1*86d7f5d3SJohn Marino /*
2*86d7f5d3SJohn Marino * Copyright (c)2004 Cat's Eye Technologies. All rights reserved.
3*86d7f5d3SJohn Marino *
4*86d7f5d3SJohn Marino * Redistribution and use in source and binary forms, with or without
5*86d7f5d3SJohn Marino * modification, are permitted provided that the following conditions
6*86d7f5d3SJohn Marino * are met:
7*86d7f5d3SJohn Marino *
8*86d7f5d3SJohn Marino * Redistributions of source code must retain the above copyright
9*86d7f5d3SJohn Marino * notice, this list of conditions and the following disclaimer.
10*86d7f5d3SJohn Marino *
11*86d7f5d3SJohn Marino * Redistributions in binary form must reproduce the above copyright
12*86d7f5d3SJohn Marino * notice, this list of conditions and the following disclaimer in
13*86d7f5d3SJohn Marino * the documentation and/or other materials provided with the
14*86d7f5d3SJohn Marino * distribution.
15*86d7f5d3SJohn Marino *
16*86d7f5d3SJohn Marino * Neither the name of Cat's Eye Technologies nor the names of its
17*86d7f5d3SJohn Marino * contributors may be used to endorse or promote products derived
18*86d7f5d3SJohn Marino * from this software without specific prior written permission.
19*86d7f5d3SJohn Marino *
20*86d7f5d3SJohn Marino * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21*86d7f5d3SJohn Marino * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22*86d7f5d3SJohn Marino * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23*86d7f5d3SJohn Marino * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24*86d7f5d3SJohn Marino * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
25*86d7f5d3SJohn Marino * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26*86d7f5d3SJohn Marino * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
27*86d7f5d3SJohn Marino * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28*86d7f5d3SJohn Marino * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
29*86d7f5d3SJohn Marino * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30*86d7f5d3SJohn Marino * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
31*86d7f5d3SJohn Marino * OF THE POSSIBILITY OF SUCH DAMAGE.
32*86d7f5d3SJohn Marino */
33*86d7f5d3SJohn Marino
34*86d7f5d3SJohn Marino /*
35*86d7f5d3SJohn Marino * curses_util.c
36*86d7f5d3SJohn Marino * $Id: curses_util.c,v 1.7 2005/02/08 07:49:03 cpressey Exp $
37*86d7f5d3SJohn Marino */
38*86d7f5d3SJohn Marino
39*86d7f5d3SJohn Marino #include <ctype.h>
40*86d7f5d3SJohn Marino #include <ncurses.h>
41*86d7f5d3SJohn Marino #include <panel.h>
42*86d7f5d3SJohn Marino #include <stdio.h>
43*86d7f5d3SJohn Marino #include <stdlib.h>
44*86d7f5d3SJohn Marino #include <string.h>
45*86d7f5d3SJohn Marino
46*86d7f5d3SJohn Marino #include "curses_util.h"
47*86d7f5d3SJohn Marino
48*86d7f5d3SJohn Marino unsigned int ymax, xmax;
49*86d7f5d3SJohn Marino int monochrome = 1;
50*86d7f5d3SJohn Marino int allocated_colors = 0;
51*86d7f5d3SJohn Marino
52*86d7f5d3SJohn Marino struct curses_attr {
53*86d7f5d3SJohn Marino int pair_no;
54*86d7f5d3SJohn Marino int bold;
55*86d7f5d3SJohn Marino };
56*86d7f5d3SJohn Marino
57*86d7f5d3SJohn Marino struct curses_attr colors_tab[CURSES_COLORS_MAX];
58*86d7f5d3SJohn Marino
59*86d7f5d3SJohn Marino int colors[8] = {
60*86d7f5d3SJohn Marino COLOR_BLACK,
61*86d7f5d3SJohn Marino COLOR_RED,
62*86d7f5d3SJohn Marino COLOR_GREEN,
63*86d7f5d3SJohn Marino COLOR_YELLOW,
64*86d7f5d3SJohn Marino COLOR_BLUE,
65*86d7f5d3SJohn Marino COLOR_MAGENTA,
66*86d7f5d3SJohn Marino COLOR_CYAN,
67*86d7f5d3SJohn Marino COLOR_WHITE
68*86d7f5d3SJohn Marino };
69*86d7f5d3SJohn Marino
70*86d7f5d3SJohn Marino /*
71*86d7f5d3SJohn Marino * If there is an established color pair with the given fg and bg
72*86d7f5d3SJohn Marino * colors, return it. Else allocate a new pair with these colors
73*86d7f5d3SJohn Marino * and return that.
74*86d7f5d3SJohn Marino */
75*86d7f5d3SJohn Marino static int
curses_colors_find(int fg,int bg)76*86d7f5d3SJohn Marino curses_colors_find(int fg, int bg)
77*86d7f5d3SJohn Marino {
78*86d7f5d3SJohn Marino int pair_no;
79*86d7f5d3SJohn Marino short fge, bge;
80*86d7f5d3SJohn Marino
81*86d7f5d3SJohn Marino for (pair_no = 0;
82*86d7f5d3SJohn Marino pair_no <= allocated_colors && pair_no < COLOR_PAIRS;
83*86d7f5d3SJohn Marino pair_no++) {
84*86d7f5d3SJohn Marino pair_content(pair_no, &fge, &bge);
85*86d7f5d3SJohn Marino if (fg == fge && bg == bge)
86*86d7f5d3SJohn Marino return(pair_no);
87*86d7f5d3SJohn Marino }
88*86d7f5d3SJohn Marino
89*86d7f5d3SJohn Marino /*
90*86d7f5d3SJohn Marino * No pair was found, allocate a new one.
91*86d7f5d3SJohn Marino */
92*86d7f5d3SJohn Marino if (allocated_colors < (COLOR_PAIRS-1)) {
93*86d7f5d3SJohn Marino allocated_colors++;
94*86d7f5d3SJohn Marino init_pair(allocated_colors, fg, bg);
95*86d7f5d3SJohn Marino return(allocated_colors);
96*86d7f5d3SJohn Marino }
97*86d7f5d3SJohn Marino
98*86d7f5d3SJohn Marino /*
99*86d7f5d3SJohn Marino * No space to allocate a new one, return error.
100*86d7f5d3SJohn Marino */
101*86d7f5d3SJohn Marino return(-1);
102*86d7f5d3SJohn Marino }
103*86d7f5d3SJohn Marino
104*86d7f5d3SJohn Marino static void
curses_colors_cfg(int role,int fg,int bg,int bold)105*86d7f5d3SJohn Marino curses_colors_cfg(int role, int fg, int bg, int bold)
106*86d7f5d3SJohn Marino {
107*86d7f5d3SJohn Marino int pair_no;
108*86d7f5d3SJohn Marino
109*86d7f5d3SJohn Marino pair_no = curses_colors_find(fg, bg);
110*86d7f5d3SJohn Marino if (pair_no != -1) {
111*86d7f5d3SJohn Marino colors_tab[role].pair_no = pair_no;
112*86d7f5d3SJohn Marino colors_tab[role].bold = bold;
113*86d7f5d3SJohn Marino } else {
114*86d7f5d3SJohn Marino colors_tab[role].pair_no = 0;
115*86d7f5d3SJohn Marino colors_tab[role].bold = bold;
116*86d7f5d3SJohn Marino }
117*86d7f5d3SJohn Marino }
118*86d7f5d3SJohn Marino
119*86d7f5d3SJohn Marino void
curses_colors_init(int force_monochrome)120*86d7f5d3SJohn Marino curses_colors_init(int force_monochrome)
121*86d7f5d3SJohn Marino {
122*86d7f5d3SJohn Marino if (!force_monochrome) {
123*86d7f5d3SJohn Marino if (has_colors()) {
124*86d7f5d3SJohn Marino monochrome = 0;
125*86d7f5d3SJohn Marino start_color();
126*86d7f5d3SJohn Marino }
127*86d7f5d3SJohn Marino }
128*86d7f5d3SJohn Marino
129*86d7f5d3SJohn Marino /*
130*86d7f5d3SJohn Marino * By default, make it look kinda like the default libdialog.
131*86d7f5d3SJohn Marino */
132*86d7f5d3SJohn Marino curses_colors_cfg(CURSES_COLORS_NORMAL, COLOR_BLACK, COLOR_GREY, 0);
133*86d7f5d3SJohn Marino curses_colors_cfg(CURSES_COLORS_BACKDROP, COLOR_WHITE, COLOR_BLUE, 0);
134*86d7f5d3SJohn Marino curses_colors_cfg(CURSES_COLORS_MENUBAR, COLOR_BLACK, COLOR_GREY, 0);
135*86d7f5d3SJohn Marino curses_colors_cfg(CURSES_COLORS_STATUSBAR, COLOR_BLACK, COLOR_GREY, 0);
136*86d7f5d3SJohn Marino curses_colors_cfg(CURSES_COLORS_BORDER, COLOR_WHITE, COLOR_GREY, 1);
137*86d7f5d3SJohn Marino curses_colors_cfg(CURSES_COLORS_FORMTITLE, COLOR_YELLOW, COLOR_GREY, 1);
138*86d7f5d3SJohn Marino curses_colors_cfg(CURSES_COLORS_LABEL, COLOR_BLACK, COLOR_GREY, 0);
139*86d7f5d3SJohn Marino curses_colors_cfg(CURSES_COLORS_CONTROL, COLOR_BLACK, COLOR_GREY, 0);
140*86d7f5d3SJohn Marino curses_colors_cfg(CURSES_COLORS_TEXT, COLOR_BLACK, COLOR_GREY, 0);
141*86d7f5d3SJohn Marino curses_colors_cfg(CURSES_COLORS_FOCUS, COLOR_WHITE, COLOR_BLUE, 1);
142*86d7f5d3SJohn Marino curses_colors_cfg(CURSES_COLORS_SCROLLAREA,COLOR_GREY, COLOR_BLACK, 0);
143*86d7f5d3SJohn Marino curses_colors_cfg(CURSES_COLORS_SCROLLBAR, COLOR_WHITE, COLOR_BLUE, 1);
144*86d7f5d3SJohn Marino curses_colors_cfg(CURSES_COLORS_ACCEL, COLOR_WHITE, COLOR_GREY, 1);
145*86d7f5d3SJohn Marino curses_colors_cfg(CURSES_COLORS_ACCELFOCUS,COLOR_YELLOW, COLOR_BLUE, 1);
146*86d7f5d3SJohn Marino }
147*86d7f5d3SJohn Marino
148*86d7f5d3SJohn Marino void
curses_colors_set(WINDOW * w,int a)149*86d7f5d3SJohn Marino curses_colors_set(WINDOW *w, int a)
150*86d7f5d3SJohn Marino {
151*86d7f5d3SJohn Marino if (!monochrome)
152*86d7f5d3SJohn Marino wattrset(w, COLOR_PAIR(colors_tab[a].pair_no));
153*86d7f5d3SJohn Marino if (colors_tab[a].bold)
154*86d7f5d3SJohn Marino wattron(w, A_BOLD);
155*86d7f5d3SJohn Marino else
156*86d7f5d3SJohn Marino wattroff(w, A_BOLD);
157*86d7f5d3SJohn Marino }
158*86d7f5d3SJohn Marino
159*86d7f5d3SJohn Marino void
curses_window_blank(WINDOW * w)160*86d7f5d3SJohn Marino curses_window_blank(WINDOW *w)
161*86d7f5d3SJohn Marino {
162*86d7f5d3SJohn Marino unsigned int i;
163*86d7f5d3SJohn Marino
164*86d7f5d3SJohn Marino for (i = 0; i <= ymax; i++) {
165*86d7f5d3SJohn Marino wmove(w, i, 0);
166*86d7f5d3SJohn Marino whline(w, ' ', xmax);
167*86d7f5d3SJohn Marino }
168*86d7f5d3SJohn Marino
169*86d7f5d3SJohn Marino wrefresh(w);
170*86d7f5d3SJohn Marino }
171*86d7f5d3SJohn Marino
172*86d7f5d3SJohn Marino void
curses_frame_draw(int x,int y,int width,int height)173*86d7f5d3SJohn Marino curses_frame_draw(int x, int y, int width, int height)
174*86d7f5d3SJohn Marino {
175*86d7f5d3SJohn Marino int i;
176*86d7f5d3SJohn Marino
177*86d7f5d3SJohn Marino mvaddch(y, x, ACS_ULCORNER);
178*86d7f5d3SJohn Marino hline(ACS_HLINE, width - 2);
179*86d7f5d3SJohn Marino mvaddch(y, x + width - 1, ACS_URCORNER);
180*86d7f5d3SJohn Marino
181*86d7f5d3SJohn Marino mvaddch(y + height - 1, x, ACS_LLCORNER);
182*86d7f5d3SJohn Marino hline(ACS_HLINE, width - 2);
183*86d7f5d3SJohn Marino mvaddch(y + height - 1, x + width - 1, ACS_LRCORNER);
184*86d7f5d3SJohn Marino
185*86d7f5d3SJohn Marino move(y + 1, x);
186*86d7f5d3SJohn Marino vline(ACS_VLINE, height - 2);
187*86d7f5d3SJohn Marino
188*86d7f5d3SJohn Marino move(y + 1, x + width - 1);
189*86d7f5d3SJohn Marino vline(ACS_VLINE, height - 2);
190*86d7f5d3SJohn Marino
191*86d7f5d3SJohn Marino for (i = y + 1; i < y + height - 1; i++) {
192*86d7f5d3SJohn Marino move(i, x + 1);
193*86d7f5d3SJohn Marino hline(' ', width - 2);
194*86d7f5d3SJohn Marino }
195*86d7f5d3SJohn Marino }
196*86d7f5d3SJohn Marino
197*86d7f5d3SJohn Marino void
curses_load_backdrop(WINDOW * w,const char * filename)198*86d7f5d3SJohn Marino curses_load_backdrop(WINDOW *w, const char *filename)
199*86d7f5d3SJohn Marino {
200*86d7f5d3SJohn Marino FILE *f;
201*86d7f5d3SJohn Marino char line[80];
202*86d7f5d3SJohn Marino int row = 1;
203*86d7f5d3SJohn Marino int my, mx;
204*86d7f5d3SJohn Marino
205*86d7f5d3SJohn Marino getmaxyx(w, my, mx);
206*86d7f5d3SJohn Marino wclear(w);
207*86d7f5d3SJohn Marino curses_colors_set(w, CURSES_COLORS_BACKDROP);
208*86d7f5d3SJohn Marino curses_window_blank(w);
209*86d7f5d3SJohn Marino
210*86d7f5d3SJohn Marino if ((f = fopen(filename, "r")) != NULL) {
211*86d7f5d3SJohn Marino while (fgets(line, 79, f) != NULL) {
212*86d7f5d3SJohn Marino if (row > my)
213*86d7f5d3SJohn Marino break;
214*86d7f5d3SJohn Marino if (line[strlen(line) - 1] == '\n')
215*86d7f5d3SJohn Marino line[strlen(line) - 1] = '\0';
216*86d7f5d3SJohn Marino mvwaddnstr(w, row++, 0, line, mx);
217*86d7f5d3SJohn Marino }
218*86d7f5d3SJohn Marino fclose(f);
219*86d7f5d3SJohn Marino }
220*86d7f5d3SJohn Marino }
221*86d7f5d3SJohn Marino
222*86d7f5d3SJohn Marino void
curses_debug_str(const char * s)223*86d7f5d3SJohn Marino curses_debug_str(const char *s)
224*86d7f5d3SJohn Marino {
225*86d7f5d3SJohn Marino char b[256];
226*86d7f5d3SJohn Marino
227*86d7f5d3SJohn Marino move(1, 0);
228*86d7f5d3SJohn Marino sprintf(b, "[%77s]", s);
229*86d7f5d3SJohn Marino addstr(b);
230*86d7f5d3SJohn Marino refresh();
231*86d7f5d3SJohn Marino }
232*86d7f5d3SJohn Marino
233*86d7f5d3SJohn Marino void
curses_debug_int(int i)234*86d7f5d3SJohn Marino curses_debug_int(int i)
235*86d7f5d3SJohn Marino {
236*86d7f5d3SJohn Marino char b[256];
237*86d7f5d3SJohn Marino
238*86d7f5d3SJohn Marino move(1, 0);
239*86d7f5d3SJohn Marino sprintf(b, "[%06d]", i);
240*86d7f5d3SJohn Marino addstr(b);
241*86d7f5d3SJohn Marino refresh();
242*86d7f5d3SJohn Marino }
243*86d7f5d3SJohn Marino
244*86d7f5d3SJohn Marino void
curses_debug_key(int i)245*86d7f5d3SJohn Marino curses_debug_key(int i)
246*86d7f5d3SJohn Marino {
247*86d7f5d3SJohn Marino char b[256];
248*86d7f5d3SJohn Marino
249*86d7f5d3SJohn Marino move(1, 0);
250*86d7f5d3SJohn Marino sprintf(b, "[%06d] %s", i, keyname(i));
251*86d7f5d3SJohn Marino addstr(b);
252*86d7f5d3SJohn Marino refresh();
253*86d7f5d3SJohn Marino }
254*86d7f5d3SJohn Marino
255*86d7f5d3SJohn Marino void
curses_debug_float(float f)256*86d7f5d3SJohn Marino curses_debug_float(float f)
257*86d7f5d3SJohn Marino {
258*86d7f5d3SJohn Marino char b[256];
259*86d7f5d3SJohn Marino
260*86d7f5d3SJohn Marino move(1, 0);
261*86d7f5d3SJohn Marino sprintf(b, "[%09.3f]", f);
262*86d7f5d3SJohn Marino addstr(b);
263*86d7f5d3SJohn Marino refresh();
264*86d7f5d3SJohn Marino }
265*86d7f5d3SJohn Marino
266*86d7f5d3SJohn Marino /*
267*86d7f5d3SJohn Marino * Word wrapping.
268*86d7f5d3SJohn Marino *
269*86d7f5d3SJohn Marino * text: The text to word-wrap, as one long string. Spaces will be
270*86d7f5d3SJohn Marino * compressed, but end-of-line characters will be honoured.
271*86d7f5d3SJohn Marino * line: A buffer (must be allocated by the caller) to hold a single
272*86d7f5d3SJohn Marino * line extracted from text.
273*86d7f5d3SJohn Marino * width: The maximum width of a line.
274*86d7f5d3SJohn Marino * spos: Pointer to the source position in text. Should be initially
275*86d7f5d3SJohn Marino * set to zero, and retained between calls to this function.
276*86d7f5d3SJohn Marino * Returns: A boolean indicating whether the end of text was reached.
277*86d7f5d3SJohn Marino * Typically this function should be called repeatedly until
278*86d7f5d3SJohn Marino * it returns true.
279*86d7f5d3SJohn Marino */
280*86d7f5d3SJohn Marino int
extract_wrapped_line(const char * text,char * line,int width,int * spos)281*86d7f5d3SJohn Marino extract_wrapped_line(const char *text, char *line, int width, int *spos)
282*86d7f5d3SJohn Marino {
283*86d7f5d3SJohn Marino int dpos = 0;
284*86d7f5d3SJohn Marino int saved_spos, saved_dpos;
285*86d7f5d3SJohn Marino
286*86d7f5d3SJohn Marino for (;;) {
287*86d7f5d3SJohn Marino /*
288*86d7f5d3SJohn Marino * Skip over whitespace. If we find a newline or the
289*86d7f5d3SJohn Marino * end of the text, return a blank line. Leave *spos
290*86d7f5d3SJohn Marino * at the position of the 1st non-whitespace character.
291*86d7f5d3SJohn Marino */
292*86d7f5d3SJohn Marino while (isspace(text[*spos]) && text[*spos] != '\0') {
293*86d7f5d3SJohn Marino if (text[*spos] == '\n') {
294*86d7f5d3SJohn Marino line[dpos] = '\0';
295*86d7f5d3SJohn Marino (*spos)++;
296*86d7f5d3SJohn Marino return(0);
297*86d7f5d3SJohn Marino }
298*86d7f5d3SJohn Marino (*spos)++;
299*86d7f5d3SJohn Marino }
300*86d7f5d3SJohn Marino
301*86d7f5d3SJohn Marino /*
302*86d7f5d3SJohn Marino * Save start position and destination position.
303*86d7f5d3SJohn Marino */
304*86d7f5d3SJohn Marino saved_spos = *spos;
305*86d7f5d3SJohn Marino saved_dpos = dpos;
306*86d7f5d3SJohn Marino
307*86d7f5d3SJohn Marino /*
308*86d7f5d3SJohn Marino * Read a word from *spos onward.
309*86d7f5d3SJohn Marino */
310*86d7f5d3SJohn Marino while (!isspace(text[*spos]) &&
311*86d7f5d3SJohn Marino text[*spos] != '\0' &&
312*86d7f5d3SJohn Marino dpos < width) {
313*86d7f5d3SJohn Marino line[dpos++] = text[(*spos)++];
314*86d7f5d3SJohn Marino }
315*86d7f5d3SJohn Marino
316*86d7f5d3SJohn Marino if (text[*spos] == '\0') {
317*86d7f5d3SJohn Marino /*
318*86d7f5d3SJohn Marino * End of string - return this word as the last.
319*86d7f5d3SJohn Marino */
320*86d7f5d3SJohn Marino line[dpos] = '\0';
321*86d7f5d3SJohn Marino return(1);
322*86d7f5d3SJohn Marino } else if (dpos >= width) {
323*86d7f5d3SJohn Marino /*
324*86d7f5d3SJohn Marino * Last word is too long to fit on this line.
325*86d7f5d3SJohn Marino */
326*86d7f5d3SJohn Marino if (dpos - saved_dpos >= width) {
327*86d7f5d3SJohn Marino /*
328*86d7f5d3SJohn Marino * In fact, it's too long to fit on any line!
329*86d7f5d3SJohn Marino * Truncate it.
330*86d7f5d3SJohn Marino */
331*86d7f5d3SJohn Marino line[width - 1] = '\0';
332*86d7f5d3SJohn Marino *spos = saved_spos + (dpos - saved_dpos);
333*86d7f5d3SJohn Marino return(0);
334*86d7f5d3SJohn Marino } else {
335*86d7f5d3SJohn Marino /*
336*86d7f5d3SJohn Marino * Save it for the next pass.
337*86d7f5d3SJohn Marino */
338*86d7f5d3SJohn Marino *spos = saved_spos;
339*86d7f5d3SJohn Marino line[saved_dpos - 1] = '\0';
340*86d7f5d3SJohn Marino return(0);
341*86d7f5d3SJohn Marino }
342*86d7f5d3SJohn Marino } else {
343*86d7f5d3SJohn Marino line[dpos++] = ' ';
344*86d7f5d3SJohn Marino }
345*86d7f5d3SJohn Marino }
346*86d7f5d3SJohn Marino }
347