pdcurses/border.c

changeset 97
2d43f05b284c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pdcurses/border.c	Thu Jul 23 18:07:39 2015 +0300
@@ -0,0 +1,408 @@
+/* Public Domain Curses */
+
+#include <curspriv.h>
+
+RCSID("$Id: border.c,v 1.53 2008/07/13 16:08:18 wmcbrine Exp $")
+
+/*man-start**************************************************************
+
+  Name:                                                         border
+
+  Synopsis:
+        int border(chtype ls, chtype rs, chtype ts, chtype bs, chtype tl, 
+                   chtype tr, chtype bl, chtype br);
+        int wborder(WINDOW *win, chtype ls, chtype rs, chtype ts, 
+                    chtype bs, chtype tl, chtype tr, chtype bl, chtype br);
+        int box(WINDOW *win, chtype verch, chtype horch);
+        int hline(chtype ch, int n);
+        int vline(chtype ch, int n);
+        int whline(WINDOW *win, chtype ch, int n);
+        int wvline(WINDOW *win, chtype ch, int n);
+        int mvhline(int y, int x, chtype ch, int n);
+        int mvvline(int y, int x, chtype ch, int n);
+        int mvwhline(WINDOW *win, int y, int x, chtype ch, int n);
+        int mvwvline(WINDOW *win, int y, int x, chtype ch, int n);
+
+        int border_set(const cchar_t *ls, const cchar_t *rs,
+                       const cchar_t *ts, const cchar_t *bs,
+                       const cchar_t *tl, const cchar_t *tr,
+                       const cchar_t *bl, const cchar_t *br);
+        int wborder_set(WINDOW *win, const cchar_t *ls, const cchar_t *rs,
+                        const cchar_t *ts, const cchar_t *bs,
+                        const cchar_t *tl, const cchar_t *tr,
+                        const cchar_t *bl, const cchar_t *br);
+        int box_set(WINDOW *win, const cchar_t *verch, const cchar_t *horch);
+        int hline_set(const cchar_t *wch, int n);
+        int vline_set(const cchar_t *wch, int n);
+        int whline_set(WINDOW *win, const cchar_t *wch, int n);
+        int wvline_set(WINDOW *win, const cchar_t *wch, int n);
+        int mvhline_set(int y, int x, const cchar_t *wch, int n);
+        int mvvline_set(int y, int x, const cchar_t *wch, int n);
+        int mvwhline_set(WINDOW *win, int y, int x, const cchar_t *wch, int n);
+        int mvwvline_set(WINDOW *win, int y, int x, const cchar_t *wch, int n);
+
+  Description:
+        border(), wborder(), and box() draw a border around the edge of 
+        the window. If any argument is zero, an appropriate default is 
+        used:
+
+                ls      left side of border             ACS_VLINE
+                rs      right side of border            ACS_VLINE
+                ts      top side of border              ACS_HLINE
+                bs      bottom side of border           ACS_HLINE
+                tl      top left corner of border       ACS_ULCORNER
+                tr      top right corner of border      ACS_URCORNER
+                bl      bottom left corner of border    ACS_LLCORNER
+                br      bottom right corner of border   ACS_LRCORNER
+
+        hline() and whline() draw a horizontal line, using ch, starting 
+        from the current cursor position. The cursor position does not 
+        change. The line is at most n characters long, or as many as 
+        will fit in the window.
+
+        vline() and wvline() draw a vertical line, using ch, starting 
+        from the current cursor position. The cursor position does not 
+        change. The line is at most n characters long, or as many as 
+        will fit in the window.
+
+  Return Value:
+        These functions return OK on success and ERR on error.
+
+  Portability                                X/Open    BSD    SYS V
+        border                                  Y       -      4.0
+        wborder                                 Y       -      4.0
+        box                                     Y       Y       Y
+        hline                                   Y       -      4.0
+        vline                                   Y       -      4.0
+        whline                                  Y       -      4.0
+        wvline                                  Y       -      4.0
+        mvhline                                 Y
+        mvvline                                 Y
+        mvwhline                                Y
+        mvwvline                                Y
+        border_set                              Y
+        wborder_set                             Y
+        box_set                                 Y
+        hline_set                               Y
+        vline_set                               Y
+        whline_set                              Y
+        wvline_set                              Y
+        mvhline_set                             Y
+        mvvline_set                             Y
+        mvwhline_set                            Y
+        mvwvline_set                            Y
+
+**man-end****************************************************************/
+
+/* _attr_passthru() -- Takes a single chtype 'ch' and checks if the 
+   current attribute of window 'win', as set by wattrset(), and/or the 
+   current background of win, as set by wbkgd(), should by combined with 
+   it. Attributes set explicitly in ch take precedence. */
+
+static chtype _attr_passthru(WINDOW *win, chtype ch)
+{
+    chtype attr;
+
+    /* If the incoming character doesn't have its own attribute, then 
+       use the current attributes for the window. If the incoming 
+       character has attributes, but not a color component, OR the 
+       attributes to the current attributes for the window. If the 
+       incoming character has a color component, use only the attributes 
+       from the incoming character. */
+
+    attr = ch & A_ATTRIBUTES;
+    if (!(attr & A_COLOR))
+        attr |= win->_attrs;
+
+    /* wrs (4/10/93) -- Apply the same sort of logic for the window 
+       background, in that it only takes precedence if other color 
+       attributes are not there. */
+
+    if (!(attr & A_COLOR))
+        attr |= win->_bkgd & A_ATTRIBUTES;
+    else
+        attr |= win->_bkgd & (A_ATTRIBUTES ^ A_COLOR);
+
+    ch = (ch & A_CHARTEXT) | attr;
+
+    return ch;
+}
+
+int wborder(WINDOW *win, chtype ls, chtype rs, chtype ts, chtype bs, 
+            chtype tl, chtype tr, chtype bl, chtype br)
+{
+    int i, ymax, xmax;
+
+    PDC_LOG(("wborder() - called\n"));
+
+    if (!win)
+        return ERR;
+
+    ymax = win->_maxy - 1;
+    xmax = win->_maxx - 1;
+
+    ls = _attr_passthru(win, ls ? ls : ACS_VLINE);
+    rs = _attr_passthru(win, rs ? rs : ACS_VLINE);
+    ts = _attr_passthru(win, ts ? ts : ACS_HLINE);
+    bs = _attr_passthru(win, bs ? bs : ACS_HLINE);
+    tl = _attr_passthru(win, tl ? tl : ACS_ULCORNER);
+    tr = _attr_passthru(win, tr ? tr : ACS_URCORNER);
+    bl = _attr_passthru(win, bl ? bl : ACS_LLCORNER);
+    br = _attr_passthru(win, br ? br : ACS_LRCORNER);
+
+    for (i = 1; i < xmax; i++)
+    {
+        win->_y[0][i] = ts;
+        win->_y[ymax][i] = bs;
+    }
+
+    for (i = 1; i < ymax; i++)
+    {
+        win->_y[i][0] = ls;
+        win->_y[i][xmax] = rs;
+    }
+
+    win->_y[0][0] = tl;
+    win->_y[0][xmax] = tr;
+    win->_y[ymax][0] = bl;
+    win->_y[ymax][xmax] = br;
+
+    for (i = 0; i <= ymax; i++)
+    {
+        win->_firstch[i] = 0;
+        win->_lastch[i] = xmax;
+    }
+
+    PDC_sync(win);
+
+    return OK;
+}
+
+int border(chtype ls, chtype rs, chtype ts, chtype bs, chtype tl,
+           chtype tr, chtype bl, chtype br)
+{
+    PDC_LOG(("border() - called\n"));
+
+    return wborder(stdscr, ls, rs, ts, bs, tl, tr, bl, br);
+}
+
+int box(WINDOW *win, chtype verch, chtype horch)
+{
+    PDC_LOG(("box() - called\n"));
+
+    return wborder(win, verch, verch, horch, horch, 0, 0, 0, 0);
+}
+
+int whline(WINDOW *win, chtype ch, int n)
+{
+    chtype *dest;
+    int startpos, endpos;
+
+    PDC_LOG(("whline() - called\n"));
+
+    if (!win || n < 1)
+        return ERR;
+
+    startpos = win->_curx;
+    endpos = min(startpos + n, win->_maxx) - 1;
+    dest = win->_y[win->_cury];
+    ch = _attr_passthru(win, ch ? ch : ACS_HLINE);
+
+    for (n = startpos; n <= endpos; n++)
+        dest[n] = ch;
+
+    n = win->_cury;
+
+    if (startpos < win->_firstch[n] || win->_firstch[n] == _NO_CHANGE)
+        win->_firstch[n] = startpos;
+
+    if (endpos > win->_lastch[n])
+        win->_lastch[n] = endpos;
+
+    PDC_sync(win);
+
+    return OK;
+}
+
+int hline(chtype ch, int n)
+{
+    PDC_LOG(("hline() - called\n"));
+
+    return whline(stdscr, ch, n);
+}
+
+int mvhline(int y, int x, chtype ch, int n)
+{
+    PDC_LOG(("mvhline() - called\n"));
+
+    if (move(y, x) == ERR)
+        return ERR;
+
+    return whline(stdscr, ch, n);
+}
+
+int mvwhline(WINDOW *win, int y, int x, chtype ch, int n)
+{
+    PDC_LOG(("mvwhline() - called\n"));
+
+    if (wmove(win, y, x) == ERR)
+        return ERR;
+
+    return whline(win, ch, n);
+}
+
+int wvline(WINDOW *win, chtype ch, int n)
+{
+    int endpos, x;
+
+    PDC_LOG(("wvline() - called\n"));
+
+    if (!win || n < 1)
+        return ERR;
+
+    endpos = min(win->_cury + n, win->_maxy);
+    x = win->_curx;
+
+    ch = _attr_passthru(win, ch ? ch : ACS_VLINE);
+
+    for (n = win->_cury; n < endpos; n++)
+    {
+        win->_y[n][x] = ch;
+
+        if (x < win->_firstch[n] || win->_firstch[n] == _NO_CHANGE)
+            win->_firstch[n] = x;
+
+        if (x > win->_lastch[n])
+            win->_lastch[n] = x;
+    }
+
+    PDC_sync(win);
+
+    return OK;
+}
+
+int vline(chtype ch, int n)
+{
+    PDC_LOG(("vline() - called\n"));
+
+    return wvline(stdscr, ch, n);
+}
+
+int mvvline(int y, int x, chtype ch, int n)
+{
+    PDC_LOG(("mvvline() - called\n"));
+
+    if (move(y, x) == ERR)
+        return ERR;
+
+    return wvline(stdscr, ch, n);
+}
+
+int mvwvline(WINDOW *win, int y, int x, chtype ch, int n)
+{
+    PDC_LOG(("mvwvline() - called\n"));
+
+    if (wmove(win, y, x) == ERR)
+        return ERR;
+
+    return wvline(win, ch, n);
+}
+
+#ifdef PDC_WIDE
+int wborder_set(WINDOW *win, const cchar_t *ls, const cchar_t *rs,
+                const cchar_t *ts, const cchar_t *bs, const cchar_t *tl,
+                const cchar_t *tr, const cchar_t *bl, const cchar_t *br)
+{
+    PDC_LOG(("wborder_set() - called\n"));
+
+    return wborder(win, ls ? *ls : 0, rs ? *rs : 0, ts ? *ts : 0,
+                        bs ? *bs : 0, tl ? *tl : 0, tr ? *tr : 0,
+                        bl ? *bl : 0, br ? *br : 0);
+}
+
+int border_set(const cchar_t *ls, const cchar_t *rs, const cchar_t *ts,
+               const cchar_t *bs, const cchar_t *tl, const cchar_t *tr,
+               const cchar_t *bl, const cchar_t *br)
+{
+    PDC_LOG(("border_set() - called\n"));
+
+    return wborder_set(stdscr, ls, rs, ts, bs, tl, tr, bl, br);
+}
+
+int box_set(WINDOW *win, const cchar_t *verch, const cchar_t *horch)
+{
+    PDC_LOG(("box_set() - called\n"));
+
+    return wborder_set(win, verch, verch, horch, horch,
+                       (const cchar_t *)NULL, (const cchar_t *)NULL,
+                       (const cchar_t *)NULL, (const cchar_t *)NULL);
+}
+
+int whline_set(WINDOW *win, const cchar_t *wch, int n)
+{
+    PDC_LOG(("whline_set() - called\n"));
+
+    return wch ? whline(win, *wch, n) : ERR;
+}
+
+int hline_set(const cchar_t *wch, int n)
+{
+    PDC_LOG(("hline_set() - called\n"));
+
+    return whline_set(stdscr, wch, n);
+}
+
+int mvhline_set(int y, int x, const cchar_t *wch, int n)
+{
+    PDC_LOG(("mvhline_set() - called\n"));
+
+    if (move(y, x) == ERR)
+        return ERR;
+
+    return whline_set(stdscr, wch, n);
+}
+
+int mvwhline_set(WINDOW *win, int y, int x, const cchar_t *wch, int n)
+{
+    PDC_LOG(("mvwhline_set() - called\n"));
+
+    if (wmove(win, y, x) == ERR)
+        return ERR;
+
+    return whline_set(win, wch, n);
+}
+
+int wvline_set(WINDOW *win, const cchar_t *wch, int n)
+{
+    PDC_LOG(("wvline_set() - called\n"));
+
+    return wch ? wvline(win, *wch, n) : ERR;
+}
+
+int vline_set(const cchar_t *wch, int n)
+{
+    PDC_LOG(("vline_set() - called\n"));
+
+    return wvline_set(stdscr, wch, n);
+}
+
+int mvvline_set(int y, int x, const cchar_t *wch, int n)
+{
+    PDC_LOG(("mvvline_set() - called\n"));
+
+    if (move(y, x) == ERR)
+        return ERR;
+
+    return wvline_set(stdscr, wch, n);
+}
+
+int mvwvline_set(WINDOW *win, int y, int x, const cchar_t *wch, int n)
+{
+    PDC_LOG(("mvwvline_set() - called\n"));
+
+    if (wmove(win, y, x) == ERR)
+        return ERR;
+
+    return wvline_set(win, wch, n);
+}
+#endif

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