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-rw-r--r--app/widgets/gimpgradientselect.c195
1 files changed, 195 insertions, 0 deletions
diff --git a/app/widgets/gimpgradientselect.c b/app/widgets/gimpgradientselect.c
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+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpgradientselect.c
+ * Copyright (C) 2004 Michael Natterer <mitch@gimp.org>
+ *
+ * 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 <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpbase/gimpbase.h"
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "widgets-types.h"
+
+#include "core/gimp.h"
+#include "core/gimpcontext.h"
+#include "core/gimpgradient.h"
+#include "core/gimpparamspecs.h"
+
+#include "pdb/gimppdb.h"
+
+#include "gimpcontainerbox.h"
+#include "gimpdatafactoryview.h"
+#include "gimpgradientselect.h"
+
+
+enum
+{
+ PROP_0,
+ PROP_SAMPLE_SIZE
+};
+
+
+static void gimp_gradient_select_constructed (GObject *object);
+static void gimp_gradient_select_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec);
+
+static GimpValueArray * gimp_gradient_select_run_callback (GimpPdbDialog *dialog,
+ GimpObject *object,
+ gboolean closing,
+ GError **error);
+
+
+G_DEFINE_TYPE (GimpGradientSelect, gimp_gradient_select,
+ GIMP_TYPE_PDB_DIALOG)
+
+#define parent_class gimp_gradient_select_parent_class
+
+
+static void
+gimp_gradient_select_class_init (GimpGradientSelectClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GimpPdbDialogClass *pdb_class = GIMP_PDB_DIALOG_CLASS (klass);
+
+ object_class->constructed = gimp_gradient_select_constructed;
+ object_class->set_property = gimp_gradient_select_set_property;
+
+ pdb_class->run_callback = gimp_gradient_select_run_callback;
+
+ g_object_class_install_property (object_class, PROP_SAMPLE_SIZE,
+ g_param_spec_int ("sample-size", NULL, NULL,
+ 0, 10000, 84,
+ GIMP_PARAM_WRITABLE |
+ G_PARAM_CONSTRUCT_ONLY));
+}
+
+static void
+gimp_gradient_select_init (GimpGradientSelect *select)
+{
+}
+
+static void
+gimp_gradient_select_constructed (GObject *object)
+{
+ GimpPdbDialog *dialog = GIMP_PDB_DIALOG (object);
+ GtkWidget *content_area;
+
+ G_OBJECT_CLASS (parent_class)->constructed (object);
+
+ dialog->view =
+ gimp_data_factory_view_new (GIMP_VIEW_TYPE_LIST,
+ dialog->context->gimp->gradient_factory,
+ dialog->context,
+ GIMP_VIEW_SIZE_MEDIUM, 1,
+ dialog->menu_factory, "<Gradients>",
+ "/gradients-popup",
+ "gradients");
+
+ gimp_container_box_set_size_request (GIMP_CONTAINER_BOX (GIMP_CONTAINER_EDITOR (dialog->view)->view),
+ 6 * (GIMP_VIEW_SIZE_MEDIUM + 2),
+ 6 * (GIMP_VIEW_SIZE_MEDIUM + 2));
+
+ gtk_container_set_border_width (GTK_CONTAINER (dialog->view), 12);
+
+ content_area = gtk_dialog_get_content_area (GTK_DIALOG (dialog));
+ gtk_box_pack_start (GTK_BOX (content_area), dialog->view, TRUE, TRUE, 0);
+ gtk_widget_show (dialog->view);
+}
+
+static void
+gimp_gradient_select_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GimpGradientSelect *select = GIMP_GRADIENT_SELECT (object);
+
+ switch (property_id)
+ {
+ case PROP_SAMPLE_SIZE:
+ select->sample_size = g_value_get_int (value);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static GimpValueArray *
+gimp_gradient_select_run_callback (GimpPdbDialog *dialog,
+ GimpObject *object,
+ gboolean closing,
+ GError **error)
+{
+ GimpGradient *gradient = GIMP_GRADIENT (object);
+ GimpGradientSegment *seg = NULL;
+ gdouble *values, *pv;
+ gdouble pos, delta;
+ GimpRGB color;
+ gint i;
+ GimpArray *array;
+ GimpValueArray *return_vals;
+
+ i = GIMP_GRADIENT_SELECT (dialog)->sample_size;
+ pos = 0.0;
+ delta = 1.0 / (i - 1);
+
+ values = g_new (gdouble, 4 * i);
+ pv = values;
+
+ while (i--)
+ {
+ seg = gimp_gradient_get_color_at (gradient, dialog->caller_context,
+ seg, pos, FALSE,
+ GIMP_GRADIENT_BLEND_RGB_PERCEPTUAL,
+ &color);
+
+ *pv++ = color.r;
+ *pv++ = color.g;
+ *pv++ = color.b;
+ *pv++ = color.a;
+
+ pos += delta;
+ }
+
+ array = gimp_array_new ((guint8 *) values,
+ GIMP_GRADIENT_SELECT (dialog)->sample_size * 4 *
+ sizeof (gdouble),
+ TRUE);
+ array->static_data = FALSE;
+
+ return_vals =
+ gimp_pdb_execute_procedure_by_name (dialog->pdb,
+ dialog->caller_context,
+ NULL, error,
+ dialog->callback_name,
+ G_TYPE_STRING, gimp_object_get_name (object),
+ GIMP_TYPE_INT32, array->length / sizeof (gdouble),
+ GIMP_TYPE_FLOAT_ARRAY, array,
+ GIMP_TYPE_INT32, closing,
+ G_TYPE_NONE);
+
+ gimp_array_free (array);
+
+ return return_vals;
+}