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Diffstat (limited to 'app/core/gimpimage-metadata.c')
| -rw-r--r-- | app/core/gimpimage-metadata.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/app/core/gimpimage-metadata.c b/app/core/gimpimage-metadata.c new file mode 100644 index 0000000..ae0774f --- /dev/null +++ b/app/core/gimpimage-metadata.c @@ -0,0 +1,184 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * 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 "libgimpcolor/gimpcolor.h" + +#include "core-types.h" + +#include "gimpimage.h" +#include "gimpimage-color-profile.h" +#include "gimpimage-metadata.h" +#include "gimpimage-private.h" +#include "gimpimage-undo-push.h" + + +/* public functions */ + + +GimpMetadata * +gimp_image_get_metadata (GimpImage *image) +{ + GimpImagePrivate *private; + + g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL); + + private = GIMP_IMAGE_GET_PRIVATE (image); + + return private->metadata; +} + +void +gimp_image_set_metadata (GimpImage *image, + GimpMetadata *metadata, + gboolean push_undo) +{ + GimpImagePrivate *private; + + g_return_if_fail (GIMP_IS_IMAGE (image)); + + private = GIMP_IMAGE_GET_PRIVATE (image); + + if (metadata != private->metadata) + { + if (push_undo) + gimp_image_undo_push_image_metadata (image, NULL); + + g_set_object (&private->metadata, metadata); + + if (private->metadata) + { + gimp_image_metadata_update_pixel_size (image); + gimp_image_metadata_update_bits_per_sample (image); + gimp_image_metadata_update_resolution (image); + gimp_image_metadata_update_colorspace (image); + } + + g_object_notify (G_OBJECT (image), "metadata"); + } +} + +void +gimp_image_metadata_update_pixel_size (GimpImage *image) +{ + GimpMetadata *metadata; + + g_return_if_fail (GIMP_IS_IMAGE (image)); + + metadata = gimp_image_get_metadata (image); + + if (metadata) + { + gimp_metadata_set_pixel_size (metadata, + gimp_image_get_width (image), + gimp_image_get_height (image)); + } +} + +void +gimp_image_metadata_update_bits_per_sample (GimpImage *image) +{ + GimpMetadata *metadata; + + g_return_if_fail (GIMP_IS_IMAGE (image)); + + metadata = gimp_image_get_metadata (image); + + if (metadata) + { + switch (gimp_image_get_component_type (image)) + { + case GIMP_COMPONENT_TYPE_U8: + gimp_metadata_set_bits_per_sample (metadata, 8); + break; + + case GIMP_COMPONENT_TYPE_U16: + case GIMP_COMPONENT_TYPE_HALF: + gimp_metadata_set_bits_per_sample (metadata, 16); + break; + + case GIMP_COMPONENT_TYPE_U32: + case GIMP_COMPONENT_TYPE_FLOAT: + gimp_metadata_set_bits_per_sample (metadata, 32); + break; + + case GIMP_COMPONENT_TYPE_DOUBLE: + gimp_metadata_set_bits_per_sample (metadata, 64); + break; + } + } +} + +void +gimp_image_metadata_update_resolution (GimpImage *image) +{ + GimpMetadata *metadata; + + g_return_if_fail (GIMP_IS_IMAGE (image)); + + metadata = gimp_image_get_metadata (image); + + if (metadata) + { + gdouble xres, yres; + + gimp_image_get_resolution (image, &xres, &yres); + gimp_metadata_set_resolution (metadata, xres, yres, + gimp_image_get_unit (image)); + } +} + +void +gimp_image_metadata_update_colorspace (GimpImage *image) +{ + GimpMetadata *metadata; + + g_return_if_fail (GIMP_IS_IMAGE (image)); + + metadata = gimp_image_get_metadata (image); + + if (metadata) + { + /* See the discussions in issue #3532 and issue #301 */ + + GimpColorProfile *profile = gimp_image_get_color_profile (image); + GimpMetadataColorspace space = GIMP_METADATA_COLORSPACE_UNSPECIFIED; + + if (profile) + { + static GimpColorProfile *adobe = NULL; + + if (! adobe) + adobe = gimp_color_profile_new_rgb_adobe (); + + if (gimp_color_profile_is_equal (profile, adobe)) + space = GIMP_METADATA_COLORSPACE_ADOBERGB; + } + else + { + space = GIMP_METADATA_COLORSPACE_SRGB; + } + + gimp_metadata_set_colorspace (metadata, space); + } +} |