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|
/*
* $Id: fft_filter_2d.c 26744 2024-10-18 15:03:29Z yeti-dn $
* Copyright (C) 2005 Christopher Anderson, Molecular Imaging Corp.
* E-mail: Chris Anderson (sidewinder.asu@gmail.com)
* Copyright (C) 2011 David Necas (Yeti).
* E-mail: yeti@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/arithmetic.h>
#include <libprocess/elliptic.h>
#include <libprocess/inttrans.h>
#include <libprocess/stats.h>
#include <libgwydgets/gwystock.h>
#include <libgwydgets/gwycombobox.h>
#include <libgwydgets/gwyradiobuttons.h>
#include <libgwymodule/gwymodule-process.h>
#include <app/gwymoduleutils.h>
#include <app/gwyapp.h>
#include "preview.h"
#define FFTF_2D_RUN_MODES (GWY_RUN_IMMEDIATE | GWY_RUN_INTERACTIVE)
/* Convenience macros */
#define get_toggled(obj) \
gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(obj))
#define set_toggled(obj, tog) \
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(obj), tog)
typedef enum {
FFT_ELLIPSE_ADD = 0,
FFT_RECT_ADD = 1,
FFT_ELLIPSE_SUB = 2,
FFT_RECT_SUB = 3,
} EditType;
typedef enum {
PREV_FFT,
PREV_IMAGE,
PREV_FILTERED,
PREV_DIFF,
} PreviewType;
typedef enum {
OUTPUT_FFT = 1 << 0,
OUTPUT_IMAGE = 1 << 1,
OUTPUT_DIFF = 1 << 2
} OutputType;
enum {
SENS_EDIT = 1 << 0,
SENS_UNDO = 1 << 1
};
/* Keep it simple and use a predefined set of zooms, these seem suitable. */
typedef enum {
ZOOM_1 = 1,
ZOOM_4 = 4,
ZOOM_16 = 16
} ZoomType;
typedef struct {
GwyContainer *mydata;
GwyContainer *data;
GwySensitivityGroup *sensgroup;
gulong rect_signal;
gulong ellipse_signal;
GtkWidget *view;
GwyPixmapLayer *view_layer;
GwyPixmapLayer *mask_layer;
EditType edit_mode;
GSList *mode;
PreviewType prev_mode;
GSList *pmode;
ZoomType zoom_mode;
GSList *zoom;
gboolean snap;
OutputType out_mode;
gboolean compute;
} ControlsType;
typedef void (*FieldFillFunc)(GwyDataField*, gint, gint, gint, gint, gdouble);
/* Gwyddion Module Routines */
static gboolean module_register (void);
static void run_main (GwyContainer *data,
GwyRunType run);
/* Signal handlers */
static void selection_finished_cb (GwySelection *selection,
ControlsType *controls);
static void edit_mode_changed_cb (ControlsType *controls);
static void prev_mode_changed_cb (ControlsType *controls);
static void remove_all_cb (ControlsType *controls);
static void fill_all_cb (ControlsType *controls);
static void undo_cb (ControlsType *controls);
static void snap_cb (GtkWidget *check,
ControlsType *controls);
static void zoom_changed (GtkRadioButton *button,
ControlsType *controls);
static void out_mode_changed (GtkToggleButton *check,
ControlsType *controls);
/* Helper Functions */
static gboolean run_dialog (ControlsType *controls);
static GwyVectorLayer* create_vlayer (guint new_mode);
static void switch_layer (guint new_mode,
ControlsType *controls);
static void set_layer_channel (GwyPixmapLayer *layer,
gint channel);
static void do_fft (GwyDataField *dataInput,
GwyDataField *dataOutput);
static void calculate_zooms (GwyContainer *container,
GwyDataField *field,
GwyDataField *mask);
static void set_dfield_modulus(GwyDataField *re,
GwyDataField *im,
GwyDataField *target);
static void fft_filter_2d (GwyDataField *input,
GwyDataField *output_image,
GwyDataField *output_fft,
GwyDataField *mask);
static void save_settings (ControlsType *controls);
static void load_settings (ControlsType *controls);
static const GwyRGBA mask_color = { 0.56, 0.39, 0.07, 0.5 };
static GwyModuleInfo module_info = {
GWY_MODULE_ABI_VERSION,
&module_register,
N_("2D FFT Filtering"),
"Chris Anderson <sidewinder.asu@gmail.com>",
"1.12",
"Chris Anderson, Molecular Imaging Corp.",
"2005",
};
GWY_MODULE_QUERY2(module_info, fft_filter_2d)
static gboolean
module_register(void)
{
gwy_process_func_register("fft_filter_2d",
(GwyProcessFunc)&run_main,
N_("/_Correct Data/_2D FFT Filtering..."),
GWY_STOCK_FFT_FILTER_2D,
FFTF_2D_RUN_MODES,
GWY_MENU_FLAG_DATA,
N_("Two-dimensional FFT filtering"));
return TRUE;
}
static void
run_main(GwyContainer *data, GwyRunType run)
{
GwyDataField *dfield, *mfield, *fft, *filtered, *diff;
GwyDataField *out_image = NULL, *out_fft = NULL, *out_diff = NULL;
gint id, newid;
ControlsType controls;
gboolean response;
g_return_if_fail(run & FFTF_2D_RUN_MODES);
/* Initialise */
controls.rect_signal = controls.ellipse_signal = 0;
controls.edit_mode = FFT_ELLIPSE_ADD;
controls.prev_mode = PREV_FFT;
controls.zoom_mode = ZOOM_1;
controls.out_mode = OUTPUT_IMAGE | OUTPUT_DIFF;
controls.snap = FALSE;
controls.data = data;
controls.compute = TRUE;
load_settings(&controls);
/*XXX: should the mask and presentation get carried through? */
gwy_app_data_browser_get_current(GWY_APP_DATA_FIELD, &dfield,
GWY_APP_DATA_FIELD_ID, &id,
0);
g_return_if_fail(GWY_IS_DATA_FIELD(dfield));
fft = gwy_data_field_new_alike(dfield, FALSE);
do_fft(dfield, fft);
mfield = gwy_data_field_new_alike(fft, TRUE);
gwy_si_unit_set_from_string(gwy_data_field_get_si_unit_z(mfield), NULL);
filtered = gwy_data_field_new_alike(dfield, TRUE);
diff = gwy_data_field_new_alike(dfield, TRUE);
/* Setup the mydata container */
controls.mydata = gwy_container_new();
gwy_container_set_object_by_name(controls.mydata, "/0/data", fft);
gwy_app_sync_data_items(data, controls.mydata, id, 0, FALSE,
GWY_DATA_ITEM_REAL_SQUARE,
0);
calculate_zooms(controls.mydata, fft, mfield);
g_object_unref(fft);
gwy_container_set_string_by_name(controls.mydata,
"/0/base/palette",
g_strdup("DFit"));
gwy_container_set_enum_by_name(controls.mydata, "/0/base/range-type",
GWY_LAYER_BASIC_RANGE_AUTO);
gwy_container_pass_object_by_name(controls.mydata, "/0/mask", mfield);
gwy_rgba_store_to_container(&mask_color, controls.mydata, "/0/mask");
gwy_container_set_object_by_name(controls.mydata, "/1/data",
dfield);
gwy_app_sync_data_items(data, controls.mydata, id, 1, FALSE,
GWY_DATA_ITEM_GRADIENT,
GWY_DATA_ITEM_MASK_COLOR,
GWY_DATA_ITEM_RANGE,
GWY_DATA_ITEM_REAL_SQUARE,
0);
gwy_container_pass_object_by_name(controls.mydata, "/2/data", filtered);
gwy_app_sync_data_items(data, controls.mydata, id, 2, FALSE,
GWY_DATA_ITEM_GRADIENT,
GWY_DATA_ITEM_MASK_COLOR,
/* GWY_DATA_ITEM_RANGE, */
GWY_DATA_ITEM_RANGE_TYPE,
GWY_DATA_ITEM_REAL_SQUARE,
0);
gwy_container_pass_object_by_name(controls.mydata, "/3/data", diff);
gwy_app_sync_data_items(data, controls.mydata, id, 3, FALSE,
GWY_DATA_ITEM_GRADIENT,
GWY_DATA_ITEM_MASK_COLOR,
GWY_DATA_ITEM_REAL_SQUARE,
0);
/* Run the dialog */
response = run_dialog(&controls);
save_settings(&controls);
/* Do the fft filtering */
if (response) {
if (controls.out_mode & (OUTPUT_IMAGE | OUTPUT_DIFF))
out_image = gwy_data_field_new_alike(dfield, FALSE);
if (controls.out_mode & OUTPUT_FFT)
out_fft = gwy_data_field_new_alike(dfield, FALSE);
mfield =
GWY_DATA_FIELD(gwy_container_get_object_by_name(controls.mydata,
"/0/mask"));
fft_filter_2d(dfield, out_image, out_fft, mfield);
if (controls.out_mode & OUTPUT_IMAGE) {
newid = gwy_app_data_browser_add_data_field(out_image, data, TRUE);
gwy_app_sync_data_items(data, data, id, newid, FALSE,
GWY_DATA_ITEM_GRADIENT,
GWY_DATA_ITEM_MASK_COLOR,
GWY_DATA_ITEM_RANGE,
GWY_DATA_ITEM_RANGE_TYPE,
GWY_DATA_ITEM_REAL_SQUARE,
0);
gwy_app_set_data_field_title(data, newid, _("Filtered Data"));
gwy_app_channel_log_add_proc(data, id, newid);
}
if (controls.out_mode & OUTPUT_DIFF) {
out_diff = gwy_data_field_duplicate(dfield);
gwy_data_field_subtract_fields(out_diff, dfield, out_image);
newid = gwy_app_data_browser_add_data_field(out_diff, data, TRUE);
gwy_app_sync_data_items(data, data, id, newid, FALSE,
GWY_DATA_ITEM_GRADIENT,
GWY_DATA_ITEM_MASK_COLOR,
GWY_DATA_ITEM_RANGE,
GWY_DATA_ITEM_RANGE_TYPE,
GWY_DATA_ITEM_REAL_SQUARE,
0);
gwy_app_set_data_field_title(data, newid, _("Difference"));
gwy_app_channel_log_add_proc(data, id, newid);
}
if (controls.out_mode & OUTPUT_FFT) {
newid = gwy_app_data_browser_add_data_field(out_fft, data, TRUE);
gwy_app_sync_data_items(controls.mydata, data, 0, newid, FALSE,
GWY_DATA_ITEM_GRADIENT,
GWY_DATA_ITEM_MASK_COLOR,
GWY_DATA_ITEM_RANGE,
GWY_DATA_ITEM_RANGE_TYPE,
GWY_DATA_ITEM_REAL_SQUARE,
0);
gwy_app_set_data_field_title(data, newid, _("Filtered FFT"));
gwy_app_channel_log_add_proc(data, id, newid);
}
GWY_OBJECT_UNREF(out_diff);
GWY_OBJECT_UNREF(out_image);
GWY_OBJECT_UNREF(out_fft);
}
g_object_unref(controls.mydata);
}
static gboolean
run_dialog(ControlsType *controls)
{
static struct {
guint edit_mode;
const gchar *stock_id;
const gchar *text;
}
const modes[] = {
{
FFT_ELLIPSE_ADD,
GWY_STOCK_MASK_CIRCLE_INCLUSIVE,
N_("Add an ellipse to the FFT mask"),
},
{
FFT_RECT_ADD,
GWY_STOCK_MASK_RECT_INCLUSIVE,
N_("Add a rectangle to the FFT mask"),
},
{
FFT_ELLIPSE_SUB,
GWY_STOCK_MASK_CIRCLE_EXCLUSIVE,
N_("Subtract an ellipse from the FFT mask"),
},
{
FFT_RECT_SUB,
GWY_STOCK_MASK_RECT_EXCLUSIVE,
N_("Subtract a rectangle from the FFT mask"),
},
};
static struct {
guint prev_mode;
const gchar *text;
}
const prev_modes[] = {
{
PREV_FFT,
N_("_FFT mask editor"),
},
{
PREV_IMAGE,
N_("Original _image"),
},
{
PREV_FILTERED,
N_("Fi_ltered image"),
},
{
PREV_DIFF,
N_("Image _difference"),
},
};
static struct {
guint out_mode;
const gchar *text;
}
const out_modes[] = {
{
OUTPUT_IMAGE,
N_("Filtered i_mage"),
},
{
OUTPUT_DIFF,
N_("Ima_ge difference"),
},
{
OUTPUT_FFT,
N_("Filtered FFT mo_dulus"),
},
};
GtkWidget *dialog;
GtkWidget *table, *hbox, *hbox2;
GtkWidget *label;
GtkWidget *image;
GtkWidget *button = NULL;
GtkWidget *check;
GtkRadioButton *group;
GSList *l;
gint i, row, response;
/* Setup the dialog window */
dialog = gtk_dialog_new_with_buttons(_("2D FFT Filtering"), NULL, 0,
_("_Reset"), RESPONSE_RESET,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_OK);
gwy_help_add_to_proc_dialog(GTK_DIALOG(dialog), GWY_HELP_DEFAULT);
/* Setup sensitvity group */
controls->sensgroup = gwy_sensitivity_group_new();
/* Main Horizontal Box (contains the GwyDataView and the control panel) */
hbox = gtk_hbox_new(FALSE, 4);
gtk_box_pack_start(GTK_BOX(gtk_dialog_get_content_area(GTK_DIALOG(dialog))), hbox, TRUE, TRUE, 4);
/* Setup the GwyDataView, base and mask layers */
controls->view = gwy_create_preview(controls->mydata, 0, PREVIEW_SIZE, TRUE);
controls->view_layer
= gwy_data_view_get_base_layer(GWY_DATA_VIEW(controls->view));
controls->mask_layer
= gwy_data_view_get_alpha_layer(GWY_DATA_VIEW(controls->view));
gtk_box_pack_start(GTK_BOX(hbox), controls->view, FALSE, FALSE, 4);
/* setup vector layer */
switch_layer(controls->edit_mode, controls);
/* Setup the control panel */
table = gtk_table_new(16, 2, FALSE);
gtk_table_set_row_spacings(GTK_TABLE(table), 2);
gtk_table_set_col_spacings(GTK_TABLE(table), 6);
gtk_container_set_border_width(GTK_CONTAINER(table), 4);
gtk_box_pack_start(GTK_BOX(hbox), table, TRUE, TRUE, 4);
row = 0;
label = gwy_label_new_header(_("Filter Mask"));
gtk_table_attach(GTK_TABLE(table), label, 0, 2, row, row+1,
GTK_FILL, 0, 0, 0);
row++;
hbox2 = gtk_hbox_new(FALSE, 0);
gtk_table_attach(GTK_TABLE(table), hbox2, 0, 1, row, row+1,
GTK_FILL, 0, 0, 0);
/* MODE/SHAPE Buttons */
group = NULL;
for (i = 0; i < G_N_ELEMENTS(modes); i++) {
button = gtk_radio_button_new_from_widget(group);
gwy_sensitivity_group_add_widget(controls->sensgroup, button,
SENS_EDIT);
g_object_set(button, "draw-indicator", FALSE, NULL);
image = gtk_image_new_from_stock(modes[i].stock_id,
GTK_ICON_SIZE_BUTTON);
gtk_container_add(GTK_CONTAINER(button), image);
gwy_radio_button_set_value(button, modes[i].edit_mode);
gtk_box_pack_start(GTK_BOX(hbox2), button, FALSE, FALSE, 0);
gtk_widget_set_tooltip_text(button, gettext(modes[i].text));
g_signal_connect_swapped(button, "clicked",
G_CALLBACK(edit_mode_changed_cb), controls);
if (!group)
group = GTK_RADIO_BUTTON(button);
}
controls->mode = gtk_radio_button_get_group(group);
gwy_radio_buttons_set_current(controls->mode, controls->edit_mode);
/* Remaining controls: */
hbox2 = gtk_vbox_new(FALSE, 0);
gtk_table_attach(GTK_TABLE(table), hbox2, 1, 2, row, row+3,
GTK_FILL, 0, 4, 0);
button = gwy_stock_like_button_new(_("_Undo"), GTK_STOCK_UNDO);
gwy_sensitivity_group_add_widget(controls->sensgroup, button,
SENS_EDIT | SENS_UNDO);
gtk_widget_set_tooltip_text(button, _("Undo the last change to the filter mask"));
gtk_container_add(GTK_CONTAINER(hbox2), button);
g_signal_connect_swapped(button, "clicked",
G_CALLBACK(undo_cb), controls);
button = gwy_stock_like_button_new(_("_Remove"), GWY_STOCK_MASK_REMOVE);
gwy_sensitivity_group_add_widget(controls->sensgroup, button, SENS_EDIT);
gtk_widget_set_tooltip_text(button, _("Clear the entire filter mask"));
gtk_container_add(GTK_CONTAINER(hbox2), button);
g_signal_connect_swapped(button, "clicked",
G_CALLBACK(remove_all_cb), controls);
button = gwy_stock_like_button_new(_("_Fill"), GWY_STOCK_MASK);
gwy_sensitivity_group_add_widget(controls->sensgroup, button, SENS_EDIT);
gtk_widget_set_tooltip_text(button, _("Fill the entire filter mask"));
gtk_container_add(GTK_CONTAINER(hbox2), button);
g_signal_connect_swapped(button, "clicked",
G_CALLBACK(fill_all_cb), controls);
row++;
button = gtk_check_button_new_with_mnemonic(_("_Snap to origin"));
gwy_sensitivity_group_add_widget(controls->sensgroup, button, SENS_EDIT);
gtk_widget_set_tooltip_text(button, _("Force shapes to center around the origin"));
gtk_table_attach(GTK_TABLE(table), button, 0, 1, row, row+1,
GTK_FILL, 0, 0, 0);
set_toggled(button, controls->snap);
g_signal_connect(button, "clicked", G_CALLBACK(snap_cb), controls);
row++;
gtk_table_set_row_spacing(GTK_TABLE(table), row, 8);
row++;
label = gwy_label_new_header(_("Preview Options"));
gtk_table_attach(GTK_TABLE(table), label, 0, 2, row, row+1,
GTK_FILL, 0, 0, 0);
row++;
label = gtk_label_new(_("Display:"));
gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5);
gtk_table_attach(GTK_TABLE(table), label, 0, 1, row, row+1,
GTK_FILL, GTK_FILL, 0, 2);
row++;
hbox2 = gtk_vbox_new(FALSE, 0);
gtk_table_attach(GTK_TABLE(table), hbox2, 0, 1, row, row+1,
GTK_FILL, 0, 0, 0);
group = NULL;
for (i = 0; i < G_N_ELEMENTS(prev_modes); i++) {
button = gtk_radio_button_new_with_mnemonic_from_widget(group,
gettext(prev_modes[i].text));
gwy_radio_button_set_value(button, prev_modes[i].prev_mode);
gtk_box_pack_start(GTK_BOX(hbox2), button, FALSE, FALSE, 0);
g_signal_connect_swapped(button, "clicked",
G_CALLBACK(prev_mode_changed_cb), controls);
if (!group)
group = GTK_RADIO_BUTTON(button);
}
controls->pmode = gtk_radio_button_get_group(group);
gwy_radio_buttons_set_current(controls->pmode, controls->prev_mode);
gtk_table_set_row_spacing(GTK_TABLE(table), row, 8);
row++;
/* Zoom */
hbox2 = gtk_hbox_new(FALSE, 8);
gtk_table_attach(GTK_TABLE(table), hbox2, 0, 2, row, row+1,
GTK_FILL, 0, 0, 0);
label = gtk_label_new(_("Zoom:"));
gtk_box_pack_start(GTK_BOX(hbox2), label, FALSE, FALSE, 0);
gwy_sensitivity_group_add_widget(controls->sensgroup, label, SENS_EDIT);
controls->zoom
= gwy_radio_buttons_createl(G_CALLBACK(zoom_changed), controls,
controls->zoom_mode,
"1×", ZOOM_1,
"4×", ZOOM_4,
"16×", ZOOM_16,
NULL);
for (l = controls->zoom; l; l = g_slist_next(l)) {
GtkWidget *widget = GTK_WIDGET(l->data);
gtk_box_pack_start(GTK_BOX(hbox2), widget, FALSE, FALSE, 0);
gwy_sensitivity_group_add_widget(controls->sensgroup, widget,
SENS_EDIT);
}
gtk_table_set_row_spacing(GTK_TABLE(table), row, 8);
row++;
/* Output */
label = gwy_label_new_header(_("Output Options"));
gtk_table_attach(GTK_TABLE(table), label, 0, 2, row, row+1,
GTK_FILL, 0, 0, 0);
row++;
label = gtk_label_new(_("Output type:"));
gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5);
gtk_table_attach(GTK_TABLE(table), label, 0, 2, row, row+1,
GTK_FILL, 0, 0, 2);
row++;
for (i = 0; i < G_N_ELEMENTS(out_modes); i++) {
check = gtk_check_button_new_with_mnemonic(_(out_modes[i].text));
g_object_set_data(G_OBJECT(check), "value",
GUINT_TO_POINTER(out_modes[i].out_mode));
if (controls->out_mode & out_modes[i].out_mode)
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(check), TRUE);
gtk_table_attach(GTK_TABLE(table), check, 0, 2, row, row+1,
GTK_FILL, 0, 0, 0);
g_signal_connect(check, "toggled",
G_CALLBACK(out_mode_changed), controls);
row++;
}
gtk_table_set_row_spacing(GTK_TABLE(table), row-1, 8);
gwy_sensitivity_group_set_state(controls->sensgroup, SENS_EDIT, SENS_EDIT);
g_object_unref(controls->sensgroup);
if (controls->prev_mode == PREV_FFT)
zoom_changed(NULL, controls);
gtk_widget_show_all(dialog);
do {
response = gtk_dialog_run(GTK_DIALOG(dialog));
switch (response) {
case GTK_RESPONSE_CANCEL:
case GTK_RESPONSE_DELETE_EVENT:
case GTK_RESPONSE_NONE:
gtk_widget_destroy(dialog);
return FALSE;
case GTK_RESPONSE_OK:
break;
case RESPONSE_RESET:
break;
default:
g_assert_not_reached();
break;
}
} while (response != GTK_RESPONSE_OK);
/* Finalize */
gtk_widget_destroy(dialog);
return TRUE;
}
static void
set_layer_channel(GwyPixmapLayer *layer, gint channel)
{
gchar data_key[30];
gchar grad_key[30];
gchar mm_key[30];
gchar range_key[30];
g_snprintf(data_key, sizeof(data_key), "/%i/data", channel);
g_snprintf(grad_key, sizeof(grad_key), "/%i/base/palette", channel);
g_snprintf(mm_key, sizeof(mm_key), "/%i/base", channel);
g_snprintf(range_key, sizeof(range_key), "/%i/base/range-type", channel);
gwy_pixmap_layer_set_data_key(layer, data_key);
gwy_layer_basic_set_gradient_key(GWY_LAYER_BASIC(layer), grad_key);
gwy_layer_basic_set_min_max_key(GWY_LAYER_BASIC(layer), mm_key);
gwy_layer_basic_set_range_type_key(GWY_LAYER_BASIC(layer), range_key);
}
static void
prev_mode_changed_cb(ControlsType *controls)
{
GwyPixmapLayer *layer, *mlayer;
GwyDataField *dfield, *mfield, *filtered, *diff;
guint new_mode;
guint state = 0;
new_mode = gwy_radio_buttons_get_current(controls->pmode);
if (new_mode != controls->prev_mode) {
layer = gwy_data_view_get_base_layer(GWY_DATA_VIEW(controls->view));
mfield =
GWY_DATA_FIELD(gwy_container_get_object_by_name(controls->mydata,
"/0/mask"));
dfield =
GWY_DATA_FIELD(gwy_container_get_object_by_name(controls->mydata,
"/1/data"));
filtered =
GWY_DATA_FIELD(gwy_container_get_object_by_name(controls->mydata,
"/2/data"));
diff =
GWY_DATA_FIELD(gwy_container_get_object_by_name(controls->mydata,
"/3/data"));
if (!GWY_IS_DATA_FIELD(mfield))
g_debug("No mfield.");
if (!GWY_IS_DATA_FIELD(dfield))
g_debug("No dfield.");
if (!GWY_IS_DATA_FIELD(filtered))
g_debug("No filtered.");
if (!GWY_IS_DATA_FIELD(diff))
g_debug("No diff.");
switch (new_mode) {
case PREV_FFT:
set_layer_channel(layer, 0);
mlayer = controls->mask_layer = gwy_layer_mask_new();
gwy_pixmap_layer_set_data_key(mlayer, "/0/mask");
gwy_layer_mask_set_color_key(GWY_LAYER_MASK(mlayer), "/0/mask");
gwy_data_view_set_alpha_layer(GWY_DATA_VIEW(controls->view),
mlayer);
controls->prev_mode = new_mode;
state = SENS_EDIT;
break;
case PREV_IMAGE:
set_layer_channel(layer, 1);
break;
case PREV_FILTERED:
if (controls->compute) {
fft_filter_2d(dfield, filtered, NULL, mfield);
gwy_data_field_subtract_fields(diff, dfield, filtered);
}
controls->compute = FALSE;
set_layer_channel(layer, 2);
break;
case PREV_DIFF:
if (controls->compute) {
fft_filter_2d(dfield, filtered, NULL, mfield);
gwy_data_field_subtract_fields(diff, dfield, filtered);
}
controls->compute = FALSE;
set_layer_channel(layer, 3);
break;
default:
g_assert_not_reached();
break;
}
gwy_set_data_preview_size(GWY_DATA_VIEW(controls->view), PREVIEW_SIZE);
gwy_sensitivity_group_set_state(controls->sensgroup, SENS_EDIT, state);
if (new_mode == PREV_FFT) {
controls->edit_mode = -1;
edit_mode_changed_cb(controls);
}
else {
gwy_data_view_set_alpha_layer(GWY_DATA_VIEW(controls->view), NULL);
gwy_data_view_set_top_layer(GWY_DATA_VIEW(controls->view), NULL);
controls->mask_layer = NULL;
}
controls->prev_mode = new_mode;
if (new_mode == PREV_FFT)
zoom_changed(NULL, controls);
}
}
static GwyVectorLayer*
create_vlayer(guint new_mode)
{
GwyVectorLayer *vlayer = NULL;
switch (new_mode) {
case FFT_RECT_ADD:
case FFT_RECT_SUB:
vlayer = g_object_new(g_type_from_name("GwyLayerRectangle"), NULL);
gwy_vector_layer_set_selection_key(vlayer, "/0/select/fft/rect");
break;
case FFT_ELLIPSE_ADD:
case FFT_ELLIPSE_SUB:
vlayer = g_object_new(g_type_from_name("GwyLayerEllipse"), NULL);
gwy_vector_layer_set_selection_key(vlayer, "/0/select/fft/ellipse");
break;
default:
g_assert_not_reached();
break;
}
return vlayer;
}
static void
switch_layer(guint new_mode, ControlsType *controls)
{
GwyVectorLayer *vlayer = NULL;
GwySelection *selection;
vlayer = create_vlayer(new_mode);
g_object_set(vlayer,
"snap-to-center", controls->snap,
"draw-reflection", !controls->snap,
NULL);
gwy_data_view_set_top_layer(GWY_DATA_VIEW(controls->view), vlayer);
selection = gwy_vector_layer_ensure_selection(vlayer);
switch (new_mode) {
case FFT_RECT_ADD:
case FFT_RECT_SUB:
if (!controls->rect_signal)
controls->rect_signal
= g_signal_connect(selection, "finished",
G_CALLBACK(selection_finished_cb), controls);
break;
case FFT_ELLIPSE_ADD:
case FFT_ELLIPSE_SUB:
if (!controls->ellipse_signal)
controls->ellipse_signal
= g_signal_connect(selection, "finished",
G_CALLBACK(selection_finished_cb), controls);
break;
default:
g_assert_not_reached();
break;
}
}
static void
edit_mode_changed_cb(ControlsType *controls)
{
guint new_mode;
if (controls->prev_mode != PREV_FFT)
return;
new_mode = gwy_radio_buttons_get_current(controls->mode);
if (controls->edit_mode != new_mode) {
switch_layer(new_mode, controls);
controls->edit_mode = new_mode;
}
}
static void
selection_finished_cb(GwySelection *selection,
ControlsType *controls)
{
GwyDataField *mfield, *fft, *zoomed;
FieldFillFunc fill_func;
const gchar *key;
gdouble sel[4];
gint isel[4];
gint mirror[4];
gdouble value;
gint width, height, zwidth, zheight;
/* Get the selection coordinates. */
if (!gwy_selection_get_object(selection, 0, sel))
return;
mfield = GWY_DATA_FIELD(gwy_container_get_object_by_name(controls->mydata,
"/0/mask"));
fft = GWY_DATA_FIELD(gwy_container_get_object_by_name(controls->mydata,
"/0/data"));
if (!GWY_IS_DATA_FIELD(mfield)) {
g_warning("Mask doesn't exist in container!");
gwy_selection_clear(selection);
return;
}
key = gwy_pixmap_layer_get_data_key(controls->mask_layer);
zoomed = GWY_DATA_FIELD(gwy_container_get_object_by_name(controls->mydata,
key));
if (!GWY_IS_DATA_FIELD(zoomed)) {
g_warning("Cannot get the zoomed field!");
gwy_selection_clear(selection);
return;
}
width = gwy_data_field_get_xres(fft);
height = gwy_data_field_get_yres(fft);
zwidth = gwy_data_field_get_xres(zoomed);
zheight = gwy_data_field_get_yres(zoomed);
isel[0] = gwy_data_field_rtoj(zoomed, sel[0]) + (width - zwidth)/2;
isel[1] = gwy_data_field_rtoi(zoomed, sel[1]) + (height - zheight)/2;
isel[2] = gwy_data_field_rtoj(zoomed, sel[2]) + (width - zwidth)/2;
isel[3] = gwy_data_field_rtoi(zoomed, sel[3]) + (height - zheight)/2;
if (!controls->snap) {
isel[2]++;
isel[3]++;
}
/* because of the offset (see below), must make sure selection is not along
left or top edge */
if (isel[0] == 0)
isel[0] = 1;
if (isel[1] == 0)
isel[1] = 1;
/* For the mirrored selection to look "correct" as far as the FFT goes, it
* must be shifted one pixel to the right, and one pixel down for
* even-sized images. XXX: It looks a bit weird when the selection and
* mask are displayed together. */
mirror[0] = (-isel[2] + width) + (1 - width % 2);
mirror[1] = (-isel[3] + height) + (1 - height % 2);
mirror[2] = (-isel[0] + width) + (1 - width % 2);
mirror[3] = (-isel[1] + height) + (1 - height % 2);
/* change coordinates to widths */
isel[2] -= isel[0];
isel[3] -= isel[1];
mirror[2] -= mirror[0];
mirror[3] -= mirror[1];
/* decide between rectangle and ellipse */
switch (controls->edit_mode) {
case FFT_RECT_ADD:
fill_func = &gwy_data_field_area_fill;
value = 1.0;
break;
case FFT_RECT_SUB:
fill_func = &gwy_data_field_area_fill;
value = 0.0;
break;
case FFT_ELLIPSE_ADD:
fill_func = (FieldFillFunc)&gwy_data_field_elliptic_area_fill;
value = 1.0;
break;
case FFT_ELLIPSE_SUB:
fill_func = (FieldFillFunc)&gwy_data_field_elliptic_area_fill;
value = 0.0;
break;
default:
g_assert_not_reached();
break;
}
/* apply change to mask */
gwy_app_undo_checkpoint(controls->mydata, "/0/mask", NULL);
fill_func(mfield, isel[0], isel[1], isel[2], isel[3], value);
fill_func(mfield, mirror[0], mirror[1], mirror[2], mirror[3], value);
calculate_zooms(controls->mydata, NULL, mfield);
gwy_data_field_data_changed(mfield);
gwy_selection_clear(selection);
gwy_sensitivity_group_set_state(controls->sensgroup, SENS_UNDO, SENS_UNDO);
controls->compute = TRUE;
}
static void
undo_cb(ControlsType *controls)
{
GwyDataField *mfield;
if (!gwy_undo_container_has_undo(controls->mydata))
return;
gwy_undo_undo_container(controls->mydata);
mfield = GWY_DATA_FIELD(gwy_container_get_object_by_name(controls->mydata,
"/0/mask"));
calculate_zooms(controls->mydata, NULL, mfield);
controls->compute = TRUE;
if (!gwy_undo_container_has_undo(controls->mydata))
gwy_sensitivity_group_set_state(controls->sensgroup, SENS_UNDO, 0);
}
static void
remove_all_cb(ControlsType *controls)
{
GwyDataField *mfield;
gwy_app_undo_checkpoint(controls->mydata, "/0/mask", NULL);
mfield = GWY_DATA_FIELD(gwy_container_get_object_by_name(controls->mydata,
"/0/mask"));
gwy_data_field_clear(mfield);
calculate_zooms(controls->mydata, NULL, mfield);
gwy_data_field_data_changed(mfield);
gwy_sensitivity_group_set_state(controls->sensgroup, SENS_UNDO, SENS_UNDO);
controls->compute = TRUE;
}
static void
fill_all_cb(ControlsType *controls)
{
GwyDataField *mfield;
gwy_app_undo_checkpoint(controls->mydata, "/0/mask", NULL);
mfield = GWY_DATA_FIELD(gwy_container_get_object_by_name(controls->mydata,
"/0/mask"));
gwy_data_field_fill(mfield, 1.0);
calculate_zooms(controls->mydata, NULL, mfield);
gwy_data_field_data_changed(mfield);
gwy_sensitivity_group_set_state(controls->sensgroup, SENS_UNDO, SENS_UNDO);
controls->compute = TRUE;
}
static void
snap_cb(GtkWidget *check, ControlsType *controls)
{
GwyVectorLayer *layer =
gwy_data_view_get_top_layer(GWY_DATA_VIEW(controls->view));
controls->snap = get_toggled(check);
g_object_set(layer,
"snap-to-center", controls->snap,
"draw-reflection", !controls->snap,
NULL);
}
static void
zoom_changed(GtkRadioButton *button,
ControlsType *controls)
{
ZoomType zoom_mode = gwy_radio_buttons_get_current(controls->zoom);
gchar key[32];
if (button && zoom_mode == controls->zoom_mode)
return;
controls->zoom_mode = zoom_mode;
if (controls->prev_mode != PREV_FFT)
return;
g_snprintf(key, sizeof(key), "/zoomed/%u", zoom_mode);
gwy_pixmap_layer_set_data_key(controls->view_layer, key);
g_snprintf(key, sizeof(key), "/zoomed-mask/%u", zoom_mode);
gwy_pixmap_layer_set_data_key(controls->mask_layer, key);
gwy_set_data_preview_size(GWY_DATA_VIEW(controls->view), PREVIEW_SIZE);
}
static void
out_mode_changed(GtkToggleButton *check,
ControlsType *controls)
{
OutputType value = GPOINTER_TO_UINT(g_object_get_data(G_OBJECT(check),
"value"));
gboolean active = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(check));
if (active)
controls->out_mode |= value;
else
controls->out_mode &= ~value;
}
/* set_dfield_modulus is copied from fft.c */
static void
set_dfield_modulus(GwyDataField *re, GwyDataField *im, GwyDataField *target)
{
const gdouble *datare, *dataim;
gdouble *data;
gint xres, yres, i;
xres = gwy_data_field_get_xres(re);
yres = gwy_data_field_get_yres(re);
datare = gwy_data_field_get_data_const(re);
dataim = gwy_data_field_get_data_const(im);
data = gwy_data_field_get_data(target);
for (i = xres*yres; i; i--, datare++, dataim++, data++)
*data = sqrt((*datare)*(*datare) + (*dataim)*(*dataim));
}
static void
do_fft(GwyDataField *data_input, GwyDataField *data_output)
{
GwyDataField *r_in, *r_out, *i_out;
GwyWindowingType window = GWY_WINDOWING_LANCZOS;
GwyTransformDirection direction = GWY_TRANSFORM_DIRECTION_FORWARD;
GwyInterpolationType interp = GWY_INTERPOLATION_LINEAR;
gint level = 1; /* subtract mean value */
r_in = gwy_data_field_duplicate(data_input);
r_out = gwy_data_field_new_alike(data_input, TRUE);
i_out = gwy_data_field_new_alike(data_input, TRUE);
/* normalize */
gwy_data_field_multiply(r_in, 1.0
/(gwy_data_field_get_max(r_in)
- gwy_data_field_get_min(r_in)));
/* perform fft */
gwy_data_field_2dfft(r_in, NULL, r_out, i_out,
window, direction, interp,
FALSE, level);
gwy_data_field_2dfft_humanize(r_out);
gwy_data_field_2dfft_humanize(i_out);
set_dfield_modulus(r_out, i_out, data_output);
g_object_unref(r_in);
g_object_unref(r_out);
g_object_unref(i_out);
}
static GwyDataField*
zoom_in(GwyDataField *field)
{
gint xres = gwy_data_field_get_xres(field),
yres = gwy_data_field_get_yres(field);
gint newxres = MIN(MAX(xres/4, 4), xres),
newyres = MIN(MAX(yres/4, 4), yres);
/* Keep parity in the zoomed field. */
if (newxres % 2 != xres % 2)
newxres++;
if (newyres % 2 != yres % 2)
newyres++;
return gwy_data_field_area_extract(field,
(xres - newxres)/2, (yres - newyres)/2,
newxres, newyres);
}
static void
calculate_zooms(GwyContainer *container,
GwyDataField *field, GwyDataField *mask)
{
if (field) {
gwy_container_set_object_by_name(container, "/zoomed/1", field);
field = zoom_in(field);
gwy_container_pass_object_by_name(container, "/zoomed/4", field);
field = zoom_in(field);
gwy_container_pass_object_by_name(container, "/zoomed/16", field);
}
if (mask) {
gwy_container_set_object_by_name(container, "/zoomed-mask/1", mask);
mask = zoom_in(mask);
gwy_container_pass_object_by_name(container, "/zoomed-mask/4", mask);
mask = zoom_in(mask);
gwy_container_pass_object_by_name(container, "/zoomed-mask/16", mask);
}
}
static void
fft_filter_2d(GwyDataField *input,
GwyDataField *output_image, GwyDataField *output_fft,
GwyDataField *mask)
{
GwyDataField *r_in, *i_in, *r_out, *i_out;
/* Run the forward FFT */
r_in = gwy_data_field_duplicate(input);
i_in = GWY_DATA_FIELD(gwy_data_field_new_alike(r_in, TRUE));
r_out = GWY_DATA_FIELD(gwy_data_field_new_alike(r_in, FALSE));
i_out = GWY_DATA_FIELD(gwy_data_field_new_alike(r_in, FALSE));
/*XXX Should I normalize? */
/*
gwy_data_field_multiply(r_in, 1.0
/(gwy_data_field_get_max(r_in)
- gwy_data_field_get_min(r_in)));
*/
gwy_data_field_2dfft_raw(r_in, NULL, r_out, i_out,
GWY_TRANSFORM_DIRECTION_FORWARD);
/* Must be done before gwy_data_field_2dfft_humanize() because it humanizes
* the field by gwy_data_field_fft_postprocess(). */
if (output_fft != NULL) {
set_dfield_modulus(r_out, i_out, output_fft);
gwy_data_field_fft_postprocess(output_fft, TRUE);
}
gwy_data_field_2dfft_humanize(r_out);
gwy_data_field_2dfft_humanize(i_out);
/* Apply mask to the fft */
gwy_data_field_multiply_fields(r_out, r_out, mask);
gwy_data_field_multiply_fields(i_out, i_out, mask);
if (output_fft != NULL)
gwy_data_field_multiply_fields(output_fft, output_fft, mask);
/* Run the inverse FFT */
gwy_data_field_2dfft_dehumanize(r_out);
gwy_data_field_2dfft_dehumanize(i_out);
gwy_data_field_2dfft_raw(r_out, i_out, r_in, i_in,
GWY_TRANSFORM_DIRECTION_BACKWARD);
if (output_image != NULL)
gwy_data_field_copy(r_in, output_image, TRUE);
/* Finalize */
g_object_unref(i_out);
g_object_unref(r_out);
g_object_unref(i_in);
g_object_unref(r_in);
}
static void
save_settings(ControlsType *controls)
{
GwyContainer *settings = gwy_app_settings_get();
gwy_container_set_enum_by_name(settings, "/module/fft_filter_2d/edit_mode",
controls->edit_mode);
gwy_container_set_boolean_by_name(settings, "/module/fft_filter_2d/snap",
controls->snap);
gwy_container_set_enum_by_name(settings, "/module/fft_filter_2d/zoom",
controls->zoom_mode);
gwy_container_set_enum_by_name(settings, "/module/fft_filter_2d/out_mode",
controls->out_mode);
}
static void
load_settings(ControlsType *controls)
{
GwyContainer *settings = gwy_app_settings_get();
gwy_container_gis_enum_by_name(settings, "/module/fft_filter_2d/edit_mode",
&controls->edit_mode);
gwy_container_gis_boolean_by_name(settings, "/module/fft_filter_2d/snap",
&controls->snap);
gwy_container_gis_enum_by_name(settings, "/module/fft_filter_2d/zoom",
&controls->zoom_mode);
gwy_container_gis_enum_by_name(settings, "/module/fft_filter_2d/out_mode",
&controls->out_mode);
if (controls->zoom_mode != ZOOM_1
&& controls->zoom_mode != ZOOM_4
&& controls->zoom_mode != ZOOM_16)
controls->zoom_mode = ZOOM_1;
}
/* vim: set cin 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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