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Gimp/app/widgets/gimptextstyleeditor.c
Michael Natterer 839734463a Bug 694417 - GIMP Segmentation Faults (Segfault, Crash) after Changing Color... 
Don't pass a NULL pointer to gimp_text_buffer_get_font_tag() because
it is dereferenced in a call to strcmp().

gimp_context_get_font_name() returns NULL when the selected text
includes spans with different fonts. Add the same special handling for
spans with inconsistent sizes too, and add comments that we should
have the same for the color.

Original patch from Massimo Valentini.
(cherry picked from commit 804313bbec)
2013-04-21 17:54:32 +02:00

1302 lines
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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* GimpTextStyleEditor
* 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 <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpcolor/gimpcolor.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimp.h"
#include "core/gimpcontext.h"
#include "text/gimpfontlist.h"
#include "text/gimptext.h"
#include "gimpcolorpanel.h"
#include "gimpcontainerentry.h"
#include "gimpcontainerview.h"
#include "gimptextbuffer.h"
#include "gimptextstyleeditor.h"
#include "gimptexttag.h"
#include "gimp-intl.h"
enum
{
PROP_0,
PROP_GIMP,
PROP_TEXT,
PROP_BUFFER,
PROP_FONTS,
PROP_RESOLUTION_X,
PROP_RESOLUTION_Y
};
static void gimp_text_style_editor_constructed (GObject *object);
static void gimp_text_style_editor_dispose (GObject *object);
static void gimp_text_style_editor_finalize (GObject *object);
static void gimp_text_style_editor_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_text_style_editor_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static GtkWidget * gimp_text_style_editor_create_toggle (GimpTextStyleEditor *editor,
GtkTextTag *tag,
const gchar *stock_id,
const gchar *tooltip);
static void gimp_text_style_editor_clear_tags (GtkButton *button,
GimpTextStyleEditor *editor);
static void gimp_text_style_editor_font_changed (GimpContext *context,
GimpFont *font,
GimpTextStyleEditor *editor);
static void gimp_text_style_editor_set_font (GimpTextStyleEditor *editor,
GtkTextTag *font_tag);
static void gimp_text_style_editor_set_default_font (GimpTextStyleEditor *editor);
static void gimp_text_style_editor_color_changed (GimpColorButton *button,
GimpTextStyleEditor *editor);
static void gimp_text_style_editor_set_color (GimpTextStyleEditor *editor,
GtkTextTag *color_tag);
static void gimp_text_style_editor_set_default_color (GimpTextStyleEditor *editor);
static void gimp_text_style_editor_tag_toggled (GtkToggleButton *toggle,
GimpTextStyleEditor *editor);
static void gimp_text_style_editor_set_toggle (GimpTextStyleEditor *editor,
GtkToggleButton *toggle,
gboolean active);
static void gimp_text_style_editor_size_changed (GimpSizeEntry *entry,
GimpTextStyleEditor *editor);
static void gimp_text_style_editor_set_size (GimpTextStyleEditor *editor,
GtkTextTag *size_tag);
static void gimp_text_style_editor_set_default_size (GimpTextStyleEditor *editor);
static void gimp_text_style_editor_baseline_changed (GtkAdjustment *adjustment,
GimpTextStyleEditor *editor);
static void gimp_text_style_editor_set_baseline (GimpTextStyleEditor *editor,
GtkTextTag *baseline_tag);
static void gimp_text_style_editor_kerning_changed (GtkAdjustment *adjustment,
GimpTextStyleEditor *editor);
static void gimp_text_style_editor_set_kerning (GimpTextStyleEditor *editor,
GtkTextTag *kerning_tag);
static void gimp_text_style_editor_update (GimpTextStyleEditor *editor);
static gboolean gimp_text_style_editor_update_idle (GimpTextStyleEditor *editor);
G_DEFINE_TYPE (GimpTextStyleEditor, gimp_text_style_editor,
GTK_TYPE_BOX)
#define parent_class gimp_text_style_editor_parent_class
static void
gimp_text_style_editor_class_init (GimpTextStyleEditorClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->constructed = gimp_text_style_editor_constructed;
object_class->dispose = gimp_text_style_editor_dispose;
object_class->finalize = gimp_text_style_editor_finalize;
object_class->set_property = gimp_text_style_editor_set_property;
object_class->get_property = gimp_text_style_editor_get_property;
g_object_class_install_property (object_class, PROP_GIMP,
g_param_spec_object ("gimp",
NULL, NULL,
GIMP_TYPE_GIMP,
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class, PROP_TEXT,
g_param_spec_object ("text",
NULL, NULL,
GIMP_TYPE_TEXT,
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class, PROP_BUFFER,
g_param_spec_object ("buffer",
NULL, NULL,
GIMP_TYPE_TEXT_BUFFER,
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class, PROP_FONTS,
g_param_spec_object ("fonts",
NULL, NULL,
GIMP_TYPE_FONT_LIST,
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class, PROP_RESOLUTION_X,
g_param_spec_double ("resolution-x",
NULL, NULL,
GIMP_MIN_RESOLUTION,
GIMP_MAX_RESOLUTION,
1.0,
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
g_object_class_install_property (object_class, PROP_RESOLUTION_Y,
g_param_spec_double ("resolution-y",
NULL, NULL,
GIMP_MIN_RESOLUTION,
GIMP_MAX_RESOLUTION,
1.0,
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
}
static void
gimp_text_style_editor_init (GimpTextStyleEditor *editor)
{
GtkWidget *image;
GimpRGB color;
gtk_orientable_set_orientation (GTK_ORIENTABLE (editor),
GTK_ORIENTATION_VERTICAL);
gtk_box_set_spacing (GTK_BOX (editor), 2);
/* upper row */
editor->upper_hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2);
gtk_box_pack_start (GTK_BOX (editor), editor->upper_hbox, FALSE, FALSE, 0);
gtk_widget_show (editor->upper_hbox);
editor->font_entry = gimp_container_entry_new (NULL, NULL,
GIMP_VIEW_SIZE_SMALL, 1);
gtk_box_pack_start (GTK_BOX (editor->upper_hbox), editor->font_entry,
FALSE, FALSE, 0);
gtk_widget_show (editor->font_entry);
gimp_help_set_help_data (editor->font_entry,
_("Change font of selected text"), NULL);
editor->size_entry =
gimp_size_entry_new (1, 0, "%a", TRUE, FALSE, FALSE, 10,
GIMP_SIZE_ENTRY_UPDATE_SIZE);
gtk_table_set_col_spacing (GTK_TABLE (editor->size_entry), 1, 0);
gtk_box_pack_start (GTK_BOX (editor->upper_hbox), editor->size_entry,
FALSE, FALSE, 0);
gtk_widget_show (editor->size_entry);
gimp_help_set_help_data (editor->size_entry,
_("Change size of selected text"), NULL);
g_signal_connect (editor->size_entry, "value-changed",
G_CALLBACK (gimp_text_style_editor_size_changed),
editor);
/* lower row */
editor->lower_hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2);
gtk_box_pack_start (GTK_BOX (editor), editor->lower_hbox, FALSE, FALSE, 0);
gtk_widget_show (editor->lower_hbox);
editor->clear_button = gtk_button_new ();
gtk_widget_set_can_focus (editor->clear_button, FALSE);
gtk_box_pack_start (GTK_BOX (editor->lower_hbox), editor->clear_button,
FALSE, FALSE, 0);
gtk_widget_show (editor->clear_button);
gimp_help_set_help_data (editor->clear_button,
_("Clear style of selected text"), NULL);
g_signal_connect (editor->clear_button, "clicked",
G_CALLBACK (gimp_text_style_editor_clear_tags),
editor);
image = gtk_image_new_from_stock (GTK_STOCK_CLEAR, GTK_ICON_SIZE_MENU);
gtk_container_add (GTK_CONTAINER (editor->clear_button), image);
gtk_widget_show (image);
gimp_rgba_set (&color, 0.0, 0.0, 0.0, 1.0);
editor->color_button = gimp_color_panel_new (_("Change color of selected text"),
&color,
GIMP_COLOR_AREA_FLAT, 20, 20);
gtk_box_pack_end (GTK_BOX (editor->lower_hbox), editor->color_button,
FALSE, FALSE, 0);
gtk_widget_show (editor->color_button);
gimp_help_set_help_data (editor->color_button,
_("Change color of selected text"), NULL);
g_signal_connect (editor->color_button, "color-changed",
G_CALLBACK (gimp_text_style_editor_color_changed),
editor);
editor->kerning_adjustment =
GTK_ADJUSTMENT (gtk_adjustment_new (0.0, -1000.0, 1000.0, 1.0, 10.0, 0.0));
editor->kerning_spinbutton = gtk_spin_button_new (editor->kerning_adjustment,
1.0, 1);
gtk_entry_set_width_chars (GTK_ENTRY (editor->kerning_spinbutton), 5);
gtk_box_pack_end (GTK_BOX (editor->lower_hbox), editor->kerning_spinbutton,
FALSE, FALSE, 0);
gtk_widget_show (editor->kerning_spinbutton);
gimp_help_set_help_data (editor->kerning_spinbutton,
_("Change kerning of selected text"), NULL);
g_signal_connect (editor->kerning_adjustment, "value-changed",
G_CALLBACK (gimp_text_style_editor_kerning_changed),
editor);
editor->baseline_adjustment =
GTK_ADJUSTMENT (gtk_adjustment_new (0.0, -1000.0, 1000.0, 1.0, 10.0, 0.0));
editor->baseline_spinbutton = gtk_spin_button_new (editor->baseline_adjustment,
1.0, 1);
gtk_entry_set_width_chars (GTK_ENTRY (editor->baseline_spinbutton), 5);
gtk_box_pack_end (GTK_BOX (editor->lower_hbox), editor->baseline_spinbutton,
FALSE, FALSE, 0);
gtk_widget_show (editor->baseline_spinbutton);
gimp_help_set_help_data (editor->baseline_spinbutton,
_("Change baseline of selected text"), NULL);
g_signal_connect (editor->baseline_adjustment, "value-changed",
G_CALLBACK (gimp_text_style_editor_baseline_changed),
editor);
}
static void
gimp_text_style_editor_constructed (GObject *object)
{
GimpTextStyleEditor *editor = GIMP_TEXT_STYLE_EDITOR (object);
if (G_OBJECT_CLASS (parent_class)->constructed)
G_OBJECT_CLASS (parent_class)->constructed (object);
g_assert (GIMP_IS_GIMP (editor->gimp));
g_assert (GIMP_IS_FONT_LIST (editor->fonts));
g_assert (GIMP_IS_TEXT (editor->text));
g_assert (GIMP_IS_TEXT_BUFFER (editor->buffer));
editor->context = gimp_context_new (editor->gimp, "text style editor", NULL);
g_signal_connect (editor->context, "font-changed",
G_CALLBACK (gimp_text_style_editor_font_changed),
editor);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (editor->size_entry), 0,
editor->resolution_y, TRUE);
/* use the global user context so we get the global FG/BG colors */
gimp_color_panel_set_context (GIMP_COLOR_PANEL (editor->color_button),
gimp_get_user_context (editor->gimp));
gimp_container_view_set_container (GIMP_CONTAINER_VIEW (editor->font_entry),
editor->fonts);
gimp_container_view_set_context (GIMP_CONTAINER_VIEW (editor->font_entry),
editor->context);
gimp_text_style_editor_create_toggle (editor, editor->buffer->bold_tag,
GTK_STOCK_BOLD,
_("Bold"));
gimp_text_style_editor_create_toggle (editor, editor->buffer->italic_tag,
GTK_STOCK_ITALIC,
_("Italic"));
gimp_text_style_editor_create_toggle (editor, editor->buffer->underline_tag,
GTK_STOCK_UNDERLINE,
_("Underline"));
gimp_text_style_editor_create_toggle (editor, editor->buffer->strikethrough_tag,
GTK_STOCK_STRIKETHROUGH,
_("Strikethrough"));
g_signal_connect_swapped (editor->text, "notify::font",
G_CALLBACK (gimp_text_style_editor_update),
editor);
g_signal_connect_swapped (editor->text, "notify::font-size",
G_CALLBACK (gimp_text_style_editor_update),
editor);
g_signal_connect_swapped (editor->text, "notify::font-size-unit",
G_CALLBACK (gimp_text_style_editor_update),
editor);
g_signal_connect_swapped (editor->text, "notify::color",
G_CALLBACK (gimp_text_style_editor_update),
editor);
g_signal_connect_data (editor->buffer, "changed",
G_CALLBACK (gimp_text_style_editor_update),
editor, 0,
G_CONNECT_AFTER | G_CONNECT_SWAPPED);
g_signal_connect_data (editor->buffer, "apply-tag",
G_CALLBACK (gimp_text_style_editor_update),
editor, 0,
G_CONNECT_AFTER | G_CONNECT_SWAPPED);
g_signal_connect_data (editor->buffer, "remove-tag",
G_CALLBACK (gimp_text_style_editor_update),
editor, 0,
G_CONNECT_AFTER | G_CONNECT_SWAPPED);
g_signal_connect_data (editor->buffer, "mark-set",
G_CALLBACK (gimp_text_style_editor_update),
editor, 0,
G_CONNECT_AFTER | G_CONNECT_SWAPPED);
gimp_text_style_editor_update (editor);
}
static void
gimp_text_style_editor_dispose (GObject *object)
{
GimpTextStyleEditor *editor = GIMP_TEXT_STYLE_EDITOR (object);
if (editor->text)
{
g_signal_handlers_disconnect_by_func (editor->text,
gimp_text_style_editor_update,
editor);
}
if (editor->buffer)
{
g_signal_handlers_disconnect_by_func (editor->buffer,
gimp_text_style_editor_update,
editor);
}
if (editor->update_idle_id)
{
g_source_remove (editor->update_idle_id);
editor->update_idle_id = 0;
}
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gimp_text_style_editor_finalize (GObject *object)
{
GimpTextStyleEditor *editor = GIMP_TEXT_STYLE_EDITOR (object);
if (editor->context)
{
g_object_unref (editor->context);
editor->context = NULL;
}
if (editor->text)
{
g_object_unref (editor->text);
editor->text = NULL;
}
if (editor->buffer)
{
g_object_unref (editor->buffer);
editor->buffer = NULL;
}
if (editor->fonts)
{
g_object_unref (editor->fonts);
editor->fonts = NULL;
}
if (editor->toggles)
{
g_list_free (editor->toggles);
editor->toggles = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_text_style_editor_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpTextStyleEditor *editor = GIMP_TEXT_STYLE_EDITOR (object);
switch (property_id)
{
case PROP_GIMP:
editor->gimp = g_value_get_object (value); /* don't ref */
break;
case PROP_TEXT:
editor->text = g_value_dup_object (value);
break;
case PROP_BUFFER:
editor->buffer = g_value_dup_object (value);
break;
case PROP_FONTS:
editor->fonts = g_value_dup_object (value);
break;
case PROP_RESOLUTION_X:
editor->resolution_x = g_value_get_double (value);
break;
case PROP_RESOLUTION_Y:
editor->resolution_y = g_value_get_double (value);
if (editor->size_entry)
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (editor->size_entry), 0,
editor->resolution_y, TRUE);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_text_style_editor_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpTextStyleEditor *editor = GIMP_TEXT_STYLE_EDITOR (object);
switch (property_id)
{
case PROP_GIMP:
g_value_set_object (value, editor->gimp);
break;
case PROP_TEXT:
g_value_set_object (value, editor->text);
break;
case PROP_BUFFER:
g_value_set_object (value, editor->buffer);
break;
case PROP_FONTS:
g_value_set_object (value, editor->fonts);
break;
case PROP_RESOLUTION_X:
g_value_set_double (value, editor->resolution_x);
break;
case PROP_RESOLUTION_Y:
g_value_set_double (value, editor->resolution_y);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
/* public functions */
GtkWidget *
gimp_text_style_editor_new (Gimp *gimp,
GimpText *text,
GimpTextBuffer *buffer,
GimpContainer *fonts,
gdouble resolution_x,
gdouble resolution_y)
{
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
g_return_val_if_fail (GIMP_IS_TEXT (text), NULL);
g_return_val_if_fail (GIMP_IS_TEXT_BUFFER (buffer), NULL);
g_return_val_if_fail (resolution_x > 0.0, NULL);
g_return_val_if_fail (resolution_y > 0.0, NULL);
return g_object_new (GIMP_TYPE_TEXT_STYLE_EDITOR,
"gimp", gimp,
"text", text,
"buffer", buffer,
"fonts", fonts,
"resolution-x", resolution_x,
"resolution-y", resolution_y,
NULL);
}
GList *
gimp_text_style_editor_list_tags (GimpTextStyleEditor *editor,
GList **remove_tags)
{
GList *toggles;
GList *tags = NULL;
g_return_val_if_fail (GIMP_IS_TEXT_STYLE_EDITOR (editor), NULL);
g_return_val_if_fail (remove_tags != NULL, NULL);
*remove_tags = NULL;
for (toggles = editor->toggles; toggles; toggles = g_list_next (toggles))
{
GtkTextTag *tag = g_object_get_data (toggles->data, "tag");
if (gtk_toggle_button_get_active (toggles->data))
{
tags = g_list_prepend (tags, tag);
}
else
{
*remove_tags = g_list_prepend (*remove_tags, tag);
}
}
{
GList *list;
gdouble pixels;
for (list = editor->buffer->size_tags; list; list = g_list_next (list))
*remove_tags = g_list_prepend (*remove_tags, list->data);
pixels = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (editor->size_entry), 0);
if (pixels != 0.0)
{
GtkTextTag *tag;
gdouble points;
points = gimp_units_to_points (pixels,
GIMP_UNIT_PIXEL,
editor->resolution_y);
tag = gimp_text_buffer_get_size_tag (editor->buffer,
PANGO_SCALE * points);
tags = g_list_prepend (tags, tag);
}
}
{
GList *list;
const gchar *font_name;
for (list = editor->buffer->font_tags; list; list = g_list_next (list))
*remove_tags = g_list_prepend (*remove_tags, list->data);
font_name = gimp_context_get_font_name (editor->context);
if (font_name)
{
GtkTextTag *tag;
tag = gimp_text_buffer_get_font_tag (editor->buffer, font_name);
tags = g_list_prepend (tags, tag);
}
}
{
GList *list;
GimpRGB color;
for (list = editor->buffer->color_tags; list; list = g_list_next (list))
*remove_tags = g_list_prepend (*remove_tags, list->data);
gimp_color_button_get_color (GIMP_COLOR_BUTTON (editor->color_button),
&color);
if (TRUE) /* FIXME should have "inconsistent" state as for font and size */
{
GtkTextTag *tag;
tag = gimp_text_buffer_get_color_tag (editor->buffer, &color);
tags = g_list_prepend (tags, tag);
}
}
*remove_tags = g_list_reverse (*remove_tags);
return g_list_reverse (tags);
}
/* private functions */
static GtkWidget *
gimp_text_style_editor_create_toggle (GimpTextStyleEditor *editor,
GtkTextTag *tag,
const gchar *stock_id,
const gchar *tooltip)
{
GtkWidget *toggle;
GtkWidget *image;
toggle = gtk_toggle_button_new ();
gtk_widget_set_can_focus (toggle, FALSE);
gtk_box_pack_start (GTK_BOX (editor->lower_hbox), toggle, FALSE, FALSE, 0);
gtk_widget_show (toggle);
gimp_help_set_help_data (toggle, tooltip, NULL);
editor->toggles = g_list_append (editor->toggles, toggle);
g_object_set_data (G_OBJECT (toggle), "tag", tag);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_text_style_editor_tag_toggled),
editor);
image = gtk_image_new_from_stock (stock_id, GTK_ICON_SIZE_MENU);
gtk_container_add (GTK_CONTAINER (toggle), image);
gtk_widget_show (image);
return toggle;
}
static void
gimp_text_style_editor_clear_tags (GtkButton *button,
GimpTextStyleEditor *editor)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (editor->buffer);
if (gtk_text_buffer_get_has_selection (buffer))
{
GtkTextIter start, end;
gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
gtk_text_buffer_begin_user_action (buffer);
gtk_text_buffer_remove_all_tags (buffer, &start, &end);
gtk_text_buffer_end_user_action (buffer);
}
}
static void
gimp_text_style_editor_font_changed (GimpContext *context,
GimpFont *font,
GimpTextStyleEditor *editor)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (editor->buffer);
GList *insert_tags;
GList *remove_tags;
if (gtk_text_buffer_get_has_selection (buffer))
{
GtkTextIter start, end;
gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
gimp_text_buffer_set_font (editor->buffer, &start, &end,
gimp_context_get_font_name (context));
}
insert_tags = gimp_text_style_editor_list_tags (editor, &remove_tags);
gimp_text_buffer_set_insert_tags (editor->buffer, insert_tags, remove_tags);
}
static void
gimp_text_style_editor_set_font (GimpTextStyleEditor *editor,
GtkTextTag *font_tag)
{
gchar *font = NULL;
if (font_tag)
font = gimp_text_tag_get_font (font_tag);
g_signal_handlers_block_by_func (editor->context,
gimp_text_style_editor_font_changed,
editor);
gimp_context_set_font_name (editor->context, font);
g_signal_handlers_unblock_by_func (editor->context,
gimp_text_style_editor_font_changed,
editor);
g_free (font);
}
static void
gimp_text_style_editor_set_default_font (GimpTextStyleEditor *editor)
{
g_signal_handlers_block_by_func (editor->context,
gimp_text_style_editor_font_changed,
editor);
gimp_context_set_font_name (editor->context, editor->text->font);
g_signal_handlers_unblock_by_func (editor->context,
gimp_text_style_editor_font_changed,
editor);
}
static void
gimp_text_style_editor_color_changed (GimpColorButton *button,
GimpTextStyleEditor *editor)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (editor->buffer);
GList *insert_tags;
GList *remove_tags;
if (gtk_text_buffer_get_has_selection (buffer))
{
GtkTextIter start, end;
GimpRGB color;
gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
gimp_color_button_get_color (button, &color);
gimp_text_buffer_set_color (editor->buffer, &start, &end, &color);
}
insert_tags = gimp_text_style_editor_list_tags (editor, &remove_tags);
gimp_text_buffer_set_insert_tags (editor->buffer, insert_tags, remove_tags);
}
static void
gimp_text_style_editor_set_color (GimpTextStyleEditor *editor,
GtkTextTag *color_tag)
{
GimpRGB color;
gimp_rgba_set (&color, 0.0, 0.0, 0.0, 1.0);
if (color_tag)
gimp_text_tag_get_color (color_tag, &color);
g_signal_handlers_block_by_func (editor->color_button,
gimp_text_style_editor_color_changed,
editor);
gimp_color_button_set_color (GIMP_COLOR_BUTTON (editor->color_button),
&color);
/* FIXME should have "inconsistent" state as for font and size */
g_signal_handlers_unblock_by_func (editor->color_button,
gimp_text_style_editor_color_changed,
editor);
}
static void
gimp_text_style_editor_set_default_color (GimpTextStyleEditor *editor)
{
g_signal_handlers_block_by_func (editor->color_button,
gimp_text_style_editor_color_changed,
editor);
gimp_color_button_set_color (GIMP_COLOR_BUTTON (editor->color_button),
&editor->text->color);
g_signal_handlers_unblock_by_func (editor->color_button,
gimp_text_style_editor_color_changed,
editor);
}
static void
gimp_text_style_editor_tag_toggled (GtkToggleButton *toggle,
GimpTextStyleEditor *editor)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (editor->buffer);
GtkTextTag *tag = g_object_get_data (G_OBJECT (toggle), "tag");
GList *insert_tags;
GList *remove_tags;
if (gtk_text_buffer_get_has_selection (buffer))
{
GtkTextIter start, end;
gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
gtk_text_buffer_begin_user_action (buffer);
if (gtk_toggle_button_get_active (toggle))
{
gtk_text_buffer_apply_tag (buffer, tag, &start, &end);
}
else
{
gtk_text_buffer_remove_tag (buffer, tag, &start, &end);
}
gtk_text_buffer_end_user_action (buffer);
}
insert_tags = gimp_text_style_editor_list_tags (editor, &remove_tags);
gimp_text_buffer_set_insert_tags (editor->buffer, insert_tags, remove_tags);
}
static void
gimp_text_style_editor_set_toggle (GimpTextStyleEditor *editor,
GtkToggleButton *toggle,
gboolean active)
{
g_signal_handlers_block_by_func (toggle,
gimp_text_style_editor_tag_toggled,
editor);
gtk_toggle_button_set_active (toggle, active);
g_signal_handlers_unblock_by_func (toggle,
gimp_text_style_editor_tag_toggled,
editor);
}
static void
gimp_text_style_editor_size_changed (GimpSizeEntry *entry,
GimpTextStyleEditor *editor)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (editor->buffer);
GList *insert_tags;
GList *remove_tags;
if (gtk_text_buffer_get_has_selection (buffer))
{
GtkTextIter start, end;
gdouble points;
gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
points = gimp_units_to_points (gimp_size_entry_get_refval (entry, 0),
GIMP_UNIT_PIXEL,
editor->resolution_y);
gimp_text_buffer_set_size (editor->buffer, &start, &end,
PANGO_SCALE * points);
}
insert_tags = gimp_text_style_editor_list_tags (editor, &remove_tags);
gimp_text_buffer_set_insert_tags (editor->buffer, insert_tags, remove_tags);
}
static void
gimp_text_style_editor_set_size (GimpTextStyleEditor *editor,
GtkTextTag *size_tag)
{
gint size = 0;
gdouble pixels;
if (size_tag)
size = gimp_text_tag_get_size (size_tag);
g_signal_handlers_block_by_func (editor->size_entry,
gimp_text_style_editor_size_changed,
editor);
pixels = gimp_units_to_pixels ((gdouble) size / PANGO_SCALE,
GIMP_UNIT_POINT,
editor->resolution_y);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (editor->size_entry), 0, pixels);
if (size == 0)
{
GtkWidget *spinbutton;
spinbutton = gimp_size_entry_get_help_widget (GIMP_SIZE_ENTRY (editor->size_entry), 0);
gtk_entry_set_text (GTK_ENTRY (spinbutton), "");
}
g_signal_handlers_unblock_by_func (editor->size_entry,
gimp_text_style_editor_size_changed,
editor);
}
static void
gimp_text_style_editor_set_default_size (GimpTextStyleEditor *editor)
{
gdouble pixels = gimp_units_to_pixels (editor->text->font_size,
editor->text->unit,
editor->resolution_y);
g_signal_handlers_block_by_func (editor->size_entry,
gimp_text_style_editor_size_changed,
editor);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (editor->size_entry), 0, pixels);
g_signal_handlers_unblock_by_func (editor->size_entry,
gimp_text_style_editor_size_changed,
editor);
}
static void
gimp_text_style_editor_baseline_changed (GtkAdjustment *adjustment,
GimpTextStyleEditor *editor)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (editor->buffer);
GtkTextIter start, end;
if (! gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
{
gtk_text_buffer_get_iter_at_mark (buffer, &start,
gtk_text_buffer_get_insert (buffer));
gtk_text_buffer_get_end_iter (buffer, &end);
}
gimp_text_buffer_set_baseline (editor->buffer, &start, &end,
gtk_adjustment_get_value (adjustment) *
PANGO_SCALE);
}
static void
gimp_text_style_editor_set_baseline (GimpTextStyleEditor *editor,
GtkTextTag *baseline_tag)
{
gint baseline = 0;
if (baseline_tag)
baseline = gimp_text_tag_get_baseline (baseline_tag);
g_signal_handlers_block_by_func (editor->baseline_adjustment,
gimp_text_style_editor_baseline_changed,
editor);
gtk_adjustment_set_value (editor->baseline_adjustment,
(gdouble) baseline / PANGO_SCALE);
/* make sure the "" really gets replaced */
gtk_adjustment_value_changed (editor->baseline_adjustment);
g_signal_handlers_unblock_by_func (editor->baseline_adjustment,
gimp_text_style_editor_baseline_changed,
editor);
}
static void
gimp_text_style_editor_kerning_changed (GtkAdjustment *adjustment,
GimpTextStyleEditor *editor)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (editor->buffer);
GtkTextIter start, end;
if (! gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
{
gtk_text_buffer_get_iter_at_mark (buffer, &start,
gtk_text_buffer_get_insert (buffer));
end = start;
gtk_text_iter_forward_char (&end);
}
gimp_text_buffer_set_kerning (editor->buffer, &start, &end,
gtk_adjustment_get_value (adjustment) *
PANGO_SCALE);
}
static void
gimp_text_style_editor_set_kerning (GimpTextStyleEditor *editor,
GtkTextTag *kerning_tag)
{
gint kerning = 0;
if (kerning_tag)
kerning = gimp_text_tag_get_kerning (kerning_tag);
g_signal_handlers_block_by_func (editor->kerning_adjustment,
gimp_text_style_editor_kerning_changed,
editor);
gtk_adjustment_set_value (editor->kerning_adjustment,
(gdouble) kerning / PANGO_SCALE);
/* make sure the "" really gets replaced */
gtk_adjustment_value_changed (editor->kerning_adjustment);
g_signal_handlers_unblock_by_func (editor->kerning_adjustment,
gimp_text_style_editor_kerning_changed,
editor);
}
static void
gimp_text_style_editor_update (GimpTextStyleEditor *editor)
{
if (editor->update_idle_id)
g_source_remove (editor->update_idle_id);
editor->update_idle_id =
gdk_threads_add_idle ((GSourceFunc) gimp_text_style_editor_update_idle,
editor);
}
static gboolean
gimp_text_style_editor_update_idle (GimpTextStyleEditor *editor)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (editor->buffer);
if (editor->update_idle_id)
{
g_source_remove (editor->update_idle_id);
editor->update_idle_id = 0;
}
if (gtk_text_buffer_get_has_selection (buffer))
{
GtkTextIter start, end;
GtkTextIter iter;
GList *list;
gboolean any_toggle_active = TRUE;
gboolean font_differs = FALSE;
gboolean color_differs = FALSE;
gboolean size_differs = FALSE;
gboolean baseline_differs = FALSE;
gboolean kerning_differs = FALSE;
GtkTextTag *font_tag = NULL;
GtkTextTag *color_tag = NULL;
GtkTextTag *size_tag = NULL;
GtkTextTag *baseline_tag = NULL;
GtkTextTag *kerning_tag = NULL;
gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
gtk_text_iter_order (&start, &end);
/* first, switch all toggles on */
for (list = editor->toggles; list; list = g_list_next (list))
{
GtkToggleButton *toggle = list->data;
gimp_text_style_editor_set_toggle (editor, toggle, TRUE);
}
/* and get some initial values */
font_tag = gimp_text_buffer_get_iter_font (editor->buffer,
&start, NULL);
color_tag = gimp_text_buffer_get_iter_color (editor->buffer,
&start, NULL);
size_tag = gimp_text_buffer_get_iter_size (editor->buffer,
&start, NULL);
baseline_tag = gimp_text_buffer_get_iter_baseline (editor->buffer,
&start, NULL);
kerning_tag = gimp_text_buffer_get_iter_kerning (editor->buffer,
&start, NULL);
for (iter = start;
gtk_text_iter_in_range (&iter, &start, &end);
gtk_text_iter_forward_cursor_position (&iter))
{
if (any_toggle_active)
{
any_toggle_active = FALSE;
for (list = editor->toggles; list; list = g_list_next (list))
{
GtkToggleButton *toggle = list->data;
GtkTextTag *tag = g_object_get_data (G_OBJECT (toggle),
"tag");
if (! gtk_text_iter_has_tag (&iter, tag))
{
gimp_text_style_editor_set_toggle (editor, toggle, FALSE);
}
else
{
any_toggle_active = TRUE;
}
}
}
if (! font_differs)
{
GtkTextTag *tag;
tag = gimp_text_buffer_get_iter_font (editor->buffer, &iter,
NULL);
if (tag != font_tag)
font_differs = TRUE;
}
if (! color_differs)
{
GtkTextTag *tag;
tag = gimp_text_buffer_get_iter_color (editor->buffer, &iter,
NULL);
if (tag != color_tag)
color_differs = TRUE;
}
if (! size_differs)
{
GtkTextTag *tag;
tag = gimp_text_buffer_get_iter_size (editor->buffer, &iter,
NULL);
if (tag != size_tag)
size_differs = TRUE;
}
if (! baseline_differs)
{
GtkTextTag *tag;
tag = gimp_text_buffer_get_iter_baseline (editor->buffer, &iter,
NULL);
if (tag != baseline_tag)
baseline_differs = TRUE;
}
if (! kerning_differs)
{
GtkTextTag *tag;
tag = gimp_text_buffer_get_iter_kerning (editor->buffer, &iter,
NULL);
if (tag != kerning_tag)
kerning_differs = TRUE;
}
if (! any_toggle_active &&
color_differs &&
font_differs &&
size_differs &&
baseline_differs &&
kerning_differs)
break;
}
if (font_differs)
gimp_text_style_editor_set_font (editor, NULL);
else if (font_tag)
gimp_text_style_editor_set_font (editor, font_tag);
else
gimp_text_style_editor_set_default_font (editor);
if (color_differs)
gimp_text_style_editor_set_color (editor, NULL);
else if (color_tag)
gimp_text_style_editor_set_color (editor, color_tag);
else
gimp_text_style_editor_set_default_color (editor);
if (size_differs)
gimp_text_style_editor_set_size (editor, NULL);
else if (size_tag)
gimp_text_style_editor_set_size (editor, size_tag);
else
gimp_text_style_editor_set_default_size (editor);
if (baseline_differs)
gtk_entry_set_text (GTK_ENTRY (editor->baseline_spinbutton), "");
else
gimp_text_style_editor_set_baseline (editor, baseline_tag);
if (kerning_differs)
gtk_entry_set_text (GTK_ENTRY (editor->kerning_spinbutton), "");
else
gimp_text_style_editor_set_kerning (editor, kerning_tag);
}
else /* no selection */
{
GtkTextIter cursor;
GSList *tags;
GSList *tags_on;
GSList *tags_off;
GList *list;
gtk_text_buffer_get_iter_at_mark (buffer, &cursor,
gtk_text_buffer_get_insert (buffer));
tags = gtk_text_iter_get_tags (&cursor);
tags_on = gtk_text_iter_get_toggled_tags (&cursor, TRUE);
tags_off = gtk_text_iter_get_toggled_tags (&cursor, FALSE);
for (list = editor->buffer->font_tags; list; list = g_list_next (list))
{
GtkTextTag *tag = list->data;
if ((g_slist_find (tags, tag) &&
! g_slist_find (tags_on, tag)) ||
g_slist_find (tags_off, tag))
{
gimp_text_style_editor_set_font (editor, tag);
break;
}
}
if (! list)
gimp_text_style_editor_set_default_font (editor);
for (list = editor->buffer->color_tags; list; list = g_list_next (list))
{
GtkTextTag *tag = list->data;
if ((g_slist_find (tags, tag) &&
! g_slist_find (tags_on, tag)) ||
g_slist_find (tags_off, tag))
{
gimp_text_style_editor_set_color (editor, tag);
break;
}
}
if (! list)
gimp_text_style_editor_set_default_color (editor);
for (list = editor->buffer->size_tags; list; list = g_list_next (list))
{
GtkTextTag *tag = list->data;
if ((g_slist_find (tags, tag) &&
! g_slist_find (tags_on, tag)) ||
g_slist_find (tags_off, tag))
{
gimp_text_style_editor_set_size (editor, tag);
break;
}
}
if (! list)
gimp_text_style_editor_set_default_size (editor);
for (list = editor->buffer->baseline_tags; list; list = g_list_next (list))
{
GtkTextTag *tag = list->data;
if ((g_slist_find (tags, tag) &&
! g_slist_find (tags_on, tag)) ||
g_slist_find (tags_off, tag))
{
gimp_text_style_editor_set_baseline (editor, tag);
break;
}
}
if (! list)
gimp_text_style_editor_set_baseline (editor, NULL);
for (list = editor->toggles; list; list = g_list_next (list))
{
GtkToggleButton *toggle = list->data;
GtkTextTag *tag = g_object_get_data (G_OBJECT (toggle),
"tag");
gimp_text_style_editor_set_toggle (editor, toggle,
(g_slist_find (tags, tag) &&
! g_slist_find (tags_on, tag)) ||
g_slist_find (tags_off, tag));
}
{
GtkTextTag *tag;
tag = gimp_text_buffer_get_iter_kerning (editor->buffer, &cursor, NULL);
gimp_text_style_editor_set_kerning (editor, tag);
}
g_slist_free (tags);
g_slist_free (tags_on);
g_slist_free (tags_off);
}
return FALSE;
}
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