QtCreator/Qlm2Puppet cannot render item with "imperative code"

[Sil20]

Hi,
I migrate my project from Qt4 Qtquick 1.0 to Qt5 Qtquick 2.0, QtDesigner 2.6.83

Then when I use the designer to edit my components, I face the following issue:

• Warnings: Imperative code is not supported in the Qt Quick Designer (M203) (Several Times)
• Warnings:this Visual property binding cannotbe evaluated in the local context and might not show up in Qt Designer as expected
• Error: Imperative code is not supported in the Qt Quick Designer (M203)

When I go to the error there is just a value affectation:
@function setDialerAngle(angle)
{
dialer_barre_up_on.rotation=angle ;
}@

If QtDesigner becomes not compatible with such a simple code it will be really become hard to use for more than just putting rectangles and static texts together.

• Is there a way around?
• Is it a bug or a feature test for the Beta version of QtDesigner?
• Will this behavior become a rule? I hope not!

[Sil20]

Additionnal information: when I put some Timer inside Items I have a message
"This type is not supported in the Qt Quick Designer (M204)"

[Sil20]

Qt5 Qtquick 2.0, QtDesigner 2.6.83
Still new informations. When rendering simple items in Qtdesigner, There are 3 Qml2Puppet.exe loaded in memory, each of them take 50Mb, which is hudge, but ignoring the warning allow me to edit the visual

When rendering "Screens" which contain several Item there are 3 Qml2Puppet.exe loaded in memory, each of them take 1 550Mb, which is incredibely hudge!

Comparing to QT4, QtQuick1, QtCreator 2.5.82 (2.6.0-beta)
The same Simple Item rendering started 3 QmlPuppet.exe, in memory, each of them take 9Mb
The same "Screens" which contain several Item there are 3 QmlPuppet.exe, in memory, each of them take only 58Mb

[sierdzio]

That seems to be a bug, please "report it":http://qt-project.org/wiki/ReportingBugsInQt.

[ThomasHartmann]

bq. If QtDesigner becomes not compatible with such a simple code it will be really become hard to use for more than just putting rectangles and static texts together.

You can ignore the warning and uncheck the checkbox then you will never get the warning again (until you enable this in options again).
We added this features to increase awareness that the designer does not "understand" imperative code.
You can always move imperative code into a component.

bq. When rendering “Screens” which contain several Item there are 3 Qml2Puppet.exe loaded in memory, each of them take 1 550Mb, which is incredibely hudge!

We are not aware of this issue. Could it be that your qml2puppet is a debug build?

I did a quick sanity check and could not reproduce this issue.

[Sil20]

Well, my Qml2Puppet.exe is a release build. But my Qml Application is pretty "heavy". Tere are:

• ~100 complexe Item
• the rendering resolution is 4x HD (4* 192x1080)
• there are Timers and multipletouche area, and SVG image files.

But it was working in QT4 Qtquick1. Of course the MultipletouchAreas were replace by TouchAreas, and few modifications were required.

[Sil20]

I now took Qtcreator 2.7.0-rc , and compiled it along with QML2Puppet.exe

It works better for small QML, but as soon as the QML becomes heavy, all 3 qml2puppet.exe processes take 1.5Gb in memmory and everythinhg froze

[Sil20]

Another thing strange:
When I remove one instance from my Main QML application file, the Qml2Puppet processes take 12Mb more in memmory distributed in the 3 qml2puppets.exe.
And when I quit Designer, the qml2puppet processe spend more than 30seconds to stop, maybe more than 1 minute.
Here the code of one of the-- component I removed :
@// import QtQuick 2.0 //
import QtQuick 2.0

Rectangle {
id: rectangle1

property string mTextTop : "Defaut"
property string mTextTopSize : "13"
property string mTextBottomLeft : "A\nDefaut"
property string mTextBottomRight : "A\nDefaut"
property string mFontFamily : "Arial Narrow"

property bool mTPLLabelBold : true
//Automatic Positionning
x:-25
y:-41    

width: 200//parent!=undefined?200/parent.scale:200;
height: width
z: parent.z -1
scale:parent!=undefined?1/parent.scale:1;

radius:width/2
border.width: 4
Component.onCompleted: {
    if(parent!=undefined )
    {
        //Scale unsensitive to parent scale
        scale=1/parent.scale;
    }
}




property int colorIndex:0
property variant __mTextColor:["black","black","white","#black","#black","#black","#black","#black","#black","black"]
property variant __bgcolor:["white","#ea6b00","#1c5112","#a3db8f","#CAD3B6","#421010","#E0E0E0","#cde4ee","#c8ecc5ad","red"]
//    0: White
//    1: ORANGE
//    2: Green
//    3: light green
//    4: paleGreen
//    5: DarkRed
//    6: DarkWhite
//    7: LightBlue
//    8: LitePink
//    9: Red

smooth: true
color: __bgcolor[colorIndex]
border.color: "#000000"
Text {
    x: 0
    y: 5
    width: parent.width
    color: __mTextColor[colorIndex]
    text: mTextTop
    style: Text.Normal
    font.pixelSize: mTextTopSize
    anchors.horizontalCenter: parent.horizontalCenter
    anchors.top: parent.top
    anchors.topMargin: 5
    anchors.horizontalCenterOffset: 0
    font.bold: mTPLLabelBold
    font.family: mFontFamily
    horizontalAlignment: Text.AlignHCenter
}

Text{
    x: 33
    anchors.bottom: parent.bottom
    anchors.bottomMargin: 28
    y: 136
    horizontalAlignment:Text.AlignLeft
    font.bold: mTPLLabelBold
    font.pixelSize: 11
    font.family: mFontFamily
    color:__mTextColor[colorIndex]
    text:mTextBottomLeft
    anchors.left: parent.left
    anchors.leftMargin: 33
}
Text{
    anchors.bottom: parent.bottom
    anchors.bottomMargin: 27
    x:parent.width/2
    y: 137
    width: 43
    horizontalAlignment:Text.AlignRight
    font.bold: mTPLLabelBold
    font.pixelSize: 11
    font.family: mFontFamily
    color:__mTextColor[colorIndex]
    text:mTextBottomRight
    anchors.right: parent.right
    anchors.rightMargin: 34
    verticalAlignment: Text.AlignTop
}

}
@

[ThomasHartmann]

Could you do a bug a bug report with a "condensed" example?
We currently do not see the issue.

Also what platform are you using?

Thank you.

[Sil20]

I added the example in the bugreport system:
"https://bugreports.qt-project.org/browse/QTCOMPONENTS-1310?focusedCommentId=197529#comment-197529":https://bugreports.qt-project.org/browse/QTCOMPONENTS-1310?focusedCommentId=197529#comment-197529

It is a simple example to produce the Issue, Few files;
In Panels directory just open the "PanelDebug2Puppet.qml" file in the designer

I am on Windows 7 64 bit Professionnal, QT5.0.1, qtcretor 2.7-rc, Qtquick2