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PIKApp/app/widgets/pikasizebox.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
*
* pikasizebox.c
* Copyright (C) 2004 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 <stdio.h>
#include <gegl.h>
#include <gtk/gtk.h>
#include "libpikabase/pikabase.h"
#include "libpikamath/pikamath.h"
#include "libpikaconfig/pikaconfig.h"
#include "libpikawidgets/pikawidgets.h"
#include "widgets-types.h"
#include "pikasizebox.h"
#include "pika-intl.h"
#define SB_WIDTH 8
enum
{
PROP_0,
PROP_WIDTH,
PROP_HEIGHT,
PROP_UNIT,
PROP_XRESOLUTION,
PROP_YRESOLUTION,
PROP_RESOLUTION_UNIT,
PROP_KEEP_ASPECT,
PROP_EDIT_RESOLUTION
};
#define PIKA_SIZE_BOX_GET_PRIVATE(obj) ((PikaSizeBoxPrivate *) pika_size_box_get_instance_private ((PikaSizeBox *) (obj)))
typedef struct _PikaSizeBoxPrivate PikaSizeBoxPrivate;
struct _PikaSizeBoxPrivate
{
PikaSizeEntry *size_entry;
PikaChainButton *size_chain;
GtkWidget *pixel_label;
GtkWidget *res_label;
};
static void pika_size_box_constructed (GObject *object);
static void pika_size_box_dispose (GObject *object);
static void pika_size_box_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void pika_size_box_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void pika_size_box_update_size (PikaSizeBox *box);
static void pika_size_box_update_resolution (PikaSizeBox *box);
static void pika_size_box_chain_toggled (PikaChainButton *button,
PikaSizeBox *box);
G_DEFINE_TYPE_WITH_PRIVATE (PikaSizeBox, pika_size_box, GTK_TYPE_BOX)
#define parent_class pika_size_box_parent_class
static void
pika_size_box_class_init (PikaSizeBoxClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->constructed = pika_size_box_constructed;
object_class->dispose = pika_size_box_dispose;
object_class->set_property = pika_size_box_set_property;
object_class->get_property = pika_size_box_get_property;
g_object_class_install_property (object_class, PROP_WIDTH,
g_param_spec_int ("width", NULL, NULL,
PIKA_MIN_IMAGE_SIZE,
PIKA_MAX_IMAGE_SIZE,
256,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
g_object_class_install_property (object_class, PROP_HEIGHT,
g_param_spec_int ("height", NULL, NULL,
PIKA_MIN_IMAGE_SIZE,
PIKA_MAX_IMAGE_SIZE,
256,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
g_object_class_install_property (object_class, PROP_UNIT,
pika_param_spec_unit ("unit", NULL, NULL,
TRUE, TRUE,
PIKA_UNIT_PIXEL,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
g_object_class_install_property (object_class, PROP_XRESOLUTION,
g_param_spec_double ("xresolution",
NULL, NULL,
PIKA_MIN_RESOLUTION,
PIKA_MAX_RESOLUTION,
72.0,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
g_object_class_install_property (object_class, PROP_YRESOLUTION,
g_param_spec_double ("yresolution",
NULL, NULL,
PIKA_MIN_RESOLUTION,
PIKA_MAX_RESOLUTION,
72.0,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
g_object_class_install_property (object_class, PROP_RESOLUTION_UNIT,
pika_param_spec_unit ("resolution-unit",
NULL, NULL,
FALSE, FALSE,
PIKA_UNIT_INCH,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
g_object_class_install_property (object_class, PROP_KEEP_ASPECT,
g_param_spec_boolean ("keep-aspect",
NULL, NULL,
TRUE,
PIKA_PARAM_READWRITE));
g_object_class_install_property (object_class, PROP_EDIT_RESOLUTION,
g_param_spec_boolean ("edit-resolution",
NULL, NULL,
FALSE,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
}
static void
pika_size_box_init (PikaSizeBox *box)
{
gtk_orientable_set_orientation (GTK_ORIENTABLE (box),
GTK_ORIENTATION_VERTICAL);
gtk_box_set_spacing (GTK_BOX (box), 6);
box->size_group = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
}
static void
pika_size_box_constructed (GObject *object)
{
PikaSizeBox *box = PIKA_SIZE_BOX (object);
PikaSizeBoxPrivate *priv = PIKA_SIZE_BOX_GET_PRIVATE (box);
GtkWidget *vbox;
GtkWidget *entry;
GtkWidget *hbox;
GtkWidget *label;
GList *children;
GList *list;
G_OBJECT_CLASS (parent_class)->constructed (object);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_box_pack_start (GTK_BOX (box), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
entry = pika_coordinates_new (box->unit, "%p",
TRUE, TRUE, SB_WIDTH,
PIKA_SIZE_ENTRY_UPDATE_SIZE,
TRUE, TRUE,
_("_Width:"),
box->width, box->xresolution,
PIKA_MIN_IMAGE_SIZE, PIKA_MAX_IMAGE_SIZE,
0, box->width,
_("H_eight:"),
box->height, box->yresolution,
PIKA_MIN_IMAGE_SIZE, PIKA_MAX_IMAGE_SIZE,
0, box->height);
priv->size_entry = PIKA_SIZE_ENTRY (entry);
priv->size_chain = PIKA_COORDINATES_CHAINBUTTON (PIKA_SIZE_ENTRY (entry));
/*
* let pika_prop_coordinates_callback know how to interpret the chainbutton
*/
g_object_set_data (G_OBJECT (priv->size_chain),
"constrains-ratio", GINT_TO_POINTER (TRUE));
pika_prop_coordinates_connect (G_OBJECT (box),
"width", "height",
"unit",
entry, NULL,
box->xresolution,
box->yresolution);
g_signal_connect (priv->size_chain, "toggled",
G_CALLBACK (pika_size_box_chain_toggled),
box);
gtk_box_pack_start (GTK_BOX (hbox), entry, FALSE, FALSE, 0);
gtk_widget_show (entry);
children = gtk_container_get_children (GTK_CONTAINER (entry));
for (list = children; list; list = g_list_next (list))
if (GTK_IS_LABEL (list->data))
gtk_size_group_add_widget (box->size_group, list->data);
g_list_free (children);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
gtk_grid_attach (GTK_GRID (entry), vbox, 1, 2, 2, 1);
gtk_widget_show (vbox);
label = gtk_label_new (NULL);
pika_label_set_attributes (GTK_LABEL (label),
PANGO_ATTR_SCALE, PANGO_SCALE_SMALL,
-1);
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
priv->pixel_label = label;
if (box->edit_resolution)
{
gboolean chain_active;
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_box_pack_start (GTK_BOX (box), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
chain_active = ABS (box->xresolution -
box->yresolution) < PIKA_MIN_RESOLUTION;
entry = pika_coordinates_new (box->resolution_unit, _("pixels/%a"),
FALSE, FALSE, SB_WIDTH,
PIKA_SIZE_ENTRY_UPDATE_RESOLUTION,
chain_active, FALSE,
_("_X resolution:"),
box->xresolution, 1.0,
1, 1, 1, 10,
_("_Y resolution:"),
box->yresolution, 1.0,
1, 1, 1, 10);
gtk_box_pack_start (GTK_BOX (hbox), entry, FALSE, FALSE, 0);
gtk_widget_show (entry);
children = gtk_container_get_children (GTK_CONTAINER (entry));
for (list = children; list; list = g_list_next (list))
if (GTK_IS_LABEL (list->data))
gtk_size_group_add_widget (box->size_group, list->data);
g_list_free (children);
pika_prop_coordinates_connect (G_OBJECT (box),
"xresolution", "yresolution",
"resolution-unit",
entry, NULL,
1.0, 1.0);
}
else
{
label = gtk_label_new (NULL);
pika_label_set_attributes (GTK_LABEL (label),
PANGO_ATTR_SCALE, PANGO_SCALE_SMALL,
-1);
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
priv->res_label = label;
}
pika_size_box_update_size (box);
pika_size_box_update_resolution (box);
}
static void
pika_size_box_dispose (GObject *object)
{
PikaSizeBox *box = PIKA_SIZE_BOX (object);
if (box->size_group)
{
g_object_unref (box->size_group);
box->size_group = NULL;
}
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
pika_size_box_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
PikaSizeBox *box = PIKA_SIZE_BOX (object);
PikaSizeBoxPrivate *priv = PIKA_SIZE_BOX_GET_PRIVATE (box);
switch (property_id)
{
case PROP_WIDTH:
box->width = g_value_get_int (value);
pika_size_box_update_size (box);
break;
case PROP_HEIGHT:
box->height = g_value_get_int (value);
pika_size_box_update_size (box);
break;
case PROP_UNIT:
box->unit = g_value_get_int (value);
break;
case PROP_XRESOLUTION:
box->xresolution = g_value_get_double (value);
if (priv->size_entry)
pika_size_entry_set_resolution (priv->size_entry, 0,
box->xresolution, TRUE);
pika_size_box_update_resolution (box);
break;
case PROP_YRESOLUTION:
box->yresolution = g_value_get_double (value);
if (priv->size_entry)
pika_size_entry_set_resolution (priv->size_entry, 1,
box->yresolution, TRUE);
pika_size_box_update_resolution (box);
break;
case PROP_RESOLUTION_UNIT:
box->resolution_unit = g_value_get_int (value);
break;
case PROP_KEEP_ASPECT:
if (priv->size_chain)
pika_chain_button_set_active (priv->size_chain,
g_value_get_boolean (value));
break;
case PROP_EDIT_RESOLUTION:
box->edit_resolution = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
pika_size_box_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
PikaSizeBox *box = PIKA_SIZE_BOX (object);
PikaSizeBoxPrivate *priv = PIKA_SIZE_BOX_GET_PRIVATE (box);
switch (property_id)
{
case PROP_WIDTH:
g_value_set_int (value, box->width);
break;
case PROP_HEIGHT:
g_value_set_int (value, box->height);
break;
case PROP_UNIT:
g_value_set_int (value, box->unit);
break;
case PROP_XRESOLUTION:
g_value_set_double (value, box->xresolution);
break;
case PROP_YRESOLUTION:
g_value_set_double (value, box->yresolution);
break;
case PROP_RESOLUTION_UNIT:
g_value_set_int (value, box->resolution_unit);
break;
case PROP_KEEP_ASPECT:
g_value_set_boolean (value,
pika_chain_button_get_active (priv->size_chain));
break;
case PROP_EDIT_RESOLUTION:
g_value_set_boolean (value, box->edit_resolution);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
pika_size_box_update_size (PikaSizeBox *box)
{
PikaSizeBoxPrivate *priv = PIKA_SIZE_BOX_GET_PRIVATE (box);
if (priv->pixel_label)
{
gchar *text = g_strdup_printf (ngettext ("%d × %d pixel",
"%d × %d pixels", box->height),
box->width, box->height);
gtk_label_set_text (GTK_LABEL (priv->pixel_label), text);
g_free (text);
}
}
static void
pika_size_box_update_resolution (PikaSizeBox *box)
{
PikaSizeBoxPrivate *priv = PIKA_SIZE_BOX_GET_PRIVATE (box);
if (priv->size_entry)
{
pika_size_entry_set_refval (priv->size_entry, 0, box->width);
pika_size_entry_set_refval (priv->size_entry, 1, box->height);
}
if (priv->res_label)
{
gchar *text;
gint xres = ROUND (box->xresolution);
gint yres = ROUND (box->yresolution);
if (xres != yres)
text = g_strdup_printf (_("%d × %d ppi"), xres, yres);
else
text = g_strdup_printf (_("%d ppi"), yres);
gtk_label_set_text (GTK_LABEL (priv->res_label), text);
g_free (text);
}
}
static void
pika_size_box_chain_toggled (PikaChainButton *button,
PikaSizeBox *box)
{
g_object_set (box,
"keep-aspect", pika_chain_button_get_active (button),
NULL);
}