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/*
* $Id: scale.c 23854 2021-06-14 16:36:54Z yeti-dn $
* Copyright (C) 2003-2021 David Necas (Yeti), Petr Klapetek.
* E-mail: yeti@gwyddion.net, klapetek@gwyddion.net.
*
* 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 2 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, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include <gtk/gtk.h>
#include <libgwyddion/gwymacros.h>
#include <libgwyddion/gwymath.h>
#include <libprocess/gwyprocesstypes.h>
#include <libprocess/filters.h>
#include <libgwydgets/gwystock.h>
#include <libgwymodule/gwymodule-process.h>
#include <app/gwyapp.h>
#define RUN_MODES (GWY_RUN_IMMEDIATE | GWY_RUN_INTERACTIVE)
enum {
PARAM_RATIO,
PARAM_PROPORTIONAL,
PARAM_ASPECT_RATIO,
PARAM_INTERPOLATION,
PARAM_XRES,
PARAM_YRES,
};
typedef struct {
GwyParams *params;
gint orig_xres;
gint orig_yres;
} ModuleArgs;
typedef struct {
ModuleArgs *args;
GtkWidget *dialog;
GwyParamTable *table;
} ModuleGUI;
static gboolean module_register (void);
static GwyParamDef* define_module_params(void);
static void scale (GwyContainer *data,
GwyRunType run);
static GwyDialogOutcome run_gui (ModuleArgs *args);
static void param_changed (ModuleGUI *gui,
gint id);
static GwyModuleInfo module_info = {
GWY_MODULE_ABI_VERSION,
&module_register,
N_("Scales data by arbitrary factor."),
"Yeti <yeti@gwyddion.net>",
"2.0",
"David Nečas (Yeti) & Petr Klapetek & Dirk Kähler",
"2003",
};
GWY_MODULE_QUERY2(module_info, scale)
static gboolean
module_register(void)
{
gwy_process_func_register("scale",
(GwyProcessFunc)&scale,
N_("/_Basic Operations/_Scale..."),
GWY_STOCK_SCALE,
RUN_MODES,
GWY_MENU_FLAG_DATA,
N_("Scale data"));
return TRUE;
}
static GwyParamDef*
define_module_params(void)
{
static GwyParamDef *paramdef = NULL;
if (paramdef)
return paramdef;
paramdef = gwy_param_def_new();
gwy_param_def_set_function_name(paramdef, gwy_process_func_current());
gwy_param_def_add_double(paramdef, PARAM_RATIO, "ratio", _("Scale by _ratio"), 0.001, 100.0, 1.0);
gwy_param_def_add_boolean(paramdef, PARAM_PROPORTIONAL, "proportional", _("_Proportional scaling"), TRUE);
/* We save the aspect ratio in settings, but the user does not control it directly. */
gwy_param_def_add_double(paramdef, PARAM_ASPECT_RATIO, "aspectratio", NULL, G_MINDOUBLE, G_MAXDOUBLE, 1.0);
/* The user can control directly the pixel dimensions, but we do not save them. The default for a different
* image is the same scaling and aspect ratios, not the same dimensions. */
gwy_param_def_add_int(paramdef, PARAM_XRES, NULL, _("New _width"), 2, 16384, 256);
gwy_param_def_add_int(paramdef, PARAM_YRES, NULL, _("New _height"), 2, 16384, 256);
gwy_param_def_add_enum(paramdef, PARAM_INTERPOLATION, "interp", NULL, GWY_TYPE_INTERPOLATION_TYPE,
GWY_INTERPOLATION_LINEAR);
return paramdef;
}
static void
scale(GwyContainer *data, GwyRunType run)
{
GwyDataField *fields[3];
gint xres, yres, oldid, newid, i;
gdouble ratio, aspectratio;
GwyInterpolationType interp;
ModuleArgs args;
GwyParams *params;
g_return_if_fail(run & RUN_MODES);
gwy_app_data_browser_get_current(GWY_APP_DATA_FIELD, fields + 0,
GWY_APP_MASK_FIELD, fields + 1,
GWY_APP_SHOW_FIELD, fields + 2,
GWY_APP_DATA_FIELD_ID, &oldid,
0);
g_return_if_fail(fields[0]);
args.orig_xres = gwy_data_field_get_xres(fields[0]);
args.orig_yres = gwy_data_field_get_yres(fields[0]);
params = args.params = gwy_params_new_from_settings(define_module_params());
if (gwy_params_get_boolean(params, PARAM_PROPORTIONAL))
gwy_params_set_double(params, PARAM_ASPECT_RATIO, 1.0);
ratio = gwy_params_get_double(params, PARAM_RATIO);
aspectratio = gwy_params_get_double(params, PARAM_ASPECT_RATIO);
gwy_params_set_int(params, PARAM_XRES, GWY_ROUND(ratio*args.orig_xres));
gwy_params_set_int(params, PARAM_YRES, GWY_ROUND(aspectratio*ratio*args.orig_yres));
if (run == GWY_RUN_INTERACTIVE) {
GwyDialogOutcome outcome = run_gui(&args);
gwy_params_save_to_settings(params);
if (outcome != GWY_DIALOG_PROCEED)
goto end;
}
xres = gwy_params_get_int(params, PARAM_XRES);
yres = gwy_params_get_int(params, PARAM_YRES);
interp = gwy_params_get_enum(params, PARAM_INTERPOLATION);
fields[0] = gwy_data_field_new_resampled(fields[0], xres, yres, interp);
if (fields[1]) {
fields[1] = gwy_data_field_new_resampled(fields[1], xres, yres, GWY_INTERPOLATION_LINEAR);
gwy_data_field_threshold(fields[1], 0.5, 0.0, 1.0);
}
if (fields[2])
fields[2] = gwy_data_field_new_resampled(fields[2], xres, yres, interp);
newid = gwy_app_data_browser_add_data_field(fields[0], data, TRUE);
gwy_app_sync_data_items(data, data, oldid, newid, FALSE,
GWY_DATA_ITEM_GRADIENT,
GWY_DATA_ITEM_RANGE,
GWY_DATA_ITEM_MASK_COLOR,
0);
if (fields[1])
gwy_container_set_object(data, gwy_app_get_mask_key_for_id(newid), fields[1]);
if (fields[2])
gwy_container_set_object(data, gwy_app_get_show_key_for_id(newid), fields[2]);
gwy_app_set_data_field_title(data, newid, _("Scaled Data"));
gwy_app_channel_log_add_proc(data, oldid, newid);
for (i = 0; i < 3; i++)
GWY_OBJECT_UNREF(fields[i]);
end:
g_object_unref(params);
}
static GwyDialogOutcome
run_gui(ModuleArgs *args)
{
GwyParamTable *table;
GwyDialog *dialog;
ModuleGUI gui;
gdouble minratio, maxratio, step = 1e-4;
gui.args = args;
gui.dialog = gwy_dialog_new(gwy_sgettext("verb|Scale"));
dialog = GWY_DIALOG(gui.dialog);
gwy_dialog_add_buttons(dialog, GWY_RESPONSE_RESET, GTK_RESPONSE_CANCEL, GTK_RESPONSE_OK, 0);
table = gui.table = gwy_param_table_new(args->params);
gwy_param_table_append_slider(table, PARAM_RATIO);
gwy_param_table_slider_set_mapping(table, PARAM_RATIO, GWY_SCALE_MAPPING_LOG);
minratio = GWY_ROUND(2.0/MIN(args->orig_xres, args->orig_yres)/step)*step;
maxratio = 16384.0/MAX(args->orig_xres, args->orig_yres);
gwy_param_table_slider_restrict_range(table, PARAM_RATIO, minratio, maxratio);
gwy_param_table_slider_set_digits(table, PARAM_RATIO, 4);
gwy_param_table_append_checkbox(table, PARAM_PROPORTIONAL);
gwy_param_table_append_slider(table, PARAM_XRES);
gwy_param_table_set_unitstr(table, PARAM_XRES, _("px"));
gwy_param_table_slider_set_mapping(table, PARAM_XRES, GWY_SCALE_MAPPING_LOG);
gwy_param_table_append_slider(table, PARAM_YRES);
gwy_param_table_set_unitstr(table, PARAM_YRES, _("px"));
gwy_param_table_slider_set_mapping(table, PARAM_YRES, GWY_SCALE_MAPPING_LOG);
gwy_param_table_append_combo(table, PARAM_INTERPOLATION);
gwy_dialog_add_content(dialog, gwy_param_table_widget(table), FALSE, FALSE, 0);
gwy_dialog_add_param_table(dialog, table);
g_signal_connect_swapped(table, "param-changed", G_CALLBACK(param_changed), &gui);
return gwy_dialog_run(dialog);
}
static void
param_changed(ModuleGUI *gui, gint id)
{
ModuleArgs *args = gui->args;
GwyParams *params = args->params;
GwyParamTable *table = gui->table;
gboolean proportional = gwy_params_get_boolean(params, PARAM_PROPORTIONAL);
if (id < 0 || id == PARAM_PROPORTIONAL) {
gwy_param_table_set_sensitive(table, PARAM_RATIO, proportional);
if (proportional)
gwy_params_set_double(params, PARAM_ASPECT_RATIO, 1.0);
}
if (id < 0 || id == PARAM_RATIO || (id == PARAM_PROPORTIONAL && proportional)) {
gdouble ratio = gwy_params_get_double(params, PARAM_RATIO);
gdouble aspectratio = gwy_params_get_double(params, PARAM_ASPECT_RATIO);
gwy_param_table_set_int(table, PARAM_XRES, GWY_ROUND(ratio*args->orig_xres));
gwy_param_table_set_int(table, PARAM_YRES, GWY_ROUND(aspectratio*ratio*args->orig_yres));
}
if (id == PARAM_XRES || id == PARAM_YRES) {
gdouble xres = gwy_params_get_int(params, PARAM_XRES);
gdouble yres = gwy_params_get_int(params, PARAM_YRES);
if (proportional) {
gdouble ratio = (id == PARAM_XRES ? xres/args->orig_xres : yres/args->orig_yres);
gwy_param_table_set_double(table, PARAM_RATIO, ratio);
ratio = gwy_params_get_double(params, PARAM_RATIO);
gwy_param_table_set_int(table, PARAM_YRES, GWY_ROUND(ratio*args->orig_yres));
gwy_param_table_set_int(table, PARAM_XRES, GWY_ROUND(ratio*args->orig_xres));
}
else
gwy_params_set_double(params, PARAM_ASPECT_RATIO, yres/args->orig_yres * args->orig_xres/xres);
}
}
/* vim: set cin columns=120 tw=118 et ts=4 sw=4 cino=>1s,e0,n0,f0,{0,}0,^0,\:1s,=0,g1s,h0,t0,+1s,c3,(0,u0 : */
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