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"
37 using namespace boost;
39 class ThumbPanel : public wxPanel
42 ThumbPanel (wxPanel* parent, Film* film)
50 /** Handle a paint event */
51 void paint_event (wxPaintEvent& ev)
53 if (_current_image != _pending_image) {
55 _image = new wxImage (std_to_wx (_pending_image));
56 _current_image = _pending_image;
60 if (_current_crop != _pending_crop) {
61 _current_crop = _pending_crop;
67 dc.DrawBitmap (*_bitmap, 0, 0, false);
71 /** Handle a size event */
72 void size_event (wxSizeEvent &)
88 void set_crop (Crop c)
94 void set_film (Film* f)
106 /** Clear our thumbnail image */
121 DECLARE_EVENT_TABLE ();
127 if (!_film || !_image) {
134 float const target = _film->format() ? _film->format()->ratio_as_float (_film) : 1.78;
136 _cropped_image = _image->GetSubImage (
140 _image->GetWidth() - (_current_crop.left + _current_crop.right),
141 _image->GetHeight() - (_current_crop.top + _current_crop.bottom)
145 if ((float (vw) / vh) > target) {
146 /* view is longer (horizontally) than the ratio; fit height */
147 _cropped_image.Rescale (vh * target, vh, wxIMAGE_QUALITY_HIGH);
149 /* view is shorter (horizontally) than the ratio; fit width */
150 _cropped_image.Rescale (vw, vw / target, wxIMAGE_QUALITY_HIGH);
154 _bitmap = new wxBitmap (_cropped_image);
159 std::string _current_image;
160 std::string _pending_image;
161 wxImage _cropped_image;
167 BEGIN_EVENT_TABLE (ThumbPanel, wxPanel)
168 EVT_PAINT (ThumbPanel::paint_event)
169 EVT_SIZE (ThumbPanel::size_event)
172 FilmViewer::FilmViewer (Film* f, wxWindow* p)
176 _sizer = new wxBoxSizer (wxVERTICAL);
179 _thumb_panel = new ThumbPanel (this, f);
180 _sizer->Add (_thumb_panel, 1, wxEXPAND);
182 int const max = f ? f->num_thumbs() - 1 : 0;
183 _slider = new wxSlider (this, wxID_ANY, 0, 0, max);
184 _sizer->Add (_slider, 0, wxEXPAND | wxLEFT | wxRIGHT);
187 _slider->Connect (wxID_ANY, wxEVT_COMMAND_SLIDER_UPDATED, wxCommandEventHandler (FilmViewer::slider_changed), 0, this);
193 FilmViewer::set_thumbnail (int n)
195 if (_film == 0 || _film->num_thumbs() <= n) {
199 _thumb_panel->set (_film->thumb_file(n));
203 FilmViewer::slider_changed (wxCommandEvent &)
205 set_thumbnail (_slider->GetValue ());
209 FilmViewer::film_changed (Film::Property p)
211 if (p == Film::CROP) {
212 _thumb_panel->set_crop (_film->crop ());
213 } else if (p == Film::THUMBS) {
214 if (_film && _film->num_thumbs() > 1) {
215 _slider->SetRange (0, _film->num_thumbs () - 1);
217 _thumb_panel->clear ();
218 _slider->SetRange (0, 1);
221 _slider->SetValue (0);
223 } else if (p == Film::FORMAT) {
224 _thumb_panel->refresh ();
225 } else if (p == Film::CONTENT) {
227 _film->examine_content ();
233 FilmViewer::set_film (Film* f)
240 _thumb_panel->set_film (_film);
246 _film->Changed.connect (sigc::mem_fun (*this, &FilmViewer::film_changed));
247 film_changed (Film::CROP);
248 film_changed (Film::THUMBS);
249 _thumb_panel->refresh ();
254 FilmViewer::update_thumbs ()
260 _film->update_thumbs_pre_gui ();
262 shared_ptr<const FilmState> s = _film->state_copy ();
263 shared_ptr<Options> o (new Options (s->dir ("thumbs"), ".tiff", ""));
264 o->out_size = _film->size ();
265 o->apply_crop = false;
266 o->decode_audio = false;
267 o->decode_video_frequency = 128;
269 shared_ptr<Job> j (new ThumbsJob (s, o, _film->log ()));
270 j->Finished.connect (sigc::mem_fun (_film, &Film::update_thumbs_post_gui));
271 JobManager::instance()->add (j);
275 FilmViewer::setup_visibility ()
281 ContentType const c = _film->content_type ();
282 _slider->Show (c == VIDEO);