rxvt-unicode/src/scrollbar-rxvt.C

/*----------------------------------------------------------------------*
 * File:        scrollbar-rxvt.C
 *----------------------------------------------------------------------*
 *
 * Copyright (c) 1997,1998 mj olesen <olesen@me.QueensU.CA>
 * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com>
 * Copyright (c) 2004-2006 Marc Lehmann <pcg@goof.com>
 *
 * 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 */

/*----------------------------------------------------------------------*/
#if defined(RXVT_SCROLLBAR)

static void
draw_shadow (scrollBar_t *sb, int x, int y, int w, int h)
{
  int shadow;
  Drawable d = sb->win;
  Display *dpy = sb->term->dpy;

  shadow = (w == 0 || h == 0) ? 1 : SHADOW_WIDTH;
  w += x - 1;
  h += y - 1;

  for (; shadow-- > 0; x++, y++, w--, h--)
    {
      XDrawLine (dpy, d, sb->topShadowGC, x, y, w    , y    );
      XDrawLine (dpy, d, sb->topShadowGC, x, y, x    , h    );
      XDrawLine (dpy, d, sb->botShadowGC, w, h, w    , y + 1);
      XDrawLine (dpy, d, sb->botShadowGC, w, h, x + 1, h    );
    }
}

/* draw triangular button with a shadow of 2 pixels */
static void
draw_button (scrollBar_t *sb, int x, int y, int dirn)
{
  unsigned int sz, sz2;
  XPoint pt[3];
  GC top, bot;
  Drawable d = sb->win;
  Display *dpy = sb->term->dpy;

  sz = sb->width;
  sz2 = sz / 2;

  if ((dirn == UP && sb->state == STATE_UP)
      || (dirn == DN && sb->state == STATE_DOWN))
    {
      top = sb->botShadowGC;
      bot = sb->topShadowGC;
    }
  else
    {
      top = sb->topShadowGC;
      bot = sb->botShadowGC;
    }

  /* fill triangle */
  pt[0].x = x;
  pt[1].x = x + sz - 1;
  pt[2].x = x + sz2;

  if (dirn == UP)
    {
      pt[0].y = pt[1].y = y + sz - 1;
      pt[2].y = y;
    }
  else
    {
      pt[0].y = pt[1].y = y;
      pt[2].y = y + sz - 1;
    }

  XFillPolygon (dpy, d, sb->scrollbarGC,
                pt, 3, Convex, CoordModeOrigin);

  /* draw base */
  XDrawLine (dpy, d, (dirn == UP ? bot : top),
             pt[0].x, pt[0].y, pt[1].x, pt[1].y);

  /* draw shadow on left */
  pt[1].x = x + sz2 - 1;
  pt[1].y = y + (dirn == UP ? 0 : sz - 1);
  XDrawLine (dpy, d, top,
             pt[0].x, pt[0].y, pt[1].x, pt[1].y);

#if SHADOW_WIDTH > 1
  /* doubled */
  pt[0].x++;

  if (dirn == UP)
    {
      pt[0].y--;
      pt[1].y++;
    }
  else
    {
      pt[0].y++;
      pt[1].y--;
    }

  XDrawLine (dpy, d, top,
             pt[0].x, pt[0].y, pt[1].x, pt[1].y);
#endif

  /* draw shadow on right */
  pt[1].x = x + sz - 1;
  /*  pt[2].x = x + sz2; */
  pt[1].y = y + (dirn == UP ? sz - 1 : 0);
  pt[2].y = y + (dirn == UP ? 0 : sz - 1);
  XDrawLine (dpy, d, bot,
             pt[2].x, pt[2].y, pt[1].x, pt[1].y);

#if SHADOW_WIDTH > 1
  /* doubled */
  pt[1].x--;
  if (dirn == UP)
    {
      pt[2].y++;
      pt[1].y--;
    }
  else
    {
      pt[2].y--;
      pt[1].y++;
    }

  XDrawLine (dpy, d, bot,
             pt[2].x, pt[2].y, pt[1].x, pt[1].y);
#endif
}

int
scrollBar_t::show_rxvt (int update)
{
  int sbwidth = (int)width;

  if ((init & R_SB_RXVT) == 0)
    {
      XGCValues gcvalue;

      init |= R_SB_RXVT;

      gcvalue.foreground = term->pix_colors[Color_topShadow];
      topShadowGC = XCreateGC (term->dpy, term->vt, GCForeground, &gcvalue);
      gcvalue.foreground = term->pix_colors[Color_bottomShadow];
      botShadowGC = XCreateGC (term->dpy, term->vt, GCForeground, &gcvalue);
      gcvalue.foreground = term->pix_colors[ (term->depth <= 2 ? Color_fg : Color_scroll)];
      scrollbarGC = XCreateGC (term->dpy, term->vt, GCForeground, &gcvalue);
      if (!term->option (Opt_scrollBar_floating))
        {
          shadow = SHADOW_WIDTH;
          XSetWindowBackground (term->dpy, win, term->pix_colors_focused[Color_trough]);
          XClearWindow (term->dpy, win);
        }
    }
  else
    {
      if (update)
        {
          if (last_top < top)
            XClearArea (term->dpy, win,
                        shadow, last_top,
                        sbwidth, (top - last_top),
                        False);

          if (bot < last_bot)
            XClearArea (term->dpy, win,
                        shadow, bot,
                        sbwidth, (last_bot - bot),
                        False);
        }
      else
        XClearWindow (term->dpy, win);
    }

  /* scrollbar slider */
#ifdef SB_BORDER
  {
    int xofs;

    if (term->option (Opt_scrollBar_right))
      xofs = 0;
    else
      xofs = shadow ? sbwidth : sbwidth - 1;

    XDrawLine (term->dpy, win, botShadowGC,
               xofs, 0, xofs, end + sbwidth);
  }
#endif

  XFillRectangle (term->dpy, win, scrollbarGC,
                  shadow, top, sbwidth,
                  bot - top);

  if (shadow)
    /* trough shadow */
    draw_shadow (this, 0, 0, sbwidth + 2 * shadow, end + (sbwidth + 1) + shadow);

  /* shadow for scrollbar slider */
  draw_shadow (this, shadow, top, sbwidth, bot - top);

  /* Redraw scrollbar arrows */
  draw_button (this, shadow, shadow, UP);
  draw_button (this, shadow, end + 1,  DN);

  return 1;
}
#endif /* RXVT_SCROLLBAR */
/*----------------------- end-of-file (C source) -----------------------*/

Revision:	1.40
Committed:	Tue Mar 30 10:31:07 2010 UTC (14 years, 1 month ago) by sf-exg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	before_dynamic_fontidx, rel-9_10, dynamic_fontidx, rel-9_09
Changes since 1.39:	+2 -1 lines
Log Message:	Move 'shadow' initialization to 'show_rxvt'.
#	User	Rev	Content
1	root	1.29	/----------------------------------------------------------------------
2	pcg	1.9	* File: scrollbar-rxvt.C
3	pcg	1.1	----------------------------------------------------------------------
4			*
5			* Copyright (c) 1997,1998 mj olesen <olesen@me.QueensU.CA>
6			* Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com>
7	root	1.28	* Copyright (c) 2004-2006 Marc Lehmann <pcg@goof.com>
8	pcg	1.1	*
9			* This program is free software; you can redistribute it and/or modify
10			* it under the terms of the GNU General Public License as published by
11			* the Free Software Foundation; either version 2 of the License, or
12			* (at your option) any later version.
13			*
14			* This program is distributed in the hope that it will be useful,
15			* but WITHOUT ANY WARRANTY; without even the implied warranty of
16			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17			* GNU General Public License for more details.
18			*
19			* You should have received a copy of the GNU General Public License
20			* along with this program; if not, write to the Free Software
21			* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22			----------------------------------------------------------------------/
23
24			#include "../config.h" /* NECESSARY */
25			#include "rxvt.h" /* NECESSARY */
26
27			/----------------------------------------------------------------------/
28			#if defined(RXVT_SCROLLBAR)
29
30	root	1.24	static void
31	ayin	1.37	draw_shadow (scrollBar_t *sb, int x, int y, int w, int h)
32	root	1.24	{
33	root	1.23	int shadow;
34	ayin	1.37	Drawable d = sb->win;
35			Display *dpy = sb->term->dpy;
36	root	1.24
37	root	1.22	shadow = (w == 0 \|\| h == 0) ? 1 : SHADOW_WIDTH;
38			w += x - 1;
39			h += y - 1;
40	root	1.24
41	root	1.22	for (; shadow-- > 0; x++, y++, w--, h--)
42	root	1.24	{
43	ayin	1.37	XDrawLine (dpy, d, sb->topShadowGC, x, y, w , y );
44			XDrawLine (dpy, d, sb->topShadowGC, x, y, x , h );
45			XDrawLine (dpy, d, sb->botShadowGC, w, h, w , y + 1);
46			XDrawLine (dpy, d, sb->botShadowGC, w, h, x + 1, h );
47	root	1.24	}
48			}
49	root	1.21
50			/* draw triangular button with a shadow of 2 pixels */
51	root	1.23	static void
52	ayin	1.37	draw_button (scrollBar_t *sb, int x, int y, int dirn)
53	pcg	1.1	{
54	root	1.23	unsigned int sz, sz2;
55			XPoint pt[3];
56			GC top, bot;
57	ayin	1.37	Drawable d = sb->win;
58			Display *dpy = sb->term->dpy;
59	pcg	1.6
60	ayin	1.37	sz = sb->width;
61	pcg	1.6	sz2 = sz / 2;
62	root	1.26
63	ayin	1.37	if ((dirn == UP && sb->state == STATE_UP)
64			\|\| (dirn == DN && sb->state == STATE_DOWN))
65	pcg	1.6	{
66	ayin	1.37	top = sb->botShadowGC;
67			bot = sb->topShadowGC;
68	ayin	1.36	}
69			else
70			{
71	ayin	1.37	top = sb->topShadowGC;
72			bot = sb->botShadowGC;
73	pcg	1.6	}
74
75			/* fill triangle */
76			pt[0].x = x;
77			pt[1].x = x + sz - 1;
78			pt[2].x = x + sz2;
79	root	1.26
80	pcg	1.6	if (dirn == UP)
81			{
82			pt[0].y = pt[1].y = y + sz - 1;
83			pt[2].y = y;
84			}
85			else
86			{
87			pt[0].y = pt[1].y = y;
88			pt[2].y = y + sz - 1;
89			}
90	root	1.10
91	ayin	1.37	XFillPolygon (dpy, d, sb->scrollbarGC,
92	root	1.10	pt, 3, Convex, CoordModeOrigin);
93	pcg	1.6
94			/* draw base */
95	ayin	1.37	XDrawLine (dpy, d, (dirn == UP ? bot : top),
96	root	1.10	pt[0].x, pt[0].y, pt[1].x, pt[1].y);
97	pcg	1.6
98			/* draw shadow on left */
99			pt[1].x = x + sz2 - 1;
100			pt[1].y = y + (dirn == UP ? 0 : sz - 1);
101	ayin	1.37	XDrawLine (dpy, d, top,
102	root	1.10	pt[0].x, pt[0].y, pt[1].x, pt[1].y);
103	pcg	1.1
104	root	1.22	#if SHADOW_WIDTH > 1
105	pcg	1.6	/* doubled */
106			pt[0].x++;
107	root	1.17
108	pcg	1.6	if (dirn == UP)
109			{
110			pt[0].y--;
111			pt[1].y++;
112	pcg	1.1	}
113	pcg	1.6	else
114			{
115			pt[0].y++;
116			pt[1].y--;
117			}
118	root	1.17
119	ayin	1.37	XDrawLine (dpy, d, top,
120	root	1.10	pt[0].x, pt[0].y, pt[1].x, pt[1].y);
121	pcg	1.1	#endif
122	root	1.21
123	pcg	1.6	/* draw shadow on right */
124			pt[1].x = x + sz - 1;
125			/* pt[2].x = x + sz2; */
126			pt[1].y = y + (dirn == UP ? sz - 1 : 0);
127			pt[2].y = y + (dirn == UP ? 0 : sz - 1);
128	ayin	1.37	XDrawLine (dpy, d, bot,
129	root	1.10	pt[2].x, pt[2].y, pt[1].x, pt[1].y);
130	root	1.17
131	root	1.22	#if SHADOW_WIDTH > 1
132	pcg	1.6	/* doubled */
133			pt[1].x--;
134			if (dirn == UP)
135			{
136			pt[2].y++;
137			pt[1].y--;
138	pcg	1.1	}
139	pcg	1.6	else
140			{
141			pt[2].y--;
142			pt[1].y++;
143			}
144	root	1.10
145	ayin	1.37	XDrawLine (dpy, d, bot,
146	root	1.10	pt[2].x, pt[2].y, pt[1].x, pt[1].y);
147	pcg	1.1	#endif
148			}
149
150			int
151	ayin	1.37	scrollBar_t::show_rxvt (int update)
152	pcg	1.1	{
153	ayin	1.37	int sbwidth = (int)width;
154	pcg	1.1
155	ayin	1.37	if ((init & R_SB_RXVT) == 0)
156	pcg	1.6	{
157	ayin	1.34	XGCValues gcvalue;
158
159	ayin	1.37	init \|= R_SB_RXVT;
160	root	1.18
161	ayin	1.37	gcvalue.foreground = term->pix_colors[Color_topShadow];
162			topShadowGC = XCreateGC (term->dpy, term->vt, GCForeground, &gcvalue);
163			gcvalue.foreground = term->pix_colors[Color_bottomShadow];
164			botShadowGC = XCreateGC (term->dpy, term->vt, GCForeground, &gcvalue);
165			gcvalue.foreground = term->pix_colors[ (term->depth <= 2 ? Color_fg : Color_scroll)];
166			scrollbarGC = XCreateGC (term->dpy, term->vt, GCForeground, &gcvalue);
167	sf-exg	1.40	if (!term->option (Opt_scrollBar_floating))
168	pcg	1.6	{
169	sf-exg	1.40	shadow = SHADOW_WIDTH;
170	ayin	1.37	XSetWindowBackground (term->dpy, win, term->pix_colors_focused[Color_trough]);
171			XClearWindow (term->dpy, win);
172	pcg	1.6	}
173			}
174			else
175			{
176	root	1.16	if (update)
177			{
178	ayin	1.37	if (last_top < top)
179			XClearArea (term->dpy, win,
180	sf-exg	1.39	shadow, last_top,
181	ayin	1.37	sbwidth, (top - last_top),
182	root	1.16	False);
183
184	ayin	1.37	if (bot < last_bot)
185			XClearArea (term->dpy, win,
186	sf-exg	1.39	shadow, bot,
187	ayin	1.37	sbwidth, (last_bot - bot),
188	root	1.16	False);
189			}
190			else
191	ayin	1.37	XClearWindow (term->dpy, win);
192	pcg	1.1	}
193
194	pcg	1.6	/* scrollbar slider */
195	pcg	1.1	#ifdef SB_BORDER
196	pcg	1.6	{
197	root	1.10	int xofs;
198	pcg	1.1
199	ayin	1.37	if (term->option (Opt_scrollBar_right))
200	pcg	1.6	xofs = 0;
201			else
202	sf-exg	1.39	xofs = shadow ? sbwidth : sbwidth - 1;
203	pcg	1.6
204	ayin	1.37	XDrawLine (term->dpy, win, botShadowGC,
205			xofs, 0, xofs, end + sbwidth);
206	pcg	1.6	}
207			#endif
208	root	1.10
209	ayin	1.37	XFillRectangle (term->dpy, win, scrollbarGC,
210	sf-exg	1.39	shadow, top, sbwidth,
211	ayin	1.38	bot - top);
212	pcg	1.1
213	sf-exg	1.39	if (shadow)
214	pcg	1.6	/* trough shadow */
215	sf-exg	1.39	draw_shadow (this, 0, 0, sbwidth + 2 * shadow, end + (sbwidth + 1) + shadow);
216	root	1.10
217	pcg	1.6	/* shadow for scrollbar slider */
218	sf-exg	1.39	draw_shadow (this, shadow, top, sbwidth, bot - top);
219	pcg	1.6
220	root	1.10	/* Redraw scrollbar arrows */
221	sf-exg	1.39	draw_button (this, shadow, shadow, UP);
222			draw_button (this, shadow, end + 1, DN);
223	root	1.10
224	pcg	1.6	return 1;
225	pcg	1.1	}
226	ayin	1.31	#endif /* RXVT_SCROLLBAR */
227	pcg	1.1	/----------------------- end-of-file (C source) -----------------------/
228	root	1.18