struct WinMeta init_win_meta (WINDOW * screen) {
// Create and populate WinMeta struct with sane default values.
struct WinMeta win_meta;
- win_meta.height = screen->_maxy + 1;
+ win_meta.screen = screen;
+ win_meta.height = getmaxy(screen);
+ win_meta.width = getmaxx(screen);
win_meta.chain_start = 0;
win_meta.chain_end = 0;
+ win_meta.pad_offset = 0;
+ win_meta.pad = newpad(win_meta.height, 1);
return win_meta; }
struct Win init_window (struct WinMeta * win_meta, char * title) {
win.curses_win = 0;
win.title = title;
win.width = 20;
- win.height = win_meta->height;
+ win.height = win_meta->height - 1;
return win; }
void append_window (struct WinMeta * win_meta, struct Win * win) {
win->prev = 0;
win->next = 0; }
-void place_window (struct WinMeta * win_meta, struct Win * win) {
+struct yx place_window (struct WinMeta * win_meta, struct Win * win) {
// Based on position and sizes of previous window, find fitting place for current window.
- win->start_x = 0; // if window is first in chain, place it on top-left corner
- win->start_y = 0;
+ struct yx start;
+ start.x = 0; // if window is first in chain, place it on top-left corner
+ start.y = 1;
if (0 != win->prev) {
- if (win->prev->height == win_meta->height) // if prev window fills entire column, place win
- win->start_x = win->prev->start_x + win->prev->width; // in new column next to it
+ if (win->prev->height == win_meta->height - 1) // if prev window fills entire column,
+ start.x = getbegx(win->prev->curses_win) + win->prev->width + 1; // place win in new column next to it
else {
- struct Win * first_ceiling = win->prev; // first_ceiling determines column with;
- while (first_ceiling->start_y != 0) // default: place window in new column
- first_ceiling = first_ceiling->prev; // next to it
- win->start_x = first_ceiling->start_x + first_ceiling->width;
- if (first_ceiling->width >= win->width) { // only place windows in prev column that fit into its width
+ struct Win * first_ceiling = win->prev; // first_ceiling determines column with;
+ while (getbegy(first_ceiling->curses_win) != 1) // default: place window in new column
+ first_ceiling = first_ceiling->prev; // next to it
+ start.x = getbegx(first_ceiling->curses_win) + first_ceiling->width + 1;
+ if (first_ceiling->width >= win->width) { // only place wins in prev column that fit into its width
struct Win * win_p = first_ceiling;
struct Win * lastrow_startwin = win_p;
while (win_p != win) {
- if (win_p->start_x == first_ceiling->start_x)
- lastrow_startwin = win_p; // try to fit window at the end of the last
- win_p = win_p ->next; } // row of windows inside the column; if
- int lastcol_start = win->prev->start_x + win->prev->width; // that fails, try to open a new row below
- if (win->width <= first_ceiling->start_x + first_ceiling->width - lastcol_start
+ if (getbegx(win_p->curses_win) == getbegx(first_ceiling->curses_win))
+ lastrow_startwin = win_p; // try to fit window at the end of the last row of windows
+ win_p = win_p ->next; } // inside column; if failure, try opening a new row below
+ int lastcol_start = getbegx(win->prev->curses_win) + win->prev->width + 1;
+ if (win->width <= getbegx(first_ceiling->curses_win) + first_ceiling->width - lastcol_start
&& win->height <= lastrow_startwin->height) {
- win->start_x = lastcol_start;
- win->start_y = lastrow_startwin->start_y; }
- else if (win->height <= win_meta->height - (lastrow_startwin->start_y + lastrow_startwin->height)
+ start.x = lastcol_start;
+ start.y = getbegy(lastrow_startwin->curses_win); }
+ else if (win->height < win_meta->height - (getbegy(lastrow_startwin->curses_win) + lastrow_startwin->height)
&& win->width <= first_ceiling->width) {
- win->start_x = first_ceiling->start_x;
- win->start_y = lastrow_startwin->start_y + lastrow_startwin->height; } } } } }
+ start.x = getbegx(first_ceiling->curses_win);
+ start.y = getbegy(lastrow_startwin->curses_win) + lastrow_startwin->height + 1; } } } }
+ return start; }
void update_windows (struct WinMeta * win_meta, struct Win * win) {
-// Update geometry of win and its next of kin. Before, destroy window, if visible. After, (re-)build it.
+// Update geometry of win and its next of kin. Destroy (if visible), (re-)build window. If need, resize pad.
if (0 != win->curses_win)
destroy_window (win);
- place_window(win_meta, win);
- if (win->start_y + win->height < win_meta->height) // dependent on window position,
- win->border_down = 1; // append space for borders to be drawn
- else
- win->border_down = 0;
- if (win->start_x > 0)
- win->border_left = 1;
- else
- win->border_left = 0;
- win->curses_win = newwin(win->height + win->border_down, win->width + win->border_left, win->start_y, win->start_x - win->border_left);
+ struct yx startyx = place_window(win_meta, win);
+ int lastwincol = 0;
+ struct Win * win_p = win_meta->chain_start;
+ while (win_p != 0) {
+ if (win_p != win && getbegx(win_p->curses_win) + win_p->width > lastwincol + 1)
+ lastwincol = getbegx(win_p->curses_win) + win_p->width - 1;
+ else if (win_p == win && startyx.x + win->width > lastwincol + 1)
+ lastwincol = startyx.x + win->width - 1;
+ win_p = win_p->next; }
+ if (getmaxx(win_meta->pad) != lastwincol) {
+ wresize(win_meta->pad, getmaxy(win_meta->pad), lastwincol + 2); }
+ win->curses_win = subpad(win_meta->pad, win->height, win->width, startyx.y, startyx.x);
if (0 != win->next)
update_windows (win_meta, win->next); }
void destroy_window (struct Win * win) {
-// Undraw and delete window.
- undraw_window (win->curses_win);
+// Delete window.
delwin(win->curses_win);
win->curses_win = 0; }
-void draw_windows (struct WinMeta * win_meta, struct Win * win) {
-// Draw all windows from the current one on.
- draw_window(win_meta, win);
- if (0 != win->next)
- draw_windows (win_meta, win->next); }
-
-void draw_all_windows (struct WinMeta * win_meta) {
-// Draw all windows from the chain start on.
- if (win_meta->chain_start)
- draw_windows (win_meta, win_meta->chain_start); }
-
-void draw_window(struct WinMeta * win_meta, struct Win * win) {
-// Draw win's content, including border and title (the latter dependent on space available for it).
- char ls = '|';
- char rs = '|';
- char ts = '-';
- char bs = '-';
- char tl = '-';
- char tr = '+';
- char bl = '|';
- char br = '|';
- if (1 == win->border_down) {
- bl = '+';
- br = '+'; }
- if (1 == win->border_left)
- tl = '+';
- wborder(win->curses_win, ls, rs, ts, bs, tl, tr, bl, br);
+void draw_window_borders (struct Win * win, char active) {
+// Draw borders of window win, including title. Decorate in a special way if window is marked as active.
+ int y, x;
+ for (y = getbegy(win->curses_win); y <= getbegy(win->curses_win) + win->height; y++) {
+ mvwaddch(wgetparent(win->curses_win), y, getbegx(win->curses_win) - 1, '|');
+ mvwaddch(wgetparent(win->curses_win), y, getbegx(win->curses_win) + win->width, '|'); }
+ for (x = getbegx(win->curses_win); x <= getbegx(win->curses_win) + win->width; x++) {
+ mvwaddch(wgetparent(win->curses_win), getbegy(win->curses_win) - 1, x, '-');
+ mvwaddch(wgetparent(win->curses_win), getbegy(win->curses_win) + win->height, x, '-'); }
char min_title_length_visible = 3; // 1 char minimal, plus 2 chars for decoration left/right of title
- if (win->width > min_title_length_visible) {
- int title_length = strlen(win->title);
- int title_offset = (((win->width) - (title_length + 2)) / 2) + win->border_left; // + 2 is for decoration
- if (title_offset < win->border_left)
- title_offset = win->border_left;
- int length_visible = strnlen(win->title, win->width - min_title_length_visible);
+ if (win->width >= min_title_length_visible) {
+ int title_offset = 0;
+ if (win->width > strlen(win->title) + 2)
+ title_offset = (win->width - (strlen(win->title) + 2)) / 2; // + 2 is for decoration
+ int length_visible = strnlen(win->title, win->width - 2);
char title[length_visible + 3];
char decoration = ' ';
- if (win_meta->active == win)
+ if (1 == active)
decoration = '$';
memcpy(title + 1, win->title, length_visible);
title[0] = title[length_visible + 1] = decoration;
title[length_visible + 2] = '\0';
- mvwaddstr(win->curses_win, 0, title_offset, title); }
- if (win->height > 1 && win->width > 1) ;
- win->draw(win);
- wrefresh(win->curses_win); }
+ mvwaddstr(wgetparent(win->curses_win), getbegy(win->curses_win) - 1, getbegx(win->curses_win) + title_offset, title); } }
-void undraw_window (WINDOW * win) {
-// Fill entire window with whitespace.
- int y, x;
- for (y = 0; y <= win->_maxy; y++)
- for (x = 0; x <= win->_maxx; x++)
- mvwaddch(win, y, x, ' ');
- wrefresh(win); }
+void draw_windows_borders (struct Win * win, struct Win * win_active, struct Corners * corners, int ccount) {
+// Craw draw_window_borders() for all windows in chain from win on. Save current window's border corners.
+ char active = 0;
+ if (win == win_active)
+ active = 1;
+ draw_window_borders(win, active);
+ corners[ccount].tl.y = getbegy(win->curses_win) - 1;
+ corners[ccount].tl.x = getbegx(win->curses_win) - 1;
+ corners[ccount].tr.y = getbegy(win->curses_win) - 1;
+ corners[ccount].tr.x = getbegx(win->curses_win) + win->width;
+ corners[ccount].bl.y = getbegy(win->curses_win) + win->height;
+ corners[ccount].bl.x = getbegx(win->curses_win) - 1;
+ corners[ccount].br.y = getbegy(win->curses_win) + win->height;
+ corners[ccount].br.x = getbegx(win->curses_win) + win->width;
+ if (0 != win->next) {
+ draw_windows_borders (win->next, win_active, corners, ccount + 1); } }
+
+void draw_windows (struct Win * win) {
+// Draw contents of all windows in window chain from win on.
+ win->draw(win);
+ if (0 != win->next) {
+ draw_windows (win->next); } }
+
+void draw_all_windows (struct WinMeta * win_meta) {
+// Draw all windows and their borders.
+ erase();
+ wnoutrefresh(win_meta->screen);
+ werase(win_meta->pad);
+ if (win_meta->chain_start) {
+ int n_wins = 1;
+ struct Win * win_p = win_meta->chain_start;
+ while (0 != win_p->next) {
+ win_p = win_p->next;
+ n_wins++; }
+ struct Corners * all_corners = malloc(sizeof(struct Corners) * n_wins);
+ draw_windows (win_meta->chain_start);
+ draw_windows_borders (win_meta->chain_start, win_meta->active, all_corners, 0);
+ int i;
+ for (i = 0; i < n_wins; i++) {
+ mvwaddch(win_meta->pad, all_corners[i].tl.y, all_corners[i].tl.x, '+');
+ mvwaddch(win_meta->pad, all_corners[i].tr.y, all_corners[i].tr.x, '+');
+ mvwaddch(win_meta->pad, all_corners[i].bl.y, all_corners[i].bl.x, '+');
+ mvwaddch(win_meta->pad, all_corners[i].br.y, all_corners[i].br.x, '+'); }
+ pnoutrefresh(win_meta->pad, 0, win_meta->pad_offset, 0, 0, win_meta->height, win_meta->width - 1);
+ free(all_corners); }
+ doupdate(); }
void resize_window (struct WinMeta * win_meta, char change) {
// Grow or shrink currently active window. Correct its geometry and that of its followers.
- if (change == '-' && win_meta->active->height > 2)
+ if (change == '-' && win_meta->active->height > 1)
win_meta->active->height--;
- else if (change == '+' && win_meta->active->height < win_meta->height)
+ else if (change == '+' && win_meta->active->height < win_meta->height - 1)
win_meta->active->height++;
- else if (change == '_' && win_meta->active->width > 2)
+ else if (change == '_' && win_meta->active->width > 1)
win_meta->active->width--;
else if (change == '*')
win_meta->active->width++;
projects / plomrogue / blobdiff