diff options
Diffstat (limited to '')
| -rw-r--r-- | app/widgets/gimptextbuffer.c | 1866 |
1 files changed, 1866 insertions, 0 deletions
diff --git a/app/widgets/gimptextbuffer.c b/app/widgets/gimptextbuffer.c new file mode 100644 index 0000000..ad66529 --- /dev/null +++ b/app/widgets/gimptextbuffer.c @@ -0,0 +1,1866 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * GimpTextBuffer + * Copyright (C) 2010 Michael Natterer <mitch@gimp.org> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include <stdlib.h> + +#include <gegl.h> +#include <gtk/gtk.h> + +#include "libgimpbase/gimpbase.h" +#include "libgimpcolor/gimpcolor.h" + +#include "widgets-types.h" + +#include "gimptextbuffer.h" +#include "gimptextbuffer-serialize.h" +#include "gimptexttag.h" +#include "gimpwidgets-utils.h" + +#include "gimp-intl.h" + + +enum +{ + COLOR_APPLIED, + LAST_SIGNAL +}; + + +/* local function prototypes */ + +static void gimp_text_buffer_constructed (GObject *object); +static void gimp_text_buffer_dispose (GObject *object); +static void gimp_text_buffer_finalize (GObject *object); + +static void gimp_text_buffer_mark_set (GtkTextBuffer *buffer, + const GtkTextIter *location, + GtkTextMark *mark); + + +G_DEFINE_TYPE (GimpTextBuffer, gimp_text_buffer, GTK_TYPE_TEXT_BUFFER) + +#define parent_class gimp_text_buffer_parent_class + +static guint buffer_signals[LAST_SIGNAL] = { 0, }; + + +static void +gimp_text_buffer_class_init (GimpTextBufferClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + GtkTextBufferClass *buffer_class = GTK_TEXT_BUFFER_CLASS (klass); + + object_class->constructed = gimp_text_buffer_constructed; + object_class->dispose = gimp_text_buffer_dispose; + object_class->finalize = gimp_text_buffer_finalize; + + buffer_class->mark_set = gimp_text_buffer_mark_set; + + buffer_signals[COLOR_APPLIED] = + g_signal_new ("color-applied", + G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_FIRST, + G_STRUCT_OFFSET (GimpTextBufferClass, color_applied), + NULL, NULL, + g_cclosure_marshal_VOID__BOXED, + G_TYPE_NONE, 1, + GIMP_TYPE_RGB); +} + +static void +gimp_text_buffer_init (GimpTextBuffer *buffer) +{ + buffer->markup_atom = + gtk_text_buffer_register_serialize_format (GTK_TEXT_BUFFER (buffer), + "application/x-gimp-pango-markup", + gimp_text_buffer_serialize, + NULL, NULL); + + gtk_text_buffer_register_deserialize_format (GTK_TEXT_BUFFER (buffer), + "application/x-gimp-pango-markup", + gimp_text_buffer_deserialize, + NULL, NULL); +} + +static void +gimp_text_buffer_constructed (GObject *object) +{ + GimpTextBuffer *buffer = GIMP_TEXT_BUFFER (object); + + G_OBJECT_CLASS (parent_class)->constructed (object); + + gtk_text_buffer_set_text (GTK_TEXT_BUFFER (buffer), "", -1); + + buffer->bold_tag = gtk_text_buffer_create_tag (GTK_TEXT_BUFFER (buffer), + "bold", + "weight", PANGO_WEIGHT_BOLD, + NULL); + + buffer->italic_tag = gtk_text_buffer_create_tag (GTK_TEXT_BUFFER (buffer), + "italic", + "style", PANGO_STYLE_ITALIC, + NULL); + + buffer->underline_tag = gtk_text_buffer_create_tag (GTK_TEXT_BUFFER (buffer), + "underline", + "underline", PANGO_UNDERLINE_SINGLE, + NULL); + + buffer->preedit_underline_tag = gtk_text_buffer_create_tag (GTK_TEXT_BUFFER (buffer), + "preedit-underline", + "underline", PANGO_UNDERLINE_SINGLE, + NULL); + + buffer->strikethrough_tag = gtk_text_buffer_create_tag (GTK_TEXT_BUFFER (buffer), + "strikethrough", + "strikethrough", TRUE, + NULL); +} + +static void +gimp_text_buffer_dispose (GObject *object) +{ + /* GimpTextBuffer *buffer = GIMP_TEXT_BUFFER (object); */ + + G_OBJECT_CLASS (parent_class)->dispose (object); +} + +static void +gimp_text_buffer_finalize (GObject *object) +{ + GimpTextBuffer *buffer = GIMP_TEXT_BUFFER (object); + + if (buffer->size_tags) + { + g_list_free (buffer->size_tags); + buffer->size_tags = NULL; + } + + if (buffer->baseline_tags) + { + g_list_free (buffer->baseline_tags); + buffer->baseline_tags = NULL; + } + + if (buffer->kerning_tags) + { + g_list_free (buffer->kerning_tags); + buffer->kerning_tags = NULL; + } + + if (buffer->font_tags) + { + g_list_free (buffer->font_tags); + buffer->font_tags = NULL; + } + + if (buffer->color_tags) + { + g_list_free (buffer->color_tags); + buffer->color_tags = NULL; + } + + if (buffer->preedit_color_tags) + { + g_list_free (buffer->preedit_color_tags); + buffer->preedit_color_tags = NULL; + } + + if (buffer->preedit_bg_color_tags) + { + g_list_free (buffer->preedit_bg_color_tags); + buffer->preedit_bg_color_tags = NULL; + } + + gimp_text_buffer_clear_insert_tags (buffer); + + G_OBJECT_CLASS (parent_class)->finalize (object); +} + +static void +gimp_text_buffer_mark_set (GtkTextBuffer *buffer, + const GtkTextIter *location, + GtkTextMark *mark) +{ + gimp_text_buffer_clear_insert_tags (GIMP_TEXT_BUFFER (buffer)); + + GTK_TEXT_BUFFER_CLASS (parent_class)->mark_set (buffer, location, mark); +} + + +/* public functions */ + +GimpTextBuffer * +gimp_text_buffer_new (void) +{ + return g_object_new (GIMP_TYPE_TEXT_BUFFER, NULL); +} + +void +gimp_text_buffer_set_text (GimpTextBuffer *buffer, + const gchar *text) +{ + g_return_if_fail (GIMP_IS_TEXT_BUFFER (buffer)); + + if (text == NULL) + text = ""; + + gtk_text_buffer_set_text (GTK_TEXT_BUFFER (buffer), text, -1); + + gimp_text_buffer_clear_insert_tags (buffer); +} + +gchar * +gimp_text_buffer_get_text (GimpTextBuffer *buffer) +{ + GtkTextIter start, end; + + g_return_val_if_fail (GIMP_IS_TEXT_BUFFER (buffer), NULL); + + gtk_text_buffer_get_bounds (GTK_TEXT_BUFFER (buffer), &start, &end); + + return gtk_text_buffer_get_text (GTK_TEXT_BUFFER (buffer), + &start, &end, TRUE); +} + +void +gimp_text_buffer_set_markup (GimpTextBuffer *buffer, + const gchar *markup) +{ + g_return_if_fail (GIMP_IS_TEXT_BUFFER (buffer)); + + gimp_text_buffer_set_text (buffer, NULL); + + if (markup) + { + GtkTextTagTable *tag_table; + GtkTextBuffer *content; + GtkTextIter insert; + GError *error = NULL; + + tag_table = gtk_text_buffer_get_tag_table (GTK_TEXT_BUFFER (buffer)); + content = gtk_text_buffer_new (tag_table); + + gtk_text_buffer_get_start_iter (content, &insert); + + if (! gtk_text_buffer_deserialize (GTK_TEXT_BUFFER (buffer), + content, + buffer->markup_atom, + &insert, + (const guint8 *) markup, -1, + &error)) + { + g_printerr ("EEK: %s\n", error->message); + g_clear_error (&error); + } + else + { + GtkTextIter start, end; + + gimp_text_buffer_post_deserialize (buffer, content); + + gtk_text_buffer_get_bounds (content, &start, &end); + gtk_text_buffer_get_start_iter (GTK_TEXT_BUFFER (buffer), &insert); + + gtk_text_buffer_insert_range (GTK_TEXT_BUFFER (buffer), + &insert, &start, &end); + } + + g_object_unref (content); + } + + gimp_text_buffer_clear_insert_tags (buffer); +} + +gchar * +gimp_text_buffer_get_markup (GimpTextBuffer *buffer) +{ + GtkTextTagTable *tag_table; + GtkTextBuffer *content; + GtkTextIter insert; + GtkTextIter start, end; + gchar *markup; + gsize length; + + g_return_val_if_fail (GIMP_IS_TEXT_BUFFER (buffer), NULL); + + tag_table = gtk_text_buffer_get_tag_table (GTK_TEXT_BUFFER (buffer)); + content = gtk_text_buffer_new (tag_table); + + gtk_text_buffer_get_bounds (GTK_TEXT_BUFFER (buffer), &start, &end); + gtk_text_buffer_get_start_iter (content, &insert); + + gtk_text_buffer_insert_range (content, &insert, &start, &end); + + gimp_text_buffer_pre_serialize (buffer, content); + + gtk_text_buffer_get_bounds (content, &start, &end); + + markup = (gchar *) gtk_text_buffer_serialize (GTK_TEXT_BUFFER (buffer), + content, + buffer->markup_atom, + &start, &end, + &length); + + g_object_unref (content); + + return markup; +} + +gboolean +gimp_text_buffer_has_markup (GimpTextBuffer *buffer) +{ + GtkTextIter iter; + + g_return_val_if_fail (GIMP_IS_TEXT_BUFFER (buffer), FALSE); + + gtk_text_buffer_get_start_iter (GTK_TEXT_BUFFER (buffer), &iter); + + do + { + GSList *tags = gtk_text_iter_get_tags (&iter); + + if (tags) + { + g_slist_free (tags); + return TRUE; + } + } + while (gtk_text_iter_forward_char (&iter)); + + return FALSE; +} + +GtkTextTag * +gimp_text_buffer_get_iter_size (GimpTextBuffer *buffer, + const GtkTextIter *iter, + gint *size) +{ + GList *list; + + for (list = buffer->size_tags; list; list = g_list_next (list)) + { + GtkTextTag *tag = list->data; + + if (gtk_text_iter_has_tag (iter, tag)) + { + if (size) + *size = gimp_text_tag_get_size (tag); + + return tag; + } + } + + if (size) + *size = 0; + + return NULL; +} + +GtkTextTag * +gimp_text_buffer_get_size_tag (GimpTextBuffer *buffer, + gint size) +{ + GList *list; + GtkTextTag *tag; + gchar name[32]; + + for (list = buffer->size_tags; list; list = g_list_next (list)) + { + tag = list->data; + + if (size == gimp_text_tag_get_size (tag)) + return tag; + } + + g_snprintf (name, sizeof (name), "size-%d", size); + + tag = gtk_text_buffer_create_tag (GTK_TEXT_BUFFER (buffer), + name, + GIMP_TEXT_PROP_NAME_SIZE, size, + NULL); + + buffer->size_tags = g_list_prepend (buffer->size_tags, tag); + + return tag; +} + +void +gimp_text_buffer_set_size (GimpTextBuffer *buffer, + const GtkTextIter *start, + const GtkTextIter *end, + gint size) +{ + GList *list; + + g_return_if_fail (GIMP_IS_TEXT_BUFFER (buffer)); + g_return_if_fail (start != NULL); + g_return_if_fail (end != NULL); + + if (gtk_text_iter_equal (start, end)) + return; + + gtk_text_buffer_begin_user_action (GTK_TEXT_BUFFER (buffer)); + + for (list = buffer->size_tags; list; list = g_list_next (list)) + { + gtk_text_buffer_remove_tag (GTK_TEXT_BUFFER (buffer), list->data, + start, end); + } + + if (size != 0) + { + GtkTextTag *tag; + + tag = gimp_text_buffer_get_size_tag (buffer, size); + + gtk_text_buffer_apply_tag (GTK_TEXT_BUFFER (buffer), tag, + start, end); + } + + gtk_text_buffer_end_user_action (GTK_TEXT_BUFFER (buffer)); +} + +void +gimp_text_buffer_change_size (GimpTextBuffer *buffer, + const GtkTextIter *start, + const GtkTextIter *end, + gint count) +{ + GtkTextIter iter; + GtkTextIter span_start; + GtkTextIter span_end; + GtkTextTag *span_tag; + gint span_size; + + g_return_if_fail (GIMP_IS_TEXT_BUFFER (buffer)); + g_return_if_fail (start != NULL); + g_return_if_fail (end != NULL); + + if (gtk_text_iter_equal (start, end)) + return; + + iter = *start; + span_start = *start; + span_tag = gimp_text_buffer_get_iter_size (buffer, &iter, + &span_size); + + gtk_text_buffer_begin_user_action (GTK_TEXT_BUFFER (buffer)); + + do + { + GtkTextTag *iter_tag; + gint iter_size; + + gtk_text_iter_forward_char (&iter); + + iter_tag = gimp_text_buffer_get_iter_size (buffer, &iter, + &iter_size); + + span_end = iter; + + if (iter_size != span_size || + gtk_text_iter_compare (&iter, end) >= 0) + { + if (span_size != 0) + { + gtk_text_buffer_remove_tag (GTK_TEXT_BUFFER (buffer), span_tag, + &span_start, &span_end); + } + + if ((span_size + count) > 0) + { + span_tag = gimp_text_buffer_get_size_tag (buffer, + span_size + count); + + gtk_text_buffer_apply_tag (GTK_TEXT_BUFFER (buffer), span_tag, + &span_start, &span_end); + } + + span_start = iter; + span_size = iter_size; + span_tag = iter_tag; + } + + /* We might have moved too far */ + if (gtk_text_iter_compare (&iter, end) > 0) + iter = *end; + } + while (! gtk_text_iter_equal (&iter, end)); + + gtk_text_buffer_end_user_action (GTK_TEXT_BUFFER (buffer)); +} + +GtkTextTag * +gimp_text_buffer_get_iter_baseline (GimpTextBuffer *buffer, + const GtkTextIter *iter, + gint *baseline) +{ + GList *list; + + for (list = buffer->baseline_tags; list; list = g_list_next (list)) + { + GtkTextTag *tag = list->data; + + if (gtk_text_iter_has_tag (iter, tag)) + { + if (baseline) + *baseline = gimp_text_tag_get_baseline (tag); + + return tag; + } + } + + if (baseline) + *baseline = 0; + + return NULL; +} + +static GtkTextTag * +gimp_text_buffer_get_baseline_tag (GimpTextBuffer *buffer, + gint baseline) +{ + GList *list; + GtkTextTag *tag; + gchar name[32]; + + for (list = buffer->baseline_tags; list; list = g_list_next (list)) + { + tag = list->data; + + if (baseline == gimp_text_tag_get_baseline (tag)) + return tag; + } + + g_snprintf (name, sizeof (name), "baseline-%d", baseline); + + tag = gtk_text_buffer_create_tag (GTK_TEXT_BUFFER (buffer), + name, + GIMP_TEXT_PROP_NAME_BASELINE, baseline, + NULL); + + buffer->baseline_tags = g_list_prepend (buffer->baseline_tags, tag); + + return tag; +} + +void +gimp_text_buffer_set_baseline (GimpTextBuffer *buffer, + const GtkTextIter *start, + const GtkTextIter *end, + gint baseline) +{ + GList *list; + + g_return_if_fail (GIMP_IS_TEXT_BUFFER (buffer)); + g_return_if_fail (start != NULL); + g_return_if_fail (end != NULL); + + if (gtk_text_iter_equal (start, end)) + return; + + gtk_text_buffer_begin_user_action (GTK_TEXT_BUFFER (buffer)); + + for (list = buffer->baseline_tags; list; list = g_list_next (list)) + { + gtk_text_buffer_remove_tag (GTK_TEXT_BUFFER (buffer), list->data, + start, end); + } + + if (baseline != 0) + { + GtkTextTag *tag; + + tag = gimp_text_buffer_get_baseline_tag (buffer, baseline); + + gtk_text_buffer_apply_tag (GTK_TEXT_BUFFER (buffer), tag, + start, end); + } + + gtk_text_buffer_end_user_action (GTK_TEXT_BUFFER (buffer)); +} + +void +gimp_text_buffer_change_baseline (GimpTextBuffer *buffer, + const GtkTextIter *start, + const GtkTextIter *end, + gint count) +{ + GtkTextIter iter; + GtkTextIter span_start; + GtkTextIter span_end; + GtkTextTag *span_tag; + gint span_baseline; + + g_return_if_fail (GIMP_IS_TEXT_BUFFER (buffer)); + g_return_if_fail (start != NULL); + g_return_if_fail (end != NULL); + + if (gtk_text_iter_equal (start, end)) + return; + + iter = *start; + span_start = *start; + span_tag = gimp_text_buffer_get_iter_baseline (buffer, &iter, + &span_baseline); + + gtk_text_buffer_begin_user_action (GTK_TEXT_BUFFER (buffer)); + + do + { + GtkTextTag *iter_tag; + gint iter_baseline; + + gtk_text_iter_forward_char (&iter); + + iter_tag = gimp_text_buffer_get_iter_baseline (buffer, &iter, + &iter_baseline); + + span_end = iter; + + if (iter_baseline != span_baseline || + gtk_text_iter_compare (&iter, end) >= 0) + { + if (span_baseline != 0) + { + gtk_text_buffer_remove_tag (GTK_TEXT_BUFFER (buffer), span_tag, + &span_start, &span_end); + } + + if (span_baseline + count != 0) + { + span_tag = gimp_text_buffer_get_baseline_tag (buffer, + span_baseline + count); + + gtk_text_buffer_apply_tag (GTK_TEXT_BUFFER (buffer), span_tag, + &span_start, &span_end); + } + + span_start = iter; + span_baseline = iter_baseline; + span_tag = iter_tag; + } + + /* We might have moved too far */ + if (gtk_text_iter_compare (&iter, end) > 0) + iter = *end; + } + while (! gtk_text_iter_equal (&iter, end)); + + gtk_text_buffer_end_user_action (GTK_TEXT_BUFFER (buffer)); +} + +GtkTextTag * +gimp_text_buffer_get_iter_kerning (GimpTextBuffer *buffer, + const GtkTextIter *iter, + gint *kerning) +{ + GList *list; + + for (list = buffer->kerning_tags; list; list = g_list_next (list)) + { + GtkTextTag *tag = list->data; + + if (gtk_text_iter_has_tag (iter, tag)) + { + if (kerning) + *kerning = gimp_text_tag_get_kerning (tag); + + return tag; + } + } + + if (kerning) + *kerning = 0; + + return NULL; +} + +static GtkTextTag * +gimp_text_buffer_get_kerning_tag (GimpTextBuffer *buffer, + gint kerning) +{ + GList *list; + GtkTextTag *tag; + gchar name[32]; + + for (list = buffer->kerning_tags; list; list = g_list_next (list)) + { + tag = list->data; + + if (kerning == gimp_text_tag_get_kerning (tag)) + return tag; + } + + g_snprintf (name, sizeof (name), "kerning-%d", kerning); + + tag = gtk_text_buffer_create_tag (GTK_TEXT_BUFFER (buffer), + name, + GIMP_TEXT_PROP_NAME_KERNING, kerning, + NULL); + + buffer->kerning_tags = g_list_prepend (buffer->kerning_tags, tag); + + return tag; +} + +void +gimp_text_buffer_set_kerning (GimpTextBuffer *buffer, + const GtkTextIter *start, + const GtkTextIter *end, + gint kerning) +{ + GList *list; + + g_return_if_fail (GIMP_IS_TEXT_BUFFER (buffer)); + g_return_if_fail (start != NULL); + g_return_if_fail (end != NULL); + + if (gtk_text_iter_equal (start, end)) + return; + + gtk_text_buffer_begin_user_action (GTK_TEXT_BUFFER (buffer)); + + for (list = buffer->kerning_tags; list; list = g_list_next (list)) + { + gtk_text_buffer_remove_tag (GTK_TEXT_BUFFER (buffer), list->data, + start, end); + } + + if (kerning != 0) + { + GtkTextTag *tag; + + tag = gimp_text_buffer_get_kerning_tag (buffer, kerning); + + gtk_text_buffer_apply_tag (GTK_TEXT_BUFFER (buffer), tag, + start, end); + } + + gtk_text_buffer_end_user_action (GTK_TEXT_BUFFER (buffer)); +} + +void +gimp_text_buffer_change_kerning (GimpTextBuffer *buffer, + const GtkTextIter *start, + const GtkTextIter *end, + gint count) +{ + GtkTextIter iter; + GtkTextIter span_start; + GtkTextIter span_end; + GtkTextTag *span_tag; + gint span_kerning; + + g_return_if_fail (GIMP_IS_TEXT_BUFFER (buffer)); + g_return_if_fail (start != NULL); + g_return_if_fail (end != NULL); + + if (gtk_text_iter_equal (start, end)) + return; + + iter = *start; + span_start = *start; + span_tag = gimp_text_buffer_get_iter_kerning (buffer, &iter, + &span_kerning); + + gtk_text_buffer_begin_user_action (GTK_TEXT_BUFFER (buffer)); + + do + { + GtkTextTag *iter_tag; + gint iter_kerning; + + gtk_text_iter_forward_char (&iter); + + iter_tag = gimp_text_buffer_get_iter_kerning (buffer, &iter, + &iter_kerning); + + span_end = iter; + + if (iter_kerning != span_kerning || + gtk_text_iter_compare (&iter, end) >= 0) + { + if (span_kerning != 0) + { + gtk_text_buffer_remove_tag (GTK_TEXT_BUFFER (buffer), span_tag, + &span_start, &span_end); + } + + if (span_kerning + count != 0) + { + span_tag = gimp_text_buffer_get_kerning_tag (buffer, + span_kerning + count); + + gtk_text_buffer_apply_tag (GTK_TEXT_BUFFER (buffer), span_tag, + &span_start, &span_end); + } + + span_start = iter; + span_kerning = iter_kerning; + span_tag = iter_tag; + } + + /* We might have moved too far */ + if (gtk_text_iter_compare (&iter, end) > 0) + iter = *end; + } + while (! gtk_text_iter_equal (&iter, end)); + + gtk_text_buffer_end_user_action (GTK_TEXT_BUFFER (buffer)); +} + +GtkTextTag * +gimp_text_buffer_get_iter_font (GimpTextBuffer *buffer, + const GtkTextIter *iter, + gchar **font) +{ + GList *list; + + for (list = buffer->font_tags; list; list = g_list_next (list)) + { + GtkTextTag *tag = list->data; + + if (gtk_text_iter_has_tag (iter, tag)) + { + if (font) + *font = gimp_text_tag_get_font (tag); + + return tag; + } + } + + if (font) + *font = NULL; + + return NULL; +} + +GtkTextTag * +gimp_text_buffer_get_font_tag (GimpTextBuffer *buffer, + const gchar *font) +{ + GList *list; + GtkTextTag *tag; + gchar name[256]; + PangoFontDescription *pfd = pango_font_description_from_string (font); + char *description = pango_font_description_to_string (pfd); + + pango_font_description_free (pfd); + + for (list = buffer->font_tags; list; list = g_list_next (list)) + { + gchar *tag_font; + + tag = list->data; + + tag_font = gimp_text_tag_get_font (tag); + + if (! strcmp (description, tag_font)) + { + g_free (tag_font); + g_free (description); + return tag; + } + + g_free (tag_font); + } + + g_snprintf (name, sizeof (name), "font-%s", description); + + tag = gtk_text_buffer_create_tag (GTK_TEXT_BUFFER (buffer), + name, + "font", description, + NULL); + gtk_text_tag_set_priority (tag, 0); + g_free (description); + buffer->font_tags = g_list_prepend (buffer->font_tags, tag); + + return tag; +} + +void +gimp_text_buffer_set_font (GimpTextBuffer *buffer, + const GtkTextIter *start, + const GtkTextIter *end, + const gchar *font) +{ + GList *list; + + g_return_if_fail (GIMP_IS_TEXT_BUFFER (buffer)); + g_return_if_fail (start != NULL); + g_return_if_fail (end != NULL); + + if (gtk_text_iter_equal (start, end)) + return; + + gtk_text_buffer_begin_user_action (GTK_TEXT_BUFFER (buffer)); + + for (list = buffer->font_tags; list; list = g_list_next (list)) + { + gtk_text_buffer_remove_tag (GTK_TEXT_BUFFER (buffer), list->data, + start, end); + } + + if (font) + { + GtkTextTag *tag = gimp_text_buffer_get_font_tag (buffer, font); + + gtk_text_buffer_apply_tag (GTK_TEXT_BUFFER (buffer), tag, + start, end); + } + + gtk_text_buffer_end_user_action (GTK_TEXT_BUFFER (buffer)); +} + +GtkTextTag * +gimp_text_buffer_get_iter_color (GimpTextBuffer *buffer, + const GtkTextIter *iter, + GimpRGB *color) +{ + GList *list; + + for (list = buffer->color_tags; list; list = g_list_next (list)) + { + GtkTextTag *tag = list->data; + + if (gtk_text_iter_has_tag (iter, tag)) + { + if (color) + gimp_text_tag_get_fg_color (tag, color); + + return tag; + } + } + + return NULL; +} + +GtkTextTag * +gimp_text_buffer_get_color_tag (GimpTextBuffer *buffer, + const GimpRGB *color) +{ + GList *list; + GtkTextTag *tag; + gchar name[256]; + GdkColor gdk_color; + guchar r, g, b; + + gimp_rgb_get_uchar (color, &r, &g, &b); + + for (list = buffer->color_tags; list; list = g_list_next (list)) + { + GimpRGB tag_color; + guchar tag_r, tag_g, tag_b; + + tag = list->data; + + gimp_text_tag_get_fg_color (tag, &tag_color); + + gimp_rgb_get_uchar (&tag_color, &tag_r, &tag_g, &tag_b); + + /* Do not compare the alpha channel, since it's unused */ + if (tag_r == r && + tag_g == g && + tag_b == b) + { + return tag; + } + } + + g_snprintf (name, sizeof (name), "color-#%02x%02x%02x", + r, g, b); + + gimp_rgb_get_gdk_color (color, &gdk_color); + + tag = gtk_text_buffer_create_tag (GTK_TEXT_BUFFER (buffer), + name, + "foreground-gdk", &gdk_color, + "foreground-set", TRUE, + NULL); + + buffer->color_tags = g_list_prepend (buffer->color_tags, tag); + + return tag; +} + +void +gimp_text_buffer_set_color (GimpTextBuffer *buffer, + const GtkTextIter *start, + const GtkTextIter *end, + const GimpRGB *color) +{ + GList *list; + + g_return_if_fail (GIMP_IS_TEXT_BUFFER (buffer)); + g_return_if_fail (start != NULL); + g_return_if_fail (end != NULL); + + if (gtk_text_iter_equal (start, end)) + return; + + gtk_text_buffer_begin_user_action (GTK_TEXT_BUFFER (buffer)); + + for (list = buffer->color_tags; list; list = g_list_next (list)) + { + gtk_text_buffer_remove_tag (GTK_TEXT_BUFFER (buffer), list->data, + start, end); + } + + if (color) + { + GtkTextTag *tag = gimp_text_buffer_get_color_tag (buffer, color); + + gtk_text_buffer_apply_tag (GTK_TEXT_BUFFER (buffer), tag, + start, end); + + g_signal_emit (buffer, buffer_signals[COLOR_APPLIED], 0, color); + } + + gtk_text_buffer_end_user_action (GTK_TEXT_BUFFER (buffer)); +} + +GtkTextTag * +gimp_text_buffer_get_preedit_color_tag (GimpTextBuffer *buffer, + const GimpRGB *color) +{ + GList *list; + GtkTextTag *tag; + gchar name[256]; + GdkColor gdk_color; + guchar r, g, b; + + gimp_rgb_get_uchar (color, &r, &g, &b); + + for (list = buffer->preedit_color_tags; list; list = g_list_next (list)) + { + GimpRGB tag_color; + guchar tag_r, tag_g, tag_b; + + tag = list->data; + + gimp_text_tag_get_fg_color (tag, &tag_color); + + gimp_rgb_get_uchar (&tag_color, &tag_r, &tag_g, &tag_b); + + /* Do not compare the alpha channel, since it's unused */ + if (tag_r == r && + tag_g == g && + tag_b == b) + { + return tag; + } + } + + g_snprintf (name, sizeof (name), "preedit-color-#%02x%02x%02x", + r, g, b); + + gimp_rgb_get_gdk_color (color, &gdk_color); + + tag = gtk_text_buffer_create_tag (GTK_TEXT_BUFFER (buffer), + name, + "foreground-gdk", &gdk_color, + "foreground-set", TRUE, + NULL); + + buffer->preedit_color_tags = g_list_prepend (buffer->preedit_color_tags, tag); + + return tag; +} + +void +gimp_text_buffer_set_preedit_color (GimpTextBuffer *buffer, + const GtkTextIter *start, + const GtkTextIter *end, + const GimpRGB *color) +{ + GList *list; + + g_return_if_fail (GIMP_IS_TEXT_BUFFER (buffer)); + g_return_if_fail (start != NULL); + g_return_if_fail (end != NULL); + + if (gtk_text_iter_equal (start, end)) + return; + + gtk_text_buffer_begin_user_action (GTK_TEXT_BUFFER (buffer)); + + for (list = buffer->preedit_color_tags; list; list = g_list_next (list)) + { + gtk_text_buffer_remove_tag (GTK_TEXT_BUFFER (buffer), list->data, + start, end); + } + + if (color) + { + GtkTextTag *tag = gimp_text_buffer_get_preedit_color_tag (buffer, color); + + gtk_text_buffer_apply_tag (GTK_TEXT_BUFFER (buffer), tag, + start, end); + } + + gtk_text_buffer_end_user_action (GTK_TEXT_BUFFER (buffer)); +} + +GtkTextTag * +gimp_text_buffer_get_preedit_bg_color_tag (GimpTextBuffer *buffer, + const GimpRGB *color) +{ + GList *list; + GtkTextTag *tag; + gchar name[256]; + GdkColor gdk_color; + guchar r, g, b; + + gimp_rgb_get_uchar (color, &r, &g, &b); + + for (list = buffer->preedit_bg_color_tags; list; list = g_list_next (list)) + { + GimpRGB tag_color; + guchar tag_r, tag_g, tag_b; + + tag = list->data; + + gimp_text_tag_get_bg_color (tag, &tag_color); + + gimp_rgb_get_uchar (&tag_color, &tag_r, &tag_g, &tag_b); + + /* Do not compare the alpha channel, since it's unused */ + if (tag_r == r && + tag_g == g && + tag_b == b) + { + return tag; + } + } + + g_snprintf (name, sizeof (name), "bg-color-#%02x%02x%02x", + r, g, b); + + gimp_rgb_get_gdk_color (color, &gdk_color); + + tag = gtk_text_buffer_create_tag (GTK_TEXT_BUFFER (buffer), + name, + "background-gdk", &gdk_color, + "background-set", TRUE, + NULL); + + buffer->preedit_bg_color_tags = g_list_prepend (buffer->preedit_bg_color_tags, tag); + + return tag; +} + +void +gimp_text_buffer_set_preedit_bg_color (GimpTextBuffer *buffer, + const GtkTextIter *start, + const GtkTextIter *end, + const GimpRGB *color) +{ + GList *list; + + g_return_if_fail (GIMP_IS_TEXT_BUFFER (buffer)); + g_return_if_fail (start != NULL); + g_return_if_fail (end != NULL); + + if (gtk_text_iter_equal (start, end)) + return; + + gtk_text_buffer_begin_user_action (GTK_TEXT_BUFFER (buffer)); + + for (list = buffer->preedit_bg_color_tags; list; list = g_list_next (list)) + { + gtk_text_buffer_remove_tag (GTK_TEXT_BUFFER (buffer), list->data, + start, end); + } + + if (color) + { + GtkTextTag *tag = gimp_text_buffer_get_preedit_bg_color_tag (buffer, color); + + gtk_text_buffer_apply_tag (GTK_TEXT_BUFFER (buffer), tag, + start, end); + } + + gtk_text_buffer_end_user_action (GTK_TEXT_BUFFER (buffer)); +} + +/* Pango markup attribute names */ + +#define GIMP_TEXT_ATTR_NAME_SIZE "size" +#define GIMP_TEXT_ATTR_NAME_BASELINE "rise" +#define GIMP_TEXT_ATTR_NAME_KERNING "letter_spacing" +#define GIMP_TEXT_ATTR_NAME_FONT "font" +#define GIMP_TEXT_ATTR_NAME_STYLE "style" +#define GIMP_TEXT_ATTR_NAME_COLOR "foreground" +#define GIMP_TEXT_ATTR_NAME_FG_COLOR "fgcolor" +#define GIMP_TEXT_ATTR_NAME_BG_COLOR "background" +#define GIMP_TEXT_ATTR_NAME_UNDERLINE "underline" + +const gchar * +gimp_text_buffer_tag_to_name (GimpTextBuffer *buffer, + GtkTextTag *tag, + const gchar **attribute, + gchar **value) +{ + g_return_val_if_fail (GIMP_IS_TEXT_BUFFER (buffer), NULL); + g_return_val_if_fail (GTK_IS_TEXT_TAG (tag), NULL); + + if (attribute) + *attribute = NULL; + + if (value) + *value = NULL; + + if (tag == buffer->bold_tag) + { + return "b"; + } + else if (tag == buffer->italic_tag) + { + return "i"; + } + else if (tag == buffer->underline_tag) + { + return "u"; + } + else if (tag == buffer->strikethrough_tag) + { + return "s"; + } + else if (g_list_find (buffer->size_tags, tag)) + { + if (attribute) + *attribute = GIMP_TEXT_ATTR_NAME_SIZE; + + if (value) + *value = g_strdup_printf ("%d", gimp_text_tag_get_size (tag)); + + return "span"; + } + else if (g_list_find (buffer->baseline_tags, tag)) + { + if (attribute) + *attribute = GIMP_TEXT_ATTR_NAME_BASELINE; + + if (value) + *value = g_strdup_printf ("%d", gimp_text_tag_get_baseline (tag)); + + return "span"; + } + else if (g_list_find (buffer->kerning_tags, tag)) + { + if (attribute) + *attribute = GIMP_TEXT_ATTR_NAME_KERNING; + + if (value) + *value = g_strdup_printf ("%d", gimp_text_tag_get_kerning (tag)); + + return "span"; + } + else if (g_list_find (buffer->font_tags, tag)) + { + if (attribute) + *attribute = GIMP_TEXT_ATTR_NAME_FONT; + + if (value) + *value = gimp_text_tag_get_font (tag); + + return "span"; + } + else if (g_list_find (buffer->color_tags, tag)) + { + if (attribute) + *attribute = GIMP_TEXT_ATTR_NAME_COLOR; + + if (value) + { + GimpRGB color; + guchar r, g, b; + + gimp_text_tag_get_fg_color (tag, &color); + gimp_rgb_get_uchar (&color, &r, &g, &b); + + *value = g_strdup_printf ("#%02x%02x%02x", r, g, b); + } + + return "span"; + } + else if (g_list_find (buffer->preedit_color_tags, tag)) + { + /* "foreground" and "fgcolor" attributes are similar, but I use + * one or the other as a trick to differentiate the color chosen + * from the user and a display color for preedit. */ + if (attribute) + *attribute = GIMP_TEXT_ATTR_NAME_FG_COLOR; + + if (value) + { + GimpRGB color; + guchar r, g, b; + + gimp_text_tag_get_fg_color (tag, &color); + gimp_rgb_get_uchar (&color, &r, &g, &b); + + *value = g_strdup_printf ("#%02x%02x%02x", r, g, b); + } + + return "span"; + } + else if (g_list_find (buffer->preedit_bg_color_tags, tag)) + { + if (attribute) + *attribute = GIMP_TEXT_ATTR_NAME_BG_COLOR; + + if (value) + { + GimpRGB color; + guchar r, g, b; + + gimp_text_tag_get_bg_color (tag, &color); + gimp_rgb_get_uchar (&color, &r, &g, &b); + + *value = g_strdup_printf ("#%02x%02x%02x", r, g, b); + } + + return "span"; + } + else if (tag == buffer->preedit_underline_tag) + { + if (attribute) + *attribute = GIMP_TEXT_ATTR_NAME_UNDERLINE; + + if (value) + *value = g_strdup ("single"); + + return "span"; + } + + return NULL; +} + +GtkTextTag * +gimp_text_buffer_name_to_tag (GimpTextBuffer *buffer, + const gchar *name, + const gchar *attribute, + const gchar *value) +{ + g_return_val_if_fail (GIMP_IS_TEXT_BUFFER (buffer), NULL); + g_return_val_if_fail (name != NULL, NULL); + + if (! strcmp (name, "b")) + { + return buffer->bold_tag; + } + else if (! strcmp (name, "i")) + { + return buffer->italic_tag; + } + else if (! strcmp (name, "u")) + { + return buffer->underline_tag; + } + else if (! strcmp (name, "s")) + { + return buffer->strikethrough_tag; + } + else if (! strcmp (name, "span") && + attribute != NULL && + value != NULL) + { + if (! strcmp (attribute, GIMP_TEXT_ATTR_NAME_SIZE)) + { + return gimp_text_buffer_get_size_tag (buffer, atoi (value)); + } + else if (! strcmp (attribute, GIMP_TEXT_ATTR_NAME_BASELINE)) + { + return gimp_text_buffer_get_baseline_tag (buffer, atoi (value)); + } + else if (! strcmp (attribute, GIMP_TEXT_ATTR_NAME_KERNING)) + { + return gimp_text_buffer_get_kerning_tag (buffer, atoi (value)); + } + else if (! strcmp (attribute, GIMP_TEXT_ATTR_NAME_FONT)) + { + return gimp_text_buffer_get_font_tag (buffer, value); + } + else if (! strcmp (attribute, GIMP_TEXT_ATTR_NAME_COLOR)) + { + GimpRGB color; + guint r, g, b; + + sscanf (value, "#%02x%02x%02x", &r, &g, &b); + + gimp_rgb_set_uchar (&color, r, g, b); + + return gimp_text_buffer_get_color_tag (buffer, &color); + } + } + + return NULL; +} + +void +gimp_text_buffer_set_insert_tags (GimpTextBuffer *buffer, + GList *insert_tags, + GList *remove_tags) +{ + g_return_if_fail (GIMP_IS_TEXT_BUFFER (buffer)); + + buffer->insert_tags_set = TRUE; + + g_list_free (buffer->insert_tags); + g_list_free (buffer->remove_tags); + buffer->insert_tags = insert_tags; + buffer->remove_tags = remove_tags; +} + +void +gimp_text_buffer_clear_insert_tags (GimpTextBuffer *buffer) +{ + g_return_if_fail (GIMP_IS_TEXT_BUFFER (buffer)); + + buffer->insert_tags_set = FALSE; + + g_list_free (buffer->insert_tags); + g_list_free (buffer->remove_tags); + buffer->insert_tags = NULL; + buffer->remove_tags = NULL; +} + +void +gimp_text_buffer_insert (GimpTextBuffer *buffer, + const gchar *text) +{ + GtkTextIter iter, start; + gint start_offset; + gboolean insert_tags_set; + GList *insert_tags; + GList *remove_tags; + GSList *tags_off = NULL; + GimpRGB color; + + g_return_if_fail (GIMP_IS_TEXT_BUFFER (buffer)); + + gtk_text_buffer_get_iter_at_mark (GTK_TEXT_BUFFER (buffer), &iter, + gtk_text_buffer_get_insert (GTK_TEXT_BUFFER (buffer))); + + start_offset = gtk_text_iter_get_offset (&iter); + + insert_tags_set = buffer->insert_tags_set; + insert_tags = buffer->insert_tags; + remove_tags = buffer->remove_tags; + + buffer->insert_tags_set = FALSE; + buffer->insert_tags = NULL; + buffer->remove_tags = NULL; + + tags_off = gtk_text_iter_get_toggled_tags (&iter, FALSE); + + gtk_text_buffer_begin_user_action (GTK_TEXT_BUFFER (buffer)); + + gtk_text_buffer_insert (GTK_TEXT_BUFFER (buffer), &iter, text, -1); + + gtk_text_buffer_get_iter_at_offset (GTK_TEXT_BUFFER (buffer), &start, + start_offset); + + if (insert_tags_set) + { + GList *list; + + for (list = remove_tags; list; list = g_list_next (list)) + { + GtkTextTag *tag = list->data; + + gtk_text_buffer_remove_tag (GTK_TEXT_BUFFER (buffer), tag, + &start, &iter); + } + + for (list = insert_tags; list; list = g_list_next (list)) + { + GtkTextTag *tag = list->data; + + gtk_text_buffer_apply_tag (GTK_TEXT_BUFFER (buffer), tag, + &start, &iter); + } + } + + if (tags_off) + { + GSList *slist; + + for (slist = tags_off; slist; slist = g_slist_next (slist)) + { + GtkTextTag *tag = slist->data; + + if (! g_list_find (remove_tags, tag) && + ! g_list_find (buffer->kerning_tags, tag)) + { + gtk_text_buffer_apply_tag (GTK_TEXT_BUFFER (buffer), tag, + &start, &iter); + } + } + + g_slist_free (tags_off); + } + + g_list_free (remove_tags); + g_list_free (insert_tags); + + if (gimp_text_buffer_get_iter_color (buffer, &start, &color)) + { + g_signal_emit (buffer, buffer_signals[COLOR_APPLIED], 0, &color); + } + + gtk_text_buffer_end_user_action (GTK_TEXT_BUFFER (buffer)); +} + +gint +gimp_text_buffer_get_iter_index (GimpTextBuffer *buffer, + GtkTextIter *iter, + gboolean layout_index) +{ + GtkTextIter start; + gchar *string; + gint index; + + g_return_val_if_fail (GIMP_IS_TEXT_BUFFER (buffer), 0); + + gtk_text_buffer_get_start_iter (GTK_TEXT_BUFFER (buffer), &start); + + string = gtk_text_buffer_get_text (GTK_TEXT_BUFFER (buffer), + &start, iter, TRUE); + index = strlen (string); + g_free (string); + + if (layout_index) + { + do + { + GSList *tags = gtk_text_iter_get_tags (&start); + GSList *list; + + for (list = tags; list; list = g_slist_next (list)) + { + GtkTextTag *tag = list->data; + + if (g_list_find (buffer->kerning_tags, tag)) + { + index += WORD_JOINER_LENGTH; + + break; + } + } + + g_slist_free (tags); + + gtk_text_iter_forward_char (&start); + + /* We might have moved too far */ + if (gtk_text_iter_compare (&start, iter) > 0) + start = *iter; + } + while (! gtk_text_iter_equal (&start, iter)); + } + + return index; +} + +void +gimp_text_buffer_get_iter_at_index (GimpTextBuffer *buffer, + GtkTextIter *iter, + gint index, + gboolean layout_index) +{ + GtkTextIter start; + GtkTextIter end; + gchar *string; + + g_return_if_fail (GIMP_IS_TEXT_BUFFER (buffer)); + + gtk_text_buffer_get_bounds (GTK_TEXT_BUFFER (buffer), &start, &end); + + string = gtk_text_buffer_get_text (GTK_TEXT_BUFFER (buffer), + &start, &end, TRUE); + + if (layout_index) + { + gchar *my_string = string; + gint my_index = 0; + gchar *tmp; + + do + { + GSList *tags = gtk_text_iter_get_tags (&start); + GSList *list; + + tmp = g_utf8_next_char (my_string); + my_index += (tmp - my_string); + my_string = tmp; + + for (list = tags; list; list = g_slist_next (list)) + { + GtkTextTag *tag = list->data; + + if (g_list_find (buffer->kerning_tags, tag)) + { + index = MAX (0, index - WORD_JOINER_LENGTH); + + break; + } + } + + g_slist_free (tags); + + gtk_text_iter_forward_char (&start); + + /* We might have moved too far */ + if (gtk_text_iter_compare (&start, &end) > 0) + start = end; + } + while (my_index < index && + ! gtk_text_iter_equal (&start, &end)); + } + + string[index] = '\0'; + + gtk_text_buffer_get_iter_at_offset (GTK_TEXT_BUFFER (buffer), iter, + g_utf8_strlen (string, -1)); + + g_free (string); +} + +gboolean +gimp_text_buffer_load (GimpTextBuffer *buffer, + GFile *file, + GError **error) +{ + GInputStream *input; + gchar buf[2048]; + gint to_read; + gsize bytes_read; + gsize total_read = 0; + gint remaining = 0; + GtkTextIter iter; + GError *my_error = NULL; + + g_return_val_if_fail (GIMP_IS_TEXT_BUFFER (buffer), FALSE); + g_return_val_if_fail (G_IS_FILE (file), FALSE); + g_return_val_if_fail (error == NULL || *error == NULL, FALSE); + + input = G_INPUT_STREAM (g_file_read (file, NULL, &my_error)); + if (! input) + { + g_set_error (error, my_error->domain, my_error->code, + _("Could not open '%s' for reading: %s"), + gimp_file_get_utf8_name (file), my_error->message); + g_clear_error (&my_error); + return FALSE; + } + + gtk_text_buffer_begin_user_action (GTK_TEXT_BUFFER (buffer)); + + gimp_text_buffer_set_text (buffer, NULL); + gtk_text_buffer_get_end_iter (GTK_TEXT_BUFFER (buffer), &iter); + + do + { + gboolean success; + const char *leftover; + + to_read = sizeof (buf) - remaining - 1; + + success = g_input_stream_read_all (input, buf + remaining, to_read, + &bytes_read, NULL, &my_error); + + total_read += bytes_read; + buf[bytes_read + remaining] = '\0'; + + g_utf8_validate (buf, bytes_read + remaining, &leftover); + + gtk_text_buffer_insert (GTK_TEXT_BUFFER (buffer), &iter, + buf, leftover - buf); + gtk_text_buffer_get_end_iter (GTK_TEXT_BUFFER (buffer), &iter); + + remaining = (buf + remaining + bytes_read) - leftover; + memmove (buf, leftover, remaining); + + if (! success) + { + if (total_read > 0) + { + g_message (_("Input file '%s' appears truncated: %s"), + gimp_file_get_utf8_name (file), + my_error->message); + g_clear_error (&my_error); + break; + } + + gtk_text_buffer_end_user_action (GTK_TEXT_BUFFER (buffer)); + g_object_unref (input); + + g_propagate_error (error, my_error); + + return FALSE; + } + } + while (remaining <= 6 && bytes_read == to_read); + + if (remaining) + g_message (_("Invalid UTF-8 data in file '%s'."), + gimp_file_get_utf8_name (file)); + + gtk_text_buffer_end_user_action (GTK_TEXT_BUFFER (buffer)); + g_object_unref (input); + + return TRUE; +} + +gboolean +gimp_text_buffer_save (GimpTextBuffer *buffer, + GFile *file, + gboolean selection_only, + GError **error) +{ + GOutputStream *output; + GtkTextIter start_iter; + GtkTextIter end_iter; + gchar *text_contents; + GError *my_error = NULL; + + g_return_val_if_fail (GIMP_IS_TEXT_BUFFER (buffer), FALSE); + g_return_val_if_fail (G_IS_FILE (file), FALSE); + g_return_val_if_fail (error == NULL || *error == NULL, FALSE); + + output = G_OUTPUT_STREAM (g_file_replace (file, + NULL, FALSE, G_FILE_CREATE_NONE, + NULL, error)); + if (! output) + return FALSE; + + if (selection_only) + gtk_text_buffer_get_selection_bounds (GTK_TEXT_BUFFER (buffer), + &start_iter, &end_iter); + else + gtk_text_buffer_get_bounds (GTK_TEXT_BUFFER (buffer), + &start_iter, &end_iter); + + text_contents = gtk_text_buffer_get_text (GTK_TEXT_BUFFER (buffer), + &start_iter, &end_iter, TRUE); + + if (text_contents) + { + gint text_length = strlen (text_contents); + + if (! g_output_stream_write_all (output, text_contents, text_length, + NULL, NULL, &my_error)) + { + GCancellable *cancellable = g_cancellable_new (); + + g_set_error (error, my_error->domain, my_error->code, + _("Writing text file '%s' failed: %s"), + gimp_file_get_utf8_name (file), my_error->message); + g_clear_error (&my_error); + g_free (text_contents); + + /* Cancel the overwrite initiated by g_file_replace(). */ + g_cancellable_cancel (cancellable); + g_output_stream_close (output, cancellable, NULL); + g_object_unref (cancellable); + g_object_unref (output); + + return FALSE; + } + + g_free (text_contents); + } + + g_object_unref (output); + + return TRUE; +} + +/** + * gimp_text_buffer_get_tags_on_iter: + * @buffer: a #GimpTextBuffer + * @iter: a position in @buffer + * + * Returns a list of tags that apply to @iter, in ascending order + * of priority (highest-priority tags are last). The GtkTextTag in + * the list don’t have a reference added, but you have to free the + * list itself. + * + * Returns: (element-type GtkTextTag) (transfer container): GList of #GtkTextTag + */ +GList * +gimp_text_buffer_get_tags_on_iter (GimpTextBuffer *buffer, + const GtkTextIter *iter) +{ + GList *result = NULL; + GSList *tag = NULL; + GSList *tags_list = NULL; + + g_return_val_if_fail (GIMP_IS_TEXT_BUFFER (buffer), NULL); + g_return_val_if_fail (iter != NULL, NULL); + g_return_val_if_fail (gtk_text_iter_get_buffer (iter) == GTK_TEXT_BUFFER (buffer), NULL); + + tags_list = gtk_text_iter_get_tags (iter); + for (tag = tags_list; tag != NULL; tag = g_slist_next (tag)) + { + result = g_list_prepend (result, tag->data); + } + g_slist_free (tags_list); + + result = g_list_reverse (result); + return result; +} + +/** + * gimp_text_buffer_get_all_tags: + * @buffer: a #GimpTextBuffer + * + * Returns a list of all tags for a @buffer, The GtkTextTag + * in the list don’t have a reference added, but you have to + * free the list itself. + * + * Returns: (element-type GtkTextTag) (transfer container): GList of #GtkTextTag + */ +GList * +gimp_text_buffer_get_all_tags (GimpTextBuffer *buffer) +{ + GList *result = NULL; + + g_return_val_if_fail (GIMP_IS_TEXT_BUFFER (buffer), NULL); + + result = g_list_prepend (result, buffer->bold_tag); + result = g_list_prepend (result, buffer->italic_tag); + result = g_list_prepend (result, buffer->underline_tag); + result = g_list_prepend (result, buffer->strikethrough_tag); + + result = g_list_concat (result, g_list_copy (buffer->size_tags)); + result = g_list_concat (result, g_list_copy (buffer->baseline_tags)); + result = g_list_concat (result, g_list_copy (buffer->kerning_tags)); + result = g_list_concat (result, g_list_copy (buffer->font_tags)); + result = g_list_concat (result, g_list_copy (buffer->color_tags)); + + return result; +} |