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backends: Add meta_monitor_manager_get_monitor_at_point()

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This function returns the monitor_info index corresponding to the given
coordinates, or -1 if none is found at that point. The native backend
has been changed in places where it could make use of this function.

https://bugzilla.gnome.org/show_bug.cgi?id=746896
This commit is contained in:
Carlos Garnacho 2015-03-27 15:48:49 +01:00
parent 9f17c05a15
commit 8188cddcf7
3 changed files with 30 additions and 29 deletions
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4
src/backends/meta-monitor-manager-private.h
View file

@ -370,6 +370,10 @@ gboolean meta_monitor_manager_get_monitor_matrix (MetaMonitorManager *
MetaOutput *output,
gfloat matrix[6]);
gint meta_monitor_manager_get_monitor_at_point (MetaMonitorManager *manager,
gfloat x,
gfloat y);
/* Returns true if transform causes width and height to be inverted
This is true for the odd transforms in the enum */
static inline gboolean

24
src/backends/meta-monitor-manager.c
View file

@ -1368,3 +1368,27 @@ meta_monitor_manager_get_monitor_for_output (MetaMonitorManager *manager,
return -1;
}
gint
meta_monitor_manager_get_monitor_at_point (MetaMonitorManager *manager,
gfloat x,
gfloat y)
{
unsigned int i;
for (i = 0; i < manager->n_monitor_infos; i++)
{
MetaMonitorInfo *monitor = &manager->monitor_infos[i];
int left, right, top, bottom;
left = monitor->rect.x;
right = left + monitor->rect.width;
top = monitor->rect.y;
bottom = top + monitor->rect.height;
if ((x >= left) && (x < right) && (y >= top) && (y < bottom))
return i;
}
return -1;
}

31
src/backends/native/meta-backend-native.c
View file

@ -84,31 +84,6 @@ constrain_to_barriers (ClutterInputDevice *device,
*
*/
static gboolean
check_all_screen_monitors(MetaMonitorInfo *monitors,
unsigned n_monitors,
float x,
float y)
{
unsigned int i;
for (i = 0; i < n_monitors; i++)
{
MetaMonitorInfo *monitor = &monitors[i];
int left, right, top, bottom;
left = monitor->rect.x;
right = left + monitor->rect.width;
top = monitor->rect.y;
bottom = top + monitor->rect.height;
if ((x >= left) && (x < right) && (y >= top) && (y < bottom))
return TRUE;
}
return FALSE;
}
static void
constrain_all_screen_monitors (ClutterInputDevice *device,
MetaMonitorInfo *monitors,
@ -162,7 +137,6 @@ pointer_constrain_callback (ClutterInputDevice *device,
MetaMonitorManager *monitor_manager;
MetaMonitorInfo *monitors;
unsigned int n_monitors;
gboolean ret;
/* Constrain to barriers */
constrain_to_barriers (device, time, new_x, new_y);
@ -171,8 +145,7 @@ pointer_constrain_callback (ClutterInputDevice *device,
monitors = meta_monitor_manager_get_monitor_infos (monitor_manager, &n_monitors);
/* if we're moving inside a monitor, we're fine */
ret = check_all_screen_monitors(monitors, n_monitors, *new_x, *new_y);
if (ret == TRUE)
if (meta_monitor_manager_get_monitor_at_point (monitor_manager, *new_x, *new_y) >= 0)
return;
/* if we're trying to escape, clamp to the CRTC we're coming from */
@ -195,7 +168,7 @@ on_monitors_changed (MetaMonitorManager *monitor_manager,
monitors = meta_monitor_manager_get_monitor_infos (monitor_manager, &n_monitors);
/* if we're inside a monitor, we're fine */
if (check_all_screen_monitors (monitors, n_monitors, point.x, point.y))
if (meta_monitor_manager_get_monitor_at_point (monitor_manager, point.x, point.y) >= 0)
return;
/* warp the pointer to the primary monitor so it isn't lost */