// move word left
static void textbox_cursor_dec_word ( textbox *tb )
{
// Find word boundaries, with pango_Break?
gchar *n;
gchar *c = &( tb->text[tb->cursor] );
while ( ( c = g_utf8_prev_char ( c ) ) && c != tb->text ) {
gunichar uc = g_utf8_get_char ( c );
GUnicodeBreakType bt = g_unichar_break_type ( uc );
if ( ( bt == G_UNICODE_BREAK_ALPHABETIC || bt == G_UNICODE_BREAK_HEBREW_LETTER ||
bt == G_UNICODE_BREAK_NUMERIC || bt == G_UNICODE_BREAK_QUOTATION ) ) {
break;
}
}
if ( c != tb->text ) {
while ( ( n = g_utf8_prev_char ( c ) ) ) {
gunichar uc = g_utf8_get_char ( n );
GUnicodeBreakType bt = g_unichar_break_type ( uc );
if ( !( bt == G_UNICODE_BREAK_ALPHABETIC || bt == G_UNICODE_BREAK_HEBREW_LETTER ||
bt == G_UNICODE_BREAK_NUMERIC || bt == G_UNICODE_BREAK_QUOTATION ) ) {
break;
}
c = n;
if ( n == tb->text ) {
break;
}
}
}
int index = c - tb->text;
textbox_cursor ( tb, index );
}
// Move word right
static void textbox_cursor_inc_word ( textbox *tb )
{
if ( tb->text == NULL ) {
return;
}
// Find word boundaries, with pango_Break?
gchar *c = &( tb->text[tb->cursor] );
while ( ( c = g_utf8_next_char ( c ) ) ) {
gunichar uc = g_utf8_get_char ( c );
GUnicodeBreakType bt = g_unichar_break_type ( uc );
if ( ( bt == G_UNICODE_BREAK_ALPHABETIC || bt == G_UNICODE_BREAK_HEBREW_LETTER ||
bt == G_UNICODE_BREAK_NUMERIC || bt == G_UNICODE_BREAK_QUOTATION ) ) {
break;
}
}
if ( c == NULL ) {
return;
}
while ( ( c = g_utf8_next_char ( c ) ) ) {
gunichar uc = g_utf8_get_char ( c );
GUnicodeBreakType bt = g_unichar_break_type ( uc );
if ( !( bt == G_UNICODE_BREAK_ALPHABETIC || bt == G_UNICODE_BREAK_HEBREW_LETTER ||
bt == G_UNICODE_BREAK_NUMERIC || bt == G_UNICODE_BREAK_QUOTATION ) ) {
break;
}
}
int index = c - tb->text;
textbox_cursor ( tb, index );
}
gboolean textbox_append_char ( textbox *tb, const char *pad, const int pad_len )
{
if ( !( tb->flags & TB_EDITABLE ) ) {
return FALSE;
}
// Filter When alt/ctrl is pressed do not accept the character.
if ( !g_unichar_iscntrl ( g_utf8_get_char ( pad ) ) ) {
textbox_insert ( tb, tb->cursor, pad, pad_len );
textbox_cursor ( tb, tb->cursor + 1 );
return TRUE;
}
return FALSE;
}
// move left
void textbox_cursor_dec(textbox *tb)
{
textbox_cursor(tb, tb->cursor-1);
}
// move right
void textbox_cursor_inc(textbox *tb)
{
textbox_cursor(tb, tb->cursor+1);
}
// handle a keypress in edit mode
// 2 = nav
// 0 = unhandled
// 1 = handled
// -1 = handled and return pressed (finished)
int textbox_keypress ( textbox *tb, XIC xic, XEvent *ev )
{
KeySym key;
Status stat;
char pad[32];
int len;
if ( !( tb->flags & TB_EDITABLE ) ) {
return 0;
}
len = Xutf8LookupString ( xic, &ev->xkey, pad, sizeof ( pad ), &key, &stat );
pad[len] = 0;
// Left or Ctrl-b
if ( abe_test_action ( MOVE_CHAR_BACK, ev->xkey.state, key ) ) {
textbox_cursor_dec ( tb );
return 2;
}
// Right or Ctrl-F
else if ( abe_test_action ( MOVE_CHAR_FORWARD, ev->xkey.state, key ) ) {
textbox_cursor_inc ( tb );
return 2;
}
// Ctrl-U: Kill from the beginning to the end of the line.
else if ( abe_test_action ( CLEAR_LINE, ev->xkey.state, key ) ) {
textbox_text ( tb, "" );
return 1;
}
// Ctrl-A
else if ( abe_test_action ( MOVE_FRONT, ev->xkey.state, key ) ) {
textbox_cursor ( tb, 0 );
return 2;
}
// Ctrl-E
else if ( abe_test_action ( MOVE_END, ev->xkey.state, key ) ) {
textbox_cursor_end ( tb );
return 2;
}
// Ctrl-Alt-h
else if ( abe_test_action ( REMOVE_WORD_BACK, ev->xkey.state, key ) ) {
textbox_cursor_bkspc_word ( tb );
return 1;
}
// Ctrl-Alt-d
else if ( abe_test_action ( REMOVE_WORD_FORWARD, ev->xkey.state, key ) ) {
textbox_cursor_del_word ( tb );
return 1;
} // Delete or Ctrl-D
else if ( abe_test_action ( REMOVE_CHAR_FORWARD, ev->xkey.state, key ) ) {
textbox_cursor_del ( tb );
return 1;
}
// Alt-B
else if ( abe_test_action ( MOVE_WORD_BACK, ev->xkey.state, key ) ) {
textbox_cursor_dec_word ( tb );
return 2;
}
// Alt-F
else if ( abe_test_action ( MOVE_WORD_FORWARD, ev->xkey.state, key ) ) {
textbox_cursor_inc_word ( tb );
return 2;
}
// BackSpace, Ctrl-h
else if ( abe_test_action ( REMOVE_CHAR_BACK, ev->xkey.state, key ) ) {
textbox_cursor_bkspc ( tb );
return 1;
}
else if ( abe_test_action ( ACCEPT_CUSTOM, ev->xkey.state, key ) ) {
return -2;
}
else if ( abe_test_action ( ACCEPT_ENTRY_CONTINUE, ev->xkey.state, key ) ) {
return -3;
}
else if ( abe_test_action ( ACCEPT_ENTRY, ev->xkey.state, key ) ) {
return -1;
}
else if ( !iscntrl ( *pad ) ) {
textbox_insert ( tb, tb->cursor, pad );
textbox_cursor_inc ( tb );
return 1;
}
return 0;
}
// move left
void textbox_cursor_dec ( textbox *tb )
{
int index = g_utf8_prev_char ( &( tb->text[tb->cursor] ) ) - tb->text;
textbox_cursor ( tb, index );
}
// move right
void textbox_cursor_inc ( textbox *tb )
{
int index = g_utf8_next_char ( &( tb->text[tb->cursor] ) ) - tb->text;
textbox_cursor ( tb, index );
}
// handle a keypress in edit mode
// 2 = nav
// 0 = unhandled
// 1 = handled
// -1 = handled and return pressed (finished)
int textbox_keybinding ( textbox *tb, KeyBindingAction action )
{
if ( !( tb->flags & TB_EDITABLE ) ) {
return 0;
}
switch ( action )
{
// Left or Ctrl-b
case MOVE_CHAR_BACK:
textbox_cursor_dec ( tb );
return 2;
// Right or Ctrl-F
case MOVE_CHAR_FORWARD:
textbox_cursor_inc ( tb );
return 2;
// Ctrl-U: Kill from the beginning to the end of the line.
case CLEAR_LINE:
textbox_text ( tb, "" );
return 1;
// Ctrl-A
case MOVE_FRONT:
textbox_cursor ( tb, 0 );
return 2;
// Ctrl-E
case MOVE_END:
textbox_cursor_end ( tb );
return 2;
// Ctrl-Alt-h
case REMOVE_WORD_BACK:
textbox_cursor_bkspc_word ( tb );
return 1;
// Ctrl-Alt-d
case REMOVE_WORD_FORWARD:
textbox_cursor_del_word ( tb );
return 1;
case REMOVE_TO_EOL:
textbox_cursor_del_eol ( tb );
return 1;
case REMOVE_TO_SOL:
textbox_cursor_del_sol ( tb );
return 1;
// Delete or Ctrl-D
case REMOVE_CHAR_FORWARD:
textbox_cursor_del ( tb );
return 1;
// Alt-B
case MOVE_WORD_BACK:
textbox_cursor_dec_word ( tb );
return 2;
// Alt-F
case MOVE_WORD_FORWARD:
textbox_cursor_inc_word ( tb );
return 2;
// BackSpace, Ctrl-h
case REMOVE_CHAR_BACK:
textbox_cursor_bkspc ( tb );
return 1;
default:
g_return_val_if_reached ( 0 );
}
}
// handle a keypress in edit mode
// 2 = nav
// 0 = unhandled
// 1 = handled
// -1 = handled and return pressed (finished)
int textbox_keypress ( textbox *tb, XEvent *ev, char *pad, KeySym key, Status stat )
{
if ( !( tb->flags & TB_EDITABLE ) ) {
return 0;
}
if ( stat == XLookupKeySym || stat == XLookupBoth ) {
// Left or Ctrl-b
if ( abe_test_action ( MOVE_CHAR_BACK, ev->xkey.state, key ) ) {
textbox_cursor_dec ( tb );
return 2;
}
// Right or Ctrl-F
else if ( abe_test_action ( MOVE_CHAR_FORWARD, ev->xkey.state, key ) ) {
textbox_cursor_inc ( tb );
return 2;
}
// Ctrl-U: Kill from the beginning to the end of the line.
else if ( abe_test_action ( CLEAR_LINE, ev->xkey.state, key ) ) {
textbox_text ( tb, "" );
return 1;
}
// Ctrl-A
else if ( abe_test_action ( MOVE_FRONT, ev->xkey.state, key ) ) {
textbox_cursor ( tb, 0 );
return 2;
}
// Ctrl-E
else if ( abe_test_action ( MOVE_END, ev->xkey.state, key ) ) {
textbox_cursor_end ( tb );
return 2;
}
// Ctrl-Alt-h
else if ( abe_test_action ( REMOVE_WORD_BACK, ev->xkey.state, key ) ) {
textbox_cursor_bkspc_word ( tb );
return 1;
}
// Ctrl-Alt-d
else if ( abe_test_action ( REMOVE_WORD_FORWARD, ev->xkey.state, key ) ) {
textbox_cursor_del_word ( tb );
return 1;
} // Delete or Ctrl-D
else if ( abe_test_action ( REMOVE_CHAR_FORWARD, ev->xkey.state, key ) ) {
textbox_cursor_del ( tb );
return 1;
}
// Alt-B
else if ( abe_test_action ( MOVE_WORD_BACK, ev->xkey.state, key ) ) {
textbox_cursor_dec_word ( tb );
return 2;
}
// Alt-F
else if ( abe_test_action ( MOVE_WORD_FORWARD, ev->xkey.state, key ) ) {
textbox_cursor_inc_word ( tb );
return 2;
}
// BackSpace, Ctrl-h
else if ( abe_test_action ( REMOVE_CHAR_BACK, ev->xkey.state, key ) ) {
textbox_cursor_bkspc ( tb );
return 1;
}
else if ( abe_test_action ( ACCEPT_CUSTOM, ev->xkey.state, key ) ) {
return -2;
}
else if ( abe_test_action ( ACCEPT_ENTRY_CONTINUE, ev->xkey.state, key ) ) {
return -3;
}
else if ( abe_test_action ( ACCEPT_ENTRY, ev->xkey.state, key ) ) {
return -1;
}
}
if ( *pad != 0 && ( stat == XLookupBoth || stat == XLookupChars ) ) {
// Filter When alt/ctrl is pressed do not accept the character.
if ( !g_ascii_iscntrl ( *pad ) ) {
textbox_insert ( tb, tb->cursor, pad );
textbox_cursor_inc ( tb );
return 1;
}
}
return 0;
}
int main ( int argc, char **argv )
{
// Get DISPLAY
const char *display_str = getenv ( "DISPLAY" );
if ( !( display = XOpenDisplay ( display_str ) ) ) {
fprintf ( stderr, "cannot open display!\n" );
return EXIT_FAILURE;
}
TASSERT( display != NULL );
Screen *screen = DefaultScreenOfDisplay ( display );
Window root = RootWindow ( display, XScreenNumberOfScreen ( screen ) );
Window mw = XCreateSimpleWindow ( display, root, 0, 0, 200, 100,
config.menu_bw,
color_get ( display, config.menu_bc ),
color_get ( display, config.menu_bg ) );
TASSERT( mw != None );
textbox_setup ( config.menu_bg, config.menu_fg,
config.menu_hlbg, config.menu_hlfg );
textbox *box = textbox_create(mw , TB_EDITABLE|TB_AUTOWIDTH|TB_AUTOHEIGHT, 0,0, -1, -1, NORMAL, "test");
TASSERT( box != NULL );
textbox_cursor_end ( box );
TASSERT ( box->cursor == 4);
textbox_cursor ( box, -1 );
TASSERT ( box->cursor == 0 );
textbox_cursor ( box, 8 );
TASSERT ( box->cursor == 4 );
textbox_cursor ( box, 2 );
TASSERT ( box->cursor == 2 );
textbox_insert ( box, 3, "bo");
TASSERT ( strcmp(box->text, "tesbot") == 0 );
textbox_cursor_end ( box );
TASSERT ( box->cursor == 6);
TASSERT( textbox_get_width( box) > 0 );
TASSERT( textbox_get_height( box) > 0 );
TASSERT( textbox_get_width( box) >= textbox_get_font_width( box) );
TASSERT( textbox_get_height( box) >= textbox_get_font_height( box) );
TASSERT( textbox_get_estimated_char_width ( box) > 0 );
textbox_cursor_bkspc ( box );
TASSERT ( strcmp(box->text, "tesbo") == 0 );
TASSERT ( box->cursor == 5);
textbox_cursor_dec ( box );
TASSERT ( box->cursor == 4);
textbox_cursor_del ( box );
TASSERT ( strcmp(box->text, "tesb") == 0 );
textbox_cursor_dec ( box );
TASSERT ( box->cursor == 3);
textbox_cursor_inc ( box );
TASSERT ( box->cursor == 4);
textbox_cursor_inc ( box );
TASSERT ( box->cursor == 4);
// Cursor after delete section.
textbox_delete ( box, 0, 1 );
TASSERT ( strcmp(box->text, "esb") == 0 );
TASSERT ( box->cursor == 3);
// Cursor before delete.
textbox_text( box, "aap noot mies");
TASSERT ( strcmp(box->text, "aap noot mies") == 0 );
textbox_cursor( box, 3 );
TASSERT ( box->cursor == 3);
textbox_delete ( box, 3, 6 );
TASSERT ( strcmp(box->text, "aapmies") == 0 );
TASSERT ( box->cursor == 3);
// Cursor within delete
textbox_text( box, "aap noot mies");
TASSERT ( strcmp(box->text, "aap noot mies") == 0 );
textbox_cursor( box, 5 );
TASSERT ( box->cursor == 5);
textbox_delete ( box, 3, 6 );
TASSERT ( strcmp(box->text, "aapmies") == 0 );
TASSERT ( box->cursor == 3);
// Cursor after delete.
textbox_text( box, "aap noot mies");
TASSERT ( strcmp(box->text, "aap noot mies") == 0 );
textbox_cursor( box, 11 );
TASSERT ( box->cursor == 11);
textbox_delete ( box, 3, 6 );
TASSERT ( strcmp(box->text, "aapmies") == 0 );
TASSERT ( box->cursor == 5);
textbox_font ( box, HIGHLIGHT );
textbox_draw( box );
textbox_show( box );
textbox_move ( box, 12, 13);
TASSERT ( box->x == 12 );
TASSERT ( box->y == 13 );
textbox_hide( box );
textbox_free(box);
textbox_cleanup();
XDestroyWindow ( display, mw);
XCloseDisplay ( display );
}