forked from AuroraMiddleware/gtk
147 lines
4.2 KiB
C
147 lines
4.2 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 Library 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "gtkdrawingarea.h"
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static void gtk_drawing_area_class_init (GtkDrawingAreaClass *klass);
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static void gtk_drawing_area_init (GtkDrawingArea *darea);
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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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guint
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gtk_drawing_area_get_type ()
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{
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static guint drawing_area_type = 0;
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if (!drawing_area_type)
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{
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GtkTypeInfo drawing_area_info =
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{
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"GtkDrawingArea",
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sizeof (GtkDrawingArea),
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sizeof (GtkDrawingAreaClass),
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(GtkClassInitFunc) gtk_drawing_area_class_init,
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(GtkObjectInitFunc) gtk_drawing_area_init,
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(GtkArgFunc) NULL,
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};
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drawing_area_type = gtk_type_unique (gtk_widget_get_type (), &drawing_area_info);
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}
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return drawing_area_type;
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}
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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;
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widget_class = (GtkWidgetClass*) 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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GTK_WIDGET_SET_FLAGS (darea, GTK_BASIC);
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}
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GtkWidget*
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gtk_drawing_area_new ()
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{
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return GTK_WIDGET (gtk_type_new (gtk_drawing_area_get_type ()));
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}
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void
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gtk_drawing_area_size (GtkDrawingArea *darea,
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gint width,
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gint height)
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{
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g_return_if_fail (darea != NULL);
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g_return_if_fail (GTK_IS_DRAWING_AREA (darea));
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GTK_WIDGET (darea)->requisition.width = width;
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GTK_WIDGET (darea)->requisition.height = height;
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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;
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GdkWindowAttr attributes;
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gint attributes_mask;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_DRAWING_AREA (widget));
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darea = GTK_DRAWING_AREA (widget);
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GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
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attributes.window_type = GDK_WINDOW_CHILD;
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attributes.x = widget->allocation.x;
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attributes.y = widget->allocation.y;
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attributes.width = widget->allocation.width;
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attributes.height = widget->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.colormap = gtk_widget_get_colormap (widget);
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attributes.event_mask = gtk_widget_get_events (widget);
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attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
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widget->window = gdk_window_new (widget->parent->window, &attributes, attributes_mask);
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gdk_window_set_user_data (widget->window, darea);
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widget->style = gtk_style_attach (widget->style, widget->window);
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gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
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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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GdkEventConfigure event;
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g_return_if_fail (widget != NULL);
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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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widget->allocation = *allocation;
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if (GTK_WIDGET_REALIZED (widget))
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{
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gdk_window_move_resize (widget->window,
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allocation->x, allocation->y,
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allocation->width, allocation->height);
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event.type = GDK_CONFIGURE;
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event.window = widget->window;
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event.x = allocation->x;
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event.y = allocation->y;
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event.width = allocation->width;
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event.height = allocation->height;
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gtk_widget_event (widget, (GdkEvent*) &event);
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}
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}
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