new class for widgets adjustable by rotation-like gestures

(bzr r3949)

1 files changed, 66 insertions, 0 deletions

diff --git a/src/ui/widget/rotateable.h b/src/ui/widget/rotateable.h
new file mode 100644
index 000000000..65f3c598c
--- /dev/null
+++ b/src/ui/widget/rotateable.h
@@ -0,0 +1,66 @@
+/**
+ * \brief widget adjustable by dragging it to rotate away from a zero-change axis
+ *
+ * Authors:
+ *   buliabyak@gmail.com
+ *
+ * Copyright (C) 2007 authors
+ *
+ * Released under GNU GPL.  Read the file 'COPYING' for more information.
+ */
+
+#ifndef INKSCAPE_UI_ROTATEABLE_H
+#define INKSCAPE_UI_ROTATEABLE_H
+
+#include <gtkmm/box.h>
+#include <gtkmm/eventbox.h>
+#include <glibmm/i18n.h>
+
+namespace Inkscape {
+namespace UI {
+namespace Widget {
+
+class Rotateable: public Gtk::EventBox
+{
+public:
+	Rotateable();
+
+	~Rotateable();
+
+  bool on_click(GdkEventButton *event);
+  bool on_motion(GdkEventMotion *event);
+  bool on_release(GdkEventButton *event);
+
+	double axis; 
+	double current_axis; 
+  double maxdecl; 
+
+private:
+  double drag_started_x;
+  double drag_started_y;
+	guint modifier;
+	bool dragging;
+	bool working;
+
+  guint get_single_modifier(guint old, guint state);
+
+	virtual void do_motion (double by, guint state) {}
+	virtual void do_release (double by, guint state) {}
+};
+
+} // namespace Widget
+} // namespace UI
+} // namespace Inkscape
+
+#endif // INKSCAPE_UI_ROTATEABLE_H
+
+/* 
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=c++:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :