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gimp/plug-ins/common/wind.c
Michael Natterer b10adabb5e Added parent window API to the GimpProgress interface and to the libgimp 
2005-09-09  Michael Natterer  <mitch@gimp.org>

	Added parent window API to the GimpProgress interface and to
	the libgimp progress stuff. Might look strange, but does
	the right thing in almost all cases (image window, file dialog,
	script-fu dialog etc). Fixes bug #62988.

	* app/core/gimpprogress.[ch]: added GimpProgress::get_window()
	which should return a toplevel window ID if the progress is in a
	window that wants to be the transient parent of plug-in dialogs.

	* app/widgets/gimpwidgets-utils.[ch] (gimp_window_get_native): new
	function which returns the window handle of a GtkWindow's GdkWindow.

	* app/widgets/gimpfiledialog.c: implement ::get_window().

	* app/display/gimpdisplay.[ch]: ditto. Removed window handle API.

	* app/gui/gui-vtable.c: changed accordingly.

	* libgimpbase/gimpbaseenums.[ch] (enum GimpProgressCommand):
	added GIMP_PROGRESS_COMMAND_GET_WINDOW.

	* app/plug-in/plug-in-progress.[ch] (plug_in_progress_get_window):
	new function. Also renamed some functions to match the
	GimpProgress interface, and not the legacy PDB procedure names.

	* tools/pdbgen/pdb/progress.pdb
	* app/core/gimppdbprogress.c: implement get_window() on both
	sides of the wire, keeping backward compatibility (hopefully).

	* libgimp/gimpprogress.[ch]: deprecated gimp_progress_install()
	and added gimp_progress_install_vtable() which takes a vtable with
	padding to be extensible. Added get_window() vtable entry and
	dispatch it accordingly. Also added pulse() which was implemented
	in a hackish way before. Everything is of course backward
	compatible.

	* libgimp/gimpprogressbar.c: inmplement the get_window() stuff
	so a plug-in dialog containing a progress can be the transient
	parent of another dialog in another plug-in.

	* libgimp/gimpui.[ch] (gimp_ui_get_progress_window): new function
	which returns a foreign GdkWindow of this plug-ins progress
	window.

	Renamed gimp_window_set_transient_for_default_display() to
	gimp_window_set_transient() and make it use the progress' window
	handle instead of the display's (which is the right thing to do in
	almost all cases).

	* libgimp/gimp.def
	* libgimp/gimpui.def: add the new functions.

	* tools/pdbgen/enums.pl
	* app/pdb/internal_procs.c
	* app/pdb/progress_cmds.c
	* libgimp/gimpprogress_pdb.[ch]: regenerated.

	* libgimp/gimpexport.c
	* plug-ins/*/*.c: follow API change.
2005-09-09 18:07:31 +00:00

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/*
* wind 1.1.0 - 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
*
* Version: 1.1.0
* May 2000 tim copperfield [timecop@japan.co.jp]
*
* Added dynamic preview.
*
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "libgimp/stdplugins-intl.h"
#define PLUG_IN_PROC "plug-in-wind"
#define PLUG_IN_BINARY "wind"
#define COMPARE_WIDTH 3
#define SCALE_WIDTH 200
#define MIN_THRESHOLD 0
#define MAX_THRESHOLD 50
#define MIN_STRENGTH 1
#define MAX_STRENGTH 50
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 (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static gint dialog_box (GimpDrawable *drawable);
static gint render_effect (GimpDrawable *drawable,
GimpPreview *preview);
static void render_wind (GimpDrawable *drawable,
gint threshold,
gint strength,
direction_t direction,
edge_t edge,
GimpPreview *preview);
static void render_blast (GimpDrawable *drawable,
gint threshold,
gint strength,
direction_t direction,
edge_t edge,
GimpPreview *preview);
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 get_derivative (guchar *pixel_R1,
guchar *pixel_R2,
edge_t edge,
gboolean has_alpha,
gint *derivative_R,
gint *derivative_G,
gint *derivative_B,
gint *derivative_A);
static gboolean threshold_exceeded (guchar *pixel_R1,
guchar *pixel_R2,
edge_t edge,
gint threshold,
gboolean has_alpha);
static void reverse_buffer (guchar *buffer,
gint length,
gint bytes);
GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run /* run_proc */
};
/*********************
Globals
*******************/
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 */
gboolean update_preview; /* should the preview be active? */
};
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); */
TRUE /* update_preview */
};
MAIN ()
static void
query (void)
{
static GimpParamDef args[] =
{
{ GIMP_PDB_INT32, "run-mode", "Interactive, non-interactive" },
{ GIMP_PDB_IMAGE, "image", "Input image (unused)" },
{ GIMP_PDB_DRAWABLE, "drawable", "Input drawable" },
{ GIMP_PDB_INT32, "threshold", "Controls where blending will be done >= 0" },
{ GIMP_PDB_INT32, "direction", "Left or Right: 0 or 1" },
{ GIMP_PDB_INT32, "strength", "Controls the extent of the blending > 1" },
{ GIMP_PDB_INT32, "algorithm", "WIND, BLAST" },
{ GIMP_PDB_INT32, "edge", "LEADING, TRAILING, or BOTH" }
};
gimp_install_procedure (PLUG_IN_PROC,
"Renders a wind effect.",
"Renders a wind effect.",
"Nigel Wetten",
"Nigel Wetten",
"May 2000",
N_("Wi_nd..."),
"RGB*",
GIMP_PLUGIN,
G_N_ELEMENTS (args), 0,
args, NULL);
gimp_plugin_menu_register (PLUG_IN_PROC, "<Image>/Filters/Distorts");
}
static void
run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[1];
GimpDrawable *drawable;
GimpRunMode run_mode;
GimpPDBStatusType status = GIMP_PDB_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));
INIT_I18N ();
switch (run_mode)
{
case GIMP_RUN_NONINTERACTIVE:
if (nparams != 8)
{
status = GIMP_PDB_CALLING_ERROR;
}
else
{
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, NULL) == -1)
status = GIMP_PDB_EXECUTION_ERROR;
}
break;
case GIMP_RUN_INTERACTIVE:
gimp_get_data (PLUG_IN_PROC, &config);
if (! dialog_box (drawable))
{
status = GIMP_PDB_CANCEL;
break;
}
if (render_effect(drawable, NULL) == -1)
{
status = GIMP_PDB_CALLING_ERROR;
break;
}
gimp_set_data (PLUG_IN_PROC, &config, sizeof (config_t));
gimp_displays_flush ();
break;
case GIMP_RUN_WITH_LAST_VALS:
gimp_get_data (PLUG_IN_PROC, &config);
if (render_effect (drawable, NULL) == -1)
{
status = GIMP_PDB_EXECUTION_ERROR;
gimp_message ("An execution error occurred.");
}
else
{
gimp_displays_flush ();
}
}
gimp_drawable_detach (drawable);
*nreturn_vals = 1;
*return_vals = values;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = status;
}
static gint
render_effect (GimpDrawable *drawable,
GimpPreview *preview)
{
if (config.alg == RENDER_WIND)
{
render_wind (drawable, config.threshold, config.strength,
config.direction, config.edge, preview);
}
else if (config.alg == RENDER_BLAST)
{
render_blast (drawable, config.threshold, config.strength,
config.direction, config.edge, preview);
}
return 0;
}
static void
render_blast (GimpDrawable *drawable,
gint threshold,
gint strength,
direction_t direction,
edge_t edge,
GimpPreview *preview)
{
gint x1, x2, y1, y2;
gint width;
gint height;
gint bytes = drawable->bpp;
guchar *buffer, *preview_buffer = NULL;
GimpPixelRgn src_region, dest_region;
gint row;
gint row_stride;
gint marker = 0;
gint lpi;
if (preview)
{
gimp_preview_get_position (preview, &x1, &y1);
gimp_preview_get_size (preview, &width, &height);
x2 = x1 + width;
y2 = y1 + height;
preview_buffer = g_new (guchar, width * height * bytes);
}
else
{
if (gimp_drawable_mask_intersect (drawable->drawable_id,
&x1, &y1, &x2, &y2))
{
gimp_progress_init (_("Rendering Blast..."));
width = x2 - x1;
height = y2 - y1;
gimp_pixel_rgn_init (&dest_region, drawable,
x1, y1, width, height, TRUE, TRUE);
}
else
return;
}
gimp_pixel_rgn_init (&src_region, drawable,
x1, y1, width, height, FALSE, FALSE);
row_stride = width * bytes;
lpi = row_stride - bytes;
buffer = g_new (guchar, 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);
}
if (preview)
{
memcpy (preview_buffer + (row - y1) * row_stride,
buffer,
row_stride);
}
else
{
gimp_pixel_rgn_set_row (&dest_region, buffer, x1, row, width);
gimp_progress_update ((double) (row - y1)/ (double) (height));
}
if (marker)
{
gint j, limit;
limit = 1 + g_random_int_range (0, 2);
for (j = 0; (j < limit) && (row < y2); j++)
{
row++;
if (row < y2)
{
gimp_pixel_rgn_get_row (&src_region,
buffer, x1, row, width);
if (preview)
{
memcpy (preview_buffer + (row - y1) * row_stride,
buffer,
row_stride);
}
else
{
gimp_pixel_rgn_set_row (&dest_region,
buffer, x1, row, width);
}
}
}
marker = 0;
}
}
g_free(buffer);
/* update the region */
if (preview)
{
gimp_preview_draw_buffer (preview, preview_buffer, width * bytes);
g_free (preview_buffer);
}
else
{
gimp_drawable_flush (drawable);
gimp_drawable_merge_shadow (drawable->drawable_id, TRUE);
gimp_drawable_update (drawable->drawable_id, x1, y1, width, height);
}
}
static void
render_wind (GimpDrawable *drawable,
gint threshold,
gint strength,
direction_t direction,
edge_t edge,
GimpPreview *preview)
{
GimpPixelRgn src_region, dest_region;
gint width;
gint height;
gint bytes;
gint row_stride;
gint comp_stride;
gint row;
guchar *sb, *preview_buffer = NULL;
gint lpi;
gint x1, y1, x2, y2;
bytes = drawable->bpp;
if (preview)
{
gimp_preview_get_position (preview, &x1, &y1);
gimp_preview_get_size (preview, &width, &height);
x2 = x1 + width;
y2 = y1 + height;
preview_buffer = g_new (guchar, width * height * bytes);
}
else
{
if (gimp_drawable_mask_intersect (drawable->drawable_id, &x1, &y1, &x2, &y2))
{
gimp_progress_init (_("Rendering Wind..."));
width = x2 - x1;
height = y2 - y1;
gimp_pixel_rgn_init (&dest_region, drawable,
x1, y1, width, height, TRUE, TRUE);
}
else
return;
}
gimp_pixel_rgn_init (&src_region, drawable,
x1, y1, width, height, FALSE, FALSE);
row_stride = width * bytes;
comp_stride = bytes * COMPARE_WIDTH;
lpi = row_stride - comp_stride;
sb = g_new (guchar, 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);
if (preview)
{
memcpy (preview_buffer + (row - y1) * row_stride, sb, row_stride);
}
else
{
gimp_pixel_rgn_set_row (&dest_region, sb, x1, row, width);
gimp_progress_update ((double) (row - y1)/ (double) (height));
}
}
g_free(sb);
/* update the region */
if (preview)
{
gimp_preview_draw_buffer (preview, preview_buffer, width * bytes);
g_free (preview_buffer);
}
else
{
gimp_drawable_flush (drawable);
gimp_drawable_merge_shadow (drawable->drawable_id, TRUE);
gimp_drawable_update (drawable->drawable_id, x1, y1, width, height);
}
}
static gint
render_blast_row (guchar *buffer,
gint bytes,
gint lpi,
gint threshold,
gint strength,
edge_t edge)
{
gint Ri, Gi, Bi, Ai = 0;
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 (bytes > 3)
Ai = j + 3;
if (threshold_exceeded (buffer + Ri,
buffer + Ri + bytes,
edge,
threshold,
(bytes > 3)))
{
/* we have found an edge, do bleeding */
sbi = Ri;
weight = g_random_int_range (0, 10);
if (weight > 5) /* 40% */
{
random_factor = 2;
}
else if (weight > 3) /* 20% */
{
random_factor = 3;
}
else /* 40% */
{
random_factor = 4;
}
bleed_length = 0;
switch (g_random_int_range (0, 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];
if(bytes > 3)
buffer[i+3] = buffer[Ai];
}
j = lbi - bytes;
if (g_random_int_range (0, 10) > 7) /* 20% */
{
skip = 1;
}
}
}
return skip;
}
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, blend_amt_A = 0 ;
gint blend_colour_R, blend_colour_G, blend_colour_B, blend_colour_A = 0 ;
gint target_colour_R, target_colour_G, target_colour_B, target_colour_A = 0;
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;
gint Ai = 0;
if (bytes > 3)
Ai = j + 3;
if (threshold_exceeded (sb + Ri,
sb + Ri + comp_stride,
edge,
threshold,
(bytes > 3)))
{
/* 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 (bytes > 3)
{
blend_colour_A = sb[Ai];
target_colour_A = sb[sbi+3];
}
if (g_random_int_range (0, 3)) /* introduce weighted randomness */
{
bleed_length_max = strength;
}
else
{
bleed_length_max = 4 * strength;
}
bleed_variation = 1 + (gint) (bleed_length_max * g_random_double ());
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;
if (bytes > 3)
{
blend_amt_A = target_colour_A - blend_colour_A;
}
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,
(bytes>3))
&& g_random_boolean ())
{
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(bytes > 3)
{
blend_colour_A += blend_amt_A * n * denominator;
if (blend_colour_A > 255)
blend_colour_A = 255;
else if (blend_colour_A < 0)
blend_colour_A = 0;
}
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 + 0] = (blend_colour_R * 2 + sb[i + 0]) / 3;
sb[i + 1] = (blend_colour_G * 2 + sb[i + 1]) / 3;
sb[i + 2] = (blend_colour_B * 2 + sb[i + 2]) / 3;
if (bytes > 3)
sb[i + 3] = (blend_colour_A * 2 + sb[i + 3]) / 3;
if (threshold_exceeded (sb + i,
sb + i + comp_stride,
BOTH,
threshold,
(bytes>3)))
{
target_colour_R = sb[i + comp_stride + 0];
target_colour_G = sb[i + comp_stride + 1];
target_colour_B = sb[i + comp_stride + 2];
if(bytes > 3)
target_colour_A = sb[i + comp_stride + 3];
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;
if(bytes > 3)
blend_amt_A = target_colour_A - blend_colour_A;
denominator = n * n + n;
denominator = 2.0 / denominator;
}
n--;
}
}
}
}
static gboolean
threshold_exceeded (guchar *pixel_R1,
guchar *pixel_R2,
edge_t edge,
gint threshold,
gboolean has_alpha)
{
gint derivative_R, derivative_G, derivative_B, derivative_A;
gboolean return_value;
get_derivative (pixel_R1, pixel_R2, edge, has_alpha,
&derivative_R, &derivative_G, &derivative_B, &derivative_A);
if(((derivative_R +
derivative_G +
derivative_B +
derivative_A) / 4) > threshold)
{
return_value = TRUE;
}
else
{
return_value = FALSE;
}
return return_value;
}
static void
get_derivative (guchar *pixel_R1,
guchar *pixel_R2,
edge_t edge,
gboolean has_alpha,
gint *derivative_R,
gint *derivative_G,
gint *derivative_B,
gint *derivative_A)
{
guchar *pixel_G1 = pixel_R1 + 1;
guchar *pixel_B1 = pixel_R1 + 2;
guchar *pixel_G2 = pixel_R2 + 1;
guchar *pixel_B2 = pixel_R2 + 2;
guchar *pixel_A1;
guchar *pixel_A2;
if (has_alpha)
{
pixel_A1 = pixel_R1 + 3;
pixel_A2 = pixel_R2 + 3;
*derivative_A = *pixel_A2 - *pixel_A1;
}
else
{
*derivative_A = 0;
}
*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);
*derivative_A = abs (*derivative_A);
}
else if (edge == LEADING)
{
*derivative_R = -(*derivative_R);
*derivative_G = -(*derivative_G);
*derivative_B = -(*derivative_B);
*derivative_A = -(*derivative_A);
}
else if (edge == TRAILING)
{
/* no change needed */
}
}
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;
if (bytes > 3)
{
temp = buffer[i + 3];
buffer[i + 3] = buffer[si + 3];
buffer[si + 3] = (guchar) temp;
}
}
}
/***************************************************
GUI
***************************************************/
static gint
dialog_box (GimpDrawable *drawable)
{
GtkWidget *dialog;
GtkWidget *main_vbox;
GtkWidget *table;
GtkWidget *preview;
GtkObject *adj;
GtkWidget *frame;
GtkWidget *style1;
GtkWidget *style2;
GtkWidget *dir1;
GtkWidget *dir2;
GtkWidget *edge1;
GtkWidget *edge2;
GtkWidget *edge3;
gboolean run;
gimp_ui_init (PLUG_IN_BINARY, TRUE);
dialog = gimp_dialog_new (_("Wind"), PLUG_IN_BINARY,
NULL, 0,
gimp_standard_help_func, PLUG_IN_PROC,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gimp_window_set_transient (GTK_WINDOW (dialog));
main_vbox = gtk_vbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (dialog)->vbox), main_vbox);
gtk_widget_show (main_vbox);
preview = gimp_drawable_preview_new (drawable, &config.update_preview);
gtk_box_pack_start_defaults (GTK_BOX (main_vbox), preview);
gtk_widget_show (preview);
g_signal_connect_swapped (preview, "invalidated",
G_CALLBACK (render_effect), drawable);
/*****************************************************
outer frame and table
***************************************************/
table = gtk_table_new (1, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_table_set_row_spacings (GTK_TABLE (table), 6);
gtk_box_pack_start (GTK_BOX (main_vbox), table, FALSE, FALSE, 0);
/*********************************************************
radio buttons for choosing wind rendering algorithm
******************************************************/
frame = gimp_int_radio_group_new (TRUE, _("Style"),
G_CALLBACK (gimp_radio_button_update),
&config.alg, config.alg,
_("_Wind"), RENDER_WIND, &style1,
_("_Blast"), RENDER_BLAST, &style2,
NULL);
g_signal_connect_swapped (style1, "toggled",
G_CALLBACK (gimp_preview_invalidate),
preview);
g_signal_connect_swapped (style2, "toggled",
G_CALLBACK (gimp_preview_invalidate),
preview);
gtk_table_attach (GTK_TABLE (table), frame, 0, 1, 0, 1,
GTK_FILL | GTK_EXPAND, GTK_FILL | GTK_EXPAND, 0, 0);
gtk_widget_show (frame);
/******************************************************
radio buttons for choosing LEFT or RIGHT
**************************************************/
frame = gimp_int_radio_group_new (TRUE, _("Direction"),
G_CALLBACK (gimp_radio_button_update),
&config.direction, config.direction,
_("_Left"), LEFT, &dir1,
_("_Right"), RIGHT, &dir2,
NULL);
g_signal_connect_swapped (dir1, "toggled",
G_CALLBACK (gimp_preview_invalidate),
preview);
g_signal_connect_swapped (dir2, "toggled",
G_CALLBACK (gimp_preview_invalidate),
preview);
gtk_table_attach (GTK_TABLE (table), frame, 1, 2, 0, 1,
GTK_FILL | GTK_EXPAND, GTK_FILL | GTK_EXPAND, 0, 0);
gtk_widget_show (frame);
/*****************************************************
radio buttons for choosing BOTH, LEADING, TRAILING
***************************************************/
frame = gimp_int_radio_group_new (TRUE, _("Edge Affected"),
G_CALLBACK (gimp_radio_button_update),
&config.edge, config.edge,
_("L_eading"), LEADING, &edge1,
_("Tr_ailing"), TRAILING, &edge2,
_("Bot_h"), BOTH, &edge3,
NULL);
g_signal_connect_swapped (edge1, "toggled",
G_CALLBACK (gimp_preview_invalidate),
preview);
g_signal_connect_swapped (edge2, "toggled",
G_CALLBACK (gimp_preview_invalidate),
preview);
g_signal_connect_swapped (edge3, "toggled",
G_CALLBACK (gimp_preview_invalidate),
preview);
gtk_table_attach (GTK_TABLE (table), frame, 2, 3, 0, 1,
GTK_FILL | GTK_EXPAND, GTK_FILL | GTK_EXPAND, 0, 0);
gtk_widget_show (frame);
gtk_widget_show (table);
/****************************************************
table for sliders
****************************************************/
table = gtk_table_new (2, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_table_set_row_spacings (GTK_TABLE (table), 6);
gtk_box_pack_start (GTK_BOX (main_vbox), table, FALSE, FALSE, 0);
/*****************************************************
slider and entry for threshold
***************************************************/
adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
_("_Threshold:"), SCALE_WIDTH, 0,
config.threshold,
MIN_THRESHOLD, MAX_THRESHOLD, 1.0, 10, 0,
TRUE, 0, 0,
_("Higher values restrict the effect to fewer areas of the image"), NULL);
g_signal_connect (adj, "value-changed",
G_CALLBACK (gimp_int_adjustment_update),
&config.threshold);
g_signal_connect_swapped (adj, "value-changed",
G_CALLBACK (gimp_preview_invalidate),
preview);
/*****************************************************
slider and entry for strength of wind
****************************************************/
adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
_("_Strength:"), SCALE_WIDTH, 0,
config.strength,
MIN_STRENGTH, MAX_STRENGTH, 1.0, 10.0, 0,
TRUE, 0, 0,
_("Higher values increase the magnitude of the effect"), NULL);
g_signal_connect (adj, "value-changed",
G_CALLBACK (gimp_int_adjustment_update),
&config.strength);
g_signal_connect_swapped (adj, "value-changed",
G_CALLBACK (gimp_preview_invalidate),
preview);
gtk_widget_show (table);
gtk_widget_show (dialog);
run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
gtk_widget_destroy (dialog);
return run;
}
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