+/*
+ Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+/** @file src/film_viewer.cc
+ * @brief A wx widget to view `thumbnails' of a Film.
+ */
+
#include <iostream>
+#include <iomanip>
#include "lib/film.h"
+#include "lib/format.h"
+#include "lib/util.h"
+#include "lib/job_manager.h"
+#include "lib/film_state.h"
+#include "lib/options.h"
+#include "lib/subtitle.h"
#include "film_viewer.h"
+#include "wx_util.h"
using namespace std;
+using namespace boost;
class ThumbPanel : public wxPanel
{
public:
- ThumbPanel (wxFrame* parent)
+ ThumbPanel (wxPanel* parent, Film* film)
: wxPanel (parent)
- , _bitmap (0)
- {
- }
+ , _film (film)
+ , _frame_rebuild_needed (false)
+ , _composition_needed (false)
+ {}
+ /** Handle a paint event */
void paint_event (wxPaintEvent& ev)
{
- if (!_bitmap) {
+ if (!_film || _film->thumbs().size() == 0) {
+ wxPaintDC dc (this);
return;
}
- cout << "RENDER\n";
-
+ if (_frame_rebuild_needed) {
+ _image.reset (new wxImage (std_to_wx (_film->thumb_file (_index))));
+
+ _subtitle.reset ();
+ pair<Position, string> s = _film->thumb_subtitle (_index);
+ if (!s.second.empty ()) {
+ _subtitle.reset (new SubtitleView (s.first, std_to_wx (s.second)));
+ }
+
+ _frame_rebuild_needed = false;
+ compose ();
+ }
+
+ if (_composition_needed) {
+ compose ();
+ }
+
wxPaintDC dc (this);
- dc.DrawBitmap (*_bitmap, 0, 0, false);
+ if (_bitmap) {
+ dc.DrawBitmap (*_bitmap, 0, 0, false);
+ }
+
+ if (_film->with_subtitles() && _subtitle) {
+ dc.DrawBitmap (*_subtitle->bitmap, _subtitle->transformed_area.x, _subtitle->transformed_area.y, true);
+ }
+ }
+
+ /** Handle a size event */
+ void size_event (wxSizeEvent &)
+ {
+ if (!_image) {
+ return;
+ }
+
+ recompose ();
+ }
+
+ /** @param n Thumbnail index */
+ void set (int n)
+ {
+ _index = n;
+ _frame_rebuild_needed = true;
+ Refresh ();
+ }
+
+ void set_film (Film* f)
+ {
+ _film = f;
+ if (!_film) {
+ clear ();
+ _frame_rebuild_needed = true;
+ Refresh ();
+ } else {
+ _frame_rebuild_needed = true;
+ Refresh ();
+ }
+ }
+
+ /** Clear our thumbnail image */
+ void clear ()
+ {
+ _bitmap.reset ();
+ _image.reset ();
+ _subtitle.reset ();
}
- void set_bitmap (wxBitmap* bitmap)
+ void recompose ()
{
- _bitmap = bitmap;
+ _composition_needed = true;
+ Refresh ();
}
DECLARE_EVENT_TABLE ();
private:
- wxBitmap* _bitmap;
+
+ void compose ()
+ {
+ _composition_needed = false;
+
+ if (!_film || !_image) {
+ return;
+ }
+
+ /* Size of the view */
+ int vw, vh;
+ GetSize (&vw, &vh);
+
+ Crop const fc = _film->crop ();
+
+ /* Cropped rectangle */
+ Rect cropped_area (
+ fc.left,
+ fc.top,
+ _image->GetWidth() - (fc.left + fc.right),
+ _image->GetHeight() - (fc.top + fc.bottom)
+ );
+
+ /* Target ratio */
+ float const target = _film->format() ? _film->format()->ratio_as_float (_film) : 1.78;
+
+ _transformed_image = _image->GetSubImage (wxRect (cropped_area.x, cropped_area.y, cropped_area.width, cropped_area.height));
+
+ float x_scale = 1;
+ float y_scale = 1;
+
+ if ((float (vw) / vh) > target) {
+ /* view is longer (horizontally) than the ratio; fit height */
+ _transformed_image.Rescale (vh * target, vh, wxIMAGE_QUALITY_HIGH);
+ x_scale = vh * target / cropped_area.width;
+ y_scale = float (vh) / cropped_area.height;
+ } else {
+ /* view is shorter (horizontally) than the ratio; fit width */
+ _transformed_image.Rescale (vw, vw / target, wxIMAGE_QUALITY_HIGH);
+ x_scale = float (vw) / cropped_area.width;
+ y_scale = (vw / target) / cropped_area.height;
+ }
+
+ _bitmap.reset (new wxBitmap (_transformed_image));
+
+ if (_subtitle) {
+
+ _subtitle->transformed_area = subtitle_transformed_area (
+ x_scale, y_scale, _subtitle->base_area, _film->subtitle_offset(), _film->subtitle_scale()
+ );
+
+ _subtitle->transformed_image = _subtitle->base_image;
+ _subtitle->transformed_image.Rescale (_subtitle->transformed_area.width, _subtitle->transformed_area.height, wxIMAGE_QUALITY_HIGH);
+ _subtitle->transformed_area.x -= rint (_film->crop().left * x_scale);
+ _subtitle->transformed_area.y -= rint (_film->crop().top * y_scale);
+ _subtitle->bitmap.reset (new wxBitmap (_subtitle->transformed_image));
+ }
+ }
+
+ Film* _film;
+ shared_ptr<wxImage> _image;
+ wxImage _transformed_image;
+ /** currently-displayed thumbnail index */
+ int _index;
+ shared_ptr<wxBitmap> _bitmap;
+ bool _frame_rebuild_needed;
+ bool _composition_needed;
+
+ struct SubtitleView
+ {
+ SubtitleView (Position p, wxString const & i)
+ : base_image (i)
+ {
+ base_area.x = p.x;
+ base_area.y = p.y;
+ base_area.width = base_image.GetWidth ();
+ base_area.height = base_image.GetHeight ();
+ }
+
+ Rect base_area;
+ Rect transformed_area;
+ wxImage base_image;
+ wxImage transformed_image;
+ shared_ptr<wxBitmap> bitmap;
+ };
+
+ shared_ptr<SubtitleView> _subtitle;
};
BEGIN_EVENT_TABLE (ThumbPanel, wxPanel)
EVT_PAINT (ThumbPanel::paint_event)
+EVT_SIZE (ThumbPanel::size_event)
END_EVENT_TABLE ()
-FilmViewer::FilmViewer (Film* f, wxFrame* p)
- : _film (f)
- , _image (0)
- , _scaled_image (0)
- , _bitmap (0)
+FilmViewer::FilmViewer (Film* f, wxWindow* p)
+ : wxPanel (p)
+ , _film (0)
{
- _thumb_panel = new ThumbPanel (p);
- _thumb_panel->Show (true);
- int x, y;
- _thumb_panel->GetSize (&x, &y);
- cout << x << " " << y << "\n";
+ _sizer = new wxBoxSizer (wxVERTICAL);
+ SetSizer (_sizer);
+
+ _thumb_panel = new ThumbPanel (this, f);
+ _sizer->Add (_thumb_panel, 1, wxEXPAND);
+
+ int const m = max ((size_t) 1, f ? f->thumbs().size() - 1 : 0);
+ _slider = new wxSlider (this, wxID_ANY, 0, 0, m);
+ _sizer->Add (_slider, 0, wxEXPAND | wxLEFT | wxRIGHT);
+ set_thumbnail (0);
+
+ _slider->Connect (wxID_ANY, wxEVT_COMMAND_SLIDER_UPDATED, wxCommandEventHandler (FilmViewer::slider_changed), 0, this);
+
+ set_film (_film);
}
void
-FilmViewer::load_thumbnail (int n)
+FilmViewer::set_thumbnail (int n)
{
- if (_film == 0 && _film->num_thumbs() <= n) {
+ if (_film == 0 || int (_film->thumbs().size()) <= n) {
return;
}
- _image = new wxImage (wxString (_film->thumb_file(n).c_str (), wxConvUTF8));
- _scaled_image = new wxImage (_image->Scale (512, 512));
- _bitmap = new wxBitmap (*_scaled_image);
- _thumb_panel->set_bitmap (_bitmap);
+ _thumb_panel->set (n);
}
-wxPanel *
-FilmViewer::get_widget ()
+void
+FilmViewer::slider_changed (wxCommandEvent &)
{
- return _thumb_panel;
+ set_thumbnail (_slider->GetValue ());
+}
+
+void
+FilmViewer::film_changed (FilmState::Property p)
+{
+ ensure_ui_thread ();
+
+ switch (p) {
+ case FilmState::THUMBS:
+ if (_film && _film->thumbs().size() > 1) {
+ _slider->SetRange (0, _film->thumbs().size() - 1);
+ } else {
+ _thumb_panel->clear ();
+ _slider->SetRange (0, 1);
+ }
+
+ _slider->SetValue (0);
+ set_thumbnail (0);
+ break;
+ case FilmState::CONTENT:
+ setup_visibility ();
+ break;
+ case FilmState::CROP:
+ case FilmState::FORMAT:
+ case FilmState::WITH_SUBTITLES:
+ case FilmState::SUBTITLE_OFFSET:
+ case FilmState::SUBTITLE_SCALE:
+ _thumb_panel->recompose ();
+ break;
+ default:
+ break;
+ }
+}
+
+void
+FilmViewer::set_film (Film* f)
+{
+ if (_film == f) {
+ return;
+ }
+
+ _film = f;
+ _thumb_panel->set_film (_film);
+
+ if (!_film) {
+ return;
+ }
+
+ _film->Changed.connect (sigc::mem_fun (*this, &FilmViewer::film_changed));
+ film_changed (Film::CROP);
+ film_changed (Film::THUMBS);
+ setup_visibility ();
+}
+
+void
+FilmViewer::setup_visibility ()
+{
+ if (!_film) {
+ return;
+ }
+
+ ContentType const c = _film->content_type ();
+ _slider->Show (c == VIDEO);
}
projects / dcpomatic.git / blobdiff