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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:30:19 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:30:19 +0000
commit5c1676dfe6d2f3c837a5e074117b45613fd29a72 (patch)
treecbffb45144febf451e54061db2b21395faf94bfe /plug-ins/flame/flame.c
parentInitial commit. (diff)
downloadgimp-5c1676dfe6d2f3c837a5e074117b45613fd29a72.tar.xz
gimp-5c1676dfe6d2f3c837a5e074117b45613fd29a72.zip
Adding upstream version 2.10.34.upstream/2.10.34upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'plug-ins/flame/flame.c')
-rw-r--r--plug-ins/flame/flame.c1294
1 files changed, 1294 insertions, 0 deletions
diff --git a/plug-ins/flame/flame.c b/plug-ins/flame/flame.c
new file mode 100644
index 0000000..f2e3898
--- /dev/null
+++ b/plug-ins/flame/flame.c
@@ -0,0 +1,1294 @@
+/* flame - cosmic recursive fractal flames
+ * Copyright (C) 1997 Scott Draves <spot@cs.cmu.edu>
+ *
+ * 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 <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <errno.h>
+#include <string.h>
+#include <time.h>
+
+#include <glib/gstdio.h>
+
+#include <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+
+#include "flame.h"
+
+#include "libgimp/stdplugins-intl.h"
+
+
+#define PLUG_IN_PROC "plug-in-flame"
+#define PLUG_IN_BINARY "flame"
+#define PLUG_IN_ROLE "gimp-flame"
+
+#define VARIATION_SAME (-2)
+
+#define BUFFER_SIZE 10000
+
+#define SCALE_WIDTH 150
+#define PREVIEW_SIZE 150
+#define EDIT_PREVIEW_SIZE 85
+#define NMUTANTS 9
+
+#define BLACK_DRAWABLE (-2)
+#define GRADIENT_DRAWABLE (-3)
+#define TABLE_DRAWABLE (-4)
+
+
+struct
+{
+ gint randomize; /* superseded */
+ gint variation;
+ gint32 cmap_drawable;
+ control_point cp;
+} config;
+
+
+/* Declare local functions. */
+
+static void query (void);
+static void run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals);
+static void flame (gint32 drawable_id);
+
+static gboolean flame_dialog (void);
+static void set_flame_preview (void);
+static void load_callback (GtkWidget *widget,
+ gpointer data);
+static void save_callback (GtkWidget *widget,
+ gpointer data);
+static void set_edit_preview (void);
+static void combo_callback (GtkWidget *widget,
+ gpointer data);
+static void init_mutants (void);
+
+
+static gchar buffer[BUFFER_SIZE];
+static GtkWidget *cmap_preview;
+static GtkWidget *flame_preview;
+static gint preview_width, preview_height;
+static GtkWidget *dialog;
+static GtkWidget *load_button = NULL;
+static GtkWidget *save_button = NULL;
+static GtkWidget *file_dialog = NULL;
+static gint load_save;
+
+static GtkWidget *edit_dialog = NULL;
+
+static control_point edit_cp;
+static control_point mutants[NMUTANTS];
+static GtkWidget *edit_previews[NMUTANTS];
+static gdouble pick_speed = 0.2;
+
+static frame_spec f = { 0.0, &config.cp, 1, 0.0 };
+
+
+const GimpPlugInInfo PLUG_IN_INFO =
+{
+ NULL, /* init_proc */
+ NULL, /* quit_proc */
+ query, /* query_proc */
+ run, /* run_proc */
+};
+
+
+MAIN ()
+
+
+static void
+query (void)
+{
+ static const GimpParamDef args[] =
+ {
+ { GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
+ { GIMP_PDB_IMAGE, "image", "Input image (unused)" },
+ { GIMP_PDB_DRAWABLE, "drawable", "Input drawable" }
+ };
+
+ gimp_install_procedure (PLUG_IN_PROC,
+ N_("Create cosmic recursive fractal flames"),
+ "Create cosmic recursive fractal flames",
+ "Scott Draves",
+ "Scott Draves",
+ "1997",
+ N_("_Flame..."),
+ "RGB*",
+ GIMP_PLUGIN,
+ G_N_ELEMENTS (args), 0,
+ args, NULL);
+
+ gimp_plugin_menu_register (PLUG_IN_PROC, "<Image>/Filters/Render/Fractals");
+}
+
+static void
+maybe_init_cp (void)
+{
+ if (0 == config.cp.spatial_oversample)
+ {
+ config.randomize = 0;
+ config.variation = VARIATION_SAME;
+ config.cmap_drawable = GRADIENT_DRAWABLE;
+
+ random_control_point (&config.cp, variation_random);
+
+ config.cp.center[0] = 0.0;
+ config.cp.center[1] = 0.0;
+ config.cp.pixels_per_unit = 100;
+ config.cp.spatial_oversample = 2;
+ config.cp.gamma = 2.0;
+ config.cp.contrast = 1.0;
+ config.cp.brightness = 1.0;
+ config.cp.spatial_filter_radius = 0.75;
+ config.cp.sample_density = 5.0;
+ config.cp.zoom = 0.0;
+ config.cp.nbatches = 1;
+ config.cp.white_level = 200;
+ config.cp.cmap_index = 72;
+ /* cheating */
+ config.cp.width = 256;
+ config.cp.height = 256;
+ }
+}
+
+static void
+run (const gchar *name,
+ gint n_params,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals)
+{
+ static GimpParam values[1];
+ gint32 drawable_id;
+ GimpRunMode run_mode;
+ GimpPDBStatusType status = GIMP_PDB_SUCCESS;
+
+ *nreturn_vals = 1;
+ *return_vals = values;
+
+ run_mode = param[0].data.d_int32;
+ drawable_id = param[2].data.d_drawable;
+
+ INIT_I18N ();
+ gegl_init (NULL, NULL);
+
+ if (run_mode == GIMP_RUN_NONINTERACTIVE)
+ {
+ status = GIMP_PDB_CALLING_ERROR;
+ }
+ else
+ {
+ gimp_get_data (PLUG_IN_PROC, &config);
+ maybe_init_cp ();
+
+ config.cp.width = gimp_drawable_width (drawable_id);
+ config.cp.height = gimp_drawable_height (drawable_id);
+
+ if (run_mode == GIMP_RUN_INTERACTIVE)
+ {
+ if (! flame_dialog ())
+ {
+ status = GIMP_PDB_CANCEL;
+ }
+ }
+ else
+ {
+ /* reusing a drawable_ID from the last run is a bad idea
+ since the drawable might have vanished (bug #37761) */
+ if (config.cmap_drawable >= 0)
+ config.cmap_drawable = GRADIENT_DRAWABLE;
+ }
+ }
+
+ if (status == GIMP_PDB_SUCCESS)
+ {
+ if (gimp_drawable_is_rgb (drawable_id))
+ {
+ gimp_progress_init (_("Drawing flame"));
+
+ flame (drawable_id);
+
+ if (run_mode != GIMP_RUN_NONINTERACTIVE)
+ gimp_displays_flush ();
+
+ gimp_set_data (PLUG_IN_PROC, &config, sizeof (config));
+ }
+ else
+ {
+ status = GIMP_PDB_EXECUTION_ERROR;
+ }
+ }
+
+ values[0].type = GIMP_PDB_STATUS;
+ values[0].data.d_status = status;
+}
+
+static void
+drawable_to_cmap (control_point *cp)
+{
+ gint i, j;
+
+ if (TABLE_DRAWABLE >= config.cmap_drawable)
+ {
+ i = TABLE_DRAWABLE - config.cmap_drawable;
+ get_cmap (i, cp->cmap, 256);
+ }
+ else if (BLACK_DRAWABLE == config.cmap_drawable)
+ {
+ for (i = 0; i < 256; i++)
+ for (j = 0; j < 3; j++)
+ cp->cmap[i][j] = 0.0;
+ }
+ else if (GRADIENT_DRAWABLE == config.cmap_drawable)
+ {
+ gchar *name = gimp_context_get_gradient ();
+ gint num;
+ gdouble *g;
+
+ /* FIXME: "reverse" hardcoded to FALSE. */
+ gimp_gradient_get_uniform_samples (name, 256, FALSE,
+ &num, &g);
+
+ g_free (name);
+
+ for (i = 0; i < 256; i++)
+ for (j = 0; j < 3; j++)
+ cp->cmap[i][j] = g[i*4 + j];
+ g_free (g);
+ }
+ else
+ {
+ GeglBuffer *buffer = gimp_drawable_get_buffer (config.cmap_drawable);
+ gint width = gegl_buffer_get_width (buffer);
+ gint height = gegl_buffer_get_height (buffer);
+ guchar p[3];
+
+ for (i = 0; i < 256; i++)
+ {
+ gegl_buffer_sample (buffer,
+ i % width,
+ (i / width) % height,
+ NULL, p, babl_format ("R'G'B'"),
+ GEGL_SAMPLER_NEAREST, GEGL_ABYSS_NONE);
+
+ for (j = 0; j < 3; j++)
+ cp->cmap[i][j] = p[j] / 255.0;
+ }
+
+ g_object_unref (buffer);
+ }
+}
+
+static void
+flame (gint32 drawable_id)
+{
+ const Babl *format;
+ gint width, height;
+ guchar *tmp;
+ gint bytes;
+
+ width = gimp_drawable_width (drawable_id);
+ height = gimp_drawable_height (drawable_id);
+
+ if (gimp_drawable_has_alpha (drawable_id))
+ format = babl_format ("R'G'B'A u8");
+ else
+ format = babl_format ("R'G'B' u8");
+
+ bytes = babl_format_get_bytes_per_pixel (format);
+
+ tmp = g_new (guchar, width * height * 4);
+
+ /* render */
+ config.cp.width = width;
+ config.cp.height = height;
+ if (config.randomize)
+ random_control_point (&config.cp, config.variation);
+ drawable_to_cmap (&config.cp);
+ render_rectangle (&f, tmp, width, field_both, 4,
+ gimp_progress_update);
+ gimp_progress_update (1.0);
+
+ /* update destination */
+ if (bytes == 4)
+ {
+ GeglBuffer *buffer = gimp_drawable_get_shadow_buffer (drawable_id);
+
+ gegl_buffer_set (buffer, GEGL_RECTANGLE (0, 0, width, height), 0,
+ format, tmp,
+ GEGL_AUTO_ROWSTRIDE);
+
+ g_object_unref (buffer);
+ }
+ else if (bytes == 3)
+ {
+ GeglBuffer *src_buffer = gimp_drawable_get_buffer (drawable_id);
+ GeglBuffer *dest_buffer = gimp_drawable_get_shadow_buffer (drawable_id);
+ gint i, j;
+ guchar *sl;
+
+ sl = g_new (guchar, 3 * width);
+
+ for (i = 0; i < height; i++)
+ {
+ guchar *rr = tmp + 4 * i * width;
+ guchar *sld = sl;
+
+ gegl_buffer_get (src_buffer, GEGL_RECTANGLE (0, i, width, 1), 1.0,
+ format, sl,
+ GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
+
+ for (j = 0; j < width; j++)
+ {
+ gint k, alpha = rr[3];
+
+ for (k = 0; k < 3; k++)
+ {
+ gint t = (rr[k] + ((sld[k] * (256-alpha)) >> 8));
+
+ if (t > 255) t = 255;
+ sld[k] = t;
+ }
+ rr += 4;
+ sld += 3;
+ }
+
+ gegl_buffer_set (dest_buffer, GEGL_RECTANGLE (0, i, width, 1), 0,
+ format, sl,
+ GEGL_AUTO_ROWSTRIDE);
+ }
+
+ g_free (sl);
+
+ g_object_unref (src_buffer);
+ g_object_unref (dest_buffer);
+ }
+
+ g_free (tmp);
+
+ gimp_drawable_merge_shadow (drawable_id, TRUE);
+ gimp_drawable_update (drawable_id, 0, 0, width, height);
+}
+
+static void
+file_response_callback (GtkFileChooser *chooser,
+ gint response_id,
+ gpointer data)
+{
+ if (response_id == GTK_RESPONSE_OK)
+ {
+ gchar *filename = gtk_file_chooser_get_filename (chooser);
+
+ if (load_save)
+ {
+ FILE *f;
+ gint i, c;
+ gchar *ss;
+
+ if (!g_file_test (filename, G_FILE_TEST_IS_REGULAR))
+ {
+ g_message (_("'%s' is not a regular file"),
+ gimp_filename_to_utf8 (filename));
+ g_free (filename);
+ return;
+ }
+
+ f = g_fopen (filename, "rb");
+
+ if (f == NULL)
+ {
+ g_message (_("Could not open '%s' for reading: %s"),
+ gimp_filename_to_utf8 (filename), g_strerror (errno));
+ g_free (filename);
+ return;
+ }
+
+ i = 0;
+ ss = buffer;
+ do
+ {
+ c = getc (f);
+ if (EOF == c)
+ break;
+ ss[i++] = c;
+ }
+ while (i < BUFFER_SIZE && ';' != c);
+ parse_control_point (&ss, &config.cp);
+ fclose (f);
+ /* i want to update the existing dialogue, but it's
+ too painful */
+ gimp_set_data (PLUG_IN_PROC, &config, sizeof (config));
+ /* gtk_widget_destroy(dialog); */
+ set_flame_preview ();
+ set_edit_preview ();
+ }
+ else
+ {
+ FILE *f = g_fopen (filename, "wb");
+
+ if (NULL == f)
+ {
+ g_message (_("Could not open '%s' for writing: %s"),
+ gimp_filename_to_utf8 (filename), g_strerror (errno));
+ g_free (filename);
+ return;
+ }
+
+ print_control_point (f, &config.cp, 0);
+ fclose (f);
+ }
+
+ g_free (filename);
+ }
+
+ gtk_widget_destroy (GTK_WIDGET (chooser));
+
+ if (! gtk_widget_get_sensitive (load_button))
+ gtk_widget_set_sensitive (load_button, TRUE);
+
+ if (! gtk_widget_get_sensitive (save_button))
+ gtk_widget_set_sensitive (save_button, TRUE);
+}
+
+static void
+make_file_dialog (const gchar *title,
+ GtkWidget *parent)
+{
+ file_dialog = gtk_file_chooser_dialog_new (title, GTK_WINDOW (parent),
+ load_save ?
+ GTK_FILE_CHOOSER_ACTION_OPEN :
+ GTK_FILE_CHOOSER_ACTION_SAVE,
+
+ _("_Cancel"), GTK_RESPONSE_CANCEL,
+ load_save ?
+ _("_Open") : _("_Save"),
+ GTK_RESPONSE_OK,
+
+ NULL);
+
+ gtk_dialog_set_default_response (GTK_DIALOG (file_dialog), GTK_RESPONSE_OK);
+ gtk_dialog_set_alternative_button_order (GTK_DIALOG (file_dialog),
+ GTK_RESPONSE_OK,
+ GTK_RESPONSE_CANCEL,
+ -1);
+
+ if (! load_save)
+ gtk_file_chooser_set_do_overwrite_confirmation (GTK_FILE_CHOOSER (file_dialog),
+ TRUE);
+
+ g_object_add_weak_pointer (G_OBJECT (file_dialog), (gpointer) &file_dialog);
+
+ gtk_window_set_destroy_with_parent (GTK_WINDOW (file_dialog), TRUE);
+
+ g_signal_connect (file_dialog, "delete-event",
+ G_CALLBACK (gtk_true),
+ NULL);
+ g_signal_connect (file_dialog, "response",
+ G_CALLBACK (file_response_callback),
+ NULL);
+}
+
+static void
+randomize_callback (GtkWidget *widget,
+ gpointer data)
+{
+ random_control_point (&edit_cp, config.variation);
+ init_mutants ();
+ set_edit_preview ();
+}
+
+static void
+edit_response (GtkWidget *widget,
+ gint response_id,
+ gpointer data)
+{
+ gtk_widget_hide (widget);
+
+ if (response_id == GTK_RESPONSE_OK)
+ {
+ config.cp = edit_cp;
+ set_flame_preview ();
+ }
+}
+
+static void
+init_mutants (void)
+{
+ gint i;
+
+ for (i = 0; i < NMUTANTS; i++)
+ {
+ mutants[i] = edit_cp;
+ random_control_point (mutants + i, config.variation);
+ if (VARIATION_SAME == config.variation)
+ copy_variation (mutants + i, &edit_cp);
+ }
+}
+
+static void
+set_edit_preview (void)
+{
+ gint i, j;
+ guchar *b;
+ control_point pcp;
+ gint nbytes = EDIT_PREVIEW_SIZE * EDIT_PREVIEW_SIZE * 3;
+
+ static frame_spec pf = { 0.0, 0, 1, 0.0 };
+
+ if (NULL == edit_previews[0])
+ return;
+
+ b = g_new (guchar, nbytes);
+ maybe_init_cp ();
+ drawable_to_cmap (&edit_cp);
+ for (i = 0; i < 3; i++)
+ for (j = 0; j < 3; j++)
+ {
+ gint mut = i*3 + j;
+
+ pf.cps = &pcp;
+ if (1 == i && 1 == j)
+ {
+ pcp = edit_cp;
+ }
+ else
+ {
+ control_point ends[2];
+ ends[0] = edit_cp;
+ ends[1] = mutants[mut];
+ ends[0].time = 0.0;
+ ends[1].time = 1.0;
+ interpolate (ends, 2, pick_speed, &pcp);
+ }
+ pcp.pixels_per_unit =
+ (pcp.pixels_per_unit * EDIT_PREVIEW_SIZE) / pcp.width;
+ pcp.width = EDIT_PREVIEW_SIZE;
+ pcp.height = EDIT_PREVIEW_SIZE;
+
+ pcp.sample_density = 1;
+ pcp.spatial_oversample = 1;
+ pcp.spatial_filter_radius = 0.5;
+
+ drawable_to_cmap (&pcp);
+
+ render_rectangle (&pf, b, EDIT_PREVIEW_SIZE, field_both, 3, NULL);
+
+ gimp_preview_area_draw (GIMP_PREVIEW_AREA (edit_previews[mut]),
+ 0, 0, EDIT_PREVIEW_SIZE, EDIT_PREVIEW_SIZE,
+ GIMP_RGB_IMAGE,
+ b,
+ EDIT_PREVIEW_SIZE * 3);
+ }
+ g_free (b);
+}
+
+static void
+edit_preview_size_allocate (GtkWidget *widget)
+{
+ set_edit_preview ();
+}
+
+static void
+preview_clicked (GtkWidget *widget,
+ gpointer data)
+{
+ gint mut = GPOINTER_TO_INT (data);
+
+ if (mut == 4)
+ {
+ control_point t = edit_cp;
+ init_mutants ();
+ edit_cp = t;
+ }
+ else
+ {
+ control_point ends[2];
+ ends[0] = edit_cp;
+ ends[1] = mutants[mut];
+ ends[0].time = 0.0;
+ ends[1].time = 1.0;
+ interpolate (ends, 2, pick_speed, &edit_cp);
+ }
+ set_edit_preview ();
+}
+
+static void
+edit_callback (GtkWidget *widget,
+ GtkWidget *parent)
+{
+ edit_cp = config.cp;
+
+ if (edit_dialog == NULL)
+ {
+ GtkWidget *main_vbox;
+ GtkWidget *frame;
+ GtkWidget *table;
+ GtkWidget *vbox;
+ GtkWidget *hbox;
+ GtkWidget *button;
+ GtkWidget *combo;
+ GtkWidget *label;
+ GtkObject *adj;
+ gint i, j;
+
+ edit_dialog = gimp_dialog_new (_("Edit Flame"), PLUG_IN_ROLE,
+ parent, GTK_DIALOG_DESTROY_WITH_PARENT,
+ gimp_standard_help_func, PLUG_IN_PROC,
+
+ _("_Cancel"), GTK_RESPONSE_CANCEL,
+ _("_OK"), GTK_RESPONSE_OK,
+
+ NULL);
+
+ gtk_dialog_set_alternative_button_order (GTK_DIALOG (edit_dialog),
+ GTK_RESPONSE_OK,
+ GTK_RESPONSE_CANCEL,
+ -1);
+
+ g_signal_connect (edit_dialog, "response",
+ G_CALLBACK (edit_response),
+ edit_dialog);
+
+ 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 (edit_dialog))),
+ main_vbox, FALSE, FALSE, 0);
+
+ frame = gimp_frame_new (_("Directions"));
+ gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
+ gtk_widget_show (frame);
+
+ table = gtk_table_new (3, 3, FALSE);
+ gtk_table_set_row_spacings (GTK_TABLE (table), 6);
+ gtk_table_set_col_spacings (GTK_TABLE (table), 6);
+ gtk_container_add (GTK_CONTAINER (frame), table);
+ gtk_widget_show (table);
+
+ for (i = 0; i < 3; i++)
+ for (j = 0; j < 3; j++)
+ {
+ gint mut = i * 3 + j;
+
+ edit_previews[mut] = gimp_preview_area_new ();
+ gtk_widget_set_size_request (edit_previews[mut],
+ EDIT_PREVIEW_SIZE,
+ EDIT_PREVIEW_SIZE);
+ button = gtk_button_new ();
+ gtk_container_add (GTK_CONTAINER(button), edit_previews[mut]);
+ gtk_table_attach (GTK_TABLE (table), button, i, i+1, j, j+1,
+ GTK_EXPAND, GTK_EXPAND, 0, 0);
+ gtk_widget_show (edit_previews[mut]);
+
+ gtk_widget_show (button);
+
+ g_signal_connect (button, "clicked",
+ G_CALLBACK (preview_clicked),
+ GINT_TO_POINTER (mut));
+ }
+
+ g_signal_connect (edit_previews[0], "size-allocate",
+ G_CALLBACK (edit_preview_size_allocate),
+ NULL);
+
+ frame = gimp_frame_new (_("Controls"));
+ 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);
+
+ table = gtk_table_new (1, 3, FALSE);
+ gtk_table_set_col_spacings (GTK_TABLE (table), 6);
+ gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
+ gtk_widget_show(table);
+
+ adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
+ _("_Speed:"), SCALE_WIDTH, 0,
+ pick_speed,
+ 0.05, 0.5, 0.01, 0.1, 2,
+ TRUE, 0, 0,
+ NULL, NULL);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (gimp_double_adjustment_update),
+ &pick_speed);
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (set_edit_preview),
+ NULL);
+
+ hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
+ gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
+ gtk_widget_show (hbox);
+
+ button = gtk_button_new_with_mnemonic( _("_Randomize"));
+ gtk_misc_set_padding (GTK_MISC (gtk_bin_get_child (GTK_BIN (button))),
+ 2, 0);
+ gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
+ gtk_widget_show (button);
+
+ g_signal_connect_swapped (button, "clicked",
+ G_CALLBACK (randomize_callback),
+ NULL);
+
+ combo = gimp_int_combo_box_new (_("Same"), VARIATION_SAME,
+ _("Random"), variation_random,
+ _("Linear"), 0,
+ _("Sinusoidal"), 1,
+ _("Spherical"), 2,
+ _("Swirl"), 3,
+ _("Horseshoe"), 4,
+ _("Polar"), 5,
+ _("Bent"), 6,
+ _("Handkerchief"), 7,
+ _("Heart"), 8,
+ _("Disc"), 9,
+ _("Spiral"), 10,
+ _("Hyperbolic"), 11,
+ _("Diamond"), 12,
+ _("Ex"), 13,
+ _("Julia"), 14,
+ _("Waves"), 15,
+ _("Fisheye"), 16,
+ _("Popcorn"), 17,
+ _("Exponential"), 18,
+ _("Power"), 19,
+ _("Cosine"), 20,
+ _("Rings"), 21,
+ _("Fan"), 22,
+ _("Eyefish"), 23,
+ _("Bubble"), 24,
+ _("Cylinder"), 25,
+ _("Noise"), 26,
+ _("Blur"), 27,
+ _("Gaussian"), 28,
+ NULL);
+
+ gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (combo),
+ VARIATION_SAME);
+
+ g_signal_connect (combo, "changed",
+ G_CALLBACK (combo_callback),
+ &config.variation);
+
+ gtk_box_pack_end (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
+ gtk_widget_show (combo);
+
+ label = gtk_label_new_with_mnemonic (_("_Variation:"));
+ gtk_box_pack_end (GTK_BOX (hbox), label, FALSE, FALSE, 0);
+ gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
+ gtk_widget_show (label);
+
+ gtk_widget_show (main_vbox);
+
+ init_mutants ();
+ }
+
+ set_edit_preview ();
+
+ gtk_window_present (GTK_WINDOW (edit_dialog));
+}
+
+static void
+load_callback (GtkWidget *widget,
+ gpointer data)
+{
+ if (! file_dialog)
+ {
+ load_save = 1;
+ make_file_dialog (_("Load Flame"), gtk_widget_get_toplevel (widget));
+
+ gtk_widget_set_sensitive (save_button, FALSE);
+ }
+
+ gtk_window_present (GTK_WINDOW (file_dialog));
+}
+
+static void
+save_callback (GtkWidget *widget,
+ gpointer data)
+{
+ if (! file_dialog)
+ {
+ load_save = 0;
+ make_file_dialog (_("Save Flame"), gtk_widget_get_toplevel (widget));
+
+ gtk_widget_set_sensitive (load_button, FALSE);
+ }
+
+ gtk_window_present (GTK_WINDOW (file_dialog));
+}
+
+static void
+combo_callback (GtkWidget *widget,
+ gpointer data)
+{
+ gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (widget), (gint *) data);
+
+ if (VARIATION_SAME != config.variation)
+ random_control_point (&edit_cp, config.variation);
+
+ init_mutants ();
+ set_edit_preview ();
+}
+
+static void
+set_flame_preview (void)
+{
+ guchar *b;
+ control_point pcp;
+
+ static frame_spec pf = {0.0, 0, 1, 0.0};
+
+ if (NULL == flame_preview)
+ return;
+
+ b = g_new (guchar, preview_width * preview_height * 3);
+
+ maybe_init_cp ();
+ drawable_to_cmap (&config.cp);
+
+ pf.cps = &pcp;
+ pcp = config.cp;
+ pcp.pixels_per_unit =
+ (pcp.pixels_per_unit * preview_width) / pcp.width;
+ pcp.width = preview_width;
+ pcp.height = preview_height;
+ pcp.sample_density = 1;
+ pcp.spatial_oversample = 1;
+ pcp.spatial_filter_radius = 0.1;
+ render_rectangle (&pf, b, preview_width, field_both, 3, NULL);
+
+ gimp_preview_area_draw (GIMP_PREVIEW_AREA (flame_preview),
+ 0, 0, preview_width, PREVIEW_SIZE,
+ GIMP_RGB_IMAGE,
+ b,
+ preview_width * 3);
+ g_free (b);
+}
+
+static void
+flame_preview_size_allocate (GtkWidget *preview)
+{
+ set_flame_preview ();
+}
+
+static void
+set_cmap_preview (void)
+{
+ gint i, x, y;
+ guchar b[96];
+ guchar *cmap_buffer, *ptr;
+
+ if (NULL == cmap_preview)
+ return;
+
+ drawable_to_cmap (&config.cp);
+
+ cmap_buffer = g_new (guchar, 32*32*3);
+ ptr = cmap_buffer;
+ for (y = 0; y < 32; y += 4)
+ {
+ for (x = 0; x < 32; x++)
+ {
+ gint j;
+
+ i = x + (y/4) * 32;
+ for (j = 0; j < 3; j++)
+ b[x*3+j] = config.cp.cmap[i][j]*255.0;
+ }
+
+ memcpy (ptr, b, 32*3);
+ ptr += 32*3;
+ memcpy (ptr, b, 32*3);
+ ptr += 32*3;
+ memcpy (ptr, b, 32*3);
+ ptr += 32*3;
+ memcpy (ptr, b, 32*3);
+ ptr += 32*3;
+ }
+
+ gimp_preview_area_draw (GIMP_PREVIEW_AREA (cmap_preview),
+ 0, 0, 32, 32,
+ GIMP_RGB_IMAGE,
+ cmap_buffer,
+ 32 * 3);
+ g_free (cmap_buffer);
+}
+
+static void
+cmap_callback (GtkWidget *widget,
+ gpointer data)
+{
+ gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (widget),
+ &config.cmap_drawable);
+
+ set_cmap_preview ();
+ set_flame_preview ();
+ /* set_edit_preview(); */
+}
+
+static gboolean
+cmap_constrain (gint32 image_id,
+ gint32 drawable_id,
+ gpointer data)
+{
+ return ! gimp_drawable_is_indexed (drawable_id);
+}
+
+
+static gboolean
+flame_dialog (void)
+{
+ GtkWidget *main_vbox;
+ GtkWidget *notebook;
+ GtkWidget *label;
+ GtkWidget *frame;
+ GtkWidget *abox;
+ GtkWidget *button;
+ GtkWidget *table;
+ GtkWidget *box;
+ GtkObject *adj;
+ gboolean run;
+
+ gimp_ui_init (PLUG_IN_BINARY, TRUE);
+
+ dialog = gimp_dialog_new (_("Flame"), PLUG_IN_ROLE,
+ NULL, 0,
+ gimp_standard_help_func, PLUG_IN_PROC,
+
+ _("_Cancel"), GTK_RESPONSE_CANCEL,
+ _("_OK"), GTK_RESPONSE_OK,
+
+ NULL);
+
+ gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
+ GTK_RESPONSE_OK,
+ GTK_RESPONSE_CANCEL,
+ -1);
+
+ gimp_window_set_transient (GTK_WINDOW (dialog));
+
+ 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, FALSE, FALSE, 0);
+ gtk_widget_show (main_vbox);
+
+ box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
+ gtk_box_pack_start (GTK_BOX (main_vbox), box, FALSE, FALSE, 0);
+ gtk_widget_show (box);
+
+ abox = gtk_alignment_new (0.0, 0.0, 0.0, 0.0);
+ gtk_box_pack_start (GTK_BOX (box), abox, FALSE, FALSE, 0);
+ gtk_widget_show (abox);
+
+ frame = gtk_frame_new (NULL);
+ gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
+ gtk_container_add (GTK_CONTAINER (abox), frame);
+ gtk_widget_show (frame);
+
+ flame_preview = gimp_preview_area_new ();
+ {
+ gdouble aspect = config.cp.width / (double) config.cp.height;
+
+ if (aspect > 1.0)
+ {
+ preview_width = PREVIEW_SIZE;
+ preview_height = PREVIEW_SIZE / aspect;
+ }
+ else
+ {
+ preview_width = PREVIEW_SIZE * aspect;
+ preview_height = PREVIEW_SIZE;
+ }
+ }
+ gtk_widget_set_size_request (flame_preview, preview_width, preview_height);
+ gtk_container_add (GTK_CONTAINER (frame), flame_preview);
+ gtk_widget_show (flame_preview);
+ g_signal_connect (flame_preview, "size-allocate",
+ G_CALLBACK (flame_preview_size_allocate), NULL);
+
+ {
+ GtkWidget *vbox;
+ GtkWidget *vbbox;
+
+ vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
+ gtk_box_pack_start (GTK_BOX (box), vbox, FALSE, FALSE, 0);
+ gtk_widget_show (vbox);
+
+ vbbox= gtk_button_box_new (GTK_ORIENTATION_VERTICAL);
+ gtk_box_set_homogeneous (GTK_BOX (vbbox), FALSE);
+ gtk_box_set_spacing (GTK_BOX (vbbox), 6);
+ gtk_box_pack_start (GTK_BOX (vbox), vbbox, FALSE, FALSE, 0);
+ gtk_widget_show (vbbox);
+
+ button = gtk_button_new_with_mnemonic (_("_Edit"));
+ gtk_box_pack_start (GTK_BOX (vbbox), button, FALSE, FALSE, 0);
+ gtk_widget_show (button);
+
+ g_signal_connect (button, "clicked",
+ G_CALLBACK (edit_callback),
+ dialog);
+
+ load_button = button = gtk_button_new_with_mnemonic (_("_Open"));
+ gtk_box_pack_start (GTK_BOX (vbbox), button, FALSE, FALSE, 0);
+ gtk_widget_show (button);
+
+ g_signal_connect (button, "clicked",
+ G_CALLBACK (load_callback),
+ NULL);
+
+ save_button = button = gtk_button_new_with_mnemonic (_("_Save"));
+ gtk_box_pack_start (GTK_BOX (vbbox), button, FALSE, FALSE, 0);
+ gtk_widget_show (button);
+
+ g_signal_connect (button, "clicked",
+ G_CALLBACK (save_callback),
+ NULL);
+ }
+
+ notebook = gtk_notebook_new ();
+ gtk_box_pack_start (GTK_BOX (main_vbox), notebook, FALSE, FALSE, 0);
+ gtk_widget_show (notebook);
+
+ box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
+ gtk_container_set_border_width (GTK_CONTAINER (box), 12);
+ label = gtk_label_new_with_mnemonic(_("_Rendering"));
+ gtk_notebook_append_page (GTK_NOTEBOOK (notebook), box, label);
+ gtk_widget_show (box);
+
+ table = gtk_table_new (6, 3, FALSE);
+ gtk_table_set_row_spacings (GTK_TABLE (table), 6);
+ gtk_table_set_row_spacing (GTK_TABLE (table), 2, 12);
+ gtk_table_set_col_spacings (GTK_TABLE (table), 6);
+ gtk_box_pack_start (GTK_BOX (box), table, FALSE, FALSE, 0);
+ gtk_widget_show (table);
+
+ adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
+ _("_Brightness:"), SCALE_WIDTH, 5,
+ config.cp.brightness,
+ 0, 5, 0.1, 1, 2,
+ TRUE, 0, 0,
+ NULL, NULL);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (gimp_double_adjustment_update),
+ &config.cp.brightness);
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (set_flame_preview),
+ NULL);
+
+ adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
+ _("Co_ntrast:"), SCALE_WIDTH, 5,
+ config.cp.contrast,
+ 0, 5, 0.1, 1, 2,
+ TRUE, 0, 0,
+ NULL, NULL);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (gimp_double_adjustment_update),
+ &config.cp.contrast);
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (set_flame_preview),
+ NULL);
+
+ adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 2,
+ _("_Gamma:"), SCALE_WIDTH, 5,
+ config.cp.gamma,
+ 1, 5, 0.1, 1, 2,
+ TRUE, 0, 0,
+ NULL, NULL);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (gimp_double_adjustment_update),
+ &config.cp.gamma);
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (set_flame_preview),
+ NULL);
+
+ adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 3,
+ _("Sample _density:"), SCALE_WIDTH, 5,
+ config.cp.sample_density,
+ 0.1, 20, 1, 5, 2,
+ TRUE, 0, 0,
+ NULL, NULL);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (gimp_double_adjustment_update),
+ &config.cp.sample_density);
+
+ adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 4,
+ _("Spa_tial oversample:"), SCALE_WIDTH, 5,
+ config.cp.spatial_oversample,
+ 1, 4, 0.01, 0.1, 0,
+ TRUE, 0, 0,
+ NULL, NULL);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (gimp_int_adjustment_update),
+ &config.cp.spatial_oversample);
+
+ adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 5,
+ _("Spatial _filter radius:"), SCALE_WIDTH, 5,
+ config.cp.spatial_filter_radius,
+ 0, 4, 0.2, 1, 2,
+ TRUE, 0, 0,
+ NULL, NULL);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (gimp_double_adjustment_update),
+ &config.cp.spatial_filter_radius);
+
+ {
+ GtkWidget *hbox;
+ GtkWidget *label;
+ GtkWidget *combo;
+
+ hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
+ gtk_box_pack_start (GTK_BOX (box), hbox, FALSE, FALSE, 0);
+ gtk_widget_show (hbox);
+
+ label = gtk_label_new_with_mnemonic (_("Color_map:"));
+ gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
+ gtk_widget_show (label);
+
+ combo = gimp_drawable_combo_box_new (cmap_constrain, NULL);
+
+ gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
+
+#if 0
+ gimp_int_combo_box_prepend (GIMP_INT_COMBO_BOX (combo),
+ GIMP_INT_STORE_VALUE, BLACK_DRAWABLE,
+ GIMP_INT_STORE_LABEL, _("Black"),
+ -1);
+#endif
+
+ {
+ static const gchar *names[] =
+ {
+ "sunny harvest",
+ "rose",
+ "calcoast09",
+ "klee insula-dulcamara",
+ "ernst anti-pope",
+ "gris josette"
+ };
+ static const gint good[] = { 10, 20, 68, 79, 70, 75 };
+
+ gint i;
+
+ for (i = 0; i < G_N_ELEMENTS (good); i++)
+ {
+ gint value = TABLE_DRAWABLE - good[i];
+
+ gimp_int_combo_box_prepend (GIMP_INT_COMBO_BOX (combo),
+ GIMP_INT_STORE_VALUE, value,
+ GIMP_INT_STORE_LABEL, names[i],
+ -1);
+ }
+ }
+
+ gimp_int_combo_box_prepend (GIMP_INT_COMBO_BOX (combo),
+ GIMP_INT_STORE_VALUE, GRADIENT_DRAWABLE,
+ GIMP_INT_STORE_LABEL, _("Custom gradient"),
+ GIMP_INT_STORE_ICON_NAME, GIMP_ICON_GRADIENT,
+ -1);
+
+ gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo),
+ config.cmap_drawable,
+ G_CALLBACK (cmap_callback),
+ NULL);
+
+ gtk_box_pack_start (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
+ gtk_widget_show (combo);
+
+ cmap_preview = gimp_preview_area_new ();
+ gtk_widget_set_size_request (cmap_preview, 32, 32);
+
+ gtk_box_pack_end (GTK_BOX (hbox), cmap_preview, FALSE, FALSE, 0);
+ gtk_widget_show (cmap_preview);
+
+ set_cmap_preview ();
+ }
+
+ table = gtk_table_new (3, 3, FALSE);
+ gtk_table_set_row_spacings (GTK_TABLE (table), 6);
+ gtk_table_set_col_spacings (GTK_TABLE (table), 6);
+ gtk_container_set_border_width (GTK_CONTAINER (table), 12);
+
+ label = gtk_label_new_with_mnemonic(_("C_amera"));
+ gtk_notebook_append_page (GTK_NOTEBOOK (notebook), table, label);
+ gtk_widget_show (table);
+
+ adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
+ _("_Zoom:"), SCALE_WIDTH, 0,
+ config.cp.zoom,
+ -4, 4, 0.5, 1, 2,
+ TRUE, 0, 0,
+ NULL, NULL);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (gimp_double_adjustment_update),
+ &config.cp.zoom);
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (set_flame_preview),
+ NULL);
+
+ adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
+ _("_X:"), SCALE_WIDTH, 0,
+ config.cp.center[0],
+ -2, 2, 0.5, 1, 2,
+ TRUE, 0, 0,
+ NULL, NULL);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (gimp_double_adjustment_update),
+ &config.cp.center[0]);
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (set_flame_preview),
+ NULL);
+
+ adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 2,
+ _("_Y:"), SCALE_WIDTH, 0,
+ config.cp.center[1],
+ -2, 2, 0.5, 1, 2,
+ TRUE, 0, 0,
+ NULL, NULL);
+
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (gimp_double_adjustment_update),
+ &config.cp.center[1]);
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (set_flame_preview),
+ NULL);
+
+ set_flame_preview ();
+
+ gtk_widget_show (dialog);
+
+ run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
+
+ gtk_widget_destroy (dialog);
+
+ return run;
+}