Add forward declaration

kaddressbook/importexportplugins/csv/import/qcsvmodel.cpp

@@ -7,7 +7,7 @@
 #include "qcsvmodel.h"
 #include "qcsvmodel_p.h"
 #include "qcsvreader.h"
-
+#include <QIODevice>
 #include <QPair>
 
 CsvParser::CsvParser(QObject *parent)

kaddressbook/importexportplugins/csv/import/qcsvmodel.h

@@ -7,7 +7,7 @@
 #pragma once
 
 #include <QAbstractTableModel>
-#include <QIODevice>
+class QIODevice;
 class CsvParser;
 class QCsvModel : public QAbstractTableModel
 {

kaddressbook/importexportplugins/gmx/gmximportexportplugininterface.h

@@ -8,7 +8,7 @@
 
 #include <KAddressBookImportExport/PluginInterface>
 #include <KContacts/Addressee>
-#include <QFile>
+class QFile;
 
 class GMXImportExportPluginInterface : public KAddressBookImportExport::PluginInterface
 {

kmail/editorconvertertextplugins/markdown/plugin/markdowninterface.h

@@ -7,7 +7,7 @@
 #pragma once
 
 #include <MessageComposer/PluginEditorConvertTextInterface>
-#include <QObject>
+class QObject;
 #include <QPointer>
 
 namespace MessageComposer

kmail/editorinitplugins/externalcomposer/externalcomposerconfigurewidget.h

@@ -7,7 +7,7 @@
 #pragma once
 
 #include <MessageComposer/PluginEditorInitConfigureWidget>
-#include <QWidget>
+class QWidget;
 class QCheckBox;
 class KUrlRequester;
 class ExternalComposerConfigureWidget : public MessageComposer::PluginEditorInitConfigureWidget

kmail/editorplugins/insertshorturl/shorturlengineplugin/tinyurlengineplugin/tinyurlengineinterface.h

@@ -7,7 +7,7 @@
 #pragma once
 
 #include <../shorturlengineinterface.h>
-#include <QNetworkReply>
+class QNetworkReply;
 class TinyUrlEngineInterface : public ShortUrlEngineInterface
 {
     Q_OBJECT

kmail/editorsendcheckplugins/automaticaddcontacts/automaticaddcontactsconfigurewidget.h

@@ -7,7 +7,7 @@
 #pragma once
 
 #include <MessageComposer/PluginEditorCheckBeforeSendConfigureWidget>
-#include <QWidget>
+class QWidget;
 class AutomaticAddContactsConfigureTab;
 class AutomaticAddContactsConfigureWidget : public MessageComposer::PluginEditorCheckBeforeSendConfigureWidget
 {

kmail/editorsendcheckplugins/checkbeforesend/configurewidget/checkbeforesendconfigurewidget.h

@@ -7,7 +7,7 @@
 #pragma once
 
 #include <MessageComposer/PluginEditorCheckBeforeSendConfigureWidget>
-#include <QWidget>
+class QWidget;
 
 class QCheckBox;
 class CheckBeforeSendConfigureWidget : public MessageComposer::PluginEditorCheckBeforeSendConfigureWidget

kmail/editorsendcheckplugins/confirm-address/confirmaddressconfigurewidget.h

@@ -7,7 +7,7 @@
 #pragma once
 
 #include <MessageComposer/PluginEditorCheckBeforeSendConfigureWidget>
-#include <QWidget>
+class QWidget;
 class ConfirmAddressConfigureTab;
 class ConfirmAddressConfigureWidget : public MessageComposer::PluginEditorCheckBeforeSendConfigureWidget
 {

plugins/messageviewer/bodypartformatter/calendar/attendeeselector.h

@@ -8,7 +8,7 @@
 
 #include "ui_attendeeselector.h"
 #include <QDialog>
-#include <QPushButton>
+class QPushButton;
 
 /**
   Dialog to select a set off attendees.

plugins/messageviewerconfigureplugins/foldersettings/folderconfiguresettingsgeneralwidget.h

@@ -9,7 +9,7 @@
 #include "folderconfiguresettings_private_export.h"
 #include "folderconfiguresettingspagebase.h"
 #include <AkonadiCore/Collection>
-#include <QWidget>
+class QWidget;
 namespace MailCommon
 {
 class CollectionGeneralWidget;

plugins/messageviewerconfigureplugins/foldersettings/folderconfiguresettingstemplatewidget.h

@@ -9,7 +9,7 @@
 #include "folderconfiguresettingspagebase.h"
 
 #include <AkonadiCore/Collection>
-#include <QWidget>
+class QWidget;
 namespace MailCommon
 {
 class CollectionTemplatesWidget;

plugins/messageviewerconfigureplugins/foldersettings/folderconfiguresettingsviewwidget.h

@@ -9,7 +9,7 @@
 #include "folderconfiguresettingspagebase.h"
 
 #include <AkonadiCore/Collection>
-#include <QWidget>
+class QWidget;
 namespace MailCommon
 {
 class CollectionViewWidget;

plugins/messageviewerplugins/createeventplugin/createeventjob.h

@@ -10,7 +10,7 @@
 #include <KCalendarCore/Event>
 #include <KJob>
 
-#include <QObject>
+class QObject;
 namespace MessageViewer
 {
 class CreateEventJob : public KJob

plugins/messageviewerplugins/createnoteplugin/createnotejob.h

@@ -13,7 +13,7 @@
 
 #include <kmime/kmime_message.h>
 
-#include <QObject>
+class QObject;
 
 namespace MessageViewer
 {

plugins/messageviewerplugins/createtodoplugin/createtodojob.h

@@ -10,7 +10,7 @@
 #include <KCalendarCore/Todo>
 #include <KJob>
 
-#include <QObject>
+class QObject;
 namespace MessageViewer
 {
 class CreateTodoJob : public KJob

plugins/webengineurlinterceptor/adblock/lib/widgets/adblockpluginurlinterceptorconfiguredialog.h

@@ -8,7 +8,7 @@
 
 #include "adblocklib_export.h"
 #include <PimCommon/ConfigurePluginDialog>
-#include <QWidget>
+class QWidget;
 
 namespace AdBlock
 {

sieveeditor/imapfoldercompletion/selectimapwidget.h

@@ -9,7 +9,7 @@
 #include <KSieveUi/AbstractMoveImapFolderWidget>
 #include <KSieveUi/SieveImapAccountSettings>
 #include <QPointer>
-#include <QWidget>
+class QWidget;
 class QToolButton;
 class SelectImapLineEdit;
 class SelectImapFolderDialog;

sieveeditor/regexeditorlineedit/regexpeditorlineedit.h

@@ -7,7 +7,7 @@
 #pragma once
 
 #include <KSieveUi/AbstractRegexpEditorLineEdit>
-#include <QWidget>
+class QWidget;
 class QLineEdit;
 class QToolButton;
 class RegexpEditorLineEdit : public KSieveUi::AbstractRegexpEditorLineEdit