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Copyright (C) 2010 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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#include <pangomm/layout.h>
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#include "pbd/compose.h"
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#include "pbd/error.h"
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#include "gtkmm2ext/utils.h"
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#include "gtkmm2ext/rgb_macros.h"
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#include "gtkmm2ext/gui_thread.h"
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#include "ardour/rc_configuration.h" // for widget prelight preference
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#include "ardour_button.h"
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#include "ardour_ui.h"
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#include "global_signals.h"
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#define REFLECTION_HEIGHT 2
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ArdourButton::Element ArdourButton::default_elements = ArdourButton::Element (ArdourButton::Edge|ArdourButton::Body|ArdourButton::Text);
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ArdourButton::Element ArdourButton::led_default_elements = ArdourButton::Element (ArdourButton::default_elements|ArdourButton::Indicator);
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ArdourButton::Element ArdourButton::just_led_default_elements = ArdourButton::Element (ArdourButton::Edge|ArdourButton::Body|ArdourButton::Indicator);
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bool ArdourButton::_flat_buttons = false;
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ArdourButton::ArdourButton (Element e)
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, _tweaks (Tweaks (0))
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, _corner_radius (4.0)
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, fill_color_active (0)
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, fill_color_inactive (0)
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, fill_pattern_active (0)
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, led_inset_pattern (0)
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, reflection_pattern (0)
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, _act_on_release (true)
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, _fixed_diameter (true)
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, _distinct_led_click (false)
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ColorsChanged.connect (sigc::mem_fun (*this, &ArdourButton::color_handler));
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ArdourButton::ArdourButton (const std::string& str, Element e)
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, _tweaks (Tweaks (0))
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, _corner_radius (4.0)
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, fill_color_active (0)
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, fill_color_inactive (0)
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, fill_pattern_active (0)
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, led_inset_pattern (0)
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, reflection_pattern (0)
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, _act_on_release (true)
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, _fixed_diameter (true)
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, _distinct_led_click (false)
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ArdourButton::~ArdourButton()
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cairo_pattern_destroy (shine_pattern);
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cairo_pattern_destroy (fill_pattern);
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if (fill_pattern_active) {
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cairo_pattern_destroy (fill_pattern_active);
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if (led_inset_pattern) {
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cairo_pattern_destroy (led_inset_pattern);
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if (reflection_pattern) {
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cairo_pattern_destroy (reflection_pattern);
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ArdourButton::set_text (const std::string& str)
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if (!_layout && !_text.empty()) {
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_layout = Pango::Layout::create (get_pango_context());
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_layout->set_text (str);
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ArdourButton::set_markup (const std::string& str)
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_layout = Pango::Layout::create (get_pango_context());
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_layout->set_text (str);
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ArdourButton::set_angle (const double angle)
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ArdourButton::set_alignment (const float xa, const float ya)
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ArdourButton::render (cairo_t* cr)
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void (*rounded_function)(cairo_t*, double, double, double, double, double);
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switch (_corner_mask) {
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case 0x1: /* upper left only */
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rounded_function = Gtkmm2ext::rounded_top_left_rectangle;
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case 0x2: /* upper right only */
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rounded_function = Gtkmm2ext::rounded_top_right_rectangle;
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case 0x3: /* upper only */
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rounded_function = Gtkmm2ext::rounded_top_rectangle;
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/* should really have functions for lower right, lower left,
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lower only, but for now, we don't
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rounded_function = Gtkmm2ext::rounded_rectangle;
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if (!_fixed_diameter) {
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_diameter = std::min (get_width(), get_height());
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if ((_elements & Body)==Body) {
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if (_elements & Edge) {
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cairo_set_source_rgba (cr, 0, 0, 0, 1);
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rounded_function(cr, 0, 0, get_width(), get_height(), _corner_radius);
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rounded_function (cr, 1, 1, get_width()-2, get_height()-2, _corner_radius - 1.5);
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rounded_function (cr, 0, 0, get_width(), get_height(), _corner_radius);
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if (active_state() == Gtkmm2ext::ImplicitActive) {
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if (!(_tweaks & ImplicitUsesSolidColor)) {
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cairo_set_source (cr, fill_pattern);
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cairo_set_source (cr, fill_pattern_active);
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if (!(_tweaks & ImplicitUsesSolidColor)) {
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UINT_TO_RGBA (fill_color_active, &r, &g, &b, &a);
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cairo_set_line_width (cr, 1.0);
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rounded_function (cr, 2, 2, get_width()-4, get_height()-4, _corner_radius - 1.5);
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cairo_set_source_rgba (cr, r/255.0, g/255.0, b/255.0, a/255.0);
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} else if (active_state() == Gtkmm2ext::ExplicitActive || ((_elements & Indicator)==Indicator) ) {
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cairo_set_source (cr, fill_pattern_active);
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cairo_set_source (cr, fill_pattern);
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if ( ((_elements & FlatFace)==FlatFace) && (active_state() != Gtkmm2ext::ExplicitActive) ) {
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if ( !_flat_buttons ) {
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float rheight = get_height()*0.5-REFLECTION_HEIGHT;
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Gtkmm2ext::rounded_rectangle (cr, 2, 3, get_width()-4, rheight, _corner_radius-1);
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cairo_set_source (cr, shine_pattern);
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if (active_state() == Gtkmm2ext::ExplicitActive) {
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UINT_TO_RGBA (fill_color_active, &r, &g, &b, &a);
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cairo_set_line_width (cr, 2.0);
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rounded_function (cr, 2, 2, get_width()-4, get_height()-4, _corner_radius - 2.0);
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cairo_set_source_rgba (cr, r/255.0, g/255.0, b/255.0, a/255.0);
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UINT_TO_RGBA (fill_color_inactive, &r, &g, &b, &a);
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cairo_set_line_width (cr, 2.0);
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rounded_function (cr, 2, 2, get_width()-4, get_height()-4, _corner_radius - 2.0);
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cairo_set_source_rgba (cr, r/255.0, g/255.0, b/255.0, a/255.0);
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x = (get_width() - _pixbuf->get_width())/2.0;
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y = (get_height() - _pixbuf->get_height())/2.0;
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cairo_rectangle (cr, x, y, _pixbuf->get_width(), _pixbuf->get_height());
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gdk_cairo_set_source_pixbuf (cr, _pixbuf->gobj(), x, y);
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if (get_width() < 75) {
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if ( ((_elements & Text)==Text) && !_text.empty()) {
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cairo_set_source_rgba (cr, text_r, text_g, text_b, text_a);
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if (_elements & Indicator) {
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cairo_move_to (cr, text_margin + _diameter + 4, get_height()/2.0 - _text_height/2.0);
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cairo_move_to (cr, text_margin, get_height()/2.0 - _text_height/2.0);
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pango_cairo_show_layout (cr, _layout->gobj());
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cairo_save (cr); // TODO retain rotataion.. adj. LED,...
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cairo_rotate(cr, _angle * M_PI / 180.0);
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cairo_device_to_user(cr, &ww, &wh);
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xa = (ww - _text_width) * _xalign;
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ya = (wh - _text_height) * _yalign;
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/* quick hack for left/bottom alignment at -90deg
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* TODO this should be generalized incl rotation.
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* currently only 'user' of this API is meter_strip.cc
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if (_xalign < 0) xa = (ww * fabs(_xalign) + text_margin);
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// TODO honor left/right text_margin with min/max()
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cairo_move_to (cr, xa, ya);
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pango_cairo_update_layout(cr, _layout->gobj());
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pango_cairo_show_layout (cr, _layout->gobj());
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/* use old center'ed layout for follow up items - until rotation/aligment code is completed */
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cairo_move_to (cr, (get_width() - _text_width)/2.0, get_height()/2.0 - _text_height/2.0);
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if (((_elements & Indicator)==Indicator)) {
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/* move to the center of the indicator/led */
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if (_elements & Text) {
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cairo_translate (cr, text_margin + (_diameter/2.0), get_height()/2.0);
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cairo_translate (cr, get_width() - ((_diameter/2.0) + 4.0), get_height()/2.0);
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cairo_translate (cr, get_width()/2.0, get_height()/2.0);
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cairo_arc (cr, 0, 0, _diameter/2, 0, 2 * M_PI);
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cairo_set_source (cr, led_inset_pattern);
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cairo_set_source_rgb (cr, 0, 0, 0);
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cairo_arc (cr, 0, 0, _diameter/2-2, 0, 2 * M_PI);
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cairo_set_source_rgba (cr, led_r, led_g, led_b, led_a);
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cairo_arc (cr, 0, 0, _diameter/2-3, 0, 2 * M_PI);
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/* a partially transparent gray layer to indicate insensitivity */
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if ((visual_state() & Gtkmm2ext::Insensitive)) {
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rounded_function (cr, 0, 0, get_width(), get_height(), _corner_radius);
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cairo_set_source_rgba (cr, 0.505, 0.517, 0.525, 0.6);
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bool show_reflection = (active_state() == Gtkmm2ext::ExplicitActive);
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show_reflection &= !_flat_buttons;
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show_reflection &= !((_elements & Indicator)==Indicator);
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if ( show_reflection ) {
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float rheight = get_height()*0.5-REFLECTION_HEIGHT;
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Gtkmm2ext::rounded_rectangle (cr, 2, get_height()*0.5-1, get_width()-4, rheight, _corner_radius-1);
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cairo_set_source (cr, shine_pattern);
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/* if requested, show hovering */
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if (ARDOUR::Config->get_widget_prelight()
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&& !((visual_state() & Gtkmm2ext::Insensitive))) {
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rounded_function (cr, 0, 0, get_width(), get_height(), _corner_radius);
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cairo_set_source_rgba (cr, 0.905, 0.917, 0.925, 0.2);
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ArdourButton::set_diameter (float d)
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_diameter = (d*2) + 5.0;
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if (_diameter != 0.0) {
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_fixed_diameter = true;
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ArdourButton::set_corner_radius (float r)
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ArdourButton::on_size_request (Gtk::Requisition* req)
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CairoWidget::on_size_request (req);
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if ((_elements & Text) && !_text.empty()) {
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_layout->get_pixel_size (_text_width, _text_height);
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if (_text_width + _diameter < 75) {
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if ((_elements & Indicator) && _fixed_diameter) {
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req->width = _pixbuf->get_width() + lrint (_diameter) + xpad;
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req->height = max (_pixbuf->get_height(), (int) lrint (_diameter)) + ypad;
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req->width = _text_width + lrint (_diameter) + xpad * 2; // margin left+right * 2
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req->height = max (_text_height, (int) lrint (_diameter)) + ypad;
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req->width = _pixbuf->get_width() + xpad;
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req->height = _pixbuf->get_height() + ypad;
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req->width = _text_width + xpad;
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req->height = _text_height + ypad;
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ArdourButton::set_colors ()
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uint32_t start_color;
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if (active_state() == Gtkmm2ext::ImplicitActive && (_tweaks & ImplicitUsesSolidColor)) {
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fill_color_active = ARDOUR_UI::config()->color_by_name (string_compose ("%1: led active", get_name()));
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fill_color_active = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill end active", get_name()));
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fill_color_inactive = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill end", get_name()));
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border_color = ARDOUR_UI::config()->color_by_name ( "button border" );
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cairo_pattern_destroy (shine_pattern);
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cairo_pattern_destroy (fill_pattern);
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if (fill_pattern_active) {
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cairo_pattern_destroy (fill_pattern_active);
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fill_pattern_active = 0;
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if (_elements & Body) {
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start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill start active", get_name()));
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end_color = start_color;
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end_color = fill_color_active;
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UINT_TO_RGBA (start_color, &r, &g, &b, &a);
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shine_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, get_height());
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cairo_pattern_add_color_stop_rgba (shine_pattern, 0, 1,1,1,0.0);
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cairo_pattern_add_color_stop_rgba (shine_pattern, 0.5, 1,1,1,0.1);
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cairo_pattern_add_color_stop_rgba (shine_pattern, 0.7, 1,1,1,0.2);
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cairo_pattern_add_color_stop_rgba (shine_pattern, 1, 1,1,1,0.1);
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fill_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, get_height()-3);
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end_color = start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill end", get_name()));
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start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill start", get_name()));
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end_color = fill_color_inactive;
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UINT_TO_RGBA (start_color, &r, &g, &b, &a);
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cairo_pattern_add_color_stop_rgba (fill_pattern, 0, r/255.0,g/255.0,b/255.0, a/255.0);
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UINT_TO_RGBA (end_color, &r, &g, &b, &a);
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cairo_pattern_add_color_stop_rgba (fill_pattern, 1, r/255.0,g/255.0,b/255.0, a/255.0);
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fill_pattern_active = cairo_pattern_create_linear (0.0, 0.0, 0.0, get_height()-3);
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if (active_state() == Gtkmm2ext::ImplicitActive && (_tweaks & ImplicitUsesSolidColor)) {
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end_color = start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: led active", get_name()));
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end_color = start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill end active", get_name()));
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if (active_state() == Gtkmm2ext::ImplicitActive && (_tweaks & ImplicitUsesSolidColor)) {
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start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: led", get_name()));
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end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: led active", get_name()));
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start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill start active", get_name()));
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end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill end active", get_name()));
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UINT_TO_RGBA (start_color, &r, &g, &b, &a);
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cairo_pattern_add_color_stop_rgba (fill_pattern_active, 0, r/255.0,g/255.0,b/255.0, a/255.0);
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UINT_TO_RGBA (end_color, &r, &g, &b, &a);
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cairo_pattern_add_color_stop_rgba (fill_pattern_active, 1, r/255.0,g/255.0,b/255.0, a/255.0);
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if (led_inset_pattern) {
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cairo_pattern_destroy (led_inset_pattern);
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if (reflection_pattern) {
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cairo_pattern_destroy (reflection_pattern);
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if (_elements & Indicator) {
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led_inset_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, _diameter);
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cairo_pattern_add_color_stop_rgba (led_inset_pattern, 0, 0,0,0, 0.4);
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cairo_pattern_add_color_stop_rgba (led_inset_pattern, 1, 1,1,1, 0.7);
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reflection_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, _diameter/2-3);
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cairo_pattern_add_color_stop_rgba (reflection_pattern, 0, 1,1,1, active_state() ? 0.4 : 0.2);
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cairo_pattern_add_color_stop_rgba (reflection_pattern, 1, 1,1,1, 0.0);
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/* text and LED colors */
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if (active_state() == Gtkmm2ext::ExplicitActive || ((_tweaks & ImplicitUsesSolidColor) && active_state() == Gtkmm2ext::ImplicitActive)) {
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text_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: text active", get_name()));
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led_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: led active", get_name()));
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text_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: text", get_name()));
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led_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: led", get_name()));
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UINT_TO_RGBA (text_color, &r, &g, &b, &a);
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UINT_TO_RGBA (led_color, &r, &g, &b, &a);
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ArdourButton::set_led_left (bool yn)
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ArdourButton::on_button_press_event (GdkEventButton *ev)
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if ((_elements & Indicator) && _led_rect && _distinct_led_click) {
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if (ev->x >= _led_rect->x && ev->x < _led_rect->x + _led_rect->width &&
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ev->y >= _led_rect->y && ev->y < _led_rect->y + _led_rect->height) {
623
if (_tweaks & ShowClick) {
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set_active_state (Gtkmm2ext::ExplicitActive);
627
if (binding_proxy.button_press_handler (ev)) {
631
if (!_act_on_release) {
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_action->activate ();
642
ArdourButton::on_button_release_event (GdkEventButton *ev)
644
if ((_elements & Indicator) && _led_rect && _distinct_led_click) {
645
if (ev->x >= _led_rect->x && ev->x < _led_rect->x + _led_rect->width &&
646
ev->y >= _led_rect->y && ev->y < _led_rect->y + _led_rect->height) {
647
signal_led_clicked(); /* EMIT SIGNAL */
652
if (_tweaks & ShowClick) {
653
unset_active_state ();
658
if (_act_on_release) {
660
_action->activate ();
670
ArdourButton::set_distinct_led_click (bool yn)
672
_distinct_led_click = yn;
677
ArdourButton::color_handler ()
684
ArdourButton::on_size_allocate (Allocation& alloc)
686
CairoWidget::on_size_allocate (alloc);
692
ArdourButton::set_controllable (boost::shared_ptr<Controllable> c)
694
watch_connection.disconnect ();
695
binding_proxy.set_controllable (c);
699
ArdourButton::watch ()
701
boost::shared_ptr<Controllable> c (binding_proxy.get_controllable ());
704
warning << _("button cannot watch state of non-existing Controllable\n") << endmsg;
708
c->Changed.connect (watch_connection, invalidator(*this), boost::bind (&ArdourButton::controllable_changed, this), gui_context());
712
ArdourButton::controllable_changed ()
714
float val = binding_proxy.get_controllable()->get_value();
716
if (fabs (val) >= 0.5f) {
717
set_active_state (Gtkmm2ext::ExplicitActive);
719
unset_active_state ();
724
ArdourButton::set_related_action (RefPtr<Action> act)
726
Gtkmm2ext::Activatable::set_related_action (act);
730
action_tooltip_changed ();
732
Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (_action);
735
tact->signal_toggled().connect (sigc::mem_fun (*this, &ArdourButton::action_toggled));
738
_action->connect_property_changed ("sensitive", sigc::mem_fun (*this, &ArdourButton::action_sensitivity_changed));
739
_action->connect_property_changed ("visible", sigc::mem_fun (*this, &ArdourButton::action_visibility_changed));
740
_action->connect_property_changed ("tooltip", sigc::mem_fun (*this, &ArdourButton::action_tooltip_changed));
745
ArdourButton::action_toggled ()
747
Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (_action);
750
if (tact->get_active()) {
751
set_active_state (Gtkmm2ext::ExplicitActive);
753
unset_active_state ();
759
ArdourButton::on_style_changed (const RefPtr<Gtk::Style>&)
765
ArdourButton::setup_led_rect ()
769
if (get_width() < 75) {
775
if (_elements & Indicator) {
776
_led_rect = new cairo_rectangle_t;
778
if (_elements & Text) {
780
_led_rect->x = text_margin;
782
_led_rect->x = get_width() - text_margin - _diameter/2.0;
786
_led_rect->x = get_width()/2.0 - _diameter/2.0;
789
_led_rect->y = get_height()/2.0 - _diameter/2.0;
790
_led_rect->width = _diameter;
791
_led_rect->height = _diameter;
800
ArdourButton::set_image (const RefPtr<Gdk::Pixbuf>& img)
807
ArdourButton::set_active_state (Gtkmm2ext::ActiveState s)
809
bool changed = (_active_state != s);
810
CairoWidget::set_active_state (s);
817
ArdourButton::set_visual_state (Gtkmm2ext::VisualState s)
819
bool changed = (_visual_state != s);
820
CairoWidget::set_visual_state (s);
827
ArdourButton::on_enter_notify_event (GdkEventCrossing* ev)
831
if (ARDOUR::Config->get_widget_prelight()) {
835
return CairoWidget::on_enter_notify_event (ev);
839
ArdourButton::on_leave_notify_event (GdkEventCrossing* ev)
843
if (ARDOUR::Config->get_widget_prelight()) {
847
return CairoWidget::on_leave_notify_event (ev);
851
ArdourButton::set_tweaks (Tweaks t)
860
ArdourButton::action_sensitivity_changed ()
862
if (_action->property_sensitive ()) {
863
set_visual_state (Gtkmm2ext::VisualState (visual_state() & ~Gtkmm2ext::Insensitive));
865
set_visual_state (Gtkmm2ext::VisualState (visual_state() | Gtkmm2ext::Insensitive));
872
ArdourButton::action_visibility_changed ()
874
if (_action->property_visible ()) {
882
ArdourButton::action_tooltip_changed ()
884
string str = _action->property_tooltip().get_value();
885
ARDOUR_UI::instance()->set_tip (*this, str);
889
ArdourButton::set_rounded_corner_mask (int mask)
896
ArdourButton::set_elements (Element e)
903
ArdourButton::add_elements (Element e)
905
_elements = (ArdourButton::Element) (_elements | e);
910
ArdourButton::set_flat_buttons (bool yn)
added
removed
gtk2_ardour/ardour_button.cc
