mirror of
https://github.com/Ardour/ardour.git
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472 lines
10 KiB
C++
472 lines
10 KiB
C++
/*
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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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*/
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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 "waves_button.h"
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#include "ardour_ui.h"
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#include "global_signals.h"
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#include "i18n.h"
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#define REFLECTION_HEIGHT 2
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using namespace Gdk;
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using namespace Gtk;
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using namespace Glib;
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using namespace PBD;
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using std::max;
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using std::min;
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using namespace std;
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WavesButton::WavesButton ()
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: _text_width (0)
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, _text_height (0)
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, _corner_radius (0.0)
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, _corner_mask (0xf)
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, _angle (0)
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, _act_on_release (true)
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, _hovering (false)
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, _pushed (false)
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, _left_border_width (0)
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, _top_border_width (0)
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, _right_border_width (0)
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, _bottom_border_width (0)
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{
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ColorsChanged.connect (sigc::mem_fun (*this, &WavesButton::color_handler));
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}
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WavesButton::WavesButton (const std::string& str)
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: _text_width (0)
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, _text_height (0)
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, _corner_radius (0.0)
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, _corner_mask (0xf)
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, _angle(0)
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, _act_on_release (true)
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, _hovering (false)
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, _pushed (false)
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, _left_border_width (0)
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, _top_border_width (0)
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, _right_border_width (0)
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, _bottom_border_width (0)
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{
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set_text (str);
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}
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WavesButton::~WavesButton()
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{
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}
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void
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WavesButton::set_text (const std::string& str)
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{
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_text = str;
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if (!_layout && !_text.empty()) {
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_layout = Pango::Layout::create (get_pango_context());
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}
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if (_layout) {
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_layout->set_text (str);
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}
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queue_resize ();
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}
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void
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WavesButton::set_markup (const std::string& str)
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{
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_text = str;
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if (!_layout) {
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_layout = Pango::Layout::create (get_pango_context());
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}
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_layout->set_markup (str);
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queue_resize ();
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}
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void
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WavesButton::set_angle (const double angle)
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{
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_angle = angle;
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}
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void
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WavesButton::render (cairo_t* cr)
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{
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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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break;
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case 0x2: /* upper right only */
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rounded_function = Gtkmm2ext::rounded_top_right_rectangle;
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break;
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case 0x3: /* upper only */
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rounded_function = Gtkmm2ext::rounded_top_rectangle;
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break;
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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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*/
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default:
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rounded_function = Gtkmm2ext::rounded_rectangle;
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}
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Glib::RefPtr<Gtk::Style> style = get_style();
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Gdk::Color bgcolor = style->get_bg ((get_state() == Gtk::STATE_INSENSITIVE) ? Gtk::STATE_INSENSITIVE :
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(_hovering ?
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(_pushed ?
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Gtk::STATE_ACTIVE :
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Gtk::STATE_PRELIGHT ) :
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(get_active() ?
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Gtk::STATE_ACTIVE :
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Gtk::STATE_NORMAL)));
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if ((_left_border_width != 0) ||
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(_top_border_width != 0) ||
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(_right_border_width != 0) ||
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(_bottom_border_width != 0)) {
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cairo_set_source_rgba (cr, _border_color.get_red_p(), _border_color.get_blue_p(), _border_color.get_green_p(), 1);
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rounded_function (cr, 0, 0, get_width(), get_height(), _corner_radius);
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cairo_fill (cr);
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}
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rounded_function (cr, _left_border_width, _top_border_width, get_width()-_left_border_width-_right_border_width, get_height()-_top_border_width-_bottom_border_width, _corner_radius);
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cairo_set_source_rgba (cr, bgcolor.get_red_p(), bgcolor.get_green_p(), bgcolor.get_blue_p(), 1);
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cairo_fill (cr);
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// text, if any
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if (!_text.empty()) {
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cairo_save (cr);
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cairo_rectangle (cr, 2, 1, get_width()-4, get_height()-2);
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cairo_clip (cr);
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cairo_new_path (cr);
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Gdk::Color fgcolor = style->get_fg ((get_state() == Gtk::STATE_INSENSITIVE) ? Gtk::STATE_INSENSITIVE :
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(_hovering ?
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(_pushed ?
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Gtk::STATE_ACTIVE :
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Gtk::STATE_PRELIGHT ) :
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(get_active() ?
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Gtk::STATE_ACTIVE :
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Gtk::STATE_NORMAL)));
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cairo_set_source_rgba (cr, fgcolor.get_red_p(), fgcolor.get_green_p(), fgcolor.get_blue_p(), 1);
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/* align text */
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double ww, wh;
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double xa, ya;
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ww = get_width ();
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wh = get_height ();
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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) * 0.5;
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ya = (wh - _text_height) * 0.5;
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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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cairo_restore (cr);
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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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cairo_restore (cr);
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}
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}
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void
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WavesButton::set_corner_radius (float r)
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{
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_corner_radius = fabs(r);
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set_dirty ();
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}
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void
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WavesButton::set_border_width (float left_border_width,
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float top_border_width,
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float right_border_width,
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float bottom_border_width)
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{
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_left_border_width = fabs(left_border_width);
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_top_border_width = fabs(top_border_width);
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_right_border_width = fabs(right_border_width);
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_bottom_border_width = fabs(bottom_border_width);
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set_dirty ();
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}
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void
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WavesButton::set_border_width (const char* definition)
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{
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if (definition)
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{
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float left;
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float top;
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float right;
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float bottom;
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int nread = sscanf(definition, "%f%f%f%f", &left, &top, &right, &bottom);
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if (nread > 0) {
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_left_border_width = fabs(left);
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if (nread < 2) {
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_top_border_width = _left_border_width;
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} else {
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_top_border_width = fabs(top);
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}
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if (nread < 3) {
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_right_border_width = _top_border_width;
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} else {
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_right_border_width = fabs(right);
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}
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if (nread < 4) {
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_bottom_border_width = _right_border_width;
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} else {
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_bottom_border_width = fabs(bottom);
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}
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set_dirty ();
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}
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}
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}
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void WavesButton::set_border_color(const char* color)
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{
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if (color) {
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_border_color = Gdk::Color(color);
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}
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}
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void
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WavesButton::on_size_request (Gtk::Requisition* req)
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{
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CairoWidget::on_size_request (req);
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if (!_text.empty()) {
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_layout->get_pixel_size (_text_width, _text_height);
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} else {
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_text_width = 0;
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_text_height = 0;
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}
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req->width += _corner_radius;
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}
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bool
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WavesButton::on_button_press_event (GdkEventButton *ev)
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{
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_pushed = true;
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queue_draw ();
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if (binding_proxy.button_press_handler (ev)) {
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return true;
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}
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if (!_act_on_release) {
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if (_action) {
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_action->activate ();
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return true;
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}
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}
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return false;
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}
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bool
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WavesButton::on_button_release_event (GdkEventButton *ev)
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{
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_pushed = false;
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queue_draw ();
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if (_hovering) {
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signal_clicked (this);
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if (_act_on_release) {
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if (_action) {
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_action->activate ();
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return true;
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}
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}
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}
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return false;
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}
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void
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WavesButton::color_handler ()
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{
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set_dirty ();
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}
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void
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WavesButton::on_size_allocate (Allocation& alloc)
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{
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CairoWidget::on_size_allocate (alloc);
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}
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void
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WavesButton::set_controllable (boost::shared_ptr<Controllable> c)
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{
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watch_connection.disconnect ();
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binding_proxy.set_controllable (c);
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}
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void
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WavesButton::watch ()
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{
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boost::shared_ptr<Controllable> c (binding_proxy.get_controllable ());
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if (!c) {
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warning << _("button cannot watch state of non-existing Controllable\n") << endmsg;
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return;
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}
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c->Changed.connect (watch_connection, invalidator(*this), boost::bind (&WavesButton::controllable_changed, this), gui_context());
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}
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void
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WavesButton::controllable_changed ()
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{
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float val = binding_proxy.get_controllable()->get_value();
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if (fabs (val) >= 0.5f) {
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set_active_state (Gtkmm2ext::ExplicitActive);
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} else {
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unset_active_state ();
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}
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}
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void
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WavesButton::set_related_action (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, &WavesButton::action_toggled));
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}
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_action->connect_property_changed ("sensitive", sigc::mem_fun (*this, &WavesButton::action_sensitivity_changed));
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_action->connect_property_changed ("visible", sigc::mem_fun (*this, &WavesButton::action_visibility_changed));
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_action->connect_property_changed ("tooltip", sigc::mem_fun (*this, &WavesButton::action_tooltip_changed));
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}
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}
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void
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WavesButton::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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if (tact->get_active()) {
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set_active_state (Gtkmm2ext::ExplicitActive);
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} else {
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unset_active_state ();
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}
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}
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}
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void
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WavesButton::on_style_changed (const RefPtr<Gtk::Style>&)
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{
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set_dirty();
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}
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void
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WavesButton::on_name_changed ()
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{
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set_dirty();
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}
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void
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WavesButton::set_active_state (Gtkmm2ext::ActiveState s)
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{
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CairoWidget::set_active_state (s);
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set_dirty();
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}
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void
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WavesButton::set_visual_state (Gtkmm2ext::VisualState s)
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{
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CairoWidget::set_visual_state (s);
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set_dirty();
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}
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bool
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WavesButton::on_enter_notify_event (GdkEventCrossing* ev)
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{
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_hovering = true;
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queue_draw ();
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return CairoWidget::on_enter_notify_event (ev);
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}
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bool
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WavesButton::on_leave_notify_event (GdkEventCrossing* ev)
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{
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_hovering = false;
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queue_draw ();
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return CairoWidget::on_leave_notify_event (ev);
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}
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void
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WavesButton::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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WavesButton::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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WavesButton::action_tooltip_changed ()
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{
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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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WavesButton::set_rounded_corner_mask (int mask)
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{
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_corner_mask = mask;
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queue_draw ();
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}
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