Implements PXEGeek's http://wiki.synfig.com/Wish_list entry: "Optionally display...
[synfig.git] / synfig-studio / trunk / src / gtkmm / renderer_timecode.cpp
1 /* === S Y N F I G ========================================================= */
2 /*!     \file renderer_timecode.cpp
3 **      \brief Template File
4 **
5 **      $Id$
6 **
7 **      \legal
8 **      Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
9 **
10 **      This package is free software; you can redistribute it and/or
11 **      modify it under the terms of the GNU General Public License as
12 **      published by the Free Software Foundation; either version 2 of
13 **      the License, or (at your option) any later version.
14 **
15 **      This package is distributed in the hope that it will be useful,
16 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
17 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 **      General Public License for more details.
19 **      \endlegal
20 */
21 /* ========================================================================= */
22
23 /* === H E A D E R S ======================================================= */
24
25 #ifdef USING_PCH
26 #       include "pch.h"
27 #else
28 #ifdef HAVE_CONFIG_H
29 #       include <config.h>
30 #endif
31
32 #include "renderer_timecode.h"
33 #include "workarea.h"
34 #include <pangomm/layout.h>
35 #include <pangomm/context.h>
36 #include <pango/pango.h>
37 #include "app.h"
38 #include <cassert>
39
40 #endif
41
42 /* === U S I N G =========================================================== */
43
44 using namespace std;
45 using namespace etl;
46 using namespace synfig;
47 using namespace studio;
48
49 /* === M A C R O S ========================================================= */
50
51 /* === G L O B A L S ======================================================= */
52
53 /* === P R O C E D U R E S ================================================= */
54
55 /* === M E T H O D S ======================================================= */
56
57 Renderer_Timecode::~Renderer_Timecode()
58 {
59 }
60
61 bool
62 Renderer_Timecode::get_enabled_vfunc()const
63 {
64         Canvas::Handle canvas(get_work_area()->get_canvas());
65         return (canvas->rend_desc().get_time_start()!=canvas->rend_desc().get_time_end() ||
66                 canvas->get_time()!=canvas->rend_desc().get_time_start());
67 }
68
69 synfig::Vector
70 Renderer_Timecode::get_grid_size()const
71 {
72         return get_work_area()->get_grid_size();
73 }
74
75 void
76 Renderer_Timecode::render_vfunc(
77         const Glib::RefPtr<Gdk::Drawable>& drawable,
78         const Gdk::Rectangle& expose_area
79 )
80 {
81         assert(get_work_area());
82         if(!get_work_area())
83                 return;
84
85         //const synfig::RendDesc &rend_desc(get_work_area()->get_canvas()->rend_desc());
86
87         const synfig::Vector focus_point(get_work_area()->get_focus_point());
88
89         //std::vector< std::pair<Glib::RefPtr<Gdk::Pixbuf>,int> >& tile_book(get_tile_book());
90
91         int drawable_w,drawable_h;
92         drawable->get_size(drawable_w,drawable_h);
93
94         // Calculate the window coordinates of the top-left
95         // corner of the canvas.
96 //      const synfig::Vector::value_type
97 //              x(focus_point[0]/get_pw()+drawable_w/2-get_w()/2),
98 //              y(focus_point[1]/get_ph()+drawable_h/2-get_h()/2);
99
100         /*const synfig::Vector::value_type window_startx(window_tl[0]);
101         const synfig::Vector::value_type window_endx(window_br[0]);
102         const synfig::Vector::value_type window_starty(window_tl[1]);
103         const synfig::Vector::value_type window_endy(window_br[1]);
104         */
105 //      const int
106 //              tile_w(get_work_area()->get_tile_w()),
107 //              tile_h(get_work_area()->get_tile_h());
108
109 //      const int
110 //              w(get_w()),
111 //              h(get_h());
112
113         Glib::RefPtr<Gdk::GC> gc(Gdk::GC::create(drawable));
114
115         //const synfig::Vector grid_size(get_grid_size());
116
117 //      const synfig::Vector::value_type window_startx(get_work_area()->get_window_tl()[0]);
118 //      const synfig::Vector::value_type window_endx(get_work_area()->get_window_br()[0]);
119 //      const synfig::Vector::value_type window_starty(get_work_area()->get_window_tl()[1]);
120 //      const synfig::Vector::value_type window_endy(get_work_area()->get_window_br()[1]);
121 //      const float pw(get_pw()),ph(get_ph());
122
123         Canvas::Handle canvas(get_work_area()->get_canvas());
124         synfig::Time cur_time(canvas->get_time());
125
126         // Print out the timecode
127         {
128                 Glib::RefPtr<Pango::Layout> layout(Pango::Layout::create(get_work_area()->get_pango_context()));
129
130 /*              Glib::ustring timecode(cur_time.get_string(rend_desc.get_frame_rate(),App::get_time_format()));
131
132                 try
133                 {
134                         timecode+="\n"+canvas->keyframe_list().find(cur_time)->get_description();
135                         gc->set_rgb_fg_color(Gdk::Color("#FF0000"));
136                 }
137                 catch(synfig::Exception::NotFound)
138                 {
139                         return;
140                         gc->set_rgb_fg_color(Gdk::Color("#000000"));
141                 }
142
143                 layout->set_text(timecode);
144 */
145
146                 gc->set_rgb_fg_color(Gdk::Color("#5f0000"));
147                 try
148                 {
149                         layout->set_text(canvas->keyframe_list().find(cur_time)->get_description());
150                 }
151                 catch(synfig::Exception::NotFound)
152                 {
153                         return;
154                 }
155                 catch(...) {
156                         assert(0);
157                 }
158
159                 drawable->draw_layout(gc, 4, 4, layout);
160         }
161 }