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bgo#590823 - RANDR - Automatically turn on outputs which support Mirror Screens

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Previously, outputs could remain off if the user just selected Mirror Screens.
Now we automatically turn on all the outputs which support the clone mode,
to avoid extra work on the part of the user.

Signed-off-by: Federico Mena Quintero <federico@novell.com>
This commit is contained in:
Federico Mena Quintero 2009-12-09 15:59:11 -06:00
parent 76c2b80e34
commit 6d40eb2648
1 changed files with 79 additions and 0 deletions
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79
capplets/display/xrandr-capplet.c
View file

@ -858,6 +858,69 @@ lay_out_outputs_horizontally (App *app)
}
/* FIXME: this function is copied from gnome-settings-daemon/plugins/xrandr/gsd-xrandr-manager.c.
* Do we need to put this function in gnome-desktop for public use?
*/
static gboolean
get_clone_size (GnomeRRScreen *screen, int *width, int *height)
{
GnomeRRMode **modes = gnome_rr_screen_list_clone_modes (screen);
int best_w, best_h;
int i;
best_w = 0;
best_h = 0;
for (i = 0; modes[i] != NULL; ++i) {
GnomeRRMode *mode = modes[i];
int w, h;
w = gnome_rr_mode_get_width (mode);
h = gnome_rr_mode_get_height (mode);
if (w * h > best_w * best_h) {
best_w = w;
best_h = h;
}
}
if (best_w > 0 && best_h > 0) {
if (width)
*width = best_w;
if (height)
*height = best_h;
return TRUE;
}
return FALSE;
}
static gboolean
output_info_supports_mode (App *app, GnomeOutputInfo *info, int width, int height)
{
GnomeRROutput *output;
GnomeRRMode **modes;
int i;
if (!info->connected)
return FALSE;
output = gnome_rr_screen_get_output_by_name (app->screen, info->name);
if (!output)
return FALSE;
modes = gnome_rr_output_list_modes (output);
for (i = 0; modes[i]; i++) {
if (gnome_rr_mode_get_width (modes[i]) == width
&& gnome_rr_mode_get_height (modes[i]) == height)
return TRUE;
}
return FALSE;
}
static void
on_clone_changed (GtkWidget *box, gpointer data)
{
@ -869,6 +932,7 @@ on_clone_changed (GtkWidget *box, gpointer data)
if (app->current_configuration->clone)
{
int i;
int width, height;
for (i = 0; app->current_configuration->outputs[i]; ++i)
{
@ -878,6 +942,21 @@ on_clone_changed (GtkWidget *box, gpointer data)
break;
}
}
/* Turn on all the connected screens that support the best clone mode.
* The user may hit "Mirror Screens", but he shouldn't have to turn on
* all the required outputs as well.
*/
get_clone_size (app->screen, &width, &height);
for (i = 0; app->current_configuration->outputs[i]; i++) {
if (output_info_supports_mode (app, app->current_configuration->outputs[i], width, height)) {
app->current_configuration->outputs[i]->on = TRUE;
app->current_configuration->outputs[i]->width = width;
app->current_configuration->outputs[i]->height = height;
}
}
}
else
{