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Merge branch 'frame_opacity'

This commit is contained in:
Christopher Jeffrey 2011-11-05 22:59:20 -05:00
parent 4ef58758c5 cde4d0c75f
commit 69f003348b
2 changed files with 157 additions and 33 deletions
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12
README.md
View File

@ -12,12 +12,17 @@ partially doing this out of a desire to learn Xlib.
## Changes from xcompmgr:
* __inactive window transparency__ (specified with `-i`)
* __titlebar/frame transparency__ (specified with `-e`)
* shadows are now enabled for argb windows, e.g. terminals with transparency
* removed serverside shadows (and simple compositing) to clean the code,
the only option that remains is clientside shadows
* titlebar transparency (and possibly border transparency) is on the way
* menu transparency (thanks to Dana)
The above features give compton a feature set similar to the xfce compositor.
Compton has only been tested with openbox so far, but frame transparency
should work with any window manager that properly sets `_NET_FRAME_EXTENTS`.
## Fixes from the original xcompmgr:
* fixed a segfault when opening certain window types
@ -64,7 +69,8 @@ The above will produce a single binary.
## Usage
``` bash
$ xcompmgr -cC -t -5 -l -5 -r 5 -o 0.5 -fF -I 0.065 -O 0.065 -D 6 -m 0.8 -i &
$ xcompmgr -cC -t -5 -l -5 -r 5 -o 0.4 \
-fF -I 0.065 -O 0.065 -D 6 -m 0.8 -i 0.6 -e 0.6 &
$ xcompmgr -cC -t -5 -l -5 -r 5 -o 0.5 -i &
$ xcompmgr -cC -t -5 -l -5 -r 5 -o 0.4 -i 0.6 -e 0.6 &
```

174
xcompmgr.c
View File

@ -88,6 +88,7 @@ typedef struct _win {
Damage damage;
Picture picture;
Picture alpha_pict;
Picture alpha_border_pict;
Picture shadow_pict;
XserverRegion border_size;
XserverRegion extents;
@ -100,6 +101,10 @@ typedef struct _win {
wintype window_type;
unsigned long damage_sequence; /* sequence when damage was created */
Bool destroyed;
unsigned int left_width;
unsigned int right_width;
unsigned int top_width;
unsigned int bottom_width;
Bool need_configure;
XConfigureEvent queue_configure;
@ -190,6 +195,7 @@ int fade_time = 0;
Bool fade_trans = False;
double inactive_opacity = 0;
double frame_opacity = 0;
#define INACTIVE_OPACITY \
(unsigned long)((double)inactive_opacity * OPAQUE)
@ -937,6 +943,78 @@ border_size(Display *dpy, win *w) {
return border;
}
static Window
find_client_win(Display *dpy, Window win) {
Atom WM_STATE = XInternAtom(dpy, "WM_STATE", False);
Window root, parent;
Window *children;
unsigned int nchildren;
unsigned int i;
Atom type = None;
int format;
unsigned long nitems, after;
unsigned char *data;
Window client = 0;
XGetWindowProperty(
dpy, win, WM_STATE, 0, 0, False,
AnyPropertyType, &type, &format, &nitems,
&after, &data);
if (type) return win;
if (!XQueryTree(dpy, win, &root,
&parent, &children, &nchildren)) {
return 0;
}
for (i = 0; i < nchildren; i++) {
client = find_client_win(dpy, children[i]);
if (client) break;
}
if (children) XFree((char *)children);
return client;
}
static void
get_frame_extents(Display *dpy, Window w,
int *left, int *right, int *top, int *bottom) {
long *extents;
Atom type;
int format;
unsigned long nitems, after;
unsigned char *data = NULL;
int result;
*left = 0;
*right = 0;
*top = 0;
*bottom = 0;
w = find_client_win(dpy, w);
if (!w) return;
result = XGetWindowProperty(
dpy, w, XInternAtom(dpy, "_NET_FRAME_EXTENTS", False),
0L, 4L, False, AnyPropertyType,
&type, &format, &nitems, &after,
(unsigned char **)&data);
if (result == Success) {
if (nitems == 4 && after == 0) {
extents = (long *)data;
*left = (int) *extents;
*right = (int) *(extents + 1);
*top = (int) *(extents + 2);
*bottom = (int) *(extents + 3);
}
XFree(data);
}
}
static void
paint_all(Display *dpy, XserverRegion region) {
win *w;
@ -1042,7 +1120,8 @@ paint_all(Display *dpy, XserverRegion region) {
w->extents = win_extents(dpy, w);
}
if (w->mode == WINDOW_SOLID) {
if (!(frame_opacity && w->top_width)
&& w->mode == WINDOW_SOLID) {
int x, y, wid, hei;
#if HAS_NAME_WINDOW_PIXMAP
@ -1099,12 +1178,19 @@ paint_all(Display *dpy, XserverRegion region) {
w->shadow_width, w->shadow_height);
}
if (w->opacity != OPAQUE && !w->alpha_pict) {
if (((frame_opacity && w->top_width) || w->opacity != OPAQUE)
&& !w->alpha_pict) {
w->alpha_pict = solid_picture(
dpy, False, (double)w->opacity / OPAQUE, 0, 0, 0);
}
if (w->mode == WINDOW_TRANS) {
if (((frame_opacity && w->top_width) || w->opacity != OPAQUE)
&& !w->alpha_border_pict) {
w->alpha_border_pict = solid_picture(
dpy, False, frame_opacity, 0, 0, 0);
}
if ((frame_opacity && w->top_width) || w->mode != WINDOW_SOLID) {
int x, y, wid, hei;
#if HAS_NAME_WINDOW_PIXMAP
@ -1121,30 +1207,42 @@ paint_all(Display *dpy, XserverRegion region) {
set_ignore(dpy, NextRequest(dpy));
if (!frame_opacity || !w->top_width) {
XRenderComposite(
dpy, PictOpOver, w->picture, w->alpha_pict,
root_buffer, 0, 0, 0, 0, x, y, wid, hei);
} else if (w->mode == WINDOW_ARGB) {
int x, y, wid, hei;
#if HAS_NAME_WINDOW_PIXMAP
x = w->a.x;
y = w->a.y;
wid = w->a.width + w->a.border_width * 2;
hei = w->a.height + w->a.border_width * 2;
#else
x = w->a.x + w->a.border_width;
y = w->a.y + w->a.border_width;
wid = w->a.width;
hei = w->a.height;
#endif
set_ignore(dpy, NextRequest(dpy));
} else {
/* TODO - clean me */
unsigned int t = w->top_width;
unsigned int l = w->left_width;
unsigned int b = w->bottom_width;
unsigned int r = w->right_width;
/* top */
XRenderComposite(
dpy, PictOpOver, w->picture, w->alpha_pict,
root_buffer, 0, 0, 0, 0,
x, y, wid, hei);
dpy, PictOpOver, w->picture, w->alpha_border_pict, root_buffer,
0, 0, 0, 0, x, y, wid, t);
/* left */
XRenderComposite(
dpy, PictOpOver, w->picture, w->alpha_border_pict, root_buffer,
0, t, 0, t, x, y + t, l, hei - t);
/* bottom */
XRenderComposite(
dpy, PictOpOver, w->picture, w->alpha_border_pict, root_buffer,
l, hei - b, l, hei - b, x + l, y + hei - b, wid - l - r, b);
/* right */
XRenderComposite(
dpy, PictOpOver, w->picture, w->alpha_border_pict, root_buffer,
wid - r, t, wid - r, t, x + wid - r, y + t, r, hei - t);
/* body */
XRenderComposite(
dpy, PictOpOver, w->picture, w->alpha_pict, root_buffer,
l, t, l, t, x + l, y + t, wid - l - r, hei - t - b);
}
}
XFixesDestroyRegion(dpy, w->border_clip);
@ -1500,6 +1598,11 @@ determine_mode(Display *dpy, win *w) {
w->alpha_pict = None;
}
if (w->alpha_border_pict) {
XRenderFreePicture(dpy, w->alpha_border_pict);
w->alpha_border_pict = None;
}
if (w->shadow_pict) {
XRenderFreePicture(dpy, w->shadow_pict);
w->shadow_pict = None;
@ -1573,6 +1676,7 @@ add_win(Display *dpy, Window id, Window prev) {
}
new->alpha_pict = None;
new->alpha_border_pict = None;
new->shadow_pict = None;
new->border_size = None;
new->extents = None;
@ -1591,6 +1695,13 @@ add_win(Display *dpy, Window id, Window prev) {
new->next = *p;
*p = new;
new->left_width = 0;
new->right_width = 0;
new->top_width = 0;
new->bottom_width = 0;
get_frame_extents(dpy, id,
&new->left_width, &new->right_width, &new->top_width, &new->bottom_width);
if (new->a.map_state == IsViewable) {
new->window_type = determine_wintype(dpy, id, id);
if (inactive_opacity && new->window_type == WINTYPE_NORMAL) {
@ -1734,6 +1845,11 @@ finish_destroy_win(Display *dpy, Window id) {
w->alpha_pict = None;
}
if (w->alpha_border_pict) {
XRenderFreePicture(dpy, w->alpha_border_pict);
w->alpha_border_pict = None;
}
if (w->shadow_pict) {
XRenderFreePicture(dpy, w->shadow_pict);
w->shadow_pict = None;
@ -2032,6 +2148,9 @@ usage(char *program) {
fprintf(stderr,
" -i opacity\n "
"Opacity of inactive windows. (0.1 - 1.0)\n");
fprintf(stderr,
" -e opacity\n "
"Opacity of window titlebars and borders. (0.1 - 1.0)\n");
fprintf(stderr,
" -S\n "
"Enable synchronous operation (for debugging).\n");
@ -2100,7 +2219,7 @@ main(int argc, char **argv) {
/* don't bother to draw a shadow for the desktop */
win_type_shadow[WINTYPE_DESKTOP] = False;
while ((o = getopt(argc, argv, "D:I:O:d:r:o:m:l:t:i:scnfFCaS")) != -1) {
while ((o = getopt(argc, argv, "D:I:O:d:r:o:m:l:t:i:e:scnfFCaS")) != -1) {
switch (o) {
case 'd':
display = optarg;
@ -2155,11 +2274,9 @@ main(int argc, char **argv) {
break;
case 'i':
inactive_opacity = (double)atof(optarg);
if (inactive_opacity < 0.1
|| inactive_opacity > 1.0) {
fprintf(stderr, "Opacity must be 0.1 - 1.0.\n");
exit(1);
}
break;
case 'e':
frame_opacity = (double)atof(optarg);
break;
case 'c':
case 'n':
@ -2339,6 +2456,7 @@ main(int argc, char **argv) {
break;
}
case CreateNotify:
//if (ev.xcreatewindow.override_redirect) break;
add_win(dpy, ev.xcreatewindow.window, 0);
break;
case ConfigureNotify: