#include <iostream>
#include <iomanip>
#include <cstring>
+#include <cmath>
+
+#include <gtkmm/window.h>
#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<void> StereoPanner::color_change;
StereoPanner::StereoPanner (boost::shared_ptr<PBD::Controllable> position, boost::shared_ptr<PBD::Controllable> width)
: position_control (position)
, 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)
{
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;
}
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;
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)
{
}
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 {
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 */
+}
projects / ardour.git / blobdiff