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#include "config.h"
#include <string.h>
#include <gtk/gtk.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "gimpressionist.h"
#include "ppmtool.h"
#include "infile.h"
#include "libgimp/stdplugins-intl.h"
static GtkWidget *preview = NULL;
static GtkWidget *previewbutton = NULL;
void preview_set_button_label (gchar * text)
{
gtk_label_set_text (GTK_LABEL (GTK_BIN (previewbutton)->child), text);
}
static void
drawalpha (ppm_t *p, ppm_t *a)
{
int x, y, g;
double v;
int gridsize = 16;
int rowstride = p->width * 3;
for (y = 0; y < p->height; y++)
{
for (x = 0; x < p->width; x++)
{
int k = y * rowstride + x * 3;
if (!a->col[k])
continue;
v = 1.0 - a->col[k] / 255.0;
g = ((x / gridsize + y / gridsize) % 2) * 60 + 100;
p->col[k+0] *= v;
p->col[k+1] *= v;
p->col[k+2] *= v;
v = 1.0 - v;
p->col[k+0] += g*v;
p->col[k+1] += g*v;
p->col[k+2] += g*v;
}
}
}
static ppm_t preview_ppm = {0, 0, NULL};
static ppm_t alpha_ppm = {0, 0, NULL};
static ppm_t backup_ppm = {0, 0, NULL};
static ppm_t alpha_backup_ppm = {0, 0, NULL};
void
preview_free_resources (void)
{
ppm_kill (&preview_ppm);
ppm_kill (&alpha_ppm);
ppm_kill (&backup_ppm);
ppm_kill (&alpha_backup_ppm);
}
void
updatepreview (GtkWidget *wg, gpointer d)
{
/* This portion is remmed out because of the remming out of the
* code below.
* -- Shlomi Fish
* */
#if 0
guchar buf[PREVIEWSIZE*3];
if (!PPM_IS_INITED (&infile) && d)
grabarea();
#endif
/* It seems that infile.col must be true here. (after grabarea() that is.)
* Thus, I'm removing this entire portion of the code in hope that
* it works OK afterwards.
* -- Shlomi Fish
* */
#if 0
if (!PPM_IS_INITED (&infile) && !d) {
guchar *buffer;
buffer = g_new0 (guchar, 3*PREVIEWSIZE*PREVIEWSIZE);
gimp_preview_area_draw (GIMP_PREVIEW_AREA (preview),
0, 0, PREVIEWSIZE, PREVIEWSIZE,
GIMP_RGB_IMAGE,
buffer,
PREVIEWSIZE * 3);
g_free (buffer);
}
else
#endif
{
if (!PPM_IS_INITED (&backup_ppm))
{
infile_copy_to_ppm (&backup_ppm);
if ((backup_ppm.width != PREVIEWSIZE) ||
(backup_ppm.height != PREVIEWSIZE))
resize_fast (&backup_ppm, PREVIEWSIZE, PREVIEWSIZE);
if (img_has_alpha)
{
infile_copy_alpha_to_ppm (&alpha_backup_ppm);
if ((alpha_backup_ppm.width != PREVIEWSIZE) ||
(alpha_backup_ppm.height != PREVIEWSIZE))
resize_fast (&alpha_backup_ppm, PREVIEWSIZE, PREVIEWSIZE);
}
}
if (!PPM_IS_INITED (&preview_ppm))
{
ppm_copy (&backup_ppm, &preview_ppm);
if (img_has_alpha)
ppm_copy (&alpha_backup_ppm, &alpha_ppm);
}
if (d)
{
store_values ();
if (GPOINTER_TO_INT (d) != 2)
repaint (&preview_ppm, &alpha_ppm);
}
if (img_has_alpha)
drawalpha (&preview_ppm, &alpha_ppm);
gimp_preview_area_draw (GIMP_PREVIEW_AREA (preview),
0, 0, PREVIEWSIZE, PREVIEWSIZE,
GIMP_RGB_IMAGE,
preview_ppm.col,
PREVIEWSIZE * 3);
ppm_kill (&preview_ppm);
if (img_has_alpha)
ppm_kill (&alpha_ppm);
}
}
static void
preview_size_allocate (GtkWidget *preview)
{
updatepreview (preview, GINT_TO_POINTER (0));
}
GtkWidget *
create_preview (void)
{
GtkWidget *hbox;
GtkWidget *vbox;
GtkWidget *frame;
GtkWidget *button;
vbox = gtk_vbox_new (FALSE, 6);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 5);
gtk_widget_show (frame);
preview = gimp_preview_area_new ();
gtk_widget_set_size_request (preview, PREVIEWSIZE, PREVIEWSIZE);
gtk_container_add (GTK_CONTAINER (frame), preview);
gtk_widget_show (preview);
/* This is so the preview will be displayed when the dialog is invoked. */
g_signal_connect (preview, "size-allocate",
G_CALLBACK (preview_size_allocate), NULL);
hbox = gtk_hbox_new (TRUE, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
previewbutton = button = gtk_button_new_with_mnemonic (_("_Update"));
g_signal_connect (button, "clicked",
G_CALLBACK (updatepreview), (gpointer) 1);
gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0);
gtk_widget_show (button);
gimp_help_set_help_data (button,
_("Refresh the Preview window"), NULL);
button = gtk_button_new_from_stock (GIMP_STOCK_RESET);
g_signal_connect (button, "clicked",
G_CALLBACK (updatepreview), (gpointer) 2);
gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0);
gtk_widget_show (button);
gimp_help_set_help_data (button,
_("Revert to the original image"), NULL);
return vbox;
}
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