fltk/test/tree.fl

# data file for the Fltk User Interface Designer (fluid)
version 1.0400
header_name {.h}
code_name {.cxx}
decl {\#include <stdio.h>} {public global
}

decl {\#include <FL/Fl.H>} {public global
}

decl {\#include <FL/Fl_Tooltip.H>} {public global
}

decl {\#include <FL/Fl_Pixmap.H>} {public global
}

decl {\#include <FL/Fl_Group.H>} {public global
}

decl {\#include <FL/Fl_Tree.H>} {public global
}

decl {\#include <FL/fl_ask.H>} {public global
}

decl {\#include <FL/fl_message.H>} {public global
}

decl {\#include <FL/Fl_File_Chooser.H>} {public global
}

decl {\#include <FL/Fl_Preferences.H>} {public global
}

decl {\#include <FL/Fl_Color_Chooser.H>} {public global
}

decl {\#include <FL/Fl_Text_Display.H>} {public global
}

decl {int G_cb_counter = 0;} {
  comment {// Global callback event counter} private local
}

Function {reason_as_name(Fl_Tree_Reason reason)} {
  comment {Return an Fl_Tree_Reason as a text string name} return_type {const char*}
} {
  code {switch ( reason ) {
      case FL_TREE_REASON_NONE:       return("none");
      case FL_TREE_REASON_SELECTED:   return("selected");
      case FL_TREE_REASON_DESELECTED: return("deselected");
      case FL_TREE_REASON_OPENED:     return("opened");
      case FL_TREE_REASON_CLOSED:     return("closed");
      case FL_TREE_REASON_DRAGGED:    return("dragged");
      case FL_TREE_REASON_RESELECTED: return("reselected");
      default:                        return("???");
    }} {}
}

Function {Button_CB(Fl_Widget*w, void*data)} {open return_type void
} {
  code {// Each push changes height so we can test 'Item h() from widget'
//    Cycle through larger sizes until 50, then wrap to normal size.
//
//    In the case of 'ccc button', it is the child widget, so change
//    its size.
//
//    In the case of the 'D1' and 'D2' buttons, the parent's Fl_Group
//    is the child, so change the size of that instead.
//
Fl_Widget *cw = strcmp(w->label(), "ccc button")==0 ? w : w->parent();
int height = cw->h();
height += 10;
if ( height > 50 ) height = 20;
cw->resize(cw->x(), cw->y(), cw->w(), height);
tree->redraw(); // adjusted height
tty->printf("'%s' button pushed (height=%d)\\n", w->label(), height);} {}
}

Function {AssignUserIcons()} {
  comment {Assign user icons to the items} open
} {
  code {static const char *L_folder_xpm[] = {
    "11 11 3 1",
    ".  c None",
    "x  c \#d8d833",
    "@  c \#808011",
    "...........",
    ".....@@@@..",
    "....@xxxx@.",
    "@@@@@xxxx@@",
    "@xxxxxxxxx@",
    "@xxxxxxxxx@",
    "@xxxxxxxxx@",
    "@xxxxxxxxx@",
    "@xxxxxxxxx@",
    "@xxxxxxxxx@",
    "@@@@@@@@@@@"};
static Fl_Pixmap L_folder_pixmap(L_folder_xpm);

static const char *L_document_xpm[] = {
    "11 11 3 1",
    ".  c None",
    "x  c \#d8d8f8",
    "@  c \#202060",
    ".@@@@@@@@@.",
    ".@xxxxxxx@.",
    ".@xxxxxxx@.",
    ".@xxxxxxx@.",
    ".@xxxxxxx@.",
    ".@xxxxxxx@.",
    ".@xxxxxxx@.",
    ".@xxxxxxx@.",
    ".@xxxxxxx@.",
    ".@xxxxxxx@.",
    ".@@@@@@@@@."};
static Fl_Pixmap L_document_pixmap(L_document_xpm);

// Create deactivated version of document icon
static Fl_Pixmap L_folder_deicon_pixmap(L_folder_xpm); // copy
static Fl_Pixmap L_document_deicon_pixmap(L_document_xpm); // copy
static int first = 1;
if ( first ) {
    L_folder_deicon_pixmap.inactive();
    L_document_deicon_pixmap.inactive();
    first = 0;
}

// Assign user icons to tree items
for ( Fl_Tree_Item *item = tree->first(); item; item=item->next()) {
    if ( usericon_radio->value() ) {
        // Assign custom icons
        if ( item->has_children() ) {
            item->usericon(&L_folder_pixmap);
            item->userdeicon(&L_folder_deicon_pixmap);
        } else {
            item->usericon(&L_document_pixmap);
            item->userdeicon(&L_document_deicon_pixmap);
        }
    } else {
        // Don't assign custom icons
        item->usericon(0);

        item->userdeicon(0);
    }
}
tree->redraw();} {}
}

Function {RebuildTree()} {
  comment {Rebuild the 'example tree' from scratch} open
} {
  code {// REBUILD THE TREE TO MAKE CURRENT "DEFAULT" PREFS TAKE EFFECT
tree->clear();
tree->add("Aaa");
tree->add("Bbb");
tree->add("Ccc");
tree->add("Ddd");
tree->add("Bbb/child-01");
tree->add("Bbb/child-01/111");
tree->add("Bbb/child-01/222");
tree->add("Bbb/child-01/333");
tree->add("Bbb/child-02");
tree->add("Bbb/child-03");
tree->add("Bbb/child-04");

{
    static Fl_Input *in = 0;
    // Assign an FLTK input widget to one of the items with a label() of its own (STR\#2832)
    Fl_Tree_Item *i;
    if ( ( i = tree->find_item("Bbb/child-02") ) != NULL ) {
        if ( !in ) {            // only do this once at program startup
            tree->begin();
            in = new Fl_Input(1,1,100,1,"Fl_Input test");       // we control w() only
            in->labelsize(10);
            in->textsize(10);
            in->align(FL_ALIGN_RIGHT);                          // show label to the right of the widget
            in->tooltip("Fl_Input inside tree.\\n"
                        "The widget's label 'Fl_Input test' should appear to the widget's right.");
        }
        in->show();
        i->widget(in);
        tree->end();
    }
}

{
    static Fl_Button *but = 0;
    // Assign an FLTK widget to one of the items
    Fl_Tree_Item *i;
    if ( ( i = tree->find_item("Bbb/child-03") ) != NULL ) {
        if ( !but ) {           // only do this once at program startup
            tree->begin();
            but = new Fl_Button(1,1,140,1,"ccc button");     // we control w() only
            but->labelsize(10);
            but->callback(Button_CB);
            but->tooltip("Button inside tree.\\n"
                         "If 'Item h() from widget' enabled, "
                         "pressing button enlarges it.");
        }
        but->show();
        i->widget(but);
        tree->end();
    }
}
{
    // Assign an FLTK group to one of the items with widgets
    Fl_Tree_Item *i;
    const char *tipmsg = "A group of two buttons inside the tree.\\n"
                         "If 'Item h() from widget' enabled, "
                         "pressing either button enlarges the group "
                         "and both buttons together.";
    if ( ( i = tree->find_item("Bbb/child-04") ) != NULL ) {
        static Fl_Group *grp = 0;
        if ( !grp ) {           // only do this once at program startup
            tree->begin();
              grp = new Fl_Group(100,100,140,18); // build group.. tree handles position
              grp->color(FL_WHITE);
              grp->begin();
                Fl_Button *abut = new Fl_Button(grp->x()+0 ,grp->y()+2,65,15,"D1");
                abut->labelsize(10);
                abut->callback(Button_CB);
                abut->tooltip(tipmsg);
                Fl_Button *bbut = new Fl_Button(grp->x()+75,grp->y()+2,65,15,"D2");
                bbut->labelsize(10);
                bbut->callback(Button_CB);
                bbut->tooltip(tipmsg);

              grp->end();
              grp->resizable(grp);
            tree->end();
        }
        grp->show();
        i->widget(grp);
    }
}

// Add an 'Ascending' node, and create it sorted
tree->sortorder(FL_TREE_SORT_NONE);
tree->add("Ascending")->close();
tree->sortorder(FL_TREE_SORT_ASCENDING);
tree->add("Ascending/Zzz");
tree->add("Ascending/Xxx");
tree->add("Ascending/Aaa");
tree->add("Ascending/Bbb");
tree->add("Ascending/Yyy");
tree->add("Ascending/Ccc");

// Add a 'Descending' node, and create it sorted
tree->sortorder(FL_TREE_SORT_NONE);
tree->add("Descending")->close();
tree->sortorder(FL_TREE_SORT_DESCENDING);
tree->add("Descending/Zzz");
tree->add("Descending/Xxx");
tree->add("Descending/Aaa");
tree->add("Descending/Bbb");
tree->add("Descending/Yyy");
tree->add("Descending/Ccc");

// Add a long line to trigger horiz scrollbar
tree->sortorder(FL_TREE_SORT_NONE);
tree->add("Long Line")->close();
tree->add("Long Line/The quick brown fox jumped over the lazy dog. 0123456789");
tree->add("Long Line/Longer Line")->close();
tree->add("Long Line/Longer Line/The quick brown fox jumped over the lazy dog. ---------------- 0123456789");

// Add 500 items in numerical order
for ( int t=0; t<500; t++ ) {
    static char s[80];
    snprintf(s, 80, "500 Items/item %04d", t+1);
    tree->add(s);
}
tree->close("500 Items");       // close the 500 items by default

AssignUserIcons();

tree->redraw();
Fl_Group::current(0);} {}
}

Function {EditColor(Fl_Color &val)} {
  comment {Prompt the user to change the specified color} return_type Fl_Color
} {
  code {// Returns:
//     1 if color picked with new color in 'val'
//     0 if user hit 'Cancel'.
//
uchar r,g,b;

// Get the current color
Fl::get_color(val,r,g,b);

// Bring up a color chooser to edit it
int ret = fl_color_chooser("Choose Color",r,g,b);

val = fl_rgb_color(r,g,b);


return(ret);} {}
}

Function {UpdateColorChips()} {
  comment {Updates the color chips with current colors from widget} open return_type void
} {
  code {color_button->color(tree->color());
labelcolor_button->color(tree->labelcolor());
selection_color_button->color(tree->selection_color());

item_labelfgcolor_button->color(tree->item_labelfgcolor());
item_labelbgcolor_button->color(tree->item_labelbgcolor());

all_labelfgcolor_button->color(tree->item_labelfgcolor());  // use default
all_labelbgcolor_button->color(tree->item_labelbgcolor());  // use default

window->redraw();} {}
}

Function {GetTreeMarginBottom()} {
  comment {Get the current 'margin bottom' size
Handles this as an ABI feature..} open return_type int
} {
  code {return tree->marginbottom();} {}
}

Function {GetTreeWidgetMarginLeft()} {
  comment {Get the current 'margin bottom' size
Handles this as an ABI feature..} open return_type int
} {
  code {return tree->widgetmarginleft();} {}
}

Function {GetSelectedItemFGColor()} {
  comment {Return the selected item's fg color} open return_type Fl_Color
} {
  code {Fl_Tree_Item *item;
for ( item=tree->first(); item; item = tree->next(item) ) {
    if ( item->is_selected() ) {
        return(item->labelfgcolor());
    }
}
// No items selected? Use default
return(tree->item_labelfgcolor());} {}
}

Function {GetSelectedItemBGColor()} {
  comment {Return the selected item's bg color} open return_type Fl_Color
} {
  code {Fl_Tree_Item *item;
for ( item=tree->first(); item; item = tree->next(item) ) {
    if ( item->is_selected() ) {
        return(item->labelbgcolor());
    }
}
// No items selected? Use default
return(tree->item_labelbgcolor());} {}
}

Function {} {open
} {
  Fl_Window window {
    label tree open
    xywh {456 262 1045 730} type Double visible
  } {
    Fl_Group tree {
      label Tree
      user_data 1234
      callback {G_cb_counter++; // Increment callback counter whenever tree callback is invoked
Fl_Tree_Item *item = tree->callback_item();
if ( item ) {
  tty->printf("TREE CALLBACK: label='%s' userdata=%ld reason=%s, changed=%d",
          item->label(),
          (long)(fl_intptr_t)tree->user_data(),
          reason_as_name(tree->callback_reason()),
          tree->changed() ? 1 : 0);
  // More than one click? show click count
  //    Should only happen if reason==FL_TREE_REASON_RESELECTED.
  //
  if ( Fl::event_clicks() > 0 ) {
    tty->printf(", clicks=%d\\n", (Fl::event_clicks()+1));
  } else {
    tty->printf("\\n");
  }
} else {
  tty->printf("TREE CALLBACK: reason=%s, changed=%d, item=(no item -- probably multiple items were changed at once)\\n",
          reason_as_name(tree->callback_reason()),
          tree->changed() ? 1 : 0);
}
tree->clear_changed();} open
      tooltip {Test tree} xywh {15 22 320 539} box DOWN_BOX color 55 selection_color 15
      class Fl_Tree
    } {}
    Fl_Group {} {open
      xywh {350 5 681 556}
      code0 {o->resizable(0);}
    } {
      Fl_Group {} {
        label {Tree Globals}
        tooltip {These controls only affect the selected items. If no items are selected, all existing items in tree are modified.} xywh {350 23 330 389} box GTK_DOWN_BOX color 47 labelsize 12
      } {
        Fl_Value_Slider margintop_slider {
          label {margintop()}
          user_data tree
          callback {int val = (int)margintop_slider->value();
tree->margintop(val);
tree->redraw();}
          tooltip {Changes the top margin for the tree widget} xywh {505 36 155 16} type Horizontal color 46 selection_color 1 labelsize 10 align 4 textsize 9
          code0 {o->value(tree->margintop());}
          code1 {o->range(0.0, 100.0);}
          code2 {o->step(1.0);}
        }
        Fl_Value_Slider marginleft_slider {
          label {marginleft()}
          user_data tree
          callback {int val = (int)marginleft_slider->value();
tree->marginleft(val);
tree->redraw();}
          tooltip {Changes the left margin for the tree widget} xywh {505 56 155 16} type Horizontal color 46 selection_color 1 labelsize 10 align 4 textsize 9
          code0 {o->value(tree->marginleft());}
          code1 {o->range(0.0, 200.0);}
          code2 {o->step(1.0);}
        }
        Fl_Value_Slider marginbottom_slider {
          label {marginbottom()}
          user_data tree
          callback {int val = (int)marginbottom_slider->value();
tree->marginbottom(val);
tree->redraw();}
          tooltip {Changes the bottom margin for the tree
Sets how far beyond bottom of tree you can scroll} xywh {505 76 155 16} type Horizontal color 46 selection_color 1 labelsize 10 align 4 textsize 9
          code0 {o->value(GetTreeMarginBottom()); // handle ABI feature}
          code1 {o->range(0.0, 275.0);}
          code2 {o->step(1.0);}
          code3 {o->do_callback();}
        }
        Fl_Value_Slider linespacing_slider {
          label {linespacing()}
          user_data tree
          callback {int val = (int)linespacing_slider->value();
tree->linespacing(val);
tree->redraw();}
          tooltip {Changes the spacing between items in the tree} xywh {505 96 155 16} type Horizontal color 46 selection_color 1 labelsize 10 align 4 textsize 9
          code0 {o->value(tree->linespacing());}
          code1 {o->range(0.0, 100.0);}
          code2 {o->step(1.0);}
        }
        Fl_Value_Slider usericonmarginleft_slider {
          label {usericonmarginleft()}
          user_data tree
          callback {int val = (int)usericonmarginleft_slider->value();
tree->usericonmarginleft(val);
tree->redraw();}
          tooltip {Changes the left margin for the user icons (if any)} xywh {505 116 155 16} type Horizontal color 46 selection_color 1 labelsize 10 align 4 textsize 9
          code0 {o->value(tree->usericonmarginleft());}
          code1 {o->range(0.0, 100.0);}
          code2 {o->step(1.0);}
        }
        Fl_Value_Slider labelmarginleft_slider {
          label {labelmarginleft()}
          user_data tree
          callback {int val = (int)labelmarginleft_slider->value();
tree->labelmarginleft(val);
tree->redraw();}
          tooltip {Changes the left margin for the item label} xywh {505 136 155 16} type Horizontal color 46 selection_color 1 labelsize 10 align 4 textsize 9
          code0 {o->value(tree->labelmarginleft());}
          code1 {o->range(0.0, 100.0);}
          code2 {o->step(1.0);}
        }
        Fl_Value_Slider widgetmarginleft_slider {
          label {widgetmarginleft()}
          user_data tree
          callback {int val = (int)widgetmarginleft_slider->value();
tree->widgetmarginleft(val);
tree->redraw();}
          tooltip {Changes the margin to the left of child FLTK widget()
"Show label + widget" must be 'on' for this to take effect, i.e.
item_draw_mode(FL_TREE_ITEM_DRAW_LABEL_AND_WIDGET)} xywh {505 156 155 16} type Horizontal color 46 selection_color 1 labelsize 10 align 4 textsize 9
          code0 {o->value(GetTreeWidgetMarginLeft());  // handle ABI feature}
          code1 {o->range(0.0, 100.0);}
          code2 {o->step(1.0);}
          code3 {o->do_callback();}
        }
        Fl_Value_Slider openchild_marginbottom_slider {
          label {openchild_marginbottom()}
          user_data tree
          callback {int val = (int)openchild_marginbottom_slider->value();
tree->openchild_marginbottom(val);
tree->redraw();}
          tooltip {Changes the vertical space below an open child tree} xywh {505 176 155 16} type Horizontal color 46 selection_color 1 labelsize 10 align 4 textsize 9
          code0 {o->value(tree->openchild_marginbottom());}
          code1 {o->range(0.0, 100.0);}
          code2 {o->step(1.0);}
        }
        Fl_Value_Slider connectorwidth_slider {
          label {connectorwidth()}
          user_data tree
          callback {tree->connectorwidth((int)connectorwidth_slider->value());}
          tooltip {Tests Fl_Tree::connectorwidth()} xywh {505 195 155 16} type Horizontal color 46 selection_color 1 labelsize 11 align 4 textsize 9
          code0 {o->value(tree->connectorwidth());}
          code1 {o->range(1.0, 100.0);}
          code2 {o->step(1.0);}
          code3 {o->color(46); o->selection_color(FL_RED);}
        }
        Fl_Choice collapseicons_chooser {
          label {Collapse icons}
          callback {static const char *L_open_xpm[] = {
\#ifdef __APPLE__
  "11 11 3 1",
  ".    c \#fefefe",
  "\#   c \#444444",
  "@    c \#000000",
  "\#\#\#\#\#\#\#\#\#\#\#",
  "\#.........\#",
  "\#.........\#",
  "\#....@....\#",
  "\#....@....\#",
  "\#..@@@@@..\#",
  "\#....@....\#",
  "\#....@....\#",
  "\#.........\#",
  "\#.........\#",
  "\#\#\#\#\#\#\#\#\#\#\#"
\#else
    "11 11 2 1",
    ".  c None",
    "@  c \#000000",
    "...........",
    "....@......",
    "....@@.....",
    "....@@@....",
    "....@@@@...",
    "....@@@@@..",
    "....@@@@...",
    "....@@@....",
    "....@@.....",
    "....@......",
    "..........."
\#endif
    };
static Fl_Pixmap L_openpixmap(L_open_xpm);

static const char *L_close_xpm[] = {
\#ifdef __APPLE__
  "11 11 3 1",
  ".    c \#fefefe",
  "\#   c \#444444",
  "@    c \#000000",
  "\#\#\#\#\#\#\#\#\#\#\#",
  "\#.........\#",
  "\#.........\#",
  "\#.........\#",
  "\#.........\#",
  "\#..@@@@@..\#",
  "\#.........\#",
  "\#.........\#",
  "\#.........\#",
  "\#.........\#",
  "\#\#\#\#\#\#\#\#\#\#\#"
\#else
    "11 11 2 1",
    ".  c None",
    "@  c \#000000",
    "...........",
    "...........",
    "...........",
    "...........",
    ".@@@@@@@@@.",
    "..@@@@@@@..",
    "...@@@@@...",
    "....@@@....",
    ".....@.....",
    "...........",
    "..........."
\#endif
    };
static Fl_Pixmap L_closepixmap(L_close_xpm);

switch ( collapseicons_chooser->value() ) {
    case 0:
        tree->showcollapse(1);
        tree->openicon(0);
        tree->closeicon(0);
        break;
    case 1:
        tree->showcollapse(1);
        tree->openicon(&L_openpixmap);
        tree->closeicon(&L_closepixmap);
        break;
    case 2:
        tree->showcollapse(0);
        break;
}}
          tooltip {Tests Fl_Tree::openicon(), Fl_Tree::closeicon() and Fl_Tree::showcollapse().} xywh {520 221 140 21} down_box BORDER_BOX labelsize 12 textsize 11
        } {
          MenuItem {} {
            label Default
            xywh {10 10 36 21} labelsize 12
          }
          MenuItem {} {
            label Custom
            xywh {20 20 36 21} labelsize 12
          }
          MenuItem {} {
            label Off
            xywh {30 30 36 21} labelsize 12
          }
        }
        Fl_Choice connectorstyle_chooser {
          label {Line style}
          callback {// CHANGE COLLAPSESTYLE
switch ( connectorstyle_chooser->value() ) {
    case 0: tree->connectorstyle(FL_TREE_CONNECTOR_NONE);     break;
    case 1: tree->connectorstyle(FL_TREE_CONNECTOR_DOTTED);   break;
    case 2: tree->connectorstyle(FL_TREE_CONNECTOR_SOLID);    break;
}}
          tooltip {Tests Fl_Tree::connectorstyle() bit flags} xywh {520 245 140 21} down_box BORDER_BOX labelsize 12 textsize 11
          code0 {switch (tree->connectorstyle()) { case FL_TREE_CONNECTOR_NONE: connectorstyle_chooser->value(0); break; case FL_TREE_CONNECTOR_DOTTED: connectorstyle_chooser->value(1); break; case FL_TREE_CONNECTOR_SOLID: connectorstyle_chooser->value(2); break; }}
        } {
          MenuItem {} {
            label None
            xywh {40 40 36 21} labelsize 12
          }
          MenuItem {} {
            label Dotted
            xywh {20 20 36 21} labelsize 12
          }
          MenuItem {} {
            label Solid
            xywh {30 30 36 21} labelsize 12
          }
        }
        Fl_Choice selectmode_chooser {
          label {Selection Mode}
          callback {// Set selection mode
switch ( selectmode_chooser->value() ) {
    case 0:  tree->selectmode(FL_TREE_SELECT_NONE);   break;    // None
    case 1:  tree->selectmode(FL_TREE_SELECT_SINGLE); break;    // Single
    case 2:  tree->selectmode(FL_TREE_SELECT_MULTI);  break;    // Multi
    case 3:  tree->selectmode(FL_TREE_SELECT_SINGLE_DRAGGABLE);  break; // Single draggable
    default: tree->selectmode(FL_TREE_SELECT_SINGLE); break;    // Single
}}
          tooltip {Tests Fl_Tree::selectmode()
Sets how Fl_Tree handles mouse selection of tree items.
    NONE        -- Not selectable by keyboard/mouse
    SINGLE      -- Only one item at a time selectable by keyboard/mouse
    MULTI       -- Multiple items selectable
    SINGLE+DRAG -- Lets user drag items to different position in tree} xywh {520 269 140 21} down_box BORDER_BOX labelsize 12 textsize 11
          code0 {selectmode_chooser->value(2);}
          code1 {cb_selectmode_chooser(selectmode_chooser, (void*)0);}
        } {
          MenuItem {} {
            label None
            xywh {40 40 36 21} labelsize 12
          }
          MenuItem {} {
            label Single
            xywh {50 50 36 21} labelsize 12
          }
          MenuItem {} {
            label Multi
            xywh {60 60 36 21} labelsize 12
          }
          MenuItem {} {
            label {Single + drag}
            xywh {70 70 36 21} labelsize 12
          }
        }
        Fl_Choice reselectmode_chooser {
          label {Item Reselect Mode}
          callback {// Set reselection mode
switch ( reselectmode_chooser->value() ) {
    case 0: tree->item_reselect_mode(FL_TREE_SELECTABLE_ONCE);   break;
    case 1: tree->item_reselect_mode(FL_TREE_SELECTABLE_ALWAYS); break;
}}
          tooltip {Tests Fl_Tree::item_reselect_mode().
Enables 'reselect' events.
These happen when someone selects an item already selected
(mouse drags or multi-clicks)} xywh {520 293 140 21} down_box BORDER_BOX labelsize 12 textsize 11
          code0 {reselectmode_chooser->value(1);}
          code1 {reselectmode_chooser->do_callback();}
        } {
          MenuItem {} {
            label {Selectable Once}
            xywh {50 50 36 21} labelsize 12
          }
          MenuItem {} {
            label {Selectable Always}
            xywh {60 60 36 21} labelsize 12
          }
        }
        Fl_Choice whenmode_chooser {
          label When
          callback {// Set when mode
switch ( whenmode_chooser->value() ) {
  case 0:  tree->when(FL_WHEN_RELEASE);   break;
  case 1:  tree->when(FL_WHEN_CHANGED);   break;
  case 2:  tree->when(FL_WHEN_NEVER);     break;
  default: tree->when(FL_WHEN_RELEASE);   break;
}}
          tooltip {Sets when() the tree's callback is invoked} xywh {520 319 140 21} down_box BORDER_BOX labelsize 12 textsize 11
          code0 {whenmode_chooser->value(1);}
          code1 {cb_whenmode_chooser(whenmode_chooser, (void*)0);}
        } {
          MenuItem {} {
            label Changed
            xywh {50 50 36 21} labelsize 12
          }
          MenuItem {} {
            label Released
            xywh {60 60 36 21} labelsize 12
          }
          MenuItem {} {
            label Never
            xywh {70 70 36 21} labelsize 12
          }
        }
        Fl_Check_Button usericon_radio {
          label {Enable user icons?}
          user_data tree
          callback {AssignUserIcons();}
          tooltip {Tests Fl_Tree_Item::usericon()} xywh {485 351 20 16} down_box DOWN_BOX labelsize 11 align 7
          code0 {usericon_radio->value(1);}
        }
        Fl_Check_Button showroot_radio {
          label {Show root?}
          user_data tree
          callback {int onoff = showroot_radio->value();
tree->showroot(onoff);}
          tooltip {Tests tree->showroot();} xywh {485 368 20 16} down_box DOWN_BOX labelsize 11 align 7
          code0 {int onoff = tree->showroot(); showroot_radio->value(onoff);}
        }
        Fl_Check_Button visiblefocus_checkbox {
          label {Visible focus?}
          user_data tree
          callback {int onoff = visiblefocus_checkbox->value();
tree->visible_focus(onoff);}
          tooltip {Toggles the tree's visible_focus() box} xywh {485 385 20 16} down_box DOWN_BOX labelsize 11 align 7
          code0 {int onoff = tree->visible_focus(); visiblefocus_checkbox->value(onoff);}
        }
        Fl_Check_Button labelandwidget_radio {
          label {Show label + widget}
          callback {int flags = tree->item_draw_mode();
if ( labelandwidget_radio->value() )
    { flags |= FL_TREE_ITEM_DRAW_LABEL_AND_WIDGET; }
else
    { flags &= ~FL_TREE_ITEM_DRAW_LABEL_AND_WIDGET; }
tree->item_draw_mode(flags);
tree->redraw();}
          tooltip {Tests Fl_Tree::item_draw_mode(FL_TREE_ITEM_DRAW_LABEL_AND_WIDGET)
Enables both label and widget() for display.
When enabled, widget should appear to the right of the item's label.
By default, the widget() is shown in place of the item's label.} xywh {645 351 20 16} down_box DOWN_BOX labelsize 11 align 7
          code0 {labelandwidget_radio->value(0);}
          code1 {labelandwidget_radio->do_callback();}
        }
        Fl_Check_Button itemheightfromwidget_radio {
          label {Item h() from widget}
          callback {int flags = tree->item_draw_mode();
if ( itemheightfromwidget_radio->value() )
    { flags |= FL_TREE_ITEM_HEIGHT_FROM_WIDGET; }
else
    { flags &= ~FL_TREE_ITEM_HEIGHT_FROM_WIDGET; }
tree->item_draw_mode(flags);
tree->redraw();}
          tooltip {Tests Fl_Tree::item_draw_mode(FL_TREE_ITEM_HEIGHT_FROM_WIDGET)
If enabled, item's height will track the widget()'s height.
When enabled, click 'ccc button' or 'D1/D2' buttons to test.} xywh {645 368 20 16} down_box DOWN_BOX labelsize 11 align 7
          code0 {itemheightfromwidget_radio->value(0);}
          code1 {itemheightfromwidget_radio->do_callback();}
        }
        Fl_Check_Button globalvisiblefocus_checkbox {
          label {Global visible focus?}
          user_data tree
          callback {int onoff = globalvisiblefocus_checkbox->value();
Fl::visible_focus(onoff);}
          tooltip {Toggles the global Fl::visible_focus()} xywh {645 385 20 16} down_box DOWN_BOX labelsize 11 align 7
          code0 {int onoff = Fl::visible_focus(); globalvisiblefocus_checkbox->value(onoff);}
        }
      }
      Fl_Group {} {
        label {Test Operations} open
        tooltip {These controls only affect the defaults for new items that are created. These test the Fl_Tree_Prefs methods.} xywh {350 435 330 125} box GTK_DOWN_BOX color 47 labelsize 12
      } {
        Fl_Group showitem_box {
          label {show_item()
}
          xywh {370 460 70 82} box GTK_DOWN_BOX labelsize 11
        } {
          Fl_Button {} {
            label Show
            callback {Fl_Tree_Item *item = tree->next_selected_item();
tree->show_item(item);}
            tooltip {Tests show_item() with no position specified.
Makes the selected item visible IF it is off-screen.
No change made if it is not off-screen.} xywh {385 469 40 17} labelsize 11
          }
          Fl_Button {} {
            label Top
            callback {Fl_Tree_Item *item = tree->next_selected_item();
tree->show_item_top(item);}
            tooltip {Test show_item_top().
Scrolls selected item to the top of the display
(only works if scrollbar showing)
To use:
1) open '500 items'
2) select item 0010
3) Hit Top/Mid/Bot} xywh {385 486 40 16} labelsize 11
          }
          Fl_Button {} {
            label Mid
            callback {Fl_Tree_Item *item = tree->next_selected_item();
tree->show_item_middle(item);}
            tooltip {Tests show_item_middle().
Scrolls the selected item to the middle of the display
To use:
  1) open '500 items'
  2) select 'item 0010'
  3) Hit Top/Mid/Bot} xywh {385 502 40 16} labelsize 11
          }
          Fl_Button {} {
            label Bot
            callback {Fl_Tree_Item *item = tree->next_selected_item();
tree->show_item_bottom(item);}
            tooltip {Tests show_item_bottom().
Scrolls the selected item to the bottom of the display
To use:
  1) open '500 items'
  2) select 'item 0010'
  3) Hit Top/Mid/Bot} xywh {385 518 40 16} labelsize 11
          }
        }
        Fl_Button openall_button {
          label {Open All}
          callback {for ( Fl_Tree_Item *item = tree->first();
      item;
      item = tree->next(item) ) {
    if ( item->has_children() )
        item->open();
}
tree->redraw();}
          tooltip {Opens all nodes that have children} xywh {470 451 95 16} labelsize 9
        }
        Fl_Button loaddb_button {
          label {Load Database...}
          callback {const char *filename = fl_file_chooser("Select a Preferences style Database", "Preferences(*.prefs)", 0L);
if (filename) {
  tree->clear();
  Fl_Preferences prefs(filename, 0L, 0L, Fl_Preferences::C_LOCALE);
  tree->load(prefs);
  tree->redraw();
}}
          tooltip {Load the contents of an Fl_Preferences database into the tree view} xywh {470 471 95 16} labelsize 9
        }
        Fl_Button insertabove_button {
          label {Insert Above}
          callback {Fl_Tree_Item *item=tree->first();
while (item) {
    if ( item->is_selected() ) {
        tree->insert_above(item, "AaaAaa");
        tree->insert_above(item, "BbbBbb");
        tree->insert_above(item, "CccCcc");
    }
    item = item->next();
}

tree->redraw();}
          tooltip {Inserts three items above the selected items} xywh {470 491 95 16} labelsize 9
        }
        Fl_Button rebuildtree_button {
          label {Rebuild Tree}
          callback {RebuildTree();}
          tooltip {Rebuilds the tree with defaults} xywh {470 511 95 16} labelsize 9
        }
        Fl_Button showpathname_button {
          label {Show Pathname}
          callback {Fl_Tree_Item *item = tree->first_selected_item();
if ( !item ) { fl_message("No item was selected"); return; }

char pathname[256];
switch ( tree->item_pathname(pathname, sizeof(pathname), item) ) {
    case  0: fl_message("Pathname for '%s' is: \\"%s\\"", (item->label() ? item->label() : "???"), pathname); break;
    case -1: fl_message("item_pathname() returned -1 (NOT FOUND)"); break;
    case -2: fl_message("item_pathname() returned -2 (STRING TOO LONG)"); break;
}}
          tooltip {Tests Fl_Tree::item_pathname()
Show the pathname for the selected item.} xywh {470 531 95 16} labelsize 9
        }
        Fl_Button closeall_button {
          label {Close All}
          callback {for ( Fl_Tree_Item *item = tree->first();
      item;
      item = tree->next(item) ) {
    if ( !item->is_root() && item->has_children() )
        item->close();
}
tree->redraw();}
          tooltip {Closes all nodes that have children
(doesn't affect 'root')} xywh {570 451 95 16} labelsize 9
        }
        Fl_Button clearall_button {
          label {Clear All}
          callback {tree->clear();
tree->redraw();}
          tooltip {Tests Fl_Tree::clear().
Clears all items} xywh {570 471 95 16} labelsize 9
        }
        Fl_Button testcallbackflag_button {
          label {Test Callback Flag}
          callback {Fl_Tree_Item *root = tree->root();
tty->printf("--- Checking docallback off\\n");
if (!root) return;

//// "OFF" TEST

// open/close: Make sure these methods don't trigger cb
G_cb_counter = 0; tree->close(root, 0);       if ( G_cb_counter ) fl_alert("FAILED 'OFF' TEST\\n close(item) triggered cb!");
G_cb_counter = 0; tree->open(root, 0);        if ( G_cb_counter ) fl_alert("FAILED 'OFF' TEST\\n open(item) triggered cb!");
G_cb_counter = 0; tree->open_toggle(root, 0); if ( G_cb_counter ) fl_alert("FAILED 'OFF' TEST\\n open_toggle(item) triggered cb!");
G_cb_counter = 0; tree->open("ROOT", 0);      if ( G_cb_counter ) fl_alert("FAILED 'OFF' TEST\\n open(path) triggered cb!");
G_cb_counter = 0; tree->close("ROOT", 0);     if ( G_cb_counter ) fl_alert("FAILED 'OFF' TEST\\n close(path) triggered cb!");
tree->open(root,0);     // leave root open

// select/deselect: Make sure these methods don't trigger cb
G_cb_counter = 0; tree->select(root, 0);        if ( G_cb_counter ) fl_alert("FAILED 'OFF' TEST\\n select(item) triggered cb!");
G_cb_counter = 0; tree->deselect(root, 0);      if ( G_cb_counter ) fl_alert("FAILED 'OFF' TEST\\n deselect(item) triggered cb!");
G_cb_counter = 0; tree->select_toggle(root, 0); if ( G_cb_counter ) fl_alert("FAILED 'OFF' TEST\\n select_toggle(item) triggered cb!");
G_cb_counter = 0; tree->deselect("ROOT", 0);    if ( G_cb_counter ) fl_alert("FAILED 'OFF' TEST\\n deselect(path) triggered cb!");
G_cb_counter = 0; tree->select("ROOT", 0);      if ( G_cb_counter ) fl_alert("FAILED 'OFF' TEST\\n select(path) triggered cb!");
tree->deselect("ROOT"); // leave deselected

//// "ON" TEST

// open/close: Make sure these methods don't trigger cb
G_cb_counter = 0; tree->close(root, 1);       if ( !G_cb_counter ) fl_alert("FAILED 'ON' TEST\\n close(item) cb wasn't triggered!");
G_cb_counter = 0; tree->open(root, 1);        if ( !G_cb_counter ) fl_alert("FAILED 'ON' TEST\\n open(item) cb wasn't triggered!");
G_cb_counter = 0; tree->open_toggle(root, 1); if ( !G_cb_counter ) fl_alert("FAILED 'ON' TEST\\n open_toggle(item) cb wasn't triggered!");
G_cb_counter = 0; tree->open(root, 1);        if ( !G_cb_counter ) fl_alert("FAILED 'ON' TEST\\n open(item)[2] cb wasn't triggered!");
G_cb_counter = 0; tree->close(root, 1);       if ( !G_cb_counter ) fl_alert("FAILED 'ON' TEST\\n close(item)[2] cb wasn't triggered!");
G_cb_counter = 0; tree->open("ROOT", 1);      if ( !G_cb_counter ) fl_alert("FAILED 'ON' TEST\\n open(path) cb wasn't triggered!");
G_cb_counter = 0; tree->close("ROOT", 1);     if ( !G_cb_counter ) fl_alert("FAILED 'ON' TEST\\n close(path) cb wasn't triggered!");
tree->open(root,0);     // leave root open

// select/deselect: Make sure these methods don't trigger cb
G_cb_counter = 0; tree->select(root, 1);        if ( !G_cb_counter ) fl_alert("FAILED 'ON' TEST\\n select(item) cb wasn't triggered!");
G_cb_counter = 0; tree->deselect(root, 1);      if ( !G_cb_counter ) fl_alert("FAILED 'ON' TEST\\n deselect(item) cb wasn't triggered!");
G_cb_counter = 0; tree->select_toggle(root, 1); if ( !G_cb_counter ) fl_alert("FAILED 'ON' TEST\\n select_toggle(item) cb wasn't triggered!");
G_cb_counter = 0; tree->deselect("ROOT", 1);    if ( !G_cb_counter ) fl_alert("FAILED 'ON' TEST\\n deselect(path) cb wasn't triggered!");
G_cb_counter = 0; tree->select("ROOT", 1);      if ( !G_cb_counter ) fl_alert("FAILED 'ON' TEST\\n select(path) cb wasn't triggered!");
tree->deselect("ROOT"); // leave deselected

//// "default" TEST (should be same as 'on'

// open/close: Make sure these methods don't trigger cb
G_cb_counter = 0; tree->close(root);       if ( !G_cb_counter ) fl_alert("FAILED 'DEFAULT' TEST: close(item) cb wasn't triggered!");
G_cb_counter = 0; tree->open(root);        if ( !G_cb_counter ) fl_alert("FAILED 'DEFAULT' TEST: open(item) cb wasn't triggered!");
G_cb_counter = 0; tree->open_toggle(root); if ( !G_cb_counter ) fl_alert("FAILED 'DEFAULT' TEST: open_toggle(item) cb wasn't triggered!");
G_cb_counter = 0; tree->open("ROOT");      if ( !G_cb_counter ) fl_alert("FAILED 'DEFAULT' TEST: open(path) cb wasn't triggered!");
G_cb_counter = 0; tree->close("ROOT");     if ( !G_cb_counter ) fl_alert("FAILED 'DEFAULT' TEST: close(path) cb wasn't triggered!");
tree->open(root,0);     // leave root open

// select/deselect: Make sure these methods don't trigger cb
G_cb_counter = 0; tree->select(root);        if ( !G_cb_counter ) fl_alert("FAILED 'DEFAULT' TEST\\n select(item) cb wasn't triggered!");
G_cb_counter = 0; tree->deselect(root);      if ( !G_cb_counter ) fl_alert("FAILED 'DEFAULT' TEST\\n deselect(item) cb wasn't triggered!");
G_cb_counter = 0; tree->select_toggle(root); if ( !G_cb_counter ) fl_alert("FAILED 'DEFAULT' TEST\\n select_toggle(item) cb wasn't triggered!");
G_cb_counter = 0; tree->deselect("ROOT");    if ( !G_cb_counter ) fl_alert("FAILED 'DEFAULT' TEST\\n deselect(path) cb wasn't triggered!");
G_cb_counter = 0; tree->select("ROOT");      if ( !G_cb_counter ) fl_alert("FAILED 'DEFAULT' TEST\\n select(path) cb wasn't triggered!");
tree->deselect("ROOT"); // leave deselected

fl_alert("TEST COMPLETED\\n If you didn't see any error dialogs, test PASSED.");}
          tooltip {Test the 'docallback' argument can disable callbacks.} xywh {570 491 95 16} labelsize 9
        }
        Fl_Button testrootshowself_button {
          label {Root Show Self}
          callback {Fl_Tree_Item *root = tree->root();
tty->printf("--- Show Tree\\n");
if (root) root->show_self();}
          tooltip {Test the root->'show_self() method to show the entire tree on stdout} xywh {570 511 95 16} labelsize 9
        }
        Fl_Button add20k_button {
          label {Add 20,000}
          callback {static int item_id = 501;
Fl_Tree_Item *item=tree->first();
while (item) {
    if ( item->is_selected() ) {
        Fl_Tree_Item *parent = item->parent();
        if ( parent == 0 ) parent = tree->root();
        char s[80];
        for ( int i=0; i<20000; i++ ) {
            snprintf(s, 80, "Item \#%d", item_id+i);
            tree->add(parent, s);
        }
        item_id += 20000;
        break;
    }
    item = item->next();
}
tree->redraw();}
          tooltip {Adds 20,000 items to the selected item's parent} xywh {570 531 95 16} labelsize 9
        }
      }
      Fl_Group {} {
        label {Selected Items}
        tooltip {These controls only affect the selected items. If no items are selected, all existing items in tree are modified.} xywh {696 23 335 246} box GTK_DOWN_BOX color 47 labelsize 12
      } {
        Fl_Choice selected_labelfont_choice {
          label {Fl_Tree_Item::labelfont()}
          callback {// Find first item in tree
Fl_Tree_Item *item = tree->first();
if ( !item ) return;

// Get first item's font.
Fl_Font val = (Fl_Font)selected_labelfont_choice->value(); // Get font value

// Do selected items
int count = 0;
for ( item=tree->first(); item; item = tree->next(item) ) {
    if ( item->is_selected() ) {
        item->labelfont(val);
        count++;
    }
}

// No items selected? Do all..
if ( ! count ) {
    for ( item=tree->first(); item; item = tree->next(item) ) {
        item->labelfont(val);
    }
}

tree->redraw();}
          tooltip {Tests Fl_Tree_Item::labelfont();
Changes the font for the selected items's labels.
If none selected, all are changed.} xywh {863 31 140 21} down_box BORDER_BOX labelsize 11 textsize 11
          code0 {o->value((int)tree->item_labelfont());   // get tree's current font, assign to chooser}
        } {
          MenuItem {} {
            label Helvetica
            xywh {30 30 36 21} labelsize 12
          }
          MenuItem {} {
            label {Helvetica Bold}
            xywh {40 40 36 21} labelsize 12
          }
          MenuItem {} {
            label {Helvetica Italic}
            xywh {55 55 36 21} labelsize 12
          }
          MenuItem {} {
            label {Helvetica Bold Italic}
            xywh {60 60 36 21} labelsize 12
          }
          MenuItem {} {
            label Courier
            xywh {70 70 36 21} labelsize 12
          }
          MenuItem {} {
            label {Courier Bold}
            xywh {80 80 36 21} labelsize 12
          }
          MenuItem {} {
            label {Courier Italic}
            xywh {65 65 36 21} labelsize 12
          }
          MenuItem {} {
            label {Courier Bold Italic}
            xywh {70 70 36 21} labelsize 12
          }
          MenuItem {} {
            label Times
            xywh {80 80 36 21} labelsize 12
          }
          MenuItem {} {
            label {Times Bold}
            xywh {90 90 36 21} labelsize 12
          }
          MenuItem {} {
            label {Times Italic}
            xywh {75 75 36 21} labelsize 12
          }
          MenuItem {} {
            label {Times Bold Italic}
            xywh {80 80 36 21} labelsize 12
          }
          MenuItem {} {
            label Symbol
            xywh {90 90 36 21} labelsize 12
          }
          MenuItem {} {
            label Screen
            xywh {100 100 36 21} labelsize 12
          }
          MenuItem {} {
            label {Screen bold}
            xywh {85 85 36 21} labelsize 12
          }
          MenuItem {} {
            label {Zapf Dingbats}
            xywh {90 90 36 21} labelsize 12
          }
        }
        Fl_Value_Slider selected_labelsize_slider {
          label {Fl_Tree_Item::labelsize()}
          user_data tree
          callback {int size = (int)selected_labelsize_slider->value();

// DO SELECTED ITEMS
int count = 0;
Fl_Tree_Item *item;
for ( item=tree->first(); item; item = tree->next(item) ) {
    if ( item->is_selected() ) {
        item->labelsize(size);
        count++;
    }
}

// NO ITEMS SELECTED? DO ALL
if ( ! count ) {
    for ( item=tree->first(); item; item = tree->next(item) ) {
        item->labelsize(size);
    }
}

tree->redraw();}
          tooltip {Tests Fl_Tree_Item::labelsize();
Changes the font size of the selected items's labels.
If none selected, all are changed.} xywh {863 55 140 16} type Horizontal color 46 selection_color 1 labelsize 11 align 4 textsize 12
          code0 {o->value(tree->item_labelsize());}
          code1 {o->range(5.0, 200.0);}
          code2 {o->step(1.0);}
          code3 {o->color(46); o->selection_color(FL_RED);}
        }
        Fl_Button all_labelfgcolor_button {
          label {Fl_Tree_Item::labelfgcolor()}
          callback {// Get first item's color
Fl_Color val = GetSelectedItemFGColor();                // Get color of first selected item
if ( EditColor(val) == 0 ) return;                      // Let user edit color. (return if they hit 'Cancel')
all_labelfgcolor_button->color(val);                    // update modified color to button

// Do selected items
int count = 0;
Fl_Tree_Item *item;
for ( item=tree->first(); item; item = tree->next(item) ) {
    if ( item->is_selected() ) {
        item->labelfgcolor(val);
        count++;
    }
}

// No items selected? Do all..
if ( ! count ) {
    for ( item=tree->first(); item; item = tree->next(item) ) {
        item->labelfgcolor(val);
    }
}

tree->redraw();}
          tooltip {Sets the Fl_Tree_Item::labelfgcolor() for the selected items. If none selected, all are changed.} xywh {863 81 16 16} box DOWN_BOX labelsize 11 align 7
          code0 {o->color(GetSelectedItemFGColor());}
        }
        Fl_Button all_labelbgcolor_button {
          label {Fl_Tree_Item::labelbgcolor()}
          callback {// Get first item's color
Fl_Color val = GetSelectedItemBGColor();                // Get color of first selected item
if ( EditColor(val) == 0 ) return;                      // Let user edit color. (return if they hit 'Cancel')
all_labelbgcolor_button->color(val);                    // update modified color to button

// Do selected items
int count = 0;
Fl_Tree_Item *item;
for ( item=tree->first(); item; item = tree->next(item) ) {
    if ( item->is_selected() ) {
        item->labelbgcolor(val);
        count++;
    }
}

// No items selected? Do all..
if ( ! count ) {
    for ( item=tree->first(); item; item = tree->next(item) ) {
        item->labelbgcolor(val);
    }
}

tree->redraw();}
          tooltip {Sets the Fl_Tree_Item::labelbgcolor() for the selected items. If none selected, all are changed.} xywh {863 99 16 16} box DOWN_BOX labelsize 11 align 7
          code0 {o->color(GetSelectedItemBGColor());}
        }
        Fl_Light_Button deactivate_items_toggle {
          label { Deactivate Items}
          callback {int onoff = deactivate_items_toggle->value() ? 0 : 1;

Fl_Tree_Item *item;
int count = 0;
for ( item=tree->first(); item; item = tree->next(item) ) {
    if ( item->is_selected() ) {
        item->activate(onoff);
        ++count;
    }
}

if ( count == 0 ) {
    for ( item=tree->first(); item; item = tree->next(item) ) {
        item->activate(onoff);
    }
}

tree->redraw();}
          tooltip {Toggle the deactivation state of the selected items.
If none are selected, all are set.} xywh {758 134 100 16} selection_color 1 labelsize 9
        }
        Fl_Light_Button deactivate_tree_toggle {
          label { Deactivate Tree}
          callback {if ( deactivate_tree_toggle->value() )
    tree->deactivate();
else
    tree->activate();}
          tooltip {Deactivates the entire tree widget} xywh {758 154 100 16} selection_color 1 labelsize 9
        }
        Fl_Light_Button bold_toggle {
          label { Bold Font}
          callback {int face = bold_toggle->value() ? FL_HELVETICA_BOLD : FL_HELVETICA;

// DO SELECTED ITEMS
int count = 0;
Fl_Tree_Item *item;
for ( item=tree->first(); item; item = tree->next(item) ) {
    if ( item->is_selected() ) {
        item->labelfont(face);
        count++;
    }
}

// NO ITEMS SELECTED? DO ALL
if ( ! count ) {
    for ( item=tree->first(); item; item = tree->next(item) ) {
        item->labelfont(face);
    }
}

tree->redraw();}
          tooltip {Toggles bold font for selected items
If nothing selected, all are changed} xywh {758 174 100 16} selection_color 1 labelsize 9
        }
        Fl_Button showselected_button {
          label {Show Selected}
          callback {tty->printf("--- SELECTED ITEMS\\n");
for ( Fl_Tree_Item *item = tree->first_selected_item();
      item;
      item = tree->next_selected_item(item) ) {
  tty->printf("\\t%s\\n", item->label() ? item->label() : "???");
}}
          tooltip {Clears the selected items} xywh {864 134 95 16} labelsize 9
        }
        Fl_Button clearselected_button {
          label {Remove Selected}
          callback {Fl_Tree_Item *item=tree->first();
while (item) {
    if ( item->is_selected() ) {
        if ( tree->remove(item) == -1 ) break;
        item = tree->first();
    } else {
        item = item->next();
    }
}

tree->redraw();}
          tooltip {Removes the selected items} xywh {864 154 95 16} labelsize 9
        }
        Fl_Button swapselected_button {
          label {Swap Selected}
          callback {Fl_Tree_Item *item=tree->first();
Fl_Tree_Item *a = 0, *b = 0;
while (item) {
    if ( item->is_selected() ) {
             if ( !a ) a = item;
        else if ( !b ) b = item;
        else {
          fl_alert("Too many items selected. (must select only two)");
          return;
        }
    }
    item = item->next();
}
if ( !a || !b ) {
  fl_alert("Too few items selected. (you must select two)");
  return;
}
Fl_Tree_Item *pa = a->parent();
Fl_Tree_Item *pb = b->parent();
if ( pa != pb ) {
  fl_alert("The two selected items must be siblings");
  return;
}
pa->swap_children(a,b);
tree->redraw();}
          tooltip {Tests the Fl_Tree_Item::swap_children() method
Swaps two selected items (items must be siblings)} xywh {864 174 95 16} labelsize 9
        }
        Fl_Button selectall_button {
          label {Select All}
          callback {tree->select_all(0);
tree->redraw();}
          tooltip {Selects all items in the tree} xywh {714 199 95 16} labelsize 9
        }
        Fl_Button deselectall_button {
          label {Deselect All}
          callback {tree->deselect_all(0);
tree->redraw();}
          tooltip {Deselects all items in the tree} xywh {714 219 95 16} labelsize 9
        }
        Fl_Button nextselected_button {
          label {next_selected()}
          callback {tty->printf("--- TEST next_selected():\\n");
tty->printf("    // Walk down the tree (forwards)\\n");
 for ( Fl_Tree_Item *i=tree->first_selected_item(); i; i=tree->next_selected_item(i, FL_Down) ) {
     tty->printf("    Selected item: %s\\n", i->label()?i->label():"<nolabel>");
 }

tty->printf("    // Walk up the tree (backwards)\\n");
 for ( Fl_Tree_Item *i=tree->last_selected_item(); i; i=tree->next_selected_item(i, FL_Up) ) {
     tty->printf("    Selected item: %s\\n", i->label()?i->label():"<nolabel>");
 }}
          tooltip {Tests the Fl_Tree::next_selected() function} xywh {713 239 95 16} labelsize 9
        }
        Fl_Light_Button bbbselect_toggle {
          label { Select Bbb}
          callback {// Toggle select of just the Bbb item (not children)
Fl_Tree_Item *bbb = tree->find_item("/Bbb");
if ( !bbb) {
  fl_alert("FAIL: Couldn't find item '/Bbb'???");
  return;
}
int onoff = bbbselect_toggle->value();
if ( onoff ) tree->select(bbb);         // select /Bbb
else         tree->deselect(bbb);       // deselect /Bbb}
          tooltip {Toggle selection of just the /Bbb item
(Not children)} xywh {814 199 95 16} selection_color 1 labelsize 9
        }
        Fl_Light_Button bbbselect2_toggle {
          label { Select Bbb+}
          callback {// Toggle select of just the Bbb item and its immediate children
Fl_Tree_Item *bbb = tree->find_item("/Bbb");
if ( !bbb) {
  fl_alert("FAIL: Couldn't find item '/Bbb'???");
  return;
}
int onoff = bbbselect2_toggle->value();
if ( onoff ) tree->select_all(bbb);             // select /Bbb and its children
else         tree->deselect_all(bbb);   // deselect /Bbb and its children}
          tooltip {Toggle selection of the /Bbb item and its children} xywh {814 219 95 16} selection_color 1 labelsize 9
        }
        Fl_Light_Button bbbchild02select_toggle {
          label { Toggle child-02}
          callback {// Toggle select of just the /Bbb/child-02 item
const char *pathname = "/Bbb/child-02";
int onoff = bbbchild02select_toggle->value();
int err = 0;
if ( onoff ) err = tree->select(pathname);
else         err = tree->deselect(pathname);

if ( err == -1 ) {
  fl_alert("FAIL: Couldn't find item '%s'",pathname);
  return;
}}
          tooltip {Toggle the single item "/Bbb/child-02" using the item's "pathname".} xywh {814 239 95 16} selection_color 1 labelsize 9
        }
        Fl_Light_Button rootselect_toggle {
          label {Select ROOT}
          callback {// Toggle select of ROOT item and its children
Fl_Tree_Item *item = tree->find_item("/ROOT");
if ( !item) {
  fl_alert("FAIL: Couldn't find item '/ROOT'???");
  return;
}
int onoff = rootselect_toggle->value();
if ( onoff ) tree->select(item);        // select /ROOT and its children
else         tree->deselect(item);      // deselect /ROOT and its children}
          tooltip {Toggle selection of the ROOT item} xywh {914 199 100 16} selection_color 1 labelsize 9
        }
        Fl_Light_Button rootselect2_toggle {
          label {Select ROOT+}
          callback {// Toggle select of ROOT item and its children
Fl_Tree_Item *item = tree->find_item("/ROOT");
if ( !item) {
  fl_alert("FAIL: Couldn't find item '/ROOT'???");
  return;
}
int onoff = rootselect2_toggle->value();
if ( onoff ) tree->select_all(item);    // select /ROOT and its children
else         tree->deselect_all(item);  // deselect /ROOT and its children}
          tooltip {Toggle selection of the ROOT item and all children} xywh {914 219 100 16} selection_color 1 labelsize 9
        }
      }
      Fl_Group {} {
        label {Tree Fonts + Colors}
        tooltip {These controls only affect the selected items. If no items are selected, all existing items in tree are modified.} xywh {695 298 335 186} box GTK_DOWN_BOX color 47 labelsize 12
      } {
        Fl_Choice labelfont_choice {
          label {labelfont()}
          callback {Fl_Font val = (Fl_Font)labelfont_choice->value();
tree->labelfont(val);
window->redraw();}
          tooltip {Sets the default font used for new items created. Does NOT affect existing items.} xywh {848 314 140 21} down_box BORDER_BOX labelsize 12 textsize 12
          code0 {o->value((int)tree->labelfont());   // get tree's current font, assign to chooser}
        } {
          MenuItem {} {
            label Helvetica
            xywh {35 35 36 21} labelsize 12
          }
          MenuItem {} {
            label {Helvetica Bold}
            xywh {45 45 36 21} labelsize 12
          }
          MenuItem {} {
            label {Helvetica Italic}
            xywh {60 60 36 21} labelsize 12
          }
          MenuItem {} {
            label {Helvetica Bold Italic}
            xywh {65 65 36 21} labelsize 12
          }
          MenuItem {} {
            label Courier
            xywh {75 75 36 21} labelsize 12
          }
          MenuItem {} {
            label {Courier Bold}
            xywh {85 85 36 21} labelsize 12
          }
          MenuItem {} {
            label {Courier Italic}
            xywh {70 70 36 21} labelsize 12
          }
          MenuItem {} {
            label {Courier Bold Italic}
            xywh {75 75 36 21} labelsize 12
          }
          MenuItem {} {
            label Times
            xywh {85 85 36 21} labelsize 12
          }
          MenuItem {} {
            label {Times Bold}
            xywh {95 95 36 21} labelsize 12
          }
          MenuItem {} {
            label {Times Italic}
            xywh {80 80 36 21} labelsize 12
          }
          MenuItem {} {
            label {Times Bold Italic}
            xywh {85 85 36 21} labelsize 12
          }
          MenuItem {} {
            label Symbol
            xywh {95 95 36 21} labelsize 12
          }
          MenuItem {} {
            label Screen
            xywh {105 105 36 21} labelsize 12
          }
          MenuItem {} {
            label {Screen bold}
            xywh {90 90 36 21} labelsize 12
          }
          MenuItem {} {
            label {Zapf Dingbats}
            xywh {95 95 36 21} labelsize 12
          }
        }
        Fl_Value_Slider labelsize_slider {
          label {labelsize()}
          user_data tree
          callback {tree->labelsize((int)labelsize_slider->value());
window->redraw();}
          tooltip {Sets the font size for the  tree's label().
This is also the font size that will be used to draw the items IF their size hasn't been set with Fl_Tree_Item::labelsize() or Fl_Tree::item_labelsize()} xywh {848 338 140 16} type Horizontal color 46 selection_color 1 labelsize 12 align 4 textsize 12
          code0 {o->value((int)tree->labelsize());}
          code1 {o->range(1.0, 50.0);}
          code2 {o->step(1.0);}
          code3 {o->color(46); o->selection_color(FL_RED);}
        }
        Fl_Choice item_labelfont_choice {
          label {Item_labelfont()}
          callback {Fl_Font val = (Fl_Font)item_labelfont_choice->value();
tree->item_labelfont(val);
tree->redraw();}
          tooltip {Sets the default font used for new items created.
.Also affects any items whose font has NOT specifically been set with item->labelfont().} xywh {848 358 140 21} down_box BORDER_BOX labelsize 12 textsize 12
          code0 {o->value((int)tree->item_labelfont());}
        } {
          MenuItem {} {
            label Helvetica
            xywh {25 25 36 21} labelsize 12
          }
          MenuItem {} {
            label {Helvetica Bold}
            xywh {35 35 36 21} labelsize 12
          }
          MenuItem {} {
            label {Helvetica Italic}
            xywh {50 50 36 21} labelsize 12
          }
          MenuItem {} {
            label {Helvetica Bold Italic}
            xywh {55 55 36 21} labelsize 12
          }
          MenuItem {} {
            label Courier
            xywh {65 65 36 21} labelsize 12
          }
          MenuItem {} {
            label {Courier Bold}
            xywh {75 75 36 21} labelsize 12
          }
          MenuItem {} {
            label {Courier Italic}
            xywh {60 60 36 21} labelsize 12
          }
          MenuItem {} {
            label {Courier Bold Italic}
            xywh {65 65 36 21} labelsize 12
          }
          MenuItem {} {
            label Times
            xywh {75 75 36 21} labelsize 12
          }
          MenuItem {} {
            label {Times Bold}
            xywh {85 85 36 21} labelsize 12
          }
          MenuItem {} {
            label {Times Italic}
            xywh {70 70 36 21} labelsize 12
          }
          MenuItem {} {
            label {Times Bold Italic}
            xywh {75 75 36 21} labelsize 12
          }
          MenuItem {} {
            label Symbol
            xywh {85 85 36 21} labelsize 12
          }
          MenuItem {} {
            label Screen
            xywh {95 95 36 21} labelsize 12
          }
          MenuItem {} {
            label {Screen bold}
            xywh {80 80 36 21} labelsize 12
          }
          MenuItem {} {
            label {Zapf Dingbats}
            xywh {85 85 36 21} labelsize 12
          }
        }
        Fl_Value_Slider item_labelsize_slider {
          label {item_labelsize()}
          user_data tree
          callback {tree->item_labelsize((int)item_labelsize_slider->value());
tree->redraw();}
          tooltip {Sets the default font size used for new items created.
.Also affects any items whose font size has NOT specifically been set with item->labelsize().} xywh {848 383 140 16} type Horizontal color 46 selection_color 1 labelsize 12 align 4 textsize 12
          code0 {o->value((int)tree->item_labelsize());}
          code1 {o->range(1.0, 50.0);}
          code2 {o->step(1.0);}
          code3 {o->color(46); o->selection_color(FL_RED);}
        }
        Fl_Button labelcolor_button {
          label {labelcolor()}
          callback {Fl_Color val = tree->labelcolor();
if ( EditColor(val) == 0 ) return;                      // Let user edit color. (return if they hit 'Cancel')
labelcolor_button->color(val);                          // update modified color to button
tree->labelcolor(val);
window->redraw();   // affects window (tree's label is outside tree's area)}
          tooltip {Changes Fl_Tree::labelcolor().
This affects the text color of the widget's label.} xywh {813 414 16 16} box DOWN_BOX labelsize 11 align 7
          code0 {o->color(tree->labelcolor());}
        }
        Fl_Button color_button {
          label {color()}
          callback {Fl_Color val = tree->color();
if ( EditColor(val) == 0 ) return;                      // Let user edit color. (return if they hit 'Cancel')
color_button->color(val);       // update modified color to button
tree->color(val);
UpdateColorChips();
tree->redraw();}
          tooltip {Changes Fl_Tree::color().
This affects the background color of the widget. It also affects the bg color of newly created  items *if*  Fl_Tree::item_labelbgcolor() hasn't been changed.} xywh {813 433 16 16} box DOWN_BOX labelsize 11 align 7
          code0 {o->color(tree->color());}
        }
        Fl_Button selection_color_button {
          label {selection_color()}
          callback {Fl_Color val = tree->selection_color();
if ( EditColor(val) == 0 ) return;              // Let user edit color. (return if they hit 'Cancel')
selection_color_button->color(val);             // update modified color to button
tree->selection_color(val);
tree->redraw();}
          tooltip {Sets the Fl_Tree::selection_color().
This affects the item's colors when they're selected.} xywh {813 452 16 16} box DOWN_BOX labelsize 11 align 7
          code0 {o->color(tree->selection_color());}
        }
        Fl_Button item_labelfgcolor_button {
          label {item_labelfgcolor()}
          callback {Fl_Color val = tree->item_labelfgcolor();
if ( EditColor(val) == 0 ) return;              // Let user edit color. (return if they hit 'Cancel')
tree->item_labelfgcolor(val);                   // apply modified color to tree
item_labelfgcolor_button->color(val);           // update modified color to button
tree->redraw();}
          tooltip {Sets the default label fg color for newly created  items.} xywh {973 414 16 16} box DOWN_BOX labelsize 12 align 7
          code0 {o->color(tree->item_labelfgcolor());}
        }
        Fl_Button item_labelbgcolor_button {
          label {item_labelbgcolor()}
          callback {Fl_Color val = tree->item_labelbgcolor();
if ( EditColor(val) == 0 ) return;              // Let user edit color. (return if they hit 'Cancel')
tree->item_labelbgcolor(val);                   // apply modified color to tree
item_labelbgcolor_button->color(val);           // update modified color to button
tree->redraw();}
          tooltip {Sets the default label bg color for newly created items. When set, this overrides the default behavior of using Fl_Tree::color().} xywh {973 433 16 16} box DOWN_BOX labelsize 12 align 7
          code0 {item_labelbgcolor_button->color(tree->item_labelbgcolor());}
        }
        Fl_Button x_item_labelbgcolor_button {
          label X
          callback {tree->item_labelbgcolor(0xffffffff);
UpdateColorChips();
tree->redraw();}
          tooltip {Make the bgcolor 'transparent' (0xffffffff)} xywh {993 433 16 16} labelsize 10 align 16
        }
      }
      Fl_Value_Slider tree_scrollbar_size_slider {
        label {Fl_Tree::scrollbar_size()}
        callback {tree->scrollbar_size((int)tree_scrollbar_size_slider->value());
tree->redraw();}
        tooltip {Tests Fl_Tree::scrollbar_size() effects on tree clipping.
The value is normally 0, which causes Fl_Tree to use the global Fl::scrollbar_size() instead.} xywh {835 499 180 16} type Horizontal color 46 selection_color 1 labelsize 11 align 4 textsize 9
        code0 {o->value(tree->scrollbar_size());}
        code1 {o->range(0.0, 30.0);}
        code2 {o->step(1.0);}
        code3 {o->color(46); o->selection_color(FL_RED);}
      }
      Fl_Value_Slider scrollbar_size_slider {
        label {Fl::scrollbar_size()}
        callback {Fl::scrollbar_size((int)scrollbar_size_slider->value());
tree->redraw();}
        tooltip {Tests Fl::scrollbar_size() effects on tree clipping} xywh {835 519 180 16} type Horizontal color 46 selection_color 1 labelsize 11 align 4 textsize 9
        code0 {o->value(Fl::scrollbar_size());}
        code1 {o->range(5.0, 30.0);}
        code2 {o->step(1.0);}
        code3 {o->color(46); o->selection_color(FL_RED);}
      }
      Fl_Button testsuggs_button {
        label {Test Suggestions}
        callback {const char *helpmsg =
"CHILD WIDGET SIZING TESTS\\n"
"=========================\\n"
"   1) Start program\\n"
"   2) Click the 'ccc button' and D1/D2 buttons.\\n"
"      Their sizes should not change.\\n"
"   3) Click the 'Item h() from widget' checkbox.\\n"
"   4) Click the 'ccc button' and D1/D2 buttons.\\n"
"      Their sizes should change, getting larger vertically.\\n"
"      This validates that widget's size can affect the tree.\\n"
"   5) Disable the checkbox, widgets should resize back to the\\n"
"      size of the other items.\\n"
"   6) Hit ^A to select all items\\n"
"   7) Under 'Selected Items', drag the 'Label Size' slider around.\\n"
"      All the item's height should change, as well as child widgets.\\n"
"   8) Put Label Size' slider back to normal\\n"
"\\n"
"CHILD WIDGET + LABEL ITEM DRAWING TESTS\\n"
"=======================================\\n"
"   1) Start program\\n"
"   2) Click 'Show label + widget'.\\n"
"      The widgets should all show item labels to their left.\\n"
"   3) Disable same, item labels should disappear,\\n"
"      showing the widgets in their place.\\n"
"\\n"
"COLORS\\n"
"======\\n"
"   1) Start program\\n"
"   2) Change 'Tree Fonts+Colors' -> color()\\n"
"   3) Entire tree's background color will change, including items.\\n"
"   4) Change the 'Tree Fonts + Colors -> item_labelbgcolor()'\\n"
"   6) Click the '111' item to select it.\\n"
"   7) Click 'Test Operations -> Insert Above'\\n"
"      New items should appear above the selected item using the new color.\\n"
"      This color will be different from the background color.\\n"
"   8) Change the 'Tree Fonts+Colors' -> color()\\n"
"      The entire tree's bg should change, except the new items.\\n"
"   9) Click the Tree Fonts+Colors -> item_labelbgcolor() 'X' button.\\n"
"      This resets item_labelbgcolor() to the default 'transparent' color (0xffffffff)\\n"
"  10) Again, click the 'Insert Above' button.\\n"
"      New items will be created in the background color, and changing the color()\\n"
"      should affect the new items too.\\n"
"\\n"
"SCROLLING\\n"
"=========\\n"
"   1) Open '500 items' and 'Long Line' so that both scrollbars appear:\\n"
"        * The 'focus box' for the selected item should not be clipped\\n"
"          horizontally by the vertical scrollbar.\\n"
"        * Resizing the window horizontally should resize the focus box\\n"
"        * Scrolling vertically/horizontally should show reveal all\\n"
"          edges of the tree. One *exception* is the widget label\\n"
"          to the right of the 'ccc button'; labels aren't part\\n"
"          of the widget, and therefore don't affect scroll tabs\\n"
"   2) Scroll vertical scroller to the middle of the tree\\n"
"   3) Left click and drag up/down to extend the selection:\\n"
"        * Selection should autoscroll if you drag off the top/bottom\\n"
"        * Selection should work *even* if you drag horizontally\\n"
"          off the window edge; moving up/down outside the window\\n"
"          should continue to autoscroll\\n"
"   4) Click either of the the scrollbar tabs and drag:\\n"
"        * Even if you drag off the scrollbar, the scrollbar\\n"
"          tab should continue to move\\n"
"        * Should continue to work if you drag off the window edge\\n"
"          horizontally drag off the window.\\n"
"   5) Click 'Bbb' and hit 'Add 20,000', then position the\\n"
"      'ccc button' so it's partially obscured by a scrollbar tab:\\n"
"        * Clicking the obscured button should work\\n"
"        * Clicking on the tab over the button should not 'click through'\\n"
"          to the button.\\n"
"";

static Fl_Double_Window *helpwin  = 0;
static Fl_Text_Display  *helpdisp = 0;
static Fl_Text_Buffer   *helpbuff = 0;
if ( !helpwin ) {
  Fl_Group::current(0);  // ensure we don't become child of other win
  helpwin = new Fl_Double_Window(600,600,"Test Suggestions");
  helpdisp = new Fl_Text_Display(0,0,helpwin->w(),helpwin->h());
  helpbuff = new Fl_Text_Buffer();
  helpdisp->buffer(helpbuff);
  helpdisp->textfont(FL_COURIER);
  helpdisp->textsize(12);
  helpbuff->text(helpmsg);
  helpwin->end();
}
helpwin->resizable(helpdisp);
helpwin->show();}
        tooltip {Suggestions on how to do tests} xywh {935 545 95 16} labelsize 9
      }
    }
    Fl_Box resizer_box {
      xywh {0 263 15 14}
    }
    Fl_Terminal tty {selected
      xywh {16 571 1014 149}
    }
  }
  code {// Initialize Tree
tree->root_label("ROOT");
tree->item_reselect_mode(FL_TREE_SELECTABLE_ALWAYS);
RebuildTree();
/*tree->show_self();*/} {}
  code {// FLTK stuff

//Fl::scheme("gtk+");

Fl_Tooltip::size(10);           // small font for tooltips

window->resizable(tree);
window->size_range(window->w(), window->h(), 0, 0);

     if ( tree->when() == FL_WHEN_CHANGED ) whenmode_chooser->value(0);
else if ( tree->when() == FL_WHEN_RELEASE ) whenmode_chooser->value(1);
else if ( tree->when() == FL_WHEN_NEVER   ) whenmode_chooser->value(2);} {}
}