1 files changed, 155 insertions, 0 deletions
diff --git a/src/extension/template.h b/src/extension/template.h
new file mode 100644
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--- /dev/null
+++ b/src/extension/template.h
@@ -0,0 +1,155 @@
+// 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.
+ */
+
+#ifndef INKSCAPE_EXTENSION_TEMPLATE_H__
+#define INKSCAPE_EXTENSION_TEMPLATE_H__
+
+#include <exception>
+#include <giomm/file.h>
+#include <glibmm.h>
+#include <glibmm/fileutils.h>
+#include <map>
+#include <string>
+
+#include "extension/db.h"
+#include "extension/extension.h"
+#include "util/units.h"
+
+class SPDocument;
+class SPPage;
+
+namespace Inkscape {
+namespace Extension {
+
+using TemplateShow = int;
+enum TemplateVisibility : TemplateShow {
+    TEMPLATE_ANY = -1, // Any visibility
+    TEMPLATE_HIDDEN = 0,
+    TEMPLATE_NEW_FROM = 1,
+    TEMPLATE_NEW_WELCOME = 2,
+    TEMPLATE_NEW_ICON = 3,
+    TEMPLATE_SIZE_LIST = 4,
+    TEMPLATE_SIZE_SEARCH = 8,
+    TEMPLATE_ALL = 255 // Set as visible everywhere
+};
+
+class Template;
+class TemplatePreset;
+typedef std::map<std::string, std::string> TemplatePrefs;
+typedef std::vector<std::shared_ptr<TemplatePreset>> TemplatePresets;
+
+class TemplatePreset
+{
+public:
+    TemplatePreset(Template *mod, const Inkscape::XML::Node *repr, TemplatePrefs prefs = {}, int priority = 0);
+    ~TemplatePreset() {};
+
+    std::string get_key() const { return _key; }
+    std::string get_icon() const { return _icon; }
+    std::string get_name() const;
+    std::string get_label() const;
+    int get_sort_priority() const { return _priority; }
+    int get_visibility() const { return _visibility; }
+
+    bool is_visible(TemplateShow mode) {
+        // Not hidden and contains the requested mode.
+        return _visibility && (mode == TEMPLATE_ANY
+            || ((_visibility & (int)mode) == (int)mode));
+    }
+
+    SPDocument *new_from_template(const TemplatePrefs &others = {});
+    void resize_to_template(SPDocument *doc, SPPage *page, const TemplatePrefs &others = {});
+    bool match_size(double width, double height, const TemplatePrefs &others = {});
+
+    Glib::ustring get_icon_path() const;
+
+private:
+    Template *_mod;
+
+protected:
+    std::string _key;
+    std::string _icon;
+    std::string _name;
+    std::string _label;
+    int _priority;
+    int _visibility;
+
+    // This is a set of preferences given to the extension
+    TemplatePrefs _prefs;
+
+    Glib::ustring _get_icon_path(const std::string &name) const;
+    bool setup_prefs(const TemplatePrefs &others = {});
+    void _add_prefs(const TemplatePrefs &prefs);
+};
+
+class Template : public Extension
+{
+public:
+    struct create_cancelled : public std::exception
+    {
+        ~create_cancelled() noexcept override = default;
+        const char *what() const noexcept override { return "Create was cancelled"; }
+    };
+
+    Template(Inkscape::XML::Node *in_repr, Implementation::Implementation *in_imp, std::string *base_directory);
+    ~Template() override = default;
+
+    bool check() override;
+
+    SPDocument *new_from_template();
+    void resize_to_template(SPDocument *doc, SPPage *page);
+
+    std::string get_icon() const { return _icon; }
+    std::string get_description() const { return _desc; }
+    std::string get_category() const { return _category; }
+
+    bool can_resize() const { return _can_resize; }
+    int get_visibility() const { return _visibility; }
+
+    TemplatePresets get_presets(TemplateShow visibility = TEMPLATE_ANY) const;
+
+    std::shared_ptr<TemplatePreset> get_preset(const std::string &key);
+    std::shared_ptr<TemplatePreset> get_preset(double width, double height);
+    static std::shared_ptr<TemplatePreset> get_any_preset(const std::string &key);
+    static std::shared_ptr<TemplatePreset> get_any_preset(double width, double height);
+
+    Glib::RefPtr<Gio::File> get_template_filename() const;
+    SPDocument *get_template_document() const;
+
+protected:
+    friend class TemplatePreset;
+
+    static int parse_visibility(const std::string &value);
+private:
+    std::string _source;
+    std::string _icon;
+    std::string _desc;
+    std::string _category;
+
+    bool _can_resize = false; // Can this be used to resize existing pages?
+    int _visibility = TEMPLATE_SIZE_SEARCH;
+
+    TemplatePresets _presets;
+};
+
+} // namespace Extension
+} // namespace Inkscape
+#endif /* INKSCAPE_EXTENSION_TEMPLATE_H__ */
+
+/*
+  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 :