summaryrefslogtreecommitdiffstats
path: root/src/widgets/spw-utilities.cpp
blob: 38759ef26e5aa6f050ed034df0e833d2b1854f63 (plain)
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
155
156
157
158
159
160
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Inkscape Widget Utilities
 *
 * Authors:
 *   Bryce W. Harrington <brycehar@bryceharrington.org>
 *   bulia byak <buliabyak@users.sf.net>
 *
 * Copyright (C) 2003 Bryce W. Harrington
 *
 * Released under GNU GPL v2+, read the file 'COPYING' for more information.
 */

#include <cstring>
#include <string>

#include <gtkmm/box.h>
#include <gtkmm/label.h>
#include <gtkmm/grid.h>

#include "selection.h"

#include "spw-utilities.h"

/**
 * Creates a label widget with the given text, at the given col, row
 * position in the table.
 */
Gtk::Label * spw_label(Gtk::Grid *table, const gchar *label_text, int col, int row, Gtk::Widget* target)
{
  Gtk::Label *label_widget = new Gtk::Label();
  g_assert(label_widget != nullptr);
  if (target != nullptr) {
    label_widget->set_text_with_mnemonic(label_text);
    label_widget->set_mnemonic_widget(*target);
  } else {
    label_widget->set_text(label_text);
  }
  label_widget->show();

  label_widget->set_halign(Gtk::ALIGN_START);
  label_widget->set_valign(Gtk::ALIGN_CENTER);
  label_widget->set_margin_start(4);
  label_widget->set_margin_end(4);

  table->attach(*label_widget, col, row, 1, 1);

  return label_widget;
}

/**
 * Creates a horizontal layout manager with 4-pixel spacing between children
 * and space for 'width' columns.
 */
Gtk::HBox * spw_hbox(Gtk::Grid * table, int width, int col, int row)
{
  /* Create a new hbox with a 4-pixel spacing between children */
  Gtk::HBox *hb = new Gtk::HBox(false, 4);
  g_assert(hb != nullptr);
  hb->show();
  hb->set_hexpand();
  hb->set_halign(Gtk::ALIGN_FILL);
  hb->set_valign(Gtk::ALIGN_CENTER);
  table->attach(*hb, col, row, width, 1);

  return hb;
}

/**
 * Finds the descendant of w which has the data with the given key and returns the data, or NULL if there's none.
 */
gpointer sp_search_by_data_recursive(GtkWidget *w, gpointer key)
{
    gpointer r = nullptr;

    if (w && G_IS_OBJECT(w)) {
        r = g_object_get_data(G_OBJECT(w), (gchar *) key);
    }
    if (r) return r;

    if (GTK_IS_CONTAINER(w)) {
            std::vector<Gtk::Widget*> children = Glib::wrap(GTK_CONTAINER(w))->get_children();
        for (auto i:children) {
            r = sp_search_by_data_recursive(GTK_WIDGET(i->gobj()), key);
            if (r) return r;
        }
    }

    return nullptr;
}

/**
 * Returns a named descendent of parent, which has the given name, or nullptr if there's none.
 *
 * \param[in] parent The widget to search
 * \param[in] name   The name of the desired child widget
 *
 * \return The specified child widget, or nullptr if it cannot be found
 */
Gtk::Widget *
sp_search_by_name_recursive(Gtk::Widget *parent, const Glib::ustring& name)
{
    auto parent_bin = dynamic_cast<Gtk::Bin *>(parent);
    auto parent_container = dynamic_cast<Gtk::Container *>(parent);

    if (parent && parent->get_name() == name) {
        return parent;
    }
    else if (parent_bin) {
        auto child = parent_bin->get_child();
        return sp_search_by_name_recursive(child, name);
    }
    else if (parent_container) {
        auto children = parent_container->get_children();

        for (auto child : children) {
            auto tmp = sp_search_by_name_recursive(child, name);

            if (tmp) {
                return tmp;
            }
        }
    }

    return nullptr;
}

/**
 * Returns the descendant of w which has the given key and value pair, or NULL if there's none.
 */
GtkWidget *sp_search_by_value_recursive(GtkWidget *w, gchar *key, gchar *value)
{
    gchar *r = nullptr;

    if (w && G_IS_OBJECT(w)) {
        r = (gchar *) g_object_get_data(G_OBJECT(w), key);
    }
    if (r && !strcmp (r, value)) return w;

    if (GTK_IS_CONTAINER(w)) {
                std::vector<Gtk::Widget*> children = Glib::wrap(GTK_CONTAINER(w))->get_children();
        for (auto i:children) {
            GtkWidget *child = sp_search_by_value_recursive(GTK_WIDGET(i->gobj()), key, value);
            if (child) return child;
        }
    }

    return nullptr;
}

/*
  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 :