Fix scrollwheel operation in editor.
[ardour.git] / gtk2_ardour / automation_time_axis.cc
index e72c5add00d7d1dac68598d709aaa9fea7e9ed4e..eaed1e519951e80127ea4a8e42488392fc64219d 100644 (file)
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2000-2007 Paul Davis 
+    Copyright (C) 2000-2007 Paul Davis
 
     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
@@ -23,6 +23,7 @@
 #include "ardour/automation_control.h"
 #include "ardour/event_type_map.h"
 #include "ardour/route.h"
+#include "ardour/session.h"
 
 #include "ardour_ui.h"
 #include "automation_time_axis.h"
@@ -61,7 +62,7 @@ AutomationTimeAxisView::AutomationTimeAxisView (Session& s, boost::shared_ptr<Ro
                boost::shared_ptr<Automatable> a, boost::shared_ptr<AutomationControl> c,
                PublicEditor& e, TimeAxisView& parent, bool show_regions,
                ArdourCanvas::Canvas& canvas, const string & nom, const string & nomparent)
-       : AxisView (s), 
+       : AxisView (s),
          TimeAxisView (s, e, &parent, canvas),
          _route (r),
          _control (c),
@@ -87,24 +88,26 @@ AutomationTimeAxisView::AutomationTimeAxisView (Session& s, boost::shared_ptr<Ro
 
        ignore_state_request = false;
        first_call_to_set_height = true;
-       
+
        _base_rect = new SimpleRect(*_canvas_display);
        _base_rect->property_x1() = 0.0;
        _base_rect->property_y1() = 0.0;
        _base_rect->property_x2() = LONG_MAX - 2;
        _base_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_AutomationTrackOutline.get();
-       
+
        /* outline ends and bottom */
        _base_rect->property_outline_what() = (guint32) (0x1|0x2|0x8);
        _base_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AutomationTrackFill.get();
-       
+
        _base_rect->set_data ("trackview", this);
 
        _base_rect->signal_event().connect (bind (
                        mem_fun (_editor, &PublicEditor::canvas_automation_track_event),
                        _base_rect, this));
 
-       _base_rect->lower_to_bottom();
+       if (!a) {
+               _base_rect->lower_to_bottom();
+       }
 
        hide_button.add (*(manage (new Gtk::Image (::get_icon("hide")))));
 
@@ -151,7 +154,7 @@ AutomationTimeAxisView::AutomationTimeAxisView (Session& s, boost::shared_ptr<Ro
                        shortened = true;
                }
 
-               plugname = new Label (pname);
+               plugname = new Label (pname);
                plugname->set_name (X_("TrackPlugName"));
                plugname->show();
                name_label.set_name (X_("TrackParameterName"));
@@ -172,12 +175,12 @@ AutomationTimeAxisView::AutomationTimeAxisView (Session& s, boost::shared_ptr<Ro
                tipname += _name;
                ARDOUR_UI::instance()->tooltips().set_tip(controls_ebox, tipname);
        }
-       
+
        /* add the buttons */
        controls_table.attach (hide_button, 0, 1, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND);
 
        controls_table.attach (auto_button, 5, 8, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND);
-       
+
        /* add bar controller */
        controls_table.attach (*_controller.get(), 0, 8, 1, 2, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND);
 
@@ -190,21 +193,19 @@ AutomationTimeAxisView::AutomationTimeAxisView (Session& s, boost::shared_ptr<Ro
        controls_base_unselected_name = X_("AutomationTrackControlsBase");
        controls_ebox.set_name (controls_base_unselected_name);
 
-       controls_frame.set_shadow_type (Gtk::SHADOW_ETCHED_OUT);
-
        XMLNode* xml_node = get_parent_with_state()->get_automation_child_xml_node (
                        _control->parameter());
 
        if (xml_node) {
-               set_state (*xml_node);
-       } 
-               
+               set_state (*xml_node, Stateful::loading_state_version);
+       }
+
        /* ask for notifications of any new RegionViews */
        if (show_regions) {
 
                assert(_view);
                _view->attach ();
-       
+
        /* no regions, just a single line for the entire track (e.g. bus gain) */
        } else {
                boost::shared_ptr<AutomationLine> line(new AutomationLine (
@@ -255,7 +256,9 @@ void
 AutomationTimeAxisView::set_automation_state (AutoState state)
 {
        if (!ignore_state_request) {
-               _automatable->set_parameter_automation_state (_control->parameter(), state);
+               if (_automatable) {
+                       _automatable->set_parameter_automation_state (_control->parameter(), state);
+               }
 #if 0
                if (_route == _automatable) { // This is a time axis for route (not region) automation
                        _route->set_parameter_automation_state (_control->parameter(), state);
@@ -283,7 +286,7 @@ AutomationTimeAxisView::automation_state_changed ()
        } else {
                state = _control->alist()->automation_state ();
        }
-       
+
        switch (state & (Off|Play|Touch|Write)) {
        case Off:
                auto_button.set_label (_("Manual"));
@@ -337,9 +340,9 @@ AutomationTimeAxisView::automation_state_changed ()
 
 void
 AutomationTimeAxisView::interpolation_changed ()
-{      
+{
        AutomationList::InterpolationStyle style = _control->list()->interpolation();
-       
+
        if (mode_line_item && mode_discrete_item) {
                if (style == AutomationList::Discrete) {
                        mode_discrete_item->set_active(true);
@@ -349,7 +352,7 @@ AutomationTimeAxisView::interpolation_changed ()
                        mode_discrete_item->set_active(false);
                }
        }
-       
+
        if (_line) {
                _line->set_interpolation(style);
        }
@@ -378,7 +381,7 @@ void
 AutomationTimeAxisView::set_height (uint32_t h)
 {
        bool changed = (height != (uint32_t) h) || first_call_to_set_height;
-       bool changed_between_small_and_normal = ( 
+       bool changed_between_small_and_normal = (
                   (height < hNormal && h >= hNormal)
                || (height >= hNormal || h < hNormal) );
 
@@ -388,10 +391,10 @@ AutomationTimeAxisView::set_height (uint32_t h)
 
        TimeAxisView::set_height (h);
        _base_rect->property_y2() = h;
-       
+
        if (_line)
                _line->set_height(h);
-       
+
        if (_view) {
                _view->set_height(h);
                _view->update_contents_height();
@@ -409,7 +412,7 @@ AutomationTimeAxisView::set_height (uint32_t h)
 
                if (h >= hNormal) {
                        controls_table.remove (name_hbox);
-                       
+
                        if (plugname) {
                                if (plugname_packed) {
                                        controls_table.remove (*plugname);
@@ -424,7 +427,7 @@ AutomationTimeAxisView::set_height (uint32_t h)
                        hide_name_entry ();
                        show_name_label ();
                        name_hbox.show_all ();
-                       
+
                        auto_button.show();
                        hide_button.show_all();
 
@@ -441,7 +444,7 @@ AutomationTimeAxisView::set_height (uint32_t h)
                        hide_name_entry ();
                        show_name_label ();
                        name_hbox.show_all ();
-                       
+
                        auto_button.hide();
                        hide_button.hide();
                }
@@ -462,20 +465,20 @@ AutomationTimeAxisView::set_samples_per_unit (double spu)
 
        if (_line)
                _line->reset ();
-       
+
        if (_view)
                _view->set_samples_per_unit (spu);
 }
+
 void
 AutomationTimeAxisView::hide_clicked ()
 {
        // LAME fix for refreshing the hide button
        hide_button.set_sensitive(false);
-       
+
        set_marked_for_display (false);
        hide ();
-       
+
        hide_button.set_sensitive(true);
 }
 
@@ -508,7 +511,7 @@ AutomationTimeAxisView::build_display_menu ()
        Menu* auto_state_menu = manage (new Menu);
        auto_state_menu->set_name ("ArdourContextMenu");
        MenuList& as_items = auto_state_menu->items();
-       
+
        as_items.push_back (CheckMenuElem (_("Manual"), bind (
                        mem_fun(*this, &AutomationTimeAxisView::set_automation_state),
                        (AutoState) Off)));
@@ -530,29 +533,30 @@ AutomationTimeAxisView::build_display_menu ()
        auto_touch_item = dynamic_cast<CheckMenuItem*>(&as_items.back());
 
        items.push_back (MenuElem (_("State"), *auto_state_menu));
-       
+
        /* mode menu */
 
-       if ( EventTypeMap::instance().is_midi_parameter(_control->parameter()) ) {
-               
+       if (EventTypeMap::instance().is_midi_parameter(_control->parameter())) {
+
                Menu* auto_mode_menu = manage (new Menu);
                auto_mode_menu->set_name ("ArdourContextMenu");
                MenuList& am_items = auto_mode_menu->items();
-       
+
                RadioMenuItem::Group group;
-               
+
                am_items.push_back (RadioMenuElem (group, _("Discrete"), bind (
-                                               mem_fun(*this, &AutomationTimeAxisView::set_interpolation),
-                                               AutomationList::Discrete)));
+                               mem_fun(*this, &AutomationTimeAxisView::set_interpolation),
+                               AutomationList::Discrete)));
                mode_discrete_item = dynamic_cast<CheckMenuItem*>(&am_items.back());
                mode_discrete_item->set_active(_control->list()->interpolation() == AutomationList::Discrete);
 
-               // For discrete types we dont allow the linear option since it makes no sense for those Controls
+               am_items.push_back (RadioMenuElem (group, _("Linear"), bind (
+                               mem_fun(*this, &AutomationTimeAxisView::set_interpolation),
+                               AutomationList::Linear)));
+               mode_line_item = dynamic_cast<CheckMenuItem*>(&am_items.back());
+
+               // Set default interpolation type to linear if this isn't a (usually) discrete controller
                if (EventTypeMap::instance().interpolation_of(_control->parameter()) == Evoral::ControlList::Linear) {
-                       am_items.push_back (RadioMenuElem (group, _("Line"), bind (
-                                                       mem_fun(*this, &AutomationTimeAxisView::set_interpolation),
-                                                       AutomationList::Linear)));
-                       mode_line_item = dynamic_cast<CheckMenuItem*>(&am_items.back());
                        mode_line_item->set_active(_control->list()->interpolation() == AutomationList::Linear);
                }
 
@@ -566,7 +570,7 @@ AutomationTimeAxisView::build_display_menu ()
 }
 
 void
-AutomationTimeAxisView::add_automation_event (ArdourCanvas::Item* item, GdkEvent* event, nframes_t when, double y)
+AutomationTimeAxisView::add_automation_event (ArdourCanvas::Item* /*item*/, GdkEvent* /*event*/, nframes_t when, double y)
 {
        if (!_line)
                return;
@@ -594,7 +598,6 @@ AutomationTimeAxisView::add_automation_event (ArdourCanvas::Item* item, GdkEvent
        _session.set_dirty ();
 }
 
-
 bool
 AutomationTimeAxisView::cut_copy_clear (Selection& selection, CutCopyOp op)
 {
@@ -663,7 +666,7 @@ AutomationTimeAxisView::reset_objects_one (AutomationLine& line, PointSelection&
                if (&(*i).track != this) {
                        continue;
                }
-               
+
                alist->reset_range ((*i).start, (*i).end);
        }
 }
@@ -702,7 +705,7 @@ AutomationTimeAxisView::cut_copy_clear_objects_one (AutomationLine& line, PointS
                                _editor.get_cut_buffer().add (what_we_got);
                        }
                        break;
-                       
+
                case Clear:
                        if ((what_we_got = alist->cut ((*i).start, (*i).end)) != 0) {
                                _session.add_command (new MementoCommand<AutomationList>(*alist.get(), new XMLNode (before), &alist->get_state()));
@@ -738,7 +741,7 @@ AutomationTimeAxisView::paste_one (AutomationLine& line, nframes_t pos, float ti
 {
        AutomationSelection::iterator p;
        boost::shared_ptr<AutomationList> alist(line.the_list());
-       
+
        for (p = selection.lines.begin(); p != selection.lines.end() && nth; ++p, --nth) {}
 
        if (p == selection.lines.end()) {
@@ -749,7 +752,7 @@ AutomationTimeAxisView::paste_one (AutomationLine& line, nframes_t pos, float ti
           values from view coordinates to model coordinates, and we're
           not supposed to modify the points in the selection.
        */
-          
+
        AutomationList copy (**p);
 
        for (AutomationList::iterator x = copy.begin(); x != copy.end(); ++x) {
@@ -859,7 +862,7 @@ AutomationTimeAxisView::exited ()
 }
 
 void
-AutomationTimeAxisView::color_handler () 
+AutomationTimeAxisView::color_handler ()
 {
        if (_line) {
                _line->set_colors();
@@ -867,9 +870,9 @@ AutomationTimeAxisView::color_handler ()
 }
 
 int
-AutomationTimeAxisView::set_state (const XMLNode& node)
+AutomationTimeAxisView::set_state (const XMLNode& node, int version)
 {
-       TimeAxisView::set_state (node);
+       TimeAxisView::set_state (node, version);
 
        XMLProperty const * type = node.property ("automation-id");
        if (type && type->value () == ARDOUR::EventTypeMap::instance().to_symbol (_control->parameter())) {
@@ -879,7 +882,7 @@ AutomationTimeAxisView::set_state (const XMLNode& node)
                        _canvas_display->show (); /* FIXME: necessary? show_at? */
                }
        }
-       
+
        if (!_marked_for_display) {
                hide();
        }
@@ -912,7 +915,7 @@ guint32
 AutomationTimeAxisView::show_at (double y, int& nth, Gtk::VBox *parent)
 {
        update_extra_xml_shown (true);
-       
+
        return TimeAxisView::show_at (y, nth, parent);
 }