diff options
Diffstat (limited to 'gtk/gtkfixed.c')
| -rw-r--r-- | gtk/gtkfixed.c | 525 |
1 files changed, 525 insertions, 0 deletions
diff --git a/gtk/gtkfixed.c b/gtk/gtkfixed.c new file mode 100644 index 0000000000..59eba1f46f --- /dev/null +++ b/gtk/gtkfixed.c @@ -0,0 +1,525 @@ +/* GTK - The GIMP Toolkit + * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the Free + * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ +#include "gtkfixed.h" + + +static void gtk_fixed_class_init (GtkFixedClass *klass); +static void gtk_fixed_init (GtkFixed *fixed); +static void gtk_fixed_destroy (GtkObject *object); +static void gtk_fixed_map (GtkWidget *widget); +static void gtk_fixed_unmap (GtkWidget *widget); +static void gtk_fixed_realize (GtkWidget *widget); +static void gtk_fixed_unrealize (GtkWidget *widget); +static void gtk_fixed_size_request (GtkWidget *widget, + GtkRequisition *requisition); +static void gtk_fixed_size_allocate (GtkWidget *widget, + GtkAllocation *allocation); +static void gtk_fixed_paint (GtkWidget *widget, + GdkRectangle *area); +static void gtk_fixed_draw (GtkWidget *widget, + GdkRectangle *area); +static gint gtk_fixed_expose (GtkWidget *widget, + GdkEventExpose *event); +static void gtk_fixed_add (GtkContainer *container, + GtkWidget *widget); +static void gtk_fixed_remove (GtkContainer *container, + GtkWidget *widget); +static void gtk_fixed_foreach (GtkContainer *container, + GtkCallback callback, + gpointer callback_data); + + +static GtkContainerClass *parent_class = NULL; + + +guint +gtk_fixed_get_type () +{ + static guint fixed_type = 0; + + if (!fixed_type) + { + GtkTypeInfo fixed_info = + { + "GtkFixed", + sizeof (GtkFixed), + sizeof (GtkFixedClass), + (GtkClassInitFunc) gtk_fixed_class_init, + (GtkObjectInitFunc) gtk_fixed_init, + (GtkArgFunc) NULL, + }; + + fixed_type = gtk_type_unique (gtk_container_get_type (), &fixed_info); + } + + return fixed_type; +} + +static void +gtk_fixed_class_init (GtkFixedClass *class) +{ + GtkObjectClass *object_class; + GtkWidgetClass *widget_class; + GtkContainerClass *container_class; + + object_class = (GtkObjectClass*) class; + widget_class = (GtkWidgetClass*) class; + container_class = (GtkContainerClass*) class; + + parent_class = gtk_type_class (gtk_container_get_type ()); + + object_class->destroy = gtk_fixed_destroy; + + widget_class->map = gtk_fixed_map; + widget_class->unmap = gtk_fixed_unmap; + widget_class->realize = gtk_fixed_realize; + widget_class->unrealize = gtk_fixed_unrealize; + widget_class->size_request = gtk_fixed_size_request; + widget_class->size_allocate = gtk_fixed_size_allocate; + widget_class->draw = gtk_fixed_draw; + widget_class->expose_event = gtk_fixed_expose; + + container_class->add = gtk_fixed_add; + container_class->remove = gtk_fixed_remove; + container_class->foreach = gtk_fixed_foreach; +} + +static void +gtk_fixed_init (GtkFixed *fixed) +{ + GTK_WIDGET_UNSET_FLAGS (fixed, GTK_NO_WINDOW); + GTK_WIDGET_SET_FLAGS (fixed, GTK_BASIC); + + fixed->children = NULL; +} + +GtkWidget* +gtk_fixed_new () +{ + GtkFixed *fixed; + + fixed = gtk_type_new (gtk_fixed_get_type ()); + return GTK_WIDGET (fixed); +} + +void +gtk_fixed_put (GtkFixed *fixed, + GtkWidget *widget, + gint16 x, + gint16 y) +{ + GtkFixedChild *child_info; + + g_return_if_fail (fixed != NULL); + g_return_if_fail (GTK_IS_FIXED (fixed)); + g_return_if_fail (widget != NULL); + + child_info = g_new (GtkFixedChild, 1); + child_info->widget = widget; + child_info->x = x; + child_info->y = y; + + gtk_widget_set_parent (widget, GTK_WIDGET (fixed)); + + fixed->children = g_list_append (fixed->children, child_info); + + if (GTK_WIDGET_REALIZED (fixed) && !GTK_WIDGET_REALIZED (widget)) + gtk_widget_realize (widget); + + if (GTK_WIDGET_MAPPED (fixed) && !GTK_WIDGET_MAPPED (widget)) + gtk_widget_map (widget); + + if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (fixed)) + gtk_widget_queue_resize (GTK_WIDGET (fixed)); +} + +void +gtk_fixed_move (GtkFixed *fixed, + GtkWidget *widget, + gint16 x, + gint16 y) +{ + GtkFixedChild *child; + GList *children; + + g_return_if_fail (fixed != NULL); + g_return_if_fail (GTK_IS_FIXED (fixed)); + g_return_if_fail (widget != NULL); + + children = fixed->children; + while (children) + { + child = children->data; + children = children->next; + + if (child->widget == widget) + { + child->x = x; + child->y = y; + + if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (fixed)) + gtk_widget_queue_resize (GTK_WIDGET (fixed)); + + break; + } + } +} + +static void +gtk_fixed_destroy (GtkObject *object) +{ + GtkFixed *fixed; + GtkFixedChild *child; + GList *children; + + g_return_if_fail (object != NULL); + g_return_if_fail (GTK_IS_FIXED (object)); + + fixed = GTK_FIXED (object); + + children = fixed->children; + while (children) + { + child = children->data; + children = children->next; + + child->widget->parent = NULL; + gtk_object_unref (GTK_OBJECT (child->widget)); + gtk_widget_destroy (child->widget); + g_free (child); + } + + g_list_free (fixed->children); + + if (GTK_OBJECT_CLASS (parent_class)->destroy) + (* GTK_OBJECT_CLASS (parent_class)->destroy) (object); +} + +static void +gtk_fixed_map (GtkWidget *widget) +{ + GtkFixed *fixed; + GtkFixedChild *child; + GList *children; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_FIXED (widget)); + + GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED); + fixed = GTK_FIXED (widget); + + gdk_window_show (widget->window); + + children = fixed->children; + while (children) + { + child = children->data; + children = children->next; + + if (GTK_WIDGET_VISIBLE (child->widget) && + !GTK_WIDGET_MAPPED (child->widget)) + gtk_widget_map (child->widget); + } +} + +static void +gtk_fixed_unmap (GtkWidget *widget) +{ + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_FIXED (widget)); + + GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED); +} + +static void +gtk_fixed_realize (GtkWidget *widget) +{ + GdkWindowAttr attributes; + gint attributes_mask; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_FIXED (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; + 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_BUTTON_PRESS_MASK; + + attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP; + + widget->window = gdk_window_new (widget->parent->window, &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); +} + +static void +gtk_fixed_unrealize (GtkWidget *widget) +{ + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_FIXED (widget)); + + GTK_WIDGET_UNSET_FLAGS (widget, GTK_REALIZED | GTK_MAPPED); + + gtk_style_detach (widget->style); + gdk_window_destroy (widget->window); + widget->window = NULL; +} + +static void +gtk_fixed_size_request (GtkWidget *widget, + GtkRequisition *requisition) +{ + GtkFixed *fixed; + GtkFixedChild *child; + GList *children; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_FIXED (widget)); + g_return_if_fail (requisition != NULL); + + fixed = GTK_FIXED (widget); + requisition->width = 0; + requisition->height = 0; + + children = fixed->children; + while (children) + { + child = children->data; + children = children->next; + + if (GTK_WIDGET_VISIBLE (child->widget)) + { + gtk_widget_size_request (child->widget, &child->widget->requisition); + + requisition->height = MAX (requisition->height, + child->y + + child->widget->requisition.height); + requisition->width = MAX (requisition->width, + child->x + + child->widget->requisition.width); + } + } + + requisition->height += GTK_CONTAINER (fixed)->border_width * 2; + requisition->width += GTK_CONTAINER (fixed)->border_width * 2; +} + +static void +gtk_fixed_size_allocate (GtkWidget *widget, + GtkAllocation *allocation) +{ + GtkFixed *fixed; + GtkFixedChild *child; + GtkAllocation child_allocation; + GList *children; + guint16 border_width; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_FIXED(widget)); + g_return_if_fail (allocation != NULL); + + fixed = GTK_FIXED (widget); + + widget->allocation = *allocation; + if (GTK_WIDGET_REALIZED (widget)) + gdk_window_move_resize (widget->window, + allocation->x, + allocation->y, + allocation->width, + allocation->height); + + border_width = GTK_CONTAINER (fixed)->border_width; + + children = fixed->children; + while (children) + { + child = children->data; + children = children->next; + + if (GTK_WIDGET_VISIBLE (child->widget)) + { + child_allocation.x = child->x + border_width; + child_allocation.y = child->y + border_width; + child_allocation.width = child->widget->requisition.width; + child_allocation.height = child->widget->requisition.height; + gtk_widget_size_allocate (child->widget, &child_allocation); + } + } +} + +static void +gtk_fixed_paint (GtkWidget *widget, + GdkRectangle *area) +{ + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_FIXED (widget)); + g_return_if_fail (area != NULL); + + if (GTK_WIDGET_DRAWABLE (widget)) + gdk_window_clear_area (widget->window, + area->x, area->y, + area->width, area->height); +} + +static void +gtk_fixed_draw (GtkWidget *widget, + GdkRectangle *area) +{ + GtkFixed *fixed; + GtkFixedChild *child; + GdkRectangle child_area; + GList *children; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_FIXED (widget)); + + if (GTK_WIDGET_DRAWABLE (widget)) + { + fixed = GTK_FIXED (widget); + gtk_fixed_paint (widget, area); + + children = fixed->children; + 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_fixed_expose (GtkWidget *widget, + GdkEventExpose *event) +{ + GtkFixed *fixed; + GtkFixedChild *child; + GdkEventExpose child_event; + GList *children; + + g_return_val_if_fail (widget != NULL, FALSE); + g_return_val_if_fail (GTK_IS_FIXED (widget), FALSE); + g_return_val_if_fail (event != NULL, FALSE); + + if (GTK_WIDGET_DRAWABLE (widget)) + { + fixed = GTK_FIXED (widget); + + child_event = *event; + + children = fixed->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); + } + } + + return FALSE; +} + +static void +gtk_fixed_add (GtkContainer *container, + GtkWidget *widget) +{ + g_return_if_fail (container != NULL); + g_return_if_fail (GTK_IS_FIXED (container)); + g_return_if_fail (widget != NULL); + + gtk_fixed_put (GTK_FIXED (container), widget, 0, 0); +} + +static void +gtk_fixed_remove (GtkContainer *container, + GtkWidget *widget) +{ + GtkFixed *fixed; + GtkFixedChild *child; + GList *children; + + g_return_if_fail (container != NULL); + g_return_if_fail (GTK_IS_FIXED (container)); + g_return_if_fail (widget != NULL); + + fixed = GTK_FIXED (container); + + children = fixed->children; + while (children) + { + child = children->data; + + if (child->widget == widget) + { + gtk_widget_unparent (widget); + + fixed->children = g_list_remove_link (fixed->children, children); + g_list_free (children); + g_free (child); + + if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (container)) + gtk_widget_queue_resize (GTK_WIDGET (container)); + + break; + } + + children = children->next; + } +} + +static void +gtk_fixed_foreach (GtkContainer *container, + GtkCallback callback, + gpointer callback_data) +{ + GtkFixed *fixed; + GtkFixedChild *child; + GList *children; + + g_return_if_fail (container != NULL); + g_return_if_fail (GTK_IS_FIXED (container)); + g_return_if_fail (callback != NULL); + + fixed = GTK_FIXED (container); + + children = fixed->children; + while (children) + { + child = children->data; + children = children->next; + + (* callback) (child->widget, callback_data); + } +} |