Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  *  textbox.c -- implements the text box
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include "dialog.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) static void back_lines(int n);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) static void print_page(WINDOW *win, int height, int width, update_text_fn
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 		       update_text, void *data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) static void print_line(WINDOW *win, int row, int width);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) static char *get_line(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) static void print_position(WINDOW * win);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) static int hscroll;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) static int begin_reached, end_reached, page_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) static char *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) static char *page;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24)  * refresh window content
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) static void refresh_text_box(WINDOW *dialog, WINDOW *box, int boxh, int boxw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 			     int cur_y, int cur_x, update_text_fn update_text,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 			     void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	print_page(box, boxh, boxw, update_text, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	print_position(dialog);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	wmove(dialog, cur_y, cur_x);	/* Restore cursor position */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	wrefresh(dialog);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38)  * Display text from a file in a dialog box.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40)  * keys is a null-terminated array
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41)  * update_text() may not add or remove any '\n' or '\0' in tbuf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) int dialog_textbox(const char *title, char *tbuf, int initial_height,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 		   int initial_width, int *keys, int *_vscroll, int *_hscroll,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 		   update_text_fn update_text, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	int i, x, y, cur_x, cur_y, key = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	int height, width, boxh, boxw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	WINDOW *dialog, *box;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	bool done = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	begin_reached = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	end_reached = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	page_length = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	hscroll = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	buf = tbuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	page = buf;	/* page is pointer to start of page to be displayed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	if (_vscroll && *_vscroll) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 		begin_reached = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 		for (i = 0; i < *_vscroll; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 			get_line();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	if (_hscroll)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 		hscroll = *_hscroll;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) do_resize:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	getmaxyx(stdscr, height, width);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	if (height < TEXTBOX_HEIGTH_MIN || width < TEXTBOX_WIDTH_MIN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 		return -ERRDISPLAYTOOSMALL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	if (initial_height != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 		height = initial_height;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 		if (height > 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 			height -= 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 			height = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	if (initial_width != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 		width = initial_width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 		if (width > 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 			width -= 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 			width = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	/* center dialog box on screen */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	x = (getmaxx(stdscr) - width) / 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	y = (getmaxy(stdscr) - height) / 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	draw_shadow(stdscr, y, x, height, width);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	dialog = newwin(height, width, y, x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	keypad(dialog, TRUE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	/* Create window for box region, used for scrolling text */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	boxh = height - 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	boxw = width - 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	box = subwin(dialog, boxh, boxw, y + 1, x + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	wattrset(box, dlg.dialog.atr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	wbkgdset(box, dlg.dialog.atr & A_COLOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	keypad(box, TRUE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	/* register the new window, along with its borders */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	draw_box(dialog, 0, 0, height, width,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 		 dlg.dialog.atr, dlg.border.atr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	wattrset(dialog, dlg.border.atr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	mvwaddch(dialog, height - 3, 0, ACS_LTEE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	for (i = 0; i < width - 2; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 		waddch(dialog, ACS_HLINE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	wattrset(dialog, dlg.dialog.atr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	wbkgdset(dialog, dlg.dialog.atr & A_COLOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	waddch(dialog, ACS_RTEE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	print_title(dialog, title, width);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	print_button(dialog, " Exit ", height - 2, width / 2 - 4, TRUE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	wnoutrefresh(dialog);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	getyx(dialog, cur_y, cur_x);	/* Save cursor position */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	/* Print first page of text */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	attr_clear(box, boxh, boxw, dlg.dialog.atr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	refresh_text_box(dialog, box, boxh, boxw, cur_y, cur_x, update_text,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 			 data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	while (!done) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 		key = wgetch(dialog);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 		switch (key) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 		case 'E':	/* Exit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 		case 'e':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 		case 'X':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 		case 'x':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 		case 'q':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 		case '\n':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 			done = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 		case 'g':	/* First page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		case KEY_HOME:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 			if (!begin_reached) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 				begin_reached = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 				page = buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 				refresh_text_box(dialog, box, boxh, boxw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 						 cur_y, cur_x, update_text,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 						 data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 		case 'G':	/* Last page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		case KEY_END:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 			end_reached = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 			/* point to last char in buf */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 			page = buf + strlen(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 			back_lines(boxh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 			refresh_text_box(dialog, box, boxh, boxw, cur_y,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 					 cur_x, update_text, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 		case 'K':	/* Previous line */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 		case 'k':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 		case KEY_UP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 			if (begin_reached)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 			back_lines(page_length + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 			refresh_text_box(dialog, box, boxh, boxw, cur_y,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 					 cur_x, update_text, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 		case 'B':	/* Previous page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 		case 'b':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 		case 'u':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 		case KEY_PPAGE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 			if (begin_reached)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 			back_lines(page_length + boxh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 			refresh_text_box(dialog, box, boxh, boxw, cur_y,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 					 cur_x, update_text, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 		case 'J':	/* Next line */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 		case 'j':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 		case KEY_DOWN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 			if (end_reached)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 			back_lines(page_length - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 			refresh_text_box(dialog, box, boxh, boxw, cur_y,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 					 cur_x, update_text, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 		case KEY_NPAGE:	/* Next page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 		case ' ':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 		case 'd':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 			if (end_reached)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 			begin_reached = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 			refresh_text_box(dialog, box, boxh, boxw, cur_y,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 					 cur_x, update_text, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 		case '0':	/* Beginning of line */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 		case 'H':	/* Scroll left */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 		case 'h':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 		case KEY_LEFT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 			if (hscroll <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 			if (key == '0')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 				hscroll = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 			else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 				hscroll--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 			/* Reprint current page to scroll horizontally */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 			back_lines(page_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 			refresh_text_box(dialog, box, boxh, boxw, cur_y,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 					 cur_x, update_text, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 		case 'L':	/* Scroll right */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 		case 'l':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 		case KEY_RIGHT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 			if (hscroll >= MAX_LEN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 			hscroll++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 			/* Reprint current page to scroll horizontally */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 			back_lines(page_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 			refresh_text_box(dialog, box, boxh, boxw, cur_y,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 					 cur_x, update_text, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 		case KEY_ESC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 			if (on_key_esc(dialog) == KEY_ESC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 				done = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 		case KEY_RESIZE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 			back_lines(height);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 			delwin(box);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 			delwin(dialog);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 			on_key_resize();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 			goto do_resize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 		default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 			for (i = 0; keys[i]; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 				if (key == keys[i]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 					done = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 					break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 				}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	delwin(box);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	delwin(dialog);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	if (_vscroll) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 		const char *s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 		s = buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 		*_vscroll = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 		back_lines(page_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 		while (s < page && (s = strchr(s, '\n'))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 			(*_vscroll)++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 			s++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	if (_hscroll)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 		*_hscroll = hscroll;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	return key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264)  * Go back 'n' lines in text. Called by dialog_textbox().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)  * 'page' will be updated to point to the desired line in 'buf'.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) static void back_lines(int n)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	begin_reached = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 	/* Go back 'n' lines */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	for (i = 0; i < n; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 		if (*page == '\0') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 			if (end_reached) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 				end_reached = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 				continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 		if (page == buf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 			begin_reached = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 			return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 		page--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 		do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 			if (page == buf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 				begin_reached = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 				return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 			page--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 		} while (*page != '\n');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 		page++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)  * Print a new page of text.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) static void print_page(WINDOW *win, int height, int width, update_text_fn
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 		       update_text, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 	int i, passed_end = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	if (update_text) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 		char *end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 		for (i = 0; i < height; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 			get_line();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 		end = page;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 		back_lines(height);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 		update_text(buf, page - buf, end - buf, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 	page_length = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 	for (i = 0; i < height; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 		print_line(win, i, width);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 		if (!passed_end)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 			page_length++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 		if (end_reached && !passed_end)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 			passed_end = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	wnoutrefresh(win);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)  * Print a new line of text.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) static void print_line(WINDOW * win, int row, int width)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 	char *line;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 	line = get_line();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 	line += MIN(strlen(line), hscroll);	/* Scroll horizontally */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 	wmove(win, row, 0);	/* move cursor to correct line */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 	waddch(win, ' ');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 	waddnstr(win, line, MIN(strlen(line), width - 2));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 	/* Clear 'residue' of previous line */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) #if OLD_NCURSES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 		int x = getcurx(win);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 		int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 		for (i = 0; i < width - x; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 			waddch(win, ' ');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 	wclrtoeol(win);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)  * Return current line of text. Called by dialog_textbox() and print_line().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353)  * 'page' should point to start of current line before calling, and will be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354)  * updated to point to start of next line.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) static char *get_line(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 	int i = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 	static char line[MAX_LEN + 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 	end_reached = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 	while (*page != '\n') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 		if (*page == '\0') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 			end_reached = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 		} else if (i < MAX_LEN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 			line[i++] = *(page++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 		else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 			/* Truncate lines longer than MAX_LEN characters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 			if (i == MAX_LEN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 				line[i++] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 			page++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 	if (i <= MAX_LEN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 		line[i] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 	if (!end_reached)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 		page++;		/* move past '\n' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 	return line;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384)  * Print current position
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) static void print_position(WINDOW * win)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) 	int percent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 	wattrset(win, dlg.position_indicator.atr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 	wbkgdset(win, dlg.position_indicator.atr & A_COLOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) 	percent = (page - buf) * 100 / strlen(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) 	wmove(win, getmaxy(win) - 3, getmaxx(win) - 9);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) 	wprintw(win, "(%3d%%)", percent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) }