From: Michael Bedward Date: Fri, 11 Feb 2000 04:09:20 +0000 (+0000) Subject: Added facility to resize rows and cols by dragging grid lines. X-Git-Url: https://git.saurik.com/wxWidgets.git/commitdiff_plain/6d004f675d49a37d5e8a822dd845e5362015a573?ds=sidebyside Added facility to resize rows and cols by dragging grid lines. Fixed bug where row col resize events were sent twice. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5959 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775 --- diff --git a/include/wx/generic/grid.h b/include/wx/generic/grid.h index 65ed902b90..2a31656087 100644 --- a/include/wx/generic/grid.h +++ b/include/wx/generic/grid.h @@ -458,6 +458,8 @@ public: void ProcessGridCellMouseEvent( wxMouseEvent& event ); bool ProcessTableMessage( wxGridTableMessage& ); + void DoEndDragResizeRow(); + void DoEndDragResizeCol(); wxGridTableBase * GetTable() const { return m_table; } void SetTable( wxGridTableBase *table ) { m_table = table; } diff --git a/src/generic/grid.cpp b/src/generic/grid.cpp index dd097a54f5..006465a559 100644 --- a/src/generic/grid.cpp +++ b/src/generic/grid.cpp @@ -33,7 +33,9 @@ #include "wx/log.h" #endif +// this include needs to be outside precomp for BCC #include "wx/textfile.h" + #include "wx/generic/grid.h" // ---------------------------------------------------------------------------- @@ -1787,9 +1789,18 @@ void wxGrid::ProcessRowLabelMouseEvent( wxMouseEvent& event ) m_isDragging = FALSE; + // ------------ Entering or leaving the window + // + if ( event.Entering() || event.Leaving() ) + { + m_cursorMode = WXGRID_CURSOR_SELECT_CELL; + m_rowLabelWin->SetCursor( *wxSTANDARD_CURSOR ); + } + + // ------------ Left button pressed // - if ( event.LeftDown() ) + else if ( event.LeftDown() ) { // don't send a label click event for a hit on the // edge of the row label - this is probably the user @@ -1833,43 +1844,12 @@ void wxGrid::ProcessRowLabelMouseEvent( wxMouseEvent& event ) if ( m_cursorMode == WXGRID_CURSOR_RESIZE_ROW ) { m_rowLabelWin->ReleaseMouse(); + DoEndDragResizeRow(); - if ( m_dragLastPos >= 0 ) - { - // erase the last line and resize the row - // - int cw, ch, left, dummy; - m_gridWin->GetClientSize( &cw, &ch ); - CalcUnscrolledPosition( 0, 0, &left, &dummy ); - - wxClientDC dc( m_gridWin ); - PrepareDC( dc ); - dc.SetLogicalFunction( wxINVERT ); - dc.DrawLine( left, m_dragLastPos, left+cw, m_dragLastPos ); - HideCellEditControl(); - - int rowTop = m_rowBottoms[m_dragRowOrCol] - m_rowHeights[m_dragRowOrCol]; - SetRowSize( m_dragRowOrCol, wxMax( y - rowTop, WXGRID_MIN_ROW_HEIGHT ) ); - if ( !GetBatchCount() ) - { - // Only needed to get the correct rect.y: - wxRect rect ( CellToRect( m_dragRowOrCol, 0 ) ); - rect.x = 0; - CalcScrolledPosition(0, rect.y, &dummy, &rect.y); - rect.width = m_rowLabelWidth; - rect.height = ch - rect.y; - m_rowLabelWin->Refresh( TRUE, &rect ); - rect.width = cw; - m_gridWin->Refresh( FALSE, &rect ); - } - - ShowCellEditControl(); - - // Note: we are ending the event *after* doing - // default processing in this case - // - SendEvent( EVT_GRID_ROW_SIZE, m_dragRowOrCol, -1, event ); - } + // Note: we are ending the event *after* doing + // default processing in this case + // + SendEvent( EVT_GRID_ROW_SIZE, m_dragRowOrCol, -1, event ); } m_cursorMode = WXGRID_CURSOR_SELECT_CELL; @@ -1914,11 +1894,10 @@ void wxGrid::ProcessRowLabelMouseEvent( wxMouseEvent& event ) m_rowLabelWin->SetCursor( m_rowResizeCursor ); } } - else + else if ( m_cursorMode != WXGRID_CURSOR_SELECT_CELL ) { m_cursorMode = WXGRID_CURSOR_SELECT_CELL; - if ( m_rowLabelWin->GetCursor() == m_rowResizeCursor ) - m_rowLabelWin->SetCursor( *wxSTANDARD_CURSOR ); + m_rowLabelWin->SetCursor( *wxSTANDARD_CURSOR ); } } } @@ -1973,9 +1952,18 @@ void wxGrid::ProcessColLabelMouseEvent( wxMouseEvent& event ) m_isDragging = FALSE; + // ------------ Entering or leaving the window + // + if ( event.Entering() || event.Leaving() ) + { + m_cursorMode = WXGRID_CURSOR_SELECT_CELL; + m_colLabelWin->SetCursor( *wxSTANDARD_CURSOR ); + } + + // ------------ Left button pressed // - if ( event.LeftDown() ) + else if ( event.LeftDown() ) { // don't send a label click event for a hit on the // edge of the col label - this is probably the user @@ -2019,44 +2007,12 @@ void wxGrid::ProcessColLabelMouseEvent( wxMouseEvent& event ) if ( m_cursorMode == WXGRID_CURSOR_RESIZE_COL ) { m_colLabelWin->ReleaseMouse(); - - if ( m_dragLastPos >= 0 ) - { - // erase the last line and resize the col - // - int cw, ch, dummy, top; - m_gridWin->GetClientSize( &cw, &ch ); - CalcUnscrolledPosition( 0, 0, &dummy, &top ); - - wxClientDC dc( m_gridWin ); - PrepareDC( dc ); - dc.SetLogicalFunction( wxINVERT ); - dc.DrawLine( m_dragLastPos, top, m_dragLastPos, top+ch ); - HideCellEditControl(); - - int colLeft = m_colRights[m_dragRowOrCol] - m_colWidths[m_dragRowOrCol]; - SetColSize( m_dragRowOrCol, wxMax( x - colLeft, WXGRID_MIN_COL_WIDTH ) ); - - if ( !GetBatchCount() ) - { - // Only needed to get the correct rect.x: - wxRect rect ( CellToRect( 0, m_dragRowOrCol ) ); - rect.y = 0; - CalcScrolledPosition(rect.x, 0, &rect.x, &dummy); - rect.width = cw - rect.x; - rect.height = m_colLabelHeight; - m_colLabelWin->Refresh( TRUE, &rect ); - rect.height = ch; - m_gridWin->Refresh( FALSE, &rect ); - } - - ShowCellEditControl(); - - // Note: we are ending the event *after* doing - // default processing in this case - // - SendEvent( EVT_GRID_COL_SIZE, -1, m_dragRowOrCol, event ); - } + DoEndDragResizeCol(); + + // Note: we are ending the event *after* doing + // default processing in this case + // + SendEvent( EVT_GRID_COL_SIZE, -1, m_dragRowOrCol, event ); } m_cursorMode = WXGRID_CURSOR_SELECT_CELL; @@ -2101,11 +2057,10 @@ void wxGrid::ProcessColLabelMouseEvent( wxMouseEvent& event ) m_colLabelWin->SetCursor( m_colResizeCursor ); } } - else + else if ( m_cursorMode != WXGRID_CURSOR_SELECT_CELL ) { m_cursorMode = WXGRID_CURSOR_SELECT_CELL; - if ( m_colLabelWin->GetCursor() == m_colResizeCursor ) - m_colLabelWin->SetCursor( *wxSTANDARD_CURSOR ); + m_colLabelWin->SetCursor( *wxSTANDARD_CURSOR ); } } } @@ -2177,7 +2132,39 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event ) } } } + else if ( m_cursorMode == WXGRID_CURSOR_RESIZE_ROW ) + { + int cw, ch, left, dummy; + m_gridWin->GetClientSize( &cw, &ch ); + CalcUnscrolledPosition( 0, 0, &left, &dummy ); + wxClientDC dc( m_gridWin ); + PrepareDC( dc ); + dc.SetLogicalFunction(wxINVERT); + if ( m_dragLastPos >= 0 ) + { + dc.DrawLine( left, m_dragLastPos, left+cw, m_dragLastPos ); + } + dc.DrawLine( left, y, left+cw, y ); + m_dragLastPos = y; + } + else if ( m_cursorMode == WXGRID_CURSOR_RESIZE_COL ) + { + int cw, ch, dummy, top; + m_gridWin->GetClientSize( &cw, &ch ); + CalcUnscrolledPosition( 0, 0, &dummy, &top ); + + wxClientDC dc( m_gridWin ); + PrepareDC( dc ); + dc.SetLogicalFunction(wxINVERT); + if ( m_dragLastPos >= 0 ) + { + dc.DrawLine( m_dragLastPos, top, m_dragLastPos, top+ch ); + } + dc.DrawLine( x, top, x, top+ch ); + m_dragLastPos = x; + } + return; } @@ -2185,13 +2172,22 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event ) if ( coords != wxGridNoCellCoords ) { - if ( event.LeftDown() ) + if ( event.Entering() || event.Leaving() ) + { + m_cursorMode = WXGRID_CURSOR_SELECT_CELL; + m_gridWin->SetCursor( *wxSTANDARD_CURSOR ); + } + + // ------------ Left button pressed + // + else if ( event.LeftDown() ) { if ( event.ShiftDown() ) { SelectBlock( m_currentCellCoords, coords ); } - else + else if ( XToEdgeOfCol(x) < 0 && + YToEdgeOfRow(y) < 0 ) { if ( !SendEvent( EVT_GRID_CELL_LEFT_CLICK, coords.GetRow(), @@ -2209,10 +2205,13 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event ) // else if ( event.LeftDClick() ) { - SendEvent( EVT_GRID_CELL_LEFT_DCLICK, - coords.GetRow(), - coords.GetCol(), - event ); + if ( XToEdgeOfCol(x) < 0 && YToEdgeOfRow(y) < 0 ) + { + SendEvent( EVT_GRID_CELL_LEFT_DCLICK, + coords.GetRow(), + coords.GetCol(), + event ); + } } @@ -2226,13 +2225,33 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event ) { SendEvent( EVT_GRID_RANGE_SELECT, -1, -1, event ); } - } - // Show the edit control, if it has - // been hidden for drag-shrinking. - if ( IsCellEditControlEnabled() ) - ShowCellEditControl(); + // Show the edit control, if it has + // been hidden for drag-shrinking. + if ( IsCellEditControlEnabled() ) + ShowCellEditControl(); + } + else if ( m_cursorMode == WXGRID_CURSOR_RESIZE_ROW ) + { + m_gridWin->ReleaseMouse(); + DoEndDragResizeRow(); + // Note: we are ending the event *after* doing + // default processing in this case + // + SendEvent( EVT_GRID_ROW_SIZE, m_dragRowOrCol, -1, event ); + } + else if ( m_cursorMode == WXGRID_CURSOR_RESIZE_COL ) + { + m_gridWin->ReleaseMouse(); + DoEndDragResizeCol(); + + // Note: we are ending the event *after* doing + // default processing in this case + // + SendEvent( EVT_GRID_COL_SIZE, -1, m_dragRowOrCol, event ); + } + m_dragLastPos = -1; } @@ -2268,12 +2287,134 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event ) // else if ( event.Moving() && !event.IsButton() ) { - m_cursorMode = WXGRID_CURSOR_SELECT_CELL; + int dragRow = YToEdgeOfRow( y ); + int dragCol = XToEdgeOfCol( x ); + + // Dragging on the corner of a cell to resize in both + // directions is not implemented yet... + // + if ( dragRow >= 0 && dragCol >= 0 ) + { + m_cursorMode = WXGRID_CURSOR_SELECT_CELL; + m_gridWin->SetCursor( *wxSTANDARD_CURSOR ); + return; + } + + if ( dragRow >= 0 ) + { + m_dragRowOrCol = dragRow; + + if ( m_cursorMode == WXGRID_CURSOR_SELECT_CELL ) + { + m_cursorMode = WXGRID_CURSOR_RESIZE_ROW; + m_gridWin->SetCursor( m_rowResizeCursor ); + } + + return; + } + + if ( dragCol >= 0 ) + { + m_dragRowOrCol = dragCol; + + if ( m_cursorMode == WXGRID_CURSOR_SELECT_CELL ) + { + m_cursorMode = WXGRID_CURSOR_RESIZE_COL; + m_gridWin->SetCursor( m_colResizeCursor ); + } + + return; + } + + // Neither on a row or col edge + // + if ( m_cursorMode != WXGRID_CURSOR_SELECT_CELL ) + { + m_cursorMode = WXGRID_CURSOR_SELECT_CELL; + m_gridWin->SetCursor( *wxSTANDARD_CURSOR ); + } } } } +void wxGrid::DoEndDragResizeRow() +{ + if ( m_dragLastPos >= 0 ) + { + // erase the last line and resize the row + // + int cw, ch, left, dummy; + m_gridWin->GetClientSize( &cw, &ch ); + CalcUnscrolledPosition( 0, 0, &left, &dummy ); + + wxClientDC dc( m_gridWin ); + PrepareDC( dc ); + dc.SetLogicalFunction( wxINVERT ); + dc.DrawLine( left, m_dragLastPos, left+cw, m_dragLastPos ); + HideCellEditControl(); + + int rowTop = m_rowBottoms[m_dragRowOrCol] - m_rowHeights[m_dragRowOrCol]; + SetRowSize( m_dragRowOrCol, + wxMax( m_dragLastPos - rowTop, WXGRID_MIN_ROW_HEIGHT ) ); + + if ( !GetBatchCount() ) + { + // Only needed to get the correct rect.y: + wxRect rect ( CellToRect( m_dragRowOrCol, 0 ) ); + rect.x = 0; + CalcScrolledPosition(0, rect.y, &dummy, &rect.y); + rect.width = m_rowLabelWidth; + rect.height = ch - rect.y; + m_rowLabelWin->Refresh( TRUE, &rect ); + rect.width = cw; + m_gridWin->Refresh( FALSE, &rect ); + } + + ShowCellEditControl(); + } +} + + +void wxGrid::DoEndDragResizeCol() +{ + if ( m_dragLastPos >= 0 ) + { + // erase the last line and resize the col + // + int cw, ch, dummy, top; + m_gridWin->GetClientSize( &cw, &ch ); + CalcUnscrolledPosition( 0, 0, &dummy, &top ); + + wxClientDC dc( m_gridWin ); + PrepareDC( dc ); + dc.SetLogicalFunction( wxINVERT ); + dc.DrawLine( m_dragLastPos, top, m_dragLastPos, top+ch ); + HideCellEditControl(); + + int colLeft = m_colRights[m_dragRowOrCol] - m_colWidths[m_dragRowOrCol]; + SetColSize( m_dragRowOrCol, + wxMax( m_dragLastPos - colLeft, WXGRID_MIN_COL_WIDTH ) ); + + if ( !GetBatchCount() ) + { + // Only needed to get the correct rect.x: + wxRect rect ( CellToRect( 0, m_dragRowOrCol ) ); + rect.y = 0; + CalcScrolledPosition(rect.x, 0, &rect.x, &dummy); + rect.width = cw - rect.x; + rect.height = m_colLabelHeight; + m_colLabelWin->Refresh( TRUE, &rect ); + rect.height = ch; + m_gridWin->Refresh( FALSE, &rect ); + } + + ShowCellEditControl(); + } +} + + + // // ------ interaction with data model // @@ -3226,8 +3367,7 @@ void wxGrid::StringToLines( const wxString& value, wxArrayString& lines ) { int startPos = 0; int pos; - wxTextFile tf; - wxString eol = wxTextFile::GetEOL( wxTextFileType_Unix ); + wxString eol = wxTextFile::GetEOL( wxTextFileType_Unix ); wxString tVal = wxTextFile::Translate( value, wxTextFileType_Unix ); while ( startPos < (int)tVal.Length() ) @@ -4478,12 +4618,6 @@ void wxGrid::SetRowSize( int row, int height ) m_rowBottoms[i] += diff; } CalcDimensions(); - - // Note: we are ending the event *after* doing - // default processing in this case - // - SendEvent( EVT_GRID_ROW_SIZE, - row, -1 ); } void wxGrid::SetDefaultColSize( int width, bool resizeExistingCols ) @@ -4519,12 +4653,6 @@ void wxGrid::SetColSize( int col, int width ) m_colRights[i] += diff; } CalcDimensions(); - - // Note: we are ending the event *after* doing - // default processing in this case - // - SendEvent( EVT_GRID_COL_SIZE, - -1, col ); } void wxGrid::SetDefaultCellBackgroundColour( const wxColour& col )