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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation
* All rights reserved.
*
* This file is part of the Gnome Library.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* published by the Free Software Foundation; either the
*
* This program 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 General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* License along with the Gnome Library; see the file COPYING.LIB. If not,
*/
/*
@NOTATION@
*/
/* Text item type for GnomeCanvas widget
*
* GnomeCanvas is basically a port of the Tk toolkit's most excellent canvas widget. Tk is
* copyrighted by the Regents of the University of California, Sun Microsystems, and other parties.
*
*
* Author: Federico Mena <federico@nuclecu.unam.mx>
* Port to Pango co-done by Gergõ Érdi <cactus@cactus.rulez.org>
*/
#ifndef GNOME_CANVAS_TEXT_H
#define GNOME_CANVAS_TEXT_H
#include <libgnomecanvas/gnome-canvas.h>
G_BEGIN_DECLS
/* Text item for the canvas. Text items are positioned by an anchor point and an anchor direction.
*
* A clipping rectangle may be specified for the text. The rectangle is anchored at the text's anchor
* point, and is specified by clipping width and height parameters. If the clipping rectangle is
* enabled, it will clip the text.
*
* In addition, x and y offset values may be specified. These specify an offset from the anchor
* position. If used in conjunction with the clipping rectangle, these could be used to implement
* simple scrolling of the text within the clipping rectangle.
*
* Properties marked with [*] also have _set properties associated
* with them, that determine if the specified value should be used
* instead of the default (style-defined) values
*
* The following object arguments are available:
*
* name type read/write description
* ------------------------------------------------------------------------------------------
* text string RW The string of the text label
* markup string W A Pango markup string for the text label
*
* x gdouble RW X coordinate of anchor point
* y gdouble RW Y coordinate of anchor point
*
* font string W A string describing the font
* font_desc PangoFontDescription* RW Pointer to a PangoFontDescriptor
* attributes PangoAttrList* RW Pointer to a Pango attribute list
* style PangoStyle RW Pango style of font to use [*]
* variant PangoVariant RW Pango variant of font to use [*]
* weight gint RW Pango weight of font to use [*]
* stretch PangoStretch RW Pango stretch of font to use [*]
* size gint RW Size (in pixels) of font [*]
* size_points gdouble RW Size (in points) of font
* scale gdouble RW Ratio to scale font [*]
*
* justification GtkJustification RW Justification for multiline text
* clip_width gdouble RW Width of clip rectangle
* clip_height gdouble RW Height of clip rectangle
* clip boolean RW Use clipping rectangle?
* x_offset gdouble RW Horizontal offset distance from anchor position
* y_offset gdouble RW Vertical offset distance from anchor position
*
* text_width gdouble R Used to query the width of the rendered text
* text_height gdouble R Used to query the rendered height of the text
*
* fill_color string W X color specification for text
* fill_color_gdk GdkColor* RW Pointer to an allocated GdkColor
* fill_color_rgba guint RW RGBA value used for AA color.
*/
#define GNOME_TYPE_CANVAS_TEXT (gnome_canvas_text_get_type ())
#define GNOME_CANVAS_TEXT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GNOME_TYPE_CANVAS_TEXT, GnomeCanvasText))
#define GNOME_CANVAS_TEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GNOME_TYPE_CANVAS_TEXT, GnomeCanvasTextClass))
#define GNOME_IS_CANVAS_TEXT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GNOME_TYPE_CANVAS_TEXT))
#define GNOME_IS_CANVAS_TEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GNOME_TYPE_CANVAS_TEXT))
#define GNOME_CANVAS_TEXT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GNOME_TYPE_CANVAS_TEXT, GnomeCanvasTextClass))
typedef struct _GnomeCanvasText GnomeCanvasText;
typedef struct _GnomeCanvasTextClass GnomeCanvasTextClass;
struct _GnomeCanvasText {
GnomeCanvasItem item;
PangoFontDescription *font_desc; /* Font description for text */
PangoAttrList *attr_list; /* Attribute list of the text (caching) */
PangoUnderline underline;
gboolean strikethrough;
gint rise;
gdouble scale;
gchar *text; /* Text to display */
PangoLayout *layout; /* The PangoLayout containing the text */
gdouble x, y; /* Position at anchor */
gdouble clip_width; /* Width of optional clip rectangle */
gdouble clip_height; /* Height of optional clip rectangle */
gdouble xofs, yofs; /* Text offset distance from anchor position */
gdouble affine[6]; /* The item -> canvas affine */ /*AA */
GtkJustification justification; /* Justification for text */
gint cx, cy; /* Top-left canvas coordinates for text */
gint clip_cx, clip_cy; /* Top-left canvas coordinates for clip rectangle */
gint clip_cwidth, clip_cheight; /* Size of clip rectangle in pixels */
gint max_width; /* Maximum width of text lines */
gint height; /* Rendered text height in pixels */
guint32 rgba; /* RGBA color for text */ /*AA */
guint clip : 1; /* Use clip rectangle? */
guint underline_set : 1; /* Apply specified underline style? */
guint strike_set : 1; /* Apply specified strikethrough style? */
guint rise_set : 1; /* Apply specified ascension/descension? */
guint scale_set : 1; /* Apply specified font scaling ratio? */
};
struct _GnomeCanvasTextClass {
GnomeCanvasItemClass parent_class;
};
/* Standard Gtk function */
GType gnome_canvas_text_get_type (void) G_GNUC_CONST;
G_END_DECLS
#endif
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