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Implement ecore_x_randr_current_crtc_get 

SVN revision: 68343
This commit is contained in:
Leif Middelschulte 2012-02-23 15:10:38 +00:00
parent 3597d526eb
commit 23528373cc
1 changed files with 61 additions and 0 deletions
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61
legacy/ecore/src/lib/ecore_x/xlib/ecore_x_randr_12.c
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@ -533,6 +533,67 @@ ecore_x_randr_crtcs_get(Ecore_X_Window root,
#endif
}
/*
* @brief get the CRTCs, which display a certain window
* @param window window the displaying crtcs shall be found for
* @param num the number of crtcs displaying the window
* @return array of crtcs that display a certain window. NULL if no crtcs
* was found that displays the specified window.
*/
EAPI Ecore_X_Randr_Crtc *
ecore_x_randr_current_crtc_get(Ecore_X_Window window,
int *num)
{
#ifdef ECORE_XRANDR
Ecore_X_Window root;
Eina_Rectangle w_geo, c_geo;
Ecore_X_Randr_Crtc *crtcs;
Ecore_X_Randr_Mode mode;
Ecore_X_Randr_Output *ret = NULL;
Window tw;
int ncrtcs, i, nret = 0, rx = 0, ry = 0;
if (_randr_version < RANDR_1_2) goto _ecore_x_randr_current_crtc_get_fail;
ecore_x_window_geometry_get(window,
&w_geo.x, &w_geo.y,
&w_geo.w, &w_geo.h);
root = ecore_x_window_root_get(window);
crtcs = ecore_x_randr_crtcs_get(root, &ncrtcs);
if (!crtcs) goto _ecore_x_randr_current_crtc_get_fail;
/* now get window RELATIVE to root window - thats what matters. */
XTranslateCoordinates(_ecore_x_disp, window, root, 0, 0, &rx, &ry, &tw);
w_geo.x = rx;
w_geo.y = ry;
for (i = 0, nret = 0; i < ncrtcs; i++)
{
/* if crtc is not enabled, don't bother about it any further */
mode = ecore_x_randr_crtc_mode_get(root, crtcs[i]);
if (mode == Ecore_X_Randr_None) continue;
ecore_x_randr_crtc_geometry_get(root, crtcs[i],
&c_geo.x, &c_geo.y,
&c_geo.w, &c_geo.h);
if (eina_rectangles_intersect(&w_geo, &c_geo))
{
ret = realloc(ret, (sizeof(Ecore_X_Randr_Crtc) * ++nret));
ret[nret] = crtcs[i];
}
}
free(crtcs);
if (num) *num = nret;
return ret;
_ecore_x_randr_current_crtc_get_fail:
#endif
if (num) *num = 0;
return NULL;
}
EAPI Ecore_X_Randr_Output *
ecore_x_randr_outputs_get(Ecore_X_Window root,
int *num)