Added the rcm plugin.

--Sven

ChangeLog

+Mon Apr  5 22:28:01 MEST 1999 Sven Neumann <sven@gimp.org>
+
+	* configure.in
+	* plug-ins/Makefile.am
+	* plug-ins/rcm: Added RotateColorMap plug-in. This is a rewrite
+	of the original plug-in by Pavel Grinfeld done by Sven Anders
+	(anderss@fmi.uni-passau.de)
+
 1999-04-05  Michael Natterer  <mitschel@cs.tu-berlin.de>
 
 	* app/action_area.h: #include <gtk/gtk.h>.

configure.in

@@ -783,6 +783,7 @@ plug-ins/print/Makefile
 plug-ins/ps/Makefile
 plug-ins/psd/Makefile
 plug-ins/randomize/Makefile
+plug-ins/rcm/Makefile
 plug-ins/ripple/Makefile
 plug-ins/rotate/Makefile
 plug-ins/rotators/Makefile

plug-ins/Makefile.am

@@ -111,6 +111,7 @@ SUBDIRS = 			\
 	ps			\
 	psd			\
 	randomize		\
+	rcm			\
 	ripple			\
 	rotate			\
 	rotators		\

plug-ins/rcm/.cvsignore

+Makefile.in
+Makefile
+.deps
+_libs
+.libs
+rcm

plug-ins/rcm/Makefile.am

+## Process this file with automake to produce Makefile.in
+
+pluginlibdir = $(gimpplugindir)/plug-ins
+
+pluginlib_PROGRAMS = rcm
+
+rcm_SOURCES = \
+	rcm.c		\
+	rcm_dialog.c	\
+	rcm_callback.c	\
+	rcm_gdk.c	\
+	rcm_misc.c
+
+INCLUDES = \
+	-I$(top_srcdir)			\
+	$(GTK_CFLAGS)			\
+	-I$(includedir)
+
+LDADD = \
+	$(top_builddir)/libgimp/libgimp.la	\
+	$(GTK_LIBS)
+
+DEPS = \
+	$(top_builddir)/libgimp/libgimp.la	
+
+rcm_DEPENDENCIES = $(DEPS)
+
+.PHONY: files
+
+files:
+	@files=`ls $(DISTFILES) 2> /dev/null`; for p in $$files; do \
+	  echo $$p; \
+	done
+	@for subdir in $(SUBDIRS); do \
+	  files=`cd $$subdir; $(MAKE) files | grep -v "make\[[1-9]\]"`; \
+	  for file in $$files; do \
+	    echo $$subdir/$$file; \
+	  done; \
+	done

plug-ins/rcm/rcm.c

+/*
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * This is a plug-in for the GIMP.
+ *
+ * Colormap-Rotation plug-in. Exchanges two color ranges.
+ *
+ * Copyright (C) 1999 Sven Anders (anderss@fmi.uni-passau.de)
+ *                    Based on code from Pavel Grinfeld (pavel@ml.com)
+ *
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*-----------------------------------------------------------------------------------
+ * Change log:
+ * 
+ * Version 2.0, 04 April 1999.
+ *  Nearly complete rewrite, made plug-in stable.
+ *  (Works with GIMP 1.1 and GTK+ 1.2)
+ *
+ * Version 1.0, 27 March 1997.
+ *  Initial (unstable) release by Pavel Grinfeld
+ *
+ *-----------------------------------------------------------------------------------*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+#include <gtk/gtk.h>
+#include <libgimp/gimp.h>
+#include <libgimp/gimpintl.h>
+
+#include "rcm.h"
+#include "rcm_misc.h"
+#include "rcm_dialog.h"
+#include "rcm_callback.h"
+
+/*-----------------------------------------------------------------------------------*/
+/* Forward declarations */
+/*-----------------------------------------------------------------------------------*/
+
+void query(void);
+void run(char *name, int nparams, GParam *param, int *nreturn_vals, GParam **return_vals);
+
+/*-----------------------------------------------------------------------------------*/
+/* Global variables */
+/*-----------------------------------------------------------------------------------*/
+
+RcmParams Current =
+{
+  SELECTION,           /* SELECTION ONLY */
+  TRUE,                /* REAL TIME */
+  FALSE,               /* SUCCESS */
+  RADIANS_OVER_PI,     /* START IN RADIANS OVER PI */
+  GRAY_TO
+};
+
+/*-----------------------------------------------------------------------------------*/
+/* Local variables */
+/*-----------------------------------------------------------------------------------*/
+
+GPlugInInfo PLUG_IN_INFO =
+{
+  NULL,    /* init_proc */
+  NULL,    /* quit_proc */
+  query,   /* query_proc */
+  run,     /* run_proc */
+};
+
+/*-----------------------------------------------------------------------------------*/
+/* Dummy function */
+/*-----------------------------------------------------------------------------------*/
+
+MAIN();
+
+/*-----------------------------------------------------------------------------------*/
+/* Query plug-in */
+/*-----------------------------------------------------------------------------------*/
+
+void query(void)
+{
+  GParamDef args[] =
+  {
+    { PARAM_INT32, "run_mode", "Interactive, non-interactive" },
+    { PARAM_IMAGE, "image", "Input image (used for indexed images)" },
+    { PARAM_DRAWABLE, "drawable", "Input drawable" },
+  };
+
+  GParamDef *return_vals = NULL;
+  int nargs = sizeof (args) / sizeof (args[0]);
+  int nreturn_vals = 0;
+
+  gimp_install_procedure ("Colormap rotation plug-in",
+			  "Colormap rotation as in xv",
+			  "Exchanges two color ranges. "\
+			  "Based on code from Pavel Grinfeld (pavel@ml.com). "\
+			  "This version written by Sven Anders (anderss@fmi.uni-passau.de).",
+			  "Sven Anders (anderss@fmi.uni-passau.de) and Pavel Grinfeld (pavel@ml.com)",
+			  "Sven Anders (anderss@fmi.uni-passau.de)",
+			  "04th April 1999",
+			  "<Image>/Filters/Darkroom/Colormap Rotation",
+			  "RGB*",
+			  PROC_PLUG_IN,
+			  nargs, nreturn_vals,
+			  args, return_vals);
+}
+
+/*-----------------------------------------------------------------------------------*/
+/* Rotate colormap of a single row */
+/*-----------------------------------------------------------------------------------*/
+
+void rcm_row(const guchar *src_row, guchar *dest_row,
+	     gint row, gint row_width, gint bytes)
+{
+  gint col, bytenum, skip;
+  hsv H,S,V,R,G,B;
+  
+  for (col=0; col < row_width; col++)
+  {
+    skip = 0;
+      
+    R = (float)src_row[col*bytes + 0]/255.0;
+    G = (float)src_row[col*bytes + 1]/255.0;
+    B = (float)src_row[col*bytes + 2]/255.0;
+      
+    rgb_to_hsv(R,G,B, &H,&S,&V);
+      
+    if (rcm_is_gray(S))
+    {
+      if (Current.Gray_to_from == GRAY_FROM)
+      {
+	if (rcm_angle_inside_slice(Current.Gray->hue,Current.From->angle) <= 1)
+	{
+	  H = Current.Gray->hue / TP;
+	  S = Current.Gray->satur;
+	}
+	else 
+	{
+	  skip = 1;
+	}
+      }
+      else
+      {
+	skip = 1;
+	hsv_to_rgb(Current.Gray->hue/TP, Current.Gray->satur, V, &R, &G, &B);
+      }
+    }
+      
+    if (!skip)
+    {
+      H = rcm_linear(rcm_left_end(Current.From->angle),
+		     rcm_right_end(Current.From->angle),
+		     rcm_left_end(Current.To->angle),
+		     rcm_right_end(Current.To->angle),
+		     H*TP);    
+
+      H = angle_mod_2PI(H) / TP;
+      hsv_to_rgb(H,S,V, &R,&G,&B);
+    }
+      
+    dest_row[col*bytes +0] = R * 255;
+    dest_row[col*bytes +1] = G * 255;
+    dest_row[col*bytes +2] = B * 255;
+      
+    if (bytes > 3)
+    {
+      for (bytenum=3; bytenum<bytes; bytenum++)
+	dest_row[col*bytes+bytenum] = src_row[col*bytes+bytenum];
+    }
+  }
+}
+
+/*-----------------------------------------------------------------------------------*/
+/* Rotate colormap row by row ... */
+/*-----------------------------------------------------------------------------------*/
+
+void rcm(GDrawable *drawable)
+{
+  GPixelRgn srcPR, destPR;
+  gint width, height;
+  gint bytes;
+  guchar *src_row, *dest_row;
+  gint row;
+  gint x1, y1, x2, y2;
+  
+  gimp_drawable_mask_bounds (drawable->id, &x1, &y1, &x2, &y2);
+
+  width = drawable->width;
+  height = drawable->height;
+  bytes = drawable->bpp;
+
+  src_row = (guchar *) malloc ((x2 - x1) * bytes);
+  dest_row = (guchar *) malloc ((x2 - x1) * bytes);
+
+  gimp_pixel_rgn_init(&srcPR, drawable, 0, 0, width, height, FALSE, FALSE);
+  gimp_pixel_rgn_init(&destPR, drawable, 0, 0, width, height, TRUE, TRUE);
+
+  for (row=y1; row < y2; row++)
+  {
+    gimp_pixel_rgn_get_row(&srcPR, src_row, x1, row, (x2 - x1));
+
+    rcm_row(src_row, dest_row, row, (x2 - x1), bytes);
+      
+    gimp_pixel_rgn_set_row(&destPR, dest_row, x1, row, (x2 - x1));
+      
+    if ((row % 10) == 0)
+      gimp_progress_update((double) row / (double) (y2 - y1));
+  }
+
+  /*  update the processed region  */
+
+  gimp_drawable_flush(drawable);
+  gimp_drawable_merge_shadow(drawable->id, TRUE);
+  gimp_drawable_update(drawable->id, x1, y1, (x2 - x1), (y2 - y1));
+  
+  free (src_row);
+  free (dest_row);
+}
+
+/*-----------------------------------------------------------------------------------*/
+/* STANDARD RUN */
+/*-----------------------------------------------------------------------------------*/
+
+void run(char *name, int nparams, GParam *param, int *nreturn_vals, GParam **return_vals)
+{
+  GParam values[1];
+  GStatusType status = STATUS_SUCCESS;
+  
+  *nreturn_vals = 1;
+  *return_vals = values;
+
+  values[0].type = PARAM_STATUS;
+  values[0].data.d_status = status;
+
+  Current.drawable = gimp_drawable_get(param[2].data.d_drawable);
+  Current.mask = gimp_drawable_get(gimp_image_get_selection(param[1].data.d_image));
+
+  /* works not on INDEXED images */     
+
+  if (gimp_drawable_indexed (Current.drawable->id) ||
+      gimp_drawable_gray (Current.drawable->id) )
+  {
+    status = STATUS_EXECUTION_ERROR;
+  }
+  else
+  {
+    /* call dialog and rotate the colormap */
+
+    if (gimp_drawable_color(Current.drawable->id) && rcm_dialog())
+    {
+      gimp_progress_init(_("Rotating the colormap..."));
+
+      gimp_tile_cache_ntiles(2 * (Current.drawable->width / gimp_tile_width() + 1));
+      rcm(Current.drawable);
+      gimp_displays_flush();
+    }
+    else
+      status = STATUS_EXECUTION_ERROR;
+  }
+  
+  values[0].data.d_status = status;
+  if (status == STATUS_SUCCESS)
+    gimp_drawable_detach(Current.drawable);
+}

plug-ins/rcm/rcm.h

+/*
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * This is a plug-in for the GIMP.
+ *
+ * Colormap-Rotation plug-in. Exchanges two color ranges.
+ *
+ * Copyright (C) 1999 Sven Anders (anderss@fmi.uni-passau.de)
+ *                    Based on code from Pavel Grinfeld (pavel@ml.com)
+ *
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*-----------------------------------------------------------------------------------
+ * Change log:
+ * 
+ * Version 2.0, 04 April 1999.
+ *  Nearly complete rewrite, made plug-in stable.
+ *  (Works with GIMP 1.1 and GTK+ 1.2)
+ *
+ * Version 1.0, 27 March 1997.
+ *  Initial (unstable) release by Pavel Grinfeld
+ *
+ *-----------------------------------------------------------------------------------*/
+
+/*-----------------------------------------------------------------------------------*/
+/* Global defines */
+/*-----------------------------------------------------------------------------------*/
+
+#ifndef PI
+#define PI 3.14159265358979323846
+#endif
+
+#define TP (2*PI)
+
+/*-----------------------------------------------------------------------------------*/
+/* Typedefs */
+/*-----------------------------------------------------------------------------------*/
+
+enum { ENTIRE_IMAGE, SELECTION, SELECTION_IN_CONTEXT, PREVIEW_OPTIONS };
+
+enum { EACH, BOTH, DEGREES, RADIANS, RADIANS_OVER_PI, 
+       GRAY_FROM, GRAY_TO, CURRENT, ORIGINAL };
+
+typedef enum { VIRGIN, DRAG_START, DRAGING, DO_NOTHING } RcmOp;
+
+typedef double hsv;
+
+typedef struct
+{
+  float  alpha;
+  float  beta;
+  int    cw_ccw;
+} RcmAngle;
+
+typedef struct
+{
+  gint    width;
+  gint    height;
+  guchar  *rgb;
+  hsv     *hsv;
+  guchar  *mask;
+} ReducedImage;
+
+typedef struct
+{
+  GtkWidget  *preview;
+  GtkWidget  *frame;
+  GtkWidget  *table;
+  GtkWidget  *cw_ccw_button;
+  GtkWidget  *cw_ccw_box;
+  GtkWidget  *cw_ccw_label;
+  GtkWidget  *cw_ccw_pixmap;
+  GtkWidget  *a_b_button;
+  GtkWidget  *a_b_box;
+  GtkWidget  *a_b_pixmap;
+  GtkWidget  *f360_button;
+  GtkWidget  *f360_box;
+  GtkWidget  *f360_pixmap;
+  GtkWidget  *alpha_entry;
+  GtkWidget  *alpha_units_label;
+  GtkWidget  *beta_entry;
+  GtkWidget  *beta_units_label;
+  gfloat     *target;
+  gint       mode;
+  RcmAngle   *angle;
+  RcmOp      action_flag;
+  gfloat     prev_clicked;
+} RcmCircle;
+
+typedef struct
+{
+  GtkWidget  *dlg;
+  GtkWidget  *bna_frame;
+  GtkWidget  *before;
+  GtkWidget  *after;
+} RcmBna;
+
+typedef struct
+{
+  GtkWidget  *preview;
+  GtkWidget  *frame;
+  float      gray_sat;
+  float      hue;
+  float      satur;
+  GtkWidget  *gray_sat_entry;
+  GtkWidget  *hue_entry;
+  GtkWidget  *hue_units_label;
+  GtkWidget  *satur_entry;
+  RcmOp      action_flag;
+} RcmGray;
+
+typedef struct
+{
+  gint          Slctn;
+  gint          RealTime;
+  gint          Success;
+  gint          Units;
+  gint          Gray_to_from;
+  GDrawable     *drawable;
+  GDrawable     *mask;
+  ReducedImage  *reduced;
+  RcmCircle     *To;
+  RcmCircle     *From;
+  RcmGray       *Gray;
+  RcmBna        *Bna;
+} RcmParams;
+
+/*-----------------------------------------------------------------------------------*/
+/* Global variables */
+/*-----------------------------------------------------------------------------------*/
+
+extern RcmParams Current;
+
+/*-----------------------------------------------------------------------------------*/

plug-ins/rcm/rcm_callback.h

+/*
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * This is a plug-in for the GIMP.
+ *
+ * Colormap-Rotation plug-in. Exchanges two color ranges.
+ *
+ * Copyright (C) 1999 Sven Anders (anderss@fmi.uni-passau.de)
+ *                    Based on code from Pavel Grinfeld (pavel@ml.com)
+ *
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*-----------------------------------------------------------------------------------
+ * Change log:
+ * 
+ * Version 2.0, 04 April 1999.
+ *  Nearly complete rewrite, made plug-in stable.
+ *  (Works with GIMP 1.1 and GTK+ 1.2)
+ *
+ * Version 1.0, 27 March 1997.
+ *  Initial (unstable) release by Pavel Grinfeld
+ *
+ *-----------------------------------------------------------------------------------*/
+
+/*-----------------------------------------------------------------------------------*/
+/* Misc functions */
+/*-----------------------------------------------------------------------------------*/
+
+float rcm_units_factor(gint units);
+
+gchar *rcm_units_string(gint units);
+
+void rcm_set_pixmap(GtkWidget **widget, GtkWidget *parent, 
+		    GtkWidget *label_box, char **pixmap_data);
+
+/*-----------------------------------------------------------------------------------*/
+/* Ok/Cancel Buttons */
+/*-----------------------------------------------------------------------------------*/
+
+void rcm_close_callback(GtkWidget *widget, gpointer data);
+
+void rcm_ok_callback(GtkWidget *widget, gpointer data);
+
+/*-----------------------------------------------------------------------------------*/
+/* Circle buttons */
+/*-----------------------------------------------------------------------------------*/
+
+void rcm_360_degrees(GtkWidget *button, RcmCircle *circle);
+
+void rcm_cw_ccw(GtkWidget *button, RcmCircle *circle);
+
+void rcm_a_to_b(GtkWidget *button, RcmCircle *circle);
+
+/*-----------------------------------------------------------------------------------*/
+/* Misc: units buttons */
+/*-----------------------------------------------------------------------------------*/
+
+void rcm_switch_to_degrees(GtkWidget *button, gpointer *value);
+
+void rcm_switch_to_radians(GtkWidget *button, gpointer *value);
+
+void rcm_switch_to_radians_over_PI(GtkWidget *button, gpointer *value);
+
+/*-----------------------------------------------------------------------------------*/
+/* Misc: Gray: mode buttons */
+/*-----------------------------------------------------------------------------------*/
+
+void rcm_switch_to_gray_to(GtkWidget *button, gpointer *value);
+
+void rcm_switch_to_gray_from(GtkWidget *button, gpointer *value);
+
+/*-----------------------------------------------------------------------------------*/
+/* Misc: Preview buttons */
+/*-----------------------------------------------------------------------------------*/
+
+void rcm_preview_as_you_drag(GtkWidget *button, gpointer *value);
+
+void rcm_selection_in_context(GtkWidget *button, gpointer *value);
+
+void rcm_selection(GtkWidget *button, gpointer *value);
+
+void rcm_entire_image(GtkWidget *button, gpointer *value);
+
+/*-----------------------------------------------------------------------------------*/
+/* Circle events */
+/*-----------------------------------------------------------------------------------*/
+
+gint rcm_expose_event(GtkWidget *widget, GdkEvent *event, RcmCircle *circle);
+
+gint rcm_button_press_event(GtkWidget *widget, GdkEvent *event, RcmCircle *circle);
+
+gint rcm_release_event(GtkWidget *widget, GdkEvent *event, RcmCircle *circle);
+
+gint rcm_motion_notify_event(GtkWidget *widget, GdkEvent *event, RcmCircle *circle);
+
+/*-----------------------------------------------------------------------------------*/
+/* Gray circle events */
+/*-----------------------------------------------------------------------------------*/
+
+gint rcm_gray_expose_event(GtkWidget *widget, GdkEvent *event, RcmGray *circle);
+
+gint rcm_gray_button_press_event(GtkWidget *widget, GdkEvent *event, RcmGray *circle);
+
+gint rcm_gray_release_event(GtkWidget *widget, GdkEvent *event, RcmGray *circle);
+
+gint rcm_gray_motion_notify_event(GtkWidget *widget, GdkEvent *event, RcmGray *circle);
+
+/*---------------------