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
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
/*
* 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, read the file 'COPYING' for more information
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#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_hexpand();
label_widget->set_halign(Gtk::ALIGN_FILL);
label_widget->set_valign(Gtk::ALIGN_CENTER);
#if GTK_CHECK_VERSION(3,12,0)
label_widget->set_margin_start(4);
label_widget->set_margin_end(4);
#else
label_widget->set_margin_left(4);
label_widget->set_margin_right(4);
#endif
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;
}
static void
sp_set_font_size_recursive (GtkWidget *w, gpointer font)
{
guint size = GPOINTER_TO_UINT (font);
auto css_provider = gtk_css_provider_new();
const double pt_size = size / static_cast<double>(PANGO_SCALE);
std::ostringstream css_data;
css_data << "GtkWidget {\n"
<< " font-size: " << pt_size << "pt;\n"
<< "}\n";
gtk_css_provider_load_from_data(css_provider,
css_data.str().c_str(),
-1, nullptr);
auto style_context = gtk_widget_get_style_context(w);
gtk_style_context_add_provider(style_context,
GTK_STYLE_PROVIDER(css_provider),
GTK_STYLE_PROVIDER_PRIORITY_USER);
if (GTK_IS_CONTAINER(w)) {
gtk_container_foreach (GTK_CONTAINER(w), (GtkCallback) sp_set_font_size_recursive, font);
}
g_object_unref(css_provider);
}
void
sp_set_font_size (GtkWidget *w, guint font)
{
sp_set_font_size_recursive (w, GUINT_TO_POINTER(font));
}
void
sp_set_font_size_smaller (GtkWidget *w)
{
PangoContext *pc = gtk_widget_get_pango_context (w);
PangoFontDescription* pfd = pango_context_get_font_description (pc);
guint size = pango_font_description_get_size (pfd);
sp_set_font_size_recursive (w, GUINT_TO_POINTER((int) (0.8*size)));
}
/**
* 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 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 :
|
