gtk/gdk/directfb/gdkgc-directfb.c

/* GDK - The GIMP Drawing Kit
 * 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 Lesser 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

/*
 * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
 * file for a list of people on the GTK+ Team.
 */

/*
 * GTK+ DirectFB backend
 * Copyright (C) 2001-2002  convergence integrated media GmbH
 * Copyright (C) 2002-2004  convergence GmbH
 * Written by Denis Oliver Kropp <dok@convergence.de> and
 *            Sven Neumann <sven@convergence.de>
 */

#include <config.h>
#include "gdk.h"

#include <string.h>

#include "gdkdirectfb.h"
#include "gdkprivate-directfb.h"

#include "gdkgc.h"
#include "gdkfont.h"
#include "gdkpixmap.h"
#include "gdkregion-generic.h"

#include "gdkalias.h"

static void gdk_directfb_gc_get_values (GdkGC           *gc,
                                        GdkGCValues     *values);
static void gdk_directfb_gc_set_values (GdkGC           *gc,
                                        GdkGCValues     *values,
                                        GdkGCValuesMask  values_mask);
static void gdk_directfb_gc_set_dashes (GdkGC           *gc,
                                        gint             dash_offset,
                                        gint8            dash_list[],
                                        gint             n);

static void gdk_gc_directfb_class_init (GdkGCDirectFBClass *klass);
static void gdk_gc_directfb_finalize   (GObject            *object);


static gpointer parent_class = NULL;


GType
gdk_gc_directfb_get_type (void)
{
  static GType object_type = 0;

  if (!object_type)
    {
      static const GTypeInfo object_info =
      {
        sizeof (GdkGCDirectFBClass),
        (GBaseInitFunc) NULL,
        (GBaseFinalizeFunc) NULL,
        (GClassInitFunc) gdk_gc_directfb_class_init,
        NULL,           /* class_finalize */
        NULL,           /* class_data */
        sizeof (GdkGCDirectFB),
        0,              /* n_preallocs */
        (GInstanceInitFunc) NULL,
      };

      object_type = g_type_register_static (GDK_TYPE_GC,
                                            "GdkGCDirectFB",
                                            &object_info, 0);
    }

  return object_type;
}

static void
gdk_gc_directfb_class_init (GdkGCDirectFBClass *klass)
{
  GObjectClass *object_class = G_OBJECT_CLASS (klass);
  GdkGCClass   *gc_class     = GDK_GC_CLASS (klass);

  parent_class = g_type_class_peek_parent (klass);

  object_class->finalize = gdk_gc_directfb_finalize;

  gc_class->get_values = gdk_directfb_gc_get_values;
  gc_class->set_values = gdk_directfb_gc_set_values;
  gc_class->set_dashes = gdk_directfb_gc_set_dashes;
}

static void
gdk_gc_directfb_finalize (GObject *object)
{
  GdkGC         *gc      = GDK_GC (object);
  GdkGCDirectFB *private = GDK_GC_DIRECTFB (gc);

  if (private->clip_region)
    gdk_region_destroy (private->clip_region);
  if (private->values.clip_mask)
    g_object_unref (private->values.clip_mask);
  if (private->values.stipple)
    g_object_unref (private->values.stipple);
  if (private->values.tile)
    g_object_unref (private->values.tile);

  if (G_OBJECT_CLASS (parent_class)->finalize)
    G_OBJECT_CLASS (parent_class)->finalize (object);
}

GdkGC*
_gdk_directfb_gc_new (GdkDrawable     *drawable,
                      GdkGCValues     *values,
                      GdkGCValuesMask  values_mask)
{
  GdkGC         *gc;
  GdkGCDirectFB *private;

  g_return_val_if_fail (GDK_IS_DRAWABLE_IMPL_DIRECTFB (drawable), NULL);

  gc = GDK_GC (g_object_new (gdk_gc_directfb_get_type (), NULL));

  _gdk_gc_init (gc, drawable, values, values_mask);

  private = GDK_GC_DIRECTFB (gc);
#if 0
  private->values.background.pixel = 0;
  private->values.background.red   =
  private->values.background.green =
  private->values.background.blue  = 0;

  private->values.foreground.pixel = 0;
  private->values.foreground.red   =
  private->values.foreground.green =
  private->values.foreground.blue  = 0;
#endif

  private->values.cap_style = GDK_CAP_BUTT;

  gdk_directfb_gc_set_values (gc, values, values_mask);

  return gc;
}

static void
gdk_directfb_gc_get_values (GdkGC       *gc,
                            GdkGCValues *values)
{
  *values = GDK_GC_DIRECTFB (gc)->values;
}

#if 0
void
_gdk_windowing_gc_get_foreground (GdkGC    *gc,
                                  GdkColor *color)
{
  GdkGCDirectFB *private;
  private = GDK_GC_DIRECTFB (gc);
  *color =private->values.foreground;


}
#endif

static void
gdk_directfb_gc_set_values (GdkGC           *gc,
                            GdkGCValues     *values,
                            GdkGCValuesMask  values_mask)
{
  GdkGCDirectFB *private = GDK_GC_DIRECTFB (gc);

  if (values_mask & GDK_GC_FOREGROUND)
    {
      private->values.foreground = values->foreground;
      private->values_mask |= GDK_GC_FOREGROUND;
    }

  if (values_mask & GDK_GC_BACKGROUND)
    {
      private->values.background = values->background;
      private->values_mask |= GDK_GC_BACKGROUND;
    }

  if (values_mask & GDK_GC_FONT)
    {
      GdkFont *oldf = private->values.font;

      private->values.font = gdk_font_ref (values->font);
      private->values_mask |= GDK_GC_FONT;

      if (oldf)
        gdk_font_unref (oldf);
    }

  if (values_mask & GDK_GC_FUNCTION)
    {
      private->values.function = values->function;
      private->values_mask |= GDK_GC_FUNCTION;
    }

  if (values_mask & GDK_GC_FILL)
    {
      private->values.fill = values->fill;
      private->values_mask |= GDK_GC_FILL;
    }

  if (values_mask & GDK_GC_TILE)
    {
      GdkPixmap *oldpm = private->values.tile;

      if (values->tile)
        g_assert (GDK_PIXMAP_OBJECT (values->tile)->depth > 1);

      private->values.tile = values->tile ? g_object_ref (values->tile) : NULL;
      private->values_mask |= GDK_GC_TILE;

      if (oldpm)
        g_object_unref (oldpm);
    }

  if (values_mask & GDK_GC_STIPPLE)
    {
      GdkPixmap *oldpm = private->values.stipple;

      if (values->stipple)
        g_assert (GDK_PIXMAP_OBJECT (values->stipple)->depth == 1);

      private->values.stipple = (values->stipple ?
                                 g_object_ref (values->stipple) : NULL);
      private->values_mask |= GDK_GC_STIPPLE;

      if (oldpm)
        g_object_unref (oldpm);
    }

  if (values_mask & GDK_GC_CLIP_MASK)
    {
      GdkPixmap *oldpm = private->values.clip_mask;

      private->values.clip_mask = (values->clip_mask ?
                                   g_object_ref (values->clip_mask) : NULL);
      private->values_mask |= GDK_GC_CLIP_MASK;

      if (oldpm)
        g_object_unref (oldpm);

      if (private->clip_region)
        {
          gdk_region_destroy (private->clip_region);
          private->clip_region = NULL;
        }
    }

  if (values_mask & GDK_GC_SUBWINDOW)
    {
      private->values.subwindow_mode = values->subwindow_mode;
      private->values_mask |= GDK_GC_SUBWINDOW;
    }

  if (values_mask & GDK_GC_TS_X_ORIGIN)
    {
      private->values.ts_x_origin = values->ts_x_origin;
      private->values_mask |= GDK_GC_TS_X_ORIGIN;
    }

  if (values_mask & GDK_GC_TS_Y_ORIGIN)
    {
      private->values.ts_y_origin = values->ts_y_origin;
      private->values_mask |= GDK_GC_TS_Y_ORIGIN;
    }

  if (values_mask & GDK_GC_CLIP_X_ORIGIN)
    {
      private->values.clip_x_origin = GDK_GC (gc)->clip_x_origin = values->clip_x_origin;
      private->values_mask |= GDK_GC_CLIP_X_ORIGIN;
    }

  if (values_mask & GDK_GC_CLIP_Y_ORIGIN)
    {
      private->values.clip_y_origin = GDK_GC (gc)->clip_y_origin = values->clip_y_origin;
      private->values_mask |= GDK_GC_CLIP_Y_ORIGIN;
    }

  if (values_mask & GDK_GC_EXPOSURES)
    {
      private->values.graphics_exposures = values->graphics_exposures;
      private->values_mask |= GDK_GC_EXPOSURES;
    }

  if (values_mask & GDK_GC_LINE_WIDTH)
    {
      private->values.line_width = values->line_width;
      private->values_mask |= GDK_GC_LINE_WIDTH;
    }

  if (values_mask & GDK_GC_LINE_STYLE)
    {
      private->values.line_style = values->line_style;
      private->values_mask |= GDK_GC_LINE_STYLE;
    }

  if (values_mask & GDK_GC_CAP_STYLE)
    {
      private->values.cap_style = values->cap_style;
      private->values_mask |= GDK_GC_CAP_STYLE;
    }

  if (values_mask & GDK_GC_JOIN_STYLE)
    {
      private->values.join_style = values->join_style;
      private->values_mask |= GDK_GC_JOIN_STYLE;
    }
}

static void
gdk_directfb_gc_set_dashes (GdkGC *gc,
                            gint   dash_offset,
                            gint8  dash_list[],
                            gint   n)
{
  g_warning ("gdk_directfb_gc_set_dashes not implemented");
}

static void
gc_unset_clip_mask (GdkGC *gc)
{
  GdkGCDirectFB *data = GDK_GC_DIRECTFB (gc);

  if (data->values.clip_mask)
    {
      g_object_unref (data->values.clip_mask);
      data->values.clip_mask = NULL;
      data->values_mask &= ~ GDK_GC_CLIP_MASK;
    }
}


void
_gdk_windowing_gc_set_clip_region (GdkGC     *gc,
                        GdkRegion *region)
{
  GdkGCDirectFB *data;

  g_return_if_fail (gc != NULL);

  data = GDK_GC_DIRECTFB (gc);

  if (region == data->clip_region)
    return;

  if (data->clip_region)
    {
      gdk_region_destroy (data->clip_region);
      data->clip_region = NULL;
    }

  if (region)
    data->clip_region = gdk_region_copy (region);

  gc->clip_x_origin = 0;
  gc->clip_y_origin = 0;
  data->values.clip_x_origin = 0;
  data->values.clip_y_origin = 0;

  gc_unset_clip_mask (gc);
}

void
_gdk_windowing_gc_copy (GdkGC *dst_gc,
             GdkGC *src_gc)
{
  GdkGCDirectFB *dst_private;

  g_return_if_fail (dst_gc != NULL);
  g_return_if_fail (src_gc != NULL);

  dst_private = GDK_GC_DIRECTFB (dst_gc);

  if (dst_private->clip_region)
    gdk_region_destroy(dst_private->clip_region);

  if (dst_private->values_mask & GDK_GC_FONT)
    gdk_font_unref (dst_private->values.font);
  if (dst_private->values_mask & GDK_GC_TILE)
    g_object_unref (dst_private->values.tile);
  if (dst_private->values_mask & GDK_GC_STIPPLE)
    g_object_unref (dst_private->values.stipple);
  if (dst_private->values_mask & GDK_GC_CLIP_MASK)
    g_object_unref (dst_private->values.clip_mask);

  *dst_gc = *src_gc;
  if (dst_private->values_mask & GDK_GC_FONT)
    gdk_font_ref (dst_private->values.font);
  if (dst_private->values_mask & GDK_GC_TILE)
    g_object_ref (dst_private->values.tile);
  if (dst_private->values_mask & GDK_GC_STIPPLE)
    g_object_ref (dst_private->values.stipple);
  if (dst_private->values_mask & GDK_GC_CLIP_MASK)
    g_object_ref (dst_private->values.clip_mask);
  if (dst_private->clip_region)
    dst_private->clip_region = gdk_region_copy (dst_private->clip_region);
}

/**
 * gdk_gc_get_screen:
 * @gc: a #GdkGC.
 *
 * Gets the #GdkScreen for which @gc was created
 *
 * Returns: the #GdkScreen for @gc.
 *
 * Since: 2.2
 */
GdkScreen *  
gdk_gc_get_screen (GdkGC *gc)
{
  g_return_val_if_fail (GDK_IS_GC_DIRECTFB (gc), NULL);
  
  return _gdk_screen;
}
#define __GDK_GC_X11_C__
#include "gdkaliasdef.c"