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/*----------------------------------------------------------------------* |
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* File: scrollbar.C |
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*----------------------------------------------------------------------* |
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* |
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* Copyright (c) 1997,1998 mj olesen <olesen@me.QueensU.CA> |
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* Copyright (c) 1998 Alfredo K. Kojima <kojima@windowmaker.org> |
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* - N*XTstep like scrollbars |
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* Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com> |
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* Copyright (c) 2004-2006 Marc Lehmann <pcg@goof.com> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*----------------------------------------------------------------------*/ |
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|
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#include "../config.h" /* NECESSARY */ |
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#include "rxvt.h" /* NECESSARY */ |
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|
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/*----------------------------------------------------------------------*/ |
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|
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/* |
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* Map or unmap a scrollbar. Returns non-zero upon change of state |
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*/ |
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int |
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scrollBar_t::map (int map) |
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{ |
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int change = 0; |
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|
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if (map) |
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{ |
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state = STATE_IDLE; |
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|
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if (!win) |
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resize (); |
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|
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if (win) |
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{ |
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XMapWindow (term->dpy, win); |
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change = 1; |
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} |
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} |
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else |
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{ |
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state = 0; |
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XUnmapWindow (term->dpy, win); |
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change = 1; |
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} |
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|
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return change; |
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} |
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|
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void |
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scrollBar_t::resize () |
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{ |
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int delayed_init = 0; |
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int window_sb_x = 0; |
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|
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if (term->option (Opt_scrollBar_right)) |
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window_sb_x = term->szHint.width - total_width (); |
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|
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update_data (); |
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|
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if (!win) |
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{ |
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/* create the scrollbar window */ |
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win = XCreateSimpleWindow (term->dpy, |
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term->parent[0], |
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window_sb_x, 0, |
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total_width (), |
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term->szHint.height, |
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0, |
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term->pix_colors[Color_fg], |
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term->pix_colors[Color_border]); |
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XDefineCursor (term->dpy, win, leftptr_cursor); |
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|
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XSelectInput (term->dpy, win, |
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ExposureMask | ButtonPressMask | ButtonReleaseMask |
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| Button1MotionMask | Button2MotionMask |
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| Button3MotionMask); |
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term->scrollbar_ev.start (term->display, win); |
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|
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delayed_init = 1; |
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} |
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else |
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XMoveResizeWindow (term->dpy, win, |
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window_sb_x, 0, |
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total_width (), term->szHint.height); |
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|
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show (1); |
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|
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if (delayed_init) |
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XMapWindow (term->dpy, win); |
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} |
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|
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/* |
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* Update current scrollbar view w.r.t. slider heights, etc. |
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*/ |
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int |
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scrollBar_t::show (int refresh) |
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{ |
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int ret; |
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|
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if (!state) |
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return 0; |
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|
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if (refresh) |
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{ |
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int sb_top = term->view_start - term->top_row; |
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int sb_bot = sb_top + (term->nrow - 1); |
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int sb_len = max (term->nrow - 1 - term->top_row, 1); |
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int sb_size = (sb_bot - sb_top) * size (); |
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|
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top = beg + (sb_top * size ()) / sb_len; |
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len = sb_size / sb_len + min_height () + (sb_size % sb_len > 0); |
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bot = top + len; |
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/* no change */ |
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if (top == last_top |
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&& bot == last_bot |
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&& (state == last_state |
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|| !(state == STATE_UP || state == STATE_DOWN))) |
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return 0; |
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} |
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|
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ret = (term->*update) (refresh, last_top, last_bot, len); |
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|
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last_top = top; |
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last_bot = bot; |
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last_state = state; |
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|
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return ret; |
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} |
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|
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void |
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scrollBar_t::setup (rxvt_term *term) |
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{ |
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int i; |
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short style, width; |
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const char *scrollalign, *scrollstyle, *thickness; |
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|
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this->term = term; |
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scrollalign = term->rs[Rs_scrollBar_align]; |
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scrollstyle = term->rs[Rs_scrollstyle]; |
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thickness = term->rs[Rs_scrollBar_thickness]; |
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|
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# if defined(RXVT_SCROLLBAR) |
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style = R_SB_RXVT; |
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# elif defined(XTERM_SCROLLBAR) |
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style = R_SB_XTERM; |
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# elif defined(NEXT_SCROLLBAR) |
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style = R_SB_NEXT; |
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# elif defined(PLAIN_SCROLLBAR) |
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style = R_SB_PLAIN; |
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#else |
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style = R_SB_RXVT; |
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# endif |
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|
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# if (defined(NEXT_SCROLLBAR) || defined(XTERM_SCROLLBAR) || defined(PLAIN_SCROLLBAR)) |
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if (scrollstyle) |
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{ |
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# ifdef NEXT_SCROLLBAR |
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if (strncasecmp (scrollstyle, "next", 4) == 0) |
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style = R_SB_NEXT; |
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# endif |
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# ifdef XTERM_SCROLLBAR |
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if (strncasecmp (scrollstyle, "xterm", 5) == 0) |
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style = R_SB_XTERM; |
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# endif |
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# ifdef PLAIN_SCROLLBAR |
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if (strncasecmp (scrollstyle, "plain", 5) == 0) |
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style = R_SB_PLAIN; |
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# endif |
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|
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} |
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# endif |
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if (style == R_SB_NEXT) |
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width = SB_WIDTH_NEXT; |
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else if (style == R_SB_XTERM) |
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width = SB_WIDTH_XTERM; |
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else if (style == R_SB_PLAIN) |
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width = SB_WIDTH_PLAIN; |
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else /* if (style == R_SB_RXVT) */ |
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width = SB_WIDTH_RXVT; |
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|
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if (style != R_SB_NEXT) /* dishonour request - for now */ |
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if (thickness && (i = atoi (thickness)) >= SB_WIDTH_MINIMUM) |
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width = min (i, SB_WIDTH_MAXIMUM); |
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|
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# ifdef RXVT_SCROLLBAR |
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if (! term->option (Opt_scrollBar_floating) && style == R_SB_RXVT) |
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shadow = SHADOW_WIDTH; |
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# endif |
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|
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this->style = style; |
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this->width = width; |
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|
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/* align = R_SB_ALIGN_CENTRE; */ |
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if (scrollalign) |
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{ |
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if (strncasecmp (scrollalign, "top", 3) == 0) |
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align = R_SB_ALIGN_TOP; |
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else if (strncasecmp (scrollalign, "bottom", 6) == 0) |
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align = R_SB_ALIGN_BOTTOM; |
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} |
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last_bot = last_state = -1; |
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/* cursor scrollBar: Black-on-White */ |
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leftptr_cursor = XCreateFontCursor (term->dpy, XC_left_ptr); |
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} |
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|
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void |
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scrollBar_t::update_data () |
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{ |
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#if defined(PLAIN_SCROLLBAR) |
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if (style == R_SB_PLAIN) |
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{ |
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beg = 0; |
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end = term->szHint.height; |
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update = &rxvt_term::scrollbar_show_plain; |
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} |
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#endif |
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#if defined(XTERM_SCROLLBAR) |
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if (style == R_SB_XTERM) |
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{ |
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beg = 0; |
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end = term->szHint.height; |
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update = &rxvt_term::scrollbar_show_xterm; |
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} |
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#endif |
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#if defined(NEXT_SCROLLBAR) |
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if (style == R_SB_NEXT) |
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{ |
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beg = 0; |
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end = term->szHint.height - (SB_BUTTON_TOTAL_HEIGHT + SB_PADDING); |
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update = &rxvt_term::scrollbar_show_next; |
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} |
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#endif |
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#if defined(RXVT_SCROLLBAR) |
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if (style == R_SB_RXVT) |
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{ |
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beg = (width + 1) + shadow; |
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end = term->szHint.height - beg - (2 * shadow); |
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update = &rxvt_term::scrollbar_show_rxvt; |
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} |
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#endif |
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} |
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|
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/*----------------------- end-of-file (C source) -----------------------*/ |
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|
