13
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livetrax/gtk2_ardour/ardour_button.cc

1071 lines
26 KiB
C++

/*
Copyright (C) 2010 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <iostream>
#include <cmath>
#include <algorithm>
#include <pangomm/layout.h>
#include "pbd/compose.h"
#include "pbd/error.h"
#include "pbd/stacktrace.h"
#include "gtkmm2ext/utils.h"
#include "gtkmm2ext/rgb_macros.h"
#include "gtkmm2ext/gui_thread.h"
#include "ardour/rc_configuration.h" // for widget prelight preference
#include "ardour_button.h"
#include "ardour_ui.h"
#include "global_signals.h"
#include "i18n.h"
#define REFLECTION_HEIGHT 2
using namespace Gdk;
using namespace Gtk;
using namespace Glib;
using namespace PBD;
using std::max;
using std::min;
using namespace std;
ArdourButton::Element ArdourButton::default_elements = ArdourButton::Element (ArdourButton::Edge|ArdourButton::Body|ArdourButton::Text);
ArdourButton::Element ArdourButton::led_default_elements = ArdourButton::Element (ArdourButton::default_elements|ArdourButton::Indicator);
ArdourButton::Element ArdourButton::just_led_default_elements = ArdourButton::Element (ArdourButton::Edge|ArdourButton::Body|ArdourButton::Indicator);
bool ArdourButton::_flat_buttons = false;
ArdourButton::ArdourButton (Element e)
: _elements (e)
, _tweaks (Tweaks (0))
, _text_width (0)
, _text_height (0)
, _diameter (11.0)
, _corner_radius (4.0)
, _corner_mask (0xf)
, _angle(0)
, _xalign(.5)
, _yalign(.5)
, bg_color (0)
, border_color (0)
, fill_start_inactive_color (0)
, fill_end_inactive_color (0)
, fill_start_active_color (0)
, fill_end_active_color (0)
, text_active_color(0)
, text_inactive_color(0)
, led_active_color(0)
, led_inactive_color(0)
, fill_pattern (0)
, fill_pattern_active (0)
, shine_pattern (0)
, led_inset_pattern (0)
, reflection_pattern (0)
, _led_rect (0)
, _act_on_release (true)
, _led_left (false)
, _fixed_diameter (true)
, _distinct_led_click (false)
, _hovering (false)
, _focused (false)
, _fixed_colors_set (false)
{
ARDOUR_UI_UTILS::ColorsChanged.connect (sigc::mem_fun (*this, &ArdourButton::color_handler));
}
ArdourButton::ArdourButton (const std::string& str, Element e)
: _elements (e)
, _tweaks (Tweaks (0))
, _text_width (0)
, _text_height (0)
, _diameter (11.0)
, _corner_radius (4.0)
, _corner_mask (0xf)
, _angle(0)
, _xalign(.5)
, _yalign(.5)
, bg_color (0)
, border_color (0)
, fill_start_inactive_color (0)
, fill_end_inactive_color (0)
, fill_start_active_color (0)
, fill_end_active_color (0)
, text_active_color(0)
, text_inactive_color(0)
, led_active_color(0)
, led_inactive_color(0)
, fill_pattern (0)
, fill_pattern_active (0)
, shine_pattern (0)
, led_inset_pattern (0)
, reflection_pattern (0)
, _led_rect (0)
, _act_on_release (true)
, _led_left (false)
, _fixed_diameter (true)
, _distinct_led_click (false)
, _hovering (false)
, _focused (false)
, _fixed_colors_set (false)
{
set_text (str);
}
ArdourButton::~ArdourButton()
{
delete _led_rect;
if (shine_pattern) {
cairo_pattern_destroy (shine_pattern);
}
if (fill_pattern) {
cairo_pattern_destroy (fill_pattern);
}
if (fill_pattern_active) {
cairo_pattern_destroy (fill_pattern_active);
}
if (led_inset_pattern) {
cairo_pattern_destroy (led_inset_pattern);
}
if (reflection_pattern) {
cairo_pattern_destroy (reflection_pattern);
}
}
void
ArdourButton::set_text (const std::string& str)
{
_text = str;
if (!_layout && !_text.empty()) {
_layout = Pango::Layout::create (get_pango_context());
}
if (_layout) {
_layout->set_text (str);
}
queue_resize ();
}
void
ArdourButton::set_markup (const std::string& str)
{
_text = str;
if (!_layout) {
_layout = Pango::Layout::create (get_pango_context());
}
_layout->set_markup (str);
queue_resize ();
}
void
ArdourButton::set_angle (const double angle)
{
_angle = angle;
}
void
ArdourButton::set_alignment (const float xa, const float ya)
{
_xalign = xa;
_yalign = ya;
}
void
ArdourButton::render (cairo_t* cr, cairo_rectangle_t *)
{
void (*rounded_function)(cairo_t*, double, double, double, double, double);
switch (_corner_mask) {
case 0x1: /* upper left only */
rounded_function = Gtkmm2ext::rounded_top_left_rectangle;
break;
case 0x2: /* upper right only */
rounded_function = Gtkmm2ext::rounded_top_right_rectangle;
break;
case 0x3: /* upper only */
rounded_function = Gtkmm2ext::rounded_top_rectangle;
break;
/* should really have functions for lower right, lower left,
lower only, but for now, we don't
*/
default:
rounded_function = Gtkmm2ext::rounded_rectangle;
}
if (!_fixed_diameter) {
_diameter = std::min (get_width(), get_height());
}
float r,g,b,a;
if ((_elements & Body)==Body) {
if (_elements & Edge) {
cairo_set_source_rgba (cr, 0, 0, 0, 1);
rounded_function(cr, 0, 0, get_width(), get_height(), _corner_radius);
cairo_fill (cr);
rounded_function (cr, 1, 1, get_width()-2, get_height()-2, _corner_radius - 1.5);
} else {
rounded_function (cr, 0, 0, get_width(), get_height(), _corner_radius);
}
if (active_state() == Gtkmm2ext::ImplicitActive) {
if (!(_tweaks & ImplicitUsesSolidColor)) {
cairo_set_source (cr, fill_pattern);
} else {
cairo_set_source (cr, fill_pattern_active);
}
cairo_fill (cr);
if (!(_tweaks & ImplicitUsesSolidColor)) {
//border
UINT_TO_RGBA (fill_end_active_color, &r, &g, &b, &a);
cairo_set_line_width (cr, 1.0);
rounded_function (cr, 2, 2, get_width()-4, get_height()-4, _corner_radius - 1.5);
cairo_set_source_rgba (cr, r/255.0, g/255.0, b/255.0, a/255.0);
cairo_stroke (cr);
}
} else if (active_state() == Gtkmm2ext::ExplicitActive || ((_elements & Indicator)==Indicator) ) {
//background color
cairo_set_source (cr, fill_pattern_active);
cairo_fill (cr);
} else {
//background color
cairo_set_source (cr, fill_pattern);
cairo_fill (cr);
}
}
if ( ((_elements & Inset)==Inset) && (active_state() != Gtkmm2ext::ExplicitActive) ) {
if ( !_flat_buttons ) {
float rheight = get_height()*0.5-REFLECTION_HEIGHT;
Gtkmm2ext::rounded_rectangle (cr, 2, 3, get_width()-4, rheight, _corner_radius-1);
cairo_set_source (cr, shine_pattern);
cairo_fill (cr);
}
if (active_state() == Gtkmm2ext::ExplicitActive) {
UINT_TO_RGBA (fill_start_active_color, &r, &g, &b, &a);
cairo_set_line_width (cr, 2.0);
rounded_function (cr, 2, 2, get_width()-4, get_height()-4, _corner_radius - 2.0);
cairo_set_source_rgba (cr, r/255.0, g/255.0, b/255.0, a/255.0);
cairo_fill (cr);
} else {
UINT_TO_RGBA (fill_start_inactive_color, &r, &g, &b, &a);
cairo_set_line_width (cr, 2.0);
rounded_function (cr, 2, 2, get_width()-4, get_height()-4, _corner_radius - 2.0);
cairo_set_source_rgba (cr, r/255.0, g/255.0, b/255.0, a/255.0);
cairo_fill (cr);
}
}
if (_pixbuf) {
double x,y;
x = (get_width() - _pixbuf->get_width())/2.0;
y = (get_height() - _pixbuf->get_height())/2.0;
//if this is a DropDown with an icon, then we need to
//move the icon left slightly to accomomodate the arrow
if (((_elements & Menu)==Menu)) {
cairo_save (cr);
cairo_translate (cr, -8,0 );
}
cairo_rectangle (cr, x, y, _pixbuf->get_width(), _pixbuf->get_height());
gdk_cairo_set_source_pixbuf (cr, _pixbuf->gobj(), x, y);
cairo_fill (cr);
//..and then return to our previous drawing position
if (((_elements & Menu)==Menu)) {
cairo_restore (cr);
}
}
/* text, if any */
int text_margin;
if (get_width() < 75) {
text_margin = 5;
} else {
text_margin = 10;
}
if ( !_pixbuf && ((_elements & Text)==Text) && !_text.empty()) {
cairo_save (cr);
cairo_rectangle (cr, 2, 1, get_width()-4, get_height()-2);
cairo_clip(cr);
cairo_new_path (cr);
cairo_set_source_rgba (cr, text_r, text_g, text_b, text_a);
if ( (_elements & Menu) == Menu) {
cairo_move_to (cr, text_margin, get_height()/2.0 - _text_height/2.0);
pango_cairo_show_layout (cr, _layout->gobj());
} else if ( (_elements & Indicator) == Indicator) {
if (_led_left) {
cairo_move_to (cr, text_margin + _diameter + 4, get_height()/2.0 - _text_height/2.0);
} else {
cairo_move_to (cr, text_margin, get_height()/2.0 - _text_height/2.0);
}
pango_cairo_show_layout (cr, _layout->gobj());
} else {
/* align text */
double ww, wh;
double xa, ya;
ww = get_width();
wh = get_height();
cairo_save (cr); // TODO retain rotataion.. adj. LED,...
cairo_rotate(cr, _angle * M_PI / 180.0);
cairo_device_to_user(cr, &ww, &wh);
xa = (ww - _text_width) * _xalign;
ya = (wh - _text_height) * _yalign;
/* quick hack for left/bottom alignment at -90deg
* TODO this should be generalized incl rotation.
* currently only 'user' of this API is meter_strip.cc
*/
if (_xalign < 0) xa = (ww * fabs(_xalign) + text_margin);
// TODO honor left/right text_margin with min/max()
cairo_move_to (cr, xa, ya);
pango_cairo_update_layout(cr, _layout->gobj());
pango_cairo_show_layout (cr, _layout->gobj());
cairo_restore (cr);
/* use old center'ed layout for follow up items - until rotation/aligment code is completed */
cairo_move_to (cr, (get_width() - _text_width)/2.0, get_height()/2.0 - _text_height/2.0);
}
cairo_restore (cr);
}
if (((_elements & Menu)==Menu)) {
cairo_save (cr);
//menu arrow
cairo_set_source_rgba (cr, 1, 1, 1, 0.4);
cairo_move_to(cr, get_width() - ((_diameter/2.0) + 6.0), get_height()/2.0 +_diameter/4);
cairo_rel_line_to(cr, -_diameter/2, -_diameter/2);
cairo_rel_line_to(cr, _diameter, 0);
cairo_close_path(cr);
cairo_set_source_rgba (cr, 1, 1, 1, 0.4);
cairo_fill_preserve(cr);
cairo_set_source_rgba (cr, 0, 0, 0, 0.8);
cairo_set_line_width(cr, 0.5);
cairo_stroke(cr);
cairo_restore (cr);
}
if (((_elements & Indicator)==Indicator)) {
/* move to the center of the indicator/led */
cairo_save (cr);
if (_elements & Text) {
if (_led_left) {
cairo_translate (cr, text_margin + (_diameter/2.0), get_height()/2.0);
} else {
cairo_translate (cr, get_width() - ((_diameter/2.0) + 4.0), get_height()/2.0);
}
} else {
cairo_translate (cr, get_width()/2.0, get_height()/2.0);
}
//inset
cairo_arc (cr, 0, 0, _diameter/2, 0, 2 * M_PI);
cairo_set_source (cr, led_inset_pattern);
cairo_fill (cr);
//black ring
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_arc (cr, 0, 0, _diameter/2-2, 0, 2 * M_PI);
cairo_fill(cr);
//led color
cairo_set_source_rgba (cr, led_r, led_g, led_b, led_a);
cairo_arc (cr, 0, 0, _diameter/2-3, 0, 2 * M_PI);
cairo_fill(cr);
cairo_restore (cr);
}
/* a partially transparent gray layer to indicate insensitivity */
if ((visual_state() & Gtkmm2ext::Insensitive)) {
rounded_function (cr, 0, 0, get_width(), get_height(), _corner_radius);
cairo_set_source_rgba (cr, 0.505, 0.517, 0.525, 0.6);
cairo_fill (cr);
}
//reflection
bool show_reflection = (active_state() == Gtkmm2ext::ExplicitActive);
show_reflection &= !_flat_buttons;
show_reflection &= !((_elements & Indicator)==Indicator);
if ( show_reflection ) {
float rheight = get_height()*0.5-REFLECTION_HEIGHT;
Gtkmm2ext::rounded_rectangle (cr, 2, get_height()*0.5-1, get_width()-4, rheight, _corner_radius-1);
cairo_set_source (cr, shine_pattern);
cairo_fill (cr);
}
/* if requested, show hovering */
if (ARDOUR::Config->get_widget_prelight()
&& !((visual_state() & Gtkmm2ext::Insensitive))) {
if (_hovering) {
rounded_function (cr, 0, 0, get_width(), get_height(), _corner_radius);
cairo_set_source_rgba (cr, 0.905, 0.917, 0.925, 0.2);
cairo_fill (cr);
}
}
if (_focused) {
rounded_function (cr, 1.5, 1.5, get_width() - 3, get_height() - 3, _corner_radius);
cairo_set_source_rgba (cr, 0.905, 0.917, 0.925, 0.8);
double dashes = 1;
cairo_set_dash (cr, &dashes, 1, 0);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT);
cairo_set_line_width (cr, 1.0);
cairo_stroke (cr);
cairo_set_dash (cr, 0, 0, 0);
}
}
void
ArdourButton::set_diameter (float d)
{
_diameter = (d*2) + 5.0;
if (_diameter != 0.0) {
_fixed_diameter = true;
}
build_patterns ();
queue_resize ();
}
void
ArdourButton::set_corner_radius (float r)
{
_corner_radius = r;
set_dirty ();
}
void
ArdourButton::on_size_request (Gtk::Requisition* req)
{
int xpad = 0;
int ypad = 6;
CairoWidget::on_size_request (req);
if ((_elements & Text) && !_text.empty()) {
_layout->get_pixel_size (_text_width, _text_height);
if (_text_width + _diameter < 75) {
xpad = 7;
} else {
xpad = 12;
}
} else {
_text_width = 0;
_text_height = 0;
}
if (_pixbuf) {
xpad = 6;
}
if ((_elements & Indicator) && _fixed_diameter) {
if (_pixbuf) {
req->width = _pixbuf->get_width() + lrint (_diameter) + xpad;
req->height = max (_pixbuf->get_height(), (int) lrint (_diameter)) + ypad;
} else {
req->width = _text_width + lrint (_diameter) + xpad * 2; // margin left+right * 2
req->height = max (_text_height, (int) lrint (_diameter)) + ypad;
}
} else {
if (_pixbuf) {
req->width = _pixbuf->get_width() + xpad;
req->height = _pixbuf->get_height() + ypad;
} else {
req->width = _text_width + xpad;
req->height = _text_height + ypad;
}
}
req->width += _corner_radius;
}
/**
* This sets the colors used for rendering based on the name of the button, and
* thus uses information from the GUI config data.
*/
void
ArdourButton::set_colors ()
{
if (_fixed_colors_set) {
return;
}
std::string name = get_name();
border_color = ARDOUR_UI::config()->color_by_name ("button border");
fill_start_active_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill start active", name));
fill_end_active_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill end active", name));
fill_start_inactive_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill start", name));
fill_end_inactive_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill end", name));
text_active_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: text active", name));
text_inactive_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: text", name));
led_active_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: led active", name));
led_inactive_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: led", name));
}
/**
* This sets the colors used for rendering based on two fixed values, rather
* than basing them on the button name, and thus information in the GUI config
* data.
*/
void ArdourButton::set_fixed_colors (const uint32_t color_active, const uint32_t color_inactive)
{
_fixed_colors_set = true;
fill_start_active_color = fill_end_active_color = color_active;
unsigned char r, g, b, a;
UINT_TO_RGBA(color_active, &r, &g, &b, &a);
double white_contrast = (max (double(r), 255.) - min (double(r), 255.)) +
(max (double(g), 255.) - min (double(g), 255.)) +
(max (double(b), 255.) - min (double(b), 255.));
double black_contrast = (max (double(r), 0.) - min (double(r), 0.)) +
(max (double(g), 0.) - min (double(g), 0.)) +
(max (double(b), 0.) - min (double(b), 0.));
text_active_color =
text_inactive_color = (white_contrast > black_contrast) ?
RGBA_TO_UINT(255, 255, 255, 255) : /* use white */
RGBA_TO_UINT( 0, 0, 0, 255); /* use black */
fill_start_inactive_color = fill_end_inactive_color = color_inactive;
/* XXX what about led colors ? */
build_patterns ();
set_name (""); /* this will trigger a "style-changed" message and then set_colors() */
}
void
ArdourButton::build_patterns ()
{
uint32_t start_color;
uint32_t end_color;
uint32_t text_color;
uint32_t led_color;
uint32_t r, g, b, a;
if (shine_pattern) {
cairo_pattern_destroy (shine_pattern);
shine_pattern = 0;
}
if (fill_pattern) {
cairo_pattern_destroy (fill_pattern);
fill_pattern = 0;
}
if (fill_pattern_active) {
cairo_pattern_destroy (fill_pattern_active);
fill_pattern_active = 0;
}
if (_elements & Body) {
if (_flat_buttons) {
end_color = start_color = fill_start_active_color;
} else {
start_color = fill_start_active_color;
end_color = fill_end_active_color;
}
UINT_TO_RGBA (start_color, &r, &g, &b, &a);
active_r = r/255.0;
active_g = g/255.0;
active_b = b/255.0;
active_a = a/255.0;
shine_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, get_height());
cairo_pattern_add_color_stop_rgba (shine_pattern, 0, 1,1,1,0.0);
cairo_pattern_add_color_stop_rgba (shine_pattern, 0.5, 1,1,1,0.1);
cairo_pattern_add_color_stop_rgba (shine_pattern, 0.7, 1,1,1,0.2);
cairo_pattern_add_color_stop_rgba (shine_pattern, 1, 1,1,1,0.1);
fill_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, get_height()-3);
if (_flat_buttons) {
end_color = start_color = fill_start_inactive_color;
} else {
start_color = fill_start_inactive_color;
end_color = fill_end_inactive_color;
}
UINT_TO_RGBA (start_color, &r, &g, &b, &a);
cairo_pattern_add_color_stop_rgba (fill_pattern, 0, r/255.0,g/255.0,b/255.0, a/255.0);
UINT_TO_RGBA (end_color, &r, &g, &b, &a);
cairo_pattern_add_color_stop_rgba (fill_pattern, 1, r/255.0,g/255.0,b/255.0, a/255.0);
fill_pattern_active = cairo_pattern_create_linear (0.0, 0.0, 0.0, get_height()-3);
if (_flat_buttons) {
if (active_state() == Gtkmm2ext::ImplicitActive && (_tweaks & ImplicitUsesSolidColor)) {
end_color = start_color = led_active_color;
} else {
end_color = start_color = fill_end_active_color;
}
} else {
if (active_state() == Gtkmm2ext::ImplicitActive && (_tweaks & ImplicitUsesSolidColor)) {
end_color = start_color = led_active_color;
} else {
start_color = fill_start_active_color;
end_color = fill_end_active_color;
}
}
UINT_TO_RGBA (start_color, &r, &g, &b, &a);
cairo_pattern_add_color_stop_rgba (fill_pattern_active, 0, r/255.0,g/255.0,b/255.0, a/255.0);
UINT_TO_RGBA (end_color, &r, &g, &b, &a);
cairo_pattern_add_color_stop_rgba (fill_pattern_active, 1, r/255.0,g/255.0,b/255.0, a/255.0);
}
if (led_inset_pattern) {
cairo_pattern_destroy (led_inset_pattern);
}
if (reflection_pattern) {
cairo_pattern_destroy (reflection_pattern);
}
if (_elements & Indicator) {
led_inset_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, _diameter);
cairo_pattern_add_color_stop_rgba (led_inset_pattern, 0, 0,0,0, 0.4);
cairo_pattern_add_color_stop_rgba (led_inset_pattern, 1, 1,1,1, 0.7);
reflection_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, _diameter/2-3);
cairo_pattern_add_color_stop_rgba (reflection_pattern, 0, 1,1,1, active_state() ? 0.4 : 0.2);
cairo_pattern_add_color_stop_rgba (reflection_pattern, 1, 1,1,1, 0.0);
}
if (active_state() == Gtkmm2ext::ExplicitActive || ((_tweaks & ImplicitUsesSolidColor) && active_state() == Gtkmm2ext::ImplicitActive)) {
text_color = text_active_color;
led_color = led_active_color;
} else {
text_color = text_inactive_color;
led_color = led_inactive_color;
}
UINT_TO_RGBA (text_color, &r, &g, &b, &a);
text_r = r/255.0;
text_g = g/255.0;
text_b = b/255.0;
text_a = a/255.0;
UINT_TO_RGBA (led_color, &r, &g, &b, &a);
led_r = r/255.0;
led_g = g/255.0;
led_b = b/255.0;
led_a = a/255.0;
set_dirty ();
}
void
ArdourButton::set_led_left (bool yn)
{
_led_left = yn;
}
bool
ArdourButton::on_button_press_event (GdkEventButton *ev)
{
if ((_elements & Indicator) && _led_rect && _distinct_led_click) {
if (ev->x >= _led_rect->x && ev->x < _led_rect->x + _led_rect->width &&
ev->y >= _led_rect->y && ev->y < _led_rect->y + _led_rect->height) {
return true;
}
}
if (_tweaks & ShowClick) {
set_active_state (Gtkmm2ext::ExplicitActive);
}
if (binding_proxy.button_press_handler (ev)) {
return true;
}
if (!_act_on_release) {
if (_action) {
_action->activate ();
return true;
}
}
return false;
}
bool
ArdourButton::on_button_release_event (GdkEventButton *ev)
{
if (_hovering && (_elements & Indicator) && _led_rect && _distinct_led_click) {
if (ev->x >= _led_rect->x && ev->x < _led_rect->x + _led_rect->width &&
ev->y >= _led_rect->y && ev->y < _led_rect->y + _led_rect->height) {
signal_led_clicked(); /* EMIT SIGNAL */
return true;
}
}
if (_tweaks & ShowClick) {
unset_active_state ();
}
if (_hovering) {
signal_clicked ();
if (_act_on_release) {
if (_action) {
_action->activate ();
return true;
}
}
}
return false;
}
void
ArdourButton::set_distinct_led_click (bool yn)
{
_distinct_led_click = yn;
setup_led_rect ();
}
void
ArdourButton::color_handler ()
{
set_colors ();
build_patterns ();
set_dirty ();
}
void
ArdourButton::on_size_allocate (Allocation& alloc)
{
CairoWidget::on_size_allocate (alloc);
setup_led_rect ();
build_patterns ();
}
void
ArdourButton::set_controllable (boost::shared_ptr<Controllable> c)
{
watch_connection.disconnect ();
binding_proxy.set_controllable (c);
}
void
ArdourButton::watch ()
{
boost::shared_ptr<Controllable> c (binding_proxy.get_controllable ());
if (!c) {
warning << _("button cannot watch state of non-existing Controllable\n") << endmsg;
return;
}
c->Changed.connect (watch_connection, invalidator(*this), boost::bind (&ArdourButton::controllable_changed, this), gui_context());
}
void
ArdourButton::controllable_changed ()
{
float val = binding_proxy.get_controllable()->get_value();
if (fabs (val) >= 0.5f) {
set_active_state (Gtkmm2ext::ExplicitActive);
} else {
unset_active_state ();
}
}
void
ArdourButton::set_related_action (RefPtr<Action> act)
{
Gtkmm2ext::Activatable::set_related_action (act);
if (_action) {
action_tooltip_changed ();
Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (_action);
if (tact) {
action_toggled ();
tact->signal_toggled().connect (sigc::mem_fun (*this, &ArdourButton::action_toggled));
}
_action->connect_property_changed ("sensitive", sigc::mem_fun (*this, &ArdourButton::action_sensitivity_changed));
_action->connect_property_changed ("visible", sigc::mem_fun (*this, &ArdourButton::action_visibility_changed));
_action->connect_property_changed ("tooltip", sigc::mem_fun (*this, &ArdourButton::action_tooltip_changed));
}
}
void
ArdourButton::action_toggled ()
{
Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (_action);
if (tact) {
if (tact->get_active()) {
set_active_state (Gtkmm2ext::ExplicitActive);
} else {
unset_active_state ();
}
}
}
void
ArdourButton::on_style_changed (const RefPtr<Gtk::Style>&)
{
set_colors ();
build_patterns ();
}
void
ArdourButton::on_name_changed ()
{
set_colors ();
build_patterns ();
}
void
ArdourButton::setup_led_rect ()
{
int text_margin;
if (get_width() < 75) {
text_margin = 3;
} else {
text_margin = 10;
}
if (_elements & Indicator) {
_led_rect = new cairo_rectangle_t;
if (_elements & Text) {
if (_led_left) {
_led_rect->x = text_margin;
} else {
_led_rect->x = get_width() - text_margin - _diameter/2.0;
}
} else {
/* centered */
_led_rect->x = get_width()/2.0 - _diameter/2.0;
}
_led_rect->y = get_height()/2.0 - _diameter/2.0;
_led_rect->width = _diameter;
_led_rect->height = _diameter;
} else {
delete _led_rect;
_led_rect = 0;
}
}
void
ArdourButton::set_image (const RefPtr<Gdk::Pixbuf>& img)
{
_pixbuf = img;
queue_draw ();
}
void
ArdourButton::set_active_state (Gtkmm2ext::ActiveState s)
{
bool changed = (_active_state != s);
CairoWidget::set_active_state (s);
if (changed) {
set_colors ();
build_patterns ();
}
}
void
ArdourButton::set_visual_state (Gtkmm2ext::VisualState s)
{
bool changed = (_visual_state != s);
CairoWidget::set_visual_state (s);
if (changed) {
set_colors ();
build_patterns ();
}
}
bool
ArdourButton::on_focus_in_event (GdkEventFocus* ev)
{
_focused = true;
queue_draw ();
return CairoWidget::on_focus_in_event (ev);
}
bool
ArdourButton::on_focus_out_event (GdkEventFocus* ev)
{
_focused = false;
queue_draw ();
return CairoWidget::on_focus_out_event (ev);
}
bool
ArdourButton::on_key_release_event (GdkEventKey *ev) {
if (_focused &&
(ev->keyval == GDK_KEY_space || ev->keyval == GDK_Return))
{
signal_clicked();
if (_action) {
_action->activate ();
}
return true;
}
return CairoWidget::on_key_release_event (ev);
}
bool
ArdourButton::on_enter_notify_event (GdkEventCrossing* ev)
{
_hovering = true;
if (ARDOUR::Config->get_widget_prelight()) {
queue_draw ();
}
return CairoWidget::on_enter_notify_event (ev);
}
bool
ArdourButton::on_leave_notify_event (GdkEventCrossing* ev)
{
_hovering = false;
if (ARDOUR::Config->get_widget_prelight()) {
queue_draw ();
}
return CairoWidget::on_leave_notify_event (ev);
}
void
ArdourButton::set_tweaks (Tweaks t)
{
if (_tweaks != t) {
_tweaks = t;
queue_draw ();
}
}
void
ArdourButton::action_sensitivity_changed ()
{
if (_action->property_sensitive ()) {
set_visual_state (Gtkmm2ext::VisualState (visual_state() & ~Gtkmm2ext::Insensitive));
} else {
set_visual_state (Gtkmm2ext::VisualState (visual_state() | Gtkmm2ext::Insensitive));
}
}
void
ArdourButton::action_visibility_changed ()
{
if (_action->property_visible ()) {
show ();
} else {
hide ();
}
}
void
ArdourButton::action_tooltip_changed ()
{
string str = _action->property_tooltip().get_value();
ARDOUR_UI::instance()->set_tip (*this, str);
}
void
ArdourButton::set_rounded_corner_mask (int mask)
{
_corner_mask = mask;
queue_draw ();
}
void
ArdourButton::set_elements (Element e)
{
_elements = e;
}
void
ArdourButton::add_elements (Element e)
{
_elements = (ArdourButton::Element) (_elements | e);
}
void
ArdourButton::set_flat_buttons (bool yn)
{
_flat_buttons = yn;
}