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Diffstat (limited to 'src/ui.c')
| -rw-r--r-- | src/ui.c | 3060 |
1 files changed, 3060 insertions, 0 deletions
diff --git a/src/ui.c b/src/ui.c new file mode 100644 index 000000000..ebbf85dbb --- /dev/null +++ b/src/ui.c @@ -0,0 +1,3060 @@ +/* vi:set ts=8 sts=4 sw=4: + * + * VIM - Vi IMproved by Bram Moolenaar + * + * Do ":help uganda" in Vim to read copying and usage conditions. + * Do ":help credits" in Vim to see a list of people who contributed. + * See README.txt for an overview of the Vim source code. + */ + +/* + * ui.c: functions that handle the user interface. + * 1. Keyboard input stuff, and a bit of windowing stuff. These are called + * before the machine specific stuff (mch_*) so that we can call the GUI + * stuff instead if the GUI is running. + * 2. Clipboard stuff. + * 3. Input buffer stuff. + */ + +#include "vim.h" + + void +ui_write(s, len) + char_u *s; + int len; +{ +#ifdef FEAT_GUI + if (gui.in_use && !gui.dying && !gui.starting) + { + gui_write(s, len); + if (p_wd) + gui_wait_for_chars(p_wd); + return; + } +#endif +#ifndef NO_CONSOLE + /* Don't output anything in silent mode ("ex -s") unless 'verbose' set */ + if (!(silent_mode && p_verbose == 0)) + { +#ifdef FEAT_MBYTE + char_u *tofree = NULL; + + if (output_conv.vc_type != CONV_NONE) + { + /* Convert characters from 'encoding' to 'termencoding'. */ + tofree = string_convert(&output_conv, s, &len); + if (tofree != NULL) + s = tofree; + } +#endif + + mch_write(s, len); + +#ifdef FEAT_MBYTE + if (output_conv.vc_type != CONV_NONE) + vim_free(tofree); +#endif + } +#endif +} + +#if (defined(FEAT_GUI) && (defined(UNIX) || defined(VMS))) \ + || defined(MACOS_X_UNIX) || defined(PROTO) +/* + * When executing an external program, there may be some typed characters that + * are not consumed by it. Give them back to ui_inchar() and they are stored + * here for the next call. + */ +static char_u *ta_str = NULL; +static int ta_off; /* offset for next char to use when ta_str != NULL */ +static int ta_len; /* length of ta_str when it's not NULL*/ + + void +ui_inchar_undo(s, len) + char_u *s; + int len; +{ + char_u *new; + int newlen; + + newlen = len; + if (ta_str != NULL) + newlen += ta_len - ta_off; + new = alloc(newlen); + if (new != NULL) + { + if (ta_str != NULL) + { + mch_memmove(new, ta_str + ta_off, (size_t)(ta_len - ta_off)); + mch_memmove(new + ta_len - ta_off, s, (size_t)len); + vim_free(ta_str); + } + else + mch_memmove(new, s, (size_t)len); + ta_str = new; + ta_len = newlen; + ta_off = 0; + } +} +#endif + +/* + * ui_inchar(): low level input funcion. + * Get characters from the keyboard. + * Return the number of characters that are available. + * If "wtime" == 0 do not wait for characters. + * If "wtime" == -1 wait forever for characters. + * If "wtime" > 0 wait "wtime" milliseconds for a character. + * + * "tb_change_cnt" is the value of typebuf.tb_change_cnt if "buf" points into + * it. When typebuf.tb_change_cnt changes (e.g., when a message is received + * from a remote client) "buf" can no longer be used. "tb_change_cnt" is NULL + * otherwise. + */ + int +ui_inchar(buf, maxlen, wtime, tb_change_cnt) + char_u *buf; + int maxlen; + long wtime; /* don't use "time", MIPS cannot handle it */ + int tb_change_cnt; +{ + int retval = 0; + +#if defined(FEAT_GUI) && (defined(UNIX) || defined(VMS)) + /* + * Use the typeahead if there is any. + */ + if (ta_str != NULL) + { + if (maxlen >= ta_len - ta_off) + { + mch_memmove(buf, ta_str + ta_off, (size_t)ta_len); + vim_free(ta_str); + ta_str = NULL; + return ta_len; + } + mch_memmove(buf, ta_str + ta_off, (size_t)maxlen); + ta_off += maxlen; + return maxlen; + } +#endif + +#ifdef NO_CONSOLE_INPUT + /* Don't wait for character input when the window hasn't been opened yet. + * Do try reading, this works when redirecting stdin from a file. + * Must return something, otherwise we'll loop forever. If we run into + * this very often we probably got stuck, exit Vim. */ + if (no_console_input()) + { + static int count = 0; + +# ifndef NO_CONSOLE + retval = mch_inchar(buf, maxlen, 10L, tb_change_cnt); + if (retval > 0 || typebuf_changed(tb_change_cnt)) + return retval; +# endif + if (wtime == -1 && ++count == 1000) + read_error_exit(); + buf[0] = CAR; + return 1; + } +#endif + + /* When doing a blocking wait there is no need for CTRL-C to interrupt + * something, don't let it set got_int when it was mapped. */ + if (mapped_ctrl_c && (wtime == -1 || wtime > 100L)) + ctrl_c_interrupts = FALSE; + +#ifdef FEAT_GUI + if (gui.in_use) + { + if (gui_wait_for_chars(wtime) && !typebuf_changed(tb_change_cnt)) + retval = read_from_input_buf(buf, (long)maxlen); + } +#endif +#ifndef NO_CONSOLE +# ifdef FEAT_GUI + else +# endif + retval = mch_inchar(buf, maxlen, wtime, tb_change_cnt); +#endif + + ctrl_c_interrupts = TRUE; + + return retval; +} + +/* + * return non-zero if a character is available + */ + int +ui_char_avail() +{ +#ifdef FEAT_GUI + if (gui.in_use) + { + gui_mch_update(); + return input_available(); + } +#endif +#ifndef NO_CONSOLE +# ifdef NO_CONSOLE_INPUT + if (no_console_input()) + return 0; +# endif + return mch_char_avail(); +#else + return 0; +#endif +} + +/* + * Delay for the given number of milliseconds. If ignoreinput is FALSE then we + * cancel the delay if a key is hit. + */ + void +ui_delay(msec, ignoreinput) + long msec; + int ignoreinput; +{ +#ifdef FEAT_GUI + if (gui.in_use && !ignoreinput) + gui_wait_for_chars(msec); + else +#endif + mch_delay(msec, ignoreinput); +} + +/* + * If the machine has job control, use it to suspend the program, + * otherwise fake it by starting a new shell. + * When running the GUI iconify the window. + */ + void +ui_suspend() +{ +#ifdef FEAT_GUI + if (gui.in_use) + { + gui_mch_iconify(); + return; + } +#endif + mch_suspend(); +} + +#if !defined(UNIX) || !defined(SIGTSTP) || defined(PROTO) || defined(__BEOS__) +/* + * When the OS can't really suspend, call this function to start a shell. + * This is never called in the GUI. + */ + void +suspend_shell() +{ + if (*p_sh == NUL) + EMSG(_(e_shellempty)); + else + { + MSG_PUTS(_("new shell started\n")); + do_shell(NULL, 0); + } +} +#endif + +/* + * Try to get the current Vim shell size. Put the result in Rows and Columns. + * Use the new sizes as defaults for 'columns' and 'lines'. + * Return OK when size could be determined, FAIL otherwise. + */ + int +ui_get_shellsize() +{ + int retval; + +#ifdef FEAT_GUI + if (gui.in_use) + retval = gui_get_shellsize(); + else +#endif + retval = mch_get_shellsize(); + + check_shellsize(); + + /* adjust the default for 'lines' and 'columns' */ + if (retval == OK) + { + set_number_default("lines", Rows); + set_number_default("columns", Columns); + } + return retval; +} + +/* + * Set the size of the Vim shell according to Rows and Columns, if possible. + * The gui_set_shellsize() or mch_set_shellsize() function will try to set the + * new size. If this is not possible, it will adjust Rows and Columns. + */ +/*ARGSUSED*/ + void +ui_set_shellsize(mustset) + int mustset; /* set by the user */ +{ +#ifdef FEAT_GUI + if (gui.in_use) + gui_set_shellsize(mustset, +# ifdef WIN3264 + TRUE +# else + FALSE +# endif + ); + else +#endif + mch_set_shellsize(); +} + +/* + * Called when Rows and/or Columns changed. Adjust scroll region and mouse + * region. + */ + void +ui_new_shellsize() +{ + if (full_screen && !exiting) + { +#ifdef FEAT_GUI + if (gui.in_use) + gui_new_shellsize(); + else +#endif + mch_new_shellsize(); + } +} + + void +ui_breakcheck() +{ +#ifdef FEAT_GUI + if (gui.in_use) + gui_mch_update(); + else +#endif + mch_breakcheck(); +} + +/***************************************************************************** + * Functions for copying and pasting text between applications. + * This is always included in a GUI version, but may also be included when the + * clipboard and mouse is available to a terminal version such as xterm. + * Note: there are some more functions in ops.c that handle selection stuff. + * + * Also note that the majority of functions here deal with the X 'primary' + * (visible - for Visual mode use) selection, and only that. There are no + * versions of these for the 'clipboard' selection, as Visual mode has no use + * for them. + */ + +#if defined(FEAT_CLIPBOARD) || defined(PROTO) + +/* + * Selection stuff using Visual mode, for cutting and pasting text to other + * windows. + */ + +/* + * Call this to initialise the clipboard. Pass it FALSE if the clipboard code + * is included, but the clipboard can not be used, or TRUE if the clipboard can + * be used. Eg unix may call this with FALSE, then call it again with TRUE if + * the GUI starts. + */ + void +clip_init(can_use) + int can_use; +{ + VimClipboard *cb; + + cb = &clip_star; + for (;;) + { + cb->available = can_use; + cb->owned = FALSE; + cb->start.lnum = 0; + cb->start.col = 0; + cb->end.lnum = 0; + cb->end.col = 0; + cb->state = SELECT_CLEARED; + + if (cb == &clip_plus) + break; + cb = &clip_plus; + } +} + +/* + * Check whether the VIsual area has changed, and if so try to become the owner + * of the selection, and free any old converted selection we may still have + * lying around. If the VIsual mode has ended, make a copy of what was + * selected so we can still give it to others. Will probably have to make sure + * this is called whenever VIsual mode is ended. + */ + void +clip_update_selection() +{ + pos_T start, end; + + /* If visual mode is only due to a redo command ("."), then ignore it */ + if (!redo_VIsual_busy && VIsual_active && (State & NORMAL)) + { + if (lt(VIsual, curwin->w_cursor)) + { + start = VIsual; + end = curwin->w_cursor; +#ifdef FEAT_MBYTE + if (has_mbyte) + end.col += (*mb_ptr2len_check)(ml_get_cursor()) - 1; +#endif + } + else + { + start = curwin->w_cursor; + end = VIsual; + } + if (!equalpos(clip_star.start, start) + || !equalpos(clip_star.end, end) + || clip_star.vmode != VIsual_mode) + { + clip_clear_selection(); + clip_star.start = start; + clip_star.end = end; + clip_star.vmode = VIsual_mode; + clip_free_selection(&clip_star); + clip_own_selection(&clip_star); + clip_gen_set_selection(&clip_star); + } + } +} + + void +clip_own_selection(cbd) + VimClipboard *cbd; +{ + /* + * Also want to check somehow that we are reading from the keyboard rather + * than a mapping etc. + */ + if (!cbd->owned && cbd->available) + { + cbd->owned = (clip_gen_own_selection(cbd) == OK); +#ifdef FEAT_X11 + if (cbd == &clip_star) + { + /* May have to show a different kind of highlighting for the selected + * area. There is no specific redraw command for this, just redraw + * all windows on the current buffer. */ + if (cbd->owned + && get_real_state() == VISUAL + && clip_isautosel() + && hl_attr(HLF_V) != hl_attr(HLF_VNC)) + redraw_curbuf_later(INVERTED_ALL); + } +#endif + } +} + + void +clip_lose_selection(cbd) + VimClipboard *cbd; +{ +#ifdef FEAT_X11 + int was_owned = cbd->owned; +#endif + int visual_selection = (cbd == &clip_star); + + clip_free_selection(cbd); + cbd->owned = FALSE; + if (visual_selection) + clip_clear_selection(); + clip_gen_lose_selection(cbd); +#ifdef FEAT_X11 + if (visual_selection) + { + /* May have to show a different kind of highlighting for the selected + * area. There is no specific redraw command for this, just redraw all + * windows on the current buffer. */ + if (was_owned + && get_real_state() == VISUAL + && clip_isautosel() + && hl_attr(HLF_V) != hl_attr(HLF_VNC)) + { + update_curbuf(INVERTED_ALL); + setcursor(); + cursor_on(); + out_flush(); +# ifdef FEAT_GUI + if (gui.in_use) + gui_update_cursor(TRUE, FALSE); +# endif + } + } +#endif +} + + void +clip_copy_selection() +{ + if (VIsual_active && (State & NORMAL) && clip_star.available) + { + if (clip_isautosel()) + clip_update_selection(); + clip_free_selection(&clip_star); + clip_own_selection(&clip_star); + if (clip_star.owned) + clip_get_selection(&clip_star); + clip_gen_set_selection(&clip_star); + } +} + +/* + * Called when Visual mode is ended: update the selection. + */ + void +clip_auto_select() +{ + if (clip_isautosel()) + clip_copy_selection(); +} + +/* + * Return TRUE if automatic selection of Visual area is desired. + */ + int +clip_isautosel() +{ + return ( +#ifdef FEAT_GUI + gui.in_use ? (vim_strchr(p_go, GO_ASEL) != NULL) : +#endif + clip_autoselect); +} + + +/* + * Stuff for general mouse selection, without using Visual mode. + */ + +static int clip_compare_pos __ARGS((int row1, int col1, int row2, int col2)); +static void clip_invert_area __ARGS((int, int, int, int, int how)); +static void clip_invert_rectangle __ARGS((int row, int col, int height, int width, int invert)); +static void clip_get_word_boundaries __ARGS((VimClipboard *, int, int)); +static int clip_get_line_end __ARGS((int)); +static void clip_update_modeless_selection __ARGS((VimClipboard *, int, int, + int, int)); + +/* flags for clip_invert_area() */ +#define CLIP_CLEAR 1 +#define CLIP_SET 2 +#define CLIP_TOGGLE 3 + +/* + * Start, continue or end a modeless selection. Used when editing the + * command-line and in the cmdline window. + */ + void +clip_modeless(button, is_click, is_drag) + int button; + int is_click; + int is_drag; +{ + int repeat; + + repeat = ((clip_star.mode == SELECT_MODE_CHAR + || clip_star.mode == SELECT_MODE_LINE) + && (mod_mask & MOD_MASK_2CLICK)) + || (clip_star.mode == SELECT_MODE_WORD + && (mod_mask & MOD_MASK_3CLICK)); + if (is_click && button == MOUSE_RIGHT) + { + /* Right mouse button: If there was no selection, start one. + * Otherwise extend the existing selection. */ + if (clip_star.state == SELECT_CLEARED) + clip_start_selection(mouse_col, mouse_row, FALSE); + clip_process_selection(button, mouse_col, mouse_row, repeat); + } + else if (is_click) + clip_start_selection(mouse_col, mouse_row, repeat); + else if (is_drag) + { + /* Don't try extending a selection if there isn't one. Happens when + * button-down is in the cmdline and them moving mouse upwards. */ + if (clip_star.state != SELECT_CLEARED) + clip_process_selection(button, mouse_col, mouse_row, repeat); + } + else /* release */ + clip_process_selection(MOUSE_RELEASE, mouse_col, mouse_row, FALSE); +} + +/* + * Compare two screen positions ala strcmp() + */ + static int +clip_compare_pos(row1, col1, row2, col2) + int row1; + int col1; + int row2; + int col2; +{ + if (row1 > row2) return(1); + if (row1 < row2) return(-1); + if (col1 > col2) return(1); + if (col1 < col2) return(-1); + return(0); +} + +/* + * Start the selection + */ + void +clip_start_selection(col, row, repeated_click) + int col; + int row; + int repeated_click; +{ + VimClipboard *cb = &clip_star; + + if (cb->state == SELECT_DONE) + clip_clear_selection(); + + row = check_row(row); + col = check_col(col); +#ifdef FEAT_MBYTE + col = mb_fix_col(col, row); +#endif + + cb->start.lnum = row; + cb->start.col = col; + cb->end = cb->start; + cb->origin_row = (short_u)cb->start.lnum; + cb->state = SELECT_IN_PROGRESS; + + if (repeated_click) + { + if (++cb->mode > SELECT_MODE_LINE) + cb->mode = SELECT_MODE_CHAR; + } + else + cb->mode = SELECT_MODE_CHAR; + +#ifdef FEAT_GUI + /* clear the cursor until the selection is made */ + if (gui.in_use) + gui_undraw_cursor(); +#endif + + switch (cb->mode) + { + case SELECT_MODE_CHAR: + cb->origin_start_col = cb->start.col; + cb->word_end_col = clip_get_line_end((int)cb->start.lnum); + break; + + case SELECT_MODE_WORD: + clip_get_word_boundaries(cb, (int)cb->start.lnum, cb->start.col); + cb->origin_start_col = cb->word_start_col; + cb->origin_end_col = cb->word_end_col; + + clip_invert_area((int)cb->start.lnum, cb->word_start_col, + (int)cb->end.lnum, cb->word_end_col, CLIP_SET); + cb->start.col = cb->word_start_col; + cb->end.col = cb->word_end_col; + break; + + case SELECT_MODE_LINE: + clip_invert_area((int)cb->start.lnum, 0, (int)cb->start.lnum, + (int)Columns, CLIP_SET); + cb->start.col = 0; + cb->end.col = Columns; + break; + } + + cb->prev = cb->start; + +#ifdef DEBUG_SELECTION + printf("Selection started at (%u,%u)\n", cb->start.lnum, cb->start.col); +#endif +} + +/* + * Continue processing the selection + */ + void +clip_process_selection(button, col, row, repeated_click) + int button; + int col; + int row; + int_u repeated_click; +{ + VimClipboard *cb = &clip_star; + int diff; + int slen = 1; /* cursor shape width */ + + if (button == MOUSE_RELEASE) + { + /* Check to make sure we have something selected */ + if (cb->start.lnum == cb->end.lnum && cb->start.col == cb->end.col) + { +#ifdef FEAT_GUI + if (gui.in_use) + gui_update_cursor(FALSE, FALSE); +#endif + cb->state = SELECT_CLEARED; + return; + } + +#ifdef DEBUG_SELECTION + printf("Selection ended: (%u,%u) to (%u,%u)\n", cb->start.lnum, + cb->start.col, cb->end.lnum, cb->end.col); +#endif + if (clip_isautosel() + || ( +#ifdef FEAT_GUI + gui.in_use ? (vim_strchr(p_go, GO_ASELML) != NULL) : +#endif + clip_autoselectml)) + clip_copy_modeless_selection(FALSE); +#ifdef FEAT_GUI + if (gui.in_use) + gui_update_cursor(FALSE, FALSE); +#endif + + cb->state = SELECT_DONE; + return; + } + + row = check_row(row); + col = check_col(col); +#ifdef FEAT_MBYTE + col = mb_fix_col(col, row); +#endif + + if (col == (int)cb->prev.col && row == cb->prev.lnum && !repeated_click) + return; + + /* + * When extending the selection with the right mouse button, swap the + * start and end if the position is before half the selection + */ + if (cb->state == SELECT_DONE && button == MOUSE_RIGHT) + { + /* + * If the click is before the start, or the click is inside the + * selection and the start is the closest side, set the origin to the + * end of the selection. + */ + if (clip_compare_pos(row, col, (int)cb->start.lnum, cb->start.col) < 0 + || (clip_compare_pos(row, col, + (int)cb->end.lnum, cb->end.col) < 0 + && (((cb->start.lnum == cb->end.lnum + && cb->end.col - col > col - cb->start.col)) + || ((diff = (cb->end.lnum - row) - + (row - cb->start.lnum)) > 0 + || (diff == 0 && col < (int)(cb->start.col + + cb->end.col) / 2))))) + { + cb->origin_row = (short_u)cb->end.lnum; + cb->origin_start_col = cb->end.col - 1; + cb->origin_end_col = cb->end.col; + } + else + { + cb->origin_row = (short_u)cb->start.lnum; + cb->origin_start_col = cb->start.col; + cb->origin_end_col = cb->start.col; + } + if (cb->mode == SELECT_MODE_WORD && !repeated_click) + cb->mode = SELECT_MODE_CHAR; + } + + /* set state, for when using the right mouse button */ + cb->state = SELECT_IN_PROGRESS; + +#ifdef DEBUG_SELECTION + printf("Selection extending to (%d,%d)\n", row, col); +#endif + + if (repeated_click && ++cb->mode > SELECT_MODE_LINE) + cb->mode = SELECT_MODE_CHAR; + + switch (cb->mode) + { + case SELECT_MODE_CHAR: + /* If we're on a different line, find where the line ends */ + if (row != cb->prev.lnum) + cb->word_end_col = clip_get_line_end(row); + + /* See if we are before or after the origin of the selection */ + if (clip_compare_pos(row, col, cb->origin_row, + cb->origin_start_col) >= 0) + { + if (col >= (int)cb->word_end_col) + clip_update_modeless_selection(cb, cb->origin_row, + cb->origin_start_col, row, (int)Columns); + else + { +#ifdef FEAT_MBYTE + if (has_mbyte && mb_lefthalve(row, col)) + slen = 2; +#endif + clip_update_modeless_selection(cb, cb->origin_row, + cb->origin_start_col, row, col + slen); + } + } + else + { +#ifdef FEAT_MBYTE + if (has_mbyte + && mb_lefthalve(cb->origin_row, cb->origin_start_col)) + slen = 2; +#endif + if (col >= (int)cb->word_end_col) + clip_update_modeless_selection(cb, row, cb->word_end_col, + cb->origin_row, cb->origin_start_col + slen); + else + clip_update_modeless_selection(cb, row, col, + cb->origin_row, cb->origin_start_col + slen); + } + break; + + case SELECT_MODE_WORD: + /* If we are still within the same word, do nothing */ + if (row == cb->prev.lnum && col >= (int)cb->word_start_col + && col < (int)cb->word_end_col && !repeated_click) + return; + + /* Get new word boundaries */ + clip_get_word_boundaries(cb, row, col); + + /* Handle being after the origin point of selection */ + if (clip_compare_pos(row, col, cb->origin_row, + cb->origin_start_col) >= 0) + clip_update_modeless_selection(cb, cb->origin_row, + cb->origin_start_col, row, cb->word_end_col); + else + clip_update_modeless_selection(cb, row, cb->word_start_col, + cb->origin_row, cb->origin_end_col); + break; + + case SELECT_MODE_LINE: + if (row == cb->prev.lnum && !repeated_click) + return; + + if (clip_compare_pos(row, col, cb->origin_row, + cb->origin_start_col) >= 0) + clip_update_modeless_selection(cb, cb->origin_row, 0, row, + (int)Columns); + else + clip_update_modeless_selection(cb, row, 0, cb->origin_row, + (int)Columns); + break; + } + + cb->prev.lnum = row; + cb->prev.col = col; + +#ifdef DEBUG_SELECTION + printf("Selection is: (%u,%u) to (%u,%u)\n", cb->start.lnum, + cb->start.col, cb->end.lnum, cb->end.col); +#endif +} + +#if 0 /* not used */ +/* + * Called after an Expose event to redraw the selection + */ + void +clip_redraw_selection(x, y, w, h) + int x; + int y; + int w; + int h; +{ + VimClipboard *cb = &clip_star; + int row1, col1, row2, col2; + int row; + int start; + int end; + + if (cb->state == SELECT_CLEARED) + return; + + row1 = check_row(Y_2_ROW(y)); + col1 = check_col(X_2_COL(x)); + row2 = check_row(Y_2_ROW(y + h - 1)); + col2 = check_col(X_2_COL(x + w - 1)); + + /* Limit the rows that need to be re-drawn */ + if (cb->start.lnum > row1) + row1 = cb->start.lnum; + if (cb->end.lnum < row2) + row2 = cb->end.lnum; + + /* Look at each row that might need to be re-drawn */ + for (row = row1; row <= row2; row++) + { + /* For the first selection row, use the starting selection column */ + if (row == cb->start.lnum) + start = cb->start.col; + else + start = 0; + + /* For the last selection row, use the ending selection column */ + if (row == cb->end.lnum) + end = cb->end.col; + else + end = Columns; + + if (col1 > start) + start = col1; + + if (col2 < end) + end = col2 + 1; + + if (end > start) + gui_mch_invert_rectangle(row, start, 1, end - start); + } +} +#endif + +# if defined(FEAT_GUI) || defined(PROTO) +/* + * Redraw part of the selection if character at "row,col" is inside of it. + * Only used for the GUI. + */ + void +clip_may_redraw_selection(row, col, len) + int row, col; + int len; +{ + int start = col; + int end = col + len; + + if (clip_star.state != SELECT_CLEARED + && row >= clip_star.start.lnum + && row <= clip_star.end.lnum) + { + if (row == clip_star.start.lnum && start < (int)clip_star.start.col) + start = clip_star.start.col; + if (row == clip_star.end.lnum && end > (int)clip_star.end.col) + end = clip_star.end.col; + if (end > start) + clip_invert_area(row, start, row, end, 0); + } +} +# endif + +/* + * Called from outside to clear selected region from the display + */ + void +clip_clear_selection() +{ + VimClipboard *cb = &clip_star; + + if (cb->state == SELECT_CLEARED) + return; + + clip_invert_area((int)cb->start.lnum, cb->start.col, (int)cb->end.lnum, + cb->end.col, CLIP_CLEAR); + cb->state = SELECT_CLEARED; +} + +/* + * Clear the selection if any lines from "row1" to "row2" are inside of it. + */ + void +clip_may_clear_selection(row1, row2) + int row1, row2; +{ + if (clip_star.state == SELECT_DONE + && row2 >= clip_star.start.lnum + && row1 <= clip_star.end.lnum) + clip_clear_selection(); +} + +/* + * Called before the screen is scrolled up or down. Adjusts the line numbers + * of the selection. Call with big number when clearing the screen. + */ + void +clip_scroll_selection(rows) + int rows; /* negative for scroll down */ +{ + int lnum; + + if (clip_star.state == SELECT_CLEARED) + return; + + lnum = clip_star.start.lnum - rows; + if (lnum <= 0) + clip_star.start.lnum = 0; + else if (lnum >= screen_Rows) /* scrolled off of the screen */ + clip_star.state = SELECT_CLEARED; + else + clip_star.start.lnum = lnum; + + lnum = clip_star.end.lnum - rows; + if (lnum < 0) /* scrolled off of the screen */ + clip_star.state = SELECT_CLEARED; + else if (lnum >= screen_Rows) + clip_star.end.lnum = screen_Rows - 1; + else + clip_star.end.lnum = lnum; +} + +/* + * Invert a region of the display between a starting and ending row and column + * Values for "how": + * CLIP_CLEAR: undo inversion + * CLIP_SET: set inversion + * CLIP_TOGGLE: set inversion if pos1 < pos2, undo inversion otherwise. + * 0: invert (GUI only). + */ + static void +clip_invert_area(row1, col1, row2, col2, how) + int row1; + int col1; + int row2; + int col2; + int how; +{ + int invert = FALSE; + + if (how == CLIP_SET) + invert = TRUE; + + /* Swap the from and to positions so the from is always before */ + if (clip_compare_pos(row1, col1, row2, col2) > 0) + { + int tmp_row, tmp_col; + + tmp_row = row1; + tmp_col = col1; + row1 = row2; + col1 = col2; + row2 = tmp_row; + col2 = tmp_col; + } + else if (how == CLIP_TOGGLE) + invert = TRUE; + + /* If all on the same line, do it the easy way */ + if (row1 == row2) + { + clip_invert_rectangle(row1, col1, 1, col2 - col1, invert); + } + else + { + /* Handle a piece of the first line */ + if (col1 > 0) + { + clip_invert_rectangle(row1, col1, 1, (int)Columns - col1, invert); + row1++; + } + + /* Handle a piece of the last line */ + if (col2 < Columns - 1) + { + clip_invert_rectangle(row2, 0, 1, col2, invert); + row2--; + } + + /* Handle the rectangle thats left */ + if (row2 >= row1) + clip_invert_rectangle(row1, 0, row2 - row1 + 1, (int)Columns, + invert); + } +} + +/* + * Invert or un-invert a rectangle of the screen. + * "invert" is true if the result is inverted. + */ + static void +clip_invert_rectangle(row, col, height, width, invert) + int row; + int col; + int height; + int width; + int invert; +{ +#ifdef FEAT_GUI + if (gui.in_use) + gui_mch_invert_rectangle(row, col, height, width); + else +#endif + screen_draw_rectangle(row, col, height, width, invert); +} + +/* + * Copy the currently selected area into the '*' register so it will be + * available for pasting. + * When "both" is TRUE also copy to the '+' register. + */ +/*ARGSUSED*/ + void +clip_copy_modeless_selection(both) + int both; +{ + char_u *buffer; + char_u *bufp; + int row; + int start_col; + int end_col; + int line_end_col; + int add_newline_flag = FALSE; + int len; +#ifdef FEAT_MBYTE + char_u *p; + int i; +#endif + int row1 = clip_star.start.lnum; + int col1 = clip_star.start.col; + int row2 = clip_star.end.lnum; + int col2 = clip_star.end.col; + + /* + * Make sure row1 <= row2, and if row1 == row2 that col1 <= col2. + */ + if (row1 > row2) + { + row = row1; row1 = row2; row2 = row; + row = col1; col1 = col2; col2 = row; + } + else if (row1 == row2 && col1 > col2) + { + row = col1; col1 = col2; col2 = row; + } +#ifdef FEAT_MBYTE + /* correct starting point for being on right halve of double-wide char */ + p = ScreenLines + LineOffset[row1]; + if (enc_dbcs != 0) + col1 -= (*mb_head_off)(p, p + col1); + else if (enc_utf8 && p[col1] == 0) + --col1; +#endif + + /* Create a temporary buffer for storing the text */ + len = (row2 - row1 + 1) * Columns + 1; +#ifdef FEAT_MBYTE + if (enc_dbcs != 0) + len *= 2; /* max. 2 bytes per display cell */ + else if (enc_utf8) + len *= 9; /* max. 3 bytes per display cell + 2 composing chars */ +#endif + buffer = lalloc((long_u)len, TRUE); + if (buffer == NULL) /* out of memory */ + return; + + /* Process each row in the selection */ + for (bufp = buffer, row = row1; row <= row2; row++) + { + if (row == row1) + start_col = col1; + else + start_col = 0; + + if (row == row2) + end_col = col2; + else + end_col = Columns; + + line_end_col = clip_get_line_end(row); + + /* See if we need to nuke some trailing whitespace */ + if (end_col >= Columns && (row < row2 || end_col > line_end_col)) + { + /* Get rid of trailing whitespace */ + end_col = line_end_col; + if (end_col < start_col) + end_col = start_col; + + /* If the last line extended to the end, add an extra newline */ + if (row == row2) + add_newline_flag = TRUE; + } + + /* If after the first row, we need to always add a newline */ + if (row > row1 && !LineWraps[row - 1]) + *bufp++ = NL; + + if (row < screen_Rows && end_col <= screen_Columns) + { +#ifdef FEAT_MBYTE + if (enc_dbcs != 0) + { + p = ScreenLines + LineOffset[row]; + for (i = start_col; i < end_col; ++i) + if (enc_dbcs == DBCS_JPNU && p[i] == 0x8e) + { + /* single-width double-byte char */ + *bufp++ = 0x8e; + *bufp++ = ScreenLines2[LineOffset[row] + i]; + } + else + { + *bufp++ = p[i]; + if (MB_BYTE2LEN(p[i]) == 2) + *bufp++ = p[++i]; + } + } + else if (enc_utf8) + { + int off; + + off = LineOffset[row]; + for (i = start_col; i < end_col; ++i) + { + /* The base character is either in ScreenLinesUC[] or + * ScreenLines[]. */ + if (ScreenLinesUC[off + i] == 0) + *bufp++ = ScreenLines[off + i]; + else + { + bufp += utf_char2bytes(ScreenLinesUC[off + i], bufp); + if (ScreenLinesC1[off + i] != 0) + { + /* Add one or two composing characters. */ + bufp += utf_char2bytes(ScreenLinesC1[off + i], + bufp); + if (ScreenLinesC2[off + i] != 0) + bufp += utf_char2bytes(ScreenLinesC2[off + i], + bufp); + } + } + /* Skip right halve of double-wide character. */ + if (ScreenLines[off + i + 1] == 0) + ++i; + } + } + else +#endif + { + STRNCPY(bufp, ScreenLines + LineOffset[row] + start_col, + end_col - start_col); + bufp += end_col - start_col; + } + } + } + + /* Add a newline at the end if the selection ended there */ + if (add_newline_flag) + *bufp++ = NL; + + /* First cleanup any old selection and become the owner. */ + clip_free_selection(&clip_star); + clip_own_selection(&clip_star); + + /* Yank the text into the '*' register. */ + clip_yank_selection(MCHAR, buffer, (long)(bufp - buffer), &clip_star); + + /* Make the register contents available to the outside world. */ + clip_gen_set_selection(&clip_star); + +#ifdef FEAT_X11 + if (both) + { + /* Do the same for the '+' register. */ + clip_free_selection(&clip_plus); + clip_own_selection(&clip_plus); + clip_yank_selection(MCHAR, buffer, (long)(bufp - buffer), &clip_plus); + clip_gen_set_selection(&clip_plus); + } +#endif + vim_free(buffer); +} + +/* + * Find the starting and ending positions of the word at the given row and + * column. Only white-separated words are recognized here. + */ +#define CHAR_CLASS(c) (c <= ' ' ? ' ' : vim_iswordc(c)) + + static void +clip_get_word_boundaries(cb, row, col) + VimClipboard *cb; + int row; + int col; +{ + int start_class; + int temp_col; + char_u *p; +#ifdef FEAT_MBYTE + int mboff; +#endif + + if (row >= screen_Rows || col >= screen_Columns) + return; + + p = ScreenLines + LineOffset[row]; +#ifdef FEAT_MBYTE + /* Correct for starting in the right halve of a double-wide char */ + if (enc_dbcs != 0) + col -= dbcs_screen_head_off(p, p + col); + else if (enc_utf8 && p[col] == 0) + --col; +#endif + start_class = CHAR_CLASS(p[col]); + + temp_col = col; + for ( ; temp_col > 0; temp_col--) +#ifdef FEAT_MBYTE + if (enc_dbcs != 0 + && (mboff = dbcs_screen_head_off(p, p + temp_col - 1)) > 0) + temp_col -= mboff; + else +#endif + if (CHAR_CLASS(p[temp_col - 1]) != start_class +#ifdef FEAT_MBYTE + && !(enc_utf8 && p[temp_col - 1] == 0) +#endif + ) + break; + cb->word_start_col = temp_col; + + temp_col = col; + for ( ; temp_col < screen_Columns; temp_col++) +#ifdef FEAT_MBYTE + if (enc_dbcs != 0 && dbcs_ptr2cells(p + temp_col) == 2) + ++temp_col; + else +#endif + if (CHAR_CLASS(p[temp_col]) != start_class +#ifdef FEAT_MBYTE + && !(enc_utf8 && p[temp_col] == 0) +#endif + ) + break; + cb->word_end_col = temp_col; +} + +/* + * Find the column position for the last non-whitespace character on the given + * line. + */ + static int +clip_get_line_end(row) + int row; +{ + int i; + + if (row >= screen_Rows) + return 0; + for (i = screen_Columns; i > 0; i--) + if (ScreenLines[LineOffset[row] + i - 1] != ' ') + break; + return i; +} + +/* + * Update the currently selected region by adding and/or subtracting from the + * beginning or end and inverting the changed area(s). + */ + static void +clip_update_modeless_selection(cb, row1, col1, row2, col2) + VimClipboard *cb; + int row1; + int col1; + int row2; + int col2; +{ + /* See if we changed at the beginning of the selection */ + if (row1 != cb->start.lnum || col1 != (int)cb->start.col) + { + clip_invert_area(row1, col1, (int)cb->start.lnum, cb->start.col, + CLIP_TOGGLE); + cb->start.lnum = row1; + cb->start.col = col1; + } + + /* See if we changed at the end of the selection */ + if (row2 != cb->end.lnum || col2 != (int)cb->end.col) + { + clip_invert_area((int)cb->end.lnum, cb->end.col, row2, col2, + CLIP_TOGGLE); + cb->end.lnum = row2; + cb->end.col = col2; + } +} + + int +clip_gen_own_selection(cbd) + VimClipboard *cbd; +{ +#ifdef FEAT_XCLIPBOARD +# ifdef FEAT_GUI + if (gui.in_use) + return clip_mch_own_selection(cbd); + else +# endif + return clip_xterm_own_selection(cbd); +#else + return clip_mch_own_selection(cbd); +#endif +} + + void +clip_gen_lose_selection(cbd) + VimClipboard *cbd; +{ +#ifdef FEAT_XCLIPBOARD +# ifdef FEAT_GUI + if (gui.in_use) + clip_mch_lose_selection(cbd); + else +# endif + clip_xterm_lose_selection(cbd); +#else + clip_mch_lose_selection(cbd); +#endif +} + + void +clip_gen_set_selection(cbd) + VimClipboard *cbd; +{ +#ifdef FEAT_XCLIPBOARD +# ifdef FEAT_GUI + if (gui.in_use) + clip_mch_set_selection(cbd); + else +# endif + clip_xterm_set_selection(cbd); +#else + clip_mch_set_selection(cbd); +#endif +} + + void +clip_gen_request_selection(cbd) + VimClipboard *cbd; +{ +#ifdef FEAT_XCLIPBOARD +# ifdef FEAT_GUI + if (gui.in_use) + clip_mch_request_selection(cbd); + else +# endif + clip_xterm_request_selection(cbd); +#else + clip_mch_request_selection(cbd); +#endif +} + +#endif /* FEAT_CLIPBOARD */ + +/***************************************************************************** + * Functions that handle the input buffer. + * This is used for any GUI version, and the unix terminal version. + * + * For Unix, the input characters are buffered to be able to check for a + * CTRL-C. This should be done with signals, but I don't know how to do that + * in a portable way for a tty in RAW mode. + * + * For the client-server code in the console the received keys are put in the + * input buffer. + */ + +#if defined(USE_INPUT_BUF) || defined(PROTO) + +/* + * Internal typeahead buffer. Includes extra space for long key code + * descriptions which would otherwise overflow. The buffer is considered full + * when only this extra space (or part of it) remains. + */ +#if defined(FEAT_SUN_WORKSHOP) || defined(FEAT_NETBEANS_INTG) \ + || defined(FEAT_CLIENTSERVER) + /* + * Sun WorkShop and NetBeans stuff debugger commands into the input buffer. + * This requires a larger buffer... + * (Madsen) Go with this for remote input as well ... + */ +# define INBUFLEN 4096 +#else +# define INBUFLEN 250 +#endif + +static char_u inbuf[INBUFLEN + MAX_KEY_CODE_LEN]; +static int inbufcount = 0; /* number of chars in inbuf[] */ + +/* + * vim_is_input_buf_full(), vim_is_input_buf_empty(), add_to_input_buf(), and + * trash_input_buf() are functions for manipulating the input buffer. These + * are used by the gui_* calls when a GUI is used to handle keyboard input. + */ + + int +vim_is_input_buf_full() +{ + return (inbufcount >= INBUFLEN); +} + + int +vim_is_input_buf_empty() +{ + return (inbufcount == 0); +} + +#if defined(FEAT_OLE) || defined(PROTO) + int +vim_free_in_input_buf() +{ + return (INBUFLEN - inbufcount); +} +#endif + +#if defined(FEAT_GUI_GTK) || defined(PROTO) + int +vim_used_in_input_buf() +{ + return inbufcount; +} +#endif + +#if defined(FEAT_EVAL) || defined(FEAT_EX_EXTRA) || defined(PROTO) +/* + * Return the current contents of the input buffer and make it empty. + * The returned pointer must be passed to set_input_buf() later. + */ + char_u * +get_input_buf() +{ + garray_T *gap; + + /* We use a growarray to store the data pointer and the length. */ + gap = (garray_T *)alloc((unsigned)sizeof(garray_T)); + if (gap != NULL) + { + /* Add one to avoid a zero size. */ + gap->ga_data = alloc((unsigned)inbufcount + 1); + if (gap->ga_data != NULL) + mch_memmove(gap->ga_data, inbuf, (size_t)inbufcount); + gap->ga_len = inbufcount; + } + trash_input_buf(); + return (char_u *)gap; +} + +/* + * Restore the input buffer with a pointer returned from get_input_buf(). + * The allocated memory is freed, this only works once! + */ + void +set_input_buf(p) + char_u *p; +{ + garray_T *gap = (garray_T *)p; + + if (gap != NULL) + { + if (gap->ga_data != NULL) + { + mch_memmove(inbuf, gap->ga_data, gap->ga_len); + inbufcount = gap->ga_len; + vim_free(gap->ga_data); + } + vim_free(gap); + } +} +#endif + +#if defined(FEAT_GUI) || defined(FEAT_MOUSE_GPM) \ + || defined(FEAT_XCLIPBOARD) || defined(VMS) \ + || defined(FEAT_SNIFF) || defined(FEAT_CLIENTSERVER) || defined(PROTO) +/* + * Add the given bytes to the input buffer + * Special keys start with CSI. A real CSI must have been translated to + * CSI KS_EXTRA KE_CSI. K_SPECIAL doesn't require translation. + */ + void +add_to_input_buf(s, len) + char_u *s; + int len; +{ + if (inbufcount + len > INBUFLEN + MAX_KEY_CODE_LEN) + return; /* Shouldn't ever happen! */ + +#ifdef FEAT_HANGULIN + if ((State & (INSERT|CMDLINE)) && hangul_input_state_get()) + if ((len = hangul_input_process(s, len)) == 0) + return; +#endif + + while (len--) + inbuf[inbufcount++] = *s++; +} +#endif + +#if (defined(FEAT_XIM) && defined(FEAT_GUI_GTK)) \ + || (defined(FEAT_MBYTE) && defined(FEAT_MBYTE_IME)) \ + || defined(PROTO) +/* + * Add "str[len]" to the input buffer while escaping CSI bytes. + */ + void +add_to_input_buf_csi(char_u *str, int len) +{ + int i; + char_u buf[2]; + + for (i = 0; i < len; ++i) + { + add_to_input_buf(str + i, 1); + if (str[i] == CSI) + { + /* Turn CSI into K_CSI. */ + buf[0] = KS_EXTRA; + buf[1] = (int)KE_CSI; + add_to_input_buf(buf, 2); + } + } +} +#endif + +#if defined(FEAT_HANGULIN) || defined(PROTO) + void +push_raw_key (s, len) + char_u *s; + int len; +{ + while (len--) + inbuf[inbufcount++] = *s++; +} +#endif + +#if defined(FEAT_GUI) || defined(FEAT_EVAL) || defined(FEAT_EX_EXTRA) \ + || defined(PROTO) +/* Remove everything from the input buffer. Called when ^C is found */ + void +trash_input_buf() +{ + inbufcount = 0; +} +#endif + +/* + * Read as much data from the input buffer as possible up to maxlen, and store + * it in buf. + * Note: this function used to be Read() in unix.c + */ + int +read_from_input_buf(buf, maxlen) + char_u *buf; + long maxlen; +{ + if (inbufcount == 0) /* if the buffer is empty, fill it */ + fill_input_buf(TRUE); + if (maxlen > inbufcount) + maxlen = inbufcount; + mch_memmove(buf, inbuf, (size_t)maxlen); + inbufcount -= maxlen; + if (inbufcount) + mch_memmove(inbuf, inbuf + maxlen, (size_t)inbufcount); + return (int)maxlen; +} + + void +fill_input_buf(exit_on_error) + int exit_on_error; +{ +#if defined(UNIX) || defined(OS2) || defined(VMS) || defined(MACOS_X_UNIX) + int len; + int try; + static int did_read_something = FALSE; +# ifdef FEAT_MBYTE + static char_u *rest = NULL; /* unconverted rest of previous read */ + static int restlen = 0; + int unconverted; +# endif +#endif + +#ifdef FEAT_GUI + if (gui.in_use) + { + gui_mch_update(); + return; + } +#endif +#if defined(UNIX) || defined(OS2) || defined(VMS) || defined(MACOS_X_UNIX) + if (vim_is_input_buf_full()) + return; + /* + * Fill_input_buf() is only called when we really need a character. + * If we can't get any, but there is some in the buffer, just return. + * If we can't get any, and there isn't any in the buffer, we give up and + * exit Vim. + */ +# ifdef __BEOS__ + /* + * On the BeBox version (for now), all input is secretly performed within + * beos_select() which is called from RealWaitForChar(). + */ + while (!vim_is_input_buf_full() && RealWaitForChar(read_cmd_fd, 0, NULL)) + ; + len = inbufcount; + inbufcount = 0; +# else + +# ifdef FEAT_SNIFF + if (sniff_request_waiting) + { + add_to_input_buf((char_u *)"\233sniff",6); /* results in K_SNIFF */ + sniff_request_waiting = 0; + want_sniff_request = 0; + return; + } +# endif + +# ifdef FEAT_MBYTE + if (rest != NULL) + { + /* Use remainder of previous call, starts with an invalid character + * that may become valid when reading more. */ + if (restlen > INBUFLEN - inbufcount) + unconverted = INBUFLEN - inbufcount; + else + unconverted = restlen; + mch_memmove(inbuf + inbufcount, rest, unconverted); + if (unconverted == restlen) + { + vim_free(rest); + rest = NULL; + } + else + { + restlen -= unconverted; + mch_memmove(rest, rest + unconverted, restlen); + } + inbufcount += unconverted; + } + else + unconverted = 0; +#endif + + len = 0; /* to avoid gcc warning */ + for (try = 0; try < 100; ++try) + { +# ifdef VMS + len = vms_read( +# else + len = read(read_cmd_fd, +# endif + (char *)inbuf + inbufcount, (size_t)((INBUFLEN - inbufcount) +# ifdef FEAT_MBYTE + / input_conv.vc_factor +# endif + )); +# if 0 + ) /* avoid syntax highlight error */ +# endif + if (len > 0 || got_int) + break; + /* + * If reading stdin results in an error, continue reading stderr. + * This helps when using "foo | xargs vim". + */ + if (!did_read_something && !isatty(read_cmd_fd) && read_cmd_fd == 0) + { + int m = cur_tmode; + + /* We probably set the wrong file descriptor to raw mode. Switch + * back to cooked mode, use another descriptor and set the mode to + * what it was. */ + settmode(TMODE_COOK); +#ifdef HAVE_DUP + /* Use stderr for stdin, also works for shell commands. */ + close(0); + dup(2); +#else + read_cmd_fd = 2; /* read from stderr instead of stdin */ +#endif + settmode(m); + } + if (!exit_on_error) + return; + } +# endif + if (len <= 0 && !got_int) + read_error_exit(); + if (len > 0) + did_read_something = TRUE; + if (got_int) + { + /* Interrupted, pretend a CTRL-C was typed. */ + inbuf[0] = 3; + inbufcount = 1; + } + else + { +# ifdef FEAT_MBYTE + /* + * May perform conversion on the input characters. + * Include the unconverted rest of the previous call. + * If there is an incomplete char at the end it is kept for the next + * time, reading more bytes should make conversion possible. + * Don't do this in the unlikely event that the input buffer is too + * small ("rest" still contains more bytes). + */ + if (input_conv.vc_type != CONV_NONE) + { + inbufcount -= unconverted; + len = convert_input_safe(inbuf + inbufcount, + len + unconverted, INBUFLEN - inbufcount, + rest == NULL ? &rest : NULL, &restlen); + } +# endif + while (len-- > 0) + { + /* + * if a CTRL-C was typed, remove it from the buffer and set got_int + */ + if (inbuf[inbufcount] == 3 && ctrl_c_interrupts) + { + /* remove everything typed before the CTRL-C */ + mch_memmove(inbuf, inbuf + inbufcount, (size_t)(len + 1)); + inbufcount = 0; + got_int = TRUE; + } + ++inbufcount; + } + } +#endif /* UNIX or OS2 or VMS*/ +} +#endif /* defined(UNIX) || defined(FEAT_GUI) || defined(OS2) || defined(VMS) */ + +/* + * Exit because of an input read error. + */ + void +read_error_exit() +{ + if (silent_mode) /* Normal way to exit for "ex -s" */ + getout(0); + STRCPY(IObuff, _("Vim: Error reading input, exiting...\n")); + preserve_exit(); +} + +#if defined(CURSOR_SHAPE) || defined(PROTO) +/* + * May update the shape of the cursor. + */ + void +ui_cursor_shape() +{ +# ifdef FEAT_GUI + if (gui.in_use) + gui_update_cursor_later(); +# endif +# ifdef MCH_CURSOR_SHAPE + mch_update_cursor(); +# endif +} +#endif + +#if defined(FEAT_CLIPBOARD) || defined(FEAT_GUI) || defined(FEAT_RIGHTLEFT) \ + || defined(PROTO) +/* + * Check bounds for column number + */ + int +check_col(col) + int col; +{ + if (col < 0) + return 0; + if (col >= (int)screen_Columns) + return (int)screen_Columns - 1; + return col; +} + +/* + * Check bounds for row number + */ + int +check_row(row) + int row; +{ + if (row < 0) + return 0; + if (row >= (int)screen_Rows) + return (int)screen_Rows - 1; + return row; +} +#endif + +/* + * Stuff for the X clipboard. Shared between VMS and Unix. + */ + +#if defined(FEAT_XCLIPBOARD) || defined(FEAT_GUI_X11) || defined(PROTO) +# include <X11/Xatom.h> +# include <X11/Intrinsic.h> + +/* + * Open the application context (if it hasn't been opened yet). + * Used for Motif and Athena GUI and the xterm clipboard. + */ + void +open_app_context() +{ + if (app_context == NULL) + { + XtToolkitInitialize(); + app_context = XtCreateApplicationContext(); + } +} + +static Atom vim_atom; /* Vim's own special selection format */ +#ifdef FEAT_MBYTE +static Atom vimenc_atom; /* Vim's extended selection format */ +#endif +static Atom compound_text_atom; +static Atom text_atom; +static Atom targets_atom; + + void +x11_setup_atoms(dpy) + Display *dpy; +{ + vim_atom = XInternAtom(dpy, VIM_ATOM_NAME, False); +#ifdef FEAT_MBYTE + vimenc_atom = XInternAtom(dpy, VIMENC_ATOM_NAME,False); +#endif + compound_text_atom = XInternAtom(dpy, "COMPOUND_TEXT", False); + text_atom = XInternAtom(dpy, "TEXT", False); + targets_atom = XInternAtom(dpy, "TARGETS", False); + clip_star.sel_atom = XA_PRIMARY; + clip_plus.sel_atom = XInternAtom(dpy, "CLIPBOARD", False); +} + +/* + * X Selection stuff, for cutting and pasting text to other windows. + */ + +static void clip_x11_request_selection_cb __ARGS((Widget, XtPointer, Atom *, Atom *, XtPointer, long_u *, int *)); + +/* ARGSUSED */ + static void +clip_x11_request_selection_cb(w, success, sel_atom, type, value, length, + format) + Widget w; + XtPointer success; + Atom *sel_atom; + Atom *type; + XtPointer value; + long_u *length; + int *format; +{ + int motion_type; + long_u len; + char_u *p; + char **text_list = NULL; + VimClipboard *cbd; +#ifdef FEAT_MBYTE + char_u *tmpbuf = NULL; +#endif + + if (*sel_atom == clip_plus.sel_atom) + cbd = &clip_plus; + else + cbd = &clip_star; + + if (value == NULL || *length == 0) + { + clip_free_selection(cbd); /* ??? [what's the query?] */ + *(int *)success = FALSE; + return; + } + motion_type = MCHAR; + p = (char_u *)value; + len = *length; + if (*type == vim_atom) + { + motion_type = *p++; + len--; + } + +#ifdef FEAT_MBYTE + else if (*type == vimenc_atom) + { + char_u *enc; + vimconv_T conv; + int convlen; + + motion_type = *p++; + --len; + + enc = p; + p += STRLEN(p) + 1; + len -= p - enc; + + /* If the encoding of the text is different from 'encoding', attempt + * converting it. */ + conv.vc_type = CONV_NONE; + convert_setup(&conv, enc, p_enc); + if (conv.vc_type != CONV_NONE) + { + convlen = len; /* Need to use an int here. */ + tmpbuf = string_convert(&conv, p, &convlen); + len = convlen; + if (tmpbuf != NULL) + p = tmpbuf; + convert_setup(&conv, NULL, NULL); + } + } +#endif + + else if (*type == compound_text_atom || ( +#ifdef FEAT_MBYTE + enc_dbcs != 0 && +#endif + *type == text_atom)) + { + XTextProperty text_prop; + int n_text = 0; + int status; + + text_prop.value = (unsigned char *)value; + text_prop.encoding = *type; + text_prop.format = *format; + text_prop.nitems = STRLEN(value); + status = XmbTextPropertyToTextList(X_DISPLAY, &text_prop, + &text_list, &n_text); + if (status != Success || n_text < 1) + { + *(int *)success = FALSE; + return; + } + p = (char_u *)text_list[0]; + len = STRLEN(p); + } + clip_yank_selection(motion_type, p, (long)len, cbd); + + if (text_list != NULL) + XFreeStringList(text_list); +#ifdef FEAT_MBYTE + vim_free(tmpbuf); +#endif + XtFree((char *)value); + *(int *)success = TRUE; +} + + void +clip_x11_request_selection(myShell, dpy, cbd) + Widget myShell; + Display *dpy; + VimClipboard *cbd; +{ + XEvent event; + Atom type; + static int success; + int i; + int nbytes = 0; + char_u *buffer; + + for (i = +#ifdef FEAT_MBYTE + 0 +#else + 1 +#endif + ; i < 5; i++) + { + switch (i) + { +#ifdef FEAT_MBYTE + case 0: type = vimenc_atom; break; +#endif + case 1: type = vim_atom; break; + case 2: type = compound_text_atom; break; + case 3: type = text_atom; break; + default: type = XA_STRING; + } + XtGetSelectionValue(myShell, cbd->sel_atom, type, + clip_x11_request_selection_cb, (XtPointer)&success, CurrentTime); + + /* Make sure the request for the selection goes out before waiting for + * a response. */ + XFlush(dpy); + + /* + * Wait for result of selection request, otherwise if we type more + * characters, then they will appear before the one that requested the + * paste! Don't worry, we will catch up with any other events later. + */ + for (;;) + { + if (XCheckTypedEvent(dpy, SelectionNotify, &event)) + break; + + /* Do we need this? Probably not. */ + XSync(dpy, False); + + /* Bernhard Walle solved a slow paste response in an X terminal by + * adding: usleep(10000); here. */ + } + + /* this is where clip_x11_request_selection_cb() is actually called */ + XtDispatchEvent(&event); + + if (success) + return; + } + + /* Final fallback position - use the X CUT_BUFFER0 store */ + buffer = (char_u *)XFetchBuffer(dpy, &nbytes, 0); + if (nbytes > 0) + { + /* Got something */ + clip_yank_selection(MCHAR, buffer, (long)nbytes, cbd); + XFree((void *)buffer); + if (p_verbose > 0) + smsg((char_u *)_("Used CUT_BUFFER0 instead of empty selection") ); + } +} + +static Boolean clip_x11_convert_selection_cb __ARGS((Widget, Atom *, Atom *, Atom *, XtPointer *, long_u *, int *)); + +/* ARGSUSED */ + static Boolean +clip_x11_convert_selection_cb(w, sel_atom, target, type, value, length, format) + Widget w; + Atom *sel_atom; + Atom *target; + Atom *type; + XtPointer *value; + long_u *length; + int *format; +{ + char_u *string; + char_u *result; + int motion_type; + VimClipboard *cbd; + int i; + + if (*sel_atom == clip_plus.sel_atom) + cbd = &clip_plus; + else + cbd = &clip_star; + + if (!cbd->owned) + return False; /* Shouldn't ever happen */ + + /* requestor wants to know what target types we support */ + if (*target == targets_atom) + { + Atom *array; + + if ((array = (Atom *)XtMalloc((unsigned)(sizeof(Atom) * 6))) == NULL) + return False; + *value = (XtPointer)array; + i = 0; + array[i++] = XA_STRING; + array[i++] = targets_atom; +#ifdef FEAT_MBYTE + array[i++] = vimenc_atom; +#endif + array[i++] = vim_atom; + array[i++] = text_atom; + array[i++] = compound_text_atom; + *type = XA_ATOM; + /* This used to be: *format = sizeof(Atom) * 8; but that caused + * crashes on 64 bit machines. (Peter Derr) */ + *format = 32; + *length = i; + return True; + } + + if ( *target != XA_STRING +#ifdef FEAT_MBYTE + && *target != vimenc_atom +#endif + && *target != vim_atom + && *target != text_atom + && *target != compound_text_atom) + return False; + + clip_get_selection(cbd); + motion_type = clip_convert_selection(&string, length, cbd); + if (motion_type < 0) + return False; + + /* For our own format, the first byte contains the motion type */ + if (*target == vim_atom) + (*length)++; + +#ifdef FEAT_MBYTE + /* Our own format with encoding: motion 'encoding' NUL text */ + if (*target == vimenc_atom) + *length += STRLEN(p_enc) + 2; +#endif + + *value = XtMalloc((Cardinal)*length); + result = (char_u *)*value; + if (result == NULL) + { + vim_free(string); + return False; + } + + if (*target == XA_STRING) + { + mch_memmove(result, string, (size_t)(*length)); + *type = XA_STRING; + } + else if (*target == compound_text_atom + || *target == text_atom) + { + XTextProperty text_prop; + char *string_nt = (char *)alloc((unsigned)*length + 1); + + /* create NUL terminated string which XmbTextListToTextProperty wants */ + mch_memmove(string_nt, string, (size_t)*length); + string_nt[*length] = NUL; + XmbTextListToTextProperty(X_DISPLAY, (char **)&string_nt, 1, + XCompoundTextStyle, &text_prop); + vim_free(string_nt); + XtFree(*value); /* replace with COMPOUND text */ + *value = (XtPointer)(text_prop.value); /* from plain text */ + *length = text_prop.nitems; + *type = compound_text_atom; + } + +#ifdef FEAT_MBYTE + else if (*target == vimenc_atom) + { + int l = STRLEN(p_enc); + + result[0] = motion_type; + STRCPY(result + 1, p_enc); + mch_memmove(result + l + 2, string, (size_t)(*length - l - 2)); + *type = vimenc_atom; + } +#endif + + else + { + result[0] = motion_type; + mch_memmove(result + 1, string, (size_t)(*length - 1)); + *type = vim_atom; + } + *format = 8; /* 8 bits per char */ + vim_free(string); + return True; +} + +static void clip_x11_lose_ownership_cb __ARGS((Widget, Atom *)); + +/* ARGSUSED */ + static void +clip_x11_lose_ownership_cb(w, sel_atom) + Widget w; + Atom *sel_atom; +{ + if (*sel_atom == clip_plus.sel_atom) + clip_lose_selection(&clip_plus); + else + clip_lose_selection(&clip_star); +} + + void +clip_x11_lose_selection(myShell, cbd) + Widget myShell; + VimClipboard *cbd; +{ + XtDisownSelection(myShell, cbd->sel_atom, CurrentTime); +} + + int +clip_x11_own_selection(myShell, cbd) + Widget myShell; + VimClipboard *cbd; +{ + if (XtOwnSelection(myShell, cbd->sel_atom, CurrentTime, + clip_x11_convert_selection_cb, clip_x11_lose_ownership_cb, + NULL) == False) + return FAIL; + return OK; +} + +/* + * Send the current selection to the clipboard. Do nothing for X because we + * will fill in the selection only when requested by another app. + */ +/*ARGSUSED*/ + void +clip_x11_set_selection(cbd) + VimClipboard *cbd; +{ +} +#endif + +#if defined(FEAT_MOUSE) || defined(PROTO) + +/* + * Move the cursor to the specified row and column on the screen. + * Change current window if neccesary. Returns an integer with the + * CURSOR_MOVED bit set if the cursor has moved or unset otherwise. + * + * The MOUSE_FOLD_CLOSE bit is set when clicked on the '-' in a fold column. + * The MOUSE_FOLD_OPEN bit is set when clicked on the '+' in a fold column. + * + * If flags has MOUSE_FOCUS, then the current window will not be changed, and + * if the mouse is outside the window then the text will scroll, or if the + * mouse was previously on a status line, then the status line may be dragged. + * + * If flags has MOUSE_MAY_VIS, then VIsual mode will be started before the + * cursor is moved unless the cursor was on a status line. + * This function returns one of IN_UNKNOWN, IN_BUFFER, IN_STATUS_LINE or + * IN_SEP_LINE depending on where the cursor was clicked. + * + * If flags has MOUSE_MAY_STOP_VIS, then Visual mode will be stopped, unless + * the mouse is on the status line of the same window. + * + * If flags has MOUSE_DID_MOVE, nothing is done if the mouse didn't move since + * the last call. + * + * If flags has MOUSE_SETPOS, nothing is done, only the current position is + * remembered. + */ + int +jump_to_mouse(flags, inclusive, which_button) + int flags; + int *inclusive; /* used for inclusive operator, can be NULL */ + int which_button; /* MOUSE_LEFT, MOUSE_RIGHT, MOUSE_MIDDLE */ +{ + static int on_status_line = 0; /* #lines below bottom of window */ +#ifdef FEAT_VERTSPLIT + static int on_sep_line = 0; /* on separator right of window */ +#endif + static int prev_row = -1; + static int prev_col = -1; + static win_T *dragwin = NULL; /* window being dragged */ + static int did_drag = FALSE; /* drag was noticed */ + + win_T *wp, *old_curwin; + pos_T old_cursor; + int count; + int first; + int row = mouse_row; + int col = mouse_col; +#ifdef FEAT_FOLDING + int mouse_char; +#endif + + mouse_past_bottom = FALSE; + mouse_past_eol = FALSE; + + if (flags & MOUSE_RELEASED) + { + /* On button release we may change window focus if positioned on a + * status line and no dragging happened. */ + if (dragwin != NULL && !did_drag) + flags &= ~(MOUSE_FOCUS | MOUSE_DID_MOVE); + dragwin = NULL; + did_drag = FALSE; + } + + if ((flags & MOUSE_DID_MOVE) + && prev_row == mouse_row + && prev_col == mouse_col) + { +retnomove: + /* before moving the cursor for a left click wich is NOT in a status + * line, stop Visual mode */ + if (on_status_line) + return IN_STATUS_LINE; +#ifdef FEAT_VERTSPLIT + if (on_sep_line) + return IN_SEP_LINE; +#endif +#ifdef FEAT_VISUAL + if (flags & MOUSE_MAY_STOP_VIS) + { + end_visual_mode(); + redraw_curbuf_later(INVERTED); /* delete the inversion */ + } +#endif +#if defined(FEAT_CMDWIN) && defined(FEAT_CLIPBOARD) + /* Continue a modeless selection in another window. */ + if (cmdwin_type != 0 && row < W_WINROW(curwin)) + return IN_OTHER_WIN; +#endif + return IN_BUFFER; + } + + prev_row = mouse_row; + prev_col = mouse_col; + + if (flags & MOUSE_SETPOS) + goto retnomove; /* ugly goto... */ + +#ifdef FEAT_FOLDING + /* Remember the character under the mouse, it might be a '-' or '+' in the + * fold column. */ + if (row >= 0 && row < Rows && col >= 0 && col <= Columns) + mouse_char = ScreenLines[LineOffset[row] + col]; + else + mouse_char = ' '; +#endif + + old_curwin = curwin; + old_cursor = curwin->w_cursor; + + if (!(flags & MOUSE_FOCUS)) + { + if (row < 0 || col < 0) /* check if it makes sense */ + return IN_UNKNOWN; + +#ifdef FEAT_WINDOWS + /* find the window where the row is in */ + wp = mouse_find_win(&row, &col); +#else + wp = firstwin; +#endif + dragwin = NULL; + /* + * winpos and height may change in win_enter()! + */ + if (row >= wp->w_height) /* In (or below) status line */ + { + on_status_line = row - wp->w_height + 1; + dragwin = wp; + } + else + on_status_line = 0; +#ifdef FEAT_VERTSPLIT + if (col >= wp->w_width) /* In separator line */ + { + on_sep_line = col - wp->w_width + 1; + dragwin = wp; + } + else + on_sep_line = 0; + + /* The rightmost character of the status line might be a vertical + * separator character if there is no connecting window to the right. */ + if (on_status_line && on_sep_line) + { + if (stl_connected(wp)) + on_sep_line = 0; + else + on_status_line = 0; + } +#endif + +#ifdef FEAT_VISUAL + /* Before jumping to another buffer, or moving the cursor for a left + * click, stop Visual mode. */ + if (VIsual_active + && (wp->w_buffer != curwin->w_buffer + || (!on_status_line +# ifdef FEAT_VERTSPLIT + && !on_sep_line +# endif +# ifdef FEAT_FOLDING + && ( +# ifdef FEAT_RIGHTLEFT + wp->w_p_rl ? col < W_WIDTH(wp) - wp->w_p_fdc : +# endif + col >= wp->w_p_fdc +# ifdef FEAT_CMDWIN + + (cmdwin_type == 0 && wp == curwin ? 0 : 1) +# endif + ) +# endif + && (flags & MOUSE_MAY_STOP_VIS)))) + { + end_visual_mode(); + redraw_curbuf_later(INVERTED); /* delete the inversion */ + } +#endif +#ifdef FEAT_CMDWIN + if (cmdwin_type != 0 && wp != curwin) + { + /* A click outside the command-line window: Use modeless + * selection if possible. Allow dragging the status line of + * windows just above the command-line window. */ + if (wp->w_winrow + wp->w_height + != curwin->w_prev->w_winrow + curwin->w_prev->w_height) + { + on_status_line = 0; + dragwin = NULL; + } +# ifdef FEAT_VERTSPLIT + on_sep_line = 0; +# endif +# ifdef FEAT_CLIPBOARD + if (on_status_line) + return IN_STATUS_LINE; + return IN_OTHER_WIN; +# else + row = 0; + col += wp->w_wincol; + wp = curwin; +# endif + } +#endif +#ifdef FEAT_WINDOWS + /* Only change window focus when not clicking on or dragging the + * status line. Do change focus when releasing the mouse button + * (MOUSE_FOCUS was set above if we dragged first). */ + if (dragwin == NULL || (flags & MOUSE_RELEASED)) + win_enter(wp, TRUE); /* can make wp invalid! */ +# ifdef CHECK_DOUBLE_CLICK + /* set topline, to be able to check for double click ourselves */ + if (curwin != old_curwin) + set_mouse_topline(curwin); +# endif +#endif + if (on_status_line) /* In (or below) status line */ + { + /* Don't use start_arrow() if we're in the same window */ + if (curwin == old_curwin) + return IN_STATUS_LINE; + else + return IN_STATUS_LINE | CURSOR_MOVED; + } +#ifdef FEAT_VERTSPLIT + if (on_sep_line) /* In (or below) status line */ + { + /* Don't use start_arrow() if we're in the same window */ + if (curwin == old_curwin) + return IN_SEP_LINE; + else + return IN_SEP_LINE | CURSOR_MOVED; + } +#endif + + curwin->w_cursor.lnum = curwin->w_topline; +#ifdef FEAT_GUI + /* remember topline, needed for double click */ + gui_prev_topline = curwin->w_topline; +# ifdef FEAT_DIFF + gui_prev_topfill = curwin->w_topfill; +# endif +#endif + } + else if (on_status_line && which_button == MOUSE_LEFT) + { +#ifdef FEAT_WINDOWS + if (dragwin != NULL) + { + /* Drag the status line */ + count = row - dragwin->w_winrow - dragwin->w_height + 1 + - on_status_line; + win_drag_status_line(dragwin, count); + did_drag |= count; + } +#endif + return IN_STATUS_LINE; /* Cursor didn't move */ + } +#ifdef FEAT_VERTSPLIT + else if (on_sep_line && which_button == MOUSE_LEFT) + { + if (dragwin != NULL) + { + /* Drag the separator column */ + count = col - dragwin->w_wincol - dragwin->w_width + 1 + - on_sep_line; + win_drag_vsep_line(dragwin, count); + did_drag |= count; + } + return IN_SEP_LINE; /* Cursor didn't move */ + } +#endif + else /* keep_window_focus must be TRUE */ + { +#ifdef FEAT_VISUAL + /* before moving the cursor for a left click, stop Visual mode */ + if (flags & MOUSE_MAY_STOP_VIS) + { + end_visual_mode(); + redraw_curbuf_later(INVERTED); /* delete the inversion */ + } +#endif + +#if defined(FEAT_CMDWIN) && defined(FEAT_CLIPBOARD) + /* Continue a modeless selection in another window. */ + if (cmdwin_type != 0 && row < W_WINROW(curwin)) + return IN_OTHER_WIN; +#endif + + row -= W_WINROW(curwin); +#ifdef FEAT_VERTSPLIT + col -= W_WINCOL(curwin); +#endif + + /* + * When clicking beyond the end of the window, scroll the screen. + * Scroll by however many rows outside the window we are. + */ + if (row < 0) + { + count = 0; + for (first = TRUE; curwin->w_topline > 1; ) + { +#ifdef FEAT_DIFF + if (curwin->w_topfill < diff_check(curwin, curwin->w_topline)) + ++count; + else +#endif + count += plines(curwin->w_topline - 1); + if (!first && count > -row) + break; + first = FALSE; +#ifdef FEAT_FOLDING + hasFolding(curwin->w_topline, &curwin->w_topline, NULL); +#endif +#ifdef FEAT_DIFF + if (curwin->w_topfill < diff_check(curwin, curwin->w_topline)) + ++curwin->w_topfill; + else +#endif + { + --curwin->w_topline; +#ifdef FEAT_DIFF + curwin->w_topfill = 0; +#endif + } + } +#ifdef FEAT_DIFF + check_topfill(curwin, FALSE); +#endif + curwin->w_valid &= + ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP); + redraw_later(VALID); + row = 0; + } + else if (row >= curwin->w_height) + { + count = 0; + for (first = TRUE; curwin->w_topline < curbuf->b_ml.ml_line_count; ) + { +#ifdef FEAT_DIFF + if (curwin->w_topfill > 0) + ++count; + else +#endif + count += plines(curwin->w_topline); + if (!first && count > row - curwin->w_height + 1) + break; + first = FALSE; +#ifdef FEAT_FOLDING + if (hasFolding(curwin->w_topline, NULL, &curwin->w_topline) + && curwin->w_topline == curbuf->b_ml.ml_line_count) + break; +#endif +#ifdef FEAT_DIFF + if (curwin->w_topfill > 0) + --curwin->w_topfill; + else +#endif + { + ++curwin->w_topline; +#ifdef FEAT_DIFF + curwin->w_topfill = + diff_check_fill(curwin, curwin->w_topline); +#endif + } + } +#ifdef FEAT_DIFF + check_topfill(curwin, FALSE); +#endif + redraw_later(VALID); + curwin->w_valid &= + ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP); + row = curwin->w_height - 1; + } + else if (row == 0) + { + /* When dragging the mouse, while the text has been scrolled up as + * far as it goes, moving the mouse in the top line should scroll + * the text down (done later when recomputing w_topline). */ + if (mouse_dragging + && curwin->w_cursor.lnum + == curwin->w_buffer->b_ml.ml_line_count + && curwin->w_cursor.lnum == curwin->w_topline) + curwin->w_valid &= ~(VALID_TOPLINE); + } + } + +#ifdef FEAT_FOLDING + /* Check for position outside of the fold column. */ + if ( +# ifdef FEAT_RIGHTLEFT + curwin->w_p_rl ? col < W_WIDTH(curwin) - curwin->w_p_fdc : +# endif + col >= curwin->w_p_fdc +# ifdef FEAT_CMDWIN + + (cmdwin_type == 0 ? 0 : 1) +# endif + ) + mouse_char = ' '; +#endif + + /* compute the position in the buffer line from the posn on the screen */ + if (mouse_comp_pos(curwin, &row, &col, &curwin->w_cursor.lnum)) + mouse_past_bottom = TRUE; + +#ifdef FEAT_VISUAL + /* Start Visual mode before coladvance(), for when 'sel' != "old" */ + if ((flags & MOUSE_MAY_VIS) && !VIsual_active) + { + check_visual_highlight(); + VIsual = old_cursor; + VIsual_active = TRUE; + VIsual_reselect = TRUE; + /* if 'selectmode' contains "mouse", start Select mode */ + may_start_select('o'); + setmouse(); + if (p_smd) + redraw_cmdline = TRUE; /* show visual mode later */ + } +#endif + + curwin->w_curswant = col; + curwin->w_set_curswant = FALSE; /* May still have been TRUE */ + if (coladvance(col) == FAIL) /* Mouse click beyond end of line */ + { + if (inclusive != NULL) + *inclusive = TRUE; + mouse_past_eol = TRUE; + } + else if (inclusive != NULL) + *inclusive = FALSE; + + count = IN_BUFFER; + if (curwin != old_curwin || curwin->w_cursor.lnum != old_cursor.lnum + || curwin->w_cursor.col != old_cursor.col) + count |= CURSOR_MOVED; /* Cursor has moved */ + +#ifdef FEAT_FOLDING + if (mouse_char == '+') + count |= MOUSE_FOLD_OPEN; + else if (mouse_char != ' ') + count |= MOUSE_FOLD_CLOSE; +#endif + + return count; +} + +/* + * Compute the position in the buffer line from the posn on the screen in + * window "win". + * Returns TRUE if the position is below the last line. + */ + int +mouse_comp_pos(win, rowp, colp, lnump) + win_T *win; + int *rowp; + int *colp; + linenr_T *lnump; +{ + int col = *colp; + int row = *rowp; + linenr_T lnum; + int retval = FALSE; + int off; + int count; + +#ifdef FEAT_RIGHTLEFT + if (win->w_p_rl) + col = W_WIDTH(win) - 1 - col; +#endif + + lnum = win->w_topline; + + while (row > 0) + { +#ifdef FEAT_DIFF + /* Don't include filler lines in "count" */ + if (win->w_p_diff && !hasFoldingWin(win, lnum, NULL, NULL, TRUE, NULL)) + { + if (lnum == win->w_topline) + row -= win->w_topfill; + else + row -= diff_check_fill(win, lnum); + count = plines_win_nofill(win, lnum, TRUE); + } + else +#endif + count = plines_win(win, lnum, TRUE); + if (count > row) + break; /* Position is in this buffer line. */ +#ifdef FEAT_FOLDING + (void)hasFoldingWin(win, lnum, NULL, &lnum, TRUE, NULL); +#endif + if (lnum == win->w_buffer->b_ml.ml_line_count) + { + retval = TRUE; + break; /* past end of file */ + } + row -= count; + ++lnum; + } + + if (!retval) + { + /* Compute the column without wrapping. */ + off = win_col_off(win) - win_col_off2(win); + if (col < off) + col = off; + col += row * (W_WIDTH(win) - off); + /* add skip column (for long wrapping line) */ + col += win->w_skipcol; + } + + if (!win->w_p_wrap) + col += win->w_leftcol; + + /* skip line number and fold column in front of the line */ + col -= win_col_off(win); + if (col < 0) + { +#ifdef FEAT_NETBEANS_INTG + if (usingNetbeans) + netbeans_gutter_click(lnum); +#endif + col = 0; + } + + *colp = col; + *rowp = row; + *lnump = lnum; + return retval; +} + +#if defined(FEAT_WINDOWS) || defined(PROTO) +/* + * Find the window at screen position "*rowp" and "*colp". The positions are + * updated to become relative to the top-left of the window. + */ +/*ARGSUSED*/ + win_T * +mouse_find_win(rowp, colp) + int *rowp; + int *colp; +{ + frame_T *fp; + + fp = topframe; + for (;;) + { + if (fp->fr_layout == FR_LEAF) + break; +#ifdef FEAT_VERTSPLIT + if (fp->fr_layout == FR_ROW) + { + for (fp = fp->fr_child; fp->fr_next != NULL; fp = fp->fr_next) + { + if (*colp < fp->fr_width) + break; + *colp -= fp->fr_width; + } + } +#endif + else /* fr_layout == FR_COL */ + { + for (fp = fp->fr_child; fp->fr_next != NULL; fp = fp->fr_next) + { + if (*rowp < fp->fr_height) + break; + *rowp -= fp->fr_height; + } + } + } + return fp->fr_win; +} +#endif + +#if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) || defined (FEAT_GUI_MAC) \ + || defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN) \ + || defined(FEAT_GUI_PHOTON) || defined(PROTO) +/* + * Translate window coordinates to buffer position without any side effects + */ + int +get_fpos_of_mouse(mpos) + pos_T *mpos; +{ + win_T *wp; + int row = mouse_row; + int col = mouse_col; + + if (row < 0 || col < 0) /* check if it makes sense */ + return IN_UNKNOWN; + +#ifdef FEAT_WINDOWS + /* find the window where the row is in */ + wp = mouse_find_win(&row, &col); +#else + wp = firstwin; +#endif + /* + * winpos and height may change in win_enter()! + */ + if (row >= wp->w_height) /* In (or below) status line */ + return IN_STATUS_LINE; +#ifdef FEAT_VERTSPLIT + if (col >= wp->w_width) /* In vertical separator line */ + return IN_SEP_LINE; +#endif + + if (wp != curwin) + return IN_UNKNOWN; + + /* compute the position in the buffer line from the posn on the screen */ + if (mouse_comp_pos(curwin, &row, &col, &mpos->lnum)) + return IN_STATUS_LINE; /* past bottom */ + + mpos->col = vcol2col(wp, mpos->lnum, col); + + if (mpos->col > 0) + --mpos->col; + return IN_BUFFER; +} + +/* + * Convert a virtual (screen) column to a character column. + * The first column is one. + */ + int +vcol2col(wp, lnum, vcol) + win_T *wp; + linenr_T lnum; + int vcol; +{ + /* try to advance to the specified column */ + int col = 0; + int count = 0; + char_u *ptr; + + ptr = ml_get_buf(wp->w_buffer, lnum, FALSE); + while (count <= vcol && *ptr != NUL) + { + ++col; + count += win_lbr_chartabsize(wp, ptr, count, NULL); +# ifdef FEAT_MBYTE + if (has_mbyte) + ptr += (*mb_ptr2len_check)(ptr); + else +# endif + ++ptr; + } + return col; +} +#endif + +#endif /* FEAT_MOUSE */ + +#if defined(FEAT_GUI) || defined(WIN3264) || defined(PROTO) +/* + * Called when focus changed. Used for the GUI or for systems where this can + * be done in the console (Win32). + */ + void +ui_focus_change(in_focus) + int in_focus; /* TRUE if focus gained. */ +{ + static time_t last_time = (time_t)0; + int need_redraw = FALSE; + + /* When activated: Check if any file was modified outside of Vim. + * Only do this when not done within the last two seconds (could get + * several events in a row). */ + if (in_focus && last_time + 2 < time(NULL)) + { + need_redraw = check_timestamps( +# ifdef FEAT_GUI + gui.in_use +# else + FALSE +# endif + ); + last_time = time(NULL); + } + +#ifdef FEAT_AUTOCMD + /* + * Fire the focus gained/lost autocommand. + */ + need_redraw |= apply_autocmds(in_focus ? EVENT_FOCUSGAINED + : EVENT_FOCUSLOST, NULL, NULL, FALSE, curbuf); +#endif + + if (need_redraw) + { + /* Something was executed, make sure the cursor is put back where it + * belongs. */ + need_wait_return = FALSE; + + if (State & CMDLINE) + redrawcmdline(); + else if (State == HITRETURN || State == SETWSIZE || State == ASKMORE + || State == EXTERNCMD || State == CONFIRM || exmode_active) + repeat_message(); + else if ((State & NORMAL) || (State & INSERT)) + { + if (must_redraw != 0) + update_screen(0); + setcursor(); + } + cursor_on(); /* redrawing may have switched it off */ + out_flush(); +# ifdef FEAT_GUI + if (gui.in_use) + { + gui_update_cursor(FALSE, TRUE); + gui_update_scrollbars(FALSE); + } +# endif + } +#ifdef FEAT_TITLE + /* File may have been changed from 'readonly' to 'noreadonly' */ + if (need_maketitle) + maketitle(); +#endif +} +#endif + +#if defined(USE_IM_CONTROL) || defined(PROTO) +/* + * Save current Input Method status to specified place. + */ + void +im_save_status(psave) + long *psave; +{ + /* Don't save when 'imdisable' is set or "xic" is NULL, IM is always + * disabled then (but might start later). + * Also don't save when inside a mapping, vgetc_im_active has not been set + * then. + * And don't save when the keys were stuffed (e.g., for a "." command). + * And don't save when the GUI is running but our window doesn't have + * input focus (e.g., when a find dialog is open). */ + if (!p_imdisable && KeyTyped && !KeyStuffed +# ifdef FEAT_XIM + && xic != NULL +# endif +# ifdef FEAT_GUI + && (!gui.in_use || gui.in_focus) +# endif + ) + { + /* Do save when IM is on, or IM is off and saved status is on. */ + if (vgetc_im_active) + *psave = B_IMODE_IM; + else if (*psave == B_IMODE_IM) + *psave = B_IMODE_NONE; + } +} +#endif |