[wxperl-users] panel refrash ?

[Manfred H. <m.h...@ki...>]

Hello,

i have little bit extend the minimal.pl example with two panel's in the
subroutine Ps and Ps1.

When i switch from Ps to Ps1 in the MenUBar, the StaticText isn't show
correctly.
I believe i must rehash the panel or write the panel new?

Have someone an idea what i doing wrong here?

Manfred

#!/usr/bin/perl

use Wx;

package MyApp;

use strict;
use vars qw(@ISA);

@ISA=qw(Wx::App);

sub OnInit {
  my( $this ) = @_;

  # create new MyFrame
  my( $frame ) = MyFrame->new( "Minimal wxPerl app",
			       Wx::Point->new( 50, 50 ),
			       Wx::Size->new( 450, 350 )
                             );

  $this->SetTopWindow( $frame );
  # show the frame
  $frame->Show( 1 );

  1;
}

package MyFrame;

use strict;
use vars qw(@ISA);

@ISA=qw(Wx::Frame);

use Wx::Event qw(EVT_MENU);
use Wx qw(wxBITMAP_TYPE_ICO wxMENU_TEAROFF);

# Parameters: title, position, size
sub new {
  my( $class ) = shift;
  my( $this ) = $class->SUPER::new( undef, -1, $_[0], $_[1], $_[2] );

  # load an icon and set it as frame icon
  $this->SetIcon( Wx::GetWxPerlIcon() );

  # create the menus
  my( $mfile ) = Wx::Menu->new( undef, wxMENU_TEAROFF );
  my( $mhelp ) = Wx::Menu->new();

  my( $ID_ABOUT, $ID_EXIT, $ID_PS, $ID_PS1 ) = ( 1, 2, 3, 4 );
  $mhelp->Append( $ID_ABOUT, "&About...\tCtrl-A", "Show about dialog" );
  $mhelp->Append( $ID_PS, "&PS...\tCtrl-P", "PS" );
  $mhelp->Append( $ID_PS1, "&PS1...\tCtrl-P", "PS1" );
  $mfile->Append( $ID_EXIT, "E&xit\tAlt-X", "Quit this program" );

  my( $mbar ) = Wx::MenuBar->new();

  $mbar->Append( $mfile, "&File" );
  $mbar->Append( $mhelp, "&Help" );

  $this->SetMenuBar( $mbar );

  # declare that events coming from menu items with the given
  # id will be handled by these routines
  EVT_MENU( $this, $ID_EXIT, \&OnQuit );
  EVT_MENU( $this, $ID_ABOUT, \&OnAbout );
  EVT_MENU( $this, $ID_PS, \&Ps );
  EVT_MENU( $this, $ID_PS1, \&Ps1 );

  # create a status bar (note that the status bar that gets created
  # has three panes, see the OnCreateStatusBar callback below
  $this->CreateStatusBar( 1 );
  # and show a message
  $this->SetStatusText( "Welcome to wxPerl!", 1 );

  #my( $panel ) = Wx::Panel->new( $this, -1 );

  $this;
}

# this is an addition to demonstrate virtual callbacks...
# it ignores all parameters and creates a status bar with three fields
sub OnCreateStatusBar {
  my( $this ) = shift;
  my( $status ) = Wx::StatusBar->new( $this, -1 );

  $status->SetFieldsCount( 2 );

  $status;
}

# called when the user selects the 'Exit' menu item
sub OnQuit {
  my( $this, $event ) = @_;

  # closes the frame
  $this->Close( 1 );
}

use Wx qw(wxOK wxICON_INFORMATION wxVERSION_STRING wxVERTICAL wxLEFT);

# called when the user selects the 'About' menu item
sub OnAbout {
  my( $this, $event ) = @_;

  # display a simple about box
  Wx::MessageBox( "This is the about dialog of minimal sample.\n" .
		  "Welcome to wxPerl " . $Wx::VERSION . "\n" .
		  wxVERSION_STRING,
		  "About minimal", wxOK | wxICON_INFORMATION,
		  $this );
}

sub Ps {
	my( $this, $event ) = @_;
	print"Hallo Ps \n";	
	my $panel = Wx::Panel->new( $this, -1);
	my $label = new Wx::StaticText( $panel, -1, "Bitte Ps !",[ 20, 20 ],
[ 250, 15 ] );

	my $r0_sizer = Wx::BoxSizer->new(wxVERTICAL);
	$r0_sizer->Add($label,0, wxLEFT, 5);
	$panel->SetSizer($r0_sizer);
	$panel->SetAutoLayout(1);
}

sub Ps1 {
	my( $this, $event ) = @_;
	print"Hallo Ps1 \n";	
	my $panel = Wx::Panel->new( $this, -1);
	my $label = new Wx::StaticText( $panel, -1, "Bitte Ps1!",[ 20, 20 ],
[ 250, 15 ] );
	my $r0_sizer = Wx::BoxSizer->new(wxVERTICAL);
	$r0_sizer->Add($label,0, wxLEFT, 5);
	$panel->SetSizer($r0_sizer);
	$panel->SetAutoLayout(1);
}	

package main;

# create an instance of the Wx::App-derived class
my( $app ) = MyApp->new();
# start processing events
$app->MainLoop();