rxvt-unicode/src/scrollbar.C

/*----------------------------------------------------------------------*
 * File:        scrollbar.C
 *----------------------------------------------------------------------*
 *
 * Copyright (c) 1997,1998 mj olesen <olesen@me.QueensU.CA>
 * Copyright (c) 1998      Alfredo K. Kojima <kojima@windowmaker.org>
 *                              - N*XTstep like scrollbars
 * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com>
 * Copyright (c) 2004-2006 Marc Lehmann <schmorp@schmorp.de>
 *
 * 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 */

/*----------------------------------------------------------------------*/

/*
 * Map or unmap a scrollbar.  Returns non-zero upon change of state
 */
int
scrollBar_t::map (int map)
{
  int change = 0;

  if (map)
    {
      state = STATE_IDLE;

      if (!win)
        resize ();

      if (win)
        {
          XMapWindow (term->dpy, win);
          change = 1;
        }
    }
  else
    {
      state = 0;
      XUnmapWindow (term->dpy, win);
      change = 1;
    }

  return change;
}

void
scrollBar_t::resize ()
{
  int delayed_init = 0;
  int window_sb_x = 0;

  if (term->option (Opt_scrollBar_right))
    window_sb_x = term->szHint.width - total_width ();

  update_data ();

  if (!win)
    {
      /* create the scrollbar window */
      win = XCreateSimpleWindow (term->dpy,
                                 term->parent,
                                 window_sb_x, 0,
                                 total_width (),
                                 term->szHint.height,
                                 0,
                                 term->pix_colors[Color_fg],
                                 term->pix_colors[Color_border]);
      XDefineCursor (term->dpy, win, leftptr_cursor);

      XSelectInput (term->dpy, win,
                   ExposureMask | ButtonPressMask | ButtonReleaseMask
                   | Button1MotionMask | Button2MotionMask
                   | Button3MotionMask);
      term->scrollbar_ev.start (term->display, win);

      delayed_init = 1;
    }
  else
    XMoveResizeWindow (term->dpy, win,
                       window_sb_x, 0,
                       total_width (), term->szHint.height);

  show (1);

  if (delayed_init)
    XMapWindow (term->dpy, win);
}

/*
 * Update current scrollbar view w.r.t. slider heights, etc.
 */
int
scrollBar_t::show (int refresh)
{
  int ret;

  if (!state)
    return 0;

  if (refresh)
    {
      int sb_top = term->view_start - term->top_row;
      int sb_bot = sb_top + (term->nrow - 1);
      int sb_len = max (term->nrow - 1 - term->top_row, 1);
      int sb_size = (sb_bot - sb_top) * size ();

      top = beg + (sb_top * size ()) / sb_len;
      bot = top + sb_size / sb_len + min_height () + (sb_size % sb_len > 0);
      /* no change */
      if (top == last_top
          && bot == last_bot
          && (state == last_state
              || !(state == STATE_UP || state == STATE_DOWN)))
        return 0;
    }

  ret = (this->*update) (refresh);

  last_top = top;
  last_bot = bot;
  last_state = state;

  return ret;
}

void
scrollBar_t::setup (rxvt_term *term)
{
  int             i;
  short           style, width;
  const char *scrollalign, *scrollstyle, *thickness;

  this->term = term;
  scrollalign = term->rs[Rs_scrollBar_align];
  scrollstyle = term->rs[Rs_scrollstyle];
  thickness = term->rs[Rs_scrollBar_thickness];

# if defined(RXVT_SCROLLBAR)
  style = R_SB_RXVT;
# elif defined(XTERM_SCROLLBAR)
  style = R_SB_XTERM;
# elif defined(NEXT_SCROLLBAR)
  style = R_SB_NEXT;
# elif defined(PLAIN_SCROLLBAR)
  style = R_SB_PLAIN;
#else
  style = R_SB_RXVT;
# endif

# if (defined(NEXT_SCROLLBAR) || defined(XTERM_SCROLLBAR) || defined(PLAIN_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
#  ifdef PLAIN_SCROLLBAR
      if (strncasecmp (scrollstyle, "plain", 5) == 0)
        style = R_SB_PLAIN;
#  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_PLAIN)
    width = SB_WIDTH_PLAIN;
  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);

# ifdef RXVT_SCROLLBAR
  if (! term->option (Opt_scrollBar_floating) && style == R_SB_RXVT)
    shadow = SHADOW_WIDTH;
# endif

  this->style = style;
  this->width = width;

  /* align = R_SB_ALIGN_CENTRE; */
  if (scrollalign)
    {
      if (strncasecmp (scrollalign, "top", 3) == 0)
        align = R_SB_ALIGN_TOP;
      else if (strncasecmp (scrollalign, "bottom", 6) == 0)
        align = R_SB_ALIGN_BOTTOM;
    }
  last_bot = last_state = -1;
  /* cursor scrollBar: Black-on-White */
  leftptr_cursor = XCreateFontCursor (term->dpy, XC_left_ptr);
}

void
scrollBar_t::destroy ()
{
#ifdef XTERM_SCROLLBAR
  if (xscrollbarGC) XFreeGC (term->dpy, xscrollbarGC);
  if (ShadowGC)     XFreeGC (term->dpy, ShadowGC);
#endif
#ifdef PLAIN_SCROLLBAR
  if (pscrollbarGC) XFreeGC (term->dpy, pscrollbarGC);
#endif
#ifdef NEXT_SCROLLBAR
  if (blackGC)      XFreeGC (term->dpy, blackGC);
  if (whiteGC)      XFreeGC (term->dpy, whiteGC);
  if (grayGC)       XFreeGC (term->dpy, grayGC);
  if (darkGC)       XFreeGC (term->dpy, darkGC);
  if (stippleGC)    XFreeGC (term->dpy, stippleGC);
  if (dimple)       XFreePixmap (term->dpy, dimple);
  if (upArrow)      XFreePixmap (term->dpy, upArrow);
  if (downArrow)    XFreePixmap (term->dpy, downArrow);
  if (upArrowHi)    XFreePixmap (term->dpy, upArrowHi);
  if (downArrowHi)  XFreePixmap (term->dpy, downArrowHi);
#endif
#ifdef RXVT_SCROLLBAR
  if (topShadowGC)  XFreeGC (term->dpy, topShadowGC);
  if (botShadowGC)  XFreeGC (term->dpy, botShadowGC);
  if (scrollbarGC)  XFreeGC (term->dpy, scrollbarGC);
#endif
}

void
scrollBar_t::update_data ()
{
#if defined(PLAIN_SCROLLBAR)
  if (style == R_SB_PLAIN)
    {
      beg = 0;
      end = term->szHint.height;
      update = &scrollBar_t::show_plain;
    }
#endif
#if defined(XTERM_SCROLLBAR)
  if (style == R_SB_XTERM)
    {
      beg = 0;
      end = term->szHint.height;
      update = &scrollBar_t::show_xterm;
    }
#endif
#if defined(NEXT_SCROLLBAR)
  if (style == R_SB_NEXT)
    {
      beg = 0;
      end = term->szHint.height - (SB_BUTTON_TOTAL_HEIGHT + SB_PADDING);
      update = &scrollBar_t::show_next;
    }
#endif
#if defined(RXVT_SCROLLBAR)
  if (style == R_SB_RXVT)
    {
      beg = (width + 1) + shadow;
      end = term->szHint.height - beg - (2 * shadow);
      update = &scrollBar_t::show_rxvt;
    }
#endif
}

/*----------------------- end-of-file (C source) -----------------------*/

Revision:	1.66
Committed:	Thu Apr 7 12:19:41 2011 UTC (13 years, 1 month ago) by sf-exg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-9_11, rel-9_12
Changes since 1.65:	+1 -1 lines
Log Message:	Change type of 'parent' from array of Window to Window as all the elements except the first are unused.
#	User	Rev	Content
1	root	1.38	/----------------------------------------------------------------------
2	pcg	1.15	* File: scrollbar.C
3	pcg	1.1	----------------------------------------------------------------------
4			*
5			* Copyright (c) 1997,1998 mj olesen <olesen@me.QueensU.CA>
6			* Copyright (c) 1998 Alfredo K. Kojima <kojima@windowmaker.org>
7			* - N*XTstep like scrollbars
8			* Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com>
9	root	1.64	* Copyright (c) 2004-2006 Marc Lehmann <schmorp@schmorp.de>
10	pcg	1.1	*
11			* This program is free software; you can redistribute it and/or modify
12			* it under the terms of the GNU General Public License as published by
13			* the Free Software Foundation; either version 2 of the License, or
14			* (at your option) any later version.
15			*
16			* This program is distributed in the hope that it will be useful,
17			* but WITHOUT ANY WARRANTY; without even the implied warranty of
18			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19			* GNU General Public License for more details.
20			*
21			* You should have received a copy of the GNU General Public License
22			* along with this program; if not, write to the Free Software
23			* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24			----------------------------------------------------------------------/
25
26			#include "../config.h" /* NECESSARY */
27			#include "rxvt.h" /* NECESSARY */
28
29			/----------------------------------------------------------------------/
30
31			/*
32			* Map or unmap a scrollbar. Returns non-zero upon change of state
33			*/
34			int
35	ayin	1.60	scrollBar_t::map (int map)
36	pcg	1.1	{
37	root	1.35	int change = 0;
38	pcg	1.6
39	root	1.24	if (map)
40	pcg	1.12	{
41	ayin	1.60	state = STATE_IDLE;
42	root	1.24
43	ayin	1.60	if (!win)
44			resize ();
45	root	1.24
46	ayin	1.60	if (win)
47	pcg	1.12	{
48	ayin	1.60	XMapWindow (term->dpy, win);
49	pcg	1.12	change = 1;
50			}
51			}
52	root	1.24	else
53	pcg	1.12	{
54	ayin	1.60	state = 0;
55			XUnmapWindow (term->dpy, win);
56	pcg	1.12	change = 1;
57	pcg	1.1	}
58	root	1.35
59	pcg	1.12	return change;
60	pcg	1.1	}
61
62			void
63	ayin	1.60	scrollBar_t::resize ()
64	pcg	1.1	{
65	pcg	1.12	int delayed_init = 0;
66	ayin	1.55	int window_sb_x = 0;
67
68	ayin	1.60	if (term->option (Opt_scrollBar_right))
69			window_sb_x = term->szHint.width - total_width ();
70	pcg	1.1
71	ayin	1.60	update_data ();
72	pcg	1.1
73	ayin	1.60	if (!win)
74	pcg	1.12	{
75			/* create the scrollbar window */
76	ayin	1.60	win = XCreateSimpleWindow (term->dpy,
77	sf-exg	1.66	term->parent,
78	ayin	1.60	window_sb_x, 0,
79			total_width (),
80			term->szHint.height,
81			0,
82			term->pix_colors[Color_fg],
83			term->pix_colors[Color_border]);
84			XDefineCursor (term->dpy, win, leftptr_cursor);
85	pcg	1.13
86	ayin	1.60	XSelectInput (term->dpy, win,
87	pcg	1.13	ExposureMask \| ButtonPressMask \| ButtonReleaseMask
88			\| Button1MotionMask \| Button2MotionMask
89			\| Button3MotionMask);
90	ayin	1.60	term->scrollbar_ev.start (term->display, win);
91	pcg	1.13
92	pcg	1.12	delayed_init = 1;
93			}
94	ayin	1.55	else
95	ayin	1.60	XMoveResizeWindow (term->dpy, win,
96	ayin	1.55	window_sb_x, 0,
97	ayin	1.60	total_width (), term->szHint.height);
98	pcg	1.13
99	ayin	1.60	show (1);
100	pcg	1.13
101	pcg	1.12	if (delayed_init)
102	ayin	1.60	XMapWindow (term->dpy, win);
103	pcg	1.1	}
104
105			/*
106			* Update current scrollbar view w.r.t. slider heights, etc.
107			*/
108			int
109	ayin	1.60	scrollBar_t::show (int refresh)
110	pcg	1.1	{
111	ayin	1.59	int ret;
112	pcg	1.1
113	ayin	1.60	if (!state)
114	pcg	1.12	return 0;
115	pcg	1.1
116	ayin	1.58	if (refresh)
117	pcg	1.12	{
118	ayin	1.60	int sb_top = term->view_start - term->top_row;
119			int sb_bot = sb_top + (term->nrow - 1);
120			int sb_len = max (term->nrow - 1 - term->top_row, 1);
121			int sb_size = (sb_bot - sb_top) * size ();
122
123			top = beg + (sb_top * size ()) / sb_len;
124	ayin	1.62	bot = top + sb_size / sb_len + min_height () + (sb_size % sb_len > 0);
125	pcg	1.12	/* no change */
126	ayin	1.60	if (top == last_top
127			&& bot == last_bot
128			&& (state == last_state
129			\|\| !(state == STATE_UP \|\| state == STATE_DOWN)))
130	pcg	1.12	return 0;
131	pcg	1.1	}
132
133	ayin	1.61	ret = (this->*update) (refresh);
134	pcg	1.1
135	ayin	1.60	last_top = top;
136			last_bot = bot;
137			last_state = state;
138	pcg	1.1
139	pcg	1.12	return ret;
140	pcg	1.1	}
141
142			void
143	ayin	1.50	scrollBar_t::setup (rxvt_term *term)
144	pcg	1.1	{
145	pcg	1.12	int i;
146			short style, width;
147	ayin	1.50	const char scrollalign, scrollstyle, *thickness;
148
149			this->term = term;
150			scrollalign = term->rs[Rs_scrollBar_align];
151			scrollstyle = term->rs[Rs_scrollstyle];
152			thickness = term->rs[Rs_scrollBar_thickness];
153	pcg	1.1
154	pcg	1.10	# if defined(RXVT_SCROLLBAR)
155	pcg	1.12	style = R_SB_RXVT;
156	pcg	1.10	# elif defined(XTERM_SCROLLBAR)
157	pcg	1.12	style = R_SB_XTERM;
158	pcg	1.10	# elif defined(NEXT_SCROLLBAR)
159	pcg	1.12	style = R_SB_NEXT;
160	pcg	1.10	# elif defined(PLAIN_SCROLLBAR)
161	pcg	1.12	style = R_SB_PLAIN;
162	pcg	1.10	#else
163	pcg	1.12	style = R_SB_RXVT;
164	pcg	1.1	# endif
165
166	pcg	1.10	# if (defined(NEXT_SCROLLBAR) \|\| defined(XTERM_SCROLLBAR) \|\| defined(PLAIN_SCROLLBAR))
167	pcg	1.12	if (scrollstyle)
168			{
169	pcg	1.1	# ifdef NEXT_SCROLLBAR
170	root	1.19	if (strncasecmp (scrollstyle, "next", 4) == 0)
171	pcg	1.12	style = R_SB_NEXT;
172	pcg	1.1	# endif
173			# ifdef XTERM_SCROLLBAR
174	root	1.19	if (strncasecmp (scrollstyle, "xterm", 5) == 0)
175	pcg	1.12	style = R_SB_XTERM;
176	pcg	1.1	# endif
177	pcg	1.10	# ifdef PLAIN_SCROLLBAR
178	root	1.19	if (strncasecmp (scrollstyle, "plain", 5) == 0)
179	pcg	1.12	style = R_SB_PLAIN;
180	pcg	1.10	# endif
181	pcg	1.12
182	pcg	1.1	}
183			# endif
184	pcg	1.12	if (style == R_SB_NEXT)
185			width = SB_WIDTH_NEXT;
186			else if (style == R_SB_XTERM)
187			width = SB_WIDTH_XTERM;
188			else if (style == R_SB_PLAIN)
189			width = SB_WIDTH_PLAIN;
190			else /* if (style == R_SB_RXVT) */
191			width = SB_WIDTH_RXVT;
192	pcg	1.1
193	pcg	1.12	if (style != R_SB_NEXT) /* dishonour request - for now */
194	pcg	1.14	if (thickness && (i = atoi (thickness)) >= SB_WIDTH_MINIMUM)
195			width = min (i, SB_WIDTH_MAXIMUM);
196	pcg	1.1
197	sf-exg	1.65	# ifdef RXVT_SCROLLBAR
198			if (! term->option (Opt_scrollBar_floating) && style == R_SB_RXVT)
199			shadow = SHADOW_WIDTH;
200			# endif
201
202	ayin	1.50	this->style = style;
203			this->width = width;
204	pcg	1.1
205	ayin	1.51	/* align = R_SB_ALIGN_CENTRE; */
206	pcg	1.12	if (scrollalign)
207			{
208	root	1.19	if (strncasecmp (scrollalign, "top", 3) == 0)
209	ayin	1.50	align = R_SB_ALIGN_TOP;
210	root	1.19	else if (strncasecmp (scrollalign, "bottom", 6) == 0)
211	ayin	1.50	align = R_SB_ALIGN_BOTTOM;
212	pcg	1.1	}
213	ayin	1.50	last_bot = last_state = -1;
214	ayin	1.47	/* cursor scrollBar: Black-on-White */
215	ayin	1.50	leftptr_cursor = XCreateFontCursor (term->dpy, XC_left_ptr);
216	pcg	1.1	}
217
218	ayin	1.57	void
219	ayin	1.61	scrollBar_t::destroy ()
220			{
221			#ifdef XTERM_SCROLLBAR
222			if (xscrollbarGC) XFreeGC (term->dpy, xscrollbarGC);
223			if (ShadowGC) XFreeGC (term->dpy, ShadowGC);
224			#endif
225			#ifdef PLAIN_SCROLLBAR
226			if (pscrollbarGC) XFreeGC (term->dpy, pscrollbarGC);
227			#endif
228			#ifdef NEXT_SCROLLBAR
229			if (blackGC) XFreeGC (term->dpy, blackGC);
230			if (whiteGC) XFreeGC (term->dpy, whiteGC);
231			if (grayGC) XFreeGC (term->dpy, grayGC);
232			if (darkGC) XFreeGC (term->dpy, darkGC);
233			if (stippleGC) XFreeGC (term->dpy, stippleGC);
234			if (dimple) XFreePixmap (term->dpy, dimple);
235			if (upArrow) XFreePixmap (term->dpy, upArrow);
236			if (downArrow) XFreePixmap (term->dpy, downArrow);
237			if (upArrowHi) XFreePixmap (term->dpy, upArrowHi);
238			if (downArrowHi) XFreePixmap (term->dpy, downArrowHi);
239			#endif
240			#ifdef RXVT_SCROLLBAR
241			if (topShadowGC) XFreeGC (term->dpy, topShadowGC);
242			if (botShadowGC) XFreeGC (term->dpy, botShadowGC);
243			if (scrollbarGC) XFreeGC (term->dpy, scrollbarGC);
244			#endif
245			}
246
247			void
248	ayin	1.57	scrollBar_t::update_data ()
249			{
250			#if defined(PLAIN_SCROLLBAR)
251			if (style == R_SB_PLAIN)
252			{
253			beg = 0;
254			end = term->szHint.height;
255	ayin	1.61	update = &scrollBar_t::show_plain;
256	ayin	1.57	}
257			#endif
258			#if defined(XTERM_SCROLLBAR)
259			if (style == R_SB_XTERM)
260			{
261			beg = 0;
262			end = term->szHint.height;
263	ayin	1.61	update = &scrollBar_t::show_xterm;
264	ayin	1.57	}
265			#endif
266			#if defined(NEXT_SCROLLBAR)
267			if (style == R_SB_NEXT)
268			{
269			beg = 0;
270			end = term->szHint.height - (SB_BUTTON_TOTAL_HEIGHT + SB_PADDING);
271	ayin	1.61	update = &scrollBar_t::show_next;
272	ayin	1.57	}
273			#endif
274			#if defined(RXVT_SCROLLBAR)
275			if (style == R_SB_RXVT)
276			{
277			beg = (width + 1) + shadow;
278			end = term->szHint.height - beg - (2 * shadow);
279	ayin	1.61	update = &scrollBar_t::show_rxvt;
280	ayin	1.57	}
281			#endif
282			}
283
284	pcg	1.1	/----------------------- end-of-file (C source) -----------------------/
285	pcg	1.10