X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;ds=inline;f=gtk2_ardour%2Fstereo_panner.cc;h=86d9055373f6e2bf84b11a550b7c9890540bd6a6;hb=5f4bdb233a53932986e07fca1cd6c87d22c2886f;hp=e1f4a0c56b5326ddd3a799af52d67aa500d23faf;hpb=f9c6d2d5a1bf6f1c9d756a6e4b18c6032df6e139;p=ardour.git diff --git a/gtk2_ardour/stereo_panner.cc b/gtk2_ardour/stereo_panner.cc index e1f4a0c56b..86d9055373 100644 --- a/gtk2_ardour/stereo_panner.cc +++ b/gtk2_ardour/stereo_panner.cc @@ -20,18 +20,39 @@ #include #include #include +#include + +#include #include "pbd/controllable.h" +#include "pbd/compose.h" #include "gtkmm2ext/gui_thread.h" +#include "gtkmm2ext/gtk_ui.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" using namespace std; using namespace Gtk; +using namespace Gtkmm2ext; + +static const int pos_box_size = 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 StereoPanner::color_change; StereoPanner::StereoPanner (boost::shared_ptr position, boost::shared_ptr width) : position_control (position) @@ -41,18 +62,51 @@ StereoPanner::StereoPanner (boost::shared_ptr position, boost , drag_start_x (0) , last_drag_x (0) { - set_size_request (-1, 15); + if (!have_colors) { + set_colors (); + have_colors = true; + } - position_control->Changed.connect (connections, invalidator(*this), boost::bind (&DrawingArea::queue_draw, this), gui_context()); - width_control->Changed.connect (connections, invalidator(*this), boost::bind (&DrawingArea::queue_draw, this), gui_context()); - - add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK|Gdk::POINTER_MOTION_MASK); + 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 (); + + set_flags (Gtk::CAN_FOCUS); + + add_events (Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK| + Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK| + 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 () { } +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()); +} + +void +StereoPanner::value_change () +{ + cerr << this << " Value change, pos = " << position_control->get_value() << " w = " << width_control->get_value() << endl; + set_tooltip (); + queue_draw (); +} + bool StereoPanner::on_expose_event (GdkEventExpose* ev) { @@ -61,33 +115,118 @@ StereoPanner::on_expose_event (GdkEventExpose* ev) cairo_t* cr = gdk_cairo_create (win->gobj()); - int x1, x2; int width, height; double pos = position_control->get_value (); /* 0..1 */ double swidth = width_control->get_value (); /* -1..+1 */ - const int pos_box_size = 5; + double fswidth = fabs (swidth); + uint32_t o, f, t, b; + State state; width = get_width(); height = get_height (); - /* compute where the central box is */ + if (swidth == 0.0) { + state = Mono; + } else if (swidth < 0.0) { + state = Inverted; + } else { + state = Normal; + } - x1 = (int) floor (width * pos); - x1 -= pos_box_size/2; + o = colors[state].outline; + f = colors[state].fill; + t = colors[state].text; + b = colors[state].background; - cairo_set_source_rgb (cr, 255, 0, 0); - cairo_rectangle (cr, x1, 4, pos_box_size, pos_box_size); - cairo_fill (cr); + /* background */ - /* compute & draw the line through the box */ + 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 centers of the L/R boxes based on the current stereo width */ + + int usable_width = width - lr_box_size; + 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 - x2 = x1 - (int) floor ((fabs (swidth) * width)/2.0); // center, then back up half the swidth value + cerr << this << " pos " << pos << " width = " << width << " swidth = " << swidth << " center @ " << center << " L = " << left << " R = " << right << endl; - cairo_set_source_rgb (cr, 0, 255, 0); - cairo_move_to (cr, x2, 4+(pos_box_size/2)); - cairo_line_to (cr, x2 + floor ((fabs (swidth * width))), 4+(pos_box_size/2)); + /* compute & draw the line through the box */ + + cairo_set_line_width (cr, 2); + 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, 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_stroke (cr); + if (swidth < 0.0) { + /* flip where the L/R boxes are drawn */ + swap (left, right); + } + + /* left box */ + + left -= lr_box_size/2; + right -= lr_box_size/2; + + cairo_rectangle (cr, + left, + (lr_box_size/2)+step_down, + lr_box_size, lr_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, 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 */ + + cairo_move_to (cr, + left + 3, + (lr_box_size/2) + step_down + 13); + cairo_select_font_face (cr, "sans-serif", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD); + 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 */ + + cairo_rectangle (cr, + right, + (lr_box_size/2)+step_down, + lr_box_size, lr_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, 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 */ + + cairo_move_to (cr, + right + 3, + (lr_box_size/2)+step_down + 13); + 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, 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, UINT_RGBA_R_FLT(f), UINT_RGBA_G_FLT(f), UINT_RGBA_B_FLT(f), UINT_RGBA_A_FLT(f)); + cairo_fill (cr); + + /* done */ + cairo_destroy (cr); return true; } @@ -98,12 +237,8 @@ StereoPanner::on_button_press_event (GdkEventButton* ev) drag_start_x = ev->x; last_drag_x = ev->x; - /* center 8 pixels are for position drag */ - - int w = get_width(); - double pos = position_control->get_value (); - - if ((ev->x >= (int) floor ((pos * w)-4)) && (ev->x <= (int) floor ((pos * w)+4))) { + if (ev->y < 20) { + /* top section of widget is for position drags */ dragging_position = true; } else { dragging_position = false; @@ -133,6 +268,42 @@ StereoPanner::on_button_release_event (GdkEventButton* ev) return true; } +bool +StereoPanner::on_scroll_event (GdkEventScroll* ev) +{ + double one_degree = 1.0/180.0; + double pv = position_control->get_value(); // 0..1.0 ; 0 = left + double wv = width_control->get_value(); // 0..1.0 ; 0 = left + double step; + + if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) { + step = one_degree; + } else { + step = one_degree * 5.0; + } + + switch (ev->direction) { + case GDK_SCROLL_LEFT: + wv += step; + width_control->set_value (wv); + break; + case GDK_SCROLL_UP: + pv -= step; + position_control->set_value (pv); + break; + case GDK_SCROLL_RIGHT: + wv -= step; + width_control->set_value (wv); + break; + case GDK_SCROLL_DOWN: + pv += step; + position_control->set_value (pv); + break; + } + + return true; +} + bool StereoPanner::on_motion_notify_event (GdkEventMotion* ev) { @@ -141,19 +312,82 @@ StereoPanner::on_motion_notify_event (GdkEventMotion* ev) } int w = get_width(); - float delta = (abs (ev->x - last_drag_x)) / (double) (w/2); + double delta = (abs (ev->x - last_drag_x)) / (w/2.0); + int drag_dir = 0; if (!dragging_position) { double wv = width_control->get_value(); + int inc; + double old_wv; + double opx; // compute the operational x-coordinate given the current pos+width - if (((drag_start_x < w/2) && ev->x > last_drag_x) || // start left of center, move towards it - ((drag_start_x > w/2) && ev->x < last_drag_x)) { // start right of center, move towards it - wv = wv * (1.0 - delta); + if (wv > 0) { + /* positive value: increasing width means adding */ + inc = 1; + } else { + /* positive value: increasing width means subtracting */ + inc = -1; + } + + if (drag_start_x < w/2) { + /* started left of center */ + + opx = position_control->get_value() - (wv/2.0); + + if (opx < 0.5) { + /* 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; + } + } } else { - /* moving out, so increase the width */ - wv = wv * (1.0 + delta); + /* started right of center */ + + opx = position_control->get_value() + (wv/2.0); + + if (opx > 0.5) { + /* 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; + } + } + } + + old_wv = wv; + wv = wv + (drag_dir * delta); + cerr << this << " set width to " << wv << endl; width_control->set_value (wv); } else { @@ -161,14 +395,112 @@ 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); } last_drag_x = ev->x; return true; } + +bool +StereoPanner::on_key_press_event (GdkEventKey* ev) +{ + double one_degree = 1.0/180.0; + double pv = position_control->get_value(); // 0..1.0 ; 0 = left + double wv = width_control->get_value(); // 0..1.0 ; 0 = left + double step; + + if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) { + step = one_degree; + } else { + 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: + 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); + break; + case GDK_Right: + pv += step; + position_control->set_value (pv); + break; + + break; + case GDK_0: + case GDK_KP_0: + width_control->set_value (0.0); + break; + + default: + return false; + } + + return true; +} + +bool +StereoPanner::on_key_release_event (GdkEventKey* ev) +{ + return false; +} + +bool +StereoPanner::on_enter_notify_event (GdkEventCrossing* ev) +{ + grab_focus (); + Keyboard::magic_widget_grab_focus (); + return false; +} + +bool +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 */ +}