void
mnb_zones_preview_add_window (MnbZonesPreview *preview,
MetaWindowActor *window)
{
ClutterActor *clone;
ClutterActor *group;
MetaRectangle rect;
gint workspace;
/* TODO: Determine if we need to add a weak reference on the window
* in case it gets destroyed during the animation.
* I'd have thought that the clone's reference on the texture
* would be enough that this wouldn't be necessary.
*
* We do; while the clone's reference is enough to keep the texture about,
* it is not enough to make it possible to map the clone once the texture
* has been unparented.
*/
workspace = meta_window_actor_get_workspace (window);
group = mnb_zones_preview_get_workspace_group (preview, workspace);
clone = clutter_clone_new (meta_window_actor_get_texture (window));
g_signal_connect (window, "destroy",
G_CALLBACK (mnb_zones_preview_mcw_destroy_cb),
clone);
g_signal_connect (clone, "destroy",
G_CALLBACK (mnb_zones_preview_clone_destroy_cb),
window);
meta_window_get_input_rect (meta_window_actor_get_meta_window (window), &rect);
clutter_actor_set_position (clone, rect.x, rect.y);
clutter_container_add_actor (CLUTTER_CONTAINER (group), clone);
}
static void grid_placement ( DeepinWorkspaceOverview* self,
MonitorData* md, MetaRectangle area, gboolean closest)
{
DeepinWorkspaceOverviewPrivate* priv = self->priv;
GPtrArray* clones = md->clones;
if (!clones || clones->len == 0) return;
int window_count = clones->len;
int columns = (int)ceil (sqrt (window_count));
int rows = (int)ceil (window_count / (double)columns);
// Assign slots
int slot_width = area.width / columns;
int slot_height = area.height / rows;
GList* windows = NULL;
for (int i = 0; i < clones->len; i++) {
MetaDeepinClonedWidget* clone = g_ptr_array_index(clones, i);
TilableWindow* tw = g_new0(TilableWindow, 1);
tw->id = clone;
MetaWindow* win = meta_deepin_cloned_widget_get_window(clone);
meta_window_get_input_rect(win, &tw->rect);
windows = g_list_append(windows, tw);
}
TilableWindow* taken_slots[rows * columns];
memset(taken_slots, 0, sizeof taken_slots);
if (closest) {
// Assign each window to the closest available slot.
// precalculate all slot centers
GdkPoint slot_centers[rows * columns];
memset(slot_centers, 0, sizeof slot_centers);
for (int x = 0; x < columns; x++) {
for (int y = 0; y < rows; y++) {
slot_centers[x + y * columns] = (GdkPoint){
area.x + slot_width * x + slot_width / 2,
area.y + slot_height * y + slot_height / 2
};
}
}
GList* tmplist = g_list_copy(windows);
while (g_list_length(tmplist) > 0) {
GList* link = g_list_nth(tmplist, 0);
TilableWindow* window = (TilableWindow*)link->data;
MetaRectangle rect = window->rect;
int slot_candidate = -1;
int slot_candidate_distance = INT_MAX;
GdkPoint pos = rect_center (rect);
// all slots
for (int i = 0; i < columns * rows; i++) {
if (i > window_count - 1)
break;
int dist = squared_distance (pos, slot_centers[i]);
if (dist < slot_candidate_distance) {
// window is interested in this slot
TilableWindow* occupier = taken_slots[i];
if (occupier == window)
continue;
if (occupier == NULL || dist < squared_distance (rect_center (occupier->rect), slot_centers[i])) {
// either nobody lives here, or we're better - takeover the slot if it's our best
slot_candidate = i;
slot_candidate_distance = dist;
}
}
}
if (slot_candidate == -1)
continue;
if (taken_slots[slot_candidate] != NULL)
tmplist = g_list_prepend(tmplist, taken_slots[slot_candidate]);
tmplist = g_list_remove_link(tmplist, link);
taken_slots[slot_candidate] = window;
g_list_free(link);
}
g_list_free(tmplist);
} else {
// Assign each window as the origin order.
for (int i = 0; i < clones->len; i++) {
GList* link = g_list_nth (windows, i);
taken_slots[i] = (TilableWindow*)link->data;
}
}
// see how many windows we have on the last row
int left_over = (int)window_count - columns * (rows - 1);
for (int slot = 0; slot < columns * rows; slot++) {
TilableWindow* window = taken_slots[slot];
// some slots might be empty
if (window == NULL)
continue;
MetaRectangle rect = window->rect;
// Work out where the slot is
MetaRectangle target = {
area.x + (slot % columns) * slot_width,
area.y + (slot / columns) * slot_height,
slot_width,
slot_height
};
target = rect_adjusted (target, 10, 10, -10, -10);
float scale;
if (target.width / (double)rect.width < target.height / (double)rect.height) {
// Center vertically
scale = target.width / (float)rect.width;
target.y += (target.height - (int)(rect.height * scale)) / 2;
target.height = (int)floorf (rect.height * scale);
} else {
// Center horizontally
scale = target.height / (float)rect.height;
target.x += (target.width - (int)(rect.width * scale)) / 2;
target.width = (int)floorf (rect.width * scale);
}
// Don't scale the windows too much
if (scale > 1.0) {
scale = 1.0f;
target = (MetaRectangle){
rect_center (target).x - (int)floorf (rect.width * scale) / 2,
rect_center (target).y - (int)floorf (rect.height * scale) / 2,
(int)floorf (scale * rect.width),
(int)floorf (scale * rect.height)
};
}
// put the last row in the center, if necessary
if (left_over != columns && slot >= columns * (rows - 1))
target.x += (columns - left_over) * slot_width / 2;
place_window(self, window->id, target);
}
g_list_free_full(windows, g_free);
}