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Diffstat (limited to 'widgets/e-text.h')
| -rw-r--r-- | widgets/e-text.h | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/widgets/e-text.h b/widgets/e-text.h new file mode 100644 index 0000000000..e14199f16e --- /dev/null +++ b/widgets/e-text.h @@ -0,0 +1,145 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ +/* EText - Text item for evolution. + * Copyright (C) 2000 Helix Code, Inc. + * + * Author: Chris Lahey <clahey@umich.edu> + * + * A majority of code taken from: + * + * 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. + * + * Copyright (C) 1998 The Free Software Foundation + * + * Author: Federico Mena <federico@nuclecu.unam.mx> */ + +#ifndef E_TEXT_H +#define E_TEXT_H + +#include <gnome.h> + + +BEGIN_GNOME_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. + * + * The following object arguments are available: + * + * name type read/write description + * ------------------------------------------------------------------------------------------ + * text string RW The string of the text label + * x double RW X coordinate of anchor point + * y double RW Y coordinate of anchor point + * font string W X logical font descriptor + * fontset string W X logical fontset descriptor + * font_gdk GdkFont* RW Pointer to a GdkFont + * anchor GtkAnchorType RW Anchor side for the text + * justification GtkJustification RW Justification for multiline text + * fill_color string W X color specification for text + * fill_color_gdk GdkColor* RW Pointer to an allocated GdkColor + * fill_stipple GdkBitmap* RW Stipple pattern for filling the text + * clip_width double RW Width of clip rectangle + * clip_height double RW Height of clip rectangle + * clip boolean RW Use clipping rectangle? + * x_offset double RW Horizontal offset distance from anchor position + * y_offset double RW Vertical offset distance from anchor position + * text_width double R Used to query the width of the rendered text + * text_height double R Used to query the rendered height of the text + * + * These are ignored in the AA version: + * use_ellipsis boolean RW Whether to use ellipsises if text gets cut off. Meaningless if clip == false. + * ellipsis string RW The characters to use as ellipsis. NULL = "...". + */ + +#define E_TYPE_TEXT (e_text_get_type ()) +#define E_TEXT(obj) (GTK_CHECK_CAST ((obj), E_TYPE_TEXT, EText)) +#define E_TEXT_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), E_TYPE_TEXT, ETextClass)) +#define E_IS_TEXT(obj) (GTK_CHECK_TYPE ((obj), E_TYPE_TEXT)) +#define E_IS_TEXT_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), E_TYPE_TEXT)) + + +typedef struct _EText EText; +typedef struct _ETextClass ETextClass; +typedef struct _ETextSuckFont ETextSuckFont; +typedef struct _ETextSuckChar ETextSuckChar; + +struct _ETextSuckChar { + int left_sb; + int right_sb; + int width; + int ascent; + int descent; + int bitmap_offset; /* in pixels */ +}; + +struct _ETextSuckFont { + guchar *bitmap; + gint bitmap_width; + gint bitmap_height; + gint ascent; + ETextSuckChar chars[256]; +}; + +struct _EText { + GnomeCanvasItem item; + + char *text; /* Text to display */ + gpointer lines; /* Text split into lines (private field) */ + int num_lines; /* Number of lines of text */ + + double x, y; /* Position at anchor */ + GdkFont *font; /* Font for text */ + GtkAnchorType anchor; /* Anchor side for text */ + GtkJustification justification; /* Justification for text */ + + double clip_width; /* Width of optional clip rectangle */ + double clip_height; /* Height of optional clip rectangle */ + + double xofs, yofs; /* Text offset distance from anchor position */ + + gulong pixel; /* Fill color */ + GdkBitmap *stipple; /* Stipple for text */ + GdkGC *gc; /* GC for drawing text */ + + int cx, cy; /* Top-left canvas coordinates for text */ + int clip_cx, clip_cy; /* Top-left canvas coordinates for clip rectangle */ + int clip_cwidth, clip_cheight; /* Size of clip rectangle in pixels */ + int max_width; /* Maximum width of text lines */ + int height; /* Rendered text height in pixels */ + + guint clip : 1; /* Use clip rectangle? */ + + /* Antialiased specific stuff follows */ + ETextSuckFont *suckfont; /* Sucked font */ + guint32 rgba; /* RGBA color for text */ + double affine[6]; /* The item -> canvas affine */ + + char *ellipsis; /* The ellipsis characters. NULL = "...". */ + double ellipsis_width; /* The width of the ellipsis. */ + gboolean use_ellipsis; /* Whether to use the ellipsis. */ +}; + +struct _ETextClass { + GnomeCanvasItemClass parent_class; +}; + + +/* Standard Gtk function */ +GtkType e_text_get_type (void); + + +END_GNOME_DECLS + +#endif |