diff options
author | Bram Moolenaar <Bram@vim.org> | 2005-10-04 09:12:31 +0000 |
---|---|---|
committer | Bram Moolenaar <Bram@vim.org> | 2005-10-04 09:12:31 +0000 |
commit | 4b77947252c6f605f0e7baee4db21aea71ec69b9 (patch) | |
tree | 95a17f6c4d3e005d3d4c5469fecc77f955d064d0 /src | |
parent | 8d4f404a7bd4e808ad81bc94ae426404627d6716 (diff) |
updated for version 7.0154
Diffstat (limited to 'src')
-rw-r--r-- | src/popupmenu.c | 301 | ||||
-rw-r--r-- | src/version.h | 4 |
2 files changed, 303 insertions, 2 deletions
diff --git a/src/popupmenu.c b/src/popupmenu.c new file mode 100644 index 0000000000..26c4ae77f3 --- /dev/null +++ b/src/popupmenu.c @@ -0,0 +1,301 @@ +/* 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. + */ + +/* + * popupmenu.c: Popup menu (PUM) + */ +#include "vim.h" + +#if defined(FEAT_INS_EXPAND) || defined(PROTO) + +static char_u **pum_array = NULL; /* items of displayed pum */ +static int pum_size; /* nr of items in "pum_array" */ +static int pum_selected; /* index of selected item or -1 */ +static int pum_first = 0; /* index of top item */ + +static int pum_height; /* nr of displayed pum items */ +static int pum_width; /* width of displayed pum items */ +static int pum_scrollbar; /* TRUE when scrollbar present */ + +static int pum_row; /* top row of pum */ +static int pum_col; /* left column of pum */ + +#define PUM_DEF_HEIGHT 10 +#define PUM_DEF_WIDTH 15 + +/* + * Show the popup menu with items "array[size]". + * "array" must remain valid until pum_undisplay() is called! + * When possible the leftmost character is aligned with screen column "col". + * The menu appears above the screen line "row" or at "row" + "height" - 1. + */ + void +pum_display(array, size, selected, row, height, col) + char_u **array; + int size; + int selected; /* index of initially selected item */ + int row; + int height; + int col; +{ + int w; + int def_width = PUM_DEF_WIDTH; + int max_width = 0; + int i; + + /* + * Figure out the size and position of the pum. + */ + if (size < PUM_DEF_HEIGHT) + pum_height = size; + else + pum_height = PUM_DEF_HEIGHT; + + /* Put the pum below "row" if possible. If there are few lines decide on + * where there is more room. */ + if (row >= cmdline_row - pum_height && row > (cmdline_row - height) / 2) + { + /* pum above "row" */ + if (row >= size) + { + pum_row = row - size; + pum_height = size; + } + else + { + pum_row = 0; + pum_height = row; + } + } + else + { + /* pum below "row" */ + pum_row = row + height; + if (size > cmdline_row - pum_row) + pum_height = cmdline_row - pum_row; + else + pum_height = size; + } + + /* don't display when we only have room for one line */ + if (pum_height <= 1) + return; + + /* Compute the width of the widest match. */ + for (i = 0; i < size; ++i) + { + w = vim_strsize(array[i]); + if (max_width < w) + max_width = w; + } + + /* if there are more items than room we need a scrollbar */ + if (pum_height < size) + { + pum_scrollbar = 1; + ++max_width; + } + else + pum_scrollbar = 0; + + if (def_width < max_width) + def_width = max_width; + + if (col < Columns - PUM_DEF_WIDTH || col < Columns - max_width) + { + /* align pum column with "col" */ + pum_col = col; + pum_width = Columns - pum_col - pum_scrollbar; + if (pum_width > def_width) + pum_width = def_width; + } + else if (Columns < def_width) + { + /* not enough room, will use what we have */ + pum_col = 0; + pum_width = Columns - 1; + } + else + { + if (max_width > PUM_DEF_WIDTH) + max_width = PUM_DEF_WIDTH; /* truncate */ + pum_col = Columns - max_width; + pum_width = max_width - pum_scrollbar; + } + + pum_array = array; + pum_size = size; + + /* Set selected item and redraw. */ + pum_set_selected(selected); +} + +/* + * Redraw the popup menu, using "pum_first" and "pum_selected". + */ + void +pum_redraw() +{ + int row = pum_row; + int col; + int attr_norm = highlight_attr[HLF_PNI]; + int attr_select = highlight_attr[HLF_PSI]; + int attr_scroll = highlight_attr[HLF_PSB]; + int attr_thumb = highlight_attr[HLF_PST]; + int attr; + int i; + int idx; + char_u *s; + char_u *p; + int width, w; + int thumb_pos = 0; + int thumb_heigth = 1; + + if (pum_scrollbar) + { + thumb_heigth = pum_height * pum_height / pum_size; + if (thumb_heigth == 0) + thumb_heigth = 1; + thumb_pos = (pum_first * (pum_height - thumb_heigth) + + (pum_size - pum_height) / 2) + / (pum_size - pum_height); + } + + for (i = 0; i < pum_height; ++i) + { + idx = i + pum_first; + attr = (idx == pum_selected) ? attr_select : attr_norm; + + /* prepend a space if there is room */ + if (pum_col > 0) + screen_putchar(' ', row, pum_col - 1, attr); + + /* Display each entry, use two spaces for a Tab. */ + col = pum_col; + width = 0; + s = NULL; + for (p = pum_array[idx]; ; mb_ptr_adv(p)) + { + if (s == NULL) + s = p; + w = ptr2cells(p); + if (*p == NUL || *p == TAB || width + w > pum_width) + { + /* Display the text that fits or comes before a Tab. */ + screen_puts_len(s, p - s, row, col, attr); + col += width; + + if (*p != TAB) + break; + + /* Display two spaces for a Tab. */ + screen_puts_len((char_u *)" ", 2, row, col, attr); + col += 2; + s = NULL; + width = 0; + } + else + width += w; + } + + screen_fill(row, row + 1, col, pum_col + pum_width, ' ', ' ', attr); + if (pum_scrollbar > 0) + screen_putchar(' ', row, pum_col + pum_width, + i >= thumb_pos && i < thumb_pos + thumb_heigth + ? attr_thumb : attr_scroll); + + ++row; + } +} + +#if 0 /* not used yet */ +/* + * Return the index of the currently selected item. + */ + int +pum_get_selected() +{ + return pum_selected; +} +#endif + +/* + * Set the index of the currently selected item. The menu will scroll when + * necessary. + */ + void +pum_set_selected(n) + int n; +{ + pum_selected = n; + + if (pum_selected >= 0) + { + if (pum_first > pum_selected) + /* scroll down */ + pum_first = pum_selected; + else if (pum_first < pum_selected - pum_height + 1) + /* scroll up */ + pum_first = pum_selected - pum_height + 1; + + if (pum_height > 6) + { + /* Give three lines of context when possible. */ + if (pum_first > pum_selected - 3) + { + /* scroll down */ + pum_first = pum_selected - 3; + if (pum_first < 0) + pum_first = 0; + } + else if (pum_first < pum_selected + 3 - pum_height + 1) + { + /* scroll up */ + pum_first = pum_selected + 3 - pum_height + 1; + } + } + } + + /* Never display more than we have */ + if (pum_first > pum_size - pum_height) + pum_first = pum_size - pum_height; + + pum_redraw(); +} + +/* + * Undisplay the popup menu (later). + */ + void +pum_undisplay() +{ + pum_array = NULL; + redraw_all_later(NOT_VALID); +} + +/* + * Clear the popup menu. Currently only resets the offset to the first + * displayed item. + */ + void +pum_clear() +{ + pum_first = 0; +} + +/* + * Return TRUE if the popup menu is displayed. + */ + int +pum_visible() +{ + return pum_array != NULL; +} + +#endif diff --git a/src/version.h b/src/version.h index 3571032cef..0ccd479f8b 100644 --- a/src/version.h +++ b/src/version.h @@ -36,5 +36,5 @@ #define VIM_VERSION_NODOT "vim70aa" #define VIM_VERSION_SHORT "7.0aa" #define VIM_VERSION_MEDIUM "7.0aa ALPHA" -#define VIM_VERSION_LONG "VIM - Vi IMproved 7.0aa ALPHA (2005 Oct 3)" -#define VIM_VERSION_LONG_DATE "VIM - Vi IMproved 7.0aa ALPHA (2005 Oct 3, compiled " +#define VIM_VERSION_LONG "VIM - Vi IMproved 7.0aa ALPHA (2005 Oct 4)" +#define VIM_VERSION_LONG_DATE "VIM - Vi IMproved 7.0aa ALPHA (2005 Oct 4, compiled " |