mirror of
https://github.com/vim/vim.git
synced 2025-09-30 04:44:14 -04:00
updated for version 7.0b
This commit is contained in:
Bram Moolenaar
565
src/popupmenu.c
565
src/popupmenu.c
@@ -1,565 +0,0 @@
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/* vi:set ts=8 sts=4 sw=4:
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||||
*
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||||
* VIM - Vi IMproved by Bram Moolenaar
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||||
*
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||||
* Do ":help uganda" in Vim to read copying and usage conditions.
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||||
* Do ":help credits" in Vim to see a list of people who contributed.
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||||
* See README.txt for an overview of the Vim source code.
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*/
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/*
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* popupmenu.c: Popup menu (PUM)
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*/
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#include "vim.h"
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#if defined(FEAT_INS_EXPAND) || defined(PROTO)
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static pumitem_T *pum_array = NULL; /* items of displayed pum */
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static int pum_size; /* nr of items in "pum_array" */
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static int pum_selected; /* index of selected item or -1 */
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static int pum_first = 0; /* index of top item */
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static int pum_height; /* nr of displayed pum items */
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static int pum_width; /* width of displayed pum items */
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static int pum_base_width; /* width of pum items base */
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static int pum_kind_width; /* width of pum items kind column */
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static int pum_scrollbar; /* TRUE when scrollbar present */
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static int pum_row; /* top row of pum */
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static int pum_col; /* left column of pum */
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static int pum_do_redraw = FALSE; /* do redraw anyway */
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static int pum_set_selected __ARGS((int n));
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#define PUM_DEF_HEIGHT 10
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#define PUM_DEF_WIDTH 15
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/*
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* Show the popup menu with items "array[size]".
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* "array" must remain valid until pum_undisplay() is called!
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* When possible the leftmost character is aligned with screen column "col".
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* The menu appears above the screen line "row" or at "row" + "height" - 1.
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*/
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void
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pum_display(array, size, selected)
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pumitem_T *array;
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int size;
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int selected; /* index of initially selected item, none if
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out of range */
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{
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int w;
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int def_width;
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int max_width;
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int kind_width;
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int extra_width;
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int i;
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int top_clear;
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int row;
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int height;
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int col;
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int above_row = cmdline_row;
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redo:
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def_width = PUM_DEF_WIDTH;
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max_width = 0;
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kind_width = 0;
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extra_width = 0;
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/* Pretend the pum is already there to avoid that must_redraw is set when
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* 'cuc' is on. */
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pum_array = (pumitem_T *)1;
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validate_cursor_col();
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pum_array = NULL;
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row = curwin->w_cline_row + W_WINROW(curwin);
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height = curwin->w_cline_height;
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col = curwin->w_wcol + W_WINCOL(curwin) - curwin->w_leftcol;
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if (firstwin->w_p_pvw)
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top_clear = firstwin->w_height;
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else
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top_clear = 0;
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/* When the preview window is at the bottom stop just above it. Also
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* avoid drawing over the status line so that it's clear there is a window
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* boundary. */
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if (lastwin->w_p_pvw)
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above_row -= lastwin->w_height + lastwin->w_status_height + 1;
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/*
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* Figure out the size and position of the pum.
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*/
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if (size < PUM_DEF_HEIGHT)
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pum_height = size;
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else
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pum_height = PUM_DEF_HEIGHT;
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if (p_ph > 0 && pum_height > p_ph)
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pum_height = p_ph;
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/* Put the pum below "row" if possible. If there are few lines decide on
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* where there is more room. */
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if (row >= above_row - pum_height
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&& row > (above_row - top_clear - height) / 2)
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{
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/* pum above "row" */
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if (row >= size)
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{
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pum_row = row - size;
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pum_height = size;
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}
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else
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{
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pum_row = 0;
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pum_height = row;
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}
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if (p_ph > 0 && pum_height > p_ph)
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{
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pum_row += pum_height - p_ph;
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pum_height = p_ph;
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}
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}
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else
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{
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/* pum below "row" */
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pum_row = row + height;
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if (size > above_row - pum_row)
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pum_height = above_row - pum_row;
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else
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pum_height = size;
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if (p_ph > 0 && pum_height > p_ph)
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pum_height = p_ph;
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}
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/* don't display when we only have room for one line */
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if (pum_height < 1 || (pum_height == 1 && size > 1))
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return;
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/* If there is a preview window at the top avoid drawing over it. */
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if (firstwin->w_p_pvw
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&& pum_row < firstwin->w_height
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&& pum_height > firstwin->w_height + 4)
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{
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pum_row += firstwin->w_height;
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pum_height -= firstwin->w_height;
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}
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/* Compute the width of the widest match and the widest extra. */
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for (i = 0; i < size; ++i)
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{
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w = vim_strsize(array[i].pum_text);
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if (max_width < w)
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max_width = w;
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if (array[i].pum_kind != NULL)
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{
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w = vim_strsize(array[i].pum_kind) + 1;
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if (kind_width < w)
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kind_width = w;
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}
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if (array[i].pum_extra != NULL)
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{
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w = vim_strsize(array[i].pum_extra) + 1;
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if (extra_width < w)
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extra_width = w;
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}
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}
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pum_base_width = max_width;
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pum_kind_width = kind_width;
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/* if there are more items than room we need a scrollbar */
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if (pum_height < size)
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{
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pum_scrollbar = 1;
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++max_width;
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}
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else
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pum_scrollbar = 0;
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if (def_width < max_width)
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def_width = max_width;
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if (col < Columns - PUM_DEF_WIDTH || col < Columns - max_width)
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{
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/* align pum column with "col" */
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pum_col = col;
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pum_width = Columns - pum_col - pum_scrollbar;
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if (pum_width > max_width + kind_width + extra_width + 1
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&& pum_width > PUM_DEF_WIDTH)
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{
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pum_width = max_width + kind_width + extra_width + 1;
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if (pum_width < PUM_DEF_WIDTH)
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pum_width = PUM_DEF_WIDTH;
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}
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}
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else if (Columns < def_width)
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{
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/* not enough room, will use what we have */
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pum_col = 0;
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pum_width = Columns - 1;
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}
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else
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{
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if (max_width > PUM_DEF_WIDTH)
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max_width = PUM_DEF_WIDTH; /* truncate */
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pum_col = Columns - max_width;
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pum_width = max_width - pum_scrollbar;
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}
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pum_array = array;
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pum_size = size;
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/* Set selected item and redraw. If the window size changed need to redo
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* the positioning. */
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if (pum_set_selected(selected))
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goto redo;
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}
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/*
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* Redraw the popup menu, using "pum_first" and "pum_selected".
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*/
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void
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pum_redraw()
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{
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int row = pum_row;
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int col;
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int attr_norm = highlight_attr[HLF_PNI];
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int attr_select = highlight_attr[HLF_PSI];
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int attr_scroll = highlight_attr[HLF_PSB];
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int attr_thumb = highlight_attr[HLF_PST];
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int attr;
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int i;
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int idx;
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char_u *s;
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char_u *p = NULL;
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int totwidth, width, w;
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int thumb_pos = 0;
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int thumb_heigth = 1;
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int round;
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int n;
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if (pum_scrollbar)
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{
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thumb_heigth = pum_height * pum_height / pum_size;
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if (thumb_heigth == 0)
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thumb_heigth = 1;
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thumb_pos = (pum_first * (pum_height - thumb_heigth)
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+ (pum_size - pum_height) / 2)
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/ (pum_size - pum_height);
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}
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for (i = 0; i < pum_height; ++i)
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{
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idx = i + pum_first;
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attr = (idx == pum_selected) ? attr_select : attr_norm;
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/* prepend a space if there is room */
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if (pum_col > 0)
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screen_putchar(' ', row, pum_col - 1, attr);
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/* Display each entry, use two spaces for a Tab.
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* Do this 3 times: For the main text, kind and extra info */
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col = pum_col;
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totwidth = 0;
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for (round = 1; round <= 3; ++round)
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{
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width = 0;
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s = NULL;
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switch (round)
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{
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case 1: p = pum_array[idx].pum_text; break;
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case 2: p = pum_array[idx].pum_kind; break;
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case 3: p = pum_array[idx].pum_extra; break;
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}
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if (p != NULL)
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for ( ; ; mb_ptr_adv(p))
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{
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if (s == NULL)
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s = p;
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w = ptr2cells(p);
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if (*p == NUL || *p == TAB || totwidth + w > pum_width)
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{
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/* Display the text that fits or comes before a Tab. */
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screen_puts_len(s, p - s, row, col, attr);
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col += width;
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if (*p != TAB)
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break;
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/* Display two spaces for a Tab. */
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screen_puts_len((char_u *)" ", 2, row, col, attr);
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col += 2;
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totwidth += 2;
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s = NULL; /* start text at next char */
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width = 0;
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}
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else
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width += w;
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}
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if (round > 1)
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n = pum_kind_width + 1;
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else
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n = 1;
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|
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/* Stop when there is nothing more to display. */
|
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if (round == 3
|
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|| (round == 2 && pum_array[idx].pum_extra == NULL)
|
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|| (round == 1 && pum_array[idx].pum_kind == NULL
|
||||
&& pum_array[idx].pum_extra == NULL)
|
||||
|| pum_base_width + n >= pum_width)
|
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break;
|
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screen_fill(row, row + 1, col, pum_col + pum_base_width + n,
|
||||
' ', ' ', attr);
|
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col = pum_col + pum_base_width + n;
|
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totwidth = pum_base_width + n;
|
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}
|
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|
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screen_fill(row, row + 1, col, pum_col + pum_width, ' ', ' ', attr);
|
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if (pum_scrollbar > 0)
|
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screen_putchar(' ', row, pum_col + pum_width,
|
||||
i >= thumb_pos && i < thumb_pos + thumb_heigth
|
||||
? attr_thumb : attr_scroll);
|
||||
|
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++row;
|
||||
}
|
||||
}
|
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|
||||
#if 0 /* not used yet */
|
||||
/*
|
||||
* Return the index of the currently selected item.
|
||||
*/
|
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int
|
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pum_get_selected()
|
||||
{
|
||||
return pum_selected;
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Set the index of the currently selected item. The menu will scroll when
|
||||
* necessary. When "n" is out of range don't scroll.
|
||||
* Returns TRUE when the window was resized and the location of the popup menu
|
||||
* must be recomputed.
|
||||
*/
|
||||
static int
|
||||
pum_set_selected(n)
|
||||
int n;
|
||||
{
|
||||
int resized = FALSE;
|
||||
int context = pum_height / 2;
|
||||
|
||||
pum_selected = n;
|
||||
|
||||
if (pum_selected >= 0 && pum_selected < pum_size)
|
||||
{
|
||||
if (pum_first > pum_selected - 4)
|
||||
{
|
||||
/* scroll down; when we did a jump it's probably a PageUp then
|
||||
* scroll a whole page */
|
||||
if (pum_first > pum_selected - 2)
|
||||
{
|
||||
pum_first -= pum_height - 2;
|
||||
if (pum_first < 0)
|
||||
pum_first = 0;
|
||||
else if (pum_first > pum_selected)
|
||||
pum_first = pum_selected;
|
||||
}
|
||||
else
|
||||
pum_first = pum_selected;
|
||||
}
|
||||
else if (pum_first < pum_selected - pum_height + 5)
|
||||
{
|
||||
/* scroll up; when we did a jump it's probably a PageDown then
|
||||
* scroll a whole page */
|
||||
if (pum_first < pum_selected - pum_height + 1 + 2)
|
||||
{
|
||||
pum_first += pum_height - 2;
|
||||
if (pum_first < pum_selected - pum_height + 1)
|
||||
pum_first = pum_selected - pum_height + 1;
|
||||
}
|
||||
else
|
||||
pum_first = pum_selected - pum_height + 1;
|
||||
}
|
||||
|
||||
/* Give a few lines of context when possible. */
|
||||
if (context > 3)
|
||||
context = 3;
|
||||
if (pum_height > 2)
|
||||
{
|
||||
if (pum_first > pum_selected - context)
|
||||
{
|
||||
/* scroll down */
|
||||
pum_first = pum_selected - context;
|
||||
if (pum_first < 0)
|
||||
pum_first = 0;
|
||||
}
|
||||
else if (pum_first < pum_selected + context - pum_height + 1)
|
||||
{
|
||||
/* scroll up */
|
||||
pum_first = pum_selected + context - pum_height + 1;
|
||||
}
|
||||
}
|
||||
|
||||
#if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
|
||||
/* Show extra info in the preview window if there is something and
|
||||
* 'completeopt' contains "preview". */
|
||||
if (pum_array[pum_selected].pum_info != NULL
|
||||
&& vim_strchr(p_cot, 'p') != NULL)
|
||||
{
|
||||
win_T *curwin_save = curwin;
|
||||
int res = OK;
|
||||
|
||||
/* Open a preview window. 3 lines by default. */
|
||||
g_do_tagpreview = 3;
|
||||
resized = prepare_tagpreview();
|
||||
g_do_tagpreview = 0;
|
||||
|
||||
if (curwin->w_p_pvw)
|
||||
{
|
||||
if (curbuf->b_fname == NULL
|
||||
&& curbuf->b_p_bt[0] == 'n' && curbuf->b_p_bt[2] == 'f'
|
||||
&& curbuf->b_p_bh[0] == 'w')
|
||||
{
|
||||
/* Already a "wipeout" buffer, make it empty. */
|
||||
while (!bufempty())
|
||||
ml_delete((linenr_T)1, FALSE);
|
||||
}
|
||||
else if ((res = do_ecmd(0, NULL, NULL, NULL, ECMD_ONE, 0))
|
||||
== OK)
|
||||
{
|
||||
/* Edit a new, empty buffer. Set options for a "wipeout"
|
||||
* buffer. */
|
||||
set_option_value((char_u *)"swf", 0L, NULL, OPT_LOCAL);
|
||||
set_option_value((char_u *)"bt", 0L, (char_u *)"nofile",
|
||||
OPT_LOCAL);
|
||||
set_option_value((char_u *)"bh", 0L, (char_u *)"wipe",
|
||||
OPT_LOCAL);
|
||||
set_option_value((char_u *)"diff", 0L, (char_u *)"",
|
||||
OPT_LOCAL);
|
||||
}
|
||||
if (res == OK)
|
||||
{
|
||||
char_u *p, *e;
|
||||
linenr_T lnum = 0;
|
||||
|
||||
for (p = pum_array[pum_selected].pum_info; *p != NUL; )
|
||||
{
|
||||
e = vim_strchr(p, '\n');
|
||||
if (e == NULL)
|
||||
{
|
||||
ml_append(lnum++, p, 0, FALSE);
|
||||
break;
|
||||
}
|
||||
else
|
||||
{
|
||||
*e = NUL;
|
||||
ml_append(lnum++, p, e - p + 1, FALSE);
|
||||
*e = '\n';
|
||||
p = e + 1;
|
||||
}
|
||||
}
|
||||
|
||||
/* Increase the height of the preview window to show the
|
||||
* text, but no more than 'previewheight' lines. */
|
||||
if (lnum > p_pvh)
|
||||
lnum = p_pvh;
|
||||
if (curwin->w_height < lnum)
|
||||
{
|
||||
win_setheight((int)lnum);
|
||||
resized = TRUE;
|
||||
}
|
||||
|
||||
curbuf->b_changed = 0;
|
||||
curbuf->b_p_ma = FALSE;
|
||||
curwin->w_cursor.lnum = 0;
|
||||
curwin->w_cursor.col = 0;
|
||||
|
||||
if (curwin != curwin_save && win_valid(curwin_save))
|
||||
{
|
||||
/* Return cursor to where we were */
|
||||
validate_cursor();
|
||||
redraw_later(SOME_VALID);
|
||||
|
||||
/* When the preview window was resized we need to
|
||||
* update the view on the buffer. Only go back to
|
||||
* the window when needed, otherwise it will always be
|
||||
* redraw. */
|
||||
if (resized)
|
||||
{
|
||||
win_enter(curwin_save, TRUE);
|
||||
update_topline();
|
||||
}
|
||||
|
||||
/* Update the screen before drawing the popup menu.
|
||||
* Enable updating the status lines. */
|
||||
pum_do_redraw = TRUE;
|
||||
update_screen(0);
|
||||
pum_do_redraw = FALSE;
|
||||
|
||||
if (win_valid(curwin_save))
|
||||
win_enter(curwin_save, TRUE);
|
||||
|
||||
/* May need to update the screen again when there are
|
||||
* autocommands involved. */
|
||||
pum_do_redraw = TRUE;
|
||||
update_screen(0);
|
||||
pum_do_redraw = FALSE;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
/* Never display more than we have */
|
||||
if (pum_first > pum_size - pum_height)
|
||||
pum_first = pum_size - pum_height;
|
||||
|
||||
if (!resized)
|
||||
pum_redraw();
|
||||
|
||||
return resized;
|
||||
}
|
||||
|
||||
/*
|
||||
* Undisplay the popup menu (later).
|
||||
*/
|
||||
void
|
||||
pum_undisplay()
|
||||
{
|
||||
pum_array = NULL;
|
||||
redraw_all_later(SOME_VALID);
|
||||
status_redraw_all();
|
||||
}
|
||||
|
||||
/*
|
||||
* 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.
|
||||
* Overruled when "pum_do_redraw" is set, used to redraw the status lines.
|
||||
*/
|
||||
int
|
||||
pum_visible()
|
||||
{
|
||||
return !pum_do_redraw && pum_array != NULL;
|
||||
}
|
||||
|
||||
/*
|
||||
* Return the height of the popup menu, the number of entries visible.
|
||||
* Only valid when pum_visible() returns TRUE!
|
||||
*/
|
||||
int
|
||||
pum_get_height()
|
||||
{
|
||||
return pum_height;
|
||||
}
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user