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#include "config.h"
#include "shell-workspace-background.h"
#include "shell-global.h"
#include <meta/meta-workspace-manager.h>
#define BACKGROUND_MARGIN 12
enum
{
PROP_0,
PROP_MONITOR_INDEX,
PROP_STATE_ADJUSTMENT_VALUE,
PROP_LAST
};
static GParamSpec *obj_props[PROP_LAST] = { NULL, };
struct _ShellWorkspaceBackground
{
/*< private >*/
StWidget parent_instance;
int monitor_index;
double state_adjustment_value;
MetaRectangle work_area;
MetaRectangle monitor_geometry;
};
G_DEFINE_TYPE (ShellWorkspaceBackground, shell_workspace_background, ST_TYPE_WIDGET);
static void
on_workareas_changed (ShellWorkspaceBackground *self)
{
ShellGlobal *global = shell_global_get ();
MetaDisplay *display = shell_global_get_display (global);
MetaWorkspaceManager *workspace_manager = shell_global_get_workspace_manager (global);
MetaWorkspace *workspace =
meta_workspace_manager_get_workspace_by_index (workspace_manager, 0);
meta_workspace_get_work_area_for_monitor (workspace,
self->monitor_index,
&self->work_area);
meta_display_get_monitor_geometry (display,
self->monitor_index,
&self->monitor_geometry);
}
static void
shell_workspace_background_allocate (ClutterActor *actor,
const ClutterActorBox *box)
{
ShellWorkspaceBackground *self = SHELL_WORKSPACE_BACKGROUND (actor);
ShellGlobal *global = shell_global_get ();
ClutterStage *stage = shell_global_get_stage (global);
StThemeContext *context = st_theme_context_get_for_stage (stage);
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (actor));
ClutterActorBox scaled_box, my_box, content_box;
ClutterActor *child;
float content_width, content_height;
float scaled_width, scaled_height;
float x_scale, y_scale;
float width, height;
int left_offset, right_offset;
int top_offset, bottom_offset;
int scale_factor;
scale_factor = st_theme_context_get_scale_factor (context);
clutter_actor_box_get_size (box, &width, &height);
scaled_height = height - BACKGROUND_MARGIN * 2 * scale_factor;
scaled_width = (scaled_height / height) * width;
scaled_box.x1 = box->x1 + (width - scaled_width) / 2;
scaled_box.y1 = box->y1 + (height - scaled_height) / 2;
clutter_actor_box_set_size (&scaled_box, scaled_width, scaled_height);
clutter_actor_box_interpolate(box, &scaled_box,
self->state_adjustment_value, &my_box);
clutter_actor_set_allocation (actor, &my_box);
st_theme_node_get_content_box (theme_node, &my_box, &content_box);
child = clutter_actor_get_first_child (actor);
clutter_actor_allocate (child, &content_box);
clutter_actor_box_get_size (&content_box, &content_width, &content_height);
x_scale = content_width / self->work_area.width;
y_scale = content_height / self->work_area.height;
left_offset = self->work_area.x - self->monitor_geometry.x;
top_offset = self->work_area.y - self->monitor_geometry.y;
right_offset = self->monitor_geometry.width - self->work_area.width - left_offset;
bottom_offset = self->monitor_geometry.height - self->work_area.height - top_offset;
clutter_actor_box_set_origin (&content_box,
-left_offset * x_scale,
-top_offset * y_scale);
clutter_actor_box_set_size (&content_box,
content_width + (left_offset + right_offset) * x_scale,
content_height + (top_offset + bottom_offset) * y_scale);
child = clutter_actor_get_first_child (child);
clutter_actor_allocate (child, &content_box);
}
static void
shell_workspace_background_constructed (GObject *object)
{
G_OBJECT_CLASS (shell_workspace_background_parent_class)->constructed (object);
on_workareas_changed (SHELL_WORKSPACE_BACKGROUND (object));
}
static void
shell_workspace_background_get_property (GObject *gobject,
unsigned int property_id,
GValue *value,
GParamSpec *pspec)
{
ShellWorkspaceBackground *self = SHELL_WORKSPACE_BACKGROUND (gobject);
switch (property_id)
{
case PROP_MONITOR_INDEX:
g_value_set_int (value, self->monitor_index);
break;
case PROP_STATE_ADJUSTMENT_VALUE:
g_value_set_double (value, self->state_adjustment_value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, property_id, pspec);
}
}
static void
shell_workspace_background_set_property (GObject *gobject,
unsigned int property_id,
const GValue *value,
GParamSpec *pspec)
{
ShellWorkspaceBackground *self = SHELL_WORKSPACE_BACKGROUND (gobject);
switch (property_id)
{
case PROP_MONITOR_INDEX:
{
int new_value = g_value_get_int (value);
if (self->monitor_index != new_value)
{
self->monitor_index = new_value;
g_object_notify_by_pspec (gobject, obj_props[PROP_MONITOR_INDEX]);
}
}
break;
case PROP_STATE_ADJUSTMENT_VALUE:
{
double new_value = g_value_get_double (value);
if (self->state_adjustment_value != new_value)
{
self->state_adjustment_value = new_value;
g_object_notify_by_pspec (gobject, obj_props[PROP_STATE_ADJUSTMENT_VALUE]);
}
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, property_id, pspec);
}
}
static void
shell_workspace_background_class_init (ShellWorkspaceBackgroundClass *klass)
{
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
actor_class->allocate = shell_workspace_background_allocate;
gobject_class->constructed = shell_workspace_background_constructed;
gobject_class->get_property = shell_workspace_background_get_property;
gobject_class->set_property = shell_workspace_background_set_property;
/**
* ShellWorkspaceBackground:monitor-index:
*/
obj_props[PROP_MONITOR_INDEX] =
g_param_spec_int ("monitor-index", "", "",
0, G_MAXINT, 0,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS |
G_PARAM_EXPLICIT_NOTIFY);
/**
* ShellWorkspaceBackground:state-adjustment-value:
*/
obj_props[PROP_STATE_ADJUSTMENT_VALUE] =
g_param_spec_double ("state-adjustment-value", "", "",
-G_MAXDOUBLE, G_MAXDOUBLE, 0.0,
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS |
G_PARAM_EXPLICIT_NOTIFY);
g_object_class_install_properties (gobject_class, PROP_LAST, obj_props);
}
static void
shell_workspace_background_init (ShellWorkspaceBackground *self)
{
ShellGlobal *global = shell_global_get ();
MetaDisplay *display = shell_global_get_display (global);
g_signal_connect_object (display, "workareas-changed",
G_CALLBACK (on_workareas_changed),
self, G_CONNECT_SWAPPED);
}
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