#!../blt_wish -f

if [file exists ../library] {
    set blt_library ../library
}
set graph .graph

blt_bitmap define pattern1 { {4 4} {01 02 04 08} }
blt_bitmap define pattern2 { {4 4} {08 04 02 01} }
blt_bitmap define pattern3 { {2 2} {01 02 } }
blt_bitmap define pattern4 { {4 4} {0f 00 00 00} }
blt_bitmap define pattern5 { {4 4} {01 01 01 01} }
blt_bitmap define pattern6 { {2 2} {01 00 } }
blt_bitmap define pattern7 { {4 4} {0f 01 01 01} }
blt_bitmap define pattern8 { {8 8} {ff 00 ff 00 ff 00 ff 00 } }
blt_bitmap define pattern9 { {4 4} {03 03 0c 0c} }
blt_bitmap define hobbes { {25 25} {
   00 00 00 00 00 00 00 00 00 c0 03 00 78 e0 07 00 fc f8 07 00 cc 07 04 00
   0c f0 0b 00 7c 1c 06 00 38 00 00 00 e0 03 10 00 e0 41 11 00 20 40 11 00
   e0 07 10 00 e0 c1 17 00 10 e0 2f 00 20 e0 6f 00 18 e0 2f 00 20 c6 67 00
   18 84 2b 00 20 08 64 00 70 f0 13 00 80 01 08 00 00 fe 07 00 00 00 00 00
   00 00 00 00 }
}

option add *Blt_htext.Font *Times-Bold-R*14*
option add *graph.xTitle "X Axis Label"
option add *graph.yTitle "Y Axis Label"
option add *graph.title "A Simple Barchart"
option add *graph.xFont *Times-Medium-R*12*
option add *graph.elemBackground white
option add *graph.elemRelief raised

set visual [winfo screenvisual .] 
if { $visual != "staticgray" && $visual != "grayscale" } {
    option add *print.background yellow
    option add *quit.background red
}

blt_htext .header -text \
{This is an example of the blt_barchart widget.  The barchart has 
many components; x and y axis, legend, crosshairs, elements, etc.  
You can configure any component by pressing this %% 
button $blt_htext(widget).config -text button \
    -command "exec [list ../blt_wish -f ./grconf.tcl [winfo name .] $graph &]"\
    -bg green
$blt_htext(widget) append $blt_htext(widget).config
%%.

To create a postscript file "bar.ps", press the %%
button $blt_htext(widget).print -text {Print} -command {
  $graph postscript bar.ps -pagewidth 6.5i -pageheight 9i -landscape true
} 
$blt_htext(widget) append $blt_htext(widget).print
%% button.}

blt_barchart $graph  
$graph xaxis configure -rotate 90 -command FormatLabel

blt_htext .footer -text {Hit the %%
button $blt_htext(widget).quit -text quit -command {destroy .} 
$blt_htext(widget) append $blt_htext(widget).quit 
%% button when you've seen enough.%%
label $blt_htext(widget).logo -bitmap BLT
$blt_htext(widget) append $blt_htext(widget).logo -padx 20
%%}

set names { One Two Three Four Five Six Seven Eight }
if { $visual == "staticgray" || $visual == "grayscale" } {
    set fgcolors { white white white white white white white white }
    set bgcolors { black black black black black black black black }
} else {
    set fgcolors { red green blue purple orange brown cyan navy }
    set bgcolors { green blue purple orange brown cyan navy red }
}
set numColors [llength $names]

for { set i 0} { $i < $numColors } { incr i } {
    $graph element create [lindex $names $i] \
	-data { $i+1 $i+1 } \
	-fg [lindex $fgcolors $i] \
	-bg [lindex $bgcolors $i] \
	-stipple pattern[expr $i+1]  \
	-relief raised \
	-bd 2 
}

$graph element create Nine \
	-data { 9 -0.5 } \
	-fg red  \
	-relief sunken 
$graph element create Ten \
	-data { 10 2 } \
	-fg seagreen \
	-stipple hobbes \
	-background palegreen 
$graph element create Eleven \
	-data { 11 3.3 } \
	-fg blue  

pack append . \
	.header { padx 20 pady 10 }  \
	.graph {} \
	.footer { padx 20 pady 10 }
	
wm min . 0 0
bind $graph <B1-ButtonRelease> { %W crosshairs toggle }
bind $graph <ButtonPress-3> {
    set info [%W element closest %x %y]
    if { $info == "" } {
        blt_bell
    } else {
        puts stdout "$info"
    }
}
	
proc TurnOnHairs { graph } {
    bind $graph <Any-Motion> {%W crosshairs configure -position @%x,%y}
}
proc TurnOffHairs { graph } {
    bind $graph <Any-Motion> {%W crosshairs configure -position @%x,%y}
}

bind $graph <Enter> { TurnOnHairs %W }
bind $graph <Leave> { TurnOffHairs %W }

proc FormatLabel { w value } {
    # Determine the element name from the value
    set displaylist [$w element show]
    set index [expr round($value)-1]
    set name [lindex $displaylist $index]
    if { $name == "" } { 
	return $name
    }
    # Return the element label
    set info [$w element configure $name -label]
    return [lindex $info 4]
}

source features.tcl
SetActiveLegend $graph
SetClosestPoint $graph
SetZoom $graph