1 files changed, 246 insertions, 0 deletions
diff --git a/src/Authoring/Studio/Controls/StringEdit.cpp b/src/Authoring/Studio/Controls/StringEdit.cpp
new file mode 100644
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+++ b/src/Authoring/Studio/Controls/StringEdit.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2002 NVIDIA Corporation.
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt 3D Studio.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** 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 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** 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.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//==============================================================================
+//	Prefix
+//==============================================================================
+#include "stdafx.h"
+
+//==============================================================================
+//	Include
+//==============================================================================
+#include "StringEdit.h"
+#include "OffscreenRenderer.h"
+#include "CoreUtils.h"
+
+//==============================================================================
+/**
+ * Constructor
+ */
+CStringEdit::CStringEdit()
+    : m_AutoSize(false)
+{
+    // StringEdit is going to have to handle its own RevertText.
+    // This can't be done in TextEdit because FloatEdit ( VectorEdit, etc ) are using the command
+    // stack for undo/redo
+    // StringEdit doesn't have command stack set until you hit enter or lose focus.
+    // We can't make CTextEdit::RegisterCommands a virtual function since its being called in the
+    // constructor,
+    // therefore this is a pretty lame way to register for a hotkey.
+    m_CommandHandler->RegisterKeyEvent(
+        new CDynHotKeyConsumer<CStringEdit>(this, &CStringEdit::RevertText),
+        Qt::ControlModifier, Qt::Key_Z);
+}
+
+//==============================================================================
+/**
+ * Destructor
+ */
+CStringEdit::~CStringEdit()
+{
+}
+
+//==============================================================================
+/**
+ * Returns the string value of the control.
+ */
+Q3DStudio::CString CStringEdit::GetString()
+{
+    return m_Value;
+}
+
+//==============================================================================
+/**
+ * Sets the string value of the control.
+ */
+void CStringEdit::SetData(const Q3DStudio::CString &inValue, bool inFireEvent /*= true*/)
+{
+    if (m_Value != inValue) {
+        m_Value = inValue;
+        SetDisplayString(inValue, inFireEvent);
+
+        if (inFireEvent)
+            SetDirty(true);
+    }
+}
+
+//==============================================================================
+/**
+ * Commits changes to the value of this control when the control loses focus.
+ */
+void CStringEdit::OnLoseFocus()
+{
+    CTextEdit::OnLoseFocus();
+    FireCommitEvent();
+}
+
+//==============================================================================
+/**
+ * Commits changes to the value of this control when the Enter button is pressed.
+ * @param inHighlight true to highlight the text after committing it
+ */
+void CStringEdit::EnterText(bool inHighlight)
+{
+    CTextEdit::EnterText(inHighlight);
+    FireCommitEvent();
+}
+
+void CStringEdit::RefreshDisplayFromData()
+{
+    SetDisplayString(GetString());
+    Invalidate();
+}
+
+bool CStringEdit::CanPaste()
+{
+    return true;
+}
+
+//==============================================================================
+/**
+ * Enables or disables auto-sizing of this control.  If auto-sizing is enabled
+ * the size of this control will be automatically set to fit the text that it
+ * contains.
+ * @param inAllow true to enable auto-sizing, false to disable auto-sizing
+ */
+void CStringEdit::AllowAutoSize(bool inAllow)
+{
+    m_AutoSize = inAllow;
+}
+
+//==============================================================================
+/**
+ * @return true if auto-resizing is enabled, otherwise false
+ */
+bool CStringEdit::GetAllowAutoSize()
+{
+    return m_AutoSize;
+}
+
+//==============================================================================
+/**
+ * If auto-resizing is enabled, this function will resize this control so that
+ * it is the same size as the text that it is displaying.  Text size is calculated
+ * with an offscreen buffer, so this can be done outside of a draw operation.
+ */
+void CStringEdit::ResetSize()
+{
+    // If auto-resizing of the text field is enabled
+    if (m_AutoSize) {
+        // Resize the control to fit the text, plus the buffer gap
+        COffscreenRenderer theRenderer(CRct(0, 0, 100, 16));
+        CPt theSize;
+        const auto textSize = theRenderer.GetTextSize(GetDisplayString().toQString());
+        theSize.x = textSize.width() + GetBufferLength() * 3;
+        theSize.y = textSize.height() + 1;
+        SetMinimumSize(theSize);
+        SetPreferredSize(theSize);
+        SetMaximumSize(theSize);
+    }
+}
+
+//==============================================================================
+/**
+ *	Primarily delegates up to the parent class, but responds by recalculating
+ *	size of the text box for auto-sized strings.
+ *
+ *	@param inDirty true to mark this control as dirty, which causes the string to be redrawn
+ *	false to mark the control as not needing to reevaluate its text during next draw cycle
+ */
+void CStringEdit::SetDirty(bool inDirty)
+{
+    // Allow the parent to handle this situation
+    CTextEdit::SetDirty(inDirty);
+
+    ResetSize();
+}
+
+//==============================================================================
+/**
+ * Reverts the displayed text to the previous text.
+ */
+void CStringEdit::RevertText()
+{
+    SetData(m_PreviousValue);
+    SetDisplayString(m_PreviousValue);
+
+    FireCommitEvent();
+    SelectAllText();
+}
+
+//==============================================================================
+/**
+ * Handles any non-character keys that were pressed and need to be handled.
+ *
+ * @param inChar The key that was pressed
+ * @param inFlags Indicates which modifier keys were down when event occurred
+ * @return true if this function handled the character, otherwise false
+ */
+bool CStringEdit::HandleSpecialChar(unsigned int inChar, Qt::KeyboardModifiers inFlags)
+{
+    bool theMessageWasHandled = false;
+
+    switch (inChar) {
+    // Escape and Ctrl+Z both do basically the same thing for StringEdits,
+    // They are special cased in TextEditInPlace though.
+    case Qt::Key_Escape:
+        RevertText();
+        theMessageWasHandled = true;
+        break;
+
+    default:
+        theMessageWasHandled = CTextEdit::HandleSpecialChar(inChar, inFlags);
+    }
+
+    return theMessageWasHandled;
+}
+
+//==============================================================================
+/**
+ * Called when this control gains focus.  Shows the caret, clears the current
+ * selection and invalidates the control so that it will get redrawn.
+ */
+void CStringEdit::OnGainFocus()
+{
+    CTextEdit::OnGainFocus();
+    m_PreviousValue = GetString();
+}
+
+//=============================================================================
+/**
+ * Handles character input from the keyboard.
+ *
+ * @param inChar Character that was pressed
+ * @return true if the character was handled, false if this control does not
+ * care about the character that was pressed
+ */
+bool CStringEdit::OnChar(const QString &inChar, Qt::KeyboardModifiers inFlags)
+{
+    return CTextEdit::OnChar(inChar, inFlags);
+}