Subversion Repositories or1k

# Browswer window for Insight.
# Copyright 1998, 1999, 2001 Red Hat
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License (GPL) 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.


# ----------------------------------------------------------------------
# Implements Browser window for gdb
#
# ----------------------------------------------------------------------

# ------------------------------------------------------------------
#  CONSTRUCTOR - create new browser window
# ------------------------------------------------------------------

option add *BrowserWin.textBackground  white

body BrowserWin::constructor {args} {
  #eval itk_initialize $args 
  window_name "Function Browser"

  set Current(filename) {}
  set Current(function) {}
  _build_win

  eval itk_initialize $args

  # Create the toplevel binding for this class
  bind Configure_Browser_$this <Configure> [code $this _resize]

  add_hook file_changed_hook [code $this _fill_file_box]
}

# ------------------------------------------------------------------
#  DESTRUCTOR - destroy window containing widget
# ------------------------------------------------------------------
body BrowserWin::destructor {} {

  if {$resize_after != ""} {
    after cancel $resize_after
  }
  if {$filter_trace_after != ""} {
    after cancel $filter_trace_after
  }

  if {$MoreVisible} {
    pref set gdb/browser/view_is_open 1
  } else {
    pref set gdb/browser/view_is_open 0
  }

  remove_hook file_changed_hook [code $this _fill_file_box]
  trace vdelete [pref varname gdb/search/last_symbol] \
    w [code $this _filter_trace_proc]
}

# ------------------------------------------------------------------
#  METHOD:  _build_win - build the main browser window
# ------------------------------------------------------------------
body BrowserWin::_build_win {} {
  global PREFS_state gdb_ImageDir

  # Three frames: regexp, listboxes, and drop-down pane

  itk_component add filter {
    iwidgets::labeledframe $itk_interior.filter -labeltext "Filter" \
      -labelrelief groove -labelborderwidth 2 -ipadx 6 -ipady 4
  }

  append labelUpdateCode [$itk_component(filter) clientHandlesConfigure 1] "\n"

  itk_component add browser {
    frame $itk_interior.browser
  }

  itk_component add view {
    frame $itk_interior.view
  }

  # Set up the contents of the Filter frame

  itk_component add filt_label {
    label [$itk_component(filter) childsite].lbl -text {Show if function } \
      -font src-font
  }

  itk_component add filt_type {
    combobox::combobox [$itk_component(filter) childsite].type -height 4 \
      -width 15 -editable 0 \
      -command [code $this _set_filter_mode] \
      -font src-font
  } { }

  # Fill the filter mode combo-box

  foreach elem $filter_modes {
    $itk_component(filt_type) list insert end $elem
  }

  set cur_filter_mode [pref get gdb/search/filter_mode]
  if {[lsearch $filter_modes $cur_filter_mode] < 0} {
    set cur_filter_mode [lindex $filter_modes 0]
  }
  $itk_component(filt_type) entryset $cur_filter_mode

  itk_component add filt_entry {
    entry [$itk_component(filter) childsite].ent -font src-font \
      -textvariable [pref varname gdb/search/last_symbol] -background white
  } {
    usual Entry
    rename -background -textbackground textBackground Background
  }

  # Watch keystrokes into the entry box and filter on them...

  trace variable [pref varname gdb/search/last_symbol] w \
    [code $this _filter_trace_proc]

  pack $itk_component(filt_label) -side left 
  pack $itk_component(filt_type) -side left -padx 4 -fill y -pady 5
  pack $itk_component(filt_entry) -side right -fill both -expand 1 \
    -padx 6 -pady 5

  # Files Listbox for the Browser frame
  itk_component add file_box {
    iwidgets::scrolledlistbox $itk_component(browser).files \
      -selectmode extended -exportselection false \
      -labeltext "Files" -labelpos nw -labelrelief groove \
      -labelborderwidth 2 -ipadx 8 -ipady 6 \
      -childsitepos s -hscrollmode none -textbackground white
  }

  append labelUpdateCode [$itk_component(file_box) clientHandlesConfigure 1] \
    "\n"

  bind [$itk_component(file_box) component listbox] <ButtonRelease-1> \
    [code $this _process_file_selection %y]

  itk_component add file_sep {
    frame [$itk_component(file_box) childsite].sep -relief raised -height 2 \
      -borderwidth 1
  }
        
  itk_component add file_hide {
    checkbutton [$itk_component(file_box) childsite].hide \
      -text {Hide .h files} \
      -variable [pref varname gdb/browser/hide_h] \
      -command [code $this _file_hide_h]
  }

  itk_component add file_all {
    button [$itk_component(file_box) childsite].sel \
      -text {Select All} -width 12 \
      -command [code $this _select 1]
  }

  # Pack the file box in, and grid in the separate bits of the child-site.

  pack $itk_component(file_box) -side left -fill both -expand yes \
    -padx 5 -pady 5

  grid $itk_component(file_sep) -column 0 -row 0 -columnspan 2 \
    -sticky ew -pady 8
  grid $itk_component(file_hide) -column 0 -row 1 -padx 5 -sticky w
  grid $itk_component(file_all) -column 1 -row 1 -padx 5 -sticky e

  grid columnconfigure [$itk_component(file_box) childsite] 0 -weight 1

  # Functions Listbox for the Browser frame

  itk_component add func_box {
    iwidgets::scrolledlistbox $itk_component(browser).funcs \
      -selectmode extended \
      -exportselection false \
      -labeltext "Functions" -labelpos nw -labelrelief groove \
      -labelborderwidth 2 -ipadx 8 -ipady 6 \
      -childsitepos s -hscrollmode none -textbackground white
  }
            
  append labelUpdateCode [$itk_component(func_box) clientHandlesConfigure 1] \
    "\n"

  bind [$itk_component(func_box) component listbox] <ButtonRelease-1> \
    [code $this _process_func_selection %y]

  itk_component add func_sep {
    frame [$itk_component(func_box) childsite].sep -relief raised \
      -height 2 -borderwidth 1
  }
        
  itk_component add func_bp_label {   
    label [$itk_component(func_box) childsite].bpl -text {Breakpoints:}
  }

  itk_component add func_add_bp {   
    button [$itk_component(func_box) childsite].abp -text {Set} \
      -command [code $this do_all_bp 1]
  }

  itk_component add func_remove_bp {
    button [$itk_component(func_box) childsite].rbp -text {Delete} \
      -command [code $this do_all_bp 0]
  }

  # Pack in the Function box, and grid in the bits of the child-site

  pack $itk_component(func_box) -side right -fill both -expand yes \
    -padx 5 -pady 5

  grid $itk_component(func_sep) -row 0 -column 0 -columnspan 3 \
    -sticky ew -pady 8
  grid $itk_component(func_bp_label) -row 1 -column 0 -padx 5
  grid $itk_component(func_remove_bp) -row 1 -column 1  -padx 5
  grid $itk_component(func_add_bp) -row 1 -column 2  -padx 5

  grid columnconfigure [$itk_component(func_box) childsite] 1 -weight 1
  grid columnconfigure [$itk_component(func_box) childsite] 2 -weight 1

  # "More" frame for viewing source

  if {[lsearch [image names] _MORE_] == -1} {
    image create photo _MORE_ -file [file join $gdb_ImageDir more.gif]
    image create photo _LESS_ -file [file join $gdb_ImageDir less.gif]
  }

  itk_component add view_vis {
    frame $itk_interior.view.visible
  }

  itk_component add view_more {
    button $itk_component(view_vis).btn -image _MORE_ -relief flat \
                    -command [code $this _toggle_more]
  }

  itk_component add view_label {
    label $itk_component(view_vis).lbl -text {View Source}
  }

  itk_component add view_sep {
    frame $itk_component(view_vis).sep -relief raised -borderwidth 1 -height 2
  }

  pack $itk_component(view_more) -side left -padx 10 -pady 10
  pack $itk_component(view_label) -side left -padx 10 -pady 10
  pack $itk_component(view_sep) -padx 4 -pady 10 -fill x -expand 1

  grid columnconfigure $itk_component(view_vis) 2 -weight 1

  pack $itk_component(view_vis) -side top -fill x -expand yes

  # Key bindings for "visible" frames
  bind_plain_key $itk_component(filt_entry) Return [list $this search]
  bind $itk_component(func_box) <3> [code $this _toggle_bp %y]

  # Construct hidden frame

  itk_component add view_hidden {
    frame $itk_interior.hidden
  }

  itk_component add view_src {
    SrcTextWin $itk_component(view_hidden).src -Tracing 0 \
      -parent $this -ignore_var_balloons 1 
  } {
    rename -background -textbackground textBackground Background
  }    

  $itk_component(view_src) configure -textheight 2i

  itk_component add view_bottom {
    frame $itk_component(view_hidden).bottom
  }

  itk_component add view_name {
    label $itk_component(view_hidden).name -font src-font
  }

  itk_component add view_func {
    combobox::combobox $itk_component(view_bottom).combo -maxheight 15 \
      -font src-font \
      -command [code $this _goto_func]
  } {
    # Should be able to do this, but can't cause the combobox doesn't
    # fake up a MegaWidget well enough
    #rename -background -textbackground textBackground Background
  }
  
  itk_component add view_mode {
    combobox::combobox $itk_component(view_bottom).mode -width 9 \
      -font src-font \
      -command [code $this mode]
  } {
    #rename -background -textbackground textBackground Background
  }

  itk_component add view_search {
    entry $itk_component(view_bottom).search -borderwidth 2 \
      -font src-font -width 10 \
      -background white
  } {
    rename -background -textbackground textBackground Background
  }

  # Pack all the components of view_hidden into the frame:

  pack $itk_component(view_search) -side right -padx 5 -fill none \
    -expand 1 -anchor e
  pack $itk_component(view_mode) -side right -padx 5
  pack $itk_component(view_func) -side left

  pack $itk_component(view_name) -side top -fill x -padx 5 -pady 3
  pack $itk_component(view_bottom) -side bottom -fill x -pady 3 -padx 5
  pack $itk_component(view_src) -fill both -expand 1 -padx 5 -pady 3

  
  # Fill combo boxes
  $itk_component(view_mode) list insert end SOURCE
  $itk_component(view_mode) list insert end ASSEMBLY
  $itk_component(view_mode) list insert end MIXED

  # don't allow SRC+ASM mode... $itk_component(view_mode) insert end SRC+ASM
  $itk_component(view_mode) entryset [$itk_component(view_src) mode_get]

  # Key bindings for hidden frame
  bind_plain_key $itk_component(view_search) Return \
    [code $this _search_src forwards]
  bind_plain_key $itk_component(view_search) Shift-Return \
    [code $this _search_src backwards]

  # Now map everything onto the screen
  grid $itk_component(filter) -column 0 -row 0 -padx 6 -pady 4 -sticky ew
  grid $itk_component(browser) -column 0 -row 1 -sticky nsew
  grid $itk_component(view)  -column 0 -row 2 -pady 4 -padx 6 -sticky ew

  # Now set up any initial values:

  set MoreVisible [pref get gdb/browser/view_is_open]
  set BrowserHeight [pref get gdb/browser/top_height]
  set Width [pref get gdb/browser/width]

  if {$BrowserHeight > 0} {
    grid rowconfigure $itk_component(hull) $componentToRow(browser) \
      -minsize $BrowserHeight
  }
  
  if {$Width > 0} {
    grid columnconfigure $itk_component(hull) 0 -minsize $Width
  }

  grid rowconfigure $itk_component(hull) 1 -weight 1 
  grid columnconfigure $itk_component(hull) 0 -weight 1

  update idletasks
  eval $labelUpdateCode

  if {$MoreVisible} {
    debug "Got moreVisible at 1"
    set MoreVisible 0
    _toggle_more 1
  }

  # Fill file box
  _fill_file_box

  after idle "
    update idletasks
    grid rowconfigure $itk_component(hull) 2 \
        -minsize \[winfo height $itk_component(view)\]
  "

  # Finally set up the top level bindings:
  _bind_toplevel 1

}

# ------------------------------------------------------------------
#  METHOD:  _filter_trace_proc
#           This is called when something is entered in the filter
#           box.  The actual filtering is done in an after to avoid
#           flashing too much if the user is typing quickly.
# ------------------------------------------------------------------
body BrowserWin::_filter_trace_proc {v1 v2 mode} {
  if {$filter_trace_after != ""} {
    after cancel $filter_trace_after
  }
  set filter_trace_after [after 100 [code $this _filter_trace_after]]
}

# ------------------------------------------------------------------
#  METHOD:  _filter_trace_after
#           This is a wrapper around search, needed to pass to trace
# ------------------------------------------------------------------
body BrowserWin::_filter_trace_after {} {
  set filter_trace_after ""
  search
}

# ------------------------------------------------------------------
#  METHOD:  _search_src
#           Search for text or jump to a specific line
#           in source window, going in the specified DIRECTION.
# ------------------------------------------------------------------
body BrowserWin::_search_src {direction} {
  set exp [$itk_component(view_search) get]
  $itk_component(view_src) search $exp $direction
}

# ------------------------------------------------------------------
#  METHOD:  search
#           Search for functions matching regexp/pattern
#           in specified files
# ------------------------------------------------------------------
body BrowserWin::search {} {

  set files [$itk_component(file_box) getcurselection]

  if {[llength $files] == 0} {
    return
  }

  _freeze_me

  set filt_pat [format $filter_regexp($cur_filter_mode) \
                  [pref get gdb/search/last_symbol]]

  if {[llength $files] == [$itk_component(file_box) size]} {
    set err [catch {gdb_search functions $filt_pat \
                    -filename 1} matches]
  } else {
    set err [catch {gdb_search functions $filt_pat \
                      -files $files -filename 1} matches]
  }

  if {$err} {
    debug "ERROR searching for [pref get gdb/search/last_symbol]: $matches"
    _thaw_me
    return
  }

  $itk_component(func_box) delete 0 end

  set i -1
  catch {unset index_to_file}

  foreach func [lsort -command "list_element_strcmp 0" $matches] {
    $itk_component(func_box) insert end [lindex $func 0]
    set index_to_file([incr i]) [lindex $func 1]
  }
  _thaw_me
}

# ------------------------------------------------------------------
#  METHOD:  _toggle_more
#           Toggle display of source listing
# ------------------------------------------------------------------   
body BrowserWin::_toggle_more {{in_constructor 0}} {

  debug "Running toggle_more with MoreVisible: $MoreVisible"
  # Temporarily disable the resize bindings before opening the window.
  _bind_toplevel 0

  set topHeight [winfo height $_top]
  set topWidth  [winfo width $_top]

  if {!$MoreVisible} {

    $itk_component(view_label) configure -text {Hide Source}
    $itk_component(view_more) configure -image _LESS_
    grid $itk_component(view_hidden) -row 3 -column 0 -sticky nsew \
      -padx 6 -pady 4
    
    # Check the stored height.  Restore the view to this if it will fit on the
    # screen.  Otherwise, figure out how big to make it...

    set height [pref get gdb/browser/view_height]
    set bottom [expr {[winfo y $_top] + $topHeight}]

    set extra [expr {[winfo screenheight $_top] - $bottom - 20}]
    
    if {$height < 0} {
      set default [winfo pixels $_top 3i]
      set height [expr {$extra > $default ? $default : $extra}]
    } else {
      set height [expr {$extra > $height ? $height : $extra}]
    }

    wm geometry $_top ${topWidth}x[expr {$topHeight + $height}]
    grid rowconfigure $itk_component(hull) $componentToRow(view_hidden) \
      -weight 1
    grid rowconfigure $itk_component(hull) $componentToRow(browser) -weight 0

    pref set gdb/browser/view_height $height

    set MoreVisible 1
    update idletasks

    # If we have a selected function, display it in the window

    set f [$itk_component(func_box) getcurselection]

    if {$f != ""} {
      # FIXME - If there is more than 1 function selected, I just load the
      # first.  It would probably be better to load the one nearest to the
      # middle of the current window on the listbox.  But I am running out
      # of time for this round...

      if {[llength $f] > 1} {
        set f [lindex $f 0]
      }
      
      _fill_source $f
    } else {
      # If no function was chosen, try the file box...

      set f [$itk_component(file_box) getcurselection]
      if { $f != "" } {
        if {[llength $f] > 1} {
          set f [lindex $f 0]
        }
        _fill_source $f 0
      }
    }
  } else {
    if {!$in_constructor} {
      pref set gdb/browser/view_height \
        [winfo height $itk_component(view_hidden)]
    }

    $itk_component(view_label) configure -text {View Source}
    $itk_component(view_more) configure -image _MORE_

    grid propagate $itk_component(func_box) 0
    grid propagate $itk_component(file_box) 0

    set newTopHeight [expr {$topHeight - \
                              [winfo height $itk_component(view_hidden)]}]
    wm geometry $_top ${topWidth}x$newTopHeight

    if {!$in_constructor} {
      grid rowconfigure $itk_component(hull) $componentToRow(browser) -weight 1
      grid forget $itk_component(view_hidden)
      grid rowconfigure $itk_component(hull) $componentToRow(view_hidden) \
        -minsize 0 -weight 0
    }

    set MoreVisible 0

    # Flush the changes

    update idletasks

    grid propagate $itk_component(func_box) 1
    grid propagate $itk_component(file_box) 1

  }

  # restore the bindings

  _bind_toplevel 1

}

# ------------------------------------------------------------------
#  METHOD:  _bind_toplevel
#            Setup the bindings for the toplevel.
# ------------------------------------------------------------------
body BrowserWin::_bind_toplevel {install} {

  set bindings [bindtags $_top]
  if {$install} {
    bindtags $_top [linsert $bindings 0 Configure_Browser_$this]
  } else {
    set bindLoc [lsearch $bindings Configure_Browser_$this]
    bindtags $_top [lreplace $bindings $bindLoc $bindLoc]
  }
}

# ------------------------------------------------------------------
#  METHOD:  _do_resize
#            Does the actual work of the resize.
# ------------------------------------------------------------------
body BrowserWin::_do_resize {} {

  update idletasks
  debug "Running _do_resize"

  set width [winfo width $itk_component(hull)]
  pref set gdb/browser/width      $width
  grid columnconfigure $itk_component(hull) 0 -minsize $width

  if {$MoreVisible} {
    set v_height [winfo height $itk_component(view_hidden)]
    pref set gdb/browser/view_height $v_height
    grid rowconfigure $itk_component(hull) $componentToRow(view_hidden) \
      -minsize $v_height
    grid rowconfigure $itk_component(hull) $componentToRow(browser)
  } else {    
    set b_height [winfo height $itk_component(browser)]
    pref set gdb/browser/top_height $b_height
    grid rowconfigure $itk_component(hull) $componentToRow(browser) \
      -minsize $b_height
  }

  eval $labelUpdateCode
  pack propagate $_top 1

  set resize_after ""

}

# ------------------------------------------------------------------
#  METHOD:  _resize
#            Resize "itk_component(view_hidden)" after all configure events
# ------------------------------------------------------------------
body BrowserWin::_resize {} {

  pack propagate $_top 0

  if {$MoreVisible} {
    grid rowconfigure $itk_component(hull) $componentToRow(view_hidden) \
      -minsize 0
  } else {
    grid rowconfigure $itk_component(hull) 1 -minsize 0
  }

  grid columnconfigure $itk_component(hull) 0 -minsize 0

  if {$resize_after != ""} {
    after cancel $resize_after
  }
  set resize_after [after 100 "[code $this _do_resize]"]

}

# ------------------------------------------------------------------
#  METHOD:  _process_file_selection
#            This fills the func combo, and the more window if it
#            is currently open with the hit in the File combobox.
# ------------------------------------------------------------------
body BrowserWin::_process_file_selection {y} {

  set curIndex [$itk_component(file_box) nearest $y]
  set curSelection [$itk_component(file_box) curselection]

  # We got a button-release - First make sure the click selected the item...

  if {[lsearch $curIndex $curSelection] >= 0} {
    _fill_source [$itk_component(file_box) get $curIndex] 0
  } else {
    # If the item was deselected, go back to the first one in the list...
    # It would be better to keep a stack of the clicked items, and go to the
    # last one on the stack.  But in extended mode, this is tricky.  FIXME

    if {[llength $curSelection] > 0} {
      _fill_source [$itk_component(file_box) get [lindex $curSelection 0]] 0
    } else {
      _fill_source ""
    }
  }

  search

}

# ------------------------------------------------------------------
#  METHOD:  _process_func_selection
#            This points the  more window to the hit in the Func combobox
#            if it is currently open.
# ------------------------------------------------------------------
body BrowserWin::_process_func_selection {y} {

  set curIndex [$itk_component(func_box) nearest $y]
  set curSelection [$itk_component(func_box) curselection]

  # We got a button-release - First make sure the click selected the item...

  if {[lsearch $curIndex $curSelection] >= 0} {
    set funcName [$itk_component(func_box) get $curIndex]
    set fileName $index_to_file($curIndex)
    _fill_source $funcName 1 $fileName
  }

}

# ------------------------------------------------------------------
#  METHOD:  do_all_bp
#           Toggle a bp at every selected function in FuncLB
# ------------------------------------------------------------------
body BrowserWin::do_all_bp {onp} {

  set funcs [$itk_component(func_box) getcurselection]
  _freeze_me

  foreach f $funcs {
    if {[catch {gdb_loc $f} linespec]} {
      dbug W "Could not gdb_loc \"$f\""
      return
    }
    set bpnum [bp_exists $linespec]
    if {$bpnum == -1 && $onp} {

      # FIXME: gdb_set_bp is the preferred method, but it requires
      # a file and line number. This doesn't work very well for
      # templates...
      gdb_cmd "break $f"
    } elseif {!$onp} {
      catch {gdb_cmd "delete $bpnum"}
    }
  }
  _thaw_me
}

# ------------------------------------------------------------------
#  METHOD:  _toggle_bp
#           Toggle bp at function specified by the given Y
#           coordinate in the listbox
# ------------------------------------------------------------------
body BrowserWin::_toggle_bp {y} {

  set f [$itk_component(func_box) get [$itk_component(func_box) nearest $y]]
  if {$f != ""} {
    if {[catch {gdb_loc $f} linespec]} {
      return
    }
    set bpnum [bp_exists $linespec]
    if {$bpnum == -1} { 
      # FIXME: gdb_set_bp is the preferred method, but it requires
      # a file and line number. This doesn't work very well for
      # templates...
      gdb_cmd "break $f"
    } else {
      catch {gdb_cmd "delete $bpnum"}
    }
  }
}

# ------------------------------------------------------------------  
#  METHOD:  _select
#           (Un/Highlight all files in the files list
# ------------------------------------------------------------------  
body BrowserWin::_select {highlight} {
  if {$highlight} {
    $itk_component(file_box) selection set 0 end
  } else {
    $itk_component(file_box) selection clear 0 end
  }
  search
}

# ------------------------------------------------------------------  
#  METHOD:  _set_filter_mode
#           React to changes in the filter mode
# ------------------------------------------------------------------  
body BrowserWin::_set_filter_mode {w mode} {
  if {[string compare $mode $cur_filter_mode] != 0} {
    set cur_filter_mode $mode
    pref set gdb/search/filter_mode $mode
    search
  }
}

# ------------------------------------------------------------------
#  METHOD:  _file_hide_h
#           Run when the "Hide .h files" preference is chosen.
# ------------------------------------------------------------------
body BrowserWin::_file_hide_h {} {

  _fill_file_box
  search

}

# ------------------------------------------------------------------
#  METHOD:  _fill_source
#           Helper function to fill the srctextwin
#           when needed.
# ------------------------------------------------------------------
body BrowserWin::_fill_source {f {funcp 1} {filename ""}} {

  if {!$MoreVisible } {
    return
  }

  if {($funcp && [string compare $f $Current(function)]) \
        || [string compare $f $Current(filename)]} {
    if {!$funcp} {
      if {$filename == ""} {
        set f $f:1
      } else {
        set f $f:$filename
      }
    }

    if {[catch {gdb_loc $f} linespec]} {
      return
    }

    lassign $linespec foo funcname name line addr pc_addr lib
    set file_changed [string compare $Current(filename) $name]
    # fill srctextwin

    if {$file_changed} {
      # Set the file name label:
      $itk_component(view_name) configure -text $name:
      _freeze_me
    }

    $itk_component(view_src) location BROWSE_TAG $name $funcname \
      $line $addr $pc_addr lib

    if {$file_changed} {
      _thaw_me
    }

    set Current(function) $funcname
    # fill func combo
    if {$file_changed} {
      set Current(filename) $name
      _fill_funcs_combo $name
    }
    # Set current function in combo box
    $itk_component(view_func) entryset $f
    
  }
}

# ------------------------------------------------------------------
#  METHOD:  mode
#           Function called by srctextwin when the display
#           mode changes
# ------------------------------------------------------------------
body BrowserWin::mode {w {mode ""} {go 1}} {
  if {$mode != ""} {
    $itk_component(view_src) mode_set $mode $go
    $itk_component(view_mode) entryset $mode
  }
}

# ------------------------------------------------------------------
# METHOD:  _goto_func
#          Callback for the function combo box which
#          sets the srctextwin looking at the given function (VAL)
# ------------------------------------------------------------------
body BrowserWin::_goto_func {w {val ""}} {
  if {$val != ""} {
    set mang 0
    if {[info exists _mangled_func($val)]} {
      set mang $_mangled_func($val)
    }
    if {$mang} {
      set loc $val
    } else {
      set fn [lindex [::file split $Current(filename)] end]
      set loc $fn:$val
    }
    debug "GOTO \"$loc\""
    if {![catch {gdb_loc $loc} result]} {
      lassign $result foo funcname name line addr pc_addr lib
      $itk_component(view_src) location BROWSE_TAG $name $funcname \
        $line $addr $pc_addr lib
    } else {
      dbug W "gdb_loc returned \"$result\""
    }
  }
}
# ------------------------------------------------------------------
#  METHOD:  _fill_file_box
#           This private method fills the file listbox
# ------------------------------------------------------------------
body BrowserWin::_fill_file_box {} {
  # It would be cool if gdb_listfiles took a regexp to match,
  # but it doesn't...

  $itk_component(file_box) clear
  set allFiles [gdb_listfiles]

  if {[pref get gdb/browser/hide_h]} {
    foreach file $allFiles {
      if {[string compare [file extension $file] ".h"]} {
        $itk_component(file_box) insert end $file
      }
    }
  } else {
    foreach file $allFiles {
      $itk_component(file_box) insert end $file
    } 
  }
  search
}
# ------------------------------------------------------------------
#  METHOD:  _fill_funcs_combo
#           This private method fills the functions combo box
#           with all the functions in NAME.
# ------------------------------------------------------------------
body BrowserWin::_fill_funcs_combo {name} {

  $itk_component(view_func) list delete 0 end
  if {$name != ""} {
    set maxlen 10
    if {[catch {gdb_listfuncs $name} listfuncs]} {
      tk_messageBox -icon error -default ok \
        -title "GDB" -type ok -modal system \
        -message "This file can not be found or does not contain\ndebugging information."
      return
    }
    foreach f $listfuncs {
      lassign $f func mang
      if {$func == "global constructors keyed to main"} {continue}
      set _mangled_func($func) $mang
      $itk_component(view_func) list insert end $func
      if {[string length $func] > $maxlen} {
        set maxlen [string length $func]
      }
    }
    $itk_component(view_func) configure -width [expr {$maxlen + 1}]
  }
}