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CircleMeter: redraw regions more optimized - 2

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This commit is contained in:
Louis-Joseph Fournier 2016-01-01 10:03:04 +01:00
parent eb50cf9b08
commit c62a3a24a5
1 changed files with 8 additions and 4 deletions
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12
qml/CircleMeter.qml
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@ -81,6 +81,7 @@ Item {
if (level <= l2) return [i, l1, l2] if (level <= l2) return [i, l1, l2]
l1 = l2 l1 = l2
} }
return [0,0,0]
} }
/// Ellipse /// Ellipse
@ -146,7 +147,7 @@ Item {
Canvas { Canvas {
/// region colors /// region colors
id: regions id: regions
property int i_drawed: -1 property variant reg_drawed
anchors.fill: parent anchors.fill: parent
property variant reg: find_region() property variant reg: find_region()
z: -4 z: -4
@ -155,7 +156,6 @@ Item {
ctx.clearRect(0,0,width,height) ctx.clearRect(0,0,width,height)
//var reg = find_region() //var reg = find_region()
i_drawed = reg[0]
var a1 = angle(reg[1]) var a1 = angle(reg[1])
var a2 = angle(reg[2]) var a2 = angle(reg[2])
ctx.fillStyle = region_color[reg[0]] ctx.fillStyle = region_color[reg[0]]
@ -165,11 +165,15 @@ Item {
arc_part(ctx, r_circle_max, a2, a1) arc_part(ctx, r_circle_max, a2, a1)
ctx.lineTo(getx(a1, r_circle_min), gety(a1, r_circle_min)) ctx.lineTo(getx(a1, r_circle_min), gety(a1, r_circle_min))
ctx.fill() ctx.fill()
reg_drawed = reg
console.log("redraw")
} }
function update_level() { function update_level() {
reg = find_region() if (!reg_drawed || level > reg_drawed[2] || level < reg_drawed[1]) {
if (reg[0] != i_drawed) requestPaint() reg = find_region()
requestPaint()
}
} }
} }