1 /* 2 * Copyright (C) 2012 Carl Hetherington <carl@carlh.net> 3 * Copyright (C) 2013-2016 Paul Davis <paul@linuxaudiosystems.com> 4 * Copyright (C) 2015-2017 Robin Gareus <robin@gareus.org> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License along 17 * with this program; if not, write to the Free Software Foundation, Inc., 18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 19 */ 20 21 #ifndef __ardour_canvas_text_h__ 22 #define __ardour_canvas_text_h__ 23 24 #include <pangomm/fontdescription.h> 25 #include <pangomm/layout.h> 26 27 #include "canvas/visibility.h" 28 #include "canvas/item.h" 29 30 namespace ArdourCanvas { 31 32 class LIBCANVAS_API Text : public Item 33 { 34 public: 35 Text (Canvas*); 36 Text (Item*); 37 ~Text(); 38 39 void render (Rect const &, Cairo::RefPtr<Cairo::Context>) const; 40 void compute_bounding_box () const; 41 color()42 Gtkmm2ext::Color color () const { return _color; } 43 void set_color (Gtkmm2ext::Color); 44 45 void set (std::string const &); 46 void set_font_description (Pango::FontDescription); 47 void set_alignment (Pango::Alignment); 48 49 void clamp_width (double); 50 51 double width() const; 52 double height() const; 53 54 void set_size_chars (int nchars); 55 void dump (std::ostream&) const; 56 text()57 std::string text() const { return _text; } 58 double text_width() const; 59 60 private: 61 std::string _text; 62 Gtkmm2ext::Color _color; 63 Pango::FontDescription* _font_description; 64 Pango::Alignment _alignment; 65 mutable Cairo::RefPtr<Cairo::ImageSurface> _image; 66 mutable Duple _origin; 67 mutable double _width; 68 mutable double _height; 69 mutable bool _need_redraw; 70 mutable double _width_correction; 71 double _clamped_width; 72 73 void _redraw () const; 74 }; 75 76 } 77 78 #endif /* __ardour_canvas_text_h__ */ 79