src/TortoiseMerge/XSplitter.h

   1 // TortoiseGitMerge - a Diff/Patch program
   2
   3 // Copyright (C) 2006, 2011, 2020 - TortoiseSVN
   4
   5 // This program is free software; you can redistribute it and/or
   6 // modify it under the terms of the GNU General Public License
   7 // as published by the Free Software Foundation; either version 2
   8 // of the License, or (at your option) any later version.
   9
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14
  15 // You should have received a copy of the GNU General Public License
  16 // along with this program; if not, write to the Free Software Foundation,
  17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 //
  19 #pragma once
  20
  21
  22 /**
  23  * \ingroup TortoiseMerge
  24  * Extends the MFC CSplitterWnd with the functionality to
  25  * Show/Hide specific columns and rows, allows to lock
  26  * the splitter bars so the user can't move them
  27  * and also allows dynamic replacing of views with
  28  * other views.
  29  *
  30  * \par requirements
  31  * win98 or later\n
  32  * win2k or later\n
  33  * MFC\n
  34  *
  35  */
  36 class CXSplitter : public CSplitterWnd
  37 {
  38 public:
  39         CXSplitter();
  40         virtual ~CXSplitter();
  41
  42 public:
  43         /**
  44          * Checks if the splitter has its bars locked.
  45          */
  46         BOOL            IsBarLocked() const  {return m_bBarLocked;}
  47         /**
  48          * Locks/Unlocks the bar so the user can't move it.
  49          * \param bState TRUE to lock, FALSE to unlock
  50          */
  51         void            LockBar(BOOL bState=TRUE) {m_bBarLocked=bState;}
  52         /**
  53          * Shows a splitter column which was previously hidden. Don't call
  54          * this method if the column is already visible! Check it first
  55          * with IsColumnHidden()
  56          */
  57         void            ShowColumn();
  58         /**
  59          * Hides the given splitter column. Don't call this method on already hidden columns!
  60          * Check it first with IsColumnHidden()
  61          * \param nColHide The column to hide
  62          */
  63         void            HideColumn(int nColHide);
  64         /**
  65          * Checks if a given column is hidden.
  66          */
  67         BOOL            IsColumnHidden(int nCol) const {return (m_nHiddenCol == nCol);}
  68         /**
  69          * Shows a splitter row which was previously hidden. Don't call
  70          * this method if the row is already visible! Check it first
  71          * with IsRowHidden()
  72          */
  73         void            ShowRow();
  74         /**
  75          * Hides the given splitter row. Don't call this method on already hidden rows!
  76          * Check it first with IsRowHidden()
  77          * \param nRowHide The row to hide
  78          */
  79         void            HideRow(int nRowHide);
  80         /**
  81          * Checks if a given row is hidden.
  82          */
  83         BOOL            IsRowHidden(int nRow) const  {return (m_nHiddenRow == nRow);}
  84
  85         /**
  86          * Centers the splitter in the middle of the views
  87          */
  88         void            CenterSplitter();
  89
  90         int                     GetOldRowCount() const { return m_nOldRows; }
  91         int                     GetOldColCount() const { return m_nOldCols; }
  92         bool            HasOldRowSize() const { return m_pRowOldSize != nullptr; }
  93         bool            HasOldColSize() const { return m_pColOldSize != nullptr; }
  94         int                     GetOldRowSize(int index) const { return m_pRowOldSize[index]; }
  95         int                     GetOldColSize(int index) const { return m_pColOldSize[index]; }
  96
  97 protected:
  98         afx_msg void OnLButtonDblClk(UINT nFlags, CPoint point);
  99         afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
 100         afx_msg void OnLButtonUp(UINT nFlags, CPoint point);
 101         afx_msg void OnMouseMove(UINT nFlags, CPoint point);
 102         afx_msg BOOL OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message);
 103         DECLARE_MESSAGE_MAP()
 104
 105         void            CopyRowAndColInfo();
 106         void            OnDrawSplitter(CDC* pDC, ESplitType nType, const CRect& rect) override;
 107 private:
 108         BOOL            m_bBarLocked;   ///< is the splitter bar locked?
 109         int                     m_nHiddenCol;   ///< Index of the hidden column.
 110         int                     m_nHiddenRow;   ///< Index of the hidden row
 111         int *           m_pColOldSize;  ///< the current size of the last splitter positioning
 112         int *           m_pRowOldSize;  ///< the current size of the last splitter positioning
 113         int                     m_nOldCols;
 114         int                     m_nOldRows;
 115 };