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gimp/libgimp/gimpfontselectbutton.c

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/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimpfontselectbutton.c
* Copyright (C) 2003 Sven Neumann <sven@gimp.org>
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "gimp.h"
#include "gimpuitypes.h"
#include "gimpfontselectbutton.h"
#include "gimpuimarshal.h"
#include "libgimp-intl.h"
/**
* SECTION: gimpfontselectbutton
* @title: GimpFontSelectButton
* @short_description: A button which pops up a font selection dialog.
*
* A button which pops up a font selection dialog.
**/
#define GIMP_FONT_SELECT_BUTTON_GET_PRIVATE(obj) ((GimpFontSelectButtonPrivate *) gimp_font_select_button_get_instance_private ((GimpFontSelectButton *) (obj)))
typedef struct _GimpFontSelectButtonPrivate GimpFontSelectButtonPrivate;
struct _GimpFontSelectButtonPrivate
{
gchar *title;
gchar *font_name; /* local copy */
GtkWidget *inside;
GtkWidget *label;
};
enum
{
FONT_SET,
LAST_SIGNAL
};
enum
{
PROP_0,
PROP_TITLE,
PROP_FONT_NAME
};
/* local function prototypes */
static void gimp_font_select_button_finalize (GObject *object);
static void gimp_font_select_button_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_font_select_button_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void gimp_font_select_button_clicked (GimpFontSelectButton *button);
static void gimp_font_select_button_callback (const gchar *font_name,
gboolean dialog_closing,
gpointer user_data);
static void gimp_font_select_drag_data_received (GimpFontSelectButton *button,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection,
guint info,
guint time);
static GtkWidget * gimp_font_select_button_create_inside (GimpFontSelectButton *button);
static const GtkTargetEntry target = { "application/x-gimp-font-name", 0 };
static guint font_button_signals[LAST_SIGNAL] = { 0 };
G_DEFINE_TYPE_WITH_PRIVATE (GimpFontSelectButton, gimp_font_select_button,
GIMP_TYPE_SELECT_BUTTON)
static void
gimp_font_select_button_class_init (GimpFontSelectButtonClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpSelectButtonClass *select_button_class = GIMP_SELECT_BUTTON_CLASS (klass);
object_class->finalize = gimp_font_select_button_finalize;
object_class->set_property = gimp_font_select_button_set_property;
object_class->get_property = gimp_font_select_button_get_property;
select_button_class->select_destroy = gimp_font_select_destroy;
klass->font_set = NULL;
/**
* GimpFontSelectButton:title:
*
* The title to be used for the font selection popup dialog.
*
* Since: 2.4
*/
g_object_class_install_property (object_class, PROP_TITLE,
g_param_spec_string ("title",
"Title",
"The title to be used for the font selection popup dialog",
_("Font Selection"),
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
/**
* GimpFontSelectButton:font-name:
*
* The name of the currently selected font.
*
* Since: 2.4
*/
g_object_class_install_property (object_class, PROP_FONT_NAME,
g_param_spec_string ("font-name",
"Font name",
"The name of the currently selected font",
"Sans-serif",
GIMP_PARAM_READWRITE));
/**
* GimpFontSelectButton::font-set:
* @widget: the object which received the signal.
* @font_name: the name of the currently selected font.
* @dialog_closing: whether the dialog was closed or not.
*
* The ::font-set signal is emitted when the user selects a font.
*
* Since: 2.4
*/
font_button_signals[FONT_SET] =
g_signal_new ("font-set",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpFontSelectButtonClass, font_set),
NULL, NULL,
_gimpui_marshal_VOID__STRING_BOOLEAN,
G_TYPE_NONE, 2,
G_TYPE_STRING,
G_TYPE_BOOLEAN);
}
static void
gimp_font_select_button_init (GimpFontSelectButton *button)
{
GimpFontSelectButtonPrivate *priv;
priv = GIMP_FONT_SELECT_BUTTON_GET_PRIVATE (button);
priv->font_name = NULL;
priv->inside = gimp_font_select_button_create_inside (button);
gtk_container_add (GTK_CONTAINER (button), priv->inside);
}
/**
* gimp_font_select_button_new:
* @title: Title of the dialog to use or %NULL to use the default title.
* @font_name: Initial font name.
*
* Creates a new #GtkWidget that completely controls the selection of
* a font. This widget is suitable for placement in a table in a
* plug-in dialog.
*
* Returns: A #GtkWidget that you can use in your UI.
*
* Since: 2.4
*/
GtkWidget *
gimp_font_select_button_new (const gchar *title,
const gchar *font_name)
{
GtkWidget *button;
if (title)
button = g_object_new (GIMP_TYPE_FONT_SELECT_BUTTON,
"title", title,
"font-name", font_name,
NULL);
else
button = g_object_new (GIMP_TYPE_FONT_SELECT_BUTTON,
"font-name", font_name,
NULL);
return button;
}
/**
* gimp_font_select_button_get_font:
* @button: A #GimpFontSelectButton
*
* Retrieves the name of currently selected font.
*
* Returns: an internal copy of the font name which must not be freed.
*
* Since: 2.4
*/
const gchar *
gimp_font_select_button_get_font (GimpFontSelectButton *button)
{
GimpFontSelectButtonPrivate *priv;
g_return_val_if_fail (GIMP_IS_FONT_SELECT_BUTTON (button), NULL);
priv = GIMP_FONT_SELECT_BUTTON_GET_PRIVATE (button);
return priv->font_name;
}
/**
* gimp_font_select_button_set_font:
* @button: A #GimpFontSelectButton
* @font_name: Font name to set; %NULL means no change.
*
* Sets the current font for the font select button.
*
* Since: 2.4
*/
void
gimp_font_select_button_set_font (GimpFontSelectButton *button,
const gchar *font_name)
{
GimpSelectButton *select_button;
g_return_if_fail (GIMP_IS_FONT_SELECT_BUTTON (button));
select_button = GIMP_SELECT_BUTTON (button);
if (select_button->temp_callback)
gimp_fonts_set_popup (select_button->temp_callback, font_name);
else
gimp_font_select_button_callback (font_name, FALSE, button);
}
/* private functions */
static void
gimp_font_select_button_finalize (GObject *object)
{
GimpFontSelectButtonPrivate *priv;
priv = GIMP_FONT_SELECT_BUTTON_GET_PRIVATE (object);
g_clear_pointer (&priv->font_name, g_free);
g_clear_pointer (&priv->title, g_free);
G_OBJECT_CLASS (gimp_font_select_button_parent_class)->finalize (object);
}
static void
gimp_font_select_button_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpFontSelectButton *button = GIMP_FONT_SELECT_BUTTON (object);
GimpFontSelectButtonPrivate *priv;
priv = GIMP_FONT_SELECT_BUTTON_GET_PRIVATE (button);
switch (property_id)
{
case PROP_TITLE:
priv->title = g_value_dup_string (value);
break;
case PROP_FONT_NAME:
gimp_font_select_button_set_font (button,
g_value_get_string (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_font_select_button_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpFontSelectButton *button = GIMP_FONT_SELECT_BUTTON (object);
GimpFontSelectButtonPrivate *priv;
priv = GIMP_FONT_SELECT_BUTTON_GET_PRIVATE (button);
switch (property_id)
{
case PROP_TITLE:
g_value_set_string (value, priv->title);
break;
case PROP_FONT_NAME:
g_value_set_string (value, priv->font_name);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_font_select_button_callback (const gchar *font_name,
gboolean dialog_closing,
gpointer user_data)
{
GimpFontSelectButton *button;
GimpFontSelectButtonPrivate *priv;
GimpSelectButton *select_button;
button = GIMP_FONT_SELECT_BUTTON (user_data);
priv = GIMP_FONT_SELECT_BUTTON_GET_PRIVATE (button);
select_button = GIMP_SELECT_BUTTON (button);
g_free (priv->font_name);
priv->font_name = g_strdup (font_name);
gtk_label_set_text (GTK_LABEL (priv->label), font_name);
if (dialog_closing)
select_button->temp_callback = NULL;
g_signal_emit (button, font_button_signals[FONT_SET], 0,
font_name, dialog_closing);
g_object_notify (G_OBJECT (button), "font-name");
}
static void
gimp_font_select_button_clicked (GimpFontSelectButton *button)
{
GimpFontSelectButtonPrivate *priv;
GimpSelectButton *select_button;
priv = GIMP_FONT_SELECT_BUTTON_GET_PRIVATE (button);
select_button = GIMP_SELECT_BUTTON (button);
if (select_button->temp_callback)
{
/* calling gimp_fonts_set_popup() raises the dialog */
gimp_fonts_set_popup (select_button->temp_callback,
priv->font_name);
}
else
{
select_button->temp_callback =
gimp_font_select_new (priv->title, priv->font_name,
gimp_font_select_button_callback,
button);
}
}
static void
gimp_font_select_drag_data_received (GimpFontSelectButton *button,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection,
guint info,
guint time)
{
gint length = gtk_selection_data_get_length (selection);
gchar *str;
if (gtk_selection_data_get_format (selection) != 8 || length < 1)
{
g_warning ("%s: received invalid font data", G_STRFUNC);
return;
}
str = g_strndup ((const gchar *) gtk_selection_data_get_data (selection),
length);
if (g_utf8_validate (str, -1, NULL))
{
gint pid;
gpointer unused;
gint name_offset = 0;
if (sscanf (str, "%i:%p:%n", &pid, &unused, &name_offset) >= 2 &&
pid == gimp_getpid () && name_offset > 0)
{
gchar *name = str + name_offset;
gimp_font_select_button_set_font (button, name);
}
}
g_free (str);
}
static GtkWidget *
gimp_font_select_button_create_inside (GimpFontSelectButton *font_button)
{
GtkWidget *button;
GtkWidget *hbox;
GtkWidget *image;
GimpFontSelectButtonPrivate *priv;
priv = GIMP_FONT_SELECT_BUTTON_GET_PRIVATE (font_button);
gtk_widget_push_composite_child ();
button = gtk_button_new ();
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
gtk_container_add (GTK_CONTAINER (button), hbox);
image = gtk_image_new_from_icon_name (GIMP_ICON_FONT,
GTK_ICON_SIZE_BUTTON);
gtk_box_pack_start (GTK_BOX (hbox), image, FALSE, FALSE, 0);
priv->label = gtk_label_new (priv->font_name);
gtk_box_pack_start (GTK_BOX (hbox), priv->label, TRUE, TRUE, 4);
gtk_widget_show_all (button);
g_signal_connect_swapped (button, "clicked",
G_CALLBACK (gimp_font_select_button_clicked),
font_button);
gtk_drag_dest_set (GTK_WIDGET (button),
GTK_DEST_DEFAULT_HIGHLIGHT |
GTK_DEST_DEFAULT_MOTION |
GTK_DEST_DEFAULT_DROP,
&target, 1,
GDK_ACTION_COPY);
g_signal_connect_swapped (button, "drag-data-received",
G_CALLBACK (gimp_font_select_drag_data_received),
font_button);
gtk_widget_pop_composite_child ();
return button;
}
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