Usage inside CMake Qt project

[igor-krawczuk]

Hi,this is probably related #55 , although to be honest I didn't understand how to solve my problem from reading the thread (i.e. how to deploy as a plugin).

Is there any place I can check in order to get QuickQanava integrated into a CMakeLists.txt qt project? I currently use the following lines in my CmakeLists.txt

include_directories("/usr/local/include/quickqanava")
include_directories("/usr/local/include/quickcontainers")
add_library(QuickQanava STATIC IMPORTED)
set_target_properties(QuickQanava PROPERTIES IMPORTED_LOCATION "/usr/local/lib/libQuickQanava.a")
add_library(QuickContainers STATIC IMPORTED)
set_target_properties(QuickContainers PROPERTIES IMPORTED_LOCATION "/usr/local/lib/libQuickContainers.a")

And then the example from the docs

import QtQuick 2.0
import QuickQanava 2.0 as Qan
//import "qrc:/QuickQanava" as Qan

Item {
    anchors.fill: parent
    //Image{
    //    anchors.fill: parent
    //    source: "./dummy_graph.png"
    //}
    Qan.Graph {
        id: graph
        anchors.fill: parent
        Component.onCompleted: {
            var n1 = graph.insertNode()
            n1.label = "Hello World"
        }
    }

}

but I get the following error (sample always the same cause):

)
qan::Graph::createFromComponent():  (qrc:/QuickQanava/VisualConnector.qml:30:1: module ":.QuickQanava" plugin "quickqanavaplugin" not found)
Component error:  (qrc:/QuickQanava/Node.qml:39:1: module ":.QuickQanava" plugin "quickqanavaplugin" not found)

If I understand #55 correctly I need to deploy as a plugin and do dynamic linking? Is there anywhere I can look to figure out how to do it?

[igor-krawczuk]

Small update: I have changed the CMakeLists.txt entry to

find_package(QuickQanava  REQUIRED)
target_link_libraries(${PROJECT_NAME} PRIVATE QuickQanava )

and have verified that make install placed the qmldir in the correct folder. I still get errors ala

qan::Graph::createComponent(): Error while creating component from URL  "qrc:/QuickQanava/SelectionItem.qml"
	QML Component status= QQmlComponent::Error
	QML Component errors= (file::/QuickQanava/qmldir: module ":.QuickQanava" plugin "quickqanavaplugin" not found)

as well as the following trace (excerpted) using QML_IMPORT_TRACE=1 and QT_DEBUG_PLUGINS=1

QQmlImports(qrc:/QuickQanava/Group.qml)::addLibraryImport: "QuickQanava" 2.0 as "Qan"
QQmlImports(qrc:/QuickQanava/Group.qml)::importExtension: loaded "/usr/lib/qt/qml/QuickQanava/qmldir"
QQmlImports(qrc:/QuickQanava/Group.qml)::addFileImport: "qrc:/QuickQanava" -1.-1 as "Qan"
QQmlImports(qrc:/QuickQanava/Group.qml)::importExtension: loaded ":/QuickQanava/qmldir"
QQmlImportDatabase::resolvePlugin: Could not resolve plugin "quickqanavaplugin" in ":/QuickQanava"
qan::Graph::createComponent(): Error while creating component from URL  "qrc:/QuickQanava/Group.qml"
	QML Component status= QQmlComponent::Error
	QML Component errors= (qrc:/QuickQanava/Group.qml:40:1: module ":.QuickQanava" plugin "quickqanavaplugin" not found)

QQmlImports(qrc:/QuickQanava/Edge.qml)::addLibraryImport: "QuickQanava" 2.0 as "Qan"
QQmlImports(qrc:/QuickQanava/Edge.qml)::importExtension: loaded "/usr/lib/qt/qml/QuickQanava/qmldir"
QQmlImports(qrc:/QuickQanava/Edge.qml)::addFileImport: "qrc:/QuickQanava" -1.-1 as "Qan"
QQmlImports(qrc:/QuickQanava/Edge.qml)::importExtension: loaded ":/QuickQanava/qmldir"
QQmlImportDatabase::resolvePlugin: Could not resolve plugin "quickqanavaplugin" in ":/QuickQanava"
qan::Graph::createComponent(): Error while creating component from URL  "qrc:/QuickQanava/Edge.qml"
	QML Component status= QQmlComponent::Error
	QML Component errors= (qrc:/QuickQanava/Edge.qml:39:1: module ":.QuickQanava" plugin "quickqanavaplugin" not found)
QQmlImports(qrc:/QuickQanava/SelectionItem.qml)::addLibraryImport: "QtQuick" 2.7 as ""
QQmlImports(qrc:/QuickQanava/SelectionItem.qml)::importExtension: loaded "/usr/lib/qt/qml/QtQuick.2/qmldir"
QQmlImports(qrc:/QuickQanava/SelectionItem.qml)::resolveType: "NumberAnimation" => "QQuickNumberAnimation" TYPE
QQmlImports(qrc:/QuickQanava/SelectionItem.qml)::resolveType: "Rectangle" => "QQuickRectangle" TYPE
QQmlImports(qrc:/QuickQanava/SelectionItem.qml)::resolveType: "ParallelAnimation" => "QQuickParallelAnimation" TYPE
QQmlImports(qrc:/QuickQanava/SelectionItem.qml)::resolveType: "SequentialAnimation" => "QQuickSequentialAnimation" TYPE
QQmlImports(qrc:/QuickQanava/SelectionItem.qml)::resolveType: "Transition" => "QQuickTransition" TYPE
QQmlImports(qrc:/QuickQanava/SelectionItem.qml)::resolveType: "PropertyChanges" => "QQuickPropertyChanges" TYPE
QQmlImports(qrc:/QuickQanava/SelectionItem.qml)::resolveType: "ScriptAction" => "QQuickScriptAction" TYPE
QQmlImports(qrc:/QuickQanava/SelectionItem.qml)::resolveType: "State" => "QQuickState" TYPE
QQmlImports(qrc:/QuickQanava/SelectionItem.qml)::addImplicitImport
QQmlImports(qrc:/QuickQanava/SelectionItem.qml)::importExtension: loaded ":/QuickQanava/qmldir"
QQmlImportDatabase::resolvePlugin: Could not resolve plugin "quickqanavaplugin" in ":/QuickQanava"
qan::Graph::createComponent(): Error while creating component from URL  "qrc:/QuickQanava/SelectionItem.qml"
	QML Component status= QQmlComponent::Error
	QML Component errors= (file::/QuickQanava/qmldir: module ":.QuickQanava" plugin "quickqanavaplugin" not found)
QQmlImports(qrc:/QuickQanava/Node.qml)::addLibraryImport: "QtQuick" 2.7 as ""
QQmlImports(qrc:/QuickQanava/Node.qml)::importExtension: loaded "/usr/lib/qt/qml/QtQuick.2/qmldir"
QQmlImports(qrc:/QuickQanava/Node.qml)::addLibraryImport: "QtQuick.Layouts" 1.3 as ""
QQmlImports(qrc:/QuickQanava/Node.qml)::importExtension: loaded "/usr/lib/qt/qml/QtQuick/Layouts/qmldir"
QQmlImports(qrc:/QuickQanava/Node.qml)::addLibraryImport: "QuickQanava" 2.0 as "Qan"
QQmlImports(qrc:/QuickQanava/Node.qml)::importExtension: loaded "/usr/lib/qt/qml/QuickQanava/qmldir"
QQmlImports(qrc:/QuickQanava/Node.qml)::addFileImport: "qrc:/QuickQanava" -1.-1 as "Qan"
QQmlImports(qrc:/QuickQanava/Node.qml)::importExtension: loaded ":/QuickQanava/qmldir"
QQmlImportDatabase::resolvePlugin: Could not resolve plugin "quickqanavaplugin" in ":/QuickQanava"
QQmlImports(qrc:/QuickQanava/VisualConnector.qml)::addLibraryImport: "QtQuick" 2.7 as ""
QQmlImports(qrc:/QuickQanava/VisualConnector.qml)::importExtension: loaded "/usr/lib/qt/qml/QtQuick.2/qmldir"
QQmlImports(qrc:/QuickQanava/VisualConnector.qml)::addLibraryImport: "QuickQanava" 2.0 as "Qan"
QQmlImports(qrc:/QuickQanava/VisualConnector.qml)::importExtension: loaded "/usr/lib/qt/qml/QuickQanava/qmldir"
QQmlImports(qrc:/QuickQanava/VisualConnector.qml)::addFileImport: "qrc:/QuickQanava" -1.-1 as "Qan"
QQmlImports(qrc:/QuickQanava/VisualConnector.qml)::importExtension: loaded ":/QuickQanava/qmldir"
QQmlImportDatabase::resolvePlugin: Could not resolve plugin "quickqanavaplugin" in ":/QuickQanava"
qan::Graph::createFromComponent():  (qrc:/QuickQanava/VisualConnector.qml:30:1: module ":.QuickQanava" plugin "quickqanavaplugin" not found)

[emmenlau]

I had this same error, but everything started working when I set -DQUICK_QANAVA_BUILD_STATIC_QRC=ON as a cmake option. Can you try with the latest release 2.2.0?

[emmenlau]

We tested this in combination with the PR https://github.com/cneben/QuickQanava/pull/191 that may be required (or not, I'm not sure).