#define SCROLL_FADE_TIMEOUT 100
#define MOTION_EVENTS_PER_SECOND 25
#define CURSOR_STOPPED_TIMEOUT 80
-#define MAX_SPEED_THRESHOLD 250
+#define MAX_SPEED_THRESHOLD 500
#define PANNABLE_MAX_WIDTH 788
#define PANNABLE_MAX_HEIGHT 378
GdkGC *scrollbars_gc;
GdkColor scroll_color;
+
+ gboolean center_on_child_focus;
+ gboolean center_on_child_focus_pending;
};
/*signals*/
PROP_SIZE_REQUEST_POLICY,
PROP_HADJUSTMENT,
PROP_VADJUSTMENT,
+ PROP_CENTER_ON_CHILD_FOCUS,
PROP_LAST
};
guint property_id,
const GValue * value,
GParamSpec * pspec);
+static void hildon_pannable_area_remove_timeouts (GtkWidget * widget);
static void hildon_pannable_area_dispose (GObject * object);
static void hildon_pannable_area_realize (GtkWidget * widget);
static void hildon_pannable_area_unrealize (GtkWidget * widget);
static void hildon_pannable_area_add (GtkContainer *container, GtkWidget *child);
static void hildon_pannable_area_remove (GtkContainer *container, GtkWidget *child);
static void hildon_pannable_calculate_vel_factor (HildonPannableArea * self);
+static void hildon_pannable_area_set_focus_child (GtkContainer *container,
+ GtkWidget *child);
+static void hildon_pannable_area_center_on_child_focus (HildonPannableArea *area);
static void
container_class->add = hildon_pannable_area_add;
container_class->remove = hildon_pannable_area_remove;
+ container_class->set_focus_child = hildon_pannable_area_set_focus_child;
klass->horizontal_movement = NULL;
klass->vertical_movement = NULL;
"Maximum scroll velocity",
"Maximum distance the child widget should scroll "
"per 'frame', in pixels per frame.",
- 0, G_MAXDOUBLE, 500,
+ 0, G_MAXDOUBLE, 2000,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
"Maximum scroll velocity when overshooting",
"Maximum distance the child widget should scroll "
"per 'frame', in pixels per frame when it overshoots after hitting the edge.",
- 0, G_MAXDOUBLE, 20,
+ 0, G_MAXDOUBLE, 130,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
"Multiplier of the calculated speed",
"Force applied to the movement, multiplies the calculated speed of the"
"user movement the cursor in the screen",
- 0, G_MAXUINT, 50,
+ 0, G_MAXUINT, 80,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
GTK_TYPE_ADJUSTMENT,
G_PARAM_READABLE));
+ g_object_class_install_property (object_class,
+ PROP_CENTER_ON_CHILD_FOCUS,
+ g_param_spec_boolean ("center-on-child-focus",
+ "Center on the child with the focus",
+ "Whether to center the pannable on the child that receives the focus.",
+ FALSE,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT));
+
+
gtk_widget_class_install_style_property (widget_class,
g_param_spec_uint
("indicator-width",
priv->last_in = TRUE;
priv->x_offset = 0;
priv->y_offset = 0;
+ priv->center_on_child_focus_pending = FALSE;
gtk_style_lookup_color (GTK_WIDGET (area)->style,
"SecondaryTextColor", &priv->scroll_color);
hildon_pannable_area_get_vadjustment
(HILDON_PANNABLE_AREA (object)));
break;
+ case PROP_CENTER_ON_CHILD_FOCUS:
+ g_value_set_boolean (value, priv->center_on_child_focus);
+ break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
hildon_pannable_area_set_size_request_policy (HILDON_PANNABLE_AREA (object),
g_value_get_enum (value));
break;
+ case PROP_CENTER_ON_CHILD_FOCUS:
+ priv->center_on_child_focus = g_value_get_boolean (value);
+ break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
HildonPannableAreaPrivate *priv = HILDON_PANNABLE_AREA (object)->priv;
GtkWidget *child = gtk_bin_get_child (GTK_BIN (object));
- if (priv->idle_id) {
- g_signal_emit (object, pannable_area_signals[PANNING_FINISHED], 0);
- g_source_remove (priv->idle_id);
- priv->idle_id = 0;
- }
-
- if (priv->scroll_indicator_timeout){
- g_source_remove (priv->scroll_indicator_timeout);
- priv->scroll_indicator_timeout = 0;
- }
-
- if (priv->motion_event_scroll_timeout){
- g_source_remove (priv->motion_event_scroll_timeout);
- priv->motion_event_scroll_timeout = 0;
- }
+ hildon_pannable_area_remove_timeouts (GTK_WIDGET (object));
if (child) {
g_signal_handlers_disconnect_by_func (child,
gdk_gc_copy (priv->scrollbars_gc, widget->style->fg_gc[GTK_STATE_INSENSITIVE]);
}
+
+static void
+hildon_pannable_area_remove_timeouts (GtkWidget * widget)
+{
+ HildonPannableAreaPrivate *priv = HILDON_PANNABLE_AREA (widget)->priv;
+
+ if (priv->idle_id) {
+ g_signal_emit (widget, pannable_area_signals[PANNING_FINISHED], 0);
+ g_source_remove (priv->idle_id);
+ priv->idle_id = 0;
+ }
+
+ if (priv->scroll_indicator_timeout){
+ g_source_remove (priv->scroll_indicator_timeout);
+ priv->scroll_indicator_timeout = 0;
+ }
+
+ if (priv->motion_event_scroll_timeout){
+ g_source_remove (priv->motion_event_scroll_timeout);
+ priv->motion_event_scroll_timeout = 0;
+ }
+}
+
static void
hildon_pannable_area_unrealize (GtkWidget * widget)
{
priv = HILDON_PANNABLE_AREA (widget)->priv;
+ hildon_pannable_area_remove_timeouts (widget);
+
if (priv->event_window != NULL) {
gdk_window_set_user_data (priv->event_window, NULL);
gdk_window_destroy (priv->event_window);
if (child && GTK_WIDGET_VISIBLE (child)) {
+ hildon_pannable_area_check_scrollbars (HILDON_PANNABLE_AREA (widget));
+
hildon_pannable_area_child_allocate_calculate (widget,
allocation,
&child_allocation);
tx, ty, mask);
if (!selected_window) {
if (tx)
- *tx = x;
+ *tx = x-wx;
if (ty)
- *ty = y;
+ *ty = y-wy;
selected_window = child;
}
} else {
(gpointer) & priv->child);
event = (GdkEventButton *) gdk_event_copy ((GdkEvent *) event);
+ /* remove the reference we added with the copy */
+ g_object_unref (priv->event_window);
event->x = x;
event->y = y;
priv->cx = x;
*vel *= -1;
} else if ((*overshooting > 1) && (*vel < 0)) {
/* we add the MIN in order to avoid very small speeds */
- *vel = MIN ((((gdouble)*overshot_dist)*0.4) * -1, -2.0);
+ *vel = MIN (((((gdouble)*overshot_dist)*0.8) * -1), -10.0);
}
*overshot_dist = CLAMP (*overshot_dist + *vel, 0, overshoot_max);
*vel *= -1;
} else if ((*overshooting > 1) && (*vel > 0)) {
/* we add the MAX in order to avoid very small speeds */
- *vel = MAX ((((gdouble)*overshot_dist)*0.4) * -1, 2.0);
+ *vel = MAX (((((gdouble)*overshot_dist)*0.8) * -1), 10.0);
}
*overshot_dist = CLAMP (*overshot_dist + (*vel), -overshoot_max, 0);
hildon_pannable_area_scroll (area, priv->vel_x, priv->vel_y);
+ gdk_window_process_updates (GTK_WIDGET (area)->window, FALSE);
+
return TRUE;
}
if (priv->child) {
/* Send motion notify to child */
event = (GdkEventMotion *) gdk_event_copy ((GdkEvent *) event);
+ /* remove the reference we added with the copy */
+ g_object_unref (priv->event_window);
event->x = priv->cx + (event->x - priv->ix);
event->y = priv->cy + (event->y - priv->iy);
event->window = g_object_ref (priv->child);
/* If overshoot has been initiated with a finger down, on release set max speed */
if (priv->overshot_dist_y != 0) {
priv->overshooting_y = priv->bounce_steps; /* Hack to stop a bounce in the finger down case */
- priv->vel_y = priv->vmax_overshooting;
+ priv->vel_y = priv->overshot_dist_y * 0.9;
}
if (priv->overshot_dist_x != 0) {
priv->overshooting_x = priv->bounce_steps; /* Hack to stop a bounce in the finger down case */
- priv->vel_x = priv->vmax_overshooting;
+ priv->vel_x = priv->overshot_dist_x * 0.9;
}
priv->button_pressed = FALSE;
(GSourceFunc)
hildon_pannable_area_timeout, widget);
} else {
+ if (priv->center_on_child_focus_pending) {
+ hildon_pannable_area_center_on_child_focus (area);
+ }
+
if (priv->moved)
g_signal_emit (widget, pannable_area_signals[PANNING_FINISHED], 0);
}
+ area->priv->center_on_child_focus_pending = FALSE;
+
priv->scroll_indicator_event_interrupt = 0;
priv->scroll_delay_counter = priv->scrollbar_fade_delay;
event->x, event->y, &x, &y, GDK_BUTTON_RELEASE_MASK);
event = (GdkEventButton *) gdk_event_copy ((GdkEvent *) event);
+ /* remove the reference we added with the copy */
+ g_object_unref (priv->event_window);
event->x = x;
event->y = y;
}
}
+/* call this function if you are not panning */
+static void
+hildon_pannable_area_center_on_child_focus (HildonPannableArea *area)
+{
+ GtkWidget *focused_child = NULL;
+ GtkWidget *window = NULL;
+
+ window = gtk_widget_get_toplevel (GTK_WIDGET (area));
+
+ if (GTK_WIDGET_TOPLEVEL (window)) {
+ focused_child = gtk_window_get_focus (GTK_WINDOW (window));
+ }
+
+ if (focused_child) {
+ hildon_pannable_area_scroll_to_child (area, focused_child);
+ }
+}
+
+static void
+hildon_pannable_area_set_focus_child (GtkContainer *container,
+ GtkWidget *child)
+{
+ HildonPannableArea *area = HILDON_PANNABLE_AREA (container);
+
+ if (!area->priv->center_on_child_focus) {
+ return;
+ }
+
+ if (GTK_IS_WIDGET (child)) {
+ area->priv->center_on_child_focus_pending = TRUE;
+ }
+}
+
static void
hildon_pannable_area_remove (GtkContainer *container, GtkWidget *child)
{
g_return_if_fail (x < width || y < height);
if ((x > -1)&&(hscroll_visible)) {
- priv->scroll_to_x = x - priv->hadjust->page_size/2;
+ priv->scroll_to_x = CLAMP (x - priv->hadjust->page_size/2,
+ priv->hadjust->lower,
+ priv->hadjust->upper - priv->hadjust->page_size);
dist_x = priv->scroll_to_x - priv->hadjust->value;
if (dist_x == 0) {
priv->scroll_to_x = -1;
}
if ((y > -1)&&(vscroll_visible)) {
- priv->scroll_to_y = y - priv->vadjust->page_size/2;
+ priv->scroll_to_y = CLAMP (y - priv->vadjust->page_size/2,
+ priv->vadjust->lower,
+ priv->vadjust->upper - priv->vadjust->page_size);
dist_y = priv->scroll_to_y - priv->vadjust->value;
if (dist_y == 0) {
priv->scroll_to_y = -1;
priv->scroll_to_y = y;
}
- if ((priv->scroll_to_y == -1) && (priv->scroll_to_y == -1)) {
+ if ((priv->scroll_to_y == -1) && (priv->scroll_to_x == -1)) {
return;
}
g_object_notify (G_OBJECT (area), "size-request-policy");
}
+/**
+ * hildon_pannable_area_get_center_on_child_focus
+ * @area: A #HildonPannableArea
+ *
+ * Gets the @area #HildonPannableArea:center-on-child-focus property
+ * value.
+ *
+ * See #HildonPannableArea:center-on-child-focus for more information.
+ *
+ * Returns: the @area #HildonPannableArea:center-on-child-focus value
+ *
+ * Since: 2.2
+ **/
+gboolean
+hildon_pannable_area_get_center_on_child_focus (HildonPannableArea *area)
+{
+ g_return_val_if_fail (HILDON_IS_PANNABLE_AREA (area), FALSE);
+
+ return area->priv->center_on_child_focus;
+}
+
+/**
+ * hildon_pannable_area_set_center_on_child_focus
+ * @area: A #HildonPannableArea
+ * @value: the new value
+ *
+ * Sets the @area #HildonPannableArea:center-on-child-focus property
+ * to @value.
+ *
+ * See #HildonPannableArea:center-on-child-focus for more information.
+ *
+ * Since: 2.2
+ **/
+void
+hildon_pannable_area_set_center_on_child_focus (HildonPannableArea *area,
+ gboolean value)
+{
+ g_return_if_fail (HILDON_IS_PANNABLE_AREA (area));
+
+ area->priv->center_on_child_focus = value;
+}
projects / hildon / blobdiff