Amebis/wxWidgets
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
d02af7bbb9848f660bb291a833a892cc5f20cda7
wxWidgets/src/gtk/win_gtk.c
Jouk Jansen d02af7bbb9 Committing in . 
Modified Files:
 	wxWindows/include/wx/gtk/app.h wxWindows/lib/vms_gtk.opt
 	wxWindows/samples/minimal/descrip.mms
 	wxWindows/src/common/descrip.mms
 	wxWindows/src/generic/colrdlgg.cpp
 	wxWindows/src/generic/descrip.mms
 	wxWindows/src/gtk/dcclient.cpp wxWindows/src/gtk/descrip.mms
 	wxWindows/src/gtk/filedlg.cpp wxWindows/src/gtk/fontdlg.cpp
 	wxWindows/src/gtk/frame.cpp wxWindows/src/gtk/listbox.cpp
 	wxWindows/src/gtk/tbargtk.cpp wxWindows/src/gtk/win_gtk.c
 	wxWindows/src/gtk/window.cpp wxWindows/src/unix/descrip.mms

Patches for wxGTK for VMS
----------------------------------------------------------------------


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@8011 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2000-08-10 13:24:55 +00:00

1266 lines
34 KiB
C
Raw Blame History

/* ///////////////////////////////////////////////////////////////////////////
// Name: win_gtk.c
// Purpose: Native GTK+ widget for wxWindows, based on GtkLayout and
// GtkFixed. It makes use of the gravity window property and
// therefore does not work with GTK 1.0.
// Author: Robert Roebling
// Id: $Id$
// Copyright: (c) 1998 Robert Roebling
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////// */
#ifdef VMS
#define XCheckIfEvent XCHECKIFEVENT
#endif
#include "wx/setup.h"
#include "wx/gtk/win_gtk.h"
#include "gtk/gtksignal.h"
#include "gtk/gtkprivate.h"
#include "gdk/gdkx.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#define IS_ONSCREEN(x,y) ((x >= G_MINSHORT) && (x <= G_MAXSHORT) && \
(y >= G_MINSHORT) && (y <= G_MAXSHORT))
typedef struct _GtkPizzaAdjData GtkPizzaAdjData;
struct _GtkPizzaAdjData
{
gint dx;
gint dy;
};
static void gtk_pizza_class_init (GtkPizzaClass *klass);
static void gtk_pizza_init (GtkPizza *pizza);
static void gtk_pizza_realize (GtkWidget *widget);
static void gtk_pizza_unrealize (GtkWidget *widget);
static void gtk_pizza_map (GtkWidget *widget);
static void gtk_pizza_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_pizza_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_pizza_draw (GtkWidget *widget,
GdkRectangle *area);
static gint gtk_pizza_expose (GtkWidget *widget,
GdkEventExpose *event);
static void gtk_pizza_add (GtkContainer *container,
GtkWidget *widget);
static void gtk_pizza_remove (GtkContainer *container,
GtkWidget *widget);
static void gtk_pizza_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data);
static void gtk_pizza_position_child (GtkPizza *pizza,
GtkPizzaChild *child);
static void gtk_pizza_allocate_child (GtkPizza *pizza,
GtkPizzaChild *child);
static void gtk_pizza_position_children (GtkPizza *pizza);
static void gtk_pizza_adjust_allocations_recurse (GtkWidget *widget,
gpointer cb_data);
static void gtk_pizza_adjust_allocations (GtkPizza *pizza,
gint dx,
gint dy);
/* unused */
#if 0
static void gtk_pizza_expose_area (GtkPizza *pizza,
gint x,
gint y,
gint width,
gint height);
static void gtk_pizza_adjustment_changed (GtkAdjustment *adjustment,
GtkPizza *pizza);
#endif
static GdkFilterReturn gtk_pizza_filter (GdkXEvent *gdk_xevent,
GdkEvent *event,
gpointer data);
static GdkFilterReturn gtk_pizza_main_filter (GdkXEvent *gdk_xevent,
GdkEvent *event,
gpointer data);
static GtkType gtk_pizza_child_type (GtkContainer *container);
static void gtk_pizza_scroll_set_adjustments (GtkPizza *pizza,
GtkAdjustment *hadj,
GtkAdjustment *vadj);
static GtkContainerClass *parent_class = NULL;
static gboolean gravity_works;
guint
gtk_pizza_get_type ()
{
static guint pizza_type = 0;
if (!pizza_type)
{
GtkTypeInfo pizza_info =
{
"GtkPizza",
sizeof (GtkPizza),
sizeof (GtkPizzaClass),
(GtkClassInitFunc) gtk_pizza_class_init,
(GtkObjectInitFunc) gtk_pizza_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
pizza_type = gtk_type_unique (gtk_container_get_type (), &pizza_info);
}
return pizza_type;
}
static void
gtk_pizza_class_init (GtkPizzaClass *klass)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
object_class = (GtkObjectClass*) klass;
widget_class = (GtkWidgetClass*) klass;
container_class = (GtkContainerClass*) klass;
parent_class = gtk_type_class (GTK_TYPE_CONTAINER);
widget_class->map = gtk_pizza_map;
widget_class->realize = gtk_pizza_realize;
widget_class->unrealize = gtk_pizza_unrealize;
widget_class->size_request = gtk_pizza_size_request;
widget_class->size_allocate = gtk_pizza_size_allocate;
widget_class->draw = gtk_pizza_draw;
widget_class->expose_event = gtk_pizza_expose;
container_class->add = gtk_pizza_add;
container_class->remove = gtk_pizza_remove;
container_class->forall = gtk_pizza_forall;
container_class->child_type = gtk_pizza_child_type;
klass->set_scroll_adjustments = gtk_pizza_scroll_set_adjustments;
widget_class->set_scroll_adjustments_signal =
gtk_signal_new ("set_scroll_adjustments",
GTK_RUN_LAST,
#ifdef __WXGTK20__
GTK_CLASS_TYPE(object_class),
#else
object_class->type,
#endif
GTK_SIGNAL_OFFSET (GtkPizzaClass, set_scroll_adjustments),
gtk_marshal_NONE__POINTER_POINTER,
GTK_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
}
static GtkType
gtk_pizza_child_type (GtkContainer *container)
{
return GTK_TYPE_WIDGET;
}
static void
gtk_pizza_init (GtkPizza *pizza)
{
GTK_WIDGET_UNSET_FLAGS (pizza, GTK_NO_WINDOW);
pizza->shadow_type = GTK_MYSHADOW_NONE;
pizza->children = NULL;
pizza->width = 20;
pizza->height = 20;
pizza->bin_window = NULL;
pizza->xoffset = 0;
pizza->yoffset = 0;
pizza->configure_serial = 0;
pizza->scroll_x = 0;
pizza->scroll_y = 0;
pizza->visibility = GDK_VISIBILITY_PARTIAL;
pizza->clear_on_draw = TRUE;
pizza->use_filter = TRUE;
pizza->external_expose = FALSE;
}
GtkWidget*
gtk_pizza_new ()
{
GtkPizza *pizza;
pizza = gtk_type_new (gtk_pizza_get_type ());
return GTK_WIDGET (pizza);
}
static void
gtk_pizza_scroll_set_adjustments (GtkPizza *pizza,
GtkAdjustment *hadj,
GtkAdjustment *vadj)
{
/* We handle scrolling in the wxScrolledWindow, not here. */
}
void
gtk_pizza_set_shadow_type (GtkPizza *pizza,
GtkMyShadowType type)
{
g_return_if_fail (pizza != NULL);
g_return_if_fail (GTK_IS_PIZZA (pizza));
if ((GtkMyShadowType) pizza->shadow_type != type)
{
pizza->shadow_type = type;
if (GTK_WIDGET_VISIBLE (pizza))
{
gtk_widget_size_allocate (GTK_WIDGET (pizza), &(GTK_WIDGET (pizza)->allocation));
gtk_widget_queue_draw (GTK_WIDGET (pizza));
}
}
}
void
gtk_pizza_set_clear (GtkPizza *pizza,
gboolean clear)
{
g_return_if_fail (pizza != NULL);
g_return_if_fail (GTK_IS_PIZZA (pizza));
pizza->clear_on_draw = clear;
}
void
gtk_pizza_set_filter (GtkPizza *pizza,
gboolean use)
{
g_return_if_fail (pizza != NULL);
g_return_if_fail (GTK_IS_PIZZA (pizza));
pizza->use_filter = use;
}
void
gtk_pizza_set_external (GtkPizza *pizza,
gboolean expose)
{
g_return_if_fail (pizza != NULL);
g_return_if_fail (GTK_IS_PIZZA (pizza));
pizza->external_expose = expose;
}
void
gtk_pizza_put (GtkPizza *pizza,
GtkWidget *widget,
gint x,
gint y,
gint width,
gint height)
{
GtkPizzaChild *child_info;
g_return_if_fail (pizza != NULL);
g_return_if_fail (GTK_IS_PIZZA (pizza));
g_return_if_fail (widget != NULL);
child_info = g_new (GtkPizzaChild, 1);
child_info->widget = widget;
child_info->x = x;
child_info->y = y;
child_info->width = width;
child_info->height = height;
pizza->children = g_list_append (pizza->children, child_info);
gtk_widget_set_parent (widget, GTK_WIDGET (pizza));
if (GTK_WIDGET_REALIZED (pizza))
gtk_widget_set_parent_window (widget, pizza->bin_window);
#ifndef __WXGTK20__ /* FIXME? */
if (!IS_ONSCREEN (x, y))
GTK_PRIVATE_SET_FLAG (widget, GTK_IS_OFFSCREEN);
#endif
/*
if (GTK_WIDGET_REALIZED (pizza))
gtk_widget_realize (widget);
*/
gtk_widget_set_usize (widget, width, height);
/*
if (GTK_WIDGET_VISIBLE (pizza) && GTK_WIDGET_VISIBLE (widget))
{
if (GTK_WIDGET_MAPPED (pizza))
gtk_widget_map (widget);
gtk_widget_queue_resize (widget);
}
*/
}
void
gtk_pizza_move (GtkPizza *pizza,
GtkWidget *widget,
gint x,
gint y)
{
GtkPizzaChild *child;
GList *children;
g_return_if_fail (pizza != NULL);
g_return_if_fail (GTK_IS_PIZZA (pizza));
g_return_if_fail (widget != NULL);
children = pizza->children;
while (children)
{
child = children->data;
children = children->next;
if (child->widget == widget)
{
if ((child->x == x) && (child->y == y))
break;
child->x = x;
child->y = y;
if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (pizza))
gtk_widget_queue_resize (widget);
break;
}
}
}
void
gtk_pizza_resize (GtkPizza *pizza,
GtkWidget *widget,
gint width,
gint height)
{
GtkPizzaChild *child;
GList *children;
g_return_if_fail (pizza != NULL);
g_return_if_fail (GTK_IS_PIZZA (pizza));
g_return_if_fail (widget != NULL);
children = pizza->children;
while (children)
{
child = children->data;
children = children->next;
if (child->widget == widget)
{
if ((child->width == width) && (child->height == height))
break;
child->width = width;
child->height = height;
gtk_widget_set_usize (widget, width, height);
if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (pizza))
gtk_widget_queue_resize (widget);
break;
}
}
}
void
gtk_pizza_set_size (GtkPizza *pizza,
GtkWidget *widget,
gint x,
gint y,
gint width,
gint height)
{
GtkPizzaChild *child;
GList *children;
g_return_if_fail (pizza != NULL);
g_return_if_fail (GTK_IS_PIZZA (pizza));
g_return_if_fail (widget != NULL);
children = pizza->children;
while (children)
{
child = children->data;
children = children->next;
if (child->widget == widget)
{
if ((child->x == x) &&
(child->y == y) &&
(child->width == width) &&
(child->height == height)) return;
child->x = x;
child->y = y;
child->width = width;
child->height = height;
gtk_widget_set_usize (widget, width, height);
if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (pizza))
gtk_widget_queue_resize (widget);
return;
}
}
}
gint
gtk_pizza_child_resized (GtkPizza *pizza,
GtkWidget *widget)
{
GtkPizzaChild *child;
GList *children;
g_return_val_if_fail (pizza != NULL, FALSE);
g_return_val_if_fail (GTK_IS_PIZZA (pizza), FALSE);
g_return_val_if_fail (widget != NULL, FALSE);
children = pizza->children;
while (children)
{
child = children->data;
children = children->next;
if (child->widget == widget)
{
return ((child->width == widget->allocation.width) &&
(child->height == widget->allocation.height));
}
}
return FALSE;
}
static void
gtk_pizza_map (GtkWidget *widget)
{
GtkPizza *pizza;
GtkPizzaChild *child;
GList *children;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_PIZZA (widget));
GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
pizza = GTK_PIZZA (widget);
children = pizza->children;
while (children)
{
child = children->data;
children = children->next;
if ( GTK_WIDGET_VISIBLE (child->widget) &&
!GTK_WIDGET_MAPPED (child->widget) &&
#ifdef __WXGTK20__
TRUE)
#else
!GTK_WIDGET_IS_OFFSCREEN (child->widget))
#endif
{
gtk_widget_map (child->widget);
}
}
gdk_window_show (widget->window);
gdk_window_show (pizza->bin_window);
}
static void
gtk_pizza_realize (GtkWidget *widget)
{
GtkPizza *pizza;
GdkWindowAttr attributes;
gint attributes_mask;
GtkPizzaChild *child;
GList *children;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_PIZZA (widget));
pizza = GTK_PIZZA (widget);
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = widget->allocation.x;
attributes.y = widget->allocation.y;
attributes.width = widget->allocation.width;
attributes.height = widget->allocation.height;
if (pizza->shadow_type == GTK_MYSHADOW_NONE)
{
/* no border, no changes to sizes */
} else
if (pizza->shadow_type == GTK_MYSHADOW_THIN)
{
/* GTK_MYSHADOW_THIN == wxSIMPLE_BORDER */
attributes.x += 1;
attributes.y += 1;
attributes.width -= 2;
attributes.height -= 2;
} else
{
/* GTK_MYSHADOW_IN == wxSUNKEN_BORDER */
/* GTK_MYSHADOW_OUT == wxRAISED_BORDER */
attributes.x += 2;
attributes.y += 2;
attributes.width -= 4;
attributes.height -= 4;
}
/* minimal size */
if (attributes.width < 2) attributes.width = 2;
if (attributes.height < 2) attributes.height = 2;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask =
GDK_VISIBILITY_NOTIFY_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
widget->window = gdk_window_new(gtk_widget_get_parent_window (widget),
&attributes, attributes_mask);
gdk_window_set_user_data (widget->window, widget);
attributes.x = 0;
attributes.y = 0;
attributes.event_mask = gtk_widget_get_events (widget);
attributes.event_mask |=
GDK_EXPOSURE_MASK |
GDK_POINTER_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK |
GDK_BUTTON_MOTION_MASK |
GDK_BUTTON1_MOTION_MASK |
GDK_BUTTON2_MOTION_MASK |
GDK_BUTTON3_MOTION_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_KEY_PRESS_MASK |
GDK_KEY_RELEASE_MASK |
GDK_ENTER_NOTIFY_MASK |
GDK_LEAVE_NOTIFY_MASK |
GDK_FOCUS_CHANGE_MASK;
pizza->bin_window = gdk_window_new(widget->window,
&attributes, attributes_mask);
gdk_window_set_user_data (pizza->bin_window, widget);
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, pizza->bin_window, GTK_STATE_NORMAL );
/* add filters for intercepting visibility and expose events */
gdk_window_add_filter (widget->window, gtk_pizza_main_filter, pizza);
gdk_window_add_filter (pizza->bin_window, gtk_pizza_filter, pizza);
/* we NEED gravity or we'll give up */
gravity_works = gdk_window_set_static_gravities (pizza->bin_window, TRUE);
/* cannot be done before realisation */
children = pizza->children;
while (children)
{
child = children->data;
children = children->next;
gtk_widget_set_parent_window (child->widget, pizza->bin_window);
}
}
static void
gtk_pizza_unrealize (GtkWidget *widget)
{
GtkPizza *pizza;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_PIZZA (widget));
pizza = GTK_PIZZA (widget);
gdk_window_set_user_data (pizza->bin_window, NULL);
gdk_window_destroy (pizza->bin_window);
pizza->bin_window = NULL;
if (GTK_WIDGET_CLASS (parent_class)->unrealize)
(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
}
static void
gtk_pizza_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkPizza *pizza;
GtkPizzaChild *child;
GList *children;
GtkRequisition child_requisition;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_PIZZA (widget));
g_return_if_fail (requisition != NULL);
pizza = GTK_PIZZA (widget);
children = pizza->children;
while (children)
{
child = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (child->widget))
{
gtk_widget_size_request (child->widget, &child_requisition);
}
}
/* request very little, I'm not sure if requesting nothing
will always have positive effects on stability... */
requisition->width = 2;
requisition->height = 2;
}
static void
gtk_pizza_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkPizza *pizza;
gint border;
gint x,y,w,h;
GtkPizzaChild *child;
GList *children;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_PIZZA(widget));
g_return_if_fail (allocation != NULL);
pizza = GTK_PIZZA (widget);
widget->allocation = *allocation;
if (pizza->shadow_type == GTK_MYSHADOW_NONE)
border = 0;
else
if (pizza->shadow_type == GTK_MYSHADOW_THIN)
border = 1;
else
border = 2;
x = allocation->x + border;
y = allocation->y + border;
w = allocation->width - border*2;
h = allocation->height - border*2;
if (GTK_WIDGET_REALIZED (widget))
{
gdk_window_move_resize( widget->window, x, y, w, h );
gdk_window_move_resize( pizza->bin_window, 0, 0, w, h );
}
children = pizza->children;
while (children)
{
child = children->data;
children = children->next;
gtk_pizza_position_child (pizza, child);
gtk_pizza_allocate_child (pizza, child);
}
}
static void
gtk_pizza_draw (GtkWidget *widget,
GdkRectangle *area)
{
GtkPizza *pizza;
GtkPizzaChild *child;
GdkRectangle child_area;
GList *children;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_PIZZA (widget));
pizza = GTK_PIZZA (widget);
/* Sometimes, We handle all expose events in window.cpp now. */
if (pizza->external_expose)
return;
children = pizza->children;
if ( !(GTK_WIDGET_APP_PAINTABLE (widget)) &&
(pizza->clear_on_draw))
{
gdk_window_clear_area( pizza->bin_window,
area->x, area->y, area->width, area->height);
}
while (children)
{
child = children->data;
children = children->next;
if (gtk_widget_intersect (child->widget, area, &child_area))
gtk_widget_draw (child->widget, &child_area);
}
}
static gint
gtk_pizza_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkPizza *pizza;
GtkPizzaChild *child;
GdkEventExpose child_event;
GList *children;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_PIZZA (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
pizza = GTK_PIZZA (widget);
/* Sometimes, We handle all expose events in window.cpp now. */
if (pizza->external_expose)
return FALSE;
if (event->window != pizza->bin_window)
return FALSE;
children = pizza->children;
while (children)
{
child = children->data;
children = children->next;
child_event = *event;
if (GTK_WIDGET_NO_WINDOW (child->widget) &&
GTK_WIDGET_DRAWABLE (child->widget) &&
gtk_widget_intersect (child->widget, &event->area, &child_event.area))
{
gtk_widget_event (child->widget, (GdkEvent*) &child_event);
}
}
return TRUE;
}
static void
gtk_pizza_add (GtkContainer *container,
GtkWidget *widget)
{
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_PIZZA (container));
g_return_if_fail (widget != NULL);
gtk_pizza_put (GTK_PIZZA (container), widget, 0, 0, 20, 20 );
}
static void
gtk_pizza_remove (GtkContainer *container,
GtkWidget *widget)
{
GtkPizza *pizza;
GtkPizzaChild *child;
GList *children;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_PIZZA (container));
g_return_if_fail (widget != NULL);
pizza = GTK_PIZZA (container);
children = pizza->children;
while (children)
{
child = children->data;
if (child->widget == widget)
{
gtk_widget_unparent (widget);
/* security checks */
g_return_if_fail (GTK_IS_WIDGET (widget));
pizza->children = g_list_remove_link (pizza->children, children);
g_list_free (children);
g_free (child);
/* security checks */
g_return_if_fail (GTK_IS_WIDGET (widget));
#ifndef __WXGTK20__
GTK_PRIVATE_UNSET_FLAG (widget, GTK_IS_OFFSCREEN);
#endif
break;
}
children = children->next;
}
}
static void
gtk_pizza_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GtkPizza *pizza;
GtkPizzaChild *child;
GList *children;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_PIZZA (container));
g_return_if_fail (callback != NULL);
pizza = GTK_PIZZA (container);
children = pizza->children;
while (children)
{
child = children->data;
children = children->next;
(* callback) (child->widget, callback_data);
}
}
/* Operations on children
*/
static void
gtk_pizza_position_child (GtkPizza *pizza,
GtkPizzaChild *child)
{
gint x;
gint y;
x = child->x - pizza->xoffset;
y = child->y - pizza->yoffset;
if (IS_ONSCREEN (x,y))
{
if (GTK_WIDGET_MAPPED (pizza) &&
GTK_WIDGET_VISIBLE (child->widget))
{
if (!GTK_WIDGET_MAPPED (child->widget))
gtk_widget_map (child->widget);
}
#ifndef __WXGTK20__
if (GTK_WIDGET_IS_OFFSCREEN (child->widget))
GTK_PRIVATE_UNSET_FLAG (child->widget, GTK_IS_OFFSCREEN);
#endif
}
else
{
#ifndef __WXGTK20__
if (!GTK_WIDGET_IS_OFFSCREEN (child->widget))
GTK_PRIVATE_SET_FLAG (child->widget, GTK_IS_OFFSCREEN);
#endif
if (GTK_WIDGET_MAPPED (child->widget))
gtk_widget_unmap (child->widget);
}
}
static void
gtk_pizza_allocate_child (GtkPizza *pizza,
GtkPizzaChild *child)
{
GtkAllocation allocation;
GtkRequisition requisition;
allocation.x = child->x - pizza->xoffset;
allocation.y = child->y - pizza->yoffset;
gtk_widget_get_child_requisition (child->widget, &requisition);
allocation.width = requisition.width;
allocation.height = requisition.height;
gtk_widget_size_allocate (child->widget, &allocation);
}
static void
gtk_pizza_position_children (GtkPizza *pizza)
{
GList *tmp_list;
tmp_list = pizza->children;
while (tmp_list)
{
GtkPizzaChild *child = tmp_list->data;
tmp_list = tmp_list->next;
gtk_pizza_position_child (pizza, child);
}
}
static void
gtk_pizza_adjust_allocations_recurse (GtkWidget *widget,
gpointer cb_data)
{
GtkPizzaAdjData *data = cb_data;
widget->allocation.x += data->dx;
widget->allocation.y += data->dy;
if (GTK_WIDGET_NO_WINDOW (widget) && GTK_IS_CONTAINER (widget))
{
gtk_container_forall (GTK_CONTAINER (widget),
gtk_pizza_adjust_allocations_recurse,
cb_data);
}
}
static void
gtk_pizza_adjust_allocations (GtkPizza *pizza,
gint dx,
gint dy)
{
GList *tmp_list;
GtkPizzaAdjData data;
data.dx = dx;
data.dy = dy;
tmp_list = pizza->children;
while (tmp_list)
{
GtkPizzaChild *child = tmp_list->data;
tmp_list = tmp_list->next;
child->widget->allocation.x += dx;
child->widget->allocation.y += dy;
if (GTK_WIDGET_NO_WINDOW (child->widget) &&
GTK_IS_CONTAINER (child->widget))
{
gtk_container_forall (GTK_CONTAINER (child->widget),
gtk_pizza_adjust_allocations_recurse,
&data);
}
}
}
/* Callbacks */
/* unused */
#if 0
/* Send a synthetic expose event to the widget
*/
static void
gtk_pizza_expose_area (GtkPizza *pizza,
gint x, gint y, gint width, gint height)
{
if (pizza->visibility == GDK_VISIBILITY_UNOBSCURED)
{
GdkEventExpose event;
event.type = GDK_EXPOSE;
event.send_event = TRUE;
event.window = pizza->bin_window;
event.count = 0;
event.area.x = x;
event.area.y = y;
event.area.width = width;
event.area.height = height;
gdk_window_ref (event.window);
gtk_widget_event (GTK_WIDGET (pizza), (GdkEvent *)&event);
gdk_window_unref (event.window);
}
}
#endif /* unused */
/* This function is used to find events to process while scrolling
*/
static Bool
gtk_pizza_expose_predicate (Display *display,
XEvent *xevent,
XPointer arg)
{
if ((xevent->type == Expose) ||
((xevent->xany.window == *(Window *)arg) &&
(xevent->type == ConfigureNotify)))
return True;
else
return False;
}
/* This is the main routine to do the scrolling. Scrolling is
* done by "Guffaw" scrolling, as in the Mozilla XFE, with
* a few modifications.
*
* The main improvement is that we keep track of whether we
* are obscured or not. If not, we ignore the generated expose
* events and instead do the exposes ourself, without having
* to wait for a roundtrip to the server. This also provides
* a limited form of expose-event compression, since we do
* the affected area as one big chunk.
*/
void
gtk_pizza_scroll (GtkPizza *pizza, gint dx, gint dy)
{
GtkWidget *widget;
XEvent xevent;
gint x,y,w,h,border;
widget = GTK_WIDGET (pizza);
pizza->xoffset += dx;
pizza->yoffset += dy;
if (!GTK_WIDGET_MAPPED (pizza))
{
gtk_pizza_position_children (pizza);
return;
}
gtk_pizza_adjust_allocations (pizza, -dx, -dy);
if (pizza->shadow_type == GTK_MYSHADOW_NONE)
border = 0;
else
if (pizza->shadow_type == GTK_MYSHADOW_THIN)
border = 1;
else
border = 2;
x = 0;
y = 0;
w = widget->allocation.width - 2*border;
h = widget->allocation.height - 2*border;
if (dx > 0)
{
if (gravity_works)
{
gdk_window_resize (pizza->bin_window,
w + dx,
h);
gdk_window_move (pizza->bin_window, x-dx, y);
gdk_window_move_resize (pizza->bin_window, x, y, w, h );
}
else
{
/* FIXME */
}
}
else if (dx < 0)
{
if (gravity_works)
{
gdk_window_move_resize (pizza->bin_window,
x + dx,
y,
w - dx,
h);
gdk_window_move (pizza->bin_window, x, y);
gdk_window_resize (pizza->bin_window, w, h );
}
else
{
/* FIXME */
}
}
if (dy > 0)
{
if (gravity_works)
{
gdk_window_resize (pizza->bin_window, w, h + dy);
gdk_window_move (pizza->bin_window, x, y-dy);
gdk_window_move_resize (pizza->bin_window,
x, y, w, h );
}
else
{
/* FIXME */
}
}
else if (dy < 0)
{
if (gravity_works)
{
gdk_window_move_resize (pizza->bin_window,
x, y+dy, w, h - dy );
gdk_window_move (pizza->bin_window, x, y);
gdk_window_resize (pizza->bin_window, w, h );
}
else
{
/* FIXME */
}
}
gtk_pizza_position_children (pizza);
gdk_flush();
while (XCheckIfEvent(GDK_WINDOW_XDISPLAY (pizza->bin_window),
&xevent,
gtk_pizza_expose_predicate,
(XPointer)&GDK_WINDOW_XWINDOW (pizza->bin_window)))
{
GdkEvent event;
GtkWidget *event_widget;
if ((xevent.xany.window == GDK_WINDOW_XWINDOW (pizza->bin_window)) )
gtk_pizza_filter (&xevent, &event, pizza);
if (xevent.type == Expose)
{
event.expose.window = gdk_window_lookup (xevent.xany.window);
gdk_window_get_user_data (event.expose.window,
(gpointer *)&event_widget);
if (event_widget)
{
event.expose.type = GDK_EXPOSE;
event.expose.area.x = xevent.xexpose.x;
event.expose.area.y = xevent.xexpose.y;
event.expose.area.width = xevent.xexpose.width;
event.expose.area.height = xevent.xexpose.height;
event.expose.count = xevent.xexpose.count;
gdk_window_ref (event.expose.window);
gtk_widget_event (event_widget, &event);
gdk_window_unref (event.expose.window);
}
}
}
}
/* The main event filter. Actually, we probably don't really need
* to install this as a filter at all, since we are calling it
* directly above in the expose-handling hack. But in case scrollbars
* are fixed up in some manner...
*
* This routine identifies expose events that are generated when
* we've temporarily moved the bin_window_origin, and translates
* them or discards them, depending on whether we are obscured
* or not.
*/
static GdkFilterReturn
gtk_pizza_filter (GdkXEvent *gdk_xevent,
GdkEvent *event,
gpointer data)
{
XEvent *xevent;
GtkPizza *pizza;
xevent = (XEvent *)gdk_xevent;
pizza = GTK_PIZZA (data);
if (!pizza->use_filter)
return GDK_FILTER_CONTINUE;
switch (xevent->type)
{
case Expose:
if (xevent->xexpose.serial == pizza->configure_serial)
{
xevent->xexpose.x += pizza->scroll_x;
xevent->xexpose.y += pizza->scroll_y;
}
break;
case ConfigureNotify:
{
pizza->configure_serial = xevent->xconfigure.serial;
pizza->scroll_x = xevent->xconfigure.x;
pizza->scroll_y = xevent->xconfigure.y;
}
break;
}
return GDK_FILTER_CONTINUE;
}
/* Although GDK does have a GDK_VISIBILITY_NOTIFY event,
* there is no corresponding event in GTK, so we have
* to get the events from a filter
*/
static GdkFilterReturn
gtk_pizza_main_filter (GdkXEvent *gdk_xevent,
GdkEvent *event,
gpointer data)
{
XEvent *xevent;
GtkPizza *pizza;
xevent = (XEvent *)gdk_xevent;
pizza = GTK_PIZZA (data);
if (!pizza->use_filter)
return GDK_FILTER_CONTINUE;
if (xevent->type == VisibilityNotify)
{
switch (xevent->xvisibility.state)
{
case VisibilityFullyObscured:
pizza->visibility = GDK_VISIBILITY_FULLY_OBSCURED;
break;
case VisibilityPartiallyObscured:
pizza->visibility = GDK_VISIBILITY_PARTIAL;
break;
case VisibilityUnobscured:
pizza->visibility = GDK_VISIBILITY_UNOBSCURED;
break;
}
return GDK_FILTER_REMOVE;
}
return GDK_FILTER_CONTINUE;
}
#ifdef __cplusplus
}
#endif /* __cplusplus */
Reference in New Issue View Git Blame Copy Permalink