X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/78e788120814699ab0a0d2fab1131285f5e0fd7a..1f0acb435592470b421b80df854fbbb08cd2853f:/include/wx/generic/grid.h

diff --git a/include/wx/generic/grid.h b/include/wx/generic/grid.h
index 9c16160f28..c65d2e2f50 100644
--- a/include/wx/generic/grid.h
+++ b/include/wx/generic/grid.h
@@ -16,6 +16,8 @@
 
 #if wxUSE_GRID
 
+#include "wx/hashmap.h"
+
 #include "wx/scrolwin.h"
 
 // ----------------------------------------------------------------------------
@@ -42,11 +44,11 @@ extern WXDLLIMPEXP_DATA_ADV(const char) wxGridNameStr[];
 #define WXGRID_DEFAULT_SCROLLBAR_WIDTH        16
 
 // type names for grid table values
-#define wxGRID_VALUE_STRING     _T("string")
-#define wxGRID_VALUE_BOOL       _T("bool")
-#define wxGRID_VALUE_NUMBER     _T("long")
-#define wxGRID_VALUE_FLOAT      _T("double")
-#define wxGRID_VALUE_CHOICE     _T("choice")
+#define wxGRID_VALUE_STRING     wxT("string")
+#define wxGRID_VALUE_BOOL       wxT("bool")
+#define wxGRID_VALUE_NUMBER     wxT("long")
+#define wxGRID_VALUE_FLOAT      wxT("double")
+#define wxGRID_VALUE_CHOICE     wxT("choice")
 
 #define wxGRID_VALUE_TEXT wxGRID_VALUE_STRING
 #define wxGRID_VALUE_LONG wxGRID_VALUE_NUMBER
@@ -85,6 +87,8 @@ class WXDLLIMPEXP_FWD_CORE wxTextCtrl;
 class WXDLLIMPEXP_FWD_CORE wxSpinCtrl;
 #endif
 
+class wxGridFixedIndicesSet;
+
 class wxGridOperations;
 class wxGridRowOperations;
 class wxGridColumnOperations;
@@ -106,16 +110,10 @@ class wxGridDirectionOperations;
 //     class is not documented and is not public at all
 // ----------------------------------------------------------------------------
 
-class WXDLLIMPEXP_ADV wxGridCellWorker : public wxClientDataContainer
+class WXDLLIMPEXP_ADV wxGridCellWorker : public wxClientDataContainer, public wxRefCounter
 {
 public:
-    wxGridCellWorker() { m_nRef = 1; }
-
-    // this class is ref counted: it is created with ref count of 1, so
-    // calling DecRef() once will delete it. Calling IncRef() allows to lock
-    // it until the matching DecRef() is called
-    void IncRef() { m_nRef++; }
-    void DecRef() { if ( --m_nRef == 0 ) delete this; }
+    wxGridCellWorker() { }
 
     // interpret renderer parameters: arbitrary string whose interpretatin is
     // left to the derived classes
@@ -127,8 +125,6 @@ protected:
     virtual ~wxGridCellWorker();
 
 private:
-    size_t m_nRef;
-
     // suppress the stupid gcc warning about the class having private dtor and
     // no friends
     friend class wxGridCellWorkerDummyFriend;
@@ -286,6 +282,87 @@ protected:
     wxDECLARE_NO_COPY_CLASS(wxGridCellEditor);
 };
 
+// ----------------------------------------------------------------------------
+// wxGridHeaderRenderer and company: like wxGridCellRenderer but for headers
+// ----------------------------------------------------------------------------
+
+// Base class for corner window renderer: it is the simplest of all renderers
+// and only has a single function
+class WXDLLIMPEXP_ADV wxGridCornerHeaderRenderer
+{
+public:
+    // Draw the border around the corner window.
+    virtual void DrawBorder(const wxGrid& grid,
+                            wxDC& dc,
+                            wxRect& rect) const = 0;
+
+    // make the dtor of a class with virtual functions virtual to avoid g++
+    // warnings, even though this class is not supposed to be used
+    // polymorphically
+    virtual ~wxGridCornerHeaderRenderer() { }
+};
+
+
+// Base class for the row/column header cells renderers
+class WXDLLIMPEXP_ADV wxGridHeaderLabelsRenderer
+    : public wxGridCornerHeaderRenderer
+{
+public:
+    // Draw header cell label
+    virtual void DrawLabel(const wxGrid& grid,
+                           wxDC& dc,
+                           const wxString& value,
+                           const wxRect& rect,
+                           int horizAlign,
+                           int vertAlign,
+                           int textOrientation) const;
+};
+
+// Currently the row/column/corner renders don't need any methods other than
+// those already in wxGridHeaderLabelsRenderer but still define separate classes
+// for them for future extensions and also for better type safety (i.e. to
+// avoid inadvertently using a column header renderer for the row headers)
+class WXDLLIMPEXP_ADV wxGridRowHeaderRenderer
+    : public wxGridHeaderLabelsRenderer
+{
+};
+
+class WXDLLIMPEXP_ADV wxGridColumnHeaderRenderer
+    : public wxGridHeaderLabelsRenderer
+{
+};
+
+// Also define the default renderers which are used by wxGridCellAttrProvider
+// by default
+class WXDLLIMPEXP_ADV wxGridRowHeaderRendererDefault
+    : public wxGridRowHeaderRenderer
+{
+public:
+    virtual void DrawBorder(const wxGrid& grid,
+                            wxDC& dc,
+                            wxRect& rect) const;
+};
+
+// Column header cells renderers
+class WXDLLIMPEXP_ADV wxGridColumnHeaderRendererDefault
+    : public wxGridColumnHeaderRenderer
+{
+public:
+    virtual void DrawBorder(const wxGrid& grid,
+                            wxDC& dc,
+                            wxRect& rect) const;
+};
+
+// Header corner renderer
+class WXDLLIMPEXP_ADV wxGridCornerHeaderRendererDefault
+    : public wxGridCornerHeaderRenderer
+{
+public:
+    virtual void DrawBorder(const wxGrid& grid,
+                            wxDC& dc,
+                            wxRect& rect) const;
+};
+
 
 // ----------------------------------------------------------------------------
 // wxGridCellAttr: this class can be used to alter the cells appearance in
@@ -293,7 +370,7 @@ protected:
 // class may be returned by wxGridTable::GetAttr().
 // ----------------------------------------------------------------------------
 
-class WXDLLIMPEXP_ADV wxGridCellAttr : public wxClientDataContainer
+class WXDLLIMPEXP_ADV wxGridCellAttr : public wxClientDataContainer, public wxRefCounter
 {
 public:
     enum wxAttrKind
@@ -311,8 +388,7 @@ public:
     {
         Init(attrDefault);
 
-        // MB: args used to be 0,0 here but wxALIGN_LEFT is 0
-        SetAlignment(-1, -1);
+        SetAlignment(wxALIGN_INVALID, wxALIGN_INVALID);
     }
 
     // VZ: considering the number of members wxGridCellAttr has now, this ctor
@@ -332,12 +408,6 @@ public:
     wxGridCellAttr *Clone() const;
     void MergeWith(wxGridCellAttr *mergefrom);
 
-    // this class is ref counted: it is created with ref count of 1, so
-    // calling DecRef() once will delete it. Calling IncRef() allows to lock
-    // it until the matching DecRef() is called
-    void IncRef() { m_nRef++; }
-    void DecRef() { if ( --m_nRef == 0 ) delete this; }
-
     // setters
     void SetTextColour(const wxColour& colText) { m_colText = colText; }
     void SetBackgroundColour(const wxColour& colBack) { m_colBack = colBack; }
@@ -362,10 +432,13 @@ public:
     void SetKind(wxAttrKind kind) { m_attrkind = kind; }
 
     // accessors
-    bool HasTextColour() const { return m_colText.Ok(); }
-    bool HasBackgroundColour() const { return m_colBack.Ok(); }
-    bool HasFont() const { return m_font.Ok(); }
-    bool HasAlignment() const { return (m_hAlign != -1 || m_vAlign != -1); }
+    bool HasTextColour() const { return m_colText.IsOk(); }
+    bool HasBackgroundColour() const { return m_colBack.IsOk(); }
+    bool HasFont() const { return m_font.IsOk(); }
+    bool HasAlignment() const
+    {
+        return m_hAlign != wxALIGN_INVALID || m_vAlign != wxALIGN_INVALID;
+    }
     bool HasRenderer() const { return m_renderer != NULL; }
     bool HasEditor() const { return m_editor != NULL; }
     bool HasReadWriteMode() const { return m_isReadOnly != Unset; }
@@ -376,6 +449,15 @@ public:
     const wxColour& GetBackgroundColour() const;
     const wxFont& GetFont() const;
     void GetAlignment(int *hAlign, int *vAlign) const;
+
+    // unlike GetAlignment() which always overwrites its output arguments with
+    // the alignment values to use, falling back on default alignment if this
+    // attribute doesn't have any, this function will preserve the values of
+    // parameters on entry if the corresponding alignment is not set in this
+    // attribute meaning that they can be initialized to default alignment (and
+    // also that they must be initialized, unlike with GetAlignment())
+    void GetNonDefaultAlignment(int *hAlign, int *vAlign) const;
+
     void GetSize(int *num_rows, int *num_cols) const;
     bool GetOverflow() const
         { return m_overflow != SingleCell; }
@@ -415,9 +497,6 @@ private:
     void Init(wxGridCellAttr *attrDefault = NULL);
 
 
-    // the ref count - when it goes to 0, we die
-    size_t   m_nRef;
-
     wxColour m_colText,
              m_colBack;
     wxFont   m_font;
@@ -477,6 +556,14 @@ public:
     void UpdateAttrRows( size_t pos, int numRows );
     void UpdateAttrCols( size_t pos, int numCols );
 
+
+    // get renderers for the given row/column header label and the corner
+    // window: unlike cell renderers, these objects are not reference counted
+    // and are never NULL so they are returned by reference
+    virtual const wxGridColumnHeaderRenderer& GetColumnHeaderRenderer(int col);
+    virtual const wxGridRowHeaderRenderer& GetRowHeaderRenderer(int row);
+    virtual const wxGridCornerHeaderRenderer& GetCornerRenderer();
+
 private:
     void InitData();
 
@@ -721,14 +808,13 @@ class WXDLLIMPEXP_ADV wxGridStringTable : public wxGridTableBase
 public:
     wxGridStringTable();
     wxGridStringTable( int numRows, int numCols );
-    virtual ~wxGridStringTable();
 
     // these are pure virtual in wxGridTableBase
     //
-    int GetNumberRows();
-    int GetNumberCols();
-    wxString GetValue( int row, int col );
-    void SetValue( int row, int col, const wxString& s );
+    virtual int GetNumberRows() { return m_data.size(); }
+    virtual int GetNumberCols() { return m_numCols; }
+    virtual wxString GetValue( int row, int col );
+    virtual void SetValue( int row, int col, const wxString& s );
 
     // overridden functions from wxGridTableBase
     //
@@ -748,6 +834,12 @@ public:
 private:
     wxGridStringArray m_data;
 
+    // notice that while we don't need to store the number of our rows as it's
+    // always equal to the size of m_data array, we do need to store the number
+    // of our columns as we can't retrieve it from m_data when the number of
+    // rows is 0 (see #10818)
+    int m_numCols;
+
     // These only get used if you set your own labels, otherwise the
     // GetRow/ColLabelValue functions return wxGridTableBase defaults
     //
@@ -771,7 +863,7 @@ private:
 // their non default size for those which don't have the default size.
 // ----------------------------------------------------------------------------
 
-// Hashmap to store postions as the keys and sizes as the values
+// hash map to store positions as the keys and sizes as the values
 WX_DECLARE_HASH_MAP_WITH_DECL( unsigned, int, wxIntegerHash, wxIntegerEqual,
                                wxUnsignedToIntHashMap, class WXDLLIMPEXP_ADV );
 
@@ -931,12 +1023,12 @@ public:
     void DrawTextRectangle( wxDC& dc, const wxString&, const wxRect&,
                             int horizontalAlignment = wxALIGN_LEFT,
                             int verticalAlignment = wxALIGN_TOP,
-                            int textOrientation = wxHORIZONTAL );
+                            int textOrientation = wxHORIZONTAL ) const;
 
     void DrawTextRectangle( wxDC& dc, const wxArrayString& lines, const wxRect&,
                             int horizontalAlignment = wxALIGN_LEFT,
                             int verticalAlignment = wxALIGN_TOP,
-                            int textOrientation = wxHORIZONTAL );
+                            int textOrientation = wxHORIZONTAL ) const;
 
 
     // Split a string containing newline characters into an array of
@@ -1101,19 +1193,42 @@ public:
     void     SetCellHighlightPenWidth(int width);
     void     SetCellHighlightROPenWidth(int width);
 
+
+    // interactive grid mouse operations control
+    // -----------------------------------------
+
+    // functions globally enabling row/column interactive resizing (enabled by
+    // default)
     void     EnableDragRowSize( bool enable = true );
     void     DisableDragRowSize() { EnableDragRowSize( false ); }
-    bool     CanDragRowSize() const { return m_canDragRowSize; }
+
     void     EnableDragColSize( bool enable = true );
     void     DisableDragColSize() { EnableDragColSize( false ); }
-    bool     CanDragColSize() const { return m_canDragColSize; }
+
+        // if interactive resizing is enabled, some rows/columns can still have
+        // fixed size
+    void DisableRowResize(int row) { DoDisableLineResize(row, m_setFixedRows); }
+    void DisableColResize(int col) { DoDisableLineResize(col, m_setFixedCols); }
+
+        // these functions return whether the given row/column can be
+        // effectively resized: for this interactive resizing must be enabled
+        // and this index must not have been passed to DisableRow/ColResize()
+    bool CanDragRowSize(int row) const
+        { return m_canDragRowSize && DoCanResizeLine(row, m_setFixedRows); }
+    bool CanDragColSize(int col) const
+        { return m_canDragColSize && DoCanResizeLine(col, m_setFixedCols); }
+
+    // interactive column reordering (disabled by default)
     void     EnableDragColMove( bool enable = true );
     void     DisableDragColMove() { EnableDragColMove( false ); }
     bool     CanDragColMove() const { return m_canDragColMove; }
+
+    // interactive resizing of grid cells (enabled by default)
     void     EnableDragGridSize(bool enable = true);
     void     DisableDragGridSize() { EnableDragGridSize(false); }
     bool     CanDragGridSize() const { return m_canDragGridSize; }
 
+    // interactive dragging of cells (disabled by default)
     void     EnableDragCell( bool enable = true );
     void     DisableDragCell() { EnableDragCell( false ); }
     bool     CanDragCell() const { return m_canDragCell; }
@@ -1153,6 +1268,12 @@ public:
     void     SetRowAttr(int row, wxGridCellAttr *attr);
     void     SetColAttr(int col, wxGridCellAttr *attr);
 
+    // the grid can cache attributes for the recently used cells (currently it
+    // only caches one attribute for the most recently used one) and might
+    // notice that its value in the attribute provider has changed -- if this
+    // happens, call this function to force it
+    void RefreshAttr(int row, int col);
+
     // returns the attribute we may modify in place: a new one if this cell
     // doesn't have any yet or the existing one if it does
     //
@@ -1186,7 +1307,24 @@ public:
     void     GetCellAlignment( int row, int col, int *horiz, int *vert ) const;
     bool     GetDefaultCellOverflow() const;
     bool     GetCellOverflow( int row, int col ) const;
-    void     GetCellSize( int row, int col, int *num_rows, int *num_cols ) const;
+
+    // this function returns 1 in num_rows and num_cols for normal cells,
+    // positive numbers for a cell spanning multiple columns/rows (as set with
+    // SetCellSize()) and _negative_ numbers corresponding to the offset of the
+    // top left cell of the span from this one for the other cells covered by
+    // this cell
+    //
+    // the return value is CellSpan_None, CellSpan_Main or CellSpan_Inside for
+    // each of these cases respectively
+    enum CellSpan
+    {
+        CellSpan_Inside = -1,
+        CellSpan_None = 0,
+        CellSpan_Main
+    };
+
+    CellSpan GetCellSize( int row, int col, int *num_rows, int *num_cols ) const;
+
     wxSize GetCellSize(const wxGridCellCoords& coords)
     {
         wxSize s;
@@ -1463,10 +1601,10 @@ public:
     }
 
     // Allow adjustment of scroll increment. The default is (15, 15).
-    void SetScrollLineX(int x) { m_scrollLineX = x; }
-    void SetScrollLineY(int y) { m_scrollLineY = y; }
-    int GetScrollLineX() const { return m_scrollLineX; }
-    int GetScrollLineY() const { return m_scrollLineY; }
+    void SetScrollLineX(int x) { m_xScrollPixelsPerLine = x; }
+    void SetScrollLineY(int y) { m_yScrollPixelsPerLine = y; }
+    int GetScrollLineX() const { return m_xScrollPixelsPerLine; }
+    int GetScrollLineY() const { return m_yScrollPixelsPerLine; }
 
     // ------- drag and drop
 #if wxUSE_DRAG_AND_DROP
@@ -1571,9 +1709,9 @@ public:
     void SetLabelAlignment( int orientation, int align )
         {
             if ( orientation == wxHORIZONTAL )
-                SetColLabelAlignment( align, -1 );
+                SetColLabelAlignment( align, wxALIGN_INVALID );
             else
-                SetRowLabelAlignment( align, -1 );
+                SetRowLabelAlignment( align, wxALIGN_INVALID );
         }
 
     int GetLabelAlignment( int orientation, int WXUNUSED(align) ) const
@@ -1659,6 +1797,9 @@ public:
            wxGRID_CHECKBOX,
            wxGRID_CHOICE,
            wxGRID_COMBOBOX };
+
+    wxDEPRECATED_INLINE(bool CanDragRowSize() const, return m_canDragRowSize; )
+    wxDEPRECATED_INLINE(bool CanDragColSize() const, return m_canDragColSize; )
 #endif // WXWIN_COMPATIBILITY_2_8
 
 
@@ -1911,9 +2052,6 @@ protected:
     bool       m_editable;              // applies to whole grid
     bool       m_cellEditCtrlEnabled;   // is in-place edit currently shown?
 
-    int m_scrollLineX; // X scroll increment
-    int m_scrollLineY; // Y scroll increment
-
     void Init();        // common part of all ctors
     void Create();
     void CreateColumnWindow();
@@ -1926,10 +2064,10 @@ protected:
     // it was processed (but not vetoed) and 0 if it wasn't processed
     int SendEvent(const wxEventType evtType,
                   int row, int col,
-                  wxMouseEvent& e);
+                  const wxMouseEvent& e);
     int SendEvent(const wxEventType evtType,
                   const wxGridCellCoords& coords,
-                  wxMouseEvent& e)
+                  const wxMouseEvent& e)
         { return SendEvent(evtType, coords.GetRow(), coords.GetCol(), e); }
     int SendEvent(const wxEventType evtType,
                   int row, int col,
@@ -1941,6 +2079,11 @@ protected:
     int SendEvent(const wxEventType evtType, const wxString& s = wxString())
         { return SendEvent(evtType, m_currentCellCoords, s); }
 
+    // send wxEVT_GRID_{ROW,COL}_SIZE
+    void SendGridSizeEvent(wxEventType type,
+                           int row, int col,
+                           const wxMouseEvent& mouseEv);
+
     void OnPaint( wxPaintEvent& );
     void OnSize( wxSizeEvent& );
     void OnKeyDown( wxKeyEvent& );
@@ -1978,10 +2121,12 @@ protected:
     friend class wxGridColLabelWindow;
     friend class wxGridRowLabelWindow;
     friend class wxGridWindow;
+    friend class wxGridHeaderRenderer;
 
     friend class wxGridHeaderCtrl;
 
 private:
+
     // implement wxScrolledWindow method to return m_gridWin size
     virtual wxSize GetSizeAvailableForScrollTarget(const wxSize& size);
 
@@ -2054,14 +2199,14 @@ private:
     void DoUpdateResizeColWidth(int w);
     void DoStartMoveCol(int col);
 
-    void DoEndDragResizeRow();
-    void DoEndDragResizeCol(wxMouseEvent *event = NULL);
+    void DoEndDragResizeRow(const wxMouseEvent& event);
+    void DoEndDragResizeCol(const wxMouseEvent& event);
     void DoEndMoveCol(int pos);
 
 
     // common implementations of methods defined for both rows and columns
     void DeselectLine(int line, const wxGridOperations& oper);
-    void DoEndDragResizeLine(const wxGridOperations& oper);
+    bool DoEndDragResizeLine(const wxGridOperations& oper);
     int PosToLinePos(int pos, bool clipToMinMax,
                      const wxGridOperations& oper) const;
     int PosToLine(int pos, bool clipToMinMax,
@@ -2083,10 +2228,22 @@ private:
     bool DoAppendLines(bool (wxGridTableBase::*funcAppend)(size_t),
                        int num, bool updateLabels);
 
-    // Common part of Set{Col,Row}Sizes
+    // common part of Set{Col,Row}Sizes
     void DoSetSizes(const wxGridSizesInfo& sizeInfo,
                     const wxGridOperations& oper);
 
+    // common part of Disable{Row,Col}Resize and CanDrag{Row,Col}Size
+    void DoDisableLineResize(int line, wxGridFixedIndicesSet *& setFixed);
+    bool DoCanResizeLine(int line, const wxGridFixedIndicesSet *setFixed) const;
+
+
+
+    // these sets contain the indices of fixed, i.e. non-resizable
+    // interactively, grid rows or columns and are NULL if there are no fixed
+    // elements (which is the default)
+    wxGridFixedIndicesSet *m_setFixedRows,
+                          *m_setFixedCols;
+
     DECLARE_DYNAMIC_CLASS( wxGrid )
     DECLARE_EVENT_TABLE()
     wxDECLARE_NO_COPY_CLASS(wxGrid);
@@ -2109,7 +2266,7 @@ public:
     // more than once
     void Create(wxGrid *grid)
     {
-        wxASSERT_MSG( !m_grid, _T("shouldn't be called more than once") );
+        wxASSERT_MSG( !m_grid, wxT("shouldn't be called more than once") );
 
         Init(grid);
     }
@@ -2465,9 +2622,9 @@ extern const int wxEVT_GRID_CREATE_CELL;
 extern const int wxEVT_GRID_CHANGE_LABELS;
 extern const int wxEVT_GRID_CHANGE_SEL_LABEL;
 
-#define EVT_GRID_CREATE_CELL(fn)      DECLARE_EVENT_TABLE_ENTRY( wxEVT_GRID_CREATE_CELL,      wxID_ANY, wxID_ANY, (wxObjectEventFunction) (wxEventFunction)  wxStaticCastEvent( wxGridEventFunction, &fn ), NULL ),
-#define EVT_GRID_CHANGE_LABELS(fn)    DECLARE_EVENT_TABLE_ENTRY( wxEVT_GRID_CHANGE_LABELS,    wxID_ANY, wxID_ANY, (wxObjectEventFunction) (wxEventFunction)  wxStaticCastEvent( wxGridEventFunction, &fn ), NULL ),
-#define EVT_GRID_CHANGE_SEL_LABEL(fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_GRID_CHANGE_SEL_LABEL, wxID_ANY, wxID_ANY, (wxObjectEventFunction) (wxEventFunction)  wxStaticCastEvent( wxGridEventFunction, &fn ), NULL ),
+#define EVT_GRID_CREATE_CELL(fn)      wxDECLARE_EVENT_TABLE_ENTRY( wxEVT_GRID_CREATE_CELL,      wxID_ANY, wxID_ANY, (wxObjectEventFunction) (wxEventFunction)  wxStaticCastEvent( wxGridEventFunction, &fn ), NULL ),
+#define EVT_GRID_CHANGE_LABELS(fn)    wxDECLARE_EVENT_TABLE_ENTRY( wxEVT_GRID_CHANGE_LABELS,    wxID_ANY, wxID_ANY, (wxObjectEventFunction) (wxEventFunction)  wxStaticCastEvent( wxGridEventFunction, &fn ), NULL ),
+#define EVT_GRID_CHANGE_SEL_LABEL(fn) wxDECLARE_EVENT_TABLE_ENTRY( wxEVT_GRID_CHANGE_SEL_LABEL, wxID_ANY, wxID_ANY, (wxObjectEventFunction) (wxEventFunction)  wxStaticCastEvent( wxGridEventFunction, &fn ), NULL ),
 
 #endif