Remove "2" from Qt Quick Controls directories

Qt Quick Controls 2 was named that way because it was a follow-up to
Qt Quick Controls 1.x. Now that Qt Quick Controls 1 is no longer
supported, we don't need to have "2" in the name. Work on this was
already started for the documentation in
1abdfe5d5a052f2298b7bf657513dfa7e0c66a56.

By doing this renaming a few weeks before feature freeze, it won't
affect the release but still results in as little time possible spent
manually fixing conflicts in cherry-picks from non-LTS releases as a
result of the renaming.

This patch does the following:

- Renames directories.
- Adapts CMakeLists.txt and other files to account for the new paths.

A follow-up patch will handle documentation.

It does not touch library names or other user-facing stuff, as that
will have to be done in Qt 7.

Task-number: QTBUG-95413
Change-Id: I170d8db19033ee71e495ff0c5c1a517a41ed7634
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

3 files changed, 100 insertions, 0 deletions

diff --git a/examples/quickcontrols/texteditor/doc/images/qtquickcontrols2-texteditor-desktop.jpg b/examples/quickcontrols/texteditor/doc/images/qtquickcontrols2-texteditor-desktop.jpg
new file mode 100644
index 0000000000..259e0e8b07
--- /dev/null
+++ b/examples/quickcontrols/texteditor/doc/images/qtquickcontrols2-texteditor-desktop.jpg
diff --git a/examples/quickcontrols/texteditor/doc/images/qtquickcontrols2-texteditor-touch.jpg b/examples/quickcontrols/texteditor/doc/images/qtquickcontrols2-texteditor-touch.jpg
new file mode 100644
index 0000000000..6a924cdf52
--- /dev/null
+++ b/examples/quickcontrols/texteditor/doc/images/qtquickcontrols2-texteditor-touch.jpg
diff --git a/examples/quickcontrols/texteditor/doc/src/qtquickcontrols2-texteditor.qdoc b/examples/quickcontrols/texteditor/doc/src/qtquickcontrols2-texteditor.qdoc
new file mode 100644
index 0000000000..d626a6a04e
--- /dev/null
+++ b/examples/quickcontrols/texteditor/doc/src/qtquickcontrols2-texteditor.qdoc
@@ -0,0 +1,100 @@
+// Copyright (C) 2017 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
+/*!
+    \example texteditor
+    \keyword Qt Quick Controls - Text Editor
+    \title Qt Quick Controls - Text Editor
+    \keyword Qt Quick Controls 2 - Text Editor
+    \ingroup qtquickcontrols2-examples
+    \brief A QML app using Qt Quick Controls and a C++ class to
+    provide a fully-functional rich-text editor application.
+
+    The \e {Text Editor Example} presents a sample HTML file using the TextArea
+    control, preserving the HTML formatting. The application comes with two user
+    interfaces; one for traditional desktop platforms with a mouse pointer, and
+    another simpler, touch-oriented version.
+
+    \section1 Desktop User Interface
+
+    \image qtquickcontrols2-texteditor-desktop.jpg
+
+    The desktop version is a complete text editor with capabilities for formatting
+    text, and opening and saving HTML and plain text files. It demonstrates the
+    native-looking dialogs and menus using the \l{Qt Labs Platform} module. These
+    types are mostly suitable for desktop platforms with support for multiple
+    top-level windows, a mouse pointer, and moderate screen size.
+
+    The desktop UI uses FileDialog for opening and saving files:
+
+    \quotefromfile texteditor/qml/texteditor.qml
+    \skipto FileDialog
+    \printuntil /\bsaveAs\b/
+    \printline }
+
+    It uses FontDialog and ColorDialog for choosing fonts and colors:
+
+    \skipto FontDialog
+    \printuntil /.*colorDialog$/
+    \printuntil /^\s{4}\}$/
+
+    It also uses \l[QML QtLabsPlatform]{Menu} and
+    \l[QML QtLabsPlatform]{MenuItem} that provide a context menu to format text
+    within:
+
+    \skipto /\bMenu\b/
+    \printuntil /^\s{4}\}$/
+
+    \note There is also a standard menubar with more options than the
+    context menu.
+
+    \section1 Touch User Interface
+
+    \image qtquickcontrols2-texteditor-touch.jpg
+
+    The touch user interface is a simplified version of the text editor. It is
+    suitable for touch devices with limited screen size. The example uses
+    \l{Using File Selectors with Qt Quick Controls}{file selectors} to load
+    the appropriate user interface automatically.
+
+    Unlike the desktop version, which uses top-level dialogs, the touch version
+    uses the QML \l Dialog type, which is not a top-level window. This type of
+    dialog is fully supported on mobile and embedded platforms that do not support
+    multiple top-level windows.
+
+    \quotefromfile texteditor/qml/+touch/texteditor.qml
+    \skipto /\bDialog\b/
+    \printuntil /^\s{4}\}$/
+
+    \section1 C++ Backend
+
+    Both user interfaces use the same C++ backend, which supports opening, formatting,
+    and editing a document. The C++ class, \c DocumentHandler, extends QObject and is
+    registered as a QML type under the namespace \c {io.qt.examples.texteditor 1.0}.
+
+    The following snippets show how the type is registered under a namespace and later
+    imported and instantiated by \e main.qml. For more information about registering C++
+    classes as QML types, see \l {Defining QML Types from C++}.
+
+    QML type registration:
+
+    \code
+    #include <QtQml/qqml.h>
+    ...
+    qmlRegisterType<DocumentHandler>("io.qt.examples.texteditor", 1, 0, "DocumentHandler");
+    ...
+    \endcode
+
+    QML namespace import:
+
+    \code
+    import io.qt.examples.texteditor 1.0
+    \endcode
+
+    QML instance:
+
+    \quotefromfile texteditor/qml/texteditor.qml
+    \skipto DocumentHandler
+    \printuntil /^\s{4}\}$/
+
+    \include examples-run.qdocinc
+*/