Source: toresultview.h

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    /*****
     *
     * TOra - An Oracle Toolkit for DBA's and developers
     * Copyright (C) 2003-2005 Quest Software, Inc
     * Portions Copyright (C) 2005 Other Contributors
     *
     * 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;  only version 2 of
     * the License is valid for this program.
     *
     * 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.
     *
     *      As a special exception, you have permission to link this program
     *      with the Oracle Client libraries and distribute executables, as long
     *      as you follow the requirements of the GNU GPL in regard to all of the
     *      software in the executable aside from Oracle client libraries.
     *
     *      Specifically you are not permitted to link this program with the
     *      Qt/UNIX, Qt/Windows or Qt Non Commercial products of TrollTech.
     *      And you are not permitted to distribute binaries compiled against
     *      these libraries without written consent from Quest Software, Inc.
     *      Observe that this does not disallow linking to the Qt Free Edition.
     *
     *      You may link this product with any GPL'd Qt library such as Qt/Free
     *
     * All trademarks belong to their respective owners.
     *
     *****/

    #ifndef TORESULTVIEW_H
    #define TORESULTVIEW_H

    #include "toeditwidget.h"
    #include "toresult.h"
    #include "toresultlistformatui.h"

    #include

    #include

    class QListViewItem;
    class QPopupMenu;
    class TOPrinter;
    class toListTip;
    class toQuery;
    class toResultCols;
    class toResultView;
    class toSQL;
    class toSearchReplace;

    /** Baseclass for filters to apply to the @ref toResultView to filter out
     * rows that you don't want to add as items to the list.
     */
    class toResultFilter {
    public:
      toResultFilter()
      { }
      virtual ~toResultFilter()
      { }
      virtual void startingQuery(void)
      { }
      /** This function can inspect the item to be added and decide if it is
       * valid for adding or not.
       * @param item Item to inspect.
       * @return If false is returned the item isn't added.
       */
      virtual bool check(const QListViewItem *item) = 0;
      /** Create a copy of this filter.
       * @return A newly created copy of this filter.
       */
      virtual toResultFilter *clone(void) = 0;
      /** Export data to a map.
       * @param data A map that can be used to recreate the data of a chart.
       * @param prefix Prefix to add to the map.
       */
      virtual void exportData(std::map &data,const QCString &prefix);
      /** Import data
       * @param data Data to read from a map.
       * @param prefix Prefix to read data from.
       */
      virtual void importData(std::map &data,const QCString &prefix);
    };

    /** An item to display in a toListView or toResultView. They differ from normal
     * QListViewItems in that they can have a tooltip and actually contain more text
     * than is displayed in the cell of the listview.
     */
    class toResultViewItem : public QListViewItem {
      struct keyData {
        QString Data;
        QString KeyAsc;
        QString KeyDesc;
        int Width;
        enum { String,Number } Type;
      };
      int ColumnCount;
      keyData *ColumnData;
      QString firstText(int col) const;
    protected:
      virtual int realWidth(const QFontMetrics &fm, const QListView *top, int column,const QString &txt) const;
    public:
      /** Create a new item.
       * @param parent Parent list view.
       * @param after Insert after this item.
       * @param buffer String to set as first column
       */
      toResultViewItem(QListView *parent,QListViewItem *after,const QString &buf=QString::null)
        : QListViewItem(parent,after,QString::null)
      { ColumnData=NULL; ColumnCount=0; if (buf) setText(0,buf); }
      /** Create a new item.
       * @param parent Parent to this item.
       * @param after Insert after this item.
       * @param buffer String to set as first column
       */
      toResultViewItem(QListViewItem *parent,QListViewItem *after,const QString &buf=QString::null)
        : QListViewItem(parent,after,QString::null)
      { ColumnData=NULL; ColumnCount=0; if (buf) setText(0,buf); }
      /** Reimplemented for internal reasons.
       */
      virtual ~toResultViewItem()
      { delete[] ColumnData; }
      /** Reimplemented for internal reasons.
       */
      virtual void setText (int col,const QString &txt);
      /** Set from database.
       */
      virtual void setText (int col,const toQValue &val);
      /** Reimplemented for internal reasons.
       */
      virtual void paintCell(QPainter * p,const QColorGroup & cg,int column,int width,int align);
      /** Reimplemented for internal reasons.
       */
      virtual QString text(int col) const;
      /** String to sort the data on. This is reimplemented so that numbers are sorted as numbers
       * and not as strings.
       * @param col Column
       * @param asc Wether to sort ascending or not.
       */
      virtual QString key(int col,bool asc) const
      { if (col>=ColumnCount) return QString::null; return asc?ColumnData[col].KeyAsc:ColumnData[col].KeyDesc; }
      /** Reimplemented for internal reasons.
       */
      virtual int width(const QFontMetrics &, const QListView *, int col) const
      { if (col>=ColumnCount) return 0; return ColumnData[col].Width; }
      /** Get all text for this item. This is used for copying, drag & drop and memo editing etc.
       * @param col Column.
       * @return All of the text.
       */
      virtual QString allText(int col) const
      { if (col>=ColumnCount) return QString::null; return ColumnData[col].Data; }
      /** Get the text to be displayed as tooltip for this item.
       * @param col Column.
       * @return The text to display as tooltip.
       */
      virtual QString tooltip(int col) const
      { return allText(col); }
    };

    /** This item expands the height to commodate all lines in the input buffer.
     */
    class toResultViewMLine : public toResultViewItem {
    private:
      /** Number of lines in the largest row.
       */
      int Lines;
    protected:
      virtual int realWidth(const QFontMetrics &fm, const QListView *top, int column,const QString &txt) const;
    public:
      /** Create a new item.
       * @param parent Parent list view.
       * @param after Insert after this item.
       * @param buffer String to set as first column
       */
      toResultViewMLine(QListView *parent,QListViewItem *after,const QString &buf=QString::null)
        : toResultViewItem(parent,after,QString::null)
      { Lines=1; if (buf) setText(0,buf); }
      /** Create a new item.
       * @param parent Parent to this item.
       * @param after Insert after this item.
       * @param buffer String to set as first column
       */
      toResultViewMLine(QListViewItem *parent,QListViewItem *after,const QString &buf=QString::null)
        : toResultViewItem(parent,after,QString::null)
      { Lines=1; if (buf) setText(0,buf); }
      /** Reimplemented for internal reasons.
       */
      virtual void setText (int,const QString &);
      /** Set from database.
       */
      virtual void setText (int col,const toQValue &val);
      /** Reimplemented for internal reasons.
       */
      virtual void setup(void);
      /** Reimplemented for internal reasons.
       */
      virtual QString text(int col) const
      { return toResultViewItem::allText(col); }
      /** Reimplemented for internal reasons.
       */
      virtual void paintCell (QPainter *pnt,const QColorGroup & cg,int column,int width,int alignment);
    };

    /** An item to display in a toListView or toResultView. They differ from normal
     * QListViewItems in that they can have a tooltip and actually contain more text
     * than is displayed in the cell of the listview.
     */
    class toResultViewCheck : public QCheckListItem {
      struct keyData {
        QString Data;
        QString KeyAsc;
        QString KeyDesc;
        int Width;
        enum { String,Number } Type;
      };
      int ColumnCount;
      keyData *ColumnData;
    protected:
      virtual int realWidth(const QFontMetrics &fm, const QListView *top, int column,const QString &txt) const;
      QString firstText(int col) const;
    public:
      /** Create a new item.
       * @param parent Parent list view.
       * @param text Text of first column.
       * @param type Type of check on this item.
       */
      toResultViewCheck(QListView *parent,const QString &text,QCheckListItem::Type type=Controller)
        : QCheckListItem(parent,QString::null,type)
      { ColumnData=NULL; ColumnCount=0; if (!text.isNull()) setText(0,text); }
      /** Create a new item.
       * @param parent Parent item.
       * @param text Text of first column.
       * @param type Type of check on this item.
       */
      toResultViewCheck(QListViewItem *parent,const QString &text,QCheckListItem::Type type=Controller)
        : QCheckListItem(parent,QString::null,type)
      { ColumnData=NULL; ColumnCount=0; if (!text.isNull()) setText(0,text); }
      /** Create a new item.
       * @param parent Parent list view.
       * @param after After last item.
       * @param text Text of first column.
       * @param type Type of check on this item.
       */
      toResultViewCheck(QListView *parent,QListViewItem *after,const QString &text,QCheckListItem::Type type=Controller);
      /** Create a new item.
       * @param parent Parent item.
       * @param after After last item.
       * @param text Text of first column.
       * @param type Type of check on this item.
       */
      toResultViewCheck(QListViewItem *parent,QListViewItem *after,const QString &text,QCheckListItem::Type type=Controller);
      /** Reimplemented for internal reasons.
       */
      virtual ~toResultViewCheck()
      { delete[] ColumnData; }
      /** Reimplemented for internal reasons.
       */
      virtual void setText (int col,const QString &txt);
      /** Set from database.
       */
      virtual void setText (int col,const toQValue &val);
      /** Reimplemented for internal reasons.
       */
      virtual void paintCell(QPainter * p,const QColorGroup & cg,int column,int width,int align);
      /** Reimplemented for internal reasons.
       */
      virtual QString text(int col) const;
      /** String to sort the data on. This is reimplemented so that numbers are sorted as numbers
       * and not as strings.
       * @param col Column
       * @param asc Wether to sort ascending or not.
       */
      /** String to sort the data on. This is reimplemented so that numbers are sorted as numbers
       * and not as strings.
       * @param col Column
       * @param asc Wether to sort ascending or not.
       */
      virtual QString key(int col,bool asc) const
      { if (col>=ColumnCount) return QString::null; return asc?ColumnData[col].KeyAsc:ColumnData[col].KeyDesc; }
      /** Reimplemented for internal reasons.
       */
      virtual int width(const QFontMetrics &, const QListView *, int col) const
      { if (col>=ColumnCount) return 0; return ColumnData[col].Width; }
      /** Get all text for this item. This is used for copying, drag & drop and memo editing etc.
       * @param col Column.
       * @return All of the text.
       */
      virtual QString allText(int col) const
      { if (col>=ColumnCount) return QString::null; return ColumnData[col].Data; }
      /** Get the text to be displayed as tooltip for this item.
       * @param col Column.
       * @return The text to display as tooltip.
       */
      virtual QString tooltip(int col) const
      { return allText(col); }
    };

    /** This item expands the height to commodate all lines in the input buffer.
     */
    class toResultViewMLCheck : public toResultViewCheck {
    private:
      /** Number of lines in the largest row.
       */
      int Lines;
    protected:
      virtual int realWidth(const QFontMetrics &fm, const QListView *top, int column,const QString &txt) const;
    public:
      /** Create a new item.
       * @param parent Parent list view.
       * @param text Text of first column.
       * @param type Type of check on this item.
       */
      toResultViewMLCheck(QListView *parent,const QString &text,QCheckListItem::Type type=Controller)
        : toResultViewCheck(parent,QString::null,type)
      { Lines=1; if (!text.isNull()) setText(0,text); }
      /** Create a new item.
       * @param parent Parent item.
       * @param text Text of first column.
       * @param type Type of check on this item.
       */
      toResultViewMLCheck(QListViewItem *parent,const QString &text,QCheckListItem::Type type=Controller)
        : toResultViewCheck(parent,QString::null,type)
      { Lines=1; if (!text.isNull()) setText(0,text); }
      /** Reimplemented for internal reasons.
       */
      virtual void setup(void);
      /** Reimplemented for internal reasons.
       */
      virtual void setText (int,const QString &);
      /** Set from database.
       */
      virtual void setText (int col,const toQValue &val);
      /** Reimplemented for internal reasons.
       */
      virtual QString text(int col) const
      { return toResultViewCheck::allText(col); }
      /** Reimplemented for internal reasons.
       */
      virtual void paintCell (QPainter *pnt,const QColorGroup & cg,int column,int width,int alignment);
    };

    /**
     * The TOra implementation of a listview which offers a few extra goodies to the baseclass.
     * First of all tooltip which can display contents that doesn't fit in the list, printing,
     * integration into toMain with Edit menu etc, drag & drop, export as file, display item
     * as memo and context menu.
     */
    class toListView : public QListView,public toEditWidget {
      Q_OBJECT

      bool FirstSearch;

      /** Name of this list, used primarily when printing. Also used to be able to edit
       * SQL displayed in @ref toResultView.
       */
      QString Name;
      /** Used to display tip on fields.
       */
      toListTip *AllTip;
      /** Item selected when popup menu displayed.
       */
      QListViewItem *MenuItem;
      /** Column of item selected when popup menu displayed.
       */
      int MenuColumn;
      /** Popup menu if available.
       */
      QPopupMenu *Menu;
      /** Last move, used to determine if drag has started.
       */
      QPoint LastMove;

      /** Reimplemented for internal reasons.
       */
      virtual void contentsMouseDoubleClickEvent (QMouseEvent *e);
      /** Reimplemented for internal reasons.
       */
      virtual void contentsMousePressEvent(QMouseEvent *e);
      /** Reimplemented for internal reasons.
       */
      virtual void contentsMouseReleaseEvent(QMouseEvent *e);
      /** Reimplemented for internal reasons.
       */
      virtual void contentsMouseMoveEvent (QMouseEvent *e);

      /** Used to print one page of the list.
       * @param printer Printer to print to.
       * @param painter Painter to print page to.
       * @param top Item at top of page.
       * @param column Column to start printing at. Will be changed to where you are when done.
       * @param level The indentation level of the top item.
       * @param pageNo Page number.
       * @param paint If just testing to determine how many pages are needed set this to false.
       * @return The next item to print to (Pass as top to this function).
       */
      virtual QListViewItem *printPage(TOPrinter *printer,QPainter *painter,QListViewItem *top,
    				   int &column,int &level,int pageNo,bool paint=true);
      int exportType(QString &separator,QString &delimiter);
    public:
      /** Create new list view.
       * @param parent Parent of list.
       * @param name Name of list.
       * @param f Widget flags.
       */
      toListView(QWidget *parent,const char *name=NULL,WFlags f=0);
      virtual ~toListView();

      /** Get SQL name of list.
       */
      virtual QString sqlName(void)
      { return Name; }
      /** Set SQL name of list.
       */
      virtual void setSQLName(const QString &name)
      { Name=name; }
      /** Get the whole text for the item and column selected when menu was poped up.
       */
      QString menuText(void);

      /** Print this list
       */
      virtual void editPrint(void);
      /** Reimplemented for internal reasons.
       */
      virtual void focusInEvent (QFocusEvent *e);
      /** The string to be displayed in the middle of the footer when printing.
       * @return String to be placed in middle.
       */
      virtual QString middleString()
      { return QString::null; }
      /** Adds option to add menues to the popup menu before it is displayed.
       * @param menu Menu to add entries to.
       */
      virtual void addMenues(QPopupMenu *menu);
      /** Export list as a string.
       * @param includeHeader Include header.
       * @param onlySelection Only include selection.
       * @param type Format of exported list.
       * @param separator Separator for CSV format.
       * @param delimiter Delimiter for CSV format.
       */
      virtual QString exportAsText(bool includeHeader,bool onlySelection,int type=-1,const QString &separator=";",const QString &delimiter="\"");
      /** Export list as file.
       */
      virtual bool editSave(bool ask);

      /** Select all contents.
       */
      virtual void editSelectAll(void)
      { selectAll(true); }

      /** Move to top of data
       */
      virtual void searchTop(void)
      { if (firstChild()) setCurrentItem(firstChild()); FirstSearch=true; }
      /** Search for next entry
       * @return True if found, should select the found text.
       */
      virtual bool searchNext(toSearchReplace *search);
      /** Check if data can be modified by search
       * @param all If true can replace all, otherwise can replace right now.
       */
      virtual bool searchCanReplace(bool all);

      /** Export data to a map.
       * @param data A map that can be used to recreate the data of a chart.
       * @param prefix Prefix to add to the map.
       */
      virtual void exportData(std::map &data,const QCString &prefix);
      /** Import data
       * @param data Data to read from a map.
       * @param prefix Prefix to read data from.
       */
      virtual void importData(std::map &data,const QCString &prefix);
      /** Create transposed copy of list
       * @return Pointer to newly allocated transposed listview.
       */
      virtual toListView *copyTransposed(void);
    signals:
      /** Called before the menu is displayed so that you can add items to it before it is shown.
       * @param menu Pointer to the menu about to be shown.
       */
      void displayMenu(QPopupMenu *menu);
    public slots:
      /** set the popup menu --> see displayMenu()
       * @param item Item to display.
       */
      virtual void setDisplayMenu(QPopupMenu *item);
      /** Display the menu at the given point and column.
       * @param item Item to display.
       * @param pnt Point to display menu at.
       * @param col Column to display menu for.
       */
      virtual void displayMenu(QListViewItem *item,const QPoint &pnt,int col);
      /** Display memo of selected menu column
       */
      virtual void displayMemo(void);
    protected slots:
      /** Callback when menu is selected. If you override this make sure you
       * call the parents function when you have parsed your entries.
       * @param id ID of the menu item selected.
       */
      virtual void menuCallback(int id);
    };

    /**
     * This class defines a list which displays the result of a query.
     *
     * One special thing to know about this class is that columns at the end in which the
     * description start with a '-' characters are not displayed.
     */

    class toResultView : public toListView, public toResult {
      Q_OBJECT

      int SortColumn;
      bool SortAscending;
      bool SortConnected;

      /** Reimplemented for internal reasons.
       */
      virtual void keyPressEvent (QKeyEvent * e);
    protected:
      /** Connection to execute statement on.
       */
      toQuery *Query;
      /** Last added item.
       */
      QListViewItem *LastItem;

      /** Number of rows in list.
       */
      int RowNumber;
      /** If column names are to be made more readable.
       */
      bool ReadableColumns;
      /** Wether to display first number column or not.
       */
      bool NumberColumn;
      /** If all the available data should be read at once.
       */
      bool ReadAll;
      /** Input filter if any.
       */
      toResultFilter *Filter;

      /** Setup the list.
       * @param readable Wether to display first number column or not.
       * @param dispCol Wether to display first number column or not.
       */
      void setup(bool readable,bool dispCol);

      /** Check if end of query is detected yet or not.
       */
      virtual bool eof(void);

    public:
      /** Create list.
       * @param readable Indicate if columns are to be made more readable. This means that the
       * descriptions are capitalised and '_' are converted to ' '.
       * @param numCol If number column is to be displayed.
       * @param parent Parent of list.
       * @param name Name of widget.
       * @param f Widget flags.
       */
      toResultView(bool readable,bool numCol,QWidget *parent,const char *name=NULL,WFlags f=0);
      /** Create list. The columns are not readable and the number column is displayed.
       * @param parent Parent of list.
       * @param name Name of widget.
       * @param f Widget flags.
       */
      toResultView(QWidget *parent,const char *name=NULL,WFlags f=0);
      ~toResultView();

      /** Set the read all flag.
       * @param all New value of flag.
       */
      void setReadAll(bool all)
      { ReadAll=all;}

      /** Get read all flag
       * @return Value of read all flag.
       */
      virtual void editReadAll(void);

      /** Get the number of columns in query.
       * @return Columns in query.
       */
      int queryColumns() const;

      /** Get the query used to execute this.
       */
      toQuery *query()
      { return Query; }

      /** Set a filter to this list.
       * @param filter The new filter or NULL if no filter is to be used.
       */
      void setFilter(toResultFilter *filter)
      { Filter=filter; }
      /** Get the current filter.
       * @return Current filter or NULL if no filter.
       */
      toResultFilter *filter(void)
      { return Filter; }

      /** Get number column flag.
       * @return Wether or not the numbercolumn is displayed.
       */
      bool numberColumn() const
      { return NumberColumn; }
      /** Set number column flag. Don't change this while a query is running. Observe
       * that not all descendants of this class support changing this on the fly. The base
       * class and @ref toResultLong does though.
       * @param val New value of number column.
       */
      void setNumberColumn(bool val)
      { NumberColumn=val; }

      /** Get readable column flag.
       * @return Wether or not the readable column names.
       */
      bool readableColumn() const
      { return ReadableColumns; }
      /** Set readable column flag.
       */
      void setReadableColumns(bool val)
      { ReadableColumns=val; }

      /** Create a new item in this list. Can be used if a special kind of item is wanted
       * in the list. The rest of the columns will be filled with setText.
       * @param last Where to insert the item.
       * @param str String to set first column to.
       * @return Allocated item.
       */
      virtual QListViewItem *createItem(QListViewItem *last,const QString &str);

      /** Reimplemented for internal reasons.
       */
      virtual void query(const QString &sql,const toQList ¶m);

      /** Get SQL name of list.
       */
      virtual QString sqlName(void)
      { return toListView::sqlName(); }
      /** Set SQL name of list.
       */
      virtual void setSQLName(const QString &name)
      { toListView::setSQLName(name); }

      // Why are these needed?
    #if 1
      /** Set the SQL statement of this list
       * @param sql String containing statement.
       */
      void setSQL(const QString &sql)
      { toResult::setSQL(sql); }
      /** Set the SQL statement of this list. This will also affect @ref Name.
       * @param sql SQL containing statement.
       */
      void setSQL(const toSQL &sql)
      { toResult::setSQL(sql); }
      /** Set new SQL and run query.
       * @param sql New sql.
       * @see setSQL
       */
      void query(const QString &sql)
      { toResult::query(sql); }
      /** Set new SQL and run query.
       * @param sql New sql.
       * @see setSQL
       */
      void query(const toSQL &sql)
      { toResult::query(sql); }
      /** Set new SQL and run query.
       * @param sql New sql.
       * @see setSQL
       */
      void query(const toSQL &sql,toQList &par)
      { toResult::query(sql,par); }
    #endif

      /** Reimplemented for internal reasons.
       */
      virtual void editPrint(void)
      { editReadAll(); toListView::editPrint(); }
      /** Reimplemented for internal reasons.
       */
      virtual QString middleString();

      /** Reimplemented for internal reasons.
       */
      virtual void addMenues(QPopupMenu *);
      /** Reimplemented for internal reasons.
       */
      virtual void setSorting(int col,bool asc=true);
      /** Reimplemented for internal reasons.
       */
      virtual int sortColumn() const
      { return SortColumn; }
    public slots:
      /** Reimplemented for internal reasons.
       */
      virtual void refresh(void);
      /** Reimplemented for internal reasons.
       */
      virtual void changeParams(const QString &Param1)
      { toResult::changeParams(Param1); }
      /** Reimplemented For internal reasons.
       */
      virtual void changeParams(const QString &Param1,const QString &Param2)
      { toResult::changeParams(Param1,Param2); }
      /** Reimplemented for internal reasons.
       */
      virtual void changeParams(const QString &Param1,const QString &Param2,const QString &Param3)
      { toResult::changeParams(Param1,Param2,Param3); }
      /** Try to add an item to the list if available.
       */
      virtual void addItem(void);
      /** Handle any connection by default
       */
      virtual bool canHandle(toConnection &)
      { return true; }
    private slots:
      void headingClicked(int col);
      void checkHeading(void);
    protected slots:
      /** Reimplemented for internal reasons.
       */
      virtual void menuCallback(int);
    };

    /***
     * Used internally by toListView.
     * @internal
     */

    class toResultListFormat : public toResultListFormatUI {
      Q_OBJECT
    public:
      toResultListFormat(QWidget *parent,const char *name);
      void saveDefault(void);
    public slots:
      virtual void formatChanged(int pos);
    };

    #endif

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