forked from AuroraMiddleware/gtk
143 lines
4.4 KiB
C
143 lines
4.4 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "config.h"
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#include "gtkdrawingarea.h"
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#include "gtkintl.h"
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static void gtk_drawing_area_realize (GtkWidget *widget);
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static void gtk_drawing_area_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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static void gtk_drawing_area_send_configure (GtkDrawingArea *darea);
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G_DEFINE_TYPE (GtkDrawingArea, gtk_drawing_area, GTK_TYPE_WIDGET)
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static void
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gtk_drawing_area_class_init (GtkDrawingAreaClass *class)
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{
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
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widget_class->realize = gtk_drawing_area_realize;
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widget_class->size_allocate = gtk_drawing_area_size_allocate;
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}
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static void
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gtk_drawing_area_init (GtkDrawingArea *darea)
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{
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darea->draw_data = NULL;
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}
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GtkWidget*
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gtk_drawing_area_new (void)
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{
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return g_object_new (GTK_TYPE_DRAWING_AREA, NULL);
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}
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static void
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gtk_drawing_area_realize (GtkWidget *widget)
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{
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GtkDrawingArea *darea = GTK_DRAWING_AREA (widget);
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GtkAllocation allocation;
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GdkWindow *window;
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GdkWindowAttr attributes;
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gint attributes_mask;
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if (!gtk_widget_get_has_window (widget))
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{
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GTK_WIDGET_CLASS (gtk_drawing_area_parent_class)->realize (widget);
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}
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else
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{
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gtk_widget_set_realized (widget, TRUE);
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gtk_widget_get_allocation (widget, &allocation);
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attributes.window_type = GDK_WINDOW_CHILD;
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attributes.x = allocation.x;
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attributes.y = allocation.y;
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attributes.width = allocation.width;
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attributes.height = allocation.height;
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attributes.wclass = GDK_INPUT_OUTPUT;
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attributes.visual = gtk_widget_get_visual (widget);
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attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
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attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
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window = gdk_window_new (gtk_widget_get_parent_window (widget),
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&attributes, attributes_mask);
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gdk_window_set_user_data (window, darea);
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gtk_widget_set_window (widget, window);
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gtk_widget_style_attach (widget);
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gtk_style_set_background (gtk_widget_get_style (widget), window, GTK_STATE_NORMAL);
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}
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gtk_drawing_area_send_configure (GTK_DRAWING_AREA (widget));
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}
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static void
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gtk_drawing_area_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation)
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{
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g_return_if_fail (GTK_IS_DRAWING_AREA (widget));
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g_return_if_fail (allocation != NULL);
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gtk_widget_set_allocation (widget, allocation);
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if (gtk_widget_get_realized (widget))
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{
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if (gtk_widget_get_has_window (widget))
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gdk_window_move_resize (gtk_widget_get_window (widget),
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allocation->x, allocation->y,
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allocation->width, allocation->height);
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gtk_drawing_area_send_configure (GTK_DRAWING_AREA (widget));
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}
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}
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static void
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gtk_drawing_area_send_configure (GtkDrawingArea *darea)
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{
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GtkAllocation allocation;
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GtkWidget *widget;
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GdkEvent *event = gdk_event_new (GDK_CONFIGURE);
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widget = GTK_WIDGET (darea);
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gtk_widget_get_allocation (widget, &allocation);
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event->configure.window = g_object_ref (gtk_widget_get_window (widget));
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event->configure.send_event = TRUE;
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event->configure.x = allocation.x;
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event->configure.y = allocation.y;
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event->configure.width = allocation.width;
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event->configure.height = allocation.height;
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gtk_widget_event (widget, event);
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gdk_event_free (event);
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}
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