packaging tweaks for OS X
[ardour.git] / gtk2_ardour / ardour_button.cc
index 08d28a1aea2df7e4dd2eb2ee486a7c73576f1aec..1d98a7b84fceb2786f18d1d246b2c2b904868e85 100644 (file)
 #include <pangomm/layout.h>
 
 #include "pbd/compose.h"
+#include "pbd/error.h"
 
 #include "gtkmm2ext/utils.h"
 #include "gtkmm2ext/rgb_macros.h"
+#include "gtkmm2ext/gui_thread.h"
+
+#include "ardour/rc_configuration.h" // for widget prelight preference
 
 #include "ardour_button.h"
 #include "ardour_ui.h"
 #include "global_signals.h"
 
+#include "i18n.h"
+
 using namespace Gdk;
 using namespace Gtk;
 using namespace Glib;
+using namespace PBD;
 using std::max;
 using std::min;
+using namespace std;
 
 ArdourButton::Element ArdourButton::default_elements = ArdourButton::Element (ArdourButton::Edge|ArdourButton::Body|ArdourButton::Text);
 ArdourButton::Element ArdourButton::led_default_elements = ArdourButton::Element (ArdourButton::default_elements|ArdourButton::Indicator);
+ArdourButton::Element ArdourButton::just_led_default_elements = ArdourButton::Element (ArdourButton::Edge|ArdourButton::Body|ArdourButton::Indicator);
 
 ArdourButton::ArdourButton (Element e)
-        : _elements (e)
+       : _elements (e)
+       , _tweaks (Tweaks (0))
        , _text_width (0)
        , _text_height (0)
-       , _led_left (false)
-        , _diameter (0.0)
-        , _fixed_diameter (false)
-       , _distinct_led_click (true)
-       , _corner_radius (9)
+       , _diameter (11.0)
+       , _corner_radius (5.0)
+       , _corner_mask (0xf)
        , edge_pattern (0)
-       , fill_pattern (0)
+       , active_pattern (0)
+       , inactive_pattern (0)
        , led_inset_pattern (0)
        , reflection_pattern (0)
-         
+       , _led_rect (0)
+       , _act_on_release (true)
+       , _led_left (false)
+       , _fixed_diameter (true)
+       , _distinct_led_click (false)
+       , _hovering (false)
 {
        ColorsChanged.connect (sigc::mem_fun (*this, &ArdourButton::color_handler));
-       StateChanged.connect (sigc::mem_fun (*this, &ArdourButton::state_handler));
+}
+
+ArdourButton::ArdourButton (const std::string& str, Element e)
+       : _elements (e)
+       , _tweaks (Tweaks (0))
+       , _text_width (0)
+       , _text_height (0)
+       , _diameter (11.0)
+       , _corner_radius (9.0)
+       , _corner_mask (0xf)
+       , edge_pattern (0)
+       , active_pattern (0)
+       , inactive_pattern (0)
+       , led_inset_pattern (0)
+       , reflection_pattern (0)
+       , _led_rect (0)
+       , _act_on_release (true)
+       , _led_left (false)
+       , _fixed_diameter (true)
+       , _distinct_led_click (false)
+       , _hovering (false)
+{
+       set_text (str);
 }
 
 ArdourButton::~ArdourButton()
 {
+       delete _led_rect;
+
+       if (edge_pattern) {
+               cairo_pattern_destroy (edge_pattern);
+       }
+
+       if (active_pattern) {
+               cairo_pattern_destroy (active_pattern);
+       }
+
+       if (inactive_pattern) {
+               cairo_pattern_destroy (inactive_pattern);
+       }
 }
 
 void
@@ -72,8 +121,10 @@ ArdourButton::set_text (const std::string& str)
        if (!_layout && !_text.empty()) {
                _layout = Pango::Layout::create (get_pango_context());
        } 
-       
-       _layout->set_text (str);
+
+       if (_layout) {
+               _layout->set_text (str);
+       }
 
        queue_resize ();
 }
@@ -94,63 +145,111 @@ ArdourButton::set_markup (const std::string& str)
 void
 ArdourButton::render (cairo_t* cr)
 {
-        if (!_fixed_diameter) {
-                _diameter = std::min (_width, _height);
-        }
+       void (*rounded_function)(cairo_t*, double, double, double, double, double);
+
+       switch (_corner_mask) {
+       case 0x1: /* upper left only */
+               rounded_function = Gtkmm2ext::rounded_top_left_rectangle;
+               break;
+       case 0x2: /* upper right only */
+               rounded_function = Gtkmm2ext::rounded_top_right_rectangle;
+               break;
+       case 0x3: /* upper only */
+               rounded_function = Gtkmm2ext::rounded_top_rectangle;
+               break;
+               /* should really have functions for lower right, lower left,
+                  lower only, but for now, we don't
+               */
+       default:
+               rounded_function = Gtkmm2ext::rounded_rectangle;
+       }
 
-       /* background fill. use parent window style, so that we fit in nicely.
-        */
-       
-       Color c = get_parent_bg ();
-       
-        cairo_rectangle (cr, 0, 0, _width, _height);
-        cairo_stroke_preserve (cr);
-        cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
-        cairo_fill (cr);
+       if (!_fixed_diameter) {
+               _diameter = std::min (get_width(), get_height());
+       }
 
        if (_elements & Edge) {
-               Gtkmm2ext::rounded_rectangle (cr, 0, 0, _width, _height, _corner_radius);
+               rounded_function (cr, 0, 0, get_width(), get_height(), _corner_radius);
                cairo_set_source (cr, edge_pattern);
                cairo_fill (cr);
        }
 
        if (_elements & Body) {
                if (_elements & Edge) {
-                       Gtkmm2ext::rounded_rectangle (cr, 1, 1, _width-2, _height-2, _corner_radius);
+                       rounded_function (cr, 1, 1, get_width()-2, get_height()-2, _corner_radius - 1.0);
+               } else {
+                       rounded_function (cr, 0, 0, get_width(), get_height(), _corner_radius - 1.0);
+               }
+
+               if (active_state() == Gtkmm2ext::ImplicitActive) {
+                       cairo_set_source (cr, inactive_pattern);
+                       cairo_fill_preserve (cr);
+                       cairo_set_line_width (cr, 2.0);
+                       cairo_set_source (cr, active_pattern);
+                       cairo_stroke (cr);
+               } else if (active_state() == Gtkmm2ext::ExplicitActive) {
+                       cairo_set_source (cr, active_pattern);
+                       cairo_fill (cr);
                } else {
-                       Gtkmm2ext::rounded_rectangle (cr, 0, 0, _width, _height, _corner_radius);
+                       cairo_set_source (cr, inactive_pattern);
+                       cairo_fill (cr);
                }
-               cairo_set_source (cr, fill_pattern);
+       }
+
+       if (_pixbuf) {
+
+               double x,y;
+               x = (get_width() - _pixbuf->get_width())/2.0;
+               y = (get_height() - _pixbuf->get_height())/2.0;
+
+               cairo_rectangle (cr, x, y, _pixbuf->get_width(), _pixbuf->get_height());
+               gdk_cairo_set_source_pixbuf (cr, _pixbuf->gobj(), x, y);
                cairo_fill (cr);
        }
 
        /* text, if any */
 
+       int text_margin;
+
+       if (get_width() < 75) {
+               text_margin = 3;
+       } else {
+               text_margin = 10;
+       }
+
        if ((_elements & Text) && !_text.empty()) {
-               cairo_set_source_rgba (cr, text_r, text_g, text_b, text_a);
+
+               cairo_new_path (cr);    
 
                if (_elements & Indicator) {
                        if (_led_left) {
-                               cairo_move_to (cr, _diameter + 3 + 4, _height/2.0 - _text_height/2.0);
+                               cairo_move_to (cr, text_margin + _diameter + 4, get_height()/2.0 - _text_height/2.0);
                        } else {
-                               cairo_move_to (cr, 3, _height/2.0 - _text_height/2.0);
+                               cairo_move_to (cr, text_margin, get_height()/2.0 - _text_height/2.0);
                        }
                } else {
                        /* center text */
-                       cairo_move_to (cr, (_width - _text_width)/2.0, _height/2.0 - _text_height/2.0);
+                       cairo_move_to (cr, (get_width() - _text_width)/2.0, get_height()/2.0 - _text_height/2.0);
                }
 
+               cairo_set_source_rgba (cr, text_r, text_g, text_b, text_a);
                pango_cairo_show_layout (cr, _layout->gobj());
-       }
+       } 
 
        if (_elements & Indicator) {
 
                /* move to the center of the indicator/led */
-               
-               if (_led_left) {
-                       cairo_translate (cr, 3 + (_diameter/2.0), _height/2.0);
+
+               cairo_save (cr);
+
+               if (_elements & Text) {
+                       if (_led_left) {
+                               cairo_translate (cr, text_margin + (_diameter/2.0), get_height()/2.0);
+                       } else {
+                               cairo_translate (cr, get_width() - ((_diameter/2.0) + 4.0), get_height()/2.0);
+                       }
                } else {
-                       cairo_translate (cr, _width - ((_diameter/2.0) + 4.0), _height/2.0);
+                       cairo_translate (cr, get_width()/2.0, get_height()/2.0);
                }
                
                //inset
@@ -173,23 +272,39 @@ ArdourButton::render (cairo_t* cr)
                cairo_arc (cr, 0, 0, _diameter/2-3, 0, 2 * M_PI);
                cairo_set_source (cr, reflection_pattern);
                cairo_fill (cr);
+
+               cairo_restore (cr);
+
        }
-}
 
-void
-ArdourButton::state_handler ()
-{
-       set_colors ();
+
+       /* a partially transparent gray layer to indicate insensitivity */
+
+       if ((visual_state() & Gtkmm2ext::Insensitive)) {
+               rounded_function (cr, 0, 0, get_width(), get_height(), _corner_radius);
+               cairo_set_source_rgba (cr, 0.905, 0.917, 0.925, 0.5);
+               cairo_fill (cr);
+       }
+
+       /* if requested, show hovering */
+       
+       if (ARDOUR::Config->get_widget_prelight()) {
+               if (_hovering) {
+                       rounded_function (cr, 0, 0, get_width(), get_height(), _corner_radius);
+                       cairo_set_source_rgba (cr, 0.905, 0.917, 0.925, 0.2);
+                       cairo_fill (cr);
+               }
+       }
 }
 
 void
 ArdourButton::set_diameter (float d)
 {
-        _diameter = (d*2) + 5.0;
+       _diameter = (d*2) + 5.0;
 
-        if (_diameter != 0.0) {
-                _fixed_diameter = true;
-        }
+       if (_diameter != 0.0) {
+               _fixed_diameter = true;
+       }
 
        set_colors ();
 }
@@ -207,17 +322,41 @@ ArdourButton::on_size_request (Gtk::Requisition* req)
        int xpad = 0;
        int ypad = 6;
 
-       if (!_text.empty()) {
+       CairoWidget::on_size_request (req);
+
+       if ((_elements & Text) && !_text.empty()) {
                _layout->get_pixel_size (_text_width, _text_height);
-               xpad += 6;
+               if (_text_width + _diameter < 75) {
+                       xpad = 7;
+               } else {
+                       xpad = 20;
+               }
+       } else {
+               _text_width = 0;
+               _text_height = 0;
        }
-               
-        if (_fixed_diameter) {
-                req->width = _text_width + (int) _diameter + xpad;
-                req->height = max (_text_height, (int) _diameter) + ypad;
+
+       if (_pixbuf) {
+               xpad = 6;
+       }
+
+        if ((_elements & Indicator) && _fixed_diameter) {
+               if (_pixbuf) {
+                       req->width = _pixbuf->get_width() + lrint (_diameter) + xpad;
+                       req->height = max (_pixbuf->get_height(), (int) lrint (_diameter)) + ypad;
+               } else {
+                       req->width = _text_width + lrint (_diameter) + xpad;
+                       req->height = max (_text_height, (int) lrint (_diameter)) + ypad;
+               }
         } else {
-                CairoWidget::on_size_request (req);
-        }
+               if (_pixbuf) {
+                       req->width = _pixbuf->get_width() + xpad;
+                       req->height = _pixbuf->get_height() + ypad;
+               }  else {
+                       req->width = _text_width + xpad;
+                       req->height = _text_height + ypad;
+               }
+       }
 }
 
 void
@@ -235,17 +374,18 @@ ArdourButton::set_colors ()
        
        if (edge_pattern) {
                cairo_pattern_destroy (edge_pattern);
+               edge_pattern = 0;
        }
 
        if (_elements & Edge) {
 
-               edge_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, _height);
-               if (visual_state() & CairoWidget::Selected) {
-                       start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 border start selected", get_name()));
-                       end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 border end selected", get_name()));
+               edge_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, get_height());
+               if (visual_state() & Gtkmm2ext::Selected) {
+                       start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: border start selected", get_name()));
+                       end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: border end selected", get_name()));
                } else {
-                       start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 border start", get_name()));
-                       end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 border end", get_name()));
+                       start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: border start", get_name()));
+                       end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: border end", get_name()));
                }
                UINT_TO_RGBA (start_color, &r, &g, &b, &a);
                cairo_pattern_add_color_stop_rgba (edge_pattern, 0, r/255.0,g/255.0,b/255.0, 0.7);
@@ -253,31 +393,39 @@ ArdourButton::set_colors ()
                cairo_pattern_add_color_stop_rgba (edge_pattern, 1, r/255.0,g/255.0,b/255.0, 0.7);
        }
 
+       if (active_pattern) {
+               cairo_pattern_destroy (active_pattern);
+               active_pattern = 0;
+       }
 
-       /* the fill pattern is used to indicate Normal/Active/Mid state
-        */
-
-       if (fill_pattern) {
-               cairo_pattern_destroy (fill_pattern);
+       if (inactive_pattern) {
+               cairo_pattern_destroy (inactive_pattern);
+               inactive_pattern = 0;
        }
 
        if (_elements & Body) {
-               fill_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, _height);
-               
-               if (active_state() == Mid) {
-                       start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 fill start mid", get_name()));
-                       end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 fill end mid", get_name()));
-               } else if (active_state() == Active) {
-                       start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 fill start active", get_name()));
-                       end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 fill end active", get_name()));
-               } else {
-                       start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 fill start", get_name()));
-                       end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 fill end", get_name()));
-               }
+
+               active_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, get_height());
+               start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill start active", get_name()));
+               end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill end active", get_name()));
+               UINT_TO_RGBA (start_color, &r, &g, &b, &a);
+
+               active_r = r/255.0;
+               active_g = g/255.0;
+               active_b = b/255.0;
+               active_a = a/255.0;
+
+               cairo_pattern_add_color_stop_rgba (active_pattern, 0, r/255.0,g/255.0,b/255.0, a/255.0);
+               UINT_TO_RGBA (end_color, &r, &g, &b, &a);
+               cairo_pattern_add_color_stop_rgba (active_pattern, 1, r/255.0,g/255.0,b/255.0, a/255.0);
+
+               inactive_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, get_height());
+               start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill start", get_name()));
+               end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill end", get_name()));
                UINT_TO_RGBA (start_color, &r, &g, &b, &a);
-               cairo_pattern_add_color_stop_rgba (fill_pattern, 0, r/255.0,g/255.0,b/255.0, a/255.0);
+               cairo_pattern_add_color_stop_rgba (inactive_pattern, 0, r/255.0,g/255.0,b/255.0, a/255.0);
                UINT_TO_RGBA (end_color, &r, &g, &b, &a);
-               cairo_pattern_add_color_stop_rgba (fill_pattern, 1, r/255.0,g/255.0,b/255.0, a/255.0);
+               cairo_pattern_add_color_stop_rgba (inactive_pattern, 1, r/255.0,g/255.0,b/255.0, a/255.0);
        }
 
        if (led_inset_pattern) {
@@ -298,17 +446,14 @@ ArdourButton::set_colors ()
                cairo_pattern_add_color_stop_rgba (reflection_pattern, 1, 1,1,1, 0.0);
        }
        
-       /* text and LED colors depend on Active/Normal/Mid */
-
-       if (active_state() == Active) {
-               text_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 text active", get_name()));
-               led_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 led active", get_name()));
-       } else if (active_state() == Mid) {
-               text_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 text mid", get_name()));
-               led_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 led active", get_name()));
+       /* text and LED colors */
+
+       if (active_state() == Gtkmm2ext::ExplicitActive) {
+               text_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: text active", get_name()));
+               led_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: led active", get_name()));
        } else {
-               text_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 text", get_name()));
-               led_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 led", get_name()));
+               text_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: text", get_name()));
+               led_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: led", get_name()));
        }
 
        UINT_TO_RGBA (text_color, &r, &g, &b, &a);
@@ -322,7 +467,7 @@ ArdourButton::set_colors ()
        led_b = b/255.0;
        led_a = a/255.0;
 
-        set_dirty ();
+       set_dirty ();
 }
 
 void
@@ -334,23 +479,24 @@ ArdourButton::set_led_left (bool yn)
 bool
 ArdourButton::on_button_press_event (GdkEventButton *ev)
 {
-       if ((_elements & Indicator) && _distinct_led_click) {
-               /* if within LED, swallow event */
-               
-               int top = lrint (_height/2.0 - _diameter/2.0);
-               int bottom = lrint (_height/2.0 + _diameter/2.0);
-               int left;
-               int right;
-               
-               if (_led_left) {
-                       left = 4;
-                       right = left + _diameter;
-               } else {
-                       left = lrint (_width - 4 - _diameter/2.0);
-                       right = left + _diameter;
+       if ((_elements & Indicator) && _led_rect && _distinct_led_click) {
+               if (ev->x >= _led_rect->x && ev->x < _led_rect->x + _led_rect->width && 
+                   ev->y >= _led_rect->y && ev->y < _led_rect->y + _led_rect->height) {
+                       return true;
                }
+       }
 
-               if (ev->x >= left && ev->x <= right && ev->y <= bottom && ev->y >= top) {
+       if (_tweaks & ShowClick) {
+               set_active_state (Gtkmm2ext::ExplicitActive);
+       }
+
+       if (binding_proxy.button_press_handler (ev)) {
+               return true;
+       }
+
+       if (!_act_on_release) {
+               if (_action) {
+                       _action->activate ();
                        return true;
                }
        }
@@ -361,29 +507,28 @@ ArdourButton::on_button_press_event (GdkEventButton *ev)
 bool
 ArdourButton::on_button_release_event (GdkEventButton *ev)
 {
+       if ((_elements & Indicator) && _led_rect && _distinct_led_click) {
+               if (ev->x >= _led_rect->x && ev->x < _led_rect->x + _led_rect->width && 
+                   ev->y >= _led_rect->y && ev->y < _led_rect->y + _led_rect->height) {
+                       signal_led_clicked(); /* EMIT SIGNAL */
+                       return true;
+               }
+       }
 
-       if ((_elements & Indicator) && _distinct_led_click) {
+       if (_tweaks & ShowClick) {
+               unset_active_state ();
+       }
 
-               /* if within LED, emit signal */
+       signal_clicked ();
 
-               int top = lrint (_height/2.0 - _diameter/2.0);
-               int bottom = lrint (_height/2.0 + _diameter/2.0);
-               int left;
-               int right;
-               if (_led_left) {
-                       left = 4;
-                       right = left + _diameter;
-               } else {
-                       left = lrint (_width - 4 - _diameter/2.0);
-                       right = left + _diameter;
-               }
-               
-               if (ev->x >= left && ev->x <= right && ev->y <= bottom && ev->y >= top) {
-                       signal_led_clicked(); /* EMIT SIGNAL */
+       if (_act_on_release) {
+               if (_action) {
+                       _action->activate ();
                        return true;
                }
        }
 
+
        return false;
 }
 
@@ -391,6 +536,7 @@ void
 ArdourButton::set_distinct_led_click (bool yn)
 {
        _distinct_led_click = yn;
+       setup_led_rect ();
 }
 
 void
@@ -404,5 +550,217 @@ void
 ArdourButton::on_size_allocate (Allocation& alloc)
 {
        CairoWidget::on_size_allocate (alloc);
+       setup_led_rect ();
+       set_colors ();
+}
+
+void
+ArdourButton::set_controllable (boost::shared_ptr<Controllable> c)
+{
+        watch_connection.disconnect ();
+        binding_proxy.set_controllable (c);
+}
+
+void
+ArdourButton::watch ()
+{
+        boost::shared_ptr<Controllable> c (binding_proxy.get_controllable ());
+
+        if (!c) {
+                warning << _("button cannot watch state of non-existing Controllable\n") << endmsg;
+                return;
+        }
+
+        c->Changed.connect (watch_connection, invalidator(*this), boost::bind (&ArdourButton::controllable_changed, this), gui_context());
+}
+
+void
+ArdourButton::controllable_changed ()
+{
+        float val = binding_proxy.get_controllable()->get_value();
+
+       if (fabs (val) >= 0.5f) {
+               set_active_state (Gtkmm2ext::ExplicitActive);
+       } else {
+               unset_active_state ();
+       }
+}
+
+void
+ArdourButton::set_related_action (RefPtr<Action> act)
+{
+       Gtkmm2ext::Activatable::set_related_action (act);
+
+       if (_action) {
+
+               action_tooltip_changed ();
+
+               Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (_action);
+               if (tact) {
+                       action_toggled ();
+                       tact->signal_toggled().connect (sigc::mem_fun (*this, &ArdourButton::action_toggled));
+               } 
+
+               _action->connect_property_changed ("sensitive", sigc::mem_fun (*this, &ArdourButton::action_sensitivity_changed));
+               _action->connect_property_changed ("visible", sigc::mem_fun (*this, &ArdourButton::action_visibility_changed));
+               _action->connect_property_changed ("tooltip", sigc::mem_fun (*this, &ArdourButton::action_tooltip_changed));
+       }
+}
+
+void
+ArdourButton::action_toggled ()
+{
+       Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (_action);
+
+       if (tact) {
+               if (tact->get_active()) {
+                       set_active_state (Gtkmm2ext::ExplicitActive);
+               } else {
+                       unset_active_state ();
+               }
+       }
+}      
+
+void
+ArdourButton::on_style_changed (const RefPtr<Gtk::Style>&)
+{
+       set_colors ();
+}
+
+void
+ArdourButton::setup_led_rect ()
+{
+       int text_margin;
+
+       if (get_width() < 75) {
+               text_margin = 3;
+       } else {
+               text_margin = 10;
+       }
+
+       if (_elements & Indicator) {
+               _led_rect = new cairo_rectangle_t;
+               
+               if (_elements & Text) {
+                       if (_led_left) {
+                               _led_rect->x = text_margin;
+                       } else {
+                               _led_rect->x = get_width() - text_margin - _diameter/2.0;
+                       }
+               } else {
+                       /* centered */
+                       _led_rect->x = get_width()/2.0 - _diameter/2.0;
+               }
+
+               _led_rect->y = get_height()/2.0 - _diameter/2.0;
+               _led_rect->width = _diameter;
+               _led_rect->height = _diameter;
+
+       } else {
+               delete _led_rect;
+               _led_rect = 0;
+       }
+}
+
+void
+ArdourButton::set_image (const RefPtr<Gdk::Pixbuf>& img)
+{
+       _pixbuf = img;
+       queue_draw ();
+}
+
+void
+ArdourButton::set_active_state (Gtkmm2ext::ActiveState s)
+{
+       bool changed = (_active_state != s);
+       CairoWidget::set_active_state (s);
+       if (changed) {
+               set_colors ();
+       }
+}
+       
+void
+ArdourButton::set_visual_state (Gtkmm2ext::VisualState s)
+{
+       bool changed = (_visual_state != s);
+       CairoWidget::set_visual_state (s);
+       if (changed) {
+               set_colors ();
+       }
+}
+       
+bool
+ArdourButton::on_enter_notify_event (GdkEventCrossing* ev)
+{
+       _hovering = true;
+
+       if (ARDOUR::Config->get_widget_prelight()) {
+               queue_draw ();
+       }
+
+       return CairoWidget::on_enter_notify_event (ev);
+}
+
+bool
+ArdourButton::on_leave_notify_event (GdkEventCrossing* ev)
+{
+       _hovering = false;
+
+       if (ARDOUR::Config->get_widget_prelight()) {
+               queue_draw ();
+       }
+
+       return CairoWidget::on_leave_notify_event (ev);
+}
+
+void
+ArdourButton::set_tweaks (Tweaks t)
+{
+       if (_tweaks != t) {
+               _tweaks = t;
+               queue_draw ();
+       }
+}
+
+void
+ArdourButton::action_sensitivity_changed ()
+{
+       if (_action->property_sensitive ()) {
+               set_visual_state (Gtkmm2ext::VisualState (visual_state() & ~Gtkmm2ext::Insensitive));
+       } else {
+               set_visual_state (Gtkmm2ext::VisualState (visual_state() | Gtkmm2ext::Insensitive));
+       }
+       
+}
+
+
+void
+ArdourButton::action_visibility_changed ()
+{
+       if (_action->property_visible ()) {
+               show ();
+       } else {
+               hide ();
+       }
+}
+
+void
+ArdourButton::action_tooltip_changed ()
+{
+       string str = _action->property_tooltip().get_value();
+       ARDOUR_UI::instance()->set_tip (*this, str);
+}
+
+void
+ArdourButton::set_rounded_corner_mask (int mask)
+{
+       _corner_mask = mask;
+       queue_draw ();
+}
+
+void
+ArdourButton::set_elements (Element e)
+{
+       _elements = e;
        set_colors ();
 }