PlainTextEdit.nimpl

module PlainTextEdit;

import Object;
import Common;
import Icon;
import Enums;
import AbstractScrollArea;
import TextOption;

namedbits SignalMask extends AbstractScrollArea.SignalMask {
    BlockCountChanged,
    CopyAvailable,
    CursorPositionChanged,
    ModificationChanged,
    RedoAvailable,
    SelectionChanged,
    TextChanged,
    UndoAvailable,
    UpdateRequest
}

interface SignalHandler {
    // from Object:
    void destroyed(Object.Handle obj);
    void objectNameChanged(string objectName);

    // Widget:
    void customContextMenuRequested(Point pos);
    void windowIconChanged(Icon.Handle icon);
    void windowTitleChanged(string title);

    // Frame:
    // (none)

    // AbstractScrollArea:
    // (none)

    // PlainTextEdit:
    void blockCountChanged(int newBlockCount);
    void copyAvailable(bool yes);
    void cursorPositionChanged();
    void modificationChanged(bool changed);
    void redoAvailable(bool available);
    void selectionChanged();
    void textChanged();
    void undoAvailable(bool available);
    void updateRequest(Rect rect, int dy);
}

enum LineWrapMode {
    NoWrap,
    WidgetWidth
}

opaque Handle extends AbstractScrollArea.Handle {
    void setBackgroundVisible(bool visible);
    int blockCount();                           // readonly
    void setCenterOnScroll(bool state);
    void setCursorWidth(int width);
    void setDocumentTitle(string title);
    void setLineWrapMode(LineWrapMode mode);
    void setMaximumBlockCount(int count);
    void setOverwriteMode(bool overwrite);
    void setPlaceholderText(string text);
    void setPlainText(string text);
    void setReadOnly(bool state);
    void setTabChangesFocus(bool state);
    void setTabStopDistance(double distance);
    void setTextInteractionFlags(TextInteractionFlags tiFlags);
    void setUndoRedoEnabled(bool enabled);
    void setWordWrapMode(TextOption.WrapMode mode);
    
    string toPlainText();

    void setSignalMask(SignalMask mask);
}

Handle create(SignalHandler handler);