Merge gitlab.com:inkscape/inkscape

1 files changed, 239 insertions, 0 deletions

diff --git a/src/ui/widget/ink-select-one-action.cpp b/src/ui/widget/ink-select-one-action.cpp
new file mode 100644
index 000000000..40bafecc2
--- /dev/null
+++ b/src/ui/widget/ink-select-one-action.cpp
@@ -0,0 +1,239 @@
+/*
+ * Authors:
+ *   Tavmjong Bah <tavmjong@free.fr>
+ *
+ * Copyright  (C) 2017 Tavmjong Bah
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+
+/** \file
+    An action (menu/toolbar item) that allows selecting one choice out of many.
+
+    The choices may be displayed as:
+
+    1. A group of items in a toolbar with labels and/or icons.
+    2. As a drop-down menu with a labels and/or icons.
+*/
+
+#include "ink-select-one-action.h"
+
+#include <iostream>
+#include <gtkmm/toolitem.h>
+#include <gtkmm/menuitem.h>
+#include <gtkmm/radioaction.h>
+#include <gtkmm/radiomenuitem.h>
+#include <gtkmm/combobox.h>
+#include <gtkmm/menu.h>
+#include <gtkmm/box.h>
+#include <gtkmm/label.h>
+#include <gtkmm/image.h>
+
+InkSelectOneAction* InkSelectOneAction::create(const Glib::ustring &name,
+                                               const Glib::ustring &label,
+                                               const Glib::ustring &tooltip,
+                                               const Glib::ustring &stock_id,
+                                               Glib::RefPtr<Gtk::ListStore> store ) {
+
+    return new InkSelectOneAction(name, label, tooltip, stock_id, store);
+}
+
+InkSelectOneAction::InkSelectOneAction (const Glib::ustring &name,
+                                        const Glib::ustring &label,
+                                        const Glib::ustring &tooltip,
+                                        const Glib::ustring &stock_id,
+                                        Glib::RefPtr<Gtk::ListStore> store ) :
+    Gtk::Action(name, stock_id, label, tooltip),
+    _name( name ),
+    _label( label ),
+    _tooltip( tooltip ),
+    _stock_id( stock_id ),
+    _store (store),
+    _use_radio (true),
+    _use_label (true),
+    _use_icon  (true),
+    _icon_size ( Gtk::ICON_SIZE_LARGE_TOOLBAR ),
+    _combobox (nullptr),
+    _radioaction (nullptr),
+    _menuitem (nullptr)
+{
+}
+
+void InkSelectOneAction::set_active (gint active) {
+
+    if (_active != active) {
+
+        _active = active;
+
+        if (_combobox) {
+            _combobox->set_active (active);
+        }
+
+        if (_radioaction) {
+            _radioaction->set_current_value (active);
+        }
+
+        if (active < _radiomenuitems.size()) {
+            _radiomenuitems[ active ]->set_active();
+        }
+    }
+}
+
+Gtk::Widget* InkSelectOneAction::create_menu_item_vfunc() {
+
+    if (_menuitem == nullptr) {
+
+        _menuitem = Gtk::manage (new Gtk::MenuItem);
+        Gtk::Menu *menu = Gtk::manage (new Gtk::Menu);
+
+        Gtk::RadioButton::Group group;
+        int index = 0;
+        auto children = _store->children();
+        for (auto iter = children.begin(); iter != children.end(); ++iter) {
+            Gtk::TreeModel::Row row = *iter;
+
+            InkSelectOneActionColumns columns;
+            Glib::ustring label     = row[columns.col_label     ];
+            Glib::ustring icon      = row[columns.col_icon      ];
+            Glib::ustring tooltip   = row[columns.col_tooltip   ];
+            bool          sensitive = row[columns.col_sensitive ];
+
+            Gtk::RadioMenuItem* button = Gtk::manage(new Gtk::RadioMenuItem(group));
+            button->set_label (label);
+            button->set_tooltip_text( tooltip );
+            button->set_sensitive( sensitive );
+
+            button->signal_toggled().connect( sigc::bind<0>(
+              sigc::mem_fun(*this, &InkSelectOneAction::on_toggled_radiomenu), index++)
+                );
+
+            menu->add (*button);
+
+            _radiomenuitems.push_back( button );
+        }
+
+        if ( _active < _radiomenuitems.size()) {
+            _radiomenuitems[ _active ]->set_active();
+        }
+   
+        _menuitem->set_submenu (*menu);
+        _menuitem->show_all();
+    }
+
+    return _menuitem;
+}
+
+
+Gtk::Widget* InkSelectOneAction::create_tool_item_vfunc() {
+    // Either a group of radio actions or a combobox with labels and/or icons.
+
+    Gtk::ToolItem *tool_item = new Gtk::ToolItem;
+
+    if (_use_radio) {
+        // Create radio actions (note: these are not radio buttons).
+
+        Gtk::Box* box = Gtk::manage(new Gtk::Box());
+        tool_item->add (*box);  
+
+        Gtk::RadioAction::Group group;
+        int index = 0;
+        auto children = _store->children();
+        for (auto iter = children.begin(); iter != children.end(); ++iter) {
+            Gtk::TreeModel::Row row = *iter;
+
+            InkSelectOneActionColumns columns;
+            Glib::ustring label     = row[columns.col_label    ];
+            Glib::ustring icon      = row[columns.col_icon     ];
+            Glib::ustring tooltip   = row[columns.col_tooltip  ];
+            bool          sensitive = row[columns.col_sensitive];
+            Glib::RefPtr<Gtk::RadioAction> action;
+            if (_use_icon) {
+                action =
+                    Gtk::RadioAction::create_with_icon_name (group, "Anonymous", icon, label, tooltip);
+            } else {
+                action =
+                    Gtk::RadioAction::create (group, "Anonymous", label, tooltip);
+            }
+            action->set_property( "value", index++ ); // To identify uniquely each radioaction.
+            action->set_sensitive( sensitive );
+
+            // Save first action for use in setting/getting active value.
+            if (!_radioaction) {
+                _radioaction = action;
+            }
+
+            Gtk::ToolItem* item = action->create_tool_item(); 
+            box->add (*item);
+        }
+
+        _radioaction->signal_changed().connect( sigc::mem_fun(*this, &InkSelectOneAction::on_changed_radioaction));
+
+    } else {
+        // Create combobox
+
+        _combobox = Gtk::manage (new Gtk::ComboBox());
+        _combobox->set_model(_store);
+
+        InkSelectOneActionColumns columns;
+        if (_use_icon ) {
+            Gtk::CellRendererPixbuf *renderer = new Gtk::CellRendererPixbuf;
+            renderer->set_property ("stock_size", Gtk::ICON_SIZE_LARGE_TOOLBAR);
+            _combobox->pack_start (*renderer, false);
+            _combobox->add_attribute (*renderer, "icon_name", columns.col_icon   );
+        }
+  
+        if (_use_label) {
+            _combobox->pack_start(columns.col_label);
+        }
+
+        std::vector<Gtk::CellRenderer*> cells = _combobox->get_cells();
+        for (auto iter = cells.begin(); iter!= cells.end(); ++iter) {
+            _combobox->add_attribute (**iter, "sensitive", columns.col_sensitive);
+        }
+
+        _combobox->set_active (_active);
+
+        _combobox->signal_changed().connect(
+            sigc::mem_fun(*this, &InkSelectOneAction::on_changed_combobox));
+
+        tool_item->add (*_combobox);
+    }
+
+    tool_item->show_all();
+
+    return tool_item;
+}
+
+void InkSelectOneAction::on_changed_combobox() {
+
+    set_active( _combobox->get_active_row_number() );
+     _changed.emit (_active);
+}
+
+void InkSelectOneAction::on_changed_radioaction(const Glib::RefPtr<Gtk::RadioAction>& current) {
+
+    set_active( current->get_current_value() );
+    _changed.emit (_active);
+}
+
+void InkSelectOneAction::on_toggled_radiomenu(int n) {
+
+    // toggled emitted twice, first for button toggled off, second for button toggled on.
+    // We want to react only to the button turned on.
+    if ( n < _radiomenuitems.size() &&_radiomenuitems[ n ]->get_active()) {
+        set_active ( n );
+        _changed.emit (_active);
+    }
+}
+
+/*
+  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:textwidth=99 :