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client.content: Use correct client size (FS#1150) 

The size saved in c->geometry also includes the titlebars. Thus, for getting the
window content, we have to subtract this from the size.

Before this, the call to xcb_image_get() was failing with a BadMatch error,
because we were asking for an area that is outside of the actual client's
window's geometry.

Signed-off-by: Uli Schlachter <psychon@znc.in>
This commit is contained in:
Uli Schlachter 2013-09-16 12:06:10 +02:00
parent bb304c80a3
commit 11bef0795a
1 changed files with 8 additions and 3 deletions
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11
objects/client.c
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@ -1789,11 +1789,16 @@ LUA_OBJECT_EXPORT_PROPERTY(client, client_t, maximized_vertical, lua_pushboolean
static int
luaA_client_get_content(lua_State *L, client_t *c)
{
xcb_image_t *ximage = xcb_image_get(globalconf.connection,
xcb_image_t *ximage;
int width = c->geometry.width;
int height = c->geometry.height;
width -= c->titlebar[CLIENT_TITLEBAR_LEFT].size + c->titlebar[CLIENT_TITLEBAR_RIGHT].size;
height -= c->titlebar[CLIENT_TITLEBAR_TOP].size + c->titlebar[CLIENT_TITLEBAR_BOTTOM].size;
ximage = xcb_image_get(globalconf.connection,
c->window,
0, 0,
c->geometry.width,
c->geometry.height,
width, height,
~0, XCB_IMAGE_FORMAT_Z_PIXMAP);
cairo_surface_t *surface = NULL;