rxvt-unicode/src/background.C

/*----------------------------------------------------------------------*
 * File:        background.C - former xpm.C
 *----------------------------------------------------------------------*
 *
 * All portions of code are copyright by their respective author/s.
 * Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>
 * Copyright (c) 2007      Sasha Vasko <sasha@aftercode.net>
 * Copyright (c) 2010-2012 Emanuele Giaquinta <e.giaquinta@glauco.it>
 *
 * 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 */

#ifdef HAVE_BG_PIXMAP

void
rxvt_term::bg_destroy ()
{
# if ENABLE_TRANSPARENCY
  delete root_img;
  root_img = 0;
# endif

# if BG_IMAGE_FROM_FILE
  fimage.destroy ();
# endif

  delete bg_img;
  bg_img = 0;
}

bool
rxvt_term::bg_set_position (int x, int y)
{

  if (target_x != x
      || target_y != y)
    {
      target_x = x;
      target_y = y;
      return true;
    }
  return false;
}

bool
rxvt_term::bg_window_size_sensitive ()
{
# if ENABLE_TRANSPARENCY
  if (bg_flags & BG_IS_TRANSPARENT)
    return true;
# endif

# if BG_IMAGE_FROM_FILE
  if (fimage.img)
    {
      if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
          || fimage.img->w > szHint.width
          || fimage.img->h > szHint.height)
        return true;
    }
# endif

  return false;
}

bool
rxvt_term::bg_window_position_sensitive ()
{
# if ENABLE_TRANSPARENCY
  if (bg_flags & BG_IS_TRANSPARENT)
    return true;
# endif

# if BG_IMAGE_FROM_FILE
  if (fimage.img)
    {
      if (fimage.flags & IM_ROOT_ALIGN)
        return true;
    }
# endif

  return false;
}

# if BG_IMAGE_FROM_FILE
static inline int
make_align_position (int align, int window_size, int image_size)
{
  if (align >= 0 && align <= 100)
    return lerp (0, window_size - image_size, align);
  else if (align > 100)
    return lerp (window_size - image_size, window_size, align - 100);
  else
    return lerp (-image_size, 0, align + 100);
}

static inline int
make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)
{
  int src_pos = 0;
  dst_pos = pos;
  dst_size = size;
  if (pos < 0)
    {
      src_pos = -pos;
      dst_pos = 0;
      dst_size += pos;
    }

  min_it (dst_size, target_size - dst_pos);
  return src_pos;
}

static void
parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
{
  if (!strcasecmp (style, "tiled"))
    {
      flags = IM_TILE;
      w = h = noScale;
      x = y = 0;
    }
  else if (!strcasecmp (style, "aspect-stretched"))
    {
      flags = IM_KEEP_ASPECT;
      w = h = windowScale;
      x = y = centerAlign;
    }
  else if (!strcasecmp (style, "stretched"))
    {
      flags = 0;
      w = h = windowScale;
      x = y = centerAlign;
    }
  else if (!strcasecmp (style, "centered"))
    {
      flags = 0;
      w = h = noScale;
      x = y = centerAlign;
    }
  else if (!strcasecmp (style, "root-tiled"))
    {
      flags = IM_TILE|IM_ROOT_ALIGN;
      w = h = noScale;
      x = y = 0;
    }
}

bool
rxvt_image::set_geometry (const char *geom, bool update)
{
  bool changed = false;
  int geom_flags = 0;
  int x = h_align;
  int y = v_align;
  unsigned int w = h_scale;
  unsigned int h = v_scale;
  uint8_t new_flags = 0;

  if (geom == NULL)
    return false;

  if (geom[0])
    {
      char **arr = rxvt_strsplit (':', geom);

      for (int i = 0; arr[i]; i++)
        {
          if (!strncasecmp (arr[i], "style=", 6))
            {
              parse_style (arr[i] + 6, x, y, w, h, new_flags);
              geom_flags = WidthValue|HeightValue|XValue|YValue;
            }
          else if (!strcasecmp (arr[i], "op=tile"))
            new_flags |= IM_TILE;
          else if (!strcasecmp (arr[i], "op=keep-aspect"))
            new_flags |= IM_KEEP_ASPECT;
          else if (!strcasecmp (arr[i], "op=root-align"))
            new_flags |= IM_ROOT_ALIGN;

          // deprecated
          else if (!strcasecmp (arr[i], "tile"))
            {
              new_flags |= IM_TILE;
              w = h = noScale;
              geom_flags |= WidthValue|HeightValue;
            }
          else if (!strcasecmp (arr[i], "propscale"))
            {
              new_flags |= IM_KEEP_ASPECT;
              w = h = windowScale;
              geom_flags |= WidthValue|HeightValue;
            }
          else if (!strcasecmp (arr[i], "hscale"))
            {
              new_flags |= IM_TILE;
              w = windowScale;
              h = noScale;
              geom_flags |= WidthValue|HeightValue;
            }
          else if (!strcasecmp (arr[i], "vscale"))
            {
              new_flags |= IM_TILE;
              h = windowScale;
              w = noScale;
              geom_flags |= WidthValue|HeightValue;
            }
          else if (!strcasecmp (arr[i], "scale"))
            {
              w = h = windowScale;
              geom_flags |= WidthValue|HeightValue;
            }
          else if (!strcasecmp (arr[i], "auto"))
            {
              w = h = windowScale;
              x = y = centerAlign;
              geom_flags |= WidthValue|HeightValue|XValue|YValue;
            }
          else if (!strcasecmp (arr[i], "root"))
            {
              new_flags |= IM_TILE|IM_ROOT_ALIGN;
              w = h = noScale;
              geom_flags |= WidthValue|HeightValue;
            }

          else
            geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
        } /* done parsing ops */

      rxvt_free_strsplit (arr);
    }

  new_flags |= flags & ~IM_GEOMETRY_FLAGS;

  if (!update)
    {
      if (!(geom_flags & XValue))
        x = y = defaultAlign;
      else if (!(geom_flags & YValue))
        y = x;

      if (!(geom_flags & (WidthValue|HeightValue)))
        w = h = defaultScale;
      else if (!(geom_flags & HeightValue))
        h = w;
      else if (!(geom_flags & WidthValue))
        w = h;
    }

  clamp_it (x, -100, 200);
  clamp_it (y, -100, 200);

  if (flags != new_flags
      || h_scale != w
      || v_scale != h
      || h_align != x
      || v_align != y)
    {
      flags = new_flags;
      h_scale = w;
      v_scale = h;
      h_align = x;
      v_align = y;
      changed = true;
    }

  if (is_size_sensitive ())
    flags |= IM_IS_SIZE_SENSITIVE;
  else
    flags &= ~IM_IS_SIZE_SENSITIVE;

  return changed;
}

void
rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
{
  int image_width = image.img->w;
  int image_height = image.img->h;
  int target_width = szHint.width;
  int target_height = szHint.height;
  int h_scale = min (image.h_scale, 32767 * 100 / target_width);
  int v_scale = min (image.v_scale, 32767 * 100 / target_height);

  w = h_scale * target_width / 100;
  h = v_scale * target_height / 100;

  if (image.flags & IM_KEEP_ASPECT)
    {
      float scale = (float)w / image_width;
      min_it (scale, (float)h / image_height);
      w = image_width * scale + 0.5;
      h = image_height * scale + 0.5;
    }

  if (!w) w = image_width;
  if (!h) h = image_height;

  if (image.flags & IM_ROOT_ALIGN)
    {
      x = -target_x;
      y = -target_y;
    }
  else
    {
      x = make_align_position (image.h_align, target_width, w);
      y = make_align_position (image.v_align, target_height, h);
    }
}

bool
rxvt_term::render_image (rxvt_image &image)
{
  int target_width    = szHint.width;
  int target_height   = szHint.height;

  int x = 0;
  int y = 0;
  int w = 0;
  int h = 0;

  get_image_geometry (image, w, h, x, y);

  if (!(image.flags & IM_ROOT_ALIGN)
      && (x >= target_width
          || y >= target_height
          || x + w <= 0
          || y + h <= 0))
    return false;

  rxvt_img *img = image.img->scale (w, h);

  if (image.flags & IM_TILE)
    img->repeat_mode (RepeatNormal);
  else
    img->repeat_mode (RepeatNone);
  img->sub_rect (-x, -y, target_width, target_height)->replace (img);

  if (bg_flags & BG_IS_VALID)
    {
      double factor = image.alpha * 1. / 0xffff;
      bg_img->blend (img, factor)->replace (img);
    }

  XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
  img->convert_format (format, pix_colors [Color_bg])->replace (img);

  delete bg_img;
  bg_img = img;

  return true;
}

rxvt_image::rxvt_image ()
{
  alpha = 0xffff;
  flags = 0;
  h_scale =
  v_scale = defaultScale;
  h_align =
  v_align = defaultAlign;

  img = 0;
}

bool
rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
{
  if (!file || !*file)
    return false;

  const char *p = strchr (file, ';');

  if (p)
    {
      size_t len = p - file;
      char *f = rxvt_temp_buf<char> (len + 1);
      memcpy (f, file, len);
      f[len] = '\0';
      file = f;
    }

  bool ret = set_file (s, file);
  alpha = 0x8000;
  if (ret)
    set_geometry (p ? p + 1 : "");
  return ret;
}

bool
rxvt_image::set_file (rxvt_screen *s, const char *file)
{
  delete img;
  img = rxvt_img::new_from_file (s, file);
  return img != 0;
}

# endif /* BG_IMAGE_FROM_FILE */

bool
image_effects::set_blur (const char *geom)
{
  bool changed = false;
  unsigned int hr, vr;
  int junk;
  int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);

  if (!(geom_flags & WidthValue))
    hr = 1;
  if (!(geom_flags & HeightValue))
    vr = hr;

  min_it (hr, 128);
  min_it (vr, 128);

  if (h_blurRadius != hr)
    {
      changed = true;
      h_blurRadius = hr;
    }

  if (v_blurRadius != vr)
    {
      changed = true;
      v_blurRadius = vr;
    }

  return changed;
}

bool
image_effects::set_tint (const rxvt_color &new_tint)
{
  if (!tint_set || tint != new_tint)
    {
      tint = new_tint;
      tint_set = true;

      return true;
    }

  return false;
}

bool
image_effects::set_shade (const char *shade_str)
{
  int new_shade = atoi (shade_str);

  clamp_it (new_shade, -100, 200);
  if (new_shade < 0)
    new_shade = 200 - (100 + new_shade);

  if (new_shade != shade)
    {
      shade = new_shade;
      return true;
    }

  return false;
}

# if ENABLE_TRANSPARENCY
/*
 * Builds a pixmap of the same size as the terminal window that contains
 * the tiled portion of the root pixmap that is supposed to be covered by
 * our window.
 */
bool
rxvt_term::render_root_image ()
{
  /* root dimensions may change from call to call - but Display structure should
   * be always up-to-date, so let's use it :
   */
  int screen = display->screen;
  int root_width = DisplayWidth (dpy, screen);
  int root_height = DisplayHeight (dpy, screen);
  int window_width = szHint.width;
  int window_height = szHint.height;
  int sx, sy;

  sx = target_x;
  sy = target_y;

  if (!root_img)
    return false;

  /* check if we are outside of the visible part of the virtual screen : */
  if (sx + window_width <= 0 || sy + window_height <= 0
      || sx >= root_width || sy >= root_height)
    return 0;

  while (sx < 0) sx += root_img->w;
  while (sy < 0) sy += root_img->h;

  rxvt_img *img = root_img->sub_rect (sx, sy, window_width, window_height);

  if (root_effects.need_blur ())
    img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);

  if (root_effects.need_tint ())
    tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);

  XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
  img->convert_format (format, pix_colors [Color_bg])->replace (img);

  delete bg_img;
  bg_img = img;

  return true;
}

void
rxvt_term::bg_set_root_pixmap ()
{
  delete root_img;
  root_img = rxvt_img::new_from_root (this);
}
# endif /* ENABLE_TRANSPARENCY */

void
rxvt_term::bg_render ()
{
  if (bg_flags & BG_INHIBIT_RENDER)
    return;

  bg_invalidate ();
# if ENABLE_TRANSPARENCY
  if (bg_flags & BG_IS_TRANSPARENT)
    {
      /*  we need to re-generate transparency pixmap in that case ! */
      if (render_root_image ())
        bg_flags |= BG_IS_VALID;
    }
# endif

# if BG_IMAGE_FROM_FILE
  if (fimage.img)
    {
      if (render_image (fimage))
        bg_flags |= BG_IS_VALID;
    }
# endif

  if (!(bg_flags & BG_IS_VALID))
    {
      delete bg_img;
      bg_img = 0;
    }

  scr_recolour (false);
  bg_flags |= BG_NEEDS_REFRESH;

  bg_valid_since = ev::now ();
}

void
rxvt_term::bg_init ()
{
#if BG_IMAGE_FROM_FILE
  if (rs[Rs_backgroundPixmap])
    {
      if (fimage.set_file_geometry (this, rs[Rs_backgroundPixmap])
          && !bg_window_position_sensitive ())
        update_background ();
    }
#endif
}

void
rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
{
  rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);

  if (tint_set)
    tint.get (c);

  if (shade > 100)
    {
      c.r = c.r * (200 - shade) / 100;
      c.g = c.g * (200 - shade) / 100;
      c.b = c.b * (200 - shade) / 100;
    }
  else
    {
      c.r = c.r * shade / 100;
      c.g = c.g * shade / 100;
      c.b = c.b * shade / 100;
    }

  img->contrast (c.r, c.g, c.b, c.a);

  if (shade > 100)
    {
      c.a = 0xffff;
      c.r =
      c.g =
      c.b = 0xffff * (shade - 100) / 100;
      img->brightness (c.r, c.g, c.b, c.a);
    }
}

#endif /* HAVE_BG_PIXMAP */
Revision:	1.237
Committed:	Sun Jun 10 15:01:14 2012 UTC (11 years, 11 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.236:	+2 -0 lines
Log Message:	must have been in a hurry
#	User	Rev	Content
1	sasha	1.1	/----------------------------------------------------------------------
2	ayin	1.4	* File: background.C - former xpm.C
3	sasha	1.1	----------------------------------------------------------------------
4			*
5			* All portions of code are copyright by their respective author/s.
6	root	1.147	* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>
7	sasha	1.1	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>
8	sf-exg	1.209	* Copyright (c) 2010-2012 Emanuele Giaquinta <e.giaquinta@glauco.it>
9	sasha	1.1	*
10			* This program is free software; you can redistribute it and/or modify
11			* it under the terms of the GNU General Public License as published by
12			* the Free Software Foundation; either version 2 of the License, or
13			* (at your option) any later version.
14			*
15			* This program is distributed in the hope that it will be useful,
16			* but WITHOUT ANY WARRANTY; without even the implied warranty of
17			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18			* GNU General Public License for more details.
19			*
20			* You should have received a copy of the GNU General Public License
21			* along with this program; if not, write to the Free Software
22			* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23			---------------------------------------------------------------------/
24
25			#include "../config.h" /* NECESSARY */
26			#include "rxvt.h" /* NECESSARY */
27
28			#ifdef HAVE_BG_PIXMAP
29	sf-exg	1.188
30	root	1.14	void
31	sf-exg	1.142	rxvt_term::bg_destroy ()
32	sasha	1.11	{
33	sf-exg	1.236	# if ENABLE_TRANSPARENCY
34			delete root_img;
35	root	1.237	root_img = 0;
36	sf-exg	1.236	# endif
37
38	root	1.232	# if BG_IMAGE_FROM_FILE
39	sf-exg	1.233	fimage.destroy ();
40	sf-exg	1.221	# endif
41
42	sf-exg	1.236	delete bg_img;
43	root	1.237	bg_img = 0;
44	sasha	1.11	}
45	sasha	1.2
46	sasha	1.1	bool
47	sf-exg	1.142	rxvt_term::bg_set_position (int x, int y)
48	sf-exg	1.121	{
49
50			if (target_x != x
51			\|\| target_y != y)
52			{
53			target_x = x;
54			target_y = y;
55			return true;
56			}
57			return false;
58			}
59
60			bool
61	sf-exg	1.142	rxvt_term::bg_window_size_sensitive ()
62	sasha	1.1	{
63	root	1.232	# if ENABLE_TRANSPARENCY
64	sf-exg	1.143	if (bg_flags & BG_IS_TRANSPARENT)
65	sasha	1.13	return true;
66			# endif
67
68	root	1.232	# if BG_IMAGE_FROM_FILE
69	sf-exg	1.236	if (fimage.img)
70	sasha	1.1	{
71	sf-exg	1.233	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
72	sf-exg	1.236	\|\| fimage.img->w > szHint.width
73			\|\| fimage.img->h > szHint.height)
74	sasha	1.1	return true;
75			}
76			# endif
77	sasha	1.13
78			return false;
79			}
80
81	sf-exg	1.37	bool
82	sf-exg	1.142	rxvt_term::bg_window_position_sensitive ()
83	sasha	1.13	{
84	root	1.232	# if ENABLE_TRANSPARENCY
85	sf-exg	1.143	if (bg_flags & BG_IS_TRANSPARENT)
86	sasha	1.1	return true;
87			# endif
88	sasha	1.13
89	root	1.232	# if BG_IMAGE_FROM_FILE
90	sf-exg	1.236	if (fimage.img)
91	sasha	1.13	{
92	sf-exg	1.233	if (fimage.flags & IM_ROOT_ALIGN)
93	sasha	1.13	return true;
94			}
95			# endif
96
97	sasha	1.1	return false;
98	sf-exg	1.117	}
99	sasha	1.1
100	root	1.232	# if BG_IMAGE_FROM_FILE
101	sasha	1.1	static inline int
102			make_align_position (int align, int window_size, int image_size)
103			{
104	sf-exg	1.66	if (align >= 0 && align <= 100)
105	sf-exg	1.206	return lerp (0, window_size - image_size, align);
106	sf-exg	1.205	else if (align > 100)
107	sf-exg	1.206	return lerp (window_size - image_size, window_size, align - 100);
108	sf-exg	1.205	else
109	sf-exg	1.206	return lerp (-image_size, 0, align + 100);
110	sasha	1.1	}
111
112			static inline int
113			make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)
114			{
115			int src_pos = 0;
116	sf-exg	1.66	dst_pos = pos;
117	sasha	1.1	dst_size = size;
118	sf-exg	1.60	if (pos < 0)
119	sasha	1.1	{
120			src_pos = -pos;
121	sf-exg	1.66	dst_pos = 0;
122	sasha	1.1	dst_size += pos;
123			}
124
125	sf-exg	1.197	min_it (dst_size, target_size - dst_pos);
126	sasha	1.1	return src_pos;
127			}
128
129	sf-exg	1.219	static void
130			parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
131			{
132			if (!strcasecmp (style, "tiled"))
133			{
134			flags = IM_TILE;
135			w = h = noScale;
136			x = y = 0;
137			}
138			else if (!strcasecmp (style, "aspect-stretched"))
139			{
140			flags = IM_KEEP_ASPECT;
141			w = h = windowScale;
142			x = y = centerAlign;
143			}
144			else if (!strcasecmp (style, "stretched"))
145			{
146			flags = 0;
147			w = h = windowScale;
148			x = y = centerAlign;
149			}
150			else if (!strcasecmp (style, "centered"))
151			{
152			flags = 0;
153			w = h = noScale;
154			x = y = centerAlign;
155			}
156			else if (!strcasecmp (style, "root-tiled"))
157			{
158			flags = IM_TILE\|IM_ROOT_ALIGN;
159			w = h = noScale;
160			x = y = 0;
161			}
162			}
163
164	sasha	1.1	bool
165	sf-exg	1.214	rxvt_image::set_geometry (const char *geom, bool update)
166	sasha	1.1	{
167	sf-exg	1.110	bool changed = false;
168			int geom_flags = 0;
169	sf-exg	1.198	int x = h_align;
170			int y = v_align;
171			unsigned int w = h_scale;
172			unsigned int h = v_scale;
173	sf-exg	1.219	uint8_t new_flags = 0;
174	sasha	1.1
175			if (geom == NULL)
176			return false;
177
178	sf-exg	1.163	if (geom[0])
179	sf-exg	1.122	{
180	sf-exg	1.163	char **arr = rxvt_strsplit (':', geom);
181	sf-exg	1.131
182	sf-exg	1.173	for (int i = 0; arr[i]; i++)
183	sasha	1.1	{
184	sf-exg	1.219	if (!strncasecmp (arr[i], "style=", 6))
185	sf-exg	1.160	{
186	sf-exg	1.219	parse_style (arr[i] + 6, x, y, w, h, new_flags);
187	sf-exg	1.160	geom_flags = WidthValue\|HeightValue\|XValue\|YValue;
188			}
189			else if (!strcasecmp (arr[i], "op=tile"))
190	sf-exg	1.214	new_flags \|= IM_TILE;
191	sf-exg	1.176	else if (!strcasecmp (arr[i], "op=keep-aspect"))
192	sf-exg	1.214	new_flags \|= IM_KEEP_ASPECT;
193	sf-exg	1.176	else if (!strcasecmp (arr[i], "op=root-align"))
194	sf-exg	1.214	new_flags \|= IM_ROOT_ALIGN;
195	sf-exg	1.160
196			// deprecated
197			else if (!strcasecmp (arr[i], "tile"))
198	sf-exg	1.122	{
199	sf-exg	1.214	new_flags \|= IM_TILE;
200	sf-exg	1.122	w = h = noScale;
201			geom_flags \|= WidthValue\|HeightValue;
202			}
203	sf-exg	1.133	else if (!strcasecmp (arr[i], "propscale"))
204	sf-exg	1.122	{
205	sf-exg	1.214	new_flags \|= IM_KEEP_ASPECT;
206	sf-exg	1.177	w = h = windowScale;
207			geom_flags \|= WidthValue\|HeightValue;
208	sf-exg	1.122	}
209	sf-exg	1.161	else if (!strcasecmp (arr[i], "hscale"))
210			{
211	sf-exg	1.214	new_flags \|= IM_TILE;
212	sf-exg	1.161	w = windowScale;
213			h = noScale;
214			geom_flags \|= WidthValue\|HeightValue;
215			}
216			else if (!strcasecmp (arr[i], "vscale"))
217			{
218	sf-exg	1.214	new_flags \|= IM_TILE;
219	sf-exg	1.161	h = windowScale;
220			w = noScale;
221			geom_flags \|= WidthValue\|HeightValue;
222			}
223	sf-exg	1.133	else if (!strcasecmp (arr[i], "scale"))
224	sf-exg	1.122	{
225	sf-exg	1.161	w = h = windowScale;
226	sf-exg	1.122	geom_flags \|= WidthValue\|HeightValue;
227			}
228	sf-exg	1.161	else if (!strcasecmp (arr[i], "auto"))
229			{
230			w = h = windowScale;
231			x = y = centerAlign;
232			geom_flags \|= WidthValue\|HeightValue\|XValue\|YValue;
233			}
234	sf-exg	1.133	else if (!strcasecmp (arr[i], "root"))
235	sf-exg	1.122	{
236	sf-exg	1.214	new_flags \|= IM_TILE\|IM_ROOT_ALIGN;
237	sf-exg	1.122	w = h = noScale;
238			geom_flags \|= WidthValue\|HeightValue;
239			}
240	sf-exg	1.163
241			else
242			geom_flags \|= XParseGeometry (arr[i], &x, &y, &w, &h);
243	sf-exg	1.131	} /* done parsing ops */
244	root	1.26
245	sf-exg	1.131	rxvt_free_strsplit (arr);
246	sf-exg	1.122	}
247	sasha	1.1
248	sf-exg	1.214	new_flags \|= flags & ~IM_GEOMETRY_FLAGS;
249	sf-exg	1.185
250	sf-exg	1.163	if (!update)
251			{
252			if (!(geom_flags & XValue))
253			x = y = defaultAlign;
254			else if (!(geom_flags & YValue))
255			y = x;
256
257			if (!(geom_flags & (WidthValue\|HeightValue)))
258			w = h = defaultScale;
259			else if (!(geom_flags & HeightValue))
260			h = w;
261			else if (!(geom_flags & WidthValue))
262			w = h;
263			}
264
265	sf-exg	1.198	clamp_it (x, -100, 200);
266			clamp_it (y, -100, 200);
267
268	sf-exg	1.214	if (flags != new_flags
269	sf-exg	1.198	\|\| h_scale != w
270			\|\| v_scale != h
271			\|\| h_align != x
272			\|\| v_align != y)
273	sasha	1.1	{
274	sf-exg	1.214	flags = new_flags;
275	sf-exg	1.198	h_scale = w;
276			v_scale = h;
277			h_align = x;
278			v_align = y;
279	sf-exg	1.110	changed = true;
280	sasha	1.1	}
281	root	1.26
282	sf-exg	1.225	if (is_size_sensitive ())
283	sf-exg	1.214	flags \|= IM_IS_SIZE_SENSITIVE;
284			else
285			flags &= ~IM_IS_SIZE_SENSITIVE;
286
287	sf-exg	1.110	return changed;
288	sasha	1.1	}
289
290	sf-exg	1.59	void
291	sf-exg	1.214	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
292	sf-exg	1.59	{
293	sf-exg	1.236	int image_width = image.img->w;
294			int image_height = image.img->h;
295	sf-exg	1.142	int target_width = szHint.width;
296			int target_height = szHint.height;
297	sf-exg	1.217	int h_scale = min (image.h_scale, 32767 * 100 / target_width);
298			int v_scale = min (image.v_scale, 32767 * 100 / target_height);
299	sf-exg	1.59
300	sf-exg	1.217	w = h_scale * target_width / 100;
301			h = v_scale * target_height / 100;
302	sf-exg	1.164
303	sf-exg	1.214	if (image.flags & IM_KEEP_ASPECT)
304	sf-exg	1.62	{
305	sf-exg	1.164	float scale = (float)w / image_width;
306			min_it (scale, (float)h / image_height);
307	sf-exg	1.62	w = image_width * scale + 0.5;
308			h = image_height * scale + 0.5;
309			}
310	sf-exg	1.59
311	sf-exg	1.68	if (!w) w = image_width;
312			if (!h) h = image_height;
313
314	sf-exg	1.214	if (image.flags & IM_ROOT_ALIGN)
315	sf-exg	1.59	{
316	sf-exg	1.121	x = -target_x;
317			y = -target_y;
318	sf-exg	1.59	}
319	sf-exg	1.63	else
320			{
321	sf-exg	1.214	x = make_align_position (image.h_align, target_width, w);
322			y = make_align_position (image.v_align, target_height, h);
323	sf-exg	1.63	}
324	sf-exg	1.59	}
325
326	sf-exg	1.127	bool
327	sf-exg	1.215	rxvt_term::render_image (rxvt_image &image)
328	sf-exg	1.55	{
329	sf-exg	1.142	int target_width = szHint.width;
330			int target_height = szHint.height;
331	sf-exg	1.55
332			int x = 0;
333			int y = 0;
334	sf-exg	1.59	int w = 0;
335			int h = 0;
336	sf-exg	1.55
337	sf-exg	1.214	get_image_geometry (image, w, h, x, y);
338	sf-exg	1.55
339	sf-exg	1.214	if (!(image.flags & IM_ROOT_ALIGN)
340	sf-exg	1.67	&& (x >= target_width
341			\|\| y >= target_height
342	sf-exg	1.172	\|\| x + w <= 0
343			\|\| y + h <= 0))
344	sf-exg	1.55	return false;
345
346	sf-exg	1.236	rxvt_img *img = image.img->scale (w, h);
347	sf-exg	1.55
348	sf-exg	1.236	if (image.flags & IM_TILE)
349			img->repeat_mode (RepeatNormal);
350	sf-exg	1.152	else
351	sf-exg	1.236	img->repeat_mode (RepeatNone);
352			img->sub_rect (-x, -y, target_width, target_height)->replace (img);
353	sf-exg	1.154
354	sf-exg	1.236	if (bg_flags & BG_IS_VALID)
355	sf-exg	1.152	{
356	sf-exg	1.236	double factor = image.alpha * 1. / 0xffff;
357			bg_img->blend (img, factor)->replace (img);
358	sf-exg	1.152	}
359	sf-exg	1.79
360	sf-exg	1.236	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
361			img->convert_format (format, pix_colors [Color_bg])->replace (img);
362	sf-exg	1.55
363	sf-exg	1.236	delete bg_img;
364			bg_img = img;
365	sf-exg	1.55
366	sf-exg	1.236	return true;
367	sf-exg	1.55	}
368
369	sf-exg	1.220	rxvt_image::rxvt_image ()
370			{
371	sf-exg	1.224	alpha = 0xffff;
372			flags = 0;
373	sf-exg	1.220	h_scale =
374	sf-exg	1.224	v_scale = defaultScale;
375	sf-exg	1.220	h_align =
376	sf-exg	1.224	v_align = defaultAlign;
377	sf-exg	1.220
378	sf-exg	1.236	img = 0;
379	sf-exg	1.220	}
380
381	sasha	1.1	bool
382	sf-exg	1.236	rxvt_image::set_file_geometry (rxvt_screen s, const char file)
383	sasha	1.1	{
384	sf-exg	1.107	if (!file \|\| !*file)
385			return false;
386	sasha	1.1
387	sf-exg	1.167	const char *p = strchr (file, ';');
388
389			if (p)
390	sasha	1.1	{
391	sf-exg	1.107	size_t len = p - file;
392			char *f = rxvt_temp_buf<char> (len + 1);
393			memcpy (f, file, len);
394			f[len] = '\0';
395			file = f;
396			}
397	root	1.25
398	sf-exg	1.236	bool ret = set_file (s, file);
399	sf-exg	1.220	alpha = 0x8000;
400	sf-exg	1.224	if (ret)
401			set_geometry (p ? p + 1 : "");
402	sf-exg	1.220	return ret;
403			}
404
405			bool
406	sf-exg	1.236	rxvt_image::set_file (rxvt_screen s, const char file)
407	sf-exg	1.220	{
408	sf-exg	1.236	delete img;
409			img = rxvt_img::new_from_file (s, file);
410			return img != 0;
411	sasha	1.1	}
412
413	ayin	1.12	# endif /* BG_IMAGE_FROM_FILE */
414	sasha	1.1
415	ayin	1.10	bool
416	sf-exg	1.226	image_effects::set_blur (const char *geom)
417	sasha	1.1	{
418	sf-exg	1.110	bool changed = false;
419	sasha	1.1	unsigned int hr, vr;
420			int junk;
421			int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
422
423	sf-exg	1.52	if (!(geom_flags & WidthValue))
424	sasha	1.1	hr = 1;
425	sf-exg	1.52	if (!(geom_flags & HeightValue))
426	sasha	1.1	vr = hr;
427
428	sf-exg	1.80	min_it (hr, 128);
429			min_it (vr, 128);
430
431	sasha	1.1	if (h_blurRadius != hr)
432			{
433	sf-exg	1.110	changed = true;
434	sasha	1.1	h_blurRadius = hr;
435			}
436
437			if (v_blurRadius != vr)
438			{
439	sf-exg	1.110	changed = true;
440	sasha	1.1	v_blurRadius = vr;
441			}
442	ayin	1.10
443	sf-exg	1.110	return changed;
444	sasha	1.1	}
445
446			bool
447	sf-exg	1.226	image_effects::set_tint (const rxvt_color &new_tint)
448	sasha	1.1	{
449	sf-exg	1.226	if (!tint_set \|\| tint != new_tint)
450	sasha	1.1	{
451			tint = new_tint;
452	sf-exg	1.226	tint_set = true;
453	sf-exg	1.203
454	sasha	1.1	return true;
455			}
456	root	1.20
457	sasha	1.1	return false;
458			}
459
460			bool
461	sf-exg	1.226	image_effects::set_shade (const char *shade_str)
462	sasha	1.1	{
463	sf-exg	1.186	int new_shade = atoi (shade_str);
464	sasha	1.1
465	sf-exg	1.75	clamp_it (new_shade, -100, 200);
466			if (new_shade < 0)
467	root	1.20	new_shade = 200 - (100 + new_shade);
468	sasha	1.1
469			if (new_shade != shade)
470			{
471			shade = new_shade;
472			return true;
473			}
474	root	1.20
475	sasha	1.1	return false;
476			}
477
478	root	1.232	# if ENABLE_TRANSPARENCY
479	sf-exg	1.149	/*
480	sf-exg	1.100	* Builds a pixmap of the same size as the terminal window that contains
481			* the tiled portion of the root pixmap that is supposed to be covered by
482	sasha	1.1	* our window.
483			*/
484	sf-exg	1.202	bool
485	sf-exg	1.228	rxvt_term::render_root_image ()
486	sasha	1.1	{
487	sf-exg	1.39	/* root dimensions may change from call to call - but Display structure should
488	sasha	1.1	* be always up-to-date, so let's use it :
489			*/
490	sf-exg	1.142	int screen = display->screen;
491	sasha	1.1	int root_width = DisplayWidth (dpy, screen);
492			int root_height = DisplayHeight (dpy, screen);
493	sf-exg	1.142	int window_width = szHint.width;
494			int window_height = szHint.height;
495	sasha	1.1	int sx, sy;
496
497	sf-exg	1.121	sx = target_x;
498			sy = target_y;
499	sasha	1.1
500	sf-exg	1.236	if (!root_img)
501			return false;
502
503	sasha	1.1	/* check if we are outside of the visible part of the virtual screen : */
504			if (sx + window_width <= 0 \|\| sy + window_height <= 0
505			\|\| sx >= root_width \|\| sy >= root_height)
506			return 0;
507
508	sf-exg	1.236	while (sx < 0) sx += root_img->w;
509			while (sy < 0) sy += root_img->h;
510	sf-exg	1.103
511	sf-exg	1.236	rxvt_img *img = root_img->sub_rect (sx, sy, window_width, window_height);
512	sf-exg	1.103
513	sf-exg	1.236	if (root_effects.need_blur ())
514			img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
515	sf-exg	1.103
516	sf-exg	1.236	if (root_effects.need_tint ())
517			tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
518	sf-exg	1.103
519	sf-exg	1.236	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
520			img->convert_format (format, pix_colors [Color_bg])->replace (img);
521	sf-exg	1.103
522	sf-exg	1.236	delete bg_img;
523			bg_img = img;
524	sf-exg	1.152
525	sf-exg	1.236	return true;
526	sasha	1.1	}
527
528	sf-exg	1.98	void
529	sf-exg	1.142	rxvt_term::bg_set_root_pixmap ()
530	sasha	1.1	{
531	sf-exg	1.236	delete root_img;
532			root_img = rxvt_img::new_from_root (this);
533	sasha	1.1	}
534			# endif /* ENABLE_TRANSPARENCY */
535
536	sf-exg	1.234	void
537	sf-exg	1.142	rxvt_term::bg_render ()
538	sasha	1.1	{
539	sf-exg	1.235	if (bg_flags & BG_INHIBIT_RENDER)
540			return;
541
542	sf-exg	1.142	bg_invalidate ();
543	root	1.232	# if ENABLE_TRANSPARENCY
544	sf-exg	1.143	if (bg_flags & BG_IS_TRANSPARENT)
545	sasha	1.1	{
546			/* we need to re-generate transparency pixmap in that case ! */
547	sf-exg	1.228	if (render_root_image ())
548	sf-exg	1.199	bg_flags \|= BG_IS_VALID;
549	sasha	1.1	}
550			# endif
551
552	root	1.232	# if BG_IMAGE_FROM_FILE
553	sf-exg	1.236	if (fimage.img)
554	sasha	1.1	{
555	sf-exg	1.233	if (render_image (fimage))
556	sf-exg	1.143	bg_flags \|= BG_IS_VALID;
557	sasha	1.1	}
558	sf-exg	1.46	# endif
559	sasha	1.7
560	sf-exg	1.143	if (!(bg_flags & BG_IS_VALID))
561	sasha	1.1	{
562	sf-exg	1.236	delete bg_img;
563			bg_img = 0;
564	sasha	1.1	}
565
566	sf-exg	1.142	scr_recolour (false);
567	sf-exg	1.143	bg_flags \|= BG_NEEDS_REFRESH;
568	sasha	1.1
569	sf-exg	1.142	bg_valid_since = ev::now ();
570	sasha	1.1	}
571
572	sf-exg	1.106	void
573	sf-exg	1.142	rxvt_term::bg_init ()
574	sasha	1.1	{
575	root	1.232	#if BG_IMAGE_FROM_FILE
576	sf-exg	1.220	if (rs[Rs_backgroundPixmap])
577			{
578	sf-exg	1.236	if (fimage.set_file_geometry (this, rs[Rs_backgroundPixmap])
579	sf-exg	1.233	&& !bg_window_position_sensitive ())
580			update_background ();
581	sf-exg	1.220	}
582			#endif
583	sasha	1.1	}
584
585	sf-exg	1.183	void
586	sf-exg	1.236	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
587	sasha	1.1	{
588	sf-exg	1.194	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
589	sf-exg	1.183
590	sf-exg	1.226	if (tint_set)
591	sf-exg	1.194	tint.get (c);
592	sf-exg	1.183
593	sf-exg	1.87	if (shade > 100)
594			{
595	sf-exg	1.184	c.r = c.r * (200 - shade) / 100;
596			c.g = c.g * (200 - shade) / 100;
597			c.b = c.b * (200 - shade) / 100;
598	sf-exg	1.87	}
599			else
600			{
601	sf-exg	1.184	c.r = c.r * shade / 100;
602			c.g = c.g * shade / 100;
603			c.b = c.b * shade / 100;
604	sf-exg	1.87	}
605	sasha	1.1
606	sf-exg	1.236	img->contrast (c.r, c.g, c.b, c.a);
607	sasha	1.1
608	sf-exg	1.236	if (shade > 100)
609	sf-exg	1.93	{
610	sf-exg	1.236	c.a = 0xffff;
611			c.r =
612			c.g =
613			c.b = 0xffff * (shade - 100) / 100;
614			img->brightness (c.r, c.g, c.b, c.a);
615	sasha	1.1	}
616			}
617	sf-exg	1.226
618			#endif /* HAVE_BG_PIXMAP */