X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Fwx%2Faudio_mapping_view.cc;h=937dea5588b453e9992e9c991c4ff94f9f86441d;hb=bcc4e2f7dc4cd5658e199ddacb7202b00ec72cf1;hp=7a483edd9603edc5a36c3f649e7b45468244fc6b;hpb=77a79e2e9dcdbcba92e2f0701086fc953c903be6;p=dcpomatic.git diff --git a/src/wx/audio_mapping_view.cc b/src/wx/audio_mapping_view.cc index 7a483edd9..937dea558 100644 --- a/src/wx/audio_mapping_view.cc +++ b/src/wx/audio_mapping_view.cc @@ -48,8 +48,8 @@ using boost::shared_ptr; using boost::optional; using dcp::locale_convert; -#define INDICATOR_SIZE 16 -#define GRID_SPACING 24 +#define INDICATOR_SIZE 20 +#define GRID_SPACING 32 #define LEFT_WIDTH (GRID_SPACING * 3) #define TOP_HEIGHT (GRID_SPACING * 2) @@ -60,10 +60,14 @@ enum { ID_edit = 4 }; -AudioMappingView::AudioMappingView (wxWindow* parent) - : wxScrolledWindow (parent, wxID_ANY) +AudioMappingView::AudioMappingView (wxWindow* parent, wxString left_label, wxString from, wxString top_label, wxString to) + : wxPanel (parent, wxID_ANY) , _menu_input (0) , _menu_output (1) + , _left_label (left_label) + , _from (from) + , _top_label (top_label) + , _to (to) { _menu = new wxMenu; _menu->Append (ID_off, _("Off")); @@ -71,92 +75,157 @@ AudioMappingView::AudioMappingView (wxWindow* parent) _menu->Append (ID_minus6dB, _("-6dB")); _menu->Append (ID_edit, _("Edit...")); - Bind (wxEVT_PAINT, boost::bind(&AudioMappingView::paint, this)); + _body = new wxPanel (this, wxID_ANY); + _vertical_scroll = new wxScrollBar (this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxSB_VERTICAL); + _horizontal_scroll = new wxScrollBar (this, wxID_ANY); + +#ifndef __WXOSX__ + SetDoubleBuffered (true); +#endif + + Bind (wxEVT_SIZE, boost::bind(&AudioMappingView::size, this, _1)); Bind (wxEVT_MENU, boost::bind(&AudioMappingView::off, this), ID_off); - Bind (wxEVT_LEFT_DOWN, boost::bind(&AudioMappingView::left_down, this, _1)); - Bind (wxEVT_RIGHT_DOWN, boost::bind(&AudioMappingView::right_down, this, _1)); - Bind (wxEVT_MOTION, boost::bind(&AudioMappingView::motion, this, _1)); Bind (wxEVT_MENU, boost::bind(&AudioMappingView::full, this), ID_full); Bind (wxEVT_MENU, boost::bind(&AudioMappingView::minus6dB, this), ID_minus6dB); Bind (wxEVT_MENU, boost::bind(&AudioMappingView::edit, this), ID_edit); + Bind (wxEVT_MOUSEWHEEL, boost::bind(&AudioMappingView::mouse_wheel, this, _1)); + _body->Bind (wxEVT_PAINT, boost::bind(&AudioMappingView::paint, this)); + _body->Bind (wxEVT_LEFT_DOWN, boost::bind(&AudioMappingView::left_down, this, _1)); + _body->Bind (wxEVT_RIGHT_DOWN, boost::bind(&AudioMappingView::right_down, this, _1)); + _body->Bind (wxEVT_MOTION, boost::bind(&AudioMappingView::motion, this, _1)); + _vertical_scroll->Bind (wxEVT_SCROLL_TOP, boost::bind(&AudioMappingView::scroll, this)); + _vertical_scroll->Bind (wxEVT_SCROLL_BOTTOM, boost::bind(&AudioMappingView::scroll, this)); + _vertical_scroll->Bind (wxEVT_SCROLL_LINEUP, boost::bind(&AudioMappingView::scroll, this)); + _vertical_scroll->Bind (wxEVT_SCROLL_LINEDOWN, boost::bind(&AudioMappingView::scroll, this)); + _vertical_scroll->Bind (wxEVT_SCROLL_PAGEUP, boost::bind(&AudioMappingView::scroll, this)); + _vertical_scroll->Bind (wxEVT_SCROLL_PAGEDOWN, boost::bind(&AudioMappingView::scroll, this)); + _vertical_scroll->Bind (wxEVT_SCROLL_THUMBTRACK, boost::bind(&AudioMappingView::scroll, this)); + _vertical_scroll->Bind (wxEVT_SCROLL_THUMBRELEASE, boost::bind(&AudioMappingView::scroll, this)); + _horizontal_scroll->Bind (wxEVT_SCROLL_TOP, boost::bind(&AudioMappingView::scroll, this)); + _horizontal_scroll->Bind (wxEVT_SCROLL_BOTTOM, boost::bind(&AudioMappingView::scroll, this)); + _horizontal_scroll->Bind (wxEVT_SCROLL_LINEUP, boost::bind(&AudioMappingView::scroll, this)); + _horizontal_scroll->Bind (wxEVT_SCROLL_LINEDOWN, boost::bind(&AudioMappingView::scroll, this)); + _horizontal_scroll->Bind (wxEVT_SCROLL_PAGEUP, boost::bind(&AudioMappingView::scroll, this)); + _horizontal_scroll->Bind (wxEVT_SCROLL_PAGEDOWN, boost::bind(&AudioMappingView::scroll, this)); + _horizontal_scroll->Bind (wxEVT_SCROLL_THUMBTRACK, boost::bind(&AudioMappingView::scroll, this)); + _horizontal_scroll->Bind (wxEVT_SCROLL_THUMBRELEASE, boost::bind(&AudioMappingView::scroll, this)); +} - SetScrollRate (GRID_SPACING, GRID_SPACING); +void +AudioMappingView::size (wxSizeEvent& ev) +{ + setup (); + ev.Skip (); } void -AudioMappingView::paint () +AudioMappingView::setup () { - wxPaintDC dc (this); + wxSize const s = GetSize(); + int const w = _vertical_scroll->GetSize().GetWidth(); + int const h = _horizontal_scroll->GetSize().GetHeight(); - wxGraphicsContext* gc = wxGraphicsContext::Create (dc); - if (!gc) { - return; - } + _vertical_scroll->SetPosition (wxPoint(s.GetWidth() - w, 0)); + _vertical_scroll->SetSize (wxSize(w, max(0, s.GetHeight() - h))); + + _body->SetSize (wxSize(max(0, s.GetWidth() - w), max(0, s.GetHeight() - h))); - int sx, sy; - GetViewStart (&sx, &sy); - gc->Translate (-sx * GRID_SPACING, -sy * GRID_SPACING); - dc.SetLogicalOrigin (sx * GRID_SPACING, sy * GRID_SPACING); + _horizontal_scroll->SetPosition (wxPoint(0, s.GetHeight() - h)); + _horizontal_scroll->SetSize (wxSize(max(0, s.GetWidth() - w), h)); - int const output_channels_width = _output_channels.size() * GRID_SPACING; - int const input_channels_height = _input_channels.size() * GRID_SPACING; + _vertical_scroll->SetScrollbar ( + _vertical_scroll->GetThumbPosition(), + s.GetHeight() - h - 8, + GRID_SPACING * (2 + _input_channels.size()), + GRID_SPACING, + true + ); + + _horizontal_scroll->SetScrollbar ( + _horizontal_scroll->GetThumbPosition(), + s.GetWidth() - w - 8, + GRID_SPACING * (3 + _output_channels.size()), + GRID_SPACING, + true); +} + +void +AudioMappingView::scroll () +{ + Refresh (); +} +void +AudioMappingView::paint_static (wxDC& dc, wxGraphicsContext* gc) +{ gc->SetAntialiasMode (wxANTIALIAS_DEFAULT); - wxGraphicsPath lines = gc->CreatePath (); dc.SetFont (wxSWISS_FONT->Bold()); wxCoord label_width; wxCoord label_height; - /* DCP label at the top */ - - dc.GetTextExtent (_("DCP"), &label_width, &label_height); - dc.DrawText (_("DCP"), LEFT_WIDTH + (output_channels_width - label_width) / 2, (GRID_SPACING - label_height) / 2); + dc.GetTextExtent (_top_label, &label_width, &label_height); + dc.DrawText (_top_label, LEFT_WIDTH + (_output_channels.size() * GRID_SPACING - label_width) / 2, (GRID_SPACING - label_height) / 2); - /* Content label on the left */ - - dc.GetTextExtent (_("Content"), &label_width, &label_height); + dc.GetTextExtent (_left_label, &label_width, &label_height); dc.DrawRotatedText ( - _("Content"), + _left_label, (GRID_SPACING - label_height) / 2, - TOP_HEIGHT + (input_channels_height + label_width) / 2, + TOP_HEIGHT + (_input_channels.size() * GRID_SPACING + label_width) / 2, 90 ); dc.SetFont (*wxSWISS_FONT); gc->SetPen (*wxBLACK_PEN); +} - /* Column labels and some lines */ - +void +AudioMappingView::paint_column_labels (wxDC& dc, wxGraphicsContext* gc) +{ + wxCoord label_width; + wxCoord label_height; int N = 0; BOOST_FOREACH (string i, _output_channels) { dc.GetTextExtent (std_to_wx(i), &label_width, &label_height); dc.DrawText (std_to_wx(i), LEFT_WIDTH + GRID_SPACING * N + (GRID_SPACING - label_width) / 2, GRID_SPACING + (GRID_SPACING - label_height) / 2); - lines.MoveToPoint (LEFT_WIDTH + GRID_SPACING * N, GRID_SPACING); - lines.AddLineToPoint (LEFT_WIDTH + GRID_SPACING * N, TOP_HEIGHT + _input_channels.size() * GRID_SPACING); ++N; } - lines.MoveToPoint (LEFT_WIDTH + GRID_SPACING * N, GRID_SPACING); - lines.AddLineToPoint (LEFT_WIDTH + GRID_SPACING * N, TOP_HEIGHT + _input_channels.size() * GRID_SPACING); - - /* Horizontal lines at the top */ + wxGraphicsPath lines = gc->CreatePath (); lines.MoveToPoint (LEFT_WIDTH, GRID_SPACING); - lines.AddLineToPoint (LEFT_WIDTH + output_channels_width, GRID_SPACING); + lines.AddLineToPoint (LEFT_WIDTH + _output_channels.size() * GRID_SPACING, GRID_SPACING); lines.MoveToPoint (LEFT_WIDTH, GRID_SPACING * 2); - lines.AddLineToPoint (LEFT_WIDTH + output_channels_width, GRID_SPACING * 2); + lines.AddLineToPoint (LEFT_WIDTH + _output_channels.size() * GRID_SPACING, GRID_SPACING * 2); + gc->StrokePath (lines); +} + +void +AudioMappingView::paint_column_lines (wxGraphicsContext* gc) +{ + wxGraphicsPath lines = gc->CreatePath (); + for (size_t i = 0; i < _output_channels.size(); ++i) { + lines.MoveToPoint (LEFT_WIDTH + GRID_SPACING * i, GRID_SPACING); + lines.AddLineToPoint (LEFT_WIDTH + GRID_SPACING * i, TOP_HEIGHT + _input_channels.size() * GRID_SPACING); + } + lines.MoveToPoint (LEFT_WIDTH + GRID_SPACING * _output_channels.size(), GRID_SPACING); + lines.AddLineToPoint (LEFT_WIDTH + GRID_SPACING * _output_channels.size(), TOP_HEIGHT + _input_channels.size() * GRID_SPACING); + gc->StrokePath (lines); +} + +void +AudioMappingView::paint_row_labels (wxDC& dc, wxGraphicsContext* gc) +{ + wxCoord label_width; + wxCoord label_height; + wxGraphicsPath lines = gc->CreatePath (); /* Row channel labels */ - N = 0; + int N = 0; BOOST_FOREACH (string i, _input_channels) { dc.GetTextExtent (std_to_wx(i), &label_width, &label_height); dc.DrawText (std_to_wx(i), GRID_SPACING * 2 + (GRID_SPACING - label_width) / 2, TOP_HEIGHT + GRID_SPACING * N + (GRID_SPACING - label_height) / 2); - lines.MoveToPoint (GRID_SPACING * 2, TOP_HEIGHT + GRID_SPACING * N); - lines.AddLineToPoint (LEFT_WIDTH + output_channels_width, TOP_HEIGHT + GRID_SPACING * N); ++N; } - lines.MoveToPoint (GRID_SPACING * 2, TOP_HEIGHT + GRID_SPACING * N); - lines.AddLineToPoint (LEFT_WIDTH + output_channels_width, TOP_HEIGHT + GRID_SPACING * N); /* Vertical lines on the left */ @@ -169,14 +238,34 @@ AudioMappingView::paint () int y = TOP_HEIGHT; BOOST_FOREACH (Group i, _input_groups) { - dc.GetTextExtent (std_to_wx(i.name), &label_width, &label_height); int const height = (i.to - i.from + 1) * GRID_SPACING; - dc.DrawRotatedText ( - std_to_wx(i.name), - GRID_SPACING + (GRID_SPACING - label_height) / 2, - y + (height + label_width) / 2, - 90 - ); + dc.GetTextExtent (std_to_wx(i.name), &label_width, &label_height); + if (label_width > height) { + label_width = height - 8; + } + + { + int yp = y; + if ((yp - 2 * GRID_SPACING) < dc.GetLogicalOrigin().y) { + yp += dc.GetLogicalOrigin().y; + } + + wxCoord old_x, old_y, old_width, old_height; + dc.GetClippingBox (&old_x, &old_y, &old_width, &old_height); + dc.DestroyClippingRegion (); + dc.SetClippingRegion (GRID_SPACING, yp + 4, GRID_SPACING, height - 8); + + dc.DrawRotatedText ( + std_to_wx(i.name), + GRID_SPACING + (GRID_SPACING - label_height) / 2, + y + (height + label_width) / 2, + 90 + ); + + dc.DestroyClippingRegion (); + dc.SetClippingRegion (old_x, old_y, old_width, old_height); + } + lines.MoveToPoint (GRID_SPACING, y); lines.AddLineToPoint (GRID_SPACING * 2, y); y += height; @@ -186,11 +275,30 @@ AudioMappingView::paint () lines.AddLineToPoint (GRID_SPACING * 2, y); gc->StrokePath (lines); +} + +void +AudioMappingView::paint_row_lines (wxGraphicsContext* gc) +{ + wxGraphicsPath lines = gc->CreatePath (); + for (size_t i = 0; i < _input_channels.size(); ++i) { + lines.MoveToPoint (GRID_SPACING * 2, TOP_HEIGHT + GRID_SPACING * i); + lines.AddLineToPoint (LEFT_WIDTH + _output_channels.size() * GRID_SPACING, TOP_HEIGHT + GRID_SPACING * i); + } + lines.MoveToPoint (GRID_SPACING * 2, TOP_HEIGHT + GRID_SPACING * _input_channels.size()); + lines.AddLineToPoint (LEFT_WIDTH + _output_channels.size() * GRID_SPACING, TOP_HEIGHT + GRID_SPACING * _input_channels.size()); + gc->StrokePath (lines); +} - /* Indicators */ +void +AudioMappingView::paint_indicators (wxDC& dc) +{ + /* _{input,output}_channels and _map may not always be in sync, be careful here */ + size_t const output = min(_output_channels.size(), size_t(_map.output_channels())); + size_t const input = min(_input_channels.size(), size_t(_map.input_channels())); - for (size_t x = 0; x < _output_channels.size(); ++x) { - for (size_t y = 0; y < _input_channels.size(); ++y) { + for (size_t x = 0; x < output; ++x) { + for (size_t y = 0; y < input; ++y) { dc.SetBrush (*wxWHITE_BRUSH); dc.DrawRectangle ( wxRect( @@ -200,7 +308,7 @@ AudioMappingView::paint () ) ); - float const value_dB = 20 * log10 (_map.get(y, x)); + float const value_dB = linear_to_db(_map.get(y, x)); int const range = 18; int height = 0; if (value_dB > -range) { @@ -217,6 +325,71 @@ AudioMappingView::paint () ); } } +} + +static +void clip (wxDC& dc, wxGraphicsContext* gc, int x, int y, int w, int h) +{ + dc.SetClippingRegion (x, y, w, h); + gc->Clip (x, y, w, h); +} + +static +void translate (wxDC& dc, wxGraphicsContext* gc, int x, int y) +{ + gc->PushState (); + gc->Translate (-x, -y); + dc.SetLogicalOrigin (x, y); +} + +static +void restore (wxDC& dc, wxGraphicsContext* gc) +{ + dc.SetLogicalOrigin (0, 0); + gc->PopState (); + dc.DestroyClippingRegion (); + gc->ResetClip (); +} + +void +AudioMappingView::paint () +{ + wxPaintDC dc (_body); + + wxGraphicsContext* gc = wxGraphicsContext::Create (dc); + if (!gc) { + return; + } + + int const hs = _horizontal_scroll->GetThumbPosition (); + int const vs = _vertical_scroll->GetThumbPosition (); + + paint_static (dc, gc); + + clip (dc, gc, LEFT_WIDTH, 0, GRID_SPACING * _output_channels.size(), GRID_SPACING * (2 + _input_channels.size())); + translate (dc, gc, hs, 0); + paint_column_labels (dc, gc); + restore (dc, gc); + + clip (dc, gc, 0, TOP_HEIGHT, GRID_SPACING * (3 + _output_channels.size()), GRID_SPACING * _input_channels.size() + 1); + translate (dc, gc, 0, vs); + paint_row_labels (dc, gc); + restore (dc, gc); + + clip (dc, gc, GRID_SPACING * 2, TOP_HEIGHT, GRID_SPACING * (1 + _output_channels.size()), GRID_SPACING * _input_channels.size() + 1); + translate (dc, gc, hs, vs); + paint_row_lines (gc); + restore (dc, gc); + + clip (dc, gc, LEFT_WIDTH, GRID_SPACING, GRID_SPACING * (1 + _output_channels.size()), GRID_SPACING * (1 + _input_channels.size())); + translate (dc, gc, hs, vs); + paint_column_lines (gc); + restore (dc, gc); + + clip (dc, gc, LEFT_WIDTH, TOP_HEIGHT, GRID_SPACING * _output_channels.size(), GRID_SPACING * _input_channels.size()); + translate (dc, gc, hs, vs); + paint_indicators (dc); + restore (dc, gc); delete gc; } @@ -224,10 +397,8 @@ AudioMappingView::paint () optional > AudioMappingView::mouse_event_to_channels (wxMouseEvent& ev) const { - int sx, sy; - GetViewStart (&sx, &sy); - int const x = ev.GetX() + sx * GRID_SPACING; - int const y = ev.GetY() + sy * GRID_SPACING; + int const x = ev.GetX() + _horizontal_scroll->GetThumbPosition(); + int const y = ev.GetY() + _vertical_scroll->GetThumbPosition(); if (x <= LEFT_WIDTH || y < TOP_HEIGHT) { return optional >(); @@ -243,6 +414,24 @@ AudioMappingView::mouse_event_to_channels (wxMouseEvent& ev) const return make_pair (input, output); } +optional +AudioMappingView::mouse_event_to_input_group_name (wxMouseEvent& ev) const +{ + int const x = ev.GetX() + _horizontal_scroll->GetThumbPosition(); + if (x < GRID_SPACING || x > (2 * GRID_SPACING)) { + return optional(); + } + + int y = (ev.GetY() + _vertical_scroll->GetThumbPosition() - (GRID_SPACING * 2)) / GRID_SPACING; + BOOST_FOREACH (Group i, _input_groups) { + if (i.from <= y && y <= i.to) { + return i.name; + } + } + + return optional(); +} + void AudioMappingView::left_down (wxMouseEvent& ev) { @@ -273,6 +462,22 @@ AudioMappingView::right_down (wxMouseEvent& ev) PopupMenu (_menu, ev.GetPosition()); } +void +AudioMappingView::mouse_wheel (wxMouseEvent& ev) +{ + if (ev.ShiftDown()) { + _horizontal_scroll->SetThumbPosition ( + _horizontal_scroll->GetThumbPosition() + (ev.GetWheelRotation() > 0 ? -GRID_SPACING : GRID_SPACING) + ); + + } else { + _vertical_scroll->SetThumbPosition ( + _vertical_scroll->GetThumbPosition() + (ev.GetWheelRotation() > 0 ? -GRID_SPACING : GRID_SPACING) + ); + } + Refresh (); +} + /** Called when any gain value has changed */ void AudioMappingView::map_values_changed () @@ -299,30 +504,22 @@ AudioMappingView::full () void AudioMappingView::minus6dB () { - _map.set (_menu_input, _menu_output, pow (10, -6.0 / 20)); + _map.set (_menu_input, _menu_output, db_to_linear(-6)); map_values_changed (); } void AudioMappingView::edit () { - int const d = _menu_output - 1; - - AudioGainDialog* dialog = new AudioGainDialog (this, _menu_input, _menu_output - 1, _map.get(_menu_input, d)); + AudioGainDialog* dialog = new AudioGainDialog (this, _menu_input, _menu_output, _map.get(_menu_input, _menu_output)); if (dialog->ShowModal() == wxID_OK) { - _map.set (_menu_input, d, dialog->value ()); + _map.set (_menu_input, _menu_output, dialog->value ()); map_values_changed (); } dialog->Destroy (); } -void -AudioMappingView::set_virtual_size () -{ - SetVirtualSize (LEFT_WIDTH + _output_channels.size() * GRID_SPACING, TOP_HEIGHT + _input_channels.size() * GRID_SPACING); -} - void AudioMappingView::set (AudioMapping map) { @@ -334,7 +531,7 @@ void AudioMappingView::set_input_channels (vector const & names) { _input_channels = names; - set_virtual_size (); + setup (); Refresh (); } @@ -342,36 +539,89 @@ void AudioMappingView::set_output_channels (vector const & names) { _output_channels = names; - set_virtual_size (); + setup (); Refresh (); } +wxString +AudioMappingView::safe_input_channel_name (int n) const +{ + if (n >= int(_input_channels.size())) { + return wxString::Format ("%d", n + 1); + } + + optional group; + BOOST_FOREACH (Group i, _input_groups) { + if (i.from <= n && n <= i.to) { + group = std_to_wx (i.name); + } + } + + if (group && !group->IsEmpty()) { + return wxString::Format ("%s/%s", group->data(), std_to_wx(_input_channels[n]).data()); + } + + return std_to_wx(_input_channels[n]); +} + +wxString +AudioMappingView::safe_output_channel_name (int n) const +{ + if (n >= int(_output_channels.size())) { + return wxString::Format ("%d", n + 1); + } + + return std_to_wx(_output_channels[n]); +} + void AudioMappingView::motion (wxMouseEvent& ev) { optional > channels = mouse_event_to_channels (ev); - if (!channels) { - SetToolTip (""); - _last_tooltip_channels = channels; - return; - } + if (channels) { + if (channels != _last_tooltip_channels) { + wxString s; + float const gain = _map.get(channels->first, channels->second); + if (gain == 0) { + s = wxString::Format ( + _("No audio will be passed from %s channel '%s' to %s channel '%s'."), + _from, + safe_input_channel_name(channels->first), + _to, + safe_output_channel_name(channels->second) + ); + } else if (gain == 1) { + s = wxString::Format ( + _("Audio will be passed from %s channel %s to %s channel %s unaltered."), + _from, + safe_input_channel_name(channels->first), + _to, + safe_output_channel_name(channels->second) + ); + } else { + float const dB = linear_to_db(gain); + s = wxString::Format ( + _("Audio will be passed from %s channel %s to %s channel %s with gain %.1fdB."), + _from, + safe_input_channel_name(channels->first), + _to, + safe_output_channel_name(channels->second), + dB + ); + } - if (channels != _last_tooltip_channels) { - wxString s; - float const gain = _map.get(channels->first, channels->second); - if (gain == 0) { - s = wxString::Format (_("No audio will be passed from content channel %d to DCP channel %d."), channels->first + 1, channels->second + 1); - } else if (gain == 1) { - s = wxString::Format (_("Audio will be passed from content channel %d to DCP channel %d unaltered."), channels->first + 1, channels->second + 1); + SetToolTip (s + " " + _("Right click to change gain.")); + } + } else { + optional group = mouse_event_to_input_group_name (ev); + if (group) { + SetToolTip (std_to_wx(*group)); } else { - float const dB = 20 * log10 (gain); - s = wxString::Format (_("Audio will be passed from content channel %d to DCP channel %d with gain %.1fdB."), channels->first + 1, channels->second + 1, dB); + SetToolTip (""); } - - SetToolTip (s + " " + _("Right click to change gain.")); - _last_tooltip_channels = channels; } + _last_tooltip_channels = channels; ev.Skip (); }