276 lines
7.0 KiB
C++
276 lines
7.0 KiB
C++
/*
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Copyright (C) 2012 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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*/
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#include <iostream>
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#include <algorithm>
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#include <gtkmm/toggleaction.h>
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#include "pbd/compose.h"
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#include "gtkmm2ext/utils.h"
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#include "gtkmm2ext/rgb_macros.h"
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#include "ardour_ui.h"
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#include "button_joiner.h"
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using namespace Gtk;
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ButtonJoiner::ButtonJoiner (const std::string& str, Gtk::Widget& lw, Gtk::Widget& rw, bool central_joiner)
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: left (lw)
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, right (rw)
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, name (str)
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, active_fill_pattern (0)
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, inactive_fill_pattern (0)
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, central_link (central_joiner)
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{
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packer.set_homogeneous (true);
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if (central_link) {
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packer.set_spacing (20);
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}
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packer.pack_start (left);
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packer.pack_start (right);
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packer.show ();
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/* this alignment is how we position the box that holds the two widgets
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within our allocation, and how we request more space around them.
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*/
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align.add (packer);
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if (!central_link) {
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align.set (0.5, 1.0);
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align.set_padding (9, 0, 9, 9);
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} else {
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align.set (0.5, 0.5);
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align.set_padding (1, 1, 1, 1);
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}
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align.show ();
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add (align);
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add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|
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Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK);
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uint32_t border_color;
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uint32_t r, g, b, a;
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border_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: border end", name));
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UINT_TO_RGBA (border_color, &r, &g, &b, &a);
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border_r = r/255.0;
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border_g = g/255.0;
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border_b = b/255.0;
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/* child cairo widgets need the color of the inner edge as their
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* "background"
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*/
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Gdk::Color col;
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col.set_rgb_p (border_r, border_g, border_b);
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provide_background_for_cairo_widget (*this, col);
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}
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ButtonJoiner::~ButtonJoiner ()
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{
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if (active_fill_pattern) {
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cairo_pattern_destroy (active_fill_pattern);
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cairo_pattern_destroy (inactive_fill_pattern);
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}
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}
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void
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ButtonJoiner::render (cairo_t* cr, cairo_rectangle_t*)
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{
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double h = get_height();
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if (!get_active()) {
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cairo_set_source (cr, inactive_fill_pattern);
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} else {
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cairo_set_source (cr, active_fill_pattern);
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}
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if (!central_link) {
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/* outer rect */
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Gtkmm2ext::rounded_top_rectangle (cr, 0, 0, get_width(), h, 8);
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cairo_fill_preserve (cr);
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/* outer edge */
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cairo_set_line_width (cr, 1.5);
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cairo_set_source_rgb (cr, border_r, border_g, border_b);
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cairo_stroke (cr);
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/* inner "edge" */
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Gtkmm2ext::rounded_top_rectangle (cr, 8, 8, get_width() - 16, h - 8, 6);
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cairo_stroke (cr);
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} else {
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if (get_active()) {
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Gtkmm2ext::rounded_top_rectangle (cr, 0, 0, (get_width() - 20.0)/2.0 , h, 8);
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cairo_fill_preserve (cr);
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Gtkmm2ext::rounded_top_rectangle (cr, (get_width() - 20.)/2.0 + 20.0, 0.0,
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(get_width() - 20.0)/2.0 , h, 8);
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cairo_fill_preserve (cr);
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cairo_move_to (cr, get_width()/2.0 - 10.0, h/2.0);
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cairo_set_line_width (cr, 1.5);
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cairo_rel_line_to (cr, 20.0, 0.0);
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cairo_set_source (cr, active_fill_pattern);
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cairo_stroke (cr);
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} else {
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cairo_arc (cr, get_width()/2.0, h/2.0, 6.0, 0, M_PI*2.0);
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cairo_set_line_width (cr, 1.5);
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cairo_fill_preserve (cr);
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cairo_set_source_rgb (cr, border_r, border_g, border_b);
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cairo_stroke (cr);
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}
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}
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}
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void
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ButtonJoiner::on_size_allocate (Allocation& alloc)
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{
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CairoWidget::on_size_allocate (alloc);
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set_colors ();
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}
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bool
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ButtonJoiner::on_button_release_event (GdkEventButton*)
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{
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if (_action) {
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_action->activate ();
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}
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return true;
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}
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void
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ButtonJoiner::on_size_request (Gtk::Requisition* r)
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{
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CairoWidget::on_size_request (r);
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}
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void
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ButtonJoiner::set_related_action (Glib::RefPtr<Action> act)
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{
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Gtkmm2ext::Activatable::set_related_action (act);
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if (_action) {
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action_tooltip_changed ();
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Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (_action);
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if (tact) {
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action_toggled ();
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tact->signal_toggled().connect (sigc::mem_fun (*this, &ButtonJoiner::action_toggled));
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}
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_action->connect_property_changed ("sensitive", sigc::mem_fun (*this, &ButtonJoiner::action_sensitivity_changed));
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_action->connect_property_changed ("visible", sigc::mem_fun (*this, &ButtonJoiner::action_visibility_changed));
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_action->connect_property_changed ("tooltip", sigc::mem_fun (*this, &ButtonJoiner::action_tooltip_changed));
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}
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}
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void
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ButtonJoiner::action_sensitivity_changed ()
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{
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if (_action->property_sensitive ()) {
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set_visual_state (Gtkmm2ext::VisualState (visual_state() & ~Gtkmm2ext::Insensitive));
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} else {
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set_visual_state (Gtkmm2ext::VisualState (visual_state() | Gtkmm2ext::Insensitive));
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}
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}
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void
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ButtonJoiner::action_visibility_changed ()
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{
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if (_action->property_visible ()) {
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show ();
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} else {
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hide ();
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}
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}
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void
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ButtonJoiner::action_tooltip_changed ()
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{
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std::string str = _action->property_tooltip().get_value();
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ARDOUR_UI::instance()->set_tip (*this, str);
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}
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void
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ButtonJoiner::action_toggled ()
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{
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Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (_action);
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if (tact) {
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set_active (tact->get_active());
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}
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}
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void
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ButtonJoiner::set_active_state (Gtkmm2ext::ActiveState s)
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{
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bool changed = (_active_state != s);
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CairoWidget::set_active_state (s);
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if (changed) {
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set_colors ();
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}
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}
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void
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ButtonJoiner::set_colors ()
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{
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uint32_t start_color;
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uint32_t end_color;
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uint32_t r, g, b, a;
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if (active_fill_pattern) {
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cairo_pattern_destroy (active_fill_pattern);
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cairo_pattern_destroy (inactive_fill_pattern);
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}
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active_fill_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, get_height());
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inactive_fill_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, get_height());
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start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill start", name));
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end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill end", name));
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UINT_TO_RGBA (start_color, &r, &g, &b, &a);
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cairo_pattern_add_color_stop_rgba (inactive_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 (inactive_fill_pattern, 1, r/255.0,g/255.0,b/255.0, a/255.0);
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start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill start active", name));
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end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill end active", name));
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UINT_TO_RGBA (start_color, &r, &g, &b, &a);
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cairo_pattern_add_color_stop_rgba (active_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 (active_fill_pattern, 1, r/255.0,g/255.0,b/255.0, a/255.0);
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queue_draw ();
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}
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