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"
29 #include "gtkmm2ext/utils.h"
30 #include "gtkmm2ext/rgb_macros.h"
31 #include "gtkmm2ext/gui_thread.h"
33 #include "ardour_button.h"
34 #include "ardour_ui.h"
35 #include "global_signals.h"
47 ArdourButton::Element ArdourButton::default_elements = ArdourButton::Element (ArdourButton::Edge|ArdourButton::Body|ArdourButton::Text);
48 ArdourButton::Element ArdourButton::led_default_elements = ArdourButton::Element (ArdourButton::default_elements|ArdourButton::Indicator);
49 ArdourButton::Element ArdourButton::just_led_default_elements = ArdourButton::Element (ArdourButton::Edge|ArdourButton::Body|ArdourButton::Indicator);
51 ArdourButton::ArdourButton (Element e)
53 , _act_on_release (true)
57 , _corner_radius (9.0)
60 , led_inset_pattern (0)
61 , reflection_pattern (0)
63 , _fixed_diameter (true)
64 , _distinct_led_click (false)
66 ColorsChanged.connect (sigc::mem_fun (*this, &ArdourButton::color_handler));
67 StateChanged.connect (sigc::mem_fun (*this, &ArdourButton::state_handler));
70 ArdourButton::~ArdourButton()
75 ArdourButton::set_text (const std::string& str)
79 if (!_layout && !_text.empty()) {
80 _layout = Pango::Layout::create (get_pango_context());
83 _layout->set_text (str);
89 ArdourButton::set_markup (const std::string& str)
94 _layout = Pango::Layout::create (get_pango_context());
97 _layout->set_text (str);
102 ArdourButton::render (cairo_t* cr)
104 if (!_fixed_diameter) {
105 _diameter = std::min (_width, _height);
108 /* background fill. use parent window style, so that we fit in nicely.
111 Color c = get_parent_bg ();
113 cairo_rectangle (cr, 0, 0, _width, _height);
114 cairo_stroke_preserve (cr);
115 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
118 if (_elements & Edge) {
119 Gtkmm2ext::rounded_rectangle (cr, 0, 0, _width, _height, _corner_radius);
120 cairo_set_source (cr, edge_pattern);
124 if (_elements & Body) {
125 if (_elements & Edge) {
126 Gtkmm2ext::rounded_rectangle (cr, 1, 1, _width-2, _height-2, _corner_radius - 1.0);
128 Gtkmm2ext::rounded_rectangle (cr, 0, 0, _width, _height, _corner_radius - 1.0);
130 cairo_set_source (cr, fill_pattern);
136 if ((_elements & Text) && !_text.empty()) {
137 cairo_set_source_rgba (cr, text_r, text_g, text_b, text_a);
139 if (_elements & Indicator) {
141 cairo_move_to (cr, _diameter + 3 + 4, _height/2.0 - _text_height/2.0);
143 cairo_move_to (cr, 3, _height/2.0 - _text_height/2.0);
147 cairo_move_to (cr, (_width - _text_width)/2.0, _height/2.0 - _text_height/2.0);
150 pango_cairo_show_layout (cr, _layout->gobj());
153 if (_elements & Indicator) {
155 /* move to the center of the indicator/led */
159 if (_elements & Text) {
161 cairo_translate (cr, 3 + (_diameter/2.0), _height/2.0);
163 cairo_translate (cr, _width - ((_diameter/2.0) + 4.0), _height/2.0);
166 cairo_translate (cr, _width/2.0, _height/2.0);
170 cairo_arc (cr, 0, 0, _diameter/2, 0, 2 * M_PI);
171 cairo_set_source (cr, led_inset_pattern);
175 cairo_set_source_rgb (cr, 0, 0, 0);
176 cairo_arc (cr, 0, 0, _diameter/2-2, 0, 2 * M_PI);
180 cairo_set_source_rgba (cr, led_r, led_g, led_b, led_a);
181 cairo_arc (cr, 0, 0, _diameter/2-3, 0, 2 * M_PI);
185 cairo_scale(cr, 0.7, 0.7);
186 cairo_arc (cr, 0, 0, _diameter/2-3, 0, 2 * M_PI);
187 cairo_set_source (cr, reflection_pattern);
194 /* a partially transparent gray layer to indicate insensitivity */
196 if ((visual_state() & Insensitive)) {
197 cairo_rectangle (cr, 0, 0, _width, _height);
198 cairo_set_source_rgba (cr, 0.905, 0.917, 0.925, 0.5);
204 ArdourButton::state_handler ()
210 ArdourButton::set_diameter (float d)
212 _diameter = (d*2) + 5.0;
214 if (_diameter != 0.0) {
215 _fixed_diameter = true;
222 ArdourButton::set_corner_radius (float r)
229 ArdourButton::on_size_request (Gtk::Requisition* req)
234 CairoWidget::on_size_request (req);
236 if ((_elements & Text) && !_text.empty()) {
237 _layout->get_pixel_size (_text_width, _text_height);
244 if ((_elements & Indicator) && _fixed_diameter) {
245 req->width = _text_width + lrint (_diameter) + xpad;
246 req->height = max (_text_height, (int) lrint (_diameter)) + ypad;
248 req->width = _text_width + xpad;
249 req->height = _text_height + ypad;
254 ArdourButton::set_colors ()
256 uint32_t start_color;
262 /* we use the edge of the button to show Selected state, so the
263 * color/pattern used there will vary depending on that
267 cairo_pattern_destroy (edge_pattern);
270 if (_elements & Edge) {
272 edge_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, _height);
273 if (visual_state() & CairoWidget::Selected) {
274 start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 border start selected", get_name()));
275 end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 border end selected", get_name()));
277 start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 border start", get_name()));
278 end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 border end", get_name()));
280 UINT_TO_RGBA (start_color, &r, &g, &b, &a);
281 cairo_pattern_add_color_stop_rgba (edge_pattern, 0, r/255.0,g/255.0,b/255.0, 0.7);
282 UINT_TO_RGBA (end_color, &r, &g, &b, &a);
283 cairo_pattern_add_color_stop_rgba (edge_pattern, 1, r/255.0,g/255.0,b/255.0, 0.7);
287 /* the fill pattern is used to indicate Normal/Active/Mid state
291 cairo_pattern_destroy (fill_pattern);
294 if (_elements & Body) {
295 fill_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, _height);
297 if (active_state() == Mid) {
298 start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 fill start mid", get_name()));
299 end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 fill end mid", get_name()));
300 } else if (active_state() == Active) {
301 start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 fill start active", get_name()));
302 end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 fill end active", get_name()));
304 start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 fill start", get_name()));
305 end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 fill end", get_name()));
307 UINT_TO_RGBA (start_color, &r, &g, &b, &a);
308 cairo_pattern_add_color_stop_rgba (fill_pattern, 0, r/255.0,g/255.0,b/255.0, a/255.0);
309 UINT_TO_RGBA (end_color, &r, &g, &b, &a);
310 cairo_pattern_add_color_stop_rgba (fill_pattern, 1, r/255.0,g/255.0,b/255.0, a/255.0);
313 if (led_inset_pattern) {
314 cairo_pattern_destroy (led_inset_pattern);
317 if (reflection_pattern) {
318 cairo_pattern_destroy (reflection_pattern);
321 if (_elements & Indicator) {
322 led_inset_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, _diameter);
323 cairo_pattern_add_color_stop_rgba (led_inset_pattern, 0, 0,0,0, 0.4);
324 cairo_pattern_add_color_stop_rgba (led_inset_pattern, 1, 1,1,1, 0.7);
326 reflection_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, _diameter/2-3);
327 cairo_pattern_add_color_stop_rgba (reflection_pattern, 0, 1,1,1, active_state() ? 0.4 : 0.2);
328 cairo_pattern_add_color_stop_rgba (reflection_pattern, 1, 1,1,1, 0.0);
331 /* text and LED colors depend on Active/Normal/Mid */
333 if (active_state() == Active) {
334 text_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 text active", get_name()));
335 led_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 led active", get_name()));
336 } else if (active_state() == Mid) {
337 text_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 text mid", get_name()));
338 led_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 led active", get_name()));
340 text_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 text", get_name()));
341 led_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1 led", get_name()));
344 UINT_TO_RGBA (text_color, &r, &g, &b, &a);
349 UINT_TO_RGBA (led_color, &r, &g, &b, &a);
359 ArdourButton::set_led_left (bool yn)
365 ArdourButton::on_button_press_event (GdkEventButton *ev)
367 if ((_elements & Indicator) && _distinct_led_click) {
368 /* if within LED, swallow event */
370 int top = lrint (_height/2.0 - _diameter/2.0);
371 int bottom = lrint (_height/2.0 + _diameter/2.0);
375 if (_elements & Text) {
378 right = left + _diameter;
380 left = lrint (_width - 4 - _diameter/2.0);
381 right = left + _diameter;
384 left = _width/2.0 - (_diameter/2.0);
385 right = _width/2.0 + (_diameter/2.0);
388 if (ev->x >= left && ev->x <= right && ev->y <= bottom && ev->y >= top) {
393 if (binding_proxy.button_press_handler (ev)) {
397 if (!_act_on_release) {
399 _action->activate ();
408 ArdourButton::on_button_release_event (GdkEventButton *ev)
410 if ((_elements & Indicator) && _distinct_led_click) {
412 /* if within LED, emit signal */
414 int top = lrint (_height/2.0 - _diameter/2.0);
415 int bottom = lrint (_height/2.0 + _diameter/2.0);
420 right = left + _diameter;
422 left = lrint (_width - 4 - _diameter/2.0);
423 right = left + _diameter;
426 if (ev->x >= left && ev->x <= right && ev->y <= bottom && ev->y >= top) {
427 signal_led_clicked(); /* EMIT SIGNAL */
432 if (_act_on_release) {
434 _action->activate ();
443 ArdourButton::set_distinct_led_click (bool yn)
445 _distinct_led_click = yn;
449 ArdourButton::color_handler ()
456 ArdourButton::on_size_allocate (Allocation& alloc)
458 CairoWidget::on_size_allocate (alloc);
463 ArdourButton::set_controllable (boost::shared_ptr<Controllable> c)
465 watch_connection.disconnect ();
466 binding_proxy.set_controllable (c);
470 ArdourButton::watch ()
472 boost::shared_ptr<Controllable> c (binding_proxy.get_controllable ());
475 warning << _("button cannot watch state of non-existing Controllable\n") << endmsg;
479 c->Changed.connect (watch_connection, invalidator(*this), boost::bind (&ArdourButton::controllable_changed, this), gui_context());
483 ArdourButton::controllable_changed ()
485 float val = binding_proxy.get_controllable()->get_value();
487 if (fabs (val) >= 0.5f) {
488 set_active_state (CairoWidget::Active);
490 unset_active_state ();
495 ArdourButton::set_related_action (RefPtr<Action> act)
499 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (_action);
501 tact->signal_toggled().connect (sigc::mem_fun (*this, &ArdourButton::action_toggled));
506 ArdourButton::action_toggled ()
508 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (_action);
511 if (tact->get_active()) {
512 set_active_state (CairoWidget::Active);
514 unset_active_state ();