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 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:	1.238
Committed:	Sun Jun 10 15:48:08 2012 UTC (11 years, 11 months ago) by sf-exg
Content type:	text/plain
Branch:	MAIN
Changes since 1.237:	+0 -17 lines
Log Message:	Remove unused function.
#	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	sf-exg	1.219	static void
113			parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
114			{
115			if (!strcasecmp (style, "tiled"))
116			{
117			flags = IM_TILE;
118			w = h = noScale;
119			x = y = 0;
120			}
121			else if (!strcasecmp (style, "aspect-stretched"))
122			{
123			flags = IM_KEEP_ASPECT;
124			w = h = windowScale;
125			x = y = centerAlign;
126			}
127			else if (!strcasecmp (style, "stretched"))
128			{
129			flags = 0;
130			w = h = windowScale;
131			x = y = centerAlign;
132			}
133			else if (!strcasecmp (style, "centered"))
134			{
135			flags = 0;
136			w = h = noScale;
137			x = y = centerAlign;
138			}
139			else if (!strcasecmp (style, "root-tiled"))
140			{
141			flags = IM_TILE\|IM_ROOT_ALIGN;
142			w = h = noScale;
143			x = y = 0;
144			}
145			}
146
147	sasha	1.1	bool
148	sf-exg	1.214	rxvt_image::set_geometry (const char *geom, bool update)
149	sasha	1.1	{
150	sf-exg	1.110	bool changed = false;
151			int geom_flags = 0;
152	sf-exg	1.198	int x = h_align;
153			int y = v_align;
154			unsigned int w = h_scale;
155			unsigned int h = v_scale;
156	sf-exg	1.219	uint8_t new_flags = 0;
157	sasha	1.1
158			if (geom == NULL)
159			return false;
160
161	sf-exg	1.163	if (geom[0])
162	sf-exg	1.122	{
163	sf-exg	1.163	char **arr = rxvt_strsplit (':', geom);
164	sf-exg	1.131
165	sf-exg	1.173	for (int i = 0; arr[i]; i++)
166	sasha	1.1	{
167	sf-exg	1.219	if (!strncasecmp (arr[i], "style=", 6))
168	sf-exg	1.160	{
169	sf-exg	1.219	parse_style (arr[i] + 6, x, y, w, h, new_flags);
170	sf-exg	1.160	geom_flags = WidthValue\|HeightValue\|XValue\|YValue;
171			}
172			else if (!strcasecmp (arr[i], "op=tile"))
173	sf-exg	1.214	new_flags \|= IM_TILE;
174	sf-exg	1.176	else if (!strcasecmp (arr[i], "op=keep-aspect"))
175	sf-exg	1.214	new_flags \|= IM_KEEP_ASPECT;
176	sf-exg	1.176	else if (!strcasecmp (arr[i], "op=root-align"))
177	sf-exg	1.214	new_flags \|= IM_ROOT_ALIGN;
178	sf-exg	1.160
179			// deprecated
180			else if (!strcasecmp (arr[i], "tile"))
181	sf-exg	1.122	{
182	sf-exg	1.214	new_flags \|= IM_TILE;
183	sf-exg	1.122	w = h = noScale;
184			geom_flags \|= WidthValue\|HeightValue;
185			}
186	sf-exg	1.133	else if (!strcasecmp (arr[i], "propscale"))
187	sf-exg	1.122	{
188	sf-exg	1.214	new_flags \|= IM_KEEP_ASPECT;
189	sf-exg	1.177	w = h = windowScale;
190			geom_flags \|= WidthValue\|HeightValue;
191	sf-exg	1.122	}
192	sf-exg	1.161	else if (!strcasecmp (arr[i], "hscale"))
193			{
194	sf-exg	1.214	new_flags \|= IM_TILE;
195	sf-exg	1.161	w = windowScale;
196			h = noScale;
197			geom_flags \|= WidthValue\|HeightValue;
198			}
199			else if (!strcasecmp (arr[i], "vscale"))
200			{
201	sf-exg	1.214	new_flags \|= IM_TILE;
202	sf-exg	1.161	h = windowScale;
203			w = noScale;
204			geom_flags \|= WidthValue\|HeightValue;
205			}
206	sf-exg	1.133	else if (!strcasecmp (arr[i], "scale"))
207	sf-exg	1.122	{
208	sf-exg	1.161	w = h = windowScale;
209	sf-exg	1.122	geom_flags \|= WidthValue\|HeightValue;
210			}
211	sf-exg	1.161	else if (!strcasecmp (arr[i], "auto"))
212			{
213			w = h = windowScale;
214			x = y = centerAlign;
215			geom_flags \|= WidthValue\|HeightValue\|XValue\|YValue;
216			}
217	sf-exg	1.133	else if (!strcasecmp (arr[i], "root"))
218	sf-exg	1.122	{
219	sf-exg	1.214	new_flags \|= IM_TILE\|IM_ROOT_ALIGN;
220	sf-exg	1.122	w = h = noScale;
221			geom_flags \|= WidthValue\|HeightValue;
222			}
223	sf-exg	1.163
224			else
225			geom_flags \|= XParseGeometry (arr[i], &x, &y, &w, &h);
226	sf-exg	1.131	} /* done parsing ops */
227	root	1.26
228	sf-exg	1.131	rxvt_free_strsplit (arr);
229	sf-exg	1.122	}
230	sasha	1.1
231	sf-exg	1.214	new_flags \|= flags & ~IM_GEOMETRY_FLAGS;
232	sf-exg	1.185
233	sf-exg	1.163	if (!update)
234			{
235			if (!(geom_flags & XValue))
236			x = y = defaultAlign;
237			else if (!(geom_flags & YValue))
238			y = x;
239
240			if (!(geom_flags & (WidthValue\|HeightValue)))
241			w = h = defaultScale;
242			else if (!(geom_flags & HeightValue))
243			h = w;
244			else if (!(geom_flags & WidthValue))
245			w = h;
246			}
247
248	sf-exg	1.198	clamp_it (x, -100, 200);
249			clamp_it (y, -100, 200);
250
251	sf-exg	1.214	if (flags != new_flags
252	sf-exg	1.198	\|\| h_scale != w
253			\|\| v_scale != h
254			\|\| h_align != x
255			\|\| v_align != y)
256	sasha	1.1	{
257	sf-exg	1.214	flags = new_flags;
258	sf-exg	1.198	h_scale = w;
259			v_scale = h;
260			h_align = x;
261			v_align = y;
262	sf-exg	1.110	changed = true;
263	sasha	1.1	}
264	root	1.26
265	sf-exg	1.225	if (is_size_sensitive ())
266	sf-exg	1.214	flags \|= IM_IS_SIZE_SENSITIVE;
267			else
268			flags &= ~IM_IS_SIZE_SENSITIVE;
269
270	sf-exg	1.110	return changed;
271	sasha	1.1	}
272
273	sf-exg	1.59	void
274	sf-exg	1.214	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
275	sf-exg	1.59	{
276	sf-exg	1.236	int image_width = image.img->w;
277			int image_height = image.img->h;
278	sf-exg	1.142	int target_width = szHint.width;
279			int target_height = szHint.height;
280	sf-exg	1.217	int h_scale = min (image.h_scale, 32767 * 100 / target_width);
281			int v_scale = min (image.v_scale, 32767 * 100 / target_height);
282	sf-exg	1.59
283	sf-exg	1.217	w = h_scale * target_width / 100;
284			h = v_scale * target_height / 100;
285	sf-exg	1.164
286	sf-exg	1.214	if (image.flags & IM_KEEP_ASPECT)
287	sf-exg	1.62	{
288	sf-exg	1.164	float scale = (float)w / image_width;
289			min_it (scale, (float)h / image_height);
290	sf-exg	1.62	w = image_width * scale + 0.5;
291			h = image_height * scale + 0.5;
292			}
293	sf-exg	1.59
294	sf-exg	1.68	if (!w) w = image_width;
295			if (!h) h = image_height;
296
297	sf-exg	1.214	if (image.flags & IM_ROOT_ALIGN)
298	sf-exg	1.59	{
299	sf-exg	1.121	x = -target_x;
300			y = -target_y;
301	sf-exg	1.59	}
302	sf-exg	1.63	else
303			{
304	sf-exg	1.214	x = make_align_position (image.h_align, target_width, w);
305			y = make_align_position (image.v_align, target_height, h);
306	sf-exg	1.63	}
307	sf-exg	1.59	}
308
309	sf-exg	1.127	bool
310	sf-exg	1.215	rxvt_term::render_image (rxvt_image &image)
311	sf-exg	1.55	{
312	sf-exg	1.142	int target_width = szHint.width;
313			int target_height = szHint.height;
314	sf-exg	1.55
315			int x = 0;
316			int y = 0;
317	sf-exg	1.59	int w = 0;
318			int h = 0;
319	sf-exg	1.55
320	sf-exg	1.214	get_image_geometry (image, w, h, x, y);
321	sf-exg	1.55
322	sf-exg	1.214	if (!(image.flags & IM_ROOT_ALIGN)
323	sf-exg	1.67	&& (x >= target_width
324			\|\| y >= target_height
325	sf-exg	1.172	\|\| x + w <= 0
326			\|\| y + h <= 0))
327	sf-exg	1.55	return false;
328
329	sf-exg	1.236	rxvt_img *img = image.img->scale (w, h);
330	sf-exg	1.55
331	sf-exg	1.236	if (image.flags & IM_TILE)
332			img->repeat_mode (RepeatNormal);
333	sf-exg	1.152	else
334	sf-exg	1.236	img->repeat_mode (RepeatNone);
335			img->sub_rect (-x, -y, target_width, target_height)->replace (img);
336	sf-exg	1.154
337	sf-exg	1.236	if (bg_flags & BG_IS_VALID)
338	sf-exg	1.152	{
339	sf-exg	1.236	double factor = image.alpha * 1. / 0xffff;
340			bg_img->blend (img, factor)->replace (img);
341	sf-exg	1.152	}
342	sf-exg	1.79
343	sf-exg	1.236	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
344			img->convert_format (format, pix_colors [Color_bg])->replace (img);
345	sf-exg	1.55
346	sf-exg	1.236	delete bg_img;
347			bg_img = img;
348	sf-exg	1.55
349	sf-exg	1.236	return true;
350	sf-exg	1.55	}
351
352	sf-exg	1.220	rxvt_image::rxvt_image ()
353			{
354	sf-exg	1.224	alpha = 0xffff;
355			flags = 0;
356	sf-exg	1.220	h_scale =
357	sf-exg	1.224	v_scale = defaultScale;
358	sf-exg	1.220	h_align =
359	sf-exg	1.224	v_align = defaultAlign;
360	sf-exg	1.220
361	sf-exg	1.236	img = 0;
362	sf-exg	1.220	}
363
364	sasha	1.1	bool
365	sf-exg	1.236	rxvt_image::set_file_geometry (rxvt_screen s, const char file)
366	sasha	1.1	{
367	sf-exg	1.107	if (!file \|\| !*file)
368			return false;
369	sasha	1.1
370	sf-exg	1.167	const char *p = strchr (file, ';');
371
372			if (p)
373	sasha	1.1	{
374	sf-exg	1.107	size_t len = p - file;
375			char *f = rxvt_temp_buf<char> (len + 1);
376			memcpy (f, file, len);
377			f[len] = '\0';
378			file = f;
379			}
380	root	1.25
381	sf-exg	1.236	bool ret = set_file (s, file);
382	sf-exg	1.220	alpha = 0x8000;
383	sf-exg	1.224	if (ret)
384			set_geometry (p ? p + 1 : "");
385	sf-exg	1.220	return ret;
386			}
387
388			bool
389	sf-exg	1.236	rxvt_image::set_file (rxvt_screen s, const char file)
390	sf-exg	1.220	{
391	sf-exg	1.236	delete img;
392			img = rxvt_img::new_from_file (s, file);
393			return img != 0;
394	sasha	1.1	}
395
396	ayin	1.12	# endif /* BG_IMAGE_FROM_FILE */
397	sasha	1.1
398	ayin	1.10	bool
399	sf-exg	1.226	image_effects::set_blur (const char *geom)
400	sasha	1.1	{
401	sf-exg	1.110	bool changed = false;
402	sasha	1.1	unsigned int hr, vr;
403			int junk;
404			int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
405
406	sf-exg	1.52	if (!(geom_flags & WidthValue))
407	sasha	1.1	hr = 1;
408	sf-exg	1.52	if (!(geom_flags & HeightValue))
409	sasha	1.1	vr = hr;
410
411	sf-exg	1.80	min_it (hr, 128);
412			min_it (vr, 128);
413
414	sasha	1.1	if (h_blurRadius != hr)
415			{
416	sf-exg	1.110	changed = true;
417	sasha	1.1	h_blurRadius = hr;
418			}
419
420			if (v_blurRadius != vr)
421			{
422	sf-exg	1.110	changed = true;
423	sasha	1.1	v_blurRadius = vr;
424			}
425	ayin	1.10
426	sf-exg	1.110	return changed;
427	sasha	1.1	}
428
429			bool
430	sf-exg	1.226	image_effects::set_tint (const rxvt_color &new_tint)
431	sasha	1.1	{
432	sf-exg	1.226	if (!tint_set \|\| tint != new_tint)
433	sasha	1.1	{
434			tint = new_tint;
435	sf-exg	1.226	tint_set = true;
436	sf-exg	1.203
437	sasha	1.1	return true;
438			}
439	root	1.20
440	sasha	1.1	return false;
441			}
442
443			bool
444	sf-exg	1.226	image_effects::set_shade (const char *shade_str)
445	sasha	1.1	{
446	sf-exg	1.186	int new_shade = atoi (shade_str);
447	sasha	1.1
448	sf-exg	1.75	clamp_it (new_shade, -100, 200);
449			if (new_shade < 0)
450	root	1.20	new_shade = 200 - (100 + new_shade);
451	sasha	1.1
452			if (new_shade != shade)
453			{
454			shade = new_shade;
455			return true;
456			}
457	root	1.20
458	sasha	1.1	return false;
459			}
460
461	root	1.232	# if ENABLE_TRANSPARENCY
462	sf-exg	1.149	/*
463	sf-exg	1.100	* Builds a pixmap of the same size as the terminal window that contains
464			* the tiled portion of the root pixmap that is supposed to be covered by
465	sasha	1.1	* our window.
466			*/
467	sf-exg	1.202	bool
468	sf-exg	1.228	rxvt_term::render_root_image ()
469	sasha	1.1	{
470	sf-exg	1.39	/* root dimensions may change from call to call - but Display structure should
471	sasha	1.1	* be always up-to-date, so let's use it :
472			*/
473	sf-exg	1.142	int screen = display->screen;
474	sasha	1.1	int root_width = DisplayWidth (dpy, screen);
475			int root_height = DisplayHeight (dpy, screen);
476	sf-exg	1.142	int window_width = szHint.width;
477			int window_height = szHint.height;
478	sasha	1.1	int sx, sy;
479
480	sf-exg	1.121	sx = target_x;
481			sy = target_y;
482	sasha	1.1
483	sf-exg	1.236	if (!root_img)
484			return false;
485
486	sasha	1.1	/* check if we are outside of the visible part of the virtual screen : */
487			if (sx + window_width <= 0 \|\| sy + window_height <= 0
488			\|\| sx >= root_width \|\| sy >= root_height)
489			return 0;
490
491	sf-exg	1.236	while (sx < 0) sx += root_img->w;
492			while (sy < 0) sy += root_img->h;
493	sf-exg	1.103
494	sf-exg	1.236	rxvt_img *img = root_img->sub_rect (sx, sy, window_width, window_height);
495	sf-exg	1.103
496	sf-exg	1.236	if (root_effects.need_blur ())
497			img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
498	sf-exg	1.103
499	sf-exg	1.236	if (root_effects.need_tint ())
500			tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
501	sf-exg	1.103
502	sf-exg	1.236	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
503			img->convert_format (format, pix_colors [Color_bg])->replace (img);
504	sf-exg	1.103
505	sf-exg	1.236	delete bg_img;
506			bg_img = img;
507	sf-exg	1.152
508	sf-exg	1.236	return true;
509	sasha	1.1	}
510
511	sf-exg	1.98	void
512	sf-exg	1.142	rxvt_term::bg_set_root_pixmap ()
513	sasha	1.1	{
514	sf-exg	1.236	delete root_img;
515			root_img = rxvt_img::new_from_root (this);
516	sasha	1.1	}
517			# endif /* ENABLE_TRANSPARENCY */
518
519	sf-exg	1.234	void
520	sf-exg	1.142	rxvt_term::bg_render ()
521	sasha	1.1	{
522	sf-exg	1.235	if (bg_flags & BG_INHIBIT_RENDER)
523			return;
524
525	sf-exg	1.142	bg_invalidate ();
526	root	1.232	# if ENABLE_TRANSPARENCY
527	sf-exg	1.143	if (bg_flags & BG_IS_TRANSPARENT)
528	sasha	1.1	{
529			/* we need to re-generate transparency pixmap in that case ! */
530	sf-exg	1.228	if (render_root_image ())
531	sf-exg	1.199	bg_flags \|= BG_IS_VALID;
532	sasha	1.1	}
533			# endif
534
535	root	1.232	# if BG_IMAGE_FROM_FILE
536	sf-exg	1.236	if (fimage.img)
537	sasha	1.1	{
538	sf-exg	1.233	if (render_image (fimage))
539	sf-exg	1.143	bg_flags \|= BG_IS_VALID;
540	sasha	1.1	}
541	sf-exg	1.46	# endif
542	sasha	1.7
543	sf-exg	1.143	if (!(bg_flags & BG_IS_VALID))
544	sasha	1.1	{
545	sf-exg	1.236	delete bg_img;
546			bg_img = 0;
547	sasha	1.1	}
548
549	sf-exg	1.142	scr_recolour (false);
550	sf-exg	1.143	bg_flags \|= BG_NEEDS_REFRESH;
551	sasha	1.1
552	sf-exg	1.142	bg_valid_since = ev::now ();
553	sasha	1.1	}
554
555	sf-exg	1.106	void
556	sf-exg	1.142	rxvt_term::bg_init ()
557	sasha	1.1	{
558	root	1.232	#if BG_IMAGE_FROM_FILE
559	sf-exg	1.220	if (rs[Rs_backgroundPixmap])
560			{
561	sf-exg	1.236	if (fimage.set_file_geometry (this, rs[Rs_backgroundPixmap])
562	sf-exg	1.233	&& !bg_window_position_sensitive ())
563			update_background ();
564	sf-exg	1.220	}
565			#endif
566	sasha	1.1	}
567
568	sf-exg	1.183	void
569	sf-exg	1.236	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
570	sasha	1.1	{
571	sf-exg	1.194	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
572	sf-exg	1.183
573	sf-exg	1.226	if (tint_set)
574	sf-exg	1.194	tint.get (c);
575	sf-exg	1.183
576	sf-exg	1.87	if (shade > 100)
577			{
578	sf-exg	1.184	c.r = c.r * (200 - shade) / 100;
579			c.g = c.g * (200 - shade) / 100;
580			c.b = c.b * (200 - shade) / 100;
581	sf-exg	1.87	}
582			else
583			{
584	sf-exg	1.184	c.r = c.r * shade / 100;
585			c.g = c.g * shade / 100;
586			c.b = c.b * shade / 100;
587	sf-exg	1.87	}
588	sasha	1.1
589	sf-exg	1.236	img->contrast (c.r, c.g, c.b, c.a);
590	sasha	1.1
591	sf-exg	1.236	if (shade > 100)
592	sf-exg	1.93	{
593	sf-exg	1.236	c.a = 0xffff;
594			c.r =
595			c.g =
596			c.b = 0xffff * (shade - 100) / 100;
597			img->brightness (c.r, c.g, c.b, c.a);
598	sasha	1.1	}
599			}
600	sf-exg	1.226
601			#endif /* HAVE_BG_PIXMAP */