/* $Id: mixer.c,v 1.2 2009/12/12 02:06:59 khorben Exp $ */ /* Copyright (c) 2009 Pierre Pronchery */ /* This file is part of DeforaOS Desktop Mixer */ /* 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, version 3 of the License. * * 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, see . */ #include #include #include #include #include #include #include #include #include "callbacks.h" #include "mixer.h" #include "../config.h" /* Mixer */ /* private */ /* types */ struct _Mixer { int fd; /* widgets */ GtkWidget * window; GtkWidget * hbox[6]; }; /* variables */ static DesktopMenu _mixer_menu_file[] = { { "_Close", G_CALLBACK(on_file_close), GTK_STOCK_CLOSE, GDK_W }, { NULL, NULL, NULL, 0 } }; static DesktopMenu _mixer_menu_view[] = { { "_All", G_CALLBACK(on_view_all), NULL, 0 }, { "_Outputs", G_CALLBACK(on_view_outputs), NULL, 0 }, { "_Inputs", G_CALLBACK(on_view_inputs), NULL, 0 }, { "_Record", G_CALLBACK(on_view_record), NULL, 0 }, { "_Monitor", G_CALLBACK(on_view_monitor), NULL, 0 }, { "_Equalization", G_CALLBACK(on_view_equalization), NULL, 0 }, { "_Modem", G_CALLBACK(on_view_modem), NULL, 0 }, { NULL, NULL, NULL, 0 } }; static DesktopMenu _mixer_menu_help[] = { { "_About", G_CALLBACK(on_help_about), GTK_STOCK_ABOUT, 0 }, { NULL, NULL, NULL, 0 } }; static DesktopMenubar _mixer_menubar[] = { { "_File", _mixer_menu_file }, { "_View", _mixer_menu_view }, { "_Help", _mixer_menu_help }, { NULL, NULL }, }; /* public */ /* mixer_new */ static GtkWidget * _new_enum(Mixer * mixer, struct audio_mixer_enum * e); static GtkWidget * _new_set(Mixer * mixer, struct audio_mixer_set * s); static GtkWidget * _new_value(Mixer * mixer, struct audio_mixer_value * v); Mixer * mixer_new(void) { Mixer * mixer; GtkWidget * scrolled; GtkWidget * vbox; GtkWidget * widget; GtkWidget * hbox; GtkWidget * control; size_t u; int i; mixer_devinfo_t md; if((mixer = malloc(sizeof(*mixer))) == NULL) return NULL; mixer->fd = open("/dev/mixer", O_RDWR); mixer->window = NULL; if(mixer->fd < 0) { mixer_delete(mixer); return NULL; } /* widgets */ mixer->window = gtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_window_set_default_size(GTK_WINDOW(mixer->window), 800, 200); gtk_window_set_title(GTK_WINDOW(mixer->window), PACKAGE); g_signal_connect(G_OBJECT(mixer->window), "delete-event", G_CALLBACK( on_closex), mixer); scrolled = gtk_scrolled_window_new(NULL, NULL); gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled), GTK_POLICY_AUTOMATIC, GTK_POLICY_NEVER); gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled), GTK_SHADOW_NONE); vbox = gtk_vbox_new(FALSE, 0); /* menubar */ widget = desktop_menubar_create(_mixer_menubar, mixer, NULL); gtk_box_pack_start(GTK_BOX(vbox), widget, FALSE, TRUE, 0); /* controls */ hbox = gtk_hbox_new(FALSE, 0); for(u = 0; u < sizeof(mixer->hbox) / sizeof(*mixer->hbox); u++) { mixer->hbox[u] = gtk_hbox_new(FALSE, 0); gtk_box_pack_start(GTK_BOX(hbox), mixer->hbox[u], TRUE, TRUE, 0); } gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(scrolled), hbox); for(i = 0;; i++) { md.index = i; if(ioctl(mixer->fd, AUDIO_MIXER_DEVINFO, &md) < 0) break; if(md.mixer_class < 0) continue; u = md.mixer_class; if(u >= sizeof(mixer->hbox) / sizeof(*mixer->hbox)) continue; hbox = mixer->hbox[md.mixer_class]; control = NULL; switch(md.type) { case AUDIO_MIXER_ENUM: control = _new_enum(mixer, &md.un.e); break; case AUDIO_MIXER_SET: control = _new_set(mixer, &md.un.s); break; case AUDIO_MIXER_VALUE: control = _new_value(mixer, &md.un.v); break; } if(control == NULL) continue; widget = gtk_vbox_new(FALSE, 0); gtk_box_pack_start(GTK_BOX(widget), gtk_label_new( md.label.name), FALSE, TRUE, 0); gtk_box_pack_start(GTK_BOX(widget), control, TRUE, TRUE, 0); gtk_box_pack_start(GTK_BOX(hbox), widget, TRUE, TRUE, 0); } gtk_box_pack_start(GTK_BOX(vbox), scrolled, TRUE, TRUE, 0); gtk_container_add(GTK_CONTAINER(mixer->window), vbox); gtk_widget_show_all(vbox); mixer_show(mixer, 0); gtk_widget_show(mixer->window); return mixer; } static GtkWidget * _new_enum(Mixer * mixer, struct audio_mixer_enum * e) { GtkWidget * vbox; int i; GtkWidget * widget; GSList * group = NULL; if(e->num_mem <= 0) return NULL; vbox = gtk_vbox_new(TRUE, 0); for(i = 0; i < e->num_mem; i++) { widget = gtk_radio_button_new_with_label(group, e->member[i].label.name); group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(widget)); gtk_box_pack_start(GTK_BOX(vbox), widget, TRUE, TRUE, 0); } return vbox; } static GtkWidget * _new_set(Mixer * mixer, struct audio_mixer_set * s) { GtkWidget * vbox; int i; GtkWidget * widget; if(s->num_mem <= 0) return NULL; vbox = gtk_vbox_new(TRUE, 0); for(i = 0; i < s->num_mem; i++) { widget = gtk_check_button_new_with_label( s->member[i].label.name); gtk_box_pack_start(GTK_BOX(vbox), widget, TRUE, TRUE, 0); } return vbox; } static GtkWidget * _new_value(Mixer * mixer, struct audio_mixer_value * v) { GtkWidget * hbox; int i; GtkWidget * widget; if(v->num_channels <= 0) return NULL; hbox = gtk_hbox_new(TRUE, 0); for(i = 0; i < v->num_channels; i++) { widget = gtk_vscale_new_with_range(0.0, 1.0, 0.02); g_signal_connect(G_OBJECT(widget), "value-changed", G_CALLBACK( on_value_changed), mixer); gtk_box_pack_start(GTK_BOX(hbox), widget, TRUE, TRUE, 0); } return hbox; } /* mixer_delete */ void mixer_delete(Mixer * mixer) { if(mixer->fd >= 0) close(mixer->fd); if(mixer->window != NULL) gtk_widget_destroy(mixer->window); free(mixer); } /* useful */ /* mixer_show */ void mixer_show(Mixer * mixer, int view) { size_t u; if(view < 0) { for(u = 0; u < sizeof(mixer->hbox) / sizeof(*mixer->hbox); u++) gtk_widget_show(mixer->hbox[u]); return; } u = view; if(u >= sizeof(mixer->hbox) / sizeof(*mixer->hbox)) return; for(u = 0; u < sizeof(mixer->hbox) / sizeof(*mixer->hbox); u++) gtk_widget_hide(mixer->hbox[u]); gtk_widget_show(mixer->hbox[view]); } /* mixer_show_all */ void mixer_show_all(Mixer * mixer) { mixer_show(mixer, -1); }