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[/] [or1k/] [trunk/] [insight/] [gdb/] [gdbtk/] [library/] [attachdlg.itb] - Rev 1765

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#
# attachdlg.itb - itcl implementations for class AttachDlg
# ----------------------------------------------------------------------
# Implements Attach to process window...
#
# ----------------------------------------------------------------------
#   Copyright (C) 1999 Cygnus Solutions
#

body AttachDlg::constructor {args} {

  window_name "Attach To Process"
  build_win
  eval itk_initialize $args

}

body AttachDlg::build_win {} {
  
  # CHOOSE_PID: the list box with list or processes.  Also an entry
  # for typing in the PID by hand.

  itk_component add choose_pid {
    iwidgets::scrolledlistbox $itk_interior.cpid -visibleitems 30x15 \
      -labeltext "Choose process" -labelpos nw \
      -labelrelief groove -labelborderwidth 2 \
      -ipadx 8 -ipady 6 -childsitepos s -hscrollmode none \
      -textbackground white -exportselection 0 \
      -selectioncommand [code $this select_pid] \
      -dblclickcommand [code $this doit]
  }

  itk_component add pid_filter {
    iwidgets::entryfield [$itk_component(choose_pid) childsite].filt \
      -labeltext Filter: -textbackground white \
      -focuscommand [code $this clear_pid_selection] \
      -command [code $this filter_pid_selection]
  }

  $itk_component(pid_filter) insert 0 *

  itk_component add pid_sep {
    frame [$itk_component(choose_pid) childsite].sep \
      -height 2 -borderwidth 1 -relief sunken
  }

  # PID_ENTRY: this is the PID entry box.  You can enter the pid
  # by hand here, or click on the listbox to have it entered for you.

  itk_component add pid_entry {
    iwidgets::entryfield [$itk_component(choose_pid) childsite].lab \
      -labeltext PID: -validate numeric -textbackground white \
      -focuscommand [code $this clear_pid_selection]
  }
  pack $itk_component(pid_filter) -fill x -side top -pady 4
  pack $itk_component(pid_sep) -fill x -side top -pady 8
  pack $itk_component(pid_entry) -fill x -side bottom -pady 4
  

  itk_component add symbol_label {
    iwidgets::labeledframe $itk_interior.sym -labeltext "Choose Exec file" \
      -labelpos nw -labelrelief groove -labelborderwidth 2 \
      -ipadx 8 -ipady 6 
  }

  itk_component add symbol_file {
    iwidgets::entryfield [$itk_interior.sym childsite].f -labeltext File: \
      -textbackground white
  }
  pack $itk_component(symbol_file) -pady 4 -padx 4 -fill x
  # can't use the -state in the entryfield, 'cause that affects the
  # label as well...
  $itk_component(symbol_file) component entry configure -state disabled
  
  $itk_component(symbol_file) configure -state normal
  $itk_component(symbol_file) insert 0 $::gdb_exe_name
  $itk_component(symbol_file) configure -state disabled
  
  itk_component add symbol_browse {
    button [$itk_component(symbol_file) childsite].br -text Choose... \
      -command [code $this choose_symbol_file]
  }
  pack $itk_component(symbol_browse) -pady 4 -padx 4 -ipadx 4

  itk_component add button_box {
    frame $itk_interior.b
  }
  
  itk_component add cancel {
    button $itk_component(button_box).cancel -text Cancel \
      -command [code $this cancel]
  }

  itk_component add ok {
    button $itk_component(button_box).ok -text OK -command [code $this doit]
  }
  
  if {$::gdb_exe_name == ""} {
    $itk_component(ok) configure -state disabled
  }  

  ::standard_button_box $itk_component(button_box)

  pack $itk_component(button_box) -side bottom -fill x \
    -pady 4 -padx 4
  pack $itk_component(symbol_label) -side bottom -fill x -pady 4 -padx 4
  pack $itk_component(choose_pid) -fill both -expand 1 -pady 4 -padx 4

  after idle [list update idletasks;  $this list_pids]

}

# ------------------------------------------------------------------
#  METHOD:  doit - This accepts the attach command.
# ------------------------------------------------------------------

body AttachDlg::doit {} {
  set AttachDlg::last_button 1
  set AttachDlg::last_pid [$itk_component(pid_entry) get]
  set AttachDlg::symbol_file [$itk_component(symbol_file) get]
  debug "About to unpost"
  unpost
}

# ------------------------------------------------------------------
#  METHOD:  cancel - unpost the dialog box without attaching.
# ------------------------------------------------------------------

body AttachDlg::cancel {} {
  set AttachDlg::last_button 0
  set AttachDlg::last_pid {}
  unpost
}

# ------------------------------------------------------------------
#  METHOD:  choose_symbol_file - Query for a new symbol file.
# ------------------------------------------------------------------

body AttachDlg::choose_symbol_file {} {
  set file [tk_getOpenFile -parent . -title "Load New Executable"]
  if {$file != ""} {
    $itk_component(symbol_file) configure -state normal
    $itk_component(symbol_file) clear
    $itk_component(symbol_file) insert 0 $file
    $itk_component(symbol_file) configure -state disabled
    $itk_component(ok) configure -state active
  }
}


# ------------------------------------------------------------------
#  METHOD:  list_pids - List the available processes.  Right now,
#           this just spawns ps, which means we have to deal with
#           all the different ps flags & output formats.  At some
#           point we should steal some C code to do it by hand.
# ------------------------------------------------------------------

body AttachDlg::list_pids {{pattern *}} {
  global tcl_platform

  switch $tcl_platform(os) {
    Linux {
      set ps_cmd "ps axw"
    }
    default {
      set ps_cmd "ps w"
    }
  }
  if {[catch {::open "|$ps_cmd" r} psH]} {
    set errTxt "Could not exec ps: $psH
You will have to enter the PID by hand."
    ManagedWin::open WarningDlg -message [list $errTxt]
    return
  }
  gets $psH header

  set nfields [llength $header]
  set nfields_m_1 [expr {$nfields - 1}]
  set regexp {^ *([^ ]*) +}
  for {set i 1} {$i < $nfields_m_1} {incr i} {
    append regexp {[^ ]* +}
  }
  append regexp {(.*)$}
  
  $itk_component(choose_pid) clear
  set pid_list {}

  while {[gets $psH line] >= 0} {
    regexp $regexp $line dummy PID COMMAND
    if {[string match $pattern $COMMAND]} {
      lappend pid_list [list $PID $COMMAND]
      $itk_component(choose_pid) insert end $COMMAND
    }
  }

  close $psH
  $itk_component(choose_pid) selection set 0
  select_pid

}

# ------------------------------------------------------------------
#  METHOD:  select_pid - Grab the selected element from the PID listbox
#           and insert the associated PID into the entry form.
# ------------------------------------------------------------------

body AttachDlg::select_pid {} {
  set hit [$itk_component(choose_pid) curselection]
  if {$hit != ""} {
    $itk_component(pid_entry) clear
    $itk_component(pid_entry) insert 0 [lindex [lindex $pid_list $hit] 0]
  }
}

# ------------------------------------------------------------------
#  METHOD:  clear_pid_selection - Clear the current PID selection.
# ------------------------------------------------------------------

body AttachDlg::clear_pid_selection {} {
  $itk_component(choose_pid) selection clear 0 end
  $itk_component(pid_entry) selection range 0 end
}

# ------------------------------------------------------------------
#  METHOD:  filter_pid_selection - Filters the pid box.
# ------------------------------------------------------------------

body AttachDlg::filter_pid_selection {} {
  
  list_pids [$itk_component(pid_filter) get]
}

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