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15e0004b10
gtk2/gtk/gtktexttag.c
Havoc Pennington 15e0004b10 Free the filename of the module file. 
2000-11-13  Havoc Pennington  <hp@redhat.com>

	* gtk/gtkimmodule.c (gtk_im_module_init): Free the filename of
	the module file.

	* gtk/gtktexttag.c (gtk_text_attributes_copy): fix memory leak of
	dest->language

	* gtk/testtext.c: Test pixels above/below/inside paragraphs
	settings

	* gtk/gtktextview.c: Implement object args and setters/getters for
	all the aspects of the GtkTextAttributes that are not set from
	GtkWidget attributes. This is spacing, justification, margins,
	etc.

	(gtk_text_view_set_arg)
	(gtk_text_view_get_arg): implement get/set for editable, wrap mode
	args
	(gtk_text_view_class_init): Add args for justify, left_margin,
	right_margin, indent, and tabs


	* gtk/gtktextlayout.c (set_para_values): fix to display indent
	attribute properly

	* gtk/gtktexttag.c: Remove left_wrapped_line_margin attribute,
	replace with indent attribute

	* gtk/gtktextlayout.c (set_para_values): multiply indent by
	PANGO_SCALE

	* gtk/gtktextdisplay.c (render_para): Use PangoLayoutIter,
	rearranging code to do that
	(gtk_text_layout_draw): Pass in the y for the whole LineDisplay,
	i.e. don't subtract the top_margin first, just to keep
	all margin-futzing in one place.

	* gdk/gdkpango.c (gdk_draw_layout): Use PangoLayoutIter

	* gtk/gtktextlayout.c (gtk_text_layout_get_iter_location): Remove
	special case of last line, Pango now handles this itself.
	(gtk_text_layout_get_iter_at_pixel): Fix incorrect clamp of the
	Y coordinate
	(gtk_text_layout_move_iter_to_x): port to use PangoLayoutIter
	(find_display_line_above): wasn't moving the byte index as it
	iterated over lines, so always returned byte 0. Also, port to use
	PangoLayoutIter.
	(find_display_line_below): same problem as
	find_display_line_above. Also, port to use PangoLayoutIter.
2000-11-13 18:49:52 +00:00

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/* gtktexttag.c - text tag object
*
* Copyright (c) 1992-1994 The Regents of the University of California.
* Copyright (c) 1994-1997 Sun Microsystems, Inc.
* Copyright (c) 2000 Red Hat, Inc.
* Tk -> Gtk port by Havoc Pennington <hp@redhat.com>
*
* This software is copyrighted by the Regents of the University of
* California, Sun Microsystems, Inc., and other parties. The
* following terms apply to all files associated with the software
* unless explicitly disclaimed in individual files.
*
* The authors hereby grant permission to use, copy, modify,
* distribute, and license this software and its documentation for any
* purpose, provided that existing copyright notices are retained in
* all copies and that this notice is included verbatim in any
* distributions. No written agreement, license, or royalty fee is
* required for any of the authorized uses. Modifications to this
* software may be copyrighted by their authors and need not follow
* the licensing terms described here, provided that the new terms are
* clearly indicated on the first page of each file where they apply.
*
* IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY
* PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
* DAMAGES ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION,
* OR ANY DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
* THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND
* NON-INFRINGEMENT. THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS,
* AND THE AUTHORS AND DISTRIBUTORS HAVE NO OBLIGATION TO PROVIDE
* MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*
* GOVERNMENT USE: If you are acquiring this software on behalf of the
* U.S. government, the Government shall have only "Restricted Rights"
* in the software and related documentation as defined in the Federal
* Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2). If you
* are acquiring the software on behalf of the Department of Defense,
* the software shall be classified as "Commercial Computer Software"
* and the Government shall have only "Restricted Rights" as defined
* in Clause 252.227-7013 (c) (1) of DFARs. Notwithstanding the
* foregoing, the authors grant the U.S. Government and others acting
* in its behalf permission to use and distribute the software in
* accordance with the terms specified in this license.
*
*/
#include "gtkmain.h"
#include "gtktexttag.h"
#include "gtktexttypes.h"
#include "gtktexttagtable.h"
#include "gtksignal.h"
#include "gtkmain.h"
#include <stdlib.h>
#include <string.h>
enum {
EVENT,
LAST_SIGNAL
};
enum {
ARG_0,
/* Construct args */
ARG_NAME,
/* Style args */
ARG_BACKGROUND,
ARG_FOREGROUND,
ARG_BACKGROUND_GDK,
ARG_FOREGROUND_GDK,
ARG_BACKGROUND_STIPPLE,
ARG_FOREGROUND_STIPPLE,
ARG_FONT,
ARG_FONT_DESC,
ARG_PIXELS_ABOVE_LINES,
ARG_PIXELS_BELOW_LINES,
ARG_PIXELS_INSIDE_WRAP,
ARG_EDITABLE,
ARG_WRAP_MODE,
ARG_JUSTIFY,
ARG_DIRECTION,
ARG_LEFT_MARGIN,
ARG_INDENT,
ARG_STRIKETHROUGH,
ARG_RIGHT_MARGIN,
ARG_UNDERLINE,
ARG_OFFSET,
ARG_BG_FULL_HEIGHT,
ARG_LANGUAGE,
ARG_TABS,
ARG_INVISIBLE,
/* Whether-a-style-arg-is-set args */
ARG_BACKGROUND_SET,
ARG_FOREGROUND_SET,
ARG_BACKGROUND_GDK_SET,
ARG_FOREGROUND_GDK_SET,
ARG_BACKGROUND_STIPPLE_SET,
ARG_FOREGROUND_STIPPLE_SET,
ARG_FONT_SET,
ARG_PIXELS_ABOVE_LINES_SET,
ARG_PIXELS_BELOW_LINES_SET,
ARG_PIXELS_INSIDE_WRAP_SET,
ARG_EDITABLE_SET,
ARG_WRAP_MODE_SET,
ARG_JUSTIFY_SET,
ARG_LEFT_MARGIN_SET,
ARG_INDENT_SET,
ARG_STRIKETHROUGH_SET,
ARG_RIGHT_MARGIN_SET,
ARG_UNDERLINE_SET,
ARG_OFFSET_SET,
ARG_BG_FULL_HEIGHT_SET,
ARG_LANGUAGE_SET,
ARG_TABS_SET,
ARG_INVISIBLE_SET,
LAST_ARG
};
static void gtk_text_tag_init (GtkTextTag *text_tag);
static void gtk_text_tag_class_init (GtkTextTagClass *klass);
static void gtk_text_tag_destroy (GtkObject *object);
static void gtk_text_tag_finalize (GObject *object);
static void gtk_text_tag_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_text_tag_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static GtkObjectClass *parent_class = NULL;
static guint signals[LAST_SIGNAL] = { 0 };
GtkType
gtk_text_tag_get_type (void)
{
static GtkType our_type = 0;
if (our_type == 0)
{
static const GtkTypeInfo our_info =
{
"GtkTextTag",
sizeof (GtkTextTag),
sizeof (GtkTextTagClass),
(GtkClassInitFunc) gtk_text_tag_class_init,
(GtkObjectInitFunc) gtk_text_tag_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL
};
our_type = gtk_type_unique (GTK_TYPE_OBJECT, &our_info);
}
return our_type;
}
static void
gtk_text_tag_class_init (GtkTextTagClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GtkObjectClass *object_class = GTK_OBJECT_CLASS (klass);
parent_class = gtk_type_class (GTK_TYPE_OBJECT);
/* Construct */
gtk_object_add_arg_type ("GtkTextTag::name", GTK_TYPE_STRING,
GTK_ARG_READWRITE | GTK_ARG_CONSTRUCT_ONLY,
ARG_NAME);
/* Style args */
gtk_object_add_arg_type ("GtkTextTag::background", GTK_TYPE_STRING,
GTK_ARG_WRITABLE, ARG_BACKGROUND);
gtk_object_add_arg_type ("GtkTextTag::background_gdk", GTK_TYPE_GDK_COLOR,
GTK_ARG_READWRITE, ARG_BACKGROUND_GDK);
gtk_object_add_arg_type ("GtkTextTag::background_full_height", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_BG_FULL_HEIGHT);
gtk_object_add_arg_type ("GtkTextTag::background_stipple",
GDK_TYPE_PIXMAP,
GTK_ARG_READWRITE, ARG_BACKGROUND_STIPPLE);
gtk_object_add_arg_type ("GtkTextTag::direction", GTK_TYPE_ENUM,
GTK_ARG_READWRITE, ARG_DIRECTION);
gtk_object_add_arg_type ("GtkTextTag::editable", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_EDITABLE);
gtk_object_add_arg_type ("GtkTextTag::font", GTK_TYPE_STRING,
GTK_ARG_READWRITE, ARG_FONT);
gtk_object_add_arg_type ("GtkTextTag::font_desc", GTK_TYPE_BOXED,
GTK_ARG_READWRITE, ARG_FONT_DESC);
gtk_object_add_arg_type ("GtkTextTag::foreground", GTK_TYPE_STRING,
GTK_ARG_WRITABLE, ARG_FOREGROUND);
gtk_object_add_arg_type ("GtkTextTag::foreground_gdk", GTK_TYPE_GDK_COLOR,
GTK_ARG_READWRITE, ARG_FOREGROUND_GDK);
gtk_object_add_arg_type ("GtkTextTag::foreground_stipple",
GDK_TYPE_PIXMAP,
GTK_ARG_READWRITE, ARG_FOREGROUND_STIPPLE);
gtk_object_add_arg_type ("GtkTextTag::justify", GTK_TYPE_ENUM,
GTK_ARG_READWRITE, ARG_JUSTIFY);
gtk_object_add_arg_type ("GtkTextTag::language", GTK_TYPE_STRING,
GTK_ARG_READWRITE, ARG_LANGUAGE);
gtk_object_add_arg_type ("GtkTextTag::left_margin", GTK_TYPE_INT,
GTK_ARG_READWRITE, ARG_LEFT_MARGIN);
gtk_object_add_arg_type ("GtkTextTag::indent", GTK_TYPE_INT,
GTK_ARG_READWRITE, ARG_INDENT);
gtk_object_add_arg_type ("GtkTextTag::offset", GTK_TYPE_INT,
GTK_ARG_READWRITE, ARG_OFFSET);
gtk_object_add_arg_type ("GtkTextTag::pixels_above_lines", GTK_TYPE_INT,
GTK_ARG_READWRITE, ARG_PIXELS_ABOVE_LINES);
gtk_object_add_arg_type ("GtkTextTag::pixels_below_lines", GTK_TYPE_INT,
GTK_ARG_READWRITE, ARG_PIXELS_BELOW_LINES);
gtk_object_add_arg_type ("GtkTextTag::pixels_inside_wrap", GTK_TYPE_INT,
GTK_ARG_READWRITE, ARG_PIXELS_INSIDE_WRAP);
gtk_object_add_arg_type ("GtkTextTag::right_margin", GTK_TYPE_INT,
GTK_ARG_READWRITE, ARG_RIGHT_MARGIN);
gtk_object_add_arg_type ("GtkTextTag::strikethrough", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_STRIKETHROUGH);
gtk_object_add_arg_type ("GtkTextTag::underline", GTK_TYPE_ENUM,
GTK_ARG_READWRITE, ARG_UNDERLINE);
gtk_object_add_arg_type ("GtkTextTag::wrap_mode", GTK_TYPE_ENUM,
GTK_ARG_READWRITE, ARG_WRAP_MODE);
gtk_object_add_arg_type ("GtkTextTag::tabs", GTK_TYPE_POINTER, /* FIXME */
GTK_ARG_READWRITE, ARG_TABS);
gtk_object_add_arg_type ("GtkTextTag::invisible", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_INVISIBLE);
/* Style args are set or not */
gtk_object_add_arg_type ("GtkTextTag::background_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_BACKGROUND_SET);
gtk_object_add_arg_type ("GtkTextTag::background_full_height_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_BG_FULL_HEIGHT_SET);
gtk_object_add_arg_type ("GtkTextTag::background_gdk_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_BACKGROUND_GDK_SET);
gtk_object_add_arg_type ("GtkTextTag::background_stipple_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_BACKGROUND_STIPPLE_SET);
gtk_object_add_arg_type ("GtkTextTag::editable_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_EDITABLE_SET);
gtk_object_add_arg_type ("GtkTextTag::font_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_FONT_SET);
gtk_object_add_arg_type ("GtkTextTag::foreground_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_FOREGROUND_SET);
gtk_object_add_arg_type ("GtkTextTag::foreground_gdk_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_FOREGROUND_GDK_SET);
gtk_object_add_arg_type ("GtkTextTag::foreground_stipple_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_FOREGROUND_STIPPLE_SET);
gtk_object_add_arg_type ("GtkTextTag::justify_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_JUSTIFY_SET);
gtk_object_add_arg_type ("GtkTextTag::language_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_LANGUAGE_SET);
gtk_object_add_arg_type ("GtkTextTag::left_margin_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_LEFT_MARGIN_SET);
gtk_object_add_arg_type ("GtkTextTag::indent_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_INDENT_SET);
gtk_object_add_arg_type ("GtkTextTag::offset_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_OFFSET_SET);
gtk_object_add_arg_type ("GtkTextTag::pixels_above_lines_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_PIXELS_ABOVE_LINES_SET);
gtk_object_add_arg_type ("GtkTextTag::pixels_below_lines_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_PIXELS_BELOW_LINES_SET);
gtk_object_add_arg_type ("GtkTextTag::pixels_inside_wrap_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_PIXELS_INSIDE_WRAP_SET);
gtk_object_add_arg_type ("GtkTextTag::strikethrough_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_STRIKETHROUGH_SET);
gtk_object_add_arg_type ("GtkTextTag::right_margin_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_RIGHT_MARGIN_SET);
gtk_object_add_arg_type ("GtkTextTag::underline_set", GTK_TYPE_ENUM,
GTK_ARG_READWRITE, ARG_UNDERLINE_SET);
gtk_object_add_arg_type ("GtkTextTag::wrap_mode_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_WRAP_MODE_SET);
gtk_object_add_arg_type ("GtkTextTag::tabs_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_TABS_SET);
gtk_object_add_arg_type ("GtkTextTag::invisible_set", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_INVISIBLE_SET);
signals[EVENT] =
gtk_signal_new ("event",
GTK_RUN_LAST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkTextTagClass, event),
gtk_marshal_INT__OBJECT_BOXED_BOXED,
GTK_TYPE_INT,
3,
G_TYPE_OBJECT,
GTK_TYPE_GDK_EVENT,
GTK_TYPE_TEXT_ITER);
gtk_object_class_add_signals (object_class, signals, LAST_SIGNAL);
object_class->set_arg = gtk_text_tag_set_arg;
object_class->get_arg = gtk_text_tag_get_arg;
object_class->destroy = gtk_text_tag_destroy;
gobject_class->finalize = gtk_text_tag_finalize;
}
void
gtk_text_tag_init (GtkTextTag *text_tag)
{
/* 0 is basically a fine way to initialize everything in the
entire struct */
}
/**
* gtk_text_tag_new:
* @name: tag name, or %NULL
*
* Creates a #GtkTextTag. Configure the tag using object arguments,
* i.e. using g_object_set().
*
* Return value: a new #GtkTextTag
**/
GtkTextTag*
gtk_text_tag_new (const gchar *name)
{
GtkTextTag *tag;
tag = GTK_TEXT_TAG (gtk_type_new (gtk_text_tag_get_type ()));
tag->name = g_strdup (name);
tag->values = gtk_text_attributes_new ();
return tag;
}
static void
gtk_text_tag_destroy (GtkObject *object)
{
GtkTextTag *text_tag;
text_tag = GTK_TEXT_TAG (object);
g_assert (!text_tag->values->realized);
if (text_tag->table)
gtk_text_tag_table_remove (text_tag->table, text_tag);
g_assert (text_tag->table == NULL);
gtk_text_attributes_unref (text_tag->values);
text_tag->values = NULL;
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
static void
gtk_text_tag_finalize (GObject *object)
{
GtkTextTag *text_tag;
text_tag = GTK_TEXT_TAG (object);
g_free (text_tag->name);
text_tag->name = NULL;
(* G_OBJECT_CLASS (parent_class)->finalize) (object);
}
static void
set_bg_color (GtkTextTag *tag, GdkColor *color)
{
if (color)
{
tag->bg_color_set = TRUE;
tag->values->appearance.bg_color = *color;
}
else
{
tag->bg_color_set = FALSE;
}
}
static void
set_fg_color (GtkTextTag *tag, GdkColor *color)
{
if (color)
{
tag->fg_color_set = TRUE;
tag->values->appearance.fg_color = *color;
}
else
{
tag->fg_color_set = FALSE;
}
}
static void
gtk_text_tag_set_arg (GtkObject *object, GtkArg *arg, guint arg_id)
{
GtkTextTag *text_tag;
gboolean size_changed = FALSE;
text_tag = GTK_TEXT_TAG (object);
g_return_if_fail (!text_tag->values->realized);
switch (arg_id)
{
case ARG_NAME:
g_return_if_fail (text_tag->name == NULL);
text_tag->name = g_strdup (GTK_VALUE_STRING (*arg));
break;
case ARG_BACKGROUND:
{
GdkColor color;
if (gdk_color_parse (GTK_VALUE_STRING (*arg), &color))
set_bg_color (text_tag, &color);
else
g_warning ("Don't know color `%s'", GTK_VALUE_STRING (*arg));
}
break;
case ARG_FOREGROUND:
{
GdkColor color;
if (gdk_color_parse (GTK_VALUE_STRING (*arg), &color))
set_fg_color (text_tag, &color);
else
g_warning ("Don't know color `%s'", GTK_VALUE_STRING (*arg));
}
break;
case ARG_BACKGROUND_GDK:
{
GdkColor *color = GTK_VALUE_POINTER (*arg);
set_bg_color (text_tag, color);
}
break;
case ARG_FOREGROUND_GDK:
{
GdkColor *color = GTK_VALUE_POINTER (*arg);
set_fg_color (text_tag, color);
}
break;
case ARG_BACKGROUND_STIPPLE:
{
GdkBitmap *bitmap = GTK_VALUE_POINTER (*arg);
text_tag->bg_stipple_set = TRUE;
if (text_tag->values->appearance.bg_stipple != bitmap)
{
if (bitmap != NULL)
gdk_bitmap_ref (bitmap);
if (text_tag->values->appearance.bg_stipple)
gdk_bitmap_unref (text_tag->values->appearance.bg_stipple);
text_tag->values->appearance.bg_stipple = bitmap;
}
}
break;
case ARG_FOREGROUND_STIPPLE:
{
GdkBitmap *bitmap = GTK_VALUE_POINTER (*arg);
text_tag->fg_stipple_set = TRUE;
if (text_tag->values->appearance.fg_stipple != bitmap)
{
if (bitmap != NULL)
gdk_bitmap_ref (bitmap);
if (text_tag->values->appearance.fg_stipple)
gdk_bitmap_unref (text_tag->values->appearance.fg_stipple);
text_tag->values->appearance.fg_stipple = bitmap;
}
}
break;
case ARG_FONT:
{
PangoFontDescription *font_desc = NULL;
const gchar *name;
name = GTK_VALUE_STRING (*arg);
if (name)
font_desc = pango_font_description_from_string (name);
if (text_tag->values->font_desc)
pango_font_description_free (text_tag->values->font_desc);
text_tag->font_set = (font_desc != NULL);
text_tag->values->font_desc = font_desc;
size_changed = TRUE;
}
break;
case ARG_FONT_DESC:
{
PangoFontDescription *font_desc;
font_desc = GTK_VALUE_BOXED (*arg);
if (text_tag->values->font_desc)
pango_font_description_free (text_tag->values->font_desc);
if (font_desc)
text_tag->values->font_desc = pango_font_description_copy (font_desc);
else
text_tag->values->font_desc = NULL;
text_tag->font_set = (font_desc != NULL);
size_changed = TRUE;
}
break;
case ARG_PIXELS_ABOVE_LINES:
text_tag->pixels_above_lines_set = TRUE;
text_tag->values->pixels_above_lines = GTK_VALUE_INT (*arg);
size_changed = TRUE;
break;
case ARG_PIXELS_BELOW_LINES:
text_tag->pixels_below_lines_set = TRUE;
text_tag->values->pixels_below_lines = GTK_VALUE_INT (*arg);
size_changed = TRUE;
break;
case ARG_PIXELS_INSIDE_WRAP:
text_tag->pixels_inside_wrap_set = TRUE;
text_tag->values->pixels_inside_wrap = GTK_VALUE_INT (*arg);
size_changed = TRUE;
break;
case ARG_EDITABLE:
text_tag->editable_set = TRUE;
text_tag->values->editable = GTK_VALUE_BOOL (*arg);
break;
case ARG_WRAP_MODE:
text_tag->wrap_mode_set = TRUE;
text_tag->values->wrap_mode = GTK_VALUE_ENUM (*arg);
size_changed = TRUE;
break;
case ARG_JUSTIFY:
text_tag->justify_set = TRUE;
text_tag->values->justify = GTK_VALUE_ENUM (*arg);
size_changed = TRUE;
break;
case ARG_DIRECTION:
text_tag->values->direction = GTK_VALUE_ENUM (*arg);
break;
case ARG_LEFT_MARGIN:
text_tag->left_margin_set = TRUE;
text_tag->values->left_margin = GTK_VALUE_INT (*arg);
size_changed = TRUE;
break;
case ARG_INDENT:
text_tag->indent_set = TRUE;
text_tag->values->indent = GTK_VALUE_INT (*arg);
size_changed = TRUE;
break;
case ARG_STRIKETHROUGH:
text_tag->strikethrough_set = TRUE;
text_tag->values->appearance.strikethrough = GTK_VALUE_BOOL (*arg);
break;
case ARG_RIGHT_MARGIN:
text_tag->right_margin_set = TRUE;
text_tag->values->right_margin = GTK_VALUE_INT (*arg);
size_changed = TRUE;
break;
case ARG_UNDERLINE:
text_tag->underline_set = TRUE;
text_tag->values->appearance.underline = GTK_VALUE_ENUM (*arg);
break;
case ARG_OFFSET:
text_tag->offset_set = TRUE;
text_tag->values->offset = GTK_VALUE_INT (*arg);
size_changed = TRUE;
break;
case ARG_BG_FULL_HEIGHT:
text_tag->bg_full_height_set = TRUE;
text_tag->values->bg_full_height = GTK_VALUE_BOOL (*arg);
break;
case ARG_LANGUAGE:
text_tag->language_set = TRUE;
text_tag->values->language = g_strdup (GTK_VALUE_STRING (*arg));
break;
case ARG_TABS:
text_tag->tabs_set = TRUE;
if (text_tag->values->tabs)
pango_tab_array_free (text_tag->values->tabs);
text_tag->values->tabs =
pango_tab_array_copy (GTK_VALUE_POINTER (*arg));
size_changed = TRUE;
break;
case ARG_INVISIBLE:
text_tag->invisible_set = TRUE;
text_tag->values->invisible = GTK_VALUE_BOOL (*arg);
size_changed = TRUE;
break;
/* Whether the value should be used... */
case ARG_BACKGROUND_SET:
case ARG_BACKGROUND_GDK_SET:
text_tag->bg_color_set = GTK_VALUE_BOOL (*arg);
break;
case ARG_FOREGROUND_SET:
case ARG_FOREGROUND_GDK_SET:
text_tag->fg_color_set = GTK_VALUE_BOOL (*arg);
break;
case ARG_BACKGROUND_STIPPLE_SET:
text_tag->bg_stipple_set = GTK_VALUE_BOOL (*arg);
break;
case ARG_FOREGROUND_STIPPLE_SET:
text_tag->fg_stipple_set = GTK_VALUE_BOOL (*arg);
break;
case ARG_FONT_SET:
text_tag->font_set = GTK_VALUE_BOOL (*arg);
size_changed = TRUE;
break;
case ARG_PIXELS_ABOVE_LINES_SET:
text_tag->pixels_above_lines_set = GTK_VALUE_BOOL (*arg);
size_changed = TRUE;
break;
case ARG_PIXELS_BELOW_LINES_SET:
text_tag->pixels_below_lines_set = GTK_VALUE_BOOL (*arg);
size_changed = TRUE;
break;
case ARG_PIXELS_INSIDE_WRAP_SET:
text_tag->pixels_inside_wrap_set = GTK_VALUE_BOOL (*arg);
size_changed = TRUE;
break;
case ARG_EDITABLE_SET:
text_tag->editable_set = GTK_VALUE_BOOL (*arg);
break;
case ARG_WRAP_MODE_SET:
text_tag->wrap_mode_set = GTK_VALUE_BOOL (*arg);
size_changed = TRUE;
break;
case ARG_JUSTIFY_SET:
text_tag->justify_set = GTK_VALUE_BOOL (*arg);
size_changed = TRUE;
break;
case ARG_LEFT_MARGIN_SET:
text_tag->left_margin_set = GTK_VALUE_BOOL (*arg);
size_changed = TRUE;
break;
case ARG_INDENT_SET:
text_tag->indent_set = GTK_VALUE_BOOL (*arg);
size_changed = TRUE;
break;
case ARG_STRIKETHROUGH_SET:
text_tag->strikethrough_set = GTK_VALUE_BOOL (*arg);
break;
case ARG_RIGHT_MARGIN_SET:
text_tag->right_margin_set = GTK_VALUE_BOOL (*arg);
size_changed = TRUE;
break;
case ARG_UNDERLINE_SET:
text_tag->underline_set = GTK_VALUE_BOOL (*arg);
break;
case ARG_OFFSET_SET:
text_tag->offset_set = GTK_VALUE_BOOL (*arg);
size_changed = TRUE;
break;
case ARG_BG_FULL_HEIGHT_SET:
text_tag->bg_full_height_set = GTK_VALUE_BOOL (*arg);
break;
case ARG_LANGUAGE_SET:
text_tag->language_set = GTK_VALUE_BOOL (*arg);
size_changed = TRUE;
break;
case ARG_TABS_SET:
text_tag->tabs_set = GTK_VALUE_BOOL (*arg);
size_changed = TRUE;
break;
case ARG_INVISIBLE_SET:
text_tag->invisible_set = GTK_VALUE_BOOL (*arg);
size_changed = TRUE;
break;
default:
g_assert_not_reached ();
break;
}
/* FIXME I would like to do this after all set_arg in a single
gtk_object_set () have been called. But an idle function
won't work; we need to emit when the tag is changed, not
when we get around to the event loop. So blah, we eat some
inefficiency. */
/* This is also somewhat weird since we emit another object's
signal here, but the two objects are already tightly bound. */
if (text_tag->table)
gtk_signal_emit_by_name (GTK_OBJECT (text_tag->table),
"tag_changed",
text_tag, size_changed);
}
static void
get_color_arg (GtkArg *arg, GdkColor *orig)
{
GdkColor *color;
color = g_new (GdkColor, 1);
*color = *orig;
GTK_VALUE_BOXED (*arg) = color;
}
static void
gtk_text_tag_get_arg (GtkObject *object, GtkArg *arg, guint arg_id)
{
GtkTextTag *tag;
tag = GTK_TEXT_TAG (object);
switch (arg_id)
{
case ARG_NAME:
GTK_VALUE_STRING (*arg) = g_strdup (tag->name);
break;
case ARG_BACKGROUND_GDK:
get_color_arg (arg, &tag->values->appearance.bg_color);
break;
case ARG_FOREGROUND_GDK:
get_color_arg (arg, &tag->values->appearance.fg_color);
break;
case ARG_BACKGROUND_STIPPLE:
GTK_VALUE_BOXED (*arg) = tag->values->appearance.bg_stipple;
break;
case ARG_FOREGROUND_STIPPLE:
GTK_VALUE_BOXED (*arg) = tag->values->appearance.fg_stipple;
break;
case ARG_FONT:
if (tag->values->font_desc)
GTK_VALUE_STRING (*arg) = pango_font_description_to_string (tag->values->font_desc);
else
GTK_VALUE_STRING (*arg) = NULL;
break;
case ARG_FONT_DESC:
if (tag->values->font_desc)
GTK_VALUE_BOXED (*arg) = pango_font_description_copy (tag->values->font_desc);
else
GTK_VALUE_BOXED (*arg) = NULL;
break;
case ARG_PIXELS_ABOVE_LINES:
GTK_VALUE_INT (*arg) = tag->values->pixels_above_lines;
break;
case ARG_PIXELS_BELOW_LINES:
GTK_VALUE_INT (*arg) = tag->values->pixels_below_lines;
break;
case ARG_PIXELS_INSIDE_WRAP:
GTK_VALUE_INT (*arg) = tag->values->pixels_inside_wrap;
break;
case ARG_EDITABLE:
GTK_VALUE_BOOL (*arg) = tag->values->editable;
break;
case ARG_WRAP_MODE:
GTK_VALUE_ENUM (*arg) = tag->values->wrap_mode;
break;
case ARG_JUSTIFY:
GTK_VALUE_ENUM (*arg) = tag->values->justify;
break;
case ARG_LEFT_MARGIN:
GTK_VALUE_INT (*arg) = tag->values->left_margin;
break;
case ARG_INDENT:
GTK_VALUE_INT (*arg) = tag->values->indent;
break;
case ARG_STRIKETHROUGH:
GTK_VALUE_BOOL (*arg) = tag->values->appearance.strikethrough;
break;
case ARG_RIGHT_MARGIN:
GTK_VALUE_INT (*arg) = tag->values->right_margin;
break;
case ARG_UNDERLINE:
GTK_VALUE_ENUM (*arg) = tag->values->appearance.underline;
break;
case ARG_OFFSET:
GTK_VALUE_INT (*arg) = tag->values->offset;
break;
case ARG_BG_FULL_HEIGHT:
GTK_VALUE_BOOL (*arg) = tag->values->bg_full_height;
break;
case ARG_LANGUAGE:
GTK_VALUE_STRING (*arg) = g_strdup (tag->values->language);
break;
case ARG_TABS:
GTK_VALUE_POINTER (*arg) = tag->values->tabs ?
pango_tab_array_copy (tag->values->tabs) : NULL;
break;
case ARG_BACKGROUND_SET:
case ARG_BACKGROUND_GDK_SET:
GTK_VALUE_BOOL (*arg) = tag->bg_color_set;
break;
case ARG_FOREGROUND_SET:
case ARG_FOREGROUND_GDK_SET:
GTK_VALUE_BOOL (*arg) = tag->fg_color_set;
break;
case ARG_BACKGROUND_STIPPLE_SET:
GTK_VALUE_BOOL (*arg) = tag->bg_stipple_set;
break;
case ARG_FOREGROUND_STIPPLE_SET:
GTK_VALUE_BOOL (*arg) = tag->fg_stipple_set;
break;
case ARG_FONT_SET:
GTK_VALUE_BOOL (*arg) = tag->font_set;
break;
case ARG_PIXELS_ABOVE_LINES_SET:
GTK_VALUE_BOOL (*arg) = tag->pixels_above_lines_set;
break;
case ARG_PIXELS_BELOW_LINES_SET:
GTK_VALUE_BOOL (*arg) = tag->pixels_below_lines_set;
break;
case ARG_PIXELS_INSIDE_WRAP_SET:
GTK_VALUE_BOOL (*arg) = tag->pixels_inside_wrap_set;
break;
case ARG_EDITABLE_SET:
GTK_VALUE_BOOL (*arg) = tag->editable_set;
break;
case ARG_WRAP_MODE_SET:
GTK_VALUE_BOOL (*arg) = tag->wrap_mode_set;
break;
case ARG_JUSTIFY_SET:
GTK_VALUE_BOOL (*arg) = tag->justify_set;
break;
case ARG_LEFT_MARGIN_SET:
GTK_VALUE_BOOL (*arg) = tag->left_margin_set;
break;
case ARG_INDENT_SET:
GTK_VALUE_BOOL (*arg) = tag->indent_set;
break;
case ARG_STRIKETHROUGH_SET:
GTK_VALUE_BOOL (*arg) = tag->strikethrough_set;
break;
case ARG_RIGHT_MARGIN_SET:
GTK_VALUE_BOOL (*arg) = tag->right_margin_set;
break;
case ARG_UNDERLINE_SET:
GTK_VALUE_BOOL (*arg) = tag->underline_set;
break;
case ARG_OFFSET_SET:
GTK_VALUE_BOOL (*arg) = tag->offset_set;
break;
case ARG_BG_FULL_HEIGHT_SET:
GTK_VALUE_BOOL (*arg) = tag->bg_full_height_set;
break;
case ARG_LANGUAGE_SET:
GTK_VALUE_BOOL (*arg) = tag->language_set;
break;
case ARG_TABS_SET:
GTK_VALUE_BOOL (*arg) = tag->tabs_set;
break;
case ARG_BACKGROUND:
case ARG_FOREGROUND:
default:
arg->type = GTK_TYPE_INVALID;
break;
}
/* FIXME */
arg->type = GTK_TYPE_INVALID;
}
/*
* Tag operations
*/
typedef struct {
gint high;
gint low;
gint delta;
} DeltaData;
static void
delta_priority_foreach (GtkTextTag *tag, gpointer user_data)
{
DeltaData *dd = user_data;
if (tag->priority >= dd->low && tag->priority <= dd->high)
tag->priority += dd->delta;
}
/**
* gtk_text_tag_get_priority:
* @tag: a #GtkTextTag
*
* Get the tag priority.
*
* Return value: The tag's priority.
**/
gint
gtk_text_tag_get_priority (GtkTextTag *tag)
{
g_return_val_if_fail (GTK_IS_TEXT_TAG (tag), 0);
return tag->priority;
}
/**
* gtk_text_tag_set_priority:
* @tag: a #GtkTextTag
* @priority: the new priority
*
* Sets the priority of a #GtkTextTag. Valid priorities are
* start at 0 and go to one less than gtk_text_tag_table_size().
* Each tag in a table has a unique priority; setting the priority
* of one tag shifts the priorities of all the other tags in the
* table to maintain a unique priority for each tag. Higher priority
* tags "win" if two tags both set the same text attribute. When adding
* a tag to a tag table, it will be assigned the highest priority in
* the table by default; so normally the precedence of a set of tags
* is the order in which they were added to the table, or created with
* gtk_text_buffer_create_tag(), which adds the tag to the buffer's table
* automatically.
**/
void
gtk_text_tag_set_priority (GtkTextTag *tag,
gint priority)
{
DeltaData dd;
g_return_if_fail (GTK_IS_TEXT_TAG (tag));
g_return_if_fail (tag->table != NULL);
g_return_if_fail (priority >= 0);
g_return_if_fail (priority < gtk_text_tag_table_size (tag->table));
if (priority == tag->priority)
return;
if (priority < tag->priority)
{
dd.low = priority;
dd.high = tag->priority - 1;
dd.delta = 1;
}
else
{
dd.low = tag->priority + 1;
dd.high = priority;
dd.delta = -1;
}
gtk_text_tag_table_foreach (tag->table,
delta_priority_foreach,
&dd);
tag->priority = priority;
}
/**
* gtk_text_tag_event:
* @tag: a #GtkTextTag
* @event_object: object that received the event, such as a widget
* @event: the event
* @iter: location where the event was received
*
* Emits the "event" signal on the #GtkTextTag.
*
* Return value: result of signal emission (whether the event was handled)
**/
gint
gtk_text_tag_event (GtkTextTag *tag,
GObject *event_object,
GdkEvent *event,
const GtkTextIter *iter)
{
gint retval = FALSE;
g_return_val_if_fail (GTK_IS_TEXT_TAG (tag), FALSE);
g_return_val_if_fail (GTK_IS_OBJECT (event_object), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
gtk_signal_emit (GTK_OBJECT (tag),
signals[EVENT],
event_object,
event,
iter,
&retval);
return retval;
}
static int
tag_sort_func (gconstpointer first, gconstpointer second)
{
GtkTextTag *tag1, *tag2;
tag1 = * (GtkTextTag **) first;
tag2 = * (GtkTextTag **) second;
return tag1->priority - tag2->priority;
}
void
gtk_text_tag_array_sort (GtkTextTag** tag_array_p,
guint len)
{
int i, j, prio;
GtkTextTag **tag;
GtkTextTag **maxPtrPtr, *tmp;
g_return_if_fail (tag_array_p != NULL);
g_return_if_fail (len > 0);
if (len < 2) {
return;
}
if (len < 20) {
GtkTextTag **iter = tag_array_p;
for (i = len-1; i > 0; i--, iter++) {
maxPtrPtr = tag = iter;
prio = tag[0]->priority;
for (j = i, tag++; j > 0; j--, tag++) {
if (tag[0]->priority < prio) {
prio = tag[0]->priority;
maxPtrPtr = tag;
}
}
tmp = *maxPtrPtr;
*maxPtrPtr = *iter;
*iter = tmp;
}
} else {
qsort ((void *) tag_array_p, (unsigned) len, sizeof (GtkTextTag *),
tag_sort_func);
}
#if 0
{
printf ("Sorted tag array: \n");
i = 0;
while (i < len)
{
GtkTextTag *t = tag_array_p[i];
printf (" %s priority %d\n", t->name, t->priority);
++i;
}
}
#endif
}
/*
* Attributes
*/
/**
* gtk_text_attributes_new:
*
* Creates a #GtkTextAttributes, which describes
* a set of properties on some text.
*
* Return value: a new #GtkTextAttributes
**/
GtkTextAttributes*
gtk_text_attributes_new (void)
{
GtkTextAttributes *values;
values = g_new0(GtkTextAttributes, 1);
/* 0 is a valid value for most of the struct */
values->refcount = 1;
values->language = gtk_get_default_language ();
return values;
}
/* FIXME change the signature of this to be correct */
void
gtk_text_attributes_copy (GtkTextAttributes *src,
GtkTextAttributes *dest)
{
guint orig_refcount;
g_return_if_fail (!dest->realized);
if (src == dest)
return;
/* Add refs */
if (src->appearance.bg_stipple)
gdk_bitmap_ref (src->appearance.bg_stipple);
if (src->appearance.fg_stipple)
gdk_bitmap_ref (src->appearance.fg_stipple);
/* Remove refs */
if (dest->appearance.bg_stipple)
gdk_bitmap_unref (dest->appearance.bg_stipple);
if (dest->appearance.fg_stipple)
gdk_bitmap_unref (dest->appearance.fg_stipple);
if (dest->language)
g_free (dest->language);
/* Copy */
orig_refcount = dest->refcount;
*dest = *src;
dest->font_desc = pango_font_description_copy (src->font_desc);
if (src->tabs)
dest->tabs = pango_tab_array_copy (src->tabs);
dest->language = g_strdup (src->language);
dest->refcount = orig_refcount;
dest->realized = FALSE;
}
void
gtk_text_attributes_ref (GtkTextAttributes *values)
{
g_return_if_fail (values != NULL);
values->refcount += 1;
}
void
gtk_text_attributes_unref (GtkTextAttributes *values)
{
g_return_if_fail (values != NULL);
g_return_if_fail (values->refcount > 0);
values->refcount -= 1;
if (values->refcount == 0)
{
g_assert (!values->realized);
if (values->appearance.bg_stipple)
gdk_bitmap_unref (values->appearance.bg_stipple);
if (values->font_desc)
pango_font_description_free (values->font_desc);
if (values->appearance.fg_stipple)
gdk_bitmap_unref (values->appearance.fg_stipple);
if (values->tabs)
pango_tab_array_free (values->tabs);
if (values->language)
g_free (values->language);
g_free (values);
}
}
void
gtk_text_attributes_realize (GtkTextAttributes *values,
GdkColormap *cmap,
GdkVisual *visual)
{
g_return_if_fail (values != NULL);
g_return_if_fail (values->refcount > 0);
g_return_if_fail (!values->realized);
/* It is wrong to use this colormap, FIXME */
gdk_colormap_alloc_color (cmap,
&values->appearance.fg_color,
FALSE, TRUE);
gdk_colormap_alloc_color (cmap,
&values->appearance.bg_color,
FALSE, TRUE);
values->realized = TRUE;
}
void
gtk_text_attributes_unrealize (GtkTextAttributes *values,
GdkColormap *cmap,
GdkVisual *visual)
{
g_return_if_fail (values != NULL);
g_return_if_fail (values->refcount > 0);
g_return_if_fail (values->realized);
gdk_colormap_free_colors (cmap,
&values->appearance.fg_color, 1);
gdk_colormap_free_colors (cmap,
&values->appearance.bg_color, 1);
values->appearance.fg_color.pixel = 0;
values->appearance.bg_color.pixel = 0;
values->realized = FALSE;
}
void
gtk_text_attributes_fill_from_tags (GtkTextAttributes *dest,
GtkTextTag** tags,
guint n_tags)
{
guint n = 0;
g_return_if_fail (!dest->realized);
while (n < n_tags)
{
GtkTextTag *tag = tags[n];
GtkTextAttributes *vals = tag->values;
if (n > 0)
g_assert (tags[n]->priority > tags[n-1]->priority);
if (tag->bg_color_set)
{
dest->appearance.bg_color = vals->appearance.bg_color;
dest->appearance.draw_bg = TRUE;
}
if (tag->bg_stipple_set)
{
gdk_bitmap_ref (vals->appearance.bg_stipple);
if (dest->appearance.bg_stipple)
gdk_bitmap_unref (dest->appearance.bg_stipple);
dest->appearance.bg_stipple = vals->appearance.bg_stipple;
dest->appearance.draw_bg = TRUE;
}
if (tag->fg_color_set)
dest->appearance.fg_color = vals->appearance.fg_color;
if (tag->font_set)
{
if (dest->font_desc)
pango_font_description_free (dest->font_desc);
dest->font_desc = pango_font_description_copy (vals->font_desc);
}
if (tag->fg_stipple_set)
{
gdk_bitmap_ref (vals->appearance.fg_stipple);
if (dest->appearance.fg_stipple)
gdk_bitmap_unref (dest->appearance.fg_stipple);
dest->appearance.fg_stipple = vals->appearance.fg_stipple;
}
if (tag->justify_set)
dest->justify = vals->justify;
if (vals->direction != GTK_TEXT_DIR_NONE)
dest->direction = vals->direction;
if (tag->left_margin_set)
dest->left_margin = vals->left_margin;
if (tag->indent_set)
dest->indent = vals->indent;
if (tag->offset_set)
dest->offset = vals->offset;
if (tag->right_margin_set)
dest->right_margin = vals->right_margin;
if (tag->pixels_above_lines_set)
dest->pixels_above_lines = vals->pixels_above_lines;
if (tag->pixels_below_lines_set)
dest->pixels_below_lines = vals->pixels_below_lines;
if (tag->pixels_inside_wrap_set)
dest->pixels_inside_wrap = vals->pixels_inside_wrap;
if (tag->tabs_set)
{
if (dest->tabs)
pango_tab_array_free (dest->tabs);
dest->tabs = pango_tab_array_copy (vals->tabs);
}
if (tag->wrap_mode_set)
dest->wrap_mode = vals->wrap_mode;
if (tag->underline_set)
dest->appearance.underline = vals->appearance.underline;
if (tag->strikethrough_set)
dest->appearance.strikethrough = vals->appearance.strikethrough;
if (tag->invisible_set)
dest->invisible = vals->invisible;
if (tag->editable_set)
dest->editable = vals->editable;
if (tag->bg_full_height_set)
dest->bg_full_height = vals->bg_full_height;
if (tag->language_set)
{
g_free (dest->language);
dest->language = g_strdup (vals->language);
}
++n;
}
}
gboolean
gtk_text_tag_affects_size (GtkTextTag *tag)
{
g_return_val_if_fail (GTK_IS_TEXT_TAG (tag), FALSE);
return
tag->font_set ||
tag->justify_set ||
tag->left_margin_set ||
tag->indent_set ||
tag->offset_set ||
tag->right_margin_set ||
tag->pixels_above_lines_set ||
tag->pixels_below_lines_set ||
tag->pixels_inside_wrap_set ||
tag->tabs_set ||
tag->underline_set ||
tag->wrap_mode_set ||
tag->invisible_set;
}
gboolean
gtk_text_tag_affects_nonsize_appearance (GtkTextTag *tag)
{
g_return_val_if_fail (GTK_IS_TEXT_TAG (tag), FALSE);
return
tag->bg_color_set ||
tag->bg_stipple_set ||
tag->fg_color_set ||
tag->fg_stipple_set ||
tag->strikethrough_set ||
tag->bg_full_height_set;
}
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