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 void paint_event (wxPaintEvent& ev)
52 if (_current_image != _pending_image) {
54 _image = new wxImage (std_to_wx (_pending_image));
55 _current_image = _pending_image;
59 if (_current_crop != _pending_crop) {
60 _current_crop = _pending_crop;
66 dc.DrawBitmap (*_bitmap, 0, 0, false);
70 void size_event (wxSizeEvent &)
86 void set_crop (Crop c)
92 void set_film (Film* f)
118 DECLARE_EVENT_TABLE ();
124 if (!_film || !_image) {
131 float const target = _film->format() ? _film->format()->ratio_as_float () : 1.78;
133 _cropped_image = _image->GetSubImage (
137 _image->GetWidth() - (_current_crop.left + _current_crop.right),
138 _image->GetHeight() - (_current_crop.top + _current_crop.bottom)
142 if ((float (vw) / vh) > target) {
143 /* view is longer (horizontally) than the ratio; fit height */
144 _cropped_image.Rescale (vh * target, vh, wxIMAGE_QUALITY_HIGH);
146 /* view is shorter (horizontally) than the ratio; fit width */
147 _cropped_image.Rescale (vw, vw / target, wxIMAGE_QUALITY_HIGH);
151 _bitmap = new wxBitmap (_cropped_image);
156 std::string _current_image;
157 std::string _pending_image;
158 wxImage _cropped_image;
164 BEGIN_EVENT_TABLE (ThumbPanel, wxPanel)
165 EVT_PAINT (ThumbPanel::paint_event)
166 EVT_SIZE (ThumbPanel::size_event)
169 FilmViewer::FilmViewer (Film* f, wxWindow* p)
173 _sizer = new wxBoxSizer (wxVERTICAL);
176 _thumb_panel = new ThumbPanel (this, f);
177 _sizer->Add (_thumb_panel, 1, wxEXPAND);
179 int const max = f ? f->num_thumbs() - 1 : 0;
180 _slider = new wxSlider (this, wxID_ANY, 0, 0, max);
181 _sizer->Add (_slider, 0, wxEXPAND | wxLEFT | wxRIGHT);
184 _slider->Connect (wxID_ANY, wxEVT_COMMAND_SLIDER_UPDATED, wxCommandEventHandler (FilmViewer::slider_changed), 0, this);
190 FilmViewer::set_thumbnail (int n)
192 if (_film == 0 || _film->num_thumbs() <= n) {
196 _thumb_panel->set (_film->thumb_file(n));
200 FilmViewer::slider_changed (wxCommandEvent &)
202 set_thumbnail (_slider->GetValue ());
206 FilmViewer::film_changed (Film::Property p)
208 if (p == Film::CROP) {
209 _thumb_panel->set_crop (_film->crop ());
210 } else if (p == Film::THUMBS) {
211 if (_film && _film->num_thumbs() > 1) {
212 _slider->SetRange (0, _film->num_thumbs () - 1);
214 _thumb_panel->clear ();
215 _slider->SetRange (0, 1);
218 _slider->SetValue (0);
220 } else if (p == Film::FORMAT) {
221 _thumb_panel->refresh ();
222 } else if (p == Film::CONTENT) {
224 _film->examine_content ();
230 FilmViewer::set_film (Film* f)
233 _thumb_panel->set_film (_film);
239 _film->Changed.connect (sigc::mem_fun (*this, &FilmViewer::film_changed));
240 film_changed (Film::THUMBS);
241 _thumb_panel->refresh ();
246 FilmViewer::update_thumbs ()
252 _film->update_thumbs_pre_gui ();
254 shared_ptr<const FilmState> s = _film->state_copy ();
255 shared_ptr<Options> o (new Options (s->dir ("thumbs"), ".tiff", ""));
256 o->out_size = _film->size ();
257 o->apply_crop = false;
258 o->decode_audio = false;
259 o->decode_video_frequency = 128;
261 shared_ptr<Job> j (new ThumbsJob (s, o, _film->log ()));
262 j->Finished.connect (sigc::mem_fun (_film, &Film::update_thumbs_post_gui));
263 JobManager::instance()->add (j);
267 FilmViewer::setup_visibility ()
273 ContentType const c = _film->content_type ();
274 _slider->Show (c == VIDEO);