1260 lines
29 KiB
C
1260 lines
29 KiB
C
/*
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* $Id$
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*
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* Copyright © 2003 Keith Packard
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Keith Packard not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Keith Packard makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/* Modified by Matthew Hawn. I don't know what to say here so follow what it
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says above. Not that I can really do anything about it
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <math.h>
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#include <sys/poll.h>
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#include <sys/time.h>
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#include <time.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/extensions/Xcomposite.h>
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#include <X11/extensions/Xdamage.h>
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#include <X11/extensions/Xrender.h>
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typedef struct _win {
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struct _win *next;
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Window id;
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XWindowAttributes a;
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int mode;
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int damaged;
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Damage damage;
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Picture picture;
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XserverRegion borderSize;
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XserverRegion extents;
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Picture shadow;
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int shadow_dx;
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int shadow_dy;
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int shadow_width;
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int shadow_height;
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unsigned long damage_sequence; /* sequence when damage was created */
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/* for drawing translucent windows */
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XserverRegion borderClip;
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struct _win *prev_trans;
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} win;
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typedef struct _conv {
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int size;
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double *data;
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} conv;
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win *list;
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Display *dpy;
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int scr;
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Window root;
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Picture rootPicture;
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Picture rootBuffer;
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Picture transPicture;
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Picture blackPicture;
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Picture rootTile;
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XserverRegion allDamage;
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Bool clipChanged;
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int root_height, root_width;
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/* find these once and be done with it */
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Atom transPropAtom;
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Atom intAtom;
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/* translucency property name */
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#define TRANS_PROP "CM_TRANSLUCENCY"
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conv *gaussianMap;
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#define WINDOW_SOLID 0
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#define WINDOW_TRANS 1
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#define WINDOW_ARGB 2
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#define TRANS_OPACITY 0.75
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#define SHADOW_RADIUS 8
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#define SHADOW_OPACITY 0.75
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#define SHADOW_OFFSET_X (-SHADOW_RADIUS * 3 / 2)
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#define SHADOW_OFFSET_Y (-SHADOW_RADIUS * 2 / 2)
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#define DEBUG_REPAINT 0
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#define DEBUG_EVENTS 0
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#define MONITOR_REPAINT 0
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static double
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gaussian (double r, double x, double y)
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{
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return ((1 / (sqrt (2 * M_PI * r))) *
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exp ((- (x * x + y * y)) / (2 * r * r)));
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}
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static conv *
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make_gaussian_map (Display *dpy, double r)
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{
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conv *c;
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int size = ((int) ceil ((r * 3)) + 1) & ~1;
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int center = size / 2;
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int x, y;
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double t;
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double g;
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c = malloc (sizeof (conv) + size * size * sizeof (double));
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c->size = size;
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c->data = (double *) (c + 1);
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for (y = 0; y < size; y++)
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for (x = 0; x < size; x++)
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{
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g = gaussian (r, (double) (x - center), (double) (y - center));
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t += g;
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c->data[y * size + x] = g;
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}
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/* printf ("gaussian total %f\n", t); */
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for (y = 0; y < size; y++)
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for (x = 0; x < size; x++)
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{
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c->data[y*size + x] /= t;
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}
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return c;
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}
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/*
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* A picture will help
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*
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* -center 0 width width+center
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* -center +-----+-------------------+-----+
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* | | | |
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* | | | |
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* 0 +-----+-------------------+-----+
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* | | | |
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* | | | |
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* | | | |
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* height +-----+-------------------+-----+
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* | | | |
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* height+ | | | |
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* center +-----+-------------------+-----+
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*/
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static unsigned char
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sum_gaussian (conv *map, double opacity, int x, int y, int width, int height)
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{
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int fx, fy;
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double *g_data;
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double *g_line = map->data;
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int g_size = map->size;
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int center = g_size / 2;
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int fx_start, fx_end;
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int fy_start, fy_end;
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double v;
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/*
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* Compute set of filter values which are "in range",
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* that's the set with:
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* 0 <= x + (fx-center) && x + (fx-center) < width &&
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* 0 <= y + (fy-center) && y + (fy-center) < height
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*
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* 0 <= x + (fx - center) x + fx - center < width
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* center - x <= fx fx < width + center - x
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*/
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fx_start = center - x;
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if (fx_start < 0)
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fx_start = 0;
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fx_end = width + center - x;
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if (fx_end > g_size)
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fx_end = g_size;
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fy_start = center - y;
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if (fy_start < 0)
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fy_start = 0;
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fy_end = height + center - y;
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if (fy_end > g_size)
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fy_end = g_size;
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g_line = g_line + fy_start * g_size + fx_start;
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v = 0;
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for (fy = fy_start; fy < fy_end; fy++)
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{
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g_data = g_line;
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g_line += g_size;
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for (fx = fx_start; fx < fx_end; fx++)
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v += *g_data++;
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}
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if (v > 1)
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v = 1;
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return ((unsigned char) (v * opacity * 255.0));
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}
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static XImage *
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make_shadow (Display *dpy, double opacity, int width, int height)
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{
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XImage *ximage;
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unsigned char *data;
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int gsize = gaussianMap->size;
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int ylimit, xlimit;
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int swidth = width + gsize;
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int sheight = height + gsize;
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int center = gsize / 2;
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int x, y;
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unsigned char d;
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int x_diff;
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data = malloc (swidth * sheight * sizeof (unsigned char));
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ximage = XCreateImage (dpy,
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DefaultVisual(dpy, DefaultScreen(dpy)),
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8,
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ZPixmap,
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0,
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(char *) data,
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swidth, sheight, 8, swidth * sizeof (unsigned char));
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/*
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* Build the gaussian in sections
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*/
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/*
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* center (fill the complete data array)
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*/
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d = sum_gaussian (gaussianMap, opacity, center, center, width, height);
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memset(data, d, sheight * swidth);
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/*
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* corners
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*/
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ylimit = gsize;
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if (ylimit > sheight / 2)
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ylimit = (sheight + 1) / 2;
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xlimit = gsize;
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if (xlimit > swidth / 2)
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xlimit = (swidth + 1) / 2;
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for (y = 0; y < ylimit; y++)
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for (x = 0; x < xlimit; x++)
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{
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d = sum_gaussian (gaussianMap, opacity, x - center, y - center, width, height);
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data[y * swidth + x] = d;
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data[(sheight - y - 1) * swidth + x] = d;
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data[(sheight - y - 1) * swidth + (swidth - x - 1)] = d;
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data[y * swidth + (swidth - x - 1)] = d;
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}
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/*
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* top/bottom
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*/
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x_diff = swidth - (gsize * 2);
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if (x_diff > 0 && ylimit > 0)
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{
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for (y = 0; y < ylimit; y++)
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{
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d = sum_gaussian (gaussianMap, opacity, center, y - center, width, height);
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memset (&data[y * swidth + gsize], d, x_diff);
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memset (&data[(sheight - y - 1) * swidth + gsize], d, x_diff);
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#if 0
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for (x = gsize; x < swidth - gsize; x++)
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{
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data[y * swidth + x] = d;
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data[(sheight - y - 1) * swidth + x] = d;
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}
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#endif
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}
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}
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/*
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* sides
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*/
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for (x = 0; x < xlimit; x++)
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{
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d = sum_gaussian (gaussianMap, opacity, x - center, center, width, height);
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for (y = gsize; y < sheight - gsize; y++)
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{
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data[y * swidth + x] = d;
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data[y * swidth + (swidth - x - 1)] = d;
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}
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}
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/*
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* center
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*/
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d = sum_gaussian (gaussianMap, opacity, center, center, width, height);
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for (y = ylimit; y < sheight - ylimit; y++)
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for (x = xlimit; x < swidth - xlimit; x++)
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data[y * swidth + x] = d;
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return ximage;
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}
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static Picture
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shadow_picture (Display *dpy, double opacity, int width, int height, int *wp, int *hp)
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{
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XImage *shadowImage = make_shadow (dpy, opacity, width, height);
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Pixmap shadowPixmap = XCreatePixmap (dpy, root,
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shadowImage->width,
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shadowImage->height,
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8);
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Picture shadowPicture = XRenderCreatePicture (dpy, shadowPixmap,
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XRenderFindStandardFormat (dpy, PictStandardA8),
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0, 0);
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GC gc = XCreateGC (dpy, shadowPixmap, 0, 0);
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XPutImage (dpy, shadowPixmap, gc, shadowImage, 0, 0, 0, 0,
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shadowImage->width,
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shadowImage->height);
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*wp = shadowImage->width;
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*hp = shadowImage->height;
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XFreeGC (dpy, gc);
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XDestroyImage (shadowImage);
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XFreePixmap (dpy, shadowPixmap);
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return shadowPicture;
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}
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static win *
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find_win (Display *dpy, Window id)
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{
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win *w;
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for (w = list; w; w = w->next)
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if (w->id == id)
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return w;
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return 0;
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}
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static char *backgroundProps[] = {
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"_XROOTPMAP_ID",
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"_XSETROOT_ID",
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0,
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};
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static Picture
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root_tile (Display *dpy)
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{
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Picture picture;
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Atom actual_type;
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Pixmap pixmap;
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int actual_format;
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unsigned long nitems;
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unsigned long bytes_after;
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unsigned char *prop;
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Bool fill;
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XRenderPictureAttributes pa;
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int p;
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pixmap = None;
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for (p = 0; backgroundProps[p]; p++)
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{
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if (XGetWindowProperty (dpy, root, XInternAtom (dpy, backgroundProps[p], False),
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0, 4, False, AnyPropertyType,
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&actual_type, &actual_format, &nitems, &bytes_after, &prop) == Success &&
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actual_type == XInternAtom (dpy, "PIXMAP", False) && actual_format == 32 && nitems == 1)
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{
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memcpy (&pixmap, prop, 4);
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XFree (prop);
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fill = False;
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break;
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}
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}
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if (!pixmap)
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{
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pixmap = XCreatePixmap (dpy, root, 1, 1, DefaultDepth (dpy, scr));
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fill = True;
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}
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pa.repeat = True;
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picture = XRenderCreatePicture (dpy, pixmap,
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XRenderFindVisualFormat (dpy,
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DefaultVisual (dpy, scr)),
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CPRepeat, &pa);
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if (fill)
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{
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XRenderColor c;
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c.red = c.green = c.blue = 0x8080;
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c.alpha = 0xffff;
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XRenderFillRectangle (dpy, PictOpSrc, picture, &c,
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0, 0, 1, 1);
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}
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return picture;
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}
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static void
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paint_root (Display *dpy)
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{
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if (!rootTile)
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rootTile = root_tile (dpy);
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XRenderComposite (dpy, PictOpSrc,
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rootTile, None, rootBuffer,
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0, 0, 0, 0, 0, 0, root_width, root_height);
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}
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static XserverRegion
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win_extents (Display *dpy, win *w)
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{
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XRectangle r;
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r.x = w->a.x;
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r.y = w->a.y;
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r.width = w->a.width + w->a.border_width * 2;
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r.height = w->a.height + w->a.border_width * 2;
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if (w->mode != WINDOW_ARGB)
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{
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XRectangle sr;
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if (!w->shadow)
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{
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double opacity = SHADOW_OPACITY;
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if (w->mode == WINDOW_TRANS)
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opacity = opacity * TRANS_OPACITY;
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w->shadow = shadow_picture (dpy, opacity,
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w->a.width + w->a.border_width * 2,
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w->a.height + w->a.border_width * 2,
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&w->shadow_width, &w->shadow_height);
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w->shadow_dx = SHADOW_OFFSET_X;
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w->shadow_dy = SHADOW_OFFSET_Y;
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}
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sr.x = w->a.x + w->shadow_dx;
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sr.y = w->a.y + w->shadow_dy;
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sr.width = w->shadow_width;
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sr.height = w->shadow_height;
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if (sr.x < r.x)
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{
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r.width = (r.x + r.width) - sr.x;
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r.x = sr.x;
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}
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if (sr.y < r.y)
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{
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r.height = (r.y + r.height) - sr.y;
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r.y = sr.y;
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}
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if (sr.width > r.width)
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r.width = sr.width;
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if (sr.height > r.height)
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r.height = sr.height;
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}
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return XFixesCreateRegion (dpy, &r, 1);
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}
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static XserverRegion
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border_size (Display *dpy, win *w)
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{
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XserverRegion border;
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border = XFixesCreateRegionFromWindow (dpy, w->id, WindowRegionBounding);
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/* translate this */
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XFixesTranslateRegion (dpy, border,
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w->a.x + w->a.border_width,
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w->a.y + w->a.border_width);
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return border;
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}
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static void
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paint_all (Display *dpy, XserverRegion region)
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{
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win *w;
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win *t = 0;
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if (!region)
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{
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XRectangle r;
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r.x = 0;
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r.y = 0;
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r.width = root_width;
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r.height = root_height;
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region = XFixesCreateRegion (dpy, &r, 1);
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}
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#if MONITOR_REPAINT
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rootBuffer = rootPicture;
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#else
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if (!rootBuffer)
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{
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Pixmap rootPixmap = XCreatePixmap (dpy, root, root_width, root_height,
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DefaultDepth (dpy, scr));
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rootBuffer = XRenderCreatePicture (dpy, rootPixmap,
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XRenderFindVisualFormat (dpy,
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DefaultVisual (dpy, scr)),
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0, 0);
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XFreePixmap (dpy, rootPixmap);
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}
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#endif
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XFixesSetPictureClipRegion (dpy, rootPicture, 0, 0, region);
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#if MONITOR_REPAINT
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XRenderComposite (dpy, PictOpSrc, blackPicture, None, rootPicture,
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0, 0, 0, 0, 0, 0, root_width, root_height);
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#endif
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#if DEBUG_REPAINT
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printf ("paint:");
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#endif
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for (w = list; w; w = w->next)
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{
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if (w->a.map_state != IsViewable)
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continue;
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/* never painted, ignore it */
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if (!w->damaged)
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continue;
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if (!w->picture)
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continue;
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#if DEBUG_REPAINT
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printf (" 0x%x", w->id);
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#endif
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if (clipChanged)
|
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{
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if (w->borderSize)
|
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{
|
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XFixesDestroyRegion (dpy, w->borderSize);
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w->borderSize = None;
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}
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if (w->extents)
|
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{
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XFixesDestroyRegion (dpy, w->extents);
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w->extents = None;
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}
|
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if (w->borderClip)
|
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{
|
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XFixesDestroyRegion (dpy, w->borderClip);
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w->borderClip = None;
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}
|
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}
|
|
if (!w->borderSize)
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w->borderSize = border_size (dpy, w);
|
|
if (!w->extents)
|
|
w->extents = win_extents (dpy, w);
|
|
if (w->mode == WINDOW_SOLID)
|
|
{
|
|
XFixesSetPictureClipRegion (dpy, rootBuffer, 0, 0, region);
|
|
XFixesSubtractRegion (dpy, region, region, w->borderSize);
|
|
XRenderComposite (dpy, PictOpSrc, w->picture, None, rootBuffer,
|
|
0, 0, 0, 0,
|
|
w->a.x + w->a.border_width,
|
|
w->a.y + w->a.border_width,
|
|
w->a.width,
|
|
w->a.height);
|
|
}
|
|
if (!w->borderClip)
|
|
{
|
|
w->borderClip = XFixesCreateRegion (dpy, 0, 0);
|
|
XFixesCopyRegion (dpy, w->borderClip, region);
|
|
}
|
|
w->prev_trans = t;
|
|
t = w;
|
|
}
|
|
#if DEBUG_REPAINT
|
|
printf ("\n");
|
|
fflush (stdout);
|
|
#endif
|
|
XFixesSetPictureClipRegion (dpy, rootBuffer, 0, 0, region);
|
|
paint_root (dpy);
|
|
for (w = t; w; w = w->prev_trans)
|
|
{
|
|
XFixesSetPictureClipRegion (dpy, rootBuffer, 0, 0, w->borderClip);
|
|
if (w->shadow)
|
|
{
|
|
XRenderComposite (dpy, PictOpOver, blackPicture, w->shadow, rootBuffer,
|
|
0, 0, 0, 0,
|
|
w->a.x + w->shadow_dx,
|
|
w->a.y + w->shadow_dy,
|
|
w->shadow_width, w->shadow_height);
|
|
}
|
|
if (w->mode == WINDOW_TRANS)
|
|
XRenderComposite (dpy, PictOpOver, w->picture, transPicture, rootBuffer,
|
|
0, 0, 0, 0,
|
|
w->a.x + w->a.border_width,
|
|
w->a.y + w->a.border_width,
|
|
w->a.width,
|
|
w->a.height);
|
|
else if (w->mode == WINDOW_ARGB)
|
|
XRenderComposite (dpy, PictOpOver, w->picture, None, rootBuffer,
|
|
0, 0, 0, 0,
|
|
w->a.x + w->a.border_width,
|
|
w->a.y + w->a.border_width,
|
|
w->a.width,
|
|
w->a.height);
|
|
XFixesDestroyRegion (dpy, w->borderClip);
|
|
w->borderClip = None;
|
|
}
|
|
XFixesDestroyRegion (dpy, region);
|
|
if (rootBuffer != rootPicture)
|
|
{
|
|
XFixesSetPictureClipRegion (dpy, rootBuffer, 0, 0, None);
|
|
XRenderComposite (dpy, PictOpSrc, rootBuffer, None, rootPicture,
|
|
0, 0, 0, 0, 0, 0, root_width, root_height);
|
|
}
|
|
}
|
|
|
|
static void
|
|
add_damage (Display *dpy, XserverRegion damage)
|
|
{
|
|
if (allDamage)
|
|
{
|
|
XFixesUnionRegion (dpy, allDamage, allDamage, damage);
|
|
XFixesDestroyRegion (dpy, damage);
|
|
}
|
|
else
|
|
allDamage = damage;
|
|
}
|
|
|
|
static void
|
|
repair_win (Display *dpy, Window id)
|
|
{
|
|
win *w = find_win (dpy, id);
|
|
XserverRegion parts;
|
|
|
|
if (!w)
|
|
return;
|
|
if (!w->damaged)
|
|
{
|
|
parts = win_extents (dpy, w);
|
|
XDamageSubtract (dpy, w->damage, None, None);
|
|
}
|
|
else
|
|
{
|
|
parts = XFixesCreateRegion (dpy, 0, 0);
|
|
XDamageSubtract (dpy, w->damage, None, parts);
|
|
XFixesTranslateRegion (dpy, parts,
|
|
w->a.x + w->a.border_width,
|
|
w->a.y + w->a.border_width);
|
|
}
|
|
add_damage (dpy, parts);
|
|
w->damaged = 1;
|
|
}
|
|
|
|
static void
|
|
map_win (Display *dpy, Window id, unsigned long sequence)
|
|
{
|
|
win *w = find_win (dpy, id);
|
|
|
|
if (!w)
|
|
return;
|
|
w->a.map_state = IsViewable;
|
|
|
|
/* make sure we know if property was changed */
|
|
XSelectInput(dpy, id, PropertyChangeMask);
|
|
|
|
w->damaged = 0;
|
|
clipChanged = True;
|
|
}
|
|
|
|
static void
|
|
unmap_win (Display *dpy, Window id)
|
|
{
|
|
win *w = find_win (dpy, id);
|
|
|
|
if (!w)
|
|
return;
|
|
w->a.map_state = IsUnmapped;
|
|
w->damaged = 0;
|
|
if (w->extents != None)
|
|
{
|
|
add_damage (dpy, w->extents); /* destroys region */
|
|
w->extents = None;
|
|
}
|
|
|
|
/* don't care about properties anymore */
|
|
XSelectInput(dpy, id, 0);
|
|
clipChanged = True;
|
|
}
|
|
|
|
|
|
|
|
/* Get the translucency prop from window
|
|
not found: -1
|
|
otherwise the value
|
|
|
|
*/
|
|
static int
|
|
get_trans_prop(Display *dpy, win *w)
|
|
{
|
|
Atom actual;
|
|
int format;
|
|
unsigned long n, left;
|
|
|
|
char *data;
|
|
XGetWindowProperty(dpy, w->id, transPropAtom, 0L, 1L, False, intAtom, &actual, &format,
|
|
&n, &left, (unsigned char **) &data);
|
|
if (data != None)
|
|
{
|
|
int i = (int) *data;
|
|
XFree( (void *) data);
|
|
return i;
|
|
}
|
|
return -1;
|
|
|
|
}
|
|
|
|
/* determine mode for window all in one place.
|
|
Future might check for menu flag and other cool things
|
|
*/
|
|
|
|
|
|
static int
|
|
determine_mode(Display *dpy, win *w)
|
|
{
|
|
int mode;
|
|
|
|
/* if trans prop == -1 fall back on previous tests*/
|
|
|
|
int p = get_trans_prop(dpy, w);
|
|
if ( p != -1 )
|
|
{
|
|
if (p > 0)
|
|
{
|
|
/* don't really care about the value as long as > 0 */
|
|
mode = WINDOW_TRANS;
|
|
}
|
|
else
|
|
{
|
|
mode = WINDOW_SOLID;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
else
|
|
{
|
|
XRenderPictFormat *format;
|
|
if (w->a.class == InputOnly)
|
|
{
|
|
format = 0;
|
|
}
|
|
else
|
|
{
|
|
format = XRenderFindVisualFormat (dpy, w->a.visual);
|
|
}
|
|
|
|
|
|
|
|
if (format && format->type == PictTypeDirect && format->direct.alphaMask)
|
|
{
|
|
mode = WINDOW_ARGB;
|
|
}
|
|
else if (w->a.override_redirect)
|
|
{
|
|
/* changed this as a lot of window managers set this for all top
|
|
level windows */
|
|
mode = WINDOW_TRANS;
|
|
}
|
|
else
|
|
{
|
|
mode = WINDOW_SOLID;
|
|
}
|
|
}
|
|
return mode;
|
|
}
|
|
|
|
static void
|
|
add_win (Display *dpy, Window id, Window prev)
|
|
{
|
|
win *new = malloc (sizeof (win));
|
|
win **p;
|
|
XRenderPictureAttributes pa;
|
|
XRenderPictFormat *format;
|
|
|
|
if (!new)
|
|
return;
|
|
if (prev)
|
|
{
|
|
for (p = &list; *p; p = &(*p)->next)
|
|
if ((*p)->id == prev)
|
|
break;
|
|
}
|
|
else
|
|
p = &list;
|
|
new->id = id;
|
|
if (!XGetWindowAttributes (dpy, id, &new->a))
|
|
{
|
|
free (new);
|
|
return;
|
|
}
|
|
new->damage = None;
|
|
new->damaged = 0;
|
|
new->damage = None;
|
|
pa.subwindow_mode = IncludeInferiors;
|
|
if (new->a.class == InputOnly)
|
|
{
|
|
new->picture = 0;
|
|
format = 0;
|
|
new->damage_sequence = 0;
|
|
}
|
|
else
|
|
{
|
|
format = XRenderFindVisualFormat (dpy, new->a.visual);
|
|
new->picture = XRenderCreatePicture (dpy, id,
|
|
format,
|
|
CPSubwindowMode,
|
|
&pa);
|
|
new->damage_sequence = NextRequest (dpy);
|
|
new->damage = XDamageCreate (dpy, id, XDamageReportNonEmpty);
|
|
}
|
|
|
|
new->shadow = None;
|
|
new->shadow_dx = 0;
|
|
new->shadow_dy = 0;
|
|
new->shadow_width = 0;
|
|
new->shadow_height = 0;
|
|
new->borderSize = None;
|
|
new->extents = None;
|
|
|
|
|
|
/* moved mode setting to one place */
|
|
new->mode = determine_mode(dpy, new);
|
|
|
|
new->next = *p;
|
|
*p = new;
|
|
if (new->a.map_state == IsViewable)
|
|
map_win (dpy, id, new->damage_sequence - 1);
|
|
}
|
|
|
|
void
|
|
restack_win (Display *dpy, win *w, Window new_above)
|
|
{
|
|
Window old_above;
|
|
|
|
if (w->next)
|
|
old_above = w->next->id;
|
|
else
|
|
old_above = None;
|
|
if (old_above != new_above)
|
|
{
|
|
win **prev;
|
|
|
|
/* unhook */
|
|
for (prev = &list; *prev; prev = &(*prev)->next)
|
|
if ((*prev) == w)
|
|
break;
|
|
*prev = w->next;
|
|
|
|
/* rehook */
|
|
for (prev = &list; *prev; prev = &(*prev)->next)
|
|
{
|
|
if ((*prev)->id == new_above)
|
|
break;
|
|
}
|
|
w->next = *prev;
|
|
*prev = w;
|
|
}
|
|
}
|
|
|
|
static void
|
|
configure_win (Display *dpy, XConfigureEvent *ce)
|
|
{
|
|
win *w = find_win (dpy, ce->window);
|
|
Window above;
|
|
XserverRegion damage = None;
|
|
|
|
if (!w)
|
|
{
|
|
if (ce->window == root)
|
|
{
|
|
if (rootBuffer)
|
|
{
|
|
XRenderFreePicture (dpy, rootBuffer);
|
|
rootBuffer = None;
|
|
}
|
|
root_width = ce->width;
|
|
root_height = ce->height;
|
|
}
|
|
return;
|
|
}
|
|
if (w->a.map_state == IsViewable)
|
|
{
|
|
damage = XFixesCreateRegion (dpy, 0, 0);
|
|
if (w->extents != None)
|
|
XFixesCopyRegion (dpy, damage, w->extents);
|
|
}
|
|
w->a.x = ce->x;
|
|
w->a.y = ce->y;
|
|
if (w->a.width != ce->width || w->a.height != ce->height)
|
|
if (w->shadow)
|
|
{
|
|
XRenderFreePicture (dpy, w->shadow);
|
|
w->shadow = None;
|
|
}
|
|
w->a.width = ce->width;
|
|
w->a.height = ce->height;
|
|
w->a.border_width = ce->border_width;
|
|
w->a.override_redirect = ce->override_redirect;
|
|
restack_win (dpy, w, ce->above);
|
|
if (damage)
|
|
{
|
|
XserverRegion extents = win_extents (dpy, w);
|
|
XFixesUnionRegion (dpy, damage, damage, extents);
|
|
XFixesDestroyRegion (dpy, extents);
|
|
add_damage (dpy, damage);
|
|
}
|
|
clipChanged = True;
|
|
}
|
|
|
|
static void
|
|
circulate_win (Display *dpy, XCirculateEvent *ce)
|
|
{
|
|
win *w = find_win (dpy, ce->window);
|
|
Window new_above;
|
|
|
|
if (ce->place == PlaceOnTop)
|
|
new_above = list->id;
|
|
else
|
|
new_above = None;
|
|
restack_win (dpy, w, new_above);
|
|
clipChanged = True;
|
|
}
|
|
|
|
static void
|
|
destroy_win (Display *dpy, Window id, Bool gone)
|
|
{
|
|
win **prev, *w;
|
|
|
|
for (prev = &list; (w = *prev); prev = &w->next)
|
|
if (w->id == id)
|
|
{
|
|
if (!gone)
|
|
unmap_win (dpy, id);
|
|
*prev = w->next;
|
|
if (w->picture)
|
|
XRenderFreePicture (dpy, w->picture);
|
|
if (w->damage != None)
|
|
XDamageDestroy (dpy, w->damage);
|
|
free (w);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
static void
|
|
dump_win (win *w)
|
|
{
|
|
printf ("\t%08lx: %d x %d + %d + %d (%d)\n", w->id,
|
|
w->a.width, w->a.height, w->a.x, w->a.y, w->a.border_width);
|
|
}
|
|
|
|
|
|
static void
|
|
dump_wins (void)
|
|
{
|
|
win *w;
|
|
|
|
printf ("windows:\n");
|
|
for (w = list; w; w = w->next)
|
|
dump_win (w);
|
|
}
|
|
*/
|
|
|
|
static void
|
|
damage_win (Display *dpy, XDamageNotifyEvent *de)
|
|
{
|
|
repair_win (dpy, de->drawable);
|
|
}
|
|
|
|
static int
|
|
error (Display *dpy, XErrorEvent *ev)
|
|
{
|
|
printf ("error %d request %d minor %d\n",
|
|
ev->error_code, ev->request_code, ev->minor_code);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
expose_root (Display *dpy, Window root, XRectangle *rects, int nrects)
|
|
{
|
|
XserverRegion region = XFixesCreateRegion (dpy, rects, nrects);
|
|
|
|
add_damage (dpy, region);
|
|
}
|
|
|
|
|
|
static int
|
|
ev_serial (XEvent *ev)
|
|
{
|
|
if (ev->type & 0x7f != KeymapNotify)
|
|
return ev->xany.serial;
|
|
return NextRequest (ev->xany.display);
|
|
}
|
|
|
|
int damage_event, damage_error;
|
|
|
|
static char *
|
|
ev_name (XEvent *ev)
|
|
{
|
|
static char buf[128];
|
|
switch (ev->type & 0x7f) {
|
|
case Expose:
|
|
return "Expose";
|
|
case MapNotify:
|
|
return "Map";
|
|
case UnmapNotify:
|
|
return "Unmap";
|
|
case ReparentNotify:
|
|
return "Reparent";
|
|
case CirculateNotify:
|
|
return "Circulate";
|
|
default:
|
|
if (ev->type == damage_event + XDamageNotify)
|
|
return "Damage";
|
|
sprintf (buf, "Event %d", ev->type);
|
|
return buf;
|
|
}
|
|
}
|
|
|
|
static Window
|
|
ev_window (XEvent *ev)
|
|
{
|
|
switch (ev->type) {
|
|
case Expose:
|
|
return ev->xexpose.window;
|
|
case MapNotify:
|
|
return ev->xmap.window;
|
|
case UnmapNotify:
|
|
return ev->xunmap.window;
|
|
case ReparentNotify:
|
|
return ev->xreparent.window;
|
|
case CirculateNotify:
|
|
return ev->xcirculate.window;
|
|
default:
|
|
if (ev->type == damage_event + XDamageNotify)
|
|
return ((XDamageNotifyEvent *) ev)->drawable;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
int
|
|
main (int argc, char **argv)
|
|
{
|
|
XEvent ev;
|
|
int event_base, error_base;
|
|
Window root_return, parent_return;
|
|
Window *children;
|
|
Pixmap transPixmap;
|
|
Pixmap blackPixmap;
|
|
unsigned int nchildren;
|
|
int i;
|
|
int xfixes_event, xfixes_error;
|
|
XRenderPictureAttributes pa;
|
|
XRenderColor c;
|
|
XRectangle *expose_rects = 0;
|
|
int size_expose = 0;
|
|
int n_expose = 0;
|
|
struct pollfd ufd;
|
|
int n;
|
|
int last_update;
|
|
int now;
|
|
int p;
|
|
|
|
dpy = XOpenDisplay (0);
|
|
if (!dpy)
|
|
{
|
|
fprintf (stderr, "Can't open display\n");
|
|
exit (1);
|
|
}
|
|
XSetErrorHandler (error);
|
|
#if 0
|
|
XSynchronize (dpy, 1);
|
|
#endif
|
|
scr = DefaultScreen (dpy);
|
|
root = RootWindow (dpy, scr);
|
|
|
|
/* get atoms */
|
|
transPropAtom = XInternAtom(dpy, TRANS_PROP, False);
|
|
intAtom = XInternAtom(dpy, "INTEGER", True);
|
|
|
|
pa.subwindow_mode = IncludeInferiors;
|
|
|
|
gaussianMap = make_gaussian_map(dpy, SHADOW_RADIUS);
|
|
|
|
transPixmap = XCreatePixmap (dpy, root, 1, 1, 8);
|
|
pa.repeat = True;
|
|
transPicture = XRenderCreatePicture (dpy, transPixmap,
|
|
XRenderFindStandardFormat (dpy, PictStandardA8),
|
|
CPRepeat,
|
|
&pa);
|
|
c.red = c.green = c.blue = 0;
|
|
c.alpha = 0xc0c0;
|
|
XRenderFillRectangle (dpy, PictOpSrc, transPicture, &c, 0, 0, 1, 1);
|
|
|
|
root_width = DisplayWidth (dpy, scr);
|
|
root_height = DisplayHeight (dpy, scr);
|
|
|
|
rootPicture = XRenderCreatePicture (dpy, root,
|
|
XRenderFindVisualFormat (dpy,
|
|
DefaultVisual (dpy, scr)),
|
|
CPSubwindowMode,
|
|
&pa);
|
|
blackPixmap = XCreatePixmap (dpy, root, 1, 1, 32);
|
|
pa.repeat = True;
|
|
blackPicture = XRenderCreatePicture (dpy, blackPixmap,
|
|
XRenderFindStandardFormat (dpy, PictStandardARGB32),
|
|
CPRepeat,
|
|
&pa);
|
|
c.red = c.green = c.blue = 0;
|
|
c.alpha = 0xffff;
|
|
XRenderFillRectangle (dpy, PictOpSrc, blackPicture, &c, 0, 0, 1, 1);
|
|
if (!XCompositeQueryExtension (dpy, &event_base, &error_base))
|
|
{
|
|
fprintf (stderr, "No composite extension\n");
|
|
exit (1);
|
|
}
|
|
if (!XDamageQueryExtension (dpy, &damage_event, &damage_error))
|
|
{
|
|
fprintf (stderr, "No damage extension\n");
|
|
exit (1);
|
|
}
|
|
if (!XFixesQueryExtension (dpy, &xfixes_event, &xfixes_error))
|
|
{
|
|
fprintf (stderr, "No XFixes extension\n");
|
|
exit (1);
|
|
}
|
|
allDamage = None;
|
|
clipChanged = True;
|
|
XGrabServer (dpy);
|
|
XCompositeRedirectSubwindows (dpy, root, CompositeRedirectManual);
|
|
XSelectInput (dpy, root,
|
|
SubstructureNotifyMask|
|
|
ExposureMask|
|
|
StructureNotifyMask|
|
|
PropertyChangeMask);
|
|
XQueryTree (dpy, root, &root_return, &parent_return, &children, &nchildren);
|
|
for (i = 0; i < nchildren; i++)
|
|
add_win (dpy, children[i], i ? children[i-1] : None);
|
|
XFree (children);
|
|
XUngrabServer (dpy);
|
|
paint_all (dpy, None);
|
|
for (;;)
|
|
{
|
|
/* dump_wins (); */
|
|
do {
|
|
XNextEvent (dpy, &ev);
|
|
#if DEBUG_EVENTS
|
|
printf ("event %10.10s serial 0x%08x window 0x%08x\n",
|
|
ev_name(&ev), ev_serial (&ev), ev_window (&ev));
|
|
#endif
|
|
switch (ev.type) {
|
|
case CreateNotify:
|
|
add_win (dpy, ev.xcreatewindow.window, 0);
|
|
break;
|
|
case ConfigureNotify:
|
|
configure_win (dpy, &ev.xconfigure);
|
|
break;
|
|
case DestroyNotify:
|
|
destroy_win (dpy, ev.xdestroywindow.window, True);
|
|
break;
|
|
case MapNotify:
|
|
map_win (dpy, ev.xmap.window, ev.xmap.serial);
|
|
break;
|
|
case UnmapNotify:
|
|
unmap_win (dpy, ev.xunmap.window);
|
|
break;
|
|
case ReparentNotify:
|
|
if (ev.xreparent.parent == root)
|
|
add_win (dpy, ev.xreparent.window, 0);
|
|
else
|
|
destroy_win (dpy, ev.xreparent.window, False);
|
|
break;
|
|
case CirculateNotify:
|
|
circulate_win (dpy, &ev.xcirculate);
|
|
break;
|
|
case Expose:
|
|
if (ev.xexpose.window == root)
|
|
{
|
|
int more = ev.xexpose.count + 1;
|
|
if (n_expose == size_expose)
|
|
{
|
|
if (expose_rects)
|
|
{
|
|
expose_rects = realloc (expose_rects,
|
|
(size_expose + more) *
|
|
sizeof (XRectangle));
|
|
size_expose += more;
|
|
}
|
|
else
|
|
{
|
|
expose_rects = malloc (more * sizeof (XRectangle));
|
|
size_expose = more;
|
|
}
|
|
}
|
|
expose_rects[n_expose].x = ev.xexpose.x;
|
|
expose_rects[n_expose].y = ev.xexpose.y;
|
|
expose_rects[n_expose].width = ev.xexpose.width;
|
|
expose_rects[n_expose].height = ev.xexpose.height;
|
|
n_expose++;
|
|
if (ev.xexpose.count == 0)
|
|
{
|
|
expose_root (dpy, root, expose_rects, n_expose);
|
|
n_expose = 0;
|
|
}
|
|
}
|
|
break;
|
|
case PropertyNotify:
|
|
for (p = 0; backgroundProps[p]; p++)
|
|
{
|
|
if (ev.xproperty.atom == XInternAtom (dpy, backgroundProps[p], False))
|
|
{
|
|
if (rootTile)
|
|
{
|
|
XClearArea (dpy, root, 0, 0, 0, 0, True);
|
|
XRenderFreePicture (dpy, rootTile);
|
|
rootTile = None;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
/* check if Trans property was changed */
|
|
if (ev.xproperty.atom == transPropAtom)
|
|
{
|
|
/* reset mode and redraw window */
|
|
win * w = find_win(dpy, ev.xproperty.window);
|
|
if (w)
|
|
{
|
|
w->mode = determine_mode(dpy, w);
|
|
if (w->extents)
|
|
{
|
|
XserverRegion damage;
|
|
damage = XFixesCreateRegion (dpy, 0, 0);
|
|
XFixesCopyRegion (dpy, damage, w->extents);
|
|
add_damage (dpy, damage);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
if (ev.type == damage_event + XDamageNotify)
|
|
damage_win (dpy, (XDamageNotifyEvent *) &ev);
|
|
break;
|
|
}
|
|
} while (QLength (dpy));
|
|
if (allDamage)
|
|
{
|
|
static int paint;
|
|
paint_all (dpy, allDamage);
|
|
paint++;
|
|
XSync (dpy, False);
|
|
allDamage = None;
|
|
clipChanged = False;
|
|
}
|
|
}
|
|
}
|