2 Copyright (C) 2010 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.
24 #include <pangomm/layout.h>
26 #include "pbd/compose.h"
27 #include "pbd/error.h"
28 #include "pbd/stacktrace.h"
30 #include "gtkmm2ext/utils.h"
31 #include "gtkmm2ext/rgb_macros.h"
32 #include "gtkmm2ext/gui_thread.h"
34 #include "ardour/rc_configuration.h" // for widget prelight preference
36 #include "canvas/utils.h"
37 #include "canvas/colors.h"
39 #include "ardour_button.h"
40 #include "ardour_ui.h"
41 #include "global_signals.h"
45 #define BASELINESTRETCH (1.25)
46 #define TRACKHEADERBTNW (3.10)
56 ArdourButton::Element ArdourButton::default_elements = ArdourButton::Element (ArdourButton::Edge|ArdourButton::Body|ArdourButton::Text);
57 ArdourButton::Element ArdourButton::led_default_elements = ArdourButton::Element (ArdourButton::default_elements|ArdourButton::Indicator);
58 ArdourButton::Element ArdourButton::just_led_default_elements = ArdourButton::Element (ArdourButton::Edge|ArdourButton::Body|ArdourButton::Indicator);
60 ArdourButton::ArdourButton (Element e)
62 , _icon (ArdourButton::NoIcon)
63 , _tweaks (Tweaks (0))
64 , _char_pixel_width (0)
65 , _char_pixel_height (0)
66 , _char_avg_pixel_width (0)
70 , _corner_radius (2.5)
75 , fill_inactive_color (0)
76 , fill_active_color (0)
77 , text_active_color(0)
78 , text_inactive_color(0)
80 , led_inactive_color(0)
81 , led_custom_color (0)
82 , use_custom_led_color (false)
85 , led_inset_pattern (0)
87 , _act_on_release (true)
89 , _distinct_led_click (false)
92 , _fixed_colors_set (false)
93 , _fallthrough_to_parent (false)
94 , _layout_ellipsize_width (-1)
95 , _ellipsis (Pango::ELLIPSIZE_NONE)
96 , _update_colors (true)
99 ARDOUR_UI_UTILS::ColorsChanged.connect (sigc::mem_fun (*this, &ArdourButton::color_handler));
102 ArdourButton::ArdourButton (const std::string& str, Element e)
104 , _tweaks (Tweaks (0))
108 , _corner_radius (2.5)
113 , fill_inactive_color (0)
114 , fill_active_color (0)
115 , text_active_color(0)
116 , text_inactive_color(0)
117 , led_active_color(0)
118 , led_inactive_color(0)
119 , led_custom_color (0)
120 , use_custom_led_color (false)
122 , concave_pattern (0)
123 , led_inset_pattern (0)
125 , _act_on_release (true)
127 , _distinct_led_click (false)
130 , _fixed_colors_set (false)
131 , _fallthrough_to_parent (false)
132 , _layout_ellipsize_width (-1)
133 , _ellipsis (Pango::ELLIPSIZE_NONE)
134 , _update_colors (true)
135 , _pattern_height (0)
138 ARDOUR_UI_UTILS::ColorsChanged.connect (sigc::mem_fun (*this, &ArdourButton::color_handler));
139 ARDOUR_UI_UTILS::DPIReset.connect (sigc::mem_fun (*this, &ArdourButton::on_name_changed));
142 ArdourButton::~ArdourButton()
146 if (convex_pattern) {
147 cairo_pattern_destroy (convex_pattern);
150 if (concave_pattern) {
151 cairo_pattern_destroy (concave_pattern);
154 if (led_inset_pattern) {
155 cairo_pattern_destroy (led_inset_pattern);
160 ArdourButton::set_layout_font (const Pango::FontDescription& fd)
164 _layout->set_font_description (fd);
170 ArdourButton::set_text (const std::string& str)
173 if (!is_realized()) {
177 if (_layout && _layout->get_text() != _text) {
178 _layout->set_text (_text);
184 ArdourButton::set_angle (const double angle)
190 ArdourButton::set_alignment (const float xa, const float ya)
197 ArdourButton::render (cairo_t* cr, cairo_rectangle_t *)
202 if (_update_colors) {
205 if (get_height() != _pattern_height) {
209 if ( active_state() == Gtkmm2ext::ExplicitActive ) {
210 text_color = text_active_color;
211 led_color = led_active_color;
213 text_color = text_inactive_color;
214 led_color = led_inactive_color;
217 if (use_custom_led_color) {
218 led_color = led_custom_color;
221 void (*rounded_function)(cairo_t*, double, double, double, double, double);
223 switch (_corner_mask) {
224 case 0x1: /* upper left only */
225 rounded_function = Gtkmm2ext::rounded_top_left_rectangle;
227 case 0x2: /* upper right only */
228 rounded_function = Gtkmm2ext::rounded_top_right_rectangle;
230 case 0x3: /* upper only */
231 rounded_function = Gtkmm2ext::rounded_top_rectangle;
233 /* should really have functions for lower right, lower left,
234 lower only, but for now, we don't
237 rounded_function = Gtkmm2ext::rounded_rectangle;
240 // draw edge (filling a rect underneath, rather than stroking a border on top, allows the corners to be lighter-weight.
241 if ((_elements & (Body|Edge)) == (Body|Edge)) {
242 rounded_function (cr, 0, 0, get_width(), get_height(), _corner_radius + 1.5);
243 cairo_set_source_rgba (cr, 0, 0, 0, 1);
248 if ((_elements & Body)==Body) {
249 rounded_function (cr, 1, 1, get_width() - 2, get_height() - 2, _corner_radius);
250 if (active_state() == Gtkmm2ext::ImplicitActive && !((_elements & Indicator)==Indicator)) {
251 ArdourCanvas::set_source_rgba (cr, fill_inactive_color);
253 } else if ( (active_state() == Gtkmm2ext::ExplicitActive) && !((_elements & Indicator)==Indicator) ) {
255 ArdourCanvas::set_source_rgba (cr, fill_active_color);
257 } else { //inactive, or it has an indicator
259 ArdourCanvas::set_source_rgba (cr, fill_inactive_color);
264 // IMPLICIT ACTIVE: draw a border of the active color
265 if ((_elements & Body)==Body) {
266 if (active_state() == Gtkmm2ext::ImplicitActive && !((_elements & Indicator)==Indicator)) {
267 cairo_set_line_width (cr, 2.0);
268 rounded_function (cr, 2, 2, get_width() - 4, get_height() - 4, _corner_radius-0.5);
269 ArdourCanvas::set_source_rgba (cr, fill_active_color);
274 //show the "convex" or "concave" gradient
275 if (!_flat_buttons) {
276 if ( active_state() == Gtkmm2ext::ExplicitActive && ( !((_elements & Indicator)==Indicator) || use_custom_led_color) ) {
278 cairo_set_source (cr, concave_pattern);
279 Gtkmm2ext::rounded_rectangle (cr, 1, 1, get_width() - 2, get_height() - 2, _corner_radius);
282 cairo_set_source (cr, convex_pattern);
283 Gtkmm2ext::rounded_rectangle (cr, 1, 1, get_width() - 2, get_height() - 2, _corner_radius);
290 double x = rint((get_width() - _pixbuf->get_width()) * .5);
291 const double y = rint((get_height() - _pixbuf->get_height()) * .5);
292 #if 0 // DEBUG style (print on hover)
293 if (_hovering || (_elements & Inactive)) {
294 printf("%s: p:%dx%d (%dx%d)\n",
296 _pixbuf->get_width(), _pixbuf->get_height(),
297 get_width(), get_height());
300 if (_elements & Menu) {
301 //if this is a DropDown with an icon, then we need to
302 //move the icon left slightly to accomomodate the arrow
305 cairo_rectangle (cr, x, y, _pixbuf->get_width(), _pixbuf->get_height());
306 gdk_cairo_set_source_pixbuf (cr, _pixbuf->gobj(), x, y);
309 else // rec-en is exclusive to pixbuf (tape machine mode, rec-en)
310 if ((_elements & VectorIcon) && _icon == RecTapeMode) {
311 const double x = get_width() * .5;
312 const double y = get_height() * .5;
313 const double r = std::min(10., std::min(x, y) * .6); // TODO we need a better way to limit max. radius.
314 const double slit = .11 * M_PI;
316 cairo_translate(cr, x, y);
318 cairo_arc (cr, 0, 0, r, 0, 2 * M_PI);
319 if (active_state() == Gtkmm2ext::ExplicitActive)
320 cairo_set_source_rgba (cr, .95, .1, .1, 1.);
322 cairo_set_source_rgba (cr, .95, .44, .44, 1.); // #f46f6f
323 cairo_fill_preserve(cr);
324 cairo_set_source_rgba (cr, .0, .0, .0, .5);
325 cairo_set_line_width(cr, 1);
329 cairo_set_source_rgba (cr, .15, .07, .07, 1.0);
331 cairo_rotate (cr, -.5 * M_PI);
332 cairo_move_to(cr, 0, 0);
333 cairo_arc (cr, 0, 0, r *.85, -slit, slit);
334 cairo_line_to(cr, 0, 0);
335 cairo_close_path(cr);
338 cairo_rotate (cr, 2. * M_PI / 3.);
340 cairo_move_to(cr, 0, 0);
341 cairo_arc (cr, 0, 0, r *.85, -slit, slit);
342 cairo_line_to(cr, 0, 0);
343 cairo_close_path(cr);
346 cairo_rotate (cr, 2. * M_PI / 3.);
347 cairo_move_to(cr, 0, 0);
348 cairo_arc (cr, 0, 0, r *.85, -slit, slit);
349 cairo_line_to(cr, 0, 0);
350 cairo_close_path(cr);
355 cairo_arc (cr, 0, 0, r * .3, 0, 2 * M_PI);
356 if (active_state() == Gtkmm2ext::ExplicitActive)
357 cairo_set_source_rgba (cr, .95, .1, .1, 1.);
359 cairo_set_source_rgba (cr, .95, .44, .44, 1.); // #f46f6f
361 cairo_set_source_rgba (cr, .0, .0, .0, 1.0);
362 cairo_arc (cr, 0, 0, r *.15, 0, 2 * M_PI); // hole in the middle
367 else if ((_elements & VectorIcon) && _icon == RecButton) {
368 const double x = get_width() * .5;
369 const double y = get_height() * .5;
370 const double r = std::min(10., std::min(x, y) * .55); // TODO we need a better way to limit max. radius.
371 cairo_arc (cr, x, y, r, 0, 2 * M_PI);
372 if (active_state() == Gtkmm2ext::ExplicitActive)
373 cairo_set_source_rgba (cr, .95, .1, .1, 1.);
375 cairo_set_source_rgba (cr, .95, .44, .44, 1.); // #f46f6f
376 cairo_fill_preserve(cr);
377 cairo_set_source_rgba (cr, .0, .0, .0, .8);
378 cairo_set_line_width(cr, 1);
381 else if ((_elements & VectorIcon) && _icon == CloseCross) {
382 const double x = get_width() * .5;
383 const double y = get_height() * .5;
384 const double o = .5 + std::min(x, y) * .4;
385 ArdourCanvas::set_source_rgba (cr, text_color);
386 cairo_set_line_width(cr, 1);
387 cairo_move_to(cr, x-o, y-o);
388 cairo_line_to(cr, x+o, y+o);
389 cairo_move_to(cr, x+o, y-o);
390 cairo_line_to(cr, x-o, y+o);
393 else if ((_elements & VectorIcon) && _icon == StripWidth) {
394 const double x0 = get_width() * .2;
395 const double x1 = get_width() * .8;
397 const double y0 = get_height() * .25;
398 const double y1= get_height() * .75;
400 const double ym= get_height() * .5;
403 const double xa0= get_height() * .39;
404 const double xa1= get_height() * .61;
405 const double ya0= get_height() * .35;
406 const double ya1= get_height() * .65;
408 ArdourCanvas::set_source_rgba (cr, text_color);
409 cairo_set_line_width(cr, 1);
412 cairo_move_to(cr, x0, y0);
413 cairo_line_to(cr, x0, y1);
414 cairo_move_to(cr, x1, y0);
415 cairo_line_to(cr, x1, y1);
418 cairo_move_to(cr, x0, ym);
419 cairo_line_to(cr, x1, ym);
422 cairo_move_to(cr, x0, ym);
423 cairo_line_to(cr, xa0, ya0);
424 cairo_move_to(cr, x0, ym);
425 cairo_line_to(cr, xa0, ya1);
428 cairo_move_to(cr, x1, ym);
429 cairo_line_to(cr, xa1, ya0);
430 cairo_move_to(cr, x1, ym);
431 cairo_line_to(cr, xa1, ya1);
434 else if ((_elements & VectorIcon) && _icon == DinMidi) {
435 const double x = get_width() * .5;
436 const double y = get_height() * .5;
437 const double r = std::min(x, y) * .75;
438 ArdourCanvas::set_source_rgba (cr, text_color);
439 cairo_set_line_width(cr, 1);
440 cairo_arc (cr, x, y, r, 0, 2 * M_PI);
443 // pins equally spaced 45deg
444 cairo_arc (cr, x, y * 0.5, r * .15, 0, 2 * M_PI);
446 cairo_arc (cr, x * 0.5, y, r * .15, 0, 2 * M_PI);
448 cairo_arc (cr, x * 1.5, y, r * .15, 0, 2 * M_PI);
450 // .5 + .5 * .5 * sin(45deg), 1.5 - .5 * .5 * cos(45deg)
451 cairo_arc (cr, x * 0.677, y * .677, r * .15, 0, 2 * M_PI);
453 cairo_arc (cr, x * 1.323, y * .677, r * .15, 0, 2 * M_PI);
457 cairo_arc (cr, x, y+r, r * .28, 1.05 * M_PI, 1.95 * M_PI);
461 const int text_margin = char_pixel_width();
463 if (!_pixbuf && ((_elements & Text)==Text) && !_text.empty()) {
465 #if 0 // DEBUG style (print on hover)
466 if (_hovering || (_elements & Inactive)) {
467 bool layout_font = true;
468 Pango::FontDescription fd = _layout->get_font_description();
469 if (fd.gobj() == NULL) {
471 fd = get_pango_context()->get_font_description();
473 printf("%s: f:%dx%d aw:%.3f bh:%.0f t:%dx%d (%dx%d) %s\"%s\"\n",
475 char_pixel_width(), char_pixel_height(), char_avg_pixel_width(),
476 ceil(char_pixel_height() * BASELINESTRETCH),
477 _text_width, _text_height,
478 get_width(), get_height(),
479 layout_font ? "L:" : "W:",
480 fd.to_string().c_str());
485 cairo_rectangle (cr, 2, 1, get_width() - 4, get_height() - 2);
489 ArdourCanvas::set_source_rgba (cr, text_color);
490 const double text_ypos = (get_height() - _text_height) * .5;
492 if (_elements & Menu) {
493 // always left align (dropdown)
494 cairo_move_to (cr, text_margin, text_ypos);
495 pango_cairo_show_layout (cr, _layout->gobj());
496 } else if ( (_elements & Indicator) == Indicator) {
497 // left/right align depending on LED position
499 cairo_move_to (cr, text_margin + _diameter + .5 * char_pixel_width(), text_ypos);
501 cairo_move_to (cr, text_margin, text_ypos);
503 pango_cairo_show_layout (cr, _layout->gobj());
505 /* centered text otherwise */
512 cairo_rotate(cr, _angle * M_PI / 180.0);
513 cairo_device_to_user(cr, &ww, &wh);
514 xa = (ww - _text_width) * _xalign;
515 ya = (wh - _text_height) * _yalign;
517 /* quick hack for left/bottom alignment at -90deg
518 * TODO this should be generalized incl rotation.
519 * currently only 'user' of this API is meter_strip.cc
521 if (_xalign < 0) xa = ceil(.5 + (ww * fabs(_xalign) + text_margin));
523 cairo_move_to (cr, xa, ya);
524 pango_cairo_update_layout(cr, _layout->gobj());
525 pango_cairo_show_layout (cr, _layout->gobj());
532 if (_elements & Menu) {
533 const float trih = ceil(_diameter * .5);
534 const float triw2 = ceil(.577 * _diameter * .5); // 1/sqrt(3) Equilateral triangle
536 cairo_set_source_rgba (cr, 1, 1, 1, 0.4);
537 cairo_move_to(cr, get_width() - triw2 - 3. , rint((get_height() + trih) * .5));
538 cairo_rel_line_to(cr, -triw2, -trih);
539 cairo_rel_line_to(cr, 2. * triw2, 0);
540 cairo_close_path(cr);
542 cairo_set_source_rgba (cr, 1, 1, 1, 0.4);
545 cairo_move_to(cr, get_width() - triw2 - 3 , rint((get_height() + trih) * .5));
546 cairo_rel_line_to(cr, .5 - triw2, .5 - trih);
547 cairo_rel_line_to(cr, 2. * triw2 - 1, 0);
548 cairo_close_path(cr);
549 cairo_set_source_rgba (cr, 0, 0, 0, 0.8);
550 cairo_set_line_width(cr, 1);
555 if (_elements & Indicator) {
558 /* move to the center of the indicator/led */
559 if (_elements & Text) {
560 int led_xoff = ceil(char_pixel_width() + _diameter * .5);
562 cairo_translate (cr, led_xoff, get_height() * .5);
564 cairo_translate (cr, get_width() - led_xoff, get_height() * .5);
567 cairo_translate (cr, get_width() * .5, get_height() * .5);
571 if (!_flat_buttons) {
572 cairo_arc (cr, 0, 0, _diameter * .5, 0, 2 * M_PI);
573 cairo_set_source (cr, led_inset_pattern);
578 cairo_set_source_rgb (cr, 0, 0, 0);
579 cairo_arc (cr, 0, 0, _diameter * .5 - 1, 0, 2 * M_PI);
583 ArdourCanvas::set_source_rgba (cr, led_color);
584 cairo_arc (cr, 0, 0, _diameter * .5 - 3, 0, 2 * M_PI);
590 // a transparent overlay to indicate insensitivity
591 if ((visual_state() & Gtkmm2ext::Insensitive)) {
592 rounded_function (cr, 0, 0, get_width(), get_height(), _corner_radius);
593 uint32_t ins_color = ARDOUR_UI::config()->color ("gtk_background");
594 ArdourCanvas::set_source_rgb_a (cr, ins_color, 0.6);
598 // if requested, show hovering
599 if (ARDOUR_UI::config()->get_widget_prelight()
600 && !((visual_state() & Gtkmm2ext::Insensitive))) {
602 rounded_function (cr, 1, 1, get_width() - 2, get_height() - 2, _corner_radius);
603 cairo_set_source_rgba (cr, 0.905, 0.917, 0.925, 0.2);
608 //user is currently pressing the button. dark outline helps to indicate this
609 if (_grabbed && !(_elements & (Inactive|Menu))) {
610 rounded_function (cr, 1, 1, get_width() - 2, get_height() - 2, _corner_radius);
611 cairo_set_line_width(cr, 2);
612 cairo_set_source_rgba (cr, 0.1, 0.1, 0.1, .5);
616 //some buttons (like processor boxes) can be selected (so they can be deleted). Draw a selection indicator
617 if (visual_state() & Gtkmm2ext::Selected) {
618 cairo_set_line_width(cr, 1);
619 cairo_set_source_rgba (cr, 1, 0, 0, 0.8);
620 rounded_function (cr, 0.5, 0.5, get_width() - 1, get_height() - 1, _corner_radius);
624 //I guess this means we have keyboard focus. I don't think this works currently
626 //A: yes, it's keyboard focus and it does work when there's no editor window
627 // (the editor is always the first receiver for KeyDown).
628 // It's needed for eg. the engine-dialog at startup or after closing a sesion.
630 rounded_function (cr, 1.5, 1.5, get_width() - 3, get_height() - 3, _corner_radius);
631 cairo_set_source_rgba (cr, 0.905, 0.917, 0.925, 0.8);
633 cairo_set_dash (cr, &dashes, 1, 0);
634 cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT);
635 cairo_set_line_width (cr, 1.0);
637 cairo_set_dash (cr, 0, 0, 0);
642 ArdourButton::set_corner_radius (float r)
645 CairoWidget::set_dirty ();
649 ArdourButton::on_realize()
651 CairoWidget::on_realize ();
653 if (_layout && _layout->get_text() != _text) {
654 _layout->set_text (_text);
660 ArdourButton::on_size_request (Gtk::Requisition* req)
662 req->width = req->height = 0;
663 CairoWidget::on_size_request (req);
665 if (_diameter == 0) {
666 const float newdia = rint (ARDOUR_UI::config()->get_font_scale () / 9600.0); // 11px with 100% font-scaling
667 if (_diameter != newdia) {
673 if ((_elements & Text) && !_text.empty()) {
674 // if _layout does not exist, char_pixel_height() creates it,
675 req->height = std::max(req->height, (int) ceil(char_pixel_height() * BASELINESTRETCH + 1.0));
676 _layout->get_pixel_size (_text_width, _text_height);
677 req->width += rint(1.75 * char_pixel_width()); // padding
678 req->width += _text_width;
685 req->width += _pixbuf->get_width() + char_pixel_width();
686 req->height = std::max(req->height, _pixbuf->get_height() + 4);
689 if (_elements & Indicator) {
690 req->width += lrint (_diameter) + char_pixel_width();
691 req->height = std::max (req->height, (int) lrint (_diameter) + 4);
694 if ((_elements & Menu)) {
695 req->width += _diameter + 4;
698 if (_elements & VectorIcon) {
699 assert(!(_elements & Text));
700 const int wh = std::max (rint (TRACKHEADERBTNW * char_avg_pixel_width()), ceil (char_pixel_height() * BASELINESTRETCH + 1.));
702 req->height = std::max(req->height, wh);
705 /* Tweaks to mess the nice stuff above up again. */
706 if (_tweaks & TrackHeader) {
707 // forget everything above and just use a fixed square [em] size
708 // "TrackHeader Buttons" are single letter (usually uppercase)
709 // a SizeGroup is much less efficient (lots of gtk work under the hood for each track)
710 const int wh = std::max (rint (TRACKHEADERBTNW * char_avg_pixel_width()), ceil (char_pixel_height() * BASELINESTRETCH + 1.));
714 else if (_tweaks & Square) {
715 // currerntly unused (again)
716 if (req->width < req->height)
717 req->width = req->height;
718 if (req->height < req->width)
719 req->height = req->width;
720 } else if (_text_width > 0 && !(_elements & (Menu | Indicator))) {
721 // properly centered text for those elements that are centered
722 // (no sub-pixel offset)
723 if ((req->width - _text_width) & 1) { ++req->width; }
724 if ((req->height - _text_height) & 1) { ++req->height; }
727 printf("REQ: %s: %dx%d\n", get_name().c_str(), req->width, req->height);
732 * This sets the colors used for rendering based on the name of the button, and
733 * thus uses information from the GUI config data.
736 ArdourButton::set_colors ()
738 _update_colors = false;
739 if (_fixed_colors_set) {
742 std::string name = get_name();
745 fill_active_color = ARDOUR_UI::config()->color (string_compose ("%1: fill active", name), &failed);
747 fill_active_color = ARDOUR_UI::config()->color ("generic button: fill active");
749 fill_inactive_color = ARDOUR_UI::config()->color (string_compose ("%1: fill", name), &failed);
751 fill_inactive_color = ARDOUR_UI::config()->color ("generic button: fill");
754 text_active_color = ArdourCanvas::contrasting_text_color (fill_active_color);
755 text_inactive_color = ArdourCanvas::contrasting_text_color (fill_inactive_color);
757 led_active_color = ARDOUR_UI::config()->color (string_compose ("%1: led active", name), &failed);
759 led_active_color = ARDOUR_UI::config()->color ("generic button: led active");
762 /* The inactive color for the LED is just a fairly dark version of the
766 ArdourCanvas::HSV inactive (led_active_color);
769 led_inactive_color = inactive.color ();
773 * This sets the colors used for rendering based on two fixed values, rather
774 * than basing them on the button name, and thus information in the GUI config
777 void ArdourButton::set_fixed_colors (const uint32_t color_active, const uint32_t color_inactive)
779 _fixed_colors_set = true;
781 fill_active_color = color_active;
782 fill_inactive_color = color_inactive;
784 unsigned char r, g, b, a;
785 UINT_TO_RGBA(color_active, &r, &g, &b, &a);
787 double white_contrast = (max (double(r), 255.) - min (double(r), 255.)) +
788 (max (double(g), 255.) - min (double(g), 255.)) +
789 (max (double(b), 255.) - min (double(b), 255.));
791 double black_contrast = (max (double(r), 0.) - min (double(r), 0.)) +
792 (max (double(g), 0.) - min (double(g), 0.)) +
793 (max (double(b), 0.) - min (double(b), 0.));
795 text_active_color = (white_contrast > black_contrast) ?
796 RGBA_TO_UINT(255, 255, 255, 255) : /* use white */
797 RGBA_TO_UINT( 0, 0, 0, 255); /* use black */
800 UINT_TO_RGBA(color_inactive, &r, &g, &b, &a);
802 white_contrast = (max (double(r), 255.) - min (double(r), 255.)) +
803 (max (double(g), 255.) - min (double(g), 255.)) +
804 (max (double(b), 255.) - min (double(b), 255.));
806 black_contrast = (max (double(r), 0.) - min (double(r), 0.)) +
807 (max (double(g), 0.) - min (double(g), 0.)) +
808 (max (double(b), 0.) - min (double(b), 0.));
810 text_inactive_color = (white_contrast > black_contrast) ?
811 RGBA_TO_UINT(255, 255, 255, 255) : /* use white */
812 RGBA_TO_UINT( 0, 0, 0, 255); /* use black */
814 /* XXX what about led colors ? */
815 CairoWidget::set_dirty ();
819 ArdourButton::build_patterns ()
821 if (convex_pattern) {
822 cairo_pattern_destroy (convex_pattern);
826 if (concave_pattern) {
827 cairo_pattern_destroy (concave_pattern);
831 if (led_inset_pattern) {
832 cairo_pattern_destroy (led_inset_pattern);
833 led_inset_pattern = 0;
837 convex_pattern = cairo_pattern_create_linear (0.0, 0, 0.0, get_height());
838 cairo_pattern_add_color_stop_rgba (convex_pattern, 0.0, 0,0,0, 0.0);
839 cairo_pattern_add_color_stop_rgba (convex_pattern, 1.0, 0,0,0, 0.35);
842 concave_pattern = cairo_pattern_create_linear (0.0, 0, 0.0, get_height());
843 cairo_pattern_add_color_stop_rgba (concave_pattern, 0.0, 0,0,0, 0.5);
844 cairo_pattern_add_color_stop_rgba (concave_pattern, 0.7, 0,0,0, 0.0);
846 led_inset_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, _diameter);
847 cairo_pattern_add_color_stop_rgba (led_inset_pattern, 0, 0,0,0, 0.4);
848 cairo_pattern_add_color_stop_rgba (led_inset_pattern, 1, 1,1,1, 0.7);
850 _pattern_height = get_height() ;
854 ArdourButton::set_led_left (bool yn)
860 ArdourButton::on_button_press_event (GdkEventButton *ev)
864 if (ev->button == 1 && (_elements & Indicator) && _led_rect && _distinct_led_click) {
865 if (ev->x >= _led_rect->x && ev->x < _led_rect->x + _led_rect->width &&
866 ev->y >= _led_rect->y && ev->y < _led_rect->y + _led_rect->height) {
871 if (binding_proxy.button_press_handler (ev)) {
876 CairoWidget::set_dirty ();
878 if (ev->button == 1 && !_act_on_release) {
880 _action->activate ();
885 if (_fallthrough_to_parent)
892 ArdourButton::on_button_release_event (GdkEventButton *ev)
894 if (ev->button == 1 && _hovering && (_elements & Indicator) && _led_rect && _distinct_led_click) {
895 if (ev->x >= _led_rect->x && ev->x < _led_rect->x + _led_rect->width &&
896 ev->y >= _led_rect->y && ev->y < _led_rect->y + _led_rect->height) {
897 signal_led_clicked(); /* EMIT SIGNAL */
903 CairoWidget::set_dirty ();
905 if (ev->button == 1 && _hovering) {
907 if (_act_on_release) {
909 _action->activate ();
915 if (_fallthrough_to_parent)
922 ArdourButton::set_distinct_led_click (bool yn)
924 _distinct_led_click = yn;
929 ArdourButton::color_handler ()
931 _update_colors = true;
932 CairoWidget::set_dirty ();
936 ArdourButton::on_size_allocate (Allocation& alloc)
938 CairoWidget::on_size_allocate (alloc);
943 ArdourButton::set_controllable (boost::shared_ptr<Controllable> c)
945 watch_connection.disconnect ();
946 binding_proxy.set_controllable (c);
950 ArdourButton::watch ()
952 boost::shared_ptr<Controllable> c (binding_proxy.get_controllable ());
955 warning << _("button cannot watch state of non-existing Controllable\n") << endmsg;
958 c->Changed.connect (watch_connection, invalidator(*this), boost::bind (&ArdourButton::controllable_changed, this), gui_context());
962 ArdourButton::controllable_changed ()
964 float val = binding_proxy.get_controllable()->get_value();
966 if (fabs (val) >= 0.5f) {
967 set_active_state (Gtkmm2ext::ExplicitActive);
969 unset_active_state ();
971 CairoWidget::set_dirty ();
975 ArdourButton::set_related_action (RefPtr<Action> act)
977 Gtkmm2ext::Activatable::set_related_action (act);
981 action_tooltip_changed ();
983 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (_action);
986 tact->signal_toggled().connect (sigc::mem_fun (*this, &ArdourButton::action_toggled));
989 _action->connect_property_changed ("sensitive", sigc::mem_fun (*this, &ArdourButton::action_sensitivity_changed));
990 _action->connect_property_changed ("visible", sigc::mem_fun (*this, &ArdourButton::action_visibility_changed));
991 _action->connect_property_changed ("tooltip", sigc::mem_fun (*this, &ArdourButton::action_tooltip_changed));
996 ArdourButton::action_toggled ()
998 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (_action);
1001 if (tact->get_active()) {
1002 set_active_state (Gtkmm2ext::ExplicitActive);
1004 unset_active_state ();
1010 ArdourButton::on_style_changed (const RefPtr<Gtk::Style>&)
1012 _update_colors = true;
1013 CairoWidget::set_dirty ();
1017 ArdourButton::on_name_changed ()
1019 _char_pixel_width = 0;
1020 _char_pixel_height = 0;
1022 _update_colors = true;
1023 if (is_realized()) {
1029 ArdourButton::setup_led_rect ()
1031 if (!(_elements & Indicator)) {
1038 _led_rect = new cairo_rectangle_t;
1041 if (_elements & Text) {
1043 _led_rect->x = char_pixel_width();
1045 _led_rect->x = get_width() - char_pixel_width() + _diameter;
1049 _led_rect->x = .5 * get_width() - _diameter;
1052 _led_rect->y = .5 * (get_height() - _diameter);
1053 _led_rect->width = _diameter;
1054 _led_rect->height = _diameter;
1058 ArdourButton::set_image (const RefPtr<Gdk::Pixbuf>& img)
1061 if (is_realized()) {
1067 ArdourButton::set_active_state (Gtkmm2ext::ActiveState s)
1069 bool changed = (_active_state != s);
1070 CairoWidget::set_active_state (s);
1072 _update_colors = true;
1073 CairoWidget::set_dirty ();
1078 ArdourButton::set_visual_state (Gtkmm2ext::VisualState s)
1080 bool changed = (_visual_state != s);
1081 CairoWidget::set_visual_state (s);
1083 _update_colors = true;
1084 CairoWidget::set_dirty ();
1089 ArdourButton::on_focus_in_event (GdkEventFocus* ev)
1092 CairoWidget::set_dirty ();
1093 return CairoWidget::on_focus_in_event (ev);
1097 ArdourButton::on_focus_out_event (GdkEventFocus* ev)
1100 CairoWidget::set_dirty ();
1101 return CairoWidget::on_focus_out_event (ev);
1105 ArdourButton::on_key_release_event (GdkEventKey *ev) {
1107 (ev->keyval == GDK_space || ev->keyval == GDK_Return))
1111 _action->activate ();
1115 return CairoWidget::on_key_release_event (ev);
1119 ArdourButton::on_enter_notify_event (GdkEventCrossing* ev)
1121 _hovering = (_elements & Inactive) ? false : true;
1123 if (ARDOUR_UI::config()->get_widget_prelight()) {
1124 CairoWidget::set_dirty ();
1127 return CairoWidget::on_enter_notify_event (ev);
1131 ArdourButton::on_leave_notify_event (GdkEventCrossing* ev)
1135 if (ARDOUR_UI::config()->get_widget_prelight()) {
1136 CairoWidget::set_dirty ();
1139 return CairoWidget::on_leave_notify_event (ev);
1143 ArdourButton::set_tweaks (Tweaks t)
1147 if (is_realized()) {
1154 ArdourButton::action_sensitivity_changed ()
1156 if (_action->property_sensitive ()) {
1157 set_visual_state (Gtkmm2ext::VisualState (visual_state() & ~Gtkmm2ext::Insensitive));
1159 set_visual_state (Gtkmm2ext::VisualState (visual_state() | Gtkmm2ext::Insensitive));
1164 ArdourButton::set_layout_ellipsize_width (int w)
1166 if (_layout_ellipsize_width == w) {
1169 _layout_ellipsize_width = w;
1173 if (_layout_ellipsize_width > 3 * PANGO_SCALE) {
1174 _layout->set_width (_layout_ellipsize_width - 3 * PANGO_SCALE);
1176 if (is_realized ()) {
1182 ArdourButton::set_text_ellipsize (Pango::EllipsizeMode e)
1184 if (_ellipsis == e) {
1191 _layout->set_ellipsize(_ellipsis);
1192 if (_layout_ellipsize_width > 3 * PANGO_SCALE) {
1193 _layout->set_width (_layout_ellipsize_width - 3 * PANGO_SCALE);
1195 if (is_realized ()) {
1201 ArdourButton::ensure_layout ()
1205 _layout = Pango::Layout::create (get_pango_context());
1206 _layout->set_ellipsize(_ellipsis);
1207 if (_layout_ellipsize_width > 3 * PANGO_SCALE) {
1208 _layout->set_width (_layout_ellipsize_width - 3* PANGO_SCALE);
1214 ArdourButton::recalc_char_pixel_geometry ()
1216 if (_char_pixel_height > 0 && _char_pixel_width > 0) {
1220 // NB. this is not static, since the geometry is different
1221 // depending on the font used.
1223 std::string x = _("ABCDEFGHIJLKMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789");
1224 _layout->set_text (x);
1225 _layout->get_pixel_size (w, h);
1226 _char_pixel_height = std::max(4, h);
1227 // number of actual chars in the string (not bytes)
1228 // Glib to the rescue.
1229 Glib::ustring gx(x);
1230 _char_avg_pixel_width = w / (float)gx.size();
1231 _char_pixel_width = std::max(4, (int) ceil (_char_avg_pixel_width));
1232 _layout->set_text (_text);
1236 ArdourButton::action_visibility_changed ()
1238 if (_action->property_visible ()) {
1246 ArdourButton::action_tooltip_changed ()
1248 string str = _action->property_tooltip().get_value();
1249 ARDOUR_UI::instance()->set_tip (*this, str);
1253 ArdourButton::set_elements (Element e)
1256 CairoWidget::set_dirty ();
1260 ArdourButton::add_elements (Element e)
1262 _elements = (ArdourButton::Element) (_elements | e);
1263 CairoWidget::set_dirty ();
1267 ArdourButton::set_icon (Icon i)
1270 CairoWidget::set_dirty ();
1274 ArdourButton::set_custom_led_color (uint32_t c, bool useit)
1276 if (led_custom_color == c && use_custom_led_color == useit) {
1280 led_custom_color = c;
1281 use_custom_led_color = useit;
1282 CairoWidget::set_dirty ();