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gimp/plug-ins/FractalExplorer/Dialogs.c
Michael Natterer b10adabb5e Added parent window API to the GimpProgress interface and to the libgimp 
2005-09-09  Michael Natterer  <mitch@gimp.org>

	Added parent window API to the GimpProgress interface and to
	the libgimp progress stuff. Might look strange, but does
	the right thing in almost all cases (image window, file dialog,
	script-fu dialog etc). Fixes bug #62988.

	* app/core/gimpprogress.[ch]: added GimpProgress::get_window()
	which should return a toplevel window ID if the progress is in a
	window that wants to be the transient parent of plug-in dialogs.

	* app/widgets/gimpwidgets-utils.[ch] (gimp_window_get_native): new
	function which returns the window handle of a GtkWindow's GdkWindow.

	* app/widgets/gimpfiledialog.c: implement ::get_window().

	* app/display/gimpdisplay.[ch]: ditto. Removed window handle API.

	* app/gui/gui-vtable.c: changed accordingly.

	* libgimpbase/gimpbaseenums.[ch] (enum GimpProgressCommand):
	added GIMP_PROGRESS_COMMAND_GET_WINDOW.

	* app/plug-in/plug-in-progress.[ch] (plug_in_progress_get_window):
	new function. Also renamed some functions to match the
	GimpProgress interface, and not the legacy PDB procedure names.

	* tools/pdbgen/pdb/progress.pdb
	* app/core/gimppdbprogress.c: implement get_window() on both
	sides of the wire, keeping backward compatibility (hopefully).

	* libgimp/gimpprogress.[ch]: deprecated gimp_progress_install()
	and added gimp_progress_install_vtable() which takes a vtable with
	padding to be extensible. Added get_window() vtable entry and
	dispatch it accordingly. Also added pulse() which was implemented
	in a hackish way before. Everything is of course backward
	compatible.

	* libgimp/gimpprogressbar.c: inmplement the get_window() stuff
	so a plug-in dialog containing a progress can be the transient
	parent of another dialog in another plug-in.

	* libgimp/gimpui.[ch] (gimp_ui_get_progress_window): new function
	which returns a foreign GdkWindow of this plug-ins progress
	window.

	Renamed gimp_window_set_transient_for_default_display() to
	gimp_window_set_transient() and make it use the progress' window
	handle instead of the display's (which is the right thing to do in
	almost all cases).

	* libgimp/gimp.def
	* libgimp/gimpui.def: add the new functions.

	* tools/pdbgen/enums.pl
	* app/pdb/internal_procs.c
	* app/pdb/progress_cmds.c
	* libgimp/gimpprogress_pdb.[ch]: regenerated.

	* libgimp/gimpexport.c
	* plug-ins/*/*.c: follow API change.
2005-09-09 18:07:31 +00:00

2028 lines
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/**********************************************************************
The GIMP -- an image manipulation program
Copyright (C) 1995 Spencer Kimball and Peter Mattis
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*********************************************************************/
#include "config.h"
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <glib/gstdio.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "FractalExplorer.h"
#include "Dialogs.h"
#include "libgimp/stdplugins-intl.h"
#define ZOOM_UNDO_SIZE 100
static gint n_gradient_samples = 0;
static gdouble *gradient_samples = NULL;
static gchar *gradient_name = NULL;
static gboolean ready_now = FALSE;
static gchar *tpath = NULL;
static DialogElements *elements = NULL;
static GtkWidget *cmap_preview;
static GtkWidget *maindlg;
static explorer_vals_t zooms[ZOOM_UNDO_SIZE];
static gint zoomindex = 0;
static gint zoommax = 0;
static gint oldxpos = -1;
static gint oldypos = -1;
static gdouble x_press = -1.0;
static gdouble y_press = -1.0;
static explorer_vals_t standardvals =
{
0,
-2.0,
2.0,
-1.5,
1.5,
50.0,
-0.75,
-0.2,
0,
1.0,
1.0,
1.0,
1,
1,
0,
0,
0,
0,
1,
256,
0
};
/**********************************************************************
FORWARD DECLARATIONS
*********************************************************************/
static void load_file_chooser_response (GtkFileChooser *chooser,
gint response_id,
gpointer data);
static void save_file_chooser_response (GtkFileChooser *chooser,
gint response_id,
gpointer data);
static void create_load_file_chooser (GtkWidget *widget,
GtkWidget *dialog);
static void create_save_file_chooser (GtkWidget *widget,
GtkWidget *dialog);
static void cmap_preview_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
/**********************************************************************
CALLBACKS
*********************************************************************/
static void
dialog_response (GtkWidget *widget,
gint response_id,
gpointer data)
{
switch (response_id)
{
case GTK_RESPONSE_OK:
wint.run = TRUE;
gtk_widget_destroy (widget);
break;
default:
gtk_widget_destroy (widget);
break;
}
}
static void
dialog_reset_callback (GtkWidget *widget,
gpointer data)
{
wvals.xmin = standardvals.xmin;
wvals.xmax = standardvals.xmax;
wvals.ymin = standardvals.ymin;
wvals.ymax = standardvals.ymax;
wvals.iter = standardvals.iter;
wvals.cx = standardvals.cx;
wvals.cy = standardvals.cy;
dialog_change_scale ();
set_cmap_preview ();
dialog_update_preview ();
}
static void
dialog_redraw_callback (GtkWidget *widget,
gpointer data)
{
gint alwaysprev = wvals.alwayspreview;
wvals.alwayspreview = TRUE;
set_cmap_preview ();
dialog_update_preview ();
wvals.alwayspreview = alwaysprev;
}
static void
dialog_undo_zoom_callback (GtkWidget *widget,
gpointer data)
{
if (zoomindex > 0)
{
zooms[zoomindex] = wvals;
zoomindex--;
wvals = zooms[zoomindex];
dialog_change_scale ();
set_cmap_preview ();
dialog_update_preview ();
}
}
static void
dialog_redo_zoom_callback (GtkWidget *widget,
gpointer data)
{
if (zoomindex < zoommax)
{
zoomindex++;
wvals = zooms[zoomindex];
dialog_change_scale ();
set_cmap_preview ();
dialog_update_preview ();
}
}
static void
dialog_step_in_callback (GtkWidget *widget,
gpointer data)
{
double xdifferenz;
double ydifferenz;
if (zoomindex < ZOOM_UNDO_SIZE - 1)
{
zooms[zoomindex]=wvals;
zoomindex++;
}
zoommax = zoomindex;
xdifferenz = wvals.xmax - wvals.xmin;
ydifferenz = wvals.ymax - wvals.ymin;
wvals.xmin += 1.0 / 6.0 * xdifferenz;
wvals.ymin += 1.0 / 6.0 * ydifferenz;
wvals.xmax -= 1.0 / 6.0 * xdifferenz;
wvals.ymax -= 1.0 / 6.0 * ydifferenz;
zooms[zoomindex] = wvals;
dialog_change_scale ();
set_cmap_preview ();
dialog_update_preview ();
}
static void
dialog_step_out_callback (GtkWidget *widget,
gpointer data)
{
gdouble xdifferenz;
gdouble ydifferenz;
if (zoomindex < ZOOM_UNDO_SIZE - 1)
{
zooms[zoomindex]=wvals;
zoomindex++;
}
zoommax = zoomindex;
xdifferenz = wvals.xmax - wvals.xmin;
ydifferenz = wvals.ymax - wvals.ymin;
wvals.xmin -= 1.0 / 4.0 * xdifferenz;
wvals.ymin -= 1.0 / 4.0 * ydifferenz;
wvals.xmax += 1.0 / 4.0 * xdifferenz;
wvals.ymax += 1.0 / 4.0 * ydifferenz;
zooms[zoomindex] = wvals;
dialog_change_scale ();
set_cmap_preview ();
dialog_update_preview ();
}
static void
explorer_toggle_update (GtkWidget *widget,
gpointer data)
{
gimp_toggle_button_update (widget, data);
set_cmap_preview ();
dialog_update_preview ();
}
static void
explorer_radio_update (GtkWidget *widget,
gpointer data)
{
gimp_radio_button_update (widget, data);
set_cmap_preview ();
dialog_update_preview ();
}
static void
explorer_double_adjustment_update (GtkAdjustment *adjustment,
gpointer data)
{
gimp_double_adjustment_update (adjustment, data);
set_cmap_preview ();
dialog_update_preview ();
}
static void
explorer_number_of_colors_callback (GtkAdjustment *adjustment,
gpointer data)
{
gimp_int_adjustment_update (adjustment, data);
g_free (gradient_samples);
if (! gradient_name)
gradient_name = gimp_context_get_gradient ();
gimp_gradient_get_uniform_samples (gradient_name,
wvals.ncolors,
wvals.gradinvert,
&n_gradient_samples,
&gradient_samples);
set_cmap_preview ();
dialog_update_preview ();
}
static void
explorer_gradient_select_callback (const gchar *name,
gint width,
const gdouble *gradient_data,
gboolean dialog_closing,
gpointer data)
{
g_free (gradient_name);
g_free (gradient_samples);
gradient_name = g_strdup (name);
gimp_gradient_get_uniform_samples (gradient_name,
wvals.ncolors,
wvals.gradinvert,
&n_gradient_samples,
&gradient_samples);
if (wvals.colormode == 1)
{
set_cmap_preview ();
dialog_update_preview ();
}
}
static void
preview_draw_crosshair (gint px,
gint py)
{
gint x, y;
guchar *p_ul;
p_ul = wint.wimage + 3 * (preview_width * py + 0);
for (x = 0; x < preview_width; x++)
{
p_ul[0] ^= 254;
p_ul[1] ^= 254;
p_ul[2] ^= 254;
p_ul += 3;
}
p_ul = wint.wimage + 3 * (preview_width * 0 + px);
for (y = 0; y < preview_height; y++)
{
p_ul[0] ^= 254;
p_ul[1] ^= 254;
p_ul[2] ^= 254;
p_ul += 3 * preview_width;
}
}
static void
preview_redraw (void)
{
gimp_preview_area_draw (GIMP_PREVIEW_AREA (wint.preview),
0, 0, preview_width, preview_height,
GIMP_RGB_IMAGE,
wint.wimage, preview_width * 3);
gtk_widget_queue_draw (wint.preview);
}
static gboolean
preview_button_press_event (GtkWidget *widget,
GdkEventButton *event)
{
if (event->button == 1)
{
x_press = event->x;
y_press = event->y;
xbild = preview_width;
ybild = preview_height;
xdiff = (xmax - xmin) / xbild;
ydiff = (ymax - ymin) / ybild;
preview_draw_crosshair (x_press, y_press);
preview_redraw ();
}
return TRUE;
}
static gboolean
preview_motion_notify_event (GtkWidget *widget,
GdkEventButton *event)
{
if (oldypos != -1)
{
preview_draw_crosshair (oldxpos, oldypos);
}
oldxpos = event->x;
oldypos = event->y;
if ((oldxpos >= 0.0) &&
(oldypos >= 0.0) &&
(oldxpos < preview_width) &&
(oldypos < preview_height))
{
preview_draw_crosshair (oldxpos, oldypos);
}
else
{
oldypos = -1;
oldxpos = -1;
}
preview_redraw ();
return TRUE;
}
static gboolean
preview_leave_notify_event (GtkWidget *widget,
GdkEventButton *event)
{
if (oldypos != -1)
{
preview_draw_crosshair (oldxpos, oldypos);
}
oldxpos = -1;
oldypos = -1;
preview_redraw ();
gdk_window_set_cursor (maindlg->window, NULL);
return TRUE;
}
static gboolean
preview_enter_notify_event (GtkWidget *widget,
GdkEventButton *event)
{
static GdkCursor *cursor = NULL;
if (! cursor)
{
GdkDisplay *display = gtk_widget_get_display (maindlg);
cursor = gdk_cursor_new_for_display (display, GDK_TCROSS);
}
gdk_window_set_cursor (maindlg->window, cursor);
return TRUE;
}
static gboolean
preview_button_release_event (GtkWidget *widget,
GdkEventButton *event)
{
gdouble l_xmin;
gdouble l_xmax;
gdouble l_ymin;
gdouble l_ymax;
if (event->button == 1)
{
gdouble x_release, y_release;
x_release = event->x;
y_release = event->y;
if ((x_press >= 0.0) && (y_press >= 0.0) &&
(x_release >= 0.0) && (y_release >= 0.0) &&
(x_press < preview_width) && (y_press < preview_height) &&
(x_release < preview_width) && (y_release < preview_height))
{
l_xmin = (wvals.xmin +
(wvals.xmax - wvals.xmin) * (x_press / preview_width));
l_xmax = (wvals.xmin +
(wvals.xmax - wvals.xmin) * (x_release / preview_width));
l_ymin = (wvals.ymin +
(wvals.ymax - wvals.ymin) * (y_press / preview_height));
l_ymax = (wvals.ymin +
(wvals.ymax - wvals.ymin) * (y_release / preview_height));
if (zoomindex < ZOOM_UNDO_SIZE - 1)
{
zooms[zoomindex] = wvals;
zoomindex++;
}
zoommax = zoomindex;
wvals.xmin = l_xmin;
wvals.xmax = l_xmax;
wvals.ymin = l_ymin;
wvals.ymax = l_ymax;
dialog_change_scale ();
dialog_update_preview ();
oldypos = oldxpos = -1;
}
}
return TRUE;
}
/**********************************************************************
FUNCTION: explorer_dialog
*********************************************************************/
gint
explorer_dialog (void)
{
GtkWidget *dialog;
GtkWidget *top_hbox;
GtkWidget *left_vbox;
GtkWidget *abox;
GtkWidget *vbox;
GtkWidget *hbbox;
GtkWidget *frame;
GtkWidget *toggle;
GtkWidget *toggle_vbox;
GtkWidget *toggle_vbox2;
GtkWidget *toggle_vbox3;
GtkWidget *notebook;
GtkWidget *hbox;
GtkWidget *table;
GtkWidget *button;
GtkWidget *gradient;
gchar *path;
gchar *gradient_name;
GSList *group = NULL;
gint i;
gimp_ui_init ("fractalexplorer", TRUE);
path = gimp_gimprc_query ("fractalexplorer-path");
if (path)
{
fractalexplorer_path = g_filename_from_utf8 (path, -1, NULL, NULL, NULL);
g_free (path);
}
else
{
gchar *gimprc = gimp_personal_rc_file ("gimprc");
gchar *full_path = gimp_config_build_data_path ("fractalexplorer");
gchar *esc_path = g_strescape (full_path, NULL);
g_free (full_path);
g_message (_("No %s in gimprc:\n"
"You need to add an entry like\n"
"(%s \"%s\")\n"
"to your %s file."),
"fractalexplorer-path",
"fractalexplorer-path",
esc_path, gimp_filename_to_utf8 (gimprc));
g_free (gimprc);
g_free (esc_path);
}
wint.wimage = g_new (guchar, preview_width * preview_height * 3);
elements = g_new (DialogElements, 1);
dialog = maindlg =
gimp_dialog_new ("Fractal Explorer", "fractalexplorer",
NULL, 0,
gimp_standard_help_func, HELP_ID,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gimp_window_set_transient (GTK_WINDOW (dialog));
g_signal_connect (dialog, "response",
G_CALLBACK (dialog_response),
NULL);
g_signal_connect (dialog, "destroy",
G_CALLBACK (gtk_main_quit),
NULL);
top_hbox = gtk_hbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (top_hbox), 12);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox), top_hbox,
FALSE, FALSE, 0);
gtk_widget_show (top_hbox);
left_vbox = gtk_vbox_new (FALSE, 12);
gtk_box_pack_start (GTK_BOX (top_hbox), left_vbox, FALSE, FALSE, 0);
gtk_widget_show (left_vbox);
/* Preview */
vbox = gtk_vbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (left_vbox), vbox, FALSE, FALSE, 0);
gtk_widget_show (vbox);
abox = gtk_alignment_new (0.0, 0.0, 0.0, 0.0);
gtk_box_pack_start (GTK_BOX (vbox), abox, FALSE, FALSE, 0);
gtk_widget_show (abox);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_container_add (GTK_CONTAINER (abox), frame);
gtk_widget_show (frame);
wint.preview = gimp_preview_area_new ();
gtk_widget_set_size_request (wint.preview, preview_width, preview_height);
gtk_container_add (GTK_CONTAINER (frame), wint.preview);
g_signal_connect (wint.preview, "button-press-event",
G_CALLBACK (preview_button_press_event),
NULL);
g_signal_connect (wint.preview, "button-release-event",
G_CALLBACK (preview_button_release_event),
NULL);
g_signal_connect (wint.preview, "motion-notify-event",
G_CALLBACK (preview_motion_notify_event),
NULL);
g_signal_connect (wint.preview, "leave-notify-event",
G_CALLBACK (preview_leave_notify_event),
NULL);
g_signal_connect (wint.preview, "enter-notify-event",
G_CALLBACK (preview_enter_notify_event),
NULL);
gtk_widget_set_events (wint.preview, (GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK |
GDK_LEAVE_NOTIFY_MASK |
GDK_ENTER_NOTIFY_MASK));
gtk_widget_show (wint.preview);
toggle = gtk_check_button_new_with_label (_("Realtime preview"));
gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
g_signal_connect (toggle, "toggled",
G_CALLBACK (explorer_toggle_update),
&wvals.alwayspreview);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), wvals.alwayspreview);
gtk_widget_show (toggle);
gimp_help_set_help_data (toggle, _("If you enable this option the preview "
"will be redrawn automatically"), NULL);
button = gtk_button_new_with_label (_("Redraw"));
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
g_signal_connect (button, "clicked",
G_CALLBACK (dialog_redraw_callback),
dialog);
gtk_widget_show (button);
gimp_help_set_help_data (button, _("Redraw preview"), NULL);
/* Zoom Options */
frame = gimp_frame_new (_("Zoom"));
gtk_box_pack_start (GTK_BOX (left_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox = gtk_vbox_new (FALSE, 2);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
button = gtk_button_new_from_stock (GTK_STOCK_ZOOM_IN);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (dialog_step_in_callback),
dialog);
button = gtk_button_new_from_stock (GTK_STOCK_ZOOM_OUT);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (dialog_step_out_callback),
dialog);
button = gtk_button_new_from_stock (GTK_STOCK_UNDO);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
gimp_help_set_help_data (button, _("Undo last zoom"), NULL);
g_signal_connect (button, "clicked",
G_CALLBACK (dialog_undo_zoom_callback),
dialog);
button = gtk_button_new_from_stock (GTK_STOCK_REDO);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
gimp_help_set_help_data (button, _("Redo last zoom"), NULL);
g_signal_connect (button, "clicked",
G_CALLBACK (dialog_redo_zoom_callback),
dialog);
/* Create notebook */
notebook = gtk_notebook_new ();
gtk_box_pack_start (GTK_BOX (top_hbox), notebook, FALSE, FALSE, 0);
gtk_widget_show (notebook);
/* "Parameters" page */
vbox = gtk_vbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 12);
gtk_notebook_append_page (GTK_NOTEBOOK (notebook), vbox,
gtk_label_new_with_mnemonic (_("_Parameters")));
gtk_widget_show (vbox);
frame = gimp_frame_new (_("Fractal Parameters"));
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
table = gtk_table_new (8, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_table_set_row_spacings (GTK_TABLE (table), 6);
gtk_table_set_row_spacing (GTK_TABLE (table), 6, 12);
gtk_container_add (GTK_CONTAINER (frame), table);
gtk_widget_show (table);
elements->xmin =
gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
_("XMIN:"), SCALE_WIDTH, 10,
wvals.xmin, -3, 3, 0.001, 0.01, 5,
TRUE, 0, 0,
_("Change the first (minimal) x-coordinate "
"delimitation"), NULL);
g_signal_connect (elements->xmin, "value-changed",
G_CALLBACK (explorer_double_adjustment_update),
&wvals.xmin);
elements->xmax =
gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
_("XMAX:"), SCALE_WIDTH, 10,
wvals.xmax, -3, 3, 0.001, 0.01, 5,
TRUE, 0, 0,
_("Change the second (maximal) x-coordinate "
"delimitation"), NULL);
g_signal_connect (elements->xmax, "value-changed",
G_CALLBACK (explorer_double_adjustment_update),
&wvals.xmax);
elements->ymin =
gimp_scale_entry_new (GTK_TABLE (table), 0, 2,
_("YMIN:"), SCALE_WIDTH, 10,
wvals.ymin, -3, 3, 0.001, 0.01, 5,
TRUE, 0, 0,
_("Change the first (minimal) y-coordinate "
"delimitation"), NULL);
g_signal_connect (elements->ymin, "value-changed",
G_CALLBACK (explorer_double_adjustment_update),
&wvals.ymin);
elements->ymax =
gimp_scale_entry_new (GTK_TABLE (table), 0, 3,
_("YMAX:"), SCALE_WIDTH, 10,
wvals.ymax, -3, 3, 0.001, 0.01, 5,
TRUE, 0, 0,
_("Change the second (maximal) y-coordinate "
"delimitation"), NULL);
g_signal_connect (elements->ymax, "value-changed",
G_CALLBACK (explorer_double_adjustment_update),
&wvals.ymax);
elements->iter =
gimp_scale_entry_new (GTK_TABLE (table), 0, 4,
_("ITER:"), SCALE_WIDTH, 10,
wvals.iter, 0, 1000, 1, 10, 5,
TRUE, 0, 0,
_("Change the iteration value. The higher it "
"is, the more details will be calculated, "
"which will take more time"), NULL);
g_signal_connect (elements->iter, "value-changed",
G_CALLBACK (explorer_double_adjustment_update),
&wvals.iter);
elements->cx =
gimp_scale_entry_new (GTK_TABLE (table), 0, 5,
_("CX:"), SCALE_WIDTH, 10,
wvals.cx, -2.5, 2.5, 0.001, 0.01, 5,
TRUE, 0, 0,
_("Change the CX value (changes aspect of "
"fractal, active with every fractal but "
"Mandelbrot and Sierpinski)"), NULL);
g_signal_connect (elements->cx, "value-changed",
G_CALLBACK (explorer_double_adjustment_update),
&wvals.cx);
elements->cy =
gimp_scale_entry_new (GTK_TABLE (table), 0, 6,
_("CY:"), SCALE_WIDTH, 10,
wvals.cy, -2.5, 2.5, 0.001, 0.01, 5,
TRUE, 0, 0,
_("Change the CY value (changes aspect of "
"fractal, active with every fractal but "
"Mandelbrot and Sierpinski)"), NULL);
g_signal_connect (elements->cy, "value-changed",
G_CALLBACK (explorer_double_adjustment_update),
&wvals.cy);
hbbox = gtk_hbox_new (FALSE, 6);
gtk_table_attach_defaults (GTK_TABLE (table), hbbox, 0, 3, 7, 8);
gtk_widget_show (hbbox);
button = gtk_button_new_from_stock (GTK_STOCK_OPEN);
gtk_box_pack_start (GTK_BOX (hbbox), button, TRUE, TRUE, 0);
g_signal_connect (button, "clicked",
G_CALLBACK (create_load_file_chooser),
dialog);
gtk_widget_show (button);
gimp_help_set_help_data (button, _("Load a fractal from file"), NULL);
button = gtk_button_new_from_stock (GIMP_STOCK_RESET);
gtk_box_pack_start (GTK_BOX (hbbox), button, TRUE, TRUE, 0);
g_signal_connect (button, "clicked",
G_CALLBACK (dialog_reset_callback),
dialog);
gtk_widget_show (button);
gimp_help_set_help_data (button, _("Reset parameters to default values"),
NULL);
button = gtk_button_new_from_stock (GTK_STOCK_SAVE);
gtk_box_pack_start (GTK_BOX (hbbox), button, TRUE, TRUE, 0);
g_signal_connect (button, "clicked",
G_CALLBACK (create_save_file_chooser),
dialog);
gtk_widget_show (button);
gimp_help_set_help_data (button, _("Save active fractal to file"), NULL);
/* Fractal type toggle box */
frame = gimp_frame_new (_("Fractal Type"));
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
hbox = gtk_hbox_new (FALSE, 12);
gtk_container_add (GTK_CONTAINER (frame), hbox);
gtk_widget_show (hbox);
toggle_vbox =
gimp_int_radio_group_new (FALSE, NULL,
G_CALLBACK (explorer_radio_update),
&wvals.fractaltype, wvals.fractaltype,
_("Mandelbrot"), TYPE_MANDELBROT,
&(elements->type[TYPE_MANDELBROT]),
_("Julia"), TYPE_JULIA,
&(elements->type[TYPE_JULIA]),
_("Barnsley 1"), TYPE_BARNSLEY_1,
&(elements->type[TYPE_BARNSLEY_1]),
_("Barnsley 2"), TYPE_BARNSLEY_2,
&(elements->type[TYPE_BARNSLEY_2]),
_("Barnsley 3"), TYPE_BARNSLEY_3,
&(elements->type[TYPE_BARNSLEY_3]),
_("Spider"), TYPE_SPIDER,
&(elements->type[TYPE_SPIDER]),
_("Man'o'war"), TYPE_MAN_O_WAR,
&(elements->type[TYPE_MAN_O_WAR]),
_("Lambda"), TYPE_LAMBDA,
&(elements->type[TYPE_LAMBDA]),
_("Sierpinski"), TYPE_SIERPINSKI,
&(elements->type[TYPE_SIERPINSKI]),
NULL);
toggle_vbox2 = gtk_vbox_new (FALSE, 2);
for (i = TYPE_BARNSLEY_2; i <= TYPE_SPIDER; i++)
{
g_object_ref (elements->type[i]);
gtk_widget_hide (elements->type[i]);
gtk_container_remove (GTK_CONTAINER (toggle_vbox), elements->type[i]);
gtk_box_pack_start (GTK_BOX (toggle_vbox2), elements->type[i],
FALSE, FALSE, 0);
gtk_widget_show (elements->type[i]);
g_object_unref (elements->type[i]);
}
toggle_vbox3 = gtk_vbox_new (FALSE, 2);
for (i = TYPE_MAN_O_WAR; i <= TYPE_SIERPINSKI; i++)
{
g_object_ref (elements->type[i]);
gtk_widget_hide (elements->type[i]);
gtk_container_remove (GTK_CONTAINER (toggle_vbox), elements->type[i]);
gtk_box_pack_start (GTK_BOX (toggle_vbox3), elements->type[i],
FALSE, FALSE, 0);
gtk_widget_show (elements->type[i]);
g_object_unref (elements->type[i]);
}
gtk_box_pack_start (GTK_BOX (hbox), toggle_vbox, FALSE, FALSE, 0);
gtk_widget_show (toggle_vbox);
gtk_box_pack_start (GTK_BOX (hbox), toggle_vbox2, FALSE, FALSE, 0);
gtk_widget_show (toggle_vbox2);
gtk_box_pack_start (GTK_BOX (hbox), toggle_vbox3, FALSE, FALSE, 0);
gtk_widget_show (toggle_vbox3);
/* Color page */
vbox = gtk_vbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 12);
gtk_notebook_append_page (GTK_NOTEBOOK (notebook), vbox,
gtk_label_new_with_mnemonic (_("Co_lors")));
gtk_widget_show (vbox);
/* Number of Colors frame */
frame = gimp_frame_new (_("Number of Colors"));
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
table = gtk_table_new (2, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_table_set_row_spacings (GTK_TABLE (table), 6);
gtk_container_add (GTK_CONTAINER (frame), table);
gtk_widget_show (table);
elements->ncol =
gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
_("Number of colors:"), SCALE_WIDTH, 0,
wvals.ncolors, 2, MAXNCOLORS, 1, 10, 0,
TRUE, 0, 0,
_("Change the number of colors in the mapping"),
NULL);
g_signal_connect (elements->ncol, "value-changed",
G_CALLBACK (explorer_number_of_colors_callback),
&wvals.ncolors);
elements->useloglog = toggle =
gtk_check_button_new_with_label (_("Use loglog smoothing"));
gtk_table_attach_defaults (GTK_TABLE (table), toggle, 0, 3, 1, 2);
g_signal_connect (toggle, "toggled",
G_CALLBACK (explorer_toggle_update),
&wvals.useloglog);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), wvals.useloglog);
gtk_widget_show (toggle);
gimp_help_set_help_data (toggle, _("Use log log smoothing to eliminate "
"\"banding\" in the result"), NULL);
/* Color Density frame */
frame = gimp_frame_new (_("Color Density"));
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
table = gtk_table_new (3, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_table_set_row_spacings (GTK_TABLE (table), 6);
gtk_container_add (GTK_CONTAINER (frame), table);
gtk_widget_show (table);
elements->red =
gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
_("Red:"), SCALE_WIDTH, 0,
wvals.redstretch, 0, 1, 0.01, 0.1, 2,
TRUE, 0, 0,
_("Change the intensity of the red channel"), NULL);
g_signal_connect (elements->red, "value-changed",
G_CALLBACK (explorer_double_adjustment_update),
&wvals.redstretch);
elements->green =
gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
_("Green:"), SCALE_WIDTH, 0,
wvals.greenstretch, 0, 1, 0.01, 0.1, 2,
TRUE, 0, 0,
_("Change the intensity of the green channel"), NULL);
g_signal_connect (elements->green, "value-changed",
G_CALLBACK (explorer_double_adjustment_update),
&wvals.greenstretch);
elements->blue =
gimp_scale_entry_new (GTK_TABLE (table), 0, 2,
_("Blue:"), SCALE_WIDTH, 0,
wvals.bluestretch, 0, 1, 0.01, 0.1, 2,
TRUE, 0, 0,
_("Change the intensity of the blue channel"), NULL);
g_signal_connect (elements->blue, "value-changed",
G_CALLBACK (explorer_double_adjustment_update),
&wvals.bluestretch);
/* Color Function frame */
frame = gimp_frame_new (_("Color Function"));
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
hbox = gtk_hbox_new (FALSE, 12);
gtk_container_add (GTK_CONTAINER (frame), hbox);
gtk_widget_show (hbox);
/* Redmode radio frame */
frame = gimp_int_radio_group_new (TRUE, _("Red"),
G_CALLBACK (explorer_radio_update),
&wvals.redmode, wvals.redmode,
_("Sine"), SINUS,
&elements->redmode[SINUS],
_("Cosine"), COSINUS,
&elements->redmode[COSINUS],
_("None"), NONE,
&elements->redmode[NONE],
NULL);
gimp_help_set_help_data (elements->redmode[SINUS],
_("Use sine-function for this color component"),
NULL);
gimp_help_set_help_data (elements->redmode[COSINUS],
_("Use cosine-function for this color "
"component"), NULL);
gimp_help_set_help_data (elements->redmode[NONE],
_("Use linear mapping instead of any "
"trigonometrical function for this color "
"channel"), NULL);
gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
toggle_vbox = GTK_BIN (frame)->child;
elements->redinvert = toggle =
gtk_check_button_new_with_label (_("Inversion"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), wvals.redinvert);
gtk_box_pack_start (GTK_BOX (toggle_vbox), toggle, FALSE, FALSE, 0);
g_signal_connect (toggle, "toggled",
G_CALLBACK (explorer_toggle_update),
&wvals.redinvert);
gtk_widget_show (toggle);
gimp_help_set_help_data (toggle,
_("If you enable this option higher color values "
"will be swapped with lower ones and vice "
"versa"), NULL);
/* Greenmode radio frame */
frame = gimp_int_radio_group_new (TRUE, _("Green"),
G_CALLBACK (explorer_radio_update),
&wvals.greenmode, wvals.greenmode,
_("Sine"), SINUS,
&elements->greenmode[SINUS],
_("Cosine"), COSINUS,
&elements->greenmode[COSINUS],
_("None"), NONE,
&elements->greenmode[NONE],
NULL);
gimp_help_set_help_data (elements->greenmode[SINUS],
_("Use sine-function for this color component"),
NULL);
gimp_help_set_help_data (elements->greenmode[COSINUS],
_("Use cosine-function for this color "
"component"), NULL);
gimp_help_set_help_data (elements->greenmode[NONE],
_("Use linear mapping instead of any "
"trigonometrical function for this color "
"channel"), NULL);
gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
toggle_vbox = GTK_BIN (frame)->child;
elements->greeninvert = toggle =
gtk_check_button_new_with_label (_("Inversion"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), wvals.greeninvert);
gtk_box_pack_start (GTK_BOX (toggle_vbox), toggle, FALSE, FALSE, 0);
g_signal_connect (toggle, "toggled",
G_CALLBACK (explorer_toggle_update),
&wvals.greeninvert);
gtk_widget_show (toggle);
gimp_help_set_help_data (toggle,
_("If you enable this option higher color values "
"will be swapped with lower ones and vice "
"versa"), NULL);
/* Bluemode radio frame */
frame = gimp_int_radio_group_new (TRUE, _("Blue"),
G_CALLBACK (explorer_radio_update),
&wvals.bluemode, wvals.bluemode,
_("Sine"), SINUS,
&elements->bluemode[SINUS],
_("Cosine"), COSINUS,
&elements->bluemode[COSINUS],
_("None"), NONE,
&elements->bluemode[NONE],
NULL);
gimp_help_set_help_data (elements->bluemode[SINUS],
_("Use sine-function for this color component"),
NULL);
gimp_help_set_help_data (elements->bluemode[COSINUS],
_("Use cosine-function for this color "
"component"), NULL);
gimp_help_set_help_data (elements->bluemode[NONE],
_("Use linear mapping instead of any "
"trigonometrical function for this color "
"channel"), NULL);
gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
toggle_vbox = GTK_BIN (frame)->child;
elements->blueinvert = toggle =
gtk_check_button_new_with_label (_("Inversion"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON( toggle), wvals.blueinvert);
gtk_box_pack_start (GTK_BOX (toggle_vbox), toggle, FALSE, FALSE, 0);
g_signal_connect (toggle, "toggled",
G_CALLBACK (explorer_toggle_update),
&wvals.blueinvert);
gtk_widget_show (toggle);
gimp_help_set_help_data (toggle,
_("If you enable this option higher color values "
"will be swapped with lower ones and vice "
"versa"), NULL);
/* Colormode toggle box */
frame = gimp_frame_new (_("Color Mode"));
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
toggle_vbox = gtk_vbox_new (FALSE, 2);
gtk_container_add (GTK_CONTAINER (frame), toggle_vbox);
gtk_widget_show (toggle_vbox);
toggle = elements->colormode[0] =
gtk_radio_button_new_with_label (group, _("As specified above"));
group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (toggle));
gtk_box_pack_start (GTK_BOX (toggle_vbox), toggle, FALSE, FALSE, 0);
g_object_set_data (G_OBJECT (toggle), "gimp-item-data",
GINT_TO_POINTER (0));
g_signal_connect (toggle, "toggled",
G_CALLBACK (explorer_radio_update),
&wvals.colormode);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
wvals.colormode == 0);
gtk_widget_show (toggle);
gimp_help_set_help_data (toggle,
_("Create a color-map with the options you "
"specified above (color density/function). The "
"result is visible in the preview image"), NULL);
hbox = gtk_hbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (toggle_vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
toggle = elements->colormode[1] =
gtk_radio_button_new_with_label (group,
_("Apply active gradient to final image"));
group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (toggle));
gtk_box_pack_start (GTK_BOX (hbox), toggle, TRUE, TRUE, 0);
g_object_set_data (G_OBJECT (toggle), "gimp-item-data",
GINT_TO_POINTER (1));
g_signal_connect (toggle, "toggled",
G_CALLBACK (explorer_radio_update),
&wvals.colormode);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
wvals.colormode == 1);
gtk_widget_show (toggle);
gimp_help_set_help_data (toggle,
_("Create a color-map using a gradient from "
"the gradient editor"), NULL);
gradient_name = gimp_context_get_gradient ();
gimp_gradient_get_uniform_samples (gradient_name,
wvals.ncolors,
wvals.gradinvert,
&n_gradient_samples,
&gradient_samples);
gradient = gimp_gradient_select_widget_new (_("FractalExplorer Gradient"),
gradient_name,
explorer_gradient_select_callback,
NULL);
g_free (gradient_name);
gtk_box_pack_start (GTK_BOX (hbox), gradient, FALSE, FALSE, 0);
gtk_widget_show (gradient);
abox = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
{
gint xsize, ysize;
for (ysize = 1; ysize * ysize * ysize < 8192; ysize++) /**/;
xsize = wvals.ncolors / ysize;
while (xsize * ysize < 8192) xsize++;
gtk_widget_set_size_request (abox, xsize, ysize * 4);
}
gtk_box_pack_start (GTK_BOX (toggle_vbox), abox, FALSE, FALSE, 0);
gtk_widget_show (abox);
cmap_preview = gimp_preview_area_new ();
gtk_widget_set_size_request (cmap_preview, 32, 32);
gtk_container_add (GTK_CONTAINER (abox), cmap_preview);
g_signal_connect (cmap_preview, "size_allocate",
G_CALLBACK (cmap_preview_size_allocate), NULL);
gtk_widget_show (cmap_preview);
frame = add_objects_list ();
gtk_notebook_append_page (GTK_NOTEBOOK (notebook), frame,
gtk_label_new_with_mnemonic (_("_Fractals")));
gtk_widget_show (frame);
gtk_notebook_set_current_page (GTK_NOTEBOOK (notebook), 1);
gtk_widget_show (dialog);
ready_now = TRUE;
set_cmap_preview ();
dialog_update_preview ();
gtk_main ();
gdk_flush ();
g_free (wint.wimage);
return wint.run;
}
/**********************************************************************
FUNCTION: dialog_update_preview
*********************************************************************/
void
dialog_update_preview (void)
{
gdouble left;
gdouble right;
gdouble bottom;
gdouble top;
gdouble dx;
gdouble dy;
gdouble cx;
gdouble cy;
gint px;
gint py;
gint xcoord;
gint ycoord;
gint iteration;
guchar *p_ul;
gdouble a;
gdouble b;
gdouble x;
gdouble y;
gdouble oldx;
gdouble oldy;
gdouble foldxinitx;
gdouble foldxinity;
gdouble tempsqrx;
gdouble tempsqry;
gdouble tmpx = 0;
gdouble tmpy = 0;
gdouble foldyinitx;
gdouble foldyinity;
gdouble adjust;
gdouble xx = 0;
gint zaehler;
gint color;
gint useloglog;
if (NULL == wint.preview)
return;
if (ready_now && wvals.alwayspreview)
{
left = sel_x1;
right = sel_x2 - 1;
bottom = sel_y2 - 1;
top = sel_y1;
dx = (right - left) / (preview_width - 1);
dy = (bottom - top) / (preview_height - 1);
xmin = wvals.xmin;
xmax = wvals.xmax;
ymin = wvals.ymin;
ymax = wvals.ymax;
cx = wvals.cx;
cy = wvals.cy;
xbild = preview_width;
ybild = preview_height;
xdiff = (xmax - xmin) / xbild;
ydiff = (ymax - ymin) / ybild;
py = 0;
p_ul = wint.wimage;
iteration = (int) wvals.iter;
useloglog = wvals.useloglog;
for (ycoord = 0; ycoord < preview_height; ycoord++)
{
px = 0;
for (xcoord = 0; xcoord < preview_width; xcoord++)
{
a = (double) xmin + (double) xcoord *xdiff;
b = (double) ymin + (double) ycoord *ydiff;
if (wvals.fractaltype != TYPE_MANDELBROT)
{
tmpx = x = a;
tmpy = y = b;
}
else
{
x = 0;
y = 0;
}
for (zaehler = 0;
(zaehler < iteration) && ((x * x + y * y) < 4);
zaehler++)
{
oldx = x;
oldy = y;
switch (wvals.fractaltype)
{
case TYPE_MANDELBROT:
xx = x * x - y * y + a;
y = 2.0 * x * y + b;
break;
case TYPE_JULIA:
xx = x * x - y * y + cx;
y = 2.0 * x * y + cy;
break;
case TYPE_BARNSLEY_1:
foldxinitx = oldx * cx;
foldyinity = oldy * cy;
foldxinity = oldx * cy;
foldyinitx = oldy * cx;
/* orbit calculation */
if (oldx >= 0)
{
xx = (foldxinitx - cx - foldyinity);
y = (foldyinitx - cy + foldxinity);
}
else
{
xx = (foldxinitx + cx - foldyinity);
y = (foldyinitx + cy + foldxinity);
}
break;
case TYPE_BARNSLEY_2:
foldxinitx = oldx * cx;
foldyinity = oldy * cy;
foldxinity = oldx * cy;
foldyinitx = oldy * cx;
/* orbit calculation */
if (foldxinity + foldyinitx >= 0)
{
xx = foldxinitx - cx - foldyinity;
y = foldyinitx - cy + foldxinity;
}
else
{
xx = foldxinitx + cx - foldyinity;
y = foldyinitx + cy + foldxinity;
}
break;
case TYPE_BARNSLEY_3:
foldxinitx = oldx * oldx;
foldyinity = oldy * oldy;
foldxinity = oldx * oldy;
/* orbit calculation */
if(oldx > 0)
{
xx = foldxinitx - foldyinity - 1.0;
y = foldxinity * 2;
}
else
{
xx = foldxinitx - foldyinity -1.0 + cx * oldx;
y = foldxinity * 2;
y += cy * oldx;
}
break;
case TYPE_SPIDER:
/* { c=z=pixel: z=z*z+c; c=c/2+z, |z|<=4 } */
xx = x*x - y*y + tmpx + cx;
y = 2 * oldx * oldy + tmpy +cy;
tmpx = tmpx/2 + xx;
tmpy = tmpy/2 + y;
break;
case TYPE_MAN_O_WAR:
xx = x*x - y*y + tmpx + cx;
y = 2.0 * x * y + tmpy + cy;
tmpx = oldx;
tmpy = oldy;
break;
case TYPE_LAMBDA:
tempsqrx = x * x;
tempsqry = y * y;
tempsqrx = oldx - tempsqrx + tempsqry;
tempsqry = -(oldy * oldx);
tempsqry += tempsqry + oldy;
xx = cx * tempsqrx - cy * tempsqry;
y = cx * tempsqry + cy * tempsqrx;
break;
case TYPE_SIERPINSKI:
xx = oldx + oldx;
y = oldy + oldy;
if (oldy > .5)
y = y - 1;
else if (oldx > .5)
xx = xx - 1;
break;
default:
break;
}
x = xx;
}
if (useloglog)
{
adjust = log (log (x * x + y * y) / 2) / log (2);
}
else
{
adjust = 0.0;
}
color = (int) (((zaehler - adjust) *
(wvals.ncolors - 1)) / iteration);
p_ul[0] = colormap[color][0];
p_ul[1] = colormap[color][1];
p_ul[2] = colormap[color][2];
p_ul += 3;
px += 1;
} /* for */
py += 1;
} /* for */
preview_redraw ();
gdk_flush ();
}
}
/**********************************************************************
FUNCTION: cmap_preview_size_allocate()
*********************************************************************/
static void
cmap_preview_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
gint i;
gint x;
gint y;
gint j;
guchar *b;
GimpPreviewArea *preview = GIMP_PREVIEW_AREA (widget);
b = g_new (guchar, allocation->width * allocation->height * 3);
for (y = 0; y < allocation->height; y++)
{
for (x = 0; x < allocation->width; x++)
{
i = x + (y / 4) * allocation->width;
if (i > wvals.ncolors)
{
for (j = 0; j < 3; j++)
b[(y*allocation->width + x) * 3 + j] = 0;
}
else
{
for (j = 0; j < 3; j++)
b[(y*allocation->width + x) * 3 + j] = colormap[i][j];
}
}
}
gimp_preview_area_draw (preview,
0, 0, allocation->width, allocation->height,
GIMP_RGB_IMAGE, b, allocation->width*3);
gtk_widget_queue_draw (cmap_preview);
g_free (b);
}
/**********************************************************************
FUNCTION: set_cmap_preview()
*********************************************************************/
void
set_cmap_preview (void)
{
gint xsize, ysize;
if (NULL == cmap_preview)
return;
make_color_map ();
for (ysize = 1; ysize * ysize * ysize < wvals.ncolors; ysize++)
/**/;
xsize = wvals.ncolors / ysize;
while (xsize * ysize < wvals.ncolors)
xsize++;
gtk_widget_set_size_request (cmap_preview, xsize, ysize * 4);
}
/**********************************************************************
FUNCTION: make_color_map()
*********************************************************************/
void
make_color_map (void)
{
gint i;
gint j;
gint r;
gint gr;
gint bl;
gdouble redstretch;
gdouble greenstretch;
gdouble bluestretch;
gdouble pi = atan (1) * 4;
/* get gradient samples if they don't exist -- fixes gradient color
* mode for noninteractive use (bug #103470).
*/
if (gradient_samples == NULL)
{
gchar *gradient_name = gimp_context_get_gradient ();
gimp_gradient_get_uniform_samples (gradient_name,
wvals.ncolors,
wvals.gradinvert,
&n_gradient_samples,
&gradient_samples);
g_free (gradient_name);
}
redstretch = wvals.redstretch * 127.5;
greenstretch = wvals.greenstretch * 127.5;
bluestretch = wvals.bluestretch * 127.5;
for (i = 0; i < wvals.ncolors; i++)
if (wvals.colormode == 1)
{
for (j = 0; j < 3; j++)
colormap[i][j] = (int) (gradient_samples[i * 4 + j] * 255.0);
}
else
{
double x = (i*2.0) / wvals.ncolors;
r = gr = bl = 0;
switch (wvals.redmode)
{
case SINUS:
r = (int) redstretch *(1.0 + sin((x - 1) * pi));
break;
case COSINUS:
r = (int) redstretch *(1.0 + cos((x - 1) * pi));
break;
case NONE:
r = (int)(redstretch *(x));
break;
default:
break;
}
switch (wvals.greenmode)
{
case SINUS:
gr = (int) greenstretch *(1.0 + sin((x - 1) * pi));
break;
case COSINUS:
gr = (int) greenstretch *(1.0 + cos((x - 1) * pi));
break;
case NONE:
gr = (int)(greenstretch *(x));
break;
default:
break;
}
switch (wvals.bluemode)
{
case SINUS:
bl = (int) bluestretch * (1.0 + sin ((x - 1) * pi));
break;
case COSINUS:
bl = (int) bluestretch * (1.0 + cos ((x - 1) * pi));
break;
case NONE:
bl = (int) (bluestretch * x);
break;
default:
break;
}
r = MIN (r, 255);
gr = MIN (gr, 255);
bl = MIN (bl, 255);
if (wvals.redinvert)
r = 255 - r;
if (wvals.greeninvert)
gr = 255 - gr;
if (wvals.blueinvert)
bl = 255 - bl;
colormap[i][0] = r;
colormap[i][1] = gr;
colormap[i][2] = bl;
}
}
/**********************************************************************
FUNCTION: dialog_change_scale
*********************************************************************/
void
dialog_change_scale (void)
{
ready_now = FALSE;
gtk_adjustment_set_value (GTK_ADJUSTMENT (elements->xmin), wvals.xmin);
gtk_adjustment_set_value (GTK_ADJUSTMENT (elements->xmax), wvals.xmax);
gtk_adjustment_set_value (GTK_ADJUSTMENT (elements->ymin), wvals.ymin);
gtk_adjustment_set_value (GTK_ADJUSTMENT (elements->ymax), wvals.ymax);
gtk_adjustment_set_value (GTK_ADJUSTMENT (elements->iter), wvals.iter);
gtk_adjustment_set_value (GTK_ADJUSTMENT (elements->cx), wvals.cx);
gtk_adjustment_set_value (GTK_ADJUSTMENT (elements->cy), wvals.cy);
gtk_adjustment_set_value (GTK_ADJUSTMENT (elements->red), wvals.redstretch);
gtk_adjustment_set_value (GTK_ADJUSTMENT (elements->green),wvals.greenstretch);
gtk_adjustment_set_value (GTK_ADJUSTMENT (elements->blue), wvals.bluestretch);
gtk_toggle_button_set_active
(GTK_TOGGLE_BUTTON (elements->type[wvals.fractaltype]), TRUE);
gtk_toggle_button_set_active
(GTK_TOGGLE_BUTTON (elements->redmode[wvals.redmode]), TRUE);
gtk_toggle_button_set_active
(GTK_TOGGLE_BUTTON (elements->greenmode[wvals.greenmode]), TRUE);
gtk_toggle_button_set_active
(GTK_TOGGLE_BUTTON (elements->bluemode[wvals.bluemode]), TRUE);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (elements->redinvert),
wvals.redinvert);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (elements->greeninvert),
wvals.greeninvert);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (elements->blueinvert),
wvals.blueinvert);
gtk_toggle_button_set_active
(GTK_TOGGLE_BUTTON (elements->colormode[wvals.colormode]), TRUE);
ready_now = TRUE;
}
/**********************************************************************
FUNCTION: save_options
*********************************************************************/
static void
save_options (FILE * fp)
{
/* Save options */
fprintf (fp, "fractaltype: %i\n", wvals.fractaltype);
fprintf (fp, "xmin: %0.15f\n", wvals.xmin);
fprintf (fp, "xmax: %0.15f\n", wvals.xmax);
fprintf (fp, "ymin: %0.15f\n", wvals.ymin);
fprintf (fp, "ymax: %0.15f\n", wvals.ymax);
fprintf (fp, "iter: %0.15f\n", wvals.iter);
fprintf (fp, "cx: %0.15f\n", wvals.cx);
fprintf (fp, "cy: %0.15f\n", wvals.cy);
fprintf (fp, "redstretch: %0.15f\n", wvals.redstretch * 128.0);
fprintf (fp, "greenstretch: %0.15f\n", wvals.greenstretch * 128.0);
fprintf (fp, "bluestretch: %0.15f\n", wvals.bluestretch * 128.0);
fprintf (fp, "redmode: %i\n", wvals.redmode);
fprintf (fp, "greenmode: %i\n", wvals.greenmode);
fprintf (fp, "bluemode: %i\n", wvals.bluemode);
fprintf (fp, "redinvert: %i\n", wvals.redinvert);
fprintf (fp, "greeninvert: %i\n", wvals.greeninvert);
fprintf (fp, "blueinvert: %i\n", wvals.blueinvert);
fprintf (fp, "colormode: %i\n", wvals.colormode);
fputs ("#**********************************************************************\n", fp);
fprintf(fp, "<EOF>\n");
fputs ("#**********************************************************************\n", fp);
}
static void
save_callback (void)
{
FILE *fp;
const gchar *savename = filename;
fp = g_fopen (savename, "wt+");
if (!fp)
{
g_message (_("Could not open '%s' for writing: %s"),
gimp_filename_to_utf8 (savename), g_strerror (errno));
return;
}
/* Write header out */
fputs (FRACTAL_HEADER, fp);
fputs ("#**********************************************************************\n", fp);
fputs ("# This is a data file for the Fractal Explorer plug-in for the GIMP *\n", fp);
fputs ("#**********************************************************************\n", fp);
save_options (fp);
if (ferror (fp))
g_message (_("Could not write '%s': %s"),
gimp_filename_to_utf8 (savename), g_strerror (ferror (fp)));
fclose (fp);
}
static void
save_file_chooser_response (GtkFileChooser *chooser,
gint response_id,
gpointer data)
{
if (response_id == GTK_RESPONSE_OK)
{
filename = gtk_file_chooser_get_filename (chooser);
save_callback ();
}
gtk_widget_destroy (GTK_WIDGET (chooser));
}
static void
load_file_chooser_response (GtkFileChooser *chooser,
gint response_id,
gpointer data)
{
if (response_id == GTK_RESPONSE_OK)
{
filename = gtk_file_chooser_get_filename (chooser);
if (g_file_test (filename, G_FILE_TEST_IS_REGULAR))
{
explorer_load ();
}
gtk_widget_show (maindlg);
dialog_change_scale ();
set_cmap_preview ();
dialog_update_preview ();
}
gtk_widget_destroy (GTK_WIDGET (chooser));
}
static void
create_load_file_chooser (GtkWidget *widget,
GtkWidget *dialog)
{
static GtkWidget *window = NULL;
if (!window)
{
window =
gtk_file_chooser_dialog_new (_("Load Fractal Parameters"),
GTK_WINDOW (dialog),
GTK_FILE_CHOOSER_ACTION_OPEN,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OPEN, GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_default_response (GTK_DIALOG (window), GTK_RESPONSE_OK);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (window),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed),
&window);
g_signal_connect (window, "response",
G_CALLBACK (load_file_chooser_response),
window);
}
gtk_window_present (GTK_WINDOW (window));
}
static void
create_save_file_chooser (GtkWidget *widget,
GtkWidget *dialog)
{
static GtkWidget *window = NULL;
if (! window)
{
window =
gtk_file_chooser_dialog_new (_("Save Fractal Parameters"),
GTK_WINDOW (dialog),
GTK_FILE_CHOOSER_ACTION_SAVE,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_SAVE, GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_default_response (GTK_DIALOG (window), GTK_RESPONSE_OK);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (window),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed),
&window);
g_signal_connect (window, "response",
G_CALLBACK (save_file_chooser_response),
window);
}
if (tpath)
{
gtk_file_chooser_set_filename (GTK_FILE_CHOOSER (window), tpath);
}
else if (fractalexplorer_path)
{
GList *path_list;
gchar *dir;
path_list = gimp_path_parse (fractalexplorer_path, 16, FALSE, NULL);
dir = gimp_path_get_user_writable_dir (path_list);
if (!dir)
dir = g_strdup (gimp_directory ());
gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (window), dir);
g_free (dir);
gimp_path_free (path_list);
}
else
{
gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (window), "/tmp");
}
gtk_window_present (GTK_WINDOW (window));
}
gchar*
get_line (gchar *buf,
gint s,
FILE *from,
gint init)
{
gint slen;
gchar *ret;
if (init)
line_no = 1;
else
line_no++;
do
{
ret = fgets (buf, s, from);
}
while (!ferror (from) && buf[0] == '#');
slen = strlen (buf);
/* The last newline is a pain */
if (slen > 0)
buf[slen - 1] = '\0';
if (ferror (from))
{
g_warning ("Error reading file");
return NULL;
}
return ret;
}
gint
load_options (fractalexplorerOBJ *xxx,
FILE *fp)
{
gchar load_buf[MAX_LOAD_LINE];
gchar str_buf[MAX_LOAD_LINE];
gchar opt_buf[MAX_LOAD_LINE];
/* default values */
xxx->opts = standardvals;
xxx->opts.gradinvert = FALSE;
get_line (load_buf, MAX_LOAD_LINE, fp, 0);
while (!feof (fp) && strcmp (load_buf, "<EOF>"))
{
/* Get option name */
sscanf (load_buf, "%s %s", str_buf, opt_buf);
if (!strcmp (str_buf, "fractaltype:"))
{
gint sp = 0;
sp = atoi (opt_buf);
if (sp < 0)
return -1;
xxx->opts.fractaltype = sp;
}
else if (!strcmp (str_buf, "xmin:"))
{
xxx->opts.xmin = g_ascii_strtod (opt_buf, NULL);
}
else if (!strcmp (str_buf, "xmax:"))
{
xxx->opts.xmax = g_ascii_strtod (opt_buf, NULL);
}
else if (!strcmp(str_buf, "ymin:"))
{
xxx->opts.ymin = g_ascii_strtod (opt_buf, NULL);
}
else if (!strcmp (str_buf, "ymax:"))
{
xxx->opts.ymax = g_ascii_strtod (opt_buf, NULL);
}
else if (!strcmp(str_buf, "redstretch:"))
{
gdouble sp = g_ascii_strtod (opt_buf, NULL);
xxx->opts.redstretch = sp / 128.0;
}
else if (!strcmp(str_buf, "greenstretch:"))
{
gdouble sp = g_ascii_strtod (opt_buf, NULL);
xxx->opts.greenstretch = sp / 128.0;
}
else if (!strcmp (str_buf, "bluestretch:"))
{
gdouble sp = g_ascii_strtod (opt_buf, NULL);
xxx->opts.bluestretch = sp / 128.0;
}
else if (!strcmp (str_buf, "iter:"))
{
xxx->opts.iter = g_ascii_strtod (opt_buf, NULL);
}
else if (!strcmp(str_buf, "cx:"))
{
xxx->opts.cx = g_ascii_strtod (opt_buf, NULL);
}
else if (!strcmp (str_buf, "cy:"))
{
xxx->opts.cy = g_ascii_strtod (opt_buf, NULL);
}
else if (!strcmp(str_buf, "redmode:"))
{
xxx->opts.redmode = atoi (opt_buf);
}
else if (!strcmp(str_buf, "greenmode:"))
{
xxx->opts.greenmode = atoi (opt_buf);
}
else if (!strcmp(str_buf, "bluemode:"))
{
xxx->opts.bluemode = atoi (opt_buf);
}
else if (!strcmp (str_buf, "redinvert:"))
{
xxx->opts.redinvert = atoi (opt_buf);
}
else if (!strcmp (str_buf, "greeninvert:"))
{
xxx->opts.greeninvert = atoi (opt_buf);
}
else if (!strcmp(str_buf, "blueinvert:"))
{
xxx->opts.blueinvert = atoi (opt_buf);
}
else if (!strcmp (str_buf, "colormode:"))
{
xxx->opts.colormode = atoi (opt_buf);
}
get_line (load_buf, MAX_LOAD_LINE, fp, 0);
}
return 0;
}
void
explorer_load (void)
{
FILE *fp;
gchar load_buf[MAX_LOAD_LINE];
g_assert (filename != NULL);
fp = g_fopen (filename, "rt");
if (!fp)
{
g_message (_("Could not open '%s' for reading: %s"),
gimp_filename_to_utf8 (filename), g_strerror (errno));
return;
}
get_line (load_buf, MAX_LOAD_LINE, fp, 1);
if (strncmp (FRACTAL_HEADER, load_buf, strlen (load_buf)))
{
g_message (_("'%s' is not a FractalExplorer file"),
gimp_filename_to_utf8 (filename));
return;
}
if (load_options (current_obj,fp))
{
g_message (_("'%s' is corrupt. Line %d Option section incorrect"),
gimp_filename_to_utf8 (filename), line_no);
return;
}
wvals = current_obj->opts;
fclose (fp);
}
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