* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
+
+/*
+ * Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
+ * file for a list of people on the GTK+ Team. See the ChangeLog
+ * files for a list of changes. These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
+ */
+
#include "gtksignal.h"
#include "gtkviewport.h"
+enum {
+ ARG_0,
+ ARG_HADJUSTMENT,
+ ARG_VADJUSTMENT,
+ ARG_SHADOW_TYPE
+};
+
static void gtk_viewport_class_init (GtkViewportClass *klass);
static void gtk_viewport_init (GtkViewport *viewport);
+static void gtk_viewport_destroy (GtkObject *object);
static void gtk_viewport_finalize (GtkObject *object);
+static void gtk_viewport_set_arg (GtkObject *object,
+ GtkArg *arg,
+ guint arg_id);
+static void gtk_viewport_get_arg (GtkObject *object,
+ GtkArg *arg,
+ guint arg_id);
+static void gtk_viewport_set_scroll_adjustments (GtkViewport *viewport,
+ GtkAdjustment *hadjustment,
+ GtkAdjustment *vadjustment);
static void gtk_viewport_map (GtkWidget *widget);
static void gtk_viewport_unmap (GtkWidget *widget);
static void gtk_viewport_realize (GtkWidget *widget);
GtkRequisition *requisition);
static void gtk_viewport_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
-static gint gtk_viewport_need_resize (GtkContainer *container);
static void gtk_viewport_adjustment_changed (GtkAdjustment *adjustment,
gpointer data);
static void gtk_viewport_adjustment_value_changed (GtkAdjustment *adjustment,
gpointer data);
+static void gtk_viewport_style_set (GtkWidget *widget,
+ GtkStyle *previous_style);
static GtkBinClass *parent_class;
-guint
-gtk_viewport_get_type ()
+GtkType
+gtk_viewport_get_type (void)
{
- static guint viewport_type = 0;
+ static GtkType viewport_type = 0;
if (!viewport_type)
{
- GtkTypeInfo viewport_info =
+ static const GtkTypeInfo viewport_info =
{
"GtkViewport",
sizeof (GtkViewport),
sizeof (GtkViewportClass),
(GtkClassInitFunc) gtk_viewport_class_init,
(GtkObjectInitFunc) gtk_viewport_init,
- (GtkArgSetFunc) NULL,
- (GtkArgGetFunc) NULL,
+ /* reserved_1 */ NULL,
+ /* reserved_2 */ NULL,
+ (GtkClassInitFunc) NULL,
};
- viewport_type = gtk_type_unique (gtk_bin_get_type (), &viewport_info);
+ viewport_type = gtk_type_unique (GTK_TYPE_BIN, &viewport_info);
}
return viewport_type;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
container_class = (GtkContainerClass*) class;
- parent_class = (GtkBinClass*) gtk_type_class (gtk_bin_get_type ());
-
+ parent_class = (GtkBinClass*) gtk_type_class (GTK_TYPE_BIN);
+
+ gtk_object_add_arg_type ("GtkViewport::hadjustment",
+ GTK_TYPE_ADJUSTMENT,
+ GTK_ARG_READWRITE | GTK_ARG_CONSTRUCT,
+ ARG_HADJUSTMENT);
+ gtk_object_add_arg_type ("GtkViewport::vadjustment",
+ GTK_TYPE_ADJUSTMENT,
+ GTK_ARG_READWRITE | GTK_ARG_CONSTRUCT,
+ ARG_VADJUSTMENT);
+ gtk_object_add_arg_type ("GtkViewport::shadow_type",
+ GTK_TYPE_SHADOW_TYPE,
+ GTK_ARG_READWRITE,
+ ARG_SHADOW_TYPE);
+
+ object_class->set_arg = gtk_viewport_set_arg;
+ object_class->get_arg = gtk_viewport_get_arg;
+ object_class->destroy = gtk_viewport_destroy;
object_class->finalize = gtk_viewport_finalize;
widget_class->map = gtk_viewport_map;
widget_class->expose_event = gtk_viewport_expose;
widget_class->size_request = gtk_viewport_size_request;
widget_class->size_allocate = gtk_viewport_size_allocate;
-
+ widget_class->style_set = gtk_viewport_style_set;
+
+ widget_class->set_scroll_adjustments_signal =
+ gtk_signal_new ("set_scroll_adjustments",
+ GTK_RUN_LAST,
+ object_class->type,
+ GTK_SIGNAL_OFFSET (GtkViewportClass, set_scroll_adjustments),
+ gtk_marshal_NONE__POINTER_POINTER,
+ GTK_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
+
container_class->add = gtk_viewport_add;
- container_class->need_resize = gtk_viewport_need_resize;
+
+ class->set_scroll_adjustments = gtk_viewport_set_scroll_adjustments;
+}
+
+static void
+gtk_viewport_set_arg (GtkObject *object,
+ GtkArg *arg,
+ guint arg_id)
+{
+ GtkViewport *viewport;
+
+ viewport = GTK_VIEWPORT (object);
+
+ switch (arg_id)
+ {
+ case ARG_HADJUSTMENT:
+ gtk_viewport_set_hadjustment (viewport, GTK_VALUE_POINTER (*arg));
+ break;
+ case ARG_VADJUSTMENT:
+ gtk_viewport_set_vadjustment (viewport, GTK_VALUE_POINTER (*arg));
+ break;
+ case ARG_SHADOW_TYPE:
+ gtk_viewport_set_shadow_type (viewport, GTK_VALUE_ENUM (*arg));
+ break;
+ default:
+ break;
+ }
+}
+
+static void
+gtk_viewport_get_arg (GtkObject *object,
+ GtkArg *arg,
+ guint arg_id)
+{
+ GtkViewport *viewport;
+
+ viewport = GTK_VIEWPORT (object);
+
+ switch (arg_id)
+ {
+ case ARG_HADJUSTMENT:
+ GTK_VALUE_POINTER (*arg) = viewport->hadjustment;
+ break;
+ case ARG_VADJUSTMENT:
+ GTK_VALUE_POINTER (*arg) = viewport->vadjustment;
+ break;
+ case ARG_SHADOW_TYPE:
+ GTK_VALUE_ENUM (*arg) = viewport->shadow_type;
+ break;
+ default:
+ arg->type = GTK_TYPE_INVALID;
+ break;
+ }
}
static void
gtk_viewport_init (GtkViewport *viewport)
{
GTK_WIDGET_UNSET_FLAGS (viewport, GTK_NO_WINDOW);
- GTK_WIDGET_SET_FLAGS (viewport, GTK_BASIC);
+ 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;
gtk_viewport_new (GtkAdjustment *hadjustment,
GtkAdjustment *vadjustment)
{
- GtkViewport *viewport;
+ GtkWidget *viewport;
- viewport = gtk_type_new (gtk_viewport_get_type ());
+ viewport = gtk_widget_new (GTK_TYPE_VIEWPORT,
+ "hadjustment", hadjustment,
+ "vadjustment", vadjustment,
+ NULL);
- if (!hadjustment)
- hadjustment = (GtkAdjustment*) gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
+ return viewport;
+}
- if (!vadjustment)
- vadjustment = (GtkAdjustment*) gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
+static void
+gtk_viewport_destroy (GtkObject *object)
+{
+ GtkViewport *viewport = GTK_VIEWPORT (object);
- gtk_viewport_set_hadjustment (viewport, hadjustment);
- gtk_viewport_set_vadjustment (viewport, vadjustment);
+ if (viewport->hadjustment)
+ gtk_signal_disconnect_by_data (GTK_OBJECT (viewport->hadjustment),
+ viewport);
+ if (viewport->vadjustment)
+ gtk_signal_disconnect_by_data (GTK_OBJECT (viewport->vadjustment),
+ viewport);
- return GTK_WIDGET (viewport);
+ GTK_OBJECT_CLASS(parent_class)->destroy (object);
}
static void
{
g_return_if_fail (viewport != NULL);
g_return_if_fail (GTK_IS_VIEWPORT (viewport));
- g_return_if_fail (adjustment != NULL);
+ if (adjustment)
+ g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
- if (viewport->hadjustment != adjustment)
+ if (viewport->hadjustment && viewport->hadjustment != adjustment)
{
- if (viewport->hadjustment)
- {
- gtk_signal_disconnect_by_data (GTK_OBJECT (viewport->hadjustment),
- (gpointer) viewport);
- gtk_object_unref (GTK_OBJECT (viewport->hadjustment));
- }
+ gtk_signal_disconnect_by_data (GTK_OBJECT (viewport->hadjustment),
+ (gpointer) viewport);
+ gtk_object_unref (GTK_OBJECT (viewport->hadjustment));
+ }
+
+ if (!adjustment)
+ adjustment = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0,
+ 0.0, 0.0, 0.0));
+ if (viewport->hadjustment != adjustment)
+ {
viewport->hadjustment = adjustment;
gtk_object_ref (GTK_OBJECT (viewport->hadjustment));
gtk_object_sink (GTK_OBJECT (viewport->hadjustment));
(GtkSignalFunc) gtk_viewport_adjustment_changed,
(gpointer) viewport);
gtk_signal_connect (GTK_OBJECT (adjustment), "value_changed",
- (GtkSignalFunc)gtk_viewport_adjustment_value_changed,
+ (GtkSignalFunc) gtk_viewport_adjustment_value_changed,
(gpointer) viewport);
- gtk_viewport_adjustment_changed (adjustment, (gpointer) viewport);
+ gtk_viewport_adjustment_changed (adjustment, viewport);
}
}
{
g_return_if_fail (viewport != NULL);
g_return_if_fail (GTK_IS_VIEWPORT (viewport));
- g_return_if_fail (adjustment != NULL);
+ if (adjustment)
+ g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
- if (viewport->vadjustment != adjustment)
+ if (viewport->vadjustment && viewport->vadjustment != adjustment)
{
- if (viewport->vadjustment)
- {
- gtk_signal_disconnect_by_data (GTK_OBJECT (viewport->vadjustment),
- (gpointer) viewport);
- gtk_object_unref (GTK_OBJECT (viewport->vadjustment));
- }
+ gtk_signal_disconnect_by_data (GTK_OBJECT (viewport->vadjustment),
+ (gpointer) viewport);
+ gtk_object_unref (GTK_OBJECT (viewport->vadjustment));
+ }
+
+ if (!adjustment)
+ adjustment = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0,
+ 0.0, 0.0, 0.0));
+ if (viewport->vadjustment != adjustment)
+ {
viewport->vadjustment = adjustment;
gtk_object_ref (GTK_OBJECT (viewport->vadjustment));
gtk_object_sink (GTK_OBJECT (viewport->vadjustment));
(GtkSignalFunc) gtk_viewport_adjustment_changed,
(gpointer) viewport);
gtk_signal_connect (GTK_OBJECT (adjustment), "value_changed",
- (GtkSignalFunc)gtk_viewport_adjustment_value_changed,
+ (GtkSignalFunc) gtk_viewport_adjustment_value_changed,
(gpointer) viewport);
- gtk_viewport_adjustment_changed (adjustment, (gpointer) viewport);
+ gtk_viewport_adjustment_changed (adjustment, viewport);
}
}
+static void
+gtk_viewport_set_scroll_adjustments (GtkViewport *viewport,
+ GtkAdjustment *hadjustment,
+ GtkAdjustment *vadjustment)
+{
+ if (viewport->hadjustment != hadjustment)
+ gtk_viewport_set_hadjustment (viewport, hadjustment);
+ if (viewport->vadjustment != vadjustment)
+ gtk_viewport_set_vadjustment (viewport, vadjustment);
+}
+
void
gtk_viewport_set_shadow_type (GtkViewport *viewport,
GtkShadowType type)
GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
bin = GTK_BIN (widget);
- gdk_window_show (widget->window);
-
if (bin->child &&
GTK_WIDGET_VISIBLE (bin->child) &&
!GTK_WIDGET_MAPPED (bin->child))
gtk_widget_map (bin->child);
+
+ gdk_window_show (widget->window);
}
static void
attributes.colormap = gtk_widget_get_colormap (widget);
event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
- attributes.event_mask = event_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.y = 0;
}
- attributes.width = MAX (1, widget->allocation.width - attributes.x * 2 - border_width * 2);
- attributes.height = MAX (1, widget->allocation.height - attributes.y * 2 - border_width * 2);
+ attributes.width = MAX (1, (gint)widget->allocation.width - attributes.x * 2 - border_width * 2);
+ attributes.height = MAX (1, (gint)widget->allocation.height - attributes.y * 2 - border_width * 2);
attributes.event_mask = 0;
viewport->view_window = gdk_window_new (widget->window, &attributes, attributes_mask);
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);
-
+
+ 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);
}
gtk_viewport_paint (widget, &tmp_area);
+ tmp_area.x += viewport->hadjustment->value - widget->style->klass->xthickness;
+ tmp_area.y += viewport->vadjustment->value - widget->style->klass->ythickness;
+
+ gtk_paint_flat_box(widget->style, viewport->bin_window,
+ GTK_STATE_NORMAL, GTK_SHADOW_NONE,
+ &tmp_area, widget, "viewportbin",
+ 0, 0, -1, -1);
+
if (bin->child)
{
- tmp_area.x += viewport->hadjustment->value - widget->style->klass->xthickness;
- tmp_area.y += viewport->vadjustment->value - widget->style->klass->ythickness;
-
if (gtk_widget_intersect (bin->child, &tmp_area, &child_area))
gtk_widget_draw (bin->child, &child_area);
}
if (event->window == widget->window)
gtk_viewport_paint (widget, &event->area);
+ else if (event->window == viewport->bin_window)
+ {
+ child_event = *event;
+
+ gtk_paint_flat_box(widget->style, viewport->bin_window,
+ GTK_STATE_NORMAL, GTK_SHADOW_NONE,
+ &event->area, widget, "viewportbin",
+ 0, 0, -1, -1);
+
+ if ((bin->child != NULL) &&
+ GTK_WIDGET_NO_WINDOW (bin->child) &&
+ gtk_widget_intersect (bin->child, &event->area, &child_event.area))
+ gtk_widget_event (bin->child, (GdkEvent*) &child_event);
+ }
+
- child_event = *event;
- if ((event->window == viewport->bin_window) &&
- (bin->child != NULL) &&
- GTK_WIDGET_NO_WINDOW (bin->child) &&
- gtk_widget_intersect (bin->child, &event->area, &child_event.area))
- gtk_widget_event (bin->child, (GdkEvent*) &child_event);
}
return FALSE;
static void
gtk_viewport_add (GtkContainer *container,
- GtkWidget *widget)
+ GtkWidget *child)
{
GtkBin *bin;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_VIEWPORT (container));
- g_return_if_fail (widget != NULL);
+ g_return_if_fail (child != NULL);
bin = GTK_BIN (container);
+ g_return_if_fail (bin->child == NULL);
- if (!bin->child)
- {
- gtk_widget_set_parent (widget, GTK_WIDGET (container));
- gtk_widget_set_parent_window (widget, GTK_VIEWPORT (container)->bin_window);
- if (GTK_WIDGET_VISIBLE (widget))
- {
- if (GTK_WIDGET_MAPPED (widget->parent) &&
- !GTK_WIDGET_MAPPED (widget))
- gtk_widget_map (widget);
- }
-
- bin->child = widget;
+ gtk_widget_set_parent_window (child, GTK_VIEWPORT (bin)->bin_window);
- if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (container))
- gtk_widget_queue_resize (widget);
- }
+ GTK_CONTAINER_CLASS (parent_class)->add (container, child);
}
static void
{
GtkViewport *viewport;
GtkBin *bin;
+ GtkRequisition child_requisition;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_VIEWPORT (widget));
GTK_WIDGET (widget)->style->klass->ythickness) * 2 + 5;
if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
- gtk_widget_size_request (bin->child, &bin->child->requisition);
+ {
+ gtk_widget_size_request (bin->child, &child_requisition);
+ requisition->width += child_requisition.width;
+ requisition->height += child_requisition.height;
+ }
}
static void
if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
{
+ GtkRequisition child_requisition;
+ gtk_widget_get_child_requisition (bin->child, &child_requisition);
+
viewport->hadjustment->lower = 0;
- viewport->hadjustment->upper = MAX (bin->child->requisition.width,
+ viewport->hadjustment->upper = MAX (child_requisition.width,
child_allocation.width);
hval = CLAMP (hval, 0,
viewport->hadjustment->page_size);
viewport->vadjustment->lower = 0;
- viewport->vadjustment->upper = MAX (bin->child->requisition.height,
+ viewport->vadjustment->upper = MAX (child_requisition.height,
child_allocation.height);
vval = CLAMP (vval, 0,
child_allocation.width = viewport->hadjustment->upper;
child_allocation.height = viewport->vadjustment->upper;
- if (!GTK_WIDGET_REALIZED (widget))
- gtk_widget_realize (widget);
-
- gdk_window_resize (viewport->bin_window,
- child_allocation.width,
- child_allocation.height);
+ if (GTK_WIDGET_REALIZED (widget))
+ gdk_window_resize (viewport->bin_window,
+ child_allocation.width,
+ child_allocation.height);
child_allocation.x = 0;
child_allocation.y = 0;
}
}
-static gint
-gtk_viewport_need_resize (GtkContainer *container)
-{
- GtkBin *bin;
-
- g_return_val_if_fail (container != NULL, FALSE);
- g_return_val_if_fail (GTK_IS_VIEWPORT (container), FALSE);
-
- if (GTK_WIDGET_REALIZED (container))
- {
- bin = GTK_BIN (container);
-
- gtk_widget_size_request (bin->child, &bin->child->requisition);
-
- gtk_widget_size_allocate (GTK_WIDGET (container),
- &(GTK_WIDGET (container)->allocation));
- }
-
- return FALSE;
-}
-
static void
gtk_viewport_adjustment_changed (GtkAdjustment *adjustment,
gpointer data)
GtkViewport *viewport;
GtkBin *bin;
GtkAllocation child_allocation;
- gint width, height;
g_return_if_fail (adjustment != NULL);
g_return_if_fail (data != NULL);
if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
{
- gdk_window_get_size (viewport->view_window, &width, &height);
-
child_allocation.x = 0;
child_allocation.y = 0;
child_allocation.y);
}
}
+
+static void
+gtk_viewport_style_set (GtkWidget *widget,
+ GtkStyle *previous_style)
+{
+ GtkViewport *viewport;
+
+ if (GTK_WIDGET_REALIZED (widget) &&
+ !GTK_WIDGET_NO_WINDOW (widget))
+ {
+ viewport = GTK_VIEWPORT (widget);
+
+ gtk_style_set_background (widget->style, viewport->bin_window, GTK_STATE_NORMAL);
+ gtk_style_set_background (widget->style, widget->window, widget->state);
+ }
+}
projects / ~andy / gtk / blobdiff