mtextedit.h

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#ifndef _MGUI_TEXT_EDIT_H
#define _MGUI_TEXT_EDIT_H

#if defined(_MGNCSCTRL_TEXTEDITOR) || (defined(_MGCTRL_TEXTEDIT) && defined(_MGCTRL_TEXTEDIT_USE_NEW_IMPL))

#ifdef __cplusplus
extern "C" {
#endif

/* enable ES_TITLE stle of TEXTEDIT control */
#define _MGHAVE_TEXTEDITTITLE 0

DECLARE_OBJECT(mTextBuffer)
DECLARE_OBJECT(mTextIterator)
DECLARE_OBJECT(mTextLayout)
DECLARE_OBJECT(mTextLayoutNode)
DECLARE_OBJECT(mTextRender)

// mTextBuffer
typedef struct _TextBufferObserverNode {
        ITextBufferObserver* observer;
        struct _TextBufferObserverNode* next;
}mTextBufferObserverNode;

#define mTextBufferHeader(Clss)  \
        mObjectHeader(Clss)     \
        INTERFACE(ITextBuffer) \
        char * buffer;  \
        int max_size; \
        int char_len; \
        mTextBufferObserverNode* observers;

#define mTextBufferClassHeader(Clss, Super) \
        mObjectClassHeader(Clss, Super)  \
        ITextBufferHeader(ITextBuffer, Clss)

//mTextBuffer_construct(const char* str = NULL, const char* str_len = 0)

DEFINE_OBJECT(mTextBuffer, mObject)


// mTextIterator
#define mTextIteratorHeader(Clss)  \
        mObjectHeader(Clss)           \
        INTERFACE(ITextIterator) \
        mTextBuffer* buffer;            \
        int index;

#define mTextIteratorClassHeader(Clss, Super) \
        mObjectClassHeader(Clss, Super)          \
        ITextIteratorHeader(ITextIterator, Clss)

//mTextIterator_construct(mTextBuffer*, int index)

DEFINE_OBJECT(mTextIterator, mObject)


// mTextLayout
#define mTextLayoutHeader(Clss)   \
        mCommBTreeHeader(Clss)        \
        INTERFACE(ITextLayout)       \
        ITextBuffer * text_buffer;   \
        int cursor;                  \
        int cursor_x, cursor_y;      \
        int cursor_height;           \
        int text_cursor;             \
        int sel_begin;               \
        int sel_begin_x, sel_begin_y;\
        int sel_begin_height;        \
        int text_sel_begin;          \
        ITextLayoutContext* context; \
    PCLIPRGN  dirty_area;        \
    int old_height, new_height; //height changed include

#define mTextLayoutClassHeader(Clss, Super) \
        mCommBTreeClassHeader(Clss, Super)      \
        ITextLayoutHeader(ITextLayout, Clss)

DEFINE_OBJECT(mTextLayout, mCommBTree)

//mTextLayoutNode

#define mTextLayoutNodeHeader(Clss)  \
        mCommBTreeNodeHeader(Clss)       \
        int str_count;         \
        int text_count;        \
        int width, height;

#define mTextLayoutNodeClassHeader(Clss, Super)  \
        mCommBTreeNodeClassHeader(Clss, Super)

DEFINE_OBJECT(mTextLayoutNode,mCommBTreeNode)


//mTextRender

#define  mTextRenderHeader(Clss)    \
        mObjectHeader(Clss)            \
        INTERFACE(ITextRender)

#define mTextRenderClassHeader(Clss, Super)  \
        mObjectClassHeader(Clss, Super)         \
        ITextRenderHeader(ITextRender, Clss)

DEFINE_OBJECT(mTextRender,mObject)

enum {
        NCS_TXTRDR_TEXT = 0
};

ITextRender* GetTextRender(int type);

/* mTextEditor object*/
DECLARE_OBJECT(mTextEditor)


#ifndef __MINIGUI_LIB__

#define NCSCTRL_TEXTEDITOR NCSCLASSNAME("texteditor")
#endif

/* define the flag of TextEditor */
#define NCS_TEF_REPLACE_MODE   0x010000
#define NCS_TEF_HAS_PAINTED    0x020000
#define mTextEditor_isReplaceMode(self)  \
                ((self)->flags&NCS_TEF_REPLACE_MODE)
#define mTextEditor_hasPainted(self)  \
                ((self)->flags&NCS_TEF_HAS_PAINTED)


#ifdef _MGHAVE_TEXTEDITTITLE
#define TITLE_HEADER   \
        int title_idx, title_text_idx; \
        int title_x, title_y, title_last_height; \
        int title_paracount; \
        int title_last_para_text_index; \
        int title_linecount; \
        int title_last_line_text_index;

#define TITLE_CLASS_HEADER(Clss) \
        void (*setTitle)(Clss*, const char* buff, int len); \
        int  (*getTitle)(Clss*, char* buff, int max);


#else
#define TITLE_HEADER
#define TITLE_CLASS_HEADER(Clss)
#endif

//mTextEditor_construct(HWND hwnd)
#define mTextEditorHeader(Clss)      \
    mWidgetHeader(Clss)             \
    INTERFACE(ITextLayoutContext)   \
    mTextBuffer  *textBuffer;        \
    mTextLayout  *textLayout;        \
        int         visWidth, visHeight;\
        int         offX, offY;         \
    int         hardLimit;          \
    unsigned int flags;             \
        int         caretWidth;         \
        int         caretHeight;        \
    unsigned short scrollBarMode;   \
    unsigned int scrollHStep;       \
    unsigned int scrollVStep;       \
    RECT         margins;           \
    int  oldOffX, oldOffY;          \
    TITLE_HEADER


#define mTextEditorClassHeader(Clss, Super)  \
        mWidgetClassHeader(Clss, Super)     \
        ITextLayoutContextHeader(ITextLayoutContext, Clss)          \
        int (*onChar)(Clss*, int asciiCode, DWORD keyFlags);        \
        BOOL (*onFontChanged)(Clss*);                               \
        int (*getInvalidBkgnd)(Clss*, RECT *prc);                   \
        int (*onLButtonDBClk)(Clss*, int x, int y, DWORD keyFlags); \
        void (*onCSizeChanged)(Clss*, int cliWidth, int cliHeight); \
        void (*onSetFocus)(Clss*, HWND oldActiveWnd, int lParam);   \
        void (*onKillFocus)(Clss*, HWND newActiveWnd, int lParam);  \
        void (*onHScroll)(Clss*, int code, int mouseX);             \
        void (*onVScroll)(Clss*, int code, int mouseY);             \
        \
        int (*getParaText)(Clss*, int index, int start, int len, char* buffer);       \
        int (*getLineText)(Clss*, int index, int start, int len, char* buffer);       \
        int (*getParaLength)(Clss*, int index, int *startPos);      \
        int (*getParaLengthInMChar)(Clss*, int paraNo, int *startPos);                \
        int (*getLineLength)(Clss*, int lineNo, int *startPos, BOOL bMChar);          \
        int (*getParaNum)(Clss*);                                   \
        int (*setText)(Clss*, const char* text);                    \
        int (*insertText)(Clss*, const char* text, int len);        \
        int (*getText)(Clss*, char* text, int len);                 \
        int (*getTextLen)(Clss*);                                   \
        BOOL (*enableCaret)(Clss*, BOOL enable);                    \
        int (*setCaretPosByPara)(Clss*, unsigned int paraIdx, unsigned int offChar,   \
                BOOL isSel);                                        \
        int (*getCaretPosByPara)(Clss*, int *paraIdx, int *offChar, \
                int *height, BOOL isSel);                           \
        int (*setCaretPosByLine)(Clss*, unsigned int lineIdx, unsigned int offChar,   \
                BOOL isSel);                                        \
        int (*getCaretPosByLine)(Clss*, int *lineIdx, int *offChar, \
                int *height, BOOL isSel);                           \
        int (*getLineCount)(Clss*);                                 \
        void (*selectAll)(Clss*);                                   \
        int (*setSel)(Clss*, unsigned int startParaIdx, unsigned int startOffChar,    \
                unsigned int endParaIdx, unsigned int endOffChar);  \
        int (*getSel)(Clss*, char *buffer, int len);                \
        BOOL (*needLineDecorative)(Clss*);                          \
        void (*lineDecorative)(Clss*, int x, int y, int w, int h,   \
                int lineNo, HDC hdc);                               \
        TITLE_CLASS_HEADER(Clss)

#ifndef __MINIGUI_LIB__

#define NCSS_TE_READONLY  (1<<NCSS_WIDGET_SHIFT)

#define NCSS_TE_UPPERCASE (2<<NCSS_WIDGET_SHIFT)

#define NCSS_TE_LOWERCASE (4<<NCSS_WIDGET_SHIFT)

#define NCSS_TE_NOHIDESEL (8<<NCSS_WIDGET_SHIFT)

#define NCSS_TE_AUTOWRAP  (0x10<<NCSS_WIDGET_SHIFT)

#define NCSS_TE_BASELINE  (0x20<<NCSS_WIDGET_SHIFT)

#define NCSS_TE_OWNERBKGND (0x40<<NCSS_WIDGET_SHIFT)

/*
 * \def NCSS_TE_TITLE
 * \brief make the texteditor has title
 */
#define NCSS_TE_TITLE  (0x80<<NCSS_WIDGET_SHIFT)

/*
 * \def NCSS_TE_AUTOVSCROLL
 * \brief make the texteditor has a auto vert scrollbar
 *
 * \note: NCSS_TE_AUTOVSCROLL | WS_VSCROLL == AUTO
 * !(dwStyle & NCSS_TE_AUTOVSCROLL) && (dwStyle & WS_VSCROLL)  == Always
 * !(dwStyle & (NCSS_TE_AUTOVSCROLL | WS_VSCROLL)) == Nerver
 */
#define NCSS_TE_AUTOVSCROLL (0x100<<NCSS_WIDGET_SHIFT)

/*
 * \def NCSS_TE_AUTOHSCROLL
 * \brief make the texteditor has the auto horz scrollbar
 *
 * \note: NCSS_TE_AUTOHSCROLL | WS_HSCROLL == AUTO
 * !(dwStyle & NCSS_TE_AUTOHSCROLL) && (dwStyle & WS_HSCROLL)  == Always
 * !(dwStyle & (NCSS_TE_AUTOHSCROLL | WS_HSCROLL)) == Nerver
 */
#define NCSS_TE_AUTOHSCROLL (0x200<<NCSS_WIDGET_SHIFT)

#define NCSS_TE_SHIFT  (NCSS_WIDGET_SHIFT + 10)

#endif

 enum ncsTEScrollMode
 {
    NCS_TEF_SCROLLBAR_NEVER = 0,

    NCS_TEF_SCROLLBAR_AUTO,

    NCS_TEF_SCROLLBAR_ALWAYS,
};

enum mTextEditorProp
{
    NCSP_TE_READONLY = NCSP_WIDGET_MAX + 1,

    NCSP_TE_SCROLL_MODE,

    NCSP_TE_SCROLL_HSTEP,

    NCSP_TE_SCROLL_VSTEP,

        NCSP_TE_TEXTLIMIT,

    NCSP_TE_LINECOUNT,

    NCSP_TE_PARAGRAPHCOUNT,

        NCSP_TE_MARGINRECT,

    NCSP_TE_MAX,
};
#define NCSP_TE_NUMOFPARAGRAPHS NCSP_TE_PARAGRAPHCOUNT

#ifndef __MINIGUI_LIB__

enum mTextEditorNotify
{
        NCSN_TE_CONTENTCHANGED = NCSN_WIDGET_MAX + 1,

        NCSN_TE_SETFOCUS,

        NCSN_TE_KILLFOCUS,

        NCSN_TE_MAXTEXT,

        NCSN_TE_CHANGE,

        NCSN_TE_UPDATE,

        NCSN_TE_SELCHANGED,

        NCSN_TE_MAX
};

typedef struct _mTextEditorRenderer mTextEditorRenderer;
#endif


DEFINE_OBJECT(mTextEditor, mWidget)

#ifdef __MINIGUI_LIB__
void TextEditorDrawLinesDecorative(mTextEditor * self, HDC hdc, int x, int y, int w, int h);
#define mTextEditor_drawLinesDecorative TextEditorDrawLinesDecorative
#else
void mTextEditor_drawLinesDecorative(mTextEditor * self, HDC hdc, int x, int y, int w, int h);
#endif

#ifdef __cplusplus
}
#endif

#endif /*_MGNCSCTRL_TEXTEDITOR*/

#endif