2 Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 /** @file src/film_viewer.cc
21 * @brief A wx widget to view `thumbnails' of a Film.
27 #include "lib/format.h"
29 #include "lib/thumbs_job.h"
30 #include "lib/job_manager.h"
31 #include "lib/film_state.h"
32 #include "lib/options.h"
33 #include "film_viewer.h"
36 using namespace boost;
38 class ThumbPanel : public wxPanel
41 ThumbPanel (wxPanel* parent, Film* film)
49 void paint_event (wxPaintEvent& ev)
56 dc.DrawBitmap (*_bitmap, 0, 0, false);
59 void size_event (wxSizeEvent &)
73 float const target = _film->format()->ratio_as_float ();
76 if ((float (vw) / vh) > target) {
77 /* view is longer (horizontally) than the ratio; fit height */
78 _bitmap = new wxBitmap (_image->Scale (vh * target, vh));
80 /* view is shorter (horizontally) than the ratio; fit width */
81 _bitmap = new wxBitmap (_image->Scale (vw, vw / target));
90 _image = new wxImage (wxString (f.c_str(), wxConvUTF8));
102 DECLARE_EVENT_TABLE ();
110 BEGIN_EVENT_TABLE (ThumbPanel, wxPanel)
111 EVT_PAINT (ThumbPanel::paint_event)
112 EVT_SIZE (ThumbPanel::size_event)
115 FilmViewer::FilmViewer (Film* f, wxWindow* p)
119 _sizer = new wxBoxSizer (wxVERTICAL);
122 _thumb_panel = new ThumbPanel (this, f);
123 _sizer->Add (_thumb_panel, 1, wxEXPAND);
125 int const max = f ? f->num_thumbs() : 0;
126 _slider = new wxSlider (this, wxID_ANY, 0, 0, max);
127 _sizer->Add (_slider, 0, wxEXPAND | wxLEFT | wxRIGHT);
130 _slider->Connect (wxID_ANY, wxEVT_COMMAND_SLIDER_UPDATED, wxCommandEventHandler (FilmViewer::slider_changed), 0, this);
136 FilmViewer::load_thumbnail (int n)
138 if (_film == 0 || _film->num_thumbs() <= n) {
142 int const left = _film->left_crop ();
143 int const right = _film->right_crop ();
144 int const top = _film->top_crop ();
145 int const bottom = _film->bottom_crop ();
147 _thumb_panel->load (_film->thumb_file(n));
151 FilmViewer::reload_current_thumbnail ()
153 load_thumbnail (_slider->GetValue ());
157 FilmViewer::slider_changed (wxCommandEvent &)
159 reload_current_thumbnail ();
163 FilmViewer::format_position_slider_value (double v) const
168 if (_film && int (v) < _film->num_thumbs ()) {
169 int const f = _film->thumb_frame (int (v));
170 s << f << " " << seconds_to_hms (f / _film->frames_per_second ());
180 FilmViewer::film_changed (Film::Property p)
183 if (p == Film::LEFT_CROP || p == Film::RIGHT_CROP || p == Film::TOP_CROP || p == Film::BOTTOM_CROP) {
184 reload_current_thumbnail ();
185 } else if (p == Film::THUMBS) {
186 if (_film && _film->num_thumbs() > 1) {
187 _position_slider.set_range (0, _film->num_thumbs () - 1);
190 _position_slider.set_range (0, 1);
193 _position_slider.set_value (0);
194 reload_current_thumbnail ();
195 } else if (p == Film::FORMAT) {
196 reload_current_thumbnail ();
197 } else if (p == Film::CONTENT) {
199 _film->examine_content ();
206 FilmViewer::set_film (Film* f)
211 _thumb_panel->clear ();
215 // _film->Changed.connect (sigc::mem_fun (*this, &FilmViewer::film_changed));
217 film_changed (Film::THUMBS);
221 FilmViewer::scaled_pixbuf_size () const
225 return make_pair (0, 0);
228 int const cw = _film->size().width - _film->left_crop() - _film->right_crop();
229 int const ch = _film->size().height - _film->top_crop() - _film->bottom_crop();
232 if (_film->format()) {
233 ratio = _film->format()->ratio_as_float() * ch / cw;
236 Gtk::Allocation const a = _scroller.get_allocation ();
237 float const zoom = min (float (a.get_width()) / (cw * ratio), float (a.get_height()) / cw);
238 return make_pair (cw * zoom * ratio, ch * zoom);
243 FilmViewer::update_scaled_pixbuf ()
246 pair<int, int> const s = scaled_pixbuf_size ();
248 if (s.first > 0 && s.second > 0 && _cropped_pixbuf) {
249 _scaled_pixbuf = _cropped_pixbuf->scale_simple (s.first, s.second, Gdk::INTERP_HYPER);
250 _image.set (_scaled_pixbuf);
256 FilmViewer::update_thumbs ()
263 _film->update_thumbs_pre_gui ();
265 shared_ptr<const FilmState> s = _film->state_copy ();
266 shared_ptr<Options> o (new Options (s->dir ("thumbs"), ".tiff", ""));
267 o->out_size = _film->size ();
268 o->apply_crop = false;
269 o->decode_audio = false;
270 o->decode_video_frequency = 128;
272 shared_ptr<Job> j (new ThumbsJob (s, o, _film->log ()));
273 j->Finished.connect (sigc::mem_fun (_film, &Film::update_thumbs_post_gui));
274 JobManager::instance()->add (j);
279 FilmViewer::setup_visibility ()
286 ContentType const c = _film->content_type ();
287 _position_slider.property_visible() = (c == VIDEO);