Pileus Git - ~andy/gtk/blob - gtk/gtkpreview.h

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the Free
  16  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17  */
  18 #ifndef __GTK_PREVIEW_H__
  19 #define __GTK_PREVIEW_H__
  20
  21
  22 #include <gtk/gtkwidget.h>
  23
  24
  25 #ifdef __cplusplus
  26 extern "C" {
  27 #endif /* __cplusplus */
  28
  29
  30 #define GTK_PREVIEW(obj)          GTK_CHECK_CAST (obj, gtk_preview_get_type (), GtkPreview)
  31 #define GTK_PREVIEW_CLASS(klass)  GTK_CHECK_CLASS_CAST (klass, gtk_preview_get_type (), GtkPreviewClass)
  32 #define GTK_IS_PREVIEW(obj)       GTK_CHECK_TYPE (obj, gtk_preview_get_type ())
  33
  34
  35 typedef struct _GtkPreview       GtkPreview;
  36 typedef struct _GtkPreviewInfo   GtkPreviewInfo;
  37 typedef union  _GtkDitherInfo    GtkDitherInfo;
  38 typedef struct _GtkPreviewClass  GtkPreviewClass;
  39
  40 struct _GtkPreview
  41 {
  42   GtkWidget widget;
  43
  44   guchar *buffer;
  45   guint16 buffer_width;
  46   guint16 buffer_height;
  47
  48   guint type : 1;
  49   guint expand : 1;
  50 };
  51
  52 struct _GtkPreviewInfo
  53 {
  54   GdkVisual *visual;
  55   GdkColormap *cmap;
  56
  57   gulong *color_pixels;
  58   gulong *gray_pixels;
  59   gulong *reserved_pixels;
  60
  61   gulong *lookup_red;
  62   gulong *lookup_green;
  63   gulong *lookup_blue;
  64
  65   GtkDitherInfo *dither_red;
  66   GtkDitherInfo *dither_green;
  67   GtkDitherInfo *dither_blue;
  68   GtkDitherInfo *dither_gray;
  69   guchar ***dither_matrix;
  70
  71   guint nred_shades;
  72   guint ngreen_shades;
  73   guint nblue_shades;
  74   guint ngray_shades;
  75   guint nreserved;
  76
  77   guint bpp;
  78   gint cmap_alloced;
  79   gdouble gamma;
  80 };
  81
  82 union _GtkDitherInfo
  83 {
  84   gushort s[2];
  85   guchar c[4];
  86 };
  87
  88 struct _GtkPreviewClass
  89 {
  90   GtkWidgetClass parent_class;
  91
  92   GtkPreviewInfo info;
  93
  94   GdkImage *image;
  95 };
  96
  97
  98 guint           gtk_preview_get_type           (void);
  99 void            gtk_preview_uninit             (void);
 100 GtkWidget*      gtk_preview_new                (GtkPreviewType   type);
 101 void            gtk_preview_size               (GtkPreview      *preview,
 102                                                 gint             width,
 103                                                 gint             height);
 104 void            gtk_preview_put                (GtkPreview      *preview,
 105                                                 GdkWindow       *window,
 106                                                 GdkGC           *gc,
 107                                                 gint             srcx,
 108                                                 gint             srcy,
 109                                                 gint             destx,
 110                                                 gint             desty,
 111                                                 gint             width,
 112                                                 gint             height);
 113 void            gtk_preview_put_row            (GtkPreview      *preview,
 114                                                 guchar          *src,
 115                                                 guchar          *dest,
 116                                                 gint             x,
 117                                                 gint             y,
 118                                                 gint             w);
 119 void            gtk_preview_draw_row           (GtkPreview      *preview,
 120                                                 guchar          *data,
 121                                                 gint             x,
 122                                                 gint             y,
 123                                                 gint             w);
 124 void            gtk_preview_set_expand         (GtkPreview      *preview,
 125                                                 gint             expand);
 126
 127 void            gtk_preview_set_gamma          (double           gamma);
 128 void            gtk_preview_set_color_cube     (guint            nred_shades,
 129                                                 guint            ngreen_shades,
 130                                                 guint            nblue_shades,
 131                                                 guint            ngray_shades);
 132 void            gtk_preview_set_install_cmap   (gint             install_cmap);
 133 void            gtk_preview_set_reserved       (gint             nreserved);
 134 GdkVisual*      gtk_preview_get_visual         (void);
 135 GdkColormap*    gtk_preview_get_cmap           (void);
 136 GtkPreviewInfo* gtk_preview_get_info           (void);
 137
 138
 139 #ifdef __cplusplus
 140 }
 141 #endif /* __cplusplus */
 142
 143
 144 #endif /* __GTK_PREVIEW_H__ */