138 lines
3 KiB
Tcl
138 lines
3 KiB
Tcl
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# -*- mode: TCL; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
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#
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# $Id: Meter.tcl,v 1.3 2001/12/09 05:04:02 idiscovery Exp $
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#
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# Meter.tcl --
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#
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# Implements the tixMeter widget
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#
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# Copyright (c) 1993-1999 Ioi Kim Lam.
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# Copyright (c) 2000-2001 Tix Project Group.
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#
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# See the file "license.terms" for information on usage and redistribution
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# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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#
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tixWidgetClass tixMeter {
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-classname TixMeter
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-superclass tixPrimitive
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-method {
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}
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-flag {
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-foreground -text -value
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}
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-configspec {
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{-fillcolor fillColor FillColor #8080ff}
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{-foreground foreground Foreground black}
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{-text text Text ""}
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{-value value Value 0}
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}
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-default {
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{.relief sunken}
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{.borderWidth 2}
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{.width 150}
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}
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}
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proc tixMeter:InitWidgetRec {w} {
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upvar #0 $w data
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global env
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tixChainMethod $w InitWidgetRec
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}
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#----------------------------------------------------------------------
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# Construct widget
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#----------------------------------------------------------------------
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proc tixMeter:ConstructWidget {w} {
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upvar #0 $w data
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tixChainMethod $w ConstructWidget
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set data(w:canvas) [canvas $w.canvas]
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pack $data(w:canvas) -expand yes -fill both
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tixMeter:Update $w
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}
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proc tixMeter:SetBindings {w} {
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upvar #0 $w data
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tixChainMethod $w SetBindings
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}
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proc tixMeter:Update {w} {
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upvar #0 $w data
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# set the width of the canvas
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set W [expr $data(-width)-\
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([$data(w:root) cget -bd]+[$data(w:root) cget -highlightthickness]*2)]
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$data(w:canvas) config -width $W
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if {$data(-text) == ""} {
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set text [format "%d%%" [expr int($data(-value)*100)]]
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} else {
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set text $data(-text)
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}
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# (Create/Modify) the text item.
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#
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if {![info exists data(text)]} {
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set data(text) [$data(w:canvas) create text 0 0 -text $text]
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} else {
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$data(w:canvas) itemconfig $data(text) -text $text
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}
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set bbox [$data(w:canvas) bbox $data(text)]
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set itemW [expr [lindex $bbox 2]-[lindex $bbox 0]]
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set itemH [expr [lindex $bbox 3]-[lindex $bbox 1]]
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$data(w:canvas) coord $data(text) [expr $W/2] [expr $itemH/2+4]
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set H [expr $itemH + 4]
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$data(w:canvas) config -height [expr $H]
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set rectW [expr int($W*$data(-value))]
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if {![info exists data(rect)]} {
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set data(rect) [$data(w:canvas) create rectangle 0 0 $rectW 1000]
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} else {
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$data(w:canvas) coord $data(rect) 0 0 $rectW 1000
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}
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$data(w:canvas) itemconfig $data(rect) \
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-fill $data(-fillcolor) -outline $data(-fillcolor)
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$data(w:canvas) raise $data(text)
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}
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#----------------------------------------------------------------------
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# Configuration
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#----------------------------------------------------------------------
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proc tixMeter:config-value {w value} {
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upvar #0 $w data
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set data(-value) $value
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tixMeter:Update $w
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}
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proc tixMeter:config-text {w value} {
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upvar #0 $w data
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set data(-text) $value
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tixMeter:Update $w
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}
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proc tixMeter:config-fillcolor {w value} {
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upvar #0 $w data
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set data(-fillcolor) $value
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tixMeter:Update $w
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}
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