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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:30:19 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:30:19 +0000
commit5c1676dfe6d2f3c837a5e074117b45613fd29a72 (patch)
treecbffb45144febf451e54061db2b21395faf94bfe /plug-ins/common/compose.c
parentInitial commit. (diff)
downloadgimp-5c1676dfe6d2f3c837a5e074117b45613fd29a72.tar.xz
gimp-5c1676dfe6d2f3c837a5e074117b45613fd29a72.zip
Adding upstream version 2.10.34.upstream/2.10.34upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--plug-ins/common/compose.c1402
1 files changed, 1402 insertions, 0 deletions
diff --git a/plug-ins/common/compose.c b/plug-ins/common/compose.c
new file mode 100644
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--- /dev/null
+++ b/plug-ins/common/compose.c
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+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * Compose plug-in (C) 1997,1999 Peter Kirchgessner
+ * e-mail: peter@kirchgessner.net, WWW: http://www.kirchgessner.net
+ *
+ * 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/>.
+ */
+
+/*
+ * This plug-in composes RGB-images from several types of channels
+ */
+
+/* Lab colorspace support originally written by Alexey Dyachenko,
+ * merged into the official plug-in by Sven Neumann.
+ *
+ * Support for channels empty or filled with a single mask value
+ * added by Sylvain FORET.
+ */
+
+/*
+ * All redundant _256 versions of YCbCr* are here only for compatibility .
+ * They can be dropped for GIMP 3.0
+ */
+
+#include "config.h"
+
+#include <string.h>
+
+#include <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+
+#include "libgimp/stdplugins-intl.h"
+
+
+#define COMPOSE_PROC "plug-in-compose"
+#define DRAWABLE_COMPOSE_PROC "plug-in-drawable-compose"
+#define RECOMPOSE_PROC "plug-in-recompose"
+#define PLUG_IN_BINARY "compose"
+#define PLUG_IN_ROLE "gimp-compose"
+
+/* Maximum number of images to compose */
+#define MAX_COMPOSE_IMAGES 4
+
+typedef struct
+{
+ union
+ {
+ gint32 ID; /* Image ID of input images or drawable */
+ guchar val; /* Mask value to compose with */
+ } comp;
+ gboolean is_ID;
+} ComposeInput;
+
+/* Description of a component */
+typedef struct
+{
+ const gchar *babl_name;
+ const gchar *name;
+ const gchar *icon;
+ const float range_min; /* val min of the component */
+ const float range_max; /* val max of the component */
+ const gboolean is_perceptual; /* Take the componenent from an Y' or Y buffer */
+} COMPONENT_DSC;
+
+/* Description of a composition */
+typedef struct
+{
+ const gchar *babl_model;
+ const gchar *compose_type; /* Type of composition ("RGB", "RGBA",...) */
+ gint num_images; /* Number of input images needed */
+ /* Channel information */
+ const COMPONENT_DSC components[MAX_COMPOSE_IMAGES];
+ const gchar *filename; /* Name of new image */
+
+} COMPOSE_DSC;
+
+
+/* Declare local functions
+ */
+static void query (void);
+static void run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals);
+
+static void cpn_affine_transform (GeglBuffer *buffer,
+ gdouble min,
+ gdouble max);
+
+static void fill_buffer_from_components (GeglBuffer *temp[MAX_COMPOSE_IMAGES],
+ GeglBuffer *dst,
+ gint num_cpn,
+ ComposeInput *inputs,
+ gdouble mask_vals[MAX_COMPOSE_IMAGES]);
+
+static void perform_composition (COMPOSE_DSC curr_compose_dsc,
+ GeglBuffer *buffer_src[MAX_COMPOSE_IMAGES],
+ GeglBuffer *buffer_dst,
+ ComposeInput *inputs,
+ gint num_images);
+
+static gint32 compose (const gchar *compose_type,
+ ComposeInput *inputs,
+ gboolean compose_by_drawable);
+
+static gint32 create_new_image (const gchar *filename,
+ guint width,
+ guint height,
+ GimpImageType gdtype,
+ GimpPrecision precision,
+ gint32 *layer_ID,
+ GeglBuffer **drawable);
+
+static gboolean compose_dialog (const gchar *compose_type,
+ gint32 drawable_ID);
+
+static gboolean check_gray (gint32 image_id,
+ gint32 drawable_id,
+ gpointer data);
+
+static void combo_callback (GimpIntComboBox *cbox,
+ gpointer data);
+
+static void scale_callback (GtkAdjustment *adj,
+ ComposeInput *input);
+
+static void check_response (GtkWidget *dialog,
+ gint response,
+ gpointer data);
+
+static void type_combo_callback (GimpIntComboBox *combo,
+ gpointer data);
+
+
+
+/* Decompositions availables.
+ * All the following values have to be kept in sync with those of decompose.c
+ */
+
+#define CPN_RGBA_R { "R", N_("_Red:"), GIMP_ICON_CHANNEL_RED, 0.0, 1.0, FALSE}
+#define CPN_RGBA_G { "G", N_("_Green:"), GIMP_ICON_CHANNEL_GREEN, 0.0, 1.0, FALSE}
+#define CPN_RGBA_B { "B", N_("_Blue:"), GIMP_ICON_CHANNEL_BLUE, 0.0, 1.0, FALSE}
+#define CPN_RGBA_A { "A", N_("_Alpha:"), GIMP_ICON_CHANNEL_ALPHA, 0.0, 1.0, TRUE}
+
+#define CPN_HSV_H { "hue", N_("_Hue:"), NULL, 0.0, 1.0, TRUE}
+#define CPN_HSV_S { "saturation", N_("_Saturation:"), NULL, 0.0, 1.0, TRUE}
+#define CPN_HSV_V { "value", N_("_Value:"), NULL, 0.0, 1.0, TRUE}
+
+#define CPN_HSL_H { "hue", N_("_Hue:"), NULL, 0.0, 1.0, TRUE}
+#define CPN_HSL_S { "saturation", N_("_Saturation:"), NULL, 0.0, 1.0, TRUE}
+#define CPN_HSL_L { "lightness", N_("_Lightness:"), NULL, 0.0, 1.0, TRUE}
+
+#define CPN_CMYK_C { "Cyan", N_("_Cyan:"), NULL, 0.0, 1.0, TRUE}
+#define CPN_CMYK_M { "Magenta", N_("_Magenta:"), NULL, 0.0, 1.0, TRUE}
+#define CPN_CMYK_Y { "Yellow", N_("_Yellow:"), NULL, 0.0, 1.0, TRUE}
+#define CPN_CMYK_K { "Key", N_("_Black:"), NULL, 0.0, 1.0, TRUE}
+
+#define CPN_LAB_L { "CIE L", N_("_L:"), NULL, 0.0, 100.0, TRUE}
+#define CPN_LAB_A { "CIE a", N_("_A:"), NULL, -127.5, 127.5, TRUE}
+#define CPN_LAB_B { "CIE b", N_("_B:"), NULL, -127.5, 127.5, TRUE}
+
+#define CPN_LCH_L { "CIE L", N_("_L"), NULL, 0.0, 100.0, TRUE}
+#define CPN_LCH_C { "CIE C(ab)", N_("_C"), NULL, 0.0, 200.0, TRUE}
+#define CPN_LCH_H { "CIE H(ab)", N_("_H"), NULL, 0.0, 360.0, TRUE}
+
+#define CPN_YCBCR_Y { "Y'", N_("_Luma y470:"), NULL, 0.0, 1.0, TRUE }
+#define CPN_YCBCR_CB { "Cb", N_("_Blueness cb470:"), NULL, -0.5, 0.5, TRUE }
+#define CPN_YCBCR_CR { "Cr", N_("_Redness cr470:"), NULL, -0.5, 0.5, TRUE }
+
+#define CPN_YCBCR709_Y { "Y'", N_("_Luma y709:"), NULL, 0.0, 1.0, TRUE }
+#define CPN_YCBCR709_CB { "Cb", N_("_Blueness cb709:"), NULL, -0.5, 0.5, TRUE }
+#define CPN_YCBCR709_CR { "Cr", N_("_Redness cr709:"), NULL, -0.5, 0.5, TRUE }
+
+
+static COMPOSE_DSC compose_dsc[] =
+{
+ { "RGB",
+ N_("RGB"), 3,
+ { CPN_RGBA_R,
+ CPN_RGBA_G,
+ CPN_RGBA_B },
+ "rgb-compose" },
+
+ { "RGBA",
+ N_("RGBA"), 4,
+ { CPN_RGBA_R,
+ CPN_RGBA_G,
+ CPN_RGBA_B,
+ CPN_RGBA_A },
+ "rgba-compose" },
+
+ { "HSV",
+ N_("HSV"), 3,
+ { CPN_HSV_H,
+ CPN_HSV_S,
+ CPN_HSV_V },
+ "hsv-compose" },
+
+ { "HSL",
+ N_("HSL"), 3,
+ { CPN_HSL_H,
+ CPN_HSL_S,
+ CPN_HSL_L },
+ "hsl-compose" },
+
+ { "CMYK",
+ N_("CMYK"), 4,
+ { CPN_CMYK_C,
+ CPN_CMYK_M,
+ CPN_CMYK_Y,
+ CPN_CMYK_K },
+ "cmyk-compose" },
+
+ { "CIE Lab",
+ N_("LAB"), 3,
+ { CPN_LAB_L,
+ CPN_LAB_A,
+ CPN_LAB_B },
+ "lab-compose" },
+
+ { "CIE LCH(ab)",
+ N_("LCH"), 3,
+ { CPN_LCH_L,
+ CPN_LCH_C,
+ CPN_LCH_H },
+ "lch-compose" },
+
+ { "Y'CbCr",
+ N_("YCbCr_ITU_R470"), 3,
+ { CPN_YCBCR_Y,
+ CPN_YCBCR_CB,
+ CPN_YCBCR_CR },
+ "ycbcr470-compose" },
+
+ { "Y'CbCr709",
+ N_("YCbCr_ITU_R709"), 3,
+ { CPN_YCBCR709_Y,
+ CPN_YCBCR709_CB,
+ CPN_YCBCR709_CR },
+ "ycbcr709-compose" },
+
+ { "Y'CbCr",
+ N_("YCbCr_ITU_R470_256"), 3,
+ { CPN_YCBCR_Y,
+ CPN_YCBCR_CB,
+ CPN_YCBCR_CR },
+ "ycbcr470F-compose" },
+
+ { "Y'CbCr709",
+ N_("YCbCr_ITU_R709_256"), 3,
+ { CPN_YCBCR709_Y,
+ CPN_YCBCR709_CB,
+ CPN_YCBCR709_CR },
+ "ycbcr709F-compose" }
+};
+
+
+typedef struct
+{
+ ComposeInput inputs[MAX_COMPOSE_IMAGES]; /* Image IDs or mask value of input */
+ gchar compose_type[32]; /* type of composition */
+ gboolean do_recompose;
+ gint32 source_layer_ID; /* for recomposing */
+} ComposeVals;
+
+/* Dialog structure */
+typedef struct
+{
+ gint width, height; /* Size of selected image */
+
+ GtkWidget *channel_label[MAX_COMPOSE_IMAGES]; /* The labels to change */
+ GtkWidget *channel_icon[MAX_COMPOSE_IMAGES]; /* The icons */
+ GtkWidget *channel_menu[MAX_COMPOSE_IMAGES]; /* The menus */
+ GtkWidget *color_scales[MAX_COMPOSE_IMAGES]; /* The values color scales */
+ GtkWidget *color_spins[MAX_COMPOSE_IMAGES]; /* The values spin buttons */
+
+ ComposeInput selected[MAX_COMPOSE_IMAGES]; /* Image Ids or mask values from menus */
+
+ gint compose_idx; /* Compose type */
+} ComposeInterface;
+
+const GimpPlugInInfo PLUG_IN_INFO =
+{
+ NULL, /* init_proc */
+ NULL, /* quit_proc */
+ query, /* query_proc */
+ run, /* run_proc */
+};
+
+static ComposeVals composevals =
+{
+ {{{ 0 }}}, /* Image IDs of images to compose or mask values */
+ "rgb", /* Type of composition */
+ FALSE, /* Do recompose */
+ -1 /* source layer ID */
+};
+
+static ComposeInterface composeint =
+{
+ 0, 0, /* width, height */
+ { NULL }, /* Label Widgets */
+ { NULL }, /* Icon Widgets */
+ { NULL }, /* Menu Widgets */
+ { NULL }, /* Color Scale Widgets */
+ { NULL }, /* Color Spin Widgets */
+ {{{ 0 }}}, /* Image Ids or mask values from menus */
+ 0 /* Compose type */
+};
+
+
+MAIN ()
+
+
+static void
+query (void)
+{
+ static GimpParamDef args[] =
+ {
+ { GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
+ { GIMP_PDB_IMAGE, "image1", "First input image" },
+ { GIMP_PDB_DRAWABLE, "drawable", "Input drawable (not used)" },
+ { GIMP_PDB_IMAGE, "image2", "Second input image" },
+ { GIMP_PDB_IMAGE, "image3", "Third input image" },
+ { GIMP_PDB_IMAGE, "image4", "Fourth input image" },
+ { GIMP_PDB_STRING, "compose-type", NULL }
+ };
+
+ static const GimpParamDef return_vals[] =
+ {
+ { GIMP_PDB_IMAGE, "new_image", "Output image" }
+ };
+
+ static GimpParamDef drw_args[] =
+ {
+ { GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
+ { GIMP_PDB_IMAGE, "image1", "First input image (not used)" },
+ { GIMP_PDB_DRAWABLE, "drawable1", "First input drawable" },
+ { GIMP_PDB_DRAWABLE, "drawable2", "Second input drawable" },
+ { GIMP_PDB_DRAWABLE, "drawable3", "Third input drawable" },
+ { GIMP_PDB_DRAWABLE, "drawable4", "Fourth input drawable" },
+ { GIMP_PDB_STRING, "compose-type", NULL }
+ };
+
+ static const GimpParamDef drw_return_vals[] =
+ {
+ { GIMP_PDB_IMAGE, "new_image", "Output image" }
+ };
+
+ static const GimpParamDef recompose_args[] =
+ {
+ { GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
+ { GIMP_PDB_IMAGE, "image", "Image to recompose from" },
+ { GIMP_PDB_DRAWABLE, "drawable", "Not used" },
+ };
+
+ GString *type_desc;
+ gint i;
+
+ type_desc = g_string_new ("What to compose: ");
+ g_string_append_c (type_desc, '"');
+ g_string_append (type_desc, compose_dsc[0].compose_type);
+ g_string_append_c (type_desc, '"');
+
+ for (i = 1; i < G_N_ELEMENTS (compose_dsc); i++)
+ {
+ g_string_append (type_desc, ", ");
+ g_string_append_c (type_desc, '"');
+ g_string_append (type_desc, compose_dsc[i].compose_type);
+ g_string_append_c (type_desc, '"');
+ }
+
+ args[6].description = type_desc->str;
+ drw_args[6].description = type_desc->str;
+
+ gimp_install_procedure (COMPOSE_PROC,
+ N_("Create an image using multiple gray images as color channels"),
+ "This function creates a new image from "
+ "multiple gray images",
+ "Peter Kirchgessner",
+ "Peter Kirchgessner (peter@kirchgessner.net)",
+ "1997",
+ N_("C_ompose..."),
+ "GRAY*",
+ GIMP_PLUGIN,
+ G_N_ELEMENTS (args),
+ G_N_ELEMENTS (return_vals),
+ args, return_vals);
+
+ gimp_plugin_menu_register (COMPOSE_PROC, "<Image>/Colors/Components");
+
+ gimp_install_procedure (DRAWABLE_COMPOSE_PROC,
+ "Compose an image from multiple drawables of gray images",
+ "This function creates a new image from "
+ "multiple drawables of gray images",
+ "Peter Kirchgessner",
+ "Peter Kirchgessner (peter@kirchgessner.net)",
+ "1998",
+ NULL, /* It is not available in interactive mode */
+ "GRAY*",
+ GIMP_PLUGIN,
+ G_N_ELEMENTS (drw_args),
+ G_N_ELEMENTS (drw_return_vals),
+ drw_args, drw_return_vals);
+
+ gimp_install_procedure (RECOMPOSE_PROC,
+ N_("Recompose an image that was previously decomposed"),
+ "This function recombines the grayscale layers produced "
+ "by Decompose into a single RGB or RGBA layer, and "
+ "replaces the originally decomposed layer with the "
+ "result.",
+ "Bill Skaggs",
+ "Bill Skaggs",
+ "2004",
+ N_("R_ecompose"),
+ "GRAY*",
+ GIMP_PLUGIN,
+ G_N_ELEMENTS (recompose_args), 0,
+ recompose_args, NULL);
+
+ gimp_plugin_menu_register (RECOMPOSE_PROC, "<Image>/Colors/Components");
+
+ g_string_free (type_desc, TRUE);
+}
+
+
+static void
+run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals)
+{
+ static GimpParam values[2];
+ GimpPDBStatusType status = GIMP_PDB_SUCCESS;
+ GimpRunMode run_mode;
+ gint32 image_ID;
+ gint32 drawable_ID = -1;
+ gint compose_by_drawable;
+ gint i;
+
+ INIT_I18N ();
+ gegl_init (NULL, NULL);
+
+ run_mode = param[0].data.d_int32;
+ compose_by_drawable = (strcmp (name, DRAWABLE_COMPOSE_PROC) == 0);
+
+ *nreturn_vals = 1;
+ *return_vals = values;
+
+ values[0].type = GIMP_PDB_STATUS;
+ values[0].data.d_status = status;
+ values[1].type = GIMP_PDB_IMAGE;
+ values[1].data.d_int32 = -1;
+
+ if (strcmp (name, RECOMPOSE_PROC) == 0)
+ {
+ GimpParasite *parasite = gimp_image_get_parasite (param[1].data.d_image,
+ "decompose-data");
+
+ if (! parasite)
+ {
+ g_message (_("You can only run 'Recompose' if the active image "
+ "was originally produced by 'Decompose'."));
+ status = GIMP_PDB_EXECUTION_ERROR;
+ }
+ else
+ {
+ gint nret;
+
+ nret = sscanf (gimp_parasite_data (parasite),
+ "source=%d type=%31s %d %d %d %d",
+ &composevals.source_layer_ID,
+ composevals.compose_type,
+ &composevals.inputs[0].comp.ID,
+ &composevals.inputs[1].comp.ID,
+ &composevals.inputs[2].comp.ID,
+ &composevals.inputs[3].comp.ID);
+
+ gimp_parasite_free (parasite);
+
+ for (i = 0; i < MAX_COMPOSE_IMAGES; i++)
+ composevals.inputs[i].is_ID = TRUE;
+
+ if (nret < 5)
+ {
+ g_message (_("Error scanning 'decompose-data' parasite: "
+ "too few layers found"));
+ status = GIMP_PDB_EXECUTION_ERROR;
+ }
+ else
+ {
+ composevals.do_recompose = TRUE;
+ compose_by_drawable = TRUE;
+ }
+ }
+ }
+ else
+ {
+ composevals.do_recompose = FALSE;
+
+ switch (run_mode)
+ {
+ case GIMP_RUN_INTERACTIVE:
+ /* Possibly retrieve data */
+ gimp_get_data (name, &composevals);
+
+ compose_by_drawable = TRUE;
+
+ /* The dialog is now drawable based. Get a drawable-ID of the image */
+ if (strcmp (name, COMPOSE_PROC) == 0)
+ {
+ gint32 *layer_list;
+ gint nlayers;
+
+ layer_list = gimp_image_get_layers (param[1].data.d_int32,
+ &nlayers);
+ if ((layer_list == NULL) || (nlayers <= 0))
+ {
+ g_message (_("Could not get layers for image %d"),
+ (gint) param[1].data.d_int32);
+ return;
+ }
+
+ drawable_ID = layer_list[0];
+ g_free (layer_list);
+ }
+ else
+ {
+ drawable_ID = param[2].data.d_int32;
+ }
+
+ /* First acquire information with a dialog */
+ if (! compose_dialog (composevals.compose_type, drawable_ID))
+ return;
+
+ break;
+
+ case GIMP_RUN_NONINTERACTIVE:
+ /* Make sure all the arguments are there! */
+ if (nparams < 7)
+ {
+ status = GIMP_PDB_CALLING_ERROR;
+ }
+ else
+ {
+ composevals.inputs[0].comp.ID = (compose_by_drawable ?
+ param[2].data.d_int32 :
+ param[1].data.d_int32);
+ composevals.inputs[1].comp.ID = param[3].data.d_int32;
+ composevals.inputs[2].comp.ID = param[4].data.d_int32;
+ composevals.inputs[3].comp.ID = param[5].data.d_int32;
+
+ strncpy (composevals.compose_type, param[6].data.d_string,
+ sizeof (composevals.compose_type));
+ composevals.compose_type[sizeof (composevals.compose_type)-1] = '\0';
+
+ for (i = 0; i < MAX_COMPOSE_IMAGES; i++)
+ {
+ if (composevals.inputs[i].comp.ID == -1)
+ {
+ composevals.inputs[i].is_ID = FALSE;
+ composevals.inputs[i].comp.val = 0;
+ }
+ else
+ {
+ composevals.inputs[i].is_ID = TRUE;
+ }
+ }
+ }
+ break;
+
+ case GIMP_RUN_WITH_LAST_VALS:
+ /* Possibly retrieve data */
+ gimp_get_data (name, &composevals);
+
+ compose_by_drawable = TRUE;
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ if (status == GIMP_PDB_SUCCESS)
+ {
+ gimp_progress_init (_("Composing"));
+
+ image_ID = compose (composevals.compose_type,
+ composevals.inputs,
+ compose_by_drawable);
+
+ if (image_ID < 0)
+ {
+ status = GIMP_PDB_EXECUTION_ERROR;
+ }
+ else
+ {
+ values[1].data.d_int32 = image_ID;
+
+ if (composevals.do_recompose)
+ {
+ gimp_displays_flush ();
+ }
+ else
+ {
+ gimp_image_undo_enable (image_ID);
+ gimp_image_clean_all (image_ID);
+
+ if (run_mode != GIMP_RUN_NONINTERACTIVE)
+ gimp_display_new (image_ID);
+ }
+ }
+
+ /* Store data */
+ if (run_mode == GIMP_RUN_INTERACTIVE)
+ gimp_set_data (name, &composevals, sizeof (ComposeVals));
+ }
+
+ *nreturn_vals = composevals.do_recompose ? 1 : 2;
+
+ values[0].data.d_status = status;
+}
+
+static void
+cpn_affine_transform (GeglBuffer *buffer,
+ gdouble min,
+ gdouble max)
+{
+ GeglBufferIterator *gi;
+ const gdouble scale = max - min;
+ const gdouble offset = min;
+
+ /* We want to scale values linearly, regardless of the format of the buffer */
+ gegl_buffer_set_format (buffer, babl_format ("Y double"));
+
+ gi = gegl_buffer_iterator_new (buffer, NULL, 0, NULL,
+ GEGL_ACCESS_READWRITE, GEGL_ABYSS_NONE, 1);
+
+ while (gegl_buffer_iterator_next (gi))
+ {
+ gdouble *data = gi->items[0].data;
+ guint k;
+
+ for (k = 0; k < gi->length; k++)
+ {
+ data[k] = data[k] * scale + offset;
+ }
+ }
+}
+
+static void
+fill_buffer_from_components (GeglBuffer *temp[MAX_COMPOSE_IMAGES],
+ GeglBuffer *dst,
+ gint num_cpn,
+ ComposeInput *inputs,
+ gdouble mask_vals[MAX_COMPOSE_IMAGES])
+{
+ GeglBufferIterator *gi;
+ gint j;
+
+ gi = gegl_buffer_iterator_new (dst, NULL, 0, NULL,
+ GEGL_ACCESS_WRITE, GEGL_ABYSS_NONE, 10);
+
+ for (j = 0; j < num_cpn; j++)
+ {
+ if (inputs[j].is_ID)
+ gegl_buffer_iterator_add (gi, temp[j], NULL, 0, NULL,
+ GEGL_ACCESS_READ, GEGL_ABYSS_NONE);
+ }
+
+ while (gegl_buffer_iterator_next (gi))
+ {
+ gdouble *src_data[MAX_COMPOSE_IMAGES];
+ gdouble *dst_data = (gdouble*) gi->items[0].data;
+ gulong k, count;
+
+ count = 1;
+ for (j = 0; j < num_cpn; j++)
+ if (inputs[j].is_ID)
+ src_data[j] = (gdouble*) gi->items[count++].data;
+
+ for (k = 0; k < gi->length; k++)
+ {
+ gulong pos = k * num_cpn;
+
+ for (j = 0; j < num_cpn; j++)
+ {
+ if (inputs[j].is_ID)
+ dst_data[pos+j] = src_data[j][k];
+ else
+ dst_data[pos+j] = mask_vals[j];
+ }
+ }
+ }
+}
+
+static void
+perform_composition (COMPOSE_DSC curr_compose_dsc,
+ GeglBuffer *buffer_src[MAX_COMPOSE_IMAGES],
+ GeglBuffer *buffer_dst,
+ ComposeInput *inputs,
+ gint num_images)
+{
+ const Babl *dst_format;
+ GeglBuffer *temp[MAX_COMPOSE_IMAGES];
+ GeglBuffer *dst_temp;
+ const GeglRectangle *extent = NULL;
+
+ const COMPONENT_DSC *components;
+ gdouble mask_vals[MAX_COMPOSE_IMAGES];
+ gint i;
+
+ components = curr_compose_dsc.components;
+
+ /* Get all individual components in gray buffers */
+ for (i = 0; i < num_images; i++)
+ {
+ COMPONENT_DSC cpn_dsc = components[i];
+ const Babl *gray_format;
+
+ if (cpn_dsc.is_perceptual)
+ gray_format = babl_format ("Y' double");
+ else
+ gray_format = babl_format ("Y double");
+
+ if (! inputs[i].is_ID)
+ {
+ const Babl *fish = babl_fish (babl_format ("Y' u8"), gray_format);
+
+ babl_process (fish, &inputs[i].comp.val, &mask_vals[i], 1);
+
+ mask_vals[i] = mask_vals[i] * (cpn_dsc.range_max - cpn_dsc.range_min) + cpn_dsc.range_min;
+ }
+ else
+ {
+ extent = gegl_buffer_get_extent (buffer_src[i]);
+
+ temp[i] = gegl_buffer_new (extent, gray_format);
+
+ gegl_buffer_copy (buffer_src[i], NULL, GEGL_ABYSS_NONE, temp[i], NULL);
+
+ if (cpn_dsc.range_min != 0.0 || cpn_dsc.range_max != 1.0)
+ cpn_affine_transform (temp[i], cpn_dsc.range_min, cpn_dsc.range_max);
+ }
+
+ gimp_progress_update ((gdouble) i / (gdouble) (num_images + 1.0));
+ }
+
+ dst_format = babl_format_new (babl_model (curr_compose_dsc.babl_model),
+ babl_type ("double"),
+ babl_component (components[0].babl_name),
+ num_images > 1 ? babl_component (components[1].babl_name) : NULL,
+ num_images > 2 ? babl_component (components[2].babl_name) : NULL,
+ num_images > 3 ? babl_component (components[3].babl_name) : NULL,
+ NULL);
+
+ /* extent is not NULL because there is at least one drawable */
+ dst_temp = gegl_buffer_new (extent, dst_format);
+
+ /* Gather all individual components in the dst_format buffer */
+ fill_buffer_from_components (temp, dst_temp, num_images, inputs, mask_vals);
+
+ gimp_progress_update ((gdouble) num_images / (gdouble) (num_images + 1.0));
+
+ /* Copy back to the format GIMP wants (and perform the conversion in itself) */
+ gegl_buffer_copy (dst_temp, NULL, GEGL_ABYSS_NONE, buffer_dst, NULL);
+
+ for (i = 0; i< num_images; i++)
+ if( inputs[i].is_ID)
+ g_object_unref (temp[i]);
+
+ g_object_unref (dst_temp);
+}
+
+/* Compose an image from several gray-images */
+static gint32
+compose (const gchar *compose_type,
+ ComposeInput *inputs,
+ gboolean compose_by_drawable)
+{
+ gint width, height;
+ gint num_images, compose_idx;
+ gint i, j;
+ gint num_layers;
+ gint32 layer_ID_dst, image_ID_dst;
+ gint first_ID;
+ GimpImageType gdtype_dst;
+ GeglBuffer *buffer_src[MAX_COMPOSE_IMAGES];
+ GeglBuffer *buffer_dst;
+ GimpPrecision precision;
+
+ /* Search type of composing */
+ compose_idx = -1;
+ for (j = 0; j < G_N_ELEMENTS (compose_dsc); j++)
+ {
+ if (g_ascii_strcasecmp (compose_type, compose_dsc[j].compose_type) == 0)
+ {
+ compose_idx = j;
+ break;
+ }
+ }
+
+ if (compose_idx < 0)
+ return -1;
+
+ num_images = compose_dsc[compose_idx].num_images;
+
+ /* Check that at least one image or one drawable is provided */
+ first_ID = -1;
+ for (i = 0; i < num_images; i++)
+ {
+ if (inputs[i].is_ID)
+ {
+ first_ID = i;
+ break;
+ }
+ }
+
+ if (-1 == first_ID)
+ {
+ g_message (_("At least one image is needed to compose"));
+ return -1;
+ }
+
+ /* Check image sizes */
+ if (compose_by_drawable)
+ {
+ gint32 first_image = gimp_item_get_image (inputs[first_ID].comp.ID);
+
+ if (! gimp_item_is_valid (inputs[first_ID].comp.ID))
+ {
+ g_message (_("Specified layer %d not found"),
+ inputs[first_ID].comp.ID);
+ return -1;
+ }
+
+ width = gimp_drawable_width (inputs[first_ID].comp.ID);
+ height = gimp_drawable_height (inputs[first_ID].comp.ID);
+
+ precision = gimp_image_get_precision (first_image);
+
+ for (j = first_ID + 1; j < num_images; j++)
+ {
+ if (inputs[j].is_ID)
+ {
+ if (! gimp_item_is_valid (inputs[j].comp.ID))
+ {
+ g_message (_("Specified layer %d not found"),
+ inputs[j].comp.ID);
+ return -1;
+ }
+
+ if ((width != gimp_drawable_width (inputs[j].comp.ID)) ||
+ (height != gimp_drawable_height (inputs[j].comp.ID)))
+ {
+ g_message (_("Drawables have different size"));
+ return -1;
+ }
+ }
+ }
+
+ for (j = 0; j < num_images; j++)
+ {
+ if (inputs[j].is_ID)
+ buffer_src[j] = gimp_drawable_get_buffer (inputs[j].comp.ID);
+ else
+ buffer_src[j] = NULL;
+ }
+ }
+ else /* Compose by image ID */
+ {
+ width = gimp_image_width (inputs[first_ID].comp.ID);
+ height = gimp_image_height (inputs[first_ID].comp.ID);
+
+ precision = gimp_image_get_precision (inputs[first_ID].comp.ID);
+
+ for (j = first_ID + 1; j < num_images; j++)
+ {
+ if (inputs[j].is_ID)
+ {
+ if ((width != gimp_image_width (inputs[j].comp.ID)) ||
+ (height != gimp_image_height (inputs[j].comp.ID)))
+ {
+ g_message (_("Images have different size"));
+ return -1;
+ }
+ }
+ }
+
+ /* Get first layer/drawable for all input images */
+ for (j = 0; j < num_images; j++)
+ {
+ if (inputs[j].is_ID)
+ {
+ gint32 *layers;
+
+ /* Get first layer of image */
+ layers = gimp_image_get_layers (inputs[j].comp.ID, &num_layers);
+
+ if (! layers || (num_layers <= 0))
+ {
+ g_message (_("Error in getting layer IDs"));
+ return -1;
+ }
+
+ /* Get drawable for layer */
+ buffer_src[j] = gimp_drawable_get_buffer (layers[0]);
+ g_free (layers);
+ }
+ }
+ }
+
+ /* Unless recomposing, create new image */
+ if (composevals.do_recompose)
+ {
+ layer_ID_dst = composevals.source_layer_ID;
+
+ if (! gimp_item_is_valid (layer_ID_dst))
+ {
+ g_message (_("Unable to recompose, source layer not found"));
+ return -1;
+ }
+
+ image_ID_dst = gimp_item_get_image (layer_ID_dst);
+
+ buffer_dst = gimp_drawable_get_shadow_buffer (layer_ID_dst);
+ }
+ else
+ {
+ gdtype_dst = ((babl_model (compose_dsc[compose_idx].babl_model) == babl_model ("RGBA")) ?
+ GIMP_RGBA_IMAGE : GIMP_RGB_IMAGE);
+
+ image_ID_dst = create_new_image (compose_dsc[compose_idx].filename,
+ width, height, gdtype_dst, precision,
+ &layer_ID_dst, &buffer_dst);
+ }
+
+ if (! compose_by_drawable)
+ {
+ gdouble xres, yres;
+
+ gimp_image_get_resolution (inputs[first_ID].comp.ID, &xres, &yres);
+ gimp_image_set_resolution (image_ID_dst, xres, yres);
+ }
+
+ perform_composition (compose_dsc[compose_idx],
+ buffer_src,
+ buffer_dst,
+ inputs,
+ num_images);
+
+ gimp_progress_update (1.0);
+
+ for (j = 0; j < num_images; j++)
+ {
+ if (inputs[j].is_ID)
+ g_object_unref (buffer_src[j]);
+ }
+
+ g_object_unref (buffer_dst);
+
+ if (composevals.do_recompose)
+ gimp_drawable_merge_shadow (layer_ID_dst, TRUE);
+
+ gimp_drawable_update (layer_ID_dst, 0, 0,
+ gimp_drawable_width (layer_ID_dst),
+ gimp_drawable_height (layer_ID_dst));
+
+ return image_ID_dst;
+}
+
+
+/* Create an image. Sets layer_ID, drawable and rgn. Returns image_ID */
+static gint32
+create_new_image (const gchar *filename,
+ guint width,
+ guint height,
+ GimpImageType gdtype,
+ GimpPrecision precision,
+ gint32 *layer_ID,
+ GeglBuffer **buffer)
+{
+ gint32 image_ID;
+ GimpImageBaseType gitype;
+
+ if ((gdtype == GIMP_GRAY_IMAGE) || (gdtype == GIMP_GRAYA_IMAGE))
+ gitype = GIMP_GRAY;
+ else if ((gdtype == GIMP_INDEXED_IMAGE) || (gdtype == GIMP_INDEXEDA_IMAGE))
+ gitype = GIMP_INDEXED;
+ else
+ gitype = GIMP_RGB;
+
+ image_ID = gimp_image_new_with_precision (width, height, gitype, precision);
+
+ gimp_image_undo_disable (image_ID);
+ gimp_image_set_filename (image_ID, filename);
+
+ *layer_ID = gimp_layer_new (image_ID, _("Background"), width, height,
+ gdtype,
+ 100,
+ gimp_image_get_default_new_layer_mode (image_ID));
+ gimp_image_insert_layer (image_ID, *layer_ID, -1, 0);
+
+ *buffer = gimp_drawable_get_buffer (*layer_ID);
+
+ return image_ID;
+}
+
+
+static gboolean
+compose_dialog (const gchar *compose_type,
+ gint32 drawable_ID)
+{
+ GtkWidget *dialog;
+ GtkWidget *main_vbox;
+ GtkWidget *frame;
+ GtkWidget *vbox;
+ GtkWidget *hbox;
+ GtkWidget *label;
+ GtkWidget *combo;
+ GtkWidget *table;
+ GtkSizeGroup *size_group;
+ gint32 *layer_list;
+ gint nlayers;
+ gint j;
+ gboolean run;
+
+ /* Check default compose type */
+ composeint.compose_idx = 0;
+ for (j = 0; j < G_N_ELEMENTS (compose_dsc); j++)
+ {
+ if (g_ascii_strcasecmp (compose_type, compose_dsc[j].compose_type) == 0)
+ {
+ composeint.compose_idx = j;
+ break;
+ }
+ }
+
+ /* Save original image width/height */
+ composeint.width = gimp_drawable_width (drawable_ID);
+ composeint.height = gimp_drawable_height (drawable_ID);
+
+ gimp_ui_init (PLUG_IN_BINARY, TRUE);
+
+ layer_list = gimp_image_get_layers (gimp_item_get_image (drawable_ID),
+ &nlayers);
+
+ dialog = gimp_dialog_new (_("Compose"), PLUG_IN_ROLE,
+ NULL, 0,
+ gimp_standard_help_func, COMPOSE_PROC,
+
+ _("_Cancel"), GTK_RESPONSE_CANCEL,
+ _("_OK"), GTK_RESPONSE_OK,
+
+ NULL);
+
+ gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
+ GTK_RESPONSE_OK,
+ GTK_RESPONSE_CANCEL,
+ -1);
+
+ g_signal_connect (dialog, "response",
+ G_CALLBACK (check_response),
+ NULL);
+
+ gimp_window_set_transient (GTK_WINDOW (dialog));
+
+ main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
+ gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
+ gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
+ main_vbox, TRUE, TRUE, 0);
+ gtk_widget_show (main_vbox);
+
+ /* Compose type combo */
+
+ frame = gimp_frame_new (_("Compose Channels"));
+ gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
+ gtk_widget_show (frame);
+
+ hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
+ gtk_container_add (GTK_CONTAINER (frame), hbox);
+ gtk_widget_show (hbox);
+
+ size_group = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
+
+ label = gtk_label_new_with_mnemonic (_("Color _model:"));
+ gtk_label_set_xalign (GTK_LABEL (label), 0.0);
+ gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
+ gtk_widget_show (label);
+
+ gtk_size_group_add_widget (size_group, label);
+ g_object_unref (size_group);
+
+ combo = g_object_new (GIMP_TYPE_INT_COMBO_BOX, NULL);
+ for (j = 0; j < G_N_ELEMENTS (compose_dsc); j++)
+ {
+ gchar *label = g_strdup (gettext (compose_dsc[j].compose_type));
+ gchar *l;
+
+ for (l = label; *l; l++)
+ if (*l == '-' || *l == '_')
+ *l = ' ';
+
+ gimp_int_combo_box_append (GIMP_INT_COMBO_BOX (combo),
+ GIMP_INT_STORE_LABEL, label,
+ GIMP_INT_STORE_VALUE, j,
+ -1);
+ g_free (label);
+ }
+
+ gtk_box_pack_start (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
+ gtk_widget_show (combo);
+
+ gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
+
+ /* Channel representation table */
+
+ frame = gimp_frame_new (_("Channel Representations"));
+ gtk_box_pack_start (GTK_BOX (main_vbox), frame, TRUE, TRUE, 0);
+ gtk_widget_show (frame);
+
+ vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
+ gtk_container_add (GTK_CONTAINER (frame), vbox);
+ gtk_widget_show (vbox);
+
+ table = gtk_table_new (MAX_COMPOSE_IMAGES, 4, FALSE);
+ gtk_table_set_row_spacings (GTK_TABLE (table), 6);
+ gtk_table_set_col_spacings (GTK_TABLE (table), 6);
+ gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
+ gtk_widget_show (table);
+
+ for (j = 0; j < MAX_COMPOSE_IMAGES; j++)
+ {
+ GtkWidget *image;
+ GtkWidget *label;
+ GtkWidget *combo;
+ GtkObject *scale;
+ GtkTreeIter iter;
+ GtkTreeModel *model;
+ GdkPixbuf *ico;
+
+ hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
+ gtk_table_attach (GTK_TABLE (table), hbox, 0, 1, j, j + 1,
+ GTK_FILL, GTK_FILL, 0, 0);
+ gtk_widget_show (hbox);
+
+ gtk_size_group_add_widget (size_group, hbox);
+
+ composeint.channel_icon[j] = image = gtk_image_new ();
+ gtk_box_pack_start (GTK_BOX (hbox), image, FALSE, FALSE, 0);
+ gtk_widget_show (image);
+
+ composeint.channel_label[j] = label = gtk_label_new_with_mnemonic ("");
+ gtk_label_set_xalign (GTK_LABEL (label), 0.0);
+ gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
+ gtk_widget_show (label);
+
+ if (composeint.compose_idx >= 0 &&
+ nlayers >= compose_dsc[composeint.compose_idx].num_images &&
+ j < nlayers)
+ {
+ composeint.selected[j].comp.ID = layer_list[j];
+ }
+ else
+ {
+ composeint.selected[j].comp.ID = drawable_ID;
+ }
+
+ composeint.selected[j].is_ID = TRUE;
+
+ combo = gimp_drawable_combo_box_new (check_gray, NULL);
+ composeint.channel_menu[j] = combo;
+
+ ico = gtk_widget_render_icon (dialog,
+ GIMP_ICON_CHANNEL_GRAY,
+ GTK_ICON_SIZE_BUTTON, NULL);
+ model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo));
+ gtk_list_store_append (GTK_LIST_STORE (model), &iter);
+ gtk_list_store_set (GTK_LIST_STORE (model), &iter,
+ GIMP_INT_STORE_VALUE, -1,
+ GIMP_INT_STORE_LABEL, _("Mask value"),
+ GIMP_INT_STORE_PIXBUF, ico,
+ -1);
+ g_object_unref (ico);
+ gtk_table_attach (GTK_TABLE (table), combo, 1, 2, j, j + 1,
+ GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
+ gtk_widget_show (combo);
+
+ gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
+
+ scale = gimp_color_scale_entry_new (GTK_TABLE (table), 2, j, NULL,
+ 100, 4,
+ 255.0, 0.0, 255.0, 1.0, 10.0, 0,
+ NULL, NULL);
+ composeint.color_scales[j] = GIMP_SCALE_ENTRY_SCALE (scale);
+ composeint.color_spins[j] = GIMP_SCALE_ENTRY_SPINBUTTON (scale);
+
+ gtk_widget_set_sensitive (composeint.color_scales[j], FALSE);
+ gtk_widget_set_sensitive (composeint.color_spins[j], FALSE);
+
+ g_signal_connect (scale, "value-changed",
+ G_CALLBACK (scale_callback),
+ &composeint.selected[j]);
+
+ /* This has to be connected last otherwise it will emit before
+ * combo_callback has any scale and spinbutton to work with
+ */
+ gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo),
+ composeint.selected[j].comp.ID,
+ G_CALLBACK (combo_callback),
+ GINT_TO_POINTER (j));
+ }
+
+ g_free (layer_list);
+
+ /* Calls the combo callback and sets icons, labels and sensitivity */
+ gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo),
+ composeint.compose_idx,
+ G_CALLBACK (type_combo_callback),
+ NULL);
+
+ gtk_widget_show (dialog);
+
+ run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
+
+ gtk_widget_destroy (dialog);
+
+ if (run)
+ {
+ gint j;
+
+ for (j = 0; j < MAX_COMPOSE_IMAGES; j++)
+ {
+ composevals.inputs[j].is_ID = composeint.selected[j].is_ID;
+
+ if (composevals.inputs[j].is_ID)
+ composevals.inputs[j].comp.ID = composeint.selected[j].comp.ID;
+ else
+ composevals.inputs[j].comp.val = composeint.selected[j].comp.val;
+ }
+
+ strcpy (composevals.compose_type,
+ compose_dsc[composeint.compose_idx].compose_type);
+ }
+
+ return run;
+}
+
+/* Compose interface functions */
+
+static gboolean
+check_gray (gint32 image_id,
+ gint32 drawable_id,
+ gpointer data)
+
+{
+ return ((gimp_image_base_type (image_id) == GIMP_GRAY) &&
+ (gimp_image_width (image_id) == composeint.width) &&
+ (gimp_image_height (image_id) == composeint.height));
+}
+
+static void
+check_response (GtkWidget *dialog,
+ gint response,
+ gpointer data)
+{
+ switch (response)
+ {
+ case GTK_RESPONSE_OK:
+ {
+ gint i;
+ gint nb = 0;
+ gboolean has_image = FALSE;
+
+ nb = compose_dsc[composeint.compose_idx].num_images;
+
+ for (i = 0; i < nb; i++)
+ {
+ if (composeint.selected[i].is_ID)
+ {
+ has_image = TRUE;
+ break;
+ }
+ }
+
+ if (! has_image)
+ {
+ GtkWidget *d;
+
+ g_signal_stop_emission_by_name (dialog, "response");
+ d = gtk_message_dialog_new (GTK_WINDOW (dialog),
+ GTK_DIALOG_DESTROY_WITH_PARENT |
+ GTK_DIALOG_MODAL,
+ GTK_MESSAGE_ERROR,
+ GTK_BUTTONS_CLOSE,
+ _("At least one image is needed to compose"));
+
+ gtk_dialog_run (GTK_DIALOG (d));
+ gtk_widget_destroy (d);
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+static void
+combo_callback (GimpIntComboBox *widget,
+ gpointer data)
+{
+ gint id;
+ gint n;
+
+ gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (widget), &id);
+ n = GPOINTER_TO_INT (data);
+
+ if (id == -1)
+ {
+ gtk_widget_set_sensitive (composeint.color_scales[n], TRUE);
+ gtk_widget_set_sensitive (composeint.color_spins[n], TRUE);
+
+ composeint.selected[n].is_ID = FALSE;
+ composeint.selected[n].comp.val =
+ gtk_range_get_value (GTK_RANGE (composeint.color_scales[n]));
+ }
+ else
+ {
+ gtk_widget_set_sensitive (composeint.color_scales[n], FALSE);
+ gtk_widget_set_sensitive (composeint.color_spins[n], FALSE);
+
+ composeint.selected[n].is_ID = TRUE;
+ composeint.selected[n].comp.ID = id;
+ }
+}
+
+static void
+scale_callback (GtkAdjustment *adj,
+ ComposeInput *input)
+{
+ input->comp.val = gtk_adjustment_get_value (adj);
+}
+
+static void
+type_combo_callback (GimpIntComboBox *combo,
+ gpointer data)
+{
+ if (gimp_int_combo_box_get_active (combo, &composeint.compose_idx))
+ {
+ gboolean combo4;
+ gboolean scale4;
+ gint compose_idx;
+ gint j;
+
+ compose_idx = composeint.compose_idx;
+
+ for (j = 0; j < MAX_COMPOSE_IMAGES; j++)
+ {
+ GtkWidget *label = composeint.channel_label[j];
+ GtkWidget *image = composeint.channel_icon[j];
+ const gchar *text = compose_dsc[compose_idx].components[j].name;
+ const gchar *icon = compose_dsc[compose_idx].components[j].icon;
+
+ gtk_label_set_text_with_mnemonic (GTK_LABEL (label),
+ text ? gettext (text) : "");
+
+ if (icon)
+ {
+ gtk_image_set_from_icon_name (GTK_IMAGE (image),
+ icon, GTK_ICON_SIZE_BUTTON);
+ gtk_widget_show (image);
+ }
+ else
+ {
+ gtk_image_clear (GTK_IMAGE (image));
+ gtk_widget_hide (image);
+ }
+ }
+
+ /* Set sensitivity of last menu */
+ combo4 = (compose_dsc[compose_idx].num_images == 4);
+ gtk_widget_set_sensitive (composeint.channel_menu[3], combo4);
+
+ scale4 = combo4 && !composeint.selected[3].is_ID;
+ gtk_widget_set_sensitive (composeint.color_scales[3], scale4);
+ gtk_widget_set_sensitive (composeint.color_spins[3], scale4);
+ }
+}