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;
# endif

# if BG_IMAGE_FROM_FILE
  fimage.destroy ();
# endif

  delete bg_img;
}

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:	1.236
Committed:	Sun Jun 10 13:07:56 2012 UTC (11 years, 11 months ago) by sf-exg
Content type:	text/plain
Branch:	MAIN
Changes since 1.235:	+60 -716 lines
Log Message:	Switch background.C to rxvtimg api (xrender is now required).
#	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			# endif
36
37	root	1.232	# if BG_IMAGE_FROM_FILE
38	sf-exg	1.233	fimage.destroy ();
39	sf-exg	1.221	# endif
40
41	sf-exg	1.236	delete bg_img;
42	sasha	1.11	}
43	sasha	1.2
44	sasha	1.1	bool
45	sf-exg	1.142	rxvt_term::bg_set_position (int x, int y)
46	sf-exg	1.121	{
47
48			if (target_x != x
49			\|\| target_y != y)
50			{
51			target_x = x;
52			target_y = y;
53			return true;
54			}
55			return false;
56			}
57
58			bool
59	sf-exg	1.142	rxvt_term::bg_window_size_sensitive ()
60	sasha	1.1	{
61	root	1.232	# if ENABLE_TRANSPARENCY
62	sf-exg	1.143	if (bg_flags & BG_IS_TRANSPARENT)
63	sasha	1.13	return true;
64			# endif
65
66	root	1.232	# if BG_IMAGE_FROM_FILE
67	sf-exg	1.236	if (fimage.img)
68	sasha	1.1	{
69	sf-exg	1.233	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
70	sf-exg	1.236	\|\| fimage.img->w > szHint.width
71			\|\| fimage.img->h > szHint.height)
72	sasha	1.1	return true;
73			}
74			# endif
75	sasha	1.13
76			return false;
77			}
78
79	sf-exg	1.37	bool
80	sf-exg	1.142	rxvt_term::bg_window_position_sensitive ()
81	sasha	1.13	{
82	root	1.232	# if ENABLE_TRANSPARENCY
83	sf-exg	1.143	if (bg_flags & BG_IS_TRANSPARENT)
84	sasha	1.1	return true;
85			# endif
86	sasha	1.13
87	root	1.232	# if BG_IMAGE_FROM_FILE
88	sf-exg	1.236	if (fimage.img)
89	sasha	1.13	{
90	sf-exg	1.233	if (fimage.flags & IM_ROOT_ALIGN)
91	sasha	1.13	return true;
92			}
93			# endif
94
95	sasha	1.1	return false;
96	sf-exg	1.117	}
97	sasha	1.1
98	root	1.232	# if BG_IMAGE_FROM_FILE
99	sasha	1.1	static inline int
100			make_align_position (int align, int window_size, int image_size)
101			{
102	sf-exg	1.66	if (align >= 0 && align <= 100)
103	sf-exg	1.206	return lerp (0, window_size - image_size, align);
104	sf-exg	1.205	else if (align > 100)
105	sf-exg	1.206	return lerp (window_size - image_size, window_size, align - 100);
106	sf-exg	1.205	else
107	sf-exg	1.206	return lerp (-image_size, 0, align + 100);
108	sasha	1.1	}
109
110			static inline int
111			make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)
112			{
113			int src_pos = 0;
114	sf-exg	1.66	dst_pos = pos;
115	sasha	1.1	dst_size = size;
116	sf-exg	1.60	if (pos < 0)
117	sasha	1.1	{
118			src_pos = -pos;
119	sf-exg	1.66	dst_pos = 0;
120	sasha	1.1	dst_size += pos;
121			}
122
123	sf-exg	1.197	min_it (dst_size, target_size - dst_pos);
124	sasha	1.1	return src_pos;
125			}
126
127	sf-exg	1.219	static void
128			parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
129			{
130			if (!strcasecmp (style, "tiled"))
131			{
132			flags = IM_TILE;
133			w = h = noScale;
134			x = y = 0;
135			}
136			else if (!strcasecmp (style, "aspect-stretched"))
137			{
138			flags = IM_KEEP_ASPECT;
139			w = h = windowScale;
140			x = y = centerAlign;
141			}
142			else if (!strcasecmp (style, "stretched"))
143			{
144			flags = 0;
145			w = h = windowScale;
146			x = y = centerAlign;
147			}
148			else if (!strcasecmp (style, "centered"))
149			{
150			flags = 0;
151			w = h = noScale;
152			x = y = centerAlign;
153			}
154			else if (!strcasecmp (style, "root-tiled"))
155			{
156			flags = IM_TILE\|IM_ROOT_ALIGN;
157			w = h = noScale;
158			x = y = 0;
159			}
160			}
161
162	sasha	1.1	bool
163	sf-exg	1.214	rxvt_image::set_geometry (const char *geom, bool update)
164	sasha	1.1	{
165	sf-exg	1.110	bool changed = false;
166			int geom_flags = 0;
167	sf-exg	1.198	int x = h_align;
168			int y = v_align;
169			unsigned int w = h_scale;
170			unsigned int h = v_scale;
171	sf-exg	1.219	uint8_t new_flags = 0;
172	sasha	1.1
173			if (geom == NULL)
174			return false;
175
176	sf-exg	1.163	if (geom[0])
177	sf-exg	1.122	{
178	sf-exg	1.163	char **arr = rxvt_strsplit (':', geom);
179	sf-exg	1.131
180	sf-exg	1.173	for (int i = 0; arr[i]; i++)
181	sasha	1.1	{
182	sf-exg	1.219	if (!strncasecmp (arr[i], "style=", 6))
183	sf-exg	1.160	{
184	sf-exg	1.219	parse_style (arr[i] + 6, x, y, w, h, new_flags);
185	sf-exg	1.160	geom_flags = WidthValue\|HeightValue\|XValue\|YValue;
186			}
187			else if (!strcasecmp (arr[i], "op=tile"))
188	sf-exg	1.214	new_flags \|= IM_TILE;
189	sf-exg	1.176	else if (!strcasecmp (arr[i], "op=keep-aspect"))
190	sf-exg	1.214	new_flags \|= IM_KEEP_ASPECT;
191	sf-exg	1.176	else if (!strcasecmp (arr[i], "op=root-align"))
192	sf-exg	1.214	new_flags \|= IM_ROOT_ALIGN;
193	sf-exg	1.160
194			// deprecated
195			else if (!strcasecmp (arr[i], "tile"))
196	sf-exg	1.122	{
197	sf-exg	1.214	new_flags \|= IM_TILE;
198	sf-exg	1.122	w = h = noScale;
199			geom_flags \|= WidthValue\|HeightValue;
200			}
201	sf-exg	1.133	else if (!strcasecmp (arr[i], "propscale"))
202	sf-exg	1.122	{
203	sf-exg	1.214	new_flags \|= IM_KEEP_ASPECT;
204	sf-exg	1.177	w = h = windowScale;
205			geom_flags \|= WidthValue\|HeightValue;
206	sf-exg	1.122	}
207	sf-exg	1.161	else if (!strcasecmp (arr[i], "hscale"))
208			{
209	sf-exg	1.214	new_flags \|= IM_TILE;
210	sf-exg	1.161	w = windowScale;
211			h = noScale;
212			geom_flags \|= WidthValue\|HeightValue;
213			}
214			else if (!strcasecmp (arr[i], "vscale"))
215			{
216	sf-exg	1.214	new_flags \|= IM_TILE;
217	sf-exg	1.161	h = windowScale;
218			w = noScale;
219			geom_flags \|= WidthValue\|HeightValue;
220			}
221	sf-exg	1.133	else if (!strcasecmp (arr[i], "scale"))
222	sf-exg	1.122	{
223	sf-exg	1.161	w = h = windowScale;
224	sf-exg	1.122	geom_flags \|= WidthValue\|HeightValue;
225			}
226	sf-exg	1.161	else if (!strcasecmp (arr[i], "auto"))
227			{
228			w = h = windowScale;
229			x = y = centerAlign;
230			geom_flags \|= WidthValue\|HeightValue\|XValue\|YValue;
231			}
232	sf-exg	1.133	else if (!strcasecmp (arr[i], "root"))
233	sf-exg	1.122	{
234	sf-exg	1.214	new_flags \|= IM_TILE\|IM_ROOT_ALIGN;
235	sf-exg	1.122	w = h = noScale;
236			geom_flags \|= WidthValue\|HeightValue;
237			}
238	sf-exg	1.163
239			else
240			geom_flags \|= XParseGeometry (arr[i], &x, &y, &w, &h);
241	sf-exg	1.131	} /* done parsing ops */
242	root	1.26
243	sf-exg	1.131	rxvt_free_strsplit (arr);
244	sf-exg	1.122	}
245	sasha	1.1
246	sf-exg	1.214	new_flags \|= flags & ~IM_GEOMETRY_FLAGS;
247	sf-exg	1.185
248	sf-exg	1.163	if (!update)
249			{
250			if (!(geom_flags & XValue))
251			x = y = defaultAlign;
252			else if (!(geom_flags & YValue))
253			y = x;
254
255			if (!(geom_flags & (WidthValue\|HeightValue)))
256			w = h = defaultScale;
257			else if (!(geom_flags & HeightValue))
258			h = w;
259			else if (!(geom_flags & WidthValue))
260			w = h;
261			}
262
263	sf-exg	1.198	clamp_it (x, -100, 200);
264			clamp_it (y, -100, 200);
265
266	sf-exg	1.214	if (flags != new_flags
267	sf-exg	1.198	\|\| h_scale != w
268			\|\| v_scale != h
269			\|\| h_align != x
270			\|\| v_align != y)
271	sasha	1.1	{
272	sf-exg	1.214	flags = new_flags;
273	sf-exg	1.198	h_scale = w;
274			v_scale = h;
275			h_align = x;
276			v_align = y;
277	sf-exg	1.110	changed = true;
278	sasha	1.1	}
279	root	1.26
280	sf-exg	1.225	if (is_size_sensitive ())
281	sf-exg	1.214	flags \|= IM_IS_SIZE_SENSITIVE;
282			else
283			flags &= ~IM_IS_SIZE_SENSITIVE;
284
285	sf-exg	1.110	return changed;
286	sasha	1.1	}
287
288	sf-exg	1.59	void
289	sf-exg	1.214	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
290	sf-exg	1.59	{
291	sf-exg	1.236	int image_width = image.img->w;
292			int image_height = image.img->h;
293	sf-exg	1.142	int target_width = szHint.width;
294			int target_height = szHint.height;
295	sf-exg	1.217	int h_scale = min (image.h_scale, 32767 * 100 / target_width);
296			int v_scale = min (image.v_scale, 32767 * 100 / target_height);
297	sf-exg	1.59
298	sf-exg	1.217	w = h_scale * target_width / 100;
299			h = v_scale * target_height / 100;
300	sf-exg	1.164
301	sf-exg	1.214	if (image.flags & IM_KEEP_ASPECT)
302	sf-exg	1.62	{
303	sf-exg	1.164	float scale = (float)w / image_width;
304			min_it (scale, (float)h / image_height);
305	sf-exg	1.62	w = image_width * scale + 0.5;
306			h = image_height * scale + 0.5;
307			}
308	sf-exg	1.59
309	sf-exg	1.68	if (!w) w = image_width;
310			if (!h) h = image_height;
311
312	sf-exg	1.214	if (image.flags & IM_ROOT_ALIGN)
313	sf-exg	1.59	{
314	sf-exg	1.121	x = -target_x;
315			y = -target_y;
316	sf-exg	1.59	}
317	sf-exg	1.63	else
318			{
319	sf-exg	1.214	x = make_align_position (image.h_align, target_width, w);
320			y = make_align_position (image.v_align, target_height, h);
321	sf-exg	1.63	}
322	sf-exg	1.59	}
323
324	sf-exg	1.127	bool
325	sf-exg	1.215	rxvt_term::render_image (rxvt_image &image)
326	sf-exg	1.55	{
327	sf-exg	1.142	int target_width = szHint.width;
328			int target_height = szHint.height;
329	sf-exg	1.55
330			int x = 0;
331			int y = 0;
332	sf-exg	1.59	int w = 0;
333			int h = 0;
334	sf-exg	1.55
335	sf-exg	1.214	get_image_geometry (image, w, h, x, y);
336	sf-exg	1.55
337	sf-exg	1.214	if (!(image.flags & IM_ROOT_ALIGN)
338	sf-exg	1.67	&& (x >= target_width
339			\|\| y >= target_height
340	sf-exg	1.172	\|\| x + w <= 0
341			\|\| y + h <= 0))
342	sf-exg	1.55	return false;
343
344	sf-exg	1.236	rxvt_img *img = image.img->scale (w, h);
345	sf-exg	1.55
346	sf-exg	1.236	if (image.flags & IM_TILE)
347			img->repeat_mode (RepeatNormal);
348	sf-exg	1.152	else
349	sf-exg	1.236	img->repeat_mode (RepeatNone);
350			img->sub_rect (-x, -y, target_width, target_height)->replace (img);
351	sf-exg	1.154
352	sf-exg	1.236	if (bg_flags & BG_IS_VALID)
353	sf-exg	1.152	{
354	sf-exg	1.236	double factor = image.alpha * 1. / 0xffff;
355			bg_img->blend (img, factor)->replace (img);
356	sf-exg	1.152	}
357	sf-exg	1.79
358	sf-exg	1.236	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
359			img->convert_format (format, pix_colors [Color_bg])->replace (img);
360	sf-exg	1.55
361	sf-exg	1.236	delete bg_img;
362			bg_img = img;
363	sf-exg	1.55
364	sf-exg	1.236	return true;
365	sf-exg	1.55	}
366
367	sf-exg	1.220	rxvt_image::rxvt_image ()
368			{
369	sf-exg	1.224	alpha = 0xffff;
370			flags = 0;
371	sf-exg	1.220	h_scale =
372	sf-exg	1.224	v_scale = defaultScale;
373	sf-exg	1.220	h_align =
374	sf-exg	1.224	v_align = defaultAlign;
375	sf-exg	1.220
376	sf-exg	1.236	img = 0;
377	sf-exg	1.220	}
378
379	sasha	1.1	bool
380	sf-exg	1.236	rxvt_image::set_file_geometry (rxvt_screen s, const char file)
381	sasha	1.1	{
382	sf-exg	1.107	if (!file \|\| !*file)
383			return false;
384	sasha	1.1
385	sf-exg	1.167	const char *p = strchr (file, ';');
386
387			if (p)
388	sasha	1.1	{
389	sf-exg	1.107	size_t len = p - file;
390			char *f = rxvt_temp_buf<char> (len + 1);
391			memcpy (f, file, len);
392			f[len] = '\0';
393			file = f;
394			}
395	root	1.25
396	sf-exg	1.236	bool ret = set_file (s, file);
397	sf-exg	1.220	alpha = 0x8000;
398	sf-exg	1.224	if (ret)
399			set_geometry (p ? p + 1 : "");
400	sf-exg	1.220	return ret;
401			}
402
403			bool
404	sf-exg	1.236	rxvt_image::set_file (rxvt_screen s, const char file)
405	sf-exg	1.220	{
406	sf-exg	1.236	delete img;
407			img = rxvt_img::new_from_file (s, file);
408			return img != 0;
409	sasha	1.1	}
410
411	ayin	1.12	# endif /* BG_IMAGE_FROM_FILE */
412	sasha	1.1
413	ayin	1.10	bool
414	sf-exg	1.226	image_effects::set_blur (const char *geom)
415	sasha	1.1	{
416	sf-exg	1.110	bool changed = false;
417	sasha	1.1	unsigned int hr, vr;
418			int junk;
419			int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
420
421	sf-exg	1.52	if (!(geom_flags & WidthValue))
422	sasha	1.1	hr = 1;
423	sf-exg	1.52	if (!(geom_flags & HeightValue))
424	sasha	1.1	vr = hr;
425
426	sf-exg	1.80	min_it (hr, 128);
427			min_it (vr, 128);
428
429	sasha	1.1	if (h_blurRadius != hr)
430			{
431	sf-exg	1.110	changed = true;
432	sasha	1.1	h_blurRadius = hr;
433			}
434
435			if (v_blurRadius != vr)
436			{
437	sf-exg	1.110	changed = true;
438	sasha	1.1	v_blurRadius = vr;
439			}
440	ayin	1.10
441	sf-exg	1.110	return changed;
442	sasha	1.1	}
443
444			bool
445	sf-exg	1.226	image_effects::set_tint (const rxvt_color &new_tint)
446	sasha	1.1	{
447	sf-exg	1.226	if (!tint_set \|\| tint != new_tint)
448	sasha	1.1	{
449			tint = new_tint;
450	sf-exg	1.226	tint_set = true;
451	sf-exg	1.203
452	sasha	1.1	return true;
453			}
454	root	1.20
455	sasha	1.1	return false;
456			}
457
458			bool
459	sf-exg	1.226	image_effects::set_shade (const char *shade_str)
460	sasha	1.1	{
461	sf-exg	1.186	int new_shade = atoi (shade_str);
462	sasha	1.1
463	sf-exg	1.75	clamp_it (new_shade, -100, 200);
464			if (new_shade < 0)
465	root	1.20	new_shade = 200 - (100 + new_shade);
466	sasha	1.1
467			if (new_shade != shade)
468			{
469			shade = new_shade;
470			return true;
471			}
472	root	1.20
473	sasha	1.1	return false;
474			}
475
476	root	1.232	# if ENABLE_TRANSPARENCY
477	sf-exg	1.149	/*
478	sf-exg	1.100	* Builds a pixmap of the same size as the terminal window that contains
479			* the tiled portion of the root pixmap that is supposed to be covered by
480	sasha	1.1	* our window.
481			*/
482	sf-exg	1.202	bool
483	sf-exg	1.228	rxvt_term::render_root_image ()
484	sasha	1.1	{
485	sf-exg	1.39	/* root dimensions may change from call to call - but Display structure should
486	sasha	1.1	* be always up-to-date, so let's use it :
487			*/
488	sf-exg	1.142	int screen = display->screen;
489	sasha	1.1	int root_width = DisplayWidth (dpy, screen);
490			int root_height = DisplayHeight (dpy, screen);
491	sf-exg	1.142	int window_width = szHint.width;
492			int window_height = szHint.height;
493	sasha	1.1	int sx, sy;
494
495	sf-exg	1.121	sx = target_x;
496			sy = target_y;
497	sasha	1.1
498	sf-exg	1.236	if (!root_img)
499			return false;
500
501	sasha	1.1	/* check if we are outside of the visible part of the virtual screen : */
502			if (sx + window_width <= 0 \|\| sy + window_height <= 0
503			\|\| sx >= root_width \|\| sy >= root_height)
504			return 0;
505
506	sf-exg	1.236	while (sx < 0) sx += root_img->w;
507			while (sy < 0) sy += root_img->h;
508	sf-exg	1.103
509	sf-exg	1.236	rxvt_img *img = root_img->sub_rect (sx, sy, window_width, window_height);
510	sf-exg	1.103
511	sf-exg	1.236	if (root_effects.need_blur ())
512			img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
513	sf-exg	1.103
514	sf-exg	1.236	if (root_effects.need_tint ())
515			tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
516	sf-exg	1.103
517	sf-exg	1.236	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
518			img->convert_format (format, pix_colors [Color_bg])->replace (img);
519	sf-exg	1.103
520	sf-exg	1.236	delete bg_img;
521			bg_img = img;
522	sf-exg	1.152
523	sf-exg	1.236	return true;
524	sasha	1.1	}
525
526	sf-exg	1.98	void
527	sf-exg	1.142	rxvt_term::bg_set_root_pixmap ()
528	sasha	1.1	{
529	sf-exg	1.236	delete root_img;
530			root_img = rxvt_img::new_from_root (this);
531	sasha	1.1	}
532			# endif /* ENABLE_TRANSPARENCY */
533
534	sf-exg	1.234	void
535	sf-exg	1.142	rxvt_term::bg_render ()
536	sasha	1.1	{
537	sf-exg	1.235	if (bg_flags & BG_INHIBIT_RENDER)
538			return;
539
540	sf-exg	1.142	bg_invalidate ();
541	root	1.232	# if ENABLE_TRANSPARENCY
542	sf-exg	1.143	if (bg_flags & BG_IS_TRANSPARENT)
543	sasha	1.1	{
544			/* we need to re-generate transparency pixmap in that case ! */
545	sf-exg	1.228	if (render_root_image ())
546	sf-exg	1.199	bg_flags \|= BG_IS_VALID;
547	sasha	1.1	}
548			# endif
549
550	root	1.232	# if BG_IMAGE_FROM_FILE
551	sf-exg	1.236	if (fimage.img)
552	sasha	1.1	{
553	sf-exg	1.233	if (render_image (fimage))
554	sf-exg	1.143	bg_flags \|= BG_IS_VALID;
555	sasha	1.1	}
556	sf-exg	1.46	# endif
557	sasha	1.7
558	sf-exg	1.143	if (!(bg_flags & BG_IS_VALID))
559	sasha	1.1	{
560	sf-exg	1.236	delete bg_img;
561			bg_img = 0;
562	sasha	1.1	}
563
564	sf-exg	1.142	scr_recolour (false);
565	sf-exg	1.143	bg_flags \|= BG_NEEDS_REFRESH;
566	sasha	1.1
567	sf-exg	1.142	bg_valid_since = ev::now ();
568	sasha	1.1	}
569
570	sf-exg	1.106	void
571	sf-exg	1.142	rxvt_term::bg_init ()
572	sasha	1.1	{
573	root	1.232	#if BG_IMAGE_FROM_FILE
574	sf-exg	1.220	if (rs[Rs_backgroundPixmap])
575			{
576	sf-exg	1.236	if (fimage.set_file_geometry (this, rs[Rs_backgroundPixmap])
577	sf-exg	1.233	&& !bg_window_position_sensitive ())
578			update_background ();
579	sf-exg	1.220	}
580			#endif
581	sasha	1.1	}
582
583	sf-exg	1.183	void
584	sf-exg	1.236	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
585	sasha	1.1	{
586	sf-exg	1.194	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
587	sf-exg	1.183
588	sf-exg	1.226	if (tint_set)
589	sf-exg	1.194	tint.get (c);
590	sf-exg	1.183
591	sf-exg	1.87	if (shade > 100)
592			{
593	sf-exg	1.184	c.r = c.r * (200 - shade) / 100;
594			c.g = c.g * (200 - shade) / 100;
595			c.b = c.b * (200 - shade) / 100;
596	sf-exg	1.87	}
597			else
598			{
599	sf-exg	1.184	c.r = c.r * shade / 100;
600			c.g = c.g * shade / 100;
601			c.b = c.b * shade / 100;
602	sf-exg	1.87	}
603	sasha	1.1
604	sf-exg	1.236	img->contrast (c.r, c.g, c.b, c.a);
605	sasha	1.1
606	sf-exg	1.236	if (shade > 100)
607	sf-exg	1.93	{
608	sf-exg	1.236	c.a = 0xffff;
609			c.r =
610			c.g =
611			c.b = 0xffff * (shade - 100) / 100;
612			img->brightness (c.r, c.g, c.b, c.a);
613	sasha	1.1	}
614			}
615	sf-exg	1.226
616			#endif /* HAVE_BG_PIXMAP */