* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/*
*/
#include "config.h"
+
#include "gtkviewport.h"
+
+#include "gtkadjustment.h"
#include "gtkintl.h"
#include "gtkmarshalers.h"
#include "gtkprivate.h"
-#include "gtkalias.h"
+#include "gtkscrollable.h"
+#include "gtktypebuiltins.h"
+
+
+/**
+ * SECTION:gtkviewport
+ * @Short_description: An adapter which makes widgets scrollable
+ * @Title: GtkViewport
+ * @See_also:#GtkScrolledWindow, #GtkAdjustment
+ *
+ * The #GtkViewport widget acts as an adaptor class, implementing
+ * scrollability for child widgets that lack their own scrolling
+ * capabilities. Use #GtkViewport to scroll child widgets such as
+ * #GtkGrid, #GtkBox, and so on.
+ *
+ * If a widget has native scrolling abilities, such as #GtkTextView,
+ * #GtkTreeView or #GtkIconView, it can be added to a #GtkScrolledWindow
+ * with gtk_container_add(). If a widget does not, you must first add the
+ * widget to a #GtkViewport, then add the viewport to the scrolled window.
+ * gtk_container_add() does this automatically if a child that does not
+ * implement #GtkScrollable is added to a #GtkScrolledWindow, so you can
+ * ignore the presence of the viewport.
+ *
+ * The #GtkViewport will start scrolling content only if allocated less
+ * than the child widget's minimum size in a given orientation.
+ */
+
+struct _GtkViewportPrivate
+{
+ GtkAdjustment *hadjustment;
+ GtkAdjustment *vadjustment;
+ GtkShadowType shadow_type;
+
+ GdkWindow *bin_window;
+ GdkWindow *view_window;
+
+ /* GtkScrollablePolicy needs to be checked when
+ * driving the scrollable adjustment values */
+ guint hscroll_policy : 1;
+ guint vscroll_policy : 1;
+};
enum {
PROP_0,
PROP_HADJUSTMENT,
PROP_VADJUSTMENT,
+ PROP_HSCROLL_POLICY,
+ PROP_VSCROLL_POLICY,
PROP_SHADOW_TYPE
};
-static void gtk_viewport_finalize (GObject *object);
-static void gtk_viewport_destroy (GtkObject *object);
static void gtk_viewport_set_property (GObject *object,
guint prop_id,
const GValue *value,
guint prop_id,
GValue *value,
GParamSpec *pspec);
-static void gtk_viewport_set_scroll_adjustments (GtkViewport *viewport,
- GtkAdjustment *hadjustment,
- GtkAdjustment *vadjustment);
+static void gtk_viewport_destroy (GtkWidget *widget);
static void gtk_viewport_realize (GtkWidget *widget);
static void gtk_viewport_unrealize (GtkWidget *widget);
-static void gtk_viewport_paint (GtkWidget *widget,
- GdkRectangle *area);
-static gint gtk_viewport_expose (GtkWidget *widget,
- GdkEventExpose *event);
+static gint gtk_viewport_draw (GtkWidget *widget,
+ cairo_t *cr);
static void gtk_viewport_add (GtkContainer *container,
GtkWidget *widget);
-static void gtk_viewport_size_request (GtkWidget *widget,
- GtkRequisition *requisition);
static void gtk_viewport_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_viewport_adjustment_value_changed (GtkAdjustment *adjustment,
gpointer data);
-static void gtk_viewport_style_set (GtkWidget *widget,
- GtkStyle *previous_style);
+static void gtk_viewport_style_updated (GtkWidget *widget);
+
+static void gtk_viewport_get_preferred_width (GtkWidget *widget,
+ gint *minimum_size,
+ gint *natural_size);
+static void gtk_viewport_get_preferred_height (GtkWidget *widget,
+ gint *minimum_size,
+ gint *natural_size);
+
+static void viewport_set_adjustment (GtkViewport *viewport,
+ GtkOrientation orientation,
+ GtkAdjustment *adjustment);
-G_DEFINE_TYPE (GtkViewport, gtk_viewport, GTK_TYPE_BIN)
+G_DEFINE_TYPE_WITH_CODE (GtkViewport, gtk_viewport, GTK_TYPE_BIN,
+ G_IMPLEMENT_INTERFACE (GTK_TYPE_SCROLLABLE, NULL))
static void
gtk_viewport_class_init (GtkViewportClass *class)
{
- GtkObjectClass *object_class;
GObjectClass *gobject_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
- object_class = (GtkObjectClass*) class;
gobject_class = G_OBJECT_CLASS (class);
widget_class = (GtkWidgetClass*) class;
container_class = (GtkContainerClass*) class;
- gobject_class->finalize = gtk_viewport_finalize;
gobject_class->set_property = gtk_viewport_set_property;
gobject_class->get_property = gtk_viewport_get_property;
- object_class->destroy = gtk_viewport_destroy;
-
+
+ widget_class->destroy = gtk_viewport_destroy;
widget_class->realize = gtk_viewport_realize;
widget_class->unrealize = gtk_viewport_unrealize;
- widget_class->expose_event = gtk_viewport_expose;
- widget_class->size_request = gtk_viewport_size_request;
+ widget_class->draw = gtk_viewport_draw;
widget_class->size_allocate = gtk_viewport_size_allocate;
- widget_class->style_set = gtk_viewport_style_set;
+ widget_class->style_updated = gtk_viewport_style_updated;
+ widget_class->get_preferred_width = gtk_viewport_get_preferred_width;
+ widget_class->get_preferred_height = gtk_viewport_get_preferred_height;
- container_class->add = gtk_viewport_add;
+ gtk_widget_class_set_accessible_role (widget_class, ATK_ROLE_VIEWPORT);
- class->set_scroll_adjustments = gtk_viewport_set_scroll_adjustments;
-
- g_object_class_install_property (gobject_class,
- PROP_HADJUSTMENT,
- g_param_spec_object ("hadjustment",
- P_("Horizontal adjustment"),
- P_("The GtkAdjustment that determines the values of the horizontal position for this viewport"),
- GTK_TYPE_ADJUSTMENT,
- GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
+ container_class->add = gtk_viewport_add;
- g_object_class_install_property (gobject_class,
- PROP_VADJUSTMENT,
- g_param_spec_object ("vadjustment",
- P_("Vertical adjustment"),
- P_("The GtkAdjustment that determines the values of the vertical position for this viewport"),
- GTK_TYPE_ADJUSTMENT,
- GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
+ /* GtkScrollable implementation */
+ g_object_class_override_property (gobject_class, PROP_HADJUSTMENT, "hadjustment");
+ g_object_class_override_property (gobject_class, PROP_VADJUSTMENT, "vadjustment");
+ g_object_class_override_property (gobject_class, PROP_HSCROLL_POLICY, "hscroll-policy");
+ g_object_class_override_property (gobject_class, PROP_VSCROLL_POLICY, "vscroll-policy");
g_object_class_install_property (gobject_class,
PROP_SHADOW_TYPE,
GTK_SHADOW_IN,
GTK_PARAM_READWRITE));
- /**
- * GtkViewport::set-scroll-adjustments
- * @horizontal: the horizontal #GtkAdjustment
- * @vertical: the vertical #GtkAdjustment
- *
- * Set the scroll adjustments for the viewport. Usually scrolled containers
- * like #GtkScrolledWindow will emit this signal to connect two instances
- * of #GtkScrollbar to the scroll directions of the #GtkViewport.
- */
- widget_class->set_scroll_adjustments_signal =
- g_signal_new (I_("set-scroll-adjustments"),
- G_OBJECT_CLASS_TYPE (gobject_class),
- G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
- G_STRUCT_OFFSET (GtkViewportClass, set_scroll_adjustments),
- NULL, NULL,
- _gtk_marshal_VOID__OBJECT_OBJECT,
- G_TYPE_NONE, 2,
- GTK_TYPE_ADJUSTMENT,
- GTK_TYPE_ADJUSTMENT);
+ g_type_class_add_private (class, sizeof (GtkViewportPrivate));
}
static void
switch (prop_id)
{
case PROP_HADJUSTMENT:
- gtk_viewport_set_hadjustment (viewport, g_value_get_object (value));
+ viewport_set_adjustment (viewport, GTK_ORIENTATION_HORIZONTAL, g_value_get_object (value));
break;
case PROP_VADJUSTMENT:
- gtk_viewport_set_vadjustment (viewport, g_value_get_object (value));
+ viewport_set_adjustment (viewport, GTK_ORIENTATION_VERTICAL, g_value_get_object (value));
+ break;
+ case PROP_HSCROLL_POLICY:
+ viewport->priv->hscroll_policy = g_value_get_enum (value);
+ gtk_widget_queue_resize (GTK_WIDGET (viewport));
+ break;
+ case PROP_VSCROLL_POLICY:
+ viewport->priv->vscroll_policy = g_value_get_enum (value);
+ gtk_widget_queue_resize (GTK_WIDGET (viewport));
break;
case PROP_SHADOW_TYPE:
gtk_viewport_set_shadow_type (viewport, g_value_get_enum (value));
GValue *value,
GParamSpec *pspec)
{
- GtkViewport *viewport;
-
- viewport = GTK_VIEWPORT (object);
+ GtkViewport *viewport = GTK_VIEWPORT (object);
+ GtkViewportPrivate *priv = viewport->priv;
switch (prop_id)
{
case PROP_HADJUSTMENT:
- g_value_set_object (value, viewport->hadjustment);
+ g_value_set_object (value, priv->hadjustment);
break;
case PROP_VADJUSTMENT:
- g_value_set_object (value, viewport->vadjustment);
+ g_value_set_object (value, priv->vadjustment);
+ break;
+ case PROP_HSCROLL_POLICY:
+ g_value_set_enum (value, priv->hscroll_policy);
+ break;
+ case PROP_VSCROLL_POLICY:
+ g_value_set_enum (value, priv->vscroll_policy);
break;
case PROP_SHADOW_TYPE:
- g_value_set_enum (value, viewport->shadow_type);
+ g_value_set_enum (value, priv->shadow_type);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
static void
gtk_viewport_init (GtkViewport *viewport)
{
- GTK_WIDGET_UNSET_FLAGS (viewport, GTK_NO_WINDOW);
+ GtkViewportPrivate *priv;
+
+ viewport->priv = G_TYPE_INSTANCE_GET_PRIVATE (viewport,
+ GTK_TYPE_VIEWPORT,
+ GtkViewportPrivate);
+ priv = viewport->priv;
+
+ gtk_widget_set_has_window (GTK_WIDGET (viewport), TRUE);
gtk_widget_set_redraw_on_allocate (GTK_WIDGET (viewport), FALSE);
- gtk_container_set_resize_mode (GTK_CONTAINER (viewport), GTK_RESIZE_QUEUE);
-
- viewport->shadow_type = GTK_SHADOW_IN;
- viewport->view_window = NULL;
- viewport->bin_window = NULL;
- viewport->hadjustment = NULL;
- viewport->vadjustment = NULL;
+
+ priv->shadow_type = GTK_SHADOW_IN;
+ priv->view_window = NULL;
+ priv->bin_window = NULL;
+ priv->hadjustment = NULL;
+ priv->vadjustment = NULL;
+
+ viewport_set_adjustment (viewport, GTK_ORIENTATION_HORIZONTAL, NULL);
+ viewport_set_adjustment (viewport, GTK_ORIENTATION_VERTICAL, NULL);
}
/**
* gtk_viewport_new:
- * @hadjustment: horizontal adjustment.
- * @vadjustment: vertical adjustment.
- * @returns: a new #GtkViewport.
+ * @hadjustment: (allow-none): horizontal adjustment
+ * @vadjustment: (allow-none): vertical adjustment
*
- * Creates a new #GtkViewport with the given adjustments.
+ * Creates a new #GtkViewport with the given adjustments, or with default
+ * adjustments if none are given.
*
- **/
+ * Returns: a new #GtkViewport
+ */
GtkWidget*
gtk_viewport_new (GtkAdjustment *hadjustment,
GtkAdjustment *vadjustment)
#define ADJUSTMENT_POINTER(viewport, orientation) \
(((orientation) == GTK_ORIENTATION_HORIZONTAL) ? \
- &(viewport)->hadjustment : &(viewport)->vadjustment)
+ &(viewport)->priv->hadjustment : &(viewport)->priv->vadjustment)
static void
viewport_disconnect_adjustment (GtkViewport *viewport,
}
static void
-gtk_viewport_finalize (GObject *object)
+gtk_viewport_destroy (GtkWidget *widget)
{
- GtkViewport *viewport = GTK_VIEWPORT (object);
+ GtkViewport *viewport = GTK_VIEWPORT (widget);
viewport_disconnect_adjustment (viewport, GTK_ORIENTATION_HORIZONTAL);
viewport_disconnect_adjustment (viewport, GTK_ORIENTATION_VERTICAL);
- G_OBJECT_CLASS (gtk_viewport_parent_class)->finalize (object);
+ GTK_WIDGET_CLASS (gtk_viewport_parent_class)->destroy (widget);
}
static void
-gtk_viewport_destroy (GtkObject *object)
+viewport_get_view_allocation (GtkViewport *viewport,
+ GtkAllocation *view_allocation)
{
- GtkViewport *viewport = GTK_VIEWPORT (object);
+ GtkViewportPrivate *priv = viewport->priv;
+ GtkWidget *widget = GTK_WIDGET (viewport);
+ GtkAllocation allocation;
+ GtkStyleContext *context;
+ GtkStateFlags state;
+ GtkBorder padding, border;
+ guint border_width;
- viewport_disconnect_adjustment (viewport, GTK_ORIENTATION_HORIZONTAL);
- viewport_disconnect_adjustment (viewport, GTK_ORIENTATION_VERTICAL);
+ gtk_widget_get_allocation (widget, &allocation);
+ border_width = gtk_container_get_border_width (GTK_CONTAINER (viewport));
+
+ view_allocation->x = 0;
+ view_allocation->y = 0;
+
+ context = gtk_widget_get_style_context (widget);
+ state = gtk_widget_get_state_flags (widget);
+ gtk_style_context_save (context);
+ gtk_style_context_add_class (context, GTK_STYLE_CLASS_FRAME);
+
+ gtk_style_context_get_padding (context, state, &padding);
+ gtk_style_context_get_border (context, state, &border);
+
+ gtk_style_context_restore (context);
+
+ if (priv->shadow_type != GTK_SHADOW_NONE)
+ {
+ view_allocation->x = border.left;
+ view_allocation->y = border.top;
+ }
- GTK_OBJECT_CLASS (gtk_viewport_parent_class)->destroy (object);
+ view_allocation->x += padding.left;
+ view_allocation->y += padding.top;
+ view_allocation->width = MAX (1, allocation.width - padding.left - padding.right - border_width * 2);
+ view_allocation->height = MAX (1, allocation.height - padding.top - padding.bottom - border_width * 2);
+
+ if (priv->shadow_type != GTK_SHADOW_NONE)
+ {
+ view_allocation->width = MAX (1, view_allocation->width - border.left - border.right);
+ view_allocation->height = MAX (1, view_allocation->height - border.top - border.bottom);
+ }
}
/**
* gtk_viewport_get_hadjustment:
* @viewport: a #GtkViewport.
- *
+ *
* Returns the horizontal adjustment of the viewport.
*
- * Return value: the horizontal adjustment of @viewport.
+ * Return value: (transfer none): the horizontal adjustment of @viewport.
+ *
+ * Deprecated: 3.0: Use gtk_scrollable_get_hadjustment()
**/
GtkAdjustment*
gtk_viewport_get_hadjustment (GtkViewport *viewport)
{
g_return_val_if_fail (GTK_IS_VIEWPORT (viewport), NULL);
- if (!viewport->hadjustment)
- gtk_viewport_set_hadjustment (viewport, NULL);
-
- return viewport->hadjustment;
+ return viewport->priv->hadjustment;
}
/**
*
* Returns the vertical adjustment of the viewport.
*
- * Return value: the vertical adjustment of @viewport.
+ * Return value: (transfer none): the vertical adjustment of @viewport.
+ *
+ * Deprecated: 3.0: Use gtk_scrollable_get_vadjustment()
**/
GtkAdjustment*
gtk_viewport_get_vadjustment (GtkViewport *viewport)
{
g_return_val_if_fail (GTK_IS_VIEWPORT (viewport), NULL);
- if (!viewport->vadjustment)
- gtk_viewport_set_vadjustment (viewport, NULL);
-
- return viewport->vadjustment;
+ return viewport->priv->vadjustment;
}
static void
-viewport_get_view_allocation (GtkViewport *viewport,
- GtkAllocation *view_allocation)
-{
- GtkWidget *widget = GTK_WIDGET (viewport);
- GtkAllocation *allocation = &widget->allocation;
- gint border_width = GTK_CONTAINER (viewport)->border_width;
-
- view_allocation->x = 0;
- view_allocation->y = 0;
-
- if (viewport->shadow_type != GTK_SHADOW_NONE)
- {
- view_allocation->x = widget->style->xthickness;
- view_allocation->y = widget->style->ythickness;
- }
-
- view_allocation->width = MAX (1, allocation->width - view_allocation->x * 2 - border_width * 2);
- view_allocation->height = MAX (1, allocation->height - view_allocation->y * 2 - border_width * 2);
-}
-
-static void
-viewport_reclamp_adjustment (GtkAdjustment *adjustment,
- gboolean *value_changed)
-{
- gdouble value = adjustment->value;
-
- value = CLAMP (value, 0, adjustment->upper - adjustment->page_size);
- if (value != adjustment->value)
- {
- adjustment->value = value;
- if (value_changed)
- *value_changed = TRUE;
- }
- else if (value_changed)
- *value_changed = FALSE;
-}
-
-static void
-viewport_set_hadjustment_values (GtkViewport *viewport,
- gboolean *value_changed)
+viewport_set_hadjustment_values (GtkViewport *viewport)
{
GtkBin *bin = GTK_BIN (viewport);
GtkAllocation view_allocation;
- GtkAdjustment *hadjustment = gtk_viewport_get_hadjustment (viewport);
- gdouble old_page_size;
- gdouble old_upper;
- gdouble old_value;
+ GtkAdjustment *hadjustment = viewport->priv->hadjustment;
+ GtkWidget *child;
+ gdouble upper, value;
viewport_get_view_allocation (viewport, &view_allocation);
- old_page_size = hadjustment->page_size;
- old_upper = hadjustment->upper;
- old_value = hadjustment->value;
- hadjustment->page_size = view_allocation.width;
- hadjustment->step_increment = view_allocation.width * 0.1;
- hadjustment->page_increment = view_allocation.width * 0.9;
-
- hadjustment->lower = 0;
-
- if (bin->child && gtk_widget_get_visible (bin->child))
+ child = gtk_bin_get_child (bin);
+ if (child && gtk_widget_get_visible (child))
{
- GtkRequisition child_requisition;
+ gint minimum_width, natural_width;
+ gint scroll_height;
- gtk_widget_get_child_requisition (bin->child, &child_requisition);
- hadjustment->upper = MAX (child_requisition.width, view_allocation.width);
+ if (viewport->priv->vscroll_policy == GTK_SCROLL_MINIMUM)
+ gtk_widget_get_preferred_height (child, &scroll_height, NULL);
+ else
+ gtk_widget_get_preferred_height (child, NULL, &scroll_height);
+
+ gtk_widget_get_preferred_width_for_height (child,
+ MAX (view_allocation.height, scroll_height),
+ &minimum_width,
+ &natural_width);
+
+ if (viewport->priv->hscroll_policy == GTK_SCROLL_MINIMUM)
+ upper = MAX (minimum_width, view_allocation.width);
+ else
+ upper = MAX (natural_width, view_allocation.width);
}
else
- hadjustment->upper = view_allocation.width;
+ upper = view_allocation.width;
- if (gtk_widget_get_direction (GTK_WIDGET (viewport)) == GTK_TEXT_DIR_RTL)
+ value = gtk_adjustment_get_value (hadjustment);
+ /* We clamp to the left in RTL mode */
+ if (gtk_widget_get_direction (GTK_WIDGET (viewport)) == GTK_TEXT_DIR_RTL)
{
- gdouble dist = old_upper - (old_value + old_page_size);
- hadjustment->value = hadjustment->upper - dist - hadjustment->page_size;
- viewport_reclamp_adjustment (hadjustment, value_changed);
- *value_changed = (old_value != hadjustment->value);
+ gdouble dist = gtk_adjustment_get_upper (hadjustment)
+ - value
+ - gtk_adjustment_get_page_size (hadjustment);
+ value = upper - dist - view_allocation.width;
}
- else
- viewport_reclamp_adjustment (hadjustment, value_changed);
+
+ gtk_adjustment_configure (hadjustment,
+ value,
+ 0,
+ upper,
+ view_allocation.width * 0.1,
+ view_allocation.width * 0.9,
+ view_allocation.width);
}
static void
-viewport_set_vadjustment_values (GtkViewport *viewport,
- gboolean *value_changed)
+viewport_set_vadjustment_values (GtkViewport *viewport)
{
GtkBin *bin = GTK_BIN (viewport);
GtkAllocation view_allocation;
- GtkAdjustment *vadjustment = gtk_viewport_get_vadjustment (viewport);
+ GtkAdjustment *vadjustment = viewport->priv->vadjustment;
+ GtkWidget *child;
+ gdouble upper;
viewport_get_view_allocation (viewport, &view_allocation);
- vadjustment->page_size = view_allocation.height;
- vadjustment->step_increment = view_allocation.height * 0.1;
- vadjustment->page_increment = view_allocation.height * 0.9;
-
- vadjustment->lower = 0;
-
- if (bin->child && gtk_widget_get_visible (bin->child))
+ child = gtk_bin_get_child (bin);
+ if (child && gtk_widget_get_visible (child))
{
- GtkRequisition child_requisition;
-
- gtk_widget_get_child_requisition (bin->child, &child_requisition);
- vadjustment->upper = MAX (child_requisition.height, view_allocation.height);
+ gint minimum_height, natural_height;
+ gint scroll_width;
+
+ if (viewport->priv->hscroll_policy == GTK_SCROLL_MINIMUM)
+ gtk_widget_get_preferred_width (child, &scroll_width, NULL);
+ else
+ gtk_widget_get_preferred_width (child, NULL, &scroll_width);
+
+ gtk_widget_get_preferred_height_for_width (child,
+ MAX (view_allocation.width, scroll_width),
+ &minimum_height,
+ &natural_height);
+
+ if (viewport->priv->vscroll_policy == GTK_SCROLL_MINIMUM)
+ upper = MAX (minimum_height, view_allocation.height);
+ else
+ upper = MAX (natural_height, view_allocation.height);
}
else
- vadjustment->upper = view_allocation.height;
-
- viewport_reclamp_adjustment (vadjustment, value_changed);
+ upper = view_allocation.height;
+
+ gtk_adjustment_configure (vadjustment,
+ gtk_adjustment_get_value (vadjustment),
+ 0,
+ upper,
+ view_allocation.height * 0.1,
+ view_allocation.height * 0.9,
+ view_allocation.height);
}
static void
GtkAdjustment *adjustment)
{
GtkAdjustment **adjustmentp = ADJUSTMENT_POINTER (viewport, orientation);
- gboolean value_changed;
if (adjustment && adjustment == *adjustmentp)
return;
if (!adjustment)
- adjustment = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0,
- 0.0, 0.0, 0.0));
+ adjustment = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
viewport_disconnect_adjustment (viewport, orientation);
*adjustmentp = adjustment;
g_object_ref_sink (adjustment);
if (orientation == GTK_ORIENTATION_HORIZONTAL)
- viewport_set_hadjustment_values (viewport, &value_changed);
+ viewport_set_hadjustment_values (viewport);
else
- viewport_set_vadjustment_values (viewport, &value_changed);
+ viewport_set_vadjustment_values (viewport);
g_signal_connect (adjustment, "value-changed",
G_CALLBACK (gtk_viewport_adjustment_value_changed),
viewport);
- gtk_adjustment_changed (adjustment);
-
- if (value_changed)
- gtk_adjustment_value_changed (adjustment);
- else
- gtk_viewport_adjustment_value_changed (adjustment, viewport);
+ gtk_viewport_adjustment_value_changed (adjustment, viewport);
}
/**
* @adjustment: (allow-none): a #GtkAdjustment.
*
* Sets the horizontal adjustment of the viewport.
+ *
+ * Deprecated: 3.0: Use gtk_scrollable_set_hadjustment()
**/
void
gtk_viewport_set_hadjustment (GtkViewport *viewport,
* @adjustment: (allow-none): a #GtkAdjustment.
*
* Sets the vertical adjustment of the viewport.
+ *
+ * Deprecated: 3.0: Use gtk_scrollable_set_vadjustment()
**/
void
gtk_viewport_set_vadjustment (GtkViewport *viewport,
g_object_notify (G_OBJECT (viewport), "vadjustment");
}
-static void
-gtk_viewport_set_scroll_adjustments (GtkViewport *viewport,
- GtkAdjustment *hadjustment,
- GtkAdjustment *vadjustment)
-{
- gtk_viewport_set_hadjustment (viewport, hadjustment);
- gtk_viewport_set_vadjustment (viewport, vadjustment);
-}
-
/**
* gtk_viewport_set_shadow_type:
* @viewport: a #GtkViewport.
gtk_viewport_set_shadow_type (GtkViewport *viewport,
GtkShadowType type)
{
+ GtkViewportPrivate *priv;
+ GtkAllocation allocation;
+ GtkWidget *widget;
+
g_return_if_fail (GTK_IS_VIEWPORT (viewport));
- if ((GtkShadowType) viewport->shadow_type != type)
+ widget = GTK_WIDGET (viewport);
+ priv = viewport->priv;
+
+ if ((GtkShadowType) priv->shadow_type != type)
{
- viewport->shadow_type = type;
+ priv->shadow_type = type;
- if (gtk_widget_get_visible (GTK_WIDGET (viewport)))
+ if (gtk_widget_get_visible (widget))
{
- gtk_widget_size_allocate (GTK_WIDGET (viewport), &(GTK_WIDGET (viewport)->allocation));
- gtk_widget_queue_draw (GTK_WIDGET (viewport));
+ gtk_widget_get_allocation (widget, &allocation);
+ gtk_widget_size_allocate (widget, &allocation);
+ gtk_widget_set_allocation (widget, &allocation);
+ gtk_widget_queue_draw (widget);
}
g_object_notify (G_OBJECT (viewport), "shadow-type");
*
* Gets the shadow type of the #GtkViewport. See
* gtk_viewport_set_shadow_type().
-
+ *
* Return value: the shadow type
**/
GtkShadowType
{
g_return_val_if_fail (GTK_IS_VIEWPORT (viewport), GTK_SHADOW_NONE);
- return viewport->shadow_type;
+ return viewport->priv->shadow_type;
}
/**
*
* Gets the bin window of the #GtkViewport.
*
- * Return value: a #GdkWindow
+ * Return value: (transfer none): a #GdkWindow
*
* Since: 2.20
**/
{
g_return_val_if_fail (GTK_IS_VIEWPORT (viewport), NULL);
- return viewport->bin_window;
+ return viewport->priv->bin_window;
+}
+
+/**
+ * gtk_viewport_get_view_window:
+ * @viewport: a #GtkViewport
+ *
+ * Gets the view window of the #GtkViewport.
+ *
+ * Return value: (transfer none): a #GdkWindow
+ *
+ * Since: 2.22
+ **/
+GdkWindow*
+gtk_viewport_get_view_window (GtkViewport *viewport)
+{
+ g_return_val_if_fail (GTK_IS_VIEWPORT (viewport), NULL);
+
+ return viewport->priv->view_window;
}
static void
gtk_viewport_realize (GtkWidget *widget)
{
GtkViewport *viewport = GTK_VIEWPORT (widget);
+ GtkViewportPrivate *priv = viewport->priv;
GtkBin *bin = GTK_BIN (widget);
- GtkAdjustment *hadjustment = gtk_viewport_get_hadjustment (viewport);
- GtkAdjustment *vadjustment = gtk_viewport_get_vadjustment (viewport);
- gint border_width = GTK_CONTAINER (widget)->border_width;
-
+ GtkAdjustment *hadjustment = priv->hadjustment;
+ GtkAdjustment *vadjustment = priv->vadjustment;
+ GtkAllocation allocation;
GtkAllocation view_allocation;
+ GtkStyleContext *context;
+ GtkWidget *child;
+ GdkWindow *window;
GdkWindowAttr attributes;
gint attributes_mask;
gint event_mask;
+ guint border_width;
+
+ border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
+
+ gtk_widget_set_realized (widget, TRUE);
- GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
+ gtk_widget_get_allocation (widget, &allocation);
- attributes.x = widget->allocation.x + border_width;
- attributes.y = widget->allocation.y + border_width;
- attributes.width = widget->allocation.width - border_width * 2;
- attributes.height = widget->allocation.height - border_width * 2;
+ attributes.x = allocation.x + border_width;
+ attributes.y = allocation.y + border_width;
+ attributes.width = allocation.width - border_width * 2;
+ attributes.height = allocation.height - border_width * 2;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (widget);
- attributes.colormap = gtk_widget_get_colormap (widget);
event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
- /* We select on button_press_mask so that button 4-5 scrolls are trapped.
- */
- attributes.event_mask = event_mask | GDK_BUTTON_PRESS_MASK;
- attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
+ attributes.event_mask = event_mask | GDK_SCROLL_MASK | GDK_TOUCH_MASK | GDK_SMOOTH_SCROLL_MASK;
+
+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
- widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
- &attributes, attributes_mask);
- gdk_window_set_user_data (widget->window, viewport);
+ window = gdk_window_new (gtk_widget_get_parent_window (widget),
+ &attributes, attributes_mask);
+ gtk_widget_set_window (widget, window);
+ gtk_widget_register_window (widget, window);
viewport_get_view_allocation (viewport, &view_allocation);
attributes.height = view_allocation.height;
attributes.event_mask = 0;
- viewport->view_window = gdk_window_new (widget->window, &attributes, attributes_mask);
- gdk_window_set_user_data (viewport->view_window, viewport);
+ priv->view_window = gdk_window_new (window,
+ &attributes, attributes_mask);
+ gtk_widget_register_window (widget, priv->view_window);
- gdk_window_set_back_pixmap (viewport->view_window, NULL, FALSE);
-
- attributes.x = - hadjustment->value;
- attributes.y = - vadjustment->value;
- attributes.width = hadjustment->upper;
- attributes.height = vadjustment->upper;
+ attributes.x = - gtk_adjustment_get_value (hadjustment);
+ attributes.y = - gtk_adjustment_get_value (vadjustment);
+ attributes.width = gtk_adjustment_get_upper (hadjustment);
+ attributes.height = gtk_adjustment_get_upper (vadjustment);
attributes.event_mask = event_mask;
- viewport->bin_window = gdk_window_new (viewport->view_window, &attributes, attributes_mask);
- gdk_window_set_user_data (viewport->bin_window, viewport);
+ priv->bin_window = gdk_window_new (priv->view_window, &attributes, attributes_mask);
+ gtk_widget_register_window (widget, priv->bin_window);
- if (bin->child)
- gtk_widget_set_parent_window (bin->child, viewport->bin_window);
+ child = gtk_bin_get_child (bin);
+ if (child)
+ gtk_widget_set_parent_window (child, priv->bin_window);
- widget->style = gtk_style_attach (widget->style, widget->window);
- gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
- gtk_style_set_background (widget->style, viewport->bin_window, GTK_STATE_NORMAL);
+ context = gtk_widget_get_style_context (widget);
+ gtk_style_context_set_background (context, window);
+ gtk_style_context_set_background (context, priv->bin_window);
- /* Call paint here to allow a theme to set the background without flashing
- */
- gtk_paint_flat_box(widget->style, viewport->bin_window, GTK_STATE_NORMAL,
- GTK_SHADOW_NONE,
- NULL, widget, "viewportbin",
- 0, 0, -1, -1);
-
- gdk_window_show (viewport->bin_window);
- gdk_window_show (viewport->view_window);
+ gdk_window_show (priv->bin_window);
+ gdk_window_show (priv->view_window);
}
static void
gtk_viewport_unrealize (GtkWidget *widget)
{
GtkViewport *viewport = GTK_VIEWPORT (widget);
+ GtkViewportPrivate *priv = viewport->priv;
- gdk_window_set_user_data (viewport->view_window, NULL);
- gdk_window_destroy (viewport->view_window);
- viewport->view_window = NULL;
+ gtk_widget_unregister_window (widget, priv->view_window);
+ gdk_window_destroy (priv->view_window);
+ priv->view_window = NULL;
- gdk_window_set_user_data (viewport->bin_window, NULL);
- gdk_window_destroy (viewport->bin_window);
- viewport->bin_window = NULL;
+ gtk_widget_unregister_window (widget, priv->bin_window);
+ gdk_window_destroy (priv->bin_window);
+ priv->bin_window = NULL;
GTK_WIDGET_CLASS (gtk_viewport_parent_class)->unrealize (widget);
}
-static void
-gtk_viewport_paint (GtkWidget *widget,
- GdkRectangle *area)
+static gint
+gtk_viewport_draw (GtkWidget *widget,
+ cairo_t *cr)
{
- if (gtk_widget_is_drawable (widget))
- {
- GtkViewport *viewport = GTK_VIEWPORT (widget);
+ GtkViewport *viewport = GTK_VIEWPORT (widget);
+ GtkViewportPrivate *priv = viewport->priv;
+ GtkStyleContext *context;
+ int x, y;
- gtk_paint_shadow (widget->style, widget->window,
- GTK_STATE_NORMAL, viewport->shadow_type,
- area, widget, "viewport",
- 0, 0, -1, -1);
- }
-}
+ context = gtk_widget_get_style_context (widget);
-static gint
-gtk_viewport_expose (GtkWidget *widget,
- GdkEventExpose *event)
-{
- GtkViewport *viewport;
+ if (gtk_cairo_should_draw_window (cr, gtk_widget_get_window (widget)) &&
+ priv->shadow_type != GTK_SHADOW_NONE)
+ {
+ gtk_style_context_save (context);
+ gtk_style_context_add_class (context, GTK_STYLE_CLASS_FRAME);
+
+ gtk_render_frame (context, cr, 0, 0,
+ gdk_window_get_width (gtk_widget_get_window (widget)),
+ gdk_window_get_height (gtk_widget_get_window (widget)));
- if (gtk_widget_is_drawable (widget))
+ gtk_style_context_restore (context);
+ }
+
+ if (gtk_cairo_should_draw_window (cr, priv->view_window))
{
- viewport = GTK_VIEWPORT (widget);
+ /* This is a cute hack to ensure the contents of bin_window are
+ * restricted to where they are visible. We only need to do this
+ * clipping when called via gtk_widget_draw() and not in expose
+ * events. And when that happens every window (including this one)
+ * should be drawn.
+ */
+ gdk_window_get_position (priv->view_window, &x, &y);
+ cairo_rectangle (cr, x, y,
+ gdk_window_get_width (priv->view_window),
+ gdk_window_get_height (priv->view_window));
+ cairo_clip (cr);
+ }
- if (event->window == widget->window)
- gtk_viewport_paint (widget, &event->area);
- else if (event->window == viewport->bin_window)
- {
- gtk_paint_flat_box(widget->style, viewport->bin_window,
- GTK_STATE_NORMAL, GTK_SHADOW_NONE,
- &event->area, widget, "viewportbin",
- 0, 0, -1, -1);
+ if (gtk_cairo_should_draw_window (cr, priv->bin_window))
+ {
+ gdk_window_get_position (priv->bin_window, &x, &y);
+ gtk_render_background (context, cr, x, y,
+ gdk_window_get_width (priv->bin_window),
+ gdk_window_get_height (priv->bin_window));
- GTK_WIDGET_CLASS (gtk_viewport_parent_class)->expose_event (widget, event);
- }
+ GTK_WIDGET_CLASS (gtk_viewport_parent_class)->draw (widget, cr);
}
return FALSE;
GtkWidget *child)
{
GtkBin *bin = GTK_BIN (container);
+ GtkViewport *viewport = GTK_VIEWPORT (bin);
+ GtkViewportPrivate *priv = viewport->priv;
- g_return_if_fail (bin->child == NULL);
+ g_return_if_fail (gtk_bin_get_child (bin) == NULL);
- gtk_widget_set_parent_window (child, GTK_VIEWPORT (bin)->bin_window);
+ gtk_widget_set_parent_window (child, priv->bin_window);
GTK_CONTAINER_CLASS (gtk_viewport_parent_class)->add (container, child);
}
-static void
-gtk_viewport_size_request (GtkWidget *widget,
- GtkRequisition *requisition)
-{
- GtkBin *bin = GTK_BIN (widget);
- GtkRequisition child_requisition;
-
- requisition->width = GTK_CONTAINER (widget)->border_width;
-
- requisition->height = GTK_CONTAINER (widget)->border_width;
-
- if (GTK_VIEWPORT (widget)->shadow_type != GTK_SHADOW_NONE)
- {
- requisition->width += 2 * widget->style->xthickness;
- requisition->height += 2 * widget->style->ythickness;
- }
-
- if (bin->child && gtk_widget_get_visible (bin->child))
- {
- gtk_widget_size_request (bin->child, &child_requisition);
- requisition->width += child_requisition.width;
- requisition->height += child_requisition.height;
- }
-}
-
static void
gtk_viewport_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
+ GtkAllocation widget_allocation;
GtkViewport *viewport = GTK_VIEWPORT (widget);
+ GtkViewportPrivate *priv = viewport->priv;
GtkBin *bin = GTK_BIN (widget);
- gint border_width = GTK_CONTAINER (widget)->border_width;
- gboolean hadjustment_value_changed, vadjustment_value_changed;
- GtkAdjustment *hadjustment = gtk_viewport_get_hadjustment (viewport);
- GtkAdjustment *vadjustment = gtk_viewport_get_vadjustment (viewport);
+ guint border_width;
+ GtkAdjustment *hadjustment = priv->hadjustment;
+ GtkAdjustment *vadjustment = priv->vadjustment;
GtkAllocation child_allocation;
+ GtkWidget *child;
+
+ border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
/* If our size changed, and we have a shadow, queue a redraw on widget->window to
* redraw the shadow correctly.
*/
- if (GTK_WIDGET_MAPPED (widget) &&
- viewport->shadow_type != GTK_SHADOW_NONE &&
- (widget->allocation.width != allocation->width ||
- widget->allocation.height != allocation->height))
- gdk_window_invalidate_rect (widget->window, NULL, FALSE);
-
- widget->allocation = *allocation;
-
- viewport_set_hadjustment_values (viewport, &hadjustment_value_changed);
- viewport_set_vadjustment_values (viewport, &vadjustment_value_changed);
+ gtk_widget_get_allocation (widget, &widget_allocation);
+ if (gtk_widget_get_mapped (widget) &&
+ priv->shadow_type != GTK_SHADOW_NONE &&
+ (widget_allocation.width != allocation->width ||
+ widget_allocation.height != allocation->height))
+ gdk_window_invalidate_rect (gtk_widget_get_window (widget), NULL, FALSE);
+
+ gtk_widget_set_allocation (widget, allocation);
+
+ g_object_freeze_notify (G_OBJECT (hadjustment));
+ g_object_freeze_notify (G_OBJECT (vadjustment));
+
+ viewport_set_hadjustment_values (viewport);
+ viewport_set_vadjustment_values (viewport);
child_allocation.x = 0;
child_allocation.y = 0;
- child_allocation.width = hadjustment->upper;
- child_allocation.height = vadjustment->upper;
- if (GTK_WIDGET_REALIZED (widget))
+ child_allocation.width = gtk_adjustment_get_upper (hadjustment);
+ child_allocation.height = gtk_adjustment_get_upper (vadjustment);
+ if (gtk_widget_get_realized (widget))
{
GtkAllocation view_allocation;
- gdk_window_move_resize (widget->window,
+
+ gdk_window_move_resize (gtk_widget_get_window (widget),
allocation->x + border_width,
allocation->y + border_width,
allocation->width - border_width * 2,
allocation->height - border_width * 2);
viewport_get_view_allocation (viewport, &view_allocation);
- gdk_window_move_resize (viewport->view_window,
+ gdk_window_move_resize (priv->view_window,
view_allocation.x,
view_allocation.y,
view_allocation.width,
view_allocation.height);
- gdk_window_move_resize (viewport->bin_window,
- - hadjustment->value,
- - vadjustment->value,
+ gdk_window_move_resize (priv->bin_window,
+ - gtk_adjustment_get_value (hadjustment),
+ - gtk_adjustment_get_value (vadjustment),
child_allocation.width,
child_allocation.height);
}
- if (bin->child && gtk_widget_get_visible (bin->child))
- gtk_widget_size_allocate (bin->child, &child_allocation);
-
- gtk_adjustment_changed (hadjustment);
- gtk_adjustment_changed (vadjustment);
- if (hadjustment_value_changed)
- gtk_adjustment_value_changed (hadjustment);
- if (vadjustment_value_changed)
- gtk_adjustment_value_changed (vadjustment);
+
+ child = gtk_bin_get_child (bin);
+ if (child && gtk_widget_get_visible (child))
+ gtk_widget_size_allocate (child, &child_allocation);
+
+ g_object_thaw_notify (G_OBJECT (hadjustment));
+ g_object_thaw_notify (G_OBJECT (vadjustment));
}
static void
gpointer data)
{
GtkViewport *viewport = GTK_VIEWPORT (data);
+ GtkViewportPrivate *priv = viewport->priv;
GtkBin *bin = GTK_BIN (data);
+ GtkWidget *child;
- if (bin->child && gtk_widget_get_visible (bin->child) &&
- GTK_WIDGET_REALIZED (viewport))
+ child = gtk_bin_get_child (bin);
+ if (child && gtk_widget_get_visible (child) &&
+ gtk_widget_get_realized (GTK_WIDGET (viewport)))
{
- GtkAdjustment *hadjustment = gtk_viewport_get_hadjustment (viewport);
- GtkAdjustment *vadjustment = gtk_viewport_get_vadjustment (viewport);
+ GtkAdjustment *hadjustment = priv->hadjustment;
+ GtkAdjustment *vadjustment = priv->vadjustment;
gint old_x, old_y;
gint new_x, new_y;
- gdk_window_get_position (viewport->bin_window, &old_x, &old_y);
- new_x = - hadjustment->value;
- new_y = - vadjustment->value;
+ gdk_window_get_position (priv->bin_window, &old_x, &old_y);
+ new_x = - gtk_adjustment_get_value (hadjustment);
+ new_y = - gtk_adjustment_get_value (vadjustment);
if (new_x != old_x || new_y != old_y)
- {
- gdk_window_move (viewport->bin_window, new_x, new_y);
- gdk_window_process_updates (viewport->bin_window, TRUE);
- }
+ gdk_window_move (priv->bin_window, new_x, new_y);
}
}
static void
-gtk_viewport_style_set (GtkWidget *widget,
- GtkStyle *previous_style)
+gtk_viewport_style_updated (GtkWidget *widget)
{
- if (GTK_WIDGET_REALIZED (widget) &&
+ GTK_WIDGET_CLASS (gtk_viewport_parent_class)->style_updated (widget);
+
+ if (gtk_widget_get_realized (widget) &&
gtk_widget_get_has_window (widget))
{
- GtkViewport *viewport = GTK_VIEWPORT (widget);
+ GtkStyleContext *context;
+ GtkViewport *viewport = GTK_VIEWPORT (widget);
+ GtkViewportPrivate *priv = viewport->priv;
- gtk_style_set_background (widget->style, viewport->bin_window, GTK_STATE_NORMAL);
- gtk_style_set_background (widget->style, widget->window, widget->state);
+ context = gtk_widget_get_style_context (widget);
+ gtk_style_context_set_background (context, priv->bin_window);
+ gtk_style_context_set_background (context, gtk_widget_get_window (widget));
}
}
-#define __GTK_VIEWPORT_C__
-#include "gtkaliasdef.c"
+
+static void
+gtk_viewport_get_preferred_size (GtkWidget *widget,
+ GtkOrientation orientation,
+ gint *minimum_size,
+ gint *natural_size)
+{
+ GtkViewport *viewport = GTK_VIEWPORT (widget);
+ GtkViewportPrivate *priv = viewport->priv;
+ GtkStyleContext *context;
+ GtkStateFlags state;
+ GtkBorder padding, border;
+ GtkWidget *child;
+ gint child_min, child_nat;
+ gint minimum, natural;
+
+ child = gtk_bin_get_child (GTK_BIN (widget));
+
+ /* XXX This should probably be (border_width * 2); but GTK+ has
+ * been doing this with a single border for a while now...
+ */
+ minimum = gtk_container_get_border_width (GTK_CONTAINER (widget));
+
+ context = gtk_widget_get_style_context (GTK_WIDGET (widget));
+ state = gtk_widget_get_state_flags (GTK_WIDGET (widget));
+ gtk_style_context_get_padding (context, state, &padding);
+
+ if (priv->shadow_type != GTK_SHADOW_NONE)
+ {
+ gtk_style_context_get_border (context, state, &border);
+
+ if (orientation == GTK_ORIENTATION_HORIZONTAL)
+ minimum += border.left + border.right;
+ else
+ minimum += border.top + border.bottom;
+ }
+
+ if (orientation == GTK_ORIENTATION_HORIZONTAL)
+ minimum += padding.left + padding.right;
+ else
+ minimum += padding.top + padding.bottom;
+
+ natural = minimum;
+
+ if (child && gtk_widget_get_visible (child))
+ {
+ if (orientation == GTK_ORIENTATION_HORIZONTAL)
+ gtk_widget_get_preferred_width (child, &child_min, &child_nat);
+ else
+ gtk_widget_get_preferred_height (child, &child_min, &child_nat);
+
+ minimum += child_min;
+ natural += child_nat;
+ }
+
+ if (minimum_size)
+ *minimum_size = minimum;
+
+ if (natural_size)
+ *natural_size = natural;
+}
+
+static void
+gtk_viewport_get_preferred_width (GtkWidget *widget,
+ gint *minimum_size,
+ gint *natural_size)
+{
+ gtk_viewport_get_preferred_size (widget, GTK_ORIENTATION_HORIZONTAL, minimum_size, natural_size);
+}
+
+static void
+gtk_viewport_get_preferred_height (GtkWidget *widget,
+ gint *minimum_size,
+ gint *natural_size)
+{
+ gtk_viewport_get_preferred_size (widget, GTK_ORIENTATION_VERTICAL, minimum_size, natural_size);
+}
projects / ~andy / gtk / blobdiff