PIKApp/plug-ins/pikaressionist/paper.c

224 lines
7.6 KiB
C

/* 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 <string.h>
#include <gtk/gtk.h>
#include <libpika/pika.h>
#include <libpika/pikaui.h>
#include "pikaressionist.h"
#include "ppmtool.h"
#include "paper.h"
#include "libpika/stdplugins-intl.h"
static GtkWidget *paper_preview = NULL;
static GtkWidget *paper_invert = NULL;
static GtkWidget *paper_list = NULL;
static GtkWidget *paper_relief_adjust = NULL;
static GtkWidget *paper_scale_adjust = NULL;
static GtkWidget *paper_overlay = NULL;
static void paper_update_preview (void)
{
gint i, j;
guchar *buf, *paper_preview_buffer;
gdouble sc;
ppm_t p = {0, 0, NULL};
ppm_load (pcvals.selected_paper, &p);
sc = p.width > p.height ? p.width : p.height;
sc = 100.0 / sc;
resize (&p, p.width*sc,p.height*sc);
paper_preview_buffer = g_new0 (guchar, 100*100);
for (i = 0, buf = paper_preview_buffer; i < 100; i++, buf += 100)
{
gint k = i * p.width * 3;
if (i < p.height)
{
for (j = 0; j < p.width; j++)
buf[j] = p.col[k + j * 3];
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (paper_invert)))
for (j = 0; j < p.width; j++)
buf[j] = 255 - buf[j];
}
}
pika_preview_area_draw (PIKA_PREVIEW_AREA (paper_preview),
0, 0, 100, 100,
PIKA_GRAY_IMAGE,
paper_preview_buffer,
100);
ppm_kill (&p);
g_free (paper_preview_buffer);
gtk_widget_queue_draw (paper_preview);
}
static void
paper_select (GtkTreeSelection *selection,
gpointer data)
{
GtkTreeIter iter;
GtkTreeModel *model;
if (gtk_tree_selection_get_selected (selection, &model, &iter))
{
gchar *paper;
gtk_tree_model_get (model, &iter, 0, &paper, -1);
if (paper)
{
gchar *fname = g_build_filename ("Paper", paper, NULL);
g_strlcpy (pcvals.selected_paper,
fname, sizeof (pcvals.selected_paper));
paper_update_preview ();
g_free (fname);
g_free (paper);
}
}
}
void
paper_restore (void)
{
reselect (paper_list, pcvals.selected_paper);
pika_label_spin_set_value (PIKA_LABEL_SPIN (paper_relief_adjust), pcvals.paper_relief);
pika_label_spin_set_value (PIKA_LABEL_SPIN (paper_scale_adjust), pcvals.paper_scale);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (paper_invert), pcvals.paper_invert);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (paper_overlay), pcvals.paper_overlay);
}
void
paper_store (void)
{
pcvals.paper_invert = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (paper_invert));
pcvals.paper_overlay = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (paper_overlay));
}
void
create_paperpage (GtkNotebook *notebook)
{
GtkWidget *box1, *thispage, *box2;
GtkWidget *label, *tmpw, *grid;
GtkWidget *view;
GtkWidget *frame;
GtkTreeSelection *selection;
GtkTreeIter iter;
GtkListStore *paper_store_list;
label = gtk_label_new_with_mnemonic (_("P_aper"));
thispage = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_container_set_border_width (GTK_CONTAINER (thispage), 12);
gtk_widget_show (thispage);
box1 = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
gtk_box_pack_start (GTK_BOX (thispage), box1, TRUE, TRUE, 0);
gtk_widget_show (box1);
paper_list = view = create_one_column_list (box1, paper_select);
paper_store_list =
GTK_LIST_STORE (gtk_tree_view_get_model (GTK_TREE_VIEW (view)));
selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (view));
box2 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, FALSE, 0);
gtk_widget_show (box2);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (box2), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
paper_preview = tmpw = pika_preview_area_new ();
gtk_widget_set_size_request (tmpw, 100, 100);
gtk_container_add (GTK_CONTAINER (frame), tmpw);
gtk_widget_show (tmpw);
paper_invert = tmpw = gtk_check_button_new_with_mnemonic ( _("_Invert"));
gtk_box_pack_start (GTK_BOX (box2), tmpw, FALSE, FALSE, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (tmpw), FALSE);
gtk_widget_show (tmpw);
g_signal_connect_swapped (tmpw, "clicked",
G_CALLBACK (paper_select), selection);
pika_help_set_help_data (tmpw, _("Inverts the Papers texture"), NULL);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (tmpw),
pcvals.paper_invert);
paper_overlay = tmpw = gtk_check_button_new_with_mnemonic ( _("O_verlay"));
gtk_box_pack_start (GTK_BOX (box2), tmpw, FALSE, FALSE, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (tmpw), FALSE);
gtk_widget_show (tmpw);
pika_help_set_help_data
(tmpw, _("Applies the paper as it is (without embossing it)"), NULL);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (tmpw),
pcvals.paper_overlay);
grid = gtk_grid_new ();
gtk_grid_set_row_spacing (GTK_GRID (grid), 6);
gtk_grid_set_column_spacing (GTK_GRID (grid), 6);
gtk_box_pack_start (GTK_BOX (thispage), grid, FALSE, FALSE, 0);
gtk_widget_show (grid);
paper_scale_adjust =
pika_scale_entry_new (_("Scale:"), pcvals.paper_scale, 3.0, 150.0, 1);
pika_help_set_help_data (paper_scale_adjust,
_("Specifies the scale of the texture (in percent of original file)"),
NULL);
g_signal_connect (paper_scale_adjust, "value-changed",
G_CALLBACK (pikaressionist_scale_entry_update_double),
&pcvals.paper_scale);
gtk_grid_attach (GTK_GRID (grid), paper_scale_adjust, 0, 0, 3, 1);
gtk_widget_show (paper_scale_adjust);
paper_relief_adjust =
pika_scale_entry_new (_("Relief:"), pcvals.paper_relief, 0.0, 100.0, 1);
pika_help_set_help_data (paper_relief_adjust,
_("Specifies the amount of embossing to apply to the image (in percent)"),
NULL);
g_signal_connect (paper_relief_adjust, "value-changed",
G_CALLBACK (pikaressionist_scale_entry_update_double),
&pcvals.paper_relief);
gtk_grid_attach (GTK_GRID (grid), paper_relief_adjust, 0, 1, 3, 1);
gtk_widget_show (paper_relief_adjust);
if (gtk_tree_model_get_iter_first (GTK_TREE_MODEL (paper_store_list), &iter))
gtk_tree_selection_select_iter (selection, &iter);
paper_select (selection, NULL);
readdirintolist ("Paper", view, pcvals.selected_paper);
gtk_notebook_append_page_menu (notebook, thispage, label, NULL);
}