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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 usefull, 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 <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;
typedef struct
{
gint run;
} GTMInterface;
/* Variables */
static GTMInterface bint =
{
FALSE /* run */
};
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 (gchar *name,
gint nparams,
GParam *param,
gint *nreturn_vals,
GParam **return_vals);
static gint save_image (gchar *filename,
GDrawable *drawable);
static gint save_dialog (void);
static gint color_comp (guchar *buffer,
guchar *buf2);
static void save_ok_callback (GtkWidget *widget,
gpointer data);
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);
GPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
MAIN ()
static void
query (void)
{
static GParamDef save_args[] =
{
{ PARAM_INT32, "run_mode", "Interactive" },
{ PARAM_IMAGE, "image", "Input image" },
{ PARAM_DRAWABLE, "drawable", "Drawable to save" },
{ PARAM_STRING, "filename", "The name of the file to save the image in" },
{ PARAM_STRING, "raw_filename", "The name of the file to save the image in" },
};
static gint nsave_args = sizeof (save_args) / sizeof (save_args[0]);
INIT_I18N();
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*",
PROC_PLUG_IN,
nsave_args, 0,
save_args, NULL);
gimp_register_save_handler ("file_GTM_save",
"html,htm",
"");
}
static void
run (gchar *name,
gint nparams,
GParam *param,
gint *nreturn_vals,
GParam **return_vals)
{
static GParam values[2];
GStatusType status = STATUS_SUCCESS;
GDrawable *drawable;
INIT_I18N_UI();
drawable = gimp_drawable_get (param[2].data.d_int32);
*nreturn_vals = 1;
*return_vals = values;
values[0].type = PARAM_STATUS;
values[0].data.d_status = STATUS_EXECUTION_ERROR;
gimp_get_data ("file_GTM_save", &gtmvals);
if (save_dialog ())
{
if (save_image (param[3].data.d_string, drawable))
{
gimp_set_data ("file_GTM_save", &gtmvals, sizeof (GTMValues));
}
else
{
status = STATUS_EXECUTION_ERROR;
}
}
else
{
status = STATUS_CANCEL;
}
values[0].data.d_status = status;
}
static gint
save_image (gchar *filename,
GDrawable *drawable)
{
int row,col, cols, rows, x, y;
int colcount, colspan, rowspan;
/* This works only in gcc - not allowed according */
/* to ANSI C */
/*int palloc[drawable->width][drawable->height];*/
int *palloc;
guchar *buffer, *buf2;
gchar *width, *height;
GPixelRgn pixel_rgn;
char *name;
FILE *fp, *fopen();
palloc = malloc(drawable->width * drawable->height * sizeof(int));
fp = fopen(filename, "w");
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:"), 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 = malloc (2);
height = malloc (2);
sprintf(width," ");
sprintf(height," ");
if (strcmp (gtmvals.clwidth, "") != 0) {
width = malloc (strlen (gtmvals.clwidth) + 11);
sprintf(width," WIDTH=\"%s\"",gtmvals.clwidth);
}
if (strcmp (gtmvals.clheight, "") != 0) {
height = 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);
free(width);
free(height);
free(palloc);
return 1;
}
static gint
save_dialog (void)
{
GtkWidget *dlg;
GtkWidget *main_vbox;
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *table;
GtkWidget *spinbutton;
GtkObject *adj;
GtkWidget *entry;
GtkWidget *toggle;
gchar **argv;
gint argc;
bint.run = FALSE;
argc = 1;
argv = g_new (gchar *, 1);
argv[0] = g_strdup ("gtm");
gtk_init (&argc, &argv);
gtk_rc_parse (gimp_gtkrc ());
dlg = gimp_dialog_new (_("GIMP Table Magic"), "gtm",
gimp_plugin_help_func, "filters/gtm.html",
GTK_WIN_POS_MOUSE,
FALSE, TRUE, FALSE,
_("OK"), save_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);
/* Initialize Tooltips */
gimp_help_init ();
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);
/* HTML Page Options */
frame = gtk_frame_new (_("HTML Page Options"));
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
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_label (_("Generate Full HTML Document"));
gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
GTK_SIGNAL_FUNC (gimp_toggle_button_update),
&gtmvals.fulldoc);
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);
gtk_widget_show (main_vbox);
gtk_widget_show (frame);
/* HTML Table Creation Options */
frame = gtk_frame_new (_("Table Creation Options"));
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
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_label (_("Use Cellspan"));
gtk_table_attach (GTK_TABLE (table), toggle, 0, 2, 0, 1, GTK_FILL, 0, 0, 0);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
GTK_SIGNAL_FUNC (gimp_toggle_button_update),
&gtmvals.spantags);
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);
toggle = gtk_check_button_new_with_label (_("Compress TD tags"));
gtk_table_attach (GTK_TABLE (table), toggle, 0, 2, 1, 2, GTK_FILL, 0, 0, 0);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
GTK_SIGNAL_FUNC (gimp_toggle_button_update),
&gtmvals.tdcomp);
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);
toggle = gtk_check_button_new_with_label (_("Caption"));
gtk_table_attach (GTK_TABLE (table), toggle, 0, 1, 2, 3, GTK_FILL, 0, 0, 0);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
GTK_SIGNAL_FUNC (gimp_toggle_button_update),
&gtmvals.caption);
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);
entry = gtk_entry_new ();
gtk_table_attach (GTK_TABLE (table), entry, 1, 2, 2, 3,
GTK_FILL | GTK_EXPAND, 0, 0, 0);
gtk_widget_set_usize (entry, 200, 0);
gtk_signal_connect (GTK_OBJECT (entry), "changed",
GTK_SIGNAL_FUNC (gtm_caption_callback),
NULL);
gtk_entry_set_text (GTK_ENTRY (entry), gtmvals.captiontxt);
gtk_widget_show (entry);
gimp_help_set_help_data (entry, _("The text for the table caption."), NULL);
gtk_object_set_data (GTK_OBJECT (toggle), "set_sensitive", entry);
gtk_widget_set_sensitive (entry, gtmvals.caption);
entry = gtk_entry_new ();
gtk_widget_set_usize (entry, 200, 0);
gimp_table_attach_aligned (GTK_TABLE (table), 3,
_("Cell Content:"), 1.0, 0.5,
entry, FALSE);
gtk_signal_connect (GTK_OBJECT (entry), "changed",
GTK_SIGNAL_FUNC (gtm_cellcontent_callback),
NULL);
gtk_entry_set_text (GTK_ENTRY (entry), gtmvals.cellcontent);
gtk_widget_show (entry);
gimp_help_set_help_data (entry, _("The text to go into each cell."), NULL);
gtk_widget_show (table);
gtk_widget_show (frame);
/* HTML Table Options */
frame = gtk_frame_new (_("Table Options"));
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
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,
_("Border:"), 1.0, 0.5,
spinbutton, TRUE);
gtk_signal_connect (GTK_OBJECT (adj), "value_changed",
GTK_SIGNAL_FUNC (gimp_int_adjustment_update),
&gtmvals.border);
gimp_help_set_help_data (spinbutton,
_("The number of pixels in the table border."),
NULL);
entry = gtk_entry_new ();
gtk_widget_set_usize (entry, 60, 0);
gimp_table_attach_aligned (GTK_TABLE (table), 1,
_("Width:"), 1.0, 0.5,
entry, TRUE);
gtk_signal_connect (GTK_OBJECT (entry), "changed",
GTK_SIGNAL_FUNC (gtm_clwidth_callback),
NULL);
gtk_entry_set_text (GTK_ENTRY (entry), gtmvals.clwidth);
gimp_help_set_help_data (entry,
_("The width for each table cell. "
"Can be a number or a percent."),
NULL);
entry = gtk_entry_new ();
gtk_widget_set_usize (entry, 60, 0);
gimp_table_attach_aligned (GTK_TABLE (table), 2,
_("Height:"), 1.0, 0.5,
entry, TRUE);
gtk_signal_connect (GTK_OBJECT (entry), "changed",
GTK_SIGNAL_FUNC (gtm_clheight_callback),
NULL);
gtk_entry_set_text (GTK_ENTRY (entry), gtmvals.clheight);
gimp_help_set_help_data (entry,
_("The height for each table cell. "
"Can be a number or a percent."),
NULL);
spinbutton = gimp_spin_button_new (&adj, gtmvals.cellpadding,
0, 1000, 1, 10, 0, 1, 0);
gimp_table_attach_aligned (GTK_TABLE (table), 3,
_("Cell-Padding:"), 1.0, 0.5,
spinbutton, TRUE);
gtk_signal_connect (GTK_OBJECT (adj), "value_changed",
GTK_SIGNAL_FUNC (gimp_int_adjustment_update),
&gtmvals.cellpadding);
gimp_help_set_help_data (spinbutton,
_("The amount of cellpadding."), NULL);
spinbutton = gimp_spin_button_new (&adj, gtmvals.cellspacing,
0, 1000, 1, 10, 0, 1, 0);
gimp_table_attach_aligned (GTK_TABLE (table), 4,
_("Cell-Spacing:"), 1.0, 0.5,
spinbutton, TRUE);
gtk_signal_connect (GTK_OBJECT (adj), "value_changed",
GTK_SIGNAL_FUNC (gimp_int_adjustment_update),
&gtmvals.cellspacing);
gimp_help_set_help_data (spinbutton,
_("The amount of cellspacing."), NULL);
gtk_widget_show (table);
gtk_widget_show (frame);
gtk_widget_show (dlg);
gtk_main ();
gdk_flush ();
return bint.run;
}
static gint
color_comp (guchar *buffer,
guchar *buf2)
{
if (buffer[0] == buf2[0] && buffer[1] == buf2[1] && buffer[2] == buf2[2])
return 1;
else
return 0;
}
/* Save interface functions */
static void
save_ok_callback (GtkWidget *widget,
gpointer data)
{
bint.run = TRUE;
gtk_widget_destroy (GTK_WIDGET (data));
}
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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