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gimp/plug-ins/common/bumpmap.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* Bump map plug-in --- emboss an image by using another image as a bump map
* Copyright (C) 1997 Federico Mena Quintero
* federico@nuclecu.unam.mx
* Copyright (C) 1997 Jens Lautenbacher
* jens@lemming0.lem.uni-karlsruhe.de
*
* 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.
*/
/* This plug-in uses the algorithm described by John Schlag, "Fast
* Embossing Effects on Raster Image Data" in Graphics Gems IV (ISBN
* 0-12-336155-9). It takes a grayscale image to be applied as a
* bump-map to another image, producing a nice embossing effect.
*/
/* Version 2.04:
*
* - The preview is now scrollable via draging with button 1 in the
* preview area. Thanks to Quartic for helping with gdk event handling.
*
* - The bumpmap's offset can alternatively be adjusted by dragging with
* button 3 in the preview area.
*/
/* Version 2.03:
*
* - Now transparency in the bumpmap drawable is handled as specified
* by the waterlevel parameter. Thanks to Jens for suggesting it!
*
* - New cool ambient lighting method. Thanks to Jens Lautenbacher
* for creating it! Something useful actually came out of those IRC
* sessions ;-)
*
* - Added proper rounding wherever it seemed appropriate. This fixes
* some minor artifacts in the output.
*/
/* Version 2.02:
*
* - Fixed a stupid bug in the preview code (offsets were not wrapped
* correctly in some situations). Thanks to Jens Lautenbacher for
* reporting it!
*/
/* Version 2.01:
*
* - For the preview, vertical scrolling and setting the vertical
* bumpmap offset are now *much* faster. Instead of calling
* gimp_pixel_rgn_get_row() a lot of times, I now use an adapted
* version of gimp_pixel_rgn_get_rect().
*/
/* Version 2.00:
*
* - Rewrote from the 0.54 version (well, from the 0.99.9
* distribution, actually...). New in this release are the correct
* handling of all image depths, sizes, and offsets. Also the
* different map types, the compensation and map inversion options
* were added. The preview widget is new, too.
*/
/* TODO:
*
* - Speed-ups
*/
#include <math.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "gtk/gtk.h"
#include "libgimp/gimp.h"
#include "libgimp/gimpui.h"
/***** Magic numbers *****/
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif /* M_PI */
#define PLUG_IN_NAME "plug_in_bump_map"
#define PLUG_IN_VERSION "August 1997, 2.04"
#define PREVIEW_SIZE 128
#define SCALE_WIDTH 200
#define ENTRY_WIDTH 60
#define CHECK_SIZE 8
#define CHECK_DARK ((int) (1.0 / 3.0 * 255))
#define CHECK_LIGHT ((int) (2.0 / 3.0 * 255))
/***** Types *****/
enum {
LINEAR = 0,
SPHERICAL,
SINUOSIDAL
};
enum {
DRAG_NONE = 0,
DRAG_SCROLL,
DRAG_BUMPMAP
};
typedef struct {
gint32 bumpmap_id;
gdouble azimuth;
gdouble elevation;
gint depth;
gint xofs;
gint yofs;
gint waterlevel;
gint ambient;
gint compensate;
gint invert;
gint type;
} bumpmap_vals_t;
typedef struct {
int lx, ly; /* X and Y components of light vector */
int nz2, nzlz; /* nz^2, nz*lz */
int background; /* Shade for vertical normals */
double compensation; /* Background compensation */
guchar lut[256]; /* Look-up table for modes */
} bumpmap_params_t;
typedef struct {
GtkWidget *preview;
int preview_width;
int preview_height;
int mouse_x;
int mouse_y;
int preview_xofs;
int preview_yofs;
int drag_mode;
guchar *check_row_0;
guchar *check_row_1;
guchar **src_rows;
guchar **bm_rows;
int src_yofs;
int bm_yofs;
GDrawable *bm_drawable;
int bm_width;
int bm_height;
int bm_bpp;
int bm_has_alpha;
GPixelRgn src_rgn;
GPixelRgn bm_rgn;
bumpmap_params_t params;
gint run;
} bumpmap_interface_t;
/***** Prototypes *****/
static void query(void);
static void run(char *name,
int nparams,
GParam *param,
int *nreturn_vals,
GParam **return_vals);
static void bumpmap(void);
static void bumpmap_init_params(bumpmap_params_t *params);
static void bumpmap_row(guchar *src_row,
guchar *dest_row,
int width,
int bpp,
int has_alpha,
guchar *bm_row1,
guchar *bm_row2,
guchar *bm_row3,
int bm_width,
int bm_xofs,
bumpmap_params_t *params);
static void bumpmap_convert_row(guchar *row, int width, int bpp, int has_alpha, guchar *lut);
static gint bumpmap_dialog(void);
static void dialog_init_preview(void);
static void dialog_new_bumpmap(void);
static void dialog_update_preview(void);
static gint dialog_preview_events(GtkWidget *widget, GdkEvent *event);
static void dialog_scroll_src(void);
static void dialog_scroll_bumpmap(void);
static void dialog_get_rows(GPixelRgn *pr, guchar **rows, int x, int y, int width, int height);
static void dialog_fill_src_rows(int start, int how_many, int yofs);
static void dialog_fill_bumpmap_rows(int start, int how_many, int yofs);
static void dialog_compensate_callback(GtkWidget *widget, gpointer data);
static void dialog_invert_callback(GtkWidget *widget, gpointer data);
static void dialog_map_type_callback(GtkWidget *widget, gpointer data);
static gint dialog_constrain(gint32 image_id, gint32 drawable_id, gpointer data);
static void dialog_bumpmap_callback(gint32 id, gpointer data);
static void dialog_create_dvalue(char *title, GtkTable *table, int row, gdouble *value,
double left, double right);
static void dialog_dscale_update(GtkAdjustment *adjustment, gdouble *value);
static void dialog_dentry_update(GtkWidget *widget, gdouble *value);
static void dialog_create_ivalue(char *title, GtkTable *table, int row, gint *value,
int left, int right, int full_update);
static void dialog_iscale_update_normal(GtkAdjustment *adjustment, gint *value);
static void dialog_iscale_update_full(GtkAdjustment *adjustment, gint *value);
static void dialog_ientry_update_normal(GtkWidget *widget, gint *value);
static void dialog_ientry_update_full(GtkWidget *widget, gint *value);
static void dialog_ok_callback(GtkWidget *widget, gpointer data);
static void dialog_cancel_callback(GtkWidget *widget, gpointer data);
static void dialog_close_callback(GtkWidget *widget, gpointer data);
/***** Variables *****/
GPlugInInfo PLUG_IN_INFO = {
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run /* run_proc */
}; /* PLUG_IN_INFO */
static bumpmap_vals_t bmvals = {
-1, /* bumpmap_id */
135.0, /* azimuth */
45.0, /* elevation */
3, /* depth */
0, /* xofs */
0, /* yofs */
0, /* waterlevel */
0, /* ambient */
FALSE, /* compensate */
FALSE, /* invert */
LINEAR /* type */
}; /* bmvals */
static bumpmap_interface_t bmint = {
NULL, /* preview */
0, /* preview_width */
0, /* preview_height */
0, /* mouse_x */
0, /* mouse_y */
0, /* preview_xofs */
0, /* preview_yofs */
DRAG_NONE, /* drag_mode */
NULL, /* check_row_0 */
NULL, /* check_row_1 */
NULL, /* src_rows */
NULL, /* bm_rows */
0, /* src_yofs */
-1, /* bm_yofs */
NULL, /* bm_drawable */
0, /* bm_width */
0, /* bm_height */
0, /* bm_bpp */
0, /* bm_has_alpha */
{ 0 }, /* src_rgn */
{ 0 }, /* bm_rgn */
{ 0 }, /* params */
FALSE /* run */
}; /* bmint */
static char *map_types[] = {
"Linear map",
"Spherical map",
"Sinuosidal map"
}; /* map_types */
GDrawable *drawable = NULL;
int sel_x1, sel_y1, sel_x2, sel_y2;
int sel_width, sel_height;
int img_bpp, img_has_alpha;
/***** Functions *****/
/*****/
MAIN()
/*****/
static void
query(void)
{
static GParamDef args[] = {
{ PARAM_INT32, "run_mode", "Interactive, non-interactive" },
{ PARAM_IMAGE, "image", "Input image" },
{ PARAM_DRAWABLE, "drawable", "Input drawable" },
{ PARAM_DRAWABLE, "bumpmap", "Bump map drawable" },
{ PARAM_FLOAT, "azimuth", "Azimuth" },
{ PARAM_FLOAT, "elevation", "Elevation" },
{ PARAM_INT32, "depth", "Depth" },
{ PARAM_INT32, "xofs", "X offset" },
{ PARAM_INT32, "yofs", "Y offset" },
{ PARAM_INT32, "waterlevel", "Level that full transparency should represent" },
{ PARAM_INT32, "ambient", "Ambient lighting factor" },
{ PARAM_INT32, "compensate", "Compensate for darkening" },
{ PARAM_INT32, "invert", "Invert bumpmap" },
{ PARAM_INT32, "type", "Type of map (LINEAR (0), SPHERICAL (1), SINUOSIDAL (2))" }
}; /* args */
static GParamDef *return_vals = NULL;
static int nargs = sizeof(args) / sizeof(args[0]);
static int nreturn_vals = 0;
gimp_install_procedure(PLUG_IN_NAME,
"Create an embossing effect using an image as a bump map",
"This plug-in uses the algorithm described by John Schlag, "
"\"Fast Embossing Effects on Raster Image Data\" in Graphics GEMS IV "
"(ISBN 0-12-336155-9). It takes a grayscale image to be applied as "
"a bump map to another image and produces a nice embossing effect.",
"Federico Mena Quintero and Jens Lautenbacher",
"Federico Mena Quintero and Jens Lautenbacher",
PLUG_IN_VERSION,
"<Image>/Filters/Map/Bump Map",
"RGB*, GRAY*",
PROC_PLUG_IN,
nargs,
nreturn_vals,
args,
return_vals);
} /* query */
/*****/
static void
run(char *name,
int nparams,
GParam *param,
int *nreturn_vals,
GParam **return_vals)
{
static GParam values[1];
GRunModeType run_mode;
GStatusType status;
status = STATUS_SUCCESS;
run_mode = param[0].data.d_int32;
values[0].type = PARAM_STATUS;
values[0].data.d_status = status;
*nreturn_vals = 1;
*return_vals = values;
/* Get drawable information */
drawable = gimp_drawable_get(param[2].data.d_drawable);
gimp_drawable_mask_bounds(drawable->id, &sel_x1, &sel_y1, &sel_x2, &sel_y2);
sel_width = sel_x2 - sel_x1;
sel_height = sel_y2 - sel_y1;
img_bpp = gimp_drawable_bpp(drawable->id);
img_has_alpha = gimp_drawable_has_alpha(drawable->id);
/* See how we will run */
switch (run_mode) {
case RUN_INTERACTIVE:
/* Possibly retrieve data */
gimp_get_data(PLUG_IN_NAME, &bmvals);
/* Get information from the dialog */
if (!bumpmap_dialog())
return;
break;
case RUN_NONINTERACTIVE:
/* Make sure all the arguments are present */
if (nparams != 14)
status = STATUS_CALLING_ERROR;
if (status == STATUS_SUCCESS) {
bmvals.bumpmap_id = param[3].data.d_drawable;
bmvals.azimuth = param[4].data.d_float;
bmvals.elevation = param[5].data.d_float;
bmvals.depth = param[6].data.d_int32;
bmvals.depth = param[6].data.d_int32;
bmvals.xofs = param[7].data.d_int32;
bmvals.yofs = param[8].data.d_int32;
bmvals.waterlevel = param[9].data.d_int32;
bmvals.ambient = param[10].data.d_int32;
bmvals.compensate = param[11].data.d_int32;
bmvals.invert = param[12].data.d_int32;
bmvals.type = param[13].data.d_int32;
} /* if */
break;
case RUN_WITH_LAST_VALS:
/* Possibly retrieve data */
gimp_get_data(PLUG_IN_NAME, &bmvals);
break;
default:
break;
} /* switch */
/* Bumpmap the image */
if (status == STATUS_SUCCESS) {
if ((gimp_drawable_color(drawable->id) ||
gimp_drawable_gray(drawable->id))) {
/* Set the tile cache size */
gimp_tile_cache_ntiles((drawable->width + gimp_tile_width() - 1) /
gimp_tile_width());
/* Run! */
bumpmap();
/* If run mode is interactive, flush displays */
if (run_mode != RUN_NONINTERACTIVE)
gimp_displays_flush();
/* Store data */
if (run_mode == RUN_INTERACTIVE)
gimp_set_data(PLUG_IN_NAME, &bmvals, sizeof(bumpmap_vals_t));
} /* if */
} else
status = STATUS_EXECUTION_ERROR;
values[0].data.d_status = status;
gimp_drawable_detach(drawable);
} /* run */
/*****/
static void
bumpmap(void)
{
bumpmap_params_t params;
GDrawable *bm_drawable;
GPixelRgn src_rgn, dest_rgn, bm_rgn;
int bm_width, bm_height, bm_bpp, bm_has_alpha;
int yofs1, yofs2, yofs3;
guchar *bm_row1, *bm_row2, *bm_row3, *bm_tmprow;
guchar *src_row, *dest_row;
int y;
int progress;
#if 0
printf("bumpmap: waiting... (pid %d)\n", getpid());
kill(getpid(), SIGSTOP);
#endif
gimp_progress_init("Bump-mapping...");
/* Get the bumpmap drawable */
if (bmvals.bumpmap_id != -1)
bm_drawable = gimp_drawable_get(bmvals.bumpmap_id);
else
bm_drawable = drawable;
/* Get image information */
bm_width = gimp_drawable_width(bm_drawable->id);
bm_height = gimp_drawable_height(bm_drawable->id);
bm_bpp = gimp_drawable_bpp(bm_drawable->id);
bm_has_alpha = gimp_drawable_has_alpha(bm_drawable->id);
/* Initialize offsets */
if (bmvals.yofs < 0)
yofs2 = bm_height - (-bmvals.yofs % bm_height);
else
yofs2 = bmvals.yofs % bm_height;
yofs1 = (yofs2 + bm_height - 1) % bm_height;
yofs3 = (yofs2 + 1) % bm_height;
/* Initialize row buffers */
bm_row1 = g_malloc(bm_width * bm_bpp * sizeof(guchar));
bm_row2 = g_malloc(bm_width * bm_bpp * sizeof(guchar));
bm_row3 = g_malloc(bm_width * bm_bpp * sizeof(guchar));
src_row = g_malloc(sel_width * img_bpp * sizeof(guchar));
dest_row = g_malloc(sel_width * img_bpp * sizeof(guchar));
/* Initialize pixel regions */
gimp_pixel_rgn_init(&src_rgn, drawable, sel_x1, sel_y1, sel_width, sel_height, FALSE, FALSE);
gimp_pixel_rgn_init(&dest_rgn, drawable, sel_x1, sel_y1, sel_width, sel_height, TRUE, TRUE);
gimp_pixel_rgn_init(&bm_rgn, bm_drawable, 0, 0, bm_width, bm_height, FALSE, FALSE);
/* Bumpmap */
bumpmap_init_params(&params);
gimp_pixel_rgn_get_row(&bm_rgn, bm_row1, 0, yofs1, bm_width);
gimp_pixel_rgn_get_row(&bm_rgn, bm_row2, 0, yofs2, bm_width);
gimp_pixel_rgn_get_row(&bm_rgn, bm_row3, 0, yofs3, bm_width);
bumpmap_convert_row(bm_row1, bm_width, bm_bpp, bm_has_alpha, params.lut);
bumpmap_convert_row(bm_row2, bm_width, bm_bpp, bm_has_alpha, params.lut);
bumpmap_convert_row(bm_row3, bm_width, bm_bpp, bm_has_alpha, params.lut);
progress = 0;
for (y = sel_y1; y < sel_y2; y++) {
gimp_pixel_rgn_get_row(&src_rgn, src_row, sel_x1, y, sel_width);
bumpmap_row(src_row, dest_row, sel_width, img_bpp, img_has_alpha,
bm_row1, bm_row2, bm_row3, bm_width, bmvals.xofs, &params);
gimp_pixel_rgn_set_row(&dest_rgn, dest_row, sel_x1, y, sel_width);
/* Next line */
bm_tmprow = bm_row1;
bm_row1 = bm_row2;
bm_row2 = bm_row3;
bm_row3 = bm_tmprow;
if (++yofs3 == bm_height)
yofs3 = 0;
gimp_pixel_rgn_get_row(&bm_rgn, bm_row3, 0, yofs3, bm_width);
bumpmap_convert_row(bm_row3, bm_width, bm_bpp, bm_has_alpha, params.lut);
gimp_progress_update((double) ++progress / sel_height);
} /* for */
/* Done */
g_free(bm_row1);
g_free(bm_row2);
g_free(bm_row3);
g_free(src_row);
g_free(dest_row);
if (bm_drawable != drawable)
gimp_drawable_detach(bm_drawable);
gimp_drawable_flush(drawable);
gimp_drawable_merge_shadow(drawable->id, TRUE);
gimp_drawable_update(drawable->id, sel_x1, sel_y1, sel_width, sel_height);
} /* bumpmap */
/*****/
static void
bumpmap_init_params(bumpmap_params_t *params)
{
double azimuth;
double elevation;
int lz, nz;
int i;
double n;
/* Convert to radians */
azimuth = M_PI * bmvals.azimuth / 180.0;
elevation = M_PI * bmvals.elevation / 180.0;
/* Calculate the light vector */
params->lx = cos(azimuth) * cos(elevation) * 255.0;
params->ly = sin(azimuth) * cos(elevation) * 255.0;
lz = sin(elevation) * 255.0;
/* Calculate constant Z component of surface normal */
nz = (6 * 255) / bmvals.depth;
params->nz2 = nz * nz;
params->nzlz = nz * lz;
/* Optimize for vertical normals */
params->background = lz;
/* Calculate darkness compensation factor */
params->compensation = sin(elevation);
/* Create look-up table for map type */
for (i = 0; i < 256; i++) {
switch (bmvals.type) {
case SPHERICAL:
n = i / 255.0 - 1.0;
params->lut[i] = (int) (255.0 * sqrt(1.0 - n * n) + 0.5);
break;
case SINUOSIDAL:
n = i / 255.0;
params->lut[i] = (int) (255.0 * (sin((-M_PI / 2.0) + M_PI * n) + 1.0) /
2.0 + 0.5);
break;
case LINEAR:
default:
params->lut[i] = i;
} /* switch */
if (bmvals.invert)
params->lut[i] = 255 - params->lut[i];
} /* for */
} /* bumpmap_init_params */
/*****/
static void
bumpmap_row(guchar *src_row,
guchar *dest_row,
int width,
int bpp,
int has_alpha,
guchar *bm_row1,
guchar *bm_row2,
guchar *bm_row3,
int bm_width,
int bm_xofs,
bumpmap_params_t *params)
{
guchar *src, *dest;
int xofs1, xofs2, xofs3;
int shade;
int ndotl;
int nx, ny;
int x, k;
int pbpp;
int result;
if (has_alpha)
pbpp = bpp - 1;
else
pbpp = bpp;
if (bm_xofs < 0)
xofs2 = bm_width - (-bm_xofs % bm_width);
else
xofs2 = bm_xofs % bm_width;
xofs1 = (xofs2 + bm_width - 1) % bm_width;
xofs3 = (xofs2 + 1) % bm_width;
src = src_row;
dest = dest_row;
for (x = 0; x < width; x++) {
/* Calculate surface normal from bump map */
nx = (bm_row1[xofs1] + bm_row2[xofs1] + bm_row3[xofs1] -
bm_row1[xofs3] - bm_row2[xofs3] - bm_row3[xofs3]);
ny = (bm_row3[xofs1] + bm_row3[xofs2] + bm_row3[xofs3] -
bm_row1[xofs1] - bm_row1[xofs2] - bm_row1[xofs3]);
/* Shade */
if ((nx == 0) && (ny == 0))
shade = params->background;
else {
ndotl = nx * params->lx + ny * params->ly + params->nzlz;
if (ndotl < 0)
shade = params->compensation * bmvals.ambient;
else {
shade = ndotl / sqrt(nx * nx + ny * ny + params->nz2);
shade = shade + MAX(0, (255 * params->compensation - shade)) *
bmvals.ambient / 255;
} /* else */
} /* else */
/* Paint */
if (bmvals.compensate)
for (k = pbpp; k; k--) {
result = (*src++ * shade) / (params->compensation * 255);
*dest++ = MIN(255, result);
} /* for */
else
for (k = pbpp; k; k--)
*dest++ = *src++ * shade / 255;
if (has_alpha)
*dest++ = *src++;
/* Next pixel */
if (++xofs1 == bm_width)
xofs1 = 0;
if (++xofs2 == bm_width)
xofs2 = 0;
if (++xofs3 == bm_width)
xofs3 = 0;
} /* for */
} /* bumpmap_row */
/*****/
static void
bumpmap_convert_row(guchar *row, int width, int bpp, int has_alpha, guchar *lut)
{
guchar *p;
p = row;
has_alpha = has_alpha ? 1 : 0;
if (bpp >= 3)
for (; width; width--) {
if (has_alpha)
*p++ = lut[(int) (bmvals.waterlevel +
(((int)
(0.30 * row[0] + 0.59 * row[1] + 0.11 * row[2] + 0.5) -
bmvals.waterlevel) *
row[3]) / 255.0)];
else
*p++ = lut[(int) (0.30 * row[0] + 0.59 * row[1] + 0.11 * row[2] + 0.5)];
row += 3 + has_alpha;
} /* for */
else
for (; width; width--) {
if (has_alpha)
*p++ = lut[bmvals.waterlevel +
((row[0] - bmvals.waterlevel) * row[1]) / 255];
else
*p++ = lut[*row];
row += 1 + has_alpha;
} /* for */
} /* bumpmap_convert_row */
/*****/
static gint
bumpmap_dialog(void)
{
GtkWidget *dialog;
GtkWidget *top_table;
GtkWidget *frame;
GtkWidget *table;
GtkWidget *vbox;
GtkWidget *label;
GtkWidget *option_menu;
GtkWidget *menu;
GtkWidget *button;
GSList *group;
gint argc;
gchar **argv;
guchar *color_cube;
int i;
#if 0
printf("bumpmap: waiting... (pid %d)\n", getpid());
kill(getpid(), SIGSTOP);
#endif
argc = 1;
argv = g_new(gchar *, 1);
argv[0] = g_strdup("bumpmap");
gtk_init(&argc, &argv);
gtk_rc_parse(gimp_gtkrc());
gdk_set_use_xshm(gimp_use_xshm());
gtk_preview_set_gamma(gimp_gamma());
gtk_preview_set_install_cmap(gimp_install_cmap());
color_cube = gimp_color_cube();
gtk_preview_set_color_cube(color_cube[0], color_cube[1], color_cube[2], color_cube[3]);
gtk_widget_set_default_visual(gtk_preview_get_visual());
gtk_widget_set_default_colormap(gtk_preview_get_cmap());
/* Dialog */
dialog = gtk_dialog_new();
gtk_window_set_title(GTK_WINDOW(dialog), "Bump map");
gtk_window_position(GTK_WINDOW(dialog), GTK_WIN_POS_MOUSE);
gtk_container_border_width(GTK_CONTAINER(dialog), 0);
gtk_signal_connect(GTK_OBJECT(dialog), "destroy",
(GtkSignalFunc) dialog_close_callback,
NULL);
top_table = gtk_table_new(2, 2, FALSE);
gtk_container_border_width(GTK_CONTAINER(top_table), 6);
gtk_table_set_row_spacings(GTK_TABLE(top_table), 4);
gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), top_table, FALSE, FALSE, 0);
gtk_widget_show(top_table);
/* Preview */
table = gtk_table_new(2, 2, FALSE);
gtk_container_border_width(GTK_CONTAINER(table), 0);
gtk_table_attach(GTK_TABLE(top_table), table, 0, 1, 0, 1, 0, 0, 0, 0);
gtk_widget_show(table);
frame = gtk_frame_new(NULL);
gtk_frame_set_shadow_type(GTK_FRAME(frame), GTK_SHADOW_IN);
gtk_table_attach(GTK_TABLE(table), frame, 0, 1, 0, 1, 0, 0, 0, 0);
gtk_widget_show(frame);
bmint.preview_width = MIN(sel_width, PREVIEW_SIZE);
bmint.preview_height = MIN(sel_height, PREVIEW_SIZE);
bmint.preview = gtk_preview_new(GTK_PREVIEW_COLOR);
gtk_preview_size(GTK_PREVIEW(bmint.preview), bmint.preview_width, bmint.preview_height);
gtk_container_add(GTK_CONTAINER(frame), bmint.preview);
gtk_widget_show(bmint.preview);
gtk_widget_set_events(bmint.preview,
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_BUTTON_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK);
gtk_signal_connect(GTK_OBJECT(bmint.preview), "event",
(GtkSignalFunc) dialog_preview_events,
NULL);
dialog_init_preview();
/* Table for upper-right controls */
table = gtk_table_new(3, 1, FALSE);
gtk_container_border_width(GTK_CONTAINER(table), 0);
gtk_table_attach(GTK_TABLE(top_table), table, 1, 2, 0, 1,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_show(table);
/* Compensate darkening */
button = gtk_check_button_new_with_label("Compensate for darkening");
gtk_table_attach(GTK_TABLE(table), button, 0, 1, 0, 1,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_toggle_button_set_state(GTK_TOGGLE_BUTTON(button), bmvals.compensate ? TRUE : FALSE);
gtk_signal_connect(GTK_OBJECT(button), "toggled",
(GtkSignalFunc) dialog_compensate_callback,
NULL);
gtk_widget_show(button);
/* Invert bumpmap */
button = gtk_check_button_new_with_label("Invert bumpmap");
gtk_table_attach(GTK_TABLE(table), button, 0, 1, 1, 2,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_toggle_button_set_state(GTK_TOGGLE_BUTTON(button), bmvals.invert ? TRUE : FALSE);
gtk_signal_connect(GTK_OBJECT(button), "toggled",
(GtkSignalFunc) dialog_invert_callback,
NULL);
gtk_widget_show(button);
/* Type of map */
frame = gtk_frame_new(NULL);
gtk_frame_set_shadow_type(GTK_FRAME(frame), GTK_SHADOW_ETCHED_IN);
gtk_table_attach(GTK_TABLE(table), frame, 0, 1, 2, 3, GTK_EXPAND | GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show(frame);
vbox = gtk_vbox_new(FALSE, 0);
gtk_container_border_width(GTK_CONTAINER(vbox), 4);
gtk_container_add(GTK_CONTAINER(frame), vbox);
gtk_widget_show(vbox);
group = NULL;
for (i = 0; i < (sizeof(map_types) / sizeof(map_types[0])); i++) {
button = gtk_radio_button_new_with_label(group, map_types[i]);
group = gtk_radio_button_group(GTK_RADIO_BUTTON(button));
if (i == bmvals.type)
gtk_toggle_button_set_state(GTK_TOGGLE_BUTTON(button), TRUE);
gtk_signal_connect(GTK_OBJECT(button), "toggled",
(GtkSignalFunc) dialog_map_type_callback,
(gpointer) ((long) i));
gtk_box_pack_start(GTK_BOX(vbox), button, FALSE, FALSE, 0);
gtk_widget_show(button);
} /* for */
/* Table for bottom controls */
table = gtk_table_new(8, 3, FALSE);
gtk_container_border_width(GTK_CONTAINER(table), 0);
gtk_table_attach(GTK_TABLE(top_table), table, 0, 2, 1, 2, GTK_EXPAND | GTK_FILL, 0, 0, 0);
gtk_widget_show(table);
/* Bump map menu */
label = gtk_label_new("Bump map");
gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5);
gtk_table_attach(GTK_TABLE(table), label, 0, 1, 0, 1, GTK_FILL, GTK_FILL, 4, 0);
gtk_widget_show(label);
option_menu = gtk_option_menu_new();
gtk_table_attach(GTK_TABLE(table), option_menu, 1, 2, 0, 1,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_show(option_menu);
menu = gimp_drawable_menu_new(dialog_constrain,
dialog_bumpmap_callback,
NULL,
bmvals.bumpmap_id);
gtk_option_menu_set_menu(GTK_OPTION_MENU(option_menu), menu);
gtk_widget_show(option_menu);
/* Controls */
dialog_create_dvalue("Azimuth", GTK_TABLE(table), 1, &bmvals.azimuth, 0.0, 360.0);
dialog_create_dvalue("Elevation", GTK_TABLE(table), 2, &bmvals.elevation, 0.5, 90.0);
dialog_create_ivalue("Depth", GTK_TABLE(table), 3, &bmvals.depth, 1, 65, FALSE);
dialog_create_ivalue("X offset", GTK_TABLE(table), 4, &bmvals.xofs, -1000, 1001, FALSE);
dialog_create_ivalue("Y offset", GTK_TABLE(table), 5, &bmvals.yofs, -1000, 1001, FALSE);
dialog_create_ivalue("Waterlevel", GTK_TABLE(table), 6, &bmvals.waterlevel, 0, 256, TRUE);
dialog_create_ivalue("Ambient", GTK_TABLE(table), 7, &bmvals.ambient, 0, 256, FALSE);
/* Buttons */
gtk_container_border_width(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), 6);
button = gtk_button_new_with_label("OK");
GTK_WIDGET_SET_FLAGS(button, GTK_CAN_DEFAULT);
gtk_signal_connect(GTK_OBJECT(button), "clicked",
(GtkSignalFunc) dialog_ok_callback,
dialog);
gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->action_area), button, TRUE, TRUE, 0);
gtk_widget_grab_default(button);
gtk_widget_show(button);
button = gtk_button_new_with_label("Cancel");
GTK_WIDGET_SET_FLAGS(button, GTK_CAN_DEFAULT);
gtk_signal_connect(GTK_OBJECT(button), "clicked",
(GtkSignalFunc) dialog_cancel_callback,
dialog);
gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->action_area), button, TRUE, TRUE, 0);
gtk_widget_show(button);
/* Done */
gtk_widget_show(dialog);
dialog_new_bumpmap();
dialog_update_preview();
gtk_main();
gdk_flush();
g_free(bmint.check_row_0);
g_free(bmint.check_row_1);
for (i = 0; i < bmint.preview_height; i++)
g_free(bmint.src_rows[i]);
g_free(bmint.src_rows);
for (i = 0; i < (bmint.preview_height + 2); i++)
g_free(bmint.bm_rows[i]);
g_free(bmint.bm_rows);
if (bmint.bm_drawable != drawable)
gimp_drawable_detach(bmint.bm_drawable);
return bmint.run;
} /* bumpmap_dialog */
/*****/
static void
dialog_init_preview(void)
{
int x;
/* Create checkerboard rows */
bmint.check_row_0 = g_malloc(bmint.preview_width * sizeof(guchar));
bmint.check_row_1 = g_malloc(bmint.preview_width * sizeof(guchar));
for (x = 0; x < bmint.preview_width; x++)
if ((x / CHECK_SIZE) & 1) {
bmint.check_row_0[x] = CHECK_DARK;
bmint.check_row_1[x] = CHECK_LIGHT;
} else {
bmint.check_row_0[x] = CHECK_LIGHT;
bmint.check_row_1[x] = CHECK_DARK;
} /* else */
/* Initialize source rows */
gimp_pixel_rgn_init(&bmint.src_rgn, drawable, sel_x1, sel_y1, sel_width, sel_height, FALSE, FALSE);
bmint.src_rows = g_malloc(bmint.preview_height * sizeof(guchar *));
for (x = 0; x < bmint.preview_height; x++)
bmint.src_rows[x] = g_malloc(sel_width * 4 * sizeof(guchar));
dialog_fill_src_rows(0,
bmint.preview_height,
sel_y1 + bmint.preview_yofs);
/* Initialize bumpmap rows */
bmint.bm_rows = g_malloc((bmint.preview_height + 2) * sizeof(guchar *)); /* Plus 2 for conv. matrix */
for (x = 0; x < (bmint.preview_height + 2); x++)
bmint.bm_rows[x] = NULL;
} /* dialog_init_preview */
/*****/
static gint
dialog_preview_events(GtkWidget *widget, GdkEvent *event)
{
gint x, y;
gint dx, dy;
GdkEventButton *bevent;
gtk_widget_get_pointer(widget, &x, &y);
bevent = (GdkEventButton *) event;
switch (event->type) {
case GDK_BUTTON_PRESS:
switch (bevent->button) {
case 1:
if (bevent->state & GDK_SHIFT_MASK)
bmint.drag_mode = DRAG_BUMPMAP;
else
bmint.drag_mode = DRAG_SCROLL;
break;
case 3:
bmint.drag_mode = DRAG_BUMPMAP;
break;
default:
return FALSE;
} /* switch */
bmint.mouse_x = x;
bmint.mouse_y = y;
gtk_grab_add(widget);
break;
case GDK_BUTTON_RELEASE:
if (bmint.drag_mode != DRAG_NONE) {
gtk_grab_remove(widget);
bmint.drag_mode = DRAG_NONE;
dialog_update_preview();
} /* if */
break;
case GDK_MOTION_NOTIFY:
dx = x - bmint.mouse_x;
dy = y - bmint.mouse_y;
bmint.mouse_x = x;
bmint.mouse_y = y;
if ((dx == 0) && (dy == 0))
break;
switch (bmint.drag_mode) {
case DRAG_SCROLL:
bmint.preview_xofs = CLAMP(bmint.preview_xofs - dx,
0,
sel_width - bmint.preview_width);
bmint.preview_yofs = CLAMP(bmint.preview_yofs - dy,
0,
sel_height - bmint.preview_height);
break;
case DRAG_BUMPMAP:
bmvals.xofs = CLAMP(bmvals.xofs - dx, -1000, 1000);
bmvals.yofs = CLAMP(bmvals.yofs - dy, -1000, 1000);
break;
default:
return FALSE;
} /* switch */
dialog_update_preview();
break;
default:
break;
} /* switch */
return FALSE;
} /* dialog_preview_events */
/*****/
static void
dialog_new_bumpmap(void)
{
int i;
int yofs;
/* Get drawable */
if (bmint.bm_drawable && (bmint.bm_drawable != drawable))
gimp_drawable_detach(bmint.bm_drawable);
if (bmvals.bumpmap_id != -1)
bmint.bm_drawable = gimp_drawable_get(bmvals.bumpmap_id);
else
bmint.bm_drawable = drawable;
/* Get sizes */
bmint.bm_width = gimp_drawable_width(bmint.bm_drawable->id);
bmint.bm_height = gimp_drawable_height(bmint.bm_drawable->id);
bmint.bm_bpp = gimp_drawable_bpp(bmint.bm_drawable->id);
bmint.bm_has_alpha = gimp_drawable_has_alpha(bmint.bm_drawable->id);
/* Initialize pixel region */
gimp_pixel_rgn_init(&bmint.bm_rgn, bmint.bm_drawable, 0, 0, bmint.bm_width, bmint.bm_height,
FALSE, FALSE);
/* Initialize row buffers */
yofs = bmvals.yofs + bmint.preview_yofs - 1; /* Minus 1 for conv. matrix */
if (yofs < 0)
yofs = bmint.bm_height - (-yofs % bmint.bm_height);
else
yofs %= bmint.bm_height;
bmint.bm_yofs = yofs;
for (i = 0; i < (bmint.preview_height + 2); i++) {
if (bmint.bm_rows[i])
g_free(bmint.bm_rows[i]);
bmint.bm_rows[i] = g_malloc(bmint.bm_width * bmint.bm_bpp * sizeof(guchar));
} /* for */
bumpmap_init_params(&bmint.params);
dialog_fill_bumpmap_rows(0, bmint.preview_height + 2, yofs);
} /* dialog_new_bumpmap */
/*****/
static void
dialog_update_preview()
{
static guchar dest_row[PREVIEW_SIZE * 4];
static guchar preview_row[PREVIEW_SIZE * 3];
guchar *check_row;
guchar check;
int xofs;
int x, y;
guchar *sp, *p;
bumpmap_init_params(&bmint.params);
/* Scroll the row buffers */
dialog_scroll_src();
dialog_scroll_bumpmap();
/* Bumpmap */
xofs = bmint.preview_xofs;
for (y = 0; y < bmint.preview_height; y++) {
bumpmap_row(bmint.src_rows[y] + 4 * xofs, dest_row,
bmint.preview_width, 4, TRUE,
bmint.bm_rows[y], bmint.bm_rows[y + 1], bmint.bm_rows[y + 2],
bmint.bm_width, xofs + bmvals.xofs, &bmint.params);
/* Paint row */
sp = dest_row;
p = preview_row;
if ((y / CHECK_SIZE) & 1)
check_row = bmint.check_row_0;
else
check_row = bmint.check_row_1;
for (x = 0; x < bmint.preview_width; x++) {
check = check_row[x];
p[0] = check + ((sp[0] - check) * sp[3]) / 255;
p[1] = check + ((sp[1] - check) * sp[3]) / 255;
p[2] = check + ((sp[2] - check) * sp[3]) / 255;
sp += 4;
p += 3;
} /* for */
gtk_preview_draw_row(GTK_PREVIEW(bmint.preview), preview_row, 0, y, bmint.preview_width);
} /* for */
gtk_widget_draw(bmint.preview, NULL);
gdk_flush();
} /* dialog_update_preview */
/*****/
#define SWAP_ROWS(a, b, t) { t = a; a = b; b = t; }
static void
dialog_scroll_src(void)
{
int yofs;
int y, ofs;
guchar *tmp;
yofs = bmint.preview_yofs;
if (yofs == bmint.src_yofs)
return;
if (yofs < bmint.src_yofs) {
ofs = bmint.src_yofs - yofs;
/* Scroll useful rows... */
if (ofs < bmint.preview_height)
for (y = (bmint.preview_height - 1); y >= ofs; y--)
SWAP_ROWS(bmint.src_rows[y], bmint.src_rows[y - ofs], tmp);
/* ... and get the new ones */
dialog_fill_src_rows(0, MIN(ofs, bmint.preview_height), sel_y1 + yofs);
} else {
ofs = yofs - bmint.src_yofs;
/* Scroll useful rows... */
if (ofs < bmint.preview_height)
for (y = 0; y < (bmint.preview_height - ofs); y++)
SWAP_ROWS(bmint.src_rows[y], bmint.src_rows[y + ofs], tmp);
/* ... and get the new ones */
dialog_fill_src_rows(bmint.preview_height - MIN(ofs, bmint.preview_height),
MIN(ofs, bmint.preview_height),
sel_y1 + yofs + bmint.preview_height - MIN(ofs, bmint.preview_height));
} /* else */
bmint.src_yofs = yofs;
} /* dialog_scroll_src */
/*****/
static void
dialog_scroll_bumpmap(void)
{
int yofs;
int y, ofs;
guchar *tmp;
yofs = bmvals.yofs + bmint.preview_yofs - 1; /* Minus 1 for conv. matrix */
if (yofs < 0)
yofs = bmint.bm_height - (-yofs % bmint.bm_height);
else
yofs %= bmint.bm_height;
if (yofs == bmint.bm_yofs)
return;
if (yofs < bmint.bm_yofs) {
ofs = bmint.bm_yofs - yofs;
/* Scroll useful rows... */
if (ofs < (bmint.preview_height + 2))
for (y = (bmint.preview_height + 1); y >= ofs; y--)
SWAP_ROWS(bmint.bm_rows[y], bmint.bm_rows[y - ofs], tmp);
/* ... and get the new ones */
dialog_fill_bumpmap_rows(0,
MIN(ofs, bmint.preview_height + 2),
yofs);
} else {
ofs = yofs - bmint.bm_yofs;
/* Scroll useful rows... */
if (ofs < (bmint.preview_height + 2))
for (y = 0; y < (bmint.preview_height + 2 - ofs); y++)
SWAP_ROWS(bmint.bm_rows[y], bmint.bm_rows[y + ofs], tmp);
/* ... and get the new ones */
dialog_fill_bumpmap_rows(bmint.preview_height + 2 - MIN(ofs, bmint.preview_height + 2),
MIN(ofs, bmint.preview_height + 2),
(yofs + bmint.preview_height + 2 -
MIN(ofs, bmint.preview_height + 2)) % bmint.bm_height);
} /* else */
bmint.bm_yofs = yofs;
} /* dialog_scroll_bumpmap */
/*****/
static void
dialog_get_rows(GPixelRgn *pr, guchar **rows, int x, int y, int width, int height)
{
/* This is shamelessly ripped off from gimp_pixel_rgn_get_rect().
* Its function is exactly the same, but it can fetch an image
* rectangle to a sparse buffer which is defined as separate
* rows instead of one big linear region.
*/
GTile *tile;
guchar *src, *dest;
int xstart, ystart;
int xend, yend;
int xboundary;
int yboundary;
int xstep, ystep;
int b, bpp;
int tx, ty;
int tile_width, tile_height;
tile_width = gimp_tile_width();
tile_height = gimp_tile_height();
bpp = pr->bpp;
xstart = x;
ystart = y;
xend = x + width;
yend = y + height;
ystep = 0; /* Shut up -Wall */
while (y < yend) {
x = xstart;
while (x < xend) {
tile = gimp_drawable_get_tile2(pr->drawable, pr->shadow, x, y);
gimp_tile_ref(tile);
xstep = tile->ewidth - (x % tile_width);
ystep = tile->eheight - (y % tile_height);
xboundary = x + xstep;
yboundary = y + ystep;
xboundary = MIN(xboundary, xend);
yboundary = MIN(yboundary, yend);
for (ty = y; ty < yboundary; ty++) {
src = tile->data + tile->bpp * (tile->ewidth * (ty % tile_height) +
(x % tile_width));
dest = rows[ty - ystart] + bpp * (x - xstart);
for (tx = x; tx < xboundary; tx++)
for (b = bpp; b; b--)
*dest++ = *src++;
} /* for */
gimp_tile_unref(tile, FALSE);
x += xstep;
} /* while */
y += ystep;
} /* while */
} /* dialog_get_rows */
/*****/
static void
dialog_fill_src_rows(int start, int how_many, int yofs)
{
int x, y;
guchar *sp, *p;
dialog_get_rows(&bmint.src_rgn,
bmint.src_rows + start,
sel_x1,
yofs,
sel_width,
how_many);
/* Convert to RGBA. We move backwards! */
for (y = start; y < (start + how_many); y++) {
sp = bmint.src_rows[y] + img_bpp * sel_width - 1;
p = bmint.src_rows[y] + 4 * sel_width - 1;
for (x = 0; x < sel_width; x++) {
if (img_has_alpha)
*p-- = *sp--;
else
*p-- = 255;
if (img_bpp < 3) {
*p-- = *sp;
*p-- = *sp;
*p-- = *sp--;
} else {
*p-- = *sp--;
*p-- = *sp--;
*p-- = *sp--;
} /* else */
} /* for */
} /* for */
} /* dialog_fill_src_rows */
/*****/
static void
dialog_fill_bumpmap_rows(int start, int how_many, int yofs)
{
int buf_row_ofs;
int remaining;
int this_pass;
buf_row_ofs = start;
remaining = how_many;
while (remaining > 0) {
this_pass = MIN(remaining, bmint.bm_height - yofs);
dialog_get_rows(&bmint.bm_rgn,
bmint.bm_rows + buf_row_ofs,
0,
yofs,
bmint.bm_width,
this_pass);
yofs = (yofs + this_pass) % bmint.bm_height;
remaining -= this_pass;
buf_row_ofs += this_pass;
} /* while */
/* Convert rows */
for (; how_many; how_many--) {
bumpmap_convert_row(bmint.bm_rows[start], bmint.bm_width, bmint.bm_bpp, bmint.bm_has_alpha,
bmint.params.lut);
start++;
} /* for */
} /* dialog_fill_bumpmap_rows */
/*****/
static void
dialog_compensate_callback(GtkWidget *widget, gpointer data)
{
bmvals.compensate = GTK_TOGGLE_BUTTON(widget)->active;
dialog_update_preview();
} /* dialog_compensate_callback */
/*****/
static void
dialog_invert_callback(GtkWidget *widget, gpointer data)
{
bmvals.invert = GTK_TOGGLE_BUTTON(widget)->active;
bumpmap_init_params(&bmint.params);
dialog_fill_bumpmap_rows(0, bmint.preview_height + 2, bmint.bm_yofs);
dialog_update_preview();
} /* dialog_invert_callback */
/*****/
static void
dialog_map_type_callback(GtkWidget *widget, gpointer data)
{
if (GTK_TOGGLE_BUTTON(widget)->active) {
bmvals.type = (long) data;
bumpmap_init_params(&bmint.params);
dialog_fill_bumpmap_rows(0, bmint.preview_height + 2, bmint.bm_yofs);
dialog_update_preview();
} /* if */
} /* dialog_map_type_callback */
/*****/
static gint
dialog_constrain(gint32 image_id, gint32 drawable_id, gpointer data)
{
if (drawable_id == -1)
return TRUE;
return (gimp_drawable_color(drawable_id) || gimp_drawable_gray(drawable_id));
} /* dialog_constrain */
/*****/
static void
dialog_bumpmap_callback(gint32 id, gpointer data)
{
bmvals.bumpmap_id = id;
dialog_new_bumpmap();
dialog_update_preview();
} /* dialog_bumpmap_callback */
/*****/
static void
dialog_create_dvalue(char *title, GtkTable *table, int row, gdouble *value, double left, double right)
{
GtkWidget *label;
GtkWidget *scale;
GtkWidget *entry;
GtkObject *scale_data;
char buf[256];
label = gtk_label_new(title);
gtk_misc_set_alignment(GTK_MISC(label), 0.0, 1.0);
gtk_table_attach(table, label, 0, 1, row, row + 1, GTK_FILL, GTK_FILL, 4, 0);
gtk_widget_show(label);
scale_data = gtk_adjustment_new(*value, left, right, 1.0, 1.0, 0.0);
gtk_signal_connect(GTK_OBJECT(scale_data), "value_changed",
(GtkSignalFunc) dialog_dscale_update,
value);
scale = gtk_hscale_new(GTK_ADJUSTMENT(scale_data));
gtk_widget_set_usize(scale, SCALE_WIDTH, 0);
gtk_table_attach(table, scale, 1, 2, row, row + 1, GTK_EXPAND | GTK_FILL, GTK_FILL, 0, 0);
gtk_scale_set_draw_value(GTK_SCALE(scale), FALSE);
gtk_range_set_update_policy(GTK_RANGE(scale), GTK_UPDATE_CONTINUOUS);
gtk_widget_show(scale);
entry = gtk_entry_new();
gtk_object_set_user_data(GTK_OBJECT(entry), scale_data);
gtk_object_set_user_data(scale_data, entry);
gtk_widget_set_usize(entry, ENTRY_WIDTH, 0);
sprintf(buf, "%0.2f", *value);
gtk_entry_set_text(GTK_ENTRY(entry), buf);
gtk_signal_connect(GTK_OBJECT(entry), "changed",
(GtkSignalFunc) dialog_dentry_update,
value);
gtk_table_attach(GTK_TABLE(table), entry, 2, 3, row, row + 1, GTK_FILL, GTK_FILL, 4, 0);
gtk_widget_show(entry);
} /* dialog_create_dvalue */
/*****/
static void
dialog_dscale_update(GtkAdjustment *adjustment, gdouble *value)
{
GtkWidget *entry;
char buf[256];
if (*value != adjustment->value) {
*value = adjustment->value;
entry = gtk_object_get_user_data(GTK_OBJECT(adjustment));
sprintf(buf, "%0.2f", *value);
gtk_signal_handler_block_by_data(GTK_OBJECT(entry), value);
gtk_entry_set_text(GTK_ENTRY(entry), buf);
gtk_signal_handler_unblock_by_data(GTK_OBJECT(entry), value);
dialog_update_preview();
} /* if */
} /* dialog_dscale_update */
/*****/
static void
dialog_dentry_update(GtkWidget *widget, gdouble *value)
{
GtkAdjustment *adjustment;
gdouble new_value;
new_value = atof(gtk_entry_get_text(GTK_ENTRY(widget)));
if (*value != new_value) {
adjustment = gtk_object_get_user_data(GTK_OBJECT(widget));
if ((new_value >= adjustment->lower) &&
(new_value <= adjustment->upper)) {
*value = new_value;
adjustment->value = new_value;
gtk_signal_emit_by_name(GTK_OBJECT(adjustment), "value_changed");
dialog_update_preview();
} /* if */
} /* if */
} /* dialog_dentry_update */
/*****/
static void
dialog_create_ivalue(char *title, GtkTable *table, int row, gint *value,
int left, int right, int full_update)
{
GtkWidget *label;
GtkWidget *scale;
GtkWidget *entry;
GtkObject *scale_data;
char buf[256];
label = gtk_label_new(title);
gtk_misc_set_alignment(GTK_MISC(label), 0.0, 1.0);
gtk_table_attach(table, label, 0, 1, row, row + 1, GTK_FILL, GTK_FILL, 4, 0);
gtk_widget_show(label);
scale_data = gtk_adjustment_new(*value, left, right, 1.0, 1.0, 1.0);
if (full_update)
gtk_signal_connect(GTK_OBJECT(scale_data), "value_changed",
(GtkSignalFunc) dialog_iscale_update_full,
value);
else
gtk_signal_connect(GTK_OBJECT(scale_data), "value_changed",
(GtkSignalFunc) dialog_iscale_update_normal,
value);
scale = gtk_hscale_new(GTK_ADJUSTMENT(scale_data));
gtk_widget_set_usize(scale, SCALE_WIDTH, 0);
gtk_table_attach(table, scale, 1, 2, row, row + 1, GTK_EXPAND | GTK_FILL, GTK_FILL, 0, 0);
gtk_scale_set_draw_value(GTK_SCALE(scale), FALSE);
gtk_range_set_update_policy(GTK_RANGE(scale), GTK_UPDATE_CONTINUOUS);
gtk_widget_show(scale);
entry = gtk_entry_new();
gtk_object_set_user_data(GTK_OBJECT(entry), scale_data);
gtk_object_set_user_data(scale_data, entry);
gtk_widget_set_usize(entry, ENTRY_WIDTH, 0);
sprintf(buf, "%d", *value);
gtk_entry_set_text(GTK_ENTRY(entry), buf);
if (full_update)
gtk_signal_connect(GTK_OBJECT(entry), "changed",
(GtkSignalFunc) dialog_ientry_update_full,
value);
else
gtk_signal_connect(GTK_OBJECT(entry), "changed",
(GtkSignalFunc) dialog_ientry_update_normal,
value);
gtk_table_attach(GTK_TABLE(table), entry, 2, 3, row, row + 1, GTK_FILL, GTK_FILL, 4, 0);
gtk_widget_show(entry);
} /* dialog_create_ivalue */
/*****/
static void
dialog_iscale_update_normal(GtkAdjustment *adjustment, gint *value)
{
GtkWidget *entry;
char buf[256];
if (*value != adjustment->value) {
*value = adjustment->value;
entry = gtk_object_get_user_data(GTK_OBJECT(adjustment));
sprintf(buf, "%d", *value);
gtk_signal_handler_block_by_data(GTK_OBJECT(entry), value);
gtk_entry_set_text(GTK_ENTRY(entry), buf);
gtk_signal_handler_unblock_by_data(GTK_OBJECT(entry), value);
dialog_update_preview();
} /* if */
} /* dialog_iscale_update_normal */
/*****/
static void
dialog_iscale_update_full(GtkAdjustment *adjustment, gint *value)
{
GtkWidget *entry;
char buf[256];
if (*value != adjustment->value) {
*value = adjustment->value;
entry = gtk_object_get_user_data(GTK_OBJECT(adjustment));
sprintf(buf, "%d", *value);
gtk_signal_handler_block_by_data(GTK_OBJECT(entry), value);
gtk_entry_set_text(GTK_ENTRY(entry), buf);
gtk_signal_handler_unblock_by_data(GTK_OBJECT(entry), value);
bumpmap_init_params(&bmint.params);
dialog_fill_bumpmap_rows(0, bmint.preview_height + 2, bmint.bm_yofs);
dialog_update_preview();
} /* if */
} /* dialog_iscale_update_full */
/*****/
static void
dialog_ientry_update_normal(GtkWidget *widget, gint *value)
{
GtkAdjustment *adjustment;
gdouble new_value;
new_value = atoi(gtk_entry_get_text(GTK_ENTRY(widget)));
if (*value != new_value) {
adjustment = gtk_object_get_user_data(GTK_OBJECT(widget));
if ((new_value >= adjustment->lower) &&
(new_value <= adjustment->upper)) {
*value = new_value;
adjustment->value = new_value;
gtk_signal_emit_by_name(GTK_OBJECT(adjustment), "value_changed");
dialog_update_preview();
} /* if */
} /* if */
} /* dialog_ientry_update_normal */
/*****/
static void
dialog_ientry_update_full(GtkWidget *widget, gint *value)
{
GtkAdjustment *adjustment;
gdouble new_value;
new_value = atoi(gtk_entry_get_text(GTK_ENTRY(widget)));
if (*value != new_value) {
adjustment = gtk_object_get_user_data(GTK_OBJECT(widget));
if ((new_value >= adjustment->lower) &&
(new_value <= adjustment->upper)) {
*value = new_value;
adjustment->value = new_value;
gtk_signal_emit_by_name(GTK_OBJECT(adjustment), "value_changed");
bumpmap_init_params(&bmint.params);
dialog_fill_bumpmap_rows(0, bmint.preview_height + 2, bmint.bm_yofs);
dialog_update_preview();
} /* if */
} /* if */
} /* dialog_ientry_update_full */
/*****/
static void
dialog_ok_callback(GtkWidget *widget, gpointer data)
{
bmint.run = TRUE;
gtk_widget_destroy(GTK_WIDGET(data));
} /* dialog_ok_callback */
/*****/
static void
dialog_cancel_callback(GtkWidget *widget, gpointer data)
{
gtk_widget_destroy(GTK_WIDGET(data));
} /* dialog_cancel_callback */
/*****/
static void
dialog_close_callback(GtkWidget *widget, gpointer data)
{
gtk_main_quit();
} /* dialog_close_callback */
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