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-rw-r--r--libgimp/gimpbrushselect.c240
1 files changed, 240 insertions, 0 deletions
diff --git a/libgimp/gimpbrushselect.c b/libgimp/gimpbrushselect.c
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+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
+ *
+ * gimpbrushselect.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 *brush_callback;
+ guint idle_id;
+ gchar *brush_name;
+ gdouble opacity;
+ gint spacing;
+ gint paint_mode;
+ gint width;
+ gint height;
+ guchar *brush_mask_data;
+ GimpRunBrushCallback callback;
+ gboolean closing;
+ gpointer data;
+} GimpBrushData;
+
+
+/* local function prototypes */
+
+static void gimp_brush_data_free (GimpBrushData *data);
+
+static void gimp_temp_brush_run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals);
+static gboolean gimp_temp_brush_run_idle (GimpBrushData *brush_data);
+
+
+/* private variables */
+
+static GHashTable *gimp_brush_select_ht = NULL;
+
+
+/* public functions */
+
+const gchar *
+gimp_brush_select_new (const gchar *title,
+ const gchar *brush_name,
+ gdouble opacity,
+ gint spacing,
+ GimpLayerMode paint_mode,
+ GimpRunBrushCallback callback,
+ gpointer data)
+{
+ static const GimpParamDef args[] =
+ {
+ { GIMP_PDB_STRING, "str", "String" },
+ { GIMP_PDB_FLOAT, "opacity", "Opacity" },
+ { GIMP_PDB_INT32, "spacing", "Spacing" },
+ { GIMP_PDB_INT32, "paint-mode", "Paint mode" },
+ { GIMP_PDB_INT32, "mask-width", "Brush width" },
+ { GIMP_PDB_INT32, "mask-height", "Brush height" },
+ { GIMP_PDB_INT32, "mask-len", "Length of brush mask data" },
+ { GIMP_PDB_INT8ARRAY, "mask-data", "The brush mask data" },
+ { GIMP_PDB_INT32, "dialog-status", "If the dialog was closing "
+ "[0 = No, 1 = Yes]" }
+ };
+
+ gchar *brush_callback = gimp_procedural_db_temp_name ();
+
+ gimp_install_temp_proc (brush_callback,
+ "Temporary brush popup callback procedure",
+ "",
+ "",
+ "",
+ "",
+ NULL,
+ "",
+ GIMP_TEMPORARY,
+ G_N_ELEMENTS (args), 0,
+ args, NULL,
+ gimp_temp_brush_run);
+
+ if (gimp_brushes_popup (brush_callback, title, brush_name,
+ opacity, spacing, paint_mode))
+ {
+ GimpBrushData *brush_data;
+
+ gimp_extension_enable (); /* Allow callbacks to be watched */
+
+ /* Now add to hash table so we can find it again */
+ if (! gimp_brush_select_ht)
+ {
+ gimp_brush_select_ht =
+ g_hash_table_new_full (g_str_hash, g_str_equal,
+ g_free,
+ (GDestroyNotify) gimp_brush_data_free);
+ }
+
+ brush_data = g_slice_new0 (GimpBrushData);
+
+ brush_data->brush_callback = brush_callback;
+ brush_data->callback = callback;
+ brush_data->data = data;
+
+ g_hash_table_insert (gimp_brush_select_ht, brush_callback, brush_data);
+
+ return brush_callback;
+ }
+
+ gimp_uninstall_temp_proc (brush_callback);
+ g_free (brush_callback);
+
+ return NULL;
+}
+
+void
+gimp_brush_select_destroy (const gchar *brush_callback)
+{
+ GimpBrushData *brush_data;
+
+ g_return_if_fail (brush_callback != NULL);
+ g_return_if_fail (gimp_brush_select_ht != NULL);
+
+ brush_data = g_hash_table_lookup (gimp_brush_select_ht, brush_callback);
+
+ if (! brush_data)
+ {
+ g_warning ("Can't find internal brush data");
+ return;
+ }
+
+ if (brush_data->idle_id)
+ g_source_remove (brush_data->idle_id);
+
+ g_free (brush_data->brush_name);
+ g_free (brush_data->brush_mask_data);
+
+ if (brush_data->brush_callback)
+ gimp_brushes_close_popup (brush_data->brush_callback);
+
+ gimp_uninstall_temp_proc (brush_callback);
+
+ g_hash_table_remove (gimp_brush_select_ht, brush_callback);
+}
+
+
+/* private functions */
+
+static void
+gimp_brush_data_free (GimpBrushData *data)
+{
+ g_slice_free (GimpBrushData, data);
+}
+
+static void
+gimp_temp_brush_run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals)
+{
+ static GimpParam values[1];
+ GimpBrushData *brush_data;
+
+ brush_data = g_hash_table_lookup (gimp_brush_select_ht, name);
+
+ if (! brush_data)
+ {
+ g_warning ("Can't find internal brush data");
+ }
+ else
+ {
+ g_free (brush_data->brush_name);
+ g_free (brush_data->brush_mask_data);
+
+ brush_data->brush_name = g_strdup (param[0].data.d_string);
+ brush_data->opacity = param[1].data.d_float;
+ brush_data->spacing = param[2].data.d_int32;
+ brush_data->paint_mode = param[3].data.d_int32;
+ brush_data->width = param[4].data.d_int32;
+ brush_data->height = param[5].data.d_int32;
+ brush_data->brush_mask_data = g_memdup (param[7].data.d_int8array,
+ param[6].data.d_int32);
+ brush_data->closing = param[8].data.d_int32;
+
+ if (! brush_data->idle_id)
+ brush_data->idle_id = g_idle_add ((GSourceFunc) gimp_temp_brush_run_idle,
+ brush_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_brush_run_idle (GimpBrushData *brush_data)
+{
+ brush_data->idle_id = 0;
+
+ if (brush_data->callback)
+ brush_data->callback (brush_data->brush_name,
+ brush_data->opacity,
+ brush_data->spacing,
+ brush_data->paint_mode,
+ brush_data->width,
+ brush_data->height,
+ brush_data->brush_mask_data,
+ brush_data->closing,
+ brush_data->data);
+
+ if (brush_data->closing)
+ {
+ gchar *brush_callback = brush_data->brush_callback;
+
+ brush_data->brush_callback = NULL;
+ gimp_brush_select_destroy (brush_callback);
+ }
+
+ return FALSE;
+}
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