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gimp/plug-ins/common/file-html-table.c
Michael Natterer de121374ef Change the "handles uri" flag of file procedures to "handle remote" 
And always pass URIs to all file procedures, the ones what didn't
register as "handles remove" will only ever get local file:// URIs.

Change all file plug-ins (also legacy ones) to expect URIs instead
of filenames, and convert to local paths in the plug-in.

The wire protocol should now be almost 100% clean of non-UTF-8 strings.
2019-08-19 12:05:12 +02:00

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* GTM plug-in --- GIMP Table Magic
* Allows images to be exported 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 3 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, see <https://www.gnu.org/licenses/>.
*/
/* 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 useful I would appreciate any email about it.
* - Daniel Dunbar
* ddunbar@diads.com
*/
#include "config.h"
#include <string.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "libgimp/stdplugins-intl.h"
#define SAVE_PROC "file-gtm-save"
#define PLUG_IN_BINARY "file-html-table"
#define PLUG_IN_ROLE "gimp-file-html-table"
/* Typedefs */
typedef struct
{
gchar captiontxt[256];
gchar cellcontent[256];
gchar clwidth[256];
gchar clheight[256];
gboolean fulldoc;
gboolean caption;
gint border;
gboolean spantags;
gboolean tdcomp;
gint cellpadding;
gint cellspacing;
} GTMValues;
/* 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 (GFile *file,
GeglBuffer *buffer,
GError **error);
static gboolean save_dialog (gint32 image_ID);
static gboolean print (GOutputStream *output,
GError **error,
const gchar *format,
...) G_GNUC_PRINTF (3, 0);
static gboolean color_comp (guchar *buffer,
guchar *buf2);
static void entry_changed_callback (GtkEntry *entry,
gchar *string);
/* Variables */
static GTMValues gtmvals =
{
"Made with GIMP Table Magic", /* caption text */
"&nbsp;", /* cellcontent text */
"", /* cell width text */
"", /* cell height text */
TRUE, /* fulldoc */
FALSE, /* caption */
2, /* border */
FALSE, /* spantags */
FALSE, /* tdcomp */
4, /* cellpadding */
0 /* cellspacing */
};
const GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
MAIN ()
static void
query (void)
{
static const GimpParamDef save_args[] =
{
{ GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0) }" },
{ GIMP_PDB_IMAGE, "image", "Input image" },
{ GIMP_PDB_DRAWABLE, "drawable", "Drawable to export" },
{ GIMP_PDB_STRING, "filename", "The name of the file to export the image in" },
{ GIMP_PDB_STRING, "raw-filename", "The name of the file to export the image in" }
};
gimp_install_procedure (SAVE_PROC,
"GIMP Table Magic",
"Allows you to draw an HTML table in GIMP. See help for more info.",
"Daniel Dunbar",
"Daniel Dunbar",
"1998",
_("HTML table"),
"RGB*, GRAY*, INDEXED*",
GIMP_PLUGIN,
G_N_ELEMENTS (save_args), 0,
save_args, NULL);
gimp_register_file_handler_mime (SAVE_PROC, "text/html");
gimp_register_file_handler_remote (SAVE_PROC);
gimp_register_save_handler (SAVE_PROC, "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;
GError *error = NULL;
INIT_I18N ();
gegl_init (NULL, NULL);
*nreturn_vals = 1;
*return_vals = values;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR;
gimp_get_data (SAVE_PROC, &gtmvals);
if (save_dialog (param[1].data.d_int32))
{
GeglBuffer *buffer = gimp_drawable_get_buffer (param[2].data.d_int32);
if (save_image (g_file_new_for_uri (param[3].data.d_string),
buffer, &error))
{
gimp_set_data (SAVE_PROC, &gtmvals, sizeof (GTMValues));
}
else
{
status = GIMP_PDB_EXECUTION_ERROR;
}
g_object_unref (buffer);
}
else
{
status = GIMP_PDB_CANCEL;
}
if (status != GIMP_PDB_SUCCESS && error)
{
*nreturn_vals = 2;
values[1].type = GIMP_PDB_STRING;
values[1].data.d_string = error->message;
}
values[0].data.d_status = status;
}
static gboolean
save_image (GFile *file,
GeglBuffer *buffer,
GError **error)
{
const Babl *format = babl_format ("R'G'B'A u8");
GeglSampler *sampler;
GCancellable *cancellable;
GOutputStream *output;
gint row, col;
gint cols, rows;
gint x, y;
gint colcount, colspan, rowspan;
gint *palloc;
guchar *buf, *buf2;
gchar *width = NULL;
gchar *height = NULL;
cols = gegl_buffer_get_width (buffer);
rows = gegl_buffer_get_height (buffer);
gimp_progress_init_printf (_("Exporting '%s'"),
gimp_file_get_utf8_name (file));
output = G_OUTPUT_STREAM (g_file_replace (file,
NULL, FALSE, G_FILE_CREATE_NONE,
NULL, error));
if (output)
{
GOutputStream *buffered;
buffered = g_buffered_output_stream_new (output);
g_object_unref (output);
output = buffered;
}
else
{
return FALSE;
}
sampler = gegl_buffer_sampler_new (buffer, format, GEGL_SAMPLER_NEAREST);
palloc = g_new (int, rows * cols);
if (gtmvals.fulldoc)
{
if (! print (output, error,
"<HTML>\n<HEAD><TITLE>%s</TITLE></HEAD>\n<BODY>\n",
gimp_file_get_utf8_name (file)) ||
! print (output, error, "<H1>%s</H1>\n",
gimp_file_get_utf8_name (file)))
{
goto fail;
}
}
if (! print (output, error,
"<TABLE BORDER=%d CELLPADDING=%d CELLSPACING=%d>\n",
gtmvals.border, gtmvals.cellpadding, gtmvals.cellspacing))
goto fail;
if (gtmvals.caption)
{
if (! print (output, error, "<CAPTION>%s</CAPTION>\n",
gtmvals.captiontxt))
goto fail;
}
buf = g_newa (guchar, babl_format_get_bytes_per_pixel (format));
buf2 = g_newa (guchar, babl_format_get_bytes_per_pixel (format));
if (strcmp (gtmvals.clwidth, "") != 0)
{
width = g_strdup_printf (" WIDTH=\"%s\"", gtmvals.clwidth);
}
if (strcmp (gtmvals.clheight, "") != 0)
{
height = g_strdup_printf (" HEIGHT=\"%s\" ", gtmvals.clheight);
}
if (! width)
width = g_strdup (" ");
if (! height)
height = g_strdup (" ");
/* Initialize array to hold ROWSPAN and COLSPAN cell allocation table */
for (row = 0; row < rows; row++)
for (col = 0; col < cols; col++)
palloc[cols * row + col] = 1;
colspan = 0;
rowspan = 0;
for (y = 0; y < rows; y++)
{
if (! print (output, error, " <TR>\n"))
goto fail;
for (x = 0; x < cols; x++)
{
gegl_sampler_get (sampler, x, y, NULL, buf, GEGL_ABYSS_NONE);
/* Determine ROWSPAN and COLSPAN */
if (gtmvals.spantags)
{
col = x;
row = y;
colcount = 0;
colspan = 0;
rowspan = 0;
gegl_sampler_get (sampler, col, row, NULL, buf2, GEGL_ABYSS_NONE);
while (color_comp (buf, buf2) &&
palloc[cols * row + col] == 1 &&
row < rows)
{
while (color_comp (buf, buf2) &&
palloc[cols * row + col] == 1 &&
col < cols)
{
colcount++;
col++;
gegl_sampler_get (sampler,
col, row, NULL, buf2, GEGL_ABYSS_NONE);
}
if (colcount != 0)
{
row++;
rowspan++;
}
if (colcount < colspan || colspan == 0)
colspan = colcount;
col = x;
colcount = 0;
gegl_sampler_get (sampler,
col, row, NULL, buf2, GEGL_ABYSS_NONE);
}
if (colspan > 1 || rowspan > 1)
{
for (row = 0; row < rowspan; row++)
for (col = 0; col < colspan; col++)
palloc[cols * (row + y) + (col + x)] = 0;
palloc[cols * y + x] = 2;
}
}
if (palloc[cols * y + x] == 1)
{
if (! print (output, error,
" <TD%s%sBGCOLOR=#%02x%02x%02x>",
width, height, buf[0], buf[1], buf[2]))
goto fail;
}
if (palloc[cols * y + x] == 2)
{
if (! print (output, error,
" <TD ROWSPAN=\"%d\" COLSPAN=\"%d\"%s%sBGCOLOR=#%02x%02x%02x>",
rowspan, colspan, width, height,
buf[0], buf[1], buf[2]))
goto fail;
}
if (palloc[cols * y + x] != 0)
{
if (gtmvals.tdcomp)
{
if (! print (output, error,
"%s</TD>\n", gtmvals.cellcontent))
goto fail;
}
else
{
if (! print (output, error,
"\n %s\n </TD>\n", gtmvals.cellcontent))
goto fail;
}
}
}
if (! print (output, error, " </TR>\n"))
goto fail;
gimp_progress_update ((double) y / (double) rows);
}
if (gtmvals.fulldoc)
{
if (! print (output, error, "</TABLE></BODY></HTML>\n"))
goto fail;
}
else
{
if (! print (output, error, "</TABLE>\n"))
goto fail;
}
if (! g_output_stream_close (output, NULL, error))
goto fail;
g_object_unref (output);
g_object_unref (sampler);
g_free (width);
g_free (height);
g_free (palloc);
gimp_progress_update (1.0);
return TRUE;
fail:
cancellable = g_cancellable_new ();
g_cancellable_cancel (cancellable);
g_output_stream_close (output, cancellable, NULL);
g_object_unref (cancellable);
g_object_unref (output);
g_object_unref (sampler);
g_free (width);
g_free (height);
g_free (palloc);
return FALSE;
}
static gint
save_dialog (gint32 image_ID)
{
GtkWidget *dialog;
GtkWidget *main_vbox;
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *grid;
GtkWidget *spinbutton;
GtkAdjustment *adj;
GtkWidget *entry;
GtkWidget *toggle;
gboolean run;
gimp_ui_init (PLUG_IN_BINARY, FALSE);
dialog = gimp_export_dialog_new (_("HTML table"), PLUG_IN_BINARY, SAVE_PROC);
main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
gtk_box_pack_start (GTK_BOX (gimp_export_dialog_get_content_area (dialog)),
main_vbox, TRUE, TRUE, 0);
if (gimp_image_width (image_ID) * gimp_image_height (image_ID) > 4096)
{
GtkWidget *eek;
GtkWidget *label;
GtkWidget *hbox;
frame = gimp_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_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
gtk_container_add (GTK_CONTAINER (frame), hbox);
eek = gtk_image_new_from_icon_name (GIMP_ICON_WILBER_EEK,
GTK_ICON_SIZE_DIALOG);
gtk_box_pack_start (GTK_BOX (hbox), eek, FALSE, FALSE, 0);
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 = gimp_frame_new (_("HTML Page Options"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
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 = gimp_frame_new (_("Table Creation Options"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
grid = gtk_grid_new ();
gtk_grid_set_row_spacing (GTK_GRID (grid), 6);
gtk_grid_set_column_spacing (GTK_GRID (grid), 6);
gtk_container_add (GTK_CONTAINER (frame), grid);
toggle = gtk_check_button_new_with_mnemonic (_("_Use cellspan"));
gtk_grid_attach (GTK_GRID (grid), toggle, 0, 0, 2, 1);
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_grid_attach (GTK_GRID (grid), toggle, 0, 1, 2, 1);
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_grid_attach (GTK_GRID (grid), toggle, 0, 2, 1, 1);
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_grid_attach (GTK_GRID (grid), entry, 1, 2, 1, 1);
gtk_widget_show (entry);
gimp_help_set_help_data (entry, _("The text for the table caption."), NULL);
g_signal_connect (entry, "changed",
G_CALLBACK (entry_changed_callback),
gtmvals.captiontxt);
g_object_bind_property (toggle, "active",
entry, "sensitive",
G_BINDING_SYNC_CREATE);
entry = gtk_entry_new ();
gtk_widget_set_size_request (entry, 200, -1);
gtk_entry_set_text (GTK_ENTRY (entry), gtmvals.cellcontent);
gimp_grid_attach_aligned (GTK_GRID (grid), 0, 3,
_("C_ell content:"), 0.0, 0.5,
entry, 1);
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 (entry_changed_callback),
gtmvals.cellcontent);
gtk_widget_show (grid);
gtk_widget_show (frame);
/* HTML Table Options */
frame = gimp_frame_new (_("Table Options"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
grid = gtk_grid_new ();
gtk_grid_set_row_spacing (GTK_GRID (grid), 6);
gtk_grid_set_column_spacing (GTK_GRID (grid), 6);
gtk_container_add (GTK_CONTAINER (frame), grid);
adj = gtk_adjustment_new (gtmvals.border, 0, 1000, 1, 10, 0);
spinbutton = gimp_spin_button_new (adj, 1.0, 0);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gimp_grid_attach_aligned (GTK_GRID (grid), 0, 0,
_("_Border:"), 0.0, 0.5,
spinbutton, 1);
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_grid_attach_aligned (GTK_GRID (grid), 0, 1,
_("_Width:"), 0.0, 0.5,
entry, 1);
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 (entry_changed_callback),
gtmvals.clwidth);
entry = gtk_entry_new ();
gtk_widget_set_size_request (entry, 60, -1);
gtk_entry_set_text (GTK_ENTRY (entry), gtmvals.clheight);
gimp_grid_attach_aligned (GTK_GRID (grid), 0, 2,
_("_Height:"), 0.0, 0.5,
entry, 1);
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 (entry_changed_callback),
gtmvals.clheight);
adj = gtk_adjustment_new (gtmvals.cellpadding, 0, 1000, 1, 10, 0);
spinbutton = gimp_spin_button_new (adj, 1.0, 0);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gimp_grid_attach_aligned (GTK_GRID (grid), 0, 3,
_("Cell-_padding:"), 0.0, 0.5,
spinbutton, 1);
gimp_help_set_help_data (spinbutton,
_("The amount of cell padding."), NULL);
g_signal_connect (adj, "value-changed",
G_CALLBACK (gimp_int_adjustment_update),
&gtmvals.cellpadding);
adj = gtk_adjustment_new (gtmvals.cellspacing, 0, 1000, 1, 10, 0);
spinbutton = gimp_spin_button_new (adj, 1.0, 0);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gimp_grid_attach_aligned (GTK_GRID (grid), 0, 4,
_("Cell-_spacing:"), 0.0, 0.5,
spinbutton, 1);
gimp_help_set_help_data (spinbutton,
_("The amount of cell spacing."), NULL);
g_signal_connect (adj, "value-changed",
G_CALLBACK (gimp_int_adjustment_update),
&gtmvals.cellspacing);
gtk_widget_show (grid);
gtk_widget_show (frame);
gtk_widget_show (dialog);
run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
gtk_widget_destroy (dialog);
return run;
}
static gboolean
print (GOutputStream *output,
GError **error,
const gchar *format,
...)
{
va_list args;
gboolean success;
va_start (args, format);
success = g_output_stream_vprintf (output, NULL, NULL,
error, format, args);
va_end (args);
return success;
}
static gboolean
color_comp (guchar *buf,
guchar *buf2)
{
return (buf[0] == buf2[0] &&
buf[1] == buf2[1] &&
buf[2] == buf2[2]);
}
/* Export interface functions */
static void
entry_changed_callback (GtkEntry *entry,
gchar *string)
{
g_strlcpy (string, gtk_entry_get_text (entry), 256);
}
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