Scroll labels view with zoom.
authorCarl Hetherington <cth@carlh.net>
Mon, 2 Jul 2018 22:52:01 +0000 (23:52 +0100)
committerCarl Hetherington <cth@carlh.net>
Mon, 2 Jul 2018 22:52:01 +0000 (23:52 +0100)
src/wx/timeline.cc
src/wx/timeline.h

index 2c14b65..f68c98b 100644 (file)
@@ -55,7 +55,7 @@ using boost::optional;
 
 Timeline::Timeline (wxWindow* parent, ContentPanel* cp, shared_ptr<Film> film)
        : wxPanel (parent, wxID_ANY)
-       , _labels_panel (new wxPanel (this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxFULL_REPAINT_ON_RESIZE))
+       , _labels_canvas (new wxScrolledCanvas (this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxFULL_REPAINT_ON_RESIZE))
        , _main_canvas (new wxScrolledCanvas (this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxFULL_REPAINT_ON_RESIZE))
        , _content_panel (cp)
        , _film (film)
@@ -74,23 +74,23 @@ Timeline::Timeline (wxWindow* parent, ContentPanel* cp, shared_ptr<Film> film)
        , _track_height (48)
 {
 #ifndef __WXOSX__
-       _labels_panel->SetDoubleBuffered (true);
+       _labels_canvas->SetDoubleBuffered (true);
        _main_canvas->SetDoubleBuffered (true);
 #endif
 
        wxSizer* sizer = new wxBoxSizer (wxHORIZONTAL);
-       sizer->Add (_labels_panel, 0, wxEXPAND);
-       _labels_panel->SetMinSize (wxSize (_labels_view->bbox().width, -1));
+       sizer->Add (_labels_canvas, 0, wxEXPAND);
+       _labels_canvas->SetMinSize (wxSize (_labels_view->bbox().width, -1));
        sizer->Add (_main_canvas, 1, wxEXPAND);
        SetSizer (sizer);
 
-       _labels_panel->Bind (wxEVT_PAINT,      boost::bind (&Timeline::paint_labels, this));
-       _main_canvas->Bind  (wxEVT_PAINT,      boost::bind (&Timeline::paint_main,   this));
-       _main_canvas->Bind  (wxEVT_LEFT_DOWN,  boost::bind (&Timeline::left_down,    this, _1));
-       _main_canvas->Bind  (wxEVT_LEFT_UP,    boost::bind (&Timeline::left_up,      this, _1));
-       _main_canvas->Bind  (wxEVT_RIGHT_DOWN, boost::bind (&Timeline::right_down,   this, _1));
-       _main_canvas->Bind  (wxEVT_MOTION,     boost::bind (&Timeline::mouse_moved,  this, _1));
-       _main_canvas->Bind  (wxEVT_SIZE,       boost::bind (&Timeline::resized,      this));
+       _labels_canvas->Bind (wxEVT_PAINT,      boost::bind (&Timeline::paint_labels, this));
+       _main_canvas->Bind   (wxEVT_PAINT,      boost::bind (&Timeline::paint_main,   this));
+       _main_canvas->Bind   (wxEVT_LEFT_DOWN,  boost::bind (&Timeline::left_down,    this, _1));
+       _main_canvas->Bind   (wxEVT_LEFT_UP,    boost::bind (&Timeline::left_up,      this, _1));
+       _main_canvas->Bind   (wxEVT_RIGHT_DOWN, boost::bind (&Timeline::right_down,   this, _1));
+       _main_canvas->Bind   (wxEVT_MOTION,     boost::bind (&Timeline::mouse_moved,  this, _1));
+       _main_canvas->Bind   (wxEVT_SIZE,       boost::bind (&Timeline::resized,      this));
 
        film_changed (Film::CONTENT);
 
@@ -102,19 +102,23 @@ Timeline::Timeline (wxWindow* parent, ContentPanel* cp, shared_ptr<Film> film)
        _pixels_per_second = max (0.01, static_cast<double>(640) / film->length().seconds ());
 
        setup_scrollbars ();
-       _main_canvas->EnableScrolling (true, true);
+       _labels_canvas->ShowScrollbars (wxSHOW_SB_NEVER, wxSHOW_SB_NEVER);
 }
 
 void
 Timeline::paint_labels ()
 {
-       wxPaintDC dc (_labels_panel);
+       wxPaintDC dc (_labels_canvas);
 
        wxGraphicsContext* gc = wxGraphicsContext::Create (dc);
        if (!gc) {
                return;
        }
 
+       int vsx, vsy;
+       _labels_canvas->GetViewStart (&vsx, &vsy);
+       gc->Translate (-vsx * _x_scroll_rate, -vsy * _y_scroll_rate);
+
        _labels_view->paint (gc, list<dcpomatic::Rect<int> >());
 
        delete gc;
@@ -378,6 +382,8 @@ Timeline::setup_scrollbars ()
        if (!film || !_pixels_per_second) {
                return;
        }
+       _labels_canvas->SetVirtualSize (_labels_view->bbox().width, tracks() * track_height() + 96);
+       _labels_canvas->SetScrollRate (_x_scroll_rate, _y_scroll_rate);
        _main_canvas->SetVirtualSize (*_pixels_per_second * film->length().seconds(), tracks() * track_height() + 96);
        _main_canvas->SetScrollRate (_x_scroll_rate, _y_scroll_rate);
 }
@@ -521,10 +527,10 @@ Timeline::left_up_zoom (wxMouseEvent& ev)
        double const tracks_top = double(top_left.y) / _track_height;
        double const tracks_bottom = double(bottom_right.y) / _track_height;
        _track_height = GetSize().GetHeight() / (tracks_bottom - tracks_top);
-       cout << tracks_top << " " << tracks_bottom << "\n";
 
        setup_scrollbars ();
        _main_canvas->Scroll (time_left.seconds() * *_pixels_per_second / _x_scroll_rate, tracks_top * _track_height / _y_scroll_rate);
+       _labels_canvas->Scroll (0, tracks_top * _track_height / _y_scroll_rate);
 
        _zoom_point = optional<wxPoint> ();
        Refresh ();
index 6df4437..1b75f7a 100644 (file)
@@ -104,7 +104,7 @@ private:
        ContentList selected_content () const;
        void maybe_snap (DCPTime a, DCPTime b, boost::optional<DCPTime>& nearest_distance) const;
 
-       wxPanel* _labels_panel;
+       wxScrolledCanvas* _labels_canvas;
        wxScrolledCanvas* _main_canvas;
        ContentPanel* _content_panel;
        boost::weak_ptr<Film> _film;