ap_Dialog_Paragraph.h

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/* -*- mode: C++; tab-width: 4; c-basic-offset: 4; -*- */

/* AbiWord
 * Copyright (C) 1998-2000 AbiSource, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 */

#ifndef AP_DIALOG_PARAGRAPH_H
#define AP_DIALOG_PARAGRAPH_H

#include "xap_Frame.h"
#include "xap_Dialog.h"
#include "xav_View.h"
#include "xap_CustomWidget.h"

class XAP_Frame;
class AP_Preview_Paragraph;

#define SPIN_BUF_TEXT_SIZE  20

class ABI_EXPORT AP_Dialog_Paragraph : public XAP_Dialog_NonPersistent
{
    // the preview's block classes want to use some of our protected enums
    // below for similar alignment, etc.
    friend class AP_Preview_Paragraph;
    friend class AP_Preview_Paragraph_Block;

 public:

    typedef enum { align_UNDEF = 0, align_LEFT, align_CENTERED, align_RIGHT, align_JUSTIFIED } tAlignState;
    typedef enum { indent_UNDEF = 0, indent_NONE, indent_FIRSTLINE, indent_HANGING } tIndentState;
    typedef enum { spacing_UNDEF = 0, spacing_SINGLE, spacing_ONEANDHALF, spacing_DOUBLE,
                   spacing_ATLEAST, spacing_EXACTLY, spacing_MULTIPLE } tSpacingState;
    /* these are public because we must be able to identify widgets out this class (NSWindowController)*/
    typedef enum { id_MENU_ALIGNMENT = 0, id_SPIN_LEFT_INDENT,
                   id_SPIN_RIGHT_INDENT, id_MENU_SPECIAL_INDENT,
                   id_SPIN_SPECIAL_INDENT, id_SPIN_BEFORE_SPACING,
                   id_SPIN_AFTER_SPACING, id_MENU_SPECIAL_SPACING,
                   id_SPIN_SPECIAL_SPACING, id_CHECK_WIDOW_ORPHAN,
                   id_CHECK_KEEP_LINES, id_CHECK_PAGE_BREAK,
                   id_CHECK_SUPPRESS, id_CHECK_NO_HYPHENATE,
                   id_CHECK_KEEP_NEXT,
                   id_CHECK_DOMDIRECTION
                   } tControl;

    AP_Dialog_Paragraph(XAP_DialogFactory * pDlgFactory, XAP_Dialog_Id id);
    virtual ~AP_Dialog_Paragraph(void);

    virtual void    runModal(XAP_Frame * pFrame) = 0;

    // answer from dialog
    typedef enum { a_OK, a_CANCEL, a_TABS } tAnswer;

    bool setDialogData(const gchar ** pProps);
    bool getDialogData(const gchar **& pProps);

    // expects a width in paper units.
    void setMaxWidth(UT_sint32 width) { m_iMaxWidth = UT_inchesFromPaperUnits(width); }

    AP_Dialog_Paragraph::tAnswer    getAnswer(void) const;

    // must be public, otherwise MSVC bails out
    // enumerated types for drop-down lists (option menus)
    typedef enum { check_FALSE = 0, check_TRUE, check_INDETERMINATE } tCheckState;

    typedef enum { op_INIT = 0, op_UICHANGE, op_SYNC } tOperation;

 protected:

    // handle the XP-job of attaching something to our m_paragraphPreview
    void _createPreviewFromGC(GR_Graphics * gc, UT_uint32 width, UT_uint32 height);

    void                _setMenuItemValue(tControl item, UT_sint32 value, tOperation = op_UICHANGE);
    UT_sint32           _getMenuItemValue(tControl item);
    void                _setCheckItemValue(tControl item, tCheckState value, tOperation = op_UICHANGE);
    tCheckState         _getCheckItemValue(tControl item);
    void                _setSpinItemValue(tControl item, const gchar * value, tOperation = op_UICHANGE);
    const gchar *   _getSpinItemValue(tControl item);
    const gchar *   _makeAbsolute(const gchar * value);

    void                _doSpin(tControl edit, UT_sint32 amt);
    virtual void        _syncControls(tControl changed, bool bAll = false);

    bool                _wasChanged(tControl item);

    // final dialog answer
    tAnswer                 m_answer;

    gchar *             m_pageLeftMargin;
    gchar *             m_pageRightMargin;

    // store a pointer to our preview control
    AP_Preview_Paragraph *  m_paragraphPreview;

    XAP_Frame *             m_pFrame;

private:
    class ABI_EXPORT sControlData
    {
    private:
        UT_sint32       m_siData;
        tCheckState     m_csData;
        gchar *     m_szData;

        bool            m_bChanged;

    public:
        sControlData (UT_sint32 data);
        sControlData (tCheckState data);
        sControlData (gchar * data = 0); // default is empty string

        sControlData (const sControlData & rhs);

        ~sControlData ();

        sControlData & operator= (const sControlData & rhs);

        inline bool getData (UT_sint32 & data) const
        {
            data = m_siData;
            return true;
        }
        inline bool getData (tCheckState & data) const
        {
            data = m_csData;
            return true;
        }
        inline bool getData (const gchar *& data) const
        {
            data = m_szData;
            return (data != NULL);
        }

        inline bool setData (UT_sint32 data)
        {
            m_siData = data;
            return true;
        }
        inline bool setData (tCheckState data)
        {
            m_csData = data;
            return true;
        }
        bool setData (const gchar * data);

        inline bool changed () const { return m_bChanged; }
        inline void changed (bool c) { m_bChanged = c; }
    };

    UT_GenericVector<sControlData *> m_vecProperties; // properties stored as a vector

    void                    _addPropertyItem (tControl index, const sControlData & control_data);
    inline sControlData *   _getPropertyItem (tControl index) const
    {
        return m_vecProperties.getNthItem (static_cast<UT_uint32>(index));
    }

    // which dimension system we're using as "native" for this document
    UT_Dimension            m_dim;

    // current column width, in inches.
    double              m_iMaxWidth;
};

#endif /* AP_DIALOG_PARAGRAPH_H */