Commit e6888431 authored by Kate Hart's avatar Kate Hart
Browse files

Add windowid option to draw to an existing window 

This lets `feh` draw the background pixmap of an existing window,
opening the door for use with tools like `xscreensaver` or `xsecurelock`
parent 5c59089f

man/feh.pre

+5 −0
Original line number Diff line number Diff line
@@ -896,6 +896,11 @@ comes before 
Note that this option only has an effect when a sort mode is set using

.Cm --sort .

.

.It Cm --windowid Ar windowid

.

Draw to an existing X11 window by its ID

.Ar windowid .

.

.It Cm --xinerama-index Ar screen

.

.Pq optional feature, $MAN_XINERAMA$ in this build

src/help.raw

+1 −0
Original line number Diff line number Diff line
@@ -100,6 +100,7 @@ OPTIONS 
     --scroll-step COUNT   scroll COUNT pixels when movement key is pressed

     --cache-size NUM      imlib cache size in mebibytes (0 .. 2048)

     --auto-reload         automatically reload shown image if file was changed

     --windowid            Draw to an existing X11 window by its ID



MONTAGE MODE OPTIONS

 -X, --ignore-aspect       Set thumbnail to specified width/height without

src/options.c

+4 −0
Original line number Diff line number Diff line
@@ -433,6 +433,7 @@ static void feh_parse_option_array(int argc, char **argv, int finalrun) 
#endif

		{"class"         , 1, 0, 249},

		{"no-conversion-cache", 0, 0, 250},

		{"windowid", 1, 0, 251},

		{0, 0, 0, 0}

	};

	int optch = 0, cmdx = 0;
@@ -833,6 +834,9 @@ static void feh_parse_option_array(int argc, char **argv, int finalrun) 
		case 250:

			opt.use_conversion_cache = 0;

			break;

		case 251:

			opt.x11_windowid = atoi(optarg);

			break;

		default:

			break;

		}

src/options.h

+1 −0
Original line number Diff line number Diff line
@@ -130,6 +130,7 @@ struct __fehoptions { 
	unsigned char adjust_reload;

	int xinerama_index;

	char *x11_class;

	unsigned int *x11_windowid;



	/* signed in case someone wants to invert scrolling real quick */

	int scroll_step;

src/winwidget.c

+26 −5
Original line number Diff line number Diff line
@@ -143,6 +143,7 @@ winwidget winwidget_create_from_file(gib_list * list, char type) 


void winwidget_create_window(winwidget ret, int w, int h)

{

	XWindowAttributes window_attr;

	XSetWindowAttributes attr;

	XEvent ev;

	XClassHint *xch;
@@ -249,11 +250,31 @@ void winwidget_create_window(winwidget ret, int w, int h) 
		}

	}



	if (opt.x11_windowid == 0) {

		ret->win =

		  XCreateWindow(disp, DefaultRootWindow(disp), x, y, w, h, 0,

		                depth, InputOutput, vis,

		                CWOverrideRedirect | CWSaveUnder | CWBackingStore

			  | CWColormap | CWBackPixel | CWBorderPixel | CWEventMask, &attr);

		                | CWColormap | CWBackPixel | CWBorderPixel | CWEventMask,

		                &attr);

	} else {

		/* x11_windowid is a pointer to the window */

		ret->win = (Window) opt.x11_windowid;



		/* set our attributes on the window */

		XChangeWindowAttributes(disp, ret->win,

                            CWOverrideRedirect | CWSaveUnder | CWBackingStore

                            | CWColormap | CWBackPixel | CWBorderPixel

                            | CWEventMask, &attr);



		/* determine the size and visibility of the window */

		XGetWindowAttributes(disp, ret->win, &window_attr);

		ret->visible = (window_attr.map_state == IsViewable);

		ret->x = window_attr.x;

		ret->y = window_attr.y;

		ret->w = window_attr.width;

		ret->h = window_attr.height;

	}



	if (mwmhints.flags) {

		XChangeProperty(disp, ret->win, prop, prop, 32,