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added a preview. 

* plug-ins/common/newsprint.c: added a preview.
This commit is contained in:
David Odin 2004-10-23 20:01:45 +00:00
parent 66529903b9
commit e4202235f0
2 changed files with 110 additions and 23 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
2004-10-23 DindinX <dindinx@gimp.org>
* plug-ins/common/newsprint.c: added a preview.
2004-10-23 Michael Natterer <mitch@gimp.org>
* libgimp/gimpaspectpreview.h

129
plug-ins/common/newsprint.c
View File

@ -476,7 +476,8 @@ static void cellsize_callback (GtkAdjustment *adjustment,
static void newsprint_defaults_callback (GtkWidget *widget,
gpointer data);
static void newsprint (GimpDrawable *drawable);
static void newsprint (GimpDrawable *drawable,
GimpPreview *preview);
static guchar * spot2thresh (gint type,
gint width);
@ -639,7 +640,7 @@ run (const gchar *name,
gimp_tile_cache_ntiles (TILE_CACHE_SIZE);
/* run the newsprint effect */
newsprint (drawable);
newsprint (drawable, NULL);
if (run_mode != GIMP_RUN_NONINTERACTIVE)
gimp_displays_flush ();
@ -980,7 +981,7 @@ newsprint_defaults_callback (GtkWidget *widget,
* Return the channel state, so caller can find the vbox and place it
* in the notebook. */
static channel_st *
new_channel (const chan_tmpl *ct)
new_channel (const chan_tmpl *ct, GtkWidget *preview)
{
GtkSizeGroup *group;
GtkWidget *table;
@ -1020,6 +1021,9 @@ new_channel (const chan_tmpl *ct)
g_signal_connect (chst->angle_adj, "value_changed",
G_CALLBACK (angle_callback),
chst);
g_signal_connect_swapped (chst->angle_adj, "value_changed",
G_CALLBACK (gimp_preview_invalidate),
preview);
/* spot function popup */
hbox = gtk_hbox_new (FALSE, 6);
@ -1055,6 +1059,9 @@ new_channel (const chan_tmpl *ct)
g_signal_connect (chst->combo, "changed",
G_CALLBACK (newsprint_menu_callback),
chst);
g_signal_connect_swapped (chst->combo, "changed",
G_CALLBACK (gimp_preview_invalidate),
preview);
gtk_box_pack_start (GTK_BOX (hbox2), chst->combo, FALSE, FALSE, 0);
gtk_widget_show (chst->combo);
@ -1103,7 +1110,8 @@ new_channel (const chan_tmpl *ct)
* the respective channel state fields in "st". */
static void
gen_channels (NewsprintDialog_st *st,
gint colourspace)
gint colourspace,
GtkWidget *preview)
{
const chan_tmpl *ct;
channel_st **chst;
@ -1123,7 +1131,7 @@ gen_channels (NewsprintDialog_st *st,
while (ct->name)
{
chst[i] = new_channel (ct);
chst[i] = new_channel (ct, preview);
if (i)
chst[i-1]->next = chst[i];
@ -1150,6 +1158,7 @@ newsprint_dialog (GimpDrawable *drawable)
/* widgets we need from callbacks stored here */
NewsprintDialog_st st;
GtkWidget *main_vbox;
GtkWidget *preview;
GtkWidget *frame;
GtkWidget *table;
GtkObject *adj;
@ -1198,6 +1207,13 @@ newsprint_dialog (GimpDrawable *drawable)
TRUE, TRUE, 0);
gtk_widget_show (main_vbox);
preview = gimp_drawable_preview_new (drawable, NULL); // FIXME
gtk_box_pack_start_defaults (GTK_BOX (main_vbox), preview);
gtk_widget_show (preview);
g_signal_connect_swapped (preview, "invalidated",
G_CALLBACK (newsprint),
drawable);
/* resolution settings */
frame = gimp_frame_new (_("Resolution"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
@ -1226,6 +1242,9 @@ newsprint_dialog (GimpDrawable *drawable)
g_signal_connect (st.input_spi, "value_changed",
G_CALLBACK (spi_callback),
&st);
g_signal_connect_swapped (st.input_spi, "value_changed",
G_CALLBACK (gimp_preview_invalidate),
preview);
st.output_lpi =
gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
@ -1237,6 +1256,9 @@ newsprint_dialog (GimpDrawable *drawable)
g_signal_connect (st.output_lpi, "value_changed",
G_CALLBACK (lpi_callback),
&st);
g_signal_connect_swapped (st.output_lpi, "value_changed",
G_CALLBACK (gimp_preview_invalidate),
preview);
st.cellsize = gimp_scale_entry_new (GTK_TABLE (table), 0, 2,
_("C_ell size:"), SCALE_WIDTH, 7,
@ -1247,6 +1269,9 @@ newsprint_dialog (GimpDrawable *drawable)
g_signal_connect (st.cellsize, "value_changed",
G_CALLBACK (cellsize_callback),
&st);
g_signal_connect_swapped (st.cellsize, "value_changed",
G_CALLBACK (gimp_preview_invalidate),
preview);
/* screen settings */
frame = gimp_frame_new (_("Screen"));
@ -1279,6 +1304,9 @@ newsprint_dialog (GimpDrawable *drawable)
g_signal_connect (st.pull, "value_changed",
G_CALLBACK (gimp_int_adjustment_update),
&pvals.k_pullout);
g_signal_connect_swapped (st.pull, "value_changed",
G_CALLBACK (gimp_preview_invalidate),
preview);
/* RGB / CMYK / Intensity select */
hbox = gtk_hbox_new (FALSE, 6);
@ -1299,10 +1327,14 @@ newsprint_dialog (GimpDrawable *drawable)
gtk_widget_show (toggle);
g_object_set_data (G_OBJECT (toggle), "dialog", &st);
g_object_set_data (G_OBJECT (toggle), "preview", preview);
g_signal_connect (toggle, "toggled",
G_CALLBACK (newsprint_cspace_update),
GINT_TO_POINTER (CS_RGB));
g_signal_connect_swapped (toggle, "toggled",
G_CALLBACK (gimp_preview_invalidate),
preview);
toggle = gtk_radio_button_new_with_mnemonic (group, _("C_MYK"));
group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (toggle));
@ -1312,10 +1344,14 @@ newsprint_dialog (GimpDrawable *drawable)
gtk_widget_show (toggle);
g_object_set_data (G_OBJECT (toggle), "dialog", &st);
g_object_set_data (G_OBJECT (toggle), "preview", preview);
g_signal_connect (toggle, "toggled",
G_CALLBACK (newsprint_cspace_update),
GINT_TO_POINTER (CS_CMYK));
g_signal_connect_swapped (toggle, "toggled",
G_CALLBACK (gimp_preview_invalidate),
preview);
toggle = gtk_radio_button_new_with_mnemonic (group, _("I_ntensity"));
group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (toggle));
@ -1325,10 +1361,14 @@ newsprint_dialog (GimpDrawable *drawable)
gtk_widget_show (toggle);
g_object_set_data (G_OBJECT (toggle), "dialog", &st);
g_object_set_data (G_OBJECT (toggle), "preview", preview);
g_signal_connect (toggle, "toggled",
G_CALLBACK (newsprint_cspace_update),
GINT_TO_POINTER (CS_INTENSITY));
g_signal_connect_swapped (toggle, "toggled",
G_CALLBACK (gimp_preview_invalidate),
preview);
gtk_widget_show (hbox);
@ -1347,6 +1387,9 @@ newsprint_dialog (GimpDrawable *drawable)
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&pvals_ui.lock_channels);
g_signal_connect_swapped (toggle, "toggled",
G_CALLBACK (gimp_preview_invalidate),
preview);
button = gtk_button_new_with_mnemonic (_("_Factory defaults"));
gtk_box_pack_end (GTK_BOX (hbox), button, FALSE, FALSE, 0);
@ -1355,6 +1398,9 @@ newsprint_dialog (GimpDrawable *drawable)
g_signal_connect (button, "clicked",
G_CALLBACK (newsprint_defaults_callback),
&st);
g_signal_connect_swapped (button, "clicked",
G_CALLBACK (gimp_preview_invalidate),
preview);
}
/* Make the channels appropriate for this colourspace and
@ -1364,7 +1410,7 @@ newsprint_dialog (GimpDrawable *drawable)
*/
if (!st.chst[pvals.colourspace][0])
{
gen_channels (&st, pvals.colourspace);
gen_channels (&st, pvals.colourspace, preview);
}
gtk_widget_show (st.vbox);
@ -1387,6 +1433,9 @@ newsprint_dialog (GimpDrawable *drawable)
g_signal_connect (adj, "value_changed",
G_CALLBACK (gimp_int_adjustment_update),
&pvals.oversample);
g_signal_connect_swapped (adj, "value_changed",
G_CALLBACK (gimp_preview_invalidate),
preview);
gtk_widget_show (table);
gtk_widget_show (frame);
@ -1408,11 +1457,13 @@ static void
newsprint_cspace_update (GtkWidget *widget,
gpointer data)
{
NewsprintDialog_st *st;
gint new_cs = GPOINTER_TO_INT (data);
gint old_cs = pvals.colourspace;
NewsprintDialog_st *st;
gint new_cs = GPOINTER_TO_INT (data);
gint old_cs = pvals.colourspace;
GtkWidget *preview;
st = g_object_get_data (G_OBJECT (widget), "dialog");
preview = g_object_get_data (G_OBJECT (widget), "preview");
if (!st)
printf ("newsprint: cspace_update: no state, can't happen!\n");
@ -1435,7 +1486,7 @@ newsprint_cspace_update (GtkWidget *widget,
/* make sure we have the necessary channels for the new
* colourspace */
if (!st->chst[new_cs][0])
gen_channels (st, new_cs);
gen_channels (st, new_cs, preview);
/* hide the old channels (if any) */
if (st->channel_notebook[old_cs])
@ -1694,7 +1745,8 @@ spot2thresh (gint type,
/* This function operates on the image, striding across it in tiles. */
static void
newsprint (GimpDrawable *drawable)
newsprint (GimpDrawable *drawable,
GimpPreview *preview)
{
GimpPixelRgn src_rgn, dest_rgn;
guchar *src_row, *dest_row;
@ -1711,12 +1763,14 @@ newsprint (GimpDrawable *drawable)
gint row, col;
gint x, y, x_step, y_step;
gint x1, y1, x2, y2;
gint preview_width, preview_height;
gint rx, ry;
gint progress, max_progress;
gint oversample;
gint colourspace;
gpointer pr;
gint w002;
guchar *preview_buffer = NULL;
#ifdef TIMINGS
GTimer *timer = g_timer_new ();
@ -1735,9 +1789,21 @@ newsprint (GimpDrawable *drawable)
tile_width = gimp_tile_width ();
gimp_drawable_mask_bounds (drawable->drawable_id, &x1, &y1, &x2, &y2);
bpp = gimp_drawable_bpp (drawable->drawable_id);
if (preview)
{
gimp_preview_get_position (preview, &x1, &y1);
gimp_preview_get_size (preview, &preview_width, &preview_height);
x2 = x1 + preview_width;
y2 = y1 + preview_height;
preview_buffer = g_new (guchar, preview_width * preview_height * bpp);
}
else
{
gimp_drawable_mask_bounds (drawable->drawable_id, &x1, &y1, &x2, &y2);
}
has_alpha = gimp_drawable_has_alpha (drawable->drawable_id);
colour_bpp = has_alpha ? bpp-1 : bpp;
colourspace= pvals.colourspace;
@ -1827,15 +1893,15 @@ do { \
x_step = tile_width - (x % tile_width);
y_step = tile_width - (y % tile_width);
/* don't step off the end of the image */
x_step = MIN (x_step, x2-x);
y_step = MIN (y_step, y2-y);
x_step = MIN (x_step, x2 - x);
y_step = MIN (y_step, y2 - y);
/* set up the source and dest regions */
gimp_pixel_rgn_init (&src_rgn, drawable, x, y, x_step, y_step,
FALSE/*dirty*/, FALSE/*shadow*/);
gimp_pixel_rgn_init (&dest_rgn, drawable, x, y, x_step, y_step,
TRUE/*dirty*/, TRUE/*shadow*/);
TRUE, TRUE/*shadow*/);
/* page in the image, one tile at a time */
for (pr = gimp_pixel_rgns_register (2, &src_rgn, &dest_rgn);
@ -1843,7 +1909,11 @@ do { \
pr = gimp_pixel_rgns_process (pr))
{
src_row = src_rgn.data;
dest_row = dest_rgn.data;
if (preview)
dest_row = preview_buffer +
((src_rgn.y - y1) * preview_width + src_rgn.x - x1) * bpp;
else
dest_row = dest_rgn.data;
for (row = 0; row < src_rgn.h; row++)
{
@ -1968,12 +2038,16 @@ do { \
dest += dest_rgn.bpp;
}
src_row += src_rgn.rowstride;
dest_row += dest_rgn.rowstride;
if (preview)
dest_row += preview_width * bpp;
else
dest_row += dest_rgn.rowstride;
}
/* Update progress */
progress += src_rgn.w * src_rgn.h;
gimp_progress_update ((double) progress / (double) max_progress);
if (!preview)
gimp_progress_update ((double) progress / (double) max_progress);
}
}
}
@ -1986,8 +2060,17 @@ do { \
/* We don't free the threshold matrices, since we're about to
* exit, and the OS should clean up after us. */
/* update the affected region */
gimp_drawable_flush (drawable);
gimp_drawable_merge_shadow (drawable->drawable_id, TRUE);
gimp_drawable_update (drawable->drawable_id, x1, y1, (x2 - x1), (y2 - y1));
if (preview)
{
gimp_preview_draw_buffer (preview, preview_buffer, preview_width * bpp);
g_free (preview_buffer);
}
else
{
/* update the affected region */
gimp_drawable_flush (drawable);
gimp_drawable_merge_shadow (drawable->drawable_id, TRUE);
gimp_drawable_update (drawable->drawable_id, x1, y1, (x2 - x1), (y2 - y1));
}
}