5e6d30aa0b
Maintain a list of columns used for sorting instead of a single sort column index and allow to add/remove columns to/from it interactively by right clicking them if AllowMultiColumnSort() was used. See https://github.com/wxWidgets/wxWidgets/pull/3 git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75806 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
308 lines
11 KiB
C++
308 lines
11 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/generic/dataview.h
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// Purpose: wxDataViewCtrl generic implementation header
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// Author: Robert Roebling
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// Modified By: Bo Yang
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// Copyright: (c) 1998 Robert Roebling
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef __GENERICDATAVIEWCTRLH__
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#define __GENERICDATAVIEWCTRLH__
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#include "wx/defs.h"
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#include "wx/object.h"
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#include "wx/list.h"
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#include "wx/control.h"
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#include "wx/scrolwin.h"
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#include "wx/icon.h"
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#include "wx/vector.h"
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class WXDLLIMPEXP_FWD_ADV wxDataViewMainWindow;
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class WXDLLIMPEXP_FWD_ADV wxDataViewHeaderWindow;
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// ---------------------------------------------------------
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// wxDataViewColumn
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// ---------------------------------------------------------
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class WXDLLIMPEXP_ADV wxDataViewColumn : public wxDataViewColumnBase
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{
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public:
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wxDataViewColumn(const wxString& title,
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wxDataViewRenderer *renderer,
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unsigned int model_column,
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int width = wxDVC_DEFAULT_WIDTH,
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wxAlignment align = wxALIGN_CENTER,
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int flags = wxDATAVIEW_COL_RESIZABLE)
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: wxDataViewColumnBase(renderer, model_column),
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m_title(title)
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{
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Init(width, align, flags);
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}
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wxDataViewColumn(const wxBitmap& bitmap,
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wxDataViewRenderer *renderer,
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unsigned int model_column,
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int width = wxDVC_DEFAULT_WIDTH,
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wxAlignment align = wxALIGN_CENTER,
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int flags = wxDATAVIEW_COL_RESIZABLE)
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: wxDataViewColumnBase(bitmap, renderer, model_column)
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{
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Init(width, align, flags);
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}
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// implement wxHeaderColumnBase methods
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virtual void SetTitle(const wxString& title) { m_title = title; UpdateDisplay(); }
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virtual wxString GetTitle() const { return m_title; }
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virtual void SetWidth(int width) { m_width = width; UpdateDisplay(); }
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virtual int GetWidth() const;
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virtual void SetMinWidth(int minWidth) { m_minWidth = minWidth; UpdateDisplay(); }
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virtual int GetMinWidth() const { return m_minWidth; }
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virtual void SetAlignment(wxAlignment align) { m_align = align; UpdateDisplay(); }
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virtual wxAlignment GetAlignment() const { return m_align; }
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virtual void SetFlags(int flags) { m_flags = flags; UpdateDisplay(); }
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virtual int GetFlags() const { return m_flags; }
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virtual bool IsSortKey() const { return m_sort; }
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virtual void UnsetAsSortKey();
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virtual void SetSortOrder(bool ascending);
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virtual bool IsSortOrderAscending() const { return m_sortAscending; }
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virtual void SetBitmap( const wxBitmap& bitmap ) { wxDataViewColumnBase::SetBitmap(bitmap); UpdateDisplay(); }
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private:
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// common part of all ctors
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void Init(int width, wxAlignment align, int flags);
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void UpdateDisplay();
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wxString m_title;
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int m_width,
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m_minWidth;
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wxAlignment m_align;
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int m_flags;
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bool m_sort,
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m_sortAscending;
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friend class wxDataViewHeaderWindowBase;
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friend class wxDataViewHeaderWindow;
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friend class wxDataViewHeaderWindowMSW;
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};
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// ---------------------------------------------------------
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// wxDataViewCtrl
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// ---------------------------------------------------------
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WX_DECLARE_LIST_WITH_DECL(wxDataViewColumn, wxDataViewColumnList,
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class WXDLLIMPEXP_ADV);
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class WXDLLIMPEXP_ADV wxDataViewCtrl : public wxDataViewCtrlBase,
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public wxScrollHelper
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{
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friend class wxDataViewMainWindow;
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friend class wxDataViewHeaderWindowBase;
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friend class wxDataViewHeaderWindow;
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friend class wxDataViewHeaderWindowMSW;
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friend class wxDataViewColumn;
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public:
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wxDataViewCtrl() : wxScrollHelper(this)
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{
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Init();
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}
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wxDataViewCtrl( wxWindow *parent, wxWindowID id,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize, long style = 0,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxDataViewCtrlNameStr )
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: wxScrollHelper(this)
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{
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Create(parent, id, pos, size, style, validator, name);
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}
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virtual ~wxDataViewCtrl();
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void Init();
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bool Create(wxWindow *parent, wxWindowID id,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize, long style = 0,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxDataViewCtrlNameStr);
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virtual bool AssociateModel( wxDataViewModel *model );
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virtual bool AppendColumn( wxDataViewColumn *col );
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virtual bool PrependColumn( wxDataViewColumn *col );
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virtual bool InsertColumn( unsigned int pos, wxDataViewColumn *col );
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virtual void DoSetExpanderColumn();
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virtual void DoSetIndent();
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virtual unsigned int GetColumnCount() const;
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virtual wxDataViewColumn* GetColumn( unsigned int pos ) const;
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virtual bool DeleteColumn( wxDataViewColumn *column );
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virtual bool ClearColumns();
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virtual int GetColumnPosition( const wxDataViewColumn *column ) const;
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virtual wxDataViewColumn *GetSortingColumn() const;
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virtual wxVector<wxDataViewColumn *> GetSortingColumns() const;
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virtual int GetSelectedItemsCount() const;
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virtual int GetSelections( wxDataViewItemArray & sel ) const;
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virtual void SetSelections( const wxDataViewItemArray & sel );
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virtual void Select( const wxDataViewItem & item );
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virtual void Unselect( const wxDataViewItem & item );
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virtual bool IsSelected( const wxDataViewItem & item ) const;
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virtual void SelectAll();
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virtual void UnselectAll();
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virtual void EnsureVisible( const wxDataViewItem & item,
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const wxDataViewColumn *column = NULL );
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virtual void HitTest( const wxPoint & point, wxDataViewItem & item,
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wxDataViewColumn* &column ) const;
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virtual wxRect GetItemRect( const wxDataViewItem & item,
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const wxDataViewColumn *column = NULL ) const;
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virtual bool SetRowHeight( int rowHeight );
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virtual void Expand( const wxDataViewItem & item );
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virtual void Collapse( const wxDataViewItem & item );
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virtual bool IsExpanded( const wxDataViewItem & item ) const;
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virtual void SetFocus();
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virtual bool SetFont(const wxFont & font);
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virtual bool AllowMultiColumnSort(bool allow);
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virtual bool IsMultiColumnSortAllowed() { return m_allowMultiColumnSort; }
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virtual void ToggleSortByColumn(int column);
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#if wxUSE_DRAG_AND_DROP
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virtual bool EnableDragSource( const wxDataFormat &format );
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virtual bool EnableDropTarget( const wxDataFormat &format );
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#endif // wxUSE_DRAG_AND_DROP
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virtual wxBorder GetDefaultBorder() const;
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virtual void EditItem(const wxDataViewItem& item, const wxDataViewColumn *column);
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// These methods are specific to generic wxDataViewCtrl implementation and
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// should not be used in portable code.
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wxColour GetAlternateRowColour() const { return m_alternateRowColour; }
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void SetAlternateRowColour(const wxColour& colour);
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protected:
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virtual void EnsureVisible( int row, int column );
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// Notice that row here may be invalid (i.e. >= GetRowCount()), this is not
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// an error and this function simply returns an invalid item in this case.
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virtual wxDataViewItem GetItemByRow( unsigned int row ) const;
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virtual int GetRowByItem( const wxDataViewItem & item ) const;
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// Mark the column as being used or not for sorting.
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void UseColumnForSorting(int idx);
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void DontUseColumnForSorting(int idx);
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// Return true if the given column is sorted
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bool IsColumnSorted(int idx) const;
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// Reset all columns currently used for sorting.
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void ResetAllSortColumns();
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public: // utility functions not part of the API
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// returns the "best" width for the idx-th column
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unsigned int GetBestColumnWidth(int idx) const;
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// called by header window after reorder
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void ColumnMoved( wxDataViewColumn* col, unsigned int new_pos );
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// update the display after a change to an individual column
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void OnColumnChange(unsigned int idx);
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// update after a change to the number of columns
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void OnColumnsCountChanged();
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wxWindow *GetMainWindow() { return (wxWindow*) m_clientArea; }
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// return the index of the given column in m_cols
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int GetColumnIndex(const wxDataViewColumn *column) const;
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// Return the index of the column having the given model index.
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int GetModelColumnIndex(unsigned int model_column) const;
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// return the column displayed at the given position in the control
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wxDataViewColumn *GetColumnAt(unsigned int pos) const;
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virtual wxDataViewColumn *GetCurrentColumn() const;
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virtual void OnInternalIdle();
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private:
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virtual wxDataViewItem DoGetCurrentItem() const;
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virtual void DoSetCurrentItem(const wxDataViewItem& item);
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void InvalidateColBestWidths();
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void InvalidateColBestWidth(int idx);
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void UpdateColWidths();
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wxDataViewColumnList m_cols;
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// cached column best widths information, values are for
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// respective columns from m_cols and the arrays have same size
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struct CachedColWidthInfo
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{
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CachedColWidthInfo() : width(0), dirty(true) {}
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int width; // cached width or 0 if not computed
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bool dirty; // column was invalidated, header needs updating
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};
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wxVector<CachedColWidthInfo> m_colsBestWidths;
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// This indicates that at least one entry in m_colsBestWidths has 'dirty'
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// flag set. It's cheaper to check one flag in OnInternalIdle() than to
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// iterate over m_colsBestWidths to check if anything needs to be done.
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bool m_colsDirty;
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wxDataViewModelNotifier *m_notifier;
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wxDataViewMainWindow *m_clientArea;
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wxDataViewHeaderWindow *m_headerArea;
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// user defined color to draw row lines, may be invalid
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wxColour m_alternateRowColour;
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// columns indices used for sorting, empty if nothing is sorted
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wxVector<int> m_sortingColumnIdxs;
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// if true, allow sorting by more than one column
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bool m_allowMultiColumnSort;
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private:
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void OnSize( wxSizeEvent &event );
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virtual wxSize GetSizeAvailableForScrollTarget(const wxSize& size);
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// we need to return a special WM_GETDLGCODE value to process just the
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// arrows but let the other navigation characters through
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#ifdef __WXMSW__
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virtual WXLRESULT MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
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#endif // __WXMSW__
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WX_FORWARD_TO_SCROLL_HELPER()
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private:
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DECLARE_DYNAMIC_CLASS(wxDataViewCtrl)
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wxDECLARE_NO_COPY_CLASS(wxDataViewCtrl);
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DECLARE_EVENT_TABLE()
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};
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#endif // __GENERICDATAVIEWCTRLH__
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