133 lines
5.2 KiB
C++
133 lines
5.2 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/generic/gridsel.h
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// Purpose: wxGridSelection
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// Author: Stefan Neis
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// Modified by:
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// Created: 20/02/2000
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// Copyright: (c) Stefan Neis
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_GENERIC_GRIDSEL_H_
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#define _WX_GENERIC_GRIDSEL_H_
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#include "wx/defs.h"
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#if wxUSE_GRID
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#include "wx/grid.h"
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#include "wx/vector.h"
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typedef wxVector<wxGridBlockCoords> wxVectorGridBlockCoords;
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class WXDLLIMPEXP_CORE wxGridSelection
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{
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public:
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wxGridSelection(wxGrid *grid,
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wxGrid::wxGridSelectionModes sel = wxGrid::wxGridSelectCells);
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bool IsSelection();
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bool IsInSelection(int row, int col);
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bool IsInSelection(const wxGridCellCoords& coords)
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{
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return IsInSelection(coords.GetRow(), coords.GetCol());
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}
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void SetSelectionMode(wxGrid::wxGridSelectionModes selmode);
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wxGrid::wxGridSelectionModes GetSelectionMode() { return m_selectionMode; }
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void SelectRow(int row, const wxKeyboardState& kbd = wxKeyboardState());
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void SelectCol(int col, const wxKeyboardState& kbd = wxKeyboardState());
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void SelectBlock(int topRow, int leftCol,
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int bottomRow, int rightCol,
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const wxKeyboardState& kbd = wxKeyboardState(),
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bool sendEvent = true );
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void SelectBlock(const wxGridCellCoords& topLeft,
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const wxGridCellCoords& bottomRight,
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const wxKeyboardState& kbd = wxKeyboardState(),
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bool sendEvent = true )
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{
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SelectBlock(topLeft.GetRow(), topLeft.GetCol(),
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bottomRight.GetRow(), bottomRight.GetCol(),
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kbd, sendEvent);
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}
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void DeselectBlock(const wxGridBlockCoords& block,
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const wxKeyboardState& kbd = wxKeyboardState(),
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bool sendEvent = true );
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void ClearSelection();
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void UpdateRows( size_t pos, int numRows );
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void UpdateCols( size_t pos, int numCols );
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// Extend (or shrink) the current selection block or select a new one.
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// blockStart and blockEnd specifies the opposite corners of the currently
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// edited selection block. In almost all cases blockStart equals to
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// wxGrid::m_currentCellCoords (the exception is when we scrolled out from
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// the top of the grid and select a column or scrolled right and select
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// a row: in this case the lowest visible row/column will be set as
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// current, not the first one). If the row or the column component of
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// blockEnd parametr has value of -1, it means that the corresponding
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// component of the current block should not be changed.
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// Return true if the current block was actually changed or created.
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bool ExtendOrCreateCurrentBlock(const wxGridCellCoords& blockStart,
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const wxGridCellCoords& blockEnd,
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const wxKeyboardState& kbd);
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// Return the row of the current selection block if it exists and we can
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// edit the block vertically. Otherwise return -1.
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int GetCurrentBlockCornerRow() const;
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// Return the column of the current selection block if it exists and we can
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// edit the block horizontally. Otherwise return -1.
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int GetCurrentBlockCornerCol() const;
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wxGridCellCoordsArray GetCellSelection() const;
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wxGridCellCoordsArray GetBlockSelectionTopLeft() const;
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wxGridCellCoordsArray GetBlockSelectionBottomRight() const;
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wxArrayInt GetRowSelection() const;
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wxArrayInt GetColSelection() const;
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wxVectorGridBlockCoords& GetBlocks() { return m_selection; }
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private:
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int BlockContain( int topRow1, int leftCol1,
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int bottomRow1, int rightCol1,
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int topRow2, int leftCol2,
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int bottomRow2, int rightCol2 );
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// returns 1, if Block1 contains Block2,
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// -1, if Block2 contains Block1,
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// 0, otherwise
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void SelectBlockNoEvent(const wxGridBlockCoords& block)
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{
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SelectBlock(block.GetTopRow(), block.GetLeftCol(),
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block.GetBottomRow(), block.GetRightCol(),
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wxKeyboardState(), false);
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}
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// Really select the block and don't check for the current selection mode.
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void Select(const wxGridBlockCoords& block,
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const wxKeyboardState& kbd, bool sendEvent);
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// If the new block containing any of the passed blocks, remove them.
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// if a new block contained in the passed blockc, return.
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// Otherwise add the new block to the blocks array.
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void MergeOrAddBlock(wxVectorGridBlockCoords& blocks,
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const wxGridBlockCoords& block);
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// The vector of selection blocks. We expect that the users select
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// relatively small amount of blocks. K-D tree can be used to speed up
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// searching speed.
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wxVectorGridBlockCoords m_selection;
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wxGrid *m_grid;
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wxGrid::wxGridSelectionModes m_selectionMode;
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wxDECLARE_NO_COPY_CLASS(wxGridSelection);
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};
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#endif // wxUSE_GRID
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#endif // _WX_GENERIC_GRIDSEL_H_
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