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gimp/plug-ins/common/grid.c
Sven Neumann cc58abd365 extended gauss_blur functionality and a few other minor hacks 
--Sven
2000-01-18 21:01:45 +00:00

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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.
*/
/* Original plug-in coded by Tim Newsome.
*
* Changed to make use of real-life units by Sven Neumann <sven@gimp.org>.
*
* The interface code is heavily commented in the hope that it will
* help other plug-in developers to adapt their plug-ins to make use
* of the gimp_size_entry functionality.
*
* For more info see libgimp/gimpsizeentry.h
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <gtk/gtk.h>
#include "libgimp/gimp.h"
#include "libgimp/gimpui.h"
#include "libgimp/stdplugins-intl.h"
#define SPIN_BUTTON_WIDTH 75
#define COLOR_BUTTON_WIDTH 55
/* Declare local functions. */
static void query (void);
static void run (char *name,
int nparams,
GParam *param,
int *nreturn_vals,
GParam **return_vals);
static gint dialog (gint32 image_ID, GDrawable *drawable);
static void doit (GDrawable *drawable);
GPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
gint sx1, sy1, sx2, sy2;
gint run_flag = FALSE;
GtkWidget *hcolor_button;
GtkWidget *vcolor_button;
typedef struct
{
gint hwidth;
gint hspace;
gint hoffset;
guint8 hcolor[4];
gint vwidth;
gint vspace;
gint voffset;
guint8 vcolor[4];
gint iwidth;
gint ispace;
gint ioffset;
guint8 icolor[4];
}
Config;
Config grid_cfg =
{
1, 16, 8, { 0, 0, 128, 255 }, /* horizontal */
1, 16, 8, { 0, 0, 128, 255 }, /* vertical */
0, 2, 6, { 0, 0, 255, 255 }, /* intersection */
};
MAIN ()
static
void query (void)
{
static GParamDef args[] =
{
{PARAM_INT32, "run_mode", "Interactive, non-interactive"},
{PARAM_IMAGE, "image", "Input image"},
{PARAM_DRAWABLE, "drawable", "Input drawable"},
{PARAM_INT32, "hwidth", "Horizontal Width"},
{PARAM_INT32, "hspace", "Horizontal Spacing"},
{PARAM_INT32, "hoffset", "Horizontal Offset"},
{PARAM_COLOR, "hcolor", "Horizontal Colour"},
{PARAM_INT8, "hopacity", "Horizontal Opacity (0...255)"},
{PARAM_INT32, "vwidth", "Vertical Width"},
{PARAM_INT32, "vspace", "Vertical Spacing"},
{PARAM_INT32, "voffset", "Vertical Offset"},
{PARAM_COLOR, "vcolor", "Vertical Colour"},
{PARAM_INT8, "vopacity", "Vertical Opacity (0...255)"},
{PARAM_INT32, "iwidth", "Intersection Width"},
{PARAM_INT32, "ispace", "Intersection Spacing"},
{PARAM_INT32, "ioffset", "Intersection Offset"},
{PARAM_COLOR, "icolor", "Intersection Colour"},
{PARAM_INT8, "iopacity", "Intersection Opacity (0...255)"},
};
static GParamDef *return_vals = NULL;
static int nargs = sizeof (args) / sizeof (args[0]);
static int nreturn_vals = 0;
INIT_I18N();
gimp_install_procedure ("plug_in_grid",
_("Draws a grid."),
_("no help available"),
"Tim Newsome",
"Tim Newsome, Sven Neumann, Tom Rathborne",
"1997, 1999",
N_("<Image>/Filters/Render/Pattern/Grid..."),
"RGB*, GRAY*",
PROC_PLUG_IN,
nargs, nreturn_vals,
args, return_vals);
}
static void
run (char *name,
int n_params,
GParam *param,
int *nreturn_vals,
GParam **return_vals)
{
static GParam values[1];
GDrawable *drawable;
gint32 image_ID;
GRunModeType run_mode;
GStatusType status = STATUS_SUCCESS;
*nreturn_vals = 1;
*return_vals = values;
INIT_I18N_UI();
run_mode = param[0].data.d_int32;
image_ID = param[1].data.d_int32;
drawable = gimp_drawable_get (param[2].data.d_drawable);
if (run_mode == RUN_NONINTERACTIVE)
{
if (n_params != 18)
status = STATUS_CALLING_ERROR;
if( status == STATUS_SUCCESS)
{
grid_cfg.hwidth = param[3].data.d_int32;
grid_cfg.hspace = param[4].data.d_int32;
grid_cfg.hoffset = param[5].data.d_int32;
grid_cfg.hcolor[0] = param[6].data.d_color.red;
grid_cfg.hcolor[1] = param[6].data.d_color.green;
grid_cfg.hcolor[2] = param[6].data.d_color.blue;
grid_cfg.hcolor[3] = param[7].data.d_int8;
grid_cfg.vwidth = param[8].data.d_int32;
grid_cfg.vspace = param[9].data.d_int32;
grid_cfg.voffset = param[10].data.d_int32;
grid_cfg.vcolor[0] = param[11].data.d_color.red;
grid_cfg.vcolor[1] = param[11].data.d_color.green;
grid_cfg.vcolor[2] = param[11].data.d_color.blue;
grid_cfg.vcolor[3] = param[12].data.d_int8;
grid_cfg.iwidth = param[13].data.d_int32;
grid_cfg.ispace = param[14].data.d_int32;
grid_cfg.ioffset = param[15].data.d_int32;
grid_cfg.icolor[0] = param[16].data.d_color.red;
grid_cfg.icolor[1] = param[16].data.d_color.green;
grid_cfg.icolor[2] = param[16].data.d_color.blue;
grid_cfg.icolor[3] = param[17].data.d_int8;
}
}
else
{
/* Possibly retrieve data */
gimp_get_data ("plug_in_grid", &grid_cfg);
}
if (run_mode == RUN_INTERACTIVE)
{
if (!dialog (image_ID, drawable))
{
/* The dialog was closed, or something similarly evil happened. */
status = STATUS_EXECUTION_ERROR;
}
}
if (grid_cfg.hspace <= 0 || grid_cfg.vspace <= 0)
{
status = STATUS_EXECUTION_ERROR;
}
if (status == STATUS_SUCCESS)
{
/* Make sure that the drawable is gray or RGB color */
if (gimp_drawable_is_rgb (drawable->id) || gimp_drawable_is_gray (drawable->id))
{
gimp_progress_init (_("Drawing Grid..."));
gimp_tile_cache_ntiles (2 * (drawable->width / gimp_tile_width () + 1));
doit (drawable);
if (run_mode != RUN_NONINTERACTIVE)
gimp_displays_flush ();
if (run_mode == RUN_INTERACTIVE)
gimp_set_data ("plug_in_grid", &grid_cfg, sizeof (grid_cfg));
}
else
{
status = STATUS_EXECUTION_ERROR;
}
gimp_drawable_detach (drawable);
}
values[0].type = PARAM_STATUS;
values[0].data.d_status = status;
}
G_INLINE_FUNC void
pix_composite (guchar *p1,
guchar p2[4],
int bytes,
int alpha)
{
int b;
if (alpha)
{
bytes--;
}
for (b = 0; b < bytes; b++)
{
*p1 = *p1 * (1.0 - p2[3]/255.0) + p2[b] * p2[3]/255.0;
p1++;
}
if (alpha && *p1 < 255)
{
b = *p1 + 255.0 * ((double)p2[3] / (255.0 - *p1));
*p1 = b > 255 ? 255 : b;
}
}
static void
doit (GDrawable * drawable)
{
GPixelRgn srcPR, destPR;
gint width, height, bytes;
guchar *dest;
int x, y, alpha;
/* Get the input area. This is the bounding box of the selection in
* the image (or the entire image if there is no selection). Only
* operating on the input area is simply an optimization. It doesn't
* need to be done for correct operation. (It simply makes it go
* faster, since fewer pixels need to be operated on).
*/
gimp_drawable_mask_bounds (drawable->id, &sx1, &sy1, &sx2, &sy2);
/* Get the size of the input image.
* (This will/must be the same as the size of the output image.)
*/
width = drawable->width;
height = drawable->height;
bytes = drawable->bpp;
alpha = gimp_drawable_has_alpha (drawable->id);
/* initialize the pixel regions */
gimp_pixel_rgn_init (&srcPR, drawable, 0, 0, width, height, FALSE, FALSE);
gimp_pixel_rgn_init (&destPR, drawable, 0, 0, width, height, TRUE, TRUE);
dest = malloc (width * bytes);
for (y = sy1; y < sy2; y++)
{
gimp_pixel_rgn_get_row (&srcPR, dest, sx1, y, (sx2-sx1));
if (((y - grid_cfg.voffset + height) % grid_cfg.vspace) < grid_cfg.vwidth )
{ /* Draw row */
for (x = sx1; x < sx2; x++)
{
pix_composite ( &dest[(x-sx1) * bytes], grid_cfg.hcolor, bytes, alpha);
}
}
if (((y - grid_cfg.voffset + height + ((grid_cfg.iwidth - grid_cfg.vwidth) / 2)) % grid_cfg.vspace) < grid_cfg.iwidth )
{ /* Draw irow */
for (x = sx1; x < sx2; x++)
{
if ((((x - grid_cfg.hoffset + width - (grid_cfg.hwidth /2)) % grid_cfg.hspace) >= grid_cfg.ispace
&& ((x - grid_cfg.hoffset + width - (grid_cfg.hwidth /2)) % grid_cfg.hspace) < grid_cfg.ioffset)
|| (abs(((x - grid_cfg.hoffset + width - (grid_cfg.hwidth /2)) % grid_cfg.hspace) - grid_cfg.hspace) >= grid_cfg.ispace
&& (abs(((x - grid_cfg.hoffset + width - (grid_cfg.hwidth /2)) % grid_cfg.hspace) - grid_cfg.hspace) < grid_cfg.ioffset))) {
pix_composite ( &dest[(x-sx1) * bytes], grid_cfg.icolor, bytes, alpha);
}
}
}
for (x = sx1; x < sx2; x++)
{
if (((x - grid_cfg.hoffset + width) % grid_cfg.hspace) < grid_cfg.hwidth )
{
pix_composite ( &dest[(x-sx1) * bytes], grid_cfg.vcolor, bytes, alpha);
}
if ((((x - grid_cfg.hoffset + width + ((grid_cfg.iwidth - grid_cfg.hwidth)/ 2)) % grid_cfg.hspace) < grid_cfg.iwidth)
&& (( (((y - grid_cfg.voffset + height - (grid_cfg.vwidth / 2)) % grid_cfg.vspace) >= grid_cfg.ispace)
&& (((y - grid_cfg.voffset + height - (grid_cfg.vwidth / 2)) % grid_cfg.vspace) < grid_cfg.ioffset))
|| (( (abs(((y - grid_cfg.voffset + height - (grid_cfg.vwidth / 2)) % grid_cfg.vspace) - grid_cfg.vspace) >= grid_cfg.ispace)
&& (abs(((y - grid_cfg.voffset + height - (grid_cfg.vwidth / 2)) % grid_cfg.vspace) - grid_cfg.vspace) < grid_cfg.ioffset))
))
)
{
pix_composite ( &dest[(x-sx1) * bytes], grid_cfg.icolor, bytes, alpha);
}
}
gimp_pixel_rgn_set_row (&destPR, dest, sx1, y, (sx2-sx1) );
gimp_progress_update ((double) y / (double) (sy2 - sy1));
}
free (dest);
/* update the timred region */
gimp_drawable_flush (drawable);
gimp_drawable_merge_shadow (drawable->id, TRUE);
gimp_drawable_update (drawable->id, sx1, sy1, sx2 - sx1, sy2 - sy1);
}
/***************************************************
* GUI stuff
*/
static void
ok_callback (GtkWidget *widget,
gpointer data)
{
GtkWidget *entry;
run_flag = TRUE;
entry = gtk_object_get_data (GTK_OBJECT (data), "width");
grid_cfg.hwidth = (int)(gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 0) + 0.5);
grid_cfg.vwidth = (int)(gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 1) + 0.5);
grid_cfg.iwidth = (int)(gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 2) + 0.5);
entry = gtk_object_get_data (GTK_OBJECT (data), "space");
grid_cfg.hspace = (int)(gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 0) + 0.5);
grid_cfg.vspace = (int)(gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 1) + 0.5);
grid_cfg.ispace = (int)(gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 2) + 0.5);
entry = gtk_object_get_data (GTK_OBJECT (data), "offset");
grid_cfg.hoffset = (int)(gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 0) + 0.5);
grid_cfg.voffset = (int)(gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 1) + 0.5);
grid_cfg.ioffset = (int)(gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 2) + 0.5);
gtk_widget_destroy (GTK_WIDGET (data));
}
static void
entry_callback (GtkWidget *widget,
gpointer data)
{
static gdouble x = -1.0;
static gdouble y = -1.0;
gdouble new_x;
gdouble new_y;
new_x = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 0);
new_y = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 1);
if (gimp_chain_button_get_active (GIMP_CHAIN_BUTTON (data)))
{
if (new_x != x)
{
y = new_y = x = new_x;
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (widget), 1, y);
}
if (new_y != y)
{
x = new_x = y = new_y;
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (widget), 0, x);
}
}
else
{
if (new_x != x)
x = new_x;
if (new_y != y)
y = new_y;
}
}
static void
color_callback (GtkWidget *widget,
gpointer data)
{
gint i;
if (gimp_chain_button_get_active (GIMP_CHAIN_BUTTON (data)))
{
if (widget == hcolor_button)
{
for (i = 0; i < 4; i++)
grid_cfg.vcolor[i] = grid_cfg.hcolor[i];
gimp_color_button_update (GIMP_COLOR_BUTTON (vcolor_button));
}
else
{
for (i = 0; i < 4; i++)
grid_cfg.hcolor[i] = grid_cfg.vcolor[i];
gimp_color_button_update (GIMP_COLOR_BUTTON (hcolor_button));
}
}
}
static gint
dialog (gint32 image_ID,
GDrawable *drawable)
{
GtkWidget *dlg;
GtkWidget *button;
GtkWidget *hbox;
GtkWidget *width;
GtkWidget *space;
GtkWidget *offset;
GtkWidget *chain_button;
GtkWidget *table;
GtkWidget *align;
GUnit unit;
gdouble xres;
gdouble yres;
gchar **argv;
gint argc;
argc = 1;
argv = g_new (gchar *, 1);
argv[0] = g_strdup ("grid");
gtk_init (&argc, &argv);
gtk_rc_parse (gimp_gtkrc ());
dlg = gimp_dialog_new (_("Grid"), "grid",
gimp_plugin_help_func, "filters/grid.html",
GTK_WIN_POS_MOUSE,
FALSE, TRUE, FALSE,
_("OK"), ok_callback,
NULL, NULL, NULL, TRUE, FALSE,
_("Cancel"), gtk_widget_destroy,
NULL, 1, NULL, FALSE, TRUE,
NULL);
gtk_signal_connect (GTK_OBJECT (dlg), "destroy",
GTK_SIGNAL_FUNC (gtk_main_quit),
NULL);
/* Get the image resolution and unit */
gimp_image_get_resolution (image_ID, &xres, &yres);
unit = gimp_image_get_unit (image_ID);
/* The width entries */
hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), hbox, FALSE, FALSE, 4);
width = gimp_size_entry_new (3, /* number_of_fields */
unit, /* unit */
"%a", /* unit_format */
TRUE, /* menu_show_pixels */
TRUE, /* menu_show_percent */
FALSE, /* show_refval */
SPIN_BUTTON_WIDTH, /* spinbutton_usize */
GIMP_SIZE_ENTRY_UPDATE_SIZE); /* update_policy */
/* set the unit back to pixels, since most times we will want pixels */
gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (width), UNIT_PIXEL);
/* set the resolution to the image resolution */
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (width), 0, xres, TRUE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (width), 1, yres, TRUE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (width), 2, xres, TRUE);
/* set the size (in pixels) that will be treated as 0% and 100% */
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (width), 0, 0.0, (gdouble)(drawable->width));
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (width), 1, 0.0, (gdouble)(drawable->height));
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (width), 2, 0.0, (gdouble)(drawable->width));
/* set upper and lower limits (in pixels) */
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (width), 0, 0.0, (gdouble)(drawable->width));
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (width), 1, 0.0, (gdouble)(drawable->height));
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (width), 2, 0.0, (gdouble)(drawable->width));
gtk_table_set_col_spacing (GTK_TABLE (width), 2, 12);
gtk_table_set_col_spacing (GTK_TABLE (width), 3, 12);
/* initialize the values */
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (width), 0, (gdouble)grid_cfg.hwidth);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (width), 1, (gdouble)grid_cfg.vwidth);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (width), 2, (gdouble)grid_cfg.iwidth);
/* attach labels */
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (width), _("Horizontal"), 0, 1, 0.0);
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (width), _("Vertical"), 0, 2, 0.0);
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (width), _("Intersection"), 0, 3, 0.0);
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (width), _("Width: "), 1, 0, 0.0);
/* put a chain_button under the size_entries */
chain_button = gimp_chain_button_new (GIMP_CHAIN_BOTTOM);
if (grid_cfg.hwidth == grid_cfg.vwidth)
gimp_chain_button_set_active (GIMP_CHAIN_BUTTON (chain_button), TRUE);
gtk_table_attach_defaults (GTK_TABLE (width), chain_button, 1, 3, 2, 3);
gtk_widget_show (chain_button);
/* connect to the 'value_changed' and "unit_changed" signals because we have to
take care of keeping the entries in sync when the chainbutton is active */
gtk_signal_connect (GTK_OBJECT (width), "value_changed",
(GtkSignalFunc) entry_callback, chain_button);
gtk_signal_connect (GTK_OBJECT (width), "unit_changed",
(GtkSignalFunc) entry_callback, chain_button);
gtk_box_pack_end (GTK_BOX (hbox), width, FALSE, FALSE, 4);
gtk_widget_show (width);
gtk_widget_show (hbox);
/* The spacing entries */
hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), hbox, FALSE, FALSE, 4);
space = gimp_size_entry_new (3, /* number_of_fields */
unit, /* unit */
"%a", /* unit_format */
TRUE, /* menu_show_pixels */
TRUE, /* menu_show_percent */
FALSE, /* show_refval */
SPIN_BUTTON_WIDTH, /* spinbutton_usize */
GIMP_SIZE_ENTRY_UPDATE_SIZE); /* update_policy */
gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (space), UNIT_PIXEL);
/* set the resolution to the image resolution */
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (space), 0, xres, TRUE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (space), 1, yres, TRUE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (space), 2, xres, TRUE);
/* set the size (in pixels) that will be treated as 0% and 100% */
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (space), 0, 0.0, (gdouble)(drawable->width));
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (space), 1, 0.0, (gdouble)(drawable->height));
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (space), 2, 0.0, (gdouble)(drawable->width));
/* set upper and lower limits (in pixels) */
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (space), 0, 0.0, (gdouble)(drawable->width));
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (space), 1, 0.0, (gdouble)(drawable->height));
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (space), 2, 0.0, (gdouble)(drawable->width));
gtk_table_set_col_spacing (GTK_TABLE (space), 2, 12);
gtk_table_set_col_spacing (GTK_TABLE (space), 3, 12);
/* initialize the values */
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (space), 0, (gdouble)grid_cfg.hspace);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (space), 1, (gdouble)grid_cfg.vspace);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (space), 2, (gdouble)grid_cfg.ispace);
/* attach labels */
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (space), _("Spacing: "), 1, 0, 0.0);
/* put a chain_button under the spacing_entries */
chain_button = gimp_chain_button_new (GIMP_CHAIN_BOTTOM);
if (grid_cfg.hspace == grid_cfg.vspace)
gimp_chain_button_set_active (GIMP_CHAIN_BUTTON (chain_button), TRUE);
gtk_table_attach_defaults (GTK_TABLE (space), chain_button, 1, 3, 2, 3);
gtk_widget_show (chain_button);
/* connect to the 'value_changed' and "unit_changed" signals because we have to
take care of keeping the entries in sync when the chainbutton is active */
gtk_signal_connect (GTK_OBJECT (space), "value_changed",
(GtkSignalFunc) entry_callback, chain_button);
gtk_signal_connect (GTK_OBJECT (space), "unit_changed",
(GtkSignalFunc) entry_callback, chain_button);
gtk_box_pack_end (GTK_BOX (hbox), space, FALSE, FALSE, 4);
gtk_widget_show (space);
gtk_widget_show (hbox);
/* The offset entries */
hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), hbox, FALSE, FALSE, 4);
offset = gimp_size_entry_new (3, /* number_of_fields */
unit, /* unit */
"%a", /* unit_format */
TRUE, /* menu_show_pixels */
TRUE, /* menu_show_percent */
FALSE, /* show_refval */
SPIN_BUTTON_WIDTH, /* spinbutton_usize */
GIMP_SIZE_ENTRY_UPDATE_SIZE); /* update_policy */
gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (offset), UNIT_PIXEL);
/* set the resolution to the image resolution */
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (offset), 0, xres, TRUE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (offset), 1, yres, TRUE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (offset), 2, xres, TRUE);
/* set the size (in pixels) that will be treated as 0% and 100% */
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (offset), 0, 0.0, (gdouble)(drawable->width));
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (offset), 1, 0.0, (gdouble)(drawable->height));
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (offset), 2, 0.0, (gdouble)(drawable->width));
/* set upper and lower limits (in pixels) */
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (offset), 0, 0.0, (gdouble)(drawable->width));
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (offset), 1, 0.0, (gdouble)(drawable->height));
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (offset), 2, 0.0, (gdouble)(drawable->width));
gtk_table_set_col_spacing (GTK_TABLE (offset), 2, 12);
gtk_table_set_col_spacing (GTK_TABLE (offset), 3, 12);
/* initialize the values */
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (offset), 0, (gdouble)grid_cfg.hoffset);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (offset), 1, (gdouble)grid_cfg.voffset);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (offset), 2, (gdouble)grid_cfg.ioffset);
/* attach labels */
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (offset), _("Offset: "), 1, 0, 0.0);
/* this is a weird hack: we put a table into the offset table */
table = gtk_table_new (3, 3, FALSE);
gtk_table_attach_defaults (GTK_TABLE (offset), table, 1, 4, 2, 3);
gtk_table_set_row_spacing (GTK_TABLE (table), 0, 10);
gtk_table_set_col_spacing (GTK_TABLE (table), 1, 12);
/* put a chain_button under the offset_entries */
chain_button = gimp_chain_button_new (GIMP_CHAIN_BOTTOM);
if (grid_cfg.hoffset == grid_cfg.voffset)
gimp_chain_button_set_active (GIMP_CHAIN_BUTTON (chain_button), TRUE);
gtk_table_attach_defaults (GTK_TABLE (table), chain_button, 0, 2, 0, 1);
gtk_widget_show (chain_button);
/* connect to the 'value_changed' and "unit_changed" signals because we have to
take care of keeping the entries in sync when the chainbutton is active */
gtk_signal_connect (GTK_OBJECT (offset), "value_changed",
(GtkSignalFunc) entry_callback, chain_button);
gtk_signal_connect (GTK_OBJECT (offset), "unit_changed",
(GtkSignalFunc) entry_callback, chain_button);
/* put a chain_button under the color_buttons */
chain_button = gimp_chain_button_new (GIMP_CHAIN_BOTTOM);
if ((guint32)(*grid_cfg.hcolor) == (guint32)(*grid_cfg.vcolor))
gimp_chain_button_set_active (GIMP_CHAIN_BUTTON (chain_button), TRUE);
gtk_table_attach_defaults (GTK_TABLE (table), chain_button, 0, 2, 2, 3);
gtk_widget_show (chain_button);
/* attach color selectors */
hcolor_button = gimp_color_button_new (_("Horizontal Color"), COLOR_BUTTON_WIDTH, 16,
grid_cfg.hcolor, 4);
gtk_signal_connect (GTK_OBJECT (hcolor_button), "color_changed",
(GtkSignalFunc) color_callback, chain_button);
align = gtk_alignment_new (0.0, 0.5, 0, 0);
gtk_container_add (GTK_CONTAINER (align), hcolor_button);
gtk_table_attach_defaults (GTK_TABLE (table), align, 0, 1, 1, 2);
gtk_widget_show (hcolor_button);
gtk_widget_show (align);
vcolor_button = gimp_color_button_new (_("Vertical Color"), COLOR_BUTTON_WIDTH, 16,
grid_cfg.vcolor, 4);
gtk_signal_connect (GTK_OBJECT (vcolor_button), "color_changed",
(GtkSignalFunc) color_callback, chain_button);
align = gtk_alignment_new (0.0, 0.5, 0, 0);
gtk_container_add (GTK_CONTAINER (align), vcolor_button);
gtk_table_attach_defaults (GTK_TABLE (table), align, 1, 2, 1, 2);
gtk_widget_show (vcolor_button);
gtk_widget_show (align);
button = gimp_color_button_new (_("Intersection Color"), COLOR_BUTTON_WIDTH, 16,
grid_cfg.icolor, 4);
align = gtk_alignment_new (0.0, 0.5, 0, 0);
gtk_container_add (GTK_CONTAINER (align), button);
gtk_table_attach_defaults (GTK_TABLE (table), align, 2, 3, 1, 2);
gtk_widget_show (button);
gtk_widget_show (align);
gtk_widget_show (table);
gtk_box_pack_end (GTK_BOX (hbox), offset, FALSE, FALSE, 4);
gtk_widget_show (offset);
gtk_widget_show (hbox);
gtk_widget_show (dlg);
gtk_object_set_data (GTK_OBJECT (dlg), "width", width);
gtk_object_set_data (GTK_OBJECT (dlg), "space", space);
gtk_object_set_data (GTK_OBJECT (dlg), "offset", offset);
gtk_main ();
gdk_flush ();
return run_flag;
}
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