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gimp/plug-ins/common/gtm.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* GTM plug-in --- GIMP Table Magic
* Allows images to be saved as HTML tables with different colored cells.
* It doesn't have very much practical use other than being able to
* easily design a table by "painting" it in GIMP, or to make small HTML
* table images/icons.
*
* Copyright (C) 1997 Daniel Dunbar
* Email: ddunbar@diads.com
* WWW: http://millennium.diads.com/gimp/
*
* 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.
*/
/* Version 1.0:
* Once I first found out that it was possible to have pixel level control
* of HTML tables I instantly realized that it would be possible, however
* pointless, to save an image as a, albeit huge, HTML table.
*
* One night when I was feeling in an adventourously stupid programming mood
* I decided to write a program to do it.
*
* At first I just wrote a really ugly hack to do it, which I then planned
* on using once just to see how it worked, and then posting a URL and
* laughing about it on #gimp. As it turns out, tigert thought it actually
* had potential to be a useful plugin, so I started adding features and
* and making a nice UI.
*
* It's still not very useful, but I did manage to significantly improve my
* C programming skills in the process, so it was worth it.
*
* If you happen to find it usefull I would appreciate any email about it.
* - Daniel Dunbar
* ddunbar@diads.com
*/
#include "config.h"
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <gtk/gtk.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "libgimp/stdplugins-intl.h"
/* Typedefs */
typedef struct
{
gchar captiontxt[256];
gchar cellcontent[256];
gchar clwidth[256];
gchar clheight[256];
gint fulldoc;
gint caption;
gint border;
gint spantags;
gint tdcomp;
gint cellpadding;
gint cellspacing;
} GTMValues;
/* Variables */
static GTMValues gtmvals =
{
"Made with GIMP Table Magic", /* caption text */
"&nbsp;", /* cellcontent text */
"", /* cell width text */
"", /* cell height text */
1, /* fulldoc */
0, /* caption */
2, /* border */
0, /* spantags */
0, /* tdcomp */
4, /* cellpadding */
0 /* cellspacing */
};
/* Declare some local functions */
static void query (void);
static void run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static gboolean save_image (const gchar *filename,
GimpDrawable *drawable);
static gboolean save_dialog (gint32 image_ID);
static gboolean color_comp (guchar *buffer,
guchar *buf2);
static void gtm_caption_callback (GtkWidget *widget,
gpointer data);
static void gtm_cellcontent_callback (GtkWidget *widget,
gpointer data);
static void gtm_clwidth_callback (GtkWidget *widget,
gpointer data);
static void gtm_clheight_callback (GtkWidget *widget,
gpointer data);
GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
MAIN ()
static void
query (void)
{
static GimpParamDef save_args[] =
{
{ GIMP_PDB_INT32, "run_mode", "Interactive" },
{ GIMP_PDB_IMAGE, "image", "Input image" },
{ GIMP_PDB_DRAWABLE, "drawable", "Drawable to save" },
{ GIMP_PDB_STRING, "filename", "The name of the file to save the image in" },
{ GIMP_PDB_STRING, "raw_filename", "The name of the file to save the image in" }
};
gimp_install_procedure ("file_GTM_save",
"GIMP Table Magic",
"Allows you to draw an HTML table in GIMP. See help for more info.",
"Daniel Dunbar",
"Daniel Dunbar",
"1998",
"<Save>/HTML",
"RGB*, GRAY*",
GIMP_PLUGIN,
G_N_ELEMENTS (save_args), 0,
save_args, NULL);
gimp_register_save_handler ("file_GTM_save",
"html,htm",
"");
}
static void
run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[2];
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
GimpDrawable *drawable;
INIT_I18N ();
drawable = gimp_drawable_get (param[2].data.d_int32);
*nreturn_vals = 1;
*return_vals = values;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR;
gimp_get_data ("file_GTM_save", &gtmvals);
if (save_dialog (param[1].data.d_int32))
{
if (save_image (param[3].data.d_string, drawable))
{
gimp_set_data ("file_GTM_save", &gtmvals, sizeof (GTMValues));
}
else
{
status = GIMP_PDB_EXECUTION_ERROR;
}
}
else
{
status = GIMP_PDB_CANCEL;
}
values[0].data.d_status = status;
}
static gboolean
save_image (const gchar *filename,
GimpDrawable *drawable)
{
gint row,col, cols, rows, x, y;
gint colcount, colspan, rowspan;
gint *palloc;
guchar *buffer, *buf2;
gchar *width, *height;
GimpPixelRgn pixel_rgn;
gchar *name;
FILE *fp;
palloc = g_new (int, drawable->width * drawable->height);
fp = fopen (filename, "w");
if (! fp)
{
g_message (_("Could not open '%s' for writing: %s"),
gimp_filename_to_utf8 (filename), g_strerror (errno));
return FALSE;
}
if (gtmvals.fulldoc)
{
fprintf (fp, "<HTML>\n<HEAD><TITLE>%s</TITLE></HEAD>\n<BODY>\n",
filename);
fprintf (fp, "<H1>%s</H1>\n",
filename);
}
fprintf (fp, "<TABLE BORDER=%d CELLPADDING=%d CELLSPACING=%d>\n",
gtmvals.border, gtmvals.cellpadding, gtmvals.cellspacing);
if (gtmvals.caption)
fprintf (fp, "<CAPTION>%s</CAPTION>\n",
gtmvals.captiontxt);
name = g_strdup_printf (_("Saving '%s'..."),
gimp_filename_to_utf8 (filename));
gimp_progress_init (name);
g_free (name);
gimp_pixel_rgn_init (&pixel_rgn, drawable,
0, 0, drawable->width, drawable->height,
FALSE, FALSE);
cols = drawable->width;
rows = drawable->height;
buffer = g_new (guchar, drawable->bpp);
buf2 = g_new (guchar, drawable->bpp);
width = g_malloc (2);
height = g_malloc (2);
sprintf (width, " ");
sprintf (height, " ");
if (strcmp (gtmvals.clwidth, "") != 0)
{
width = g_malloc (strlen (gtmvals.clwidth) + 11);
sprintf (width," WIDTH=\"%s\"", gtmvals.clwidth);
}
if (strcmp (gtmvals.clheight, "") != 0)
{
height = g_malloc (strlen (gtmvals.clheight) + 13);
sprintf (height, " HEIGHT=\"%s\" ", gtmvals.clheight);
}
/* Initialize array to hold ROWSPAN and COLSPAN cell allocation table */
for (row = 0; row < rows; row++)
for (col = 0; col < cols; col++)
palloc[drawable->width * row + col] = 1;
colspan = 0;
rowspan = 0;
for (y = 0; y < rows; y++)
{
fprintf (fp," <TR>\n");
for (x = 0; x < cols; x++)
{
gimp_pixel_rgn_get_pixel (&pixel_rgn, buffer, x, y);
/* Determine ROWSPAN and COLSPAN */
if (gtmvals.spantags)
{
col = x;
row = y;
colcount = 0;
colspan = 0;
rowspan = 0;
gimp_pixel_rgn_get_pixel (&pixel_rgn, buf2, col, row);
while (color_comp (buffer,buf2) &&
palloc[drawable->width * row + col] == 1 &&
row < drawable->height)
{
while (color_comp (buffer,buf2) &&
palloc[drawable->width * row + col] == 1 &&
col < drawable->width )
{
colcount++;
col++;
gimp_pixel_rgn_get_pixel (&pixel_rgn, buf2, col, row);
}
if (colcount != 0)
{
row++;
rowspan++;
}
if (colcount < colspan || colspan == 0)
colspan = colcount;
col = x;
colcount = 0;
gimp_pixel_rgn_get_pixel (&pixel_rgn, buf2, col, row);
}
if (colspan > 1 || rowspan > 1)
{
for (row = 0; row < rowspan; row++)
for (col = 0; col < colspan; col++)
palloc[drawable->width * (row + y) + (col + x)] = 0;
palloc[drawable->width * y + x] = 2;
}
}
if (palloc[drawable->width * y + x] == 1)
fprintf (fp, " <TD%s%sBGCOLOR=#%02x%02x%02x>",
width, height, buffer[0], buffer[1], buffer[2]);
if (palloc[drawable->width * y + x] == 2)
fprintf (fp," <TD ROWSPAN=\"%d\" COLSPAN=\"%d\"%s%sBGCOLOR=#%02x%02x%02x>",
rowspan, colspan, width, height,
buffer[0], buffer[1], buffer[2]);
if (palloc[drawable->width * y + x] != 0)
{
if (gtmvals.tdcomp)
fprintf (fp, "%s</TD>\n", gtmvals.cellcontent);
else
fprintf (fp, "\n %s\n </TD>\n", gtmvals.cellcontent);
}
}
fprintf (fp," </TR>\n");
gimp_progress_update ((double) y / (double) rows);
}
if (gtmvals.fulldoc)
fprintf (fp, "</TABLE></BODY></HTML>\n");
else
fprintf (fp, "</TABLE>\n");
fclose (fp);
gimp_drawable_detach (drawable);
g_free (width);
g_free (height);
g_free (palloc);
return TRUE;
}
static gint
save_dialog (gint32 image_ID)
{
GtkWidget *dlg;
GtkWidget *main_vbox;
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *table;
GtkWidget *spinbutton;
GtkObject *adj;
GtkWidget *entry;
GtkWidget *toggle;
gboolean run;
gimp_ui_init ("gtm", FALSE);
dlg = gimp_dialog_new (_("GIMP Table Magic"), "gtm",
NULL, 0,
gimp_standard_help_func, "file-gtm-save",
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
main_vbox = gtk_vbox_new (FALSE, 4);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 6);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), main_vbox,
TRUE, TRUE, 0);
if (gimp_image_width (image_ID) * gimp_image_height (image_ID) > 4096)
{
GtkWidget *eek;
GtkWidget *label;
GtkWidget *hbox;
frame = gtk_frame_new (_("Warning"));
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
hbox = gtk_hbox_new (FALSE, 4);
gtk_container_set_border_width (GTK_CONTAINER (hbox), 4);
gtk_container_add (GTK_CONTAINER (frame), hbox);
eek = gtk_image_new_from_stock (GIMP_STOCK_WILBER_EEK,
GTK_ICON_SIZE_DIALOG);
gtk_box_pack_start (GTK_BOX (hbox), eek, FALSE, FALSE, 4);
label = gtk_label_new (_("You are about to create a huge\n"
"HTML file which will most likely\n"
"crash your browser."));
gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 0);
gtk_widget_show_all (frame);
}
/* HTML Page Options */
frame = gtk_frame_new (_("HTML Page Options"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
vbox = gtk_vbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 4);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
toggle = gtk_check_button_new_with_mnemonic (_("_Generate Full HTML Document"));
gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), gtmvals.fulldoc);
gtk_widget_show (toggle);
gimp_help_set_help_data (toggle,
_("If checked GTM will output a full HTML document "
"with <HTML>, <BODY>, etc. tags instead of just "
"the table html."),
NULL);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&gtmvals.fulldoc);
gtk_widget_show (main_vbox);
gtk_widget_show (frame);
/* HTML Table Creation Options */
frame = gtk_frame_new (_("Table Creation Options"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
table = gtk_table_new (4, 2, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 4);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_container_set_border_width (GTK_CONTAINER (table), 4);
gtk_container_add (GTK_CONTAINER (frame), table);
toggle = gtk_check_button_new_with_mnemonic (_("_Use Cellspan"));
gtk_table_attach (GTK_TABLE (table), toggle, 0, 2, 0, 1, GTK_FILL, 0, 0, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), gtmvals.spantags);
gtk_widget_show (toggle);
gimp_help_set_help_data (toggle,
_("If checked GTM will replace any rectangular "
"sections of identically colored blocks with one "
"large cell with ROWSPAN and COLSPAN values."),
NULL);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&gtmvals.spantags);
toggle = gtk_check_button_new_with_mnemonic (_("Co_mpress TD tags"));
gtk_table_attach (GTK_TABLE (table), toggle, 0, 2, 1, 2, GTK_FILL, 0, 0, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), gtmvals.tdcomp);
gtk_widget_show (toggle);
gimp_help_set_help_data (toggle,
_("Checking this tag will cause GTM to leave no "
"whitespace between the TD tags and the "
"cellcontent. This is only necessary for pixel "
"level positioning control."),
NULL);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&gtmvals.tdcomp);
toggle = gtk_check_button_new_with_mnemonic (_("C_aption"));
gtk_table_attach (GTK_TABLE (table), toggle, 0, 1, 2, 3, GTK_FILL, 0, 0, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), gtmvals.caption);
gtk_widget_show (toggle);
gimp_help_set_help_data (toggle,
_("Check if you would like to have the table "
"captioned."),
NULL);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&gtmvals.caption);
entry = gtk_entry_new ();
gtk_widget_set_size_request (entry, 200, -1);
gtk_entry_set_text (GTK_ENTRY (entry), gtmvals.captiontxt);
gtk_table_attach (GTK_TABLE (table), entry, 1, 2, 2, 3,
GTK_FILL | GTK_EXPAND, 0, 0, 0);
gtk_widget_show (entry);
gimp_help_set_help_data (entry, _("The text for the table caption."), NULL);
g_signal_connect (entry, "changed",
G_CALLBACK (gtm_caption_callback),
NULL);
g_object_set_data (G_OBJECT (toggle), "set_sensitive", entry);
gtk_widget_set_sensitive (entry, gtmvals.caption);
entry = gtk_entry_new ();
gtk_widget_set_size_request (entry, 200, -1);
gtk_entry_set_text (GTK_ENTRY (entry), gtmvals.cellcontent);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 3,
_("C_ell Content:"), 1.0, 0.5,
entry, 1, FALSE);
gtk_widget_show (entry);
gimp_help_set_help_data (entry, _("The text to go into each cell."), NULL);
g_signal_connect (entry, "changed",
G_CALLBACK (gtm_cellcontent_callback),
NULL);
gtk_widget_show (table);
gtk_widget_show (frame);
/* HTML Table Options */
frame = gtk_frame_new (_("Table Options"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
table = gtk_table_new (5, 2, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 4);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_container_set_border_width (GTK_CONTAINER (table), 4);
gtk_container_add (GTK_CONTAINER (frame), table);
spinbutton = gimp_spin_button_new (&adj, gtmvals.border,
0, 1000, 1, 10, 0, 1, 0);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("_Border:"), 1.0, 0.5,
spinbutton, 1, TRUE);
gimp_help_set_help_data (spinbutton,
_("The number of pixels in the table border."),
NULL);
g_signal_connect (adj, "value_changed",
G_CALLBACK (gimp_int_adjustment_update),
&gtmvals.border);
entry = gtk_entry_new ();
gtk_widget_set_size_request (entry, 60, -1);
gtk_entry_set_text (GTK_ENTRY (entry), gtmvals.clwidth);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
_("_Width:"), 1.0, 0.5,
entry, 1, TRUE);
gimp_help_set_help_data (entry,
_("The width for each table cell. "
"Can be a number or a percent."),
NULL);
g_signal_connect (entry, "changed",
G_CALLBACK (gtm_clwidth_callback),
NULL);
entry = gtk_entry_new ();
gtk_widget_set_size_request (entry, 60, -1);
gtk_entry_set_text (GTK_ENTRY (entry), gtmvals.clheight);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 2,
_("_Height:"), 1.0, 0.5,
entry, 1, TRUE);
gimp_help_set_help_data (entry,
_("The height for each table cell. "
"Can be a number or a percent."),
NULL);
g_signal_connect (entry, "changed",
G_CALLBACK (gtm_clheight_callback),
NULL);
spinbutton = gimp_spin_button_new (&adj, gtmvals.cellpadding,
0, 1000, 1, 10, 0, 1, 0);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 3,
_("Cell-_Padding:"), 1.0, 0.5,
spinbutton, 1, TRUE);
gimp_help_set_help_data (spinbutton,
_("The amount of cellpadding."), NULL);
g_signal_connect (adj, "value_changed",
G_CALLBACK (gimp_int_adjustment_update),
&gtmvals.cellpadding);
spinbutton = gimp_spin_button_new (&adj, gtmvals.cellspacing,
0, 1000, 1, 10, 0, 1, 0);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 4,
_("Cell-_Spacing:"), 1.0, 0.5,
spinbutton, 1, TRUE);
gimp_help_set_help_data (spinbutton,
_("The amount of cellspacing."), NULL);
g_signal_connect (adj, "value_changed",
G_CALLBACK (gimp_int_adjustment_update),
&gtmvals.cellspacing);
gtk_widget_show (table);
gtk_widget_show (frame);
gtk_widget_show (dlg);
run = (gimp_dialog_run (GIMP_DIALOG (dlg)) == GTK_RESPONSE_OK);
gtk_widget_destroy (dlg);
return run;
}
static gboolean
color_comp (guchar *buffer,
guchar *buf2)
{
return buffer[0] == buf2[0] && buffer[1] == buf2[1] && buffer[2] == buf2[2];
}
/* Save interface functions */
static void
gtm_caption_callback (GtkWidget *widget,
gpointer data)
{
strcpy (gtmvals.captiontxt, gtk_entry_get_text (GTK_ENTRY (widget)));
}
static void
gtm_cellcontent_callback (GtkWidget *widget,
gpointer data)
{
strcpy (gtmvals.cellcontent, gtk_entry_get_text (GTK_ENTRY (widget)));
}
static void
gtm_clwidth_callback (GtkWidget *widget,
gpointer data)
{
strcpy (gtmvals.clwidth, gtk_entry_get_text (GTK_ENTRY (widget)));
}
static void
gtm_clheight_callback (GtkWidget *widget,
gpointer data)
{
strcpy (gtmvals.clheight, gtk_entry_get_text (GTK_ENTRY (widget)));
}
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