/* ///////////////////////////////////////////////////////////////////////////
// Name: win_gtk.c
-// Purpose: native GTK+ widget for wxWindows
+// 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
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////// */
#include "wx/gtk/win_gtk.h"
#include "gtk/gtksignal.h"
+#include "gtk/gtkprivate.h"
+#include "gdk/gdkx.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
-static void gtk_myfixed_class_init (GtkMyFixedClass *klass);
-static void gtk_myfixed_init (GtkMyFixed *myfixed);
-static void gtk_myfixed_map (GtkWidget *widget);
-#if (GTK_MINOR_VERSION == 0)
-static void gtk_myfixed_unmap (GtkWidget *widget);
-#endif
-static void gtk_myfixed_realize (GtkWidget *widget);
-static void gtk_myfixed_size_request (GtkWidget *widget,
- GtkRequisition *requisition);
-static void gtk_myfixed_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation);
-static void gtk_myfixed_paint (GtkWidget *widget,
- GdkRectangle *area);
-static void gtk_myfixed_draw (GtkWidget *widget,
- GdkRectangle *area);
-static gint gtk_myfixed_expose (GtkWidget *widget,
- GdkEventExpose *event);
-static void gtk_myfixed_add (GtkContainer *container,
- GtkWidget *widget);
-static void gtk_myfixed_remove (GtkContainer *container,
- GtkWidget *widget);
-static void gtk_myfixed_foreach (GtkContainer *container,
-#if (GTK_MINOR_VERSION > 0)
- gboolean include_internals,
-#endif
- GtkCallback callback,
- gpointer callback_data);
-#if (GTK_MINOR_VERSION > 0)
-static GtkType gtk_myfixed_child_type (GtkContainer *container);
-#endif
-
-#if (GTK_MINOR_VERSION > 0)
-static void gtk_myfixed_scroll_set_adjustments (GtkMyFixed *myfixed,
- GtkAdjustment *hadj,
- GtkAdjustment *vadj);
-#endif
+#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;
+typedef struct _GtkPizzaChild GtkPizzaChild;
+
+struct _GtkPizzaAdjData
+{
+ gint dx;
+ gint dy;
+};
+
+struct _GtkPizzaChild
+{
+ GtkWidget *widget;
+ gint x;
+ gint y;
+ gint width;
+ gint height;
+};
+
+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);
+
+
+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);
+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_myfixed_get_type ()
-{
- static guint myfixed_type = 0;
-
- if (!myfixed_type)
- {
- GtkTypeInfo myfixed_info =
- {
- "GtkMyFixed",
- sizeof (GtkMyFixed),
- sizeof (GtkMyFixedClass),
- (GtkClassInitFunc) gtk_myfixed_class_init,
- (GtkObjectInitFunc) gtk_myfixed_init,
-#if (GTK_MINOR_VERSION > 0)
- /* reserved_1 */ NULL,
- /* reserved_2 */ NULL,
- (GtkClassInitFunc) NULL,
-#else
- (GtkArgSetFunc) NULL,
- (GtkArgGetFunc) NULL,
-#endif
- };
-
- myfixed_type = gtk_type_unique (gtk_container_get_type (), &myfixed_info);
+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 myfixed_type;
+ return pizza_type;
}
static void
-gtk_myfixed_class_init (GtkMyFixedClass *klass)
-{
- GtkObjectClass *object_class;
- GtkWidgetClass *widget_class;
- GtkContainerClass *container_class;
-
- object_class = (GtkObjectClass*) klass;
- widget_class = (GtkWidgetClass*) klass;
- container_class = (GtkContainerClass*) klass;
-
-#if (GTK_MINOR_VERSION > 0)
- parent_class = gtk_type_class (GTK_TYPE_CONTAINER);
-#else
- parent_class = gtk_type_class (gtk_container_get_type ());
-#endif
-
- widget_class->map = gtk_myfixed_map;
-#if (GTK_MINOR_VERSION == 0)
- widget_class->unmap = gtk_myfixed_unmap;
-#endif
- widget_class->realize = gtk_myfixed_realize;
- widget_class->size_request = gtk_myfixed_size_request;
- widget_class->size_allocate = gtk_myfixed_size_allocate;
- widget_class->draw = gtk_myfixed_draw;
- widget_class->expose_event = gtk_myfixed_expose;
-
- container_class->add = gtk_myfixed_add;
- container_class->remove = gtk_myfixed_remove;
-#if (GTK_MINOR_VERSION > 0)
- container_class->forall = gtk_myfixed_foreach;
-#else
- container_class->foreach = gtk_myfixed_foreach;
-#endif
-
-#if (GTK_MINOR_VERSION > 0)
- container_class->child_type = gtk_myfixed_child_type;
-#endif
-
-#if (GTK_MINOR_VERSION > 0)
- klass->set_scroll_adjustments = gtk_myfixed_scroll_set_adjustments;
-
- widget_class->set_scroll_adjustments_signal =
+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,
- object_class->type,
- GTK_SIGNAL_OFFSET (GtkMyFixedClass, set_scroll_adjustments),
- gtk_marshal_NONE__POINTER_POINTER,
- GTK_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
-#endif
+ GTK_RUN_LAST,
+ object_class->type,
+ GTK_SIGNAL_OFFSET (GtkPizzaClass, set_scroll_adjustments),
+ gtk_marshal_NONE__POINTER_POINTER,
+ GTK_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
}
-#if (GTK_MINOR_VERSION > 0)
static GtkType
-gtk_myfixed_child_type (GtkContainer *container)
+gtk_pizza_child_type (GtkContainer *container)
{
- return GTK_TYPE_WIDGET;
+ return GTK_TYPE_WIDGET;
}
-#endif
static void
-gtk_myfixed_init (GtkMyFixed *myfixed)
+gtk_pizza_init (GtkPizza *pizza)
{
- GTK_WIDGET_UNSET_FLAGS (myfixed, GTK_NO_WINDOW);
-
-#if (GTK_MINOR_VERSION == 0)
- GTK_WIDGET_SET_FLAGS (myfixed, GTK_BASIC);
-#endif
+ GTK_WIDGET_UNSET_FLAGS (pizza, GTK_NO_WINDOW);
+
+ pizza->shadow_type = GTK_MYSHADOW_NONE;
+
+ pizza->children = NULL;
-#if (GTK_MINOR_VERSION > 0)
- myfixed->shadow_type = GTK_SHADOW_NONE;
-#endif
+ pizza->width = 20;
+ pizza->height = 20;
- myfixed->children = NULL;
+ 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 = FALSE;
}
GtkWidget*
-gtk_myfixed_new ()
+gtk_pizza_new ()
{
- GtkMyFixed *myfixed;
+ GtkPizza *pizza;
- myfixed = gtk_type_new (gtk_myfixed_get_type ());
-
- return GTK_WIDGET (myfixed);
+ pizza = gtk_type_new (gtk_pizza_get_type ());
+
+ return GTK_WIDGET (pizza);
}
-#if (GTK_MINOR_VERSION > 0)
-void gtk_myfixed_scroll_set_adjustments (GtkMyFixed *myfixed,
- GtkAdjustment *hadj,
- GtkAdjustment *vadj)
+static void
+gtk_pizza_scroll_set_adjustments (GtkPizza *pizza,
+ GtkAdjustment *hadj,
+ GtkAdjustment *vadj)
{
- /* OK, this is embarassing, but this function has to be here */
+ /* We handle scrolling in the wxScrolledWindow, not here. */
}
-void
-gtk_myfixed_set_shadow_type (GtkMyFixed *myfixed,
- GtkShadowType type)
+void
+gtk_pizza_set_shadow_type (GtkPizza *pizza,
+ GtkMyShadowType type)
{
- g_return_if_fail (myfixed != NULL);
- g_return_if_fail (GTK_IS_MYFIXED (myfixed));
+ g_return_if_fail (pizza != NULL);
+ g_return_if_fail (GTK_IS_PIZZA (pizza));
- if ((GtkShadowType) myfixed->shadow_type != type)
+ if ((GtkMyShadowType) pizza->shadow_type != type)
{
- myfixed->shadow_type = type;
+ pizza->shadow_type = type;
- if (GTK_WIDGET_VISIBLE (myfixed))
- {
- gtk_widget_size_allocate (GTK_WIDGET (myfixed), &(GTK_WIDGET (myfixed)->allocation));
- gtk_widget_queue_draw (GTK_WIDGET (myfixed));
- }
+ if (GTK_WIDGET_VISIBLE (pizza))
+ {
+ gtk_widget_size_allocate (GTK_WIDGET (pizza), &(GTK_WIDGET (pizza)->allocation));
+ gtk_widget_queue_draw (GTK_WIDGET (pizza));
+ }
}
}
-#endif
void
-gtk_myfixed_put (GtkMyFixed *myfixed,
- GtkWidget *widget,
- gint16 x,
- gint16 y)
+gtk_pizza_set_clear (GtkPizza *pizza,
+ gboolean clear)
{
- GtkMyFixedChild *child_info;
+ g_return_if_fail (pizza != NULL);
+ g_return_if_fail (GTK_IS_PIZZA (pizza));
- g_return_if_fail (myfixed != NULL);
- g_return_if_fail (GTK_IS_MYFIXED (myfixed));
- g_return_if_fail (widget != NULL);
+ 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_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 = g_new (GtkMyFixedChild, 1);
- child_info->widget = widget;
- child_info->x = x;
- child_info->y = y;
-
- gtk_widget_set_parent (widget, GTK_WIDGET (myfixed));
+ child_info->widget = widget;
+ child_info->x = x;
+ child_info->y = y;
+ child_info->width = width;
+ child_info->height = height;
- myfixed->children = g_list_append (myfixed->children, child_info);
+ pizza->children = g_list_append (pizza->children, child_info);
- if (GTK_WIDGET_REALIZED (myfixed) && !GTK_WIDGET_REALIZED (widget))
- gtk_widget_realize (widget);
+ gtk_widget_set_parent (widget, GTK_WIDGET (pizza));
- if (GTK_WIDGET_MAPPED (myfixed) && !GTK_WIDGET_MAPPED (widget))
- gtk_widget_map (widget);
+ if (GTK_WIDGET_REALIZED (pizza))
+ gtk_widget_set_parent_window (widget, pizza->bin_window);
- if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (myfixed))
- gtk_widget_queue_resize (GTK_WIDGET (myfixed));
+ if (!IS_ONSCREEN (x, y))
+ GTK_PRIVATE_SET_FLAG (widget, GTK_IS_OFFSCREEN);
+
+/*
+ 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_myfixed_move (GtkMyFixed *myfixed,
- GtkWidget *widget,
- gint16 x,
- gint16 y)
+gtk_pizza_move (GtkPizza *pizza,
+ GtkWidget *widget,
+ gint x,
+ gint y)
{
- GtkMyFixedChild *child;
- GList *children;
+ GtkPizzaChild *child;
+ GList *children;
- g_return_if_fail (myfixed != NULL);
- g_return_if_fail (GTK_IS_MYFIXED (myfixed));
- g_return_if_fail (widget != NULL);
+ g_return_if_fail (pizza != NULL);
+ g_return_if_fail (GTK_IS_PIZZA (pizza));
+ g_return_if_fail (widget != NULL);
- children = myfixed->children;
- while (children)
+ children = pizza->children;
+ while (children)
{
- child = children->data;
- children = children->next;
+ child = children->data;
+ children = children->next;
- if (child->widget == widget)
+ if (child->widget == widget)
{
- if ((child->x == x) && (child->y == y)) return;
-
- child->x = x;
- child->y = y;
+ if ((child->x == x) && (child->y == y))
+ break;
- if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (myfixed))
- gtk_widget_queue_resize (GTK_WIDGET (myfixed));
+ child->x = x;
+ child->y = y;
- break;
+ if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (pizza))
+ gtk_widget_queue_resize (widget);
+ break;
}
}
}
-static void
-gtk_myfixed_map (GtkWidget *widget)
+void
+gtk_pizza_resize (GtkPizza *pizza,
+ GtkWidget *widget,
+ gint width,
+ gint height)
{
- GtkMyFixed *myfixed;
- GtkMyFixedChild *child;
- GList *children;
+ GtkPizzaChild *child;
+ GList *children;
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_MYFIXED (widget));
+ 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;
- GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
- myfixed = GTK_MYFIXED (widget);
+ child->width = width;
+ child->height = height;
- gdk_window_show (widget->window);
+ gtk_widget_set_usize (widget, width, height);
- children = myfixed->children;
- while (children)
+ 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;
+ child = children->data;
+ children = children->next;
- if (GTK_WIDGET_VISIBLE (child->widget) &&
- !GTK_WIDGET_MAPPED (child->widget))
- gtk_widget_map (child->widget);
+ 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;
+ }
}
}
-#if (GTK_MINOR_VERSION == 0)
static void
-gtk_myfixed_unmap (GtkWidget *widget)
+gtk_pizza_map (GtkWidget *widget)
{
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_MYFIXED (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);
- GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
+ children = pizza->children;
+ while (children)
+ {
+ child = children->data;
+ children = children->next;
+
+ if ( GTK_WIDGET_VISIBLE (child->widget) &&
+ !GTK_WIDGET_MAPPED (child->widget) &&
+ !GTK_WIDGET_IS_OFFSCREEN (child->widget))
+ {
+ gtk_widget_map (child->widget);
+ }
+ }
+
+ gdk_window_show (widget->window);
+ gdk_window_show (pizza->bin_window);
}
-#endif
static void
-gtk_myfixed_realize (GtkWidget *widget)
+gtk_pizza_realize (GtkWidget *widget)
{
- GtkMyFixed *myfixed;
- GdkWindowAttr attributes;
- gint attributes_mask;
+ GtkPizza *pizza;
+ GdkWindowAttr attributes;
+ gint attributes_mask;
+ GtkPizzaChild *child;
+ GList *children;
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_MYFIXED (widget));
-
- myfixed = GTK_MYFIXED (widget);
-
- GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
-
- attributes.window_type = GDK_WINDOW_CHILD;
-
-#if (GTK_MINOR_VERSION > 0)
- attributes.x = widget->allocation.x;
- attributes.y = widget->allocation.y;
- attributes.width = widget->allocation.width;
- attributes.height = widget->allocation.height;
-
- if (myfixed->shadow_type != GTK_SHADOW_NONE)
- {
- attributes.x += 2;
- attributes.y += 2;
- attributes.width -= 4;
- attributes.height -= 4;
- }
-
- if (attributes.width < 2) attributes.width = 2;
- if (attributes.height < 2) attributes.height = 2;
-#else
- attributes.x = widget->allocation.x;
- attributes.y = widget->allocation.y;
- attributes.width = 32000;
- attributes.height = 32000;
-#endif
- attributes.wclass = GDK_INPUT_OUTPUT;
- attributes.visual = gtk_widget_get_visual (widget);
- attributes.colormap = gtk_widget_get_colormap (widget);
- 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;
-
- 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);
-
- widget->style = gtk_style_attach (widget->style, widget->window);
- gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
+ 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_myfixed_size_request (GtkWidget *widget,
- GtkRequisition *requisition)
+gtk_pizza_unrealize (GtkWidget *widget)
{
- GtkMyFixed *myfixed;
- GtkMyFixedChild *child;
- GList *children;
-
+ GtkPizza *pizza;
+
g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_MYFIXED (widget));
- g_return_if_fail (requisition != NULL);
+ g_return_if_fail (GTK_IS_PIZZA (widget));
- myfixed = GTK_MYFIXED (widget);
-
-/*
- requisition->width = 0;
- requisition->height = 0;
-*/
- requisition->width = widget->requisition.width;
- requisition->height = widget->requisition.height;
+ pizza = GTK_PIZZA (widget);
- children = myfixed->children;
- while (children)
+ 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;
+ child = children->data;
+ children = children->next;
- if (GTK_WIDGET_VISIBLE (child->widget))
- {
- gtk_widget_size_request (child->widget, &child->widget->requisition);
- }
+ 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_myfixed_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation)
+gtk_pizza_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation)
{
- GtkMyFixed *myfixed;
- gint border;
- GtkMyFixedChild *child;
- GtkAllocation child_allocation;
- GList *children;
+ 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_MYFIXED(widget));
- g_return_if_fail (allocation != NULL);
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GTK_IS_PIZZA(widget));
+ g_return_if_fail (allocation != NULL);
+
+ pizza = GTK_PIZZA (widget);
- myfixed = GTK_MYFIXED (widget);
-
widget->allocation = *allocation;
-#if (GTK_MINOR_VERSION > 0)
- if (myfixed->shadow_type == GTK_SHADOW_NONE)
- border = 0;
- else
- border = 2;
-#else
- border = 0;
-#endif
-
- if (GTK_WIDGET_REALIZED (widget))
- {
- gdk_window_move_resize( widget->window,
- allocation->x+border, allocation->y+border,
-#if (GTK_MINOR_VERSION > 0)
- allocation->width-border*2, allocation->height-border*2
-#else
- 32000, 32000
-#endif
- );
- }
-
- children = myfixed->children;
- while (children)
- {
- child = children->data;
- children = children->next;
-
- if (GTK_WIDGET_VISIBLE (child->widget))
- {
- child_allocation.x = child->x;
- child_allocation.y = child->y;
- child_allocation.width = child->widget->requisition.width;
- child_allocation.height = child->widget->requisition.height;
- gtk_widget_size_allocate (child->widget, &child_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_myfixed_paint (GtkWidget *widget,
- GdkRectangle *area)
+gtk_pizza_draw (GtkWidget *widget,
+ GdkRectangle *area)
{
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_MYFIXED (widget));
- g_return_if_fail (area != NULL);
+ 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);
- if (GTK_WIDGET_DRAWABLE (widget))
- gdk_window_clear_area (widget->window,
- area->x, area->y,
- area->width, area->height);
+ 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);
+
+ 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 FALSE;
}
static void
-gtk_myfixed_draw (GtkWidget *widget,
- GdkRectangle *area)
+gtk_pizza_add (GtkContainer *container,
+ GtkWidget *widget)
{
- GtkMyFixed *myfixed;
- GtkMyFixedChild *child;
- GdkRectangle child_area;
- GList *children;
+ g_return_if_fail (container != NULL);
+ g_return_if_fail (GTK_IS_PIZZA (container));
+ g_return_if_fail (widget != NULL);
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_MYFIXED (widget));
+ 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;
- if (GTK_WIDGET_DRAWABLE (widget))
+ 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)
{
- myfixed = GTK_MYFIXED (widget);
- gtk_myfixed_paint (widget, area);
+ child = children->data;
+
+ if (child->widget == widget)
+ {
+ gtk_widget_unparent (widget);
+
+ /* security checks */
+ g_return_if_fail (GTK_IS_WIDGET (widget));
- children = myfixed->children;
- while (children)
- {
- child = children->data;
- children = children->next;
+ 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));
+
+ GTK_PRIVATE_UNSET_FLAG (widget, GTK_IS_OFFSCREEN);
+
+ break;
+ }
- if (gtk_widget_intersect (child->widget, area, &child_area))
- gtk_widget_draw (child->widget, &child_area);
- }
+ children = children->next;
}
}
-static gint
-gtk_myfixed_expose (GtkWidget *widget,
- GdkEventExpose *event)
+static void
+gtk_pizza_forall (GtkContainer *container,
+ gboolean include_internals,
+ GtkCallback callback,
+ gpointer callback_data)
{
- GtkMyFixed *myfixed;
- GtkMyFixedChild *child;
- GdkEventExpose child_event;
- GList *children;
+ 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);
- g_return_val_if_fail (widget != NULL, FALSE);
- g_return_val_if_fail (GTK_IS_MYFIXED (widget), FALSE);
- g_return_val_if_fail (event != NULL, FALSE);
+ pizza = GTK_PIZZA (container);
- if (GTK_WIDGET_DRAWABLE (widget))
+ children = pizza->children;
+ while (children)
{
- myfixed = GTK_MYFIXED (widget);
+ child = children->data;
+ children = children->next;
- child_event = *event;
+ (* callback) (child->widget, callback_data);
+ }
+}
- children = myfixed->children;
- while (children)
- {
- child = children->data;
- children = children->next;
- if (GTK_WIDGET_NO_WINDOW (child->widget) &&
- gtk_widget_intersect (child->widget, &event->area,
- &child_event.area))
- gtk_widget_event (child->widget, (GdkEvent*) &child_event);
- }
+/* 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);
+ }
+
+ if (GTK_WIDGET_IS_OFFSCREEN (child->widget))
+ GTK_PRIVATE_UNSET_FLAG (child->widget, GTK_IS_OFFSCREEN);
}
+ else
+ {
+ if (!GTK_WIDGET_IS_OFFSCREEN (child->widget))
+ GTK_PRIVATE_SET_FLAG (child->widget, GTK_IS_OFFSCREEN);
- return FALSE;
+ if (GTK_WIDGET_MAPPED (child->widget))
+ gtk_widget_unmap (child->widget);
+ }
}
static void
-gtk_myfixed_add (GtkContainer *container,
- GtkWidget *widget)
+gtk_pizza_allocate_child (GtkPizza *pizza,
+ GtkPizzaChild *child)
{
- g_return_if_fail (container != NULL);
- g_return_if_fail (GTK_IS_MYFIXED (container));
- g_return_if_fail (widget != NULL);
+ GtkAllocation allocation;
+ GtkRequisition requisition;
- gtk_myfixed_put (GTK_MYFIXED (container), widget, 0, 0);
+ 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_myfixed_remove (GtkContainer *container,
- GtkWidget *widget)
+gtk_pizza_position_children (GtkPizza *pizza)
{
- GtkMyFixed *myfixed;
- GtkMyFixedChild *child;
- GList *children;
+ GList *tmp_list;
- g_return_if_fail (container != NULL);
- g_return_if_fail (GTK_IS_MYFIXED (container));
- g_return_if_fail (widget != NULL);
+ 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;
- myfixed = GTK_MYFIXED (container);
+ widget->allocation.x += data->dx;
+ widget->allocation.y += data->dy;
- children = myfixed->children;
- while (children)
+ if (GTK_WIDGET_NO_WINDOW (widget) && GTK_IS_CONTAINER (widget))
{
- child = children->data;
+ gtk_container_forall (GTK_CONTAINER (widget),
+ gtk_pizza_adjust_allocations_recurse,
+ cb_data);
+ }
+}
- if (child->widget == widget)
- {
- gtk_widget_unparent (widget);
+static void
+gtk_pizza_adjust_allocations (GtkPizza *pizza,
+ gint dx,
+ gint dy)
+{
+ GList *tmp_list;
+ GtkPizzaAdjData data;
- myfixed->children = g_list_remove_link (myfixed->children, children);
- g_list_free (children);
- g_free (child);
+ data.dx = dx;
+ data.dy = dy;
- if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (container))
- gtk_widget_queue_resize (GTK_WIDGET (container));
+ tmp_list = pizza->children;
+ while (tmp_list)
+ {
+ GtkPizzaChild *child = tmp_list->data;
+ tmp_list = tmp_list->next;
- break;
- }
+ child->widget->allocation.x += dx;
+ child->widget->allocation.y += dy;
- children = children->next;
+ 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 */
+
+/* Send a synthetic expose event to the widget
+ */
static void
-gtk_myfixed_foreach (GtkContainer *container,
-#if (GTK_MINOR_VERSION > 0)
- gboolean include_internals,
-#endif
- GtkCallback callback,
- gpointer callback_data)
+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);
+ }
+}
+
+/* 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 */
+ }
+
+ gtk_pizza_expose_area (pizza,
+ MAX ((gint)w - dx, 0),
+ 0,
+ MIN (dx, w),
+ h);
+ }
+ 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 */
+ }
+
+ gtk_pizza_expose_area (pizza,
+ 0,
+ 0,
+ MIN (-dx, w),
+ h);
+ }
+
+ 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 */
+ }
+
+ gtk_pizza_expose_area (pizza,
+ 0,
+ MAX ((gint)h - dy, 0),
+ w,
+ MIN (dy, h));
+ }
+ 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_expose_area (pizza,
+ 0,
+ 0,
+ w,
+ MIN (-dy, (gint)h));
+ }
+
+ gtk_pizza_position_children (pizza);
+
+ /* We have to make sure that all exposes from this scroll get
+ * processed before we scroll again, or the expose events will
+ * have invalid coordinates.
+ *
+ * We also do expose events for other windows, since otherwise
+ * their updating will fall behind the scrolling
+ *
+ * This also avoids a problem in pre-1.0 GTK where filters don't
+ * have access to configure events that were compressed.
+ */
+
+ 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) == GDK_FILTER_REMOVE))
+ continue;
+
+ 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)
{
- GtkMyFixed *myfixed;
- GtkMyFixedChild *child;
- GList *children;
+ XEvent *xevent;
+ GtkPizza *pizza;
+
+ xevent = (XEvent *)gdk_xevent;
+
+ pizza = GTK_PIZZA (data);
+
+ switch (xevent->type)
+ {
+ case Expose:
+ if (xevent->xexpose.serial == pizza->configure_serial)
+ {
+ if (pizza->visibility == GDK_VISIBILITY_UNOBSCURED)
+ return GDK_FILTER_REMOVE;
+ else
+ {
+ xevent->xexpose.x += pizza->scroll_x;
+ xevent->xexpose.y += pizza->scroll_y;
+
+ break;
+ }
+ }
+ break;
- g_return_if_fail (container != NULL);
- g_return_if_fail (GTK_IS_MYFIXED (container));
- g_return_if_fail (callback != NULL);
+ case ConfigureNotify:
+ if ((xevent->xconfigure.x != 0) || (xevent->xconfigure.y != 0))
+ {
+ pizza->configure_serial = xevent->xconfigure.serial;
+ pizza->scroll_x = xevent->xconfigure.x;
+ pizza->scroll_y = xevent->xconfigure.y;
+ }
+ break;
+ }
- myfixed = GTK_MYFIXED (container);
+ return GDK_FILTER_CONTINUE;
+}
- children = myfixed->children;
- while (children)
+/* 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 (xevent->type == VisibilityNotify)
{
- child = children->data;
- children = children->next;
+ switch (xevent->xvisibility.state)
+ {
+ case VisibilityFullyObscured:
+ pizza->visibility = GDK_VISIBILITY_FULLY_OBSCURED;
+ break;
+
+ case VisibilityPartiallyObscured:
+ pizza->visibility = GDK_VISIBILITY_PARTIAL;
+ break;
- (* callback) (child->widget, callback_data);
+ case VisibilityUnobscured:
+ pizza->visibility = GDK_VISIBILITY_UNOBSCURED;
+ break;
+ }
+
+ return GDK_FILTER_REMOVE;
}
+
+ return GDK_FILTER_CONTINUE;
}
+
+
#ifdef __cplusplus
}
#endif /* __cplusplus */
projects / wxWidgets.git / blobdiff