2 Copyright (C) 2000-2007 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #include <gtkmm/window.h>
26 #include <pangomm/layout.h>
28 #include "pbd/controllable.h"
29 #include "pbd/compose.h"
31 #include "gtkmm2ext/gui_thread.h"
32 #include "gtkmm2ext/gtk_ui.h"
33 #include "gtkmm2ext/keyboard.h"
34 #include "gtkmm2ext/utils.h"
35 #include "gtkmm2ext/persistent_tooltip.h"
37 #include "ardour/pannable.h"
38 #include "ardour/panner.h"
39 #include "ardour/panner_shell.h"
41 #include "ardour_ui.h"
42 #include "global_signals.h"
43 #include "mono_panner.h"
44 #include "mono_panner_editor.h"
45 #include "rgb_macros.h"
52 using namespace Gtkmm2ext;
54 static const int pos_box_size = 9;
55 static const int lr_box_size = 15;
56 static const int step_down = 10;
57 static const int top_step = 2;
59 MonoPanner::ColorScheme MonoPanner::colors;
60 bool MonoPanner::have_colors = false;
62 Pango::AttrList MonoPanner::panner_font_attributes;
63 bool MonoPanner::have_font = false;
65 MonoPanner::MonoPanner (boost::shared_ptr<ARDOUR::PannerShell> p)
66 : PannerInterface (p->panner())
68 , position_control (_panner->pannable()->pan_azimuth_control)
71 , accumulated_delta (0)
73 , position_binder (position_control)
81 Pango::FontDescription font;
82 Pango::AttrFontDesc* font_attr;
83 font = Pango::FontDescription ("ArdourMono");
84 font.set_weight (Pango::WEIGHT_BOLD);
85 font.set_size(9 * PANGO_SCALE);
86 font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
87 panner_font_attributes.change(*font_attr);
92 position_control->Changed.connect (connections, invalidator(*this), boost::bind (&MonoPanner::value_change, this), gui_context());
94 _panner_shell->Changed.connect (connections, invalidator (*this), boost::bind (&MonoPanner::bypass_handler, this), gui_context());
95 ColorsChanged.connect (sigc::mem_fun (*this, &MonoPanner::color_handler));
100 MonoPanner::~MonoPanner ()
106 MonoPanner::set_tooltip ()
108 if (_panner_shell->bypassed()) {
109 _tooltip.set_tip (_("bypassed"));
112 double pos = position_control->get_value(); // 0..1
114 /* We show the position of the center of the image relative to the left & right.
115 This is expressed as a pair of percentage values that ranges from (100,0)
116 (hard left) through (50,50) (hard center) to (0,100) (hard right).
118 This is pretty wierd, but its the way audio engineers expect it. Just remember that
119 the center of the USA isn't Kansas, its (50LA, 50NY) and it will all make sense.
123 snprintf (buf, sizeof (buf), _("L:%3d R:%3d"),
124 (int) rint (100.0 * (1.0 - pos)),
125 (int) rint (100.0 * pos));
126 _tooltip.set_tip (buf);
130 MonoPanner::on_expose_event (GdkEventExpose*)
132 Glib::RefPtr<Gdk::Window> win (get_window());
133 Glib::RefPtr<Gdk::GC> gc (get_style()->get_base_gc (get_state()));
134 Cairo::RefPtr<Cairo::Context> context = get_window()->create_cairo_context();
137 double pos = position_control->get_value (); /* 0..1 */
138 uint32_t o, f, t, b, pf, po;
139 const double corner_radius = 5;
142 height = get_height ();
147 b = colors.background;
148 pf = colors.pos_fill;
149 po = colors.pos_outline;
151 if (_panner_shell->bypassed()) {
161 context->set_source_rgba (UINT_RGBA_R_FLT(b), UINT_RGBA_G_FLT(b), UINT_RGBA_B_FLT(b), UINT_RGBA_A_FLT(b));
162 context->rectangle (0, 0, width, height);
166 double usable_width = width - pos_box_size;
168 /* compute the centers of the L/R boxes based on the current stereo width */
169 if (fmod (usable_width,2.0) == 0) {
172 const double half_lr_box = lr_box_size/2.0;
173 const double left = 4 + half_lr_box; // center of left box
174 const double right = width - 4 - half_lr_box; // center of right box
177 context->set_source_rgba (UINT_RGBA_R_FLT(o), UINT_RGBA_G_FLT(o), UINT_RGBA_B_FLT(o), UINT_RGBA_A_FLT(o));
178 context->set_line_width (1.0);
179 context->move_to ((pos_box_size/2.0) + (usable_width/2.0), 0);
180 context->line_to ((pos_box_size/2.0) + (usable_width/2.0), height);
183 context->set_line_width (1.0);
186 rounded_left_half_rectangle (context,
187 left - half_lr_box + .5,
188 half_lr_box + step_down,
189 lr_box_size, lr_box_size, corner_radius);
190 context->set_source_rgba (UINT_RGBA_R_FLT(f), UINT_RGBA_G_FLT(f), UINT_RGBA_B_FLT(f), UINT_RGBA_A_FLT(f));
191 context->fill_preserve ();
192 context->set_source_rgba (UINT_RGBA_R_FLT(o), UINT_RGBA_G_FLT(o), UINT_RGBA_B_FLT(o), UINT_RGBA_A_FLT(o));
197 Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create(get_pango_context());
198 layout->set_attributes (panner_font_attributes);
200 layout->set_text (_("L"));
201 layout->get_pixel_size(tw, th);
202 context->move_to (rint(left - tw/2), rint(lr_box_size + step_down - th/2));
203 context->set_source_rgba (UINT_RGBA_R_FLT(t), UINT_RGBA_G_FLT(t), UINT_RGBA_B_FLT(t), UINT_RGBA_A_FLT(t));
204 pango_cairo_show_layout (context->cobj(), layout->gobj());
207 rounded_right_half_rectangle (context,
208 right - half_lr_box - .5,
209 half_lr_box + step_down,
210 lr_box_size, lr_box_size, corner_radius);
211 context->set_source_rgba (UINT_RGBA_R_FLT(f), UINT_RGBA_G_FLT(f), UINT_RGBA_B_FLT(f), UINT_RGBA_A_FLT(f));
212 context->fill_preserve ();
213 context->set_source_rgba (UINT_RGBA_R_FLT(o), UINT_RGBA_G_FLT(o), UINT_RGBA_B_FLT(o), UINT_RGBA_A_FLT(o));
217 layout->set_text (_("R"));
218 layout->get_pixel_size(tw, th);
219 context->move_to (rint(right - tw/2), rint(lr_box_size + step_down - th/2));
220 context->set_source_rgba (UINT_RGBA_R_FLT(t), UINT_RGBA_G_FLT(t), UINT_RGBA_B_FLT(t), UINT_RGBA_A_FLT(t));
221 pango_cairo_show_layout (context->cobj(), layout->gobj());
223 /* 2 lines that connect them both */
224 context->set_line_width (1.0);
226 if (_panner_shell->panner_gui_uri() != "http://ardour.org/plugin/panner_balance#ui") {
227 context->set_source_rgba (UINT_RGBA_R_FLT(o), UINT_RGBA_G_FLT(o), UINT_RGBA_B_FLT(o), UINT_RGBA_A_FLT(o));
228 context->move_to (left + half_lr_box, half_lr_box + step_down);
229 context->line_to (right - half_lr_box, half_lr_box + step_down);
232 context->move_to (left + half_lr_box, half_lr_box+step_down+lr_box_size);
233 context->line_to (right - half_lr_box, half_lr_box+step_down+lr_box_size);
236 context->move_to (left + half_lr_box, half_lr_box+step_down+lr_box_size);
237 context->line_to (right - half_lr_box, half_lr_box+step_down+lr_box_size);
238 context->line_to (right - half_lr_box, half_lr_box+step_down+lr_box_size);
239 context->line_to ((pos_box_size/2.0) + (usable_width/2.0), half_lr_box + step_down);
240 context->close_path();
241 context->set_source_rgba (UINT_RGBA_R_FLT(f), UINT_RGBA_G_FLT(f), UINT_RGBA_B_FLT(f), UINT_RGBA_A_FLT(f));
242 context->fill_preserve ();
243 context->set_source_rgba (UINT_RGBA_R_FLT(o), UINT_RGBA_G_FLT(o), UINT_RGBA_B_FLT(o), UINT_RGBA_A_FLT(o));
246 context->move_to (left + half_lr_box, half_lr_box + step_down);
247 context->line_to (right - half_lr_box, half_lr_box + step_down);
251 /* draw the position indicator */
252 double spos = (pos_box_size/2.0) + (usable_width * pos);
254 context->set_line_width (2.0);
255 context->move_to (spos + (pos_box_size/2.0), top_step); /* top right */
256 context->rel_line_to (0.0, pos_box_size); /* lower right */
257 context->rel_line_to (-pos_box_size/2.0, 4.0); /* bottom point */
258 context->rel_line_to (-pos_box_size/2.0, -4.0); /* lower left */
259 context->rel_line_to (0.0, -pos_box_size); /* upper left */
260 context->close_path ();
263 context->set_source_rgba (UINT_RGBA_R_FLT(po), UINT_RGBA_G_FLT(po), UINT_RGBA_B_FLT(po), UINT_RGBA_A_FLT(po));
264 context->stroke_preserve ();
265 context->set_source_rgba (UINT_RGBA_R_FLT(pf), UINT_RGBA_G_FLT(pf), UINT_RGBA_B_FLT(pf), UINT_RGBA_A_FLT(pf));
269 context->set_line_width (1.0);
270 context->move_to (spos, pos_box_size + 5);
271 context->rel_line_to (0, half_lr_box+step_down);
272 context->set_source_rgba (UINT_RGBA_R_FLT(po), UINT_RGBA_G_FLT(po), UINT_RGBA_B_FLT(po), UINT_RGBA_A_FLT(po));
281 MonoPanner::on_button_press_event (GdkEventButton* ev)
283 if (PannerInterface::on_button_press_event (ev)) {
286 if (_panner_shell->bypassed()) {
290 drag_start_x = ev->x;
294 _tooltip.target_stop_drag ();
295 accumulated_delta = 0;
298 /* Let the binding proxies get first crack at the press event
302 if (position_binder.button_press_handler (ev)) {
307 if (ev->button != 1) {
311 if (ev->type == GDK_2BUTTON_PRESS) {
312 int width = get_width();
314 if (Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier)) {
315 /* handled by button release */
320 if (ev->x <= width/3) {
321 /* left side dbl click */
322 position_control->set_value (0);
323 } else if (ev->x > 2*width/3) {
324 position_control->set_value (1.0);
326 position_control->set_value (0.5);
330 _tooltip.target_stop_drag ();
332 } else if (ev->type == GDK_BUTTON_PRESS) {
334 if (Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier)) {
335 /* handled by button release */
340 _tooltip.target_start_drag ();
348 MonoPanner::on_button_release_event (GdkEventButton* ev)
350 if (PannerInterface::on_button_release_event (ev)) {
354 if (ev->button != 1) {
358 if (_panner_shell->bypassed()) {
363 _tooltip.target_stop_drag ();
364 accumulated_delta = 0;
367 if (Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier)) {
377 MonoPanner::on_scroll_event (GdkEventScroll* ev)
379 double one_degree = 1.0/180.0; // one degree as a number from 0..1, since 180 degrees is the full L/R axis
380 double pv = position_control->get_value(); // 0..1.0 ; 0 = left
383 if (_panner_shell->bypassed()) {
387 if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) {
390 step = one_degree * 5.0;
393 switch (ev->direction) {
395 case GDK_SCROLL_LEFT:
397 position_control->set_value (pv);
399 case GDK_SCROLL_DOWN:
400 case GDK_SCROLL_RIGHT:
402 position_control->set_value (pv);
410 MonoPanner::on_motion_notify_event (GdkEventMotion* ev)
412 if (_panner_shell->bypassed()) {
420 double delta = (ev->x - last_drag_x) / (double) w;
422 /* create a detent close to the center */
424 if (!detented && ARDOUR::Panner::equivalent (position_control->get_value(), 0.5)) {
427 position_control->set_value (0.5);
431 accumulated_delta += delta;
433 /* have we pulled far enough to escape ? */
435 if (fabs (accumulated_delta) >= 0.025) {
436 position_control->set_value (position_control->get_value() + accumulated_delta);
438 accumulated_delta = false;
441 double pv = position_control->get_value(); // 0..1.0 ; 0 = left
442 position_control->set_value (pv + delta);
450 MonoPanner::on_key_press_event (GdkEventKey* ev)
452 double one_degree = 1.0/180.0;
453 double pv = position_control->get_value(); // 0..1.0 ; 0 = left
456 if (_panner_shell->bypassed()) {
460 if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) {
463 step = one_degree * 5.0;
466 switch (ev->keyval) {
469 position_control->set_value (pv);
473 position_control->set_value (pv);
477 position_control->set_value (0.0);
487 MonoPanner::set_colors ()
489 colors.fill = ARDOUR_UI::config()->canvasvar_MonoPannerFill.get();
490 colors.outline = ARDOUR_UI::config()->canvasvar_MonoPannerOutline.get();
491 colors.text = ARDOUR_UI::config()->canvasvar_MonoPannerText.get();
492 colors.background = ARDOUR_UI::config()->canvasvar_MonoPannerBackground.get();
493 colors.pos_outline = ARDOUR_UI::config()->canvasvar_MonoPannerPositionOutline.get();
494 colors.pos_fill = ARDOUR_UI::config()->canvasvar_MonoPannerPositionFill.get();
498 MonoPanner::color_handler ()
505 MonoPanner::bypass_handler ()
511 MonoPanner::editor ()
513 return new MonoPannerEditor (this);