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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2005-2007 Authors:
* Ted Gould <ted@gould.cx>
* Johan Engelen <johan@shouraizou.nl> *
* Jon A. Cruz <jon@joncruz.org>
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include "parameter-string.h"
#include <gtkmm/box.h>
#include <gtkmm/entry.h>
#include <gtkmm/scrolledwindow.h>
#include <gtkmm/textview.h>
#include <glibmm/regex.h>
#include "xml/node.h"
#include "extension/extension.h"
#include "preferences.h"
namespace Inkscape {
namespace Extension {
ParamString::ParamString(Inkscape::XML::Node *xml, Inkscape::Extension::Extension *ext)
: InxParameter(xml, ext)
{
// get value
const char *value = nullptr;
if (xml->firstChild()) {
value = xml->firstChild()->content();
}
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
_value = prefs->getString(pref_name());
if (_value.empty() && value) {
_value = value;
}
// translate value
if (!_value.empty()) {
if (_translatable == YES) { // translate only if explicitly marked translatable
_value = get_translation(_value.c_str());
}
}
// max-length
const char *max_length = xml->attribute("max-length");
if (!max_length) {
max_length = xml->attribute("max_length"); // backwards-compatibility with old name (underscore)
}
if (max_length) {
_max_length = strtoul(max_length, nullptr, 0);
}
// parse appearance
if (_appearance) {
if (!strcmp(_appearance, "multiline")) {
_mode = MULTILINE;
} else {
g_warning("Invalid value ('%s') for appearance of parameter '%s' in extension '%s'",
_appearance, _name, _extension->get_id());
}
}
}
/**
* A function to set the \c _value.
*
* This function sets the internal value, but it also sets the value
* in the preferences structure. To put it in the right place \c pref_name() is 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().
*
* @param in The value to set to.
*/
const Glib::ustring& ParamString::set(const Glib::ustring in)
{
_value = in;
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
prefs->setString(pref_name(), _value);
return _value;
}
std::string ParamString::value_to_string() const
{
return _value.raw();
}
/** A special type of Gtk::Entry to handle string parameters. */
class ParamStringEntry : public Gtk::Entry {
private:
ParamString *_pref;
sigc::signal<void> *_changeSignal;
public:
/**
* Build a string preference for the given parameter.
* @param pref Where to get the string from, and where to put it
* when it changes.
*/
ParamStringEntry(ParamString *pref, sigc::signal<void> *changeSignal)
: Gtk::Entry()
, _pref(pref)
, _changeSignal(changeSignal)
{
this->set_text(_pref->get());
this->set_max_length(_pref->getMaxLength()); //Set the max length - default zero means no maximum
this->signal_changed().connect(sigc::mem_fun(this, &ParamStringEntry::changed_text));
};
void changed_text();
};
/**
* Respond to the text box changing.
*
* This function responds to the box changing by grabbing the value
* from the text box and putting it in the parameter.
*/
void ParamStringEntry::changed_text()
{
Glib::ustring data = this->get_text();
_pref->set(data.c_str());
if (_changeSignal != nullptr) {
_changeSignal->emit();
}
}
/** A special type of Gtk::TextView to handle multiline string parameters. */
class ParamMultilineStringEntry : public Gtk::TextView {
private:
ParamString *_pref;
sigc::signal<void> *_changeSignal;
public:
/**
* Build a string preference for the given parameter.
* @param pref Where to get the string from, and where to put it
* when it changes.
*/
ParamMultilineStringEntry(ParamString *pref, sigc::signal<void> *changeSignal)
: Gtk::TextView()
, _pref(pref)
, _changeSignal(changeSignal)
{
// replace literal '\n' with actual newlines for multiline strings
Glib::ustring value = Glib::Regex::create("\\\\n")->replace_literal(_pref->get(), 0, "\n", (Glib::RegexMatchFlags)0);
this->get_buffer()->set_text(value);
this->get_buffer()->signal_changed().connect(sigc::mem_fun(this, &ParamMultilineStringEntry::changed_text));
};
void changed_text();
};
/**
* Respond to the text box changing.
*
* This function responds to the box changing by grabbing the value
* from the text box and putting it in the parameter.
*/
void ParamMultilineStringEntry::changed_text()
{
Glib::ustring data = this->get_buffer()->get_text();
// always store newlines as literal '\n'
data = Glib::Regex::create("\n")->replace_literal(data, 0, "\\n", (Glib::RegexMatchFlags)0);
_pref->set(data.c_str());
if (_changeSignal != nullptr) {
_changeSignal->emit();
}
}
/**
* Creates a text box for the string parameter.
*
* Builds a hbox with a label and a text box in it.
*/
Gtk::Widget *ParamString::get_widget(sigc::signal<void> *changeSignal)
{
if (_hidden) {
return nullptr;
}
Gtk::Box *box = Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_HORIZONTAL, GUI_PARAM_WIDGETS_SPACING));
Gtk::Label *label = Gtk::manage(new Gtk::Label(_text, Gtk::ALIGN_START));
label->show();
box->pack_start(*label, false, false);
if (_mode == MULTILINE) {
box->set_orientation(Gtk::ORIENTATION_VERTICAL);
Gtk::ScrolledWindow *textarea = Gtk::manage(new Gtk::ScrolledWindow());
textarea->set_vexpand();
textarea->set_shadow_type(Gtk::SHADOW_IN);
ParamMultilineStringEntry *entry = Gtk::manage(new ParamMultilineStringEntry(this, changeSignal));
entry->show();
textarea->add(*entry);
textarea->show();
box->pack_start(*textarea, true, true);
} else {
Gtk::Widget *entry = Gtk::manage(new ParamStringEntry(this, changeSignal));
entry->show();
box->pack_start(*entry, true, true);
}
box->show();
return dynamic_cast<Gtk::Widget *>(box);
}
} /* namespace Extension */
} /* namespace Inkscape */
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