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// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
* Description widget for extensions
*//*
* Authors:
* Ted Gould <ted@gould.cx>
* Johan Engelen <johan@shouraizou.nl> *
* Patrick Storz <eduard.braun2@gmx.de>
*
* Copyright (C) 2005-2019 Authors
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include "widget-label.h"
#include <gtkmm/box.h>
#include <gtkmm/label.h>
#include <glibmm/markup.h>
#include <glibmm/regex.h>
#include "xml/node.h"
#include "extension/extension.h"
namespace Inkscape {
namespace Extension {
WidgetLabel::WidgetLabel(Inkscape::XML::Node *xml, Inkscape::Extension::Extension *ext)
: InxWidget(xml, ext)
{
// construct the text content by concatenating all (non-empty) text nodes,
// removing all other nodes (e.g. comment nodes) and replacing <extension:br> elements with "<br/>"
Inkscape::XML::Node * cur_child = xml->firstChild();
while (cur_child != nullptr) {
if (cur_child->type() == XML::NodeType::TEXT_NODE && cur_child->content() != nullptr) {
_value += cur_child->content();
} else if (cur_child->type() == XML::NodeType::ELEMENT_NODE && !g_strcmp0(cur_child->name(), "extension:br")) {
_value += "<br/>";
}
cur_child = cur_child->next();
}
// do replacements in the source string to account for the attribute xml:space="preserve"
// (those should match replacements potentially performed by xgettext to allow for proper translation)
if (g_strcmp0(xml->attribute("xml:space"), "preserve") == 0) {
// xgettext copies the source string verbatim in this case, so no changes needed
} else {
// remove all whitespace from start/end of string and replace intermediate whitespace with a single space
_value = Glib::Regex::create("^\\s+|\\s+$")->replace_literal(_value, 0, "", (Glib::RegexMatchFlags)0);
_value = Glib::Regex::create("\\s+")->replace_literal(_value, 0, " ", (Glib::RegexMatchFlags)0);
}
// translate value
if (!_value.empty()) {
if (_translatable != NO) { // translate unless explicitly marked untranslatable
_value = get_translation(_value.c_str());
}
}
// finally replace all remaining <br/> with a real newline character
_value = Glib::Regex::create("<br/>")->replace_literal(_value, 0, "\n", (Glib::RegexMatchFlags)0);
// parse appearance
if (_appearance) {
if (!strcmp(_appearance, "header")) {
_mode = HEADER;
} else if (!strcmp(_appearance, "url")) {
_mode = URL;
} else {
g_warning("Invalid value ('%s') for appearance of label widget in extension '%s'",
_appearance, _extension->get_id());
}
}
}
/** \brief Create a label for the description */
Gtk::Widget *WidgetLabel::get_widget(sigc::signal<void ()> * /*changeSignal*/)
{
if (_hidden) {
return nullptr;
}
Glib::ustring newtext = _value;
Gtk::Label *label = Gtk::manage(new Gtk::Label());
if (_mode == HEADER) {
label->set_markup(Glib::ustring("<b>") + Glib::Markup::escape_text(newtext) + Glib::ustring("</b>"));
label->set_margin_top(5);
label->set_margin_bottom(5);
} else if (_mode == URL) {
Glib::ustring escaped_url = Glib::Markup::escape_text(newtext);
label->set_markup(Glib::ustring::compose("<a href='%1'>%1</a>", escaped_url));
} else {
label->set_text(newtext);
}
label->set_line_wrap();
label->set_xalign(0);
// TODO: Ugly "fix" for gtk3 width/height calculation of labels.
// - If not applying any limits long labels will make the window grow horizontally until it uses up
// most of the available space (i.e. most of the screen area) which is ridiculously wide.
// - By using "set_default_size(0,0)" in prefidalog.cpp we tell the window to shrink as much as possible,
// however this can result in a much too narrow dialog instead and a lot of unnecessary wrapping.
// - Here we set a lower limit of GUI_MAX_LINE_LENGTH characters per line that long texts will always use.
// This means texts can not shrink anymore (they can still grow, though) and it's also necessary
// to prevent https://bugzilla.gnome.org/show_bug.cgi?id=773572
int len = newtext.length();
label->set_width_chars(len > GUI_MAX_LINE_LENGTH ? GUI_MAX_LINE_LENGTH : len);
label->show();
Gtk::Box *hbox = Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_HORIZONTAL));
hbox->pack_start(*label, true, true);
hbox->show();
return hbox;
}
} /* namespace Extension */
} /* namespace Inkscape */
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