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package Demeter::UI::Common::Cursor;
use strict;
use warnings;
use Scalar::Util qw(looks_like_number);
use Time::HiRes qw(usleep);
use Wx qw( :everything );
use Wx::DND;
use base qw( Exporter );
our @EXPORT = qw(cursor);
# my %map = (
# bkg_e0 => 'E0',
# bkg_rbkg => 'Rbkg',
# bkg_pre1 => 'lower bound of pre-edge range',
# bkg_pre2 => 'upper bound of pre-edge range',
# bkg_nor1 => 'lower bound of normalization range',
# bkg_nor2 => 'upper bound of normalization range',
# bkg_spl1 => 'lower bound of spline range',
# bkg_spl2 => 'upper bound of spline range',
# bkg_spl1e => 'lower bound of spline range',
# bkg_spl2e => 'upper bound of spline range',
# fft_kmin => 'lower bound of forward Fourier transform range',
# fft_kmax => 'upper bound of forward Fourier transform range',
# bft_rmin => 'lower bound of backward Fourier transform range',
# bft_rmax => 'upper bound of backward Fourier transform range',
# );
sub cursor {
my ($app, $frame) = @_;
my ($x, $y) = (-100000, -100000);
my $parent = $frame || $app->{main};
my ($was, $is) = (q{ }, q{});
my $return = Demeter::Return->new();
my $busy;
if (Demeter->mo->template_plot eq 'pgplot') {
$app->{main}->status("Click on a point to pluck its value...", "wait");
Demeter->dispose("cursor(crosshair=true)");
($x, $y) = (Demeter->fetch_scalar("cursor_x"), Demeter->fetch_scalar("cursor_y"));
} elsif (Demeter->mo->template_plot eq 'gnuplot') { #and (Demeter->co->default('gnuplot', 'terminal') ne 'qt')) {
# my $recent;
# if (wxTheClipboard->Open) {
# $recent = Wx::TextDataObject->new;
# wxTheClipboard->GetData( $recent );
# wxTheClipboard->Close;
# };
# $was = $recent->GetText;
# my $yesno = Wx::MessageDialog
# -> new($parent,
# "1. Double click in the Gnuplot window to pluck a point.\n2. Then click ok to accept the value.",
# "Pluck a point",
# wxOK|wxICON_EXCLAMATION|wxSTAY_ON_TOP)
# -> ShowModal;
# my $tdo;
# if (wxTheClipboard->Open) {
# $tdo = Wx::TextDataObject->new;
# wxTheClipboard->GetData( $tdo );
# wxTheClipboard->Close;
# };
# $is = $tdo->GetText;
# ($x, $y) = split(/,\s+/, $is);
my $sleep = 200000;
my $wait = Demeter->co->default('gnuplot', 'pluck_timeout') * 1e6 / 200000;
if (wxTheClipboard->Open) {
$app->{main}->status("Double click on a point to pluck its value (there WILL be a short pause after clicking) ...", "wait");
$busy = Wx::BusyCursor->new();
my $tdo = Wx::TextDataObject->new;
$tdo->SetText(q{});
wxTheClipboard->GetData( $tdo );
wxTheClipboard->Close;
my $top_of_clipboard = $tdo->GetText;
my $new = $top_of_clipboard;
my $count = 0;
while ($new eq $top_of_clipboard) {
usleep($sleep); # 1/5 second
++$count;
if ($count > 50) { # 10 seconds have passed
$return->status(0);
$return->message("Pluck timed out!");
undef $busy;
return ($return, -100000, -100000);
};
wxTheClipboard->Open;
if (not wxTheClipboard->IsOpened) {
next;
};
next if not wxTheClipboard->IsSupported(wxDF_TEXT);
wxTheClipboard->GetData( $tdo );
wxTheClipboard->Close;
$new = $tdo->GetText;
$::app->{main}->Update;
};
($x, $y) = split(/,\s+/, $new);
};
} elsif ((Demeter->mo->template_plot eq 'gnuplot') and (Demeter->co->default('gnuplot', 'terminal') eq 'qt')) {
my $elog = Demeter->po->error_log;
my $sleep = 200000;
my $wait = Demeter->co->default('gnuplot', 'pluck_timeout') * 1e6 / 200000;
my $count = 0;
$app->{main}->status("Double click on a point to pluck its value (there WILL be a short pause after clicking) ...", "wait");
$busy = Wx::BusyCursor->new();
while ($count < 50) {
Demeter->mo->external_plot_object->gnuplot_cmd('print MOUSE_X, MOUSE_Y');
my @lines = split("$/", `cat $elog`);
my ($x, $y) = split(" ", $lines[-1]);
if (looks_like_number($x) and looks_like_number($y)) {
undef $busy;
return($return, $x, $y);
};
++$count;
usleep($sleep); # 1/5 second
};
$return->status(0);
$return->message("Pluck timed out!");
undef $busy;
return ($return, -100000, -100000);
} else {
$app->{main}->status("Unknown or unpluckable plotting backend. Pluck canceled.");
$return->status(0);
return ($return, $x, -100000);
};
undef $busy;
if ((Demeter->mo->template_plot eq 'gnuplot') and ($was eq $is)) {
$return->status(0);
$return->message("Plucking failed. Did you double click on the plot?");
return ($return, -100000, -100000);
};
if ((not looks_like_number($x)) and (not looks_like_number($y))) {
$return->status(0);
$return->message("Plucking failed. Neither coordinate appears to be a number.");
return ($return, -100000, -100000);
};
if (not looks_like_number($y)) {
$return->status(0);
$return->message("Plucking failed. The y coordinate appears not to be a number.");
return ($return, $x, -100000);
};
if (not looks_like_number($x)) {
$return->status(0);
$return->message("Plucking failed. The x coordinate appears not to be a number.");
return ($return, -100000, $y);
};
return ($return, $x, $y);
};
sub qt_cursor {
my ($self, $elog) = @_;
my @lines = split("$/", `cat $elog`);
return $lines[-1];
}
1;
=head1 NAME
Demeter::UI::Common::Cursor - interact with a plotting cursor
=head1 VERSION
This documentation refers to Demeter version 0.9.26.
=head1 SYNOPSIS
This module provides a way of interacting with the plot cursor for
Demeter's plotting backends
=head1 DEPENDENCIES
Demeter's dependencies are in the F<Build.PL> file.
=head1 BUGS AND LIMITATIONS
Please report problems to the Ifeffit Mailing List
(L<http://cars9.uchicago.edu/mailman/listinfo/ifeffit/>)
Patches are welcome.
=head1 AUTHOR
Bruce Ravel, L<http://bruceravel.github.io/home>
=head1 LICENCE AND COPYRIGHT
Copyright (c) 2006-2019 Bruce Ravel (L<http://bruceravel.github.io/home>). All rights reserved.
This module is free software; you can redistribute it and/or
modify it under the same terms as Perl itself. See L<perlgpl>.
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.
=cut
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