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PIKApp/app/widgets/pikatextstyleeditor.c

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Initial checkin of Pika from heckimp
2023-09-26 00:35:21 +02:00
/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* PikaTextStyleEditor
* 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 <gegl.h>
#include <gtk/gtk.h>
#include "libpikabase/pikabase.h"
#include "libpikacolor/pikacolor.h"
#include "libpikawidgets/pikawidgets.h"
#include "widgets-types.h"
#include "core/pika.h"
#include "core/pikacontainer.h"
#include "core/pikacontext.h"
#include "text/pikatext.h"
#include "text/pikafont.h"
#include "pikacolorpanel.h"
#include "pikacontainerentry.h"
#include "pikacontainerview.h"
#include "pikatextbuffer.h"
#include "pikatextstyleeditor.h"
#include "pikatexttag.h"
#include "pikawidgets-utils.h"
#include "pika-intl.h"
enum
{
PROP_0,
PROP_PIKA,
PROP_TEXT,
PROP_BUFFER,
PROP_FONTS,
PROP_RESOLUTION_X,
PROP_RESOLUTION_Y
};
static void pika_text_style_editor_constructed (GObject *object);
static void pika_text_style_editor_dispose (GObject *object);
static void pika_text_style_editor_finalize (GObject *object);
static void pika_text_style_editor_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void pika_text_style_editor_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static GtkWidget * pika_text_style_editor_create_toggle (PikaTextStyleEditor *editor,
GtkTextTag *tag,
const gchar *icon_name,
const gchar *tooltip);
static void pika_text_style_editor_clear_tags (GtkButton *button,
PikaTextStyleEditor *editor);
static void pika_text_style_editor_font_changed (PikaContext *context,
PikaFont *font,
PikaTextStyleEditor *editor);
static void pika_text_style_editor_set_font (PikaTextStyleEditor *editor,
GtkTextTag *font_tag);
static void pika_text_style_editor_set_default_font (PikaTextStyleEditor *editor);
static void pika_text_style_editor_color_changed (PikaColorButton *button,
PikaTextStyleEditor *editor);
static void pika_text_style_editor_set_color (PikaTextStyleEditor *editor,
GtkTextTag *color_tag);
static void pika_text_style_editor_set_default_color (PikaTextStyleEditor *editor);
static void pika_text_style_editor_tag_toggled (GtkToggleButton *toggle,
PikaTextStyleEditor *editor);
static void pika_text_style_editor_set_toggle (PikaTextStyleEditor *editor,
GtkToggleButton *toggle,
gboolean active);
static void pika_text_style_editor_size_changed (PikaSizeEntry *entry,
PikaTextStyleEditor *editor);
static void pika_text_style_editor_set_size (PikaTextStyleEditor *editor,
GtkTextTag *size_tag);
static void pika_text_style_editor_set_default_size (PikaTextStyleEditor *editor);
static void pika_text_style_editor_baseline_changed (GtkAdjustment *adjustment,
PikaTextStyleEditor *editor);
static void pika_text_style_editor_set_baseline (PikaTextStyleEditor *editor,
GtkTextTag *baseline_tag);
static void pika_text_style_editor_kerning_changed (GtkAdjustment *adjustment,
PikaTextStyleEditor *editor);
static void pika_text_style_editor_set_kerning (PikaTextStyleEditor *editor,
GtkTextTag *kerning_tag);
static void pika_text_style_editor_update (PikaTextStyleEditor *editor);
static gboolean pika_text_style_editor_update_idle (PikaTextStyleEditor *editor);
G_DEFINE_TYPE (PikaTextStyleEditor, pika_text_style_editor,
GTK_TYPE_BOX)
#define parent_class pika_text_style_editor_parent_class
static void
pika_text_style_editor_class_init (PikaTextStyleEditorClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
object_class->constructed = pika_text_style_editor_constructed;
object_class->dispose = pika_text_style_editor_dispose;
object_class->finalize = pika_text_style_editor_finalize;
object_class->set_property = pika_text_style_editor_set_property;
object_class->get_property = pika_text_style_editor_get_property;
g_object_class_install_property (object_class, PROP_PIKA,
g_param_spec_object ("pika",
NULL, NULL,
PIKA_TYPE_PIKA,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class, PROP_TEXT,
g_param_spec_object ("text",
NULL, NULL,
PIKA_TYPE_TEXT,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class, PROP_BUFFER,
g_param_spec_object ("buffer",
NULL, NULL,
PIKA_TYPE_TEXT_BUFFER,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class, PROP_FONTS,
g_param_spec_object ("fonts",
NULL, NULL,
PIKA_TYPE_CONTAINER,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class, PROP_RESOLUTION_X,
g_param_spec_double ("resolution-x",
NULL, NULL,
PIKA_MIN_RESOLUTION,
PIKA_MAX_RESOLUTION,
1.0,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
g_object_class_install_property (object_class, PROP_RESOLUTION_Y,
g_param_spec_double ("resolution-y",
NULL, NULL,
PIKA_MIN_RESOLUTION,
PIKA_MAX_RESOLUTION,
1.0,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
gtk_widget_class_set_css_name (widget_class, "PikaTextStyleEditor");
}
static void
pika_text_style_editor_init (PikaTextStyleEditor *editor)
{
GtkWidget *image;
PikaRGB 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 = pika_container_entry_new (NULL, NULL,
PIKA_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);
pika_help_set_help_data (editor->font_entry,
_("Change font of selected text"), NULL);
editor->size_entry =
pika_size_entry_new (1, 0, "%a", TRUE, FALSE, FALSE, 10,
PIKA_SIZE_ENTRY_UPDATE_SIZE);
gtk_box_pack_start (GTK_BOX (editor->upper_hbox), editor->size_entry,
FALSE, FALSE, 0);
gtk_widget_show (editor->size_entry);
pika_help_set_help_data (editor->size_entry,
_("Change size of selected text"), NULL);
g_signal_connect (editor->size_entry, "value-changed",
G_CALLBACK (pika_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);
pika_help_set_help_data (editor->clear_button,
_("Clear style of selected text"), NULL);
g_signal_connect (editor->clear_button, "clicked",
G_CALLBACK (pika_text_style_editor_clear_tags),
editor);
image = gtk_image_new_from_icon_name ("edit-clear", GTK_ICON_SIZE_MENU);
gtk_container_add (GTK_CONTAINER (editor->clear_button), image);
gtk_widget_show (image);
pika_rgba_set (&color, 0.0, 0.0, 0.0, 1.0);
editor->color_button = pika_color_panel_new (_("Change color of selected text"),
&color,
PIKA_COLOR_AREA_FLAT, 20, 20);
pika_widget_set_fully_opaque (editor->color_button, TRUE);
gtk_box_pack_end (GTK_BOX (editor->lower_hbox), editor->color_button,
FALSE, FALSE, 0);
gtk_widget_show (editor->color_button);
pika_help_set_help_data (editor->color_button,
_("Change color of selected text"), NULL);
g_signal_connect (editor->color_button, "color-changed",
G_CALLBACK (pika_text_style_editor_color_changed),
editor);
editor->kerning_adjustment = gtk_adjustment_new (0.0, -1000.0, 1000.0,
1.0, 10.0, 0.0);
editor->kerning_spinbutton =
pika_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);
pika_help_set_help_data (editor->kerning_spinbutton,
_("Change kerning of selected text"), NULL);
g_signal_connect (editor->kerning_adjustment, "value-changed",
G_CALLBACK (pika_text_style_editor_kerning_changed),
editor);
editor->baseline_adjustment = gtk_adjustment_new (0.0, -1000.0, 1000.0,
1.0, 10.0, 0.0);
editor->baseline_spinbutton =
pika_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);
pika_help_set_help_data (editor->baseline_spinbutton,
_("Change baseline of selected text"), NULL);
g_signal_connect (editor->baseline_adjustment, "value-changed",
G_CALLBACK (pika_text_style_editor_baseline_changed),
editor);
}
static void
pika_text_style_editor_constructed (GObject *object)
{
PikaTextStyleEditor *editor = PIKA_TEXT_STYLE_EDITOR (object);
G_OBJECT_CLASS (parent_class)->constructed (object);
pika_assert (PIKA_IS_PIKA (editor->pika));
pika_assert (PIKA_IS_CONTAINER (editor->fonts));
pika_assert (PIKA_IS_TEXT (editor->text));
pika_assert (PIKA_IS_TEXT_BUFFER (editor->buffer));
editor->context = pika_context_new (editor->pika, "text style editor", NULL);
g_signal_connect (editor->context, "font-changed",
G_CALLBACK (pika_text_style_editor_font_changed),
editor);
pika_size_entry_set_resolution (PIKA_SIZE_ENTRY (editor->size_entry), 0,
editor->resolution_y, TRUE);
/* use the global user context so we get the global FG/BG colors */
pika_color_panel_set_context (PIKA_COLOR_PANEL (editor->color_button),
pika_get_user_context (editor->pika));
pika_container_view_set_container (PIKA_CONTAINER_VIEW (editor->font_entry),
editor->fonts);
pika_container_view_set_context (PIKA_CONTAINER_VIEW (editor->font_entry),
editor->context);
pika_text_style_editor_create_toggle (editor, editor->buffer->bold_tag,
PIKA_ICON_FORMAT_TEXT_BOLD,
_("Bold"));
pika_text_style_editor_create_toggle (editor, editor->buffer->italic_tag,
PIKA_ICON_FORMAT_TEXT_ITALIC,
_("Italic"));
pika_text_style_editor_create_toggle (editor, editor->buffer->underline_tag,
PIKA_ICON_FORMAT_TEXT_UNDERLINE,
_("Underline"));
pika_text_style_editor_create_toggle (editor, editor->buffer->strikethrough_tag,
PIKA_ICON_FORMAT_TEXT_STRIKETHROUGH,
_("Strikethrough"));
g_signal_connect_swapped (editor->text, "notify::font",
G_CALLBACK (pika_text_style_editor_update),
editor);
g_signal_connect_swapped (editor->text, "notify::font-size",
G_CALLBACK (pika_text_style_editor_update),
editor);
g_signal_connect_swapped (editor->text, "notify::font-size-unit",
G_CALLBACK (pika_text_style_editor_update),
editor);
g_signal_connect_swapped (editor->text, "notify::color",
G_CALLBACK (pika_text_style_editor_update),
editor);
g_signal_connect_data (editor->buffer, "changed",
G_CALLBACK (pika_text_style_editor_update),
editor, 0,
G_CONNECT_AFTER | G_CONNECT_SWAPPED);
g_signal_connect_data (editor->buffer, "apply-tag",
G_CALLBACK (pika_text_style_editor_update),
editor, 0,
G_CONNECT_AFTER | G_CONNECT_SWAPPED);
g_signal_connect_data (editor->buffer, "remove-tag",
G_CALLBACK (pika_text_style_editor_update),
editor, 0,
G_CONNECT_AFTER | G_CONNECT_SWAPPED);
g_signal_connect_data (editor->buffer, "mark-set",
G_CALLBACK (pika_text_style_editor_update),
editor, 0,
G_CONNECT_AFTER | G_CONNECT_SWAPPED);
pika_text_style_editor_update (editor);
}
static void
pika_text_style_editor_dispose (GObject *object)
{
PikaTextStyleEditor *editor = PIKA_TEXT_STYLE_EDITOR (object);
if (editor->text)
{
g_signal_handlers_disconnect_by_func (editor->text,
pika_text_style_editor_update,
editor);
}
if (editor->buffer)
{
g_signal_handlers_disconnect_by_func (editor->buffer,
pika_text_style_editor_update,
editor);
}
if (editor->context)
{
g_signal_handlers_disconnect_by_func (editor->context,
pika_text_style_editor_font_changed,
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
pika_text_style_editor_finalize (GObject *object)
{
PikaTextStyleEditor *editor = PIKA_TEXT_STYLE_EDITOR (object);
g_clear_object (&editor->context);
g_clear_object (&editor->text);
g_clear_object (&editor->buffer);
g_clear_object (&editor->fonts);
if (editor->toggles)
{
g_list_free (editor->toggles);
editor->toggles = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
pika_text_style_editor_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
PikaTextStyleEditor *editor = PIKA_TEXT_STYLE_EDITOR (object);
switch (property_id)
{
case PROP_PIKA:
editor->pika = 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)
pika_size_entry_set_resolution (PIKA_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
pika_text_style_editor_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
PikaTextStyleEditor *editor = PIKA_TEXT_STYLE_EDITOR (object);
switch (property_id)
{
case PROP_PIKA:
g_value_set_object (value, editor->pika);
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 *
pika_text_style_editor_new (Pika *pika,
PikaText *text,
PikaTextBuffer *buffer,
PikaContainer *fonts,
gdouble resolution_x,
gdouble resolution_y)
{
g_return_val_if_fail (PIKA_IS_PIKA (pika), NULL);
g_return_val_if_fail (PIKA_IS_TEXT (text), NULL);
g_return_val_if_fail (PIKA_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 (PIKA_TYPE_TEXT_STYLE_EDITOR,
"pika", pika,
"text", text,
"buffer", buffer,
"fonts", fonts,
"resolution-x", resolution_x,
"resolution-y", resolution_y,
NULL);
}
GList *
pika_text_style_editor_list_tags (PikaTextStyleEditor *editor,
GList **remove_tags)
{
GList *toggles;
GList *tags = NULL;
g_return_val_if_fail (PIKA_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 = pika_size_entry_get_refval (PIKA_SIZE_ENTRY (editor->size_entry), 0);
if (pixels != 0.0)
{
GtkTextTag *tag;
gdouble points;
points = pika_units_to_points (pixels,
PIKA_UNIT_PIXEL,
editor->resolution_y);
tag = pika_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 = pika_context_get_font_name (editor->context);
if (font_name)
{
GtkTextTag *tag;
tag = pika_text_buffer_get_font_tag (editor->buffer, font_name);
tags = g_list_prepend (tags, tag);
}
}
{
GList *list;
PikaRGB color;
for (list = editor->buffer->color_tags; list; list = g_list_next (list))
*remove_tags = g_list_prepend (*remove_tags, list->data);
pika_color_button_get_color (PIKA_COLOR_BUTTON (editor->color_button),
&color);
if (TRUE) /* FIXME should have "inconsistent" state as for font and size */
{
GtkTextTag *tag;
tag = pika_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 *
pika_text_style_editor_create_toggle (PikaTextStyleEditor *editor,
GtkTextTag *tag,
const gchar *icon_name,
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);
pika_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 (pika_text_style_editor_tag_toggled),
editor);
image = gtk_image_new_from_icon_name (icon_name, GTK_ICON_SIZE_MENU);
gtk_container_add (GTK_CONTAINER (toggle), image);
gtk_widget_show (image);
return toggle;
}
static void
pika_text_style_editor_clear_tags (GtkButton *button,
PikaTextStyleEditor *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
pika_text_style_editor_font_changed (PikaContext *context,
PikaFont *font,
PikaTextStyleEditor *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);
pika_text_buffer_set_font (editor->buffer, &start, &end,
pika_context_get_font_name (context));
}
insert_tags = pika_text_style_editor_list_tags (editor, &remove_tags);
pika_text_buffer_set_insert_tags (editor->buffer, insert_tags, remove_tags);
}
static void
pika_text_style_editor_set_font (PikaTextStyleEditor *editor,
GtkTextTag *font_tag)
{
gchar *font = NULL;
if (font_tag)
font = pika_text_tag_get_font (font_tag);
g_signal_handlers_block_by_func (editor->context,
pika_text_style_editor_font_changed,
editor);
pika_context_set_font_name (editor->context, font);
g_signal_handlers_unblock_by_func (editor->context,
pika_text_style_editor_font_changed,
editor);
g_free (font);
}
static void
pika_text_style_editor_set_default_font (PikaTextStyleEditor *editor)
{
g_signal_handlers_block_by_func (editor->context,
pika_text_style_editor_font_changed,
editor);
pika_context_set_font (editor->context, editor->text->font);
g_signal_handlers_unblock_by_func (editor->context,
pika_text_style_editor_font_changed,
editor);
}
static void
pika_text_style_editor_color_changed (PikaColorButton *button,
PikaTextStyleEditor *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;
PikaRGB color;
gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
pika_color_button_get_color (button, &color);
pika_text_buffer_set_color (editor->buffer, &start, &end, &color);
}
insert_tags = pika_text_style_editor_list_tags (editor, &remove_tags);
pika_text_buffer_set_insert_tags (editor->buffer, insert_tags, remove_tags);
}
static void
pika_text_style_editor_set_color (PikaTextStyleEditor *editor,
GtkTextTag *color_tag)
{
PikaRGB color;
pika_rgba_set (&color, 0.0, 0.0, 0.0, 1.0);
if (color_tag)
pika_text_tag_get_fg_color (color_tag, &color);
g_signal_handlers_block_by_func (editor->color_button,
pika_text_style_editor_color_changed,
editor);
pika_color_button_set_color (PIKA_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,
pika_text_style_editor_color_changed,
editor);
}
static void
pika_text_style_editor_set_default_color (PikaTextStyleEditor *editor)
{
g_signal_handlers_block_by_func (editor->color_button,
pika_text_style_editor_color_changed,
editor);
pika_color_button_set_color (PIKA_COLOR_BUTTON (editor->color_button),
&editor->text->color);
g_signal_handlers_unblock_by_func (editor->color_button,
pika_text_style_editor_color_changed,
editor);
}
static void
pika_text_style_editor_tag_toggled (GtkToggleButton *toggle,
PikaTextStyleEditor *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 = pika_text_style_editor_list_tags (editor, &remove_tags);
pika_text_buffer_set_insert_tags (editor->buffer, insert_tags, remove_tags);
}
static void
pika_text_style_editor_set_toggle (PikaTextStyleEditor *editor,
GtkToggleButton *toggle,
gboolean active)
{
g_signal_handlers_block_by_func (toggle,
pika_text_style_editor_tag_toggled,
editor);
gtk_toggle_button_set_active (toggle, active);
g_signal_handlers_unblock_by_func (toggle,
pika_text_style_editor_tag_toggled,
editor);
}
static void
pika_text_style_editor_size_changed (PikaSizeEntry *entry,
PikaTextStyleEditor *editor)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (editor->buffer);
GList *insert_tags;
GList *remove_tags;
GtkTextIter start, end;
gdouble points;
points = pika_units_to_points (pika_size_entry_get_refval (entry, 0),
PIKA_UNIT_PIXEL, editor->resolution_y);
if (gtk_text_buffer_get_has_selection (buffer))
{
gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
}
else
{
gtk_text_buffer_get_iter_at_offset (buffer, &start, 0);
gtk_text_buffer_get_iter_at_offset (buffer, &end, -1);
}
pika_text_buffer_set_size (editor->buffer, &start, &end,
PANGO_SCALE * points);
insert_tags = pika_text_style_editor_list_tags (editor, &remove_tags);
pika_text_buffer_set_insert_tags (editor->buffer, insert_tags, remove_tags);
}
static void
pika_text_style_editor_set_size (PikaTextStyleEditor *editor,
GtkTextTag *size_tag)
{
gint size = 0;
gdouble pixels;
if (size_tag)
size = pika_text_tag_get_size (size_tag);
g_signal_handlers_block_by_func (editor->size_entry,
pika_text_style_editor_size_changed,
editor);
pixels = pika_units_to_pixels ((gdouble) size / PANGO_SCALE,
PIKA_UNIT_POINT,
editor->resolution_y);
pika_size_entry_set_refval (PIKA_SIZE_ENTRY (editor->size_entry), 0, pixels);
if (size == 0)
{
GtkWidget *spinbutton;
spinbutton = pika_size_entry_get_help_widget (PIKA_SIZE_ENTRY (editor->size_entry), 0);
gtk_entry_set_text (GTK_ENTRY (spinbutton), "");
}
g_signal_handlers_unblock_by_func (editor->size_entry,
pika_text_style_editor_size_changed,
editor);
}
static void
pika_text_style_editor_set_default_size (PikaTextStyleEditor *editor)
{
gdouble pixels = pika_units_to_pixels (editor->text->font_size,
editor->text->unit,
editor->resolution_y);
g_signal_handlers_block_by_func (editor->size_entry,
pika_text_style_editor_size_changed,
editor);
pika_size_entry_set_refval (PIKA_SIZE_ENTRY (editor->size_entry), 0, pixels);
g_signal_handlers_unblock_by_func (editor->size_entry,
pika_text_style_editor_size_changed,
editor);
}
static void
pika_text_style_editor_baseline_changed (GtkAdjustment *adjustment,
PikaTextStyleEditor *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);
}
pika_text_buffer_set_baseline (editor->buffer, &start, &end,
gtk_adjustment_get_value (adjustment) *
PANGO_SCALE);
}
static void
pika_text_style_editor_set_baseline (PikaTextStyleEditor *editor,
GtkTextTag *baseline_tag)
{
gint baseline = 0;
if (baseline_tag)
baseline = pika_text_tag_get_baseline (baseline_tag);
g_signal_handlers_block_by_func (editor->baseline_adjustment,
pika_text_style_editor_baseline_changed,
editor);
if (gtk_adjustment_get_value (editor->baseline_adjustment) !=
(gdouble) baseline / PANGO_SCALE)
{
gtk_adjustment_set_value (editor->baseline_adjustment,
(gdouble) baseline / PANGO_SCALE);
}
else
{
/* make sure the "" really gets replaced */
g_signal_emit_by_name (editor->baseline_adjustment, "value-changed");
}
g_signal_handlers_unblock_by_func (editor->baseline_adjustment,
pika_text_style_editor_baseline_changed,
editor);
}
static void
pika_text_style_editor_kerning_changed (GtkAdjustment *adjustment,
PikaTextStyleEditor *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);
}
pika_text_buffer_set_kerning (editor->buffer, &start, &end,
gtk_adjustment_get_value (adjustment) *
PANGO_SCALE);
}
static void
pika_text_style_editor_set_kerning (PikaTextStyleEditor *editor,
GtkTextTag *kerning_tag)
{
gint kerning = 0;
if (kerning_tag)
kerning = pika_text_tag_get_kerning (kerning_tag);
g_signal_handlers_block_by_func (editor->kerning_adjustment,
pika_text_style_editor_kerning_changed,
editor);
if (gtk_adjustment_get_value (editor->baseline_adjustment) !=
(gdouble) kerning / PANGO_SCALE)
{
gtk_adjustment_set_value (editor->kerning_adjustment,
(gdouble) kerning / PANGO_SCALE);
}
else
{
/* make sure the "" really gets replaced */
g_signal_emit_by_name (editor->kerning_adjustment, "value-changed");
}
g_signal_handlers_unblock_by_func (editor->kerning_adjustment,
pika_text_style_editor_kerning_changed,
editor);
}
static void
pika_text_style_editor_update (PikaTextStyleEditor *editor)
{
if (editor->update_idle_id)
g_source_remove (editor->update_idle_id);
editor->update_idle_id =
gdk_threads_add_idle ((GSourceFunc) pika_text_style_editor_update_idle,
editor);
}
static gboolean
pika_text_style_editor_update_idle (PikaTextStyleEditor *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;
pika_text_style_editor_set_toggle (editor, toggle, TRUE);
}
/* and get some initial values */
font_tag = pika_text_buffer_get_iter_font (editor->buffer,
&start, NULL);
color_tag = pika_text_buffer_get_iter_color (editor->buffer,
&start, NULL);
size_tag = pika_text_buffer_get_iter_size (editor->buffer,
&start, NULL);
baseline_tag = pika_text_buffer_get_iter_baseline (editor->buffer,
&start, NULL);
kerning_tag = pika_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))
{
pika_text_style_editor_set_toggle (editor, toggle, FALSE);
}
else
{
any_toggle_active = TRUE;
}
}
}
if (! font_differs)
{
GtkTextTag *tag;
tag = pika_text_buffer_get_iter_font (editor->buffer, &iter,
NULL);
if (tag != font_tag)
font_differs = TRUE;
}
if (! color_differs)
{
GtkTextTag *tag;
tag = pika_text_buffer_get_iter_color (editor->buffer, &iter,
NULL);
if (tag != color_tag)
color_differs = TRUE;
}
if (! size_differs)
{
GtkTextTag *tag;
tag = pika_text_buffer_get_iter_size (editor->buffer, &iter,
NULL);
if (tag != size_tag)
size_differs = TRUE;
}
if (! baseline_differs)
{
GtkTextTag *tag;
tag = pika_text_buffer_get_iter_baseline (editor->buffer, &iter,
NULL);
if (tag != baseline_tag)
baseline_differs = TRUE;
}
if (! kerning_differs)
{
GtkTextTag *tag;
tag = pika_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)
pika_text_style_editor_set_font (editor, NULL);
else if (font_tag)
pika_text_style_editor_set_font (editor, font_tag);
else
pika_text_style_editor_set_default_font (editor);
if (color_differs)
pika_text_style_editor_set_color (editor, NULL);
else if (color_tag)
pika_text_style_editor_set_color (editor, color_tag);
else
pika_text_style_editor_set_default_color (editor);
if (size_differs)
pika_text_style_editor_set_size (editor, NULL);
else if (size_tag)
pika_text_style_editor_set_size (editor, size_tag);
else
pika_text_style_editor_set_default_size (editor);
if (baseline_differs)
gtk_entry_set_text (GTK_ENTRY (editor->baseline_spinbutton), "");
else
pika_text_style_editor_set_baseline (editor, baseline_tag);
if (kerning_differs)
gtk_entry_set_text (GTK_ENTRY (editor->kerning_spinbutton), "");
else
pika_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))
{
pika_text_style_editor_set_font (editor, tag);
break;
}
}
if (! list)
pika_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))
{
pika_text_style_editor_set_color (editor, tag);
break;
}
}
if (! list)
pika_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))
{
pika_text_style_editor_set_size (editor, tag);
break;
}
}
if (! list)
pika_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))
{
pika_text_style_editor_set_baseline (editor, tag);
break;
}
}
if (! list)
pika_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");
pika_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 = pika_text_buffer_get_iter_kerning (editor->buffer, &cursor, NULL);
pika_text_style_editor_set_kerning (editor, tag);
}
g_slist_free (tags);
g_slist_free (tags_on);
g_slist_free (tags_off);
}
if (editor->context->font_name &&
g_strcmp0 (editor->context->font_name,
pika_font_get_lookup_name (pika_context_get_font (editor->context))))
{
/* A font is set, but is unavailable; change the help text. */
gchar *help_text;
help_text = g_strdup_printf (_("Font \"%s\" unavailable on this system"),
editor->context->font_name);
pika_help_set_help_data (editor->font_entry, help_text, NULL);
g_free (help_text);
}
else
{
pika_help_set_help_data (editor->font_entry,
_("Change font of selected text"), NULL);
}
return FALSE;
}