Adding upstream version 2.10.34.upstream/2.10.34upstream

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

1 files changed, 161 insertions, 0 deletions

diff --git a/app/core/gimpdrawable-stroke.c b/app/core/gimpdrawable-stroke.c
new file mode 100644
index 0000000..5b35d51
--- /dev/null
+++ b/app/core/gimpdrawable-stroke.c
@@ -0,0 +1,161 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpdrawable-stroke.c
+ * Copyright (C) 2003 Simon Budig  <simon@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 <cairo.h>
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <gegl.h>
+
+#include "libgimpbase/gimpbase.h"
+
+#include "core-types.h"
+
+#include "gimpchannel.h"
+#include "gimpdrawable-fill.h"
+#include "gimpdrawable-stroke.h"
+#include "gimperror.h"
+#include "gimpimage.h"
+#include "gimpscanconvert.h"
+#include "gimpstrokeoptions.h"
+
+#include "vectors/gimpvectors.h"
+
+#include "gimp-intl.h"
+
+
+/*  public functions  */
+
+void
+gimp_drawable_stroke_boundary (GimpDrawable       *drawable,
+                               GimpStrokeOptions  *options,
+                               const GimpBoundSeg *bound_segs,
+                               gint                n_bound_segs,
+                               gint                offset_x,
+                               gint                offset_y,
+                               gboolean            push_undo)
+{
+  GimpScanConvert *scan_convert;
+
+  g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
+  g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)));
+  g_return_if_fail (GIMP_IS_STROKE_OPTIONS (options));
+  g_return_if_fail (bound_segs == NULL || n_bound_segs != 0);
+  g_return_if_fail (gimp_fill_options_get_style (GIMP_FILL_OPTIONS (options)) !=
+                    GIMP_FILL_STYLE_PATTERN ||
+                    gimp_context_get_pattern (GIMP_CONTEXT (options)) != NULL);
+
+  scan_convert = gimp_scan_convert_new_from_boundary (bound_segs, n_bound_segs,
+                                                      offset_x, offset_y);
+
+  if (scan_convert)
+    {
+      gimp_drawable_stroke_scan_convert (drawable, options,
+                                         scan_convert, push_undo);
+      gimp_scan_convert_free (scan_convert);
+    }
+}
+
+gboolean
+gimp_drawable_stroke_vectors (GimpDrawable       *drawable,
+                              GimpStrokeOptions  *options,
+                              GimpVectors        *vectors,
+                              gboolean            push_undo,
+                              GError            **error)
+{
+  const GimpBezierDesc *bezier;
+
+  g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
+  g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)), FALSE);
+  g_return_val_if_fail (GIMP_IS_STROKE_OPTIONS (options), FALSE);
+  g_return_val_if_fail (GIMP_IS_VECTORS (vectors), FALSE);
+  g_return_val_if_fail (gimp_fill_options_get_style (GIMP_FILL_OPTIONS (options)) !=
+                        GIMP_FILL_STYLE_PATTERN ||
+                        gimp_context_get_pattern (GIMP_CONTEXT (options)) != NULL,
+                        FALSE);
+  g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
+
+  bezier = gimp_vectors_get_bezier (vectors);
+
+  if (bezier && bezier->num_data >= 2)
+    {
+      GimpScanConvert *scan_convert = gimp_scan_convert_new ();
+
+      gimp_scan_convert_add_bezier (scan_convert, bezier);
+      gimp_drawable_stroke_scan_convert (drawable, options,
+                                         scan_convert, push_undo);
+
+      gimp_scan_convert_free (scan_convert);
+
+      return TRUE;
+    }
+
+  g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
+                       _("Not enough points to stroke"));
+
+  return FALSE;
+}
+
+void
+gimp_drawable_stroke_scan_convert (GimpDrawable      *drawable,
+                                   GimpStrokeOptions *options,
+                                   GimpScanConvert   *scan_convert,
+                                   gboolean           push_undo)
+{
+  gdouble  width;
+  GimpUnit unit;
+
+  g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
+  g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)));
+  g_return_if_fail (GIMP_IS_STROKE_OPTIONS (options));
+  g_return_if_fail (scan_convert != NULL);
+  g_return_if_fail (gimp_fill_options_get_style (GIMP_FILL_OPTIONS (options)) !=
+                    GIMP_FILL_STYLE_PATTERN ||
+                    gimp_context_get_pattern (GIMP_CONTEXT (options)) != NULL);
+
+  if (! gimp_item_mask_intersect (GIMP_ITEM (drawable), NULL, NULL, NULL, NULL))
+    return;
+
+  width = gimp_stroke_options_get_width (options);
+  unit  = gimp_stroke_options_get_unit (options);
+
+  if (unit != GIMP_UNIT_PIXEL)
+    {
+      GimpImage *image = gimp_item_get_image (GIMP_ITEM (drawable));
+      gdouble    xres;
+      gdouble    yres;
+
+      gimp_image_get_resolution (image, &xres, &yres);
+
+      gimp_scan_convert_set_pixel_ratio (scan_convert, yres / xres);
+
+      width = gimp_units_to_pixels (width, unit, yres);
+    }
+
+  gimp_scan_convert_stroke (scan_convert, width,
+                            gimp_stroke_options_get_join_style (options),
+                            gimp_stroke_options_get_cap_style (options),
+                            gimp_stroke_options_get_miter_limit (options),
+                            gimp_stroke_options_get_dash_offset (options),
+                            gimp_stroke_options_get_dash_info (options));
+
+  gimp_drawable_fill_scan_convert (drawable, GIMP_FILL_OPTIONS (options),
+                                   scan_convert, push_undo);
+}