::AddButtonToActionFrame

To add the “Back” and “Next” buttons to the wizard dialog:

namespace eval ::my_wizard {
    variable p_dlg ""
    variable panel_list {}
    variable current_panel 0
}

proc ::my_wizard::Run {} {
    set mangle [::model::GetMangle my_wizard_Run]
    variable p_dlg
    variable current_panel 0

    set p_dlg [::model::mdlWizardDlg wiz$mangle -width 600 -height 400 \
        -title "My Wizard" -showExport false -callback "::my_wizard::OnClose"]
    
    set frm [::model::mdlWizardDlg::GetButtonFrame $p_dlg]
    ::model::mdlWizardDlg::AddButtonToActionFrame $frm btnBack 4 "< Back" ::my_wizard::OnBack
    ::model::mdlWizardDlg::AddButtonToActionFrame $frm btnNext 6 "Next >" ::my_wizard::OnNext
    ::model::mdlWizardDlg::SetCloseButtonText "Finish"

    variable panel_list [InitializePanelList]
    DisplayPanel  
    ::model::mdlWizardDlg::ShowDialog
}

proc ::my_wizard::InitializePanelList {} {  
    hwi GetSessionHandle sess1
    sess1 GetProjectHandle pro1
    sess1 ReleaseHandle
    pro1 GetPageHandle pa1 [pro1 GetActivePage]
    pro1 ReleaseHandle
    pa1 GetWindowHandle win1 [pa1 GetActiveWindow]
    pa1 ReleaseHandle
    win1 GetClientHandle mcl
    win1 ReleaseHandle
    mcl GetRootObjectHandle mo
    mcl ReleaseHandle
    mo InterpretEntity en1 Point p_abtaf_1 "\"Point 1\""
    mo InterpretEntity en2 Point p_abtaf_2 "\"Point 2\""
    mo InterpretEntity en3 Point p_abtaf_3 "\"Point 3\""
    mo ReleaseHandle

    return { en1 en2 en3 }
}

proc ::my_wizard::DisplayPanel {} {  
    set mangle [::model::GetMangle my_wizard_DisplayPanel]
    variable current_panel
    variable panel_list
    set tmp [lindex $panel_list $current_panel]
    $tmp GetObjectHandle pCurPoint$mangle
    set lbl "My Wizard - [pCurPoint$mangle GetLabel]"
    pCurPoint$mangle ReleaseHandle
    ::model::mdlWizardDlg::ChangeTitle "$lbl"
    
    set frmParent [::model::mdlWizardDlg::GetDialogFrame]
    grid rowconfigure $frmParent 0 -weight 1
    grid columnconfigure $frmParent 0 -weight 1
    
    catch { destroy $frmParent.frmPanel }
    set frm [frame $frmParent.frmPanel]
    grid rowconfigure $frm 0 -weight 1
    grid columnconfigure $frm 0 -weight 1
    set txt "Point: $lbl"
    set wLbl [label $frm.lbl -text $txt]
    grid $wLbl -row 0 -column 0    
    grid $frm -row 0 -column 0 -sticky nesw
        
    UpdateBackNextButtonStates
}

proc ::my_wizard::UpdateBackNextButtonStates {} {
    variable p_dlg
    variable current_panel
    variable panel_list
    set nLastIndex [ expr { [llength $panel_list] - 1 } ]
    
    set frm [::model::mdlWizardDlg::GetButtonFrame $p_dlg]
    set bEnableBack [ expr { $current_panel > 0 && $nLastIndex > 0} ]
    set bEnableNext [ expr { $current_panel < $nLastIndex } ]
    if { $bEnableBack } { ::hwt::EnableCanvasButton $frm.btnBack } else { ::hwt::DisableCanvasButton $frm.btnBack }
    if { $bEnableNext } { ::hwt::EnableCanvasButton $frm.btnNext } else { ::hwt::DisableCanvasButton $frm.btnNext }
}

proc ::my_wizard::OnNext { args } {
    variable current_panel
    incr current_panel 1
    DisplayPanel
    UpdateBackNextButtonStates
}

proc ::my_wizard::OnBack { args } {
    variable current_panel
    incr current_panel -1
    DisplayPanel
    UpdateBackNextButtonStates
}

proc ::my_wizard::OnClose { args } {
    variable p_dlg
    hwt::UnpostWindow $p_dlg
    return 1
}

::my_wizard::Run