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gimp/plug-ins/common/papertile.c

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/*============================================================================*
Paper Tile 1.0 -- A GIMP PLUG-IN
Copyright (C) 1997-1999 Hirotsuna Mizuno <s1041150@u-aizu.ac.jp>
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU 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 <stdlib.h>
#include <gtk/gtk.h>
#include "libgimp/gimp.h"
#include "libgimp/gimpui.h"
#include "libgimp/stdplugins-intl.h"
/*============================================================================*/
/* DEFINES */
/*============================================================================*/
#define PLUGIN_PROCEDURE_NAME "plug_in_papertile"
#define PLUGIN_TITLE "Paper Tile"
#define PLUGIN_PATH "<Image>/Filters/Map/Paper Tile"
/*============================================================================*/
/* TYPES */
/*============================================================================*/
typedef enum
{
BACKGROUND_TYPE_TRANSPARENT,
BACKGROUND_TYPE_INVERTED,
BACKGROUND_TYPE_IMAGE,
BACKGROUND_TYPE_FOREGROUND,
BACKGROUND_TYPE_BACKGROUND,
BACKGROUND_TYPE_COLOR
} BackgroundType;
typedef enum
{
FRACTIONAL_TYPE_BACKGROUND, /* AS BACKGROUND */
FRACTIONAL_TYPE_IGNORE, /* NOT OPERATED */
FRACTIONAL_TYPE_FORCE /* FORCE DIVISION */
} FractionalType;
typedef struct _PluginParams PluginParams;
struct _PluginParams
{
gint32 tile_size;
gint32 division_x;
gint32 division_y;
gdouble move_max_rate;
FractionalType fractional_type;
gboolean centering;
gboolean wrap_around;
BackgroundType background_type;
guchar background_color[4];
};
/*============================================================================*/
/* VARIABLES */
/*============================================================================*/
static struct {
PluginParams params;
gint32 image;
GDrawable * drawable;
gboolean drawable_has_alpha;
struct {
gint x0;
gint y0;
gint x1;
gint y1;
gint width;
gint height;
} selection;
GRunModeType run_mode;
gboolean run;
} p = {
{
1, /* tile_size */
16, /* division_x */
16, /* division_y */
25.0, /* move_max_rate */
FRACTIONAL_TYPE_BACKGROUND, /* fractional_type */
TRUE, /* centering */
FALSE, /* wrap_around */
BACKGROUND_TYPE_INVERTED, /* background_type */
{ 0, 0, 255, 255 } /* background_color[4] */
},
0, /* image */
NULL, /* drawable */
FALSE, /* drawable_has_alpha */
{ 0, 0, 0, 0, 0, 0 }, /* selection */
RUN_INTERACTIVE, /* run_mode */
FALSE /* run */
};
/*----------------------------------------------------------------------------*/
static void
params_save_to_gimp ( void )
{
gimp_set_data( PLUGIN_PROCEDURE_NAME, &p.params, sizeof p.params );
}
/*----------------------------------------------------------------------------*/
static void
params_load_from_gimp ( void )
{
gimp_get_data( PLUGIN_PROCEDURE_NAME, &p.params );
if( 0 < p.params.division_x ){
p.params.tile_size = p.drawable->width / p.params.division_x;
if( 0 < p.params.tile_size ){
p.params.division_y = p.drawable->height / p.params.tile_size;
}
}
if( p.params.tile_size <= 0 ||
p.params.division_x <= 0 || p.params.division_y <= 0 ){
p.params.tile_size = MIN( p.drawable->width, p.drawable->height );
p.params.division_x = p.drawable->width / p.params.tile_size;
p.params.division_y = p.drawable->height / p.params.tile_size;
}
if( !p.drawable_has_alpha ){
if( p.params.background_type == BACKGROUND_TYPE_TRANSPARENT ){
p.params.background_type = BACKGROUND_TYPE_INVERTED;
}
p.params.background_color[3] = 255;
}
}
/*============================================================================*/
/* GUI */
/*============================================================================*/
static struct {
GtkWidget * dialog;
GtkAdjustment * tile_size_adj;
GtkAdjustment * division_x_adj;
GtkAdjustment * division_y_adj;
GtkAdjustment * move_max_rate_adj;
GtkWidget * color_button;
} w;
/*============================================================================*/
/* ADJUSTMENTS */
/*============================================================================*/
static inline void
adjustments_create ( void )
{
w.tile_size_adj =
GTK_ADJUSTMENT( gtk_adjustment_new( p.params.tile_size, 1.0,
MAX(p.drawable->width,
p.drawable->height),
1.0, 5.0, 1.0 ) );
w.division_x_adj =
GTK_ADJUSTMENT( gtk_adjustment_new( p.params.division_x, 1.0,
p.drawable->width, 1.0, 5.0, 1.0 ) );
w.division_y_adj =
GTK_ADJUSTMENT( gtk_adjustment_new( p.params.division_y, 1.0,
p.drawable->height, 1.0, 5.0, 1.0 ) );
w.move_max_rate_adj =
GTK_ADJUSTMENT( gtk_adjustment_new( p.params.move_max_rate,
0.0, 100.0, 1.0, 10.0, 1.0 ) );
}
/*----------------------------------------------------------------------------*/
static void
tile_size_adj_changed ( GtkAdjustment *adj )
{
if( p.params.tile_size != (gint)adj->value ){
p.params.tile_size = adj->value;
p.params.division_x = p.drawable->width / p.params.tile_size;
p.params.division_y = p.drawable->height / p.params.tile_size;
gtk_adjustment_set_value( w.division_x_adj, p.params.division_x );
gtk_adjustment_set_value( w.division_y_adj, p.params.division_y );
}
}
/*----------------------------------------------------------------------------*/
static void
division_x_adj_changed ( GtkAdjustment *adj )
{
if( p.params.division_x != (gint)adj->value ){
p.params.division_x = adj->value;
p.params.tile_size = p.drawable->width / p.params.division_x;
p.params.division_y =
p.drawable->height * p.params.division_x / p.drawable->width;
gtk_adjustment_set_value( w.tile_size_adj, p.params.tile_size );
gtk_adjustment_set_value( w.division_y_adj, p.params.division_y );
}
}
/*----------------------------------------------------------------------------*/
static void
division_y_adj_changed ( GtkAdjustment *adj )
{
if( p.params.division_y != (gint)adj->value ){
p.params.division_y = adj->value;
p.params.tile_size = p.drawable->height / p.params.division_y;
p.params.division_x =
p.drawable->width * p.params.division_y / p.drawable->height;
gtk_adjustment_set_value( w.tile_size_adj, p.params.tile_size );
gtk_adjustment_set_value( w.division_x_adj, p.params.division_x );
}
}
/*----------------------------------------------------------------------------*/
static void
move_max_rate_adj_changed ( GtkAdjustment *adj )
{
p.params.move_max_rate = adj->value;
}
/*----------------------------------------------------------------------------*/
static inline void
adjustments_signal_connect ( void )
{
gtk_signal_connect( GTK_OBJECT(w.tile_size_adj), "value_changed",
GTK_SIGNAL_FUNC(tile_size_adj_changed), NULL );
gtk_signal_connect( GTK_OBJECT(w.division_x_adj), "value_changed",
GTK_SIGNAL_FUNC(division_x_adj_changed), NULL );
gtk_signal_connect( GTK_OBJECT(w.division_y_adj), "value_changed",
GTK_SIGNAL_FUNC(division_y_adj_changed), NULL );
gtk_signal_connect( GTK_OBJECT(w.move_max_rate_adj), "value_changed",
GTK_SIGNAL_FUNC(move_max_rate_adj_changed), NULL );
}
/*============================================================================*/
/* DIALOG */
/*============================================================================*/
static void
dialog_ok_clicked ( GtkButton *button )
{
p.run = TRUE;
gtk_widget_destroy( w.dialog );
}
/*----------------------------------------------------------------------------*/
static void
dialog_cancel_clicked ( GtkButton *button )
{
p.run = FALSE;
gtk_widget_destroy( w.dialog );
}
/*----------------------------------------------------------------------------*/
static void
dialog_destroyed ( GtkWindow *window )
{
gtk_main_quit();
w.dialog = NULL;
}
/*----------------------------------------------------------------------------*/
static gboolean
dialog_deleted ( GtkWindow *window, GdkEventAny *e )
{
p.run = FALSE;
return FALSE;
}
/*----------------------------------------------------------------------------*/
static void
fractional_type_toggled ( GtkToggleButton *button, FractionalType *type )
{
if( gtk_toggle_button_get_active( button ) ){
if( *type != p.params.fractional_type ){
p.params.fractional_type = *type;
}
}
}
/*----------------------------------------------------------------------------*/
static void
centering_toggled ( GtkToggleButton *button )
{
p.params.centering = gtk_toggle_button_get_active( button );
}
/*----------------------------------------------------------------------------*/
static void
wrap_around_toggled ( GtkToggleButton *button )
{
p.params.wrap_around = gtk_toggle_button_get_active( button );
}
/*----------------------------------------------------------------------------*/
static void
background_type_toggled ( GtkToggleButton *button, BackgroundType *type )
{
if ( gtk_toggle_button_get_active( button ) )
{
if( *type != p.params.background_type )
{
p.params.background_type = *type;
gtk_widget_set_sensitive (w.color_button,
*type == BACKGROUND_TYPE_COLOR);
}
}
}
/*----------------------------------------------------------------------------*/
static inline void
dialog_create ( void )
{
GtkWidget *main_vbox;
GtkWidget *main_hbox;
GtkWidget *action_box;
GtkWidget *button;
GtkWidget *separator;
GtkWidget *vbox;
GtkWidget *table;
GtkWidget *frame;
GtkWidget *box;
GtkWidget *label;
/* SPECIAL WIDGETS */
adjustments_create();
/* DIALOG WINDOW */
w.dialog = gtk_window_new( GTK_WINDOW_DIALOG );
gtk_window_set_title( GTK_WINDOW(w.dialog), _("Paper Tile") );
gtk_window_set_policy( GTK_WINDOW(w.dialog), FALSE, FALSE, FALSE );
gtk_window_set_position( GTK_WINDOW(w.dialog), GTK_WIN_POS_MOUSE );
gtk_container_set_border_width( GTK_CONTAINER(w.dialog), 5 );
/* MAIN LAYOUT */
main_vbox = gtk_vbox_new( FALSE, 5 );
gtk_container_set_border_width( GTK_CONTAINER(main_vbox), 0 );
gtk_container_add( GTK_CONTAINER(w.dialog), main_vbox );
main_hbox = gtk_hbox_new( TRUE, 5 );
gtk_container_set_border_width( GTK_CONTAINER(main_hbox), 0 );
gtk_box_pack_start( GTK_BOX(main_vbox), main_hbox, TRUE, TRUE, 0 );
separator = gtk_hseparator_new();
gtk_box_pack_start( GTK_BOX(main_vbox), separator, FALSE, FALSE, 0 );
action_box = gtk_hbutton_box_new();
gtk_button_box_set_child_size( GTK_BUTTON_BOX(action_box), 1, 1 );
gtk_button_box_set_spacing( GTK_BUTTON_BOX(action_box), 5 );
gtk_button_box_set_layout( GTK_BUTTON_BOX(action_box), GTK_BUTTONBOX_END );
gtk_box_pack_start( GTK_BOX(main_vbox), action_box, FALSE, FALSE, 0 );
/* L */
vbox = gtk_vbox_new( FALSE, 5 );
gtk_container_set_border_width( GTK_CONTAINER(vbox), 0 );
gtk_box_pack_start( GTK_BOX(main_hbox), vbox, TRUE, TRUE, 0 );
frame = gtk_frame_new (_("Division"));
gtk_container_set_border_width( GTK_CONTAINER(frame), 5 );
gtk_box_pack_start( GTK_BOX(vbox), frame, TRUE, FALSE, 0 );
table = gtk_table_new( 3, 2, FALSE );
gtk_container_set_border_width( GTK_CONTAINER(table), 5 );
gtk_container_add( GTK_CONTAINER(frame), table );
label = gtk_label_new( _("X:") );
gtk_table_attach_defaults( GTK_TABLE(table), label, 0, 1, 0, 1 );
button = gtk_spin_button_new( w.division_x_adj, 1.5, 0 );
gtk_table_attach_defaults( GTK_TABLE(table), button, 1, 2, 0, 1 );
label = gtk_label_new( _("Y:") );
gtk_table_attach_defaults( GTK_TABLE(table), label, 0, 1, 1, 2 );
button = gtk_spin_button_new( w.division_y_adj, 1.5, 0 );
gtk_table_attach_defaults( GTK_TABLE(table), button, 1, 2, 1, 2 );
label = gtk_label_new( _("Size:") );
gtk_table_attach_defaults( GTK_TABLE(table), label, 0, 1, 2, 3 );
button = gtk_spin_button_new( w.tile_size_adj, 1.5, 0 );
gtk_table_attach_defaults( GTK_TABLE(table), button, 1, 2, 2, 3 );
frame = gtk_frame_new( _("Fractional Pixels") );
gtk_container_set_border_width( GTK_CONTAINER(frame), 5 );
gtk_box_pack_start( GTK_BOX(vbox), frame, TRUE, FALSE, 0 );
box = gtk_vbox_new( FALSE, 0 );
gtk_container_set_border_width( GTK_CONTAINER(box), 5 );
gtk_container_add( GTK_CONTAINER(frame), box );
{
gint i;
GSList *group = NULL;
static FractionalType type[] = {
FRACTIONAL_TYPE_BACKGROUND,
FRACTIONAL_TYPE_IGNORE,
FRACTIONAL_TYPE_FORCE
};
static const gchar *name[] = {
N_("Background"),
N_("Ignore"),
N_("Force")
};
for( i = 0; i < 3; i++ ){
button = gtk_radio_button_new_with_label( group, gettext (name[i]) );
gtk_signal_connect( GTK_OBJECT(button), "toggled",
GTK_SIGNAL_FUNC(fractional_type_toggled), &type[i] );
gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON(button),
p.params.fractional_type == type[i] );
gtk_box_pack_start( GTK_BOX(box), button, TRUE, TRUE, 0 );
group = gtk_radio_button_group( GTK_RADIO_BUTTON(button) );
}
}
button = gtk_check_button_new_with_label( _("Centering") );
gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON(button),
p.params.centering );
gtk_signal_connect( GTK_OBJECT(button), "toggled",
GTK_SIGNAL_FUNC(centering_toggled), NULL );
gtk_box_pack_start( GTK_BOX(box), button, TRUE, TRUE, 0 );
/* R */
vbox = gtk_vbox_new( FALSE, 5 );
gtk_container_set_border_width( GTK_CONTAINER(vbox), 0 );
gtk_box_pack_start( GTK_BOX(main_hbox), vbox, TRUE, TRUE, 0 );
frame = gtk_frame_new( _("Movement") );
gtk_container_set_border_width( GTK_CONTAINER(frame), 5 );
gtk_box_pack_start( GTK_BOX(vbox), frame, TRUE, FALSE, 0 );
table = gtk_table_new( 2, 2, FALSE );
gtk_container_set_border_width( GTK_CONTAINER(table), 5 );
gtk_container_add( GTK_CONTAINER(frame), table );
label = gtk_label_new( _("Max(%):") );
gtk_table_attach_defaults( GTK_TABLE(table), label, 0, 1, 0, 1 );
button = gtk_spin_button_new( w.move_max_rate_adj, 1.5, 0 );
gtk_table_attach_defaults( GTK_TABLE(table), button, 1, 2, 0, 1 );
button = gtk_check_button_new_with_label( _("Wrap Around") );
gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON(button),
p.params.wrap_around );
gtk_signal_connect( GTK_OBJECT(button), "toggled",
GTK_SIGNAL_FUNC(wrap_around_toggled), NULL );
gtk_table_attach_defaults( GTK_TABLE(table), button, 0, 2, 1, 2 );
frame = gtk_frame_new( _("Background Type") );
gtk_container_set_border_width( GTK_CONTAINER(frame), 5 );
gtk_box_pack_start( GTK_BOX(vbox), frame, TRUE, FALSE, 0 );
box = gtk_vbox_new( FALSE, 0 );
gtk_container_set_border_width( GTK_CONTAINER(box), 5 );
gtk_container_add( GTK_CONTAINER(frame), box );
{
gint i;
GSList *group = NULL;
static BackgroundType type[] = {
BACKGROUND_TYPE_TRANSPARENT,
BACKGROUND_TYPE_INVERTED,
BACKGROUND_TYPE_IMAGE,
BACKGROUND_TYPE_FOREGROUND,
BACKGROUND_TYPE_BACKGROUND,
BACKGROUND_TYPE_COLOR
};
static const gchar *name[] = {
N_("Transparent"),
N_("Inverted Image"),
N_("Image"),
N_("Foreground Color"),
N_("Background Color"),
N_("Custom Color")
};
for( i = p.drawable_has_alpha ? 0 : 1; i < 6; i++ ){
if( type[i] != BACKGROUND_TYPE_COLOR ){
button = gtk_radio_button_new_with_label( group, gettext (name[i]) );
} else {
button = gtk_radio_button_new (group );
gtk_container_set_border_width (GTK_CONTAINER (button), 0);
w.color_button = gimp_color_button_new (_("Background Color"), 100, 16,
p.params.background_color,
p.drawable_has_alpha ? 4 : 3);
gtk_widget_set_sensitive (w.color_button,
p.params.background_type == BACKGROUND_TYPE_COLOR);
gtk_container_add (GTK_CONTAINER (button), w.color_button);
}
gtk_signal_connect( GTK_OBJECT(button), "toggled",
GTK_SIGNAL_FUNC(background_type_toggled), &type[i] );
gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON(button),
p.params.background_type == type[i] );
gtk_box_pack_start( GTK_BOX(box), button, TRUE, TRUE, 0 );
group = gtk_radio_button_group( GTK_RADIO_BUTTON(button) );
}
}
/* ACTION AREA */
button = gtk_button_new_with_label( _("Ok") );
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_signal_connect( GTK_OBJECT(button), "clicked",
GTK_SIGNAL_FUNC(dialog_ok_clicked), NULL );
gtk_container_add( GTK_CONTAINER(action_box), button );
gtk_widget_grab_default (button);
button = gtk_button_new_with_label( _("Cancel") );
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_signal_connect( GTK_OBJECT(button), "clicked",
GTK_SIGNAL_FUNC(dialog_cancel_clicked), NULL );
gtk_container_add( GTK_CONTAINER(action_box), button );
/* SIGNALS */
gtk_signal_connect( GTK_OBJECT(w.dialog), "destroy",
GTK_SIGNAL_FUNC(dialog_destroyed), NULL );
gtk_signal_connect( GTK_OBJECT(w.dialog), "delete_event",
GTK_SIGNAL_FUNC(dialog_deleted), NULL );
adjustments_signal_connect();
gtk_widget_show_all( w.dialog );
}
/*----------------------------------------------------------------------------*/
static inline void
open_dialog ( void )
{
gint argc;
gchar **argv;
guchar *ccube;
p.run = FALSE;
argc = 1;
argv = g_new( gchar *, 1 );
argv[0] = g_strdup( PLUGIN_PROCEDURE_NAME );
ccube = gimp_color_cube();
gtk_init( &argc, &argv );
gtk_set_locale();
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() );
gtk_preview_set_color_cube( ccube[0], ccube[1], ccube[2], ccube[3] );
gtk_widget_set_default_visual( gtk_preview_get_visual() );
gtk_widget_set_default_colormap( gtk_preview_get_cmap() );
dialog_create();
gtk_main();
g_free( argv[0] );
g_free( argv );
}
/*============================================================================*/
/* PLUGIN CORE */
/*============================================================================*/
typedef struct _Tile Tile;
struct _Tile
{
guint x;
guint y;
gint z;
guint width;
guint height;
gint move_x;
gint move_y;
};
/*----------------------------------------------------------------------------*/
static int
tile_compare ( const void * x, const void * y )
{
return ((Tile *)x)->z - ((Tile *)y)->z;
}
/*----------------------------------------------------------------------------*/
static inline gdouble
drand ( void )
{
static gdouble R = 2.0 / (gdouble)RAND_MAX;
return (gdouble)rand() * R - 1.0;
}
/*----------------------------------------------------------------------------*/
static inline void
random_move ( gint *x, gint *y, gint max ){
gdouble angle = drand() * 3.141592658979323846;
gdouble radius = drand() * (gdouble)max;
*x = (gint)( radius * cos( angle ) );
*y = (gint)( radius * sin( angle ) );
}
/*----------------------------------------------------------------------------*/
static void
overlap_RGB ( guchar * base, const guchar * top )
{
base[0] = top[0];
base[1] = top[1];
base[2] = top[2];
}
static void
overlap_RGBA ( guchar * base, const guchar * top )
{
gdouble R1 = (gdouble)base[0] / 255.0;
gdouble G1 = (gdouble)base[1] / 255.0;
gdouble B1 = (gdouble)base[2] / 255.0;
gdouble A1 = (gdouble)base[3] / 255.0;
gdouble R2 = (gdouble) top[0] / 255.0;
gdouble G2 = (gdouble) top[1] / 255.0;
gdouble B2 = (gdouble) top[2] / 255.0;
gdouble A2 = (gdouble) top[3] / 255.0;
gdouble A3 = A2 + A1 * ( 1.0 - A2 );
if( 0.0 < A3 ){
gdouble R3 = ( R1 * A1 * ( 1.0 - A2 ) + R2 * A2 ) / A3;
gdouble G3 = ( G1 * A1 * ( 1.0 - A2 ) + G2 * A2 ) / A3;
gdouble B3 = ( B1 * A1 * ( 1.0 - A2 ) + B2 * A2 ) / A3;
R3 = CLAMP( R3, 0.0, 1.0 );
G3 = CLAMP( G3, 0.0, 1.0 );
B3 = CLAMP( B3, 0.0, 1.0 );
base[0] = (guchar)( R3 * 255.0 );
base[1] = (guchar)( G3 * 255.0 );
base[2] = (guchar)( B3 * 255.0 );
base[3] = (guchar)( A3 * 255.0 );
} else {
base[0] = 0;
base[1] = 0;
base[2] = 0;
base[3] = 0;
}
}
/*----------------------------------------------------------------------------*/
static inline void
filter ( void )
{
static void (* overlap)( guchar *, const guchar * );
GPixelRgn src;
GPixelRgn dst;
guchar pixel[4];
gint division_x;
gint division_y;
gint offset_x;
gint offset_y;
Tile * tiles;
gint numof_tiles;
Tile * t;
gint i;
gint x;
gint y;
gint move_max_pixels;
guchar * row_buffer;
gint clear_x0;
gint clear_y0;
gint clear_x1;
gint clear_y1;
gint clear_width;
gint clear_height;
guchar * pixels;
guchar * buffer;
gint dindex;
gint sindex;
gint px, py;
/* INITIALIZE */
gimp_pixel_rgn_init( &src, p.drawable, 0, 0,
p.drawable->width, p.drawable->height, FALSE, FALSE );
gimp_pixel_rgn_init( &dst, p.drawable, 0, 0,
p.drawable->width, p.drawable->height, TRUE, TRUE );
row_buffer = g_new( guchar, p.drawable->bpp * p.drawable->width );
pixels = g_new( guchar,
p.drawable->bpp * p.drawable->width * p.drawable->height );
buffer = g_new( guchar,
p.drawable->bpp * p.params.tile_size * p.params.tile_size );
overlap = p.drawable_has_alpha ? overlap_RGBA : overlap_RGB;
gimp_progress_init( "Paper Tile..." );
/* TILES */
srand( 0 );
division_x = p.params.division_x;
division_y = p.params.division_y;
if( p.params.fractional_type == FRACTIONAL_TYPE_FORCE ){
if( 0 < p.drawable->width % p.params.tile_size ) division_x++;
if( 0 < p.drawable->height % p.params.tile_size ) division_y++;
if( p.params.centering ){
if( 1 < p.drawable->width % p.params.tile_size ){
division_x++;
offset_x =
( p.drawable->width % p.params.tile_size ) / 2 - p.params.tile_size;
} else {
offset_x = 0;
}
if( 1 < p.drawable->height % p.params.tile_size ){
division_y++;
offset_y =
( p.drawable->height % p.params.tile_size ) / 2 - p.params.tile_size;
} else {
offset_y = 0;
}
} else {
offset_x = 0;
offset_y = 0;
}
} else {
if( p.params.centering ){
offset_x = ( p.drawable->width % p.params.tile_size ) / 2;
offset_y = ( p.drawable->height % p.params.tile_size ) / 2;
} else {
offset_x = 0;
offset_y = 0;
}
}
move_max_pixels = p.params.move_max_rate * p.params.tile_size / 100.0;
numof_tiles = division_x * division_y;
t = tiles = g_new( Tile, numof_tiles );
for( y = 0; y < division_y; y++ ){
gint srcy = offset_y + p.params.tile_size * y;
for( x = 0; x < division_x; x++, t++ ){
gint srcx = offset_x + p.params.tile_size * x;
if( srcx < 0 ){
t->x = 0;
t->width = srcx + p.params.tile_size;
} else if( srcx + p.params.tile_size < p.drawable->width ){
t->x = srcx;
t->width = p.params.tile_size;
} else {
t->x = srcx;
t->width = p.drawable->width - srcx;
}
if( srcy < 0 ){
t->y = 0;
t->height = srcy + p.params.tile_size;
} else if( srcy + p.params.tile_size < p.drawable->height ){
t->y = srcy;
t->height = p.params.tile_size;
} else {
t->y = srcy;
t->height = p.drawable->height - srcy;
}
t->z = rand();
random_move( &t->move_x, &t->move_y, move_max_pixels );
}
}
qsort( tiles, numof_tiles, sizeof *tiles, tile_compare );
/* CLEAR PIXELS */
for( y = 0; y < p.drawable->height; y++ ){
gimp_pixel_rgn_get_row
( &src,
&pixels[p.drawable->bpp*p.drawable->width*y],
0, y, p.drawable->width );
}
if( p.params.fractional_type == FRACTIONAL_TYPE_IGNORE ){
clear_x0 = offset_x;
clear_y0 = offset_y;
clear_width = p.params.tile_size * division_x;
clear_height = p.params.tile_size * division_y;
} else {
clear_x0 = 0;
clear_y0 = 0;
clear_width = p.drawable->width;
clear_height = p.drawable->height;
}
clear_x1 = clear_x0 + clear_width;
clear_y1 = clear_y0 + clear_height;
switch( p.params.background_type ){
case BACKGROUND_TYPE_TRANSPARENT:
for( y = clear_y0; y < clear_y1; y++ ){
for( x = clear_x0; x < clear_x1; x++ ){
dindex = p.drawable->bpp * ( p.drawable->width * y + x );
for( i = 0; i < p.drawable->bpp; i++ ){
pixels[dindex+i] = 0;
}
}
}
break;
case BACKGROUND_TYPE_INVERTED:
for( y = clear_y0; y < clear_y1; y++ ){
for( x = clear_x0; x < clear_x1; x++ ){
dindex = p.drawable->bpp * ( p.drawable->width * y + x );
pixels[dindex+0] = 255 - pixels[dindex+0];
pixels[dindex+1] = 255 - pixels[dindex+1];
pixels[dindex+2] = 255 - pixels[dindex+2];
}
}
break;
case BACKGROUND_TYPE_IMAGE:
break;
case BACKGROUND_TYPE_FOREGROUND:
gimp_palette_get_foreground( &pixel[0], &pixel[1], &pixel[2] );
pixel[3] = 255;
for( y = clear_y0; y < clear_y1; y++ ){
for( x = clear_x0; x < clear_x1; x++ ){
dindex = p.drawable->bpp * ( p.drawable->width * y + x );
for( i = 0; i < p.drawable->bpp; i++ ){
pixels[dindex+i] = pixel[i];
}
}
}
break;
case BACKGROUND_TYPE_BACKGROUND:
gimp_palette_get_background( &pixel[0], &pixel[1], &pixel[2] );
pixel[3] = 255;
for( y = clear_y0; y < clear_y1; y++ ){
for( x = clear_x0; x < clear_x1; x++ ){
dindex = p.drawable->bpp * ( p.drawable->width * y + x );
for( i = 0; i < p.drawable->bpp; i++ ){
pixels[dindex+i] = pixel[i];
}
}
}
break;
case BACKGROUND_TYPE_COLOR:
pixel[0] = p.params.background_color[0];
pixel[1] = p.params.background_color[1];
pixel[2] = p.params.background_color[2];
pixel[3] = p.params.background_color[3];
for( y = clear_y0; y < clear_y1; y++ ){
for( x = clear_x0; x < clear_x1; x++ ){
dindex = p.drawable->bpp * ( p.drawable->width * y + x );
for( i = 0; i < p.drawable->bpp; i++ ){
pixels[dindex+i] = pixel[i];
}
}
}
break;
}
/* DRAW */
for( t = tiles, i = 0; i < numof_tiles; i++, t++ ){
gint x0 = t->x + t->move_x;
gint y0 = t->y + t->move_y;
gimp_pixel_rgn_get_rect( &src, buffer, t->x, t->y, t->width, t->height );
for( y = 0; y < t->height; y++ ){
py = y0 + y;
for( x = 0; x < t->width; x++ ){
px = x0 + x;
sindex = p.drawable->bpp * ( t->width * y + x );
if( 0 <= px && px < p.drawable->width &&
0 <= py && py < p.drawable->height ){
dindex = p.drawable->bpp * ( p.drawable->width * py + px );
overlap( &pixels[dindex], &buffer[sindex] );
} else if( p.params.wrap_around ){
px = ( px + p.drawable->width ) % p.drawable->width;
py = ( py + p.drawable->height ) % p.drawable->height;
dindex = p.drawable->bpp * ( p.drawable->width * py + px );
overlap( &pixels[dindex], &buffer[sindex] );
}
}
}
gimp_progress_update( (gdouble)i / (gdouble)numof_tiles / 2.0 );
}
/* SEND IT */
for( y = 0; y < p.drawable->height; y++ ){
gimp_pixel_rgn_set_row
( &dst, &pixels[p.drawable->bpp*p.drawable->width*y],
0, y, p.drawable->width );
gimp_progress_update
( (gdouble)y / (gdouble)p.drawable->height / 2.0 + 0.5 );
}
gimp_drawable_flush( p.drawable );
gimp_drawable_merge_shadow( p.drawable->id, TRUE );
gimp_drawable_update( p.drawable->id, p.selection.x0, p.selection.y0,
p.selection.width, p.selection.height );
/* FREE */
g_free( buffer );
g_free( pixels );
g_free( tiles );
g_free( row_buffer );
}
/*============================================================================*/
/* PLUGIN INTERFACES */
/*============================================================================*/
static void
plugin_query ( void )
{
static GParamDef args[] = {
{ PARAM_INT32, "run_mode", "run mode" },
{ PARAM_IMAGE, "image", "input image" },
{ PARAM_DRAWABLE, "drawable", "input drawable" },
{ PARAM_INT32, "tile_size", "tile size (pixels)" },
{ PARAM_FLOAT, "move_max", "max move rate (%)" },
{ PARAM_INT32, "fractional_type", "0:Background 1:Ignore 2:Force" },
{ PARAM_INT32, "wrap_around", "wrap around (bool)" },
{ PARAM_INT32, "centering", "centering (bool)" },
{ PARAM_INT32, "background_type",
"0:Transparent 1:Inverted 2:Image? 3:FG 4:BG 5:Color" },
{ PARAM_INT32, "background_color", "background color (for bg-type 5)" },
{ PARAM_INT32, "background_alpha", "opacity (for bg-type 5)" }
};
static GParamDef * return_vals = NULL;
static gint numof_args = sizeof args / sizeof args[0];
static gint numof_return_vals = 0;
gimp_install_procedure
( PLUGIN_PROCEDURE_NAME,
"cuts an image into paper tiles, and slides each paper tile.",
"This plug-in cuts an image into paper tiles "
"and slides each paper tile.",
"Hirotsuna Mizuno <s1041150@u-aizu.ac.jp>",
"Copyright (c)1997-1999 Hirotsuna Mizuno",
"September 31, 1999",
PLUGIN_PATH,
"RGB*",
PROC_PLUG_IN,
numof_args,
numof_return_vals,
args,
return_vals );
}
/*----------------------------------------------------------------------------*/
static void
plugin_run ( gchar * name,
gint numof_params,
GParam * params,
gint * numof_return_vals,
GParam ** return_vals )
{
GStatusType status;
status = STATUS_SUCCESS;
p.run = FALSE;
p.run_mode = params[0].data.d_int32;
p.image = params[1].data.d_image;
p.drawable = gimp_drawable_get( params[2].data.d_drawable );
p.drawable_has_alpha = gimp_drawable_has_alpha( p.drawable->id );
gimp_drawable_mask_bounds( p.drawable->id,
&p.selection.x0, &p.selection.y0,
&p.selection.x1, &p.selection.y1 );
p.selection.width = p.selection.x1 - p.selection.x0;
p.selection.height = p.selection.y1 - p.selection.y0;
if( gimp_drawable_is_rgb( p.drawable->id ) ){
switch( p.run_mode ){
case RUN_INTERACTIVE: {
params_load_from_gimp();
p.run = FALSE;
open_dialog();
} break;
case RUN_NONINTERACTIVE: {
if( numof_params == 11 ){
p.params.tile_size = params[3].data.d_int32;
p.params.division_x = p.drawable->width / p.params.tile_size;
p.params.division_y = p.drawable->height / p.params.tile_size;
p.params.move_max_rate = params[4].data.d_float;
p.params.fractional_type = (FractionalType)params[5].data.d_int32;
p.params.wrap_around = params[6].data.d_int32;
p.params.centering = params[7].data.d_int32;
p.params.background_type = (BackgroundType)params[8].data.d_int32;
p.params.background_color[0] = params[9].data.d_color.red;
p.params.background_color[1] = params[9].data.d_color.green;
p.params.background_color[2] = params[9].data.d_color.blue;
p.params.background_color[3] = params[10].data.d_int32;
p.run = TRUE;
} else {
status = STATUS_CALLING_ERROR;
}
} break;
case RUN_WITH_LAST_VALS: {
params_load_from_gimp();
p.run = TRUE;
} break;
}
} else {
status = STATUS_EXECUTION_ERROR;
}
if( status == STATUS_SUCCESS && p.run ){
if( p.run_mode == RUN_INTERACTIVE ){
params_save_to_gimp();
gimp_undo_push_group_start (p.image);
}
filter();
if( p.run_mode == RUN_INTERACTIVE ){
gimp_undo_push_group_end (p.image);
gimp_displays_flush();
}
}
{
static GParam return_value[1];
return_value[0].type = PARAM_STATUS;
return_value[0].data.d_status = status;
*numof_return_vals = 1;
*return_vals = return_value;
}
}
/*============================================================================*/
GPlugInInfo PLUG_IN_INFO = { NULL, NULL, plugin_query, plugin_run };
MAIN()
/*============================================================================*/
/*============================================================================*/
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