92 lines
3.7 KiB
C
92 lines
3.7 KiB
C
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/*--------------------------------*-C-*---------------------------------*
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* File: scrollbar.h
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*
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* Copyright 1996,97
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* mj olesen <olesen@me.QueensU.CA> Queen's Univ at Kingston
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*
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* You can do what you like with this source code provided you don't make
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* money from it and you include an unaltered copy of this message
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* (including the copyright). As usual, the author accepts no
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* responsibility for anything, nor does he guarantee anything whatsoever.
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*----------------------------------------------------------------------*/
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#ifndef _SCROLLBAR_H
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# define _SCROLLBAR_H
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# include <X11/Xfuncproto.h>
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# include <ctype.h>
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# ifdef PIXMAP_SCROLLBAR
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# include "eterm_imlib.h"
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# endif
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/* Scrollbar types we support */
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# define SCROLLBAR_MOTIF 1
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# define SCROLLBAR_XTERM 2
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# define SCROLLBAR_NEXT 3
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typedef struct {
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short beg, end; /* beg/end of slider sub-window */
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short top, bot; /* top/bot of slider */
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short state; /* scrollbar state */
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unsigned char type; /* scrollbar type (see above) */
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short width; /* scrollbar width */
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Window win;
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# ifdef PIXMAP_SCROLLBAR
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Window up_win;
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Window dn_win;
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Window sa_win;
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# endif
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} scrollBar_t;
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extern scrollBar_t scrollBar;
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extern int sb_shadow;
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/* prototypes */
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_XFUNCPROTOBEGIN
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extern int scrollbar_mapping(int);
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extern void scrollbar_reset(void);
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extern int scrollbar_show(int);
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_XFUNCPROTOEND
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/* macros */
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#define scrollbar_visible() (scrollBar.state)
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#define scrollbar_isMotion() (scrollBar.state == 'm')
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#define scrollbar_isUp() (scrollBar.state == 'U')
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#define scrollbar_isDn() (scrollBar.state == 'D')
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#define scrollbar_isUpDn() isupper (scrollBar.state)
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#define scrollbar_setNone() do { scrollBar.state = 1; } while (0)
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#define scrollbar_setMotion() do { scrollBar.state = 'm'; } while (0)
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#define scrollbar_setUp() do { scrollBar.state = 'U'; } while (0)
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#define scrollbar_setDn() do { scrollBar.state = 'D'; } while (0)
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#define scrollbar_above_slider(y) ((y) < scrollBar.top)
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#define scrollbar_below_slider(y) ((y) > scrollBar.bot)
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#define scrollbar_position(y) ((y) - scrollBar.beg)
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#define scrollbar_size() (scrollBar.end - scrollBar.beg)
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#define scrollbar_total_width() (scrollBar.width + 2 * sb_shadow)
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#define scrollbar_arrow_height() ((scrollBar.width + 1) + sb_shadow)
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#define scrollbar_anchor_max_height() ((menubar_visible()) ? (TermWin.height) : (TermWin.height - ((scrollBar.width + 1) + sb_shadow)))
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#define scrollbar_up_loc() ((scrollBar.type == SCROLLBAR_NEXT) ? (scrollBar.end + 1) : (sb_shadow))
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#define scrollbar_dn_loc() ((scrollBar.type == SCROLLBAR_NEXT) \
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? (scrollBar.end + scrollBar.width + 2) \
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: (scrollBar.end + 1))
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#define scrollbar_upButton(y) ((scrollBar.type == SCROLLBAR_NEXT && (y) > scrollBar.end && (y) <= scrollbar_dn_loc()) \
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|| (scrollBar.type != SCROLLBAR_NEXT && (y) < scrollBar.beg))
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#define scrollbar_dnButton(y) ((scrollBar.type == SCROLLBAR_NEXT && (y) > scrollbar_dn_loc()) \
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|| (scrollBar.type != SCROLLBAR_NEXT && (y) > scrollBar.end))
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#ifdef PIXMAP_SCROLLBAR
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# define isScrollbarWindow(w) ((scrollbar_is_pixmapped() && scrollbar_visible() && (w) == scrollBar.sa_win) \
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|| (!scrollbar_is_pixmapped() && scrollbar_visible() && (w) == scrollBar.win))
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# define scrollbar_upButtonWin(w) ((w) == scrollBar.up_win)
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# define scrollbar_dnButtonWin(w) ((w) == scrollBar.dn_win)
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# define scrollbar_is_pixmapped() (0)
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#else
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# define isScrollbarWindow(w) (scrollbar_visible() && (w) == scrollBar.win)
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# define scrollbar_is_pixmapped() (0)
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#endif
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#endif /* _SCROLLBAR_H */
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/*----------------------- end-of-file (C header) -----------------------*/
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