File: examplewindow.cc

package info (click to toggle)
gtkmm-documentation 3.12.0-1
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 18,628 kB
  • ctags: 2,376
  • sloc: cpp: 12,615; sh: 1,004; makefile: 808; perl: 57
file content (154 lines) | stat: -rw-r--r-- 5,428 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
//$Id: examplewindow.cc 836 2007-05-09 03:02:38Z jjongsma $ -*- c++ -*-

/* gtkmm example Copyright (C) 2002 gtkmm development team
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include <iostream>
#include "examplewindow.h"

ExampleWindow::ExampleWindow()
: m_VBox(Gtk::ORIENTATION_VERTICAL),
  m_Button_Quit("Quit")
{
  set_title("Gtk::TreeView (ListStore) example");
  set_border_width(5);
  set_default_size(400, 200);

  add(m_VBox);

  //Add the TreeView, inside a ScrolledWindow, with the button underneath:
  m_ScrolledWindow.add(m_TreeView);

  //Only show the scrollbars when they are necessary:
  m_ScrolledWindow.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);

  m_VBox.pack_start(m_ScrolledWindow);
  m_VBox.pack_start(m_ButtonBox, Gtk::PACK_SHRINK);

  m_ButtonBox.pack_start(m_Button_Quit, Gtk::PACK_SHRINK);
  m_ButtonBox.set_border_width(5);
  m_ButtonBox.set_layout(Gtk::BUTTONBOX_END);
  m_Button_Quit.signal_clicked().connect( sigc::mem_fun(*this,
              &ExampleWindow::on_button_quit) );

  //Create and fill the combo models
  //You could also use set_cell_data_func() to choose or fill these later.
  m_refTreeModelCombo1 = Gtk::ListStore::create(m_ColumnsCombo);

  Gtk::TreeModel::Row row = *(m_refTreeModelCombo1->append());
  row[m_ColumnsCombo.m_col_choice] = "abc";
  row = *(m_refTreeModelCombo1->append());
  row[m_ColumnsCombo.m_col_choice] = "def";

  m_refTreeModelCombo2 = Gtk::ListStore::create(m_ColumnsCombo);

  row = *(m_refTreeModelCombo2->append());
  //The value that can be chosen from the combo, to use in the model.
  row[m_ColumnsCombo.m_col_choice] = "foo";
  //A description, to help the user to choose the value from the combo.
  row[m_ColumnsCombo.m_col_description] = "The Foo item";
  row = *(m_refTreeModelCombo2->append());
  row[m_ColumnsCombo.m_col_choice] = "bar";
  row[m_ColumnsCombo.m_col_description] = "The item known as bar";
  row = *(m_refTreeModelCombo2->append());
  row[m_ColumnsCombo.m_col_choice] = "goo";
  row[m_ColumnsCombo.m_col_description] = "goo, goo, goo, goo";

  //Create the Tree model:
  m_refTreeModel = Gtk::ListStore::create(m_Columns);
  m_TreeView.set_model(m_refTreeModel);

  //Fill the TreeView's model
  row = *(m_refTreeModel->append());
  row[m_Columns.m_col_id] = 1;
  row[m_Columns.m_col_name] = "Billy Bob";
  row[m_Columns.m_col_itemchosen] = "click to choose";
  //Choose from this list to set the value in m_col_itemchosen.
  row[m_Columns.m_col_choices] = m_refTreeModelCombo1;

  row = *(m_refTreeModel->append());
  row[m_Columns.m_col_id] = 2;
  row[m_Columns.m_col_name] = "Joey Jojo";
  row[m_Columns.m_col_choices] = m_refTreeModelCombo2;

  row = *(m_refTreeModel->append());
  row[m_Columns.m_col_id] = 3;
  row[m_Columns.m_col_name] = "Rob McRoberts";
  row[m_Columns.m_col_choices] = m_refTreeModelCombo1;

  //Add the TreeView's view columns:
  m_TreeView.append_column("ID", m_Columns.m_col_id);
  m_TreeView.append_column("Name", m_Columns.m_col_name);

  //Create a Combo CellRenderer, instead of the default Text CellRenderer:
  Gtk::TreeView::Column* pColumn = Gtk::manage(
          new Gtk::TreeView::Column("Item Chosen") ); 
  Gtk::CellRendererCombo* pRenderer = Gtk::manage(
          new Gtk::CellRendererCombo);
  pColumn->pack_start(*pRenderer);
  m_TreeView.append_column(*pColumn);

  //Make this View column represent the m_col_itemchosen model column:
  pColumn->add_attribute(pRenderer->property_text(),
          m_Columns.m_col_itemchosen);

  // Allow the user to choose from this list to set the value in
  // m_col_itemchosen:
  pColumn->add_attribute(pRenderer->property_model(), m_Columns.m_col_choices);

  // Alternatively, you could use just one combo model, in all rows, instead of
  // mapping it to a model column:
  // pRenderer->property_model() = m_refTreeModelCombo1;

  // This must be a text column, in m_refTreeModelCombo1, or
  // m_refTreeModelCombo:
  pRenderer->property_text_column() = 0; 

  //Allow the user to edit the column:
  //This is done automatically when we use View::append_column(model_column),
  //but that uses a simple Text CellRenderer.
  pRenderer->property_editable() = true;

  pRenderer->signal_edited().connect( sigc::mem_fun(*this,
              &ExampleWindow::on_cellrenderer_choice_edited) );

  show_all_children();
}

ExampleWindow::~ExampleWindow()
{
}

void ExampleWindow::on_button_quit()
{
  hide();
}

void ExampleWindow::on_cellrenderer_choice_edited(
        const Glib::ustring& path_string, const Glib::ustring& new_text)
{
  Gtk::TreePath path(path_string);

  //Get the row from the path:
  Gtk::TreeModel::iterator iter = m_refTreeModel->get_iter(path);
  if(iter)
  {
      //Store the user's new text in the model:
      Gtk::TreeRow row = *iter;
      row[m_Columns.m_col_itemchosen] = new_text;
  }
}