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gimp/plug-ins/common/tileit.c

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/*
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This is a plug-in for GIMP.
*
* Tileit - This plugin take an image and makes repeated copies of it.
*
* Copyright (C) 1997 Andy Thomas alt@picnic.demon.co.uk
*
* 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.
*
* A fair proprotion of this code was taken from the Whirl plug-in
* which was copyrighted by Federico Mena Quintero (as below).
*
* Whirl plug-in --- distort an image into a whirlpool
* Copyright (C) 1997 Federico Mena Quintero
*
*/
/* Change log:-
* 0.2 Added new functions to allow "editing" of the tile patten.
*
* 0.1 First version released.
*/
#include "config.h"
#include <string.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "libgimp/stdplugins-intl.h"
#define PLUG_IN_PROC "plug-in-small-tiles"
#define PLUG_IN_BINARY "tileit"
/***** Magic numbers *****/
#define PREVIEW_SIZE 128
#define SCALE_WIDTH 80
#define MAX_SEGS 6
#define PREVIEW_MASK GDK_EXPOSURE_MASK | \
GDK_BUTTON_PRESS_MASK | \
GDK_BUTTON_MOTION_MASK
/* Variables set in dialog box */
typedef struct data
{
gint numtiles;
} TileItVals;
typedef struct
{
GtkWidget *preview;
guchar preview_row[PREVIEW_SIZE * 4];
gint img_bpp;
guchar *pv_cache;
} TileItInterface;
static TileItInterface tint =
{
NULL, /* Preview */
{
'4',
'u'
}, /* Preview_row */
4, /* bpp of drawable */
NULL
};
static GimpDrawable *tileitdrawable;
static gint img_bpp;
static void query (void);
static void run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static gboolean tileit_dialog (void);
static void tileit_scale_update (GtkAdjustment *adjustment,
gpointer data);
static void tileit_exp_update (GtkWidget *widget, gpointer value);
static void tileit_exp_update_f (GtkWidget *widget, gpointer value);
static void tileit_reset (GtkWidget *widget,
gpointer value);
static void tileit_radio_update (GtkWidget *widget,
gpointer data);
static void tileit_hvtoggle_update (GtkWidget *widget,
gpointer data);
static void do_tiles (void);
static gint tiles_xy (gint width, gint height,gint x,gint y,gint *nx,gint *ny);
static void all_update (void);
static void alt_update (void);
static void explict_update (gboolean);
static void dialog_update_preview (void);
static void cache_preview (void);
static gint tileit_preview_expose (GtkWidget *widget,
GdkEvent *event);
static gint tileit_preview_events (GtkWidget *widget,
GdkEvent *event);
const GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
/* Values when first invoked */
static TileItVals itvals =
{
2
};
/* Structures for call backs... */
/* The "explict tile" & family */
typedef enum
{
ALL,
ALT,
EXPLICT
} AppliedTo;
typedef struct
{
AppliedTo type;
gint x; /* X - pos of tile */
gint y; /* Y - pos of tile */
GtkObject *r_adj; /* row adjustment */
GtkObject *c_adj; /* column adjustment */
GtkWidget *applybut; /* The apply button */
} Exp_Call;
Exp_Call exp_call =
{
ALL,
-1,
-1,
NULL,
NULL,
NULL,
};
/* The reset button needs to know some toggle widgets.. */
typedef struct
{
GtkWidget *htoggle;
GtkWidget *vtoggle;
} Reset_Call;
Reset_Call res_call =
{
NULL,
NULL,
};
/* 2D - Array that holds the actions for each tile */
/* Action type on cell */
#define HORIZONTAL 0x1
#define VERTICAL 0x2
static gint tileactions[MAX_SEGS][MAX_SEGS];
/* What actions buttons toggled */
static gint do_horz = FALSE;
static gint do_vert = FALSE;
static gint opacity = 100;
/* Stuff for the preview bit */
static gint sel_x1, sel_y1, sel_x2, sel_y2;
static gint sel_width, sel_height;
static gint preview_width, preview_height;
static gboolean has_alpha;
MAIN ()
static void
query (void)
{
static const 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, "num-tiles", "Number of tiles to make" }
};
gimp_install_procedure (PLUG_IN_PROC,
N_("Tile image into smaller versions of the original"),
"More here later",
"Andy Thomas",
"Andy Thomas",
"1997",
N_("_Small Tiles..."),
"RGB*, GRAY*",
GIMP_PLUGIN,
G_N_ELEMENTS (args), 0,
args, NULL);
gimp_plugin_menu_register (PLUG_IN_PROC, "<Image>/Filters/Map");
}
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;
gint pwidth, pheight;
run_mode = param[0].data.d_int32;
INIT_I18N ();
*nreturn_vals = 1;
*return_vals = values;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = status;
tileitdrawable = drawable = gimp_drawable_get (param[2].data.d_drawable);
gimp_tile_cache_ntiles (drawable->ntile_cols + 1);
has_alpha = gimp_drawable_has_alpha (tileitdrawable->drawable_id);
if (! gimp_drawable_mask_intersect (drawable->drawable_id,
&sel_x1, &sel_y1, &sel_x2, &sel_y2))
{
g_message (_("Region selected for filter is empty."));
return;
}
sel_width = sel_x2 - sel_x1;
sel_height = sel_y2 - sel_y1;
/* Calculate preview size */
if (sel_width > sel_height)
{
pwidth = MIN (sel_width, PREVIEW_SIZE);
pheight = sel_height * pwidth / sel_width;
}
else
{
pheight = MIN (sel_height, PREVIEW_SIZE);
pwidth = sel_width * pheight / sel_height;
}
preview_width = MAX (pwidth, 2); /* Min size is 2 */
preview_height = MAX (pheight, 2);
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
gimp_get_data (PLUG_IN_PROC, &itvals);
if (! tileit_dialog ())
{
gimp_drawable_detach (drawable);
return;
}
break;
case GIMP_RUN_NONINTERACTIVE:
if (nparams != 4)
{
status = GIMP_PDB_CALLING_ERROR;
}
else
{
itvals.numtiles = param[3].data.d_int32;
}
break;
case GIMP_RUN_WITH_LAST_VALS:
gimp_get_data (PLUG_IN_PROC, &itvals);
break;
default:
break;
}
if (gimp_drawable_is_rgb (drawable->drawable_id) ||
gimp_drawable_is_gray (drawable->drawable_id))
{
/* Set the tile cache size */
gimp_progress_init (_("Tiling"));
do_tiles ();
if (run_mode != GIMP_RUN_NONINTERACTIVE)
gimp_displays_flush ();
if (run_mode == GIMP_RUN_INTERACTIVE)
gimp_set_data (PLUG_IN_PROC, &itvals, sizeof (TileItVals));
}
else
{
status = GIMP_PDB_EXECUTION_ERROR;
}
values[0].data.d_status = status;
gimp_drawable_detach (drawable);
}
static gboolean
tileit_dialog (void)
{
GtkWidget *dlg;
GtkWidget *main_vbox;
GtkWidget *hbox;
GtkWidget *vbox;
GtkWidget *frame;
GtkWidget *table;
GtkWidget *table2;
GtkWidget *button;
GtkWidget *label;
GtkWidget *spinbutton;
GtkObject *adj;
GtkObject *scale;
GtkWidget *toggle;
GSList *orientation_group = NULL;
gboolean run;
gimp_ui_init (PLUG_IN_BINARY, TRUE);
cache_preview (); /* Get the preview image */
dlg = gimp_dialog_new (_("Small Tiles"), 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 (dlg),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gimp_window_set_transient (GTK_WINDOW (dlg));
main_vbox = gtk_vbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), main_vbox,
TRUE, TRUE, 0);
gtk_widget_show (main_vbox);
hbox = gtk_hbox_new (FALSE, 12);
gtk_box_pack_start (GTK_BOX (main_vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
vbox = gtk_vbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (hbox), vbox, FALSE, FALSE, 0);
gtk_widget_show (vbox);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
tint.preview = gimp_preview_area_new ();
gtk_widget_set_size_request (tint.preview, preview_width, preview_height);
gtk_widget_set_events (GTK_WIDGET (tint.preview), PREVIEW_MASK);
gtk_container_add (GTK_CONTAINER (frame), tint.preview);
gtk_widget_show (tint.preview);
g_signal_connect_after (tint.preview, "expose-event",
G_CALLBACK (tileit_preview_expose),
NULL);
g_signal_connect (tint.preview, "event",
G_CALLBACK (tileit_preview_events),
NULL);
/* Area for buttons etc */
frame = gimp_frame_new (_("Flip"));
gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
vbox = gtk_vbox_new (FALSE, 12);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
hbox = gtk_hbox_new (TRUE, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
toggle = gtk_check_button_new_with_mnemonic (_("_Horizontal"));
gtk_box_pack_start (GTK_BOX (hbox), toggle, TRUE, TRUE, 0);
gtk_widget_show (toggle);
g_signal_connect (toggle, "toggled",
G_CALLBACK (tileit_hvtoggle_update),
&do_horz);
res_call.htoggle = toggle;
toggle = gtk_check_button_new_with_mnemonic (_("_Vertical"));
gtk_box_pack_start (GTK_BOX (hbox), toggle, TRUE, TRUE, 0);
gtk_widget_show (toggle);
g_signal_connect (toggle, "toggled",
G_CALLBACK (tileit_hvtoggle_update),
&do_vert);
res_call.vtoggle = toggle;
button = gtk_button_new_from_stock (GIMP_STOCK_RESET);
gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (tileit_reset),
&res_call);
/* Table for the inner widgets..*/
table = gtk_table_new (4, 4, 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 (vbox), table, FALSE, FALSE, 0);
gtk_widget_show (table);
toggle = gtk_radio_button_new_with_mnemonic (orientation_group,
_("A_ll tiles"));
orientation_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (toggle));
gtk_table_attach (GTK_TABLE (table), toggle, 0, 4, 0, 1,
GTK_FILL | GTK_EXPAND, GTK_FILL, 0, 0);
gtk_widget_show (toggle);
g_object_set_data (G_OBJECT (toggle), "gimp-item-data",
GINT_TO_POINTER (ALL));
g_signal_connect (toggle, "toggled",
G_CALLBACK (tileit_radio_update),
&exp_call.type);
toggle = gtk_radio_button_new_with_mnemonic (orientation_group,
_("Al_ternate tiles"));
orientation_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (toggle));
gtk_table_attach (GTK_TABLE (table), toggle, 0, 4, 1, 2,
GTK_FILL | GTK_EXPAND, GTK_FILL, 0, 0);
gtk_widget_show (toggle);
g_object_set_data (G_OBJECT (toggle), "gimp-item-data",
GINT_TO_POINTER (ALT));
g_signal_connect (toggle, "toggled",
G_CALLBACK (tileit_radio_update),
&exp_call.type);
toggle = gtk_radio_button_new_with_mnemonic (orientation_group,
_("_Explicit tile"));
orientation_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (toggle));
gtk_table_attach (GTK_TABLE (table), toggle, 0, 1, 2, 4,
GTK_FILL | GTK_SHRINK, GTK_FILL, 0, 0);
gtk_widget_show (toggle);
label = gtk_label_new_with_mnemonic (_("Ro_w:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 1, 2, 2, 3,
GTK_FILL | GTK_SHRINK , GTK_FILL, 0, 0);
gtk_widget_show (label);
gtk_widget_set_sensitive (label, FALSE);
g_object_set_data (G_OBJECT (toggle), "set_sensitive", label);
spinbutton = gimp_spin_button_new (&adj, 2, 1, 6, 1, 1, 0, 1, 0);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), spinbutton);
gtk_table_attach (GTK_TABLE (table), spinbutton, 2, 3, 2, 3,
GTK_FILL | GTK_SHRINK, GTK_FILL, 0, 0);
gtk_widget_show (spinbutton);
g_signal_connect (adj, "value-changed",
G_CALLBACK (tileit_exp_update_f),
&exp_call);
exp_call.r_adj = adj;
gtk_widget_set_sensitive (spinbutton, FALSE);
g_object_set_data (G_OBJECT (label), "set_sensitive", spinbutton);
label = gtk_label_new_with_mnemonic (_("Col_umn:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_widget_show (label);
gtk_table_attach (GTK_TABLE (table), label, 1, 2, 3, 4,
GTK_FILL , GTK_FILL, 0, 0);
gtk_widget_set_sensitive (label, FALSE);
g_object_set_data (G_OBJECT (spinbutton), "set_sensitive", label);
spinbutton = gimp_spin_button_new (&adj, 2, 1, 6, 1, 1, 0, 1, 0);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), spinbutton);
gtk_table_attach (GTK_TABLE (table), spinbutton, 2, 3, 3, 4,
GTK_FILL | GTK_EXPAND, GTK_FILL, 0, 0);
gtk_widget_show (spinbutton);
g_signal_connect (adj, "value-changed",
G_CALLBACK (tileit_exp_update_f),
&exp_call);
exp_call.c_adj = adj;
gtk_widget_set_sensitive (spinbutton, FALSE);
g_object_set_data (G_OBJECT (label), "set_sensitive", spinbutton);
g_object_set_data (G_OBJECT (toggle), "gimp-item-data",
GINT_TO_POINTER (EXPLICT));
g_signal_connect (toggle, "toggled",
G_CALLBACK (tileit_radio_update),
&exp_call.type);
button = gtk_button_new_from_stock (GTK_STOCK_APPLY);
gtk_table_attach (GTK_TABLE (table), button, 3, 4, 2, 4, 0, 0, 0, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (tileit_exp_update),
&exp_call);
exp_call.applybut = button;
gtk_widget_set_sensitive (button, FALSE);
g_object_set_data (G_OBJECT (spinbutton), "set_sensitive", button);
/* Widget for selecting the Opacity */
table2 = gtk_table_new (1, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table2), 6);
gtk_box_pack_start (GTK_BOX (vbox), table2, FALSE, FALSE, 0);
gtk_widget_show (table2);
scale = gimp_scale_entry_new (GTK_TABLE (table2), 0, 0,
_("O_pacity:"), SCALE_WIDTH, -1,
opacity, 0, 100, 1, 10, 0,
TRUE, 0, 0,
NULL, NULL);
g_signal_connect (scale, "value-changed",
G_CALLBACK (tileit_scale_update),
&opacity);
/* Lower frame saying howmany segments */
frame = gimp_frame_new (_("Number of Segments"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
table = gtk_table_new (1, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_container_add (GTK_CONTAINER (frame), table);
gtk_widget_show (table);
gtk_widget_set_sensitive (table2, has_alpha);
scale = gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
"_n²", SCALE_WIDTH, -1,
itvals.numtiles, 2, MAX_SEGS, 1, 1, 0,
TRUE, 0, 0,
NULL, NULL);
g_signal_connect (scale, "value-changed",
G_CALLBACK (tileit_scale_update),
&itvals.numtiles);
gtk_widget_show (dlg);
dialog_update_preview ();
run = (gimp_dialog_run (GIMP_DIALOG (dlg)) == GTK_RESPONSE_OK);
gtk_widget_destroy (dlg);
return run;
}
static void
tileit_hvtoggle_update (GtkWidget *widget,
gpointer data)
{
gimp_toggle_button_update (widget, data);
switch (exp_call.type)
{
case ALL:
/* Clear current settings */
memset (tileactions, 0, sizeof (tileactions));
all_update ();
break;
case ALT:
/* Clear current settings */
memset (tileactions, 0, sizeof (tileactions));
alt_update ();
break;
case EXPLICT:
break;
}
dialog_update_preview ();
}
static void
draw_explict_sel (void)
{
if (exp_call.type == EXPLICT)
{
gdouble x,y;
gdouble width = (gdouble) preview_width / (gdouble) itvals.numtiles;
gdouble height = (gdouble) preview_height / (gdouble) itvals.numtiles;
x = width * (exp_call.x - 1);
y = height * (exp_call.y - 1);
gdk_gc_set_function (tint.preview->style->black_gc, GDK_INVERT);
gdk_draw_rectangle (tint.preview->window,
tint.preview->style->black_gc,
0,
(gint) x,
(gint) y,
(gint) width,
(gint) height);
gdk_draw_rectangle (tint.preview->window,
tint.preview->style->black_gc,
0,
(gint) x + 1,
(gint) y + 1,
(gint) width - 2,
(gint) height - 2);
gdk_draw_rectangle (tint.preview->window,
tint.preview->style->black_gc,
0,
(gint) x + 2,
(gint) y + 2,
(gint) width - 4,
(gint) height - 4);
gdk_gc_set_function (tint.preview->style->black_gc, GDK_COPY);
}
}
static gint
tileit_preview_expose (GtkWidget *widget,
GdkEvent *event)
{
draw_explict_sel ();
return FALSE;
}
static void
exp_need_update (gint nx,
gint ny)
{
if (nx <= 0 || nx > itvals.numtiles || ny <= 0 || ny > itvals.numtiles)
return;
if (nx != exp_call.x || ny != exp_call.y)
{
draw_explict_sel (); /* Clear old 'un */
exp_call.x = nx;
exp_call.y = ny;
draw_explict_sel ();
g_signal_handlers_block_by_func (exp_call.c_adj,
tileit_exp_update_f,
&exp_call);
g_signal_handlers_block_by_func (exp_call.r_adj,
tileit_exp_update_f,
&exp_call);
gtk_adjustment_set_value (GTK_ADJUSTMENT (exp_call.c_adj), nx);
gtk_adjustment_set_value (GTK_ADJUSTMENT (exp_call.r_adj), ny);
g_signal_handlers_unblock_by_func (exp_call.c_adj,
tileit_exp_update_f,
&exp_call);
g_signal_handlers_unblock_by_func (exp_call.r_adj,
tileit_exp_update_f,
&exp_call);
}
}
static gboolean
tileit_preview_events (GtkWidget *widget,
GdkEvent *event)
{
GdkEventButton *bevent;
GdkEventMotion *mevent;
gint nx, ny;
gint twidth = preview_width / itvals.numtiles;
gint theight = preview_height / itvals.numtiles;
switch (event->type)
{
case GDK_EXPOSE:
break;
case GDK_BUTTON_PRESS:
bevent = (GdkEventButton *) event;
nx = bevent->x/twidth + 1;
ny = bevent->y/theight + 1;
exp_need_update (nx, ny);
break;
case GDK_MOTION_NOTIFY:
mevent = (GdkEventMotion *) event;
if ( !mevent->state )
break;
if (mevent->x < 0 || mevent->y < 0)
break;
nx = mevent->x/twidth + 1;
ny = mevent->y/theight + 1;
exp_need_update (nx, ny);
break;
default:
break;
}
return FALSE;
}
static void
explict_update (gboolean settile)
{
gint x,y;
/* Make sure bounds are OK */
y = ROUND (GTK_ADJUSTMENT (exp_call.r_adj)->value);
if (y > itvals.numtiles || y <= 0)
{
y = itvals.numtiles;
}
x = ROUND (GTK_ADJUSTMENT (exp_call.c_adj)->value);
if (x > itvals.numtiles || x <= 0)
{
x = itvals.numtiles;
}
/* Set it */
if (settile)
tileactions[x-1][y-1] = (((do_horz) ? HORIZONTAL : 0) |
((do_vert) ? VERTICAL : 0));
exp_call.x = x;
exp_call.y = y;
}
static void
all_update (void)
{
gint x,y;
for (x = 0 ; x < MAX_SEGS; x++)
for (y = 0 ; y < MAX_SEGS; y++)
tileactions[x][y] |= (((do_horz) ? HORIZONTAL : 0) |
((do_vert) ? VERTICAL : 0));
}
static void
alt_update (void)
{
gint x,y;
for (x = 0 ; x < MAX_SEGS; x++)
for (y = 0 ; y < MAX_SEGS; y++)
if (!((x + y) % 2))
tileactions[x][y] |= (((do_horz) ? HORIZONTAL : 0) |
((do_vert) ? VERTICAL : 0));
}
static void
tileit_radio_update (GtkWidget *widget,
gpointer data)
{
gimp_radio_button_update (widget, data);
if (GTK_TOGGLE_BUTTON (widget)->active)
{
switch (exp_call.type)
{
case ALL:
/* Clear current settings */
memset (tileactions, 0, sizeof (tileactions));
all_update ();
break;
case ALT:
/* Clear current settings */
memset (tileactions, 0, sizeof (tileactions));
alt_update ();
break;
case EXPLICT:
explict_update (FALSE);
break;
}
dialog_update_preview ();
}
}
static void
tileit_scale_update (GtkAdjustment *adjustment,
gpointer data)
{
gimp_int_adjustment_update (adjustment, data);
dialog_update_preview ();
}
static void
tileit_reset (GtkWidget *widget,
gpointer data)
{
Reset_Call *r = (Reset_Call *) data;
memset (tileactions, 0, sizeof (tileactions));
g_signal_handlers_block_by_func (r->htoggle,
tileit_hvtoggle_update,
&do_horz);
g_signal_handlers_block_by_func (r->vtoggle,
tileit_hvtoggle_update,
&do_vert);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (r->htoggle), FALSE);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (r->vtoggle), FALSE);
g_signal_handlers_unblock_by_func (r->htoggle,
tileit_hvtoggle_update,
&do_horz);
g_signal_handlers_unblock_by_func (r->vtoggle,
tileit_hvtoggle_update,
&do_vert);
do_horz = do_vert = FALSE;
dialog_update_preview ();
}
/* Could avoid almost dup. functions by using a field in the data
* passed. Must still pass the data since used in sig blocking func.
*/
static void
tileit_exp_update (GtkWidget *widget,
gpointer applied)
{
explict_update (TRUE);
dialog_update_preview ();
}
static void
tileit_exp_update_f (GtkWidget *widget,
gpointer applied)
{
explict_update (FALSE);
dialog_update_preview ();
}
/* Cache the preview image - updates are a lot faster. */
/* The preview_cache will contain the small image */
static void
cache_preview (void)
{
GimpPixelRgn src_rgn;
gint y,x;
guchar *src_rows;
guchar *p;
gboolean isgrey = FALSE;
gimp_pixel_rgn_init (&src_rgn, tileitdrawable,
sel_x1, sel_y1, sel_width, sel_height, FALSE, FALSE);
src_rows = g_new (guchar, sel_width * 4);
p = tint.pv_cache = g_new (guchar, preview_width * preview_height * 4);
tint.img_bpp = gimp_drawable_bpp (tileitdrawable->drawable_id);
if (tint.img_bpp < 3)
{
tint.img_bpp = 3 + (has_alpha ? 1 : 0);
}
isgrey = gimp_drawable_is_gray (tileitdrawable->drawable_id);
for (y = 0; y < preview_height; y++)
{
gimp_pixel_rgn_get_row (&src_rgn,
src_rows,
sel_x1,
sel_y1 + (y * sel_height) / preview_height,
sel_width);
for (x = 0; x < (preview_width); x ++)
{
/* Get the pixels of each col */
gint i;
for (i = 0 ; i < 3; i++)
p[x * tint.img_bpp + i] =
src_rows[((x * sel_width) / preview_width) * src_rgn.bpp +
((isgrey) ? 0 : i)];
if (has_alpha)
p[x * tint.img_bpp + 3] =
src_rows[((x * sel_width) / preview_width) * src_rgn.bpp +
((isgrey) ? 1 : 3)];
}
p += (preview_width * tint.img_bpp);
}
g_free (src_rows);
}
static void
do_tiles(void)
{
GimpPixelRgn dest_rgn;
gpointer pr;
gint progress, max_progress;
guchar *dest_row;
guchar *dest;
gint row, col;
gint bpp;
guchar pixel[4];
gint nc, nr;
gint i;
GimpPixelFetcher *pft;
/* Initialize pixel region */
pft = gimp_pixel_fetcher_new (tileitdrawable, FALSE);
gimp_pixel_rgn_init (&dest_rgn, tileitdrawable,
sel_x1, sel_y1, sel_width, sel_height, TRUE, TRUE);
progress = 0;
max_progress = sel_width * sel_height;
img_bpp = gimp_drawable_bpp (tileitdrawable->drawable_id);
bpp = (has_alpha) ? img_bpp - 1 : img_bpp;
for (pr = gimp_pixel_rgns_register(1, &dest_rgn);
pr != NULL;
pr = gimp_pixel_rgns_process(pr))
{
dest_row = dest_rgn.data;
for (row = dest_rgn.y; row < (dest_rgn.y + dest_rgn.h); row++)
{
dest = dest_row;
for (col = dest_rgn.x; col < (dest_rgn.x + dest_rgn.w); col++)
{
gint an_action;
an_action = tiles_xy (sel_width,
sel_height,
col-sel_x1,row-sel_y1,
&nc,&nr);
gimp_pixel_fetcher_get_pixel (pft, nc + sel_x1, nr + sel_y1,
pixel);
for (i = 0; i < bpp; i++)
*dest++ = pixel[i];
if (has_alpha)
*dest++ = (pixel[bpp] * opacity) / 100;
}
dest_row += dest_rgn.rowstride;
}
progress += dest_rgn.w * dest_rgn.h;
gimp_progress_update ((double) progress / max_progress);
}
gimp_pixel_fetcher_destroy (pft);
gimp_drawable_flush (tileitdrawable);
gimp_drawable_merge_shadow (tileitdrawable->drawable_id, TRUE);
gimp_drawable_update (tileitdrawable->drawable_id,
sel_x1, sel_y1, sel_width, sel_height);
}
/* Get the xy pos and any action */
static gint
tiles_xy (gint width,
gint height,
gint x,
gint y,
gint *nx,
gint *ny)
{
gint px,py;
gint rnum,cnum;
gint actiontype;
gdouble rnd = 1 - (1.0 / (gdouble) itvals.numtiles) + 0.01;
rnum = y * itvals.numtiles / height;
py = (y * itvals.numtiles) % height;
px = (x * itvals.numtiles) % width;
cnum = x * itvals.numtiles / width;
if ((actiontype = tileactions[cnum][rnum]))
{
if (actiontype & VERTICAL)
{
gdouble pyr;
pyr = height - y - 1 + rnd;
py = ((gint) (pyr * (gdouble) itvals.numtiles)) % height;
}
if (actiontype & HORIZONTAL)
{
gdouble pxr;
pxr = width - x - 1 + rnd;
px = ((gint) (pxr * (gdouble) itvals.numtiles)) % width;
}
}
*nx = px;
*ny = py;
return(actiontype);
}
/* Given a row then srink it down a bit */
static void
do_tiles_preview (guchar *dest_row,
guchar *src_rows,
gint width,
gint dh,
gint height,
gint bpp)
{
gint x;
gint i;
gint px, py;
gint rnum,cnum;
gint actiontype;
gdouble rnd = 1 - (1.0 / (gdouble) itvals.numtiles) + 0.01;
rnum = dh * itvals.numtiles / height;
for (x = 0; x < width; x ++)
{
py = (dh*itvals.numtiles)%height;
px = (x*itvals.numtiles)%width;
cnum = x*itvals.numtiles/width;
if ((actiontype = tileactions[cnum][rnum]))
{
if (actiontype & VERTICAL)
{
gdouble pyr;
pyr = height - dh - 1 + rnd;
py = ((int)(pyr*(gdouble)itvals.numtiles))%height;
}
if (actiontype & HORIZONTAL)
{
gdouble pxr;
pxr = width - x - 1 + rnd;
px = ((int)(pxr*(gdouble)itvals.numtiles))%width;
}
}
for (i = 0 ; i < bpp; i++ )
dest_row[x*tint.img_bpp+i] =
src_rows[(px + (py*width))*bpp+i];
if (has_alpha)
dest_row[x*tint.img_bpp + (bpp - 1)] =
(dest_row[x*tint.img_bpp + (bpp - 1)]*opacity)/100;
}
}
static void
dialog_update_preview (void)
{
gint y;
guchar *buffer;
buffer = g_new (guchar, preview_width * preview_height * tint.img_bpp);
for (y = 0; y < preview_height; y++)
{
do_tiles_preview (tint.preview_row,
tint.pv_cache,
preview_width,
y,
preview_height,
tint.img_bpp);
memcpy (buffer + y* (preview_width * tint.img_bpp),
tint.preview_row,
preview_width * tint.img_bpp);
}
gimp_preview_area_draw (GIMP_PREVIEW_AREA (tint.preview),
0, 0, preview_width, preview_height,
(tint.img_bpp>3)?GIMP_RGBA_IMAGE:GIMP_RGB_IMAGE,
buffer,
preview_width * tint.img_bpp);
g_free (buffer);
draw_explict_sel ();
gtk_widget_queue_draw (tint.preview);
}
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