1 files changed, 178 insertions, 0 deletions
diff --git a/src/extension/prefdialog/widget.cpp b/src/extension/prefdialog/widget.cpp
new file mode 100644
index 0000000..18639c5
--- /dev/null
+++ b/src/extension/prefdialog/widget.cpp
@@ -0,0 +1,178 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/** @file
+ * Parameters for extensions.
+ *//*
+ * Author:
+ *   Patrick Storz <eduard.braun2@gmx.de>
+ *
+ * Copyright (C) 2019 Authors
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include "parameter.h"
+#include "widget.h"
+#include "widget-box.h"
+#include "widget-image.h"
+#include "widget-label.h"
+#include "widget-separator.h"
+#include "widget-spacer.h"
+
+#include <algorithm>
+#include <cstring>
+
+#include <sigc++/sigc++.h>
+
+#include "extension/extension.h"
+
+#include "xml/node.h"
+
+
+namespace Inkscape {
+namespace Extension {
+
+InxWidget *InxWidget::make(Inkscape::XML::Node *in_repr, Inkscape::Extension::Extension *in_ext)
+{
+    InxWidget *widget = nullptr;
+
+    const char *name = in_repr->name();
+    if (!strncmp(name, INKSCAPE_EXTENSION_NS_NC, strlen(INKSCAPE_EXTENSION_NS_NC))) {
+        name += strlen(INKSCAPE_EXTENSION_NS);
+    }
+    if (name[0] == '_') { // allow leading underscore in tag names for backwards-compatibility
+        name++;
+    }
+
+    // decide on widget type based on tag name
+    // keep in sync with list of names supported in InxWidget::is_valid_widget_name() below
+    if (!name) {
+        // we can't create a widget without name
+        g_warning("InxWidget without name in extension '%s'.", in_ext->get_id());
+    } else if (!strcmp(name, "hbox") || !strcmp(name, "vbox")) {
+        widget = new WidgetBox(in_repr, in_ext);
+    } else if (!strcmp(name, "image")) {
+        widget = new WidgetImage(in_repr, in_ext);
+    } else if (!strcmp(name, "label")) {
+        widget = new WidgetLabel(in_repr, in_ext);
+    } else if (!strcmp(name, "separator")) {
+        widget = new WidgetSeparator(in_repr, in_ext);
+    } else if (!strcmp(name, "spacer")) {
+        widget = new WidgetSpacer(in_repr, in_ext);
+    } else if (!strcmp(name, "param")) {
+        widget = InxParameter::make(in_repr, in_ext);
+    } else {
+        g_warning("Unknown widget name ('%s') in extension '%s'", name, in_ext->get_id());
+    }
+
+    // Note: widget could equal nullptr
+    return widget;
+}
+
+bool InxWidget::is_valid_widget_name(const char *name)
+{
+    // keep in sync with names supported in InxWidget::make() above
+    static const std::vector<std::string> valid_names =
+        {"hbox", "vbox", "image", "label", "separator", "spacer", "param"};
+
+    if (std::find(valid_names.begin(), valid_names.end(), name) != valid_names.end()) {
+        return true;
+    } else {
+        return false;
+    }
+}
+
+
+InxWidget::InxWidget(Inkscape::XML::Node *in_repr, Inkscape::Extension::Extension *ext)
+    : _extension(ext)
+{
+    // translatable (optional)
+    const char *translatable = in_repr->attribute("translatable");
+    if (translatable) {
+        if (!strcmp(translatable, "yes")) {
+            _translatable = YES;
+        } else if (!strcmp(translatable, "no"))  {
+            _translatable = NO;
+        } else {
+            g_warning("Invalid value ('%s') for translatable attribute of widget '%s' in extension '%s'",
+                      translatable, in_repr->name(), _extension->get_id());
+        }
+    }
+
+    // context (optional)
+    const char *context = in_repr->attribute("context");
+    if (!context) {
+        context = in_repr->attribute("msgctxt"); // backwards-compatibility with previous name
+    }
+    if (context) {
+        _context = g_strdup(context);
+    }
+
+    // gui-hidden (optional)
+    const char *gui_hidden = in_repr->attribute("gui-hidden");
+    if (gui_hidden != nullptr) {
+        if (strcmp(gui_hidden, "true") == 0) {
+            _hidden = true;
+        }
+    }
+
+    // indent (optional)
+    const char *indent = in_repr->attribute("indent");
+    if (indent != nullptr) {
+        _indent = strtol(indent, nullptr, 0);
+    }
+
+    // appearance (optional, does not apply to all parameters)
+    const char *appearance = in_repr->attribute("appearance");
+    if (appearance) {
+        _appearance = g_strdup(appearance);
+    }
+}
+
+InxWidget::~InxWidget()
+{
+    for (auto child : _children) {
+        delete child;
+    }
+
+    g_free(_context);
+    _context = nullptr;
+
+    g_free(_appearance);
+    _appearance = nullptr;
+}
+
+Gtk::Widget *
+InxWidget::get_widget(sigc::signal<void> * /*changeSignal*/)
+{
+    // if we end up here we're missing a definition of ::get_widget() in one of the subclasses
+    g_critical("InxWidget::get_widget called from widget of type '%s' in extension '%s'",
+               typeid(this).name(), _extension->get_id());
+    g_assert_not_reached();
+    return nullptr;
+}
+
+const char *InxWidget::get_translation(const char* msgid) {
+    return _extension->get_translation(msgid, _context);
+}
+
+void InxWidget::get_widgets(std::vector<InxWidget *> &list)
+{
+    list.push_back(this);
+    for (auto child : _children) {
+        child->get_widgets(list);
+    }
+}
+
+}  // namespace Extension
+}  // 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 :