mirror of
https://github.com/status-im/dotherside.git
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295 lines
12 KiB
Nim
295 lines
12 KiB
Nim
import NimQmlTypes
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import tables
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## NimQml aims to provide binding to the QML for the Nim programming language
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export QObject
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export QApplication
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export QVariant
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export QQmlApplicationEngine
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export QQmlContext
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type QMetaType* {.pure.} = enum ## \
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## Qt metatypes values used for specifing the
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## signals and slots argument and return types.
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##
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## This enum mimic the QMetaType::Type C++ enum
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UnknownType = cint(0),
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Bool = cint(1),
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Int = cint(2),
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QString = cint(10),
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VoidStar = cint(31),
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QVariant = cint(41),
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Void = cint(43)
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proc debugMsg(message: string) =
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echo "NimQml: ", message
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proc debugMsg(typeName: string, procName: string) =
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var message = typeName
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message &= ": "
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message &= procName
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debugMsg(message)
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proc debugMsg(typeName: string, procName: string, userMessage: string) =
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var message = typeName
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message &= ": "
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message &= procName
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message &= " "
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message &= userMessage
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debugMsg(message)
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# QVariant
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proc dos_qvariant_create(variant: var pointer) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qvariant_create_int(variant: var pointer, value: cint) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qvariant_create_bool(variant: var pointer, value: bool) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qvariant_create_string(variant: var pointer, value: cstring) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qvariant_create_qobject(variant: var pointer, value: pointer) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qvariant_delete(variant: pointer) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qvariant_isnull(variant: pointer, isNull: var bool) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qvariant_toInt(variant: pointer, value: var cint) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qvariant_toBool(variant: pointer, value: var bool) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qvariant_toString(variant: pointer, value: var cstring, length: var cint) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qvariant_setInt(variant: pointer, value: cint) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qvariant_setBool(variant: pointer, value: bool) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qvariant_setString(variant: pointer, value: cstring) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_chararray_delete(rawCString: cstring) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc create*(variant: var QVariant) =
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## Create a new QVariant
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var data: pointer
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dos_qvariant_create(data)
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variant = QVariant(data)
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proc create*(variant: var QVariant, value: cint) =
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## Create a new QVariant given a cint value
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var data: pointer
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dos_qvariant_create_int(data, value)
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variant = QVariant(data)
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proc create*(variant: var QVariant, value: bool) =
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## Create a new QVariant given a bool value
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var data: pointer
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dos_qvariant_create_bool(data, value)
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variant = QVariant(data)
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proc create*(variant: var QVariant, value: string) =
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## Create a new QVariant given a string value
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var data: pointer
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dos_qvariant_create_string(data, value)
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variant = QVariant(data)
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proc create*(variant: var QVariant, value: QObject) =
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## Create a new QVariant given a QObject
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var data: pointer
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dos_qvariant_create_qobject(data, value.data)
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variant = QVariant(data)
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proc delete*(variant: QVariant) =
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## Delete a QVariant
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debugMsg("QVariant", "delete")
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dos_qvariant_delete(pointer(variant))
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proc isNull*(variant: QVariant): bool =
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## Return true if the QVariant value is null, false otherwise
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dos_qvariant_isnull(pointer(variant), result)
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proc intVal*(variant: QVariant): int =
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## Return the QVariant value as int
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var rawValue: cint
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dos_qvariant_toInt(pointer(variant), rawValue)
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result = cast[int](rawValue)
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proc `intVal=`*(variant: QVariant, value: int) =
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## Sets the QVariant value int value
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var rawValue = cast[cint](value)
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dos_qvariant_setInt(pointer(variant), rawValue)
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proc boolVal*(variant: QVariant): bool =
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## Return the QVariant value as bool
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dos_qvariant_toBool(pointer(variant), result)
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proc `boolVal=`*(variant: QVariant, value: bool) =
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## Sets the QVariant bool value
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dos_qvariant_setBool(pointer(variant), value)
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proc stringVal*(variant: QVariant): string =
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## Return the QVariant value as string
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var rawCString: cstring
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var rawCStringLength: cint
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dos_qvariant_toString(pointer(variant), rawCString, rawCStringLength)
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result = $rawCString
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dos_chararray_delete(rawCString)
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proc `stringVal=`*(variant: QVariant, value: string) =
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## Sets the QVariant string value
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dos_qvariant_setString(pointer(variant), value)
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# QQmlApplicationEngine
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proc dos_qqmlapplicationengine_create(engine: var pointer) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qqmlapplicationengine_load(engine: pointer, filename: cstring) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qqmlapplicationengine_context(engine: pointer, context: var pointer) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qqmlapplicationengine_delete(engine: pointer) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc create*(engine: var QQmlApplicationEngine) =
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## Create an new QQmlApplicationEngine
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var temp: pointer
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dos_qqmlapplicationengine_create(temp)
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engine = QQmlApplicationEngine(temp)
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proc load*(engine: QQmlApplicationEngine, filename: cstring) =
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## Load the given Qml file
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dos_qqmlapplicationengine_load(pointer(engine), filename)
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proc rootContext*(engine: QQmlApplicationEngine): QQmlContext =
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## Return the engine root context
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var context: pointer
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dos_qqmlapplicationengine_context(pointer(engine), context)
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result = cast[QQmlContext](context)
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proc delete*(engine: QQmlApplicationEngine) =
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## Delete the given QQmlApplicationEngine
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debugMsg("QQmlApplicationEngine", "delete")
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dos_qqmlapplicationengine_delete(pointer(engine))
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# QQmlContext
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proc dos_qqmlcontext_setcontextproperty(context: pointer, propertyName: cstring, propertyValue: pointer) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc setContextProperty*(context: QQmlContext, propertyName: string, propertyValue: QVariant) =
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## Sets a new property with the given value
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dos_qqmlcontext_setcontextproperty(pointer(context), propertyName, pointer(propertyValue))
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# QApplication
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proc dos_qguiapplication_create() {.cdecl, dynlib: "libDOtherSide.so", importc.}
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proc dos_qguiapplication_exec() {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qguiapplication_delete() {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc create*(application: QApplication) =
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## Create a new QApplication
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dos_qguiapplication_create()
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proc exec*(application: QApplication) =
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## Start the Qt event loop
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dos_qguiapplication_exec()
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proc delete*(application: QApplication) =
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## Delete the given QApplication
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dos_qguiapplication_delete()
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# QObject
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type QVariantArray {.unchecked.} = array[0..0, QVariant]
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type QVariantArrayPtr = ptr QVariantArray
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proc toVariantSeq(args: QVariantArrayPtr, numArgs: cint): seq[QVariant] =
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result = @[]
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for i in 0..numArgs-1:
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result.add(args[i])
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proc toCIntSeq(metaTypes: openarray[QMetaType]): seq[cint] =
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result = @[]
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for metaType in metaTypes:
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result.add(cint(metaType))
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proc dos_qobject_create(qobject: var pointer, nimobject: pointer, qobjectCallback: pointer) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qobject_delete(qobject: pointer) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qobject_slot_create(qobject: pointer, slotName: cstring, argumentsCount: cint, argumentsMetaTypes: ptr cint, slotIndex: var cint) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qobject_signal_create(qobject: pointer, signalName: cstring, argumentsCount: cint, argumentsMetaTypes: ptr cint, signalIndex: var cint) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qobject_signal_emit(qobject: pointer, signalName: cstring, argumentsCount: cint, arguments: pointer) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qobject_property_create(qobject: pointer, propertyName: cstring, propertyType: cint, readSlot: cstring, writeSlot: cstring, notifySignal: cstring) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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method onSlotCalled*(nimobject: QObject, slotName: string, args: openarray[QVariant]) =
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## Called from the NimQml bridge when a slot is called from Qml.
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## Subclasses can override the given method for handling the slot call
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discard()
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proc qobjectCallback(nimobject: pointer, slotName: QVariant, numArguments: cint, arguments: QVariantArrayPtr) {.exportc.} =
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var nimQObjectCasted = cast[ptr QObject](nimobject)
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# forward to the QObject subtype instance
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nimQObjectCasted[].onSlotCalled(slotName.stringVal, arguments.toVariantSeq(numArguments))
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proc create*(qobject: var QObject) =
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## Create a new QObject
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qobject.name = "QObject"
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qobject.slots = initTable[string,cint]()
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qobject.signals = initTable[string, cint]()
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dos_qobject_create(qobject.data, addr(qobject), qobjectCallback)
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proc delete*(qobject: QObject) =
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## Delete the given QObject
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dos_qobject_delete(qobject.data)
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proc registerSlot*(qobject: var QObject,
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slotName: string,
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metaTypes: openarray[QMetaType]) =
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## Register a slot in the QObject with the given name and signature
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# Copy the metatypes array
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var copy = toCIntSeq(metatypes)
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var index: cint
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dos_qobject_slot_create(qobject.data, slotName, cint(copy.len), cast[ptr cint](addr(copy[0])), index)
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qobject.slots[slotName] = index
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proc registerSignal*(qobject: var QObject,
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signalName: string,
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metatypes: openarray[QMetaType]) =
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## Register a signal in the QObject with the given name and signature
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var index: cint
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if metatypes.len > 0:
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var copy = toCIntSeq(metatypes)
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dos_qobject_signal_create(qobject.data, signalName, cast[cint](copy.len), cast[ptr cint](addr(copy[0])), index)
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else:
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dos_qobject_signal_create(qobject.data, signalName, 0, cast[ptr cint](0), index)
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qobject.signals[signalName] = index
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proc registerProperty*(qobject: var QObject,
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propertyName: string,
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propertyType: QMetaType,
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readSlot: string,
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writeSlot: string,
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notifySignal: string) =
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## Register a property in the QObject with the given name and type.
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dos_qobject_property_create(qobject.data, propertyName, cast[cint](propertyType), readSlot, writeSlot, notifySignal)
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proc emit*(qobject: QObject, signalName: string, args: openarray[QVariant] = []) =
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## Emit the signal with the given name and values
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if args.len > 0:
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var copy: seq[QVariant]
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for i in 0..args.len-1:
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copy.add(args[i])
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dos_qobject_signal_emit(qobject.data, signalName, cast[cint](args.len), cast[pointer](addr(copy[0])))
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else:
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dos_qobject_signal_emit(qobject.data, signalName, 0, cast[pointer](0))
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# QQuickView
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proc dos_qquickview_create(view: var pointer) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qquickview_delete(view: pointer) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qquickview_show(view: pointer) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qquickview_source(view: pointer, filename: var cstring, length: var int) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc dos_qquickview_set_source(view: pointer, filename: cstring) {.cdecl, dynlib:"libDOtherSide.so", importc.}
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proc create(view: var QQuickView) =
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## Create a new QQuickView
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var temp: pointer
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dos_qquickview_create(temp)
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view = QQuickView(temp)
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proc source(view: QQuickView): cstring =
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## Return the source Qml file loaded by the view
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var length: int
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dos_qquickview_source(pointer(view), result, length)
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proc `source=`(view: QQuickView, filename: cstring) =
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## Sets the source Qml file laoded by the view
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dos_qquickview_set_source(pointer(view), filename)
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proc show(view: QQuickView) =
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## Sets the view visible
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dos_qquickview_show(pointer(view))
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proc delete(view: QQuickView) =
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## Delete the given QQuickView
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dos_qquickview_delete(pointer(view))
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