/* Updates the status bar */
static void update_status_win(enum win_refresh dorefresh)
{
int pos;
int attr;
attr = hl_groups_get_attr(hl_groups_instance, HLG_STATUS_BAR);
/* Print white background */
swin_wattron(status_win, attr);
for (pos = 0; pos < WIDTH; pos++)
swin_mvwprintw(status_win, 0, pos, " ");
/* Show the user which window is focused */
if (focus == GDB)
swin_mvwprintw(status_win, 0, WIDTH - 1, "*");
else if (focus == CGDB || focus == CGDB_STATUS_BAR)
swin_mvwprintw(status_win, 0, WIDTH - 1, " ");
swin_wattroff(status_win, attr);
/* Print the regex that the user is looking for Forward */
if (sbc_kind == SBC_REGEX && regex_direction_cur) {
if_display_message("/", dorefresh, WIDTH - 1, "%s", ibuf_get(regex_cur));
swin_curs_set(1);
}
/* Regex backwards */
else if (sbc_kind == SBC_REGEX) {
if_display_message("?", dorefresh, WIDTH - 1, "%s", ibuf_get(regex_cur));
swin_curs_set(1);
}
/* A colon command typed at the status bar */
else if (focus == CGDB_STATUS_BAR && sbc_kind == SBC_NORMAL) {
const char *command = ibuf_get(cur_sbc);
if (!command)
command = "";
if_display_message(":", dorefresh, WIDTH - 1, "%s", command);
swin_curs_set(1);
}
/* Default: Current Filename */
else {
/* Print filename */
const char *filename = source_current_file(src_viewer);
if (filename) {
if_display_message("", dorefresh, WIDTH - 1, "%s", filename);
}
}
if (dorefresh == WIN_REFRESH)
swin_wrefresh(status_win);
else
swin_wnoutrefresh(status_win);
}
void if_display_message(const char *msg, enum win_refresh dorefresh, int width, const char *fmt, ...)
{
va_list ap;
char va_buf[MAXLINE];
char buf_display[MAXLINE];
int pos, error_length, length;
int attr;
attr = hl_groups_get_attr(hl_groups_instance, HLG_STATUS_BAR);
swin_curs_set(0);
if (!width)
width = WIDTH;
/* Get the buffer with format */
va_start(ap, fmt);
#ifdef HAVE_VSNPRINTF
vsnprintf(va_buf, sizeof (va_buf), fmt, ap); /* this is safe */
#else
vsprintf(va_buf, fmt, ap); /* this is not safe */
#endif
va_end(ap);
error_length = strlen(msg);
length = strlen(va_buf);
if (error_length > width)
strcat(strncpy(buf_display, msg, width - 1), ">");
else if (error_length + length > width)
snprintf(buf_display, sizeof(buf_display), "%s>%s", msg,
va_buf + (length - (width - error_length) + 1));
else
snprintf(buf_display, sizeof(buf_display), "%s%s", msg, va_buf);
/* Print white background */
swin_wattron(status_win, attr);
for (pos = 0; pos < WIDTH; pos++)
swin_mvwprintw(status_win, 0, pos, " ");
swin_mvwprintw(status_win, 0, 0, "%s", buf_display);
swin_wattroff(status_win, attr);
if (dorefresh == WIN_REFRESH)
swin_wrefresh(status_win);
else
swin_wnoutrefresh(status_win);
}
void filedlg_display_message(struct filedlg *fd, char *message)
{
int height, width, i;
int attr;
attr = hl_groups_get_attr(hl_groups_instance, HLG_STATUS_BAR);
height = swin_getmaxy(fd->win);
width = swin_getmaxx(fd->win);
/* Print white background */
swin_wattron(fd->win, attr);
for (i = 0; i < width; i++)
swin_mvwprintw(fd->win, height - 1, i, " ");
swin_mvwprintw(fd->win, height - 1, 0, "%s", message);
swin_wattroff(fd->win, attr);
swin_wrefresh(fd->win);
}
/* print_in_middle: Prints the message 'string' centered at line in win
* ----------------
*
* win: Curses window
* line: The line to print the message at
* width: The width of the window
* string: The message to print
*/
static void print_in_middle(SWINDOW *win, int line, int width, const char *string)
{
int x, y;
int j;
int length = strlen(string);
y = swin_getcury(win);
x = swin_getcurx(win);
x = (int) ((width - length) / 2);
swin_wmove(win, line, 0);
for (j = 0; j < x; j++)
swin_waddch(win, ' ');
swin_mvwprintw(win, line, x, "%s", string);
for (j = x + length; j < width; j++)
swin_waddch(win, ' ');
}
void scr_refresh(struct scroller *scr, int focus, enum win_refresh dorefresh)
{
int length; /* Length of current line */
int nlines; /* Number of lines written so far */
int r; /* Current row in scroller */
int c; /* Current column in row */
int width, height; /* Width and height of window */
int highlight_attr;
int hlsearch = cgdbrc_get_int(CGDBRC_HLSEARCH);
int rows_to_display = 0;
/* Steal line highlight attribute for our scroll mode status */
highlight_attr = hl_groups_get_attr(hl_groups_instance,
HLG_SCROLL_MODE_STATUS);
/* Sanity check */
height = swin_getmaxy(scr->win);
width = swin_getmaxx(scr->win);
if (scr->current.c > 0) {
if (scr->current.c % width != 0)
scr->current.c = (scr->current.c / width) * width;
}
r = scr->current.r;
c = scr->current.c;
rows_to_display = number_rows_to_display(scr, height, width);
/**
* Printing the scroller to the gdb window.
*
* The gdb window has a certain dimension (height and width).
* The scroller has a certain number of rows to print.
*
* When starting cgdb, or when the user clears the screen with Ctrl-L,
* the entire scroller buffer is not displayed in the gdb window.
*
* The gdb readline input will be displayed just below the last
* line of output in the scroller.
*
* In order to display the scroller buffer, first determine how many
* lines should be displayed. Then start drawing from the bottom of
* the viewable space and work our way up.
*/
for (nlines = 1; nlines <= height; nlines++) {
/* Empty lines below the scroller prompt should be empty.
* When in scroller mode, there should be no empty lines on the
* bottom. */
if (!scr->in_scroll_mode && nlines <= height - rows_to_display) {
swin_wmove(scr->win, height - nlines, 0);
swin_wclrtoeol(scr->win);
}
/* Print the current line [segment] */
else if (r >= 0) {
struct scroller_line *sline = &scr->lines[r];
hl_printline(scr->win, sline->line, sline->line_len, sline->attrs, 0, height - nlines, c, width);
/* If we're searching right now or we finished search
* and have focus... */
if (hlsearch && scr->last_hlregex && focus) {
struct hl_line_attr *attrs = hl_regex_highlight(
&scr->last_hlregex, sline->line, HLG_SEARCH);
if (sbcount(attrs)) {
hl_printline_highlight(scr->win, sline->line,
sline->line_len, attrs, 0, height - nlines, c, width);
sbfree(attrs);
}
}
if (scr->hlregex && scr->current.r == r) {
struct hl_line_attr *attrs = hl_regex_highlight(
&scr->hlregex, sline->line, HLG_INCSEARCH);
if (sbcount(attrs)) {
hl_printline_highlight(scr->win, sline->line,
sline->line_len, attrs, 0, height - nlines, c, width);
sbfree(attrs);
}
}
/* Update our position */
if (c >= width)
c -= width;
else {
r--;
if (r >= 0) {
length = scr->lines[r].line_len;
if (length > width)
c = ((length - 1) / width) * width;
}
}
/* Empty lines above the first line in the scroller should be empty.
* Since the scroller starts at the top, this should only occur when
* in the scroll mode. */
} else {
swin_wmove(scr->win, height - nlines, 0);
swin_wclrtoeol(scr->win);
}
/* If we're in scroll mode and this is the top line, spew status on right */
if (scr->in_scroll_mode && (nlines == height)) {
char status[ 64 ];
size_t status_len;
snprintf(status, sizeof(status), "[%d/%d]", scr->current.r + 1, sbcount(scr->lines));
status_len = strlen(status);
if ( status_len < width ) {
swin_wattron(scr->win, highlight_attr);
swin_mvwprintw(scr->win, height - nlines, width - status_len, "%s", status);
swin_wattroff(scr->win, highlight_attr);
}
}
}
length = scr->lines[scr->current.r].line_len - scr->current.c;
/* Only show the cursor when
* - the scroller is in focus
* - on the last line
* - when it is within the width of the screen
* - when not in scroller mode
*/
if (focus && scr->current.r == sbcount(scr->lines) - 1 &&
length <= width && !scr->in_scroll_mode) {
swin_curs_set(1);
swin_wmove(scr->win, rows_to_display-1, scr->current.pos % width);
} else {
/* Hide the cursor */
swin_curs_set(0);
}
switch(dorefresh) {
case WIN_NO_REFRESH:
swin_wnoutrefresh(scr->win);
break;
case WIN_REFRESH:
swin_wrefresh(scr->win);
break;
}
}
int filedlg_display(struct filedlg *fd)
{
char fmt[16];
int width, height;
int lwidth;
int file;
int i;
int statusbar;
int arrow_attr;
int count = sbcount(fd->buf->files);
int hlsearch = cgdbrc_get_int(CGDBRC_HLSEARCH);
static const char label[] = "Select a file or press q to cancel.";
int inc_search_attr = hl_groups_get_attr(hl_groups_instance, HLG_INCSEARCH);
int search_attr = hl_groups_get_attr(hl_groups_instance, HLG_SEARCH);
swin_curs_set(0);
statusbar = hl_groups_get_attr(hl_groups_instance, HLG_STATUS_BAR);
arrow_attr = hl_groups_get_attr(hl_groups_instance, HLG_SELECTED_LINE_ARROW);
/* Check that a file is loaded */
if (fd == NULL || fd->buf == NULL || fd->buf->files == NULL) {
swin_wrefresh(fd->win);
return 0;
}
/* Initialize variables */
height = swin_getmaxy(fd->win);
width = swin_getmaxx(fd->win);
/* The status bar and display line
* Fake the display function to think the height is 2 lines less */
height -= 2;
/* Set starting line number (center source file if it's small enough) */
if (count < height)
file = (count - height) / 2;
else {
file = fd->buf->sel_line - height / 2;
if (file > count - height)
file = count - height;
else if (file < 0)
file = 0;
}
/* Print 'height' lines of the file, starting at 'file' */
lwidth = log10_uint(count) + 1;
snprintf(fmt, sizeof(fmt), "%%%dd", lwidth);
print_in_middle(fd->win, 0, width, label);
swin_wmove(fd->win, 0, 0);
for (i = 1; i < height + 1; i++, file++) {
swin_wmove(fd->win, i, 0);
/* Outside of filename, just finish drawing the vertical file */
if (file < 0 || file >= count) {
int j;
for (j = 1; j < lwidth; j++)
swin_waddch(fd->win, ' ');
swin_waddch(fd->win, '~');
swin_wattron(fd->win, SWIN_A_BOLD);
swin_waddch(fd->win, SWIN_SYM_VLINE);
swin_wattroff(fd->win, SWIN_A_BOLD);
for (j = 2 + lwidth; j < width; j++)
swin_waddch(fd->win, ' ');
continue;
}
int x, y;
char *filename = fd->buf->files[file];
/* Mark the current file with an arrow */
if (file == fd->buf->sel_line) {
swin_wattron(fd->win, SWIN_A_BOLD);
swin_wprintw(fd->win, fmt, file + 1);
swin_wattroff(fd->win, SWIN_A_BOLD);
swin_wattron(fd->win, arrow_attr);
swin_waddch(fd->win, '-');
swin_waddch(fd->win, '>');
swin_wattroff(fd->win, arrow_attr);
}
else {
/* Ordinary file */
swin_wprintw(fd->win, fmt, file + 1);
swin_wattron(fd->win, SWIN_A_BOLD);
swin_waddch(fd->win, SWIN_SYM_VLINE);
swin_wattroff(fd->win, SWIN_A_BOLD);
swin_waddch(fd->win, ' ');
}
y = swin_getcury(fd->win);
x = swin_getcurx(fd->win);
hl_printline(fd->win, filename, strlen(filename),
NULL, -1, -1, fd->buf->sel_col, width - lwidth - 2);
if (hlsearch && fd->last_hlregex) {
struct hl_line_attr *attrs = hl_regex_highlight(
&fd->last_hlregex, filename, search_attr);
if (sbcount(attrs)) {
hl_printline_highlight(fd->win, filename, strlen(filename),
attrs, x, y, fd->buf->sel_col, width - lwidth - 2);
sbfree(attrs);
}
}
if (regex_search && file == fd->buf->sel_line) {
struct hl_line_attr *attrs = hl_regex_highlight(
&fd->hlregex, filename, inc_search_attr);
if (sbcount(attrs)) {
hl_printline_highlight(fd->win, filename, strlen(filename),
attrs, x, y, fd->buf->sel_col, width - lwidth - 2);
sbfree(attrs);
}
}
}
/* Add the 2 lines back in so the status bar can be drawn */
height += 2;
/* Update status bar */
swin_wmove(fd->win, height, 0);
/* Print white background */
swin_wattron(fd->win, statusbar);
for (i = 0; i < width; i++)
swin_mvwprintw(fd->win, height - 1, i, " ");
if (regex_search && regex_direction)
swin_mvwprintw(fd->win, height - 1, 0, "Search:%s", regex_line);
else if (regex_search)
swin_mvwprintw(fd->win, height - 1, 0, "RSearch:%s", regex_line);
swin_wattroff(fd->win, statusbar);
swin_wmove(fd->win, height - (file - fd->buf->sel_line) - 1, lwidth + 2);
swin_wrefresh(fd->win);
return 0;
}
