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>
25 #include <gtkmm/toggleaction.h>
27 #include "pbd/compose.h"
28 #include "pbd/controllable.h"
29 #include "pbd/error.h"
30 #include "pbd/stacktrace.h"
32 #include "gtkmm2ext/colors.h"
33 #include "gtkmm2ext/gui_thread.h"
34 #include "gtkmm2ext/rgb_macros.h"
35 #include "gtkmm2ext/utils.h"
37 #include "widgets/ardour_button.h"
38 #include "widgets/tooltips.h"
39 #include "widgets/ui_config.h"
43 #define BASELINESTRETCH (1.25)
44 #define TRACKHEADERBTNW (3.10)
49 using namespace ArdourWidgets;
54 ArdourButton::Element ArdourButton::default_elements = ArdourButton::Element (ArdourButton::Edge|ArdourButton::Body|ArdourButton::Text);
55 ArdourButton::Element ArdourButton::led_default_elements = ArdourButton::Element (ArdourButton::default_elements|ArdourButton::Indicator);
56 ArdourButton::Element ArdourButton::just_led_default_elements = ArdourButton::Element (ArdourButton::Edge|ArdourButton::Body|ArdourButton::Indicator);
58 ArdourButton::ArdourButton (Element e)
62 , _icon (ArdourIcon::NoIcon)
64 , _icon_render_cb_data (0)
65 , _tweaks (Tweaks (0))
66 , _char_pixel_width (0)
67 , _char_pixel_height (0)
68 , _char_avg_pixel_width (0)
72 , _corner_radius (3.5)
77 , fill_inactive_color (0)
78 , fill_active_color (0)
79 , text_active_color(0)
80 , text_inactive_color(0)
82 , led_inactive_color(0)
83 , led_custom_color (0)
84 , use_custom_led_color (false)
87 , led_inset_pattern (0)
89 , _act_on_release (true)
91 , _distinct_led_click (false)
94 , _fixed_colors_set (false)
95 , _fallthrough_to_parent (false)
96 , _layout_ellipsize_width (-1)
97 , _ellipsis (Pango::ELLIPSIZE_NONE)
98 , _update_colors (true)
101 UIConfigurationBase::instance().ColorsChanged.connect (sigc::mem_fun (*this, &ArdourButton::color_handler));
102 /* This is not provided by gtkmm */
103 signal_grab_broken_event().connect (sigc::mem_fun (*this, &ArdourButton::on_grab_broken_event));
106 ArdourButton::ArdourButton (const std::string& str, Element e)
110 , _icon (ArdourIcon::NoIcon)
111 , _tweaks (Tweaks (0))
112 , _char_pixel_width (0)
113 , _char_pixel_height (0)
114 , _char_avg_pixel_width (0)
118 , _corner_radius (3.5)
123 , fill_inactive_color (0)
124 , fill_active_color (0)
125 , text_active_color(0)
126 , text_inactive_color(0)
127 , led_active_color(0)
128 , led_inactive_color(0)
129 , led_custom_color (0)
130 , use_custom_led_color (false)
132 , concave_pattern (0)
133 , led_inset_pattern (0)
135 , _act_on_release (true)
137 , _distinct_led_click (false)
140 , _fixed_colors_set (false)
141 , _fallthrough_to_parent (false)
142 , _layout_ellipsize_width (-1)
143 , _ellipsis (Pango::ELLIPSIZE_NONE)
144 , _update_colors (true)
145 , _pattern_height (0)
148 UIConfigurationBase::instance().ColorsChanged.connect (sigc::mem_fun (*this, &ArdourButton::color_handler));
149 UIConfigurationBase::instance().DPIReset.connect (sigc::mem_fun (*this, &ArdourButton::on_name_changed));
150 /* This is not provided by gtkmm */
151 signal_grab_broken_event().connect (sigc::mem_fun (*this, &ArdourButton::on_grab_broken_event));
154 ArdourButton::~ArdourButton()
158 if (convex_pattern) {
159 cairo_pattern_destroy (convex_pattern);
162 if (concave_pattern) {
163 cairo_pattern_destroy (concave_pattern);
166 if (led_inset_pattern) {
167 cairo_pattern_destroy (led_inset_pattern);
172 ArdourButton::set_layout_font (const Pango::FontDescription& fd)
176 _layout->set_font_description (fd);
178 _char_pixel_width = 0;
179 _char_pixel_height = 0;
184 ArdourButton::set_text_internal () {
187 _layout->set_markup (_text);
189 _layout->set_text (_text);
194 ArdourButton::set_text (const std::string& str, bool markup)
196 if (!(_elements & Text)) {
199 if (_text == str && _markup == markup) {
205 if (!is_realized()) {
209 if (_layout && _layout->get_text() != _text) {
210 set_text_internal ();
211 /* on_size_request() will fill in _text_width/height
212 * so queue it even if _sizing_text != "" */
218 ArdourButton::set_sizing_text (const std::string& str)
220 if (_sizing_text == str) {
228 ArdourButton::set_angle (const double angle)
234 ArdourButton::set_alignment (const float xa, const float ya)
241 /* TODO make this a dedicated function elsewhere.
244 * virtual ArdourButton::render_vector_icon()
245 * ArdourIconButton::render_vector_icon
248 * ARDOUR_UI_UTILS::render_vector_icon()
251 ArdourButton::render (Cairo::RefPtr<Cairo::Context> const& ctx, cairo_rectangle_t*)
253 cairo_t* cr = ctx->cobj();
258 const float corner_radius = std::max(2.f, _corner_radius * UIConfigurationBase::instance().get_ui_scale());
260 if (_update_colors) {
263 if (get_height() != _pattern_height) {
267 if ( active_state() == Gtkmm2ext::ExplicitActive ) {
268 text_color = text_active_color;
269 led_color = led_active_color;
271 text_color = text_inactive_color;
272 led_color = led_inactive_color;
275 if (use_custom_led_color) {
276 led_color = led_custom_color;
279 void (*rounded_function)(cairo_t*, double, double, double, double, double);
281 switch (_corner_mask) {
282 case 0x1: /* upper left only */
283 rounded_function = Gtkmm2ext::rounded_top_left_rectangle;
285 case 0x2: /* upper right only */
286 rounded_function = Gtkmm2ext::rounded_top_right_rectangle;
288 case 0x3: /* upper only */
289 rounded_function = Gtkmm2ext::rounded_top_rectangle;
291 /* should really have functions for lower right, lower left,
292 lower only, but for now, we don't
295 rounded_function = Gtkmm2ext::rounded_rectangle;
298 // draw edge (filling a rect underneath, rather than stroking a border on top, allows the corners to be lighter-weight.
299 if ((_elements & (Body|Edge)) == (Body|Edge)) {
300 rounded_function (cr, 0, 0, get_width(), get_height(), corner_radius + 1.5);
301 cairo_set_source_rgba (cr, 0, 0, 0, 1);
306 if ((_elements & Body)==Body) {
307 rounded_function (cr, 1, 1, get_width() - 2, get_height() - 2, corner_radius);
308 if (active_state() == Gtkmm2ext::ImplicitActive && !((_elements & Indicator)==Indicator)) {
309 Gtkmm2ext::set_source_rgba (cr, fill_inactive_color);
311 } else if ( (active_state() == Gtkmm2ext::ExplicitActive) && !((_elements & Indicator)==Indicator) ) {
313 Gtkmm2ext::set_source_rgba (cr, fill_active_color);
315 } else { //inactive, or it has an indicator
317 Gtkmm2ext::set_source_rgba (cr, fill_inactive_color);
322 // IMPLICIT ACTIVE: draw a border of the active color
323 if ((_elements & Body)==Body) {
324 if (active_state() == Gtkmm2ext::ImplicitActive && !((_elements & Indicator)==Indicator)) {
325 cairo_set_line_width (cr, 2.0);
326 rounded_function (cr, 2, 2, get_width() - 4, get_height() - 4, corner_radius-0.5);
327 Gtkmm2ext::set_source_rgba (cr, fill_active_color);
332 //show the "convex" or "concave" gradient
333 if (!_flat_buttons && (_elements & Body)==Body) {
334 if ( active_state() == Gtkmm2ext::ExplicitActive && ( !((_elements & Indicator)==Indicator) || use_custom_led_color) ) {
336 cairo_set_source (cr, concave_pattern);
337 Gtkmm2ext::rounded_rectangle (cr, 1, 1, get_width() - 2, get_height() - 2, corner_radius);
340 cairo_set_source (cr, convex_pattern);
341 Gtkmm2ext::rounded_rectangle (cr, 1, 1, get_width() - 2, get_height() - 2, corner_radius);
348 double x = rint((get_width() - _pixbuf->get_width()) * .5);
349 const double y = rint((get_height() - _pixbuf->get_height()) * .5);
350 #if 0 // DEBUG style (print on hover)
351 if (_hovering || (_elements & Inactive)) {
352 printf("%s: p:%dx%d (%dx%d)\n",
354 _pixbuf->get_width(), _pixbuf->get_height(),
355 get_width(), get_height());
358 if (_elements & Menu) {
359 //if this is a DropDown with an icon, then we need to
360 //move the icon left slightly to accomomodate the arrow
363 cairo_rectangle (cr, x, y, _pixbuf->get_width(), _pixbuf->get_height());
364 gdk_cairo_set_source_pixbuf (cr, _pixbuf->gobj(), x, y);
367 else /* VectorIcon, IconRenderCallback are exclusive to Pixbuf Icons */
368 if (_elements & (VectorIcon | IconRenderCallback)) {
369 int vw = get_width();
370 int vh = get_height();
371 if (_elements & Menu) {
374 if (_elements & VectorIcon) {
375 ArdourIcon::render (cr, _icon, vw, vh, active_state(), text_color);
378 rounded_function (cr, 0, 0, get_width(), get_height(), corner_radius + 1.5);
380 _icon_render_cb (cr, vw, vh, text_color, _icon_render_cb_data);
385 const int text_margin = char_pixel_width();
387 if (!_pixbuf && ((_elements & Text)==Text) && !_text.empty()) {
389 #if 0 // DEBUG style (print on hover)
390 if (_hovering || (_elements & Inactive)) {
391 bool layout_font = true;
392 Pango::FontDescription fd = _layout->get_font_description();
393 if (fd.gobj() == NULL) {
395 fd = get_pango_context()->get_font_description();
397 printf("%s: f:%dx%d aw:%.3f bh:%.0f t:%dx%d (%dx%d) %s\"%s\"\n",
399 char_pixel_width(), char_pixel_height(), char_avg_pixel_width(),
400 ceil(char_pixel_height() * BASELINESTRETCH),
401 _text_width, _text_height,
402 get_width(), get_height(),
403 layout_font ? "L:" : "W:",
404 fd.to_string().c_str());
409 cairo_rectangle (cr, 2, 1, get_width() - 4, get_height() - 2);
413 Gtkmm2ext::set_source_rgba (cr, text_color);
414 const double text_ypos = (get_height() - _text_height) * .5;
416 if (_elements & Menu) {
417 // always left align (dropdown)
418 cairo_move_to (cr, text_margin, text_ypos);
419 pango_cairo_show_layout (cr, _layout->gobj());
420 } else if ( (_elements & Indicator) == Indicator) {
421 // left/right align depending on LED position
423 cairo_move_to (cr, text_margin + _diameter + .5 * char_pixel_width(), text_ypos);
425 cairo_move_to (cr, text_margin, text_ypos);
427 pango_cairo_show_layout (cr, _layout->gobj());
429 /* centered text otherwise */
436 cairo_get_matrix (cr, &m1);
437 cairo_matrix_t m2 = m1;
440 cairo_set_matrix (cr, &m2);
443 cairo_rotate(cr, _angle * M_PI / 180.0);
446 cairo_device_to_user(cr, &ww, &wh);
447 xa = text_margin + (ww - _text_width - 2 * text_margin) * _xalign;
448 ya = (wh - _text_height) * _yalign;
450 /* quick hack for left/bottom alignment at -90deg
451 * TODO this should be generalized incl rotation.
452 * currently only 'user' of this API is meter_strip.cc
454 if (_xalign < 0) xa = ceil(.5 + (ww * fabs(_xalign) + text_margin));
456 cairo_move_to (cr, xa + m1.x0, ya + m1.y0);
457 pango_cairo_update_layout(cr, _layout->gobj());
458 pango_cairo_show_layout (cr, _layout->gobj());
464 if (_elements & Menu) {
465 const float trih = ceil(_diameter * .5);
466 const float triw2 = ceil(.577 * _diameter * .5); // 1/sqrt(3) Equilateral triangle
468 cairo_set_source_rgba (cr, 1, 1, 1, 0.4);
469 cairo_move_to(cr, get_width() - triw2 - 3. , rint((get_height() + trih) * .5));
470 cairo_rel_line_to(cr, -triw2, -trih);
471 cairo_rel_line_to(cr, 2. * triw2, 0);
472 cairo_close_path(cr);
474 cairo_set_source_rgba (cr, 1, 1, 1, 0.4);
477 cairo_move_to(cr, get_width() - triw2 - 3 , rint((get_height() + trih) * .5));
478 cairo_rel_line_to(cr, .5 - triw2, .5 - trih);
479 cairo_rel_line_to(cr, 2. * triw2 - 1, 0);
480 cairo_close_path(cr);
481 cairo_set_source_rgba (cr, 0, 0, 0, 0.8);
482 cairo_set_line_width(cr, 1);
487 if (_elements & Indicator) {
490 /* move to the center of the indicator/led */
491 if (_elements & Text) {
492 int led_xoff = ceil(char_pixel_width() + _diameter * .5);
494 cairo_translate (cr, led_xoff, get_height() * .5);
496 cairo_translate (cr, get_width() - led_xoff, get_height() * .5);
499 cairo_translate (cr, get_width() * .5, get_height() * .5);
503 if (!_flat_buttons) {
504 cairo_arc (cr, 0, 0, _diameter * .5, 0, 2 * M_PI);
505 cairo_set_source (cr, led_inset_pattern);
510 cairo_set_source_rgb (cr, 0, 0, 0);
511 cairo_arc (cr, 0, 0, _diameter * .5 - 1 * UIConfigurationBase::instance().get_ui_scale(), 0, 2 * M_PI);
515 Gtkmm2ext::set_source_rgba (cr, led_color);
516 cairo_arc (cr, 0, 0, _diameter * .5 - 3 * UIConfigurationBase::instance().get_ui_scale(), 0, 2 * M_PI);
522 // a transparent overlay to indicate insensitivity
523 if ((visual_state() & Gtkmm2ext::Insensitive)) {
524 rounded_function (cr, 0, 0, get_width(), get_height(), corner_radius);
525 uint32_t ins_color = UIConfigurationBase::instance().color ("gtk_background");
526 Gtkmm2ext::set_source_rgb_a (cr, ins_color, 0.6);
530 // if requested, show hovering
531 if (UIConfigurationBase::instance().get_widget_prelight()
532 && !((visual_state() & Gtkmm2ext::Insensitive))) {
534 rounded_function (cr, 1, 1, get_width() - 2, get_height() - 2, corner_radius);
535 cairo_set_source_rgba (cr, 0.905, 0.917, 0.925, 0.2);
540 //user is currently pressing the button. dark outline helps to indicate this
541 if (_grabbed && !(_elements & (Inactive|Menu))) {
542 rounded_function (cr, 1, 1, get_width() - 2, get_height() - 2, corner_radius);
543 cairo_set_line_width(cr, 2);
544 cairo_set_source_rgba (cr, 0.1, 0.1, 0.1, .5);
548 //some buttons (like processor boxes) can be selected (so they can be deleted). Draw a selection indicator
549 if (visual_state() & Gtkmm2ext::Selected) {
550 cairo_set_line_width(cr, 1);
551 cairo_set_source_rgba (cr, 1, 0, 0, 0.8);
552 rounded_function (cr, 0.5, 0.5, get_width() - 1, get_height() - 1, corner_radius);
556 //I guess this means we have keyboard focus. I don't think this works currently
558 //A: yes, it's keyboard focus and it does work when there's no editor window
559 // (the editor is always the first receiver for KeyDown).
560 // It's needed for eg. the engine-dialog at startup or after closing a sesion.
562 rounded_function (cr, 1.5, 1.5, get_width() - 3, get_height() - 3, corner_radius);
563 cairo_set_source_rgba (cr, 0.905, 0.917, 0.925, 0.8);
565 cairo_set_dash (cr, &dashes, 1, 0);
566 cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT);
567 cairo_set_line_width (cr, 1.0);
569 cairo_set_dash (cr, 0, 0, 0);
574 ArdourButton::set_corner_radius (float r)
577 CairoWidget::set_dirty ();
581 ArdourButton::on_realize()
583 CairoWidget::on_realize ();
586 if (_layout->get_text() != _text) {
587 set_text_internal ();
594 ArdourButton::on_size_request (Gtk::Requisition* req)
596 req->width = req->height = 0;
597 CairoWidget::on_size_request (req);
599 if (_diameter == 0) {
600 const float newdia = rintf (11.f * UIConfigurationBase::instance().get_ui_scale());
601 if (_diameter != newdia) {
607 if (_elements & Text) {
610 set_text_internal ();
612 /* render() needs the size of the displayed text */
613 _layout->get_pixel_size (_text_width, _text_height);
615 if (_tweaks & OccasionalText) {
617 /* size should not change based on presence or absence
621 } else /*if (!_text.empty() || !_sizing_text.empty()) */ {
623 req->height = std::max(req->height, (int) ceil(char_pixel_height() * BASELINESTRETCH + 1.0));
624 req->width += rint(1.75 * char_pixel_width()); // padding
626 if (!_sizing_text.empty()) {
627 _layout->set_text (_sizing_text); /* use sizing text */
630 int sizing_text_width = 0, sizing_text_height = 0;
631 _layout->get_pixel_size (sizing_text_width, sizing_text_height);
633 req->width += sizing_text_width;
635 if (!_sizing_text.empty()) {
636 set_text_internal (); /* restore display text */
640 /* XXX hack (surprise). Deal with two common rotation angles */
642 if (_angle == 90 || _angle == 270) {
643 /* do not swap text width or height because we rely on
644 these being the un-rotated values in ::render()
646 swap (req->width, req->height);
655 req->width += _pixbuf->get_width() + char_pixel_width();
656 req->height = std::max(req->height, _pixbuf->get_height() + 4);
659 if (_elements & Indicator) {
660 req->width += lrint (_diameter) + char_pixel_width();
661 req->height = std::max (req->height, (int) lrint (_diameter) + 4);
664 if ((_elements & Menu)) {
665 req->width += _diameter + 4;
668 if (_elements & (VectorIcon | IconRenderCallback)) {
669 assert(!(_elements & Text));
670 const int wh = std::max (6., std::max (rint (TRACKHEADERBTNW * char_avg_pixel_width()), ceil (char_pixel_height() * BASELINESTRETCH + 1.)));
672 req->height = std::max(req->height, wh);
675 /* Tweaks to mess the nice stuff above up again. */
676 if (_tweaks & TrackHeader) {
677 // forget everything above and just use a fixed square [em] size
678 // "TrackHeader Buttons" are single letter (usually uppercase)
679 // a SizeGroup is much less efficient (lots of gtk work under the hood for each track)
680 const int wh = std::max (rint (TRACKHEADERBTNW * char_avg_pixel_width()), ceil (char_pixel_height() * BASELINESTRETCH + 1.));
684 else if (_tweaks & Square) {
685 // currerntly unused (again)
686 if (req->width < req->height)
687 req->width = req->height;
688 if (req->height < req->width)
689 req->height = req->width;
690 } else if (_sizing_text.empty() && _text_width > 0 && !(_elements & Menu)) {
691 // properly centered text for those elements that are centered
692 // (no sub-pixel offset)
693 if ((req->width - _text_width) & 1) { ++req->width; }
694 if ((req->height - _text_height) & 1) { ++req->height; }
697 printf("REQ: %s: %dx%d\n", get_name().c_str(), req->width, req->height);
702 * This sets the colors used for rendering based on the name of the button, and
703 * thus uses information from the GUI config data.
706 ArdourButton::set_colors ()
708 _update_colors = false;
710 if (_fixed_colors_set == 0x3) {
714 std::string name = get_name();
717 if (!(_fixed_colors_set & 0x1)) {
718 fill_active_color = UIConfigurationBase::instance().color (string_compose ("%1: fill active", name), &failed);
720 fill_active_color = UIConfigurationBase::instance().color ("generic button: fill active");
724 if (!(_fixed_colors_set & 0x2)) {
725 fill_inactive_color = UIConfigurationBase::instance().color (string_compose ("%1: fill", name), &failed);
727 fill_inactive_color = UIConfigurationBase::instance().color ("generic button: fill");
731 text_active_color = Gtkmm2ext::contrasting_text_color (fill_active_color);
732 text_inactive_color = Gtkmm2ext::contrasting_text_color (fill_inactive_color);
734 led_active_color = UIConfigurationBase::instance().color (string_compose ("%1: led active", name), &failed);
736 led_active_color = UIConfigurationBase::instance().color ("generic button: led active");
739 /* The inactive color for the LED is just a fairly dark version of the
743 Gtkmm2ext::HSV inactive (led_active_color);
746 led_inactive_color = inactive.color ();
750 * This sets the colors used for rendering based on two fixed values, rather
751 * than basing them on the button name, and thus information in the GUI config
754 void ArdourButton::set_fixed_colors (const uint32_t color_active, const uint32_t color_inactive)
756 set_active_color (color_active);
757 set_inactive_color (color_inactive);
760 void ArdourButton::set_active_color (const uint32_t color)
762 _fixed_colors_set |= 0x1;
764 fill_active_color = color;
766 unsigned char r, g, b, a;
767 UINT_TO_RGBA(color, &r, &g, &b, &a);
769 double white_contrast = (max (double(r), 255.) - min (double(r), 255.)) +
770 (max (double(g), 255.) - min (double(g), 255.)) +
771 (max (double(b), 255.) - min (double(b), 255.));
773 double black_contrast = (max (double(r), 0.) - min (double(r), 0.)) +
774 (max (double(g), 0.) - min (double(g), 0.)) +
775 (max (double(b), 0.) - min (double(b), 0.));
777 text_active_color = (white_contrast > black_contrast) ?
778 RGBA_TO_UINT(255, 255, 255, 255) : /* use white */
779 RGBA_TO_UINT( 0, 0, 0, 255); /* use black */
781 /* XXX what about led colors ? */
782 CairoWidget::set_dirty ();
785 void ArdourButton::set_inactive_color (const uint32_t color)
787 _fixed_colors_set |= 0x2;
789 fill_inactive_color = color;
791 unsigned char r, g, b, a;
792 UINT_TO_RGBA(color, &r, &g, &b, &a);
794 double white_contrast = (max (double(r), 255.) - min (double(r), 255.)) +
795 (max (double(g), 255.) - min (double(g), 255.)) +
796 (max (double(b), 255.) - min (double(b), 255.));
798 double black_contrast = (max (double(r), 0.) - min (double(r), 0.)) +
799 (max (double(g), 0.) - min (double(g), 0.)) +
800 (max (double(b), 0.) - min (double(b), 0.));
802 text_inactive_color = (white_contrast > black_contrast) ?
803 RGBA_TO_UINT(255, 255, 255, 255) : /* use white */
804 RGBA_TO_UINT( 0, 0, 0, 255); /* use black */
806 /* XXX what about led colors ? */
807 CairoWidget::set_dirty ();
811 ArdourButton::build_patterns ()
813 if (convex_pattern) {
814 cairo_pattern_destroy (convex_pattern);
818 if (concave_pattern) {
819 cairo_pattern_destroy (concave_pattern);
823 if (led_inset_pattern) {
824 cairo_pattern_destroy (led_inset_pattern);
825 led_inset_pattern = 0;
829 convex_pattern = cairo_pattern_create_linear (0.0, 0, 0.0, get_height());
830 cairo_pattern_add_color_stop_rgba (convex_pattern, 0.0, 0,0,0, 0.0);
831 cairo_pattern_add_color_stop_rgba (convex_pattern, 1.0, 0,0,0, 0.35);
834 concave_pattern = cairo_pattern_create_linear (0.0, 0, 0.0, get_height());
835 cairo_pattern_add_color_stop_rgba (concave_pattern, 0.0, 0,0,0, 0.5);
836 cairo_pattern_add_color_stop_rgba (concave_pattern, 0.7, 0,0,0, 0.0);
838 led_inset_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, _diameter);
839 cairo_pattern_add_color_stop_rgba (led_inset_pattern, 0, 0,0,0, 0.4);
840 cairo_pattern_add_color_stop_rgba (led_inset_pattern, 1, 1,1,1, 0.7);
842 _pattern_height = get_height() ;
846 ArdourButton::set_led_left (bool yn)
852 ArdourButton::on_button_press_event (GdkEventButton *ev)
854 focus_handler (this);
856 if (ev->button == 1 && (_elements & Indicator) && _led_rect && _distinct_led_click) {
857 if (ev->x >= _led_rect->x && ev->x < _led_rect->x + _led_rect->width &&
858 ev->y >= _led_rect->y && ev->y < _led_rect->y + _led_rect->height) {
863 if (binding_proxy.button_press_handler (ev)) {
868 CairoWidget::set_dirty ();
870 if (ev->button == 1 && !_act_on_release) {
872 _action->activate ();
877 if (_fallthrough_to_parent)
884 ArdourButton::on_button_release_event (GdkEventButton *ev)
886 if (ev->button == 1 && _hovering && (_elements & Indicator) && _led_rect && _distinct_led_click) {
887 if (ev->x >= _led_rect->x && ev->x < _led_rect->x + _led_rect->width &&
888 ev->y >= _led_rect->y && ev->y < _led_rect->y + _led_rect->height) {
889 signal_led_clicked(ev); /* EMIT SIGNAL */
895 CairoWidget::set_dirty ();
897 if (ev->button == 1 && _hovering) {
899 if (_act_on_release) {
901 _action->activate ();
907 if (_fallthrough_to_parent)
914 ArdourButton::set_distinct_led_click (bool yn)
916 _distinct_led_click = yn;
921 ArdourButton::color_handler ()
923 _update_colors = true;
924 CairoWidget::set_dirty ();
928 ArdourButton::on_size_allocate (Allocation& alloc)
930 CairoWidget::on_size_allocate (alloc);
935 ArdourButton::set_controllable (boost::shared_ptr<Controllable> c)
937 watch_connection.disconnect ();
938 binding_proxy.set_controllable (c);
942 ArdourButton::watch ()
944 boost::shared_ptr<Controllable> c (binding_proxy.get_controllable ());
947 warning << _("button cannot watch state of non-existing Controllable\n") << endmsg;
950 c->Changed.connect (watch_connection, invalidator(*this), boost::bind (&ArdourButton::controllable_changed, this), gui_context());
954 ArdourButton::controllable_changed ()
956 float val = binding_proxy.get_controllable()->get_value();
958 if (fabs (val) >= 0.5f) {
959 set_active_state (Gtkmm2ext::ExplicitActive);
961 unset_active_state ();
963 CairoWidget::set_dirty ();
967 ArdourButton::set_related_action (RefPtr<Action> act)
969 Gtkmm2ext::Activatable::set_related_action (act);
973 action_tooltip_changed ();
974 action_sensitivity_changed ();
976 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (_action);
979 tact->signal_toggled().connect (sigc::mem_fun (*this, &ArdourButton::action_toggled));
982 _action->connect_property_changed ("sensitive", sigc::mem_fun (*this, &ArdourButton::action_sensitivity_changed));
983 _action->connect_property_changed ("visible", sigc::mem_fun (*this, &ArdourButton::action_visibility_changed));
984 _action->connect_property_changed ("tooltip", sigc::mem_fun (*this, &ArdourButton::action_tooltip_changed));
989 ArdourButton::action_toggled ()
991 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (_action);
994 if (tact->get_active()) {
995 set_active_state (Gtkmm2ext::ExplicitActive);
997 unset_active_state ();
1003 ArdourButton::on_style_changed (const RefPtr<Gtk::Style>&)
1005 _update_colors = true;
1006 CairoWidget::set_dirty ();
1007 _char_pixel_width = 0;
1008 _char_pixel_height = 0;
1009 if (is_realized()) {
1015 ArdourButton::on_name_changed ()
1017 _char_pixel_width = 0;
1018 _char_pixel_height = 0;
1020 _update_colors = true;
1021 if (is_realized()) {
1027 ArdourButton::setup_led_rect ()
1029 if (!(_elements & Indicator)) {
1036 _led_rect = new cairo_rectangle_t;
1039 if (_elements & Text) {
1041 _led_rect->x = char_pixel_width();
1043 _led_rect->x = get_width() - char_pixel_width() + _diameter;
1047 _led_rect->x = .5 * get_width() - _diameter;
1050 _led_rect->y = .5 * (get_height() - _diameter);
1051 _led_rect->width = _diameter;
1052 _led_rect->height = _diameter;
1056 ArdourButton::set_image (const RefPtr<Gdk::Pixbuf>& img)
1058 _elements = (ArdourButton::Element) (_elements & ~ArdourButton::Text);
1060 if (is_realized()) {
1066 ArdourButton::set_active_state (Gtkmm2ext::ActiveState s)
1068 bool changed = (_active_state != s);
1069 CairoWidget::set_active_state (s);
1071 _update_colors = true;
1072 CairoWidget::set_dirty ();
1077 ArdourButton::set_visual_state (Gtkmm2ext::VisualState s)
1079 bool changed = (_visual_state != s);
1080 CairoWidget::set_visual_state (s);
1082 _update_colors = true;
1083 CairoWidget::set_dirty ();
1088 ArdourButton::on_focus_in_event (GdkEventFocus* ev)
1091 CairoWidget::set_dirty ();
1092 return CairoWidget::on_focus_in_event (ev);
1096 ArdourButton::on_focus_out_event (GdkEventFocus* ev)
1099 CairoWidget::set_dirty ();
1100 return CairoWidget::on_focus_out_event (ev);
1104 ArdourButton::on_key_release_event (GdkEventKey *ev) {
1105 if (_act_on_release && _focused &&
1106 (ev->keyval == GDK_space || ev->keyval == GDK_Return))
1110 _action->activate ();
1114 return CairoWidget::on_key_release_event (ev);
1118 ArdourButton::on_key_press_event (GdkEventKey *ev) {
1119 if (!_act_on_release && _focused &&
1120 (ev->keyval == GDK_space || ev->keyval == GDK_Return))
1124 _action->activate ();
1128 return CairoWidget::on_key_release_event (ev);
1132 ArdourButton::on_enter_notify_event (GdkEventCrossing* ev)
1134 _hovering = (_elements & Inactive) ? false : true;
1136 if (UIConfigurationBase::instance().get_widget_prelight()) {
1137 CairoWidget::set_dirty ();
1140 boost::shared_ptr<PBD::Controllable> c (binding_proxy.get_controllable ());
1142 PBD::Controllable::GUIFocusChanged (boost::weak_ptr<PBD::Controllable> (c));
1145 return CairoWidget::on_enter_notify_event (ev);
1149 ArdourButton::on_leave_notify_event (GdkEventCrossing* ev)
1153 if (UIConfigurationBase::instance().get_widget_prelight()) {
1154 CairoWidget::set_dirty ();
1157 if (binding_proxy.get_controllable()) {
1158 PBD::Controllable::GUIFocusChanged (boost::weak_ptr<PBD::Controllable> ());
1161 return CairoWidget::on_leave_notify_event (ev);
1165 ArdourButton::on_grab_broken_event(GdkEventGrabBroken* grab_broken_event) {
1166 /* Our implicit grab due to a button_press was broken by another grab:
1167 * the button will not get any button_release event if the mouse leaves
1168 * while the grab is taken, so unpress ourselves */
1170 CairoWidget::set_dirty ();
1175 ArdourButton::set_tweaks (Tweaks t)
1179 if (is_realized()) {
1186 ArdourButton::action_sensitivity_changed ()
1188 if (_action->property_sensitive ()) {
1189 set_visual_state (Gtkmm2ext::VisualState (visual_state() & ~Gtkmm2ext::Insensitive));
1191 set_visual_state (Gtkmm2ext::VisualState (visual_state() | Gtkmm2ext::Insensitive));
1196 ArdourButton::set_layout_ellipsize_width (int w)
1198 if (_layout_ellipsize_width == w) {
1201 _layout_ellipsize_width = w;
1205 if (_layout_ellipsize_width > 3 * PANGO_SCALE) {
1206 _layout->set_width (_layout_ellipsize_width - 3 * PANGO_SCALE);
1208 if (is_realized ()) {
1214 ArdourButton::set_text_ellipsize (Pango::EllipsizeMode e)
1216 if (_ellipsis == e) {
1223 _layout->set_ellipsize(_ellipsis);
1224 if (_layout_ellipsize_width > 3 * PANGO_SCALE) {
1225 _layout->set_width (_layout_ellipsize_width - 3 * PANGO_SCALE);
1227 if (is_realized ()) {
1233 ArdourButton::ensure_layout ()
1237 _layout = Pango::Layout::create (get_pango_context());
1238 _layout->set_ellipsize(_ellipsis);
1239 if (_layout_ellipsize_width > 3 * PANGO_SCALE) {
1240 _layout->set_width (_layout_ellipsize_width - 3* PANGO_SCALE);
1246 ArdourButton::recalc_char_pixel_geometry ()
1248 if (_char_pixel_height > 0 && _char_pixel_width > 0) {
1252 // NB. this is not static, since the geometry is different
1253 // depending on the font used.
1255 std::string x = _("@ABCDEFGHIJLKMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789");
1256 _layout->set_text (x);
1257 _layout->get_pixel_size (w, h);
1258 _char_pixel_height = std::max(4, h);
1259 // number of actual chars in the string (not bytes)
1260 // Glib to the rescue.
1261 Glib::ustring gx(x);
1262 _char_avg_pixel_width = w / (float)gx.size();
1263 _char_pixel_width = std::max(4, (int) ceil (_char_avg_pixel_width));
1264 set_text_internal (); /* restore display text */
1268 ArdourButton::action_visibility_changed ()
1270 if (_action->property_visible ()) {
1278 ArdourButton::action_tooltip_changed ()
1280 string str = _action->property_tooltip().get_value();
1281 set_tooltip (*this, str);
1285 ArdourButton::set_elements (Element e)
1288 CairoWidget::set_dirty ();
1292 ArdourButton::add_elements (Element e)
1294 _elements = (ArdourButton::Element) (_elements | e);
1295 CairoWidget::set_dirty ();
1299 ArdourButton::set_icon (ArdourIcon::Icon i)
1302 _icon_render_cb = 0;
1303 _icon_render_cb_data = 0;
1304 _elements = (ArdourButton::Element) ((_elements | VectorIcon) & ~(ArdourButton::Text | IconRenderCallback));
1305 CairoWidget::set_dirty ();
1309 ArdourButton::set_icon (rendercallback_t cb, void* d)
1312 _elements = (ArdourButton::Element) ((_elements | ArdourButton::Text) & ~(IconRenderCallback | VectorIcon));
1313 _icon_render_cb = 0;
1314 _icon_render_cb_data = 0;
1316 _elements = (ArdourButton::Element) ((_elements | IconRenderCallback) & ~(ArdourButton::Text | VectorIcon));
1317 _icon_render_cb = cb;
1318 _icon_render_cb_data = d;
1320 CairoWidget::set_dirty ();
1324 ArdourButton::set_custom_led_color (uint32_t c, bool useit)
1326 if (led_custom_color == c && use_custom_led_color == useit) {
1330 led_custom_color = c;
1331 use_custom_led_color = useit;
1332 CairoWidget::set_dirty ();