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// SPDX-License-Identifier: GPL-2.0-or-later
/* Authors:
* Martin Owens <doctormo@geek-2.com>
*
* Copyright (C) 2022 Authors
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include "template-list.h"
#include <glibmm/i18n.h>
#include "extension/db.h"
#include "extension/template.h"
#include "inkscape-application.h"
#include "io/resource.h"
#include "ui/util.h"
#include "ui/icon-loader.h"
#include "ui/svg-renderer.h"
using namespace Inkscape::IO::Resource;
using Inkscape::Extension::TemplatePreset;
namespace Inkscape {
namespace UI {
namespace Widget {
class TemplateCols : public Gtk::TreeModel::ColumnRecord
{
public:
// These types must match those for the model in the .glade file
TemplateCols()
{
this->add(this->name);
this->add(this->label);
this->add(this->icon);
this->add(this->key);
}
Gtk::TreeModelColumn<Glib::ustring> name;
Gtk::TreeModelColumn<Glib::ustring> label;
Gtk::TreeModelColumn<Glib::RefPtr<Gdk::Pixbuf>> icon;
Gtk::TreeModelColumn<Glib::ustring> key;
};
TemplateList::TemplateList() {}
TemplateList::TemplateList(BaseObjectType *cobject, const Glib::RefPtr<Gtk::Builder> &refGlade)
: Gtk::Notebook(cobject)
{
TemplateList();
}
/**
* Initialise this template list with categories and icons
*/
void TemplateList::init(Inkscape::Extension::TemplateShow mode)
{
TemplateCols cols;
std::map<std::string, Glib::RefPtr<Gtk::ListStore>> _stores;
Inkscape::Extension::DB::TemplateList extensions;
Inkscape::Extension::db.get_template_list(extensions);
for (auto tmod : extensions) {
std::string cat = tmod->get_category();
if (!_stores.count(cat)) {
try {
_stores[cat] = this->generate_category(cat);
_stores[cat]->clear();
} catch (UIBuilderError &e) {
return;
}
}
for (auto preset : tmod->get_presets(mode)) {
Gtk::TreeModel::Row row = *(_stores[cat]->append());
auto name = preset->get_name();
row[cols.name] = name.empty() ? "" : _(name.c_str());
row[cols.icon] = icon_to_pixbuf(preset->get_icon_path());
auto label = preset->get_label();
row[cols.label] = label.empty() ? "" : _(label.c_str());
row[cols.key] = preset->get_key();
}
}
reset_selection();
}
/**
* Turn the requested template icon name into a pixbuf
*/
Glib::RefPtr<Gdk::Pixbuf> TemplateList::icon_to_pixbuf(std::string path)
{
// TODO: Add some caching here.
if (!path.empty()) {
Inkscape::svg_renderer renderer(path.c_str());
return renderer.render(1.0);
}
Glib::RefPtr<Gdk::Pixbuf> no_image;
return no_image;
}
/**
* Generate a new category with the given label and return it's list store.
*/
Glib::RefPtr<Gtk::ListStore> TemplateList::generate_category(std::string label)
{
static Glib::ustring uifile = get_filename(UIS, "widget-new-from-template.ui");
Glib::RefPtr<Gtk::Builder> builder;
try {
builder = Gtk::Builder::create_from_file(uifile);
} catch (const Glib::Error &ex) {
g_error("UI file loading failed for template list widget: %s", ex.what().c_str());
throw UIFileUnavailable();
}
Gtk::Widget *container = nullptr;
Gtk::IconView *icons = nullptr;
builder->get_widget("container", container);
builder->get_widget("iconview", icons);
if (!icons || !container) {
throw WidgetUnavailable();
}
// This packing keeps the Gtk widget alive, beyond the builder's lifetime
this->append_page(*container, g_dpgettext2(nullptr, "TemplateCategory", label.c_str()));
icons->signal_selection_changed().connect([=]() { _item_selected_signal.emit(); });
icons->signal_item_activated().connect([=](const Gtk::TreeModel::Path) { _item_activated_signal.emit(); });
return Glib::RefPtr<Gtk::ListStore>::cast_dynamic(icons->get_model());
}
/**
* Returns true if the template list has a visible, selected preset.
*/
bool TemplateList::has_selected_preset()
{
return (bool)get_selected_preset();
}
/**
* Returns the selected template preset, if one is not selected returns nullptr.
*/
std::shared_ptr<TemplatePreset> TemplateList::get_selected_preset()
{
TemplateCols cols;
if (auto iconview = get_iconview(get_nth_page(get_current_page()))) {
auto items = iconview->get_selected_items();
if (!items.empty()) {
auto iter = iconview->get_model()->get_iter(items[0]);
if (Gtk::TreeModel::Row row = *iter) {
Glib::ustring key = row[cols.key];
return Extension::Template::get_any_preset(key);
}
}
}
return nullptr;
}
/**
* Create a new document based on the selected item and return.
*/
SPDocument *TemplateList::new_document()
{
auto app = InkscapeApplication::instance();
if (auto preset = get_selected_preset()) {
if (auto doc = preset->new_from_template()) {
// TODO: Add memory to remember this preset for next time.
app->document_add(doc);
return doc;
} else {
// Cancel pressed in options box.
return nullptr;
}
}
// Fallback to the default template (already added)!
return app->document_new();
}
/**
* Reset the selection, forcing the use of the default template.
*/
void TemplateList::reset_selection()
{
// TODO: Add memory here for the new document default (see new_document).
for (auto widget : get_children()) {
if (auto iconview = get_iconview(widget)) {
iconview->unselect_all();
}
}
}
/**
* Returns the internal iconview for the given widget.
*/
Gtk::IconView *TemplateList::get_iconview(Gtk::Widget *widget)
{
if (auto container = dynamic_cast<Gtk::Container *>(widget)) {
for (auto child : container->get_children()) {
if (auto iconview = get_iconview(child)) {
return iconview;
}
}
}
return dynamic_cast<Gtk::IconView *>(widget);
}
} // namespace Widget
} // namespace UI
} // namespace Inkscape
/*
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 :
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