Adding upstream version 2.10.36.upstream/2.10.36

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

1 files changed, 748 insertions, 0 deletions

diff --git a/plug-ins/common/align-layers.c b/plug-ins/common/align-layers.c
new file mode 100644
index 0000000..9cddc3b
--- /dev/null
+++ b/plug-ins/common/align-layers.c
@@ -0,0 +1,748 @@
+/* align_layers.c
+ * Author: Shuji Narazaki <narazaki@InetQ.or.jp>
+ * Version:  0.26
+ *
+ * Copyright (C) 1997-1998 Shuji Narazaki <narazaki@InetQ.or.jp>
+ *
+ * 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 <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+
+#include "libgimp/stdplugins-intl.h"
+
+#define PLUG_IN_PROC   "plug-in-align-layers"
+#define PLUG_IN_BINARY "align-layers"
+#define PLUG_IN_ROLE   "gimp-align-layers"
+#define SCALE_WIDTH    150
+
+enum
+{
+  H_NONE,
+  H_COLLECT,
+  LEFT2RIGHT,
+  RIGHT2LEFT,
+  SNAP2HGRID
+};
+
+enum
+{
+  H_BASE_LEFT,
+  H_BASE_CENTER,
+  H_BASE_RIGHT
+};
+
+enum
+{
+  V_NONE,
+  V_COLLECT,
+  TOP2BOTTOM,
+  BOTTOM2TOP,
+  SNAP2VGRID
+};
+
+enum
+{
+  V_BASE_TOP,
+  V_BASE_CENTER,
+  V_BASE_BOTTOM
+};
+
+
+typedef struct
+{
+  gint step_x;
+  gint step_y;
+  gint base_x;
+  gint base_y;
+} AlignData;
+
+
+static void     query   (void);
+static void     run     (const gchar      *name,
+                         gint              nparams,
+                         const GimpParam  *param,
+                         gint             *nreturn_vals,
+                         GimpParam       **return_vals);
+
+/* Main function */
+static GimpPDBStatusType align_layers                (gint32  image_id);
+
+/* Helpers and internal functions */
+static gint      align_layers_count_visibles_layers  (gint     *layers,
+                                                      gint      length);
+static gint      align_layers_find_last_layer        (gint     *layers,
+                                                      gint      layers_num,
+                                                      gboolean *found);
+static gint      align_layers_spread_visibles_layers (gint     *layers,
+                                                      gint      layers_num,
+                                                      gint     *layers_array);
+static gint    * align_layers_spread_image           (gint32    image_id,
+                                                      gint     *layer_num);
+static gint      align_layers_find_background        (gint32    image_id);
+static AlignData align_layers_gather_data            (gint     *layers,
+                                                      gint      layer_num,
+                                                      gint      background);
+static void      align_layers_perform_alignment      (gint     *layers,
+                                                      gint      layer_num,
+                                                      AlignData data);
+static void      align_layers_get_align_offsets      (gint32    drawable_id,
+                                                      gint     *x,
+                                                      gint     *y);
+static gint      align_layers_dialog                 (void);
+
+
+
+const GimpPlugInInfo PLUG_IN_INFO =
+{
+  NULL,  /* init_proc  */
+  NULL,  /* quit_proc  */
+  query, /* query_proc */
+  run,   /* run_proc   */
+};
+
+
+/* dialog variables */
+typedef struct
+{
+  gint     h_style;
+  gint     h_base;
+  gint     v_style;
+  gint     v_base;
+  gboolean ignore_bottom;
+  gboolean base_is_bottom_layer;
+  gint     grid_size;
+} ValueType;
+
+static ValueType VALS =
+{
+  H_NONE,
+  H_BASE_LEFT,
+  V_NONE,
+  V_BASE_TOP,
+  TRUE,
+  FALSE,
+  10
+};
+
+
+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"},
+    { GIMP_PDB_DRAWABLE, "drawable",             "Input drawable (not used)"},
+    { GIMP_PDB_INT32,    "link-after-alignment", "Link the visible layers after alignment { TRUE, FALSE }"},
+    { GIMP_PDB_INT32,    "use-bottom",           "use the bottom layer as the base of alignment { TRUE, FALSE }"}
+  };
+
+  gimp_install_procedure (PLUG_IN_PROC,
+                          N_("Align all visible layers of the image"),
+                          "Align visible layers",
+                          "Shuji Narazaki <narazaki@InetQ.or.jp>",
+                          "Shuji Narazaki",
+                          "1997",
+                          N_("Align Visi_ble Layers..."),
+                          "RGB*,GRAY*,INDEXED*",
+                          GIMP_PLUGIN,
+                          G_N_ELEMENTS (args), 0,
+                          args, NULL);
+
+  gimp_plugin_menu_register (PLUG_IN_PROC, "<Image>/Image/Arrange");
+}
+
+static void
+run (const gchar      *name,
+     gint              nparams,
+     const GimpParam  *param,
+     gint             *nreturn_vals,
+     GimpParam       **return_vals)
+{
+  static GimpParam  values[2];
+  GimpPDBStatusType status = GIMP_PDB_EXECUTION_ERROR;
+  GimpRunMode       run_mode;
+  gint              image_id, layer_num;
+  gint             *layers;
+
+  run_mode = param[0].data.d_int32;
+  image_id = param[1].data.d_int32;
+
+  INIT_I18N ();
+
+  *nreturn_vals = 1;
+  *return_vals  = values;
+
+  values[0].type          = GIMP_PDB_STATUS;
+  values[0].data.d_status = status;
+
+  switch ( run_mode )
+    {
+    case GIMP_RUN_INTERACTIVE:
+      layers = gimp_image_get_layers (image_id, &layer_num);
+      layer_num = align_layers_count_visibles_layers (layers,
+                                                      layer_num);
+      g_free (layers);
+      if (layer_num < 2)
+        {
+          *nreturn_vals = 2;
+          values[1].type          = GIMP_PDB_STRING;
+          values[1].data.d_string = _("There are not enough layers to align.");
+          return;
+        }
+      gimp_get_data (PLUG_IN_PROC, &VALS);
+      VALS.grid_size = MAX (VALS.grid_size, 1);
+      if (! align_layers_dialog ())
+        return;
+      break;
+
+    case GIMP_RUN_NONINTERACTIVE:
+      break;
+
+    case GIMP_RUN_WITH_LAST_VALS:
+      gimp_get_data (PLUG_IN_PROC, &VALS);
+      break;
+    }
+
+  status = align_layers (image_id);
+
+  if (run_mode != GIMP_RUN_NONINTERACTIVE)
+    gimp_displays_flush ();
+
+  if (run_mode == GIMP_RUN_INTERACTIVE && status == GIMP_PDB_SUCCESS)
+    gimp_set_data (PLUG_IN_PROC, &VALS, sizeof (ValueType));
+
+  values[0].data.d_status = status;
+}
+
+/*
+ * Main function
+ */
+static GimpPDBStatusType
+align_layers (gint32 image_id)
+{
+  gint       layer_num  = 0;
+  gint      *layers     = NULL;
+  gint       background = 0;
+  AlignData  data;
+
+  layers = align_layers_spread_image (image_id, &layer_num);
+  if (layer_num < 2)
+    {
+      g_free (layers);
+      return GIMP_PDB_EXECUTION_ERROR;
+    }
+
+  background = align_layers_find_background (image_id);
+
+  /* If we want to ignore the bottom layer and if it's visible */
+  if (VALS.ignore_bottom && background == layers[layer_num - 1])
+    {
+      layer_num--;
+    }
+
+  data = align_layers_gather_data (layers,
+                                   layer_num,
+                                   background);
+
+  gimp_image_undo_group_start (image_id);
+
+  align_layers_perform_alignment (layers,
+                                  layer_num,
+                                  data);
+
+  gimp_image_undo_group_end (image_id);
+
+  g_free (layers);
+
+  return GIMP_PDB_SUCCESS;
+}
+
+/*
+ * Find the bottommost layer, visible or not
+ * The image must contain at least one layer.
+ */
+static gint
+align_layers_find_last_layer (gint     *layers,
+                              gint      layers_num,
+                              gboolean *found)
+{
+  gint i;
+
+  for (i = layers_num - 1; i >= 0; i--)
+    {
+      gint item = layers[i];
+
+      if (gimp_item_is_group (item))
+        {
+          gint *children;
+          gint  children_num;
+          gint  last_layer;
+
+          children = gimp_item_get_children (item, &children_num);
+          last_layer = align_layers_find_last_layer (children,
+                                                     children_num,
+                                                     found);
+          g_free (children);
+          if (*found)
+            return last_layer;
+        }
+      else if (gimp_item_is_layer (item))
+        {
+          *found = TRUE;
+          return item;
+        }
+    }
+
+  /* should never happen */
+  return -1;
+}
+
+/*
+ * Return the bottom layer.
+ */
+static gint
+align_layers_find_background (gint32 image_id)
+{
+  gint    *layers;
+  gint     layers_num;
+  gint     background;
+  gboolean found = FALSE;
+
+  layers = gimp_image_get_layers (image_id, &layers_num);
+  background = align_layers_find_last_layer (layers,
+                                             layers_num,
+                                             &found);
+  g_free (layers);
+
+  return background;
+}
+
+/*
+ * Fill layers_array with all visible layers.
+ * layers_array needs to be allocated before the call
+ */
+static gint
+align_layers_spread_visibles_layers (gint *layers,
+                                     gint  layers_num,
+                                     gint *layers_array)
+{
+  gint i;
+  gint index = 0;
+
+  for (i = 0; i < layers_num; i++)
+    {
+      gint item = layers[i];
+
+      if (gimp_item_get_visible (item))
+        {
+          if (gimp_item_is_group (item))
+            {
+              gint *children;
+              gint  children_num;
+
+              children = gimp_item_get_children (item, &children_num);
+              index += align_layers_spread_visibles_layers (children,
+                                                            children_num,
+                                                            &(layers_array[index]));
+              g_free (children);
+            }
+          else if (gimp_item_is_layer (item))
+            {
+              layers_array[index] = item;
+              index++;
+            }
+        }
+    }
+
+  return index;
+}
+
+/*
+ * Return a contiguous array of all visible layers
+ */
+static gint *
+align_layers_spread_image (gint32  image_id,
+                           gint   *layer_num)
+{
+  gint *layers;
+  gint *layers_array;
+  gint  layer_num_loc;
+
+  layers = gimp_image_get_layers (image_id, &layer_num_loc);
+  *layer_num = align_layers_count_visibles_layers (layers,
+                                                   layer_num_loc);
+
+  layers_array = g_malloc (sizeof (gint) * *layer_num);
+
+  align_layers_spread_visibles_layers (layers,
+                                       layer_num_loc,
+                                       layers_array);
+  g_free (layers);
+
+  return layers_array;
+}
+
+static gint
+align_layers_count_visibles_layers (gint *layers,
+                                    gint  length)
+{
+  gint i;
+  gint count = 0;
+
+  for (i = 0; i<length; i++)
+    {
+      gint item = layers[i];
+
+      if (gimp_item_get_visible (item))
+        {
+          if (gimp_item_is_group (item))
+            {
+              gint *children;
+              gint  children_num;
+
+              children = gimp_item_get_children (item, &children_num);
+              count += align_layers_count_visibles_layers (children,
+                                                           children_num);
+              g_free (children);
+            }
+          else if (gimp_item_is_layer (item))
+            {
+              count += 1;
+            }
+        }
+    }
+
+  return count;
+}
+
+static AlignData
+align_layers_gather_data (gint *layers,
+                          gint  layer_num,
+                          gint  background)
+{
+  AlignData data;
+  gint   min_x = G_MAXINT;
+  gint   min_y = G_MAXINT;
+  gint   max_x = G_MININT;
+  gint   max_y = G_MININT;
+  gint   index;
+  gint   orig_x   = 0;
+  gint   orig_y   = 0;
+  gint   offset_x = 0;
+  gint   offset_y = 0;
+
+  data.step_x = 0;
+  data.step_y = 0;
+  data.base_x = 0;
+  data.base_y = 0;
+
+  /* 0 is the top layer */
+  for (index = 0; index < layer_num; index++)
+    {
+      gimp_drawable_offsets (layers[index], &orig_x, &orig_y);
+
+      align_layers_get_align_offsets (layers[index],
+                                      &offset_x,
+                                      &offset_y);
+      orig_x += offset_x;
+      orig_y += offset_y;
+
+      min_x = MIN (min_x, orig_x);
+      max_x = MAX (max_x, orig_x);
+      min_y = MIN (min_y, orig_y);
+      max_y = MAX (max_y, orig_y);
+    }
+
+  if (VALS.base_is_bottom_layer)
+    {
+      gimp_drawable_offsets (background, &orig_x, &orig_y);
+
+      align_layers_get_align_offsets (background,
+                                      &offset_x,
+                                      &offset_y);
+      orig_x += offset_x;
+      orig_y += offset_y;
+      data.base_x = min_x = orig_x;
+      data.base_y = min_y = orig_y;
+    }
+
+  if (layer_num > 1)
+    {
+      data.step_x = (max_x - min_x) / (layer_num - 1);
+      data.step_y = (max_y - min_y) / (layer_num - 1);
+    }
+
+  if ( (VALS.h_style == LEFT2RIGHT) || (VALS.h_style == RIGHT2LEFT))
+    data.base_x = min_x;
+
+  if ( (VALS.v_style == TOP2BOTTOM) || (VALS.v_style == BOTTOM2TOP))
+    data.base_y = min_y;
+
+  return data;
+}
+
+/*
+ * Modifies position of each visible layers
+ * according to data.
+ */
+static void
+align_layers_perform_alignment (gint      *layers,
+                                gint       layer_num,
+                                AlignData  data)
+{
+  gint index;
+
+  for (index = 0; index < layer_num; index++)
+    {
+      gint x = 0;
+      gint y = 0;
+      gint orig_x;
+      gint orig_y;
+      gint offset_x;
+      gint offset_y;
+
+      gimp_drawable_offsets (layers[index], &orig_x, &orig_y);
+
+      align_layers_get_align_offsets (layers[index],
+                                      &offset_x,
+                                      &offset_y);
+      switch (VALS.h_style)
+        {
+        case H_NONE:
+          x = orig_x;
+          break;
+        case H_COLLECT:
+          x = data.base_x - offset_x;
+          break;
+        case LEFT2RIGHT:
+          x = (data.base_x + index * data.step_x) - offset_x;
+          break;
+        case RIGHT2LEFT:
+          x = (data.base_x + (layer_num - index - 1) * data.step_x) - offset_x;
+          break;
+        case SNAP2HGRID:
+          x = VALS.grid_size
+            * (int) ((orig_x + offset_x + VALS.grid_size /2) / VALS.grid_size)
+            - offset_x;
+          break;
+        }
+
+      switch (VALS.v_style)
+        {
+        case V_NONE:
+          y = orig_y;
+          break;
+        case V_COLLECT:
+          y = data.base_y - offset_y;
+          break;
+        case TOP2BOTTOM:
+          y = (data.base_y + index * data.step_y) - offset_y;
+          break;
+        case BOTTOM2TOP:
+          y = (data.base_y + (layer_num - index - 1) * data.step_y) - offset_y;
+          break;
+        case SNAP2VGRID:
+          y = VALS.grid_size
+            * (int) ((orig_y + offset_y + VALS.grid_size / 2) / VALS.grid_size)
+            - offset_y;
+          break;
+        }
+
+      gimp_layer_set_offsets (layers[index], x, y);
+    }
+}
+
+static void
+align_layers_get_align_offsets (gint32  drawable_id,
+                                gint   *x,
+                                gint   *y)
+{
+  gint width  = gimp_drawable_width  (drawable_id);
+  gint height = gimp_drawable_height (drawable_id);
+
+  switch (VALS.h_base)
+    {
+    case H_BASE_LEFT:
+      *x = 0;
+      break;
+    case H_BASE_CENTER:
+      *x = width / 2;
+      break;
+    case H_BASE_RIGHT:
+      *x = width;
+      break;
+    default:
+      *x = 0;
+      break;
+    }
+
+  switch (VALS.v_base)
+    {
+    case V_BASE_TOP:
+      *y = 0;
+      break;
+    case V_BASE_CENTER:
+      *y = height / 2;
+      break;
+    case V_BASE_BOTTOM:
+      *y = height;
+      break;
+    default:
+      *y = 0;
+      break;
+    }
+}
+
+static int
+align_layers_dialog (void)
+{
+  GtkWidget *dialog;
+  GtkWidget *table;
+  GtkWidget *combo;
+  GtkWidget *toggle;
+  GtkObject *adj;
+  gboolean   run;
+
+  gimp_ui_init (PLUG_IN_BINARY, FALSE);
+
+  dialog = gimp_dialog_new (_("Align Visible Layers"), 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));
+
+  table = gtk_table_new (7, 3, FALSE);
+  gtk_table_set_col_spacings (GTK_TABLE (table), 6);
+  gtk_table_set_row_spacings (GTK_TABLE (table), 6);
+  gtk_container_set_border_width (GTK_CONTAINER (table), 12);
+  gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
+                      table, FALSE, FALSE, 0);
+  gtk_widget_show (table);
+
+  combo = gimp_int_combo_box_new (C_("align-style", "None"), H_NONE,
+                                  _("Collect"),              H_COLLECT,
+                                  _("Fill (left to right)"), LEFT2RIGHT,
+                                  _("Fill (right to left)"), RIGHT2LEFT,
+                                  _("Snap to grid"),         SNAP2HGRID,
+                                  NULL);
+  gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (combo), VALS.h_style);
+
+  g_signal_connect (combo, "changed",
+                    G_CALLBACK (gimp_int_combo_box_get_active),
+                    &VALS.h_style);
+
+  gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
+                             _("_Horizontal style:"), 0.0, 0.5,
+                             combo, 2, FALSE);
+
+
+  combo = gimp_int_combo_box_new (_("Left edge"),  H_BASE_LEFT,
+                                  _("Center"),     H_BASE_CENTER,
+                                  _("Right edge"), H_BASE_RIGHT,
+                                  NULL);
+  gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (combo), VALS.h_base);
+
+  g_signal_connect (combo, "changed",
+                    G_CALLBACK (gimp_int_combo_box_get_active),
+                    &VALS.h_base);
+
+  gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
+                             _("Ho_rizontal base:"), 0.0, 0.5,
+                             combo, 2, FALSE);
+
+  combo = gimp_int_combo_box_new (C_("align-style", "None"), V_NONE,
+                                  _("Collect"),              V_COLLECT,
+                                  _("Fill (top to bottom)"), TOP2BOTTOM,
+                                  _("Fill (bottom to top)"), BOTTOM2TOP,
+                                  _("Snap to grid"),         SNAP2VGRID,
+                                  NULL);
+  gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (combo), VALS.v_style);
+
+  g_signal_connect (combo, "changed",
+                    G_CALLBACK (gimp_int_combo_box_get_active),
+                    &VALS.v_style);
+
+  gimp_table_attach_aligned (GTK_TABLE (table), 0, 2,
+                             _("_Vertical style:"), 0.0, 0.5,
+                             combo, 2, FALSE);
+
+  combo = gimp_int_combo_box_new (_("Top edge"),    V_BASE_TOP,
+                                  _("Center"),      V_BASE_CENTER,
+                                  _("Bottom edge"), V_BASE_BOTTOM,
+                                  NULL);
+  gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (combo), VALS.v_base);
+
+  g_signal_connect (combo, "changed",
+                    G_CALLBACK (gimp_int_combo_box_get_active),
+                    &VALS.v_base);
+
+  gimp_table_attach_aligned (GTK_TABLE (table), 0, 3,
+                             _("Ver_tical base:"), 0.0, 0.5,
+                             combo, 2, FALSE);
+
+  adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 4,
+                              _("_Grid size:"), SCALE_WIDTH, 0,
+                              VALS.grid_size, 1, 200, 1, 10, 0,
+                              TRUE, 0, 0,
+                              NULL, NULL);
+  g_signal_connect (adj, "value-changed",
+                    G_CALLBACK (gimp_int_adjustment_update),
+                    &VALS.grid_size);
+
+  toggle = gtk_check_button_new_with_mnemonic
+    (_("_Ignore the bottom layer even if visible"));
+  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), VALS.ignore_bottom);
+  gtk_table_attach_defaults (GTK_TABLE (table), toggle, 0, 3, 5, 6);
+  gtk_widget_show (toggle);
+
+  g_signal_connect (toggle, "toggled",
+                    G_CALLBACK (gimp_toggle_button_update),
+                    &VALS.ignore_bottom);
+
+  toggle = gtk_check_button_new_with_mnemonic
+    (_("_Use the (invisible) bottom layer as the base"));
+  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
+                                VALS.base_is_bottom_layer);
+  gtk_table_attach_defaults (GTK_TABLE (table), toggle, 0, 3, 6, 7);
+  gtk_widget_show (toggle);
+
+  g_signal_connect (toggle, "toggled",
+                    G_CALLBACK (gimp_toggle_button_update),
+                    &VALS.base_is_bottom_layer);
+
+  gtk_widget_show (dialog);
+
+  run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
+
+  gtk_widget_destroy (dialog);
+
+  return run;
+}