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-rw-r--r--libs/canvas/canvas/text.h71
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diff --git a/libs/canvas/canvas/text.h b/libs/canvas/canvas/text.h
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+/*
+ Copyright (C) 2011-2013 Paul Davis
+ Author: Carl Hetherington <cth@carlh.net>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifndef __ardour_canvas_text_h__
+#define __ardour_canvas_text_h__
+
+#include <pangomm/fontdescription.h>
+#include <pangomm/layout.h>
+
+#include "canvas/visibility.h"
+#include "canvas/item.h"
+
+namespace ArdourCanvas {
+
+class LIBCANVAS_API Text : public Item
+{
+public:
+ Text (Group *);
+ ~Text();
+
+ void render (Rect const &, Cairo::RefPtr<Cairo::Context>) const;
+ void compute_bounding_box () const;
+
+ void set (std::string const &);
+ void set_color (uint32_t);
+ void set_font_description (Pango::FontDescription);
+ void set_alignment (Pango::Alignment);
+
+ void clamp_width (double);
+
+ void set_size_chars (int nchars);
+ void dump (std::ostream&) const;
+
+ std::string text() const { return _text; }
+
+private:
+ std::string _text;
+ uint32_t _color;
+ Pango::FontDescription* _font_description;
+ Pango::Alignment _alignment;
+ mutable Cairo::RefPtr<Cairo::ImageSurface> _image;
+ mutable Duple _origin;
+ mutable double _width;
+ mutable double _height;
+ mutable bool _need_redraw;
+ double _clamped_width;
+
+ void redraw (Cairo::RefPtr<Cairo::Context>) const;
+ void redraw (Glib::RefPtr<Pango::Context>) const;
+ void _redraw (Glib::RefPtr<Pango::Layout>) const;
+};
+
+}
+
+#endif /* __ardour_canvas_text_h__ */