DialogueMultiLineEditableTextBox_CustomRowHelper.h

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// Copyright Csaba Molnar, Daniel Butum. All Rights Reserved.
#pragma once
 
#include "DetailWidgetRow.h"
 
#include "Widgets/Input/SMultiLineEditableTextBox.h"
#include "DialogueBase_CustomRowHelper.h"
#include "SDialogueTextPropertyEditableTextBox.h"
 
class FDetailWidgetRow;
 
struct FDialogueMultiLineEditableTextBoxOptions
{
    typedef FDialogueMultiLineEditableTextBoxOptions Self;
public:
    FDialogueMultiLineEditableTextBoxOptions() {}
 
    void SetDefaults();
 
public:
    bool bSelectAllTextWhenFocused = false;
    bool bClearKeyboardFocusOnCommit = false;
    bool bSelectAllTextOnCommit = false;
    bool bAutoWrapText = true;
 
    float WrapTextAt = 0.f;
    EModifierKey::Type ModiferKeyForNewLine = EModifierKey::None;
 
    // Can not be set here
    TAttribute<FSlateFontInfo> Font;
    TAttribute<FSlateColor> ForegroundColor;
    TAttribute<FSlateColor> ReadOnlyForegroundColor;
    FEditableTextBoxStyle Style;
};
 
class FDialogueMultiLineEditableTextBox_CustomRowHelper :
    public FDialogueBase_CustomRowHelper,
    public TSharedFromThis<FDialogueMultiLineEditableTextBox_CustomRowHelper>
{
    typedef FDialogueMultiLineEditableTextBox_CustomRowHelper Self;
    typedef FDialogueBase_CustomRowHelper Super;
 
public:
    FDialogueMultiLineEditableTextBox_CustomRowHelper(FDetailWidgetRow* InDetailWidgetRow, const TSharedPtr<IPropertyHandle>& InPropertyHandle)
        : FDialogueBase_CustomRowHelper(InDetailWidgetRow, InPropertyHandle)
    {
        Options.SetDefaults();
    }
 
#define CREATE_OPTIONS_SETTER(_NameMethod, _VariableType, _OptionVariableName)  \
    Self& _NameMethod(_VariableType InVariableValue)              \
    {                                                             \
        Options._OptionVariableName = InVariableValue;            \
        return *this;                                             \
    }
 
    CREATE_OPTIONS_SETTER(Style, const FEditableTextBoxStyle&, Style)
    CREATE_OPTIONS_SETTER(Font, const TAttribute<FSlateFontInfo>&, Font)
    CREATE_OPTIONS_SETTER(ForegroundColor, const TAttribute<FSlateColor>&, ForegroundColor)
    CREATE_OPTIONS_SETTER(ReadOnlyForegroundColor, const TAttribute<FSlateColor>&, ReadOnlyForegroundColor)
    CREATE_OPTIONS_SETTER(SelectAllTextWhenFocused, bool, bSelectAllTextWhenFocused)
    CREATE_OPTIONS_SETTER(ClearKeyboardFocusOnCommit, bool, bClearKeyboardFocusOnCommit)
    CREATE_OPTIONS_SETTER(SelectAllTextOnCommit, bool, bSelectAllTextOnCommit)
    CREATE_OPTIONS_SETTER(AutoWrapText, bool, bAutoWrapText)
    CREATE_OPTIONS_SETTER(WrapTextAt, float, WrapTextAt)
    CREATE_OPTIONS_SETTER(ModiferKeyForNewLine, EModifierKey::Type, ModiferKeyForNewLine)
 
#undef CREATE_OPTIONS_SETTER
 
    FText GetTextValue() const;
 
    // NOTE: only call these after Update()
    FDialogueTextCommitedDelegate& OnTextCommittedEvent();
    FDialogueTextChangedDelegate& OnTextChangedEvent();
 
 
protected:
    void UpdateInternal() override;
 
private:
    // Events
    FDialogueTextCommitedDelegate TextCommittedEvent;
 
    // The text box Widget.
    TSharedPtr<SDialogueTextPropertyEditableTextBox> TextBoxWidget;
 
    // Options for the widget
    FDialogueMultiLineEditableTextBoxOptions Options;
 
    // Editable text property
    TSharedPtr<IEditableTextProperty> EditableTextProperty;
};