Code cleanup
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23d7f52402
commit
05788488b7
96
btui.h
96
btui.h
@ -20,6 +20,30 @@
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#define BTUI_VERSION 2
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// Terminal escape sequences:
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#define T_WRAP "7"
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#define T_SHOW_CURSOR "25"
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#define T_MOUSE_XY "1000"
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#define T_MOUSE_CELL "1002"
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#define T_MOUSE_SGR "1006"
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#define T_ALT_SCREEN "1049"
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#define T_ON(opt) "\033[?" opt "h"
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#define T_OFF(opt) "\033[?" opt "l"
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#define TUI_ENTER T_OFF(T_SHOW_CURSOR ";" T_WRAP) T_ON(T_ALT_SCREEN ";" T_MOUSE_XY ";" T_MOUSE_CELL ";" T_MOUSE_SGR)
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#define TUI_LEAVE T_ON(T_SHOW_CURSOR ";" T_WRAP) T_OFF(T_ALT_SCREEN ";" T_MOUSE_XY ";" T_MOUSE_CELL ";" T_MOUSE_SGR) "\033[0m"
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// Maximum time in milliseconds between double clicks
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#ifndef DOUBLECLICK_THRESHOLD
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#define DOUBLECLICK_THRESHOLD 200
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#endif
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// Keyboard modifiers:
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#define MOD_BITSHIFT 9
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#define MOD_META (1 << (MOD_BITSHIFT + 0))
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#define MOD_CTRL (1 << (MOD_BITSHIFT + 1))
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#define MOD_ALT (1 << (MOD_BITSHIFT + 2))
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#define MOD_SHIFT (1 << (MOD_BITSHIFT + 3))
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typedef struct {
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FILE *in, *out;
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int width, height;
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@ -50,31 +74,6 @@ int btui_suspend(btui_t *bt);
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static btui_t current_bt;
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// Terminal escape sequences:
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#define T_WRAP "7"
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#define T_SHOW_CURSOR "25"
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#define T_MOUSE_XY "1000"
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#define T_MOUSE_CELL "1002"
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#define T_MOUSE_SGR "1006"
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#define T_ALT_SCREEN "1049"
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#define T_ON(opt) "\033[?" opt "h"
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#define T_OFF(opt) "\033[?" opt "l"
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static const char *TUI_ENTER = T_OFF(T_SHOW_CURSOR ";" T_WRAP) T_ON(T_ALT_SCREEN ";" T_MOUSE_XY ";" T_MOUSE_CELL ";" T_MOUSE_SGR);
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static const char *TUI_LEAVE = T_ON(T_SHOW_CURSOR ";" T_WRAP) T_OFF(T_ALT_SCREEN ";" T_MOUSE_XY ";" T_MOUSE_CELL ";" T_MOUSE_SGR) "\033[0m";
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// Maximum time in milliseconds between double clicks
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#ifndef DOUBLECLICK_THRESHOLD
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#define DOUBLECLICK_THRESHOLD 200
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#endif
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// Keyboard modifiers:
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#define MOD_BITSHIFT 9
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#define MOD_META (1 << (MOD_BITSHIFT + 0))
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#define MOD_CTRL (1 << (MOD_BITSHIFT + 1))
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#define MOD_ALT (1 << (MOD_BITSHIFT + 2))
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#define MOD_SHIFT (1 << (MOD_BITSHIFT + 3))
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typedef enum {
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// ASCII chars:
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KEY_CTRL_AT = 0x00, KEY_CTRL_A, KEY_CTRL_B, KEY_CTRL_C, KEY_CTRL_D,
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@ -99,6 +98,22 @@ typedef enum {
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MOUSE_WHEEL_RELEASE, MOUSE_WHEEL_PRESS,
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} btui_key_t;
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// Overlapping key codes:
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#define KEY_CTRL_BACKTICK KEY_CTRL_AT
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#define KEY_CTRL_2 KEY_CTRL_AT
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#define KEY_BACKSPACE KEY_CTRL_H
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#define KEY_TAB KEY_CTRL_I
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#define KEY_ENTER KEY_CTRL_M
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#define KEY_ESC KEY_CTRL_LSQ_BRACKET
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#define KEY_CTRL_3 KEY_CTRL_LSQ_BRACKET
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#define KEY_CTRL_4 KEY_CTRL_BACKSLASH
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#define KEY_CTRL_5 KEY_CTRL_RSQ_BRACKET
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#define KEY_CTRL_TILDE KEY_CTRL_CARET
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#define KEY_CTRL_6 KEY_CTRL_CARET
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#define KEY_CTRL_7 KEY_CTRL_UNDERSCORE
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#define KEY_CTRL_SLASH KEY_CTRL_UNDERSCORE
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#define KEY_CTRL_8 KEY_BACKSPACE2
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#define _BTUI_CLEAR_SCREEN 0
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#define _BTUI_CLEAR_ABOVE 1
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#define _BTUI_CLEAR_BELOW 2
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@ -106,6 +121,8 @@ typedef enum {
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#define _BTUI_CLEAR_LEFT 4
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#define _BTUI_CLEAR_RIGHT 5
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// Defined as both `#define` and `const int` so that these values can work in
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// switch statements and still be available to Python.
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const int BTUI_CLEAR_SCREEN = _BTUI_CLEAR_SCREEN;
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const int BTUI_CLEAR_ABOVE = _BTUI_CLEAR_ABOVE;
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const int BTUI_CLEAR_BELOW = _BTUI_CLEAR_BELOW;
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@ -113,24 +130,6 @@ const int BTUI_CLEAR_LINE = _BTUI_CLEAR_LINE;
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const int BTUI_CLEAR_LEFT = _BTUI_CLEAR_LEFT;
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const int BTUI_CLEAR_RIGHT = _BTUI_CLEAR_RIGHT;
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// Overlapping key codes:
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#define KEY_CTRL_BACKTICK 0x00 /* clash with ^@ */
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#define KEY_CTRL_2 0x00 /* clash with ^@ */
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#define KEY_BACKSPACE 0x08 /* clash with ^H */
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#define KEY_TAB 0x09 /* clash with ^I */
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#define KEY_ENTER 0x0D /* clash with ^M */
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#define KEY_ESC 0x1B /* clash with ^[ */
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#define KEY_CTRL_3 0x1B /* clash with ^[ */
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#define KEY_CTRL_4 0x1C /* clash with ^\ */
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#define KEY_CTRL_5 0x1D /* clash with ^] */
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#define KEY_CTRL_TILDE 0x1E /* clash with ^^ */
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#define KEY_CTRL_6 0x1E /* clash with ^^ */
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#define KEY_CTRL_7 0x1F /* clash with ^_ */
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#define KEY_CTRL_SLASH 0x1F /* clash with ^_ */
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#define KEY_SPACE 0x20
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#define KEY_BACKSPACE2 0x7F
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#define KEY_CTRL_8 0x7F /* clash with 'BACKSPACE2' */
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typedef struct {
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int key;
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const char *name;
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@ -138,10 +137,8 @@ typedef struct {
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static keyname_t key_names[] = {
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{KEY_SPACE, "Space"}, {KEY_BACKSPACE2, "Backspace"},
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{KEY_F1, "F1"}, {KEY_F2, "F2"}, {KEY_F3, "F3"}, {KEY_F4, "F4"}, {KEY_F5, "F5"},
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{KEY_F6, "F6"}, {KEY_F7, "F7"}, {KEY_F8, "F8"}, {KEY_F9, "F9"}, {KEY_F10, "F10"},
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{KEY_F11, "F11"}, {KEY_F12, "F12"},
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{KEY_INSERT, "Insert"}, {KEY_DELETE, "Delete"},
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{KEY_TAB, "Tab"}, {KEY_ENTER, "Enter"}, {KEY_ENTER, "Return"},
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{KEY_HOME, "Home"}, {KEY_END, "End"},
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{KEY_PGUP, "PgUp"}, {KEY_PGUP, "Page Up"},
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{KEY_PGDN, "PgDn"}, {KEY_PGDN, "Page Down"},
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@ -153,7 +150,7 @@ static keyname_t key_names[] = {
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{MOUSE_LEFT_RELEASE, "Left click"}, {MOUSE_RIGHT_RELEASE, "Right click"}, {MOUSE_MIDDLE_RELEASE, "Middle click"},
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{MOUSE_LEFT_DOUBLE, "Double left click"}, {MOUSE_RIGHT_DOUBLE, "Double right click"}, {MOUSE_MIDDLE_DOUBLE, "Double middle click"},
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{MOUSE_WHEEL_RELEASE, "Mouse wheel up"}, {MOUSE_WHEEL_PRESS, "Mouse wheel down"},
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{KEY_TAB, "Tab"}, {KEY_ENTER, "Enter"}, {KEY_ENTER, "Return"},
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{KEY_ESC, "Esc"}, {KEY_ESC, "Escape"},
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{KEY_CTRL_A, "Ctrl-a"}, {KEY_CTRL_B, "Ctrl-b"}, {KEY_CTRL_C, "Ctrl-c"},
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{KEY_CTRL_D, "Ctrl-d"}, {KEY_CTRL_E, "Ctrl-e"}, {KEY_CTRL_F, "Ctrl-f"},
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{KEY_CTRL_G, "Ctrl-g"}, {KEY_CTRL_H, "Ctrl-h"}, {KEY_CTRL_I, "Ctrl-i"},
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@ -163,7 +160,6 @@ static keyname_t key_names[] = {
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{KEY_CTRL_S, "Ctrl-s"}, {KEY_CTRL_T, "Ctrl-t"}, {KEY_CTRL_U, "Ctrl-u"},
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{KEY_CTRL_V, "Ctrl-v"}, {KEY_CTRL_W, "Ctrl-w"}, {KEY_CTRL_X, "Ctrl-x"},
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{KEY_CTRL_Y, "Ctrl-y"}, {KEY_CTRL_Z, "Ctrl-z"},
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{KEY_ESC, "Esc"}, {KEY_ESC, "Escape"},
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{KEY_CTRL_TILDE, "Ctrl-~"}, {KEY_CTRL_BACKSLASH, "Ctrl-\\"},
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{KEY_CTRL_LSQ_BRACKET, "Ctrl-]"}, {KEY_CTRL_RSQ_BRACKET, "Ctrl-]"},
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{KEY_CTRL_UNDERSCORE, "Ctrl-_"}, {KEY_CTRL_SLASH, "Ctrl-/"},
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@ -172,7 +168,9 @@ static keyname_t key_names[] = {
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{KEY_CTRL_2, "Ctrl-2"}, {KEY_CTRL_3, "Ctrl-3"}, {KEY_CTRL_4, "Ctrl-4"},
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{KEY_CTRL_5, "Ctrl-5"}, {KEY_CTRL_6, "Ctrl-6"}, {KEY_CTRL_7, "Ctrl-7"},
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{KEY_CTRL_5, "Ctrl-8"}, {KEY_CTRL_6, "Ctrl-9"},
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{':', "Colon"},
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{KEY_F1, "F1"}, {KEY_F2, "F2"}, {KEY_F3, "F3"}, {KEY_F4, "F4"}, {KEY_F5, "F5"},
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{KEY_F6, "F6"}, {KEY_F7, "F7"}, {KEY_F8, "F8"}, {KEY_F9, "F9"}, {KEY_F10, "F10"},
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{KEY_F11, "F11"}, {KEY_F12, "F12"},
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};
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static const struct termios normal_termios = {
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