diff options
Diffstat (limited to 'window-choose.c')
| -rw-r--r-- | window-choose.c | 312 |
1 files changed, 312 insertions, 0 deletions
diff --git a/window-choose.c b/window-choose.c new file mode 100644 index 00000000..b753cb53 --- /dev/null +++ b/window-choose.c @@ -0,0 +1,312 @@ +/* $Id: window-choose.c,v 1.1 2009-01-15 19:27:31 nicm Exp $ */ + +/* + * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER + * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <sys/types.h> + +#include <string.h> + +#include "tmux.h" + +struct screen *window_choose_init(struct window_pane *); +void window_choose_free(struct window_pane *); +void window_choose_resize(struct window_pane *, u_int, u_int); +void window_choose_key(struct window_pane *, struct client *, int); + +void window_choose_redraw_screen(struct window_pane *); +void window_choose_write_line( + struct window_pane *, struct screen_write_ctx *, u_int); + +void window_choose_scroll_up(struct window_pane *); +void window_choose_scroll_down(struct window_pane *); + +const struct window_mode window_choose_mode = { + window_choose_init, + window_choose_free, + window_choose_resize, + window_choose_key, + NULL +}; + +struct window_choose_mode_item { + char *name; + int idx; +}; + +struct window_choose_mode_data { + struct screen screen; + + ARRAY_DECL(, struct window_choose_mode_item) list; + u_int top; + u_int selected; + + void (*callback)(void *, int); + void *data; +}; + +void +window_choose_vadd(struct window_pane *wp, int idx, const char *fmt, va_list ap) +{ + struct window_choose_mode_data *data = wp->modedata; + struct window_choose_mode_item *item; + + ARRAY_EXPAND(&data->list, 1); + item = &ARRAY_LAST(&data->list); + xvasprintf(&item->name, fmt, ap); + item->idx = idx; +} + +void printflike3 +window_choose_add(struct window_pane *wp, int idx, const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + window_choose_vadd(wp, idx, fmt, ap); + va_end(ap); +} + +void +window_choose_ready(struct window_pane *wp, + u_int cur, void (*callback)(void *, int), void *cdata) +{ + struct window_choose_mode_data *data = wp->modedata; + struct screen *s = &data->screen; + + data->selected = cur; + if (data->selected > screen_size_y(s) - 1) + data->top = ARRAY_LENGTH(&data->list) - screen_size_y(s); + + data->callback = callback; + data->data = cdata; + + window_choose_redraw_screen(wp); +} + +struct screen * +window_choose_init(struct window_pane *wp) +{ + struct window_choose_mode_data *data; + struct screen *s; + + wp->modedata = data = xmalloc(sizeof *data); + data->callback = NULL; + ARRAY_INIT(&data->list); + data->top = 0; + + s = &data->screen; + screen_init(s, screen_size_x(&wp->base), screen_size_y(&wp->base), 0); + s->mode &= ~MODE_CURSOR; + + return (s); +} + +void +window_choose_free(struct window_pane *wp) +{ + struct window_choose_mode_data *data = wp->modedata; + u_int i; + + for (i = 0; i < ARRAY_LENGTH(&data->list); i++) + xfree(ARRAY_ITEM(&data->list, i).name); + ARRAY_FREE(&data->list); + + screen_free(&data->screen); + xfree(data); +} + +void +window_choose_resize(struct window_pane *wp, u_int sx, u_int sy) +{ + struct window_choose_mode_data *data = wp->modedata; + struct screen *s = &data->screen; + + data->top = 0; + if (data->selected > sy - 1) + data->top = data->selected - (sy - 1); + + screen_resize(s, sx, sy); + window_choose_redraw_screen(wp); +} + +void +window_choose_key(struct window_pane *wp, unused struct client *c, int key) +{ + struct window_choose_mode_data *data = wp->modedata; + struct screen *s = &data->screen; + struct screen_write_ctx ctx; + int table; + u_int items; + + items = ARRAY_LENGTH(&data->list); + + table = options_get_number(&wp->window->options, "mode-keys"); + switch (mode_key_lookup(table, key)) { + case MODEKEY_QUIT: + data->callback(data->data, -1); + window_pane_reset_mode(wp); + break; + case MODEKEY_ENTER: + data->callback(data->data, data->selected); + window_pane_reset_mode(wp); + break; + case MODEKEY_UP: + if (items == 0) + break; + if (data->selected == 0) { + data->selected = items - 1; + if (data->selected > screen_size_y(s) - 1) + data->top = items - screen_size_y(s); + window_choose_redraw_screen(wp); + break; + } + data->selected--; + if (data->selected < data->top) + window_choose_scroll_up(wp); + else { + screen_write_start(&ctx, wp, NULL); + window_choose_write_line( + wp, &ctx, data->selected - data->top); + window_choose_write_line( + wp, &ctx, data->selected + 1 - data->top); + screen_write_stop(&ctx); + } + break; + case MODEKEY_DOWN: + if (items == 0) + break; + if (data->selected == items - 1) { + data->selected = 0; + if (data->top != 0) + data->top = 0; + window_choose_redraw_screen(wp); + break; + } + data->selected++; + if (data->selected >= data->top + screen_size_y(&data->screen)) + window_choose_scroll_down(wp); + else { + screen_write_start(&ctx, wp, NULL); + window_choose_write_line( + wp, &ctx, data->selected - data->top); + window_choose_write_line( + wp, &ctx, data->selected - 1 - data->top); + screen_write_stop(&ctx); + } + break; + case MODEKEY_PPAGE: + if (data->top < screen_size_y(s)) + data->top = 0; + else + data->top -= screen_size_y(s); + window_choose_redraw_screen(wp); + break; + case MODEKEY_NONE: + if (key != ' ') + break; + /* FALLTHROUGH */ + case MODEKEY_NPAGE: + if (data->top + screen_size_y(s) > ARRAY_LENGTH(&data->list)) + data->top = ARRAY_LENGTH(&data->list); + else + data->top += screen_size_y(s); + window_choose_redraw_screen(wp); + break; + } +} + +void +window_choose_write_line( + struct window_pane *wp, struct screen_write_ctx *ctx, u_int py) +{ + struct window_choose_mode_data *data = wp->modedata; + struct window_choose_mode_item *item; + struct screen *s = &data->screen; + struct grid_cell gc; + + if (data->callback == NULL) + fatalx("called before callback assigned"); + + memcpy(&gc, &grid_default_cell, sizeof gc); + if (data->selected == data->top + py) { + gc.fg = options_get_number(&wp->window->options, "mode-fg"); + gc.bg = options_get_number(&wp->window->options, "mode-bg"); + } + + screen_write_cursormove(ctx, 0, py); + if (data->top + py < ARRAY_LENGTH(&data->list)) { + item = &ARRAY_ITEM(&data->list, data->top + py); + screen_write_puts( + ctx, &gc, "%.*s", (int) screen_size_x(s), item->name); + } + while (s->cx < screen_size_x(s)) + screen_write_putc(ctx, &gc, ' '); + +} + +void +window_choose_redraw_screen(struct window_pane *wp) +{ + struct window_choose_mode_data *data = wp->modedata; + struct screen *s = &data->screen; + struct screen_write_ctx ctx; + u_int i; + + screen_write_start(&ctx, wp, NULL); + for (i = 0; i < screen_size_y(s); i++) + window_choose_write_line(wp, &ctx, i); + screen_write_stop(&ctx); +} + +void +window_choose_scroll_up(struct window_pane *wp) +{ + struct window_choose_mode_data *data = wp->modedata; + struct screen_write_ctx ctx; + + if (data->top == 0) + return; + data->top--; + + screen_write_start(&ctx, wp, NULL); + screen_write_cursormove(&ctx, 0, 0); + screen_write_insertline(&ctx, 1); + window_choose_write_line(wp, &ctx, 0); + if (screen_size_y(&data->screen) > 1) + window_choose_write_line(wp, &ctx, 1); + screen_write_stop(&ctx); +} + +void +window_choose_scroll_down(struct window_pane *wp) +{ + struct window_choose_mode_data *data = wp->modedata; + struct screen *s = &data->screen; + struct screen_write_ctx ctx; + + if (data->top >= ARRAY_LENGTH(&data->list)) + return; + data->top++; + + screen_write_start(&ctx, wp, NULL); + screen_write_cursormove(&ctx, 0, 0); + screen_write_deleteline(&ctx, 1); + window_choose_write_line(wp, &ctx, screen_size_y(s) - 1); + if (screen_size_y(&data->screen) > 1) + window_choose_write_line(wp, &ctx, screen_size_y(s) - 2); + screen_write_stop(&ctx); +} |