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gimp/plug-ins/common/scatter_hsv.c

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/* scatter_hsv.c -- This is a plug-in for the GIMP (1.0's API)
* Author: Shuji Narazaki <narazaki@InetQ.or.jp>
* Time-stamp: <1997/10/22 01:04:54 narazaki@InetQ.or.jp>
* Version: 0.42
*
* Copyright (C) 1997 Shuji Narazaki <narazaki@InetQ.or.jp>
*
* 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.
*/
#include "gtk/gtk.h"
#include "libgimp/gimp.h"
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h> /* for seed of random number */
#ifndef RAND_MAX
#define RAND_MAX 2147483647
#endif /* RAND_MAX */
#define PLUG_IN_NAME "plug_in_scatter_hsv"
#define SHORT_NAME "scatter_hsv"
#define PROGRESS_NAME "scatter_hsv: scattering..."
#define MENU_POSITION "<Image>/Filters/Colors/Scatter HSV"
#define MAIN_FUNCTION scatter_hsv
#define INTERFACE scatter_hsv_interface
#define DIALOG scatter_hsv_dialog
#define ERROR_DIALOG scatter_hsv_error_dialog
#define VALS scatter_hsv_vals
#define OK_CALLBACK scatter_hsv_ok_callback
static void query (void);
static void run (char *name,
int nparams,
GParam *param,
int *nreturn_vals,
GParam **return_vals);
static GStatusType MAIN_FUNCTION (gint32 drawable_id);
void scatter_hsv_scatter (guchar *r, guchar *g, guchar *b);
static int randomize_value (int now,
int min,
int max,
int mod_p,
int rand_max);
void hsv_to_rgb (int *h, int *s, int *v);
void rgb_to_hsv (int *r, int *g, int *b);
static gint DIALOG ();
static void ERROR_DIALOG (gint gtk_was_not_initialized, guchar *message);
static void OK_CALLBACK (GtkWidget *widget, gpointer data);
static gint preview_event_handler (GtkWidget *widget, GdkEvent *event);
static void scatter_hsv_preview_update ();
/* gtkWrapper functions */
#define PROGRESS_UPDATE_NUM 100
#define PREVIEW_WIDTH 128
gint preview_width = PREVIEW_WIDTH;
#define PREVIEW_HEIGHT 128
gint preview_height = PREVIEW_HEIGHT;
#define ENTRY_WIDTH 100
#define SCALE_WIDTH 100
static void
gtkW_close_callback (GtkWidget *widget, gpointer data);
static GtkWidget *
gtkW_dialog_new (char *name,
GtkSignalFunc ok_callback,
GtkSignalFunc close_callback);
static GtkWidget *
gtkW_error_dialog_new (char * name);
static void
gtkW_table_add_scale_entry (GtkWidget *table,
gchar *name,
gint x,
gint y,
GtkSignalFunc scale_update,
GtkSignalFunc entry_update,
gint *value,
gdouble min,
gdouble max,
gdouble step,
gchar *buffer);
GtkWidget *gtkW_check_button_new (GtkWidget *parent,
gchar *name,
GtkSignalFunc update,
gint *value);
GtkWidget *gtkW_frame_new (GtkWidget *parent, gchar *name);
GtkWidget *gtkW_table_new (GtkWidget *parent, gint col, gint row);
GtkWidget *gtkW_hbox_new (GtkWidget *parent);
GtkWidget *gtkW_vbox_new (GtkWidget *parent);
static void scatter_hsv_iscale_update (GtkAdjustment *adjustment,
gpointer data);
static void scatter_hsv_ientry_update (GtkWidget *widget,
gpointer data);
GPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
typedef struct
{ /* gint, gdouble, and so on */
gint holdness;
gint hue_distance;
gint saturation_distance;
gint value_distance;
} ValueType;
static ValueType VALS =
{
2, 3, 10, 10
};
typedef struct
{
gint run;
} Interface;
static Interface INTERFACE = { FALSE };
gint drawable_id;
GtkWidget *preview;
gint preview_start_x = 0;
gint preview_end_x = 0;
gint preview_start_y = 0;
gint preview_end_y = 0;
guchar *preview_buffer = NULL;
gint preview_offset_x = 0;
gint preview_offset_y = 0;
gint preview_dragging = FALSE;
gint preview_drag_start_x = 0;
gint preview_drag_start_y = 0;
MAIN ()
static void
query ()
{
static GParamDef args [] =
{
{ PARAM_INT32, "run_mode", "Interactive, non-interactive"},
{ PARAM_IMAGE, "image", "Input image (not used)"},
{ PARAM_DRAWABLE, "drawable", "Input drawable"},
{ PARAM_INT32, "holdness", "convolution strength"},
{ PARAM_INT32, "hue_distance", "distribution distance on hue axis [0,255]"},
{ PARAM_INT32, "saturation_distance", "distribution distance on saturation axis [0,255]"},
{ PARAM_INT32, "value_distance", "distribution distance on value axis [0,255]"}
};
static GParamDef *return_vals = NULL;
static int nargs = sizeof (args) / sizeof (args[0]);
static int nreturn_vals = 0;
gimp_install_procedure (PLUG_IN_NAME,
"Scattering pixel values in HSV space",
"Scattering pixel values in HSV space",
"Shuji Narazaki (narazaki@InetQ.or.jp)",
"Shuji Narazaki",
"1997",
MENU_POSITION,
"RGB*",
PROC_PLUG_IN,
nargs, nreturn_vals,
args, return_vals);
}
static void
run (char *name,
int nparams,
GParam *param,
int *nreturn_vals,
GParam **return_vals)
{
static GParam values[1];
GStatusType status = STATUS_EXECUTION_ERROR;
GRunModeType run_mode;
run_mode = param[0].data.d_int32;
drawable_id = param[2].data.d_int32;
*nreturn_vals = 1;
*return_vals = values;
values[0].type = PARAM_STATUS;
values[0].data.d_status = status;
switch ( run_mode )
{
case RUN_INTERACTIVE:
gimp_get_data (PLUG_IN_NAME, &VALS);
if (!gimp_drawable_is_rgb(drawable_id))
{
scatter_hsv_error_dialog (1, (guchar *)"RGB drawable is not selected.");
return;
}
if (! DIALOG ())
return;
break;
case RUN_NONINTERACTIVE:
VALS.holdness = param[3].data.d_int32;
VALS.hue_distance = param[4].data.d_int32;
VALS.saturation_distance = param[5].data.d_int32;
VALS.value_distance = param[6].data.d_int32;
break;
case RUN_WITH_LAST_VALS:
gimp_get_data (PLUG_IN_NAME, &VALS);
break;
}
status = MAIN_FUNCTION (drawable_id);
if (run_mode != RUN_NONINTERACTIVE)
gimp_displays_flush();
if (run_mode == RUN_INTERACTIVE && status == STATUS_SUCCESS )
gimp_set_data (PLUG_IN_NAME, &VALS, sizeof (ValueType));
values[0].type = PARAM_STATUS;
values[0].data.d_status = status;
}
static GStatusType
MAIN_FUNCTION (gint32 drawable_id)
{
GDrawable *drawable;
GPixelRgn src_rgn, dest_rgn;
guchar *src, *dest;
gpointer pr;
gint x, y, x1, x2, y1, y2;
gint gap, total, processed = 0;
drawable = gimp_drawable_get (drawable_id);
gap = (gimp_drawable_has_alpha (drawable_id)) ? 1 : 0;
gimp_drawable_mask_bounds (drawable_id, &x1, &y1, &x2, &y2);
total = (x2 - x1) * (y2 - y1);
gimp_tile_cache_ntiles (2 * (drawable->width / gimp_tile_width () + 1));
gimp_pixel_rgn_init (&src_rgn, drawable, x1, y1, (x2 - x1), (y2 - y1), FALSE, FALSE);
gimp_pixel_rgn_init (&dest_rgn, drawable, x1, y1, (x2 - x1), (y2 - y1), TRUE, TRUE);
gimp_progress_init (PROGRESS_NAME);
srand (time (NULL));
pr = gimp_pixel_rgns_register (2, &src_rgn, &dest_rgn);
for (; pr != NULL; pr = gimp_pixel_rgns_process (pr))
{
int offset;
for (y = 0; y < src_rgn.h; y++)
{
src = src_rgn.data + y * src_rgn.rowstride;
dest = dest_rgn.data + y * dest_rgn.rowstride;
offset = 0;
for (x = 0; x < src_rgn.w; x++)
{
guchar h, s, v;
h = *(src + offset);
s = *(src + offset + 1);
v = *(src + offset + 2);
scatter_hsv_scatter (&h, &s, &v);
*(dest + offset ) = (guchar) h;
*(dest + offset + 1) = (guchar) s;
*(dest + offset + 2) = (guchar) v;
offset += 3;
if (gap)
{
*(dest + offset) = *(src + offset);
offset++;
}
/* the function */
if ((++processed % (total / PROGRESS_UPDATE_NUM)) == 0)
gimp_progress_update ((double)processed /(double) total);
}
}
}
gimp_progress_update (1.0);
gimp_drawable_flush (drawable);
gimp_drawable_merge_shadow (drawable->id, TRUE);
gimp_drawable_update (drawable->id, x1, y1, (x2 - x1), (y2 - y1));
gimp_drawable_detach (drawable);
return STATUS_SUCCESS;
}
static int randomize_value (int now,
int min,
int max,
int mod_p,
int rand_max)
{
int flag, new, steps, index;
double rand_val;
steps = max - min + 1;
rand_val = ((double) rand()/(double)RAND_MAX);
for (index = 1; index < VALS.holdness; index++)
{
double tmp = ((double) rand()/(double)RAND_MAX);
if (tmp < rand_val)
rand_val = tmp;
}
flag = ((RAND_MAX / 2) < rand()) ? 1 : -1;
new = now + flag * ((int) (rand_max * rand_val) % steps);
if (new < min)
{
if (mod_p == 1)
new += steps;
else
new = min;
}
if (max < new)
{
if (mod_p == 1)
new -= steps;
else
new = max;
}
return new;
}
void scatter_hsv_scatter (guchar *r, guchar *g, guchar *b)
{
int h, s, v;
int h1, s1, v1;
int h2, s2, v2;
h = *r; s = *g; v = *b;
rgb_to_hsv (&h, &s, &v);
if (0 < VALS.hue_distance)
h = randomize_value (h, 0, 255, 1, VALS.hue_distance);
if ((0 < VALS.saturation_distance))
s = randomize_value (s, 0, 255, 0, VALS.saturation_distance);
if ((0 < VALS.value_distance))
v = randomize_value (v, 0, 255, 0, VALS.value_distance);
h1 = h; s1 = s; v1 = v;
hsv_to_rgb (&h, &s, &v); /* don't believe ! */
h2 = h; s2 = s; v2 = v;
rgb_to_hsv (&h2, &s2, &v2); /* h2 should be h1. But... */
if ((abs (h1 - h2) <= VALS.hue_distance)
&& (abs (s1 - s2) <= VALS.saturation_distance)
&& (abs (v1 - v2) <= VALS.value_distance))
{
*r = h;
*g = s;
*b = v;
}
}
void
rgb_to_hsv (int *r,
int *g,
int *b)
{
int red, green, blue;
float h, s, v;
int min, max;
int delta;
h = 0.0;
red = *r;
green = *g;
blue = *b;
if (red > green)
{
if (red > blue)
max = red;
else
max = blue;
if (green < blue)
min = green;
else
min = blue;
}
else
{
if (green > blue)
max = green;
else
max = blue;
if (red < blue)
min = red;
else
min = blue;
}
v = max;
if (max != 0)
s = ((max - min) * 255) / (float) max;
else
s = 0;
if (s == 0)
h = 0;
else
{
delta = max - min;
if (red == max)
h = (green - blue) / (float) delta;
else if (green == max)
h = 2 + (blue - red) / (float) delta;
else if (blue == max)
h = 4 + (red - green) / (float) delta;
h *= 42.5;
if (h < 0)
h += 255;
if (h > 255)
h -= 255;
}
*r = h;
*g = s;
*b = v;
}
void
hsv_to_rgb (int *h,
int *s,
int *v)
{
float hue, saturation, value;
float f, p, q, t;
if (*s == 0)
{
*h = *v;
*s = *v;
*v = *v;
}
else
{
hue = *h * 6.0 / 255.0;
if (hue == 6.0)
hue = 0.0;
saturation = *s / 255.0;
value = *v / 255.0;
f = hue - (int) hue;
p = value * (1.0 - saturation);
q = value * (1.0 - (saturation * f));
t = value * (1.0 - (saturation * (1.0 - f)));
switch ((int) hue)
{
case 0:
*h = value * 255;
*s = t * 255;
*v = p * 255;
break;
case 1:
*h = q * 255;
*s = value * 255;
*v = p * 255;
break;
case 2:
*h = p * 255;
*s = value * 255;
*v = t * 255;
break;
case 3:
*h = p * 255;
*s = q * 255;
*v = value * 255;
break;
case 4:
*h = t * 255;
*s = p * 255;
*v = value * 255;
break;
case 5:
*h = value * 255;
*s = p * 255;
*v = q * 255;
break;
}
}
}
/* dialog stuff */
static int
DIALOG ()
{
GtkWidget *dlg;
GtkWidget *vbox;
GtkWidget *frame;
GtkWidget *table;
gchar **argv;
gint argc;
gint index = 0;
static gchar buffer[4][10];
argc = 1;
argv = g_new (gchar *, 1);
argv[0] = g_strdup (PLUG_IN_NAME);
gtk_init (&argc, &argv);
gtk_rc_parse (gimp_gtkrc ());
dlg = gtkW_dialog_new (PLUG_IN_NAME,
(GtkSignalFunc) OK_CALLBACK,
(GtkSignalFunc) gtkW_close_callback);
vbox = gtkW_vbox_new ((GTK_DIALOG (dlg)->vbox));
frame = gtkW_frame_new (vbox, "Parameter Settings");
table = gtkW_table_new (frame, 5, 2);
gtkW_table_add_scale_entry (table, "Holdness", 0, index,
(GtkSignalFunc) scatter_hsv_iscale_update,
(GtkSignalFunc) scatter_hsv_ientry_update,
&VALS.holdness,
1, 8, 1, buffer[index]);
index++;
gtkW_table_add_scale_entry (table, "Hue", 0, index,
(GtkSignalFunc) scatter_hsv_iscale_update,
(GtkSignalFunc) scatter_hsv_ientry_update,
&VALS.hue_distance,
0, 255, 1, buffer[index]);
index++;
gtkW_table_add_scale_entry (table, "Saturation", 0, index,
(GtkSignalFunc) scatter_hsv_iscale_update,
(GtkSignalFunc) scatter_hsv_ientry_update,
&VALS.saturation_distance,
0, 255, 1, buffer[index]);
index++;
gtkW_table_add_scale_entry (table, "Value", 0, index,
(GtkSignalFunc) scatter_hsv_iscale_update,
(GtkSignalFunc) scatter_hsv_ientry_update,
&VALS.value_distance,
0, 255,1, buffer[index]);
gtk_widget_show (table);
gtk_widget_show (frame);
frame = gtkW_frame_new (vbox, "Preview (1:4) - right click to jump");
/* preparation for preview */
gdk_set_use_xshm (gimp_use_xshm ());
gtk_preview_set_gamma (gimp_gamma ());
gtk_preview_set_install_cmap (gimp_install_cmap ());
{
guchar *color_cube;
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 ());
preview = gtk_preview_new (GTK_PREVIEW_COLOR);
{
gint width = gimp_drawable_width (drawable_id);
gint height = gimp_drawable_height (drawable_id);
preview_width = (PREVIEW_WIDTH < width) ? PREVIEW_WIDTH : width;
preview_height = (PREVIEW_HEIGHT < height) ? PREVIEW_HEIGHT : height;
}
gtk_preview_size (GTK_PREVIEW (preview), preview_width * 2, preview_height);
scatter_hsv_preview_update ();
gtk_container_add (GTK_CONTAINER (frame), preview);
gtk_widget_set_events (preview,
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_BUTTON_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK);
gtk_signal_connect (GTK_OBJECT (preview), "event",
(GtkSignalFunc) preview_event_handler,
NULL);
gtk_widget_show (preview);
gtk_widget_show (frame);
gtk_widget_show (vbox);
gtk_widget_show (dlg);
gtk_main ();
gdk_flush ();
return INTERFACE.run;
}
static void
ERROR_DIALOG (gint gtk_was_not_initialized, guchar *message)
{
GtkWidget *dlg;
GtkWidget *table;
GtkWidget *label;
gchar **argv;
gint argc;
if (gtk_was_not_initialized)
{
argc = 1;
argv = g_new (gchar *, 1);
argv[0] = g_strdup (PLUG_IN_NAME);
gtk_init (&argc, &argv);
gtk_rc_parse (gimp_gtkrc ());
}
dlg = gtkW_error_dialog_new (PLUG_IN_NAME);
table = gtk_table_new (1,1, FALSE);
gtk_container_border_width (GTK_CONTAINER (table), 10);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), table, TRUE, TRUE, 0);
label = gtk_label_new ((char *)message);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 0, 1, GTK_FILL|GTK_EXPAND,
0, 0, 0);
gtk_widget_show (label);
gtk_widget_show (table);
gtk_widget_show (dlg);
gtk_main ();
gdk_flush ();
}
static gint
preview_event_handler (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:
if (x < preview_width)
{
if (bevent->button == 3)
{
preview_offset_x = - x;
preview_offset_y = - y;
scatter_hsv_preview_update ();
}
else
{
preview_dragging = TRUE;
preview_drag_start_x = x;
preview_drag_start_y = y;
gtk_grab_add (widget);
}
}
break;
case GDK_BUTTON_RELEASE:
if (preview_dragging)
{
gtk_grab_remove (widget);
preview_dragging = FALSE;
scatter_hsv_preview_update ();
}
break;
case GDK_MOTION_NOTIFY:
if (preview_dragging)
{
dx = x - preview_drag_start_x;
dy = y - preview_drag_start_y;
preview_drag_start_x = x;
preview_drag_start_y = y;
if ((dx == 0) && (dy == 0))
break;
preview_offset_x = MAX (preview_offset_x - dx, 0);
preview_offset_y = MAX (preview_offset_y - dy, 0);
scatter_hsv_preview_update ();
}
break;
default:
break;
}
return FALSE;
}
static void
scatter_hsv_preview_update ()
{
GDrawable *drawable;
GPixelRgn src_rgn;
gint scale;
gint x, y, dx, dy;
gint bound_start_x, bound_start_y, bound_end_x, bound_end_y;
gint src_has_alpha = FALSE;
gint src_is_gray = FALSE;
gint src_bpp, src_bpl;
guchar data[3];
gdouble shift_rate;
drawable = gimp_drawable_get (drawable_id);
gimp_drawable_mask_bounds (drawable_id,
&bound_start_x, &bound_start_y,
&bound_end_x, &bound_end_y);
src_has_alpha = gimp_drawable_has_alpha (drawable_id);
src_is_gray = gimp_drawable_is_gray (drawable_id);
src_bpp = (src_is_gray ? 1 : 3) + (src_has_alpha ? 1 : 0);
src_bpl = preview_width * src_bpp;
if (! preview_buffer)
preview_buffer
= (guchar *) g_malloc (src_bpl * preview_height * sizeof (guchar));
if (preview_offset_x < 0)
preview_offset_x = (bound_end_x - bound_start_x) * (- preview_offset_x) / preview_width;
if (preview_offset_y < 0)
preview_offset_y = (bound_end_y - bound_start_y) * (- preview_offset_y) / preview_height;
preview_start_x = CLAMP (bound_start_x + preview_offset_x,
bound_start_x, MAX (bound_end_x - preview_width, 0));
preview_start_y = CLAMP (bound_start_y + preview_offset_y,
bound_start_y, MAX (bound_end_y - preview_height, 0));
if (preview_start_x == bound_start_x)
preview_offset_x = 0;
if (preview_start_y == bound_start_y)
preview_offset_y =0;
gimp_pixel_rgn_init (&src_rgn, drawable, preview_start_x, preview_start_y,
preview_width, preview_height,
FALSE, FALSE);
/* Since it's small, get whole data before processing. */
gimp_pixel_rgn_get_rect (&src_rgn, preview_buffer,
preview_start_x, preview_start_y,
preview_width, preview_height);
scale = 4;
shift_rate = (gdouble) (scale - 1) / ( 2 * scale);
for (y = 0; y < preview_height/4; y++)
{
for (x = 0; x < preview_width/4; x++)
{
gint pos;
gint i;
pos = (gint)(y + preview_height * shift_rate) * src_bpl
+ (gint)(x + preview_width * shift_rate) * src_bpp;
for (i = 0; i < src_bpp; i++)
data[i] = preview_buffer[pos + i];
scatter_hsv_scatter (data+0, data+1, data+2);
for (dy = 0; dy < scale; dy++)
for (dx = 0; dx < scale; dx++)
gtk_preview_draw_row (GTK_PREVIEW (preview), data,
preview_width + x * scale + dx,
y * scale + dy, 1);
}
}
for (y = 0; y < preview_height; y ++)
for (x = 0; x < preview_width; x++)
{
gint i;
for (i = 0; i < src_bpp; i++)
data[i] = preview_buffer[y * src_bpl + x * src_bpp + i];
scatter_hsv_scatter (data+0, data+1, data+2);
gtk_preview_draw_row (GTK_PREVIEW (preview), data, x, y, 1);
}
gtk_widget_draw (preview, NULL);
gdk_flush ();
}
static void
OK_CALLBACK (GtkWidget *widget,
gpointer data)
{
INTERFACE.run = TRUE;
gtk_widget_destroy (GTK_WIDGET (data));
}
static void
gtkW_close_callback (GtkWidget *widget,
gpointer data)
{
gtk_main_quit ();
}
/* gtkW is the abbreviation of gtk Wrapper */
static GtkWidget *
gtkW_dialog_new (char * name,
GtkSignalFunc ok_callback,
GtkSignalFunc close_callback)
{
GtkWidget *dlg, *button;
dlg = gtk_dialog_new ();
gtk_window_set_title (GTK_WINDOW (dlg), name);
gtk_window_position (GTK_WINDOW (dlg), GTK_WIN_POS_MOUSE);
gtk_signal_connect (GTK_OBJECT (dlg), "destroy",
(GtkSignalFunc) gtkW_close_callback, NULL);
/* Action Area */
button = gtk_button_new_with_label ("OK");
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_signal_connect (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) ok_callback, dlg);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->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_object (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) gtk_widget_destroy,
GTK_OBJECT(dlg));
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->action_area), button,
TRUE, TRUE, 0);
gtk_widget_show (button);
return dlg;
}
static GtkWidget *
gtkW_error_dialog_new (char * name)
{
GtkWidget *dlg, *button;
dlg = gtk_dialog_new ();
gtk_window_set_title (GTK_WINDOW (dlg), name);
gtk_window_position (GTK_WINDOW (dlg), GTK_WIN_POS_MOUSE);
gtk_signal_connect (GTK_OBJECT (dlg), "destroy",
(GtkSignalFunc) gtkW_close_callback, NULL);
/* Action Area */
button = gtk_button_new_with_label ("OK");
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_signal_connect (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) gtkW_close_callback, dlg);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->action_area), button,
TRUE, TRUE, 0);
gtk_widget_grab_default (button);
gtk_widget_show (button);
return dlg;
}
GtkWidget *
gtkW_table_new (GtkWidget *parent, gint col, gint row)
{
GtkWidget *table;
table = gtk_table_new (col,row, FALSE);
gtk_container_border_width (GTK_CONTAINER (table), 10);
gtk_container_add (GTK_CONTAINER (parent), table);
return table;
}
GtkWidget *
gtkW_hbox_new (GtkWidget *parent)
{
GtkWidget *hbox;
hbox = gtk_hbox_new (FALSE, 5);
gtk_container_border_width (GTK_CONTAINER (hbox), 5);
gtk_box_pack_start (GTK_BOX (parent), hbox, FALSE, TRUE, 0);
return hbox;
}
GtkWidget *
gtkW_vbox_new (GtkWidget *parent)
{
GtkWidget *vbox;
vbox = gtk_vbox_new (FALSE, 5);
gtk_container_border_width (GTK_CONTAINER (vbox), 10);
/* gtk_box_pack_start (GTK_BOX (parent), vbox, TRUE, TRUE, 0); */
gtk_container_add (GTK_CONTAINER (parent), vbox);
return vbox;
}
GtkWidget *
gtkW_check_button_new (GtkWidget *parent,
gchar *name,
GtkSignalFunc update,
gint *value)
{
GtkWidget *toggle;
toggle = gtk_check_button_new_with_label (name);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
(GtkSignalFunc) update,
value);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), *value);
gtk_container_add (GTK_CONTAINER (parent), toggle);
gtk_widget_show (toggle);
return toggle;
}
GtkWidget *
gtkW_frame_new (GtkWidget *parent,
gchar *name)
{
GtkWidget *frame;
frame = gtk_frame_new (name);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
gtk_container_border_width (GTK_CONTAINER (frame), 5);
gtk_box_pack_start (GTK_BOX(parent), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
return frame;
}
static void
gtkW_table_add_scale_entry (GtkWidget *table,
gchar *name,
gint x,
gint y,
GtkSignalFunc scale_update,
GtkSignalFunc entry_update,
gint *value,
gdouble min,
gdouble max,
gdouble step,
gchar *buffer)
{
GtkObject *adjustment;
GtkWidget *label, *hbox, *scale, *entry;
label = gtk_label_new (name);
gtk_misc_set_alignment (GTK_MISC(label), 0.0, 0.5);
gtk_table_attach (GTK_TABLE(table), label, x, x+1, y, y+1,
GTK_FILL|GTK_EXPAND, GTK_FILL, 5, 0);
gtk_widget_show (label);
hbox = gtk_hbox_new (FALSE, 5);
gtk_table_attach (GTK_TABLE (table), hbox, x+1, x+2, y, y+1,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
adjustment = gtk_adjustment_new (*value, min, max, step, step, 0.0);
gtk_widget_show (hbox);
scale = gtk_hscale_new (GTK_ADJUSTMENT (adjustment));
gtk_widget_set_usize (scale, SCALE_WIDTH, 0);
gtk_box_pack_start (GTK_BOX (hbox), scale, TRUE, TRUE, 0);
gtk_scale_set_value_pos (GTK_SCALE (scale), GTK_POS_TOP);
gtk_scale_set_digits (GTK_SCALE (scale), 0);
gtk_range_set_update_policy (GTK_RANGE (scale), GTK_UPDATE_DELAYED);
gtk_signal_connect (GTK_OBJECT (adjustment), "value_changed",
(GtkSignalFunc) scale_update, value);
entry = gtk_entry_new ();
gtk_object_set_user_data (GTK_OBJECT (entry), adjustment);
gtk_object_set_user_data (adjustment, entry);
gtk_box_pack_start (GTK_BOX (hbox), entry, TRUE, TRUE, 0);
gtk_widget_set_usize (entry, ENTRY_WIDTH/3, 0);
sprintf (buffer, "%d", *value);
gtk_entry_set_text (GTK_ENTRY (entry), buffer);
gtk_signal_connect (GTK_OBJECT (entry), "changed",
(GtkSignalFunc) entry_update, value);
gtk_widget_show (label);
gtk_widget_show (scale);
gtk_widget_show (entry);
}
static void
scatter_hsv_iscale_update (GtkAdjustment *adjustment,
gpointer data)
{
GtkWidget *entry;
gchar buffer[32];
int *val;
val = data;
if (*val != (int) adjustment->value)
{
*val = adjustment->value;
entry = gtk_object_get_user_data (GTK_OBJECT (adjustment));
sprintf (buffer, "%d", (int) adjustment->value);
gtk_entry_set_text (GTK_ENTRY (entry), buffer);
scatter_hsv_preview_update ();
}
}
static void
scatter_hsv_ientry_update (GtkWidget *widget,
gpointer data)
{
GtkAdjustment *adjustment;
int new_val;
int *val;
val = data;
new_val = atoi (gtk_entry_get_text (GTK_ENTRY (widget)));
if (*val != new_val)
{
adjustment = gtk_object_get_user_data (GTK_OBJECT (widget));
if ((new_val >= adjustment->lower) &&
(new_val <= adjustment->upper))
{
*val = new_val;
adjustment->value = new_val;
gtk_signal_emit_by_name (GTK_OBJECT (adjustment), "value_changed");
scatter_hsv_preview_update ();
}
}
}
/* end of scatter_hsv.c */
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