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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 <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "gtk/gtk.h"
#include "libgimp/gimp.h"
/* Typedefs */
typedef struct {
char captiontxt[256];
char cellcontent[256];
char clwidth[256];
char 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 (char *name,
int nparams,
GParam *param,
int *nreturn_vals,
GParam **return_vals);
static gint save_image (char *filename,
GDrawable *drawable);
static gint save_dialog ();
static gint color_comp (guchar *buffer, guchar *buf2);
static void save_close_callback (GtkWidget *widget, gpointer data);
static void gtm_entry_callback (GtkWidget *widget, gpointer data);
static void gtm_toggle_callback (GtkWidget *widget, gpointer data);
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);
static void set_tooltip (GtkTooltips *tooltips, GtkWidget *widget, const char *desc);
GPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
MAIN ()
static void
query ()
{
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 int nsave_args = sizeof (save_args) / sizeof (save_args[0]);
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", "htm,html", "");
}
static void
run (char *name,
int nparams,
GParam *param,
int *nreturn_vals,
GParam **return_vals)
{
static GParam values[2];
GDrawable *drawable;
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_CALLING_ERROR;
gimp_get_data ("file_GTM_save", &gtmvals);
if (save_dialog ()) {
save_image (param[3].data.d_string, drawable);
values[0].data.d_status = STATUS_SUCCESS;
}
gimp_set_data ("file_GTM_save", &gtmvals, sizeof (GTMValues));
}
static gint
save_image (char *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_malloc (strlen (filename) + 11);
sprintf (name, "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 ()
{
GtkWidget *dlg;
GtkWidget *button;
GtkWidget *frame;
GtkWidget *table;
GtkWidget *label;
GtkWidget *entry;
GtkWidget *toggle;
GtkTooltips *tips;
GdkColor tips_fg, tips_bg;
gchar **argv;
gchar buffer[32];
gint argc;
bint.run=FALSE;
argc = 1;
argv = g_new (gchar *, 1);
argv[0] = g_strdup ("save");
gtk_init (&argc, &argv);
gtk_rc_parse (gimp_gtkrc ());
dlg = gtk_dialog_new ();
gtk_window_set_title (GTK_WINDOW (dlg), "GIMP HTML Magic");
gtk_window_position (GTK_WINDOW (dlg), GTK_WIN_POS_MOUSE);
gtk_signal_connect (GTK_OBJECT (dlg), "destroy",
(GtkSignalFunc) save_close_callback,
NULL);
/* Initialize Tooltips */
/* use black as foreground: */
tips = gtk_tooltips_new ();
tips_fg.red = 0;
tips_fg.green = 0;
tips_fg.blue = 0;
/* postit yellow (khaki) as background: */
gdk_color_alloc (gtk_widget_get_colormap (dlg), &tips_fg);
tips_bg.red = 61669;
tips_bg.green = 59113;
tips_bg.blue = 35979;
gdk_color_alloc (gtk_widget_get_colormap (dlg), &tips_bg);
gtk_tooltips_set_colors (tips,&tips_bg,&tips_fg);
/* Action area */
button = gtk_button_new_with_label ("OK");
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_signal_connect (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) save_ok_callback,
dlg);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->action_area), button, TRUE,
TRUE, 0);
gtk_widget_grab_default (button);
gtk_widget_show (button);
button = gtk_button_new_with_label ("Cancel");
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) gtk_widget_destroy,
GTK_OBJECT (dlg));
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->action_area), button, TRUE,
TRUE, 0);
gtk_widget_show (button);
/* HTML Page Options */
frame = gtk_frame_new ("HTML Page Options");
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
gtk_container_border_width (GTK_CONTAINER (frame), 10);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg) -> vbox), frame, TRUE, TRUE, 0);
toggle = gtk_check_button_new_with_label ("Generate Full HTML Document");
gtk_container_add (GTK_CONTAINER(frame), toggle);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
(GtkSignalFunc) gtm_toggle_callback,
&gtmvals.fulldoc);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), gtmvals.fulldoc);
gtk_widget_show (toggle);
set_tooltip(tips,toggle,"If checked GTM will output a full HTML document with <HTML>, <BODY>, etc. tags instead of just the table html.");
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_container_border_width (GTK_CONTAINER (frame), 10);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg) -> vbox), frame, TRUE, TRUE, 0);
table = gtk_table_new (3, 2, FALSE);
gtk_container_border_width (GTK_CONTAINER (table), 10);
gtk_container_add (GTK_CONTAINER (frame), table);
toggle = gtk_check_button_new_with_label ("Use Cellspan");
gtk_table_attach (GTK_TABLE (table), toggle, 0, 1, 0, 1, GTK_FILL, 0, 5, 0);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
(GtkSignalFunc) gtm_toggle_callback,
&gtmvals.spantags);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), gtmvals.spantags);
gtk_widget_show (toggle);
set_tooltip(tips,toggle,"If checked GTM will replace any rectangular sections of identically colored blocks with one large cell with ROWSPAN and COLSPAN values.");
toggle = gtk_check_button_new_with_label ("Compress TD tags");
gtk_table_attach (GTK_TABLE (table), toggle, 1, 2, 0, 1, GTK_FILL, 0, 5, 0);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
(GtkSignalFunc) gtm_toggle_callback,
&gtmvals.tdcomp);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), gtmvals.tdcomp);
gtk_widget_show (toggle);
set_tooltip(tips,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.");
toggle = gtk_check_button_new_with_label ("Caption");
gtk_table_attach (GTK_TABLE (table), toggle, 0, 1, 1, 2, GTK_FILL, 0, 5, 0);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
(GtkSignalFunc) gtm_toggle_callback,
&gtmvals.caption);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), gtmvals.caption);
gtk_widget_show (toggle);
set_tooltip(tips,toggle,"Check if you would like to have the table captioned.");
entry = gtk_entry_new ();
gtk_table_attach (GTK_TABLE (table), entry, 1, 2, 1, 2, GTK_FILL, 0, 5, 0);
gtk_widget_set_usize (entry, 100, 0);
gtk_signal_connect (GTK_OBJECT (entry), "changed",
(GtkSignalFunc) gtm_caption_callback,
NULL);
gtk_entry_set_text (GTK_ENTRY (entry), gtmvals.captiontxt);
gtk_widget_show (entry);
set_tooltip(tips,entry,"The text for the table caption.");
label = gtk_label_new ("Cell Content");
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 2, 3, GTK_FILL, 0, 5, 0);
gtk_widget_show (label);
entry = gtk_entry_new ();
gtk_table_attach (GTK_TABLE (table), entry, 1, 2, 2, 3, GTK_FILL, 0, 5, 0);
gtk_widget_set_usize (entry, 100, 0);
gtk_signal_connect (GTK_OBJECT (entry), "changed",
(GtkSignalFunc) gtm_cellcontent_callback,
NULL);
gtk_entry_set_text (GTK_ENTRY (entry), gtmvals.cellcontent);
gtk_widget_show (entry);
set_tooltip(tips,entry,"The text to go into each cell.");
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_container_border_width (GTK_CONTAINER (frame), 10);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg) -> vbox), frame, TRUE, TRUE, 0);
table = gtk_table_new (5, 4, FALSE);
gtk_container_border_width (GTK_CONTAINER (table), 10);
gtk_container_add (GTK_CONTAINER (frame), table);
label = gtk_label_new ("Border");
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 0, 1, GTK_FILL, 0, 5, 0);
gtk_widget_show (label);
entry = gtk_entry_new ();
gtk_table_attach (GTK_TABLE (table), entry, 1, 2, 0, 1, GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_set_usize (entry, 35, 0);
gtk_signal_connect (GTK_OBJECT (entry), "changed",
(GtkSignalFunc) gtm_entry_callback,
&gtmvals.border);
sprintf(buffer, "%d", gtmvals.border);
gtk_entry_set_text (GTK_ENTRY (entry), buffer);
gtk_widget_show (entry);
set_tooltip(tips,entry,"The number of pixels in the table border. Can only be a number.");
label = gtk_label_new ("Width");
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 1, 2, GTK_FILL, 0, 5, 0);
gtk_widget_show (label);
entry = gtk_entry_new ();
gtk_table_attach (GTK_TABLE (table), entry, 1, 2, 1, 2, GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_set_usize (entry, 35, 0);
gtk_signal_connect (GTK_OBJECT (entry), "changed",
(GtkSignalFunc) gtm_clwidth_callback,
NULL);
gtk_entry_set_text (GTK_ENTRY (entry), gtmvals.clwidth);
gtk_widget_show (entry);
set_tooltip(tips,entry,"The width for each table cell. Can be a number or a percent.");
label = gtk_label_new ("Height");
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 2, 3, GTK_FILL, 0, 5, 0);
gtk_widget_show (label);
entry = gtk_entry_new ();
gtk_table_attach (GTK_TABLE (table), entry, 1, 2, 2, 3, GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_set_usize (entry, 35, 0);
gtk_signal_connect (GTK_OBJECT (entry), "changed",
(GtkSignalFunc) gtm_clheight_callback,
NULL);
gtk_entry_set_text (GTK_ENTRY (entry), gtmvals.clheight);
gtk_widget_show (entry);
set_tooltip(tips,entry,"The height for each table cell. Can be a number or a percent.");
label = gtk_label_new ("Cell-Padding");
gtk_table_attach (GTK_TABLE (table), label, 2, 3, 0, 1, GTK_FILL, 0, 5, 0);
gtk_widget_show (label);
entry = gtk_entry_new ();
gtk_table_attach (GTK_TABLE (table), entry, 3, 4, 0, 1, GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_set_usize (entry, 35, 0);
gtk_signal_connect (GTK_OBJECT (entry), "changed",
(GtkSignalFunc) gtm_entry_callback,
&gtmvals.cellpadding);
sprintf(buffer, "%d", gtmvals.cellpadding);
gtk_entry_set_text (GTK_ENTRY (entry), buffer);
gtk_widget_show (entry);
set_tooltip(tips,entry,"The amount of cellpadding. Can only be a number.");
label = gtk_label_new ("Cell-Spacing");
gtk_table_attach (GTK_TABLE (table), label, 2, 3, 1, 2, GTK_FILL, 0, 5, 0);
gtk_widget_show (label);
entry = gtk_entry_new ();
gtk_table_attach (GTK_TABLE (table), entry, 3, 4, 1, 2, GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_set_usize (entry, 35, 0);
gtk_signal_connect (GTK_OBJECT (entry), "changed",
(GtkSignalFunc) gtm_entry_callback,
&gtmvals.cellspacing);
sprintf(buffer, "%d", gtmvals.cellspacing);
gtk_entry_set_text (GTK_ENTRY (entry), buffer);
gtk_widget_show (entry);
set_tooltip(tips,entry,"The amount of cellspacing. Can only be a number.");
gtk_widget_show (frame);
gtk_widget_show (table);
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 gtm_toggle_callback (GtkWidget *widget, gpointer data)
{
int *toggle_val;
toggle_val = (int *) data;
if (GTK_TOGGLE_BUTTON (widget)->active)
*toggle_val = TRUE;
else
*toggle_val = FALSE;
}
static void gtm_entry_callback (GtkWidget *widget, gpointer data)
{
gint *text_val;
text_val = (gint*)data;
*text_val = atoi (gtk_entry_get_text (GTK_ENTRY (widget)));
}
static void save_close_callback (GtkWidget *widget, gpointer data)
{
gtk_main_quit ();
}
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)));
}
static void
set_tooltip (GtkTooltips *tooltips, GtkWidget *widget, const char *desc)
{
if (desc && desc[0])
gtk_tooltips_set_tip (tooltips, widget, (char *) desc, NULL);
}
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