alsa-utils/alsamixer/bindings.h

#ifndef BINDINGS_H_INCLUDED
#define BINDINGS_H_INCLUDED

#include CURSESINC
#include <menu.h>
#include <stdint.h>

/* Commands are stored in an uint16_t and may take an unsigned numeric argument.
 * The command itself is stored in the lower 7 bits, the argument is stored
 * in the higher 9 bits.
 *
 * The value `0` is used for no (unbound) command. */

typedef uint16_t command_enum;
extern command_enum mixer_bindings[KEY_MAX];
/* No need for a 16bit type, since textbox commands don't take arguments */
extern uint8_t textbox_bindings[KEY_MAX];

#define CMD_WITH_ARG(CMD, ARG) \
	((CMD) + ((ARG) << 9))

#define CMD_GET_COMMAND(CMD) \
	((CMD) & 0x1FF)

#define CMD_GET_ARGUMENT(CMD) \
	((CMD) >> 9)

enum mixer_command {
	// `CMD % 4` should produce the channel mask
	CMD_MIXER_CONTROL_DOWN_LEFT = 1,
	CMD_MIXER_CONTROL_DOWN_RIGHT,
	CMD_MIXER_CONTROL_DOWN,
	CMD_MIXER_CONTROL_UP_LEFT = 5,
	CMD_MIXER_CONTROL_UP_RIGHT,
	CMD_MIXER_CONTROL_UP,
	CMD_MIXER_CONTROL_SET_PERCENT_LEFT = 9,
	CMD_MIXER_CONTROL_SET_PERCENT_RIGHT,
	CMD_MIXER_CONTROL_SET_PERCENT,

	// Keep those in the same order as displayed on screen
	CMD_MIXER_HELP,
	CMD_MIXER_SYSTEM_INFORMATION,
	CMD_MIXER_SELECT_CARD,
	CMD_MIXER_CLOSE,

	CMD_MIXER_TOGGLE_VIEW_MODE,
	CMD_MIXER_SET_VIEW_MODE,
	CMD_MIXER_PREVIOUS,
	CMD_MIXER_NEXT,
	CMD_MIXER_FOCUS_CONTROL,
	CMD_MIXER_TOGGLE_MUTE,
	CMD_MIXER_TOGGLE_CAPTURE,
	CMD_MIXER_BALANCE_CONTROL,
	CMD_MIXER_REFRESH,

	// Mouse
	CMD_MIXER_MOUSE_CLICK_MUTE,
	CMD_MIXER_MOUSE_CLICK_VOLUME_BAR,
	CMD_MIXER_MOUSE_CLICK_CONTROL_ENUM,
};

enum textbox_command {
	/* Since these commands are also used by the menu widget we make use of
	 * the menu_driver() request constants.
	 * KEY_MAX is substracted so the value fits in 8 bits. */
	CMD_TEXTBOX___MIN_MENU_COMMAND = MIN_MENU_COMMAND - KEY_MAX,
	CMD_TEXTBOX_TOP = REQ_FIRST_ITEM - KEY_MAX,
	CMD_TEXTBOX_BOTTOM = REQ_LAST_ITEM - KEY_MAX,
	CMD_TEXTBOX_LEFT = REQ_LEFT_ITEM - KEY_MAX,
	CMD_TEXTBOX_RIGHT = REQ_RIGHT_ITEM - KEY_MAX,
	CMD_TEXTBOX_UP = REQ_UP_ITEM - KEY_MAX,
	CMD_TEXTBOX_DOWN = REQ_DOWN_ITEM - KEY_MAX,
	CMD_TEXTBOX_PAGE_DOWN = REQ_SCR_DPAGE - KEY_MAX,
	CMD_TEXTBOX_PAGE_UP = REQ_SCR_UPAGE - KEY_MAX,
	CMD_TEXTBOX___MAX_MENU_COMMAND = MAX_MENU_COMMAND - KEY_MAX,
	CMD_TEXTBOX_PAGE_LEFT,
	CMD_TEXTBOX_PAGE_RIGHT,
	CMD_TEXTBOX_CLOSE,
};

#endif