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authorChristian Persch <chpe@cvs.gnome.org>2004-08-08 23:33:26 +0800
committerChristian Persch <chpe@src.gnome.org>2004-08-08 23:33:26 +0800
commit10256b2ff6a49d5283ca281ea0068e1acbe7686e (patch)
treed6738bead4c91e36a16a2a0e325749d216711cfe /lib/widgets
parentd368e97a37dbd9ed2163f0a446fa3723ed57c732 (diff)
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R lib/widgets/ephy-ellipsizing-label.c: R
2004-08-08 Christian Persch <chpe@cvs.gnome.org> * lib/ephy-marshal.list: * lib/widgets/Makefile.am: R lib/widgets/ephy-ellipsizing-label.c: R lib/widgets/ephy-ellipsizing-label.h: A lib/widgets/ephy-label.c: A lib/widgets/ephy-label.h: * src/ephy-notebook.c: (sync_label), (build_tab_label): * src/pdm-dialog.c: (show_cookies_properties): * src/prefs-dialog.c: (create_download_path_label), (download_path_response_cb): Kill our ellipsizing label implementation, and import GtkLabel into our prefix. * configure.in: Depend on pango 1.5.1 for ellipsisation support.
Diffstat (limited to 'lib/widgets')
-rw-r--r--lib/widgets/Makefile.am4
-rw-r--r--lib/widgets/ephy-ellipsizing-label.c780
-rw-r--r--lib/widgets/ephy-ellipsizing-label.h74
-rw-r--r--lib/widgets/ephy-label.c3448
-rw-r--r--lib/widgets/ephy-label.h172
5 files changed, 3622 insertions, 856 deletions
diff --git a/lib/widgets/Makefile.am b/lib/widgets/Makefile.am
index d24b82c48..5a5716f28 100644
--- a/lib/widgets/Makefile.am
+++ b/lib/widgets/Makefile.am
@@ -14,8 +14,8 @@ noinst_LTLIBRARIES = libephywidgets.la
libephywidgets_la_SOURCES = \
ephy-arrow-toolbutton.c \
ephy-arrow-toolbutton.h \
- ephy-ellipsizing-label.c \
- ephy-ellipsizing-label.h \
+ ephy-label.c \
+ ephy-label.h \
ephy-cell-renderer-progress.h \
ephy-cell-renderer-progress.c \
ephy-location-entry.c \
diff --git a/lib/widgets/ephy-ellipsizing-label.c b/lib/widgets/ephy-ellipsizing-label.c
deleted file mode 100644
index 151ff744d..000000000
--- a/lib/widgets/ephy-ellipsizing-label.c
+++ /dev/null
@@ -1,780 +0,0 @@
-/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
-
-/* eel-ellipsizing-label.c: Subclass of GtkLabel that ellipsizes the text.
-
- Copyright (C) 2001 Eazel, Inc.
-
- The Gnome Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The Gnome Library 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
- Library General Public License for more priv.
-
- You should have received a copy of the GNU Library General Public
- License along with the Gnome Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
-
- Author: John Sullivan <sullivan@eazel.com>,
- Marco Pesenti Gritti <marco@it.gnome.org> Markup support
-
- $Id$
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "ephy-ellipsizing-label.h"
-
-#include <string.h>
-
-struct EphyEllipsizingLabelPrivate
-{
- char *full_text;
-
- EphyEllipsizeMode mode;
-};
-
-static void ephy_ellipsizing_label_class_init (EphyEllipsizingLabelClass *class);
-static void ephy_ellipsizing_label_init (EphyEllipsizingLabel *label);
-
-static GObjectClass *parent_class = NULL;
-
-static int
-ephy_strcmp (const char *string_a, const char *string_b)
-{
- return strcmp (string_a == NULL ? "" : string_a,
- string_b == NULL ? "" : string_b);
-}
-
-static gboolean
-ephy_str_is_equal (const char *string_a, const char *string_b)
-{
- return ephy_strcmp (string_a, string_b) == 0;
-}
-
-#define ELLIPSIS "..."
-
-/* Caution: this is an _expensive_ function */
-static int
-measure_string_width (const char *string,
- PangoLayout *layout,
- gboolean markup)
-{
- int width;
-
- if (markup)
- {
- pango_layout_set_markup (layout, string, -1);
- }
- else
- {
- pango_layout_set_text (layout, string, -1);
- }
-
- pango_layout_get_pixel_size (layout, &width, NULL);
-
- return width;
-}
-
-/* this is also plenty slow */
-static void
-compute_character_widths (const char *string,
- PangoLayout *layout,
- int *char_len_return,
- int **widths_return,
- int **cuts_return,
- gboolean markup)
-{
- int *widths;
- int *offsets;
- int *cuts;
- int char_len;
- int byte_len;
- const char *p;
- const char *nm_string;
- int i;
- PangoLayoutIter *iter;
- PangoLogAttr *attrs;
-
-#define BEGINS_UTF8_CHAR(x) (((x) & 0xc0) != 0x80)
-
- if (markup)
- {
- pango_layout_set_markup (layout, string, -1);
- }
- else
- {
- pango_layout_set_text (layout, string, -1);
- }
-
- nm_string = pango_layout_get_text (layout);
-
- char_len = g_utf8_strlen (nm_string, -1);
- byte_len = strlen (nm_string);
-
- widths = g_new (int, char_len);
- offsets = g_new (int, byte_len);
-
- /* Create a translation table from byte index to char offset */
- p = nm_string;
- i = 0;
- while (*p) {
- int byte_index = p - nm_string;
-
- if (BEGINS_UTF8_CHAR (*p)) {
- offsets[byte_index] = i;
- ++i;
- } else {
- offsets[byte_index] = G_MAXINT; /* segv if we try to use this */
- }
-
- ++p;
- }
-
- /* Now fill in the widths array */
- iter = pango_layout_get_iter (layout);
-
- do {
- PangoRectangle extents;
- int byte_index;
-
- byte_index = pango_layout_iter_get_index (iter);
-
- if (byte_index < byte_len) {
- pango_layout_iter_get_char_extents (iter, &extents);
-
- g_assert (BEGINS_UTF8_CHAR (nm_string[byte_index]));
- g_assert (offsets[byte_index] < char_len);
-
- widths[offsets[byte_index]] = PANGO_PIXELS (extents.width);
- }
-
- } while (pango_layout_iter_next_char (iter));
-
- pango_layout_iter_free (iter);
-
- g_free (offsets);
-
- *widths_return = widths;
-
- /* Now compute character offsets that are legitimate places to
- * chop the string
- */
- attrs = g_new (PangoLogAttr, char_len + 1);
-
- pango_get_log_attrs (nm_string, byte_len, -1,
- pango_context_get_language (
- pango_layout_get_context (layout)),
- attrs,
- char_len + 1);
-
- cuts = g_new (int, char_len);
- i = 0;
- while (i < char_len) {
- cuts[i] = attrs[i].is_cursor_position;
-
- ++i;
- }
-
- g_free (attrs);
-
- *cuts_return = cuts;
-
- *char_len_return = char_len;
-}
-
-typedef struct
-{
- GString *string;
- int start_offset;
- int end_offset;
- int position;
-} EllipsizeStringData;
-
-static void
-start_element_handler (GMarkupParseContext *context,
- const gchar *element_name,
- const gchar **attribute_names,
- const gchar **attribute_values,
- gpointer user_data,
- GError **error)
-{
- EllipsizeStringData *data = (EllipsizeStringData *)user_data;
- int i;
-
- g_string_append_c (data->string, '<');
- g_string_append (data->string, element_name);
-
- for (i = 0; attribute_names[i] != NULL; i++)
- {
- g_string_append_c (data->string, ' ');
- g_string_append (data->string, attribute_names[i]);
- g_string_append (data->string, "=\"");
- g_string_append (data->string, attribute_values[i]);
- g_string_append_c (data->string, '"');
- }
-
- g_string_append_c (data->string, '>');
-}
-
-static void
-end_element_handler (GMarkupParseContext *context,
- const gchar *element_name,
- gpointer user_data,
- GError **error)
-{
- EllipsizeStringData *data = (EllipsizeStringData *)user_data;
-
- g_string_append (data->string, "</");
- g_string_append (data->string, element_name);
- g_string_append_c (data->string, '>');
-}
-
-static void
-append_ellipsized_text (const char *text,
- EllipsizeStringData *data,
- int text_len)
-{
- int position;
- int new_position;
-
- position = data->position;
- new_position = data->position + text_len;
-
- if (position > data->start_offset &&
- new_position < data->end_offset)
- {
- return;
- }
- else if ((position < data->start_offset &&
- new_position < data->start_offset) ||
- (position > data->end_offset &&
- new_position > data->end_offset))
- {
- g_string_append (data->string,
- text);
- }
- else if (position <= data->start_offset &&
- new_position >= data->end_offset)
- {
- if (position < data->start_offset)
- {
- g_string_append_len (data->string,
- text,
- data->start_offset -
- position);
- }
-
- g_string_append (data->string,
- ELLIPSIS);
-
- if (new_position > data->end_offset)
- {
- g_string_append_len (data->string,
- text + data->end_offset -
- position,
- position + text_len -
- data->end_offset);
- }
- }
-
- data->position = new_position;
-}
-
-static void
-text_handler (GMarkupParseContext *context,
- const gchar *text,
- gsize text_len,
- gpointer user_data,
- GError **error)
-{
- EllipsizeStringData *data = (EllipsizeStringData *)user_data;
-
- append_ellipsized_text (text, data, text_len);
-}
-
-static GMarkupParser pango_markup_parser = {
- start_element_handler,
- end_element_handler,
- text_handler,
- NULL,
- NULL
-};
-
-static char *
-ellipsize_string (const char *string,
- int start_offset,
- int end_offset,
- gboolean markup)
-{
- GString *str;
- EllipsizeStringData data;
- char *result;
- GMarkupParseContext *c;
-
- str = g_string_new (NULL);
- data.string = str;
- data.start_offset = start_offset;
- data.end_offset = end_offset;
- data.position = 0;
-
- if (markup)
- {
- c = g_markup_parse_context_new (&pango_markup_parser,
- 0, &data, NULL);
- g_markup_parse_context_parse (c, string, -1, NULL);
- g_markup_parse_context_free (c);
- }
- else
- {
- append_ellipsized_text (string, &data,
- g_utf8_strlen (string, -1));
- }
-
- result = g_string_free (str, FALSE);
-
- return result;
-}
-
-static char *
-ephy_string_ellipsize_start (const char *string, PangoLayout *layout, int width, gboolean markup)
-{
- int resulting_width;
- int *cuts;
- int *widths;
- int char_len;
- int truncate_offset;
- int bytes_end;
-
- /* Zero-length string can't get shorter - catch this here to
- * avoid expensive calculations
- */
- if (*string == '\0')
- return g_strdup ("");
-
- /* I'm not sure if this short-circuit is a net win; it might be better
- * to just dump this, and always do the compute_character_widths() etc.
- * down below.
- */
- resulting_width = measure_string_width (string, layout, markup);
-
- if (resulting_width <= width) {
- /* String is already short enough. */
- return g_strdup (string);
- }
-
- /* Remove width of an ellipsis */
- width -= measure_string_width (ELLIPSIS, layout, markup);
-
- if (width < 0) {
- /* No room even for an ellipsis. */
- return g_strdup ("");
- }
-
- /* Our algorithm involves removing enough chars from the string to bring
- * the width to the required small size. However, due to ligatures,
- * combining characters, etc., it's not guaranteed that the algorithm
- * always works 100%. It's sort of a heuristic thing. It should work
- * nearly all the time... but I wouldn't put in
- * g_assert (width of resulting string < width).
- *
- * Hmm, another thing that this breaks with is explicit line breaks
- * in "string"
- */
-
- compute_character_widths (string, layout, &char_len, &widths, &cuts, markup);
-
- for (truncate_offset = 1; truncate_offset < char_len; truncate_offset++) {
-
- resulting_width -= widths[truncate_offset];
-
- if (resulting_width <= width &&
- cuts[truncate_offset]) {
- break;
- }
- }
-
- g_free (cuts);
- g_free (widths);
-
- bytes_end = g_utf8_offset_to_pointer (string, truncate_offset) - string;
-
- return ellipsize_string (string, 0, bytes_end, markup);
-}
-
-static char *
-ephy_string_ellipsize_end (const char *string, PangoLayout *layout, int width, gboolean markup)
-{
- int resulting_width;
- int *cuts;
- int *widths;
- int char_len;
- int truncate_offset;
- int bytes_end;
-
- /* See explanatory comments in ellipsize_start */
-
- if (*string == '\0')
- return g_strdup ("");
-
- resulting_width = measure_string_width (string, layout, markup);
-
- if (resulting_width <= width) {
- return g_strdup (string);
- }
-
- width -= measure_string_width (ELLIPSIS, layout, markup);
-
- if (width < 0) {
- return g_strdup ("");
- }
-
- compute_character_widths (string, layout, &char_len, &widths, &cuts, markup);
-
- for (truncate_offset = char_len - 1; truncate_offset > 0; truncate_offset--) {
- resulting_width -= widths[truncate_offset];
- if (resulting_width <= width &&
- cuts[truncate_offset]) {
- break;
- }
- }
-
- g_free (cuts);
- g_free (widths);
-
- bytes_end = g_utf8_offset_to_pointer (string, truncate_offset) - string;
-
- return ellipsize_string (string, bytes_end,
- char_len, markup);
-}
-
-static char *
-ephy_string_ellipsize_middle (const char *string, PangoLayout *layout, int width, gboolean markup)
-{
- int resulting_width;
- int *cuts;
- int *widths;
- int char_len;
- int starting_fragment_length;
- int ending_fragment_offset;
- int bytes_start;
- int bytes_end;
-
- /* See explanatory comments in ellipsize_start */
-
- if (*string == '\0')
- return g_strdup ("");
-
- resulting_width = measure_string_width (string, layout, markup);
-
- if (resulting_width <= width) {
- return g_strdup (string);
- }
-
- width -= measure_string_width (ELLIPSIS, layout, markup);
-
- if (width < 0) {
- return g_strdup ("");
- }
-
- compute_character_widths (string, layout, &char_len, &widths, &cuts, markup);
-
- starting_fragment_length = char_len / 2;
- ending_fragment_offset = starting_fragment_length + 1;
-
- /* depending on whether the original string length is odd or even, start by
- * shaving off the characters from the starting or ending fragment
- */
- if (char_len % 2) {
- goto shave_end;
- }
-
- while (starting_fragment_length > 0 || ending_fragment_offset < char_len) {
- if (resulting_width <= width &&
- cuts[ending_fragment_offset] &&
- cuts[starting_fragment_length]) {
- break;
- }
-
- if (starting_fragment_length > 0) {
- resulting_width -= widths[starting_fragment_length];
- starting_fragment_length--;
- }
-
- shave_end:
- if (resulting_width <= width &&
- cuts[ending_fragment_offset] &&
- cuts[starting_fragment_length]) {
- break;
- }
-
- if (ending_fragment_offset < char_len) {
- resulting_width -= widths[ending_fragment_offset];
- ending_fragment_offset++;
- }
- }
-
- g_free (cuts);
- g_free (widths);
-
- bytes_start = g_utf8_offset_to_pointer (string, starting_fragment_length) - string;
- bytes_end = g_utf8_offset_to_pointer (string, ending_fragment_offset) - string;
-
- return ellipsize_string (string, bytes_start, bytes_end, markup);
-}
-
-
-/**
- * ephy_pango_layout_set_text_ellipsized
- *
- * @layout: a pango layout
- * @string: A a string to be ellipsized.
- * @width: Desired maximum width in points.
- * @mode: The desired ellipsizing mode.
- *
- * Truncates a string if required to fit in @width and sets it on the
- * layout. Truncation involves removing characters from the start, middle or end
- * respectively and replacing them with "...". Algorithm is a bit
- * fuzzy, won't work 100%.
- *
- */
-static void
-gul_pango_layout_set_text_ellipsized (PangoLayout *layout,
- const char *string,
- int width,
- EphyEllipsizeMode mode,
- gboolean markup)
-{
- char *s;
-
- g_return_if_fail (PANGO_IS_LAYOUT (layout));
- g_return_if_fail (string != NULL);
- g_return_if_fail (width >= 0);
-
- switch (mode) {
- case EPHY_ELLIPSIZE_START:
- s = ephy_string_ellipsize_start (string, layout, width, markup);
- break;
- case EPHY_ELLIPSIZE_MIDDLE:
- s = ephy_string_ellipsize_middle (string, layout, width, markup);
- break;
- case EPHY_ELLIPSIZE_END:
- s = ephy_string_ellipsize_end (string, layout, width, markup);
- break;
- default:
- g_return_if_reached ();
- s = NULL;
- }
-
- if (markup)
- {
- pango_layout_set_markup (layout, s, -1);
- }
- else
- {
- pango_layout_set_text (layout, s, -1);
- }
-
- g_free (s);
-}
-
-GType
-ephy_ellipsizing_label_get_type (void)
-{
- static GType ephy_ellipsizing_label_type = 0;
-
- if (ephy_ellipsizing_label_type == 0)
- {
- static const GTypeInfo our_info =
- {
- sizeof (EphyEllipsizingLabelClass),
- NULL, /* base_init */
- NULL, /* base_finalize */
- (GClassInitFunc) ephy_ellipsizing_label_class_init,
- NULL,
- NULL, /* class_data */
- sizeof (EphyEllipsizingLabel),
- 0, /* n_preallocs */
- (GInstanceInitFunc) ephy_ellipsizing_label_init
- };
-
- ephy_ellipsizing_label_type = g_type_register_static (GTK_TYPE_LABEL,
- "EphyEllipsizingLabel",
- &our_info, 0);
- }
-
- return ephy_ellipsizing_label_type;
-}
-
-static void
-ephy_ellipsizing_label_init (EphyEllipsizingLabel *label)
-{
- label->priv = g_new0 (EphyEllipsizingLabelPrivate, 1);
-
- label->priv->mode = EPHY_ELLIPSIZE_NONE;
-}
-
-static void
-real_finalize (GObject *object)
-{
- EphyEllipsizingLabel *label;
-
- label = EPHY_ELLIPSIZING_LABEL (object);
-
- g_free (label->priv->full_text);
- g_free (label->priv);
-
- G_OBJECT_CLASS (parent_class)->finalize (object);
-}
-
-GtkWidget*
-ephy_ellipsizing_label_new (const char *string)
-{
- EphyEllipsizingLabel *label;
-
- label = g_object_new (EPHY_TYPE_ELLIPSIZING_LABEL, NULL);
- ephy_ellipsizing_label_set_text (label, string);
-
- return GTK_WIDGET (label);
-}
-
-void
-ephy_ellipsizing_label_set_text (EphyEllipsizingLabel *label,
- const char *string)
-{
- g_return_if_fail (EPHY_IS_ELLIPSIZING_LABEL (label));
-
- if (ephy_str_is_equal (string, label->priv->full_text)) {
- return;
- }
-
- g_free (label->priv->full_text);
- label->priv->full_text = g_strdup (string);
-
- /* Queues a resize as side effect */
- gtk_label_set_text (GTK_LABEL (label), label->priv->full_text);
-}
-
-void
-ephy_ellipsizing_label_set_markup (EphyEllipsizingLabel *label,
- const char *string)
-{
- g_return_if_fail (EPHY_IS_ELLIPSIZING_LABEL (label));
-
- if (ephy_str_is_equal (string, label->priv->full_text)) {
- return;
- }
-
- g_free (label->priv->full_text);
- label->priv->full_text = g_strdup (string);
-
- /* Queues a resize as side effect */
- gtk_label_set_markup (GTK_LABEL (label), label->priv->full_text);
-}
-
-void
-ephy_ellipsizing_label_set_mode (EphyEllipsizingLabel *label,
- EphyEllipsizeMode mode)
-{
- g_return_if_fail (EPHY_IS_ELLIPSIZING_LABEL (label));
-
- label->priv->mode = mode;
-}
-
-static void
-real_size_request (GtkWidget *widget, GtkRequisition *requisition)
-{
- GTK_WIDGET_CLASS (parent_class)->size_request (widget, requisition);
-
- /* Don't demand any particular width; will draw ellipsized into whatever size we're given */
- requisition->width = 0;
-}
-
-static void
-real_size_allocate (GtkWidget *widget, GtkAllocation *allocation)
-{
- EphyEllipsizingLabel *label;
- gboolean markup;
-
- markup = gtk_label_get_use_markup (GTK_LABEL (widget));
-
- label = EPHY_ELLIPSIZING_LABEL (widget);
-
- /* This is the bad hack of the century, using private
- * GtkLabel layout object. If the layout is NULL
- * then it got blown away since size request,
- * we just punt in that case, I don't know what to do really.
- */
-
- if (GTK_LABEL (label)->layout != NULL) {
- if (label->priv->full_text == NULL) {
- pango_layout_set_text (GTK_LABEL (label)->layout, "", -1);
- } else {
- EphyEllipsizeMode mode;
-
- if (label->priv->mode != EPHY_ELLIPSIZE_NONE)
- mode = label->priv->mode;
-
- if (ABS (GTK_MISC (label)->xalign - 0.5) < 1e-12)
- mode = EPHY_ELLIPSIZE_MIDDLE;
- else if (GTK_MISC (label)->xalign < 0.5)
- mode = EPHY_ELLIPSIZE_END;
- else
- mode = EPHY_ELLIPSIZE_START;
-
- gul_pango_layout_set_text_ellipsized (GTK_LABEL (label)->layout,
- label->priv->full_text,
- allocation->width,
- mode,
- markup);
-
- gtk_widget_queue_draw (GTK_WIDGET (label));
- }
- }
-
- GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
-}
-
-static gboolean
-real_expose_event (GtkWidget *widget, GdkEventExpose *event)
-{
- EphyEllipsizingLabel *label;
- GtkRequisition req;
-
- label = EPHY_ELLIPSIZING_LABEL (widget);
-
- /* push/pop the actual size so expose draws in the right
- * place, yes this is bad hack central. Here we assume the
- * ellipsized text has been set on the layout in size_allocate
- */
- GTK_WIDGET_CLASS (parent_class)->size_request (widget, &req);
- widget->requisition.width = req.width;
- GTK_WIDGET_CLASS (parent_class)->expose_event (widget, event);
- widget->requisition.width = 0;
-
- return FALSE;
-}
-
-
-static void
-ephy_ellipsizing_label_class_init (EphyEllipsizingLabelClass *klass)
-{
- GtkWidgetClass *widget_class;
-
- parent_class = g_type_class_peek_parent (klass);
-
- widget_class = GTK_WIDGET_CLASS (klass);
-
- G_OBJECT_CLASS (klass)->finalize = real_finalize;
-
- widget_class->size_request = real_size_request;
- widget_class->size_allocate = real_size_allocate;
- widget_class->expose_event = real_expose_event;
-}
-
diff --git a/lib/widgets/ephy-ellipsizing-label.h b/lib/widgets/ephy-ellipsizing-label.h
deleted file mode 100644
index 1ea2121e6..000000000
--- a/lib/widgets/ephy-ellipsizing-label.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/* eel-ellipsizing-label.h: Subclass of GtkLabel that ellipsizes the text.
-
- Copyright (C) 2001 Eazel, Inc.
-
- The Gnome Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The Gnome Library 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the Gnome Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
-
- Author: John Sullivan <sullivan@eazel.com>,
-
- $Id$
- */
-
-#ifndef EPHY_ELLIPSIZING_LABEL_H
-#define EPHY_ELLIPSIZING_LABEL_H
-
-#include <gtk/gtklabel.h>
-
-#define EPHY_TYPE_ELLIPSIZING_LABEL (ephy_ellipsizing_label_get_type ())
-#define EPHY_ELLIPSIZING_LABEL(obj) (GTK_CHECK_CAST ((obj), EPHY_TYPE_ELLIPSIZING_LABEL, EphyEllipsizingLabel))
-#define EPHY_ELLIPSIZING_LABEL_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), EPHY_TYPE_ELLIPSIZING_LABEL, EphyEllipsizingLabelClass))
-#define EPHY_IS_ELLIPSIZING_LABEL(obj) (GTK_CHECK_TYPE ((obj), EPHY_TYPE_ELLIPSIZING_LABEL))
-#define EPHY_IS_ELLIPSIZING_LABEL_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), EPHY_TYPE_ELLIPSIZING_LABEL))
-
-typedef struct EphyEllipsizingLabelPrivate EphyEllipsizingLabelPrivate;
-
-typedef enum
-{
- EPHY_ELLIPSIZE_NONE,
- EPHY_ELLIPSIZE_START,
- EPHY_ELLIPSIZE_MIDDLE,
- EPHY_ELLIPSIZE_END
-} EphyEllipsizeMode;
-
-typedef struct
-{
- GtkLabel parent;
-
- /*< private >*/
- EphyEllipsizingLabelPrivate *priv;
-} EphyEllipsizingLabel;
-
-typedef struct
-{
- GtkLabelClass parent_class;
-} EphyEllipsizingLabelClass;
-
-GType ephy_ellipsizing_label_get_type (void);
-
-GtkWidget *ephy_ellipsizing_label_new (const char *string);
-
-void ephy_ellipsizing_label_set_mode (EphyEllipsizingLabel *label,
- EphyEllipsizeMode mode);
-
-void ephy_ellipsizing_label_set_text (EphyEllipsizingLabel *label,
- const char *string);
-
-void ephy_ellipsizing_label_set_markup (EphyEllipsizingLabel *label,
- const char *string);
-
-G_END_DECLS
-
-#endif /* EPHY_ELLIPSIZING_LABEL_H */
diff --git a/lib/widgets/ephy-label.c b/lib/widgets/ephy-label.c
new file mode 100644
index 000000000..97c3e1878
--- /dev/null
+++ b/lib/widgets/ephy-label.c
@@ -0,0 +1,3448 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
+ * file for a list of people on the GTK+ Team. See the ChangeLog
+ * files for a list of changes. These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <math.h>
+#include <string.h>
+#include "ephy-label.h"
+#include <gtk/gtkmain.h>
+#include <gtk/gtkwindow.h>
+#include <gdk/gdkkeysyms.h>
+#include <gtk/gtkclipboard.h>
+#include <pango/pango.h>
+#include <gtk/gtkimagemenuitem.h>
+#include <gtk/gtkseparatormenuitem.h>
+#include <gtk/gtkmenuitem.h>
+#include <gtk/gtknotebook.h>
+#include <gtk/gtkstock.h>
+#include <gtk/gtkbindings.h>
+#include <glib/gi18n.h>
+#include <glib-object.h>
+
+#include "ephy-marshal.h"
+
+/* we don't need to translate the property blurbs */
+#undef P_
+#define P_(string) (string)
+
+struct _EphyLabelSelectionInfo
+{
+ GdkWindow *window;
+ gint selection_anchor;
+ gint selection_end;
+ GtkWidget *popup_menu;
+};
+
+enum {
+ MOVE_CURSOR,
+ COPY_CLIPBOARD,
+ POPULATE_POPUP,
+ LAST_SIGNAL
+};
+
+enum {
+ PROP_0,
+ PROP_LABEL,
+ PROP_ATTRIBUTES,
+ PROP_USE_MARKUP,
+ PROP_USE_UNDERLINE,
+ PROP_JUSTIFY,
+ PROP_PATTERN,
+ PROP_WRAP,
+ PROP_SELECTABLE,
+ PROP_MNEMONIC_KEYVAL,
+ PROP_MNEMONIC_WIDGET,
+ PROP_CURSOR_POSITION,
+ PROP_SELECTION_BOUND,
+ PROP_ELLIPSIZE
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+static void ephy_label_class_init (EphyLabelClass *klass);
+static void ephy_label_init (EphyLabel *label);
+static void ephy_label_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void ephy_label_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
+static void ephy_label_destroy (GtkObject *object);
+static void ephy_label_finalize (GObject *object);
+static void ephy_label_size_request (GtkWidget *widget,
+ GtkRequisition *requisition);
+static void ephy_label_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation);
+static void ephy_label_state_changed (GtkWidget *widget,
+ GtkStateType state);
+static void ephy_label_style_set (GtkWidget *widget,
+ GtkStyle *previous_style);
+static void ephy_label_direction_changed (GtkWidget *widget,
+ GtkTextDirection previous_dir);
+static gint ephy_label_expose (GtkWidget *widget,
+ GdkEventExpose *event);
+
+static void ephy_label_realize (GtkWidget *widget);
+static void ephy_label_unrealize (GtkWidget *widget);
+static void ephy_label_map (GtkWidget *widget);
+static void ephy_label_unmap (GtkWidget *widget);
+
+static gboolean ephy_label_button_press (GtkWidget *widget,
+ GdkEventButton *event);
+static gboolean ephy_label_button_release (GtkWidget *widget,
+ GdkEventButton *event);
+static gboolean ephy_label_motion (GtkWidget *widget,
+ GdkEventMotion *event);
+
+
+static void ephy_label_set_text_internal (EphyLabel *label,
+ gchar *str);
+static void ephy_label_set_label_internal (EphyLabel *label,
+ gchar *str);
+static void ephy_label_set_use_markup_internal (EphyLabel *label,
+ gboolean val);
+static void ephy_label_set_use_underline_internal (EphyLabel *label,
+ gboolean val);
+static void ephy_label_set_attributes_internal (EphyLabel *label,
+ PangoAttrList *attrs);
+static void ephy_label_set_uline_text_internal (EphyLabel *label,
+ const gchar *str);
+static void ephy_label_set_pattern_internal (EphyLabel *label,
+ const gchar *pattern);
+static void set_markup (EphyLabel *label,
+ const gchar *str,
+ gboolean with_uline);
+static void ephy_label_recalculate (EphyLabel *label);
+static void ephy_label_hierarchy_changed (GtkWidget *widget,
+ GtkWidget *old_toplevel);
+static void ephy_label_screen_changed (GtkWidget *widget,
+ GdkScreen *old_screen);
+
+static void ephy_label_create_window (EphyLabel *label);
+static void ephy_label_destroy_window (EphyLabel *label);
+static void ephy_label_clear_layout (EphyLabel *label);
+static void ephy_label_ensure_layout (EphyLabel *label);
+static void ephy_label_select_region_index (EphyLabel *label,
+ gint anchor_index,
+ gint end_index);
+
+static gboolean ephy_label_mnemonic_activate (GtkWidget *widget,
+ gboolean group_cycling);
+static void ephy_label_setup_mnemonic (EphyLabel *label,
+ guint last_key);
+static gboolean ephy_label_focus (GtkWidget *widget,
+ GtkDirectionType direction);
+
+/* For selectable lables: */
+static void ephy_label_move_cursor (EphyLabel *label,
+ GtkMovementStep step,
+ gint count,
+ gboolean extend_selection);
+static void ephy_label_copy_clipboard (EphyLabel *label);
+static void ephy_label_select_all (EphyLabel *label);
+static void ephy_label_do_popup (EphyLabel *label,
+ GdkEventButton *event);
+
+static gint ephy_label_move_forward_word (EphyLabel *label,
+ gint start);
+static gint ephy_label_move_backward_word (EphyLabel *label,
+ gint start);
+
+static GtkMiscClass *parent_class = NULL;
+
+
+GType
+ephy_label_get_type (void)
+{
+ static GType label_type = 0;
+
+ if (!label_type)
+ {
+ static const GTypeInfo label_info =
+ {
+ sizeof (EphyLabelClass),
+ NULL, /* base_init */
+ NULL, /* base_finalize */
+ (GClassInitFunc) ephy_label_class_init,
+ NULL, /* class_finalize */
+ NULL, /* class_data */
+ sizeof (EphyLabel),
+ 32, /* n_preallocs */
+ (GInstanceInitFunc) ephy_label_init,
+ };
+
+ label_type = g_type_register_static (GTK_TYPE_MISC, "EphyLabel",
+ &label_info, 0);
+ }
+
+ return label_type;
+}
+
+static void
+add_move_binding (GtkBindingSet *binding_set,
+ guint keyval,
+ guint modmask,
+ GtkMovementStep step,
+ gint count)
+{
+ g_return_if_fail ((modmask & GDK_SHIFT_MASK) == 0);
+
+ gtk_binding_entry_add_signal (binding_set, keyval, modmask,
+ "move_cursor", 3,
+ G_TYPE_ENUM, step,
+ G_TYPE_INT, count,
+ G_TYPE_BOOLEAN, FALSE);
+
+ /* Selection-extending version */
+ gtk_binding_entry_add_signal (binding_set, keyval, modmask | GDK_SHIFT_MASK,
+ "move_cursor", 3,
+ G_TYPE_ENUM, step,
+ G_TYPE_INT, count,
+ G_TYPE_BOOLEAN, TRUE);
+}
+
+static void
+ephy_label_class_init (EphyLabelClass *class)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS (class);
+ GtkObjectClass *object_class = GTK_OBJECT_CLASS (class);
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
+ GtkBindingSet *binding_set;
+
+ parent_class = g_type_class_peek_parent (class);
+
+ gobject_class->set_property = ephy_label_set_property;
+ gobject_class->get_property = ephy_label_get_property;
+ gobject_class->finalize = ephy_label_finalize;
+
+ object_class->destroy = ephy_label_destroy;
+
+ widget_class->size_request = ephy_label_size_request;
+ widget_class->size_allocate = ephy_label_size_allocate;
+ widget_class->state_changed = ephy_label_state_changed;
+ widget_class->style_set = ephy_label_style_set;
+ widget_class->direction_changed = ephy_label_direction_changed;
+ widget_class->expose_event = ephy_label_expose;
+ widget_class->realize = ephy_label_realize;
+ widget_class->unrealize = ephy_label_unrealize;
+ widget_class->map = ephy_label_map;
+ widget_class->unmap = ephy_label_unmap;
+ widget_class->button_press_event = ephy_label_button_press;
+ widget_class->button_release_event = ephy_label_button_release;
+ widget_class->motion_notify_event = ephy_label_motion;
+ widget_class->hierarchy_changed = ephy_label_hierarchy_changed;
+ widget_class->screen_changed = ephy_label_screen_changed;
+ widget_class->mnemonic_activate = ephy_label_mnemonic_activate;
+ widget_class->focus = ephy_label_focus;
+
+ class->move_cursor = ephy_label_move_cursor;
+ class->copy_clipboard = ephy_label_copy_clipboard;
+
+ signals[MOVE_CURSOR] =
+ g_signal_new ("move_cursor",
+ G_OBJECT_CLASS_TYPE (gobject_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (EphyLabelClass, move_cursor),
+ NULL, NULL,
+ ephy_marshal_VOID__ENUM_INT_BOOLEAN,
+ G_TYPE_NONE, 3,
+ GTK_TYPE_MOVEMENT_STEP,
+ G_TYPE_INT,
+ G_TYPE_BOOLEAN);
+
+ signals[COPY_CLIPBOARD] =
+ g_signal_new ("copy_clipboard",
+ G_OBJECT_CLASS_TYPE (gobject_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (EphyLabelClass, copy_clipboard),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ signals[POPULATE_POPUP] =
+ g_signal_new ("populate_popup",
+ G_OBJECT_CLASS_TYPE (gobject_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (EphyLabelClass, populate_popup),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__OBJECT,
+ G_TYPE_NONE, 1,
+ GTK_TYPE_MENU);
+
+ g_object_class_install_property (gobject_class,
+ PROP_LABEL,
+ g_param_spec_string ("label",
+ P_("Label"),
+ P_("The text of the label"),
+ NULL,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_ATTRIBUTES,
+ g_param_spec_boxed ("attributes",
+ P_("Attributes"),
+ P_("A list of style attributes to apply to the text of the label"),
+ PANGO_TYPE_ATTR_LIST,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_USE_MARKUP,
+ g_param_spec_boolean ("use_markup",
+ P_("Use markup"),
+ P_("The text of the label includes XML markup. See pango_parse_markup()"),
+ FALSE,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_USE_UNDERLINE,
+ g_param_spec_boolean ("use_underline",
+ P_("Use underline"),
+ P_("If set, an underline in the text indicates the next character should be used for the mnemonic accelerator key"),
+ FALSE,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_JUSTIFY,
+ g_param_spec_enum ("justify",
+ P_("Justification"),
+ P_("The alignment of the lines in the text of the label relative to each other. This does NOT affect the alignment of the label within its allocation. See GtkMisc::xalign for that"),
+ GTK_TYPE_JUSTIFICATION,
+ GTK_JUSTIFY_LEFT,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_PATTERN,
+ g_param_spec_string ("pattern",
+ P_("Pattern"),
+ P_("A string with _ characters in positions correspond to characters in the text to underline"),
+ NULL,
+ G_PARAM_WRITABLE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_WRAP,
+ g_param_spec_boolean ("wrap",
+ P_("Line wrap"),
+ P_("If set, wrap lines if the text becomes too wide"),
+ FALSE,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_SELECTABLE,
+ g_param_spec_boolean ("selectable",
+ P_("Selectable"),
+ P_("Whether the label text can be selected with the mouse"),
+ FALSE,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_MNEMONIC_KEYVAL,
+ g_param_spec_uint ("mnemonic_keyval",
+ P_("Mnemonic key"),
+ P_("The mnemonic accelerator key for this label"),
+ 0,
+ G_MAXUINT,
+ GDK_VoidSymbol,
+ G_PARAM_READABLE));
+ g_object_class_install_property (gobject_class,
+ PROP_MNEMONIC_WIDGET,
+ g_param_spec_object ("mnemonic_widget",
+ P_("Mnemonic widget"),
+ P_("The widget to be activated when the label's mnemonic "
+ "key is pressed"),
+ GTK_TYPE_WIDGET,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_CURSOR_POSITION,
+ g_param_spec_int ("cursor_position",
+ P_("Cursor Position"),
+ P_("The current position of the insertion cursor in chars"),
+ 0,
+ G_MAXINT,
+ 0,
+ G_PARAM_READABLE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_SELECTION_BOUND,
+ g_param_spec_int ("selection_bound",
+ P_("Selection Bound"),
+ P_("The position of the opposite end of the selection from the cursor in chars"),
+ 0,
+ G_MAXINT,
+ 0,
+ G_PARAM_READABLE));
+
+ /**
+ * EphyLabel:ellipsize:
+ *
+ * The preferred place to ellipsize the string, if the label does not have
+ * enough room to display the entire string, specified as a #PangoEllisizeMode.
+ *
+ * Note that setting this property to a value other than %PANGO_ELLIPSIZE_NONE
+ * has the side-effect that the label requests only enough space to display the
+ * ellipsis "...". Ellipsizing labels must be packed in a container which
+ * ensures that the label gets a reasonable size allocated. In particular,
+ * this means that ellipsizing labels don't work well in notebook tabs, unless
+ * the tab's ::tab-expand property is set to %TRUE.
+ *
+ * Since: 2.6
+ */
+ g_object_class_install_property (gobject_class,
+ PROP_ELLIPSIZE,
+ g_param_spec_enum ("ellipsize",
+ P_("Ellipsize"),
+ P_("The preferred place to ellipsize the string, if the label does not have enough room to display the entire string, if at all"),
+ PANGO_TYPE_ELLIPSIZE_MODE,
+ PANGO_ELLIPSIZE_NONE,
+ G_PARAM_READWRITE));
+
+ /*
+ * Key bindings
+ */
+
+ binding_set = gtk_binding_set_by_class (class);
+
+ /* Moving the insertion point */
+ add_move_binding (binding_set, GDK_Right, 0,
+ GTK_MOVEMENT_VISUAL_POSITIONS, 1);
+
+ add_move_binding (binding_set, GDK_Left, 0,
+ GTK_MOVEMENT_VISUAL_POSITIONS, -1);
+
+ add_move_binding (binding_set, GDK_KP_Right, 0,
+ GTK_MOVEMENT_VISUAL_POSITIONS, 1);
+
+ add_move_binding (binding_set, GDK_KP_Left, 0,
+ GTK_MOVEMENT_VISUAL_POSITIONS, -1);
+
+ add_move_binding (binding_set, GDK_f, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_LOGICAL_POSITIONS, 1);
+
+ add_move_binding (binding_set, GDK_b, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_LOGICAL_POSITIONS, -1);
+
+ add_move_binding (binding_set, GDK_Right, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_WORDS, 1);
+
+ add_move_binding (binding_set, GDK_Left, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_WORDS, -1);
+
+ add_move_binding (binding_set, GDK_KP_Right, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_WORDS, 1);
+
+ add_move_binding (binding_set, GDK_KP_Left, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_WORDS, -1);
+
+ add_move_binding (binding_set, GDK_a, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_PARAGRAPH_ENDS, -1);
+
+ add_move_binding (binding_set, GDK_e, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_PARAGRAPH_ENDS, 1);
+
+ add_move_binding (binding_set, GDK_f, GDK_MOD1_MASK,
+ GTK_MOVEMENT_WORDS, 1);
+
+ add_move_binding (binding_set, GDK_b, GDK_MOD1_MASK,
+ GTK_MOVEMENT_WORDS, -1);
+
+ add_move_binding (binding_set, GDK_Home, 0,
+ GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
+
+ add_move_binding (binding_set, GDK_End, 0,
+ GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
+
+ add_move_binding (binding_set, GDK_KP_Home, 0,
+ GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
+
+ add_move_binding (binding_set, GDK_KP_End, 0,
+ GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
+
+ add_move_binding (binding_set, GDK_Home, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_BUFFER_ENDS, -1);
+
+ add_move_binding (binding_set, GDK_End, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_BUFFER_ENDS, 1);
+
+ add_move_binding (binding_set, GDK_KP_Home, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_BUFFER_ENDS, -1);
+
+ add_move_binding (binding_set, GDK_KP_End, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_BUFFER_ENDS, 1);
+
+ /* copy */
+ gtk_binding_entry_add_signal (binding_set, GDK_c, GDK_CONTROL_MASK,
+ "copy_clipboard", 0);
+}
+
+static void
+ephy_label_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ EphyLabel *label;
+
+ label = EPHY_LABEL (object);
+
+ switch (prop_id)
+ {
+ case PROP_LABEL:
+ ephy_label_set_label (label, g_value_get_string (value));
+ break;
+ case PROP_ATTRIBUTES:
+ ephy_label_set_attributes (label, g_value_get_boxed (value));
+ break;
+ case PROP_USE_MARKUP:
+ ephy_label_set_use_markup (label, g_value_get_boolean (value));
+ break;
+ case PROP_USE_UNDERLINE:
+ ephy_label_set_use_underline (label, g_value_get_boolean (value));
+ break;
+ case PROP_JUSTIFY:
+ ephy_label_set_justify (label, g_value_get_enum (value));
+ break;
+ case PROP_PATTERN:
+ ephy_label_set_pattern (label, g_value_get_string (value));
+ break;
+ case PROP_WRAP:
+ ephy_label_set_line_wrap (label, g_value_get_boolean (value));
+ break;
+ case PROP_SELECTABLE:
+ ephy_label_set_selectable (label, g_value_get_boolean (value));
+ break;
+ case PROP_MNEMONIC_WIDGET:
+ ephy_label_set_mnemonic_widget (label, (GtkWidget*) g_value_get_object (value));
+ break;
+ case PROP_ELLIPSIZE:
+ ephy_label_set_ellipsize (label, g_value_get_enum (value));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+ephy_label_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ EphyLabel *label;
+
+ label = EPHY_LABEL (object);
+
+ switch (prop_id)
+ {
+ case PROP_LABEL:
+ g_value_set_string (value, label->label);
+ break;
+ case PROP_ATTRIBUTES:
+ g_value_set_boxed (value, label->attrs);
+ break;
+ case PROP_USE_MARKUP:
+ g_value_set_boolean (value, label->use_markup);
+ break;
+ case PROP_USE_UNDERLINE:
+ g_value_set_boolean (value, label->use_underline);
+ break;
+ case PROP_JUSTIFY:
+ g_value_set_enum (value, label->jtype);
+ break;
+ case PROP_WRAP:
+ g_value_set_boolean (value, label->wrap);
+ break;
+ case PROP_SELECTABLE:
+ g_value_set_boolean (value, ephy_label_get_selectable (label));
+ break;
+ case PROP_MNEMONIC_KEYVAL:
+ g_value_set_uint (value, label->mnemonic_keyval);
+ break;
+ case PROP_MNEMONIC_WIDGET:
+ g_value_set_object (value, (GObject*) label->mnemonic_widget);
+ break;
+ case PROP_CURSOR_POSITION:
+ if (label->select_info)
+ {
+ gint offset = g_utf8_pointer_to_offset (label->text,
+ label->text + label->select_info->selection_end);
+ g_value_set_int (value, offset);
+ }
+ else
+ g_value_set_int (value, 0);
+ break;
+ case PROP_SELECTION_BOUND:
+ if (label->select_info)
+ {
+ gint offset = g_utf8_pointer_to_offset (label->text,
+ label->text + label->select_info->selection_anchor);
+ g_value_set_int (value, offset);
+ }
+ else
+ g_value_set_int (value, 0);
+ break;
+ case PROP_ELLIPSIZE:
+ g_value_set_enum (value, label->ellipsize);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+ephy_label_init (EphyLabel *label)
+{
+ GTK_WIDGET_SET_FLAGS (label, GTK_NO_WINDOW);
+
+ label->label = NULL;
+
+ label->jtype = GTK_JUSTIFY_LEFT;
+ label->wrap = FALSE;
+ label->ellipsize = PANGO_ELLIPSIZE_NONE;
+
+ label->use_underline = FALSE;
+ label->use_markup = FALSE;
+
+ label->mnemonic_keyval = GDK_VoidSymbol;
+ label->layout = NULL;
+ label->text = NULL;
+ label->attrs = NULL;
+
+ label->mnemonic_widget = NULL;
+ label->mnemonic_window = NULL;
+
+ ephy_label_set_text (label, "");
+}
+
+/**
+ * ephy_label_new:
+ * @str: The text of the label
+ *
+ * Creates a new label with the given text inside it. You can
+ * pass %NULL to get an empty label widget.
+ *
+ * Return value: the new #EphyLabel
+ **/
+GtkWidget*
+ephy_label_new (const gchar *str)
+{
+ EphyLabel *label;
+
+ label = g_object_new (EPHY_TYPE_LABEL, NULL);
+
+ if (str && *str)
+ ephy_label_set_text (label, str);
+
+ return GTK_WIDGET (label);
+}
+
+/**
+ * ephy_label_new_with_mnemonic:
+ * @str: The text of the label, with an underscore in front of the
+ * mnemonic character
+ *
+ * Creates a new #EphyLabel, containing the text in @str.
+ *
+ * If characters in @str are preceded by an underscore, they are
+ * underlined. If you need a literal underscore character in a label, use
+ * '__' (two underscores). The first underlined character represents a
+ * keyboard accelerator called a mnemonic. The mnemonic key can be used
+ * to activate another widget, chosen automatically, or explicitly using
+ * ephy_label_set_mnemonic_widget().
+ *
+ * If ephy_label_set_mnemonic_widget()
+ * is not called, then the first activatable ancestor of the #EphyLabel
+ * will be chosen as the mnemonic widget. For instance, if the
+ * label is inside a button or menu item, the button or menu item will
+ * automatically become the mnemonic widget and be activated by
+ * the mnemonic.
+ *
+ * Return value: the new #EphyLabel
+ **/
+GtkWidget*
+ephy_label_new_with_mnemonic (const gchar *str)
+{
+ EphyLabel *label;
+
+ label = g_object_new (EPHY_TYPE_LABEL, NULL);
+
+ if (str && *str)
+ ephy_label_set_text_with_mnemonic (label, str);
+
+ return GTK_WIDGET (label);
+}
+
+static gboolean
+ephy_label_mnemonic_activate (GtkWidget *widget,
+ gboolean group_cycling)
+{
+ GtkWidget *parent;
+
+ if (EPHY_LABEL (widget)->mnemonic_widget)
+ return gtk_widget_mnemonic_activate (EPHY_LABEL (widget)->mnemonic_widget, group_cycling);
+
+ /* Try to find the widget to activate by traversing the
+ * widget's ancestry.
+ */
+ parent = widget->parent;
+
+ if (parent && GTK_IS_NOTEBOOK (parent))
+ return FALSE;
+
+ while (parent)
+ {
+ if (GTK_WIDGET_CAN_FOCUS (parent) ||
+ (!group_cycling && GTK_WIDGET_GET_CLASS (parent)->activate_signal) ||
+ (parent->parent && GTK_IS_NOTEBOOK (parent->parent)) ||
+ (GTK_IS_MENU_ITEM (parent)))
+ return gtk_widget_mnemonic_activate (parent, group_cycling);
+ parent = parent->parent;
+ }
+
+ /* barf if there was nothing to activate */
+ g_warning ("Couldn't find a target for a mnemonic activation.");
+ gdk_display_beep (gtk_widget_get_display (widget));
+
+ return FALSE;
+}
+
+static void
+ephy_label_setup_mnemonic (EphyLabel *label,
+ guint last_key)
+{
+ GtkWidget *toplevel;
+
+ if (last_key != GDK_VoidSymbol && label->mnemonic_window)
+ {
+ gtk_window_remove_mnemonic (label->mnemonic_window,
+ last_key,
+ GTK_WIDGET (label));
+ label->mnemonic_window = NULL;
+ }
+
+ if (label->mnemonic_keyval == GDK_VoidSymbol)
+ return;
+
+ toplevel = gtk_widget_get_toplevel (GTK_WIDGET (label));
+ if (GTK_WIDGET_TOPLEVEL (toplevel))
+ {
+ gtk_window_add_mnemonic (GTK_WINDOW (toplevel),
+ label->mnemonic_keyval,
+ GTK_WIDGET (label));
+ label->mnemonic_window = GTK_WINDOW (toplevel);
+ }
+}
+
+static void
+ephy_label_hierarchy_changed (GtkWidget *widget,
+ GtkWidget *old_toplevel)
+{
+ EphyLabel *label = EPHY_LABEL (widget);
+
+ ephy_label_setup_mnemonic (label, label->mnemonic_keyval);
+}
+
+static void
+ephy_label_screen_changed (GtkWidget *widget,
+ GdkScreen *old_screen)
+{
+ ephy_label_clear_layout (EPHY_LABEL (widget));
+}
+
+static void
+label_mnemonic_widget_weak_notify (gpointer data,
+ GObject *where_the_object_was)
+{
+ EphyLabel *label = data;
+
+ label->mnemonic_widget = NULL;
+ g_object_notify (G_OBJECT (label), "mnemonic_widget");
+}
+
+/**
+ * ephy_label_set_mnemonic_widget:
+ * @label: a #EphyLabel
+ * @widget: the target #GtkWidget
+ *
+ * If the label has been set so that it has an mnemonic key (using
+ * i.e. ephy_label_set_markup_with_mnemonic(),
+ * ephy_label_set_text_with_mnemonic(), ephy_label_new_with_mnemonic()
+ * or the "use_underline" property) the label can be associated with a
+ * widget that is the target of the mnemonic. When the label is inside
+ * a widget (like a #GtkButton or a #GtkNotebook tab) it is
+ * automatically associated with the correct widget, but sometimes
+ * (i.e. when the target is a #GtkEntry next to the label) you need to
+ * set it explicitly using this function.
+ *
+ * The target widget will be accelerated by emitting "mnemonic_activate" on it.
+ * The default handler for this signal will activate the widget if there are no
+ * mnemonic collisions and toggle focus between the colliding widgets otherwise.
+ **/
+void
+ephy_label_set_mnemonic_widget (EphyLabel *label,
+ GtkWidget *widget)
+{
+ g_return_if_fail (EPHY_IS_LABEL (label));
+ if (widget)
+ g_return_if_fail (GTK_IS_WIDGET (widget));
+
+ if (label->mnemonic_widget)
+ {
+ gtk_widget_remove_mnemonic_label (label->mnemonic_widget, GTK_WIDGET (label));
+ g_object_weak_unref (G_OBJECT (label->mnemonic_widget),
+ label_mnemonic_widget_weak_notify,
+ label);
+ }
+ label->mnemonic_widget = widget;
+ if (label->mnemonic_widget)
+ {
+ g_object_weak_ref (G_OBJECT (label->mnemonic_widget),
+ label_mnemonic_widget_weak_notify,
+ label);
+ gtk_widget_add_mnemonic_label (label->mnemonic_widget, GTK_WIDGET (label));
+ }
+
+ g_object_notify (G_OBJECT (label), "mnemonic_widget");
+}
+
+/**
+ * ephy_label_get_mnemonic_widget:
+ * @label: a #EphyLabel
+ *
+ * Retrieves the target of the mnemonic (keyboard shortcut) of this
+ * label. See ephy_label_set_mnemonic_widget ().
+ *
+ * Return value: the target of the label's mnemonic, or %NULL if none
+ * has been set and the default algorithm will be used.
+ **/
+GtkWidget *
+ephy_label_get_mnemonic_widget (EphyLabel *label)
+{
+ g_return_val_if_fail (EPHY_IS_LABEL (label), NULL);
+
+ return label->mnemonic_widget;
+}
+
+/**
+ * ephy_label_get_mnemonic_keyval:
+ * @label: a #EphyLabel
+ *
+ * If the label has been set so that it has an mnemonic key this function
+ * returns the keyval used for the mnemonic accelerator. If there is no
+ * mnemonic set up it returns #GDK_VoidSymbol.
+ *
+ * Returns: GDK keyval usable for accelerators, or #GDK_VoidSymbol
+ **/
+guint
+ephy_label_get_mnemonic_keyval (EphyLabel *label)
+{
+ g_return_val_if_fail (EPHY_IS_LABEL (label), GDK_VoidSymbol);
+
+ return label->mnemonic_keyval;
+}
+
+static void
+ephy_label_set_text_internal (EphyLabel *label,
+ gchar *str)
+{
+ g_free (label->text);
+
+ label->text = str;
+
+ ephy_label_select_region_index (label, 0, 0);
+}
+
+static void
+ephy_label_set_label_internal (EphyLabel *label,
+ gchar *str)
+{
+ g_free (label->label);
+
+ label->label = str;
+
+ g_object_notify (G_OBJECT (label), "label");
+}
+
+static void
+ephy_label_set_use_markup_internal (EphyLabel *label,
+ gboolean val)
+{
+ val = val != FALSE;
+ if (label->use_markup != val)
+ {
+ g_object_notify (G_OBJECT (label), "use_markup");
+ label->use_markup = val;
+ }
+}
+
+static void
+ephy_label_set_use_underline_internal (EphyLabel *label,
+ gboolean val)
+{
+ val = val != FALSE;
+ if (label->use_underline != val)
+ {
+ g_object_notify (G_OBJECT (label), "use_underline");
+ label->use_underline = val;
+ }
+}
+
+static void
+ephy_label_set_attributes_internal (EphyLabel *label,
+ PangoAttrList *attrs)
+{
+ if (attrs)
+ pango_attr_list_ref (attrs);
+
+ if (label->attrs)
+ pango_attr_list_unref (label->attrs);
+
+ if (!label->use_markup && !label->use_underline)
+ {
+ if (attrs)
+ pango_attr_list_ref (attrs);
+ if (label->effective_attrs)
+ pango_attr_list_unref (label->effective_attrs);
+ label->effective_attrs = attrs;
+ }
+
+ label->attrs = attrs;
+ g_object_notify (G_OBJECT (label), "attributes");
+}
+
+
+/* Calculates text, attrs and mnemonic_keyval from
+ * label, use_underline and use_markup
+ */
+static void
+ephy_label_recalculate (EphyLabel *label)
+{
+ if (label->use_markup)
+ set_markup (label, label->label, label->use_underline);
+ else
+ {
+ if (label->use_underline)
+ ephy_label_set_uline_text_internal (label, label->label);
+ else
+ {
+ ephy_label_set_text_internal (label, g_strdup (label->label));
+ if (label->attrs)
+ pango_attr_list_ref (label->attrs);
+ if (label->effective_attrs)
+ pango_attr_list_unref (label->effective_attrs);
+ label->effective_attrs = label->attrs;
+ }
+ }
+
+ if (!label->use_underline)
+ {
+ guint keyval = label->mnemonic_keyval;
+
+ label->mnemonic_keyval = GDK_VoidSymbol;
+ ephy_label_setup_mnemonic (label, keyval);
+ }
+
+ ephy_label_clear_layout (label);
+ gtk_widget_queue_resize (GTK_WIDGET (label));
+}
+
+/**
+ * ephy_label_set_text:
+ * @label: a #EphyLabel
+ * @str: The text you want to set.
+ *
+ * Sets the text within the #EphyLabel widget. It overwrites any text that
+ * was there before.
+ *
+ * This will also clear any previously set mnemonic accelerators.
+ **/
+void
+ephy_label_set_text (EphyLabel *label,
+ const gchar *str)
+{
+ g_return_if_fail (EPHY_IS_LABEL (label));
+
+ g_object_freeze_notify (G_OBJECT (label));
+
+ ephy_label_set_label_internal (label, g_strdup (str ? str : ""));
+ ephy_label_set_use_markup_internal (label, FALSE);
+ ephy_label_set_use_underline_internal (label, FALSE);
+
+ ephy_label_recalculate (label);
+
+ g_object_thaw_notify (G_OBJECT (label));
+}
+
+/**
+ * ephy_label_set_attributes:
+ * @label: a #EphyLabel
+ * @attrs: a #PangoAttrList
+ *
+ * Sets a #PangoAttrList; the attributes in the list are applied to the
+ * label text. The attributes set with this function will be ignored
+ * if the "use_underline" property or the "use_markup" property
+ * is %TRUE.
+ **/
+void
+ephy_label_set_attributes (EphyLabel *label,
+ PangoAttrList *attrs)
+{
+ g_return_if_fail (EPHY_IS_LABEL (label));
+
+ ephy_label_set_attributes_internal (label, attrs);
+
+ ephy_label_clear_layout (label);
+ gtk_widget_queue_resize (GTK_WIDGET (label));
+}
+
+/**
+ * ephy_label_get_attributes:
+ * @label: a #EphyLabel
+ *
+ * Gets the attribute list that was set on the label using
+ * ephy_label_set_attributes(), if any. This function does
+ * not reflect attributes that come from the labels markup
+ * (see ephy_label_set_markup()). If you want to get the
+ * effective attributes for the label, use
+ * pango_layout_get_attribute (ephy_label_get_layout (label)).
+ *
+ * Return value: the attribute list, or %NULL if none was set.
+ **/
+PangoAttrList *
+ephy_label_get_attributes (EphyLabel *label)
+{
+ g_return_val_if_fail (EPHY_IS_LABEL (label), NULL);
+
+ return label->attrs;
+}
+
+/**
+ * ephy_label_set_label:
+ * @label: a #EphyLabel
+ * @str: the new text to set for the label
+ *
+ * Sets the text of the label. The label is interpreted as
+ * including embedded underlines and/or Pango markup depending
+ * on the values of label->use_underline and label->use_markup.
+ **/
+void
+ephy_label_set_label (EphyLabel *label,
+ const gchar *str)
+{
+ guint last_keyval;
+
+ g_return_if_fail (EPHY_IS_LABEL (label));
+ g_return_if_fail (str != NULL);
+
+ last_keyval = label->mnemonic_keyval;
+
+ ephy_label_set_label_internal (label, g_strdup (str));
+ ephy_label_recalculate (label);
+ if (last_keyval != label->mnemonic_keyval)
+ ephy_label_setup_mnemonic (label, last_keyval);
+}
+
+/**
+ * ephy_label_get_label:
+ * @label: a #EphyLabel
+ *
+ * Fetches the text from a label widget including any embedded
+ * underlines indicating mnemonics and Pango markup. (See
+ * ephy_label_get_text ()).
+ *
+ * Return value: the text of the label widget. This string is
+ * owned by the widget and must not be modified or freed.
+ **/
+G_CONST_RETURN gchar *
+ephy_label_get_label (EphyLabel *label)
+{
+ g_return_val_if_fail (EPHY_IS_LABEL (label), NULL);
+
+ return label->label;
+}
+
+static void
+set_markup (EphyLabel *label,
+ const gchar *str,
+ gboolean with_uline)
+{
+ gchar *text = NULL;
+ GError *error = NULL;
+ PangoAttrList *attrs = NULL;
+ gunichar accel_char = 0;
+
+ if (!pango_parse_markup (str,
+ -1,
+ with_uline ? '_' : 0,
+ &attrs,
+ &text,
+ with_uline ? &accel_char : NULL,
+ &error))
+ {
+ g_warning ("Failed to set label from markup due to error parsing markup: %s",
+ error->message);
+ g_error_free (error);
+ return;
+ }
+
+ if (text)
+ ephy_label_set_text_internal (label, text);
+
+ if (attrs)
+ {
+ if (label->effective_attrs)
+ pango_attr_list_unref (label->effective_attrs);
+ label->effective_attrs = attrs;
+ }
+
+ if (accel_char != 0)
+ label->mnemonic_keyval = gdk_keyval_to_lower (gdk_unicode_to_keyval (accel_char));
+ else
+ label->mnemonic_keyval = GDK_VoidSymbol;
+}
+
+/**
+ * ephy_label_set_markup:
+ * @label: a #EphyLabel
+ * @str: a markup string (see <link linkend="PangoMarkupFormat">Pango markup format</link>)
+ *
+ * Parses @str which is marked up with the <link linkend="PangoMarkupFormat">Pango text markup language</link>,
+ * setting the label's text and attribute list based on the parse results.
+ **/
+void
+ephy_label_set_markup (EphyLabel *label,
+ const gchar *str)
+{
+ g_return_if_fail (EPHY_IS_LABEL (label));
+
+ ephy_label_set_label_internal (label, g_strdup (str ? str : ""));
+ ephy_label_set_use_markup_internal (label, TRUE);
+ ephy_label_set_use_underline_internal (label, FALSE);
+
+ ephy_label_recalculate (label);
+}
+
+/**
+ * ephy_label_set_markup_with_mnemonic:
+ * @label: a #EphyLabel
+ * @str: a markup string (see <link linkend="PangoMarkupFormat">Pango markup format</link>)
+ *
+ * Parses @str which is marked up with the <link linkend="PangoMarkupFormat">Pango text markup language</link>,
+ * setting the label's text and attribute list based on the parse results.
+ * If characters in @str are preceded by an underscore, they are underlined
+ * indicating that they represent a keyboard accelerator called a mnemonic.
+ *
+ * The mnemonic key can be used to activate another widget, chosen automatically,
+ * or explicitly using ephy_label_set_mnemonic_widget().
+ **/
+void
+ephy_label_set_markup_with_mnemonic (EphyLabel *label,
+ const gchar *str)
+{
+ guint last_keyval;
+ g_return_if_fail (EPHY_IS_LABEL (label));
+
+ last_keyval = label->mnemonic_keyval;
+ ephy_label_set_label_internal (label, g_strdup (str ? str : ""));
+ ephy_label_set_use_markup_internal (label, TRUE);
+ ephy_label_set_use_underline_internal (label, TRUE);
+
+ ephy_label_recalculate (label);
+ ephy_label_setup_mnemonic (label, last_keyval);
+}
+
+/**
+ * ephy_label_get_text:
+ * @label: a #EphyLabel
+ *
+ * Fetches the text from a label widget, as displayed on the
+ * screen. This does not include any embedded underlines
+ * indicating mnemonics or Pango markup. (See ephy_label_get_label())
+ *
+ * Return value: the text in the label widget. This is the internal
+ * string used by the label, and must not be modified.
+ **/
+G_CONST_RETURN gchar *
+ephy_label_get_text (EphyLabel *label)
+{
+ g_return_val_if_fail (EPHY_IS_LABEL (label), NULL);
+
+ return label->text;
+}
+
+static PangoAttrList *
+ephy_label_pattern_to_attrs (EphyLabel *label,
+ const gchar *pattern)
+{
+ const char *start;
+ const char *p = label->text;
+ const char *q = pattern;
+ PangoAttrList *attrs;
+
+ attrs = pango_attr_list_new ();
+
+ while (1)
+ {
+ while (*p && *q && *q != '_')
+ {
+ p = g_utf8_next_char (p);
+ q++;
+ }
+ start = p;
+ while (*p && *q && *q == '_')
+ {
+ p = g_utf8_next_char (p);
+ q++;
+ }
+
+ if (p > start)
+ {
+ PangoAttribute *attr = pango_attr_underline_new (PANGO_UNDERLINE_LOW);
+ attr->start_index = start - label->text;
+ attr->end_index = p - label->text;
+
+ pango_attr_list_insert (attrs, attr);
+ }
+ else
+ break;
+ }
+
+ return attrs;
+}
+
+static void
+ephy_label_set_pattern_internal (EphyLabel *label,
+ const gchar *pattern)
+{
+ PangoAttrList *attrs;
+ g_return_if_fail (EPHY_IS_LABEL (label));
+
+ attrs = ephy_label_pattern_to_attrs (label, pattern);
+
+ if (label->effective_attrs)
+ pango_attr_list_unref (label->effective_attrs);
+ label->effective_attrs = attrs;
+}
+
+void
+ephy_label_set_pattern (EphyLabel *label,
+ const gchar *pattern)
+{
+ g_return_if_fail (EPHY_IS_LABEL (label));
+
+ ephy_label_set_pattern_internal (label, pattern);
+
+ ephy_label_clear_layout (label);
+ gtk_widget_queue_resize (GTK_WIDGET (label));
+}
+
+
+/**
+ * ephy_label_set_justify:
+ * @label: a #EphyLabel
+ * @jtype: a #GtkJustification
+ *
+ * Sets the alignment of the lines in the text of the label relative to
+ * each other. %GTK_JUSTIFY_LEFT is the default value when the
+ * widget is first created with ephy_label_new(). If you instead want
+ * to set the alignment of the label as a whole, use
+ * gtk_misc_set_alignment() instead. ephy_label_set_justify() has no
+ * effect on labels containing only a single line.
+ **/
+void
+ephy_label_set_justify (EphyLabel *label,
+ GtkJustification jtype)
+{
+ g_return_if_fail (EPHY_IS_LABEL (label));
+ g_return_if_fail (jtype >= GTK_JUSTIFY_LEFT && jtype <= GTK_JUSTIFY_FILL);
+
+ if ((GtkJustification) label->jtype != jtype)
+ {
+ label->jtype = jtype;
+
+ /* No real need to be this drastic, but easier than duplicating the code */
+ ephy_label_clear_layout (label);
+
+ g_object_notify (G_OBJECT (label), "justify");
+ gtk_widget_queue_resize (GTK_WIDGET (label));
+ }
+}
+
+/**
+ * ephy_label_get_justify:
+ * @label: a #EphyLabel
+ *
+ * Returns the justification of the label. See ephy_label_set_justify ().
+ *
+ * Return value: #GtkJustification
+ **/
+GtkJustification
+ephy_label_get_justify (EphyLabel *label)
+{
+ g_return_val_if_fail (EPHY_IS_LABEL (label), 0);
+
+ return label->jtype;
+}
+
+
+/**
+ * ephy_label_set_ellipsize:
+ * @label: a #EphyLabel
+ * @mode: a #PangoEllipsizeMode
+ *
+ * Sets the mode used to ellipsize (add an ellipsis: "...") to the text if there
+ * is not enough space to render the entire string.
+ *
+ * Since: 2.6
+ **/
+void
+ephy_label_set_ellipsize (EphyLabel *label,
+ PangoEllipsizeMode mode)
+{
+ g_return_if_fail (EPHY_IS_LABEL (label));
+ g_return_if_fail (mode >= PANGO_ELLIPSIZE_NONE && mode <= PANGO_ELLIPSIZE_END);
+
+ if ((PangoEllipsizeMode) label->ellipsize != mode)
+ {
+ label->ellipsize = mode;
+
+ /* No real need to be this drastic, but easier than duplicating the code */
+ ephy_label_clear_layout (label);
+
+ g_object_notify (G_OBJECT (label), "ellipsize");
+ gtk_widget_queue_resize (GTK_WIDGET (label));
+ }
+}
+
+/**
+ * ephy_label_get_ellipsize:
+ * @label: a #EphyLabel
+ *
+ * Returns the ellipsizing position of the label. See ephy_label_set_ellipsize().
+ *
+ * Return value: #PangoEllipsizeMode
+ *
+ * Since: 2.6
+ **/
+PangoEllipsizeMode
+ephy_label_get_ellipsize (EphyLabel *label)
+{
+ g_return_val_if_fail (EPHY_IS_LABEL (label), PANGO_ELLIPSIZE_NONE);
+
+ return label->ellipsize;
+}
+
+/**
+ * ephy_label_set_line_wrap:
+ * @label: a #EphyLabel
+ * @wrap: the setting
+ *
+ * Toggles line wrapping within the #EphyLabel widget. %TRUE makes it break
+ * lines if text exceeds the widget's size. %FALSE lets the text get cut off
+ * by the edge of the widget if it exceeds the widget size.
+ **/
+void
+ephy_label_set_line_wrap (EphyLabel *label,
+ gboolean wrap)
+{
+ g_return_if_fail (EPHY_IS_LABEL (label));
+
+ wrap = wrap != FALSE;
+
+ if (label->wrap != wrap)
+ {
+ label->wrap = wrap;
+ g_object_notify (G_OBJECT (label), "wrap");
+
+ gtk_widget_queue_resize (GTK_WIDGET (label));
+ }
+}
+
+/**
+ * ephy_label_get_line_wrap:
+ * @label: a #EphyLabel
+ *
+ * Returns whether lines in the label are automatically wrapped. See ephy_label_set_line_wrap ().
+ *
+ * Return value: %TRUE if the lines of the label are automatically wrapped.
+ */
+gboolean
+ephy_label_get_line_wrap (EphyLabel *label)
+{
+ g_return_val_if_fail (EPHY_IS_LABEL (label), FALSE);
+
+ return label->wrap;
+}
+
+void
+ephy_label_get (EphyLabel *label,
+ gchar **str)
+{
+ g_return_if_fail (EPHY_IS_LABEL (label));
+ g_return_if_fail (str != NULL);
+
+ *str = label->text;
+}
+
+static void
+ephy_label_destroy (GtkObject *object)
+{
+ EphyLabel *label = EPHY_LABEL (object);
+
+ ephy_label_set_mnemonic_widget (label, NULL);
+
+ GTK_OBJECT_CLASS (parent_class)->destroy (object);
+}
+
+static void
+ephy_label_finalize (GObject *object)
+{
+ EphyLabel *label;
+
+ g_return_if_fail (EPHY_IS_LABEL (object));
+
+ label = EPHY_LABEL (object);
+
+ g_free (label->label);
+ g_free (label->text);
+
+ if (label->layout)
+ g_object_unref (label->layout);
+
+ if (label->attrs)
+ pango_attr_list_unref (label->attrs);
+
+ if (label->effective_attrs)
+ pango_attr_list_unref (label->effective_attrs);
+
+ g_free (label->select_info);
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+ephy_label_clear_layout (EphyLabel *label)
+{
+ if (label->layout)
+ {
+ g_object_unref (label->layout);
+ label->layout = NULL;
+ }
+}
+
+typedef struct _LabelWrapWidth LabelWrapWidth;
+struct _LabelWrapWidth
+{
+ gint width;
+ PangoFontDescription *font_desc;
+};
+
+static void
+label_wrap_width_free (gpointer data)
+{
+ LabelWrapWidth *wrap_width = data;
+ pango_font_description_free (wrap_width->font_desc);
+ g_free (wrap_width);
+}
+
+static gint
+get_label_wrap_width (EphyLabel *label)
+{
+ PangoLayout *layout;
+ GtkStyle *style = GTK_WIDGET (label)->style;
+
+ LabelWrapWidth *wrap_width = g_object_get_data (G_OBJECT (style), "gtk-label-wrap-width");
+ if (!wrap_width)
+ {
+ wrap_width = g_new0 (LabelWrapWidth, 1);
+ g_object_set_data_full (G_OBJECT (style), "gtk-label-wrap-width",
+ wrap_width, label_wrap_width_free);
+ }
+
+ if (wrap_width->font_desc && pango_font_description_equal (wrap_width->font_desc, style->font_desc))
+ return wrap_width->width;
+
+ if (wrap_width->font_desc)
+ pango_font_description_free (wrap_width->font_desc);
+
+ wrap_width->font_desc = pango_font_description_copy (style->font_desc);
+
+ layout = gtk_widget_create_pango_layout (GTK_WIDGET (label),
+ "This long string gives a good enough length for any line to have.");
+ pango_layout_get_size (layout, &wrap_width->width, NULL);
+ g_object_unref (layout);
+
+ return wrap_width->width;
+}
+
+static void
+ephy_label_ensure_layout (EphyLabel *label)
+{
+ GtkWidget *widget;
+ PangoRectangle logical_rect;
+ gint rwidth, rheight;
+ gboolean rtl;
+
+ widget = GTK_WIDGET (label);
+
+ rtl = gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL;
+ rwidth = label->misc.xpad * 2;
+ rheight = label->misc.ypad * 2;
+
+ if (!label->layout)
+ {
+ PangoAlignment align = PANGO_ALIGN_LEFT; /* Quiet gcc */
+
+ label->layout = gtk_widget_create_pango_layout (widget, label->text);
+
+ if (label->effective_attrs)
+ pango_layout_set_attributes (label->layout, label->effective_attrs);
+
+ switch (label->jtype)
+ {
+ case GTK_JUSTIFY_LEFT:
+ align = rtl ? PANGO_ALIGN_RIGHT : PANGO_ALIGN_LEFT;
+ break;
+ case GTK_JUSTIFY_RIGHT:
+ align = rtl ? PANGO_ALIGN_LEFT : PANGO_ALIGN_RIGHT;
+ break;
+ case GTK_JUSTIFY_CENTER:
+ align = PANGO_ALIGN_CENTER;
+ break;
+ case GTK_JUSTIFY_FILL:
+ /* FIXME: This just doesn't work to do this */
+ align = rtl ? PANGO_ALIGN_RIGHT : PANGO_ALIGN_LEFT;
+ pango_layout_set_justify (label->layout, TRUE);
+ break;
+ default:
+ g_assert_not_reached();
+ }
+
+ pango_layout_set_alignment (label->layout, align);
+ pango_layout_set_ellipsize (label->layout, label->ellipsize);
+
+ if (label->wrap)
+ {
+ GtkWidgetAuxInfo *aux_info;
+ gint longest_paragraph;
+ gint width, height;
+
+ aux_info = NULL; /* EPHY HACK */
+ if (aux_info && aux_info->width > 0)
+ pango_layout_set_width (label->layout, aux_info->width * PANGO_SCALE);
+ else
+ {
+ GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (label));
+ gint wrap_width;
+
+ pango_layout_set_width (label->layout, -1);
+ pango_layout_get_extents (label->layout, NULL, &logical_rect);
+
+ width = logical_rect.width;
+
+ /* Try to guess a reasonable maximum width */
+ longest_paragraph = width;
+
+ wrap_width = get_label_wrap_width (label);
+ width = MIN (width, wrap_width);
+ width = MIN (width,
+ PANGO_SCALE * (gdk_screen_get_width (screen) + 1) / 2);
+
+ pango_layout_set_width (label->layout, width);
+ pango_layout_get_extents (label->layout, NULL, &logical_rect);
+ width = logical_rect.width;
+ height = logical_rect.height;
+
+ /* Unfortunately, the above may leave us with a very unbalanced looking paragraph,
+ * so we try short search for a narrower width that leaves us with the same height
+ */
+ if (longest_paragraph > 0)
+ {
+ gint nlines, perfect_width;
+
+ nlines = pango_layout_get_line_count (label->layout);
+ perfect_width = (longest_paragraph + nlines - 1) / nlines;
+
+ if (perfect_width < width)
+ {
+ pango_layout_set_width (label->layout, perfect_width);
+ pango_layout_get_extents (label->layout, NULL, &logical_rect);
+
+ if (logical_rect.height <= height)
+ width = logical_rect.width;
+ else
+ {
+ gint mid_width = (perfect_width + width) / 2;
+
+ if (mid_width > perfect_width)
+ {
+ pango_layout_set_width (label->layout, mid_width);
+ pango_layout_get_extents (label->layout, NULL, &logical_rect);
+
+ if (logical_rect.height <= height)
+ width = logical_rect.width;
+ }
+ }
+ }
+ }
+ pango_layout_set_width (label->layout, width);
+ }
+ }
+ else /* !label->wrap */
+ pango_layout_set_width (label->layout, -1);
+ }
+}
+
+static void
+ephy_label_size_request (GtkWidget *widget,
+ GtkRequisition *requisition)
+{
+ EphyLabel *label;
+ gint width, height;
+ PangoRectangle logical_rect;
+ GtkWidgetAuxInfo *aux_info;
+
+ g_return_if_fail (EPHY_IS_LABEL (widget));
+ g_return_if_fail (requisition != NULL);
+
+ label = EPHY_LABEL (widget);
+
+ /*
+ * If word wrapping is on, then the height requisition can depend
+ * on:
+ *
+ * - Any width set on the widget via gtk_widget_set_usize().
+ * - The padding of the widget (xpad, set by gtk_misc_set_padding)
+ *
+ * Instead of trying to detect changes to these quantities, if we
+ * are wrapping, we just rewrap for each size request. Since
+ * size requisitions are cached by the GTK+ core, this is not
+ * expensive.
+ */
+
+ if (label->wrap)
+ ephy_label_clear_layout (label);
+
+ ephy_label_ensure_layout (label);
+
+ width = label->misc.xpad * 2;
+ height = label->misc.ypad * 2;
+
+ pango_layout_get_extents (label->layout, NULL, &logical_rect);
+ aux_info = NULL; /* EPHY HACK */
+
+ if (label->ellipsize)
+ {
+ PangoContext *context;
+ PangoFontMetrics *metrics;
+ gint char_width;
+
+ /* The minimum size for ellipsized labels is ~ 3 chars */
+ context = pango_layout_get_context (label->layout);
+ metrics = pango_context_get_metrics (context, widget->style->font_desc, NULL);
+
+ char_width = pango_font_metrics_get_approximate_char_width (metrics);
+ pango_font_metrics_unref (metrics);
+
+ width += (PANGO_PIXELS (char_width) * 3);
+ }
+ else
+ {
+ if (label->wrap && aux_info && aux_info->width > 0)
+ width += aux_info->width;
+ else
+ width += PANGO_PIXELS (logical_rect.width);
+ }
+
+ height += PANGO_PIXELS (logical_rect.height);
+
+ requisition->width = width;
+ requisition->height = height;
+}
+
+static void
+ephy_label_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation)
+{
+ EphyLabel *label;
+
+ label = EPHY_LABEL (widget);
+
+ (* GTK_WIDGET_CLASS (parent_class)->size_allocate) (widget, allocation);
+
+ if (label->ellipsize)
+ pango_layout_set_width (label->layout, allocation->width * PANGO_SCALE);
+
+ if (label->select_info && label->select_info->window)
+ {
+ gdk_window_move_resize (label->select_info->window,
+ allocation->x,
+ allocation->y,
+ allocation->width,
+ allocation->height);
+ }
+}
+
+static void
+ephy_label_state_changed (GtkWidget *widget,
+ GtkStateType prev_state)
+{
+ EphyLabel *label;
+
+ label = EPHY_LABEL (widget);
+
+ if (label->select_info)
+ ephy_label_select_region (label, 0, 0);
+
+ if (GTK_WIDGET_CLASS (parent_class)->state_changed)
+ GTK_WIDGET_CLASS (parent_class)->state_changed (widget, prev_state);
+}
+
+static void
+ephy_label_style_set (GtkWidget *widget,
+ GtkStyle *previous_style)
+{
+ EphyLabel *label;
+
+ g_return_if_fail (EPHY_IS_LABEL (widget));
+
+ label = EPHY_LABEL (widget);
+
+ /* We have to clear the layout, fonts etc. may have changed */
+ ephy_label_clear_layout (label);
+}
+
+static void
+ephy_label_direction_changed (GtkWidget *widget,
+ GtkTextDirection previous_dir)
+{
+ EphyLabel *label = EPHY_LABEL (widget);
+
+ if (label->layout)
+ pango_layout_context_changed (label->layout);
+
+ GTK_WIDGET_CLASS (parent_class)->direction_changed (widget, previous_dir);
+}
+
+#if 0
+static void
+ephy_label_paint_word (EphyLabel *label,
+ gint x,
+ gint y,
+ EphyLabelWord *word,
+ GdkRectangle *area)
+{
+ GtkWidget *widget = GTK_WIDGET (label);
+ EphyLabelULine *uline;
+ gchar *tmp_str;
+
+ tmp_str = gdk_wcstombs (word->beginning);
+ if (tmp_str)
+ {
+ gtk_paint_string (widget->style, widget->window, widget->state,
+ area, widget, "label",
+ x + word->x,
+ y + word->y,
+ tmp_str);
+ g_free (tmp_str);
+ }
+
+ for (uline = word->uline; uline; uline = uline->next)
+ gtk_paint_hline (widget->style, widget->window,
+ widget->state, area,
+ widget, "label",
+ x + uline->x1, x + uline->x2, y + uline->y);
+}
+#endif
+
+static void
+get_layout_location (EphyLabel *label,
+ gint *xp,
+ gint *yp)
+{
+ GtkMisc *misc;
+ GtkWidget *widget;
+ gfloat xalign;
+ gint req_width, x, y;
+
+ misc = GTK_MISC (label);
+ widget = GTK_WIDGET (label);
+
+ if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
+ xalign = misc->xalign;
+ else
+ xalign = 1.0 - misc->xalign;
+
+ if (label->ellipsize)
+ {
+ PangoRectangle ink_rect;
+
+ pango_layout_get_extents (label->layout, &ink_rect, NULL);
+
+ req_width = PANGO_PIXELS (ink_rect.width);
+ }
+ else
+ req_width = widget->requisition.width;
+
+ x = floor (widget->allocation.x + (gint)misc->xpad +
+ xalign * (widget->allocation.width - req_width)
+ + 0.5);
+
+ if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
+ x = MAX (x, widget->allocation.x + misc->xpad);
+ else
+ x = MIN (x,
+ widget->allocation.x + widget->allocation.width -
+ req_width - misc->xpad);
+
+ y = floor (widget->allocation.y + (gint)misc->ypad
+ + MAX (((widget->allocation.height - widget->requisition.height) * misc->yalign)
+ + 0.5, 0));
+
+ if (xp)
+ *xp = x;
+
+ if (yp)
+ *yp = y;
+}
+
+static void
+draw_insertion_cursor (EphyLabel *label,
+ GdkRectangle *cursor_location,
+ gboolean is_primary,
+ PangoDirection direction,
+ gboolean draw_arrow)
+{
+ GtkWidget *widget = GTK_WIDGET (label);
+ GtkTextDirection text_dir;
+
+ if (direction == PANGO_DIRECTION_LTR)
+ text_dir = GTK_TEXT_DIR_LTR;
+ else
+ text_dir = GTK_TEXT_DIR_RTL;
+
+ gtk_draw_insertion_cursor (widget, widget->window, NULL,
+ cursor_location,
+ is_primary, text_dir, draw_arrow);
+}
+
+static PangoDirection
+get_cursor_direction (EphyLabel *label)
+{
+ GSList *l;
+
+ g_assert (label->select_info);
+
+ ephy_label_ensure_layout (label);
+
+ for (l = pango_layout_get_lines (label->layout); l; l = l->next)
+ {
+ PangoLayoutLine *line = l->data;
+
+ /* If label->select_info->selection_end is at the very end of
+ * the line, we don't know if the cursor is on this line or
+ * the next without looking ahead at the next line. (End
+ * of paragraph is different from line break.) But it's
+ * definitely in this paragraph, which is good enough
+ * to figure out the resolved direction.
+ */
+ if (line->start_index + line->length >= label->select_info->selection_end)
+ return line->resolved_dir;
+ }
+
+ return PANGO_DIRECTION_LTR;
+}
+
+static void
+ephy_label_draw_cursor (EphyLabel *label, gint xoffset, gint yoffset)
+{
+ if (label->select_info == NULL)
+ return;
+
+ if (GTK_WIDGET_DRAWABLE (label))
+ {
+ GtkWidget *widget = GTK_WIDGET (label);
+
+ PangoDirection keymap_direction;
+ PangoDirection cursor_direction;
+ PangoRectangle strong_pos, weak_pos;
+ gboolean split_cursor;
+ PangoRectangle *cursor1 = NULL;
+ PangoRectangle *cursor2 = NULL;
+ GdkRectangle cursor_location;
+ PangoDirection dir1 = PANGO_DIRECTION_NEUTRAL;
+ PangoDirection dir2 = PANGO_DIRECTION_NEUTRAL;
+
+ keymap_direction = gdk_keymap_get_direction (gdk_keymap_get_for_display (gtk_widget_get_display (widget)));
+ cursor_direction = get_cursor_direction (label);
+
+ ephy_label_ensure_layout (label);
+
+ pango_layout_get_cursor_pos (label->layout, label->select_info->selection_end,
+ &strong_pos, &weak_pos);
+
+ g_object_get (gtk_widget_get_settings (widget),
+ "gtk-split-cursor", &split_cursor,
+ NULL);
+
+ dir1 = cursor_direction;
+
+ if (split_cursor)
+ {
+ cursor1 = &strong_pos;
+
+ if (strong_pos.x != weak_pos.x ||
+ strong_pos.y != weak_pos.y)
+ {
+ dir2 = (cursor_direction == PANGO_DIRECTION_LTR) ? PANGO_DIRECTION_RTL : PANGO_DIRECTION_LTR;
+ cursor2 = &weak_pos;
+ }
+ }
+ else
+ {
+ if (keymap_direction == cursor_direction)
+ cursor1 = &strong_pos;
+ else
+ cursor1 = &weak_pos;
+ }
+
+ cursor_location.x = xoffset + PANGO_PIXELS (cursor1->x);
+ cursor_location.y = yoffset + PANGO_PIXELS (cursor1->y);
+ cursor_location.width = 0;
+ cursor_location.height = PANGO_PIXELS (cursor1->height);
+
+ draw_insertion_cursor (label,
+ &cursor_location, TRUE, dir1,
+ dir2 != PANGO_DIRECTION_NEUTRAL);
+
+ if (dir2 != PANGO_DIRECTION_NEUTRAL)
+ {
+ cursor_location.x = xoffset + PANGO_PIXELS (cursor2->x);
+ cursor_location.y = yoffset + PANGO_PIXELS (cursor2->y);
+ cursor_location.width = 0;
+ cursor_location.height = PANGO_PIXELS (cursor2->height);
+
+ draw_insertion_cursor (label,
+ &cursor_location, FALSE, dir2,
+ TRUE);
+ }
+ }
+}
+
+
+static gint
+ephy_label_expose (GtkWidget *widget,
+ GdkEventExpose *event)
+{
+ EphyLabel *label;
+ gint x, y;
+
+ g_return_val_if_fail (EPHY_IS_LABEL (widget), FALSE);
+ g_return_val_if_fail (event != NULL, FALSE);
+
+ label = EPHY_LABEL (widget);
+
+ ephy_label_ensure_layout (label);
+
+ if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_MAPPED (widget) &&
+ label->text && (*label->text != '\0'))
+ {
+ get_layout_location (label, &x, &y);
+
+ gtk_paint_layout (widget->style,
+ widget->window,
+ GTK_WIDGET_STATE (widget),
+ FALSE,
+ &event->area,
+ widget,
+ "label",
+ x, y,
+ label->layout);
+
+ if (label->select_info &&
+ (label->select_info->selection_anchor !=
+ label->select_info->selection_end))
+ {
+ gint range[2];
+ GdkRegion *clip;
+ GtkStateType state;
+
+ range[0] = label->select_info->selection_anchor;
+ range[1] = label->select_info->selection_end;
+
+ if (range[0] > range[1])
+ {
+ gint tmp = range[0];
+ range[0] = range[1];
+ range[1] = tmp;
+ }
+
+ clip = gdk_pango_layout_get_clip_region (label->layout,
+ x, y,
+ range,
+ 1);
+
+ /* FIXME should use gtk_paint, but it can't use a clip
+ * region
+ */
+
+ gdk_gc_set_clip_region (widget->style->black_gc, clip);
+
+
+ state = GTK_STATE_SELECTED;
+ if (!GTK_WIDGET_HAS_FOCUS (widget))
+ state = GTK_STATE_ACTIVE;
+
+ gdk_draw_layout_with_colors (widget->window,
+ widget->style->black_gc,
+ x, y,
+ label->layout,
+ &widget->style->text[state],
+ &widget->style->base[state]);
+
+ gdk_gc_set_clip_region (widget->style->black_gc, NULL);
+ gdk_region_destroy (clip);
+ }
+ else if (label->select_info && GTK_WIDGET_HAS_FOCUS (widget))
+ ephy_label_draw_cursor (label, x, y);
+ }
+
+ return FALSE;
+}
+
+static void
+ephy_label_set_uline_text_internal (EphyLabel *label,
+ const gchar *str)
+{
+ guint accel_key = GDK_VoidSymbol;
+
+ gchar *new_str;
+ gchar *pattern;
+ const gchar *src;
+ gchar *dest, *pattern_dest;
+ gboolean underscore;
+
+ g_return_if_fail (EPHY_IS_LABEL (label));
+ g_return_if_fail (str != NULL);
+
+ /* Split text into the base text and a separate pattern
+ * of underscores.
+ */
+
+ new_str = g_new (gchar, strlen (str) + 1);
+ pattern = g_new (gchar, g_utf8_strlen (str, -1) + 1);
+
+ underscore = FALSE;
+
+ if (str == NULL)
+ str = "";
+
+ src = str;
+ dest = new_str;
+ pattern_dest = pattern;
+
+ while (*src)
+ {
+ gunichar c;
+ gchar *next_src;
+
+ c = g_utf8_get_char (src);
+ if (c == (gunichar)-1)
+ {
+ g_warning ("Invalid input string");
+ g_free (new_str);
+ g_free (pattern);
+ return;
+ }
+ next_src = g_utf8_next_char (src);
+
+ if (underscore)
+ {
+ if (c == '_')
+ *pattern_dest++ = ' ';
+ else
+ {
+ *pattern_dest++ = '_';
+ if (accel_key == GDK_VoidSymbol)
+ accel_key = gdk_keyval_to_lower (gdk_unicode_to_keyval (c));
+ }
+
+ while (src < next_src)
+ *dest++ = *src++;
+
+ underscore = FALSE;
+ }
+ else
+ {
+ if (c == '_')
+ {
+ underscore = TRUE;
+ src = next_src;
+ }
+ else
+ {
+ while (src < next_src)
+ *dest++ = *src++;
+
+ *pattern_dest++ = ' ';
+ }
+ }
+ }
+ *dest = 0;
+ *pattern_dest = 0;
+
+ ephy_label_set_text_internal (label, new_str);
+ ephy_label_set_pattern_internal (label, pattern);
+
+ g_free (pattern);
+
+ label->mnemonic_keyval = accel_key;
+}
+
+guint
+ephy_label_parse_uline (EphyLabel *label,
+ const gchar *str)
+{
+ guint keyval;
+ guint orig_keyval;
+
+ g_return_val_if_fail (EPHY_IS_LABEL (label), GDK_VoidSymbol);
+ g_return_val_if_fail (str != NULL, GDK_VoidSymbol);
+
+ orig_keyval = label->mnemonic_keyval;
+
+ g_object_freeze_notify (G_OBJECT (label));
+
+ ephy_label_set_label_internal (label, g_strdup (str ? str : ""));
+ ephy_label_set_use_markup_internal (label, FALSE);
+ ephy_label_set_use_underline_internal (label, TRUE);
+
+ ephy_label_recalculate (label);
+
+ keyval = label->mnemonic_keyval;
+ label->mnemonic_keyval = GDK_VoidSymbol;
+
+ ephy_label_setup_mnemonic (label, orig_keyval);
+
+ g_object_thaw_notify (G_OBJECT (label));
+
+ return keyval;
+}
+
+/**
+ * ephy_label_set_text_with_mnemonic:
+ * @label: a #EphyLabel
+ * @str: a string
+ *
+ * Sets the label's text from the string @str.
+ * If characters in @str are preceded by an underscore, they are underlined
+ * indicating that they represent a keyboard accelerator called a mnemonic.
+ * The mnemonic key can be used to activate another widget, chosen automatically,
+ * or explicitly using ephy_label_set_mnemonic_widget().
+ **/
+void
+ephy_label_set_text_with_mnemonic (EphyLabel *label,
+ const gchar *str)
+{
+ guint last_keyval;
+
+ g_return_if_fail (EPHY_IS_LABEL (label));
+ g_return_if_fail (str != NULL);
+
+ last_keyval = label->mnemonic_keyval;
+
+ g_object_freeze_notify (G_OBJECT (label));
+
+ ephy_label_set_label_internal (label, g_strdup (str ? str : ""));
+ ephy_label_set_use_markup_internal (label, FALSE);
+ ephy_label_set_use_underline_internal (label, TRUE);
+
+ ephy_label_recalculate (label);
+
+ ephy_label_setup_mnemonic (label, last_keyval);
+
+ g_object_thaw_notify (G_OBJECT (label));
+}
+
+static void
+ephy_label_realize (GtkWidget *widget)
+{
+ EphyLabel *label;
+
+ label = EPHY_LABEL (widget);
+
+ (* GTK_WIDGET_CLASS (parent_class)->realize) (widget);
+
+ if (label->select_info)
+ ephy_label_create_window (label);
+}
+
+static void
+ephy_label_unrealize (GtkWidget *widget)
+{
+ EphyLabel *label;
+
+ label = EPHY_LABEL (widget);
+
+ if (label->select_info)
+ ephy_label_destroy_window (label);
+
+ (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
+}
+
+static void
+ephy_label_map (GtkWidget *widget)
+{
+ EphyLabel *label;
+
+ label = EPHY_LABEL (widget);
+
+ (* GTK_WIDGET_CLASS (parent_class)->map) (widget);
+
+ if (label->select_info)
+ gdk_window_show (label->select_info->window);
+}
+
+static void
+ephy_label_unmap (GtkWidget *widget)
+{
+ EphyLabel *label;
+
+ label = EPHY_LABEL (widget);
+
+ if (label->select_info)
+ gdk_window_hide (label->select_info->window);
+
+ (* GTK_WIDGET_CLASS (parent_class)->unmap) (widget);
+}
+
+static void
+window_to_layout_coords (EphyLabel *label,
+ gint *x,
+ gint *y)
+{
+ gint lx, ly;
+ GtkWidget *widget;
+
+ widget = GTK_WIDGET (label);
+
+ /* get layout location in widget->window coords */
+ get_layout_location (label, &lx, &ly);
+
+ if (x)
+ {
+ *x += widget->allocation.x; /* go to widget->window */
+ *x -= lx; /* go to layout */
+ }
+
+ if (y)
+ {
+ *y += widget->allocation.y; /* go to widget->window */
+ *y -= ly; /* go to layout */
+ }
+}
+
+#if 0
+static void
+layout_to_window_coords (EphyLabel *label,
+ gint *x,
+ gint *y)
+{
+ gint lx, ly;
+ GtkWidget *widget;
+
+ widget = GTK_WIDGET (label);
+
+ /* get layout location in widget->window coords */
+ get_layout_location (label, &lx, &ly);
+
+ if (x)
+ {
+ *x += lx; /* go to widget->window */
+ *x -= widget->allocation.x; /* go to selection window */
+ }
+
+ if (y)
+ {
+ *y += ly; /* go to widget->window */
+ *y -= widget->allocation.y; /* go to selection window */
+ }
+}
+#endif
+
+static void
+get_layout_index (EphyLabel *label,
+ gint x,
+ gint y,
+ gint *index)
+{
+ gint trailing = 0;
+ const gchar *cluster;
+ const gchar *cluster_end;
+
+ *index = 0;
+
+ ephy_label_ensure_layout (label);
+
+ window_to_layout_coords (label, &x, &y);
+
+ x *= PANGO_SCALE;
+ y *= PANGO_SCALE;
+
+ pango_layout_xy_to_index (label->layout,
+ x, y,
+ index, &trailing);
+
+
+ cluster = label->text + *index;
+ cluster_end = cluster;
+ while (trailing)
+ {
+ cluster_end = g_utf8_next_char (cluster_end);
+ --trailing;
+ }
+
+ *index += (cluster_end - cluster);
+}
+
+static void
+ephy_label_select_word (EphyLabel *label)
+{
+ gint min, max;
+
+ gint start_index = ephy_label_move_backward_word (label, label->select_info->selection_end);
+ gint end_index = ephy_label_move_forward_word (label, label->select_info->selection_end);
+
+ min = MIN (label->select_info->selection_anchor,
+ label->select_info->selection_end);
+ max = MAX (label->select_info->selection_anchor,
+ label->select_info->selection_end);
+
+ min = MIN (min, start_index);
+ max = MAX (max, end_index);
+
+ ephy_label_select_region_index (label, min, max);
+}
+
+static gboolean
+ephy_label_button_press (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ EphyLabel *label;
+ gint index = 0;
+
+ label = EPHY_LABEL (widget);
+
+ if (label->select_info == NULL)
+ return FALSE;
+
+ if (event->button == 1)
+ {
+ if (!GTK_WIDGET_HAS_FOCUS (widget))
+ gtk_widget_grab_focus (widget);
+
+ if (event->type == GDK_3BUTTON_PRESS)
+ {
+ ephy_label_select_region_index (label, 0, strlen (label->text));
+ return TRUE;
+ }
+
+ if (event->type == GDK_2BUTTON_PRESS)
+ {
+ ephy_label_select_word (label);
+ return TRUE;
+ }
+
+ get_layout_index (label, event->x, event->y, &index);
+
+ if ((label->select_info->selection_anchor !=
+ label->select_info->selection_end) &&
+ (event->state & GDK_SHIFT_MASK))
+ {
+ gint min, max;
+
+ /* extend (same as motion) */
+ min = MIN (label->select_info->selection_anchor,
+ label->select_info->selection_end);
+ max = MAX (label->select_info->selection_anchor,
+ label->select_info->selection_end);
+
+ min = MIN (min, index);
+ max = MAX (max, index);
+
+ /* ensure the anchor is opposite index */
+ if (index == min)
+ {
+ gint tmp = min;
+ min = max;
+ max = tmp;
+ }
+
+ ephy_label_select_region_index (label, min, max);
+ }
+ else
+ {
+ if (event->type == GDK_3BUTTON_PRESS)
+ ephy_label_select_region_index (label, 0, strlen (label->text));
+ else if (event->type == GDK_2BUTTON_PRESS)
+ ephy_label_select_word (label);
+ else
+ /* start a replacement */
+ ephy_label_select_region_index (label, index, index);
+ }
+
+ return TRUE;
+ }
+ else if (event->button == 3 && event->type == GDK_BUTTON_PRESS)
+ {
+ ephy_label_do_popup (label, event);
+
+ return TRUE;
+
+ }
+ return FALSE;
+}
+
+static gboolean
+ephy_label_button_release (GtkWidget *widget,
+ GdkEventButton *event)
+
+{
+ EphyLabel *label;
+
+ label = EPHY_LABEL (widget);
+
+ if (label->select_info == NULL)
+ return FALSE;
+
+ if (event->button != 1)
+ return FALSE;
+
+ /* The goal here is to return TRUE iff we ate the
+ * button press to start selecting.
+ */
+
+ return TRUE;
+}
+
+static gboolean
+ephy_label_motion (GtkWidget *widget,
+ GdkEventMotion *event)
+{
+ EphyLabel *label;
+ gint index;
+ gint x, y;
+
+ label = EPHY_LABEL (widget);
+
+ if (label->select_info == NULL)
+ return FALSE;
+
+ if ((event->state & GDK_BUTTON1_MASK) == 0)
+ return FALSE;
+
+ gdk_window_get_pointer (label->select_info->window,
+ &x, &y, NULL);
+
+ get_layout_index (label, x, y, &index);
+
+ ephy_label_select_region_index (label,
+ label->select_info->selection_anchor,
+ index);
+
+ return TRUE;
+}
+
+static void
+ephy_label_create_window (EphyLabel *label)
+{
+ GtkWidget *widget;
+ GdkWindowAttr attributes;
+ gint attributes_mask;
+
+ g_assert (label->select_info);
+ g_assert (GTK_WIDGET_REALIZED (label));
+
+ if (label->select_info->window)
+ return;
+
+ widget = GTK_WIDGET (label);
+
+ attributes.x = widget->allocation.x;
+ attributes.y = widget->allocation.y;
+ attributes.width = widget->allocation.width;
+ attributes.height = widget->allocation.height;
+ attributes.window_type = GDK_WINDOW_TEMP;
+ attributes.wclass = GDK_INPUT_ONLY;
+ attributes.override_redirect = TRUE;
+ attributes.cursor = gdk_cursor_new_for_display (gtk_widget_get_display (widget),
+ GDK_XTERM);
+ attributes.event_mask = gtk_widget_get_events (widget) |
+ GDK_BUTTON_PRESS_MASK |
+ GDK_BUTTON_RELEASE_MASK |
+ GDK_BUTTON_MOTION_MASK;
+
+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_NOREDIR | GDK_WA_CURSOR;
+
+ label->select_info->window = gdk_window_new (widget->window,
+ &attributes, attributes_mask);
+ gdk_window_set_user_data (label->select_info->window, widget);
+
+ gdk_cursor_unref (attributes.cursor);
+}
+
+static void
+ephy_label_destroy_window (EphyLabel *label)
+{
+ g_assert (label->select_info);
+
+ if (label->select_info->window == NULL)
+ return;
+
+ gdk_window_set_user_data (label->select_info->window, NULL);
+ gdk_window_destroy (label->select_info->window);
+ label->select_info->window = NULL;
+}
+
+/**
+ * ephy_label_set_selectable:
+ * @label: a #EphyLabel
+ * @setting: %TRUE to allow selecting text in the label
+ *
+ * Selectable labels allow the user to select text from the label, for
+ * copy-and-paste.
+ *
+ **/
+void
+ephy_label_set_selectable (EphyLabel *label,
+ gboolean setting)
+{
+ gboolean old_setting;
+
+ g_return_if_fail (EPHY_IS_LABEL (label));
+
+ setting = setting != FALSE;
+ old_setting = label->select_info != NULL;
+
+ if (setting)
+ {
+ if (label->select_info == NULL)
+ {
+ label->select_info = g_new0 (EphyLabelSelectionInfo, 1);
+
+ GTK_WIDGET_SET_FLAGS (label, GTK_CAN_FOCUS);
+
+ if (GTK_WIDGET_REALIZED (label))
+ ephy_label_create_window (label);
+
+ if (GTK_WIDGET_MAPPED (label))
+ gdk_window_show (label->select_info->window);
+ }
+ }
+ else
+ {
+ if (label->select_info)
+ {
+ /* unselect, to give up the selection */
+ ephy_label_select_region (label, 0, 0);
+
+ if (label->select_info->window)
+ {
+ ephy_label_destroy_window (label);
+ }
+
+ g_free (label->select_info);
+
+ label->select_info = NULL;
+
+ GTK_WIDGET_UNSET_FLAGS (label, GTK_CAN_FOCUS);
+ }
+ }
+ if (setting != old_setting)
+ {
+ g_object_freeze_notify (G_OBJECT (label));
+ g_object_notify (G_OBJECT (label), "selectable");
+ g_object_notify (G_OBJECT (label), "cursor_position");
+ g_object_notify (G_OBJECT (label), "selection_bound");
+ g_object_thaw_notify (G_OBJECT (label));
+ gtk_widget_queue_draw (GTK_WIDGET (label));
+ }
+}
+
+/**
+ * ephy_label_get_selectable:
+ * @label: a #EphyLabel
+ *
+ * Gets the value set by ephy_label_set_selectable().
+ *
+ * Return value: %TRUE if the user can copy text from the label
+ **/
+gboolean
+ephy_label_get_selectable (EphyLabel *label)
+{
+ g_return_val_if_fail (EPHY_IS_LABEL (label), FALSE);
+
+ return label->select_info != NULL;
+}
+
+static void
+get_text_callback (GtkClipboard *clipboard,
+ GtkSelectionData *selection_data,
+ guint info,
+ gpointer user_data_or_owner)
+{
+ EphyLabel *label;
+
+ label = EPHY_LABEL (user_data_or_owner);
+
+ if ((label->select_info->selection_anchor !=
+ label->select_info->selection_end) &&
+ label->text)
+ {
+ gint start, end;
+ gint len;
+
+ start = MIN (label->select_info->selection_anchor,
+ label->select_info->selection_end);
+ end = MAX (label->select_info->selection_anchor,
+ label->select_info->selection_end);
+
+ len = strlen (label->text);
+
+ if (end > len)
+ end = len;
+
+ if (start > len)
+ start = len;
+
+ gtk_selection_data_set_text (selection_data,
+ label->text + start,
+ end - start);
+ }
+}
+
+static void
+clear_text_callback (GtkClipboard *clipboard,
+ gpointer user_data_or_owner)
+{
+ EphyLabel *label;
+
+ label = EPHY_LABEL (user_data_or_owner);
+
+ if (label->select_info)
+ {
+ label->select_info->selection_anchor = label->select_info->selection_end;
+
+ gtk_widget_queue_draw (GTK_WIDGET (label));
+ }
+}
+
+static void
+ephy_label_select_region_index (EphyLabel *label,
+ gint anchor_index,
+ gint end_index)
+{
+ static const GtkTargetEntry targets[] = {
+ { "STRING", 0, 0 },
+ { "TEXT", 0, 0 },
+ { "COMPOUND_TEXT", 0, 0 },
+ { "UTF8_STRING", 0, 0 }
+ };
+
+ g_return_if_fail (EPHY_IS_LABEL (label));
+
+ if (label->select_info)
+ {
+ GtkClipboard *clipboard;
+
+ if (label->select_info->selection_anchor == anchor_index &&
+ label->select_info->selection_end == end_index)
+ return;
+
+ label->select_info->selection_anchor = anchor_index;
+ label->select_info->selection_end = end_index;
+
+ clipboard = gtk_widget_get_clipboard (GTK_WIDGET (label),
+ GDK_SELECTION_PRIMARY);
+
+ if (anchor_index != end_index)
+ {
+ gtk_clipboard_set_with_owner (clipboard,
+ targets,
+ G_N_ELEMENTS (targets),
+ get_text_callback,
+ clear_text_callback,
+ G_OBJECT (label));
+ }
+ else
+ {
+ if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (label))
+ gtk_clipboard_clear (clipboard);
+ }
+
+ gtk_widget_queue_draw (GTK_WIDGET (label));
+
+ g_object_freeze_notify (G_OBJECT (label));
+ g_object_notify (G_OBJECT (label), "cursor_position");
+ g_object_notify (G_OBJECT (label), "selection_bound");
+ g_object_thaw_notify (G_OBJECT (label));
+ }
+}
+
+/**
+ * ephy_label_select_region:
+ * @label: a #EphyLabel
+ * @start_offset: start offset (in characters not bytes)
+ * @end_offset: end offset (in characters not bytes)
+ *
+ * Selects a range of characters in the label, if the label is selectable.
+ * See ephy_label_set_selectable(). If the label is not selectable,
+ * this function has no effect. If @start_offset or
+ * @end_offset are -1, then the end of the label will be substituted.
+ *
+ **/
+void
+ephy_label_select_region (EphyLabel *label,
+ gint start_offset,
+ gint end_offset)
+{
+ g_return_if_fail (EPHY_IS_LABEL (label));
+
+ if (label->text && label->select_info)
+ {
+ if (start_offset < 0)
+ start_offset = g_utf8_strlen (label->text, -1);
+
+ if (end_offset < 0)
+ end_offset = g_utf8_strlen (label->text, -1);
+
+ ephy_label_select_region_index (label,
+ g_utf8_offset_to_pointer (label->text, start_offset) - label->text,
+ g_utf8_offset_to_pointer (label->text, end_offset) - label->text);
+ }
+}
+
+/**
+ * ephy_label_get_selection_bounds:
+ * @label: a #EphyLabel
+ * @start: return location for start of selection, as a character offset
+ * @end: return location for end of selection, as a character offset
+ *
+ * Gets the selected range of characters in the label, returning %TRUE
+ * if there's a selection.
+ *
+ * Return value: %TRUE if selection is non-empty
+ **/
+gboolean
+ephy_label_get_selection_bounds (EphyLabel *label,
+ gint *start,
+ gint *end)
+{
+ g_return_val_if_fail (EPHY_IS_LABEL (label), FALSE);
+
+ if (label->select_info == NULL)
+ {
+ /* not a selectable label */
+ if (start)
+ *start = 0;
+ if (end)
+ *end = 0;
+
+ return FALSE;
+ }
+ else
+ {
+ gint start_index, end_index;
+ gint start_offset, end_offset;
+ gint len;
+
+ start_index = MIN (label->select_info->selection_anchor,
+ label->select_info->selection_end);
+ end_index = MAX (label->select_info->selection_anchor,
+ label->select_info->selection_end);
+
+ len = strlen (label->text);
+
+ if (end_index > len)
+ end_index = len;
+
+ if (start_index > len)
+ start_index = len;
+
+ start_offset = g_utf8_strlen (label->text, start_index);
+ end_offset = g_utf8_strlen (label->text, end_index);
+
+ if (start_offset > end_offset)
+ {
+ gint tmp = start_offset;
+ start_offset = end_offset;
+ end_offset = tmp;
+ }
+
+ if (start)
+ *start = start_offset;
+
+ if (end)
+ *end = end_offset;
+
+ return start_offset != end_offset;
+ }
+}
+
+
+/**
+ * ephy_label_get_layout:
+ * @label: a #EphyLabel
+ *
+ * Gets the #PangoLayout used to display the label.
+ * The layout is useful to e.g. convert text positions to
+ * pixel positions, in combination with ephy_label_get_layout_offsets().
+ * The returned layout is owned by the label so need not be
+ * freed by the caller.
+ *
+ * Return value: the #PangoLayout for this label
+ **/
+PangoLayout*
+ephy_label_get_layout (EphyLabel *label)
+{
+ g_return_val_if_fail (EPHY_IS_LABEL (label), NULL);
+
+ ephy_label_ensure_layout (label);
+
+ return label->layout;
+}
+
+/**
+ * ephy_label_get_layout_offsets:
+ * @label: a #EphyLabel
+ * @x: location to store X offset of layout, or %NULL
+ * @y: location to store Y offset of layout, or %NULL
+ *
+ * Obtains the coordinates where the label will draw the #PangoLayout
+ * representing the text in the label; useful to convert mouse events
+ * into coordinates inside the #PangoLayout, e.g. to take some action
+ * if some part of the label is clicked. Of course you will need to
+ * create a #GtkEventBox to receive the events, and pack the label
+ * inside it, since labels are a #GTK_NO_WINDOW widget. Remember
+ * when using the #PangoLayout functions you need to convert to
+ * and from pixels using PANGO_PIXELS() or #PANGO_SCALE.
+ *
+ **/
+void
+ephy_label_get_layout_offsets (EphyLabel *label,
+ gint *x,
+ gint *y)
+{
+ g_return_if_fail (EPHY_IS_LABEL (label));
+
+ get_layout_location (label, x, y);
+}
+
+/**
+ * ephy_label_set_use_markup:
+ * @label: a #EphyLabel
+ * @setting: %TRUE if the label's text should be parsed for markup.
+ *
+ * Sets whether the text of the label contains markup in <link
+ * linkend="PangoMarkupFormat">Pango's text markup
+ * language</link>. See ephy_label_set_markup().
+ **/
+void
+ephy_label_set_use_markup (EphyLabel *label,
+ gboolean setting)
+{
+ g_return_if_fail (EPHY_IS_LABEL (label));
+
+ ephy_label_set_use_markup_internal (label, setting);
+ ephy_label_recalculate (label);
+}
+
+/**
+ * ephy_label_get_use_markup:
+ * @label: a #EphyLabel
+ *
+ * Returns whether the label's text is interpreted as marked up with
+ * the <link linkend="PangoMarkupFormat">Pango text markup
+ * language</link>. See ephy_label_set_use_markup ().
+ *
+ * Return value: %TRUE if the label's text will be parsed for markup.
+ **/
+gboolean
+ephy_label_get_use_markup (EphyLabel *label)
+{
+ g_return_val_if_fail (EPHY_IS_LABEL (label), FALSE);
+
+ return label->use_markup;
+}
+
+/**
+ * ephy_label_set_use_underline:
+ * @label: a #EphyLabel
+ * @setting: %TRUE if underlines in the text indicate mnemonics
+ *
+ * If true, an underline in the text indicates the next character should be
+ * used for the mnemonic accelerator key.
+ */
+void
+ephy_label_set_use_underline (EphyLabel *label,
+ gboolean setting)
+{
+ g_return_if_fail (EPHY_IS_LABEL (label));
+
+ ephy_label_set_use_underline_internal (label, setting);
+ ephy_label_recalculate (label);
+ if (label->use_underline)
+ ephy_label_setup_mnemonic (label, label->mnemonic_keyval);
+}
+
+/**
+ * ephy_label_get_use_underline:
+ * @label: a #EphyLabel
+ *
+ * Returns whether an embedded underline in the label indicates a
+ * mnemonic. See ephy_label_set_use_underline ().
+ *
+ * Return value: %TRUE whether an embedded underline in the label indicates
+ * the mnemonic accelerator keys.
+ **/
+gboolean
+ephy_label_get_use_underline (EphyLabel *label)
+{
+ g_return_val_if_fail (EPHY_IS_LABEL (label), FALSE);
+
+ return label->use_underline;
+}
+
+static gboolean
+ephy_label_focus (GtkWidget *widget,
+ GtkDirectionType direction)
+{
+ EphyLabel *label = EPHY_LABEL (widget);
+ GdkEvent *current_event;
+ gboolean is_control_tab = FALSE;
+
+ /* We want to be in the tab chain only if we are selectable
+ * and Control-[Shift]Tab is pressed
+ */
+ if (label->select_info == NULL)
+ return FALSE;
+
+ current_event = gtk_get_current_event ();
+
+ if (current_event)
+ {
+ if (current_event->type == GDK_KEY_PRESS &&
+ (current_event->key.keyval == GDK_Tab ||
+ current_event->key.keyval == GDK_KP_Tab ||
+ current_event->key.keyval == GDK_ISO_Left_Tab) &&
+ (current_event->key.state & GDK_CONTROL_MASK) != 0)
+ is_control_tab = TRUE;
+
+ gdk_event_free (current_event);
+ }
+
+ if (is_control_tab)
+ return GTK_WIDGET_CLASS (parent_class)->focus (widget, direction);
+ else
+ return FALSE;
+}
+
+/* Compute the X position for an offset that corresponds to the "more important
+ * cursor position for that offset. We use this when trying to guess to which
+ * end of the selection we should go to when the user hits the left or
+ * right arrow key.
+ */
+static void
+get_better_cursor (EphyLabel *label,
+ gint index,
+ gint *x,
+ gint *y)
+{
+ GdkKeymap *keymap = gdk_keymap_get_for_display (gtk_widget_get_display (GTK_WIDGET (label)));
+ PangoDirection keymap_direction = gdk_keymap_get_direction (keymap);
+ PangoDirection cursor_direction = get_cursor_direction (label);
+ gboolean split_cursor;
+ PangoRectangle strong_pos, weak_pos;
+
+ g_object_get (gtk_widget_get_settings (GTK_WIDGET (label)),
+ "gtk-split-cursor", &split_cursor,
+ NULL);
+
+ ephy_label_ensure_layout (label);
+
+ pango_layout_get_cursor_pos (label->layout, index,
+ &strong_pos, &weak_pos);
+
+ if (split_cursor)
+ {
+ *x = strong_pos.x / PANGO_SCALE;
+ *y = strong_pos.y / PANGO_SCALE;
+ }
+ else
+ {
+ if (keymap_direction == cursor_direction)
+ {
+ *x = strong_pos.x / PANGO_SCALE;
+ *y = strong_pos.y / PANGO_SCALE;
+ }
+ else
+ {
+ *x = weak_pos.x / PANGO_SCALE;
+ *y = weak_pos.y / PANGO_SCALE;
+ }
+ }
+}
+
+
+static gint
+ephy_label_move_logically (EphyLabel *label,
+ gint start,
+ gint count)
+{
+ gint offset = g_utf8_pointer_to_offset (label->text,
+ label->text + start);
+
+ if (label->text)
+ {
+ PangoLogAttr *log_attrs;
+ gint n_attrs;
+ gint length;
+
+ ephy_label_ensure_layout (label);
+
+ length = g_utf8_strlen (label->text, -1);
+
+ pango_layout_get_log_attrs (label->layout, &log_attrs, &n_attrs);
+
+ while (count > 0 && offset < length)
+ {
+ do
+ offset++;
+ while (offset < length && !log_attrs[offset].is_cursor_position);
+
+ count--;
+ }
+ while (count < 0 && offset > 0)
+ {
+ do
+ offset--;
+ while (offset > 0 && !log_attrs[offset].is_cursor_position);
+
+ count++;
+ }
+
+ g_free (log_attrs);
+ }
+
+ return g_utf8_offset_to_pointer (label->text, offset) - label->text;
+}
+
+static gint
+ephy_label_move_visually (EphyLabel *label,
+ gint start,
+ gint count)
+{
+ gint index;
+
+ index = start;
+
+ while (count != 0)
+ {
+ int new_index, new_trailing;
+ gboolean split_cursor;
+ gboolean strong;
+
+ ephy_label_ensure_layout (label);
+
+ g_object_get (gtk_widget_get_settings (GTK_WIDGET (label)),
+ "gtk-split-cursor", &split_cursor,
+ NULL);
+
+ if (split_cursor)
+ strong = TRUE;
+ else
+ {
+ GdkKeymap *keymap = gdk_keymap_get_for_display (gtk_widget_get_display (GTK_WIDGET (label)));
+ PangoDirection keymap_direction = gdk_keymap_get_direction (keymap);
+
+ strong = keymap_direction == get_cursor_direction (label);
+ }
+
+ if (count > 0)
+ {
+ pango_layout_move_cursor_visually (label->layout, strong, index, 0, 1, &new_index, &new_trailing);
+ count--;
+ }
+ else
+ {
+ pango_layout_move_cursor_visually (label->layout, strong, index, 0, -1, &new_index, &new_trailing);
+ count++;
+ }
+
+ if (new_index < 0 || new_index == G_MAXINT)
+ break;
+
+ index = new_index;
+
+ while (new_trailing--)
+ index = g_utf8_next_char (label->text + new_index) - label->text;
+ }
+
+ return index;
+}
+
+static gint
+ephy_label_move_forward_word (EphyLabel *label,
+ gint start)
+{
+ gint new_pos = g_utf8_pointer_to_offset (label->text,
+ label->text + start);
+ gint length;
+
+ length = g_utf8_strlen (label->text, -1);
+ if (new_pos < length)
+ {
+ PangoLogAttr *log_attrs;
+ gint n_attrs;
+
+ ephy_label_ensure_layout (label);
+
+ pango_layout_get_log_attrs (label->layout, &log_attrs, &n_attrs);
+
+ /* Find the next word end */
+ new_pos++;
+ while (new_pos < n_attrs && !log_attrs[new_pos].is_word_end)
+ new_pos++;
+
+ g_free (log_attrs);
+ }
+
+ return g_utf8_offset_to_pointer (label->text, new_pos) - label->text;
+}
+
+
+static gint
+ephy_label_move_backward_word (EphyLabel *label,
+ gint start)
+{
+ gint new_pos = g_utf8_pointer_to_offset (label->text,
+ label->text + start);
+ gint length;
+
+ length = g_utf8_strlen (label->text, -1);
+
+ if (new_pos > 0)
+ {
+ PangoLogAttr *log_attrs;
+ gint n_attrs;
+
+ ephy_label_ensure_layout (label);
+
+ pango_layout_get_log_attrs (label->layout, &log_attrs, &n_attrs);
+
+ new_pos -= 1;
+
+ /* Find the previous word beginning */
+ while (new_pos > 0 && !log_attrs[new_pos].is_word_start)
+ new_pos--;
+
+ g_free (log_attrs);
+ }
+
+ return g_utf8_offset_to_pointer (label->text, new_pos) - label->text;
+}
+
+static void
+ephy_label_move_cursor (EphyLabel *label,
+ GtkMovementStep step,
+ gint count,
+ gboolean extend_selection)
+{
+ gint new_pos;
+
+ if (label->select_info == NULL)
+ return;
+
+ new_pos = label->select_info->selection_end;
+
+ if (label->select_info->selection_end != label->select_info->selection_anchor &&
+ !extend_selection)
+ {
+ /* If we have a current selection and aren't extending it, move to the
+ * start/or end of the selection as appropriate
+ */
+ switch (step)
+ {
+ case GTK_MOVEMENT_VISUAL_POSITIONS:
+ {
+ gint end_x, end_y;
+ gint anchor_x, anchor_y;
+ gboolean end_is_left;
+
+ get_better_cursor (label, label->select_info->selection_end, &end_x, &end_y);
+ get_better_cursor (label, label->select_info->selection_anchor, &anchor_x, &anchor_y);
+
+ end_is_left = (end_y < anchor_y) || (end_y == anchor_y && end_x < anchor_x);
+
+ if (count < 0)
+ new_pos = end_is_left ? label->select_info->selection_end : label->select_info->selection_anchor;
+ else
+ new_pos = !end_is_left ? label->select_info->selection_end : label->select_info->selection_anchor;
+
+ break;
+ }
+ case GTK_MOVEMENT_LOGICAL_POSITIONS:
+ case GTK_MOVEMENT_WORDS:
+ if (count < 0)
+ new_pos = MIN (label->select_info->selection_end, label->select_info->selection_anchor);
+ else
+ new_pos = MAX (label->select_info->selection_end, label->select_info->selection_anchor);
+ break;
+ case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
+ case GTK_MOVEMENT_PARAGRAPH_ENDS:
+ case GTK_MOVEMENT_BUFFER_ENDS:
+ /* FIXME: Can do better here */
+ new_pos = count < 0 ? 0 : strlen (label->text);
+ break;
+ case GTK_MOVEMENT_DISPLAY_LINES:
+ case GTK_MOVEMENT_PARAGRAPHS:
+ case GTK_MOVEMENT_PAGES:
+ case GTK_MOVEMENT_HORIZONTAL_PAGES:
+ break;
+ }
+ }
+ else
+ {
+ switch (step)
+ {
+ case GTK_MOVEMENT_LOGICAL_POSITIONS:
+ new_pos = ephy_label_move_logically (label, new_pos, count);
+ break;
+ case GTK_MOVEMENT_VISUAL_POSITIONS:
+ new_pos = ephy_label_move_visually (label, new_pos, count);
+ break;
+ case GTK_MOVEMENT_WORDS:
+ while (count > 0)
+ {
+ new_pos = ephy_label_move_forward_word (label, new_pos);
+ count--;
+ }
+ while (count < 0)
+ {
+ new_pos = ephy_label_move_backward_word (label, new_pos);
+ count++;
+ }
+ break;
+ case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
+ case GTK_MOVEMENT_PARAGRAPH_ENDS:
+ case GTK_MOVEMENT_BUFFER_ENDS:
+ /* FIXME: Can do better here */
+ new_pos = count < 0 ? 0 : strlen (label->text);
+ break;
+ case GTK_MOVEMENT_DISPLAY_LINES:
+ case GTK_MOVEMENT_PARAGRAPHS:
+ case GTK_MOVEMENT_PAGES:
+ case GTK_MOVEMENT_HORIZONTAL_PAGES:
+ break;
+ }
+ }
+
+ if (extend_selection)
+ ephy_label_select_region_index (label,
+ label->select_info->selection_anchor,
+ new_pos);
+ else
+ ephy_label_select_region_index (label, new_pos, new_pos);
+}
+
+static void
+ephy_label_copy_clipboard (EphyLabel *label)
+{
+ if (label->text && label->select_info)
+ {
+ gint start, end;
+ gint len;
+
+ start = MIN (label->select_info->selection_anchor,
+ label->select_info->selection_end);
+ end = MAX (label->select_info->selection_anchor,
+ label->select_info->selection_end);
+
+ len = strlen (label->text);
+
+ if (end > len)
+ end = len;
+
+ if (start > len)
+ start = len;
+
+ if (start != end)
+ gtk_clipboard_set_text (gtk_widget_get_clipboard (GTK_WIDGET (label),
+ GDK_SELECTION_CLIPBOARD),
+ label->text + start, end - start);
+ }
+}
+
+static void
+ephy_label_select_all (EphyLabel *label)
+{
+ ephy_label_select_region_index (label, 0, strlen (label->text));
+}
+
+/* Quick hack of a popup menu
+ */
+static void
+activate_cb (GtkWidget *menuitem,
+ EphyLabel *label)
+{
+ const gchar *signal = g_object_get_data (G_OBJECT (menuitem), "gtk-signal");
+ g_signal_emit_by_name (label, signal);
+}
+
+static void
+append_action_signal (EphyLabel *label,
+ GtkWidget *menu,
+ const gchar *stock_id,
+ const gchar *signal,
+ gboolean sensitive)
+{
+ GtkWidget *menuitem = gtk_image_menu_item_new_from_stock (stock_id, NULL);
+
+ g_object_set_data (G_OBJECT (menuitem), "gtk-signal", (char *)signal);
+ g_signal_connect (menuitem, "activate",
+ G_CALLBACK (activate_cb), label);
+
+ gtk_widget_set_sensitive (menuitem, sensitive);
+
+ gtk_widget_show (menuitem);
+ gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
+}
+
+static void
+popup_menu_detach (GtkWidget *attach_widget,
+ GtkMenu *menu)
+{
+ EphyLabel *label;
+ label = EPHY_LABEL (attach_widget);
+
+ if (label->select_info)
+ label->select_info->popup_menu = NULL;
+}
+
+static void
+popup_position_func (GtkMenu *menu,
+ gint *x,
+ gint *y,
+ gboolean *push_in,
+ gpointer user_data)
+{
+ EphyLabel *label;
+ GtkWidget *widget;
+ GtkRequisition req;
+ GdkScreen *screen;
+
+ label = EPHY_LABEL (user_data);
+ widget = GTK_WIDGET (label);
+
+ if (label->select_info == NULL)
+ return;
+
+ g_return_if_fail (GTK_WIDGET_REALIZED (label));
+
+ screen = gtk_widget_get_screen (widget);
+ gdk_window_get_origin (widget->window, x, y);
+
+ gtk_widget_size_request (label->select_info->popup_menu, &req);
+
+ *x += widget->allocation.width / 2;
+ *y += widget->allocation.height;
+
+ *x = CLAMP (*x, 0, MAX (0, gdk_screen_get_width (screen) - req.width));
+ *y = CLAMP (*y, 0, MAX (0, gdk_screen_get_height (screen) - req.height));
+}
+
+
+static void
+ephy_label_do_popup (EphyLabel *label,
+ GdkEventButton *event)
+{
+ GtkWidget *menuitem;
+ gboolean have_selection;
+
+ if (label->select_info == NULL)
+ return;
+
+ if (label->select_info->popup_menu)
+ gtk_widget_destroy (label->select_info->popup_menu);
+
+ label->select_info->popup_menu = gtk_menu_new ();
+
+ gtk_menu_attach_to_widget (GTK_MENU (label->select_info->popup_menu),
+ GTK_WIDGET (label),
+ popup_menu_detach);
+
+ have_selection =
+ label->select_info->selection_anchor != label->select_info->selection_end;
+
+
+ append_action_signal (label, label->select_info->popup_menu, GTK_STOCK_CUT, "cut_clipboard",
+ FALSE);
+ append_action_signal (label, label->select_info->popup_menu, GTK_STOCK_COPY, "copy_clipboard",
+ have_selection);
+ append_action_signal (label, label->select_info->popup_menu, GTK_STOCK_PASTE, "paste_clipboard",
+ FALSE);
+
+ menuitem = gtk_menu_item_new_with_label (_("Select All"));
+ g_signal_connect_swapped (menuitem, "activate",
+ G_CALLBACK (ephy_label_select_all), label);
+ gtk_widget_show (menuitem);
+ gtk_menu_shell_append (GTK_MENU_SHELL (label->select_info->popup_menu), menuitem);
+
+ menuitem = gtk_separator_menu_item_new ();
+ gtk_widget_show (menuitem);
+ gtk_menu_shell_append (GTK_MENU_SHELL (label->select_info->popup_menu), menuitem);
+
+ menuitem = gtk_menu_item_new_with_label (_("Input Methods"));
+ gtk_widget_show (menuitem);
+ gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), gtk_menu_new ());
+ gtk_widget_set_sensitive (menuitem, FALSE);
+ gtk_menu_shell_append (GTK_MENU_SHELL (label->select_info->popup_menu), menuitem);
+
+ g_signal_emit (label,
+ signals[POPULATE_POPUP],
+ 0,
+ label->select_info->popup_menu);
+
+ if (event)
+ gtk_menu_popup (GTK_MENU (label->select_info->popup_menu), NULL, NULL,
+ NULL, NULL,
+ event->button, event->time);
+ else
+ gtk_menu_popup (GTK_MENU (label->select_info->popup_menu), NULL, NULL,
+ popup_position_func, label,
+ 0, gtk_get_current_event_time ());
+}
diff --git a/lib/widgets/ephy-label.h b/lib/widgets/ephy-label.h
new file mode 100644
index 000000000..d8ac386d4
--- /dev/null
+++ b/lib/widgets/ephy-label.h
@@ -0,0 +1,172 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
+ * file for a list of people on the GTK+ Team. See the ChangeLog
+ * files for a list of changes. These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
+ */
+
+#ifndef __EPHY_LABEL_H__
+#define __EPHY_LABEL_H__
+
+
+#include <gdk/gdk.h>
+#include <gtk/gtkmisc.h>
+#include <gtk/gtkwindow.h>
+#include <gtk/gtkmenu.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+
+#define EPHY_TYPE_LABEL (ephy_label_get_type ())
+#define EPHY_LABEL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), EPHY_TYPE_LABEL, EphyLabel))
+#define EPHY_LABEL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), EPHY_TYPE_LABEL, EphyLabelClass))
+#define EPHY_IS_LABEL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), EPHY_TYPE_LABEL))
+#define EPHY_IS_LABEL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EPHY_TYPE_LABEL))
+#define EPHY_LABEL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), EPHY_TYPE_LABEL, EphyLabelClass))
+
+
+typedef struct _EphyLabel EphyLabel;
+typedef struct _EphyLabelClass EphyLabelClass;
+
+typedef struct _EphyLabelSelectionInfo EphyLabelSelectionInfo;
+
+struct _EphyLabel
+{
+ GtkMisc misc;
+
+ /*< private >*/
+ gchar *label;
+ guint jtype : 2;
+ guint wrap : 1;
+ guint use_underline : 1;
+ guint use_markup : 1;
+ guint ellipsize : 3;
+
+ guint mnemonic_keyval;
+
+ gchar *text;
+ PangoAttrList *attrs;
+ PangoAttrList *effective_attrs;
+
+ PangoLayout *layout;
+
+ GtkWidget *mnemonic_widget;
+ GtkWindow *mnemonic_window;
+
+ EphyLabelSelectionInfo *select_info;
+};
+
+struct _EphyLabelClass
+{
+ GtkMiscClass parent_class;
+
+ void (* move_cursor) (EphyLabel *label,
+ GtkMovementStep step,
+ gint count,
+ gboolean extend_selection);
+ void (* copy_clipboard) (EphyLabel *label);
+
+ /* Hook to customize right-click popup for selectable labels */
+ void (* populate_popup) (EphyLabel *label,
+ GtkMenu *menu);
+
+ /* Padding for future expansion */
+ void (*_gtk_reserved1) (void);
+ void (*_gtk_reserved2) (void);
+ void (*_gtk_reserved3) (void);
+ void (*_gtk_reserved4) (void);
+};
+
+GType ephy_label_get_type (void) G_GNUC_CONST;
+GtkWidget* ephy_label_new (const char *str);
+GtkWidget* ephy_label_new_with_mnemonic (const char *str);
+void ephy_label_set_text (EphyLabel *label,
+ const char *str);
+G_CONST_RETURN gchar* ephy_label_get_text (EphyLabel *label);
+void ephy_label_set_attributes (EphyLabel *label,
+ PangoAttrList *attrs);
+PangoAttrList *ephy_label_get_attributes (EphyLabel *label);
+void ephy_label_set_label (EphyLabel *label,
+ const gchar *str);
+G_CONST_RETURN gchar *ephy_label_get_label (EphyLabel *label);
+void ephy_label_set_markup (EphyLabel *label,
+ const gchar *str);
+void ephy_label_set_use_markup (EphyLabel *label,
+ gboolean setting);
+gboolean ephy_label_get_use_markup (EphyLabel *label);
+void ephy_label_set_use_underline (EphyLabel *label,
+ gboolean setting);
+gboolean ephy_label_get_use_underline (EphyLabel *label);
+
+void ephy_label_set_markup_with_mnemonic (EphyLabel *label,
+ const gchar *str);
+guint ephy_label_get_mnemonic_keyval (EphyLabel *label);
+void ephy_label_set_mnemonic_widget (EphyLabel *label,
+ GtkWidget *widget);
+GtkWidget *ephy_label_get_mnemonic_widget (EphyLabel *label);
+void ephy_label_set_text_with_mnemonic (EphyLabel *label,
+ const gchar *str);
+void ephy_label_set_justify (EphyLabel *label,
+ GtkJustification jtype);
+GtkJustification ephy_label_get_justify (EphyLabel *label);
+void ephy_label_set_ellipsize (EphyLabel *label,
+ PangoEllipsizeMode mode);
+PangoEllipsizeMode ephy_label_get_ellipsize (EphyLabel *label);
+void ephy_label_set_pattern (EphyLabel *label,
+ const gchar *pattern);
+void ephy_label_set_line_wrap (EphyLabel *label,
+ gboolean wrap);
+gboolean ephy_label_get_line_wrap (EphyLabel *label);
+void ephy_label_set_selectable (EphyLabel *label,
+ gboolean setting);
+gboolean ephy_label_get_selectable (EphyLabel *label);
+void ephy_label_select_region (EphyLabel *label,
+ gint start_offset,
+ gint end_offset);
+gboolean ephy_label_get_selection_bounds (EphyLabel *label,
+ gint *start,
+ gint *end);
+
+PangoLayout *ephy_label_get_layout (EphyLabel *label);
+void ephy_label_get_layout_offsets (EphyLabel *label,
+ gint *x,
+ gint *y);
+
+
+#define ephy_label_set ephy_label_set_text
+void ephy_label_get (EphyLabel *label,
+ char **str);
+
+/* Convenience function to set the name and pattern by parsing
+ * a string with embedded underscores, and return the appropriate
+ * key symbol for the accelerator.
+ */
+guint ephy_label_parse_uline (EphyLabel *label,
+ const gchar *string);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+
+#endif /* __EPHY_LABEL_H__ */