/*--------------------------------*-C-*---------------------------------* * File: scrollbar.c *----------------------------------------------------------------------* * $Id: scrollbar.C,v 1.2 2003/11/24 17:31:28 pcg Exp $ * * Copyright (c) 1997,1998 mj olesen * Copyright (c) 1998 Alfredo K. Kojima * - N*XTstep like scrollbars * Copyright (c) 1999-2001 Geoff Wing * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *----------------------------------------------------------------------*/ #include "../config.h" /* NECESSARY */ #include "rxvt.h" /* NECESSARY */ #include "scrollbar.intpro" /* PROTOS for internal routines */ /*----------------------------------------------------------------------*/ /* * Map or unmap a scrollbar. Returns non-zero upon change of state */ /* EXTPROTO */ int rxvt_scrollbar_mapping(pR_ int map) { int change = 0; #ifdef HAVE_SCROLLBARS if (map && !scrollbar_visible(R)) { scrollbar_setIdle(); if (!R->scrollBar.win) rxvt_Resize_scrollBar(aR); if (R->scrollBar.win) { XMapWindow(R->Xdisplay, R->scrollBar.win); change = 1; } } else if (!map && scrollbar_visible(R)) { R->scrollBar.state = 0; XUnmapWindow(R->Xdisplay, R->scrollBar.win); change = 1; } #endif return change; } /* EXTPROTO */ void rxvt_Resize_scrollBar(pR) { #ifdef HAVE_SCROLLBARS int delayed_init = 0; #define R_SCROLLBEG_XTERM 0 #define R_SCROLLEND_XTERM R->szHint.height #define R_SCROLLBEG_NEXT 0 #define R_SCROLLEND_NEXT R->szHint.height - (SB_BUTTON_TOTAL_HEIGHT + \ SB_PADDING) #define R_SCROLLBEG_RXVT (R->scrollBar.width + 1) + R->sb_shadow #define R_SCROLLEND_RXVT R->szHint.height - R_SCROLLBEG_RXVT - \ (2 * R->sb_shadow) #if defined(XTERM_SCROLLBAR) if (R->scrollBar.style == R_SB_XTERM) { R->scrollBar.beg = R_SCROLLBEG_XTERM; R->scrollBar.end = R_SCROLLEND_XTERM; R->scrollBar.update = rxvt_scrollbar_show_xterm; } #endif #if defined(NEXT_SCROLLBAR) if (R->scrollBar.style == R_SB_NEXT) { R->scrollBar.beg = R_SCROLLBEG_NEXT; R->scrollBar.end = R_SCROLLEND_NEXT; R->scrollBar.update = rxvt_scrollbar_show_next; } #endif #if defined(RXVT_SCROLLBAR) if (R->scrollBar.style == R_SB_RXVT) { R->scrollBar.beg = R_SCROLLBEG_RXVT; R->scrollBar.end = R_SCROLLEND_RXVT; R->scrollBar.update = rxvt_scrollbar_show_rxvt; } #endif if (!R->scrollBar.win) { /* create the scrollbar window */ R->scrollBar.win = XCreateSimpleWindow(R->Xdisplay, R->TermWin.parent[0], R->h->window_sb_x, 0, scrollbar_TotalWidth(), R->szHint.height, 0, R->PixColors[Color_fg], R->PixColors[Color_bg]); #ifdef DEBUG_X XStoreName(R->Xdisplay, R->scrollBar.win, "scrollbar"); #endif XDefineCursor(R->Xdisplay, R->scrollBar.win, R->h->pointer_leftptr); XSelectInput(R->Xdisplay, R->scrollBar.win, (ExposureMask | ButtonPressMask | ButtonReleaseMask | Button1MotionMask | Button2MotionMask | Button3MotionMask)); delayed_init = 1; } rxvt_scrollbar_show(aR_ 1); if (delayed_init) XMapWindow(R->Xdisplay, R->scrollBar.win); #endif } /* * Update current scrollbar view w.r.t. slider heights, etc. */ /* EXTPROTO */ int rxvt_scrollbar_show(pR_ int update) { int ret = 0; #ifdef HAVE_SCROLLBARS int top, bot, len, adj; if (!scrollbar_visible(R)) return 0; if (update) { top = (R->TermWin.nscrolled - R->TermWin.view_start); bot = top + (R->TermWin.nrow - 1); len = max((R->TermWin.nscrolled + (R->TermWin.nrow - 1)), 1); adj = (((bot - top) * scrollbar_size()) % len) > 0 ? 1 : 0; R->scrollBar.top = (R->scrollBar.beg + (top * scrollbar_size()) / len); R->h->scrollbar_len = ((bot - top) * scrollbar_size()) / len + scrollbar_minheight() + adj; R->scrollBar.bot = (R->scrollBar.top + R->h->scrollbar_len); /* no change */ if (R->scrollBar.top == R->h->last_top && R->scrollBar.bot == R->h->last_bot && (R->scrollBar.state == R->h->last_state || !scrollbar_isUpDn())) return 0; } ret = R->scrollBar.update(aR_ update, R->h->last_top, R->h->last_bot, R->h->scrollbar_len); R->h->last_top = R->scrollBar.top; R->h->last_bot = R->scrollBar.bot; R->h->last_state = R->scrollBar.state; #endif return ret; } /* EXTPROTO */ void rxvt_setup_scrollbar(pR_ const char *scrollalign, const char *scrollstyle, const char *thickness) { #ifdef HAVE_SCROLLBARS int i; short style, width; # if defined(RXVT_SCROLLBAR) || !(defined(NEXT_SCROLLBAR) || defined(XTERM_SCROLLBAR)) style = R_SB_RXVT; # else # ifdef NEXT_SCROLLBAR style = R_SB_NEXT; # elif defined(XTERM_SCROLLBAR) style = R_SB_XTERM; # endif # endif # if (defined(NEXT_SCROLLBAR) || defined(XTERM_SCROLLBAR)) if (scrollstyle) { # ifdef NEXT_SCROLLBAR if (STRNCASECMP(scrollstyle, "next", 4) == 0) style = R_SB_NEXT; # endif # ifdef XTERM_SCROLLBAR if (STRNCASECMP(scrollstyle, "xterm", 5) == 0) style = R_SB_XTERM; # endif } # endif if (style == R_SB_NEXT) width = SB_WIDTH_NEXT; else if (style == R_SB_XTERM) width = SB_WIDTH_XTERM; else /* if (style == R_SB_RXVT) */ width = SB_WIDTH_RXVT; if (style != R_SB_NEXT) /* dishonour request - for now */ if (thickness && (i = atoi(thickness)) >= SB_WIDTH_MINIMUM) width = min(i, SB_WIDTH_MAXIMUM); # if defined(RXVT_SCROLLBAR) if (!(R->Options & Opt_scrollBar_floating) && style == R_SB_RXVT) R->sb_shadow = SHADOW; # endif R->scrollBar.style = style; R->scrollBar.width = width; /* R->h->scrollbar_align = R_SB_ALIGN_CENTRE; */ if (scrollalign) { if (STRNCASECMP(scrollalign, "top", 3) == 0) R->h->scrollbar_align = R_SB_ALIGN_TOP; else if (STRNCASECMP(scrollalign, "bottom", 6) == 0) R->h->scrollbar_align = R_SB_ALIGN_BOTTOM; } #endif } /*----------------------- end-of-file (C source) -----------------------*/