed = desktop->connectToolSubselectionChanged(sigc::mem_fun(*this, &MeshToolbar::drag_selection_changed));
+
+        c_defs_release = document->getDefs()->connectRelease(sigc::mem_fun(*this, &MeshToolbar::defs_release));
+        c_defs_modified = document->getDefs()->connectModified(sigc::mem_fun(*this, &MeshToolbar::defs_modified));
+        selection_changed(selection);
+    } else {
+        if (c_selection_changed)
+            c_selection_changed.disconnect();
+        if (c_selection_modified)
+            c_selection_modified.disconnect();
+        if (c_subselection_changed)
+            c_subselection_changed.disconnect();
+        if (c_defs_release)
+            c_defs_release.disconnect();
+        if (c_defs_modified)
+            c_defs_modified.disconnect();
+    }
+}
+
+void
+MeshToolbar::selection_modified(Inkscape::Selection *selection, guint /*flags*/)
+{
+    selection_changed(selection);
+}
+
+void
+MeshToolbar::drag_selection_changed(gpointer /*dragger*/)
+{
+    selection_changed(nullptr);
+}
+
+void
+MeshToolbar::defs_release(SPObject * /*defs*/)
+{
+    selection_changed(nullptr);
+}
+
+void
+MeshToolbar::defs_modified(SPObject * /*defs*/, guint /*flags*/)
+{
+    selection_changed(nullptr);
+}
+
+/*
+ * Core function, setup all the widgets whenever something changes on the desktop
+ */
+void
+MeshToolbar::selection_changed(Inkscape::Selection * /* selection */)
+{
+    // std::cout << "ms_tb_selection_changed" << std::endl;
+
+    if (blocked)
+        return;
+
+    if (!_desktop) {
+        return;
+    }
+
+    Inkscape::Selection *selection = _desktop->getSelection(); // take from desktop, not from args
+    if (selection) {
+        // ToolBase *ev = sp_desktop_event_context(desktop);
+        // GrDrag *drag = NULL;
+        // if (ev) {
+        //     drag = ev->get_drag();
+        //     // Hide/show handles?
+        // }
+
+        SPMeshGradient *ms_selected = nullptr;
+        SPMeshType ms_type = SP_MESH_TYPE_COONS;
+        bool ms_selected_multi = false;
+        bool ms_type_multi = false; 
+        ms_read_selection( selection, ms_selected, ms_selected_multi, ms_type, ms_type_multi );
+        // std::cout << "   type: " << ms_type << std::endl;
+        
+        if (_select_type_item) {
+            _select_type_item->set_sensitive(!ms_type_multi);
+            blocked = TRUE;
+            _select_type_item->set_active(ms_type);
+            blocked = FALSE;
+        }
+    }
+}
+
+void
+MeshToolbar::warning_popup()
+{
+    char *msg = _("Mesh gradients are part of SVG 2:\n"
+                  "* Syntax may change.\n"
+                  "* Web browser implementation is not guaranteed.\n"
+                  "\n"
+                  "For web: convert to bitmap (Edit->Make bitmap copy).\n"
+                  "For print: export to PDF.");
+    Gtk::MessageDialog dialog(msg, false, Gtk::MESSAGE_WARNING,
+                              Gtk::BUTTONS_OK, true);
+    dialog.run();
+}
+
+/**
+ * Sets mesh type: Coons, Bicubic
+ */
+void
+MeshToolbar::type_changed(int mode)
+{
+    if (blocked) {
+        return;
+    }
+
+    Inkscape::Selection *selection = _desktop->getSelection();
+    std::vector<SPMeshGradient *> meshes = ms_get_dt_selected_gradients(selection);
+
+    SPMeshType type = (SPMeshType) mode;
+    for (auto & meshe : meshes) {
+        meshe->type = type;
+        meshe->type_set = true;
+        meshe->updateRepr();
+    }
+    if (!meshes.empty() ) {
+        DocumentUndo::done(_desktop->getDocument(), _("Set mesh type"), INKSCAPE_ICON("mesh-gradient"));
+    }
+}
+
+void
+MeshToolbar::toggle_sides()
+{
+    if (MeshTool *mt = get_mesh_tool()) {
+        mt->corner_operation(MG_CORNER_SIDE_TOGGLE);
+    }
+}
+
+void
+MeshToolbar::make_elliptical()
+{
+    if (MeshTool *mt = get_mesh_tool()) {
+        mt->corner_operation(MG_CORNER_SIDE_ARC);
+    }
+}
+
+void
+MeshToolbar::pick_colors()
+{
+    if (MeshTool *mt = get_mesh_tool()) {
+        mt->corner_operation(MG_CORNER_COLOR_PICK);
+    }
+}
+
+void
+MeshToolbar::fit_mesh()
+{
+    if (MeshTool *mt = get_mesh_tool()) {
+        mt->fit_mesh_in_bbox();
+    }
+}
+
+
+}
+}
+}
+
+/*
+  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 :