Simple QML Progress Bar: Difference between revisions

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'''English''' [[Simple_QML_Progress_Bar_Bulgarian|Български]]
'''English''' [[Simple_QML_Progress_Bar_Bulgarian|Български]]


[[Category:Snippets]]<br />[[Category:HowTo]]<br />[[Category:Developing_with_Qt::Qt Quick]]<br />[[Category:Developing_with_Qt::Qt Quick::QML]]
[[Category:Snippets]]
[[Category:HowTo]]
[[Category:Developing_with_Qt::Qt Quick]]
[[Category:Developing_with_Qt::Qt Quick::QML]]


= Simple Progress Bar =
= Simple Progress Bar =


This very simple QML progress bar takes some inspiration form the progress bars example that ships with Qt. I have modified it to be a very plain and lightweight progress bar that is suitable for use even at very small sizes. This is what it looks like by default (with the Qt green colour ;<s>) )
This very simple QML progress bar takes some inspiration form the progress bars example that ships with Qt. I have modified it to be a very plain and lightweight progress bar that is suitable for use even at very small sizes. This is what it looks like by default (with the Qt green colour ;-) )
<br />[[Image:http://gallery.theharmers.co.uk/upload/2011/04/30/20110430152206-b395a64a.png|Simple progress bar]]
<br />This progress bar is used along with the &quot;BusyIndicator&amp;quot;:http://developer.qt.nokia.com/wiki/Busy_Indicator_for_QML in the ProgressSpinner QML component to produce a nice QML component that can show activity and progress for long operations.
<br />Implementation (SimpleProgressBar.qml):<br /><code><br />import QtQuick 1.0
<br />Item {<br /> id: progressbar
<br /> property int minimum: 0<br /> property int maximum: 100<br /> property int value: 0<br /> property color color: &quot;#77B753&amp;quot;
<br /> width: 250; height: 23<br /> clip: true
<br /> Rectangle {<br /> id: border<br /> anchors.fill: parent<br /> anchors.bottomMargin: 1<br /> anchors.rightMargin: 1<br /> color: &quot;transparent&amp;quot;<br /> border.width: 1<br /> border.color: parent.color<br /> }
<br /> Rectangle {<br /> id: highlight<br /> property int widthDest: ( ( progressbar.width * ( value</s> minimum ) ) / ( maximum - minimum ) - 4 )<br /> width: highlight.widthDest


Behavior on width {<br /> SmoothedAnimation {<br /> velocity: 1200<br /> }<br /> }
[[Image:http://gallery.theharmers.co.uk/upload/2011/04/30/20110430152206-b395a64a.png|Simple progress bar]]


anchors {<br /> left: parent.left<br /> top: parent.top<br /> bottom: parent.bottom<br /> margins: 2<br /> }<br /> color: parent.color<br /> }<br />}<br /></code>
This progress bar is used along with the "BusyIndicator":http://developer.qt.nokia.com/wiki/Busy_Indicator_for_QML in the ProgressSpinner QML component to produce a nice QML component that can show activity and progress for long operations.
 
Implementation (SimpleProgressBar.qml):
<code>
import QtQuick 1.0
 
Item {
id: progressbar
 
property int minimum: 0
property int maximum: 100
property int value: 0
property color color: "#77B753"
 
width: 250; height: 23
clip: true
 
Rectangle {
id: border
anchors.fill: parent
anchors.bottomMargin: 1
anchors.rightMargin: 1
color: "transparent"
border.width: 1
border.color: parent.color
}
 
Rectangle {
id: highlight
property int widthDest: ( ( progressbar.width * ( value- minimum ) ) / ( maximum - minimum ) - 4 )
width: highlight.widthDest
 
Behavior on width {
SmoothedAnimation {
velocity: 1200
}
}
 
anchors {
left: parent.left
top: parent.top
bottom: parent.bottom
margins: 2
}
color: parent.color
}
}
</code>


Usage:
Usage:


<code><br />import QtQuick 1.0
<code>
import QtQuick 1.0


Rectangle {<br /> id: root<br /> width: 640<br /> height: 360
Rectangle {
id: root
width: 640
height: 360


SimpleProgressBar {<br /> id: progress<br /> anchors.centerIn: progressSpinner<br /> width: 100<br /> height: 12<br /> color: progressSpinner.color<br /> value: 35<br /> }<br />}
SimpleProgressBar {
id: progress
anchors.centerIn: progressSpinner
width: 100
height: 12
color: progressSpinner.color
value: 35
}
}

Revision as of 09:33, 25 February 2015

English Български

Simple Progress Bar

This very simple QML progress bar takes some inspiration form the progress bars example that ships with Qt. I have modified it to be a very plain and lightweight progress bar that is suitable for use even at very small sizes. This is what it looks like by default (with the Qt green colour ;-) )

Simple progress bar

This progress bar is used along with the "BusyIndicator":http://developer.qt.nokia.com/wiki/Busy_Indicator_for_QML in the ProgressSpinner QML component to produce a nice QML component that can show activity and progress for long operations.

Implementation (SimpleProgressBar.qml):

import QtQuick 1.0

Item {
 id: progressbar

 property int minimum: 0
 property int maximum: 100
 property int value: 0
 property color color: "#77B753"

 width: 250; height: 23
 clip: true

 Rectangle {
 id: border
 anchors.fill: parent
 anchors.bottomMargin: 1
 anchors.rightMargin: 1
 color: "transparent"
 border.width: 1
 border.color: parent.color
 }

 Rectangle {
 id: highlight
 property int widthDest: ( ( progressbar.width * ( value- minimum ) ) / ( maximum - minimum ) - 4 )
 width: highlight.widthDest

Behavior on width {
 SmoothedAnimation {
 velocity: 1200
 }
 }

anchors {
 left: parent.left
 top: parent.top
 bottom: parent.bottom
 margins: 2
 }
 color: parent.color
 }
}

Usage:

import QtQuick 1.0

Rectangle {

id: root
width: 640
height: 360

SimpleProgressBar {

id: progress
anchors.centerIn: progressSpinner
width: 100
height: 12
color: progressSpinner.color
value: 35
}

}