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PIKApp
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PIKApp/app/widgets/pikatexteditor.c

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/* 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
*
* PikaTextEditor
* Copyright (C) 2002-2003, 2008 Sven Neumann <sven@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 "libpikawidgets/pikawidgets.h"
#include "widgets-types.h"
#include "core/pika.h"
#include "core/pikadatafactory.h"
#include "text/pikatext.h"
#include "pikahelp-ids.h"
#include "pikamenufactory.h"
#include "pikatextbuffer.h"
#include "pikatexteditor.h"
#include "pikatextstyleeditor.h"
#include "pikatoolbar.h"
#include "pikauimanager.h"
#include "pika-intl.h"
enum
{
TEXT_CHANGED,
DIR_CHANGED,
LAST_SIGNAL
};
static void pika_text_editor_finalize (GObject *object);
static void pika_text_editor_text_changed (GtkTextBuffer *buffer,
PikaTextEditor *editor);
static void pika_text_editor_font_toggled (GtkToggleButton *button,
PikaTextEditor *editor);
G_DEFINE_TYPE (PikaTextEditor, pika_text_editor, PIKA_TYPE_DIALOG)
#define parent_class pika_text_editor_parent_class
static guint text_editor_signals[LAST_SIGNAL] = { 0 };
static void
pika_text_editor_class_init (PikaTextEditorClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = pika_text_editor_finalize;
klass->text_changed = NULL;
klass->dir_changed = NULL;
text_editor_signals[TEXT_CHANGED] =
g_signal_new ("text-changed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (PikaTextEditorClass, text_changed),
NULL, NULL, NULL,
G_TYPE_NONE, 0);
text_editor_signals[DIR_CHANGED] =
g_signal_new ("dir-changed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (PikaTextEditorClass, dir_changed),
NULL, NULL, NULL,
G_TYPE_NONE, 0);
}
static void
pika_text_editor_init (PikaTextEditor *editor)
{
editor->view = NULL;
editor->file_dialog = NULL;
editor->ui_manager = NULL;
switch (gtk_widget_get_default_direction ())
{
case GTK_TEXT_DIR_NONE:
case GTK_TEXT_DIR_LTR:
editor->base_dir = PIKA_TEXT_DIRECTION_LTR;
break;
case GTK_TEXT_DIR_RTL:
editor->base_dir = PIKA_TEXT_DIRECTION_RTL;
break;
}
}
static void
pika_text_editor_finalize (GObject *object)
{
PikaTextEditor *editor = PIKA_TEXT_EDITOR (object);
g_clear_pointer (&editor->font_name, g_free);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
/* public functions */
GtkWidget *
pika_text_editor_new (const gchar *title,
GtkWindow *parent,
Pika *pika,
PikaMenuFactory *menu_factory,
PikaText *text,
PikaTextBuffer *text_buffer,
gdouble xres,
gdouble yres)
{
PikaTextEditor *editor;
GtkWidget *content_area;
GtkWidget *toolbar;
PikaMenuModel *toolbar_model;
GtkWidget *style_editor;
GtkWidget *scrolled_window;
gboolean use_header_bar;
g_return_val_if_fail (title != NULL, NULL);
g_return_val_if_fail (parent == NULL || GTK_IS_WINDOW (parent), NULL);
g_return_val_if_fail (PIKA_IS_PIKA (pika), NULL);
g_return_val_if_fail (PIKA_IS_MENU_FACTORY (menu_factory), NULL);
g_return_val_if_fail (PIKA_IS_TEXT (text), NULL);
g_return_val_if_fail (PIKA_IS_TEXT_BUFFER (text_buffer), NULL);
g_object_get (gtk_settings_get_default (),
"gtk-dialogs-use-header", &use_header_bar,
NULL);
editor = g_object_new (PIKA_TYPE_TEXT_EDITOR,
"title", title,
"role", "pika-text-editor",
"transient-for", parent,
"help-func", pika_standard_help_func,
"help-id", PIKA_HELP_TEXT_EDITOR_DIALOG,
"use-header-bar", use_header_bar,
NULL);
gtk_dialog_add_button (GTK_DIALOG (editor),
_("_Close"), GTK_RESPONSE_CLOSE);
g_signal_connect (editor, "response",
G_CALLBACK (gtk_widget_destroy),
NULL);
g_signal_connect_object (text_buffer, "changed",
G_CALLBACK (pika_text_editor_text_changed),
editor, 0);
editor->ui_manager = pika_menu_factory_get_manager (menu_factory,
"<TextEditor>",
editor);
content_area = gtk_dialog_get_content_area (GTK_DIALOG (editor));
toolbar_model = pika_ui_manager_get_model (editor->ui_manager,
"/text-editor-toolbar");
toolbar = pika_toolbar_new (toolbar_model, editor->ui_manager);
g_object_unref (toolbar_model);
if (toolbar)
{
gtk_box_pack_start (GTK_BOX (content_area), toolbar, FALSE, FALSE, 0);
gtk_widget_show (toolbar);
}
style_editor = pika_text_style_editor_new (pika, text, text_buffer,
pika_data_factory_get_container (pika->font_factory),
xres, yres);
gtk_box_pack_start (GTK_BOX (content_area), style_editor, FALSE, FALSE, 0);
gtk_widget_show (style_editor);
scrolled_window = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_container_set_border_width (GTK_CONTAINER (scrolled_window), 2);
gtk_box_pack_start (GTK_BOX (content_area), scrolled_window, TRUE, TRUE, 0);
gtk_widget_show (scrolled_window);
editor->view = gtk_text_view_new_with_buffer (GTK_TEXT_BUFFER (text_buffer));
gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (editor->view),
GTK_WRAP_WORD_CHAR);
gtk_container_add (GTK_CONTAINER (scrolled_window), editor->view);
gtk_widget_show (editor->view);
switch (editor->base_dir)
{
case PIKA_TEXT_DIRECTION_LTR:
case PIKA_TEXT_DIRECTION_TTB_RTL:
case PIKA_TEXT_DIRECTION_TTB_RTL_UPRIGHT:
case PIKA_TEXT_DIRECTION_TTB_LTR:
case PIKA_TEXT_DIRECTION_TTB_LTR_UPRIGHT:
gtk_widget_set_direction (editor->view, GTK_TEXT_DIR_LTR);
break;
case PIKA_TEXT_DIRECTION_RTL:
gtk_widget_set_direction (editor->view, GTK_TEXT_DIR_RTL);
break;
}
gtk_widget_set_size_request (editor->view, 200, 64);
editor->font_toggle =
gtk_check_button_new_with_mnemonic (_("_Use selected font"));
gtk_box_pack_start (GTK_BOX (content_area), editor->font_toggle,
FALSE, FALSE, 0);
gtk_widget_show (editor->font_toggle);
g_signal_connect (editor->font_toggle, "toggled",
G_CALLBACK (pika_text_editor_font_toggled),
editor);
gtk_widget_grab_focus (editor->view);
pika_ui_manager_update (editor->ui_manager, editor);
return GTK_WIDGET (editor);
}
void
pika_text_editor_set_text (PikaTextEditor *editor,
const gchar *text,
gint len)
{
GtkTextBuffer *buffer;
g_return_if_fail (PIKA_IS_TEXT_EDITOR (editor));
g_return_if_fail (text != NULL || len == 0);
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (editor->view));
if (text)
gtk_text_buffer_set_text (buffer, text, len);
else
gtk_text_buffer_set_text (buffer, "", 0);
}
gchar *
pika_text_editor_get_text (PikaTextEditor *editor)
{
GtkTextBuffer *buffer;
g_return_val_if_fail (PIKA_IS_TEXT_EDITOR (editor), NULL);
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (editor->view));
return pika_text_buffer_get_text (PIKA_TEXT_BUFFER (buffer));
}
void
pika_text_editor_set_direction (PikaTextEditor *editor,
PikaTextDirection base_dir)
{
g_return_if_fail (PIKA_IS_TEXT_EDITOR (editor));
if (editor->base_dir == base_dir)
return;
editor->base_dir = base_dir;
if (editor->view)
{
switch (editor->base_dir)
{
case PIKA_TEXT_DIRECTION_LTR:
case PIKA_TEXT_DIRECTION_TTB_RTL:
case PIKA_TEXT_DIRECTION_TTB_RTL_UPRIGHT:
case PIKA_TEXT_DIRECTION_TTB_LTR:
case PIKA_TEXT_DIRECTION_TTB_LTR_UPRIGHT:
gtk_widget_set_direction (editor->view, GTK_TEXT_DIR_LTR);
break;
case PIKA_TEXT_DIRECTION_RTL:
gtk_widget_set_direction (editor->view, GTK_TEXT_DIR_RTL);
break;
}
}
pika_ui_manager_update (editor->ui_manager, editor);
g_signal_emit (editor, text_editor_signals[DIR_CHANGED], 0);
}
PikaTextDirection
pika_text_editor_get_direction (PikaTextEditor *editor)
{
g_return_val_if_fail (PIKA_IS_TEXT_EDITOR (editor), PIKA_TEXT_DIRECTION_LTR);
return editor->base_dir;
}
void
pika_text_editor_set_font_name (PikaTextEditor *editor,
const gchar *font_name)
{
g_return_if_fail (PIKA_IS_TEXT_EDITOR (editor));
if (editor->font_name)
g_free (editor->font_name);
editor->font_name = g_strdup (font_name);
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (editor->font_toggle)))
{
PangoFontDescription *font_desc = NULL;
if (font_name)
font_desc = pango_font_description_from_string (font_name);
gtk_widget_override_font (editor->view, font_desc);
if (font_desc)
pango_font_description_free (font_desc);
}
}
const gchar *
pika_text_editor_get_font_name (PikaTextEditor *editor)
{
g_return_val_if_fail (PIKA_IS_TEXT_EDITOR (editor), NULL);
return editor->font_name;
}
/* private functions */
static void
pika_text_editor_text_changed (GtkTextBuffer *buffer,
PikaTextEditor *editor)
{
g_signal_emit (editor, text_editor_signals[TEXT_CHANGED], 0);
}
static void
pika_text_editor_font_toggled (GtkToggleButton *button,
PikaTextEditor *editor)
{
PangoFontDescription *font_desc = NULL;
if (gtk_toggle_button_get_active (button) && editor->font_name)
font_desc = pango_font_description_from_string (editor->font_name);
gtk_widget_override_font (editor->view, font_desc);
if (font_desc)
pango_font_description_free (font_desc);
}
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