t9write: Add Thai handwriting recognition

[ChangeLog] Added Thai handwriting recognition (T9 Write).

Change-Id: Idb34fcf07d0318bbca6e6573e5859edb375f205f
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

7 files changed, 110 insertions, 1 deletions

diff --git a/src/virtualkeyboard/content/components/InputModeKey.qml b/src/virtualkeyboard/content/components/InputModeKey.qml
index 6ac04422..f7b31b9b 100644
--- a/src/virtualkeyboard/content/components/InputModeKey.qml
+++ b/src/virtualkeyboard/content/components/InputModeKey.qml
@@ -75,6 +75,7 @@ Key {
         "中文",  // InputEngine.InputMode.ChineseHandwriting
         "日本語", // InputEngine.InputMode.JapaneseHandwriting
         "한국어", // InputEngine.InputMode.KoreanHandwriting
+        "กขค",  // InputEngine.InputMode.Thai
     ]
 
     /*!
diff --git a/src/virtualkeyboard/content/components/Keyboard.qml b/src/virtualkeyboard/content/components/Keyboard.qml
index 00c7a926..da064820 100644
--- a/src/virtualkeyboard/content/components/Keyboard.qml
+++ b/src/virtualkeyboard/content/components/Keyboard.qml
@@ -1344,6 +1344,9 @@ Item {
                     // Make sure the current layout is included in the list
                     if (customInputMethodSharedLayouts.indexOf(layoutType) === -1)
                         customInputMethodSharedLayouts.push(layoutType)
+
+                    // Reset input mode, since inputEngine.inputModes is updated
+                    inputModeNeedsReset = true
                 }
             } catch (e) {
                 console.error(e.message)
diff --git a/src/virtualkeyboard/content/layouts/th_TH/handwriting.qml b/src/virtualkeyboard/content/layouts/th_TH/handwriting.qml
new file mode 100644
index 00000000..428f29fa
--- /dev/null
+++ b/src/virtualkeyboard/content/layouts/th_TH/handwriting.qml
@@ -0,0 +1,99 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt Virtual Keyboard module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 or (at your option) any later version
+** approved by the KDE Free Qt Foundation. The licenses are as published by
+** the Free Software Foundation and appearing in the file LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.0
+import QtQuick.Layouts 1.0
+import QtQuick.VirtualKeyboard 2.3
+
+KeyboardLayout {
+    function createInputMethod() {
+        return Qt.createQmlObject('import QtQuick 2.0; import QtQuick.VirtualKeyboard.Plugins 2.3; HandwritingInputMethod {}', parent)
+    }
+    sharedLayouts: ['symbols']
+
+    KeyboardRow {
+        Layout.preferredHeight: 3
+        KeyboardColumn {
+            Layout.preferredWidth: bottomRow.width - hideKeyboardKey.width
+            KeyboardRow {
+                TraceInputKey {
+                    objectName: "hwrInputArea"
+                    patternRecognitionMode: InputEngine.PatternRecognitionMode.Handwriting
+                    horizontalRulers:
+                        InputContext.inputEngine.inputMode !== InputEngine.InputMode.Thai ? [] :
+                            [Math.round(boundingBox.height / 4), Math.round(boundingBox.height / 4) * 3]
+                }
+            }
+        }
+        KeyboardColumn {
+            Layout.preferredWidth: hideKeyboardKey.width
+            KeyboardRow {
+                BackspaceKey {}
+            }
+            KeyboardRow {
+                EnterKey {}
+            }
+            KeyboardRow {
+                ShiftKey { }
+            }
+        }
+    }
+    KeyboardRow {
+        id: bottomRow
+        Layout.preferredHeight: 1
+        keyWeight: 154
+        InputModeKey {
+            weight: 217
+        }
+        ChangeLanguageKey {
+            weight: 154
+            customLayoutsOnly: true
+        }
+        HandwritingModeKey {
+            weight: 154
+        }
+        SpaceKey {
+            weight: 864
+        }
+        Key {
+            key: Qt.Key_QuoteDbl
+            text: "\""
+            alternativeKeys: "<>()#%&*/\\\"'=+-_"
+        }
+        Key {
+            key: Qt.Key_Period
+            text: "."
+            alternativeKeys: ":;,.?!"
+        }
+        HideKeyboardKey {
+            id: hideKeyboardKey
+            weight: 204
+        }
+    }
+}
diff --git a/src/virtualkeyboard/content/styles/default/style.qml b/src/virtualkeyboard/content/styles/default/style.qml
index d561ac28..095d5fc4 100644
--- a/src/virtualkeyboard/content/styles/default/style.qml
+++ b/src/virtualkeyboard/content/styles/default/style.qml
@@ -792,6 +792,8 @@ KeyboardStyle {
                         return "日本語"
                     case InputEngine.InputMode.KoreanHandwriting:
                         return "한국어"
+                    case InputEngine.InputMode.Thai:
+                        return "กขค"
                     default:
                         return "Abc"
                     }
diff --git a/src/virtualkeyboard/content/styles/retro/style.qml b/src/virtualkeyboard/content/styles/retro/style.qml
index eb640783..17d2581e 100644
--- a/src/virtualkeyboard/content/styles/retro/style.qml
+++ b/src/virtualkeyboard/content/styles/retro/style.qml
@@ -905,6 +905,8 @@ KeyboardStyle {
                     return "日本語"
                 case InputEngine.InputMode.KoreanHandwriting:
                     return "한국어"
+                case InputEngine.InputMode.Thai:
+                    return "กขค"
                 default:
                     return "Abc"
                 }
diff --git a/src/virtualkeyboard/qvirtualkeyboardinputengine.cpp b/src/virtualkeyboard/qvirtualkeyboardinputengine.cpp
index ddc793bf..f6fc03ec 100644
--- a/src/virtualkeyboard/qvirtualkeyboardinputengine.cpp
+++ b/src/virtualkeyboard/qvirtualkeyboardinputengine.cpp
@@ -788,6 +788,7 @@ void QVirtualKeyboardInputEngine::timerEvent(QTimerEvent *timerEvent)
         \li \c InputEngine.InputMode.ChineseHandwriting Chinese handwriting.
         \li \c InputEngine.InputMode.JapaneseHandwriting Japanese handwriting.
         \li \c InputEngine.InputMode.KoreanHandwriting Korean handwriting.
+        \li \c InputEngine.InputMode.Thai Thai input mode.
     \endlist
 */
 
diff --git a/src/virtualkeyboard/qvirtualkeyboardinputengine.h b/src/virtualkeyboard/qvirtualkeyboardinputengine.h
index 29c0eedd..1a0f68d1 100644
--- a/src/virtualkeyboard/qvirtualkeyboardinputengine.h
+++ b/src/virtualkeyboard/qvirtualkeyboardinputengine.h
@@ -83,7 +83,8 @@ public:
         Hebrew,
         ChineseHandwriting,
         JapaneseHandwriting,
-        KoreanHandwriting
+        KoreanHandwriting,
+        Thai
     };
     Q_ENUM(InputMode)