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
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
|
/** \file
* extension parameter for radiobuttons.
*
* It uses a Gtk:ComboBoxText widget in the extension UI.
*/
/*
* Author:
* Johan Engelen <johan@shouraizou.nl>
*
* Copyright (C) 2006-2007 Johan Engelen
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <gtkmm/box.h>
#include <gtkmm/radiobutton.h>
#include <gtkmm/radiobuttongroup.h>
#include <gtkmm/tooltips.h>
#include <gtkmm/label.h>
#include <glibmm/i18n.h>
#include <xml/node.h>
#include "extension.h"
#include "prefs-utils.h"
#include "document-private.h"
#include "sp-object.h"
#include "paramradiobutton.h"
/** \brief The root directory in the preferences database for extension
related parameters. */
#define PREF_DIR "extensions"
namespace Inkscape {
namespace Extension {
/* For internal use only.
Note that value and guitext MUST be non-NULL. This is ensured by newing only at one location in the code where non-NULL checks are made. */
class optionentry {
public:
optionentry (Glib::ustring * val, Glib::ustring * text) {
value = val;
guitext = text;
}
~optionentry() {
delete value;
delete guitext;
}
Glib::ustring * value;
Glib::ustring * guitext;
};
ParamRadioButton::ParamRadioButton (const gchar * name, const gchar * guitext, const gchar * desc, const Parameter::_scope_t scope, Inkscape::Extension::Extension * ext, Inkscape::XML::Node * xml) :
Parameter(name, guitext, desc, scope, ext)
{
choices = NULL;
_value = NULL;
// Read XML tree to add enumeration items:
// printf("Extension Constructor: ");
if (xml != NULL) {
Inkscape::XML::Node *child_repr = sp_repr_children(xml);
while (child_repr != NULL) {
char const * chname = child_repr->name();
if (!strcmp(chname, "option")) {
Glib::ustring * newguitext = NULL;
Glib::ustring * newvalue = NULL;
const char * contents = sp_repr_children(child_repr)->content();
if (contents != NULL)
newguitext = new Glib::ustring(contents);
else
continue;
const char * val = child_repr->attribute("value");
if (val != NULL)
newvalue = new Glib::ustring(val);
else
newvalue = new Glib::ustring(*newguitext);
if ( (newguitext) && (newvalue) ) { // logical error if this is not true here
choices = g_slist_append( choices, new optionentry(newvalue, newguitext) );
}
}
child_repr = sp_repr_next(child_repr);
}
}
// Initialize _value with the default value from xml
// for simplicity : default to the contents of the first xml-child
const char * defaultval = NULL;
if (choices)
defaultval = ((optionentry*) choices->data)->value->c_str();
gchar * pref_name = this->pref_name();
const gchar * paramval = prefs_get_string_attribute(PREF_DIR, pref_name);
g_free(pref_name);
if (paramval != NULL)
defaultval = paramval;
if (defaultval != NULL)
_value = g_strdup(defaultval); // allocate space for _value
return;
}
ParamRadioButton::~ParamRadioButton (void)
{
//destroy choice strings
for (GSList * list = choices; list != NULL; list = g_slist_next(list)) {
delete (reinterpret_cast<optionentry *>(list->data));
}
g_slist_free(choices);
g_free(_value);
}
/** \brief A function to set the \c _value
\param in The value to set
\param doc A document that should be used to set the value.
\param node The node where the value may be placed
This function sets ONLY the internal value, but it also sets the value
in the preferences structure. To put it in the right place, \c PREF_DIR
and \c pref_name() are used.
To copy the data into _value the old memory must be free'd first.
It is important to note that \c g_free handles \c NULL just fine. Then
the passed in value is duplicated using \c g_strdup().
*/
const gchar *
ParamRadioButton::set (const gchar * in, SPDocument * doc, Inkscape::XML::Node * node)
{
if (in == NULL) return NULL; /* Can't have NULL string */
Glib::ustring * settext = NULL;
for (GSList * list = choices; list != NULL; list = g_slist_next(list)) {
optionentry * entr = reinterpret_cast<optionentry *>(list->data);
if ( !entr->guitext->compare(in) ) {
settext = entr->value;
break; // break out of for loop
}
}
if (settext) {
if (_value != NULL) g_free(_value);
_value = g_strdup(settext->c_str());
gchar * prefname = this->pref_name();
prefs_set_string_attribute(PREF_DIR, prefname, _value);
g_free(prefname);
}
return _value;
}
/**
\brief A function to get the current value of the parameter in a string form
\return A string with the 'value' as command line argument
*/
Glib::ustring *
ParamRadioButton::string (void)
{
Glib::ustring * param_string = new Glib::ustring("");
*param_string += _value;
return param_string;
}
/** \brief A special radiobutton class to use in ParamRadioButton */
class ParamRadioButtonWdg : public Gtk::RadioButton {
private:
ParamRadioButton * _pref;
SPDocument * _doc;
Inkscape::XML::Node * _node;
public:
/** \brief Build a string preference for the given parameter
\param pref Where to put the radiobutton's string when it is selected.
*/
ParamRadioButtonWdg ( Gtk::RadioButtonGroup& group, const Glib::ustring& label,
ParamRadioButton * pref, SPDocument * doc, Inkscape::XML::Node * node ) :
Gtk::RadioButton(group, label), _pref(pref), _doc(doc), _node(node) {
add_changesignal();
};
ParamRadioButtonWdg ( const Glib::ustring& label,
ParamRadioButton * pref, SPDocument * doc, Inkscape::XML::Node * node ) :
Gtk::RadioButton(label), _pref(pref), _doc(doc), _node(node) {
add_changesignal();
};
void add_changesignal() {
this->signal_toggled().connect(sigc::mem_fun(this, &ParamRadioButtonWdg::changed));
};
void changed (void);
};
/** \brief Respond to the selected radiobutton changing
This function responds to the radiobutton selection changing by grabbing the value
from the text box and putting it in the parameter.
*/
void
ParamRadioButtonWdg::changed (void)
{
if (this->get_active()) {
Glib::ustring data = this->get_label();
_pref->set(data.c_str(), _doc, _node);
}
}
/**
\brief Creates a combobox widget for an enumeration parameter
*/
Gtk::Widget *
ParamRadioButton::get_widget (SPDocument * doc, Inkscape::XML::Node * node, sigc::signal<void> * changeSignal)
{
Gtk::HBox * hbox = Gtk::manage(new Gtk::HBox(false, 4));
Gtk::VBox * vbox = Gtk::manage(new Gtk::VBox(false, 0));
Gtk::Label * label = Gtk::manage(new Gtk::Label(_(_text), Gtk::ALIGN_LEFT, Gtk::ALIGN_TOP));
label->show();
hbox->pack_start(*label, false, false);
// add choice strings as radiobuttons
// and select last selected option (_value)
bool first = true;
ParamRadioButtonWdg * radio;
Gtk::RadioButtonGroup group;
for (GSList * list = choices; list != NULL; list = g_slist_next(list)) {
optionentry * entr = reinterpret_cast<optionentry *>(list->data);
Glib::ustring * text = entr->guitext;
if (first) {
radio = Gtk::manage(new ParamRadioButtonWdg(*text, this, doc, node));
group = radio->get_group();
first = false;
} else {
radio = Gtk::manage(new ParamRadioButtonWdg(group, *text, this, doc, node));
}
radio->show();
vbox->pack_start(*radio, true, true);
if (!entr->value->compare(_value)) {
radio->set_active();
}
}
vbox->show();
hbox->pack_end(*vbox, false, false);
hbox->show();
return dynamic_cast<Gtk::Widget *>(hbox);
}
} /* namespace Extension */
} /* namespace Inkscape */
|
