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ewmh: implement support for _NET_WORKAREA (rdesktop can use that)

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Please note that rdesktop’s -g workarea option will not work on
64-bit systems at the moment because of a bug in rdesktop (see the
rdesktop-devel mailing list).
This commit is contained in:
Michael Stapelberg
2009-12-31 17:48:41 +01:00
parent c50bde458b
commit 75aac5bc02
7 changed files with 59 additions and 5 deletions
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32
src/ewmh.c
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@ -11,11 +11,15 @@
*
*/
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include "data.h"
#include "table.h"
#include "i3.h"
#include "xcb.h"
#include "util.h"
#include "log.h"
/*
* Updates _NET_CURRENT_DESKTOP with the current desktop number.
@ -42,3 +46,31 @@ void ewmh_update_active_window(xcb_window_t window) {
xcb_change_property(global_conn, XCB_PROP_MODE_REPLACE, root,
atoms[_NET_ACTIVE_WINDOW], WINDOW, 32, 1, &window);
}
/*
* Updates the workarea for each desktop.
*
* EWMH: Contains a geometry for each desktop. These geometries specify an area
* that is completely contained within the viewport. Work area SHOULD be used by
* desktop applications to place desktop icons appropriately.
*
*/
void ewmh_update_workarea() {
Workspace *ws;
int num_workspaces = 0, count = 0;
/* Get the number of workspaces */
TAILQ_FOREACH(ws, workspaces, workspaces)
num_workspaces++;
DLOG("Got %d workspaces\n", num_workspaces);
uint8_t *workarea = smalloc(sizeof(Rect) * num_workspaces);
TAILQ_FOREACH(ws, workspaces, workspaces) {
DLOG("storing %d: %dx%d with %d x %d\n", count, ws->rect.x, ws->rect.y, ws->rect.width, ws->rect.height);
memcpy(workarea + (sizeof(Rect) * count++), &(ws->rect), sizeof(Rect));
}
xcb_change_property(global_conn, XCB_PROP_MODE_REPLACE, root,
atoms[_NET_WORKAREA], CARDINAL, 32,
num_workspaces * (sizeof(Rect) / sizeof(uint32_t)),
workarea);
free(workarea);
xcb_flush(global_conn);
}