rxvt-unicode/src/background.C

/*----------------------------------------------------------------------*
 * File:        background.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 BG_IMAGE_FROM_ROOT
  delete root_img;
  root_img = 0;
# endif

# if BG_IMAGE_FROM_FILE
  fimage.destroy ();
# endif
}

bool
rxvt_term::bg_window_size_sensitive ()
{
# if BG_IMAGE_FROM_ROOT
  if (root_img)
    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 BG_IMAGE_FROM_ROOT
  if (root_img)
    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;
}

bool
rxvt_term::render_image (rxvt_image &image)
{
  int image_width = image.img->w;
  int image_height = image.img->h;
  int parent_width = szHint.width;
  int parent_height = szHint.height;
  int h_scale = min (image.h_scale, 32767 * 100 / parent_width);
  int v_scale = min (image.v_scale, 32767 * 100 / parent_height);

  int w;
  int h;
  int x;
  int y;

  w = h_scale * parent_width / 100;
  h = v_scale * parent_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 = -parent_x;
      y = -parent_y;
    }
  else
    {
      x = make_align_position (image.h_align, parent_width, w);
      y = make_align_position (image.v_align, parent_height, h);
    }

  if (!(image.flags & IM_ROOT_ALIGN)
      && (x >= parent_width
          || y >= parent_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, parent_width, parent_height)->replace (img);

  if (bg_img)
    img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);

  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;
}

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

  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;
    }

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

void
rxvt_image::set_file (rxvt_screen *s, const char *file)
{
  rxvt_img *img2 = rxvt_img::new_from_file (s, file);
  delete img;
  img = img2;
}

# 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 BG_IMAGE_FROM_ROOT
/*
 * 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 parent_width = szHint.width;
  int parent_height = szHint.height;
  int sx, sy;

  sx = parent_x;
  sy = parent_y;

  /* check if we are outside of the visible part of the virtual screen : */
  if (sx + parent_width <= 0 || sy + parent_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, parent_width, parent_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;
}
# endif /* BG_IMAGE_FROM_ROOT */

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

  delete bg_img;
  bg_img = 0;
  bg_flags = 0;

  if (!mapped)
    return;

# if BG_IMAGE_FROM_ROOT
  if (root_img)
    if (render_root_image ())
      bg_flags |= BG_IS_TRANSPARENT;
# endif

# if BG_IMAGE_FROM_FILE
  if (fimage.img)
    render_image (fimage);
# endif

  scr_recolour (false);
  bg_flags |= BG_NEEDS_REFRESH;

  bg_valid_since = ev::now ();
}

void
rxvt_term::bg_init ()
{
#if BG_IMAGE_FROM_ROOT
  if (option (Opt_transparent))
    {
      if (rs [Rs_blurradius])
        root_effects.set_blur (rs [Rs_blurradius]);

      if (ISSET_PIXCOLOR (Color_tint))
        root_effects.set_tint (pix_colors_focused [Color_tint]);

      if (rs [Rs_shade])
        root_effects.set_shade (rs [Rs_shade]);

      rxvt_img::new_from_root (this)->replace (root_img);
      XSelectInput (dpy, display->root, PropertyChangeMask);
      rootwin_ev.start (display, display->root);
    }
#endif

#if BG_IMAGE_FROM_FILE
  if (rs[Rs_backgroundPixmap])
    {
      fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
      if (!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:	1.255
Committed:	Mon Dec 31 12:05:34 2012 UTC (11 years, 4 months ago) by sf-exg
Content type:	text/plain
Branch:	MAIN
Changes since 1.254:	+8 -24 lines
Log Message:	Inline two methods in their callers.
#	User	Rev	Content
1	sasha	1.1	/----------------------------------------------------------------------
2	sf-exg	1.243	* File: background.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	1.246	# if BG_IMAGE_FROM_ROOT
34	sf-exg	1.236	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	sasha	1.11	}
42	sasha	1.2
43	sasha	1.1	bool
44	sf-exg	1.142	rxvt_term::bg_window_size_sensitive ()
45	sasha	1.1	{
46	sf-exg	1.246	# if BG_IMAGE_FROM_ROOT
47	sf-exg	1.254	if (root_img)
48	sasha	1.13	return true;
49			# endif
50
51	root	1.232	# if BG_IMAGE_FROM_FILE
52	sf-exg	1.236	if (fimage.img)
53	sasha	1.1	{
54	sf-exg	1.233	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
55	sf-exg	1.236	\|\| fimage.img->w > szHint.width
56			\|\| fimage.img->h > szHint.height)
57	sasha	1.1	return true;
58			}
59			# endif
60	sasha	1.13
61			return false;
62			}
63
64	sf-exg	1.37	bool
65	sf-exg	1.142	rxvt_term::bg_window_position_sensitive ()
66	sasha	1.13	{
67	sf-exg	1.246	# if BG_IMAGE_FROM_ROOT
68	sf-exg	1.254	if (root_img)
69	sasha	1.1	return true;
70			# endif
71	sasha	1.13
72	root	1.232	# if BG_IMAGE_FROM_FILE
73	sf-exg	1.236	if (fimage.img)
74	sasha	1.13	{
75	sf-exg	1.233	if (fimage.flags & IM_ROOT_ALIGN)
76	sasha	1.13	return true;
77			}
78			# endif
79
80	sasha	1.1	return false;
81	sf-exg	1.117	}
82	sasha	1.1
83	root	1.232	# if BG_IMAGE_FROM_FILE
84	sasha	1.1	static inline int
85			make_align_position (int align, int window_size, int image_size)
86			{
87	sf-exg	1.66	if (align >= 0 && align <= 100)
88	sf-exg	1.206	return lerp (0, window_size - image_size, align);
89	sf-exg	1.205	else if (align > 100)
90	sf-exg	1.206	return lerp (window_size - image_size, window_size, align - 100);
91	sf-exg	1.205	else
92	sf-exg	1.206	return lerp (-image_size, 0, align + 100);
93	sasha	1.1	}
94
95	sf-exg	1.219	static void
96			parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
97			{
98			if (!strcasecmp (style, "tiled"))
99			{
100			flags = IM_TILE;
101			w = h = noScale;
102			x = y = 0;
103			}
104			else if (!strcasecmp (style, "aspect-stretched"))
105			{
106			flags = IM_KEEP_ASPECT;
107			w = h = windowScale;
108			x = y = centerAlign;
109			}
110			else if (!strcasecmp (style, "stretched"))
111			{
112			flags = 0;
113			w = h = windowScale;
114			x = y = centerAlign;
115			}
116			else if (!strcasecmp (style, "centered"))
117			{
118			flags = 0;
119			w = h = noScale;
120			x = y = centerAlign;
121			}
122			else if (!strcasecmp (style, "root-tiled"))
123			{
124			flags = IM_TILE\|IM_ROOT_ALIGN;
125			w = h = noScale;
126			x = y = 0;
127			}
128			}
129
130	sasha	1.1	bool
131	sf-exg	1.214	rxvt_image::set_geometry (const char *geom, bool update)
132	sasha	1.1	{
133	sf-exg	1.110	bool changed = false;
134			int geom_flags = 0;
135	sf-exg	1.198	int x = h_align;
136			int y = v_align;
137			unsigned int w = h_scale;
138			unsigned int h = v_scale;
139	sf-exg	1.219	uint8_t new_flags = 0;
140	sasha	1.1
141			if (geom == NULL)
142			return false;
143
144	sf-exg	1.163	if (geom[0])
145	sf-exg	1.122	{
146	sf-exg	1.163	char **arr = rxvt_strsplit (':', geom);
147	sf-exg	1.131
148	sf-exg	1.173	for (int i = 0; arr[i]; i++)
149	sasha	1.1	{
150	sf-exg	1.219	if (!strncasecmp (arr[i], "style=", 6))
151	sf-exg	1.160	{
152	sf-exg	1.219	parse_style (arr[i] + 6, x, y, w, h, new_flags);
153	sf-exg	1.160	geom_flags = WidthValue\|HeightValue\|XValue\|YValue;
154			}
155			else if (!strcasecmp (arr[i], "op=tile"))
156	sf-exg	1.214	new_flags \|= IM_TILE;
157	sf-exg	1.176	else if (!strcasecmp (arr[i], "op=keep-aspect"))
158	sf-exg	1.214	new_flags \|= IM_KEEP_ASPECT;
159	sf-exg	1.176	else if (!strcasecmp (arr[i], "op=root-align"))
160	sf-exg	1.214	new_flags \|= IM_ROOT_ALIGN;
161	sf-exg	1.160
162			// deprecated
163			else if (!strcasecmp (arr[i], "tile"))
164	sf-exg	1.122	{
165	sf-exg	1.214	new_flags \|= IM_TILE;
166	sf-exg	1.122	w = h = noScale;
167			geom_flags \|= WidthValue\|HeightValue;
168			}
169	sf-exg	1.133	else if (!strcasecmp (arr[i], "propscale"))
170	sf-exg	1.122	{
171	sf-exg	1.214	new_flags \|= IM_KEEP_ASPECT;
172	sf-exg	1.177	w = h = windowScale;
173			geom_flags \|= WidthValue\|HeightValue;
174	sf-exg	1.122	}
175	sf-exg	1.161	else if (!strcasecmp (arr[i], "hscale"))
176			{
177	sf-exg	1.214	new_flags \|= IM_TILE;
178	sf-exg	1.161	w = windowScale;
179			h = noScale;
180			geom_flags \|= WidthValue\|HeightValue;
181			}
182			else if (!strcasecmp (arr[i], "vscale"))
183			{
184	sf-exg	1.214	new_flags \|= IM_TILE;
185	sf-exg	1.161	h = windowScale;
186			w = noScale;
187			geom_flags \|= WidthValue\|HeightValue;
188			}
189	sf-exg	1.133	else if (!strcasecmp (arr[i], "scale"))
190	sf-exg	1.122	{
191	sf-exg	1.161	w = h = windowScale;
192	sf-exg	1.122	geom_flags \|= WidthValue\|HeightValue;
193			}
194	sf-exg	1.161	else if (!strcasecmp (arr[i], "auto"))
195			{
196			w = h = windowScale;
197			x = y = centerAlign;
198			geom_flags \|= WidthValue\|HeightValue\|XValue\|YValue;
199			}
200	sf-exg	1.133	else if (!strcasecmp (arr[i], "root"))
201	sf-exg	1.122	{
202	sf-exg	1.214	new_flags \|= IM_TILE\|IM_ROOT_ALIGN;
203	sf-exg	1.122	w = h = noScale;
204			geom_flags \|= WidthValue\|HeightValue;
205			}
206	sf-exg	1.163
207			else
208			geom_flags \|= XParseGeometry (arr[i], &x, &y, &w, &h);
209	sf-exg	1.131	} /* done parsing ops */
210	root	1.26
211	sf-exg	1.131	rxvt_free_strsplit (arr);
212	sf-exg	1.122	}
213	sasha	1.1
214	sf-exg	1.214	new_flags \|= flags & ~IM_GEOMETRY_FLAGS;
215	sf-exg	1.185
216	sf-exg	1.163	if (!update)
217			{
218			if (!(geom_flags & XValue))
219			x = y = defaultAlign;
220			else if (!(geom_flags & YValue))
221			y = x;
222
223			if (!(geom_flags & (WidthValue\|HeightValue)))
224			w = h = defaultScale;
225			else if (!(geom_flags & HeightValue))
226			h = w;
227			else if (!(geom_flags & WidthValue))
228			w = h;
229			}
230
231	sf-exg	1.198	clamp_it (x, -100, 200);
232			clamp_it (y, -100, 200);
233
234	sf-exg	1.214	if (flags != new_flags
235	sf-exg	1.198	\|\| h_scale != w
236			\|\| v_scale != h
237			\|\| h_align != x
238			\|\| v_align != y)
239	sasha	1.1	{
240	sf-exg	1.214	flags = new_flags;
241	sf-exg	1.198	h_scale = w;
242			v_scale = h;
243			h_align = x;
244			v_align = y;
245	sf-exg	1.110	changed = true;
246	sasha	1.1	}
247	root	1.26
248	sf-exg	1.225	if (is_size_sensitive ())
249	sf-exg	1.214	flags \|= IM_IS_SIZE_SENSITIVE;
250			else
251			flags &= ~IM_IS_SIZE_SENSITIVE;
252
253	sf-exg	1.110	return changed;
254	sasha	1.1	}
255
256	sf-exg	1.255	bool
257			rxvt_term::render_image (rxvt_image &image)
258	sf-exg	1.59	{
259	sf-exg	1.236	int image_width = image.img->w;
260			int image_height = image.img->h;
261	sf-exg	1.240	int parent_width = szHint.width;
262			int parent_height = szHint.height;
263			int h_scale = min (image.h_scale, 32767 * 100 / parent_width);
264			int v_scale = min (image.v_scale, 32767 * 100 / parent_height);
265	sf-exg	1.59
266	sf-exg	1.255	int w;
267			int h;
268			int x;
269			int y;
270
271	sf-exg	1.240	w = h_scale * parent_width / 100;
272			h = v_scale * parent_height / 100;
273	sf-exg	1.164
274	sf-exg	1.214	if (image.flags & IM_KEEP_ASPECT)
275	sf-exg	1.62	{
276	sf-exg	1.164	float scale = (float)w / image_width;
277			min_it (scale, (float)h / image_height);
278	sf-exg	1.62	w = image_width * scale + 0.5;
279			h = image_height * scale + 0.5;
280			}
281	sf-exg	1.59
282	sf-exg	1.68	if (!w) w = image_width;
283			if (!h) h = image_height;
284
285	sf-exg	1.214	if (image.flags & IM_ROOT_ALIGN)
286	sf-exg	1.59	{
287	sf-exg	1.239	x = -parent_x;
288			y = -parent_y;
289	sf-exg	1.59	}
290	sf-exg	1.63	else
291			{
292	sf-exg	1.240	x = make_align_position (image.h_align, parent_width, w);
293			y = make_align_position (image.v_align, parent_height, h);
294	sf-exg	1.63	}
295	sf-exg	1.55
296	sf-exg	1.214	if (!(image.flags & IM_ROOT_ALIGN)
297	sf-exg	1.240	&& (x >= parent_width
298			\|\| y >= parent_height
299	sf-exg	1.172	\|\| x + w <= 0
300			\|\| y + h <= 0))
301	sf-exg	1.55	return false;
302
303	sf-exg	1.236	rxvt_img *img = image.img->scale (w, h);
304	sf-exg	1.55
305	sf-exg	1.236	if (image.flags & IM_TILE)
306			img->repeat_mode (RepeatNormal);
307	sf-exg	1.152	else
308	sf-exg	1.236	img->repeat_mode (RepeatNone);
309	sf-exg	1.240	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
310	sf-exg	1.154
311	sf-exg	1.250	if (bg_img)
312	sf-exg	1.245	img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
313	sf-exg	1.79
314	sf-exg	1.236	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
315			img->convert_format (format, pix_colors [Color_bg])->replace (img);
316	sf-exg	1.55
317	sf-exg	1.236	delete bg_img;
318			bg_img = img;
319	sf-exg	1.55
320	sf-exg	1.236	return true;
321	sf-exg	1.55	}
322
323	sf-exg	1.220	rxvt_image::rxvt_image ()
324			{
325	sf-exg	1.224	alpha = 0xffff;
326			flags = 0;
327	sf-exg	1.220	h_scale =
328	sf-exg	1.224	v_scale = defaultScale;
329	sf-exg	1.220	h_align =
330	sf-exg	1.224	v_align = defaultAlign;
331	sf-exg	1.220
332	sf-exg	1.236	img = 0;
333	sf-exg	1.220	}
334
335	sf-exg	1.241	void
336	sf-exg	1.236	rxvt_image::set_file_geometry (rxvt_screen s, const char file)
337	sasha	1.1	{
338	sf-exg	1.107	if (!file \|\| !*file)
339	sf-exg	1.241	return;
340	sasha	1.1
341	sf-exg	1.167	const char *p = strchr (file, ';');
342
343			if (p)
344	sasha	1.1	{
345	sf-exg	1.107	size_t len = p - file;
346			char *f = rxvt_temp_buf<char> (len + 1);
347			memcpy (f, file, len);
348			f[len] = '\0';
349			file = f;
350			}
351	root	1.25
352	sf-exg	1.241	set_file (s, file);
353	sf-exg	1.220	alpha = 0x8000;
354	sf-exg	1.241	set_geometry (p ? p + 1 : "");
355	sf-exg	1.220	}
356
357	sf-exg	1.241	void
358	sf-exg	1.236	rxvt_image::set_file (rxvt_screen s, const char file)
359	sf-exg	1.220	{
360	sf-exg	1.241	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
361	sf-exg	1.236	delete img;
362	sf-exg	1.241	img = img2;
363	sasha	1.1	}
364
365	ayin	1.12	# endif /* BG_IMAGE_FROM_FILE */
366	sasha	1.1
367	ayin	1.10	bool
368	sf-exg	1.226	image_effects::set_blur (const char *geom)
369	sasha	1.1	{
370	sf-exg	1.110	bool changed = false;
371	sasha	1.1	unsigned int hr, vr;
372			int junk;
373			int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
374
375	sf-exg	1.52	if (!(geom_flags & WidthValue))
376	sasha	1.1	hr = 1;
377	sf-exg	1.52	if (!(geom_flags & HeightValue))
378	sasha	1.1	vr = hr;
379
380	sf-exg	1.80	min_it (hr, 128);
381			min_it (vr, 128);
382
383	sasha	1.1	if (h_blurRadius != hr)
384			{
385	sf-exg	1.110	changed = true;
386	sasha	1.1	h_blurRadius = hr;
387			}
388
389			if (v_blurRadius != vr)
390			{
391	sf-exg	1.110	changed = true;
392	sasha	1.1	v_blurRadius = vr;
393			}
394	ayin	1.10
395	sf-exg	1.110	return changed;
396	sasha	1.1	}
397
398			bool
399	sf-exg	1.226	image_effects::set_tint (const rxvt_color &new_tint)
400	sasha	1.1	{
401	sf-exg	1.226	if (!tint_set \|\| tint != new_tint)
402	sasha	1.1	{
403			tint = new_tint;
404	sf-exg	1.226	tint_set = true;
405	sf-exg	1.203
406	sasha	1.1	return true;
407			}
408	root	1.20
409	sasha	1.1	return false;
410			}
411
412			bool
413	sf-exg	1.226	image_effects::set_shade (const char *shade_str)
414	sasha	1.1	{
415	sf-exg	1.186	int new_shade = atoi (shade_str);
416	sasha	1.1
417	sf-exg	1.75	clamp_it (new_shade, -100, 200);
418			if (new_shade < 0)
419	root	1.20	new_shade = 200 - (100 + new_shade);
420	sasha	1.1
421			if (new_shade != shade)
422			{
423			shade = new_shade;
424			return true;
425			}
426	root	1.20
427	sasha	1.1	return false;
428			}
429
430	sf-exg	1.246	# if BG_IMAGE_FROM_ROOT
431	sf-exg	1.149	/*
432	sf-exg	1.100	* Builds a pixmap of the same size as the terminal window that contains
433			* the tiled portion of the root pixmap that is supposed to be covered by
434	sasha	1.1	* our window.
435			*/
436	sf-exg	1.202	bool
437	sf-exg	1.228	rxvt_term::render_root_image ()
438	sasha	1.1	{
439	sf-exg	1.39	/* root dimensions may change from call to call - but Display structure should
440	sasha	1.1	* be always up-to-date, so let's use it :
441			*/
442	sf-exg	1.142	int screen = display->screen;
443	sasha	1.1	int root_width = DisplayWidth (dpy, screen);
444			int root_height = DisplayHeight (dpy, screen);
445	sf-exg	1.240	int parent_width = szHint.width;
446			int parent_height = szHint.height;
447	sasha	1.1	int sx, sy;
448
449	sf-exg	1.239	sx = parent_x;
450			sy = parent_y;
451	sasha	1.1
452			/* check if we are outside of the visible part of the virtual screen : */
453	sf-exg	1.240	if (sx + parent_width <= 0 \|\| sy + parent_height <= 0
454	sasha	1.1	\|\| sx >= root_width \|\| sy >= root_height)
455			return 0;
456
457	sf-exg	1.236	while (sx < 0) sx += root_img->w;
458			while (sy < 0) sy += root_img->h;
459	sf-exg	1.103
460	sf-exg	1.240	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
461	sf-exg	1.103
462	sf-exg	1.236	if (root_effects.need_blur ())
463			img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
464	sf-exg	1.103
465	sf-exg	1.236	if (root_effects.need_tint ())
466			tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
467	sf-exg	1.103
468	sf-exg	1.236	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
469			img->convert_format (format, pix_colors [Color_bg])->replace (img);
470	sf-exg	1.103
471	sf-exg	1.236	delete bg_img;
472			bg_img = img;
473	sf-exg	1.152
474	sf-exg	1.236	return true;
475	sasha	1.1	}
476	sf-exg	1.246	# endif /* BG_IMAGE_FROM_ROOT */
477	sasha	1.1
478	sf-exg	1.234	void
479	sf-exg	1.142	rxvt_term::bg_render ()
480	sasha	1.1	{
481	sf-exg	1.235	if (bg_flags & BG_INHIBIT_RENDER)
482			return;
483
484	sf-exg	1.250	delete bg_img;
485			bg_img = 0;
486	sf-exg	1.251	bg_flags = 0;
487	sf-exg	1.249
488	sf-exg	1.252	if (!mapped)
489			return;
490
491	sf-exg	1.246	# if BG_IMAGE_FROM_ROOT
492	sf-exg	1.254	if (root_img)
493	sf-exg	1.253	if (render_root_image ())
494			bg_flags \|= BG_IS_TRANSPARENT;
495	sasha	1.1	# endif
496
497	root	1.232	# if BG_IMAGE_FROM_FILE
498	sf-exg	1.236	if (fimage.img)
499	sf-exg	1.253	render_image (fimage);
500	sf-exg	1.46	# endif
501	sasha	1.7
502	sf-exg	1.142	scr_recolour (false);
503	sf-exg	1.143	bg_flags \|= BG_NEEDS_REFRESH;
504	sasha	1.1
505	sf-exg	1.142	bg_valid_since = ev::now ();
506	sasha	1.1	}
507
508	sf-exg	1.106	void
509	sf-exg	1.142	rxvt_term::bg_init ()
510	sasha	1.1	{
511	sf-exg	1.246	#if BG_IMAGE_FROM_ROOT
512	sf-exg	1.242	if (option (Opt_transparent))
513			{
514			if (rs [Rs_blurradius])
515			root_effects.set_blur (rs [Rs_blurradius]);
516
517			if (ISSET_PIXCOLOR (Color_tint))
518			root_effects.set_tint (pix_colors_focused [Color_tint]);
519
520			if (rs [Rs_shade])
521			root_effects.set_shade (rs [Rs_shade]);
522
523	sf-exg	1.255	rxvt_img::new_from_root (this)->replace (root_img);
524	sf-exg	1.242	XSelectInput (dpy, display->root, PropertyChangeMask);
525			rootwin_ev.start (display, display->root);
526			}
527			#endif
528
529	root	1.232	#if BG_IMAGE_FROM_FILE
530	sf-exg	1.220	if (rs[Rs_backgroundPixmap])
531			{
532	sf-exg	1.241	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
533			if (!bg_window_position_sensitive ())
534	sf-exg	1.233	update_background ();
535	sf-exg	1.220	}
536			#endif
537	sasha	1.1	}
538
539	sf-exg	1.183	void
540	sf-exg	1.236	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
541	sasha	1.1	{
542	sf-exg	1.194	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
543	sf-exg	1.183
544	sf-exg	1.226	if (tint_set)
545	sf-exg	1.194	tint.get (c);
546	sf-exg	1.183
547	sf-exg	1.87	if (shade > 100)
548			{
549	sf-exg	1.184	c.r = c.r * (200 - shade) / 100;
550			c.g = c.g * (200 - shade) / 100;
551			c.b = c.b * (200 - shade) / 100;
552	sf-exg	1.87	}
553			else
554			{
555	sf-exg	1.184	c.r = c.r * shade / 100;
556			c.g = c.g * shade / 100;
557			c.b = c.b * shade / 100;
558	sf-exg	1.87	}
559	sasha	1.1
560	sf-exg	1.236	img->contrast (c.r, c.g, c.b, c.a);
561	sasha	1.1
562	sf-exg	1.236	if (shade > 100)
563	sf-exg	1.93	{
564	sf-exg	1.236	c.a = 0xffff;
565			c.r =
566			c.g =
567			c.b = 0xffff * (shade - 100) / 100;
568			img->brightness (c.r, c.g, c.b, c.a);
569	sasha	1.1	}
570			}
571	sf-exg	1.226
572			#endif /* HAVE_BG_PIXMAP */