Adding upstream version 2.10.22.upstream/2.10.22upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1130 insertions, 0 deletions

diff --git a/plug-ins/common/tile-small.c b/plug-ins/common/tile-small.c
new file mode 100644
index 0000000..534faab
--- /dev/null
+++ b/plug-ins/common/tile-small.c
@@ -0,0 +1,1130 @@
+/*
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * This is a plug-in for GIMP.
+ *
+ * Tileit - This plugin take an image and makes repeated copies of it.
+ *
+ * Copyright (C) 1997 Andy Thomas  alt@picnic.demon.co.uk
+ *
+ * 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/>.
+ *
+ * A fair proprotion of this code was taken from the Whirl plug-in
+ * which was copyrighted by Federico Mena Quintero (as below).
+ *
+ * Whirl plug-in --- distort an image into a whirlpool
+ * Copyright (C) 1997 Federico Mena Quintero
+ *
+ */
+
+/* Change log:-
+ * 0.2  Added new functions to allow "editing" of the tile patten.
+ *
+ * 0.1 First version released.
+ */
+
+#include "config.h"
+
+#include <string.h>
+
+#include <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+
+#include "libgimp/stdplugins-intl.h"
+
+#define PLUG_IN_PROC   "plug-in-small-tiles"
+#define PLUG_IN_BINARY "tile-small"
+#define PLUG_IN_ROLE   "gimp-tile-small"
+
+/***** Magic numbers *****/
+
+#define PREVIEW_SIZE 128
+#define SCALE_WIDTH   80
+
+#define MAX_SEGS       6
+
+#define PREVIEW_MASK   GDK_EXPOSURE_MASK | \
+                       GDK_BUTTON_PRESS_MASK | \
+                       GDK_BUTTON_MOTION_MASK
+
+/* Variables set in dialog box */
+typedef struct data
+{
+  gint numtiles;
+} TileItVals;
+
+typedef struct
+{
+  GtkWidget *preview;
+  guchar     preview_row[PREVIEW_SIZE * 4];
+  gint       img_bpp;
+  guchar    *pv_cache;
+} TileItInterface;
+
+static TileItInterface tint =
+{
+  NULL,  /* Preview */
+  {
+    '4',
+    'u'
+  },     /* Preview_row */
+  4,     /* bpp of drawable */
+  NULL
+};
+
+
+static void      query  (void);
+static void      run    (const gchar      *name,
+                         gint              nparams,
+                         const GimpParam  *param,
+                         gint             *nreturn_vals,
+                         GimpParam       **return_vals);
+
+static gboolean  tileit_dialog          (gint32         drawable_ID);
+
+static void      tileit_scale_update    (GtkAdjustment *adjustment,
+                                         gpointer       data);
+
+static void      tileit_exp_update      (GtkWidget     *widget,
+                                         gpointer       value);
+static void      tileit_exp_update_f    (GtkWidget     *widget,
+                                         gpointer       value);
+
+static void      tileit_reset           (GtkWidget     *widget,
+                                         gpointer       value);
+static void      tileit_radio_update    (GtkWidget     *widget,
+                                         gpointer       data);
+static void      tileit_hvtoggle_update (GtkWidget     *widget,
+                                         gpointer       data);
+
+static void      do_tiles               (gint32         drawable_ID);
+static gint      tiles_xy               (gint           width,
+                                         gint           height,
+                                         gint           x,
+                                         gint           y,
+                                         gint          *nx,
+                                         gint          *ny);
+static void      all_update             (void);
+static void      alt_update             (void);
+static void      explicit_update        (gboolean);
+
+static void      dialog_update_preview  (void);
+static void      cache_preview          (gint32         drawable_ID);
+static gboolean  tileit_preview_expose  (GtkWidget     *widget,
+                                         GdkEvent      *event);
+static gboolean  tileit_preview_events  (GtkWidget     *widget,
+                                         GdkEvent      *event);
+
+
+const GimpPlugInInfo PLUG_IN_INFO =
+{
+  NULL,  /* init_proc  */
+  NULL,  /* quit_proc  */
+  query, /* query_proc */
+  run,   /* run_proc   */
+};
+
+/* Values when first invoked */
+static TileItVals itvals =
+{
+  2
+};
+
+/* Structures for call backs... */
+/* The "explicit tile" & family */
+typedef enum
+{
+  ALL,
+  ALT,
+  EXPLICIT
+} AppliedTo;
+
+typedef struct
+{
+  AppliedTo  type;
+
+  gint       x;        /* X - pos of tile   */
+  gint       y;        /* Y - pos of tile   */
+  GtkObject *r_adj;    /* row adjustment    */
+  GtkObject *c_adj;    /* column adjustment */
+  GtkWidget *applybut; /* The apply button  */
+} Exp_Call;
+
+static Exp_Call exp_call =
+{
+  ALL,
+  -1,
+  -1,
+  NULL,
+  NULL,
+  NULL,
+};
+
+/* The reset button needs to know some toggle widgets.. */
+
+typedef struct
+{
+  GtkWidget *htoggle;
+  GtkWidget *vtoggle;
+} Reset_Call;
+
+static Reset_Call res_call =
+{
+  NULL,
+  NULL,
+};
+
+/* 2D - Array that holds the actions for each tile */
+/* Action type on cell */
+#define HORIZONTAL 0x1
+#define VERTICAL   0x2
+
+static gint tileactions[MAX_SEGS][MAX_SEGS];
+
+/* What actions buttons toggled */
+static gint   do_horz = FALSE;
+static gint   do_vert = FALSE;
+static gint   opacity = 100;
+
+/* Stuff for the preview bit */
+static gint     sel_x1, sel_y1, sel_x2, sel_y2;
+static gint     sel_width, sel_height;
+static gint     preview_width, preview_height;
+static gboolean has_alpha;
+
+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_PDB_INT32,    "num-tiles", "Number of tiles to make"      }
+  };
+
+  gimp_install_procedure (PLUG_IN_PROC,
+                          N_("Tile image into smaller versions of the original"),
+                          "More here later",
+                          "Andy Thomas",
+                          "Andy Thomas",
+                          "1997",
+                          N_("_Small Tiles..."),
+                          "RGB*, GRAY*",
+                          GIMP_PLUGIN,
+                          G_N_ELEMENTS (args), 0,
+                          args, NULL);
+}
+
+static void
+run (const gchar      *name,
+     gint              nparams,
+     const GimpParam  *param,
+     gint             *nreturn_vals,
+     GimpParam       **return_vals)
+{
+  static GimpParam   values[1];
+  GimpRunMode        run_mode;
+  gint32             drawable_ID;
+  GimpPDBStatusType  status = GIMP_PDB_SUCCESS;
+  gint               pwidth;
+  gint               pheight;
+
+  INIT_I18N ();
+  gegl_init (NULL, NULL);
+
+  *nreturn_vals = 1;
+  *return_vals  = values;
+
+  values[0].type          = GIMP_PDB_STATUS;
+  values[0].data.d_status = status;
+
+  run_mode    = param[0].data.d_int32;
+  drawable_ID = param[2].data.d_drawable;
+
+  has_alpha = gimp_drawable_has_alpha (drawable_ID);
+
+  if (! gimp_drawable_mask_intersect (drawable_ID,
+                                      &sel_x1,    &sel_y1,
+                                      &sel_width, &sel_height))
+    {
+      g_message (_("Region selected for filter is empty."));
+      return;
+    }
+
+  sel_x2 = sel_x1 + sel_width;
+  sel_y2 = sel_y1 + sel_height;
+
+  /* Calculate preview size */
+
+  if (sel_width > sel_height)
+    {
+      pwidth  = MIN (sel_width, PREVIEW_SIZE);
+      pheight = sel_height * pwidth / sel_width;
+    }
+  else
+    {
+      pheight = MIN (sel_height, PREVIEW_SIZE);
+      pwidth  = sel_width * pheight / sel_height;
+    }
+
+  preview_width  = MAX (pwidth, 2);  /* Min size is 2 */
+  preview_height = MAX (pheight, 2);
+
+  switch (run_mode)
+    {
+    case GIMP_RUN_INTERACTIVE:
+      gimp_get_data (PLUG_IN_PROC, &itvals);
+      if (! tileit_dialog (drawable_ID))
+        return;
+      break;
+
+    case GIMP_RUN_NONINTERACTIVE:
+      if (nparams != 4)
+        {
+          status = GIMP_PDB_CALLING_ERROR;
+        }
+      else
+        {
+          itvals.numtiles = param[3].data.d_int32;
+        }
+      break;
+
+    case GIMP_RUN_WITH_LAST_VALS:
+      gimp_get_data (PLUG_IN_PROC, &itvals);
+      break;
+
+    default:
+      break;
+    }
+
+  if (gimp_drawable_is_rgb (drawable_ID) ||
+      gimp_drawable_is_gray (drawable_ID))
+    {
+      /* Set the tile cache size */
+
+      gimp_progress_init (_("Tiling"));
+
+      do_tiles (drawable_ID);
+
+      if (run_mode != GIMP_RUN_NONINTERACTIVE)
+        gimp_displays_flush ();
+
+      if (run_mode == GIMP_RUN_INTERACTIVE)
+        gimp_set_data (PLUG_IN_PROC, &itvals, sizeof (TileItVals));
+    }
+  else
+    {
+      status = GIMP_PDB_EXECUTION_ERROR;
+    }
+
+  values[0].data.d_status = status;
+}
+
+static gboolean
+tileit_dialog (gint drawable_ID)
+{
+  GtkWidget *dlg;
+  GtkWidget *main_vbox;
+  GtkWidget *hbox;
+  GtkWidget *vbox;
+  GtkWidget *frame;
+  GtkWidget *table;
+  GtkWidget *table2;
+  GtkWidget *button;
+  GtkWidget *label;
+  GtkWidget *spinbutton;
+  GtkObject *adj;
+  GtkObject *scale;
+  GtkWidget *toggle;
+  GSList    *orientation_group = NULL;
+  gboolean   run;
+
+  gimp_ui_init (PLUG_IN_BINARY, TRUE);
+
+  cache_preview (drawable_ID); /* Get the preview image */
+
+  dlg = gimp_dialog_new (_("Small Tiles"), 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 (dlg),
+                                           GTK_RESPONSE_OK,
+                                           GTK_RESPONSE_CANCEL,
+                                           -1);
+
+  gimp_window_set_transient (GTK_WINDOW (dlg));
+
+  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 (dlg))),
+                      main_vbox, TRUE, TRUE, 0);
+  gtk_widget_show (main_vbox);
+
+  hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
+  gtk_box_pack_start (GTK_BOX (main_vbox), hbox, FALSE, FALSE, 0);
+  gtk_widget_show (hbox);
+
+  vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
+  gtk_box_pack_start (GTK_BOX (hbox), vbox, FALSE, FALSE, 0);
+  gtk_widget_show (vbox);
+
+  frame = gtk_frame_new (NULL);
+  gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
+  gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
+  gtk_widget_show (frame);
+
+  tint.preview = gimp_preview_area_new ();
+  gtk_widget_set_size_request (tint.preview, preview_width, preview_height);
+  gtk_widget_set_events (GTK_WIDGET (tint.preview), PREVIEW_MASK);
+  gtk_container_add (GTK_CONTAINER (frame), tint.preview);
+  gtk_widget_show (tint.preview);
+
+  g_signal_connect_after (tint.preview, "expose-event",
+                          G_CALLBACK (tileit_preview_expose),
+                          NULL);
+  g_signal_connect (tint.preview, "event",
+                    G_CALLBACK (tileit_preview_events),
+                    NULL);
+
+  /* Area for buttons etc */
+
+  frame = gimp_frame_new (_("Flip"));
+  gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
+  gtk_widget_show (frame);
+
+  vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
+  gtk_container_add (GTK_CONTAINER (frame), vbox);
+  gtk_widget_show (vbox);
+
+  hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
+  gtk_box_set_homogeneous (GTK_BOX (hbox), TRUE);
+  gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
+  gtk_widget_show (hbox);
+
+  toggle = gtk_check_button_new_with_mnemonic (_("_Horizontal"));
+  gtk_box_pack_start (GTK_BOX (hbox), toggle, TRUE, TRUE, 0);
+  gtk_widget_show (toggle);
+
+  g_signal_connect (toggle, "toggled",
+                    G_CALLBACK (tileit_hvtoggle_update),
+                    &do_horz);
+
+  res_call.htoggle = toggle;
+
+  toggle = gtk_check_button_new_with_mnemonic (_("_Vertical"));
+  gtk_box_pack_start (GTK_BOX (hbox), toggle, TRUE, TRUE, 0);
+  gtk_widget_show (toggle);
+
+  g_signal_connect (toggle, "toggled",
+                    G_CALLBACK (tileit_hvtoggle_update),
+                    &do_vert);
+
+  res_call.vtoggle = toggle;
+
+  button = gtk_button_new_with_mnemonic (_("_Reset"));
+  gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0);
+  gtk_widget_show (button);
+
+  g_signal_connect (button, "clicked",
+                    G_CALLBACK (tileit_reset),
+                    &res_call);
+
+  /* Table for the inner widgets..*/
+  table = gtk_table_new (4, 4, FALSE);
+  gtk_table_set_col_spacings (GTK_TABLE (table), 6);
+  gtk_table_set_row_spacings (GTK_TABLE (table), 6);
+  gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
+  gtk_widget_show (table);
+
+  toggle = gtk_radio_button_new_with_mnemonic (orientation_group,
+                                               _("A_ll tiles"));
+  orientation_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (toggle));
+  gtk_table_attach (GTK_TABLE (table), toggle, 0, 4, 0, 1,
+                    GTK_FILL | GTK_EXPAND, GTK_FILL, 0, 0);
+  gtk_widget_show (toggle);
+
+  g_object_set_data (G_OBJECT (toggle), "gimp-item-data",
+                     GINT_TO_POINTER (ALL));
+
+  g_signal_connect (toggle, "toggled",
+                    G_CALLBACK (tileit_radio_update),
+                    &exp_call.type);
+
+  toggle = gtk_radio_button_new_with_mnemonic (orientation_group,
+                                               _("Al_ternate tiles"));
+  orientation_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (toggle));
+  gtk_table_attach (GTK_TABLE (table), toggle, 0, 4, 1, 2,
+                    GTK_FILL | GTK_EXPAND, GTK_FILL, 0, 0);
+  gtk_widget_show (toggle);
+
+  g_object_set_data (G_OBJECT (toggle), "gimp-item-data",
+                     GINT_TO_POINTER (ALT));
+
+  g_signal_connect (toggle, "toggled",
+                    G_CALLBACK (tileit_radio_update),
+                    &exp_call.type);
+
+  toggle = gtk_radio_button_new_with_mnemonic (orientation_group,
+                                               _("_Explicit tile"));
+  orientation_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (toggle));
+  gtk_table_attach (GTK_TABLE (table), toggle, 0, 1, 2, 4,
+                    GTK_FILL | GTK_SHRINK, GTK_FILL, 0, 0);
+  gtk_widget_show (toggle);
+
+  label = gtk_label_new_with_mnemonic (_("Ro_w:"));
+  gtk_label_set_xalign (GTK_LABEL (label), 1.0);
+  gtk_table_attach (GTK_TABLE (table), label, 1, 2, 2, 3,
+                    GTK_FILL | GTK_SHRINK , GTK_FILL, 0, 0);
+  gtk_widget_show (label);
+
+  g_object_bind_property (toggle, "active",
+                          label,  "sensitive",
+                          G_BINDING_SYNC_CREATE);
+
+  spinbutton = gimp_spin_button_new (&adj, 2, 1, 6, 1, 1, 0, 1, 0);
+  gtk_label_set_mnemonic_widget (GTK_LABEL (label), spinbutton);
+  gtk_table_attach (GTK_TABLE (table), spinbutton, 2, 3, 2, 3,
+                    GTK_FILL | GTK_SHRINK, GTK_FILL, 0, 0);
+  gtk_widget_show (spinbutton);
+
+  g_signal_connect (adj, "value-changed",
+                    G_CALLBACK (tileit_exp_update_f),
+                    &exp_call);
+
+  exp_call.r_adj = adj;
+
+  g_object_bind_property (toggle,     "active",
+                          spinbutton, "sensitive",
+                          G_BINDING_SYNC_CREATE);
+
+  label = gtk_label_new_with_mnemonic (_("Col_umn:"));
+  gtk_label_set_xalign (GTK_LABEL (label), 1.0);
+  gtk_widget_show (label);
+  gtk_table_attach (GTK_TABLE (table), label, 1, 2, 3, 4,
+                    GTK_FILL , GTK_FILL, 0, 0);
+
+  g_object_bind_property (toggle, "active",
+                          label,  "sensitive",
+                          G_BINDING_SYNC_CREATE);
+
+  spinbutton = gimp_spin_button_new (&adj, 2, 1, 6, 1, 1, 0, 1, 0);
+  gtk_label_set_mnemonic_widget (GTK_LABEL (label), spinbutton);
+  gtk_table_attach (GTK_TABLE (table), spinbutton, 2, 3, 3, 4,
+                    GTK_FILL | GTK_EXPAND, GTK_FILL, 0, 0);
+  gtk_widget_show (spinbutton);
+
+  g_signal_connect (adj, "value-changed",
+                    G_CALLBACK (tileit_exp_update_f),
+                    &exp_call);
+
+  exp_call.c_adj = adj;
+
+  g_object_bind_property (toggle,     "active",
+                          spinbutton, "sensitive",
+                          G_BINDING_SYNC_CREATE);
+
+  g_object_set_data (G_OBJECT (toggle), "gimp-item-data",
+                     GINT_TO_POINTER (EXPLICIT));
+
+  g_signal_connect (toggle, "toggled",
+                    G_CALLBACK (tileit_radio_update),
+                    &exp_call.type);
+
+  button = gtk_button_new_with_mnemonic (_("_Apply"));
+  gtk_table_attach (GTK_TABLE (table), button, 3, 4, 2, 4, 0, 0, 0, 0);
+  gtk_widget_show (button);
+
+  g_signal_connect (button, "clicked",
+                    G_CALLBACK (tileit_exp_update),
+                    &exp_call);
+
+  exp_call.applybut = button;
+
+  g_object_bind_property (toggle,     "active",
+                          spinbutton, "sensitive",
+                          G_BINDING_SYNC_CREATE);
+
+  /* Widget for selecting the Opacity */
+
+  table2 = gtk_table_new (1, 3, FALSE);
+  gtk_table_set_col_spacings (GTK_TABLE (table2), 6);
+  gtk_box_pack_start (GTK_BOX (vbox), table2, FALSE, FALSE, 0);
+  gtk_widget_show (table2);
+
+  scale = gimp_scale_entry_new (GTK_TABLE (table2), 0, 0,
+                                _("O_pacity:"), SCALE_WIDTH, -1,
+                                opacity, 0, 100, 1, 10, 0,
+                                TRUE, 0, 0,
+                                NULL, NULL);
+  g_signal_connect (scale, "value-changed",
+                    G_CALLBACK (tileit_scale_update),
+                    &opacity);
+
+  /* Lower frame saying howmany segments */
+  frame = gimp_frame_new (_("Number of Segments"));
+  gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
+  gtk_widget_show (frame);
+
+  table = gtk_table_new (1, 3, FALSE);
+  gtk_table_set_col_spacings (GTK_TABLE (table), 6);
+  gtk_container_add (GTK_CONTAINER (frame), table);
+  gtk_widget_show (table);
+
+  gtk_widget_set_sensitive (table2, gimp_drawable_has_alpha (drawable_ID));
+
+  scale = gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
+                                "_n²", SCALE_WIDTH, -1,
+                                itvals.numtiles, 2, MAX_SEGS, 1, 1, 0,
+                                TRUE, 0, 0,
+                                NULL, NULL);
+  g_signal_connect (scale, "value-changed",
+                    G_CALLBACK (tileit_scale_update),
+                    &itvals.numtiles);
+
+  gtk_widget_show (dlg);
+  dialog_update_preview ();
+
+  run = (gimp_dialog_run (GIMP_DIALOG (dlg)) == GTK_RESPONSE_OK);
+
+  gtk_widget_destroy (dlg);
+
+  return run;
+}
+
+static void
+tileit_hvtoggle_update (GtkWidget *widget,
+                        gpointer   data)
+{
+  gimp_toggle_button_update (widget, data);
+
+  switch (exp_call.type)
+    {
+    case ALL:
+      /* Clear current settings */
+      memset (tileactions, 0, sizeof (tileactions));
+      all_update ();
+      break;
+
+    case ALT:
+      /* Clear current settings */
+      memset (tileactions, 0, sizeof (tileactions));
+      alt_update ();
+      break;
+
+    case EXPLICIT:
+      break;
+    }
+
+  dialog_update_preview ();
+}
+
+static gboolean
+tileit_preview_expose (GtkWidget *widget,
+                       GdkEvent  *event)
+{
+  if (exp_call.type == EXPLICIT)
+    {
+      cairo_t  *cr     = gdk_cairo_create (gtk_widget_get_window (tint.preview));
+      gdouble   width  = (gdouble) preview_width / (gdouble) itvals.numtiles;
+      gdouble   height = (gdouble) preview_height / (gdouble) itvals.numtiles;
+      gdouble   x , y;
+
+      x = width  * (exp_call.x - 1);
+      y = height * (exp_call.y - 1);
+
+      cairo_rectangle (cr, x + 1.5, y + 1.5, width - 2, height - 2);
+
+      cairo_set_line_width (cr, 3.0);
+      cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 0.6);
+      cairo_stroke_preserve (cr);
+
+      cairo_set_line_width (cr, 1.0);
+      cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.8);
+      cairo_stroke_preserve (cr);
+
+      cairo_destroy (cr);
+    }
+
+  return FALSE;
+}
+
+static void
+exp_need_update (gint nx,
+                 gint ny)
+{
+  if (nx <= 0 || nx > itvals.numtiles || ny <= 0 || ny > itvals.numtiles)
+    return;
+
+  if (nx != exp_call.x || ny != exp_call.y)
+    {
+      exp_call.x = nx;
+      exp_call.y = ny;
+      gtk_widget_queue_draw (tint.preview);
+
+      g_signal_handlers_block_by_func (exp_call.c_adj,
+                                       tileit_exp_update_f,
+                                       &exp_call);
+      g_signal_handlers_block_by_func (exp_call.r_adj,
+                                       tileit_exp_update_f,
+                                       &exp_call);
+
+      gtk_adjustment_set_value (GTK_ADJUSTMENT (exp_call.c_adj), nx);
+      gtk_adjustment_set_value (GTK_ADJUSTMENT (exp_call.r_adj), ny);
+
+      g_signal_handlers_unblock_by_func (exp_call.c_adj,
+                                         tileit_exp_update_f,
+                                         &exp_call);
+      g_signal_handlers_unblock_by_func (exp_call.r_adj,
+                                         tileit_exp_update_f,
+                                         &exp_call);
+    }
+}
+
+static gboolean
+tileit_preview_events (GtkWidget *widget,
+                       GdkEvent  *event)
+{
+  GdkEventButton *bevent;
+  GdkEventMotion *mevent;
+  gint nx, ny;
+  gint twidth  = preview_width / itvals.numtiles;
+  gint theight = preview_height / itvals.numtiles;
+
+  switch (event->type)
+    {
+    case GDK_EXPOSE:
+      break;
+
+    case GDK_BUTTON_PRESS:
+      bevent = (GdkEventButton *) event;
+      nx = bevent->x/twidth + 1;
+      ny = bevent->y/theight + 1;
+      exp_need_update (nx, ny);
+      break;
+
+    case GDK_MOTION_NOTIFY:
+      mevent = (GdkEventMotion *) event;
+      if ( !mevent->state )
+        break;
+      if (mevent->x < 0 || mevent->y < 0)
+        break;
+      nx = mevent->x/twidth + 1;
+      ny = mevent->y/theight + 1;
+      exp_need_update (nx, ny);
+      break;
+
+    default:
+      break;
+    }
+
+  return FALSE;
+}
+
+static void
+explicit_update (gboolean settile)
+{
+  gint x,y;
+
+  /* Make sure bounds are OK */
+  y = ROUND (gtk_adjustment_get_value (GTK_ADJUSTMENT (exp_call.r_adj)));
+  if (y > itvals.numtiles || y <= 0)
+    {
+      y = itvals.numtiles;
+    }
+  x = ROUND (gtk_adjustment_get_value (GTK_ADJUSTMENT (exp_call.c_adj)));
+  if (x > itvals.numtiles || x <= 0)
+    {
+      x = itvals.numtiles;
+    }
+
+  /* Set it */
+  if (settile)
+    tileactions[x-1][y-1] = (((do_horz) ? HORIZONTAL : 0) |
+                             ((do_vert) ? VERTICAL : 0));
+
+  exp_call.x = x;
+  exp_call.y = y;
+}
+
+static void
+all_update (void)
+{
+  gint x,y;
+
+  for (x = 0 ; x < MAX_SEGS; x++)
+    for (y = 0 ; y < MAX_SEGS; y++)
+      tileactions[x][y] |= (((do_horz) ? HORIZONTAL : 0) |
+                            ((do_vert) ? VERTICAL : 0));
+}
+
+static void
+alt_update (void)
+{
+  gint x,y;
+
+  for (x = 0 ; x < MAX_SEGS; x++)
+    for (y = 0 ; y < MAX_SEGS; y++)
+      if (!((x + y) % 2))
+        tileactions[x][y] |= (((do_horz) ? HORIZONTAL : 0) |
+                              ((do_vert) ? VERTICAL : 0));
+}
+
+static void
+tileit_radio_update (GtkWidget *widget,
+                     gpointer   data)
+{
+  gimp_radio_button_update (widget, data);
+
+  if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
+    {
+      switch (exp_call.type)
+        {
+        case ALL:
+          /* Clear current settings */
+          memset (tileactions, 0, sizeof (tileactions));
+          all_update ();
+          break;
+
+        case ALT:
+          /* Clear current settings */
+          memset (tileactions, 0, sizeof (tileactions));
+          alt_update ();
+          break;
+
+        case EXPLICIT:
+          explicit_update (FALSE);
+          break;
+        }
+
+      dialog_update_preview ();
+    }
+}
+
+
+static void
+tileit_scale_update (GtkAdjustment *adjustment,
+                     gpointer       data)
+{
+  gimp_int_adjustment_update (adjustment, data);
+
+  dialog_update_preview ();
+}
+
+static void
+tileit_reset (GtkWidget *widget,
+              gpointer   data)
+{
+  Reset_Call *r = (Reset_Call *) data;
+
+  memset (tileactions, 0, sizeof (tileactions));
+
+  g_signal_handlers_block_by_func (r->htoggle,
+                                   tileit_hvtoggle_update,
+                                   &do_horz);
+  g_signal_handlers_block_by_func (r->vtoggle,
+                                   tileit_hvtoggle_update,
+                                   &do_vert);
+
+  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (r->htoggle), FALSE);
+  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (r->vtoggle), FALSE);
+
+  g_signal_handlers_unblock_by_func (r->htoggle,
+                                     tileit_hvtoggle_update,
+                                     &do_horz);
+  g_signal_handlers_unblock_by_func (r->vtoggle,
+                                     tileit_hvtoggle_update,
+                                     &do_vert);
+
+  do_horz = do_vert = FALSE;
+
+  dialog_update_preview ();
+}
+
+
+/* Could avoid almost dup. functions by using a field in the data
+ * passed.  Must still pass the data since used in sig blocking func.
+ */
+
+static void
+tileit_exp_update (GtkWidget *widget,
+                   gpointer   applied)
+{
+  explicit_update (TRUE);
+  dialog_update_preview ();
+}
+
+static void
+tileit_exp_update_f (GtkWidget *widget,
+                     gpointer   applied)
+{
+  explicit_update (FALSE);
+  dialog_update_preview ();
+}
+
+/* Cache the preview image - updates are a lot faster. */
+/* The preview_cache will contain the small image */
+
+static void
+cache_preview (gint32 drawable_ID)
+{
+  GeglBuffer *buffer = gimp_drawable_get_buffer (drawable_ID);
+  const Babl *format;
+  gdouble     scale;
+
+  if (gimp_drawable_has_alpha (drawable_ID))
+    format = babl_format ("R'G'B'A u8");
+  else
+    format = babl_format ("R'G'B' u8");
+
+  tint.img_bpp = babl_format_get_bytes_per_pixel (format);
+
+  tint.pv_cache = g_new (guchar, preview_width * preview_height * 4);
+
+  scale = (gdouble) preview_width / (gdouble) sel_width;
+
+  gegl_buffer_get (buffer, GEGL_RECTANGLE (scale * sel_x1, scale * sel_y1,
+                                           preview_width, preview_height),
+                   scale,
+                   format, tint.pv_cache,
+                   GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
+
+  g_object_unref (buffer);
+}
+
+static void
+do_tiles (gint32 drawable_ID)
+{
+  GeglBuffer         *src_buffer;
+  GeglBuffer         *dest_buffer;
+  GeglBufferIterator *iter;
+  const Babl         *format;
+  gboolean            has_alpha;
+  gint                progress, max_progress;
+  gint                bpp;
+  guchar              pixel[4];
+  gint                nc, nr;
+  gint                i;
+
+  src_buffer  = gimp_drawable_get_buffer (drawable_ID);
+  dest_buffer = gimp_drawable_get_shadow_buffer (drawable_ID);
+
+  has_alpha = gimp_drawable_has_alpha (drawable_ID);
+
+  if (has_alpha)
+    format = babl_format ("R'G'B'A u8");
+  else
+    format = babl_format ("R'G'B' u8");
+
+  bpp = babl_format_get_bytes_per_pixel (format);
+
+  progress     = 0;
+  max_progress = sel_width * sel_height;
+
+  iter = gegl_buffer_iterator_new (dest_buffer,
+                                   GEGL_RECTANGLE (sel_x1, sel_y1,
+                                                   sel_width, sel_height), 0,
+                                   format,
+                                   GEGL_ACCESS_WRITE, GEGL_ABYSS_NONE, 1);
+
+
+  while (gegl_buffer_iterator_next (iter))
+    {
+      GeglRectangle  dest_roi = iter->items[0].roi;
+      guchar        *dest_row = iter->items[0].data;
+      gint           row;
+
+      for (row = dest_roi.y; row < (dest_roi.y + dest_roi.height); row++)
+        {
+          guchar *dest = dest_row;
+          gint    col;
+
+          for (col = dest_roi.x; col < (dest_roi.x + dest_roi.width); col++)
+            {
+              tiles_xy (sel_width,
+                        sel_height,
+                        col - sel_x1,
+                        row - sel_y1,
+                        &nc, &nr);
+
+              gegl_buffer_sample (src_buffer, nc + sel_x1, nr + sel_y1, NULL,
+                                  pixel, format,
+                                  GEGL_SAMPLER_NEAREST, GEGL_ABYSS_NONE);
+
+              for (i = 0; i < bpp; i++)
+                dest[i] = pixel[i];
+
+              if (has_alpha)
+                dest[bpp - 1] = (pixel[bpp - 1] * opacity) / 100;
+
+              dest += bpp;
+            }
+
+          dest_row += dest_roi.width * bpp;
+        }
+
+      progress += dest_roi.width * dest_roi.height;
+      gimp_progress_update ((double) progress / max_progress);
+    }
+
+  gimp_progress_update (1.0);
+
+  g_object_unref (src_buffer);
+  g_object_unref (dest_buffer);
+
+  gimp_drawable_merge_shadow (drawable_ID, TRUE);
+  gimp_drawable_update (drawable_ID,
+                        sel_x1, sel_y1, sel_width, sel_height);
+}
+
+
+/* Get the xy pos and any action */
+static gint
+tiles_xy (gint  width,
+          gint  height,
+          gint  x,
+          gint  y,
+          gint *nx,
+          gint *ny)
+{
+  gint    px,py;
+  gint    rnum,cnum;
+  gint    actiontype;
+  gdouble rnd = 1 - (1.0 / (gdouble) itvals.numtiles) + 0.01;
+
+  rnum = y * itvals.numtiles / height;
+
+  py   = (y * itvals.numtiles) % height;
+  px   = (x * itvals.numtiles) % width;
+  cnum = x * itvals.numtiles / width;
+
+  if ((actiontype = tileactions[cnum][rnum]))
+    {
+      if (actiontype & VERTICAL)
+        {
+          gdouble pyr;
+
+          pyr =  height - y - 1 + rnd;
+          py = ((gint) (pyr * (gdouble) itvals.numtiles)) % height;
+        }
+
+      if (actiontype & HORIZONTAL)
+        {
+          gdouble pxr;
+
+          pxr = width - x - 1 + rnd;
+          px = ((gint) (pxr * (gdouble) itvals.numtiles)) % width;
+        }
+    }
+
+  *nx = px;
+  *ny = py;
+
+  return(actiontype);
+}
+
+
+/* Given a row then shrink it down a bit */
+static void
+do_tiles_preview (guchar *dest_row,
+                  guchar *src_rows,
+                  gint    width,
+                  gint    dh,
+                  gint    height,
+                  gint    bpp)
+{
+  gint    x;
+  gint    i;
+  gint    px, py;
+  gint    rnum,cnum;
+  gint    actiontype;
+  gdouble rnd = 1 - (1.0 / (gdouble) itvals.numtiles) + 0.01;
+
+  rnum = dh * itvals.numtiles / height;
+
+  for (x = 0; x < width; x ++)
+    {
+
+      py = (dh*itvals.numtiles)%height;
+
+      px = (x*itvals.numtiles)%width;
+      cnum = x*itvals.numtiles/width;
+
+      if ((actiontype = tileactions[cnum][rnum]))
+        {
+          if (actiontype & VERTICAL)
+            {
+              gdouble pyr;
+              pyr =  height - dh - 1 + rnd;
+              py = ((int)(pyr*(gdouble)itvals.numtiles))%height;
+            }
+
+          if (actiontype & HORIZONTAL)
+            {
+              gdouble pxr;
+              pxr = width - x - 1 + rnd;
+              px = ((int)(pxr*(gdouble)itvals.numtiles))%width;
+            }
+        }
+
+      for (i = 0 ; i < bpp; i++ )
+        dest_row[x*tint.img_bpp+i] =
+          src_rows[(px + (py*width))*bpp+i];
+
+      if (has_alpha)
+        dest_row[x*tint.img_bpp + (bpp - 1)] =
+          (dest_row[x*tint.img_bpp + (bpp - 1)]*opacity)/100;
+
+    }
+}
+
+static void
+dialog_update_preview (void)
+{
+  gint    y;
+  guchar *buffer;
+
+  buffer = g_new (guchar, preview_width * preview_height * tint.img_bpp);
+
+  for (y = 0; y < preview_height; y++)
+    {
+      do_tiles_preview (tint.preview_row,
+                        tint.pv_cache,
+                        preview_width,
+                        y,
+                        preview_height,
+                        tint.img_bpp);
+
+      memcpy (buffer + y* (preview_width * tint.img_bpp),
+              tint.preview_row,
+              preview_width * tint.img_bpp);
+    }
+
+  gimp_preview_area_draw (GIMP_PREVIEW_AREA (tint.preview),
+                          0, 0, preview_width, preview_height,
+                          (tint.img_bpp>3)?GIMP_RGBA_IMAGE:GIMP_RGB_IMAGE,
+                          buffer,
+                          preview_width * tint.img_bpp);
+
+  g_free (buffer);
+
+  gtk_widget_queue_draw (tint.preview);
+}