Merge branch 'frame_opacity'
This commit is contained in:
commit
69f003348b
12
README.md
12
README.md
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@ -12,12 +12,17 @@ partially doing this out of a desire to learn Xlib.
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## Changes from xcompmgr:
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* __inactive window transparency__ (specified with `-i`)
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* __titlebar/frame transparency__ (specified with `-e`)
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* shadows are now enabled for argb windows, e.g. terminals with transparency
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* removed serverside shadows (and simple compositing) to clean the code,
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the only option that remains is clientside shadows
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* titlebar transparency (and possibly border transparency) is on the way
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* menu transparency (thanks to Dana)
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The above features give compton a feature set similar to the xfce compositor.
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Compton has only been tested with openbox so far, but frame transparency
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should work with any window manager that properly sets `_NET_FRAME_EXTENTS`.
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## Fixes from the original xcompmgr:
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* fixed a segfault when opening certain window types
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@ -64,7 +69,8 @@ The above will produce a single binary.
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## Usage
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``` bash
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$ xcompmgr -cC -t -5 -l -5 -r 5 -o 0.5 -fF -I 0.065 -O 0.065 -D 6 -m 0.8 -i &
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$ xcompmgr -cC -t -5 -l -5 -r 5 -o 0.4 \
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-fF -I 0.065 -O 0.065 -D 6 -m 0.8 -i 0.6 -e 0.6 &
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$ xcompmgr -cC -t -5 -l -5 -r 5 -o 0.5 -i &
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$ xcompmgr -cC -t -5 -l -5 -r 5 -o 0.4 -i 0.6 -e 0.6 &
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```
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174
xcompmgr.c
174
xcompmgr.c
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@ -88,6 +88,7 @@ typedef struct _win {
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Damage damage;
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Picture picture;
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Picture alpha_pict;
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Picture alpha_border_pict;
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Picture shadow_pict;
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XserverRegion border_size;
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XserverRegion extents;
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@ -100,6 +101,10 @@ typedef struct _win {
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wintype window_type;
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unsigned long damage_sequence; /* sequence when damage was created */
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Bool destroyed;
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unsigned int left_width;
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unsigned int right_width;
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unsigned int top_width;
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unsigned int bottom_width;
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Bool need_configure;
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XConfigureEvent queue_configure;
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@ -190,6 +195,7 @@ int fade_time = 0;
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Bool fade_trans = False;
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double inactive_opacity = 0;
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double frame_opacity = 0;
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#define INACTIVE_OPACITY \
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(unsigned long)((double)inactive_opacity * OPAQUE)
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@ -937,6 +943,78 @@ border_size(Display *dpy, win *w) {
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return border;
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}
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static Window
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find_client_win(Display *dpy, Window win) {
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Atom WM_STATE = XInternAtom(dpy, "WM_STATE", False);
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Window root, parent;
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Window *children;
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unsigned int nchildren;
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unsigned int i;
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Atom type = None;
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int format;
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unsigned long nitems, after;
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unsigned char *data;
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Window client = 0;
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XGetWindowProperty(
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dpy, win, WM_STATE, 0, 0, False,
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AnyPropertyType, &type, &format, &nitems,
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&after, &data);
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if (type) return win;
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if (!XQueryTree(dpy, win, &root,
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&parent, &children, &nchildren)) {
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return 0;
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}
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for (i = 0; i < nchildren; i++) {
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client = find_client_win(dpy, children[i]);
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if (client) break;
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}
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if (children) XFree((char *)children);
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return client;
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}
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static void
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get_frame_extents(Display *dpy, Window w,
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int *left, int *right, int *top, int *bottom) {
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long *extents;
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Atom type;
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int format;
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unsigned long nitems, after;
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unsigned char *data = NULL;
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int result;
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*left = 0;
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*right = 0;
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*top = 0;
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*bottom = 0;
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w = find_client_win(dpy, w);
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if (!w) return;
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result = XGetWindowProperty(
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dpy, w, XInternAtom(dpy, "_NET_FRAME_EXTENTS", False),
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0L, 4L, False, AnyPropertyType,
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&type, &format, &nitems, &after,
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(unsigned char **)&data);
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if (result == Success) {
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if (nitems == 4 && after == 0) {
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extents = (long *)data;
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*left = (int) *extents;
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*right = (int) *(extents + 1);
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*top = (int) *(extents + 2);
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*bottom = (int) *(extents + 3);
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}
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XFree(data);
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}
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}
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static void
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paint_all(Display *dpy, XserverRegion region) {
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win *w;
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@ -1042,7 +1120,8 @@ paint_all(Display *dpy, XserverRegion region) {
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w->extents = win_extents(dpy, w);
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}
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if (w->mode == WINDOW_SOLID) {
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if (!(frame_opacity && w->top_width)
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&& w->mode == WINDOW_SOLID) {
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int x, y, wid, hei;
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#if HAS_NAME_WINDOW_PIXMAP
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@ -1099,12 +1178,19 @@ paint_all(Display *dpy, XserverRegion region) {
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w->shadow_width, w->shadow_height);
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}
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if (w->opacity != OPAQUE && !w->alpha_pict) {
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if (((frame_opacity && w->top_width) || w->opacity != OPAQUE)
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&& !w->alpha_pict) {
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w->alpha_pict = solid_picture(
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dpy, False, (double)w->opacity / OPAQUE, 0, 0, 0);
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}
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if (w->mode == WINDOW_TRANS) {
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if (((frame_opacity && w->top_width) || w->opacity != OPAQUE)
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&& !w->alpha_border_pict) {
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w->alpha_border_pict = solid_picture(
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dpy, False, frame_opacity, 0, 0, 0);
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}
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if ((frame_opacity && w->top_width) || w->mode != WINDOW_SOLID) {
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int x, y, wid, hei;
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#if HAS_NAME_WINDOW_PIXMAP
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@ -1121,30 +1207,42 @@ paint_all(Display *dpy, XserverRegion region) {
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set_ignore(dpy, NextRequest(dpy));
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if (!frame_opacity || !w->top_width) {
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XRenderComposite(
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dpy, PictOpOver, w->picture, w->alpha_pict,
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root_buffer, 0, 0, 0, 0, x, y, wid, hei);
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} else if (w->mode == WINDOW_ARGB) {
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int x, y, wid, hei;
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#if HAS_NAME_WINDOW_PIXMAP
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x = w->a.x;
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y = w->a.y;
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wid = w->a.width + w->a.border_width * 2;
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hei = w->a.height + w->a.border_width * 2;
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#else
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x = w->a.x + w->a.border_width;
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y = w->a.y + w->a.border_width;
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wid = w->a.width;
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hei = w->a.height;
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#endif
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set_ignore(dpy, NextRequest(dpy));
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} else {
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/* TODO - clean me */
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unsigned int t = w->top_width;
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unsigned int l = w->left_width;
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unsigned int b = w->bottom_width;
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unsigned int r = w->right_width;
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/* top */
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XRenderComposite(
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dpy, PictOpOver, w->picture, w->alpha_pict,
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root_buffer, 0, 0, 0, 0,
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x, y, wid, hei);
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dpy, PictOpOver, w->picture, w->alpha_border_pict, root_buffer,
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0, 0, 0, 0, x, y, wid, t);
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/* left */
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XRenderComposite(
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dpy, PictOpOver, w->picture, w->alpha_border_pict, root_buffer,
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0, t, 0, t, x, y + t, l, hei - t);
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/* bottom */
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XRenderComposite(
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dpy, PictOpOver, w->picture, w->alpha_border_pict, root_buffer,
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l, hei - b, l, hei - b, x + l, y + hei - b, wid - l - r, b);
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/* right */
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XRenderComposite(
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dpy, PictOpOver, w->picture, w->alpha_border_pict, root_buffer,
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wid - r, t, wid - r, t, x + wid - r, y + t, r, hei - t);
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/* body */
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XRenderComposite(
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dpy, PictOpOver, w->picture, w->alpha_pict, root_buffer,
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l, t, l, t, x + l, y + t, wid - l - r, hei - t - b);
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}
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}
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XFixesDestroyRegion(dpy, w->border_clip);
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@ -1500,6 +1598,11 @@ determine_mode(Display *dpy, win *w) {
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w->alpha_pict = None;
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}
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if (w->alpha_border_pict) {
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XRenderFreePicture(dpy, w->alpha_border_pict);
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w->alpha_border_pict = None;
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}
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if (w->shadow_pict) {
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XRenderFreePicture(dpy, w->shadow_pict);
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w->shadow_pict = None;
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@ -1573,6 +1676,7 @@ add_win(Display *dpy, Window id, Window prev) {
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}
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new->alpha_pict = None;
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new->alpha_border_pict = None;
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new->shadow_pict = None;
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new->border_size = None;
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new->extents = None;
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@ -1591,6 +1695,13 @@ add_win(Display *dpy, Window id, Window prev) {
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new->next = *p;
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*p = new;
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new->left_width = 0;
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new->right_width = 0;
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new->top_width = 0;
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new->bottom_width = 0;
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get_frame_extents(dpy, id,
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&new->left_width, &new->right_width, &new->top_width, &new->bottom_width);
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if (new->a.map_state == IsViewable) {
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new->window_type = determine_wintype(dpy, id, id);
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if (inactive_opacity && new->window_type == WINTYPE_NORMAL) {
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@ -1734,6 +1845,11 @@ finish_destroy_win(Display *dpy, Window id) {
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w->alpha_pict = None;
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}
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if (w->alpha_border_pict) {
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XRenderFreePicture(dpy, w->alpha_border_pict);
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w->alpha_border_pict = None;
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}
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if (w->shadow_pict) {
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XRenderFreePicture(dpy, w->shadow_pict);
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w->shadow_pict = None;
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@ -2032,6 +2148,9 @@ usage(char *program) {
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fprintf(stderr,
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" -i opacity\n "
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"Opacity of inactive windows. (0.1 - 1.0)\n");
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fprintf(stderr,
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" -e opacity\n "
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"Opacity of window titlebars and borders. (0.1 - 1.0)\n");
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fprintf(stderr,
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" -S\n "
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"Enable synchronous operation (for debugging).\n");
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@ -2100,7 +2219,7 @@ main(int argc, char **argv) {
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/* don't bother to draw a shadow for the desktop */
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win_type_shadow[WINTYPE_DESKTOP] = False;
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while ((o = getopt(argc, argv, "D:I:O:d:r:o:m:l:t:i:scnfFCaS")) != -1) {
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while ((o = getopt(argc, argv, "D:I:O:d:r:o:m:l:t:i:e:scnfFCaS")) != -1) {
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switch (o) {
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case 'd':
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display = optarg;
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@ -2155,11 +2274,9 @@ main(int argc, char **argv) {
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break;
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case 'i':
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inactive_opacity = (double)atof(optarg);
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if (inactive_opacity < 0.1
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|| inactive_opacity > 1.0) {
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fprintf(stderr, "Opacity must be 0.1 - 1.0.\n");
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exit(1);
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}
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break;
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case 'e':
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frame_opacity = (double)atof(optarg);
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break;
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case 'c':
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case 'n':
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@ -2339,6 +2456,7 @@ main(int argc, char **argv) {
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break;
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}
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case CreateNotify:
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//if (ev.xcreatewindow.override_redirect) break;
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add_win(dpy, ev.xcreatewindow.window, 0);
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break;
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case ConfigureNotify:
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