add api and input modules for the livecoding tool

1 files changed, 101 insertions, 0 deletions

diff --git a/src/livecode/api.h b/src/livecode/api.h
new file mode 100644
index 000000000..d2974a01d
--- /dev/null
+++ b/src/livecode/api.h
@@ -0,0 +1,101 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#ifndef INK_LIVECODE_API_H
+#define INK_LIVECODE_API_H
+
+/*
+ * API for the livecoding script language
+ *
+ * Authors:
+ *   Sol Bekic <s+inkscape@s-ol.nu>
+ * Copyright (C) 2019 Authors
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include <cstddef>
+#include <2geom/point.h>
+#include <2geom/rect.h>
+#include <gdk/gdk.h>
+
+#include "xml/repr.h"
+#include "desktop.h"
+#include "livecode/input.h"
+
+
+class SPDocument;
+class SPItem;
+
+namespace Inkscape {
+namespace Livecode {
+
+class Mouse;
+
+class API {
+public:
+    API(SPDesktop *desktop);
+    ~API();
+
+    Inkscape::XML::Node *make_rect(Geom::Rect const &rect, SPCSSAttr *css = nullptr);
+    Inkscape::XML::Node *make_line(Geom::Point const &p1, Geom::Point const &p2, SPCSSAttr *css = nullptr);
+    Inkscape::XML::Node *make_path(Glib::ustring d, Geom::Point const &pos = Geom::Point(), SPCSSAttr *css = nullptr);
+    Inkscape::XML::Node *make_arrow(Geom::Point const &from, Geom::Point const &to, SPCSSAttr *css = nullptr);
+   
+    bool input_point(Glib::ustring const &id, Geom::Point *point);
+    bool input_line(Glib::ustring const &id, Geom::Point *p1, Geom::Point *p2);
+    bool input_arrow(Glib::ustring const &id, Geom::Point *from, Geom::Point *to);
+    bool input_rect(Glib::ustring const &id, Geom::Rect *rect);
+
+    void draw_doc(Glib::ustring const &id, Inkscape::XML::Node *item);
+    void draw_ui(Glib::ustring const &id, Inkscape::XML::Node *item);
+
+    void push_event(GdkEvent *event);
+    void setup_frame();
+    void finish_frame();
+
+    inline Geom::Affine ui2dt() const {
+      return doc_root->i2doc_affine();
+    }
+    inline Geom::Affine dt2ui() const {
+      return ui2dt().inverse();
+    }
+
+    inline Geom::Affine ui2doc() const {
+      return desktop->w2d();
+    }
+    inline Geom::Affine doc2ui() const {
+      return ui2doc().inverse();
+    }
+    inline Geom::Affine ui2doc_vec() const {
+      return desktop->w2d().withoutTranslation();
+    }
+    inline Geom::Affine doc2ui_vec() const {
+      return ui2doc_vec().inverse();
+    }
+
+    Mouse const &mouse();
+
+private:
+    SPDesktop *desktop;
+    SPItem *doc_root, *ui_root;
+
+    Mouse _mouse;
+
+    Glib::ustring hot, active;
+    std::vector<SPItem *> drawn_items;
+};
+
+}
+}
+
+#endif // INK_LIVECODE_API_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:fileencoding=utf-8:textwidth=99 :