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why doesn't it draw PathLine ??



  • file .pro

    QT += qml quick
    CONFIG += c++11
    
    # The following define makes your compiler emit warnings if you use
    # any feature of Qt which as been marked deprecated (the exact warnings
    # depend on your compiler). Please consult the documentation of the
    # deprecated API in order to know how to port your code away from it.
    DEFINES += QT_DEPRECATED_WARNINGS
    
    # You can also make your code fail to compile if you use deprecated APIs.
    # In order to do so, uncomment the following line.
    # You can also select to disable deprecated APIs only up to a certain version of Qt.
    #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
    
    SOURCES += \
            main.cpp
    
    RESOURCES += qml.qrc
    
    # Additional import path used to resolve QML modules in Qt Creator's code model
    QML_IMPORT_PATH =
    
    # Additional import path used to resolve QML modules just for Qt Quick Designer
    QML_DESIGNER_IMPORT_PATH =
    
    # Default rules for deployment.
    qnx: target.path = /tmp/$${TARGET}/bin
    else: unix:!android: target.path = /opt/$${TARGET}/bin
    !isEmpty(target.path): INSTALLS += target
    

    file .cpp

    import QtQuick 2.11
    import QtQuick.Window 2.11
    
    Window {
        visible: true
        width: 640
        height: 480
        title: qsTr("Редактор персонажей")
    
        Path {
            // color: "red"; // why not work :( 
            startX: 0; startY: 100
            PathLine { x: 640; y: 480 }
        }
    }
    

    Screenshot_20211202_161527.png



  • If I understood correctly, you want to draw a red line.
    The purpose of Path is to position elements through a path. Think of a row or a column that's not straight. You can understand better if you run the first example from this tutorial.

    To draw paths you need Shape.

    import QtQuick 2.15
    import QtQuick.Window 2.15
    import QtQuick.Shapes 1.12
    
    Window {
        width: 640
        height: 480
        visible: true
        title: qsTr("Редактор персонажей")
    
        Shape {
            ShapePath {
                strokeColor: "red"; // it works :)
                startX: 0; startY: 100
                PathLine { x: 640; y: 480 }
            }
        }
    }