add VU and IEC meter DSP (from jmeters)
[ardour.git] / gtk2_ardour / shuttle_control.cc
index 3a0572cd69ec17fdd9043db2b1d1bf790213e930..1d150f73d67511ff8a60ab838e0820a3376e601c 100644 (file)
@@ -18,7 +18,7 @@
 
 #include <algorithm>
 
-#include <cairo/cairo.h>
+#include <cairo.h>
 
 #include "ardour/ardour.h"
 #include "ardour/audioengine.h"
 
 #include "gtkmm2ext/keyboard.h"
 #include "gtkmm2ext/gui_thread.h"
+#include "gtkmm2ext/cairocell.h"
+#include "gtkmm2ext/utils.h"
+#include "gtkmm2ext/rgb_macros.h"
 
+#include "actions.h"
 #include "ardour_ui.h"
+#include "rgb_macros.h"
 #include "shuttle_control.h"
 
 #include "i18n.h"
@@ -51,6 +56,7 @@ ShuttleControl::ShuttleControl ()
        ARDOUR_UI::instance()->set_tip (*this, _("Shuttle speed control (Context-click for options)"));
 
        pattern = 0;
+       shine_pattern = 0;
        last_shuttle_request = 0;
        last_speed_displayed = -99999999;
        shuttle_grabbed = false;
@@ -60,13 +66,14 @@ ShuttleControl::ShuttleControl ()
        shuttle_style_menu = 0;
        shuttle_unit_menu = 0;
        shuttle_context_menu = 0;
+       _hovering = false;
 
        set_flags (CAN_FOCUS);
        add_events (Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::BUTTON_PRESS_MASK|Gdk::POINTER_MOTION_MASK|Gdk::SCROLL_MASK);
-       set_size_request (100, 15);
+       set_size_request (85, 20);
        set_name (X_("ShuttleControl"));
 
-       Config->ParameterChanged.connect (parameter_connection, MISSING_INVALIDATOR, ui_bind (&ShuttleControl::parameter_changed, this, _1), gui_context());
+       Config->ParameterChanged.connect (parameter_connection, MISSING_INVALIDATOR, boost::bind (&ShuttleControl::parameter_changed, this, _1), gui_context());
 
        /* gtkmm 2.4: the C++ wrapper doesn't work */
        g_signal_connect ((GObject*) gobj(), "query-tooltip", G_CALLBACK (qt), NULL);
@@ -76,6 +83,7 @@ ShuttleControl::ShuttleControl ()
 ShuttleControl::~ShuttleControl ()
 {
        cairo_pattern_destroy (pattern);
+       cairo_pattern_destroy (shine_pattern);
 }
 
 void
@@ -97,17 +105,26 @@ ShuttleControl::on_size_allocate (Gtk::Allocation& alloc)
        if (pattern) {
                cairo_pattern_destroy (pattern);
                pattern = 0;
-       }
-
-       pattern = cairo_pattern_create_linear (0, 0, alloc.get_width(), alloc.get_height());
-       
-       /* add 3 color stops */
-
-       cairo_pattern_add_color_stop_rgb (pattern, 0.0, 0, 0, 0);
-       cairo_pattern_add_color_stop_rgb (pattern, 0.5, 0.0, 0.0, 1.0);
-       cairo_pattern_add_color_stop_rgb (pattern, 1.0, 0, 0, 0);
-
-       DrawingArea::on_size_allocate (alloc);
+               cairo_pattern_destroy (shine_pattern);
+               shine_pattern = 0;
+       }
+
+       CairoWidget::on_size_allocate ( alloc);
+
+       //background
+       pattern = cairo_pattern_create_linear (0, 0, 0, alloc.get_height());
+       uint32_t col = ARDOUR_UI::config()->get_canvasvar_Shuttle();
+       int r,b,g,a;
+       UINT_TO_RGBA(col, &r, &g, &b, &a);
+       cairo_pattern_add_color_stop_rgb (pattern, 0.0, r/400.0, g/400.0, b/400.0);
+       cairo_pattern_add_color_stop_rgb (pattern, 0.4, r/255.0, g/255.0, b/255.0);
+       cairo_pattern_add_color_stop_rgb (pattern, 1.0, r/512.0, g/512.0, b/512.0);
+
+       //reflection
+       shine_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, 10);
+       cairo_pattern_add_color_stop_rgba (shine_pattern, 0, 1,1,1,0.0);
+       cairo_pattern_add_color_stop_rgba (shine_pattern, 0.2, 1,1,1,0.4);
+       cairo_pattern_add_color_stop_rgba (shine_pattern, 1, 1,1,1,0.1);
 }
 
 void
@@ -144,7 +161,7 @@ ShuttleControl::build_shuttle_context_menu ()
        Menu* units_menu = manage (new Menu);
        MenuList& units_items = units_menu->items();
        RadioMenuItem::Group units_group;
-        
+
        units_items.push_back (RadioMenuElem (units_group, _("Percent"), sigc::bind (sigc::mem_fun (*this, &ShuttleControl::set_shuttle_units), Percentage)));
        if (Config->get_shuttle_units() == Percentage) {
                static_cast<RadioMenuItem*>(&units_items.back())->set_active();
@@ -154,7 +171,7 @@ ShuttleControl::build_shuttle_context_menu ()
                static_cast<RadioMenuItem*>(&units_items.back())->set_active();
        }
        items.push_back (MenuElem (_("Units"), *units_menu));
-        
+
        Menu* style_menu = manage (new Menu);
        MenuList& style_items = style_menu->items();
        RadioMenuItem::Group style_group;
@@ -167,7 +184,7 @@ ShuttleControl::build_shuttle_context_menu ()
        if (Config->get_shuttle_behaviour() == Wheel) {
                static_cast<RadioMenuItem*>(&style_items.back())->set_active();
        }
-        
+
        items.push_back (MenuElem (_("Mode"), *style_menu));
 
        RadioMenuItem::Group speed_group;
@@ -198,7 +215,7 @@ ShuttleControl::build_shuttle_context_menu ()
        }
 
        items.push_back (MenuElem (_("Maximum speed"), *speed_menu));
-        
+
 }
 
 void
@@ -235,10 +252,19 @@ ShuttleControl::on_button_press_event (GdkEventButton* ev)
 
        switch (ev->button) {
        case 1:
-               add_modal_grab ();
-               shuttle_grabbed = true;
-               shuttle_speed_on_grab = _session->transport_speed ();
-               mouse_shuttle (ev->x, true);
+               if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
+                       if (_session->transport_rolling()) {
+                               _session->request_transport_speed (1.0);
+                       }
+               } else {
+                       add_modal_grab ();
+                       shuttle_grabbed = true;
+                       shuttle_speed_on_grab = _session->transport_speed ();
+                       mouse_shuttle (ev->x, true);
+                       gdk_pointer_grab(ev->window,false,
+                                       GdkEventMask( Gdk::POINTER_MOTION_MASK | Gdk::BUTTON_PRESS_MASK |Gdk::BUTTON_RELEASE_MASK),
+                                       NULL,NULL,ev->time);
+               }
                break;
 
        case 2:
@@ -259,21 +285,26 @@ ShuttleControl::on_button_release_event (GdkEventButton* ev)
 
        switch (ev->button) {
        case 1:
-               shuttle_grabbed = false;
-               remove_modal_grab ();
-
-               if (Config->get_shuttle_behaviour() == Sprung) {
-                       _session->request_transport_speed (shuttle_speed_on_grab);
-               } else {
-                       mouse_shuttle (ev->x, true);
+               if (shuttle_grabbed) {
+                       shuttle_grabbed = false;
+                       remove_modal_grab ();
+                       gdk_pointer_ungrab (GDK_CURRENT_TIME);
+                       
+                       if (Config->get_shuttle_behaviour() == Sprung) {
+                               if (shuttle_speed_on_grab == 0 ) {
+                                       _session->request_transport_speed (1.0);
+                               }
+                               _session->request_transport_speed (shuttle_speed_on_grab);
+                       } else {
+                               mouse_shuttle (ev->x, true);
+                       }
                }
-
                return true;
 
        case 2:
                if (_session->transport_rolling()) {
-                       _session->request_transport_speed (1.0);
-               } 
+                       _session->request_transport_speed (1.0, Config->get_shuttle_behaviour() == Wheel);
+               }
                return true;
 
        case 3:
@@ -298,20 +329,42 @@ ShuttleControl::on_scroll_event (GdkEventScroll* ev)
                return true;
        }
 
+       bool semis = (Config->get_shuttle_units() == Semitones);
+
        switch (ev->direction) {
        case GDK_SCROLL_UP:
        case GDK_SCROLL_RIGHT:
-               shuttle_fract += 0.005;
+               if (semis) {
+                       if (shuttle_fract == 0) {
+                               shuttle_fract = semitones_as_fract (1, false);
+                       } else {
+                               bool rev;
+                               int st = fract_as_semitones (shuttle_fract, rev);
+                               shuttle_fract = semitones_as_fract (st + 1, rev);
+                       }
+               } else {
+                       shuttle_fract += 0.00125;
+               }
                break;
        case GDK_SCROLL_DOWN:
        case GDK_SCROLL_LEFT:
-               shuttle_fract -= 0.005;
+               if (semis) {
+                       if (shuttle_fract == 0) {
+                               shuttle_fract = semitones_as_fract (1, true);
+                       } else {
+                               bool rev;
+                               int st = fract_as_semitones (shuttle_fract, rev);
+                               shuttle_fract = semitones_as_fract (st - 1, rev);
+                       }
+               } else {
+                       shuttle_fract -= 0.00125;
+               }
                break;
        default:
                return false;
        }
-        
-       if (Config->get_shuttle_units() == Semitones) {
+       
+       if (semis) {
 
                float lower_side_of_dead_zone = semitones_as_fract (-24, true);
                float upper_side_of_dead_zone = semitones_as_fract (-24, false);
@@ -365,7 +418,7 @@ ShuttleControl::mouse_shuttle (double x, bool force)
        }
 
        /* compute shuttle fract as expressing how far between the center
-          and the edge we are. positive values indicate we are right of 
+          and the edge we are. positive values indicate we are right of
           center, negative values indicate left of center
        */
 
@@ -375,10 +428,10 @@ ShuttleControl::mouse_shuttle (double x, bool force)
 }
 
 void
-ShuttleControl::set_shuttle_fract (double f)
+ShuttleControl::set_shuttle_fract (double f, bool zero_ok)
 {
        shuttle_fract = f;
-       use_shuttle_fract (false);
+       use_shuttle_fract (false, zero_ok);
 }
 
 int
@@ -393,7 +446,7 @@ ShuttleControl::speed_as_semitones (float speed, bool& reverse)
                reverse = false;
                return (int) round (12.0 * fast_log2 (speed));
        }
-}        
+}
 
 float
 ShuttleControl::semitones_as_speed (int semi, bool reverse)
@@ -420,7 +473,7 @@ ShuttleControl::fract_as_semitones (float fract, bool& reverse)
 }
 
 void
-ShuttleControl::use_shuttle_fract (bool force)
+ShuttleControl::use_shuttle_fract (bool force, bool zero_ok)
 {
        microseconds_t now = get_microseconds();
 
@@ -451,24 +504,24 @@ ShuttleControl::use_shuttle_fract (bool force)
                speed = shuttle_max_speed * shuttle_fract;
        }
 
-       _session->request_transport_speed_nonzero (speed);
+       if (zero_ok) {
+               _session->request_transport_speed (speed, Config->get_shuttle_behaviour() == Wheel);
+       } else {
+               _session->request_transport_speed_nonzero (speed, Config->get_shuttle_behaviour() == Wheel);
+       }
 }
 
-bool
-ShuttleControl::on_expose_event (GdkEventExpose* event)
+void
+ShuttleControl::render (cairo_t* cr)
 {
        cairo_text_extents_t extents;
-       Glib::RefPtr<Gdk::Window> win (get_window());
-       Glib::RefPtr<Gtk::Style> style (get_style());
-
-       cairo_t* cr = gdk_cairo_create (win->gobj());   
 
-       cairo_set_source (cr, pattern);
-       cairo_rectangle (cr, 0.0, 0.0, get_width(), get_height());
-       cairo_fill_preserve (cr);
-
-       cairo_set_source_rgb (cr, 0, 0, 0.0);
-       cairo_stroke (cr);
+       //black border
+       cairo_set_source_rgb (cr, 0, 0.0, 0.0);
+       rounded_rectangle (cr, 0, 0, get_width(), get_height(), 4);
+//     cairo_fill_preserve (cr);
+//     cairo_stroke (cr);
+       cairo_fill (cr);
 
        float speed = 0.0;
 
@@ -477,12 +530,23 @@ ShuttleControl::on_expose_event (GdkEventExpose* event)
        }
 
        /* Marker */
-
-       double visual_fraction = std::min (1.0f, speed/shuttle_max_speed);
-       double x = (get_width() / 2.0) + (0.5 * (get_width() * visual_fraction));
-       cairo_move_to (cr, x, 1);
-       cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
-       cairo_line_to (cr, x, get_height()-1);
+       float visual_fraction = std::min (1.0f, speed/shuttle_max_speed);
+       float marker_size = get_height()-4;
+       float avail_width = get_width() - marker_size;
+       float x = get_width()*0.5 + visual_fraction * avail_width*0.5;
+       float offset = x - marker_size*0.5;
+//     cairo_set_source_rgb (cr, 0, 1, 0.0);
+       cairo_set_source (cr, pattern);
+       if (speed == 1.0) {
+               cairo_move_to( cr, offset-4, 2);
+               cairo_line_to( cr, offset+4, 2+marker_size*0.5);
+               cairo_line_to( cr, offset-4, 2+marker_size);
+               cairo_line_to( cr, offset-4, 2);
+       } else if ( speed ==0.0 )
+               rounded_rectangle (cr, offset, 4, marker_size-2, marker_size-2, 1);
+       else
+               cairo_arc (cr, offset + marker_size*0.5, 2 + marker_size*0.5, marker_size*0.5, 0, 360);
+       cairo_set_line_width (cr, 2);
        cairo_stroke (cr);
 
        /* speed text */
@@ -494,7 +558,7 @@ ShuttleControl::on_expose_event (GdkEventExpose* event)
                if (Config->get_shuttle_units() == Percentage) {
 
                        if (speed == 1.0) {
-                               snprintf (buf, sizeof (buf), _("Playing"));
+                               snprintf (buf, sizeof (buf), "%s", _("Playing"));
                        } else {
                                if (speed < 0.0) {
                                        snprintf (buf, sizeof (buf), "<<< %d%%", (int) round (-speed * 100));
@@ -516,14 +580,15 @@ ShuttleControl::on_expose_event (GdkEventExpose* event)
                }
 
        } else {
-               snprintf (buf, sizeof (buf), _("Stopped"));
+               snprintf (buf, sizeof (buf), "%s", _("Stopped"));
        }
 
        last_speed_displayed = speed;
 
-       cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
+       cairo_set_source_rgb (cr, 0.6, 0.6, 0.6);
        cairo_text_extents (cr, buf, &extents);
-       cairo_move_to (cr, 10, extents.height + 2);
+       cairo_move_to (cr, 10, extents.height + 4);
+       cairo_set_font_size (cr, 13.0);
        cairo_show_text (cr, buf);
 
        /* style text */
@@ -531,21 +596,32 @@ ShuttleControl::on_expose_event (GdkEventExpose* event)
 
        switch (Config->get_shuttle_behaviour()) {
        case Sprung:
-               snprintf (buf, sizeof (buf), _("Sprung"));
+               snprintf (buf, sizeof (buf), "%s", _("Sprung"));
                break;
        case Wheel:
-               snprintf (buf, sizeof (buf), _("Wheel"));
+               snprintf (buf, sizeof (buf), "%s", _("Wheel"));
                break;
        }
 
        cairo_text_extents (cr, buf, &extents);
-
-       cairo_move_to (cr, get_width() - (fabs(extents.x_advance) + 5), extents.height + 2);
+       cairo_move_to (cr, get_width() - (fabs(extents.x_advance) + 5), extents.height + 4);
        cairo_show_text (cr, buf);
 
-       cairo_destroy (cr);
+       float _corner_radius = 4.0;
 
-       return true;
+/*     //reflection
+       float rheight = 10.0;
+       Gtkmm2ext::rounded_rectangle (cr, 2, 1, get_width()-4, rheight, _corner_radius);
+       cairo_set_source (cr, shine_pattern);
+       cairo_fill (cr);
+*/
+       if (ARDOUR::Config->get_widget_prelight()) {
+               if (_hovering) {
+                       rounded_rectangle (cr, 1, 1, get_width()-2, get_height()-2, _corner_radius);
+                       cairo_set_source_rgba (cr, 1, 1, 1, 0.2);
+                       cairo_fill (cr);
+               }
+       }
 }
 
 void
@@ -576,41 +652,23 @@ ShuttleControl::update_speed_display ()
                queue_draw ();
        }
 }
-      
+
 ShuttleControl::ShuttleControllable::ShuttleControllable (ShuttleControl& s)
-       : PBD::Controllable (X_("Shuttle")) 
+       : PBD::Controllable (X_("Shuttle"))
        , sc (s)
 {
 }
 
-void
-ShuttleControl::ShuttleControllable::set_id (const std::string& str)
-{
-       _id = str;
-}
-
 void
 ShuttleControl::ShuttleControllable::set_value (double val)
 {
-       double fract;
-        
-       if (val == 0.5) {
-               fract = 0.0;
-       } else {
-               if (val < 0.5) {
-                       fract = -((0.5 - val)/0.5);
-               } else {
-                       fract = ((val - 0.5)/0.5);
-               }
-       }
-
-       sc.set_shuttle_fract (fract);
+       sc.set_shuttle_fract ((val - lower()) / (upper() - lower()), true);
 }
 
-double 
+double
 ShuttleControl::ShuttleControllable::get_value () const
 {
-       return sc.get_shuttle_fract ();
+       return lower() + (sc.get_shuttle_fract () * (upper() - lower()));
 }
 
 void
@@ -626,6 +684,9 @@ ShuttleControl::parameter_changed (std::string p)
                                        if (_session->transport_speed() == 1.0) {
                                                queue_draw ();
                                        } else {
+                                               /* reset current speed and
+                                                  revert to 1.0 as the default
+                                               */
                                                _session->request_transport_speed (1.0);
                                                /* redraw when speed changes */
                                        }
@@ -639,8 +700,33 @@ ShuttleControl::parameter_changed (std::string p)
                        queue_draw ();
                        break;
                }
-                        
+
        } else if (p == "shuttle-units") {
                queue_draw ();
        }
 }
+
+
+bool
+ShuttleControl::on_enter_notify_event (GdkEventCrossing* ev)
+{
+       _hovering = true;
+
+       if (ARDOUR::Config->get_widget_prelight()) {
+               queue_draw ();
+       }
+
+       return CairoWidget::on_enter_notify_event (ev);
+}
+
+bool
+ShuttleControl::on_leave_notify_event (GdkEventCrossing* ev)
+{
+       _hovering = false;
+
+       if (ARDOUR::Config->get_widget_prelight()) {
+               queue_draw ();
+       }
+
+       return CairoWidget::on_leave_notify_event (ev);
+}