1 /*
2 * Copyright (C) 2005-2007 Authors:
3 * Ted Gould <ted@gould.cx>
4 * Johan Engelen <johan@shouraizou.nl> *
5 * Released under GNU GPL, read the file 'COPYING' for more information
6 */
8 #ifdef HAVE_CONFIG_H
9 # include "config.h"
10 #endif
12 #include <gtkmm/adjustment.h>
13 #include <gtkmm/box.h>
14 #include <gtkmm/spinbutton.h>
16 #include "xml/node.h"
17 #include "extension/extension.h"
18 #include "preferences.h"
19 #include "int.h"
21 namespace Inkscape {
22 namespace Extension {
25 /** \brief Use the superclass' allocator and set the \c _value */
26 ParamInt::ParamInt (const gchar * name, const gchar * guitext, const gchar * desc, const Parameter::_scope_t scope, bool gui_hidden, const gchar * gui_tip, Inkscape::Extension::Extension * ext, Inkscape::XML::Node * xml) :
27 Parameter(name, guitext, desc, scope, gui_hidden, gui_tip, ext), _value(0), _min(0), _max(10)
28 {
29 const char * defaultval = NULL;
30 if (sp_repr_children(xml) != NULL)
31 defaultval = sp_repr_children(xml)->content();
32 if (defaultval != NULL) {
33 _value = atoi(defaultval);
34 }
36 const char * maxval = xml->attribute("max");
37 if (maxval != NULL)
38 _max = atoi(maxval);
40 const char * minval = xml->attribute("min");
41 if (minval != NULL)
42 _min = atoi(minval);
44 /* We're handling this by just killing both values */
45 if (_max < _min) {
46 _max = 10;
47 _min = 0;
48 }
50 gchar *pref_name = this->pref_name();
51 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
52 _value = prefs->getInt(extension_pref_root + pref_name, _value);
53 g_free(pref_name);
55 // std::cout << "New Int:: value: " << _value << " max: " << _max << " min: " << _min << std::endl;
57 if (_value > _max) _value = _max;
58 if (_value < _min) _value = _min;
60 return;
61 }
63 /** \brief A function to set the \c _value
64 \param in The value to set to
65 \param doc A document that should be used to set the value.
66 \param node The node where the value may be placed
68 This function sets the internal value, but it also sets the value
69 in the preferences structure. To put it in the right place, \c PREF_DIR
70 and \c pref_name() are used.
71 */
72 int
73 ParamInt::set (int in, SPDocument * /*doc*/, Inkscape::XML::Node * /*node*/)
74 {
75 _value = in;
76 if (_value > _max) _value = _max;
77 if (_value < _min) _value = _min;
79 gchar * prefname = this->pref_name();
80 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
81 prefs->setInt(extension_pref_root + prefname, _value);
82 g_free(prefname);
84 return _value;
85 }
87 /** \brief A class to make an adjustment that uses Extension params */
88 class ParamIntAdjustment : public Gtk::Adjustment {
89 /** The parameter to adjust */
90 ParamInt * _pref;
91 SPDocument * _doc;
92 Inkscape::XML::Node * _node;
93 sigc::signal<void> * _changeSignal;
94 public:
95 /** \brief Make the adjustment using an extension and the string
96 describing the parameter. */
97 ParamIntAdjustment (ParamInt * param, SPDocument * doc, Inkscape::XML::Node * node, sigc::signal<void> * changeSignal) :
98 Gtk::Adjustment(0.0, param->min(), param->max(), 1.0, 0), _pref(param), _doc(doc), _node(node), _changeSignal(changeSignal) {
99 this->set_value(_pref->get(NULL, NULL) /* \todo fix */);
100 this->signal_value_changed().connect(sigc::mem_fun(this, &ParamIntAdjustment::val_changed));
101 return;
102 };
104 void val_changed (void);
105 }; /* class ParamIntAdjustment */
107 /** \brief A function to respond to the value_changed signal from the
108 adjustment.
110 This function just grabs the value from the adjustment and writes
111 it to the parameter. Very simple, but yet beautiful.
112 */
113 void
114 ParamIntAdjustment::val_changed (void)
115 {
116 //std::cout << "Value Changed to: " << this->get_value() << std::endl;
117 _pref->set((int)this->get_value(), _doc, _node);
118 if (_changeSignal != NULL) {
119 _changeSignal->emit();
120 }
121 return;
122 }
124 /**
125 \brief Creates a Int Adjustment for a int parameter
127 Builds a hbox with a label and a int adjustment in it.
128 */
129 Gtk::Widget *
130 ParamInt::get_widget (SPDocument * doc, Inkscape::XML::Node * node, sigc::signal<void> * changeSignal)
131 {
132 if (_gui_hidden) return NULL;
134 Gtk::HBox * hbox = Gtk::manage(new Gtk::HBox(false, 4));
136 Gtk::Label * label = Gtk::manage(new Gtk::Label(_(_text), Gtk::ALIGN_LEFT));
137 label->show();
138 hbox->pack_start(*label, true, true);
140 ParamIntAdjustment * fadjust = Gtk::manage(new ParamIntAdjustment(this, doc, node, changeSignal));
141 Gtk::SpinButton * spin = Gtk::manage(new Gtk::SpinButton(*fadjust, 1.0, 0));
142 spin->show();
143 hbox->pack_start(*spin, false, false);
145 hbox->show();
147 return dynamic_cast<Gtk::Widget *>(hbox);
148 }
150 /** \brief Return the value as a string */
151 void
152 ParamInt::string (std::string &string)
153 {
154 char startstring[32];
155 sprintf(startstring, "%d", _value);
156 string += startstring;
157 return;
158 }
160 } /* namespace Extension */
161 } /* namespace Inkscape */
163 /*
164 Local Variables:
165 mode:c++
166 c-file-style:"stroustrup"
167 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
168 indent-tabs-mode:nil
169 fill-column:99
170 End:
171 */
172 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :