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Diffstat (limited to 'audio/volume.app/volume.app.c.mod')
| -rw-r--r-- | audio/volume.app/volume.app.c.mod | 311 |
1 files changed, 311 insertions, 0 deletions
diff --git a/audio/volume.app/volume.app.c.mod b/audio/volume.app/volume.app.c.mod new file mode 100644 index 0000000000..9485ef8103 --- /dev/null +++ b/audio/volume.app/volume.app.c.mod @@ -0,0 +1,311 @@ +/* volume.app.c */ + +/* Volume.app -- a simple volume control + * + * Copyright (C) 2000 + * Daniel Richard G. <skunk@mit.edu>, + * timecop <timecop@japan.co.jp> + * + * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <getopt.h> +#include <signal.h> +#include <unistd.h> +#include <sys/stat.h> +#include <X11/X.h> +#include <X11/Xlib.h> + +#include "common.h" +#include "knob.h" +#include "misc.h" +#include "mixer.h" + +static int source = DEFAULT_SOURCE; +static char *mixer_device = NULL; +static bool list_sources = false; + +static Display *display; +static int display_height; + +static double prev_button1_press_time = 0.0; +static bool button1_pressed = false; +static int mouse_drag_home_x; +static int mouse_drag_home_y; + +static void +signal_catch(int sig) +{ + switch (sig) + { + case SIGUSR1: + knob_turn(-0.1); + break; + + case SIGUSR2: + knob_turn(0.1); + break; + + default: + abort(); + break; + } + + signal(sig, signal_catch); +} + +static void +button_press_event(XButtonEvent *event) +{ + double button_press_time = get_current_time(); + + switch (event->button) + { + /* Left click + */ + case 1: + knob_grab(); + if ((button_press_time - prev_button1_press_time) <= MAX_DOUBLE_CLICK_TIME) + { + /* Double-click + */ + knob_toggle_mute(); + prev_button1_press_time = 0.0; + } else + system("amixer set Master unmute"); + prev_button1_press_time = button_press_time; + button1_pressed = true; + mouse_drag_home_x = event->x; + mouse_drag_home_y = event->y; + break; + + case 3: + /* + * Right click + */ + + /* popup menu? */ + + break; + + case BUTTON_WHEEL_UP: + knob_turn(0.05); + break; + + case BUTTON_WHEEL_DOWN: + knob_turn(-0.05); + break; + + default: + break; + } +} + +static void +button_release_event(XButtonEvent *event) +{ + if (event->button == 1) + { + knob_release(); + button1_pressed = false; + } +} + +static void +mouse_motion_event(XMotionEvent *event) +{ + if (button1_pressed) + { + if ((event->x == mouse_drag_home_x) && (event->y == mouse_drag_home_y)) + { + /* This motion event was generated by an earlier + * XWarpPointer() call, so ignore it. + */ + return; + } + + if (event->y != mouse_drag_home_y) + { + int delta_y = mouse_drag_home_y - event->y; + float delta_volume = (float)delta_y / (float)display_height; + knob_turn(delta_volume); + } + + /* Keep mouse pointer on the knob. Note that this call + * will generate a bogus motion event (see above) + */ + XWarpPointer( + display, + None, + event->window, + event->x, event->y, + 0, 0, + mouse_drag_home_x, mouse_drag_home_y); + } +} + +#define HELP_TEXT \ + "Volume.app " VERSION "\n" \ + "usage:\n" \ + " -c <n> source to control [1]\n" \ + " (see -l option)\n" \ + " -d <dev> mixer device [" DEFAULT_MIXER_DEVICE "]\n" \ + " -h print this help\n" \ + " -l print list of available sound sources\n" + +void +parse_cli_options(int argc, char **argv) +{ + int opt; + + while ((opt = getopt(argc, argv, "c:hl")) != EOF) + { + switch (opt) + { + case 'c': + if (optarg != NULL) + source = strtod(optarg, NULL) - 1; + break; + + case 'd': + if (optarg != NULL) + { + if (mixer_device != NULL) + free(mixer_device); + mixer_device = strdup(optarg); + } + break; + + case 'h': + fputs(HELP_TEXT, stdout); + exit(0); + break; + + case 'l': + list_sources = true; + break; + + default: + break; + } + } +} + +int +main(int argc, char **argv) +{ + char *display_name; + XEvent event; + int idle_tick = 0; + +#ifdef DEBUG + fputs("**** Volume.app: debug build starting ****\n", stderr); +#endif + + parse_cli_options(argc, argv); + + display_name = getenv("DISPLAY"); + display = XOpenDisplay(display_name); + if (display == NULL) + { + if (display_name == NULL) + fputs("Unable to open display\n", stderr); + else + fprintf(stderr, "Unable to open display \"%s\"\n", display_name); + return EXIT_FAILURE; + } + XFlush(display); + + display_height = (float)DisplayHeight(display, DefaultScreen(display)); + + if (mixer_device == NULL) + mixer_device = strdup(DEFAULT_MIXER_DEVICE); + mixer_init(mixer_device); + free(mixer_device); + + if (list_sources) + { + mixer_print_sources(); + return EXIT_SUCCESS; + } + + if ((source < 0) || (source >= mixer_get_source_count())) + { + fprintf(stderr, "Invalid source number: %d\n", source + 1); + return EXIT_FAILURE; + } + mixer_set_source(source); + + knob_init(display); + knob_update(); + + signal(SIGUSR1, signal_catch); + signal(SIGUSR2, signal_catch); + + /* Main event loop + */ + while (true) + { + if (button1_pressed || (XPending(display) > 0)) + { + XNextEvent(display, &event); + + switch (event.type) + { + case Expose: + knob_redraw(); + break; + + case ButtonPress: + button_press_event(&event.xbutton); + idle_tick = 0; + break; + + case ButtonRelease: + button_release_event(&event.xbutton); + idle_tick = 0; + break; + + case MotionNotify: + mouse_motion_event(&event.xmotion); + idle_tick = 0; + break; + + case DestroyNotify: + XCloseDisplay(display); + goto main_event_loop_exit; + + default: + break; + } + } else { + knob_update(); + usleep(100000); + ++idle_tick; + } + } + main_event_loop_exit: + + return EXIT_SUCCESS; +} + +/* end volume.app.c */ |