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gimp/plug-ins/common/wind.c

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/*
* wind - a plug-in for the GIMP
*
* Copyright (C) Nigel Wetten
*
* 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.
*
* Contact info: nigel@cs.nwu.edu
*
* Version: 1.0.0
*/
#include <stdio.h>
#include <stdlib.h>
#include <gtk/gtk.h>
#include "libgimp/gimp.h"
#define PLUG_IN_NAME "wind"
#define COMPARE_WIDTH 3
#define ENTRY_WIDTH 40
#define SCALE_WIDTH 200
#define MIN_THRESHOLD 0
#define MAX_THRESHOLD 50
#define MIN_STRENGTH 1
#define MAX_STRENGTH 50
#define NEGATIVE_STRENGTH_TEXT "\n Wind Strength must be greater than 0. \n"
#define THRESHOLD_TEXT "Higher values restrict the effect to fewer areas of the image"
#define STRENGTH_TEXT "Higher values increase the magnitude of the effect"
#define WIND_TEXT "A fine grained algorithm"
#define BLAST_TEXT "A coarse grained algorithm"
#define LEFT_TEXT "Makes the wind come from the left"
#define RIGHT_TEXT "Makes the wind come from the right"
#define LEADING_TEXT "The effect is applied at the leading edge of objects"
#define TRAILING_TEXT "The effect is applied at the trailing edge of objects"
#define BOTH_TEXT "The effect is applied at both edges of objects"
typedef enum {LEFT, RIGHT} direction_t;
typedef enum {RENDER_WIND, RENDER_BLAST} algorithm_t;
typedef enum {BOTH, LEADING, TRAILING} edge_t;
static void query(void);
static void run(char *name, int nparams, GParam *param,
int *nreturn_vals, GParam **return_vals);
static void dialog_box(void);
static gint render_effect(GDrawable *drawable);
static void render_wind(GDrawable *drawable, gint threshold, gint strength,
direction_t direction, edge_t edge);
static void render_blast(GDrawable *drawable, gint threshold, gint strength,
direction_t direction, edge_t edge);
static gint render_blast_row(guchar *buffer, gint bytes, gint lpi, gint threshold,
gint strength, edge_t edge);
static void render_wind_row(guchar *sb, gint bytes, gint lpi, gint threshold,
gint strength, edge_t edge);
static void msg_ok_callback(GtkWidget *widget, gpointer data);
static void msg_close_callback(GtkWidget *widget, gpointer data);
static void close_callback(GtkWidget *widget, gpointer data);
static void ok_callback(GtkWidget *widget, gpointer data);
static void entry_callback(GtkWidget *widget, gpointer data);
static void radio_button_alg_callback(GtkWidget *widget, gpointer data);
static void radio_button_direction_callback(GtkWidget *widget, gpointer data);
static void get_derivative(guchar *pixel_R1, guchar *pixel_R2,
edge_t edge, gint *derivative_R,
gint *derivative_G, gint *derivative_B);
static gint threshold_exceeded(guchar *pixel_R1, guchar *pixel_R2,
edge_t edge, gint threshold);
static void reverse_buffer(guchar *buffer, gint length, gint bytes);
static void modal_message_box(gchar *text);
GPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run /* run_proc */
};
/*********************
Globals
*******************/
/* This is needed to communicate the result from the dialog
box button's callback function*/
gint dialog_result = -1;
struct config_tag
{
gint threshold; /* derivative comparison for edge detection */
direction_t direction; /* of wind, LEFT or RIGHT */
gint strength; /* how many pixels to bleed */
algorithm_t alg; /* which algorithm */
edge_t edge; /* controls abs, negation of derivative */
};
typedef struct config_tag config_t;
config_t config =
{
10, /* threshold for derivative edge detection */
LEFT, /* bleed to the right */
10, /* how many pixels to bleed */
RENDER_WIND, /* default algorithm */
LEADING /* abs(derivative); */
};
MAIN()
static void
query(void)
{
static GParamDef args[] =
{
{PARAM_INT32, "run_mode", "Interactive, non-interactive"},
{PARAM_IMAGE, "image", "Input image (unused)"},
{PARAM_DRAWABLE, "drawable", "Input drawable"},
{PARAM_INT32, "threshold", "Controls where blending will be done >= 0"},
{PARAM_INT32, "direction", "Left or Right: 0 or 1"},
{PARAM_INT32, "strength", "Controls the extent of the blending > 1"},
{PARAM_INT32, "alg", "WIND, BLAST"},
{PARAM_INT32, "edge", "LEADING, TRAILING, or BOTH"}
};
static GParamDef *return_vals = NULL;
static int nargs = sizeof(args) / sizeof(args[0]);
static int nreturn_vals = 0;
gimp_install_procedure("plug_in_wind",
"Renders a wind effect.",
"Renders a wind effect.",
"Nigel Wetten",
"Nigel Wetten",
"1998",
"<Image>/Filters/Distorts/Wind",
"RGB*",
PROC_PLUG_IN,
nargs, nreturn_vals,
args, return_vals);
return;
} /* query */
/*****/
static void
run(gchar *name, gint nparams, GParam *param, gint *nreturn_vals,
GParam **return_vals)
{
static GParam values[1];
GDrawable *drawable;
GRunModeType run_mode;
GStatusType status = STATUS_SUCCESS;
run_mode = param[0].data.d_int32;
drawable = gimp_drawable_get(param[2].data.d_drawable);
gimp_tile_cache_ntiles(2 * (drawable->width / gimp_tile_width() + 1));
switch (run_mode)
{
case RUN_NONINTERACTIVE:
if (nparams == 8)
{
config.threshold = param[3].data.d_int32;
config.direction = param[4].data.d_int32;
config.strength = param[5].data.d_int32;
config.alg = param[6].data.d_int32;
config.edge = param[7].data.d_int32;
if (render_effect(drawable) == -1)
{
status = STATUS_EXECUTION_ERROR;
}
}
else
{
status = STATUS_CALLING_ERROR;
}
break;
case RUN_INTERACTIVE:
gimp_get_data("plug_in_wind", &config);
dialog_box();
if (dialog_result == -1)
{
status = STATUS_EXECUTION_ERROR;
break;
}
if (render_effect(drawable) == -1)
{
status = STATUS_CALLING_ERROR;
break;
}
gimp_set_data("plug_in_wind", &config, sizeof(config_t));
gimp_displays_flush();
break;
case RUN_WITH_LAST_VALS:
gimp_get_data("plug_in_wind", &config);
if (render_effect(drawable) == -1)
{
status = STATUS_EXECUTION_ERROR;
gimp_message("An execution error occured.");
}
else
{
gimp_displays_flush();
}
} /* switch */
gimp_drawable_detach(drawable);
*nreturn_vals = 1;
*return_vals = values;
values[0].type = PARAM_STATUS;
values[0].data.d_status = status;
return;
} /* run */
/*****/
static gint
render_effect(GDrawable *drawable)
{
if (config.alg == RENDER_WIND)
{
gimp_progress_init("Rendering Wind...");
render_wind(drawable, config.threshold, config. strength,
config.direction, config.edge);
}
else if (config.alg == RENDER_BLAST)
{
gimp_progress_init("Rendering Blast...");
render_blast(drawable, config.threshold, config.strength,
config.direction, config.edge);
}
return 0;
} /* render_effect */
/*****/
static void
render_blast(GDrawable *drawable, gint threshold, gint strength,
direction_t direction, edge_t edge)
{
gint x1, x2, y1, y2;
gint width = drawable->width;
gint height = drawable->height;
gint bytes = drawable->bpp;
guchar *buffer;
GPixelRgn src_region, dest_region;
gint row;
gint row_stride = width * bytes;
gint marker = 0;
gint lpi = row_stride - bytes;
gimp_drawable_mask_bounds(drawable->id, &x1, &y1, &x2, &y2);
gimp_pixel_rgn_init(&src_region, drawable, 0, 0, width, height, FALSE, FALSE);
gimp_pixel_rgn_init(&dest_region, drawable, 0, 0, width, height, TRUE, TRUE);
buffer = malloc(row_stride);
for (row = y1; row < y2; row++)
{
gimp_pixel_rgn_get_row(&src_region, buffer, x1, row, width);
if (direction == RIGHT)
{
reverse_buffer(buffer, row_stride, bytes);
}
marker = render_blast_row(buffer, bytes, lpi, threshold, strength, edge);
if (direction == RIGHT)
{
reverse_buffer(buffer, row_stride, bytes);
}
gimp_pixel_rgn_set_row(&dest_region, buffer, x1, row, width);
gimp_progress_update((double) row / (double) (y2 - y1));
if (marker)
{
gint j, limit;
limit = 1 + rand() % 2;
for (j = 0; (j < limit) && (row < y2); j++)
{
row++;
if (row < y2)
{
gimp_pixel_rgn_get_row(&src_region, buffer, x1, row, width);
gimp_pixel_rgn_set_row(&dest_region, buffer, x1, row, width);
}
}
marker = 0;
}
} /* for */
free(buffer);
/* update the region */
gimp_drawable_flush(drawable);
gimp_drawable_merge_shadow(drawable->id, TRUE);
gimp_drawable_update(drawable->id, x1, y1, x2 - x1, y2 - y1);
return;
} /* render_blast */
/*****/
static void
render_wind(GDrawable *drawable, gint threshold, gint strength,
direction_t direction, edge_t edge)
{
GPixelRgn src_region, dest_region;
gint width = drawable->width;
gint height = drawable->height;
gint bytes = drawable->bpp;
gint row_stride = width * bytes;
gint comp_stride = bytes * COMPARE_WIDTH;
gint row;
guchar *sb;
gint lpi = row_stride - comp_stride;
gint x1, y1, x2, y2;
gimp_drawable_mask_bounds(drawable->id, &x1, &y1, &x2, &y2);
gimp_pixel_rgn_init(&src_region, drawable, 0, 0, width, height,
FALSE, FALSE);
gimp_pixel_rgn_init(&dest_region, drawable, 0, 0, width, height, TRUE, TRUE);
sb = g_malloc(row_stride);
for (row = y1; row < y2; row++)
{
gimp_pixel_rgn_get_row(&src_region, sb, x1, row, width);
if (direction == RIGHT)
{
reverse_buffer(sb, row_stride, bytes);
}
render_wind_row(sb, bytes, lpi, threshold, strength, edge);
if (direction == RIGHT)
{
reverse_buffer(sb, row_stride, bytes);
}
gimp_pixel_rgn_set_row(&dest_region, sb, x1, row, width);
gimp_progress_update((gdouble) row / (gdouble) (y2 - y1));
}
free(sb);
gimp_drawable_flush(drawable);
gimp_drawable_merge_shadow(drawable->id, TRUE);
gimp_drawable_update(drawable->id, x1, y1, x2 - x1, y2 - y1);
return;
} /* render_wind */
/*****/
static gint
render_blast_row(guchar *buffer, gint bytes, gint lpi, gint threshold,
gint strength, edge_t edge)
{
gint Ri, Gi, Bi;
gint sbi, lbi;
gint bleed_length;
gint i, j;
gint weight, random_factor;
gint skip = 0;
for (j = 0; j < lpi; j += bytes)
{
Ri = j; Gi = j + 1; Bi = j + 2;
if (threshold_exceeded(buffer+Ri, buffer+Ri+bytes, edge, threshold))
{
/* we have found an edge, do bleeding */
sbi = Ri;
weight = rand() % 10;
if (weight > 5)
{
random_factor = 2;
}
else if (weight > 3)
{
random_factor = 3;
}
else
{
random_factor = 4;
}
bleed_length = 0;
switch (rand() % random_factor)
{
case 3:
bleed_length += strength;
/* fall through to add up multiples of strength */
case 2:
bleed_length += strength;
/* fall through */
case 1:
bleed_length += strength;
/* fall through */
case 0:
bleed_length += strength;
/* fall through */
}
lbi = sbi + bytes * bleed_length;
if (lbi > lpi)
{
lbi = lpi;
}
for (i = sbi; i < lbi; i += bytes)
{
buffer[i] = buffer[Ri];
buffer[i+1] = buffer[Gi];
buffer[i+2] = buffer[Bi];
}
j = lbi - bytes;
if ((rand() % 10) > 7)
{
skip = 1;
}
} /* if */
} /* for j=0 */
return skip;
} /* render_blast_row */
/*****/
static void
render_wind_row(guchar *sb, gint bytes, gint lpi, gint threshold,
gint strength, edge_t edge)
{
gint i, j;
gint bleed_length;
gint blend_amt_R, blend_amt_G, blend_amt_B;
gint blend_colour_R, blend_colour_G, blend_colour_B;
gint target_colour_R, target_colour_G, target_colour_B;
gdouble bleed_length_max;
gint bleed_variation;
gint n;
gint sbi; /* starting bleed index */
gint lbi; /* last bleed index */
gdouble denominator;
gint comp_stride = bytes * COMPARE_WIDTH;
for (j = 0; j < lpi; j += bytes)
{
gint Ri = j;
gint Gi = j + 1;
gint Bi = j + 2;
if (threshold_exceeded(sb+Ri, sb+Ri+comp_stride, edge, threshold))
{
/* we have found an edge, do bleeding */
sbi = Ri + comp_stride;
blend_colour_R = sb[Ri];
blend_colour_G = sb[Gi];
blend_colour_B = sb[Bi];
target_colour_R = sb[sbi];
target_colour_G = sb[sbi+1];
target_colour_B = sb[sbi+2];
bleed_length_max = strength;
if (rand() % 3) /* introduce weighted randomness */
{
bleed_length_max = strength;
}
else
{
bleed_length_max = 4 * strength;
}
bleed_variation = 1
+ (gint) (bleed_length_max * rand() / (RAND_MAX + 1.0));
lbi = sbi + bleed_variation * bytes;
if (lbi > lpi)
{
lbi = lpi; /* stop overunning the buffer */
}
bleed_length = bleed_variation;
blend_amt_R = target_colour_R - blend_colour_R;
blend_amt_G = target_colour_G - blend_colour_G;
blend_amt_B = target_colour_B - blend_colour_B;
denominator = bleed_length * bleed_length + bleed_length;
denominator = 2.0 / denominator;
n = bleed_length;
for (i = sbi; i < lbi; i += bytes)
{
/* check against original colour */
if (!threshold_exceeded(sb+Ri, sb+i, edge, threshold)
&& (rand() % 2))
{
break;
}
blend_colour_R += blend_amt_R * n * denominator;
blend_colour_G += blend_amt_G * n * denominator;
blend_colour_B += blend_amt_B * n * denominator;
if (blend_colour_R > 255) blend_colour_R = 255;
else if (blend_colour_R < 0) blend_colour_R = 0;
if (blend_colour_G > 255) blend_colour_G = 255;
else if (blend_colour_G < 0) blend_colour_G = 0;
if (blend_colour_B > 255) blend_colour_B = 255;
else if (blend_colour_B < 0) blend_colour_B = 0;
sb[i] = (blend_colour_R * 2 + sb[i]) / 3;
sb[i+1] = (blend_colour_G * 2 + sb[i+1]) / 3;
sb[i+2] = (blend_colour_B * 2 + sb[i+2]) / 3;
if (threshold_exceeded(sb+i, sb+i+comp_stride, BOTH,
threshold))
{
target_colour_R = sb[i+comp_stride];
target_colour_G = sb[i+comp_stride+1];
target_colour_B = sb[i+comp_stride+2];
blend_amt_R = target_colour_R - blend_colour_R;
blend_amt_G = target_colour_G - blend_colour_G;
blend_amt_B = target_colour_B - blend_colour_B;
denominator = n * n + n;
denominator = 2.0 / denominator;
}
n--;
}
} /* if */
} /* for j=0 */
return;
} /* render_wind_row */
/*****/
static gint
threshold_exceeded(guchar *pixel_R1, guchar *pixel_R2, edge_t edge,
gint threshold)
{
gint derivative_R, derivative_G, derivative_B;
gint return_value;
get_derivative(pixel_R1, pixel_R2, edge,
&derivative_R, &derivative_G, &derivative_B);
if(((derivative_R + derivative_G + derivative_B) / 3) > threshold)
{
return_value = 1;
}
else
{
return_value = 0;
}
return return_value;
} /* threshold_exceeded */
/*****/
static void
get_derivative(guchar *pixel_R1, guchar *pixel_R2, edge_t edge,
gint *derivative_R, gint *derivative_G, gint *derivative_B)
{
guchar *pixel_G1 = pixel_R1 + 1;
guchar *pixel_B1 = pixel_R1 + 2;
guchar *pixel_G2 = pixel_R2 + 1;
guchar *pixel_B2 = pixel_R2 + 2;
*derivative_R = *pixel_R2 - *pixel_R1;
*derivative_G = *pixel_G2 - *pixel_G1;
*derivative_B = *pixel_B2 - *pixel_B1;
if (edge == BOTH)
{
*derivative_R = abs(*derivative_R);
*derivative_G = abs(*derivative_G);
*derivative_B = abs(*derivative_B);
}
else if (edge == LEADING)
{
*derivative_R = -(*derivative_R);
*derivative_G = -(*derivative_G);
*derivative_B = -(*derivative_B);
}
else if (edge == TRAILING)
{
/* no change needed */
}
return;
} /* get_derivative */
/*****/
static void
reverse_buffer(guchar *buffer, gint length, gint bytes)
{
gint i, si;
gint temp;
gint midpoint;
midpoint = length / 2;
for (i = 0; i < midpoint; i += bytes)
{
si = length - bytes - i;
temp = buffer[i];
buffer[i] = buffer[si];
buffer[si] = (guchar) temp;
temp = buffer[i+1];
buffer[i+1] = buffer[si+1];
buffer[si+1] = (guchar) temp;
temp = buffer[i+2];
buffer[i+2] = buffer[si+2];
buffer[si+2] = (guchar) temp;
}
return;
} /* reverse_buffer */
/*****/
/***************************************************
GUI
***************************************************/
static void
msg_ok_callback(GtkWidget *widget, gpointer data)
{
gtk_grab_remove(GTK_WIDGET(data));
gtk_widget_destroy(GTK_WIDGET(data));
return;
} /* msg_ok_callback */
/*****/
static void
msg_close_callback(GtkWidget *widget, gpointer data)
{
return;
} /* msg_close_callback */
/*****/
static void
modal_message_box(gchar *text)
{
GtkWidget *message_box;
GtkWidget *button;
GtkWidget *label;
message_box = gtk_dialog_new();
gtk_window_set_title(GTK_WINDOW(message_box), "Ooops!");
gtk_window_position(GTK_WINDOW(message_box), GTK_WIN_POS_MOUSE);
gtk_signal_connect(GTK_OBJECT(message_box), "destroy",
(GtkSignalFunc) msg_close_callback, NULL);
label = gtk_label_new(text);
gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
gtk_box_pack_start(GTK_BOX(GTK_DIALOG(message_box)->vbox), label,
TRUE, TRUE, 0);
gtk_widget_show(label);
button = gtk_button_new_with_label("OK");
GTK_WIDGET_SET_FLAGS(button, GTK_CAN_DEFAULT);
gtk_signal_connect(GTK_OBJECT(button), "clicked",
(GtkSignalFunc) msg_ok_callback, message_box);
gtk_box_pack_start(GTK_BOX(GTK_DIALOG(message_box)->action_area),
button, TRUE, TRUE, 0);
gtk_widget_grab_default(button);
gtk_widget_show(button);
gtk_grab_add(message_box);
gtk_widget_show(message_box);
return;
} /* modal_message_box */
/*****/
static void
close_callback(GtkWidget *widget, gpointer data)
{
gtk_main_quit();
return;
} /* close_callback */
/*****/
static void
ok_callback(GtkWidget *widget, gpointer data)
{
/* we have to stop the dialog from being closed with strength < 1 */
if (config.strength < 1)
{
modal_message_box(NEGATIVE_STRENGTH_TEXT);
}
else
{
dialog_result = 1;
gtk_widget_destroy(GTK_WIDGET(data));
}
return;
} /* ok_callback */
/*****/
static void
entry_callback(GtkWidget *widget, gpointer data)
{
GtkAdjustment *adjustment;
gint new_value;
new_value = atoi(gtk_entry_get_text(GTK_ENTRY(widget)));
if (*(gint *) data != new_value)
{
*(gint *) data = new_value;
adjustment = gtk_object_get_user_data(GTK_OBJECT(widget));
if ((new_value >= adjustment-> lower)
&& (new_value <= adjustment->upper))
{
adjustment->value = new_value;
gtk_signal_handler_block_by_data(GTK_OBJECT(adjustment), data);
gtk_signal_emit_by_name(GTK_OBJECT(adjustment), "value_changed");
gtk_signal_handler_unblock_by_data(GTK_OBJECT(adjustment), data);
}
}
return;
} /* entry_callback */
/*****/
static void
radio_button_alg_callback(GtkWidget *widget, gpointer data)
{
if (GTK_TOGGLE_BUTTON (widget)->active) /* button is TRUE, i.e. checked */
{
config.alg = (algorithm_t) data;
}
return;
} /* radio_button_alg_callback */
/*****/
static void
radio_button_direction_callback(GtkWidget *widget, gpointer data)
{
if (GTK_TOGGLE_BUTTON (widget)->active) /* button is checked */
{
config.direction = (direction_t) data;
}
return;
} /* radio_button_direction_callback */
/*****/
static void
radio_button_edge_callback(GtkWidget *widget, gpointer data)
{
if (GTK_TOGGLE_BUTTON (widget)->active) /* button is selected */
{
config.edge = (edge_t) data;
}
return;
} /* radio_button_edge_callback */
/*****/
static void
adjustment_callback(GtkAdjustment *adjustment, gpointer data)
{
GtkWidget *entry;
gchar buffer[50];
if (*(gint *)data != adjustment->value)
{
*(gint *) data = adjustment->value;
entry = gtk_object_get_user_data(GTK_OBJECT(adjustment));
sprintf(buffer, "%d", *(gint *) data);
gtk_signal_handler_block_by_data(GTK_OBJECT(entry), data);
gtk_entry_set_text(GTK_ENTRY(entry), buffer);
gtk_signal_handler_unblock_by_data(GTK_OBJECT(entry), data);
}
return;
} /* adjustment_callback */
/*****/
static void
dialog_box(void)
{
GtkWidget *table;
GtkWidget *outer_table;
GtkObject *adjustment;
GtkWidget *scale;
GtkWidget *rbutton;
GSList *list;
gchar *text_label;
GtkWidget *frame;
GtkWidget *outer_frame;
GtkWidget *dlg;
GtkWidget *button;
GtkWidget *label;
GtkWidget *entry;
gchar buffer[12];
gchar **argv;
gint argc;
GtkTooltips *tooltips;
GdkColor tips_fg, tips_bg;
argc = 1;
argv = g_new(gchar *, 1);
argv[0] = g_strdup(PLUG_IN_NAME);
gtk_init(&argc, &argv);
gtk_rc_parse(gimp_gtkrc());
dlg = gtk_dialog_new();
gtk_window_set_title(GTK_WINDOW(dlg), PLUG_IN_NAME);
gtk_window_position(GTK_WINDOW(dlg), GTK_WIN_POS_MOUSE);
gtk_signal_connect(GTK_OBJECT(dlg),
"destroy", (GtkSignalFunc) 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);
/* init tooltips */
tooltips = gtk_tooltips_new();
tips_fg.red = 0;
tips_fg.green = 0;
tips_fg.blue = 0;
gdk_color_alloc(gtk_widget_get_colormap(dlg), &tips_fg);
tips_bg.red = 61669;
tips_bg.green = 59113;
tips_bg.blue = 35979;
gdk_color_alloc(gtk_widget_get_colormap(dlg), &tips_bg);
gtk_tooltips_set_colors(tooltips, &tips_bg, &tips_fg);
/****************************************************
frame for sliders
****************************************************/
frame = gtk_frame_new(NULL);
gtk_frame_set_shadow_type(GTK_FRAME(frame), GTK_SHADOW_ETCHED_IN);
gtk_container_border_width(GTK_CONTAINER(frame), 10);
gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dlg)->vbox), frame, TRUE, TRUE, 0);
table = gtk_table_new(3, 2, FALSE);
gtk_container_border_width(GTK_CONTAINER(table), 10);
gtk_container_add(GTK_CONTAINER(frame), table);
/*****************************************************
slider and entry for threshold
***************************************************/
label = gtk_label_new("Threshold:");
gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
gtk_table_attach(GTK_TABLE(table), label, 0, 1, 0, 1, GTK_FILL, 0, 0, 0);
gtk_widget_show(label);
adjustment = gtk_adjustment_new(config.threshold, MIN_THRESHOLD,
MAX_THRESHOLD, 1.0, 1.0, 0);
gtk_signal_connect(GTK_OBJECT(adjustment), "value_changed",
(GtkSignalFunc) adjustment_callback,
&config.threshold);
scale = gtk_hscale_new(GTK_ADJUSTMENT(adjustment));
gtk_widget_set_usize(scale, SCALE_WIDTH, 0);
gtk_table_attach(GTK_TABLE(table), scale, 1, 2, 0, 1, GTK_FILL, 0, 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);
gtk_tooltips_set_tip(tooltips, scale, THRESHOLD_TEXT, NULL);
entry = gtk_entry_new();
gtk_object_set_user_data(GTK_OBJECT(entry), adjustment);
gtk_object_set_user_data(GTK_OBJECT(adjustment), entry);
gtk_widget_set_usize(entry, ENTRY_WIDTH, 0);
sprintf(buffer, "%i", config.threshold);
gtk_entry_set_text(GTK_ENTRY(entry), buffer);
gtk_signal_connect(GTK_OBJECT(entry), "changed",
GTK_SIGNAL_FUNC(entry_callback),
(gpointer) &config.threshold);
gtk_table_attach(GTK_TABLE(table), entry, 2, 3, 0, 1, GTK_FILL, 0, 0, 0);
gtk_widget_show(entry);
gtk_tooltips_set_tip(tooltips, entry, THRESHOLD_TEXT, NULL);
/*****************************************************
slider and entry for strength of wind
****************************************************/
label = gtk_label_new("Strength:");
gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
gtk_table_attach(GTK_TABLE(table), label, 0, 1, 1, 2, GTK_FILL, 0, 0, 0);
gtk_widget_show(label);
adjustment = gtk_adjustment_new(config.strength, MIN_STRENGTH,
MAX_STRENGTH, 1.0, 1.0, 0);
gtk_signal_connect(GTK_OBJECT(adjustment), "value_changed",
(GtkSignalFunc) adjustment_callback,
&config.strength);
scale = gtk_hscale_new(GTK_ADJUSTMENT(adjustment));
gtk_widget_set_usize(scale, SCALE_WIDTH, 0);
gtk_table_attach(GTK_TABLE(table), scale, 1, 2, 1, 2, GTK_FILL, 0, 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);
gtk_tooltips_set_tip(tooltips, scale, STRENGTH_TEXT, NULL);
entry = gtk_entry_new();
gtk_object_set_user_data(GTK_OBJECT(entry), adjustment);
gtk_object_set_user_data(GTK_OBJECT(adjustment), entry);
gtk_widget_set_usize(entry, ENTRY_WIDTH, 0);
sprintf(buffer, "%i", config.strength);
gtk_entry_set_text(GTK_ENTRY(entry), buffer);
gtk_signal_connect(GTK_OBJECT(entry), "changed",
GTK_SIGNAL_FUNC(entry_callback),
(gpointer) &config.strength);
gtk_table_attach(GTK_TABLE(table), entry, 2, 3, 1, 2, GTK_FILL, 0, 0, 0);
gtk_widget_show(entry);
gtk_tooltips_set_tip(tooltips, entry, STRENGTH_TEXT, NULL);
gtk_widget_show(table);
gtk_widget_show(frame);
/*****************************************************
outer frame and table
***************************************************/
outer_frame = gtk_frame_new(NULL);
gtk_frame_set_shadow_type(GTK_FRAME(outer_frame), GTK_SHADOW_NONE);
gtk_container_border_width(GTK_CONTAINER(outer_frame), 10);
gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dlg)->vbox), outer_frame,
TRUE, TRUE, 0);
outer_table = gtk_table_new(3, 3, FALSE);
gtk_container_border_width(GTK_CONTAINER(outer_table), 0);
gtk_table_set_col_spacings(GTK_TABLE(outer_table), 10);
gtk_container_add(GTK_CONTAINER(outer_frame), outer_table);
/*********************************************************
radio buttons for choosing wind rendering algorithm
******************************************************/
frame = gtk_frame_new("Style");
gtk_frame_set_shadow_type(GTK_FRAME(frame), GTK_SHADOW_ETCHED_IN);
gtk_container_border_width(GTK_CONTAINER(frame), 0);
gtk_table_attach(GTK_TABLE(outer_table), frame, 0, 1, 0, 3,
GTK_FILL | GTK_EXPAND, GTK_FILL | GTK_EXPAND, 0, 0);
table = gtk_table_new(3, 2, FALSE);
gtk_container_border_width(GTK_CONTAINER(table), 10);
gtk_container_add(GTK_CONTAINER(frame), table);
text_label = "Wind";
rbutton = gtk_radio_button_new_with_label(NULL, text_label);
list = gtk_radio_button_group((GtkRadioButton *) rbutton);
gtk_toggle_button_set_active((GtkToggleButton *) rbutton,
config.alg == RENDER_WIND ? TRUE : FALSE);
gtk_signal_connect(GTK_OBJECT(rbutton), "toggled",
GTK_SIGNAL_FUNC (radio_button_alg_callback),
(gpointer) RENDER_WIND);
gtk_table_attach(GTK_TABLE(table), rbutton, 0, 1, 0, 1, GTK_FILL, 0, 0, 0);
gtk_widget_show(rbutton);
gtk_tooltips_set_tip(tooltips, rbutton, WIND_TEXT, NULL);
text_label = "Blast";
rbutton = gtk_radio_button_new_with_label(list, text_label);
list = gtk_radio_button_group((GtkRadioButton *) rbutton);
gtk_toggle_button_set_active((GtkToggleButton *) rbutton,
config.alg == RENDER_BLAST ? TRUE : FALSE);
gtk_signal_connect(GTK_OBJECT(rbutton), "toggled",
GTK_SIGNAL_FUNC (radio_button_alg_callback),
(gpointer) RENDER_BLAST);
gtk_table_attach(GTK_TABLE(table), rbutton, 0, 1, 1, 2, GTK_FILL, 0, 0, 0);
gtk_widget_show(rbutton);
gtk_tooltips_set_tip(tooltips, rbutton, BLAST_TEXT, NULL);
gtk_widget_show(table);
gtk_widget_show(frame);
/******************************************************
radio buttons for choosing LEFT or RIGHT
**************************************************/
frame = gtk_frame_new("Direction");
gtk_frame_set_shadow_type(GTK_FRAME(frame), GTK_SHADOW_ETCHED_IN);
gtk_container_border_width(GTK_CONTAINER(frame), 0);
gtk_table_attach(GTK_TABLE(outer_table), frame, 1, 2, 0, 3,
GTK_FILL | GTK_EXPAND, GTK_FILL | GTK_EXPAND, 0, 0);
table = gtk_table_new(1, 2, FALSE);
gtk_container_border_width(GTK_CONTAINER(table), 10);
gtk_container_add(GTK_CONTAINER(frame), table);
rbutton = gtk_radio_button_new_with_label(NULL, "Left");
list = gtk_radio_button_group((GtkRadioButton *) rbutton);
gtk_toggle_button_set_active((GtkToggleButton *) rbutton,
config.direction == LEFT ? TRUE : FALSE);
gtk_signal_connect(GTK_OBJECT(rbutton), "toggled",
GTK_SIGNAL_FUNC(radio_button_direction_callback),
(gpointer) LEFT);
gtk_table_attach(GTK_TABLE(table), rbutton, 0, 1, 0, 1, GTK_FILL, 0, 0, 0);
gtk_widget_show(rbutton);
gtk_tooltips_set_tip(tooltips, rbutton, LEFT_TEXT, NULL);
rbutton = gtk_radio_button_new_with_label(list, "Right");
gtk_toggle_button_set_active((GtkToggleButton *) rbutton,
config.direction == RIGHT ? TRUE : FALSE);
gtk_signal_connect(GTK_OBJECT(rbutton), "toggled",
GTK_SIGNAL_FUNC(radio_button_direction_callback),
(gpointer) RIGHT);
gtk_table_attach(GTK_TABLE(table), rbutton, 0, 1, 1, 2, GTK_FILL, 0, 0, 0);
gtk_widget_show(rbutton);
gtk_tooltips_set_tip(tooltips, rbutton, RIGHT_TEXT, NULL);
gtk_widget_show(table);
gtk_widget_show(frame);
/*****************************************************
radio buttons for choosing BOTH, LEADING, TRAILING
***************************************************/
frame = gtk_frame_new("Edge affected");
gtk_frame_set_shadow_type(GTK_FRAME(frame), GTK_SHADOW_ETCHED_IN);
gtk_container_border_width(GTK_CONTAINER(frame), 0);
gtk_table_attach(GTK_TABLE(outer_table), frame, 2, 3, 0, 3,
GTK_FILL | GTK_EXPAND, GTK_FILL | GTK_EXPAND, 0, 0);
table = gtk_table_new(1, 3, FALSE);
gtk_container_border_width(GTK_CONTAINER(table), 10);
gtk_container_add(GTK_CONTAINER(frame), table);
rbutton = gtk_radio_button_new_with_label(NULL, "Leading");
list = gtk_radio_button_group((GtkRadioButton *) rbutton);
gtk_toggle_button_set_active((GtkToggleButton *) rbutton,
config.edge == LEADING ? TRUE : FALSE);
gtk_signal_connect(GTK_OBJECT(rbutton), "toggled",
GTK_SIGNAL_FUNC(radio_button_edge_callback),
(gpointer) LEADING);
gtk_table_attach(GTK_TABLE(table), rbutton, 0, 1, 0, 1, GTK_FILL, 0, 0, 0);
gtk_widget_show(rbutton);
gtk_tooltips_set_tip(tooltips, rbutton, LEADING_TEXT, NULL);
rbutton = gtk_radio_button_new_with_label(list, "Trailing");
list = gtk_radio_button_group((GtkRadioButton *) rbutton);
gtk_toggle_button_set_active((GtkToggleButton *) rbutton,
config.edge == TRAILING ? TRUE : FALSE);
gtk_signal_connect(GTK_OBJECT(rbutton), "toggled",
GTK_SIGNAL_FUNC(radio_button_edge_callback),
(gpointer) TRAILING);
gtk_table_attach(GTK_TABLE(table), rbutton, 0, 1, 1, 2, GTK_FILL, 0, 0, 0);
gtk_widget_show(rbutton);
gtk_tooltips_set_tip(tooltips, rbutton, TRAILING_TEXT, NULL);
rbutton = gtk_radio_button_new_with_label(list, "Both");
gtk_toggle_button_set_active((GtkToggleButton *) rbutton,
config.edge == BOTH ? TRUE : FALSE);
gtk_signal_connect(GTK_OBJECT(rbutton), "toggled",
GTK_SIGNAL_FUNC(radio_button_edge_callback),
(gpointer) BOTH);
gtk_table_attach(GTK_TABLE(table), rbutton, 0, 1, 2, 3, GTK_FILL, 0, 0, 0);
gtk_widget_show(rbutton);
gtk_tooltips_set_tip(tooltips, rbutton, BOTH_TEXT, NULL);
gtk_widget_show(table);
gtk_widget_show(frame);
gtk_widget_show(outer_table);
gtk_widget_show(outer_frame);
gtk_widget_show(dlg);
gtk_main();
gdk_flush();
return;
}
/*****/
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