2009-06-20 13:15:33 -04:00
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/*
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Copyright (C) 2009 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 "ardour/route_group.h"
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#include "ardour/session.h"
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#include "mixer_group_tabs.h"
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#include "mixer_strip.h"
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#include "mixer_ui.h"
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#include "utils.h"
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using namespace std;
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using namespace ARDOUR;
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MixerGroupTabs::MixerGroupTabs (Mixer_UI* m)
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: _mixer (m)
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{
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}
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void
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MixerGroupTabs::set_session (Session* s)
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{
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s->RouteMixGroupChanged.connect (mem_fun (*this, &MixerGroupTabs::set_dirty));
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}
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/** Handle a size request.
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* @param req GTK requisition
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*/
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void
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MixerGroupTabs::on_size_request (Gtk::Requisition *req)
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{
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/* Use a dummy, small width and the actual height that we want */
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req->width = 16;
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req->height = 16;
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}
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void
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MixerGroupTabs::render (cairo_t* cr)
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{
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/* background */
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cairo_set_source_rgb (cr, 0, 0, 0);
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cairo_rectangle (cr, 0, 0, _width, _height);
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cairo_fill (cr);
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int32_t curr_start = 0;
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RouteGroup* curr_group = 0;
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Gdk::Color curr_colour;
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int32_t x = 0;
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for (list<MixerStrip*>::iterator i = _mixer->strips.begin(); i != _mixer->strips.end(); ++i) {
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2009-06-21 12:58:57 -04:00
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if ((*i)->route()->is_master() || (*i)->route()->is_control() || !(*i)->marked_for_display()) {
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2009-06-20 13:15:33 -04:00
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continue;
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}
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2009-06-21 12:58:57 -04:00
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2009-06-20 13:15:33 -04:00
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RouteGroup* g = (*i)->mix_group ();
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if (g != curr_group) {
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if (curr_group) {
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draw_group (cr, curr_start, x, curr_group, curr_colour);
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}
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curr_start = x;
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curr_group = g;
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curr_colour = (*i)->color ();
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}
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x += (*i)->get_width ();
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}
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if (curr_group) {
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draw_group (cr, curr_start, x, curr_group, curr_colour);
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}
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}
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void
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MixerGroupTabs::draw_group (cairo_t* cr, int32_t x1, int32_t x2, RouteGroup* g, Gdk::Color const & colour)
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{
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double const arc_radius = _height;
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if (g->is_active()) {
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cairo_set_source_rgba (cr, colour.get_red_p (), colour.get_green_p (), colour.get_blue_p (), 1);
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} else {
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cairo_set_source_rgba (cr, 1, 1, 1, 0.2);
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}
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cairo_arc (cr, x1 + arc_radius, _height, arc_radius, M_PI, 3 * M_PI / 2);
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cairo_line_to (cr, x2 - arc_radius, 0);
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cairo_arc (cr, x2 - arc_radius, _height, arc_radius, 3 * M_PI / 2, 2 * M_PI);
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cairo_line_to (cr, x1, _height);
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cairo_fill (cr);
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pair<string, double> const f = fit_to_pixels (cr, g->name(), x2 - x1 - arc_radius * 2);
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cairo_text_extents_t ext;
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cairo_text_extents (cr, g->name().c_str(), &ext);
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cairo_set_source_rgb (cr, 1, 1, 1);
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cairo_move_to (cr, x1 + (x2 - x1 - f.second) / 2, _height - ext.height / 2);
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cairo_save (cr);
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cairo_show_text (cr, f.first.c_str());
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cairo_restore (cr);
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}
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bool
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MixerGroupTabs::on_button_press_event (GdkEventButton* ev)
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{
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int32_t x = 0;
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list<MixerStrip*>::iterator i = _mixer->strips.begin();
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while (x < ev->x && i != _mixer->strips.end()) {
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2009-06-20 14:39:23 -04:00
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if (!(*i)->route()->is_master() && !(*i)->route()->is_control() && (*i)->marked_for_display()) {
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x += (*i)->get_width ();
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}
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2009-06-20 13:15:33 -04:00
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if (x < ev->x) {
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++i;
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}
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}
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if (i == _mixer->strips.end()) {
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return false;
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}
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RouteGroup* g = (*i)->mix_group ();
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if (g) {
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g->set_active (!g->is_active (), this);
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}
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return true;
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}
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