Adding upstream version 2.10.36.upstream/2.10.36

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

1 files changed, 212 insertions, 0 deletions

diff --git a/libgimp/gimppaletteselect.c b/libgimp/gimppaletteselect.c
new file mode 100644
index 0000000..c6ddaaf
--- /dev/null
+++ b/libgimp/gimppaletteselect.c
@@ -0,0 +1,212 @@
+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
+ *
+ * gimppaletteselect.c
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library.  If not, see
+ * <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include "gimp.h"
+
+
+typedef struct
+{
+  gchar                  *palette_callback;
+  guint                   idle_id;
+  gchar                  *palette_name;
+  gint                    num_colors;
+  GimpRunPaletteCallback  callback;
+  gboolean                closing;
+  gpointer                data;
+} GimpPaletteData;
+
+
+/*  local function prototypes  */
+
+static void      gimp_palette_data_free     (GimpPaletteData  *data);
+
+static void      gimp_temp_palette_run      (const gchar      *name,
+                                             gint              nparams,
+                                             const GimpParam  *param,
+                                             gint             *nreturn_vals,
+                                             GimpParam       **return_vals);
+static gboolean  gimp_temp_palette_run_idle (GimpPaletteData  *palette_data);
+
+
+/*  private variables  */
+
+static GHashTable *gimp_palette_select_ht = NULL;
+
+
+/*  public functions  */
+
+const gchar *
+gimp_palette_select_new (const gchar            *title,
+                         const gchar            *palette_name,
+                         GimpRunPaletteCallback  callback,
+                         gpointer                data)
+{
+  static const GimpParamDef args[] =
+  {
+    { GIMP_PDB_STRING, "str",           "String"                      },
+    { GIMP_PDB_INT32,  "num-colors",    "Number of colors"            },
+    { GIMP_PDB_INT32,  "dialog-status", "If the dialog was closing "
+                                        "[0 = No, 1 = Yes]"           }
+  };
+
+  gchar *palette_callback = gimp_procedural_db_temp_name ();
+
+  gimp_install_temp_proc (palette_callback,
+                          "Temporary palette popup callback procedure",
+                          "",
+                          "",
+                          "",
+                          "",
+                          NULL,
+                          "",
+                          GIMP_TEMPORARY,
+                          G_N_ELEMENTS (args), 0,
+                          args, NULL,
+                          gimp_temp_palette_run);
+
+  if (gimp_palettes_popup (palette_callback, title, palette_name))
+    {
+      GimpPaletteData *palette_data;
+
+      gimp_extension_enable (); /* Allow callbacks to be watched */
+
+      /* Now add to hash table so we can find it again */
+      if (! gimp_palette_select_ht)
+        {
+          gimp_palette_select_ht =
+            g_hash_table_new_full (g_str_hash, g_str_equal,
+                                   g_free,
+                                   (GDestroyNotify) gimp_palette_data_free);
+        }
+
+      palette_data = g_slice_new0 (GimpPaletteData);
+
+      palette_data->palette_callback = palette_callback;
+      palette_data->callback      = callback;
+      palette_data->data          = data;
+
+      g_hash_table_insert (gimp_palette_select_ht,
+                           palette_callback, palette_data);
+
+      return palette_callback;
+    }
+
+  gimp_uninstall_temp_proc (palette_callback);
+  g_free (palette_callback);
+
+  return NULL;
+}
+
+void
+gimp_palette_select_destroy (const gchar *palette_callback)
+{
+  GimpPaletteData *palette_data;
+
+  g_return_if_fail (palette_callback != NULL);
+  g_return_if_fail (gimp_palette_select_ht != NULL);
+
+  palette_data = g_hash_table_lookup (gimp_palette_select_ht, palette_callback);
+
+  if (! palette_data)
+    {
+      g_warning ("Can't find internal palette data");
+      return;
+    }
+
+  if (palette_data->idle_id)
+    g_source_remove (palette_data->idle_id);
+
+  g_free (palette_data->palette_name);
+
+  if (palette_data->palette_callback)
+    gimp_palettes_close_popup (palette_data->palette_callback);
+
+  gimp_uninstall_temp_proc (palette_callback);
+
+  g_hash_table_remove (gimp_palette_select_ht, palette_callback);
+}
+
+
+/*  private functions  */
+
+static void
+gimp_palette_data_free (GimpPaletteData *data)
+{
+  g_slice_free (GimpPaletteData, data);
+}
+
+static void
+gimp_temp_palette_run (const gchar      *name,
+                       gint              nparams,
+                       const GimpParam  *param,
+                       gint             *nreturn_vals,
+                       GimpParam       **return_vals)
+{
+  static GimpParam  values[1];
+  GimpPaletteData  *palette_data;
+
+  palette_data = g_hash_table_lookup (gimp_palette_select_ht, name);
+
+  if (! palette_data)
+    {
+      g_warning ("Can't find internal palette data");
+    }
+  else
+    {
+      g_free (palette_data->palette_name);
+
+      palette_data->palette_name = g_strdup (param[0].data.d_string);
+      palette_data->num_colors   = param[1].data.d_int32;
+      palette_data->closing      = param[2].data.d_int32;
+
+      if (! palette_data->idle_id)
+        palette_data->idle_id = g_idle_add ((GSourceFunc) gimp_temp_palette_run_idle,
+                                            palette_data);
+    }
+
+  *nreturn_vals = 1;
+  *return_vals  = values;
+
+  values[0].type          = GIMP_PDB_STATUS;
+  values[0].data.d_status = GIMP_PDB_SUCCESS;
+}
+
+static gboolean
+gimp_temp_palette_run_idle (GimpPaletteData *palette_data)
+{
+  palette_data->idle_id = 0;
+
+  if (palette_data->callback)
+    palette_data->callback (palette_data->palette_name,
+                            palette_data->closing,
+                            palette_data->data);
+
+  if (palette_data->closing)
+    {
+      gchar *palette_callback = palette_data->palette_callback;
+
+      palette_data->palette_callback = NULL;
+      gimp_palette_select_destroy (palette_callback);
+    }
+
+  return FALSE;
+}