From e42129241681dde7adae7d20697e7b421682fbb4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 18:23:22 +0200 Subject: Adding upstream version 2.10.22. Signed-off-by: Daniel Baumann --- plug-ins/gimpressionist/utils.c | 411 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 411 insertions(+) create mode 100644 plug-ins/gimpressionist/utils.c (limited to 'plug-ins/gimpressionist/utils.c') diff --git a/plug-ins/gimpressionist/utils.c b/plug-ins/gimpressionist/utils.c new file mode 100644 index 0000000..16244ae --- /dev/null +++ b/plug-ins/gimpressionist/utils.c @@ -0,0 +1,411 @@ +/* GIMP - The GNU Image Manipulation Program + * 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 . + */ + +/* + * utils.c - various utility routines that don't fit anywhere else. Usually + * these routines don't affect the state of the program. + */ + +#include "config.h" + +#include + +#include + +#include "gimpressionist.h" + +#include "libgimp/stdplugins-intl.h" + + +/* Mathematical Utilities */ + +double +dist (double x, double y, double end_x, double end_y) +{ + double dx = end_x - x; + double dy = end_y - y; + return sqrt (dx * dx + dy * dy); +} + +double +getsiz_proto (double x, double y, int n, smvector_t *vec, + double smstrexp, int voronoi) +{ + int i; + double sum, ssum, dst; + int first = 0, last; + + if ((x < 0.0) || (x > 1.0)) + g_warning ("HUH? x = %f\n",x); + +#if 0 + if (from == 0) + { + n = numsmvect; + vec = smvector; + smstrexp = gtk_adjustment_get_value (GTK_ADJUSTMENT (smstrexpadjust)); + voronoi = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (size_voronoi)); + } + else + { + n = pcvals.num_size_vectors; + vec = pcvals.size_vectors; + smstrexp = pcvals.size_strength_exponent; + voronoi = pcvals.size_voronoi; + } +#endif + + if (voronoi) + { + gdouble bestdist = -1.0; + for (i = 0; i < n; i++) + { + dst = dist (x, y, vec[i].x, vec[i].y); + if ((bestdist < 0.0) || (dst < bestdist)) + { + bestdist = dst; + first = i; + } + } + last = first+1; + } + else + { + first = 0; + last = n; + } + + sum = ssum = 0.0; + for (i = first; i < last; i++) + { + gdouble s = vec[i].str; + + dst = dist (x,y,vec[i].x,vec[i].y); + dst = pow (dst, smstrexp); + if (dst < 0.0001) + dst = 0.0001; + s = s / dst; + + sum += vec[i].siz * s; + ssum += 1.0/dst; + } + sum = sum / ssum / 100.0; + return CLAMP (sum, 0.0, 1.0); +} + + +/* String and Path Manipulation Routines */ + + +static GList *parsepath_cached_path = NULL; + +/* This function is memoized. Once it finds the value it permanently + * caches it + * */ +GList * +parsepath (void) +{ + gchar *rc_path, *path; + + if (parsepath_cached_path) + return parsepath_cached_path; + + path = gimp_gimprc_query ("gimpressionist-path"); + if (path) + { + rc_path = g_filename_from_utf8 (path, -1, NULL, NULL, NULL); + g_free (path); + } + else + { + gchar *gimprc = gimp_personal_rc_file ("gimprc"); + gchar *full_path = gimp_config_build_data_path ("gimpressionist"); + gchar *esc_path = g_strescape (full_path, NULL); + + g_message (_("No %s in gimprc:\n" + "You need to add an entry like\n" + "(%s \"%s\")\n" + "to your %s file."), + "gflare-path", "gflare-path", + esc_path, gimp_filename_to_utf8 (gimprc)); + + g_free (gimprc); + g_free (esc_path); + + rc_path = gimp_config_path_expand (full_path, TRUE, NULL); + g_free (full_path); + } + + parsepath_cached_path = gimp_path_parse (rc_path, 256, FALSE, NULL); + + g_free (rc_path); + + return parsepath_cached_path; +} + +void +free_parsepath_cache (void) +{ + if (parsepath_cached_path != NULL) + return; + + g_list_free_full (parsepath_cached_path, (GDestroyNotify) g_free); + parsepath_cached_path = NULL; +} + +gchar * +findfile (const gchar *fn) +{ + GList *rcpath; + GList *thispath; + gchar *filename; + + g_return_val_if_fail (fn != NULL, NULL); + + rcpath = parsepath (); + + thispath = rcpath; + + while (thispath) + { + filename = g_build_filename (thispath->data, fn, NULL); + if (g_file_test (filename, G_FILE_TEST_IS_REGULAR)) + return filename; + g_free (filename); + thispath = thispath->next; + } + return NULL; +} + +/* GUI Routines */ + +void +reselect (GtkWidget *view, + gchar *fname) +{ + GtkTreeModel *model; + GtkTreeSelection *selection; + GtkTreeIter iter; + char *tmpfile; + + tmpfile = strrchr (fname, '/'); + if (tmpfile) + fname = ++tmpfile; + + model = gtk_tree_view_get_model (GTK_TREE_VIEW (view)); + selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (view)); + + if (gtk_tree_model_get_iter_first (model, &iter)) + { + gboolean quit = FALSE; + do + { + gchar *name; + + gtk_tree_model_get (model, &iter, 0, &name, -1); + if (!strcmp(name, fname)) + { + GtkTreePath *tree_path; + gtk_tree_selection_select_iter (selection, &iter); + tree_path = gtk_tree_model_get_path (model, + &iter); + gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (view), + tree_path, + NULL, + TRUE, + 0.5, + 0.5); + gtk_tree_path_free (tree_path); + quit = TRUE; + } + g_free (name); + + } while ((!quit) && gtk_tree_model_iter_next (model, &iter)); + } +} + +static void +readdirintolist_real (const char *subdir, + GtkWidget *view, + char *selected, + gboolean with_filename_column, + gchar *(*get_object_name_cb) (const gchar *dir, + gchar *filename, + void *context), + void *context) +{ + gchar *fpath; + const gchar *de; + GDir *dir; + GList *flist = NULL; + GtkTreeIter iter; + GtkListStore *store; + GtkTreeSelection *selection; + + store = GTK_LIST_STORE (gtk_tree_view_get_model (GTK_TREE_VIEW (view))); + + if (selected) + { + if (!selected[0]) + selected = NULL; + else + { + char *nsel; + + nsel = strrchr (selected, '/'); + if (nsel) selected = ++nsel; + } + } + + dir = g_dir_open (subdir, 0, NULL); + + if (!dir) + return; + + for (;;) + { + gboolean file_exists; + + de = g_dir_read_name (dir); + if (!de) + break; + + fpath = g_build_filename (subdir, de, NULL); + file_exists = g_file_test (fpath, G_FILE_TEST_IS_REGULAR); + g_free (fpath); + + if (!file_exists) + continue; + + flist = g_list_insert_sorted (flist, g_strdup (de), + (GCompareFunc)g_ascii_strcasecmp); + } + g_dir_close (dir); + + selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (view)); + + while (flist) + { + gtk_list_store_append (store, &iter); + /* Set the filename */ + gtk_list_store_set (store, &iter, PRESETS_LIST_COLUMN_FILENAME, + flist->data, -1); + /* Set the object name */ + if (with_filename_column) + { + gchar * object_name; + object_name = get_object_name_cb (subdir, flist->data, context); + if (object_name) + { + gtk_list_store_set (store, &iter, + PRESETS_LIST_COLUMN_OBJECT_NAME, + object_name, -1); + g_free (object_name); + } + else + { + /* Default to the filename */ + gtk_list_store_set (store, &iter, 1, flist->data, -1); + } + } + + if (selected) + { + if (!strcmp (flist->data, selected)) + { + gtk_tree_selection_select_iter (selection, &iter); + } + } + g_free (flist->data); + flist = g_list_remove (flist, flist->data); + } + + if (!selected) + { + if (gtk_tree_model_get_iter_first (GTK_TREE_MODEL (store), &iter)) + gtk_tree_selection_select_iter (selection, &iter); + } +} + +void +readdirintolist_extended (const char *subdir, + GtkWidget *view, + char *selected, + gboolean with_filename_column, + gchar *(*get_object_name_cb) (const gchar *dir, + gchar *filename, + void *context), + void *context) +{ + char *tmpdir; + GList *thispath = parsepath (); + + while (thispath) + { + tmpdir = g_build_filename ((gchar *) thispath->data, subdir, NULL); + readdirintolist_real (tmpdir, view, selected, with_filename_column, + get_object_name_cb, context); + g_free (tmpdir); + thispath = thispath->next; + } +} + +void +readdirintolist (const char *subdir, + GtkWidget *view, + char *selected) +{ + readdirintolist_extended (subdir, view, selected, FALSE, NULL, NULL); +} + +/* + * Creates a radio button. + * box - the containing box. + * orient_type - The orientation ID + * label, help_string - self-describing + * radio_group - + * A pointer to a radio group. The function assigns its value + * as the radio group of the radio button. Afterwards, it assigns it + * a new value of the new radio group of the button. + * This is useful to group buttons. Just reset the variable to NULL, + * to create a new group. + * */ +GtkWidget * +create_radio_button (GtkWidget *box, + int orient_type, + void (*callback) (GtkWidget *wg, void *d), + const gchar *label, + const gchar *help_string, + GSList **radio_group, + GtkWidget **buttons_array) +{ + GtkWidget *tmpw; + + buttons_array[orient_type] = tmpw = + gtk_radio_button_new_with_label ((*radio_group), label); + gtk_box_pack_start (GTK_BOX (box), tmpw, FALSE, FALSE, 0); + gtk_widget_show (tmpw); + + g_signal_connect (tmpw, "clicked", + G_CALLBACK (callback), GINT_TO_POINTER (orient_type)); + gimp_help_set_help_data (tmpw, help_string, NULL); + + *radio_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (tmpw)); + + return tmpw; +} + -- cgit v1.2.3