Allow dragging of the border between the controls and the preview (#2350).

[dcpomatic.git] / src / tools / dcpomatic.cc

diff --git a/src/tools/dcpomatic.cc b/src/tools/dcpomatic.cc
index adc7823c50a0e8a7e456abacb2bca1ca98c9161d..a10cb9b35505f9b322f2033f79bafaa2c17ce34f 100644 (file)
--- a/src/tools/dcpomatic.cc
+++ b/src/tools/dcpomatic.cc
@@ -270,6 +270,43 @@ enum {
 };
 
 
+class LimitedFrameSplitter : public wxSplitterWindow
+{
+public:
+       LimitedFrameSplitter(wxWindow* parent)
+               : wxSplitterWindow(parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxSP_NOBORDER | wxSP_3DSASH | wxSP_LIVE_UPDATE)
+       {
+               /* This value doesn't really mean much but we just want to stop double-click on the
+                  divider from shrinking the left panel.
+                  */
+               SetMinimumPaneSize(64);
+
+               Bind(wxEVT_SIZE, boost::bind(&LimitedFrameSplitter::sized, this, _1));
+       }
+
+       bool OnSashPositionChange(int new_position) override
+       {
+               /* Try to stop the left bit of the splitter getting too small */
+               return new_position > _left_panel_minimum_size;
+       }
+
+private:
+       void sized(wxSizeEvent& ev)
+       {
+               if (GetSize().GetWidth() > _left_panel_minimum_size && GetSashPosition() < _left_panel_minimum_size) {
+                       /* The window is now fairly big but the left panel is small; this happens when the DCP-o-matic window
+                        * is shrunk and then made larger again.  Try to set a sensible left panel size in this case.
+                        */
+                       SetSashPosition(_left_panel_minimum_size);
+               }
+
+               ev.Skip();
+       }
+
+       int const _left_panel_minimum_size = 200;
+};
+
+
 class DOMFrame : public wxFrame
 {
 public:
@@ -278,8 +315,9 @@ public:
                /* Use a panel as the only child of the Frame so that we avoid
                   the dark-grey background on Windows.
                */
-               , _overall_panel(new wxPanel(this, wxID_ANY))
-               , _film_viewer(_overall_panel)
+               , _splitter(new LimitedFrameSplitter(this))
+               , _right_panel(new wxPanel(_splitter, wxID_ANY))
+               , _film_viewer(_right_panel)
        {
 #if defined(DCPOMATIC_WINDOWS)
                if (Config::instance()->win32_console()) {
@@ -353,18 +391,26 @@ public:
                Bind (wxEVT_CLOSE_WINDOW, boost::bind (&DOMFrame::close, this, _1));
                Bind (wxEVT_SHOW, boost::bind (&DOMFrame::show, this, _1));
 
-               _controls = new StandardControls(_overall_panel, _film_viewer, true);
-               _film_editor = new FilmEditor(_overall_panel, _film_viewer);
-               auto job_manager_view = new JobManagerView(_overall_panel, false);
+               auto left_panel = new wxPanel(_splitter, wxID_ANY);
+
+               _film_editor = new FilmEditor(left_panel, _film_viewer);
+
+               auto left_sizer = new wxBoxSizer(wxHORIZONTAL);
+               left_sizer->Add(_film_editor, 1, wxEXPAND);
+
+               left_panel->SetSizerAndFit(left_sizer);
+
+               _controls = new StandardControls(_right_panel, _film_viewer, true);
+               auto job_manager_view = new JobManagerView(_right_panel, false);
 
                auto right_sizer = new wxBoxSizer (wxVERTICAL);
                right_sizer->Add(_film_viewer.panel(), 2, wxEXPAND | wxALL, 6);
                right_sizer->Add (_controls, 0, wxEXPAND | wxALL, 6);
                right_sizer->Add (job_manager_view, 1, wxEXPAND | wxALL, 6);
 
-               wxBoxSizer* main_sizer = new wxBoxSizer (wxHORIZONTAL);
-               main_sizer->Add (_film_editor, 0, wxEXPAND | wxALL, 6);
-               main_sizer->Add (right_sizer, 1, wxEXPAND | wxALL, 6);
+               _right_panel->SetSizer(right_sizer);
+
+               _splitter->SplitVertically(left_panel, _right_panel, left_panel->GetSize().GetWidth() + 8);
 
                set_menu_sensitivity ();
 
@@ -373,8 +419,6 @@ public:
 
                JobManager::instance()->ActiveJobsChanged.connect(boost::bind(&DOMFrame::active_jobs_changed, this));
 
-               _overall_panel->SetSizer(main_sizer);
-
                UpdateChecker::instance()->StateChanged.connect(boost::bind(&DOMFrame::update_checker_state_changed, this));
 
                FocusManager::instance()->SetFocus.connect (boost::bind (&DOMFrame::remove_accelerators, this));
@@ -1550,7 +1594,8 @@ private:
        }
 
        FilmEditor* _film_editor;
-       wxPanel* _overall_panel;
+       LimitedFrameSplitter* _splitter;
+       wxPanel* _right_panel;
        FilmViewer _film_viewer;
        StandardControls* _controls;
        VideoWaveformDialog* _video_waveform_dialog = nullptr;