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refcounting fixups plug-ins/ifscompose/REAMDE.ifscompose: changed web 

Wed Feb 18 16:46:37 1998  Owen Taylor  <owt1@cornell.edu>

	* plug-ins/ifscompose/ifscompose.c: refcounting fixups
	  plug-ins/ifscompose/REAMDE.ifscompose: changed web address
This commit is contained in:
Owen Taylor 1998-02-18 21:49:03 +00:00 committed by Owen Taylor
parent 43da2d720f
commit 4e1c0d5d1a
3 changed files with 88 additions and 32 deletions
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5
ChangeLog
View File

@ -1,3 +1,8 @@
Wed Feb 18 16:46:37 1998 Owen Taylor <owt1@cornell.edu>
* plug-ins/ifscompose/ifscompose.c: refcounting fixups
plug-ins/ifscompose/REAMDE.ifscompose: changed web address
Wed Feb 18 17:56:40 MET 1998 Sven Neumann <sven@gimp.org>
* app/app_procs.c: fixed refcounting for the splash-image

13
plug-ins/ifscompose/README.ifscompose
View File

@ -1,11 +1,11 @@
IfsCompose-0.5
--------------
IfsCompose-0.6.1
----------------
IfsCompose is a plug-in for the GIMP that allows
the creation of Iterated Function System fractals by direct
manipulation onscreen of the component transforms.
Although v0.5 is fairly full featured, it is still lacking some
Although v0.6.1 is fairly full featured, it is still lacking some
essentials. Most importantly, it is not yet possible to save fractals
in unrendered form for future modification. The rendering code could
also use some more work.
@ -76,10 +76,9 @@ Note that if you render onto an image with an alpha channel, the
background will be transparent (very useful for compositing several
fractals), otherwise the background will be the current background.
If I get a chance, I'll try to write up a tutorial and put it
on my web page (http://student-www.uchicago.edu/users/otaylor)
sometime soon. There are some examples of images I've created
there now.
There is a tutorial and some example images at:
http://www.msc.cornell.edu/~otaylor/plug-ins/ifscompose.html
Have fun!

102
plug-ins/ifscompose/ifscompose.c
View File

@ -227,6 +227,7 @@ static void color_map_set_preview_color(GtkWidget *preview,
static ColorMap *color_map_create(gchar *name,IfsColor *orig_color,
IfsColor *data, gint fixed_point);
static void color_map_clicked_callback(GtkWidget *widget,ColorMap *colormap);
static void color_map_destroy_callback(GtkWidget *widget,ColorMap *colormap);
static void color_map_color_changed_cb(GtkWidget *widget,
ColorMap *color_map);
static void color_map_update(ColorMap *color_map);
@ -236,10 +237,12 @@ static void simple_color_toggled(GtkWidget *widget,gpointer data);
static void simple_color_set_sensitive();
static void val_changed_update ();
static ValuePair *value_pair_create (gpointer data, gdouble lower, gdouble upper,
gint create_scale, ValuePairType type);
gboolean create_scale, ValuePairType type);
static void value_pair_update(ValuePair *value_pair);
static void value_pair_entry_callback (GtkWidget *w,
ValuePair *value_pair);
static void value_pair_destroy_callback (GtkWidget *widget,
ValuePair *value_pair);
static void value_pair_button_release (GtkWidget *widget,
GdkEventButton *event,
gpointer data);
@ -264,9 +267,9 @@ static void ifs_compose_preview_callback (GtkWidget *widget,
GtkWidget *preview);
static void ifs_compose_close_callback (GtkWidget *widget,
gpointer data);
GtkWidget **destroyed_widget);
static void ifs_compose_ok_callback (GtkWidget *widget,
gpointer data);
GtkWidget *window);
/*
@ -486,7 +489,7 @@ ifs_compose_trans_page ()
4, 0);
gtk_widget_show(label);
ifsD->x_pair = value_pair_create(&ifsD->current_vals.x,0.0,1.0,0,
ifsD->x_pair = value_pair_create(&ifsD->current_vals.x, 0.0, 1.0, FALSE,
VALUE_PAIR_DOUBLE);
gtk_table_attach(GTK_TABLE(table), ifsD->x_pair->entry,1,2,0,1,
GTK_FILL,GTK_FILL,4,0);
@ -500,7 +503,7 @@ ifs_compose_trans_page ()
GTK_FILL, GTK_FILL, 4, 0);
gtk_widget_show(label);
ifsD->y_pair = value_pair_create(&ifsD->current_vals.y,0.0,1.0,0,
ifsD->y_pair = value_pair_create(&ifsD->current_vals.y, 0.0, 1.0, FALSE,
VALUE_PAIR_DOUBLE);
gtk_table_attach(GTK_TABLE(table), ifsD->y_pair->entry,1,2,1,2,
GTK_FILL,GTK_FILL,4,0);
@ -514,8 +517,8 @@ ifs_compose_trans_page ()
GTK_FILL, GTK_FILL, 4, 0);
gtk_widget_show(label);
ifsD->scale_pair = value_pair_create(&ifsD->current_vals.scale,0.0,1.0,0,
VALUE_PAIR_DOUBLE);
ifsD->scale_pair = value_pair_create(&ifsD->current_vals.scale, 0.0,1.0,
FALSE, VALUE_PAIR_DOUBLE);
gtk_table_attach(GTK_TABLE(table), ifsD->scale_pair->entry,3,4,0,1,
GTK_FILL,GTK_FILL,4,0);
gtk_widget_show (ifsD->scale_pair->entry);
@ -528,8 +531,8 @@ ifs_compose_trans_page ()
GTK_FILL, GTK_FILL, 4, 0);
gtk_widget_show(label);
ifsD->angle_pair = value_pair_create(&ifsD->current_vals.theta,-180,180,0,
VALUE_PAIR_DOUBLE);
ifsD->angle_pair = value_pair_create(&ifsD->current_vals.theta,-180,180,
FALSE, VALUE_PAIR_DOUBLE);
gtk_table_attach(GTK_TABLE(table), ifsD->angle_pair->entry,3,4,1,2,
GTK_FILL,GTK_FILL,4,0);
gtk_widget_show (ifsD->angle_pair->entry);
@ -542,8 +545,8 @@ ifs_compose_trans_page ()
GTK_FILL, GTK_FILL, 4, 0);
gtk_widget_show(label);
ifsD->asym_pair = value_pair_create(&ifsD->current_vals.asym,0.10,10.0,0,
VALUE_PAIR_DOUBLE);
ifsD->asym_pair = value_pair_create(&ifsD->current_vals.asym,0.10,10.0,
FALSE, VALUE_PAIR_DOUBLE);
gtk_table_attach(GTK_TABLE(table), ifsD->asym_pair->entry,5,6,0,1,
GTK_FILL,GTK_FILL,4,0);
gtk_widget_show (ifsD->asym_pair->entry);
@ -556,8 +559,8 @@ ifs_compose_trans_page ()
GTK_FILL, GTK_FILL, 4, 0);
gtk_widget_show(label);
ifsD->shear_pair = value_pair_create(&ifsD->current_vals.shear,-10.0,10.0,0,
VALUE_PAIR_DOUBLE);
ifsD->shear_pair = value_pair_create(&ifsD->current_vals.shear,-10.0,10.0,
FALSE, VALUE_PAIR_DOUBLE);
gtk_table_attach(GTK_TABLE(table), ifsD->shear_pair->entry,5,6,1,2,
GTK_FILL,GTK_FILL,4,0);
gtk_widget_show (ifsD->shear_pair->entry);
@ -618,7 +621,7 @@ ifs_compose_color_page ()
gtk_widget_show(label);
ifsD->hue_scale_pair = value_pair_create(&ifsD->current_vals.hue_scale,
0.0,1.0,1, VALUE_PAIR_DOUBLE);
0.0,1.0, TRUE, VALUE_PAIR_DOUBLE);
gtk_table_attach(GTK_TABLE(table), ifsD->hue_scale_pair->scale, 3, 4, 0, 1,
GTK_FILL, GTK_FILL, 4, 0);
gtk_widget_show (ifsD->hue_scale_pair->scale);
@ -633,7 +636,7 @@ ifs_compose_color_page ()
gtk_widget_show(label);
ifsD->value_scale_pair = value_pair_create(&ifsD->current_vals.value_scale,
0.0,1.0,1, VALUE_PAIR_DOUBLE);
0.0,1.0, TRUE, VALUE_PAIR_DOUBLE);
gtk_table_attach(GTK_TABLE(table), ifsD->value_scale_pair->scale,
3, 4, 1, 2, GTK_FILL, GTK_FILL, 4, 0);
gtk_widget_show (ifsD->value_scale_pair->scale);
@ -762,7 +765,7 @@ ifs_compose_dialog (GDrawable *drawable)
gtk_window_position (GTK_WINDOW (dlg), GTK_WIN_POS_MOUSE);
gtk_signal_connect (GTK_OBJECT (dlg), "destroy",
(GtkSignalFunc) ifs_compose_close_callback,
NULL);
&dlg);
/* Action area */
@ -785,7 +788,7 @@ ifs_compose_dialog (GDrawable *drawable)
button = gtk_button_new_with_label ("Defaults");
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_signal_connect (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) ifs_compose_defaults_callback,
GTK_SIGNAL_FUNC (ifs_compose_defaults_callback),
NULL);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->action_area), button, TRUE, TRUE, 0);
gtk_widget_show (button);
@ -793,7 +796,7 @@ ifs_compose_dialog (GDrawable *drawable)
button = gtk_button_new_with_label ("OK");
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_signal_connect (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) ifs_compose_ok_callback,
GTK_SIGNAL_FUNC (ifs_compose_ok_callback),
dlg);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->action_area), button, TRUE, TRUE, 0);
gtk_widget_grab_default (button);
@ -955,7 +958,7 @@ ifs_compose_dialog (GDrawable *drawable)
gtk_box_pack_start(GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
ifsD->prob_pair = value_pair_create(&ifsD->current_vals.prob,0.0,5.0,1,
ifsD->prob_pair = value_pair_create(&ifsD->current_vals.prob,0.0,5.0, TRUE,
VALUE_PAIR_DOUBLE);
gtk_box_pack_start (GTK_BOX (hbox), ifsD->prob_pair->scale, TRUE, TRUE, 0);
gtk_widget_show (ifsD->prob_pair->scale);
@ -1044,8 +1047,13 @@ ifs_compose_dialog (GDrawable *drawable)
gtk_widget_show (dlg);
gtk_main ();
gtk_object_unref (GTK_OBJECT (ifsDesign->op_menu));
if (dlg)
gtk_widget_destroy (dlg);
if (ifsOptD)
gtk_widget_destroy(ifsOptD->dialog);
gtk_widget_destroy (ifsOptD->dialog);
gdk_flush ();
@ -1095,6 +1103,8 @@ design_op_menu_create(GtkWidget *window)
GtkAcceleratorTable *accelerator_table;
ifsDesign->op_menu = gtk_menu_new();
gtk_object_ref (ifsDesign->op_menu);
gtk_object_sink (GTK_OBJECT (ifsDesign->op_menu));
accelerator_table = gtk_accelerator_table_new();
gtk_menu_set_accelerator_table(GTK_MENU(ifsDesign->op_menu),
@ -2017,7 +2027,11 @@ color_map_create(gchar *name, IfsColor *orig_color, IfsColor *data,
color_map_set_preview_color(color_map->preview,data);
gtk_signal_connect(GTK_OBJECT(button),"clicked",
(GtkSignalFunc)color_map_clicked_callback,
GTK_SIGNAL_FUNC (color_map_clicked_callback),
color_map);
gtk_signal_connect(GTK_OBJECT(frame),"destroy",
GTK_SIGNAL_FUNC (color_map_destroy_callback),
color_map);
return color_map;
@ -2048,6 +2062,12 @@ color_map_clicked_callback(GtkWidget *widget,
"color_changed",
(GtkSignalFunc)color_map_color_changed_cb,
color_map );
gtk_signal_connect ( GTK_OBJECT(csd->colorsel),
"destroy",
GTK_SIGNAL_FUNC (gtk_widget_destroyed),
&color_map->dialog );
/* call here so the old color is set */
gtk_color_selection_set_color( GTK_COLOR_SELECTION(csd->colorsel),
color_map->color->vals);
@ -2065,6 +2085,14 @@ color_map_clicked_callback(GtkWidget *widget,
gtk_widget_show(color_map->dialog);
}
static void
color_map_destroy_callback(GtkWidget *widget,
ColorMap *color_map)
{
if (color_map->dialog)
gtk_widget_destroy (color_map->dialog);
}
static void
color_map_color_changed_cb(GtkWidget *widget,
ColorMap *color_map)
@ -2140,7 +2168,7 @@ simple_color_toggled(GtkWidget *widget,gpointer data)
static ValuePair *
value_pair_create (gpointer data, gdouble lower, gdouble upper,
gint create_scale, ValuePairType type)
gboolean create_scale, ValuePairType type)
{
ValuePair *value_pair = g_new(ValuePair,1);
@ -2150,6 +2178,11 @@ value_pair_create (gpointer data, gdouble lower, gdouble upper,
value_pair->adjustment = gtk_adjustment_new (1.0, lower, upper,
(upper-lower)/100, (upper-lower)/10,
0.0);
/* We need to sink the adjustment, since we may not create a scale for
* it, so nobody will assume the initial refcount
*/
gtk_object_ref (value_pair->adjustment);
gtk_object_sink (value_pair->adjustment);
gtk_signal_connect (GTK_OBJECT (value_pair->adjustment), "value_changed",
(GtkSignalFunc) value_pair_scale_callback,
value_pair);
@ -2157,6 +2190,8 @@ value_pair_create (gpointer data, gdouble lower, gdouble upper,
if (create_scale)
{
value_pair->scale = gtk_hscale_new(GTK_ADJUSTMENT (value_pair->adjustment));
gtk_widget_ref (value_pair->scale);
if (type == VALUE_PAIR_INT)
gtk_scale_set_digits (GTK_SCALE (value_pair->scale), 0);
else
@ -2174,11 +2209,17 @@ value_pair_create (gpointer data, gdouble lower, gdouble upper,
else
value_pair->scale = NULL;
/* We destroy the value pair when the entry is destroyed, so
* we don't need to hold a refcount on the entry
*/
value_pair->entry = gtk_entry_new ();
gtk_widget_set_usize (value_pair->entry, ENTRY_WIDTH, 0);
value_pair->entry_handler_id =
gtk_signal_connect (GTK_OBJECT (value_pair->entry), "changed",
(GtkSignalFunc) value_pair_entry_callback, value_pair);
gtk_signal_connect (GTK_OBJECT (value_pair->entry), "destroy",
(GtkSignalFunc) value_pair_destroy_callback, value_pair);
return value_pair;
}
@ -2286,6 +2327,15 @@ value_pair_entry_callback (GtkWidget *widget,
}
}
static void
value_pair_destroy_callback (GtkWidget *widget,
ValuePair *value_pair)
{
if (value_pair->scale)
gtk_object_unref (GTK_OBJECT (value_pair->scale));
gtk_object_unref (value_pair->adjustment);
}
static void
design_op_callback (GtkWidget *widget, gpointer data)
{
@ -2606,8 +2656,9 @@ ifs_compose_delete_callback (GtkWidget *widget,
static void
ifs_compose_close_callback (GtkWidget *widget,
gpointer data)
GtkWidget **destroyed_widget)
{
*destroyed_widget = NULL;
gtk_main_quit ();
}
@ -2680,8 +2731,9 @@ ifs_compose_preview_callback (GtkWidget *widget,
static void
ifs_compose_ok_callback (GtkWidget *widget,
gpointer data)
GtkWidget *window)
{
ifscint.run = TRUE;
gtk_widget_destroy (GTK_WIDGET (data));
gtk_widget_destroy (window);
}