1 files changed, 45 insertions, 0 deletions
diff --git a/src/ui/svg-renderer.h b/src/ui/svg-renderer.h
new file mode 100644
index 0000000..b586ea9
--- /dev/null
+++ b/src/ui/svg-renderer.h
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#ifndef SEEN_SVG_RENDERER_H
+#define SEEN_SVG_RENDERER_H
+
+#include <gtkmm.h>
+#include <gdkmm/rgba.h>
+
+#include "document.h"
+#include "color.h"
+
+namespace Inkscape {
+
+// utilities for set_style: 
+// Gdk color to CSS rgb (no alpha)
+Glib::ustring rgba_to_css_color(const Gdk::RGBA& color);
+Glib::ustring rgba_to_css_color(const SPColor& color);
+// double to low precision string
+Glib::ustring double_to_css_value(double value);
+class Pixbuf;
+
+class svg_renderer
+{
+public:
+    // load SVG document from file (abs path)
+    svg_renderer(const char* svg_file_path);
+
+    // set inline style on selected elements; return number of elements modified
+    size_t set_style(const Glib::ustring& selector, const char* name, const Glib::ustring& value);
+
+    // render document at given scale
+    Glib::RefPtr<Gdk::Pixbuf> render(double scale);
+    Cairo::RefPtr<Cairo::Surface> render_surface(double scale);
+
+    double get_width_px() const;
+    double get_height_px() const;
+
+private:
+    Pixbuf* do_render(double scale);
+    std::unique_ptr<SPDocument> _document;
+    SPRoot* _root = nullptr;
+};
+
+}
+
+#endif