Merge windows+cc branch into cairocanvas branch. Not finished, need to now merge...

[ardour.git] / libs / canvas / canvas / text.h

diff --git a/libs/canvas/canvas/text.h b/libs/canvas/canvas/text.h
index 08e2a469a7a2513333a34d263367117378e57aed..59d2007ceba17d30828d9f2874eaac3318b70e2d 100644 (file)
--- a/libs/canvas/canvas/text.h
+++ b/libs/canvas/canvas/text.h
@@ -1,14 +1,34 @@
+/*
+    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 Text : public Item
+class LIBCANVAS_API Text : public Item
 {
 public:
        Text (Group *);
@@ -16,21 +36,34 @@ public:
 
        void render (Rect const &, Cairo::RefPtr<Cairo::Context>) const;
        void compute_bounding_box () const;
-       XMLNode* get_state () const;
-       void set_state (XMLNode 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:
-       Glib::RefPtr<Pango::Layout> layout (Cairo::RefPtr<Cairo::Context>) const;
-       
-       std::string _text;
+       std::string      _text;
+       uint32_t         _color;
        Pango::FontDescription* _font_description;
-       uint32_t _color;
        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;
 };
 
 }