540 lines
15 KiB
C
540 lines
15 KiB
C
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/*--------------------------------*-C-*---------------------------------*
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* File: scrollbar.c
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*
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* scrollbar routines
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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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static const char cvs_ident[] = "$Id$";
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#include "feature.h"
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#include "main.h"
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#include "scrollbar.h"
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#include "screen.h"
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#include "debug.h"
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#include "options.h"
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#ifdef PIXMAP_SCROLLBAR
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# include "pixmap.h"
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#endif
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/* extern functions referenced */
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/* extern variables referenced */
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/* extern variables declared here */
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#ifdef PIXMAP_SCROLLBAR
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scrollBar_t scrollBar =
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{0, 0, 0, 0, 0, SCROLLBAR_DEFAULT_TYPE, SB_WIDTH, None, None, None, None};
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#else
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scrollBar_t scrollBar =
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{0, 0, 0, 0, 0, SCROLLBAR_DEFAULT_TYPE, SB_WIDTH, None};
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#endif
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int sb_shadow;
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/*----------------------------------------------------------------------*
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*/
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static GC scrollbarGC;
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static short last_top = 0, last_bot = 0; /* old (drawn) values */
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#ifdef XTERM_SCROLLBAR /* bitmap scrollbar */
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static GC shadowGC;
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static char xterm_sb_bits[] =
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{0xaa, 0x0a, 0x55, 0x05}; /* 12x2 bitmap */
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#endif
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#if defined(MOTIF_SCROLLBAR) || defined(NEXT_SCROLLBAR)
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static GC topShadowGC, botShadowGC;
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/* draw triangular up button with a shadow of SHADOW (1 or 2) pixels */
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/* PROTO */
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void
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Draw_up_button(int x, int y, int state)
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{
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const unsigned int sz = (scrollBar.width), sz2 = (scrollBar.width / 2);
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XPoint pt[3];
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GC top = None, bot = None;
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# ifdef PIXMAP_SCROLLBAR
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Pixmap pixmap = upPixmap.pixmap;
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# endif
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D_SCROLLBAR(("Draw_up_button(%d, %d, %d)\n", x, y, state));
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switch (state) {
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case +1:
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top = topShadowGC;
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bot = botShadowGC;
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break;
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case -1:
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top = botShadowGC;
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bot = topShadowGC;
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break;
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case 0:
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default:
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top = bot = scrollbarGC;
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break;
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}
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# ifdef PIXMAP_SCROLLBAR
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if ((scrollbar_is_pixmapped()) && (pixmap != None)) {
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XSetWindowBackgroundPixmap(Xdisplay, scrollBar.up_win, pixmap);
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XClearWindow(Xdisplay, scrollBar.up_win);
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} else
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# endif
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{
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/* fill triangle */
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pt[0].x = x;
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pt[0].y = y + sz - 1;
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pt[1].x = x + sz - 1;
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pt[1].y = y + sz - 1;
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pt[2].x = x + sz2;
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pt[2].y = y;
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XFillPolygon(Xdisplay, scrollBar.win, scrollbarGC,
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pt, 3, Convex, CoordModeOrigin);
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/* draw base */
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XDrawLine(Xdisplay, scrollBar.win, bot,
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pt[0].x, pt[0].y, pt[1].x, pt[1].y);
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/* draw shadow */
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pt[1].x = x + sz2 - 1;
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pt[1].y = y;
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XDrawLine(Xdisplay, scrollBar.win, top,
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pt[0].x, pt[0].y, pt[1].x, pt[1].y);
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# if (SHADOW > 1)
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/* doubled */
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pt[0].x++;
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pt[0].y--;
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pt[1].y++;
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XDrawLine(Xdisplay, scrollBar.win, top,
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pt[0].x, pt[0].y, pt[1].x, pt[1].y);
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# endif
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/* draw shadow */
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pt[0].x = x + sz2;
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pt[0].y = y;
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pt[1].x = x + sz - 1;
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pt[1].y = y + sz - 1;
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XDrawLine(Xdisplay, scrollBar.win, bot,
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pt[0].x, pt[0].y, pt[1].x, pt[1].y);
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# if (SHADOW > 1)
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/* doubled */
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pt[0].y++;
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pt[1].x--;
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pt[1].y--;
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XDrawLine(Xdisplay, scrollBar.win, bot,
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pt[0].x, pt[0].y, pt[1].x, pt[1].y);
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# endif
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}
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}
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/* draw triangular down button with a shadow of SHADOW (1 or 2) pixels */
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/* PROTO */
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void
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Draw_dn_button(int x, int y, int state)
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{
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const unsigned int sz = (scrollBar.width), sz2 = (scrollBar.width / 2);
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XPoint pt[3];
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GC top = None, bot = None;
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# ifdef PIXMAP_SCROLLBAR
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Pixmap pixmap = dnPixmap.pixmap;
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# endif
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D_SCROLLBAR(("Draw_dn_button(%d, %d, %d)\n", x, y, state));
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switch (state) {
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case +1:
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top = topShadowGC;
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bot = botShadowGC;
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break;
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case -1:
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top = botShadowGC;
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bot = topShadowGC;
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break;
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case 0:
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default:
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top = bot = scrollbarGC;
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break;
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}
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# ifdef PIXMAP_SCROLLBAR
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if ((scrollbar_is_pixmapped()) && (pixmap != None)) {
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XSetWindowBackgroundPixmap(Xdisplay, scrollBar.up_win, pixmap);
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XClearWindow(Xdisplay, scrollBar.dn_win);
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} else
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# endif
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{
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/* fill triangle */
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pt[0].x = x;
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pt[0].y = y;
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pt[1].x = x + sz - 1;
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pt[1].y = y;
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pt[2].x = x + sz2;
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pt[2].y = y + sz;
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XFillPolygon(Xdisplay, scrollBar.win, scrollbarGC,
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pt, 3, Convex, CoordModeOrigin);
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/* draw base */
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XDrawLine(Xdisplay, scrollBar.win, top,
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pt[0].x, pt[0].y, pt[1].x, pt[1].y);
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/* draw shadow */
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pt[1].x = x + sz2 - 1;
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pt[1].y = y + sz - 1;
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XDrawLine(Xdisplay, scrollBar.win, top,
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pt[0].x, pt[0].y, pt[1].x, pt[1].y);
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# if (SHADOW > 1)
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/* doubled */
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pt[0].x++;
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pt[0].y++;
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pt[1].y--;
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XDrawLine(Xdisplay, scrollBar.win, top,
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pt[0].x, pt[0].y, pt[1].x, pt[1].y);
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# endif
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/* draw shadow */
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pt[0].x = x + sz2;
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pt[0].y = y + sz - 1;
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pt[1].x = x + sz - 1;
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pt[1].y = y;
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XDrawLine(Xdisplay, scrollBar.win, bot,
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pt[0].x, pt[0].y, pt[1].x, pt[1].y);
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# if (SHADOW > 1)
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/* doubled */
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pt[0].y--;
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pt[1].x--;
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pt[1].y++;
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XDrawLine(Xdisplay, scrollBar.win, bot,
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pt[0].x, pt[0].y, pt[1].x, pt[1].y);
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# endif
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}
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}
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#endif /* MOTIF_SCROLLBAR || NEXT_SCROLLBAR */
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/* PROTO */
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int
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scrollbar_mapping(int map)
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{
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int change = 0;
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D_SCROLLBAR(("scrollbar_mapping(%d)\n", map));
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if (map && !scrollbar_visible()) {
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scrollBar.state = 1;
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XMapWindow(Xdisplay, scrollBar.win);
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#ifdef PIXMAP_SCROLLBAR
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if (scrollbar_is_pixmapped()) {
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XMapWindow(Xdisplay, scrollBar.up_win);
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XMapWindow(Xdisplay, scrollBar.dn_win);
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XMapWindow(Xdisplay, scrollBar.sa_win);
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}
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#endif
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change = 1;
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} else if (!map && scrollbar_visible()) {
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scrollBar.state = 0;
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#ifdef PIXMAP_SCROLLBAR
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if (scrollbar_is_pixmapped()) {
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XUnmapWindow(Xdisplay, scrollBar.up_win);
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XUnmapWindow(Xdisplay, scrollBar.dn_win);
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XUnmapWindow(Xdisplay, scrollBar.sa_win);
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}
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#endif
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XUnmapWindow(Xdisplay, scrollBar.win);
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change = 1;
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}
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return change;
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}
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void
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scrollbar_reset(void)
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{
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if (scrollbarGC != None) {
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XFreeGC(Xdisplay, scrollbarGC);
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scrollbarGC = None;
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}
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if (topShadowGC != None) {
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XFreeGC(Xdisplay, topShadowGC);
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topShadowGC = None;
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}
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if (botShadowGC != None) {
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XFreeGC(Xdisplay, botShadowGC);
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botShadowGC = None;
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}
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if (shadowGC != None) {
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XFreeGC(Xdisplay, shadowGC);
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shadowGC = None;
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}
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last_top = last_bot = 0;
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if (scrollBar.type == SCROLLBAR_XTERM) {
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sb_shadow = 0;
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} else {
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sb_shadow = (Options & Opt_scrollBar_floating) ? 0 : SHADOW;
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}
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}
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int
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scrollbar_show(int mouseoffset)
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{
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static short sb_width; /* old (drawn) values */
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unsigned char xsb = 0, force_update = 0;
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#ifdef CHANGE_SCROLLCOLOR_ON_FOCUS
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static int focus = -1;
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#endif
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if (!scrollbar_visible())
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return 0;
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D_SCROLLBAR(("scrollbar_show(%d)\n", mouseoffset));
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if (scrollbarGC == None) {
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XGCValues gcvalue;
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#ifdef XTERM_SCROLLBAR
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if (scrollBar.type == SCROLLBAR_XTERM) {
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sb_width = scrollBar.width - 1;
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gcvalue.stipple = XCreateBitmapFromData(Xdisplay, scrollBar.win,
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xterm_sb_bits, 12, 2);
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if (!gcvalue.stipple) {
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print_error("can't create bitmap");
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exit(EXIT_FAILURE);
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}
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gcvalue.fill_style = FillOpaqueStippled;
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gcvalue.foreground = PixColors[fgColor];
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gcvalue.background = PixColors[bgColor];
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scrollbarGC = XCreateGC(Xdisplay, scrollBar.win,
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GCForeground | GCBackground |
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GCFillStyle | GCStipple,
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&gcvalue);
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gcvalue.foreground = PixColors[borderColor];
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shadowGC = XCreateGC(Xdisplay, scrollBar.win, GCForeground, &gcvalue);
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}
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#endif /* XTERM_SCROLLBAR */
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#if defined(MOTIF_SCROLLBAR) || defined(NEXT_SCROLLBAR)
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if (scrollBar.type == SCROLLBAR_MOTIF || scrollBar.type == SCROLLBAR_NEXT) {
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sb_width = scrollBar.width;
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# ifdef KEEP_SCROLLCOLOR
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gcvalue.foreground = (Xdepth <= 2 ? PixColors[fgColor]
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: PixColors[scrollColor]);
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# else
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gcvalue.foreground = PixColors[fgColor];
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# endif
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scrollbarGC = XCreateGC(Xdisplay, scrollBar.win, GCForeground,
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&gcvalue);
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if ((sb_shadow) && (!(scrollbar_is_pixmapped()))) {
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XSetWindowBackground(Xdisplay, scrollBar.win, gcvalue.foreground);
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XClearWindow(Xdisplay, scrollBar.win);
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} else if (Options & Opt_scrollBar_floating) {
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if (!(Options & Opt_pixmapTrans)) {
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if (background_is_pixmap()) {
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XSetWindowBackground(Xdisplay, scrollBar.win, PixColors[scrollColor]);
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} else {
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XSetWindowBackground(Xdisplay, scrollBar.win, PixColors[bgColor]);
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}
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}
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XClearWindow(Xdisplay, scrollBar.win);
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}
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# ifdef KEEP_SCROLLCOLOR
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gcvalue.foreground = PixColors[topShadowColor];
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# else /* KEEP_SCROLLCOLOR */
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gcvalue.foreground = PixColors[bgColor];
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# endif /* KEEP_SCROLLCOLOR */
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topShadowGC = XCreateGC(Xdisplay, scrollBar.win,
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GCForeground,
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&gcvalue);
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# ifdef KEEP_SCROLLCOLOR
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gcvalue.foreground = PixColors[bottomShadowColor];
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# else /* KEEP_SCROLLCOLOR */
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gcvalue.foreground = PixColors[bgColor];
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# endif /* KEEP_SCROLLCOLOR */
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botShadowGC = XCreateGC(Xdisplay, scrollBar.win,
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GCForeground,
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&gcvalue);
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}
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#endif /* MOTIF_SCROLLBAR || NEXT_SCROLLBAR */
|
||
|
|
}
|
||
|
|
#if defined(CHANGE_SCROLLCOLOR_ON_FOCUS) && (defined(MOTIF_SCROLLBAR) || defined(NEXT_SCROLLBAR))
|
||
|
|
if (scrollBar.type == SCROLLBAR_MOTIF || scrollBar.type == SCROLLBAR_NEXT) {
|
||
|
|
if (focus != TermWin.focus) {
|
||
|
|
XGCValues gcvalue;
|
||
|
|
|
||
|
|
focus = TermWin.focus;
|
||
|
|
gcvalue.foreground = PixColors[focus ? scrollColor : unfocusedScrollColor];
|
||
|
|
# ifdef PIXMAP_OFFSET
|
||
|
|
if (!((Options & Opt_pixmapTrans) && (Options & Opt_scrollBar_floating))) {
|
||
|
|
# endif
|
||
|
|
XSetWindowBackground(Xdisplay, scrollBar.win, gcvalue.foreground);
|
||
|
|
XClearWindow(Xdisplay, scrollBar.win);
|
||
|
|
# ifdef PIXMAP_OFFSET
|
||
|
|
}
|
||
|
|
# endif /* PIXMAP_OFFSET */
|
||
|
|
XChangeGC(Xdisplay, scrollbarGC, GCForeground,
|
||
|
|
&gcvalue);
|
||
|
|
|
||
|
|
gcvalue.foreground = PixColors[focus ? topShadowColor : unfocusedTopShadowColor];
|
||
|
|
XChangeGC(Xdisplay, topShadowGC,
|
||
|
|
GCForeground,
|
||
|
|
&gcvalue);
|
||
|
|
gcvalue.foreground = PixColors[focus ? bottomShadowColor : unfocusedBottomShadowColor];
|
||
|
|
XChangeGC(Xdisplay, botShadowGC,
|
||
|
|
GCForeground,
|
||
|
|
&gcvalue);
|
||
|
|
force_update = 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#endif /* CHANGE_SCROLLCOLOR_ON_FOCUS && (MOTIF_SCROLLBAR || NEXT_SCROLLBAR) */
|
||
|
|
|
||
|
|
if (mouseoffset) {
|
||
|
|
int top = (TermWin.nscrolled - TermWin.view_start);
|
||
|
|
int bot = top + (TermWin.nrow - 1);
|
||
|
|
int len = max((TermWin.nscrolled + (TermWin.nrow - 1)), 1);
|
||
|
|
|
||
|
|
scrollBar.top = (scrollBar.beg + (top * scrollbar_size()) / len);
|
||
|
|
scrollBar.bot = (scrollBar.beg + (bot * scrollbar_size()) / len);
|
||
|
|
|
||
|
|
if (rs_min_anchor_size && scrollBar.type != SCROLLBAR_XTERM) {
|
||
|
|
if ((scrollbar_size() > rs_min_anchor_size) && (scrollBar.bot - scrollBar.top < rs_min_anchor_size)) {
|
||
|
|
|
||
|
|
int grab_point = scrollBar.top + mouseoffset;
|
||
|
|
|
||
|
|
if (grab_point - mouseoffset < scrollBar.beg) {
|
||
|
|
scrollBar.top = scrollBar.beg;
|
||
|
|
scrollBar.bot = rs_min_anchor_size + scrollBar.beg;
|
||
|
|
} else if (scrollBar.top + rs_min_anchor_size > scrollBar.end) {
|
||
|
|
scrollBar.top = scrollBar.end - rs_min_anchor_size;
|
||
|
|
scrollBar.bot = scrollBar.end;
|
||
|
|
} else {
|
||
|
|
scrollBar.top = grab_point - mouseoffset;
|
||
|
|
scrollBar.bot = scrollBar.top + rs_min_anchor_size;
|
||
|
|
}
|
||
|
|
if (scrollBar.bot == scrollBar.end) {
|
||
|
|
scr_move_to(scrollBar.end, scrollbar_size());
|
||
|
|
scr_refresh(SMOOTH_REFRESH);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/* no change */
|
||
|
|
if (!force_update && (scrollBar.top == last_top) && (scrollBar.bot == last_bot))
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
#ifdef XTERM_SCROLLBAR
|
||
|
|
xsb = ((scrollBar.type == SCROLLBAR_XTERM) && (Options & Opt_scrollBar_right)) ? 1 : 0;
|
||
|
|
#endif
|
||
|
|
if (last_top < scrollBar.top) {
|
||
|
|
#ifdef PIXMAP_SCROLLBAR
|
||
|
|
if (scrollbar_is_pixmapped()) {
|
||
|
|
D_SCROLLBAR(("ATTN: XClearArea() #1, going down\n"));
|
||
|
|
XClearArea(Xdisplay, scrollBar.win,
|
||
|
|
sb_shadow + xsb, last_top,
|
||
|
|
sb_width, (scrollBar.top - last_top),
|
||
|
|
False);
|
||
|
|
XMoveResizeWindow(Xdisplay, scrollBar.sa_win,
|
||
|
|
0, scrollBar.top,
|
||
|
|
scrollbar_total_width(),
|
||
|
|
(scrollBar.bot - scrollBar.top));
|
||
|
|
} else
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
D_SCROLLBAR(("ATTN: XClearArea() #2\n"));
|
||
|
|
XClearArea(Xdisplay, scrollBar.win,
|
||
|
|
sb_shadow + xsb, last_top,
|
||
|
|
sb_width, (scrollBar.top - last_top),
|
||
|
|
False);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (scrollBar.bot < last_bot) {
|
||
|
|
#ifdef PIXMAP_SCROLLBAR
|
||
|
|
if (scrollbar_is_pixmapped()) {
|
||
|
|
D_SCROLLBAR(("ATTN: XClearArea() #3, going up\n"));
|
||
|
|
XClearArea(Xdisplay, scrollBar.win,
|
||
|
|
sb_shadow + xsb, scrollBar.bot,
|
||
|
|
sb_width, (last_bot - scrollBar.bot),
|
||
|
|
False);
|
||
|
|
XMoveResizeWindow(Xdisplay, scrollBar.sa_win,
|
||
|
|
0, scrollBar.top,
|
||
|
|
scrollbar_total_width(),
|
||
|
|
(scrollBar.bot - scrollBar.top));
|
||
|
|
} else
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
D_SCROLLBAR(("ATTN: XClearArea() #4\n"));
|
||
|
|
XClearArea(Xdisplay, scrollBar.win,
|
||
|
|
sb_shadow + xsb, scrollBar.bot,
|
||
|
|
sb_width, (last_bot - scrollBar.bot),
|
||
|
|
False);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
last_top = scrollBar.top;
|
||
|
|
last_bot = scrollBar.bot;
|
||
|
|
|
||
|
|
/* scrollbar slider */
|
||
|
|
#ifdef XTERM_SCROLLBAR
|
||
|
|
if (scrollBar.type == SCROLLBAR_XTERM) {
|
||
|
|
XFillRectangle(Xdisplay, scrollBar.win, scrollbarGC,
|
||
|
|
xsb + 1, scrollBar.top,
|
||
|
|
sb_width - 2, (scrollBar.bot - scrollBar.top));
|
||
|
|
XDrawLine(Xdisplay, scrollBar.win, shadowGC,
|
||
|
|
xsb ? 0 : sb_width, scrollBar.beg, xsb ? 0 : sb_width, scrollBar.end);
|
||
|
|
}
|
||
|
|
#endif /* XTERM_SCROLLBAR */
|
||
|
|
|
||
|
|
#if defined(MOTIF_SCROLLBAR) || defined(NEXT_SCROLLBAR)
|
||
|
|
if (scrollBar.type == SCROLLBAR_MOTIF || scrollBar.type == SCROLLBAR_NEXT) {
|
||
|
|
# ifdef PIXMAP_SCROLLBAR
|
||
|
|
if ((scrollbar_is_pixmapped()) && (saPixmap.pixmap != None)) {
|
||
|
|
D_SCROLLBAR(("ATTN: XCopyArea(%dx%d)", sb_width, (scrollBar.bot - scrollBar.top)));
|
||
|
|
XCopyArea(Xdisplay, saPixmap.pixmap, scrollBar.sa_win, scrollbarGC,
|
||
|
|
0, 0, sb_width, (scrollBar.bot - scrollBar.top),
|
||
|
|
0, scrollBar.top);
|
||
|
|
XClearArea(Xdisplay, scrollBar.sa_win, 0, scrollBar.top,
|
||
|
|
sb_width, (scrollBar.bot - scrollBar.top), False);
|
||
|
|
} else
|
||
|
|
# endif
|
||
|
|
{
|
||
|
|
XFillRectangle(Xdisplay, scrollBar.win, scrollbarGC,
|
||
|
|
sb_shadow, scrollBar.top,
|
||
|
|
sb_width, (scrollBar.bot - scrollBar.top));
|
||
|
|
}
|
||
|
|
if ((sb_shadow) && (!(scrollbar_is_pixmapped()))) {
|
||
|
|
/* trough shadow */
|
||
|
|
Draw_Shadow(scrollBar.win, botShadowGC, topShadowGC, 0, 0,
|
||
|
|
(sb_width + 2 * sb_shadow),
|
||
|
|
scrollBar.end + ((scrollBar.type == SCROLLBAR_NEXT) ? (2 * (sb_width + 1) + sb_shadow) : ((sb_width + 1) + sb_shadow)));
|
||
|
|
}
|
||
|
|
/* shadow for scrollbar slider */
|
||
|
|
if (!(scrollbar_is_pixmapped())) {
|
||
|
|
Draw_Shadow(scrollBar.win, topShadowGC, botShadowGC, sb_shadow, scrollBar.top, sb_width,
|
||
|
|
(scrollBar.bot - scrollBar.top));
|
||
|
|
}
|
||
|
|
/*
|
||
|
|
* Redraw scrollbar arrows
|
||
|
|
*/
|
||
|
|
Draw_up_button(sb_shadow, scrollbar_up_loc(), (scrollbar_isUp()? -1 : +1));
|
||
|
|
Draw_dn_button(sb_shadow, scrollbar_dn_loc(), (scrollbar_isDn()? -1 : +1));
|
||
|
|
}
|
||
|
|
#endif /* MOTIF_SCROLLBAR || NEXT_SCROLLBAR */
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|