/* -*- 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 * * 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 */ #ifndef E_TEXT_H #define E_TEXT_H #include #include "e-text-event-processor.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 currently ignored in the AA version: * editable boolean RW Can this item be edited * 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 = "...". * line_wrap boolean RW Line wrap when not editing. * max_line_wrap int RW Number of lines possible when doing line wrap. * * These are not implemented yet: * background boolean RW Draw a background rectangle. * background_on_edit boolean RW Draw a background when editing. */ #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. */ gboolean editable; /* Item is editable */ gboolean editing; /* Item is currently being edited */ int xofs_edit; /* Offset because of editing */ /* This needs to be reworked a bit once we get line wrapping. */ int selection_start; /* Start of selection */ int selection_end; /* End of selection */ gboolean select_by_word; /* Current selection is by word */ /* This section is for drag scrolling and blinking cursor. */ gint timeout_id; /* Current timeout id for scrolling */ GTimer *timer; /* Timer for blinking cursor and scrolling */ gint lastx, lasty; /* Last x and y motion events */ gint last_state; /* Last state */ gulong scroll_start; /* Starting time for scroll (microseconds) */ gint show_cursor; /* Is cursor currently shown */ gboolean button_down; /* Is mouse button 1 down */ ETextEventProcessor *tep; /* Text Event Processor */ GtkWidget *invisible; /* For selection handling */ gboolean has_selection; /* TRUE if we have the selection */ gchar *primary_selection; /* Primary selection text */ gint primary_length; /* Primary selection text length */ gchar *clipboard_selection; /* Clipboard selection text */ gint clipboard_length; /* Clipboard selection text length*/ guint pointer_in : 1; /* Is the pointer currently over us? */ guint default_cursor_shown : 1; /* Is the default cursor currently shown? */ guint line_wrap : 1; /* Do line wrap */ gint max_lines; /* Max number of lines (-1 = infinite) */ GdkCursor *default_cursor; /* Default cursor (arrow) */ GdkCursor *i_cursor; /* I beam cursor */ }; struct _ETextClass { GnomeCanvasItemClass parent_class; void (* resize) (EText *text); void (* change) (EText *text); }; /* Standard Gtk function */ GtkType e_text_get_type (void); END_GNOME_DECLS #endif