libfoocanvas/foo-canvas-rect-ellipse.h

   1 /*
   2  * Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation
   3  * All rights reserved.
   4  *
   5  * This file is part of the Gnome Library.
   6  *
   7  * The Gnome Library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Library General Public License as
   9  * published by the Free Software Foundation; either version 2 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * The Gnome Library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Library General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Library General Public
  18  * License along with the Gnome Library; see the file COPYING.LIB.  If not,
  19  * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  20  * Boston, MA 02111-1307, USA.
  21  */
  22 /*
  23   @NOTATION@
  24  */
  25 /* Rectangle and ellipse item types for FooCanvas widget
  26  *
  27  * FooCanvas is basically a port of the Tk toolkit's most excellent canvas widget.  Tk is
  28  * copyrighted by the Regents of the University of California, Sun Microsystems, and other parties.
  29  *
  30  *
  31  * Author: Federico Mena <federico@nuclecu.unam.mx>
  32  */
  33
  34 #ifndef FOO_CANVAS_RECT_ELLIPSE_H
  35 #define FOO_CANVAS_RECT_ELLIPSE_H
  36
  37
  38 #include <libfoocanvas/foo-canvas.h>
  39
  40 G_BEGIN_DECLS
  41
  42
  43 /* Base class for rectangle and ellipse item types.  These are defined by their top-left and
  44  * bottom-right corners.  Rectangles and ellipses share the following arguments:
  45  *
  46  * name                 type            read/write      description
  47  * ------------------------------------------------------------------------------------------
  48  * x1                   double          RW              Leftmost coordinate of rectangle or ellipse
  49  * y1                   double          RW              Topmost coordinate of rectangle or ellipse
  50  * x2                   double          RW              Rightmost coordinate of rectangle or ellipse
  51  * y2                   double          RW              Bottommost coordinate of rectangle or ellipse
  52  * fill_color           string          W               X color specification for fill color,
  53  *                                                      or NULL pointer for no color (transparent)
  54  * fill_color_gdk       GdkColor*       RW              Allocated GdkColor for fill
  55  * outline_color        string          W               X color specification for outline color,
  56  *                                                      or NULL pointer for no color (transparent)
  57  * outline_color_gdk    GdkColor*       RW              Allocated GdkColor for outline
  58  * fill_stipple         GdkBitmap*      RW              Stipple pattern for fill
  59  * outline_stipple      GdkBitmap*      RW              Stipple pattern for outline
  60  * width_pixels         uint            RW              Width of the outline in pixels.  The outline will
  61  *                                                      not be scaled when the canvas zoom factor is changed.
  62  * width_units          double          RW              Width of the outline in canvas units.  The outline
  63  *                                                      will be scaled when the canvas zoom factor is changed.
  64  */
  65
  66
  67 #define FOO_TYPE_CANVAS_RE            (foo_canvas_re_get_type ())
  68 #define FOO_CANVAS_RE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), FOO_TYPE_CANVAS_RE, FooCanvasRE))
  69 #define FOO_CANVAS_RE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), FOO_TYPE_CANVAS_RE, FooCanvasREClass))
  70 #define FOO_IS_CANVAS_RE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), FOO_TYPE_CANVAS_RE))
  71 #define FOO_IS_CANVAS_RE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), FOO_TYPE_CANVAS_RE))
  72 #define FOO_CANVAS_RE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), FOO_TYPE_CANVAS_RE, FooCanvasREClass))
  73
  74
  75 typedef struct _FooCanvasRE      FooCanvasRE;
  76 typedef struct _FooCanvasREClass FooCanvasREClass;
  77
  78 struct _FooCanvasRE {
  79         FooCanvasItem item;
  80
  81         GdkBitmap *fill_stipple;        /* Stipple for fill */
  82         GdkBitmap *outline_stipple;     /* Stipple for outline */
  83
  84         gulong fill_pixel;              /* Fill color */
  85         gulong outline_pixel;           /* Outline color */
  86
  87         double x1, y1, x2, y2;          /* Corners of item */
  88         double width;                   /* Outline width */
  89
  90         guint fill_color;               /* Fill color, RGBA */
  91         guint outline_color;            /* Outline color, RGBA */
  92
  93         /* Configuration flags */
  94
  95         unsigned int fill_set : 1;      /* Is fill color set? */
  96         unsigned int outline_set : 1;   /* Is outline color set? */
  97         unsigned int width_pixels : 1;  /* Is outline width specified in pixels or units? */
  98         unsigned int aa: 1; /* Enable anti-alias for this item */
  99 };
 100
 101 struct _FooCanvasREClass {
 102         FooCanvasItemClass parent_class;
 103 };
 104
 105
 106 /* Standard Gtk function */
 107 GType foo_canvas_re_get_type (void) G_GNUC_CONST;
 108
 109
 110 /* Rectangle item.  No configurable or queryable arguments are available (use those in
 111  * FooCanvasRE).
 112  */
 113
 114
 115 #define FOO_TYPE_CANVAS_RECT            (foo_canvas_rect_get_type ())
 116 #define FOO_CANVAS_RECT(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), FOO_TYPE_CANVAS_RECT, FooCanvasRect))
 117 #define FOO_CANVAS_RECT_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), FOO_TYPE_CANVAS_RECT, FooCanvasRectClass))
 118 #define FOO_IS_CANVAS_RECT(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), FOO_TYPE_CANVAS_RECT))
 119 #define FOO_IS_CANVAS_RECT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), FOO_TYPE_CANVAS_RECT))
 120 #define FOO_CANVAS_RECT_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), FOO_TYPE_CANVAS_RECT, FooCanvasRectClass))
 121
 122
 123 typedef struct _FooCanvasRect FooCanvasRect;
 124 typedef struct _FooCanvasRectPrivate FooCanvasRectPrivate;
 125 typedef struct _FooCanvasRectClass FooCanvasRectClass;
 126
 127 struct _FooCanvasRect {
 128         FooCanvasRE re;
 129         FooCanvasRectPrivate *priv;
 130 };
 131
 132 struct _FooCanvasRectClass {
 133         FooCanvasREClass parent_class;
 134 };
 135
 136
 137 /* Standard Gtk function */
 138 GType foo_canvas_rect_get_type (void) G_GNUC_CONST;
 139
 140
 141 /* Ellipse item.  No configurable or queryable arguments are available (use those in
 142  * FooCanvasRE).
 143  */
 144
 145
 146 #define FOO_TYPE_CANVAS_ELLIPSE            (foo_canvas_ellipse_get_type ())
 147 #define FOO_CANVAS_ELLIPSE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), FOO_TYPE_CANVAS_ELLIPSE, FooCanvasEllipse))
 148 #define FOO_CANVAS_ELLIPSE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), FOO_TYPE_CANVAS_ELLIPSE, FooCanvasEllipseClass))
 149 #define FOO_IS_CANVAS_ELLIPSE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), FOO_TYPE_CANVAS_ELLIPSE))
 150 #define FOO_IS_CANVAS_ELLIPSE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), FOO_TYPE_CANVAS_ELLIPSE))
 151 #define FOO_CANVAS_ELLIPSE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), FOO_TYPE_CANVAS_ELLIPSE, FooCanvasEllipseClass))
 152
 153
 154 typedef struct _FooCanvasEllipse FooCanvasEllipse;
 155 typedef struct _FooCanvasEllipseClass FooCanvasEllipseClass;
 156
 157 struct _FooCanvasEllipse {
 158         FooCanvasRE re;
 159 };
 160
 161 struct _FooCanvasEllipseClass {
 162         FooCanvasREClass parent_class;
 163 };
 164
 165
 166 /* Standard Gtk function */
 167 GType foo_canvas_ellipse_get_type (void) G_GNUC_CONST;
 168
 169
 170 G_END_DECLS
 171
 172 #endif