Add options to add sends from buses as well as tracks; remainder of #3637.
[ardour.git] / gtk2_ardour / stereo_panner.cc
index 4d35a3ebe324ad6470a3a1bc0225aebf14863e37..2bb53e9c2344b6745fdbdede4d05f26b9c392f01 100644 (file)
@@ -22,6 +22,8 @@
 #include <cstring>
 #include <cmath>
 
+#include <gtkmm/window.h>
+
 #include "pbd/controllable.h"
 #include "pbd/compose.h"
 
 #include "gtkmm2ext/keyboard.h"
 
 #include "ardour/panner.h"
+
+#include "ardour_ui.h"
+#include "global_signals.h"
 #include "stereo_panner.h"
+#include "rgb_macros.h"
 #include "utils.h"
 
 #include "i18n.h"
@@ -44,6 +50,10 @@ static const int lr_box_size = 15;
 static const int step_down = 10;
 static const int top_step = 2;
 
+StereoPanner::ColorScheme StereoPanner::colors[3];
+bool StereoPanner::have_colors = false;
+PBD::Signal0<void> StereoPanner::color_change;
+
 StereoPanner::StereoPanner (boost::shared_ptr<PBD::Controllable> position, boost::shared_ptr<PBD::Controllable> width)
         : position_control (position)
         , width_control (width)
@@ -52,6 +62,11 @@ StereoPanner::StereoPanner (boost::shared_ptr<PBD::Controllable> position, boost
         , drag_start_x (0)
         , last_drag_x (0)
 {
+        if (!have_colors) {
+                set_colors ();
+                have_colors = true;
+        }
+
         position_control->Changed.connect (connections, invalidator(*this), boost::bind (&StereoPanner::value_change, this), gui_context());
         width_control->Changed.connect (connections, invalidator(*this), boost::bind (&StereoPanner::value_change, this), gui_context());
         set_tooltip ();
@@ -63,6 +78,8 @@ StereoPanner::StereoPanner (boost::shared_ptr<PBD::Controllable> position, boost
                     Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|
                     Gdk::SCROLL_MASK|
                     Gdk::POINTER_MOTION_MASK);
+
+        color_change.connect (connections, invalidator (*this), boost::bind (&DrawingArea::queue_draw, this), gui_context());
 }
 
 StereoPanner::~StereoPanner ()
@@ -73,13 +90,18 @@ void
 StereoPanner::set_tooltip ()
 {
         double pos = position_control->get_value(); // 0..1
-        double w = width_control->get_value (); // -1..+1
-        int lpos = (int) lrint ((pos - (w/2.0)) * 100.0);
-        int rpos = (int) lrint ((pos + (w/2.0)) * 100.0);
-                                
-        Gtkmm2ext::UI::instance()->set_tip (this, string_compose (_("L:%1 R:%2 Width: %3%%"), 
-                                                                  lpos, rpos,
-                                                                  (int) floor (w * 100.0)).c_str());
+        
+        /* the values displayed show the position of the center of the image, expressed as a stereo pair
+           that ranges from (100,0) (hard left) through (50,50) (hard center) to (0,100) (hard right).
+           the center of the image is halfway between the left and right positions.
+        */
+
+        Gtkmm2ext::UI::instance()->set_tip (this, 
+                                            string_compose (_("L:%1 R:%2 Width: %3%%\n\n0 -> set width to zero\n%4-uparrow -> set width to 1.0\n%4-downarrow -> set width to -1.0"), 
+                                                            (int) rint (100.0 * (1.0 - pos)),
+                                                            (int) rint (100.0 * pos),
+                                                            (int) floor (100.0 * width_control->get_value()),
+                                                            Keyboard::secondary_modifier_name()).c_str());
 }
 
 void
@@ -101,33 +123,46 @@ StereoPanner::on_expose_event (GdkEventExpose* ev)
         double pos = position_control->get_value (); /* 0..1 */
         double swidth = width_control->get_value (); /* -1..+1 */
         double fswidth = fabs (swidth);
+        uint32_t o, f, t, b;
+        State state;
 
         width = get_width();
         height = get_height ();
 
+        if (swidth == 0.0) {
+                state = Mono;
+        } else if (swidth < 0.0) {
+                state = Inverted;
+        } else { 
+                state = Normal;
+        }
+
+        o = colors[state].outline;
+        f = colors[state].fill;
+        t = colors[state].text;
+        b = colors[state].background;
+
         /* background */
 
-        cairo_set_source_rgb (cr, 0.184, 0.172, 0.172);
+        cairo_set_source_rgba (cr, UINT_RGBA_R_FLT(b), UINT_RGBA_G_FLT(b), UINT_RGBA_B_FLT(b), UINT_RGBA_A_FLT(b));
         cairo_rectangle (cr, 0, 0, width, height);
         cairo_fill (cr);
 
-        /* compute the outer edges of the L/R boxes based on the current stereo width */
+        /* compute the centers of the L/R boxes based on the current stereo width */
         
         int usable_width = width - lr_box_size;
-        int center = lr_box_size/2 + (int) floor (usable_width * pos);
-        int left = center - (int) floor (fswidth * usable_width / 2.0); // center of leftmost box
-        int right = center + (int) floor (fswidth * usable_width / 2.0); // center of rightmost box
-
-        // cerr << "pos " << pos << " width = " << width << " swidth = " << swidth << " center @ " << center << " L = " << left << " R = " << right << endl;
+        double center = (lr_box_size/2.0) + (usable_width * pos);
+        int left = lrint (center - (fswidth * usable_width / 2.0)); // center of leftmost box
+        int right = lrint (center +  (fswidth * usable_width / 2.0)); // center of rightmost box
 
         /* compute & draw the line through the box */
         
         cairo_set_line_width (cr, 2);
-       cairo_set_source_rgba (cr, 0.3137, 0.4431, 0.7843, 1.0);
-        cairo_move_to (cr, left, top_step+(pos_box_size/2)+step_down);
-        cairo_line_to (cr, left, top_step+(pos_box_size/2));
-        cairo_line_to (cr, right, top_step+(pos_box_size/2));
-        cairo_line_to (cr, right, top_step+(pos_box_size/2) + step_down);
+        cairo_set_source_rgba (cr, UINT_RGBA_R_FLT(o), UINT_RGBA_G_FLT(o), UINT_RGBA_B_FLT(o), UINT_RGBA_A_FLT(o));
+        cairo_move_to (cr, left-(lr_box_size/2), top_step+(pos_box_size/2)+step_down);
+        cairo_line_to (cr, left-(lr_box_size/2), top_step+(pos_box_size/2));
+        cairo_line_to (cr, right+(lr_box_size/2)+1, top_step+(pos_box_size/2));
+        cairo_line_to (cr, right+(lr_box_size/2)+1, top_step+(pos_box_size/2) + step_down);
         cairo_stroke (cr);
 
         if (swidth < 0.0) {
@@ -135,18 +170,19 @@ StereoPanner::on_expose_event (GdkEventExpose* ev)
                 swap (left, right);
         }
 
-        /* left box */
-
+        /* make left/right be the left edge of each box */
         left -= lr_box_size/2;
         right -= lr_box_size/2;
 
+        /* left box */
+
         cairo_rectangle (cr, 
                          left,
                          (lr_box_size/2)+step_down, 
                          lr_box_size, lr_box_size);
-       cairo_set_source_rgba (cr, 0.3137, 0.4431, 0.7843, 1.0);
+        cairo_set_source_rgba (cr, UINT_RGBA_R_FLT(o), UINT_RGBA_G_FLT(o), UINT_RGBA_B_FLT(o), UINT_RGBA_A_FLT(o));
         cairo_stroke_preserve (cr);
-       cairo_set_source_rgba (cr, 0.4509, 0.7686, 0.8627, 0.8);
+        cairo_set_source_rgba (cr, UINT_RGBA_R_FLT(f), UINT_RGBA_G_FLT(f), UINT_RGBA_B_FLT(f), UINT_RGBA_A_FLT(f));
        cairo_fill (cr);
         
         /* add text */
@@ -154,9 +190,11 @@ StereoPanner::on_expose_event (GdkEventExpose* ev)
         cairo_move_to (cr, 
                        left + 3,
                        (lr_box_size/2) + step_down + 13);
-       cairo_set_source_rgba (cr, 0.129, 0.054, 0.588, 1.0);
         cairo_select_font_face (cr, "sans-serif", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD);
-        cairo_show_text (cr, "L");
+        if (state != Mono) {
+                cairo_set_source_rgba (cr, UINT_RGBA_R_FLT(t), UINT_RGBA_G_FLT(t), UINT_RGBA_B_FLT(t), UINT_RGBA_A_FLT(t));
+                cairo_show_text (cr, _("L"));
+        }
 
         /* right box */
 
@@ -164,9 +202,9 @@ StereoPanner::on_expose_event (GdkEventExpose* ev)
                          right,
                          (lr_box_size/2)+step_down, 
                          lr_box_size, lr_box_size);
-       cairo_set_source_rgba (cr, 0.3137, 0.4431, 0.7843, 1.0);
+        cairo_set_source_rgba (cr, UINT_RGBA_R_FLT(o), UINT_RGBA_G_FLT(o), UINT_RGBA_B_FLT(o), UINT_RGBA_A_FLT(o));
         cairo_stroke_preserve (cr);
-       cairo_set_source_rgba (cr, 0.4509, 0.7686, 0.8627, 0.8);
+        cairo_set_source_rgba (cr, UINT_RGBA_R_FLT(f), UINT_RGBA_G_FLT(f), UINT_RGBA_B_FLT(f), UINT_RGBA_A_FLT(f));
        cairo_fill (cr);
 
         /* add text */
@@ -174,16 +212,20 @@ StereoPanner::on_expose_event (GdkEventExpose* ev)
         cairo_move_to (cr, 
                        right + 3,
                        (lr_box_size/2)+step_down + 13);
-       cairo_set_source_rgba (cr, 0.129, 0.054, 0.588, 1.0);
-        cairo_show_text (cr, "R");
+        cairo_set_source_rgba (cr, UINT_RGBA_R_FLT(t), UINT_RGBA_G_FLT(t), UINT_RGBA_B_FLT(t), UINT_RGBA_A_FLT(t));
+        if (state == Mono) {
+                cairo_show_text (cr, _("M"));
+        } else {
+                cairo_show_text (cr, _("R"));
+        }
 
         /* draw the central box */
 
         cairo_set_line_width (cr, 1);
-       cairo_rectangle (cr, center - (pos_box_size/2), top_step, pos_box_size, pos_box_size);
-       cairo_set_source_rgba (cr, 0.3137, 0.4431, 0.7843, 1.0);
+       cairo_rectangle (cr, lrint (center - (pos_box_size/2.0)), top_step, pos_box_size, pos_box_size);
+        cairo_set_source_rgba (cr, UINT_RGBA_R_FLT(o), UINT_RGBA_G_FLT(o), UINT_RGBA_B_FLT(o), UINT_RGBA_A_FLT(o));
         cairo_stroke_preserve (cr);
-       cairo_set_source_rgba (cr, 0.4509, 0.7686, 0.8627, 0.8);
+        cairo_set_source_rgba (cr, UINT_RGBA_R_FLT(f), UINT_RGBA_G_FLT(f), UINT_RGBA_B_FLT(f), UINT_RGBA_A_FLT(f));
        cairo_fill (cr);
 
         /* done */
@@ -207,10 +249,8 @@ StereoPanner::on_button_press_event (GdkEventButton* ev)
 
         if (ev->type == GDK_2BUTTON_PRESS) {
                 if (dragging_position) {
-                        cerr << "Reset pos\n";
                         position_control->set_value (0.5); // reset position to center
                 } else {
-                        cerr << "Reset width\n";
                         width_control->set_value (1.0); // reset position to full, LR
                 }
                 dragging = false;
@@ -299,16 +339,20 @@ StereoPanner::on_motion_notify_event (GdkEventMotion* ev)
                                 /* still left */
                                 if (ev->x > last_drag_x) {
                                         /* motion to left */
+                                        cerr << "was left, still left, move left\n";
                                         drag_dir = -inc;
                                 } else {
+                                        cerr << "was left, still left, move right\n";
                                         drag_dir = inc;
                                 }
                         } else {
                                 /* now right */
                                 if (ev->x > last_drag_x) {
                                         /* motion to left */
+                                        cerr << "was left, gone right, move left\n";
                                         drag_dir = inc;
                                 } else {
+                                        cerr << "was left, gone right, move right\n";
                                         drag_dir = -inc;
                                 }
                         }
@@ -321,16 +365,20 @@ StereoPanner::on_motion_notify_event (GdkEventMotion* ev)
                                 /* still right */
                                 if (ev->x < last_drag_x) {
                                         /* motion to right */
+                                        cerr << "was right, still right, move right\n";
                                         drag_dir = -inc;
                                 } else {
+                                        cerr << "was right, still right, move left\n";
                                         drag_dir = inc;
                                 }
                         } else {
                                 /* now left */
                                 if (ev->x < last_drag_x) {
                                         /* motion to right */
+                                        cerr << "was right, gone left, move right\n";
                                         drag_dir = inc;
                                 } else {
+                                        cerr << "was right, gone left, move left\n";
                                         drag_dir = -inc;
                                 }
                         }
@@ -340,6 +388,7 @@ StereoPanner::on_motion_notify_event (GdkEventMotion* ev)
                 old_wv = wv;
                 wv = wv + (drag_dir * delta);
                 
+                cerr << this << " set width to " << wv << endl;
                 width_control->set_value (wv);
 
         } else {
@@ -347,11 +396,12 @@ StereoPanner::on_motion_notify_event (GdkEventMotion* ev)
                 double pv = position_control->get_value(); // 0..1.0 ; 0 = left
                 
                 if (ev->x > last_drag_x) { // increasing 
-                        pv = pv * (1.0 + delta);
+                        pv = pv + delta;
                 } else {
-                        pv = pv * (1.0 - delta);
+                        pv = pv - delta;
                 }
 
+                cerr << this << " set position to " << pv << endl;
                 position_control->set_value (pv);
         }
 
@@ -373,11 +423,25 @@ StereoPanner::on_key_press_event (GdkEventKey* ev)
                 step = one_degree * 5.0;
         }
 
+        /* up/down control width because we consider pan position more "important"
+           (and thus having higher "sense" priority) than width.
+        */
+
         switch (ev->keyval) {
         case GDK_Up:
-                wv += step;
-                width_control->set_value (wv);
+                if (Keyboard::modifier_state_equals (ev->state, Keyboard::SecondaryModifier)) {
+                        width_control->set_value (1.0);
+                } else {
+                        width_control->set_value (wv + step);
+                }
                 break;
+        case GDK_Down:
+                if (Keyboard::modifier_state_equals (ev->state, Keyboard::SecondaryModifier)) {
+                        width_control->set_value (-1.0);
+                } else {
+                        width_control->set_value (wv - step);
+                }
+
         case GDK_Left:
                 pv -= step;
                 position_control->set_value (pv);
@@ -386,12 +450,15 @@ StereoPanner::on_key_press_event (GdkEventKey* ev)
                 pv += step;
                 position_control->set_value (pv);
                 break;
-        case GDK_Down:
-                wv -= step;
-                width_control->set_value (wv);
+
+                break;
+        case GDK_0:
+        case GDK_KP_0:
+                width_control->set_value (0.0);
                 break;
-        default:
-                return forward_key_press (ev);
+
+        default: 
+                return false;
         }
                 
         return true;
@@ -400,7 +467,7 @@ StereoPanner::on_key_press_event (GdkEventKey* ev)
 bool
 StereoPanner::on_key_release_event (GdkEventKey* ev)
 {
-        return true;
+        return false;
 }
 
 bool
@@ -417,3 +484,24 @@ StereoPanner::on_leave_notify_event (GdkEventCrossing*)
        Keyboard::magic_widget_drop_focus ();
        return false;
 }
+
+void
+StereoPanner::set_colors ()
+{
+        colors[Normal].fill = ARDOUR_UI::config()->canvasvar_StereoPannerFill.get();
+        colors[Normal].outline = ARDOUR_UI::config()->canvasvar_StereoPannerOutline.get();
+        colors[Normal].text = ARDOUR_UI::config()->canvasvar_StereoPannerText.get();
+        colors[Normal].background = ARDOUR_UI::config()->canvasvar_StereoPannerBackground.get();
+
+        colors[Mono].fill = ARDOUR_UI::config()->canvasvar_StereoPannerMonoFill.get();
+        colors[Mono].outline = ARDOUR_UI::config()->canvasvar_StereoPannerMonoOutline.get();
+        colors[Mono].text = ARDOUR_UI::config()->canvasvar_StereoPannerMonoText.get();
+        colors[Mono].background = ARDOUR_UI::config()->canvasvar_StereoPannerMonoBackground.get();
+
+        colors[Inverted].fill = ARDOUR_UI::config()->canvasvar_StereoPannerInvertedFill.get();
+        colors[Inverted].outline = ARDOUR_UI::config()->canvasvar_StereoPannerInvertedOutline.get();
+        colors[Inverted].text = ARDOUR_UI::config()->canvasvar_StereoPannerInvertedText.get();
+        colors[Inverted].background = ARDOUR_UI::config()->canvasvar_StereoPannerInvertedBackground.get();
+
+        color_change (); /* EMIT SIGNAL */
+}