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/*----------------------------------------------------------------------* |
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* File: background.C - former xpm.C |
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*----------------------------------------------------------------------* |
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* |
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* All portions of code are copyright by their respective author/s. |
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* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de> |
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* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net> |
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* Copyright (c) 2010-2012 Emanuele Giaquinta <e.giaquinta@glauco.it> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*---------------------------------------------------------------------*/ |
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|
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#include "../config.h" /* NECESSARY */ |
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#include "rxvt.h" /* NECESSARY */ |
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|
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#ifdef HAVE_BG_PIXMAP |
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|
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void |
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rxvt_term::bg_destroy () |
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{ |
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# if ENABLE_TRANSPARENCY |
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delete root_img; |
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root_img = 0; |
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# endif |
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|
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# if BG_IMAGE_FROM_FILE |
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fimage.destroy (); |
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# endif |
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|
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delete bg_img; |
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bg_img = 0; |
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} |
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|
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bool |
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rxvt_term::bg_window_size_sensitive () |
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{ |
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# if ENABLE_TRANSPARENCY |
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if (bg_flags & BG_IS_TRANSPARENT) |
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return true; |
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# endif |
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|
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# if BG_IMAGE_FROM_FILE |
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if (fimage.img) |
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{ |
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if ((fimage.flags & IM_IS_SIZE_SENSITIVE) |
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|| fimage.img->w > szHint.width |
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|| fimage.img->h > szHint.height) |
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return true; |
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} |
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# endif |
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|
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return false; |
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} |
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|
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bool |
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rxvt_term::bg_window_position_sensitive () |
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{ |
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# if ENABLE_TRANSPARENCY |
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if (bg_flags & BG_IS_TRANSPARENT) |
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return true; |
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# endif |
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|
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# if BG_IMAGE_FROM_FILE |
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if (fimage.img) |
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{ |
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if (fimage.flags & IM_ROOT_ALIGN) |
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return true; |
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} |
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# endif |
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|
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return false; |
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} |
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|
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# if BG_IMAGE_FROM_FILE |
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static inline int |
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make_align_position (int align, int window_size, int image_size) |
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{ |
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if (align >= 0 && align <= 100) |
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return lerp (0, window_size - image_size, align); |
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else if (align > 100) |
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return lerp (window_size - image_size, window_size, align - 100); |
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else |
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return lerp (-image_size, 0, align + 100); |
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} |
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|
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static void |
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parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags) |
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{ |
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if (!strcasecmp (style, "tiled")) |
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{ |
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flags = IM_TILE; |
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w = h = noScale; |
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x = y = 0; |
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} |
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else if (!strcasecmp (style, "aspect-stretched")) |
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{ |
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flags = IM_KEEP_ASPECT; |
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w = h = windowScale; |
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x = y = centerAlign; |
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} |
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else if (!strcasecmp (style, "stretched")) |
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{ |
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flags = 0; |
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w = h = windowScale; |
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x = y = centerAlign; |
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} |
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else if (!strcasecmp (style, "centered")) |
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{ |
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flags = 0; |
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w = h = noScale; |
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x = y = centerAlign; |
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} |
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else if (!strcasecmp (style, "root-tiled")) |
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{ |
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flags = IM_TILE|IM_ROOT_ALIGN; |
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w = h = noScale; |
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x = y = 0; |
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} |
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} |
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|
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bool |
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rxvt_image::set_geometry (const char *geom, bool update) |
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{ |
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bool changed = false; |
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int geom_flags = 0; |
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int x = h_align; |
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int y = v_align; |
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unsigned int w = h_scale; |
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unsigned int h = v_scale; |
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uint8_t new_flags = 0; |
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|
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if (geom == NULL) |
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return false; |
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|
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if (geom[0]) |
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{ |
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char **arr = rxvt_strsplit (':', geom); |
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|
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for (int i = 0; arr[i]; i++) |
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{ |
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if (!strncasecmp (arr[i], "style=", 6)) |
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{ |
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parse_style (arr[i] + 6, x, y, w, h, new_flags); |
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geom_flags = WidthValue|HeightValue|XValue|YValue; |
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} |
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else if (!strcasecmp (arr[i], "op=tile")) |
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new_flags |= IM_TILE; |
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else if (!strcasecmp (arr[i], "op=keep-aspect")) |
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new_flags |= IM_KEEP_ASPECT; |
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else if (!strcasecmp (arr[i], "op=root-align")) |
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new_flags |= IM_ROOT_ALIGN; |
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|
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// deprecated |
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else if (!strcasecmp (arr[i], "tile")) |
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{ |
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new_flags |= IM_TILE; |
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w = h = noScale; |
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geom_flags |= WidthValue|HeightValue; |
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} |
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else if (!strcasecmp (arr[i], "propscale")) |
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{ |
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new_flags |= IM_KEEP_ASPECT; |
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w = h = windowScale; |
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geom_flags |= WidthValue|HeightValue; |
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} |
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else if (!strcasecmp (arr[i], "hscale")) |
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{ |
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new_flags |= IM_TILE; |
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w = windowScale; |
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h = noScale; |
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geom_flags |= WidthValue|HeightValue; |
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} |
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else if (!strcasecmp (arr[i], "vscale")) |
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{ |
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new_flags |= IM_TILE; |
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h = windowScale; |
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w = noScale; |
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geom_flags |= WidthValue|HeightValue; |
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} |
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else if (!strcasecmp (arr[i], "scale")) |
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{ |
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w = h = windowScale; |
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geom_flags |= WidthValue|HeightValue; |
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} |
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else if (!strcasecmp (arr[i], "auto")) |
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{ |
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w = h = windowScale; |
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x = y = centerAlign; |
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geom_flags |= WidthValue|HeightValue|XValue|YValue; |
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} |
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else if (!strcasecmp (arr[i], "root")) |
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{ |
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new_flags |= IM_TILE|IM_ROOT_ALIGN; |
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w = h = noScale; |
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geom_flags |= WidthValue|HeightValue; |
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} |
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|
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else |
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geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h); |
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} /* done parsing ops */ |
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|
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rxvt_free_strsplit (arr); |
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} |
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|
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new_flags |= flags & ~IM_GEOMETRY_FLAGS; |
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|
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if (!update) |
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{ |
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if (!(geom_flags & XValue)) |
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x = y = defaultAlign; |
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else if (!(geom_flags & YValue)) |
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y = x; |
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|
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if (!(geom_flags & (WidthValue|HeightValue))) |
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w = h = defaultScale; |
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else if (!(geom_flags & HeightValue)) |
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h = w; |
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else if (!(geom_flags & WidthValue)) |
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w = h; |
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} |
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|
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clamp_it (x, -100, 200); |
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clamp_it (y, -100, 200); |
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|
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if (flags != new_flags |
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|| h_scale != w |
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|| v_scale != h |
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|| h_align != x |
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|| v_align != y) |
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{ |
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flags = new_flags; |
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h_scale = w; |
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v_scale = h; |
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h_align = x; |
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v_align = y; |
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changed = true; |
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} |
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|
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if (is_size_sensitive ()) |
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flags |= IM_IS_SIZE_SENSITIVE; |
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else |
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flags &= ~IM_IS_SIZE_SENSITIVE; |
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|
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return changed; |
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} |
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|
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void |
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rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y) |
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{ |
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int image_width = image.img->w; |
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int image_height = image.img->h; |
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int parent_width = szHint.width; |
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int parent_height = szHint.height; |
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int h_scale = min (image.h_scale, 32767 * 100 / parent_width); |
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int v_scale = min (image.v_scale, 32767 * 100 / parent_height); |
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|
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w = h_scale * parent_width / 100; |
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h = v_scale * parent_height / 100; |
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|
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if (image.flags & IM_KEEP_ASPECT) |
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{ |
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float scale = (float)w / image_width; |
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min_it (scale, (float)h / image_height); |
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w = image_width * scale + 0.5; |
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h = image_height * scale + 0.5; |
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} |
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|
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if (!w) w = image_width; |
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if (!h) h = image_height; |
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|
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if (image.flags & IM_ROOT_ALIGN) |
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{ |
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x = -parent_x; |
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y = -parent_y; |
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} |
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else |
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{ |
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x = make_align_position (image.h_align, parent_width, w); |
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y = make_align_position (image.v_align, parent_height, h); |
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} |
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} |
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|
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bool |
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rxvt_term::render_image (rxvt_image &image) |
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{ |
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int parent_width = szHint.width; |
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int parent_height = szHint.height; |
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|
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int x = 0; |
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int y = 0; |
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int w = 0; |
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int h = 0; |
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|
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get_image_geometry (image, w, h, x, y); |
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|
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if (!(image.flags & IM_ROOT_ALIGN) |
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&& (x >= parent_width |
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|| y >= parent_height |
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|| x + w <= 0 |
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|| y + h <= 0)) |
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return false; |
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|
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rxvt_img *img = image.img->scale (w, h); |
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|
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if (image.flags & IM_TILE) |
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img->repeat_mode (RepeatNormal); |
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else |
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img->repeat_mode (RepeatNone); |
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img->sub_rect (-x, -y, parent_width, parent_height)->replace (img); |
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|
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if (bg_flags & BG_IS_VALID) |
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{ |
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double factor = image.alpha * 1. / 0xffff; |
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bg_img->blend (img, factor)->replace (img); |
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} |
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|
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XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); |
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img->convert_format (format, pix_colors [Color_bg])->replace (img); |
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|
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delete bg_img; |
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bg_img = img; |
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|
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return true; |
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} |
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|
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rxvt_image::rxvt_image () |
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{ |
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alpha = 0xffff; |
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flags = 0; |
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h_scale = |
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v_scale = defaultScale; |
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h_align = |
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v_align = defaultAlign; |
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|
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img = 0; |
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} |
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|
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void |
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rxvt_image::set_file_geometry (rxvt_screen *s, const char *file) |
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{ |
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if (!file || !*file) |
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return; |
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|
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const char *p = strchr (file, ';'); |
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|
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if (p) |
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{ |
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size_t len = p - file; |
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char *f = rxvt_temp_buf<char> (len + 1); |
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memcpy (f, file, len); |
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f[len] = '\0'; |
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file = f; |
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} |
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|
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set_file (s, file); |
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alpha = 0x8000; |
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set_geometry (p ? p + 1 : ""); |
| 370 |
} |
| 371 |
|
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void |
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rxvt_image::set_file (rxvt_screen *s, const char *file) |
| 374 |
{ |
| 375 |
rxvt_img *img2 = rxvt_img::new_from_file (s, file); |
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delete img; |
| 377 |
img = img2; |
| 378 |
} |
| 379 |
|
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# endif /* BG_IMAGE_FROM_FILE */ |
| 381 |
|
| 382 |
bool |
| 383 |
image_effects::set_blur (const char *geom) |
| 384 |
{ |
| 385 |
bool changed = false; |
| 386 |
unsigned int hr, vr; |
| 387 |
int junk; |
| 388 |
int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr); |
| 389 |
|
| 390 |
if (!(geom_flags & WidthValue)) |
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hr = 1; |
| 392 |
if (!(geom_flags & HeightValue)) |
| 393 |
vr = hr; |
| 394 |
|
| 395 |
min_it (hr, 128); |
| 396 |
min_it (vr, 128); |
| 397 |
|
| 398 |
if (h_blurRadius != hr) |
| 399 |
{ |
| 400 |
changed = true; |
| 401 |
h_blurRadius = hr; |
| 402 |
} |
| 403 |
|
| 404 |
if (v_blurRadius != vr) |
| 405 |
{ |
| 406 |
changed = true; |
| 407 |
v_blurRadius = vr; |
| 408 |
} |
| 409 |
|
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return changed; |
| 411 |
} |
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|
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bool |
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image_effects::set_tint (const rxvt_color &new_tint) |
| 415 |
{ |
| 416 |
if (!tint_set || tint != new_tint) |
| 417 |
{ |
| 418 |
tint = new_tint; |
| 419 |
tint_set = true; |
| 420 |
|
| 421 |
return true; |
| 422 |
} |
| 423 |
|
| 424 |
return false; |
| 425 |
} |
| 426 |
|
| 427 |
bool |
| 428 |
image_effects::set_shade (const char *shade_str) |
| 429 |
{ |
| 430 |
int new_shade = atoi (shade_str); |
| 431 |
|
| 432 |
clamp_it (new_shade, -100, 200); |
| 433 |
if (new_shade < 0) |
| 434 |
new_shade = 200 - (100 + new_shade); |
| 435 |
|
| 436 |
if (new_shade != shade) |
| 437 |
{ |
| 438 |
shade = new_shade; |
| 439 |
return true; |
| 440 |
} |
| 441 |
|
| 442 |
return false; |
| 443 |
} |
| 444 |
|
| 445 |
# if ENABLE_TRANSPARENCY |
| 446 |
/* |
| 447 |
* Builds a pixmap of the same size as the terminal window that contains |
| 448 |
* the tiled portion of the root pixmap that is supposed to be covered by |
| 449 |
* our window. |
| 450 |
*/ |
| 451 |
bool |
| 452 |
rxvt_term::render_root_image () |
| 453 |
{ |
| 454 |
/* root dimensions may change from call to call - but Display structure should |
| 455 |
* be always up-to-date, so let's use it : |
| 456 |
*/ |
| 457 |
int screen = display->screen; |
| 458 |
int root_width = DisplayWidth (dpy, screen); |
| 459 |
int root_height = DisplayHeight (dpy, screen); |
| 460 |
int parent_width = szHint.width; |
| 461 |
int parent_height = szHint.height; |
| 462 |
int sx, sy; |
| 463 |
|
| 464 |
sx = parent_x; |
| 465 |
sy = parent_y; |
| 466 |
|
| 467 |
if (!root_img) |
| 468 |
return false; |
| 469 |
|
| 470 |
/* check if we are outside of the visible part of the virtual screen : */ |
| 471 |
if (sx + parent_width <= 0 || sy + parent_height <= 0 |
| 472 |
|| sx >= root_width || sy >= root_height) |
| 473 |
return 0; |
| 474 |
|
| 475 |
while (sx < 0) sx += root_img->w; |
| 476 |
while (sy < 0) sy += root_img->h; |
| 477 |
|
| 478 |
rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height); |
| 479 |
|
| 480 |
if (root_effects.need_blur ()) |
| 481 |
img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img); |
| 482 |
|
| 483 |
if (root_effects.need_tint ()) |
| 484 |
tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade); |
| 485 |
|
| 486 |
XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); |
| 487 |
img->convert_format (format, pix_colors [Color_bg])->replace (img); |
| 488 |
|
| 489 |
delete bg_img; |
| 490 |
bg_img = img; |
| 491 |
|
| 492 |
return true; |
| 493 |
} |
| 494 |
|
| 495 |
void |
| 496 |
rxvt_term::bg_set_root_pixmap () |
| 497 |
{ |
| 498 |
delete root_img; |
| 499 |
root_img = rxvt_img::new_from_root (this); |
| 500 |
} |
| 501 |
# endif /* ENABLE_TRANSPARENCY */ |
| 502 |
|
| 503 |
void |
| 504 |
rxvt_term::bg_render () |
| 505 |
{ |
| 506 |
if (bg_flags & BG_INHIBIT_RENDER) |
| 507 |
return; |
| 508 |
|
| 509 |
bg_invalidate (); |
| 510 |
# if ENABLE_TRANSPARENCY |
| 511 |
if (bg_flags & BG_IS_TRANSPARENT) |
| 512 |
{ |
| 513 |
/* we need to re-generate transparency pixmap in that case ! */ |
| 514 |
if (render_root_image ()) |
| 515 |
bg_flags |= BG_IS_VALID; |
| 516 |
} |
| 517 |
# endif |
| 518 |
|
| 519 |
# if BG_IMAGE_FROM_FILE |
| 520 |
if (fimage.img) |
| 521 |
{ |
| 522 |
if (render_image (fimage)) |
| 523 |
bg_flags |= BG_IS_VALID; |
| 524 |
} |
| 525 |
# endif |
| 526 |
|
| 527 |
if (!(bg_flags & BG_IS_VALID)) |
| 528 |
{ |
| 529 |
delete bg_img; |
| 530 |
bg_img = 0; |
| 531 |
} |
| 532 |
|
| 533 |
scr_recolour (false); |
| 534 |
bg_flags |= BG_NEEDS_REFRESH; |
| 535 |
|
| 536 |
bg_valid_since = ev::now (); |
| 537 |
} |
| 538 |
|
| 539 |
void |
| 540 |
rxvt_term::bg_init () |
| 541 |
{ |
| 542 |
#if BG_IMAGE_FROM_FILE |
| 543 |
if (rs[Rs_backgroundPixmap]) |
| 544 |
{ |
| 545 |
fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]); |
| 546 |
if (!bg_window_position_sensitive ()) |
| 547 |
update_background (); |
| 548 |
} |
| 549 |
#endif |
| 550 |
} |
| 551 |
|
| 552 |
void |
| 553 |
rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade) |
| 554 |
{ |
| 555 |
rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC); |
| 556 |
|
| 557 |
if (tint_set) |
| 558 |
tint.get (c); |
| 559 |
|
| 560 |
if (shade > 100) |
| 561 |
{ |
| 562 |
c.r = c.r * (200 - shade) / 100; |
| 563 |
c.g = c.g * (200 - shade) / 100; |
| 564 |
c.b = c.b * (200 - shade) / 100; |
| 565 |
} |
| 566 |
else |
| 567 |
{ |
| 568 |
c.r = c.r * shade / 100; |
| 569 |
c.g = c.g * shade / 100; |
| 570 |
c.b = c.b * shade / 100; |
| 571 |
} |
| 572 |
|
| 573 |
img->contrast (c.r, c.g, c.b, c.a); |
| 574 |
|
| 575 |
if (shade > 100) |
| 576 |
{ |
| 577 |
c.a = 0xffff; |
| 578 |
c.r = |
| 579 |
c.g = |
| 580 |
c.b = 0xffff * (shade - 100) / 100; |
| 581 |
img->brightness (c.r, c.g, c.b, c.a); |
| 582 |
} |
| 583 |
} |
| 584 |
|
| 585 |
#endif /* HAVE_BG_PIXMAP */ |
