richtextbuffer.h

很牛的GUI源码wxWidgets-2.8.0.zip 可在多种平台下运行.

    /// Gets the length of the range
    long GetLength() const { return m_end - m_start + 1; }

    /// Swaps the start and end
    void Swap() { long tmp = m_start; m_start = m_end; m_end = tmp; }

    /// Convert to internal form: (n, n) is the range of a single character.
    wxRichTextRange ToInternal() const { return wxRichTextRange(m_start, m_end-1); }

    /// Convert from internal to public API form: (n, n+1) is the range of a single character.
    wxRichTextRange FromInternal() const { return wxRichTextRange(m_start, m_end+1); }

protected:
    long m_start;
    long m_end;
};

#define wxRICHTEXT_ALL  wxRichTextRange(-2, -2)
#define wxRICHTEXT_NONE  wxRichTextRange(-1, -1)

/*!
 * wxTextAttrEx is an extended version of wxTextAttr with more paragraph attributes.
 */

class WXDLLIMPEXP_RICHTEXT wxTextAttrEx: public wxTextAttr
{
public:
    // ctors
    wxTextAttrEx(const wxTextAttrEx& attr);
    wxTextAttrEx(const wxTextAttr& attr) { Init(); (*this) = attr; }
    wxTextAttrEx() { Init(); }

    // Initialise this object
    void Init();

    // Copy
    void Copy(const wxTextAttrEx& attr);

    // Assignment from a wxTextAttrEx object
    void operator= (const wxTextAttrEx& attr);

    // Assignment from a wxTextAttr object
    void operator= (const wxTextAttr& attr);

    // Equality test
    bool operator== (const wxTextAttrEx& attr) const;

    // setters
    void SetCharacterStyleName(const wxString& name) { m_characterStyleName = name; SetFlags(GetFlags() | wxTEXT_ATTR_CHARACTER_STYLE_NAME); }
    void SetParagraphStyleName(const wxString& name) { m_paragraphStyleName = name; SetFlags(GetFlags() | wxTEXT_ATTR_PARAGRAPH_STYLE_NAME); }
    void SetListStyleName(const wxString& name) { m_listStyleName = name; SetFlags(GetFlags() | wxTEXT_ATTR_LIST_STYLE_NAME); }
    void SetParagraphSpacingAfter(int spacing) { m_paragraphSpacingAfter = spacing; SetFlags(GetFlags() | wxTEXT_ATTR_PARA_SPACING_AFTER); }
    void SetParagraphSpacingBefore(int spacing) { m_paragraphSpacingBefore = spacing; SetFlags(GetFlags() | wxTEXT_ATTR_PARA_SPACING_BEFORE); }
    void SetLineSpacing(int spacing) { m_lineSpacing = spacing; SetFlags(GetFlags() | wxTEXT_ATTR_LINE_SPACING); }
    void SetBulletStyle(int style) { m_bulletStyle = style; SetFlags(GetFlags() | wxTEXT_ATTR_BULLET_STYLE); }
    void SetBulletNumber(int n) { m_bulletNumber = n; SetFlags(GetFlags() | wxTEXT_ATTR_BULLET_NUMBER); }
    void SetBulletText(const wxString& text) { m_bulletText = text; SetFlags(GetFlags() | wxTEXT_ATTR_BULLET_TEXT); }
    void SetBulletName(const wxString& name) { m_bulletName = name; SetFlags(GetFlags() | wxTEXT_ATTR_BULLET_NAME); }
    void SetBulletFont(const wxString& bulletFont) { m_bulletFont = bulletFont; }
    void SetURL(const wxString& url) { m_urlTarget = url; SetFlags(GetFlags() | wxTEXT_ATTR_URL); }
    void SetPageBreak(bool pageBreak = true) { SetFlags(pageBreak ? (GetFlags() | wxTEXT_ATTR_PAGE_BREAK) : (GetFlags() & ~wxTEXT_ATTR_PAGE_BREAK)); }
    void SetTextEffects(int effects) { m_textEffects = effects; SetFlags(GetFlags() | wxTEXT_ATTR_EFFECTS); }
    void SetTextEffectFlags(int effects) { m_textEffectFlags = effects; }
    void SetOutlineLevel(int level) { m_outlineLevel = level; SetFlags(GetFlags() | wxTEXT_ATTR_OUTLINE_LEVEL); }

    const wxString& GetCharacterStyleName() const { return m_characterStyleName; }
    const wxString& GetParagraphStyleName() const { return m_paragraphStyleName; }
    const wxString& GetListStyleName() const { return m_listStyleName; }
    int GetParagraphSpacingAfter() const { return m_paragraphSpacingAfter; }
    int GetParagraphSpacingBefore() const { return m_paragraphSpacingBefore; }
    int GetLineSpacing() const { return m_lineSpacing; }
    int GetBulletStyle() const { return m_bulletStyle; }
    int GetBulletNumber() const { return m_bulletNumber; }
    const wxString& GetBulletText() const { return m_bulletText; }
    const wxString& GetBulletName() const { return m_bulletName; }
    const wxString& GetBulletFont() const { return m_bulletFont; }
    const wxString& GetURL() const { return m_urlTarget; }
    int GetTextEffects() const { return m_textEffects; }
    int GetTextEffectFlags() const { return m_textEffectFlags; }
    int GetOutlineLevel() const { return m_outlineLevel; }

    bool HasFontWeight() const { return (GetFlags() & wxTEXT_ATTR_FONT_WEIGHT) != 0; }
    bool HasFontSize() const { return (GetFlags() & wxTEXT_ATTR_FONT_SIZE) != 0; }
    bool HasFontItalic() const { return (GetFlags() & wxTEXT_ATTR_FONT_ITALIC) != 0; }
    bool HasFontUnderlined() const { return (GetFlags() & wxTEXT_ATTR_FONT_UNDERLINE) != 0; }
    bool HasFontFaceName() const { return (GetFlags() & wxTEXT_ATTR_FONT_FACE) != 0; }

    bool HasParagraphSpacingAfter() const { return HasFlag(wxTEXT_ATTR_PARA_SPACING_AFTER); }
    bool HasParagraphSpacingBefore() const { return HasFlag(wxTEXT_ATTR_PARA_SPACING_BEFORE); }
    bool HasLineSpacing() const { return HasFlag(wxTEXT_ATTR_LINE_SPACING); }
    bool HasCharacterStyleName() const { return HasFlag(wxTEXT_ATTR_CHARACTER_STYLE_NAME) && !m_characterStyleName.IsEmpty(); }
    bool HasParagraphStyleName() const { return HasFlag(wxTEXT_ATTR_PARAGRAPH_STYLE_NAME) && !m_paragraphStyleName.IsEmpty(); }
    bool HasListStyleName() const { return HasFlag(wxTEXT_ATTR_LIST_STYLE_NAME) || !m_listStyleName.IsEmpty(); }
    bool HasBulletStyle() const { return HasFlag(wxTEXT_ATTR_BULLET_STYLE); }
    bool HasBulletNumber() const { return HasFlag(wxTEXT_ATTR_BULLET_NUMBER); }
    bool HasBulletText() const { return HasFlag(wxTEXT_ATTR_BULLET_TEXT); }
    bool HasBulletName() const { return HasFlag(wxTEXT_ATTR_BULLET_NAME); }
    bool HasURL() const { return HasFlag(wxTEXT_ATTR_URL); }
    bool HasPageBreak() const { return HasFlag(wxTEXT_ATTR_PAGE_BREAK); }
    bool HasTextEffects() const { return HasFlag(wxTEXT_ATTR_EFFECTS); }
    bool HasTextEffect(int effect) const { return HasFlag(wxTEXT_ATTR_EFFECTS) && ((GetTextEffectFlags() & effect) != 0); }
    bool HasOutlineLevel() const { return HasFlag(wxTEXT_ATTR_OUTLINE_LEVEL); }

    // Is this a character style?
    bool IsCharacterStyle() const { return (0 != (GetFlags() & wxTEXT_ATTR_CHARACTER)); }
    bool IsParagraphStyle() const { return (0 != (GetFlags() & wxTEXT_ATTR_PARAGRAPH)); }

    // returns false if we have any attributes set, true otherwise
    bool IsDefault() const
    {
        return (GetFlags() == 0);
    }

    // return the attribute having the valid font and colours: it uses the
    // attributes set in attr and falls back first to attrDefault and then to
    // the text control font/colours for those attributes which are not set
    static wxTextAttrEx CombineEx(const wxTextAttrEx& attr,
                              const wxTextAttrEx& attrDef,
                              const wxTextCtrlBase *text);

private:
    // Paragraph styles
    int                 m_paragraphSpacingAfter;
    int                 m_paragraphSpacingBefore;
    int                 m_lineSpacing;
    int                 m_bulletStyle;
    int                 m_bulletNumber;
    int                 m_textEffects;
    int                 m_textEffectFlags;
    int                 m_outlineLevel;
    wxString            m_bulletText;
    wxString            m_bulletFont;
    wxString            m_bulletName;
    wxString            m_urlTarget;

    // Character style
    wxString            m_characterStyleName;

    // Paragraph style
    wxString            m_paragraphStyleName;

    // List style
    wxString            m_listStyleName;
};

/*!
 * wxRichTextAttr stores attributes without a wxFont object, so is a much more
 * efficient way to query styles.
 */

class WXDLLIMPEXP_RICHTEXT wxRichTextAttr
{
public:
    // ctors
    wxRichTextAttr(const wxTextAttrEx& attr);
    wxRichTextAttr(const wxRichTextAttr& attr);
    wxRichTextAttr() { Init(); }
    wxRichTextAttr(const wxColour& colText,
               const wxColour& colBack = wxNullColour,
               wxTextAttrAlignment alignment = wxTEXT_ALIGNMENT_DEFAULT);

    // Initialise this object.
    void Init();

    // Copy
    void Copy(const wxRichTextAttr& attr);

    // Assignment from a wxRichTextAttr object.
    void operator= (const wxRichTextAttr& attr);

    // Assignment from a wxTextAttrEx object.
    void operator= (const wxTextAttrEx& attr);

    // Equality test
    bool operator== (const wxRichTextAttr& attr) const;

    // Making a wxTextAttrEx object.
    operator wxTextAttrEx () const ;

    // Create font from font attributes.
    wxFont CreateFont() const;

    // Get attributes from font.
    bool GetFontAttributes(const wxFont& font);

    // setters
    void SetTextColour(const wxColour& colText) { m_colText = colText; m_flags |= wxTEXT_ATTR_TEXT_COLOUR; }
    void SetBackgroundColour(const wxColour& colBack) { m_colBack = colBack; m_flags |= wxTEXT_ATTR_BACKGROUND_COLOUR; }
    void SetAlignment(wxTextAttrAlignment alignment) { m_textAlignment = alignment; m_flags |= wxTEXT_ATTR_ALIGNMENT; }
    void SetTabs(const wxArrayInt& tabs) { m_tabs = tabs; m_flags |= wxTEXT_ATTR_TABS; }
    void SetLeftIndent(int indent, int subIndent = 0) { m_leftIndent = indent; m_leftSubIndent = subIndent; m_flags |= wxTEXT_ATTR_LEFT_INDENT; }
    void SetRightIndent(int indent) { m_rightIndent = indent; m_flags |= wxTEXT_ATTR_RIGHT_INDENT; }

    void SetFontSize(int pointSize) { m_fontSize = pointSize; m_flags |= wxTEXT_ATTR_FONT_SIZE; }
    void SetFontStyle(int fontStyle) { m_fontStyle = fontStyle; m_flags |= wxTEXT_ATTR_FONT_ITALIC; }
    void SetFontWeight(int fontWeight) { m_fontWeight = fontWeight; m_flags |= wxTEXT_ATTR_FONT_WEIGHT; }
    void SetFontFaceName(const wxString& faceName) { m_fontFaceName = faceName; m_flags |= wxTEXT_ATTR_FONT_FACE; }
    void SetFontUnderlined(bool underlined) { m_fontUnderlined = underlined; m_flags |= wxTEXT_ATTR_FONT_UNDERLINE; }

    void SetFlags(long flags) { m_flags = flags; }

    void SetCharacterStyleName(const wxString& name) { m_characterStyleName = name; m_flags |= wxTEXT_ATTR_CHARACTER_STYLE_NAME; }
    void SetParagraphStyleName(const wxString& name) { m_paragraphStyleName = name; m_flags |= wxTEXT_ATTR_PARAGRAPH_STYLE_NAME; }
    void SetListStyleName(const wxString& name) { m_listStyleName = name; SetFlags(GetFlags() | wxTEXT_ATTR_LIST_STYLE_NAME); }
    void SetParagraphSpacingAfter(int spacing) { m_paragraphSpacingAfter = spacing; m_flags |= wxTEXT_ATTR_PARA_SPACING_AFTER; }
    void SetParagraphSpacingBefore(int spacing) { m_paragraphSpacingBefore = spacing; m_flags |= wxTEXT_ATTR_PARA_SPACING_BEFORE; }
    void SetLineSpacing(int spacing) { m_lineSpacing = spacing; m_flags |= wxTEXT_ATTR_LINE_SPACING; }
    void SetBulletStyle(int style) { m_bulletStyle = style; m_flags |= wxTEXT_ATTR_BULLET_STYLE; }
    void SetBulletNumber(int n) { m_bulletNumber = n; m_flags |= wxTEXT_ATTR_BULLET_NUMBER; }
    void SetBulletText(const wxString& text) { m_bulletText = text; m_flags |= wxTEXT_ATTR_BULLET_TEXT; }
    void SetBulletFont(const wxString& bulletFont) { m_bulletFont = bulletFont; }
    void SetBulletName(const wxString& name) { m_bulletName = name; m_flags |= wxTEXT_ATTR_BULLET_NAME; }
    void SetURL(const wxString& url) { m_urlTarget = url; m_flags |= wxTEXT_ATTR_URL; }
    void SetPageBreak(bool pageBreak = true) { SetFlags(pageBreak ? (GetFlags() | wxTEXT_ATTR_PAGE_BREAK) : (GetFlags() & ~wxTEXT_ATTR_PAGE_BREAK)); }
    void SetTextEffects(int effects) { m_textEffects = effects; SetFlags(GetFlags() | wxTEXT_ATTR_EFFECTS); }
    void SetTextEffectFlags(int effects) { m_textEffectFlags = effects; }
    void SetOutlineLevel(int level) { m_outlineLevel = level; SetFlags(GetFlags() | wxTEXT_ATTR_OUTLINE_LEVEL); }

    const wxColour& GetTextColour() const { return m_colText; }
    const wxColour& GetBackgroundColour() const { return m_colBack; }
    wxTextAttrAlignment GetAlignment() const { return m_textAlignment; }
    const wxArrayInt& GetTabs() const { return m_tabs; }
    long GetLeftIndent() const { return m_leftIndent; }
    long GetLeftSubIndent() const { return m_leftSubIndent; }
    long GetRightIndent() const { return m_rightIndent; }
    long GetFlags() const { return m_flags; }

    int GetFontSize() const { return m_fontSize; }
    int GetFontStyle() const { return m_fontStyle; }
    int GetFontWeight() const { return m_fontWeight; }
    bool GetFontUnderlined() const { return m_fontUnderlined; }
    const wxString& GetFontFaceName() const { return m_fontFaceName; }

    const wxString& GetCharacterStyleName() const { return m_characterStyleName; }
    const wxString& GetParagraphStyleName() const { return m_paragraphStyleName; }
    const wxString& GetListStyleName() const { return m_listStyleName; }
    int GetParagraphSpacingAfter() const { return m_paragraphSpacingAfter; }
    int GetParagraphSpacingBefore() const { return m_paragraphSpacingBefore; }
    int GetLineSpacing() const { return m_lineSpacing; }
    int GetBulletStyle() const { return m_bulletStyle; }
    int GetBulletNumber() const { return m_bulletNumber; }
    const wxString& GetBulletText() const { return m_bulletText; }
    const wxString& GetBulletFont() const { return m_bulletFont; }
    const wxString& GetBulletName() const { return m_bulletName; }
    const wxString& GetURL() const { return m_urlTarget; }
    int GetTextEffects() const { return m_textEffects; }
    int GetTextEffectFlags() const { return m_textEffectFlags; }
    int GetOutlineLevel() const { return m_outlineLevel; }

    // accessors
    bool HasTextColour() const { return m_colText.Ok() && HasFlag(wxTEXT_ATTR_TEXT_COLOUR) ; }
    bool HasBackgroundColour() const { return m_colBack.Ok() && HasFlag(wxTEXT_ATTR_BACKGROUND_COLOUR) ; }
    bool HasAlignment() const { return (m_textAlignment != wxTEXT_ALIGNMENT_DEFAULT) || ((m_flags & wxTEXT_ATTR_ALIGNMENT) != 0) ; }
    bool HasTabs() const { return (m_flags & wxTEXT_ATTR_TABS) != 0 ; }
    bool HasLeftIndent() const { return (m_flags & wxTEXT_ATTR_LEFT_INDENT) != 0 ; }
    bool HasRightIndent() const { return (m_flags & wxTEXT_ATTR_RIGHT_INDENT) != 0 ; }
    bool HasFontWeight() const { return (m_flags & wxTEXT_ATTR_FONT_WEIGHT) != 0; }
    bool HasFontSize() const { return (m_flags & wxTEXT_ATTR_FONT_SIZE) != 0; }
    bool HasFontItalic() const { return (m_flags & wxTEXT_ATTR_FONT_ITALIC) != 0; }
    bool HasFontUnderlined() const { return (m_flags & wxTEXT_ATTR_FONT_UNDERLINE) != 0; }
    bool HasFontFaceName() const { return (m_flags & wxTEXT_ATTR_FONT_FACE) != 0; }
    bool HasFont() const { return (m_flags & (wxTEXT_ATTR_FONT)) != 0; }

    bool HasParagraphSpacingAfter() const { return (m_flags & wxTEXT_ATTR_PARA_SPACING_AFTER) != 0; }
    bool HasParagraphSpacingBefore() const { return (m_flags & wxTEXT_ATTR_PARA_SPACING_BEFORE) != 0; }
    bool HasLineSpacing() const { return (m_flags & wxTEXT_ATTR_LINE_SPACING) != 0; }
    bool HasCharacterStyleName() const { return (m_flags & wxTEXT_ATTR_CHARACTER_STYLE_NAME) != 0 && !m_characterStyleName.IsEmpty(); }
    bool HasParagraphStyleName() const { return (m_flags & wxTEXT_ATTR_PARAGRAPH_STYLE_NAME) != 0 && !m_paragraphStyleName.IsEmpty(); }
    bool HasListStyleName() const { return HasFlag(wxTEXT_ATTR_LIST_STYLE_NAME) || !m_listStyleName.IsEmpty(); }
    bool HasBulletStyle() const { return (m_flags & wxTEXT_ATTR_BULLET_STYLE) != 0; }
    bool HasBulletNumber() const { return (m_flags & wxTEXT_ATTR_BULLET_NUMBER) != 0; }
    bool HasBulletText() const { return (m_flags & wxTEXT_ATTR_BULLET_TEXT) != 0; }
    bool HasBulletName() const { return (m_flags & wxTEXT_ATTR_BULLET_NAME) != 0; }
    bool HasURL() const { return HasFlag(wxTEXT_ATTR_URL); }
    bool HasPageBreak() const { return HasFlag(wxTEXT_ATTR_PAGE_BREAK); }
    bool HasTextEffects() const { return HasFlag(wxTEXT_ATTR_EFFECTS); }
    bool HasTextEffect(int effect) const { return HasFlag(wxTEXT_ATTR_EFFECTS) && ((GetTextEffectFlags() & effect) != 0); }
    bool HasOutlineLevel() const { return HasFlag(wxTEXT_ATTR_OUTLINE_LEVEL); }

    bool HasFlag(long flag) const { return (m_flags & flag) != 0; }

    // Is this a character style?
    bool IsCharacterStyle() const { return (0 != (GetFlags() & wxTEXT_ATTR_CHARACTER)); }
    bool IsParagraphStyle() const { return (0 != (GetFlags() & wxTEXT_ATTR_PARAGRAPH)); }

    // returns false if we have any attributes set, true otherwise
    bool IsDefault() const
    {
        return GetFlags() == 0;
    }

    // Merges the given attributes. Does not affect 'this'. If compareWith
    // is non-NULL, then it will be used to mask out those attributes that are the same in style
    // and compareWith, for situations where we don't want to explicitly set inherited attributes.
    bool Apply(const wxRichTextAttr& style, const wxRichTextAttr* compareWith = NULL);

    // Merges the given attributes and returns the result. Does not affect 'this'. If compareWith
    // is non-NULL, then it will be used to mask out those attributes that are the same in style
    // and compareWith, for situations where we don't want to explicitly set inherited attributes.
    wxRichTextAttr Combine(const wxRichTextAttr& style, const wxRichTextAttr* compareWith = NULL) const;

private:
    long                m_flags;

    // Paragraph styles
    wxArrayInt          m_tabs; // array of int: tab stops in 1/10 mm
    int                 m_leftIndent; // left indent in 1/10 mm
    int                 m_leftSubIndent; // left indent for all but the first
                                         // line in a paragraph relative to the
                                         // first line, in 1/10 mm
    int                 m_rightIndent; // right indent in 1/10 mm
    wxTextAttrAlignment m_textAlignment;