nodist/AdgText/goocanvastext.h

   1 /*
   2  * GooCanvas. Copyright (C) 2005 Damon Chaplin.
   3  * Released under the GNU LGPL license. See COPYING for details.
   4  *
   5  * goocanvastext.h - text item.
   6  */
   7 #ifndef __GOO_CANVAS_TEXT_H__
   8 #define __GOO_CANVAS_TEXT_H__
   9
  10 #include <gtk/gtk.h>
  11 #include "goocanvasitemsimple.h"
  12
  13 G_BEGIN_DECLS
  14
  15
  16 /* This is the data used by both model and view classes. */
  17 typedef struct _GooCanvasTextData   GooCanvasTextData;
  18 struct _GooCanvasTextData
  19 {
  20   gchar *text;
  21   gdouble x, y, width;
  22   guint use_markup              : 1;
  23   guint anchor                  : 5;    /* GtkAnchorType */
  24   guint alignment               : 3;    /* PangoAlignment */
  25   guint ellipsize               : 3;    /* PangoEllipsizeMode */
  26   guint wrap                    : 3;    /* PangoWrapMode */
  27 };
  28
  29
  30 #define GOO_TYPE_CANVAS_TEXT            (goo_canvas_text_get_type ())
  31 #define GOO_CANVAS_TEXT(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GOO_TYPE_CANVAS_TEXT, GooCanvasText))
  32 #define GOO_CANVAS_TEXT_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GOO_TYPE_CANVAS_TEXT, GooCanvasTextClass))
  33 #define GOO_IS_CANVAS_TEXT(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GOO_TYPE_CANVAS_TEXT))
  34 #define GOO_IS_CANVAS_TEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GOO_TYPE_CANVAS_TEXT))
  35 #define GOO_CANVAS_TEXT_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GOO_TYPE_CANVAS_TEXT, GooCanvasTextClass))
  36
  37
  38 typedef struct _GooCanvasText       GooCanvasText;
  39 typedef struct _GooCanvasTextClass  GooCanvasTextClass;
  40
  41 /**
  42  * GooCanvasText
  43  *
  44  * The #GooCanvasText-struct struct contains private data only.
  45  */
  46 struct _GooCanvasText
  47 {
  48   GooCanvasItemSimple parent;
  49
  50   GooCanvasTextData *text_data;
  51   gdouble layout_width;
  52 };
  53
  54 struct _GooCanvasTextClass
  55 {
  56   GooCanvasItemSimpleClass parent_class;
  57
  58   /*< private >*/
  59
  60   /* Padding for future expansion */
  61   void (*_goo_canvas_reserved1) (void);
  62   void (*_goo_canvas_reserved2) (void);
  63   void (*_goo_canvas_reserved3) (void);
  64   void (*_goo_canvas_reserved4) (void);
  65 };
  66
  67
  68 GType               goo_canvas_text_get_type  (void) G_GNUC_CONST;
  69
  70 GooCanvasItem*      goo_canvas_text_new       (GooCanvasItem      *parent,
  71                                                const char         *string,
  72                                                gdouble             x,
  73                                                gdouble             y,
  74                                                gdouble             width,
  75                                                GtkAnchorType       anchor,
  76                                                ...);
  77
  78 void    goo_canvas_text_get_natural_extents   (GooCanvasText  *text,
  79                                                PangoRectangle *ink_rect,
  80                                                PangoRectangle *logical_rect);
  81
  82
  83 #define GOO_TYPE_CANVAS_TEXT_MODEL            (goo_canvas_text_model_get_type ())
  84 #define GOO_CANVAS_TEXT_MODEL(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GOO_TYPE_CANVAS_TEXT_MODEL, GooCanvasTextModel))
  85 #define GOO_CANVAS_TEXT_MODEL_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GOO_TYPE_CANVAS_TEXT_MODEL, GooCanvasTextModelClass))
  86 #define GOO_IS_CANVAS_TEXT_MODEL(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GOO_TYPE_CANVAS_TEXT_MODEL))
  87 #define GOO_IS_CANVAS_TEXT_MODEL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GOO_TYPE_CANVAS_TEXT_MODEL))
  88 #define GOO_CANVAS_TEXT_MODEL_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GOO_TYPE_CANVAS_TEXT_MODEL, GooCanvasTextModelClass))
  89
  90
  91 typedef struct _GooCanvasTextModel       GooCanvasTextModel;
  92 typedef struct _GooCanvasTextModelClass  GooCanvasTextModelClass;
  93
  94 /**
  95  * GooCanvasTextModel
  96  *
  97  * The #GooCanvasTextModel-struct struct contains private data only.
  98  */
  99 struct _GooCanvasTextModel
 100 {
 101   GooCanvasItemModelSimple parent_object;
 102
 103   GooCanvasTextData text_data;
 104 };
 105
 106 struct _GooCanvasTextModelClass
 107 {
 108   GooCanvasItemModelSimpleClass parent_class;
 109
 110   /*< private >*/
 111
 112   /* Padding for future expansion */
 113   void (*_goo_canvas_reserved1) (void);
 114   void (*_goo_canvas_reserved2) (void);
 115   void (*_goo_canvas_reserved3) (void);
 116   void (*_goo_canvas_reserved4) (void);
 117 };
 118
 119
 120 GType               goo_canvas_text_model_get_type  (void) G_GNUC_CONST;
 121
 122 GooCanvasItemModel* goo_canvas_text_model_new (GooCanvasItemModel *parent,
 123                                                const char         *string,
 124                                                gdouble             x,
 125                                                gdouble             y,
 126                                                gdouble             width,
 127                                                GtkAnchorType       anchor,
 128                                                ...);
 129
 130
 131 G_END_DECLS
 132
 133 #endif /* __GOO_CANVAS_TEXT_H__ */