1 /**
2 * \brief Simplified management of enumerations in the UI as combobox.
3 *
4 * Authors:
5 * Nicholas Bishop <nicholasbishop@gmail.com>
6 * Johan Engelen <j.b.c.engelen@ewi.utwente.nl>
7 *
8 * Copyright (C) 2007 Authors
9 *
10 * Released under GNU GPL. Read the file 'COPYING' for more information.
11 */
13 #ifndef INKSCAPE_UI_WIDGET_COMBO_ENUMS_H
14 #define INKSCAPE_UI_WIDGET_COMBO_ENUMS_H
16 #include <gtkmm/combobox.h>
17 #include <gtkmm/liststore.h>
18 #include "attr-widget.h"
19 #include "util/enums.h"
20 #include "ui/widget/labelled.h"
22 namespace Inkscape {
23 namespace UI {
24 namespace Widget {
26 template<typename E> class ComboBoxEnum : public Gtk::ComboBox, public AttrWidget
27 {
28 private:
29 int on_sort_compare( const Gtk::TreeModel::iterator & a, const Gtk::TreeModel::iterator & b)
30 {
31 Glib::ustring an=(*a)[_columns.label];
32 Glib::ustring bn=(*b)[_columns.label];
33 return an.compare(bn);
34 }
36 public:
37 ComboBoxEnum(E default_value, const Util::EnumDataConverter<E>& c, const SPAttributeEnum a = SP_ATTR_INVALID)
38 : AttrWidget(a, (unsigned int)default_value), setProgrammatically(false), _converter(c)
39 {
40 signal_changed().connect(signal_attr_changed().make_slot());
42 _model = Gtk::ListStore::create(_columns);
43 set_model(_model);
45 pack_start(_columns.label);
47 // Initialize list
48 for(int i = 0; i < static_cast<int>(_converter._length); ++i) {
49 Gtk::TreeModel::Row row = *_model->append();
50 const Util::EnumData<E>* data = &_converter.data(i);
51 row[_columns.data] = data;
52 row[_columns.label] = _( _converter.get_label(data->id).c_str() );
53 }
54 set_active_by_id(default_value);
56 // Sort the list
57 _model->set_default_sort_func(sigc::mem_fun(*this, &ComboBoxEnum<E>::on_sort_compare));
58 _model->set_sort_column(_columns.label, Gtk::SORT_ASCENDING);
59 }
61 ComboBoxEnum(const Util::EnumDataConverter<E>& c, const SPAttributeEnum a = SP_ATTR_INVALID)
62 : AttrWidget(a, (unsigned int) 0), setProgrammatically(false), _converter(c)
63 {
64 signal_changed().connect(signal_attr_changed().make_slot());
66 _model = Gtk::ListStore::create(_columns);
67 set_model(_model);
69 pack_start(_columns.label);
71 // Initialize list
72 for(unsigned int i = 0; i < _converter._length; ++i) {
73 Gtk::TreeModel::Row row = *_model->append();
74 const Util::EnumData<E>* data = &_converter.data(i);
75 row[_columns.data] = data;
76 row[_columns.label] = _( _converter.get_label(data->id).c_str() );
77 }
78 set_active(0);
80 // Sort the list
81 _model->set_default_sort_func(sigc::mem_fun(*this, &ComboBoxEnum<E>::on_sort_compare));
82 _model->set_sort_column(_columns.label, Gtk::SORT_ASCENDING);
83 }
85 virtual Glib::ustring get_as_attribute() const
86 {
87 return get_active_data()->key;
88 }
90 virtual void set_from_attribute(SPObject* o)
91 {
92 setProgrammatically = true;
93 const gchar* val = attribute_value(o);
94 if(val)
95 set_active_by_id(_converter.get_id_from_key(val));
96 else
97 set_active(get_default()->as_uint());
98 }
100 const Util::EnumData<E>* get_active_data() const
101 {
102 Gtk::TreeModel::iterator i = this->get_active();
103 if(i)
104 return (*i)[_columns.data];
105 return 0;
106 }
108 void add_row(const Glib::ustring& s)
109 {
110 Gtk::TreeModel::Row row = *_model->append();
111 row[_columns.data] = 0;
112 row[_columns.label] = s;
113 }
115 void remove_row(E id) {
116 Gtk::TreeModel::iterator i;
118 for(i = _model->children().begin(); i != _model->children().end(); ++i) {
119 const Util::EnumData<E>* data = (*i)[_columns.data];
121 if(data->id == id)
122 break;
123 }
125 if(i != _model->children().end())
126 _model->erase(i);
127 }
129 void set_active_by_id(E id) {
130 setProgrammatically = true;
131 for(Gtk::TreeModel::iterator i = _model->children().begin();
132 i != _model->children().end(); ++i)
133 {
134 const Util::EnumData<E>* data = (*i)[_columns.data];
135 if(data->id == id) {
136 set_active(i);
137 break;
138 }
139 }
140 };
142 void set_active_by_key(const Glib::ustring& key) {
143 setProgrammatically = true;
144 set_active_by_id( _converter.get_id_from_key(key) );
145 };
147 bool setProgrammatically;
149 private:
150 class Columns : public Gtk::TreeModel::ColumnRecord
151 {
152 public:
153 Columns()
154 {
155 add(data);
156 add(label);
157 }
159 Gtk::TreeModelColumn<const Util::EnumData<E>*> data;
160 Gtk::TreeModelColumn<Glib::ustring> label;
161 };
163 Columns _columns;
164 Glib::RefPtr<Gtk::ListStore> _model;
165 const Util::EnumDataConverter<E>& _converter;
166 };
169 template<typename E> class LabelledComboBoxEnum : public Labelled
170 {
171 public:
172 LabelledComboBoxEnum( Glib::ustring const &label,
173 Glib::ustring const &tooltip,
174 const Util::EnumDataConverter<E>& c,
175 Glib::ustring const &suffix = "",
176 Glib::ustring const &icon = "",
177 bool mnemonic = true)
178 : Labelled(label, tooltip, new ComboBoxEnum<E>(c), suffix, icon, mnemonic)
179 { }
181 ComboBoxEnum<E>* getCombobox() {
182 return static_cast< ComboBoxEnum<E>* > (_widget);
183 }
184 };
186 }
187 }
188 }
190 #endif
192 /*
193 Local Variables:
194 mode:c++
195 c-file-style:"stroustrup"
196 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
197 indent-tabs-mode:nil
198 fill-column:99
199 End:
200 */
201 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :