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PIKApp/app/dialogs/resize-dialog.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
*
* 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 "libpikamath/pikamath.h"
#include "libpikawidgets/pikawidgets.h"
#include "dialogs-types.h"
#include "core/pika.h"
#include "core/pikacontext.h"
#include "core/pikaimage.h"
#include "core/pikalayer.h"
#include "core/pikatemplate.h"
#include "widgets/pikacontainercombobox.h"
#include "widgets/pikahelp-ids.h"
#include "widgets/pikasizebox.h"
#include "widgets/pikaviewabledialog.h"
#include "widgets/pikawidgets-constructors.h"
#include "resize-dialog.h"
#include "pika-intl.h"
#define RESPONSE_RESET 1
#define SB_WIDTH 8
typedef struct _ResizeDialog ResizeDialog;
struct _ResizeDialog
{
PikaViewable *viewable;
PikaContext *context;
PikaContext *parent_context;
PikaFillType fill_type;
PikaItemSet layer_set;
gboolean resize_text_layers;
PikaResizeCallback callback;
gpointer user_data;
gdouble old_xres;
gdouble old_yres;
PikaUnit old_res_unit;
gint old_width;
gint old_height;
PikaUnit old_unit;
PikaFillType old_fill_type;
PikaItemSet old_layer_set;
gboolean old_resize_text_layers;
GtkWidget *box;
GtkWidget *offset;
GtkWidget *area;
GtkWidget *layer_set_combo;
GtkWidget *fill_type_combo;
GtkWidget *text_layers_button;
GtkWidget *ppi_box;
GtkWidget *ppi_image;
GtkWidget *ppi_template;
PikaTemplate *template;
};
/* local function prototypes */
static void resize_dialog_free (ResizeDialog *private);
static void resize_dialog_response (GtkWidget *dialog,
gint response_id,
ResizeDialog *private);
static void resize_dialog_reset (ResizeDialog *private);
static void size_notify (PikaSizeBox *box,
GParamSpec *pspec,
ResizeDialog *private);
static void offset_update (GtkWidget *widget,
ResizeDialog *private);
static void offsets_changed (GtkWidget *area,
gint off_x,
gint off_y,
ResizeDialog *private);
static void offset_center_clicked (GtkWidget *widget,
ResizeDialog *private);
static void template_changed (PikaContext *context,
PikaTemplate *template,
ResizeDialog *private);
static void reset_template_clicked (GtkWidget *button,
ResizeDialog *private);
static void ppi_select_toggled (GtkWidget *radio,
ResizeDialog *private);
/* public function */
GtkWidget *
resize_dialog_new (PikaViewable *viewable,
PikaContext *context,
const gchar *title,
const gchar *role,
GtkWidget *parent,
PikaHelpFunc help_func,
const gchar *help_id,
PikaUnit unit,
PikaFillType fill_type,
PikaItemSet layer_set,
gboolean resize_text_layers,
PikaResizeCallback callback,
gpointer user_data)
{
ResizeDialog *private;
GtkWidget *dialog;
GtkWidget *main_vbox;
GtkWidget *vbox;
GtkWidget *center_hbox;
GtkWidget *center_left_vbox;
GtkWidget *center_right_vbox;
GtkWidget *frame;
GtkWidget *button;
GtkWidget *spinbutton;
GtkWidget *entry;
GtkWidget *hbox;
GtkWidget *combo;
GtkWidget *label;
GtkWidget *template_selector;
GtkWidget *ppi_image;
GtkWidget *ppi_template;
GtkAdjustment *adjustment;
GdkPixbuf *pixbuf;
GtkSizeGroup *size_group = NULL;
PikaImage *image = NULL;
const gchar *size_title = NULL;
const gchar *layers_title = NULL;
gint width, height;
gdouble xres, yres;
g_return_val_if_fail (PIKA_IS_VIEWABLE (viewable), NULL);
g_return_val_if_fail (PIKA_IS_CONTEXT (context), NULL);
g_return_val_if_fail (callback != NULL, NULL);
if (PIKA_IS_IMAGE (viewable))
{
image = PIKA_IMAGE (viewable);
width = pika_image_get_width (image);
height = pika_image_get_height (image);
size_title = _("Canvas Size");
layers_title = _("Layers");
}
else if (PIKA_IS_ITEM (viewable))
{
PikaItem *item = PIKA_ITEM (viewable);
image = pika_item_get_image (item);
width = pika_item_get_width (item);
height = pika_item_get_height (item);
size_title = _("Layer Size");
layers_title = _("Fill With");
}
else
{
g_return_val_if_reached (NULL);
}
private = g_slice_new0 (ResizeDialog);
private->parent_context = context;
private->context = pika_context_new (context->pika,
"resize-dialog",
context);
pika_image_get_resolution (image, &xres, &yres);
private->old_xres = xres;
private->old_yres = yres;
private->old_res_unit = pika_image_get_unit (image);
private->viewable = viewable;
private->fill_type = fill_type;
private->layer_set = layer_set;
private->resize_text_layers = resize_text_layers;
private->callback = callback;
private->user_data = user_data;
private->old_width = width;
private->old_height = height;
private->old_unit = unit;
private->old_fill_type = private->fill_type;
private->old_layer_set = private->layer_set;
private->old_resize_text_layers = private->resize_text_layers;
pika_context_set_template (private->context, NULL);
dialog = pika_viewable_dialog_new (g_list_prepend (NULL, viewable), context,
title, role, PIKA_ICON_OBJECT_RESIZE, title,
parent,
help_func, help_id,
_("Re_set"), RESPONSE_RESET,
_("_Cancel"), GTK_RESPONSE_CANCEL,
_("_Resize"), GTK_RESPONSE_OK,
NULL);
pika_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
RESPONSE_RESET,
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
g_object_weak_ref (G_OBJECT (dialog),
(GWeakNotify) resize_dialog_free, private);
g_signal_connect (dialog, "response",
G_CALLBACK (resize_dialog_response),
private);
main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
main_vbox, TRUE, TRUE, 0);
gtk_widget_show (main_vbox);
/* template selector */
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_start (GTK_BOX (main_vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
label = gtk_label_new_with_mnemonic (_("_Template:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
template_selector = g_object_new (PIKA_TYPE_CONTAINER_COMBO_BOX,
"container", context->pika->templates,
"context", private->context,
"view-size", 16,
"view-border-width", 0,
"ellipsize", PANGO_ELLIPSIZE_NONE,
"focus-on-click", FALSE,
NULL);
gtk_box_pack_start (GTK_BOX (hbox), template_selector, TRUE, TRUE, 0);
gtk_widget_show (template_selector);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), template_selector);
g_signal_connect (private->context,
"template-changed",
G_CALLBACK (template_changed),
private);
/* reset template button */
button = pika_icon_button_new (PIKA_ICON_RESET, NULL);
gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
gtk_image_set_from_icon_name (GTK_IMAGE (gtk_bin_get_child (GTK_BIN (button))),
PIKA_ICON_RESET, GTK_ICON_SIZE_MENU);
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button,
"clicked",
G_CALLBACK (reset_template_clicked),
private);
pika_help_set_help_data (button,
_("Reset the template selection"),
NULL);
/* ppi selector box */
private->ppi_box = vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
gtk_box_pack_start (GTK_BOX (main_vbox), vbox, FALSE, FALSE, 0);
label = gtk_label_new (_("Template and image print resolution don't match.\n"
"Choose how to scale the canvas:"));
gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
gtk_label_set_justify (GTK_LABEL (label), GTK_JUSTIFY_CENTER);
gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_box_set_homogeneous (GTK_BOX (hbox), TRUE);
gtk_widget_show (hbox);
/* actual label text is set inside template_change fn. */
ppi_image = gtk_radio_button_new_with_label (NULL, "");
ppi_template = gtk_radio_button_new_with_label (NULL, "");
private->ppi_image = ppi_image;
private->ppi_template = ppi_template;
gtk_radio_button_join_group (GTK_RADIO_BUTTON (ppi_template),
GTK_RADIO_BUTTON (ppi_image));
gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (ppi_image), FALSE);
gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (ppi_template), FALSE);
gtk_box_pack_start (GTK_BOX (hbox), ppi_image, FALSE, FALSE, 0);
gtk_box_pack_start (GTK_BOX (hbox), ppi_template, FALSE, FALSE, 0);
gtk_widget_show (ppi_image);
gtk_widget_show (ppi_template);
g_signal_connect (G_OBJECT (ppi_image),
"toggled",
G_CALLBACK (ppi_select_toggled),
private);
g_signal_connect (G_OBJECT (ppi_template),
"toggled",
G_CALLBACK (ppi_select_toggled),
private);
/* For space gain, organize the main widgets in both vertical and
* horizontal layout.
* The size and offset fields are on the center left, while the
* preview and the "Center" button are on center right.
*/
center_hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2);
gtk_box_pack_start (GTK_BOX (main_vbox), center_hbox, FALSE, FALSE, 0);
gtk_widget_show (center_hbox);
center_left_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 4);
gtk_box_pack_start (GTK_BOX (center_hbox), center_left_vbox, FALSE, FALSE, 0);
gtk_widget_show (center_left_vbox);
center_right_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
gtk_box_pack_start (GTK_BOX (center_hbox), center_right_vbox, FALSE, FALSE, 0);
gtk_widget_show (center_right_vbox);
/* size select frame */
frame = pika_frame_new (size_title);
gtk_box_pack_start (GTK_BOX (center_left_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
/* size box */
private->box = g_object_new (PIKA_TYPE_SIZE_BOX,
"width", width,
"height", height,
"unit", unit,
"xresolution", xres,
"yresolution", yres,
"keep-aspect", FALSE,
"edit-resolution", FALSE,
NULL);
gtk_container_add (GTK_CONTAINER (frame), private->box);
gtk_widget_show (private->box);
/* offset frame */
frame = pika_frame_new (_("Offset"));
gtk_box_pack_start (GTK_BOX (center_left_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
/* the offset sizeentry */
adjustment = gtk_adjustment_new (1, 1, 1, 1, 10, 0);
spinbutton = pika_spin_button_new (adjustment, 1.0, 2);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gtk_entry_set_width_chars (GTK_ENTRY (spinbutton), SB_WIDTH);
private->offset = entry = pika_size_entry_new (1, unit, "%p",
TRUE, FALSE, FALSE, SB_WIDTH,
PIKA_SIZE_ENTRY_UPDATE_SIZE);
pika_size_entry_add_field (PIKA_SIZE_ENTRY (entry),
GTK_SPIN_BUTTON (spinbutton), NULL);
gtk_grid_attach (GTK_GRID (entry), spinbutton, 1, 0, 1, 1);
gtk_widget_show (spinbutton);
pika_size_entry_attach_label (PIKA_SIZE_ENTRY (entry),
_("_X:"), 0, 0, 0.0);
pika_size_entry_attach_label (PIKA_SIZE_ENTRY (entry),_("_Y:"), 1, 0, 0.0);
gtk_box_pack_start (GTK_BOX (vbox), entry, FALSE, FALSE, 0);
gtk_widget_show (entry);
pika_size_entry_set_resolution (PIKA_SIZE_ENTRY (entry), 0, xres, FALSE);
pika_size_entry_set_resolution (PIKA_SIZE_ENTRY (entry), 1, yres, FALSE);
pika_size_entry_set_refval_boundaries (PIKA_SIZE_ENTRY (entry), 0, 0, 0);
pika_size_entry_set_refval_boundaries (PIKA_SIZE_ENTRY (entry), 1, 0, 0);
pika_size_entry_set_refval (PIKA_SIZE_ENTRY (entry), 0, 0);
pika_size_entry_set_refval (PIKA_SIZE_ENTRY (entry), 1, 0);
g_signal_connect (entry, "value-changed",
G_CALLBACK (offset_update),
private);
frame = gtk_frame_new (NULL);
gtk_widget_set_halign (frame, GTK_ALIGN_CENTER);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (center_right_vbox), frame, FALSE, FALSE, 0);
gtk_style_context_add_class (gtk_widget_get_style_context (frame),
"pika-offset-area-frame");
gtk_widget_show (frame);
private->area = pika_offset_area_new (width, height);
gtk_container_add (GTK_CONTAINER (frame), private->area);
gtk_widget_show (private->area);
pika_viewable_get_preview_size (viewable, 200, TRUE, TRUE, &width, &height);
pixbuf = pika_viewable_get_pixbuf (viewable, context,
width, height);
if (pixbuf)
pika_offset_area_set_pixbuf (PIKA_OFFSET_AREA (private->area), pixbuf);
g_signal_connect (private->area, "offsets-changed",
G_CALLBACK (offsets_changed),
private);
g_signal_connect (private->box, "notify",
G_CALLBACK (size_notify),
private);
/* Button to center the image on canvas just below the preview. */
button = gtk_button_new_with_mnemonic (_("C_enter"));
gtk_box_pack_start (GTK_BOX (center_right_vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (offset_center_clicked),
private);
frame = pika_frame_new (layers_title);
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
if (PIKA_IS_IMAGE (viewable))
{
GtkWidget *label;
size_group = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
label = gtk_label_new_with_mnemonic (_("Resize _layers:"));
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
gtk_size_group_add_widget (size_group, label);
private->layer_set_combo = combo =
pika_enum_combo_box_new (PIKA_TYPE_ITEM_SET);
gtk_box_pack_start (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
gtk_widget_show (combo);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
pika_int_combo_box_connect (PIKA_INT_COMBO_BOX (combo),
private->layer_set,
G_CALLBACK (pika_int_combo_box_get_active),
&private->layer_set, NULL);
}
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
private->fill_type_combo = combo =
pika_enum_combo_box_new (PIKA_TYPE_FILL_TYPE);
gtk_box_pack_end (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
gtk_widget_show (combo);
pika_int_combo_box_connect (PIKA_INT_COMBO_BOX (combo),
private->fill_type,
G_CALLBACK (pika_int_combo_box_get_active),
&private->fill_type, NULL);
if (PIKA_IS_IMAGE (viewable))
{
GtkWidget *label;
label = gtk_label_new_with_mnemonic (_("_Fill with:"));
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
gtk_size_group_add_widget (size_group, label);
private->text_layers_button = button =
gtk_check_button_new_with_mnemonic (_("Resize _text layers"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button),
private->resize_text_layers);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "toggled",
G_CALLBACK (pika_toggle_button_update),
&private->resize_text_layers);
pika_help_set_help_data (button,
_("Resizing text layers will make them uneditable"),
NULL);
g_object_unref (size_group);
}
return dialog;
}
/* private functions */
static void
resize_dialog_free (ResizeDialog *private)
{
g_object_unref (private->context);
g_slice_free (ResizeDialog, private);
}
static void
resize_dialog_response (GtkWidget *dialog,
gint response_id,
ResizeDialog *private)
{
PikaSizeEntry *entry = PIKA_SIZE_ENTRY (private->offset);
PikaUnit unit;
gint width;
gint height;
gdouble xres;
gdouble yres;
PikaUnit res_unit;
switch (response_id)
{
case RESPONSE_RESET:
resize_dialog_reset (private);
break;
case GTK_RESPONSE_OK:
g_object_get (private->box,
"width", &width,
"height", &height,
"unit", &unit,
"xresolution", &xres,
"yresolution", &yres,
"resolution-unit", &res_unit,
NULL);
private->callback (dialog,
private->viewable,
private->parent_context,
width,
height,
unit,
pika_size_entry_get_refval (entry, 0),
pika_size_entry_get_refval (entry, 1),
xres,
yres,
res_unit,
private->fill_type,
private->layer_set,
private->resize_text_layers,
private->user_data);
break;
default:
gtk_widget_destroy (dialog);
break;
}
}
static void
resize_dialog_reset (ResizeDialog *private)
{
g_object_set (private->box,
"keep-aspect", FALSE,
NULL);
g_object_set (private->box,
"width", private->old_width,
"height", private->old_height,
"unit", private->old_unit,
"xresolution", private->old_xres,
"yresolution", private->old_yres,
"resolution-unit", private->old_res_unit,
NULL);
if (private->layer_set_combo)
pika_int_combo_box_set_active (PIKA_INT_COMBO_BOX (private->layer_set_combo),
private->old_layer_set);
pika_int_combo_box_set_active (PIKA_INT_COMBO_BOX (private->fill_type_combo),
private->old_fill_type);
if (private->text_layers_button)
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (private->text_layers_button),
private->old_resize_text_layers);
pika_context_set_template (private->context, NULL);
pika_size_entry_set_unit (PIKA_SIZE_ENTRY (private->offset),
private->old_unit);
}
static void
size_notify (PikaSizeBox *box,
GParamSpec *pspec,
ResizeDialog *private)
{
gint diff_x = box->width - private->old_width;
gint diff_y = box->height - private->old_height;
pika_offset_area_set_size (PIKA_OFFSET_AREA (private->area),
box->width, box->height);
pika_size_entry_set_refval_boundaries (PIKA_SIZE_ENTRY (private->offset), 0,
MIN (0, diff_x), MAX (0, diff_x));
pika_size_entry_set_refval_boundaries (PIKA_SIZE_ENTRY (private->offset), 1,
MIN (0, diff_y), MAX (0, diff_y));
}
static gint
resize_bound_off_x (ResizeDialog *private,
gint offset_x)
{
PikaSizeBox *box = PIKA_SIZE_BOX (private->box);
if (private->old_width <= box->width)
return CLAMP (offset_x, 0, (box->width - private->old_width));
else
return CLAMP (offset_x, (box->width - private->old_width), 0);
}
static gint
resize_bound_off_y (ResizeDialog *private,
gint off_y)
{
PikaSizeBox *box = PIKA_SIZE_BOX (private->box);
if (private->old_height <= box->height)
return CLAMP (off_y, 0, (box->height - private->old_height));
else
return CLAMP (off_y, (box->height - private->old_height), 0);
}
static void
offset_update (GtkWidget *widget,
ResizeDialog *private)
{
PikaSizeEntry *entry = PIKA_SIZE_ENTRY (private->offset);
gint off_x;
gint off_y;
off_x = resize_bound_off_x (private,
RINT (pika_size_entry_get_refval (entry, 0)));
off_y = resize_bound_off_y (private,
RINT (pika_size_entry_get_refval (entry, 1)));
pika_offset_area_set_offsets (PIKA_OFFSET_AREA (private->area), off_x, off_y);
}
static void
offsets_changed (GtkWidget *area,
gint off_x,
gint off_y,
ResizeDialog *private)
{
pika_size_entry_set_refval (PIKA_SIZE_ENTRY (private->offset), 0, off_x);
pika_size_entry_set_refval (PIKA_SIZE_ENTRY (private->offset), 1, off_y);
}
static void
offset_center_clicked (GtkWidget *widget,
ResizeDialog *private)
{
PikaSizeBox *box = PIKA_SIZE_BOX (private->box);
gint off_x;
gint off_y;
off_x = resize_bound_off_x (private, (box->width - private->old_width) / 2);
off_y = resize_bound_off_y (private, (box->height - private->old_height) / 2);
pika_size_entry_set_refval (PIKA_SIZE_ENTRY (private->offset), 0, off_x);
pika_size_entry_set_refval (PIKA_SIZE_ENTRY (private->offset), 1, off_y);
g_signal_emit_by_name (private->offset, "value-changed", 0);
}
static void
template_changed (PikaContext *context,
PikaTemplate *template,
ResizeDialog *private)
{
PikaUnit unit = private->old_unit;
private->template = template;
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (private->ppi_image), TRUE);
gtk_widget_hide (private->ppi_box);
if (template != NULL)
{
gdouble xres;
gdouble yres;
PikaUnit res_unit;
gboolean resolution_mismatch;
unit = pika_template_get_unit (template);
xres = pika_template_get_resolution_x (template);
yres = pika_template_get_resolution_y (template);
res_unit = pika_template_get_resolution_unit (template);
resolution_mismatch = xres != private->old_xres ||
yres != private->old_yres ||
res_unit != private->old_res_unit;
if (resolution_mismatch &&
unit != PIKA_UNIT_PIXEL)
{
gchar *text;
text = g_strdup_printf (_("Scale template to %.2f ppi"),
private->old_xres);
gtk_button_set_label (GTK_BUTTON (private->ppi_image), text);
g_free (text);
text = g_strdup_printf (_("Set image to %.2f ppi"),
xres);
gtk_button_set_label (GTK_BUTTON (private->ppi_template), text);
g_free (text);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (private->ppi_image),
TRUE);
gtk_widget_show (private->ppi_box);
}
}
ppi_select_toggled (NULL, private);
pika_size_entry_set_unit (PIKA_SIZE_ENTRY (private->offset), unit);
}
static void
ppi_select_toggled (GtkWidget *radio,
ResizeDialog *private)
{
gint width;
gint height;
PikaUnit unit;
gdouble xres;
gdouble yres;
PikaUnit res_unit;
GtkToggleButton *image_button;
gboolean use_image_ppi;
width = private->old_width;
height = private->old_height;
xres = private->old_xres;
yres = private->old_yres;
res_unit = private->old_res_unit;
unit = private->old_unit;
image_button = GTK_TOGGLE_BUTTON (private->ppi_image);
use_image_ppi = gtk_toggle_button_get_active (image_button);
if (private->template != NULL)
{
width = pika_template_get_width (private->template);
height = pika_template_get_height (private->template);
unit = pika_template_get_unit (private->template);
xres = pika_template_get_resolution_x (private->template);
yres = pika_template_get_resolution_y (private->template);
res_unit = pika_template_get_resolution_unit (private->template);
}
if (private->template != NULL &&
unit != PIKA_UNIT_PIXEL)
{
if (use_image_ppi)
{
width = ceil (width * (private->old_xres / xres));
height = ceil (height * (private->old_yres / yres));
xres = private->old_xres;
yres = private->old_yres;
}
g_object_set (private->box,
"xresolution", xres,
"yresolution", yres,
"resolution-unit", res_unit,
NULL);
}
else
{
g_object_set (private->box,
"xresolution", private->old_xres,
"yresolution", private->old_yres,
"resolution-unit", private->old_res_unit,
NULL);
}
g_object_set (private->box,
"width", width,
"height", height,
"unit", unit,
NULL);
}
static void
reset_template_clicked (GtkWidget *button,
ResizeDialog *private)
{
pika_context_set_template (private->context, NULL);
}
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