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62960a2c6e
wxWidgets/interface/wx/grid.h
Vadim Zeitlin 62960a2c6e Document wxGridCellAttrProvider. 
Added basic documentation for wxGridCellAttrProvider and
wxGridCellAttr::wxAttrKind enum used by it.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61918 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2009-09-14 00:45:18 +00:00

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/////////////////////////////////////////////////////////////////////////////
// Name: grid.h
// Purpose: interface of wxGrid and related classes
// Author: wxWidgets team
// RCS-ID: $Id$
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
/**
@class wxGridCellRenderer
This class is responsible for actually drawing the cell in the grid. You
may pass it to the wxGridCellAttr (below) to change the format of one given
cell or to wxGrid::SetDefaultRenderer() to change the view of all cells.
This is an abstract class, and you will normally use one of the predefined
derived classes or derive your own class from it.
@library{wxadv}
@category{grid}
@see wxGridCellBoolRenderer, wxGridCellFloatRenderer,
wxGridCellNumberRenderer, wxGridCellStringRenderer
*/
class wxGridCellRenderer
{
public:
/**
This function must be implemented in derived classes to return a copy
of itself.
*/
virtual wxGridCellRenderer* Clone() const = 0;
/**
Draw the given cell on the provided DC inside the given rectangle using
the style specified by the attribute and the default or selected state
corresponding to the isSelected value.
This pure virtual function has a default implementation which will
prepare the DC using the given attribute: it will draw the rectangle
with the background colour from attr and set the text colour and font.
*/
virtual void Draw(wxGrid& grid, wxGridCellAttr& attr, wxDC& dc,
const wxRect& rect, int row, int col,
bool isSelected) = 0;
/**
Get the preferred size of the cell for its contents.
*/
virtual wxSize GetBestSize(wxGrid& grid, wxGridCellAttr& attr, wxDC& dc,
int row, int col) = 0;
};
/**
@class wxGridCellBoolRenderer
This class may be used to format boolean data in a cell.
@library{wxadv}
@category{grid}
@see wxGridCellRenderer, wxGridCellFloatRenderer, wxGridCellNumberRenderer,
wxGridCellStringRenderer
*/
class wxGridCellBoolRenderer : public wxGridCellRenderer
{
public:
/**
Default constructor.
*/
wxGridCellBoolRenderer();
};
/**
@class wxGridCellFloatRenderer
This class may be used to format floating point data in a cell.
@library{wxadv}
@category{grid}
@see wxGridCellRenderer, wxGridCellBoolRenderer, wxGridCellNumberRenderer,
wxGridCellStringRenderer
*/
class wxGridCellFloatRenderer : public wxGridCellStringRenderer
{
public:
/**
@param width
Minimum number of characters to be shown.
@param precision
Number of digits after the decimal dot.
*/
wxGridCellFloatRenderer(int width = -1, int precision = -1);
/**
Returns the precision.
*/
int GetPrecision() const;
/**
Returns the width.
*/
int GetWidth() const;
/**
Parameters string format is "width[,precision]".
*/
virtual void SetParameters(const wxString& params);
/**
Sets the precision.
*/
void SetPrecision(int precision);
/**
Sets the width.
*/
void SetWidth(int width);
};
/**
@class wxGridCellNumberRenderer
This class may be used to format integer data in a cell.
@library{wxadv}
@category{grid}
@see wxGridCellRenderer, wxGridCellBoolRenderer, wxGridCellFloatRenderer,
wxGridCellStringRenderer
*/
class wxGridCellNumberRenderer : public wxGridCellStringRenderer
{
public:
/**
Default constructor.
*/
wxGridCellNumberRenderer();
};
/**
@class wxGridCellStringRenderer
This class may be used to format string data in a cell; it is the default
for string cells.
@library{wxadv}
@category{grid}
@see wxGridCellRenderer, wxGridCellBoolRenderer, wxGridCellFloatRenderer,
wxGridCellNumberRenderer
*/
class wxGridCellStringRenderer : public wxGridCellRenderer
{
public:
/**
Default constructor.
*/
wxGridCellStringRenderer();
};
/**
@class wxGridCellEditor
This class is responsible for providing and manipulating the in-place edit
controls for the grid. Instances of wxGridCellEditor (actually, instances
of derived classes since it is an abstract class) can be associated with
the cell attributes for individual cells, rows, columns, or even for the
entire grid.
@library{wxadv}
@category{grid}
@see wxGridCellBoolEditor, wxGridCellChoiceEditor, wxGridCellFloatEditor,
wxGridCellNumberEditor, wxGridCellTextEditor
*/
class wxGridCellEditor
{
public:
/**
Default constructor.
*/
wxGridCellEditor();
/**
Fetch the value from the table and prepare the edit control to begin
editing.
This function should save the original value of the grid cell at the
given @a row and @a col and show the control allowing the user to
change it.
@see EndEdit()
*/
virtual void BeginEdit(int row, int col, wxGrid* grid) = 0;
/**
Create a new object which is the copy of this one.
*/
virtual wxGridCellEditor* Clone() const = 0;
/**
Creates the actual edit control.
*/
virtual void Create(wxWindow* parent, wxWindowID id,
wxEvtHandler* evtHandler) = 0;
/**
Final cleanup.
*/
virtual void Destroy();
/**
End editing the cell.
This function must check if the current value of the editing control is
valid and different from the original value (available as @a oldval in
its string form and possibly saved internally using its real type by
BeginEdit()). If it isn't, it just returns @false, otherwise it must do
the following:
# Save the new value internally so that ApplyEdit() could apply it.
# Fill @a newval (which is never @NULL) with the string
representation of the new value.
# Return @true
Notice that it must @em not modify the grid as the change could still
be vetoed.
If the user-defined wxEVT_GRID_CELL_CHANGING event handler doesn't veto
this change, ApplyEdit() will be called next.
*/
virtual bool EndEdit(int row, int col, const wxGrid* grid,
const wxString& oldval, wxString* newval) = 0;
/**
Effectively save the changes in the grid.
This function should save the value of the control in the grid. It is
called only after EndEdit() returns @true.
*/
virtual void ApplyEdit(int row, int col, wxGrid* grid) = 0;
/**
Some types of controls on some platforms may need some help with the
Return key.
*/
virtual void HandleReturn(wxKeyEvent& event);
/**
Returns @true if the edit control has been created.
*/
bool IsCreated();
/**
Draws the part of the cell not occupied by the control: the base class
version just fills it with background colour from the attribute.
*/
virtual void PaintBackground(const wxRect& rectCell, wxGridCellAttr* attr);
/**
Reset the value in the control back to its starting value.
*/
virtual void Reset() = 0;
/**
Size and position the edit control.
*/
virtual void SetSize(const wxRect& rect);
/**
Show or hide the edit control, use the specified attributes to set
colours/fonts for it.
*/
virtual void Show(bool show, wxGridCellAttr* attr = NULL);
/**
If the editor is enabled by clicking on the cell, this method will be
called.
*/
virtual void StartingClick();
/**
If the editor is enabled by pressing keys on the grid, this will be
called to let the editor do something about that first key if desired.
*/
virtual void StartingKey(wxKeyEvent& event);
protected:
/**
The destructor is private because only DecRef() can delete us.
*/
virtual ~wxGridCellEditor();
};
/**
@class wxGridCellBoolEditor
Grid cell editor for boolean data.
@library{wxadv}
@category{grid}
@see wxGridCellEditor, wxGridCellChoiceEditor, wxGridCellFloatEditor,
wxGridCellNumberEditor, wxGridCellTextEditor
*/
class wxGridCellBoolEditor : public wxGridCellEditor
{
public:
/**
Default constructor.
*/
wxGridCellBoolEditor();
/**
Returns @true if the given @a value is equal to the string
representation of the truth value we currently use (see
UseStringValues()).
*/
static bool IsTrueValue(const wxString& value);
/**
This method allows you to customize the values returned by GetValue()
for the cell using this editor. By default, the default values of the
arguments are used, i.e. @c "1" is returned if the cell is checked and
an empty string otherwise.
*/
static void UseStringValues(const wxString& valueTrue = "1",
const wxString& valueFalse = wxEmptyString);
};
/**
@class wxGridCellChoiceEditor
Grid cell editor for string data providing the user a choice from a list of
strings.
@library{wxadv}
@category{grid}
@see wxGridCellEditor, wxGridCellBoolEditor, wxGridCellFloatEditor,
wxGridCellNumberEditor, wxGridCellTextEditor
*/
class wxGridCellChoiceEditor : public wxGridCellEditor
{
public:
/**
@param count
Number of strings from which the user can choose.
@param choices
An array of strings from which the user can choose.
@param allowOthers
If allowOthers is @true, the user can type a string not in choices
array.
*/
wxGridCellChoiceEditor(size_t count = 0,
const wxString choices[] = NULL,
bool allowOthers = false);
/**
@param choices
An array of strings from which the user can choose.
@param allowOthers
If allowOthers is @true, the user can type a string not in choices
array.
*/
wxGridCellChoiceEditor(const wxArrayString& choices,
bool allowOthers = false);
/**
Parameters string format is "item1[,item2[...,itemN]]"
*/
virtual void SetParameters(const wxString& params);
};
/**
@class wxGridCellTextEditor
Grid cell editor for string/text data.
@library{wxadv}
@category{grid}
@see wxGridCellEditor, wxGridCellBoolEditor, wxGridCellChoiceEditor,
wxGridCellFloatEditor, wxGridCellNumberEditor
*/
class wxGridCellTextEditor : public wxGridCellEditor
{
public:
/**
Default constructor.
*/
wxGridCellTextEditor();
/**
The parameters string format is "n" where n is a number representing
the maximum width.
*/
virtual void SetParameters(const wxString& params);
};
/**
@class wxGridCellFloatEditor
The editor for floating point numbers data.
@library{wxadv}
@category{grid}
@see wxGridCellEditor, wxGridCellNumberEditor, wxGridCellBoolEditor,
wxGridCellTextEditor, wxGridCellChoiceEditor
*/
class wxGridCellFloatEditor : public wxGridCellTextEditor
{
public:
/**
@param width
Minimum number of characters to be shown.
@param precision
Number of digits after the decimal dot.
*/
wxGridCellFloatEditor(int width = -1, int precision = -1);
/**
Parameters string format is "width,precision"
*/
virtual void SetParameters(const wxString& params);
};
/**
@class wxGridCellNumberEditor
Grid cell editor for numeric integer data.
@library{wxadv}
@category{grid}
@see wxGridCellEditor, wxGridCellBoolEditor, wxGridCellChoiceEditor,
wxGridCellFloatEditor, wxGridCellTextEditor
*/
class wxGridCellNumberEditor : public wxGridCellTextEditor
{
public:
/**
Allows you to specify the range for acceptable data. Values equal to
-1 for both @a min and @a max indicate that no range checking should be
done.
*/
wxGridCellNumberEditor(int min = -1, int max = -1);
/**
Parameters string format is "min,max".
*/
virtual void SetParameters(const wxString& params);
protected:
/**
If the return value is @true, the editor uses a wxSpinCtrl to get user
input, otherwise it uses a wxTextCtrl.
*/
bool HasRange() const;
/**
String representation of the value.
*/
wxString GetString() const;
};
/**
@class wxGridCellAttr
This class can be used to alter the cells' appearance in the grid by
changing their attributes from the defaults. An object of this class may be
returned by wxGridTableBase::GetAttr().
@library{wxadv}
@category{grid}
*/
class wxGridCellAttr
{
public:
/**
Kind of the attribute to retrieve.
@see wxGridCellAttrProvider::GetAttr(), wxGridTableBase::GetAttr()
*/
enum wxAttrKind
{
/// Return the combined effective attribute for the cell.
Any,
/// Return the attribute explicitly set for this cell.
Cell,
/// Return the attribute set for this cells row.
Row,
/// Return the attribute set for this cells column.
Col
};
/**
Default constructor.
*/
wxGridCellAttr(wxGridCellAttr* attrDefault = NULL);
/**
Constructor specifying some of the often used attributes.
*/
wxGridCellAttr(const wxColour& colText, const wxColour& colBack,
const wxFont& font, int hAlign, int vAlign);
/**
Creates a new copy of this object.
*/
wxGridCellAttr* Clone() const;
/**
This class is reference 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 DecRef();
/**
See SetAlignment() for the returned values.
*/
void GetAlignment(int* hAlign, int* vAlign) const;
/**
Returns the background colour.
*/
const wxColour& GetBackgroundColour() const;
/**
Returns the cell editor.
*/
wxGridCellEditor* GetEditor(const wxGrid* grid, int row, int col) const;
/**
Returns the font.
*/
const wxFont& GetFont() const;
/**
Returns the cell renderer.
*/
wxGridCellRenderer* GetRenderer(const wxGrid* grid, int row, int col) const;
/**
Returns the text colour.
*/
const wxColour& GetTextColour() const;
/**
Returns @true if this attribute has a valid alignment set.
*/
bool HasAlignment() const;
/**
Returns @true if this attribute has a valid background colour set.
*/
bool HasBackgroundColour() const;
/**
Returns @true if this attribute has a valid cell editor set.
*/
bool HasEditor() const;
/**
Returns @true if this attribute has a valid font set.
*/
bool HasFont() const;
/**
Returns @true if this attribute has a valid cell renderer set.
*/
bool HasRenderer() const;
/**
Returns @true if this attribute has a valid text colour set.
*/
bool HasTextColour() const;
/**
This class is reference 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();
/**
Returns @true if this cell is set as read-only.
*/
bool IsReadOnly() const;
/**
Sets the alignment. @a hAlign can be one of @c wxALIGN_LEFT,
@c wxALIGN_CENTRE or @c wxALIGN_RIGHT and @a vAlign can be one of
@c wxALIGN_TOP, @c wxALIGN_CENTRE or @c wxALIGN_BOTTOM.
*/
void SetAlignment(int hAlign, int vAlign);
/**
Sets the background colour.
*/
void SetBackgroundColour(const wxColour& colBack);
/**
@todo Needs documentation.
*/
void SetDefAttr(wxGridCellAttr* defAttr);
/**
Sets the editor to be used with the cells with this attribute.
*/
void SetEditor(wxGridCellEditor* editor);
/**
Sets the font.
*/
void SetFont(const wxFont& font);
/**
Sets the cell as read-only.
*/
void SetReadOnly(bool isReadOnly = true);
/**
Sets the renderer to be used for cells with this attribute. Takes
ownership of the pointer.
*/
void SetRenderer(wxGridCellRenderer* renderer);
/**
Sets the text colour.
*/
void SetTextColour(const wxColour& colText);
};
/**
Class providing attributes to be used for the grid cells.
This class both defines an interface which grid cell attributes providers
should implement -- and which can be implemented differently in derived
classes -- and a default implementation of this interface which is often
good enough to be used without modification, especially with not very large
grids for which the efficiency of attributes storage hardly matters (see
the discussion below).
An object of this class can be associated with a wxGrid using
wxGridTableBase::SetAttrProvider() but it's not necessary to call it if you
intend to use the default provider as it is used by wxGridTableBase by
default anyhow.
Notice that while attributes provided by this class can be set for
individual cells using SetAttr() or the entire rows or columns using
SetRowAttr() and SetColAttr() they are always retrieved using GetAttr()
function.
The default implementation of this class stores the attributes passed to
its SetAttr(), SetRowAttr() and SetColAttr() in a straightforward way. A
derived class may use its knowledge about how the attributes are used in
your program to implement it much more efficiently: for example, using a
special background colour for all even-numbered rows can be implemented by
simply returning the same attribute from GetAttr() if the row number is
even instead of having to store N/2 row attributes where N is the total
number of rows in the grid.
Notice that objects of this class can't be copied.
*/
class wxGridCellAttrProvider : public wxClientDataContainer
{
public:
/// Trivial default constructor.
wxGridCellAttrProvider();
/// Destructor releases any attributes held by this class.
virtual ~wxGridCellAttrProvider();
/**
Get the attribute to use for the specified cell.
If wxGridCellAttr::Any is used as @a kind value, this function combines
the attributes set for this cell using SetAttr() and those for its row
or column (set with SetRowAttr() or SetColAttr() respectively), with
the cell attribute having the highest precedence.
Notice that the caller must call DecRef() on the returned pointer if it
is non-@NULL.
@param row
The row of the cell.
@param col
The column of the cell.
@param kind
The kind of the attribute to return.
@return
The attribute to use which should be DecRef()'d by caller or @NULL
if no attributes are defined for this cell.
*/
virtual wxGridCellAttr *GetAttr(int row, int col,
wxGridCellAttr::wxAttrKind kind) const;
/**
Setting attributes.
All these functions take ownership of the attribute passed to them,
i.e. will call DecRef() on it themselves later and so it should not be
destroyed by the caller. And the attribute can be @NULL to reset a
previously set value.
*/
//@{
/// Set attribute for the specified cell.
virtual void SetAttr(wxGridCellAttr *attr, int row, int col);
/// Set attribute for the specified row.
virtual void SetRowAttr(wxGridCellAttr *attr, int row);
/// Set attribute for the specified column.
virtual void SetColAttr(wxGridCellAttr *attr, int col);
//@}
};
/**
@class wxGridTableBase
The almost abstract base class for grid tables.
A grid table is responsible for storing the grid data and, indirectly, grid
cell attributes. The data can be stored in the way most convenient for the
application but has to be provided in string form to wxGrid. It is also
possible to provide cells values in other formats if appropriate, e.g. as
numbers.
This base class is not quite abstract as it implements a trivial strategy
for storing the attributes by forwarding it to wxGridCellAttrProvider and
also provides stubs for some other functions. However it does have a number
of pure virtual methods which must be implemented in the derived classes.
@see wxGridStringTable
@library{wxadv}
@category{grid}
*/
class wxGridTableBase : public wxObject
{
public:
/**
Default constructor.
*/
wxGridTableBase();
/**
Destructor frees the attribute provider if it was created.
*/
virtual ~wxGridTableBase();
/**
Must be overridden to return the number of rows in the table.
For backwards compatibility reasons, this method is not const.
Use GetRowsCount() instead of it in const methods of derived table
classes.
*/
virtual int GetNumberRows() = 0;
/**
Must be overridden to return the number of columns in the table.
For backwards compatibility reasons, this method is not const.
Use GetColsCount() instead of it in const methods of derived table
classes,
*/
virtual int GetNumberCols() = 0;
/**
Return the number of rows in the table.
This method is not virtual and is only provided as a convenience for
the derived classes which can't call GetNumberRows() without a
@c const_cast from their const methods.
*/
int GetRowsCount() const;
/**
Return the number of columns in the table.
This method is not virtual and is only provided as a convenience for
the derived classes which can't call GetNumberCols() without a
@c const_cast from their const methods.
*/
int GetColsCount() const;
/**
@name Table Cell Accessors
*/
//@{
/**
May be overridden to implement testing for empty cells.
This method is used by the grid to test if the given cell is not used
and so whether a neighbouring cell may overflow into it. By default it
only returns true if the value of the given cell, as returned by
GetValue(), is empty.
*/
virtual bool IsEmptyCell(int row, int col);
/**
Same as IsEmptyCell() but taking wxGridCellCoords.
Notice that this method is not virtual, only IsEmptyCell() should be
overridden.
*/
bool IsEmpty(const wxGridCellCoords& coords);
/**
Must be overridden to implement accessing the table values as text.
*/
virtual wxString GetValue(int row, int col) = 0;
/**
Must be overridden to implement setting the table values as text.
*/
virtual void SetValue(int row, int col, const wxString& value) = 0;
/**
Returns the type of the value in the given cell.
By default all cells are strings and this method returns
@c wxGRID_VALUE_STRING.
*/
virtual wxString GetTypeName(int row, int col);
/**
Returns true if the value of the given cell can be accessed as if it
were of the specified type.
By default the cells can only be accessed as strings. Note that a cell
could be accessible in different ways, e.g. a numeric cell may return
@true for @c wxGRID_VALUE_NUMBER but also for @c wxGRID_VALUE_STRING
indicating that the value can be coerced to a string form.
*/
virtual bool CanGetValueAs(int row, int col, const wxString& typeName);
/**
Returns true if the value of the given cell can be set as if it were of
the specified type.
@see CanGetValueAs()
*/
virtual bool CanSetValueAs(int row, int col, const wxString& typeName);
/**
Returns the value of the given cell as a long.
This should only be called if CanGetValueAs() returns @true when called
with @c wxGRID_VALUE_NUMBER argument. Default implementation always
return 0.
*/
virtual long GetValueAsLong(int row, int col);
/**
Returns the value of the given cell as a double.
This should only be called if CanGetValueAs() returns @true when called
with @c wxGRID_VALUE_FLOAT argument. Default implementation always
return 0.0.
*/
virtual double GetValueAsDouble(int row, int col);
/**
Returns the value of the given cell as a boolean.
This should only be called if CanGetValueAs() returns @true when called
with @c wxGRID_VALUE_BOOL argument. Default implementation always
return false.
*/
virtual bool GetValueAsBool(int row, int col);
/**
Returns the value of the given cell as a user-defined type.
This should only be called if CanGetValueAs() returns @true when called
with @a typeName. Default implementation always return @NULL.
*/
virtual void *GetValueAsCustom(int row, int col, const wxString& typeName);
/**
Sets the value of the given cell as a long.
This should only be called if CanSetValueAs() returns @true when called
with @c wxGRID_VALUE_NUMBER argument. Default implementation doesn't do
anything.
*/
virtual void SetValueAsLong(int row, int col, long value);
/**
Sets the value of the given cell as a double.
This should only be called if CanSetValueAs() returns @true when called
with @c wxGRID_VALUE_FLOAT argument. Default implementation doesn't do
anything.
*/
virtual void SetValueAsDouble(int row, int col, double value);
/**
Sets the value of the given cell as a boolean.
This should only be called if CanSetValueAs() returns @true when called
with @c wxGRID_VALUE_BOOL argument. Default implementation doesn't do
anything.
*/
virtual void SetValueAsBool( int row, int col, bool value );
/**
Sets the value of the given cell as a user-defined type.
This should only be called if CanSetValueAs() returns @true when called
with @a typeName. Default implementation doesn't do anything.
*/
virtual void SetValueAsCustom(int row, int col, const wxString& typeName,
void *value);
//@}
/**
Called by the grid when the table is associated with it.
The default implementation stores the pointer and returns it from its
GetView() and so only makes sense if the table cannot be associated
with more than one grid at a time.
*/
virtual void SetView(wxGrid *grid);
/**
Returns the last grid passed to SetView().
*/
virtual wxGrid *GetView() const;
/**
@name Table Structure Modifiers
Notice that none of these functions are pure virtual as they don't have
to be implemented if the table structure is never modified after
creation, i.e. neither rows nor columns are never added or deleted but
that you do need to implement them if they are called, i.e. if your
code either calls them directly or uses the matching wxGrid methods, as
by default they simply do nothing which is definitely inappropriate.
*/
//@{
/**
Clear the table contents.
This method is used by wxGrid::ClearGrid().
*/
virtual void Clear();
/**
Insert additional rows into the table.
@param pos
The position of the first new row.
@param numRows
The number of rows to insert.
*/
virtual bool InsertRows(size_t pos = 0, size_t numRows = 1);
/**
Append additional rows at the end of the table.
This method is provided in addition to InsertRows() as some data models
may only support appending rows to them but not inserting them at
arbitrary locations. In such case you may implement this method only
and leave InsertRows() unimplemented.
@param numRows
The number of rows to add.
*/
virtual bool AppendRows(size_t numRows = 1);
/**
Delete rows from the table.
@param pos
The first row to delete.
@param numRows
The number of rows to delete.
*/
virtual bool DeleteRows(size_t pos = 0, size_t numRows = 1);
/**
Exactly the same as InsertRows() but for columns.
*/
virtual bool InsertCols(size_t pos = 0, size_t numCols = 1);
/**
Exactly the same as AppendRows() but for columns.
*/
virtual bool AppendCols(size_t numCols = 1);
/**
Exactly the same as DeleteRows() but for columns.
*/
virtual bool DeleteCols(size_t pos = 0, size_t numCols = 1);
//@}
/**
@name Table Row and Column Labels
By default the numbers are used for labeling rows and Latin letters for
labeling columns. If the table has more than 26 columns, the pairs of
letters are used starting from the 27-th one and so on, i.e. the
sequence of labels is A, B, ..., Z, AA, AB, ..., AZ, BA, ..., ..., ZZ,
AAA, ...
*/
//@{
/**
Return the label of the specified row.
*/
virtual wxString GetRowLabelValue(int row);
/**
Return the label of the specified column.
*/
virtual wxString GetColLabelValue(int col);
/**
Set the given label for the specified row.
The default version does nothing, i.e. the label is not stored. You
must override this method in your derived class if you wish
wxGrid::SetRowLabelValue() to work.
*/
virtual void SetRowLabelValue(int row, const wxString& label);
/**
Exactly the same as SetRowLabelValue() but for columns.
*/
virtual void SetColLabelValue(int col, const wxString& label);
//@}
/**
@name Attributes Management
By default the attributes management is delegated to
wxGridCellAttrProvider class. You may override the methods in this
section to handle the attributes directly if, for example, they can be
computed from the cell values.
*/
//@{
/**
Associate this attributes provider with the table.
The table takes ownership of @a attrProvider pointer and will delete it
when it doesn't need it any more. The pointer can be @NULL, however
this won't disable attributes management in the table but will just
result in a default attributes being recreated the next time any of the
other functions in this section is called. To completely disable the
attributes support, should this be needed, you need to override
CanHaveAttributes() to return @false.
*/
void SetAttrProvider(wxGridCellAttrProvider *attrProvider);
/**
Returns the attribute provider currently being used.
This function may return @NULL if the attribute provider hasn't been
neither associated with this table by SetAttrProvider() nor created on
demand by any other methods.
*/
wxGridCellAttrProvider *GetAttrProvider() const;
/**
Return the attribute for the given cell.
By default this function is simply forwarded to
wxGridCellAttrProvider::GetAttr() but it may be overridden to handle
attributes directly in the table.
*/
virtual wxGridCellAttr *GetAttr(int row, int col,
wxGridCellAttr::wxAttrKind kind);
/**
Set attribute of the specified cell.
By default this function is simply forwarded to
wxGridCellAttrProvider::SetAttr().
The table takes ownership of @a attr, i.e. will call DecRef() on it.
*/
virtual void SetAttr(wxGridCellAttr* attr, int row, int col);
/**
Set attribute of the specified row.
By default this function is simply forwarded to
wxGridCellAttrProvider::SetRowAttr().
The table takes ownership of @a attr, i.e. will call DecRef() on it.
*/
virtual void SetRowAttr(wxGridCellAttr *attr, int row);
/**
Set attribute of the specified column.
By default this function is simply forwarded to
wxGridCellAttrProvider::SetColAttr().
The table takes ownership of @a attr, i.e. will call DecRef() on it.
*/
virtual void SetColAttr(wxGridCellAttr *attr, int col);
//@}
/**
Returns true if this table supports attributes or false otherwise.
By default, the table automatically creates a wxGridCellAttrProvider
when this function is called if it had no attribute provider before and
returns @true.
*/
virtual bool CanHaveAttributes();
};
/**
@class wxGridSizesInfo
wxGridSizesInfo stores information about sizes of all wxGrid rows or
columns.
It assumes that most of the rows or columns (which are both called elements
here as the difference between them doesn't matter at this class level)
have the default size and so stores it separately. And it uses a wxHashMap
to store the sizes of all elements which have the non-default size.
This structure is particularly useful for serializing the sizes of all
wxGrid elements at once.
@library{wxadv}
@category{grid}
*/
struct wxGridSizesInfo
{
/**
Default constructor.
m_sizeDefault and m_customSizes must be initialized later.
*/
wxGridSizesInfo();
/**
Constructor.
This constructor is used by wxGrid::GetRowSizes() and GetColSizes()
methods. User code will usually use the default constructor instead.
@param defSize
The default element size.
@param allSizes
Array containing the sizes of @em all elements, including those
which have the default size.
*/
wxGridSizesInfo(int defSize, const wxArrayInt& allSizes);
/**
Get the element size.
@param pos
The index of the element.
@return
The size for this element, using m_customSizes if @a pos is in it
or m_sizeDefault otherwise.
*/
int GetSize(unsigned pos) const;
/// Default size
int m_sizeDefault;
/**
Map with element indices as keys and their sizes as values.
This map only contains the elements with non-default size.
*/
wxUnsignedToIntHashMap m_customSizes;
};
/**
@class wxGrid
wxGrid and its related classes are used for displaying and editing tabular
data. They provide a rich set of features for display, editing, and
interacting with a variety of data sources. For simple applications, and to
help you get started, wxGrid is the only class you need to refer to
directly. It will set up default instances of the other classes and manage
them for you. For more complex applications you can derive your own classes
for custom grid views, grid data tables, cell editors and renderers. The
@ref overview_grid has examples of simple and more complex applications,
explains the relationship between the various grid classes and has a
summary of the keyboard shortcuts and mouse functions provided by wxGrid.
A wxGridTableBase class holds the actual data to be displayed by a wxGrid
class. One or more wxGrid classes may act as a view for one table class.
The default table class is called wxGridStringTable and holds an array of
strings. An instance of such a class is created by CreateGrid().
wxGridCellRenderer is the abstract base class for rendereing contents in a
cell. The following renderers are predefined:
- wxGridCellBoolRenderer
- wxGridCellFloatRenderer
- wxGridCellNumberRenderer
- wxGridCellStringRenderer
The look of a cell can be further defined using wxGridCellAttr. An object
of this type may be returned by wxGridTableBase::GetAttr().
wxGridCellEditor is the abstract base class for editing the value of a
cell. The following editors are predefined:
- wxGridCellBoolEditor
- wxGridCellChoiceEditor
- wxGridCellFloatEditor
- wxGridCellNumberEditor
- wxGridCellTextEditor
Please see wxGridEvent, wxGridSizeEvent, wxGridRangeSelectEvent, and
wxGridEditorCreatedEvent for the documentation of all event types you can
use with wxGrid.
@library{wxadv}
@category{grid}
@see @ref overview_grid, wxGridUpdateLocker
*/
class wxGrid : public wxScrolledWindow
{
public:
/**
Different selection modes supported by the grid.
*/
enum wxGridSelectionModes
{
/**
The default selection mode allowing selection of the individual
cells as well as of the entire rows and columns.
*/
wxGridSelectCells,
/**
The selection mode allowing the selection of the entire rows only.
The user won't be able to select any cells or columns in this mode.
*/
wxGridSelectRows,
/**
The selection mode allowing the selection of the entire columns only.
The user won't be able to select any cells or rows in this mode.
*/
wxGridSelectColumns
};
/**
@name Constructors and Initialization
*/
//@{
/**
Default constructor.
You must call Create() to really create the grid window and also call
CreateGrid() or SetTable() to initialize the grid contents.
*/
wxGrid();
/**
Constructor creating the grid window.
You must call either CreateGrid() or SetTable() to initialize the grid
contents before using it.
*/
wxGrid(wxWindow* parent, wxWindowID id,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = wxWANTS_CHARS,
const wxString& name = wxGridNameStr);
/**
Destructor.
This will also destroy the associated grid table unless you passed a
table object to the grid and specified that the grid should not take
ownership of the table (see SetTable()).
*/
virtual ~wxGrid();
/**
Creates the grid window for an object initialized using the default
constructor.
You must call either CreateGrid() or SetTable() to initialize the grid
contents before using it.
*/
bool Create(wxWindow* parent, wxWindowID id,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = wxWANTS_CHARS,
const wxString& name = wxGridNameStr);
/**
Creates a grid with the specified initial number of rows and columns.
Call this directly after the grid constructor. When you use this
function wxGrid will create and manage a simple table of string values
for you. All of the grid data will be stored in memory.
For applications with more complex data types or relationships, or for
dealing with very large datasets, you should derive your own grid table
class and pass a table object to the grid with SetTable().
*/
bool CreateGrid(int numRows, int numCols,
wxGridSelectionModes selmode = wxGridSelectCells);
/**
Passes a pointer to a custom grid table to be used by the grid.
This should be called after the grid constructor and before using the
grid object. If @a takeOwnership is set to @true then the table will be
deleted by the wxGrid destructor.
Use this function instead of CreateGrid() when your application
involves complex or non-string data or data sets that are too large to
fit wholly in memory.
*/
bool SetTable(wxGridTableBase* table, bool takeOwnership = false,
wxGridSelectionModes selmode = wxGridSelectCells);
//@}
/**
@name Grid Line Formatting
*/
//@{
/**
Turns the drawing of grid lines on or off.
*/
void EnableGridLines(bool enable = true);
/**
Returns the pen used for vertical grid lines.
This virtual function may be overridden in derived classes in order to
change the appearance of individual grid lines for the given column
@a col.
See GetRowGridLinePen() for an example.
*/
virtual wxPen GetColGridLinePen(int col);
/**
Returns the pen used for grid lines.
This virtual function may be overridden in derived classes in order to
change the appearance of grid lines. Note that currently the pen width
must be 1.
@see GetColGridLinePen(), GetRowGridLinePen()
*/
virtual wxPen GetDefaultGridLinePen();
/**
Returns the colour used for grid lines.
@see GetDefaultGridLinePen()
*/
wxColour GetGridLineColour() const;
/**
Returns the pen used for horizontal grid lines.
This virtual function may be overridden in derived classes in order to
change the appearance of individual grid line for the given @a row.
Example:
@code
// in a grid displaying music notation, use a solid black pen between
// octaves (C0=row 127, C1=row 115 etc.)
wxPen MidiGrid::GetRowGridLinePen(int row)
{
if ( row % 12 == 7 )
return wxPen(*wxBLACK, 1, wxSOLID);
else
return GetDefaultGridLinePen();
}
@endcode
*/
virtual wxPen GetRowGridLinePen(int row);
/**
Returns @true if drawing of grid lines is turned on, @false otherwise.
*/
bool GridLinesEnabled() const;
/**
Sets the colour used to draw grid lines.
*/
void SetGridLineColour(const wxColour& colour);
//@}
/**
@name Label Values and Formatting
*/
//@{
/**
Sets the arguments to the current column label alignment values.
Horizontal alignment will be one of @c wxALIGN_LEFT, @c wxALIGN_CENTRE
or @c wxALIGN_RIGHT.
Vertical alignment will be one of @c wxALIGN_TOP, @c wxALIGN_CENTRE or
@c wxALIGN_BOTTOM.
*/
void GetColLabelAlignment(int* horiz, int* vert) const;
/**
Returns the orientation of the column labels (either @c wxHORIZONTAL or
@c wxVERTICAL).
*/
int GetColLabelTextOrientation() const;
/**
Returns the specified column label.
The default grid table class provides column labels of the form
A,B...Z,AA,AB...ZZ,AAA... If you are using a custom grid table you can
override wxGridTableBase::GetColLabelValue() to provide your own
labels.
*/
wxString GetColLabelValue(int col) const;
/**
Returns the colour used for the background of row and column labels.
*/
wxColour GetLabelBackgroundColour() const;
/**
Returns the font used for row and column labels.
*/
wxFont GetLabelFont() const;
/**
Returns the colour used for row and column label text.
*/
wxColour GetLabelTextColour() const;
/**
Returns the alignment used for row labels.
Horizontal alignment will be one of @c wxALIGN_LEFT, @c wxALIGN_CENTRE
or @c wxALIGN_RIGHT.
Vertical alignment will be one of @c wxALIGN_TOP, @c wxALIGN_CENTRE or
@c wxALIGN_BOTTOM.
*/
void GetRowLabelAlignment(int* horiz, int* vert) const;
/**
Returns the specified row label.
The default grid table class provides numeric row labels. If you are
using a custom grid table you can override
wxGridTableBase::GetRowLabelValue() to provide your own labels.
*/
wxString GetRowLabelValue(int row) const;
/**
Hides the column labels by calling SetColLabelSize() with a size of 0.
Show labels again by calling that method with a width greater than 0.
*/
void HideColLabels();
/**
Hides the row labels by calling SetRowLabelSize() with a size of 0.
The labels can be shown again by calling SetRowLabelSize() with a width
greater than 0.
*/
void HideRowLabels();
/**
Sets the horizontal and vertical alignment of column label text.
Horizontal alignment should be one of @c wxALIGN_LEFT,
@c wxALIGN_CENTRE or @c wxALIGN_RIGHT. Vertical alignment should be one
of @c wxALIGN_TOP, @c wxALIGN_CENTRE or @c wxALIGN_BOTTOM.
*/
void SetColLabelAlignment(int horiz, int vert);
/**
Sets the orientation of the column labels (either @c wxHORIZONTAL or
@c wxVERTICAL).
*/
void SetColLabelTextOrientation(int textOrientation);
/**
Set the value for the given column label.
If you are using a custom grid table you must override
wxGridTableBase::SetColLabelValue() for this to have any effect.
*/
void SetColLabelValue(int col, const wxString& value);
/**
Sets the background colour for row and column labels.
*/
void SetLabelBackgroundColour(const wxColour& colour);
/**
Sets the font for row and column labels.
*/
void SetLabelFont(const wxFont& font);
/**
Sets the colour for row and column label text.
*/
void SetLabelTextColour(const wxColour& colour);
/**
Sets the horizontal and vertical alignment of row label text.
Horizontal alignment should be one of @c wxALIGN_LEFT,
@c wxALIGN_CENTRE or @c wxALIGN_RIGHT. Vertical alignment should be one
of @c wxALIGN_TOP, @c wxALIGN_CENTRE or @c wxALIGN_BOTTOM.
*/
void SetRowLabelAlignment(int horiz, int vert);
/**
Sets the value for the given row label.
If you are using a derived grid table you must override
wxGridTableBase::SetRowLabelValue() for this to have any effect.
*/
void SetRowLabelValue(int row, const wxString& value);
/**
Call this in order to make the column labels use a native look by using
wxRendererNative::DrawHeaderButton() internally.
There is no equivalent method for drawing row columns as there is not
native look for that. This option is useful when using wxGrid for
displaying tables and not as a spread-sheet.
@see UseNativeColHeader()
*/
void SetUseNativeColLabels(bool native = true);
/**
Enable the use of native header window for column labels.
If this function is called with @true argument, a wxHeaderCtrl is used
instead to display the column labels instead of drawing them in wxGrid
code itself. This has the advantage of making the grid look and feel
perfectly the same as native applications (using SetUseNativeColLabels()
the grid can be made to look more natively but it still doesn't feel
natively, notably the column resizing and dragging still works slightly
differently as it is implemented in wxWidgets itself) but results in
different behaviour for column and row headers, for which there is no
equivalent function, and, most importantly, is unsuitable for grids
with huge numbers of columns as wxHeaderCtrl doesn't support virtual
mode. Because of this, by default the grid does not use the native
header control but you should call this function to enable it if you
are using the grid to display tabular data and don't have thousands of
columns in it.
Also note that currently @c wxEVT_GRID_LABEL_LEFT_DCLICK and
@c wxEVT_GRID_LABEL_RIGHT_DCLICK events are not generated for the column
labels if the native columns header is used (but this limitation could
possibly be lifted in the future).
*/
void UseNativeColHeader(bool native = true);
//@}
/**
@name Cell Formatting
Note that wxGridCellAttr can be used alternatively to most of these
methods. See the "Attributes Management" of wxGridTableBase.
*/
//@{
/**
Sets the arguments to the horizontal and vertical text alignment values
for the grid cell at the specified location.
Horizontal alignment will be one of @c wxALIGN_LEFT, @c wxALIGN_CENTRE
or @c wxALIGN_RIGHT.
Vertical alignment will be one of @c wxALIGN_TOP, @c wxALIGN_CENTRE or
@c wxALIGN_BOTTOM.
*/
void GetCellAlignment(int row, int col, int* horiz, int* vert) const;
/**
Returns the background colour of the cell at the specified location.
*/
wxColour GetCellBackgroundColour(int row, int col) const;
/**
Returns the font for text in the grid cell at the specified location.
*/
wxFont GetCellFont(int row, int col) const;
/**
Returns the text colour for the grid cell at the specified location.
*/
wxColour GetCellTextColour(int row, int col) const;
/**
Returns the default cell alignment.
Horizontal alignment will be one of @c wxALIGN_LEFT, @c wxALIGN_CENTRE
or @c wxALIGN_RIGHT.
Vertical alignment will be one of @c wxALIGN_TOP, @c wxALIGN_CENTRE or
@c wxALIGN_BOTTOM.
@see SetDefaultCellAlignment()
*/
void GetDefaultCellAlignment(int* horiz, int* vert) const;
/**
Returns the current default background colour for grid cells.
*/
wxColour GetDefaultCellBackgroundColour() const;
/**
Returns the current default font for grid cell text.
*/
wxFont GetDefaultCellFont() const;
/**
Returns the current default colour for grid cell text.
*/
wxColour GetDefaultCellTextColour() const;
/**
Sets the horizontal and vertical alignment for grid cell text at the
specified location.
Horizontal alignment should be one of @c wxALIGN_LEFT,
@c wxALIGN_CENTRE or @c wxALIGN_RIGHT.
Vertical alignment should be one of @c wxALIGN_TOP, @c wxALIGN_CENTRE
or @c wxALIGN_BOTTOM.
*/
void SetCellAlignment(int row, int col, int horiz, int vert);
/**
Sets the horizontal and vertical alignment for grid cell text at the
specified location.
Horizontal alignment should be one of @c wxALIGN_LEFT,
@c wxALIGN_CENTRE or @c wxALIGN_RIGHT.
Vertical alignment should be one of @c wxALIGN_TOP, @c wxALIGN_CENTRE
or @c wxALIGN_BOTTOM.
*/
void SetCellAlignment(int align, int row, int col);
/**
Set the background colour for the given cell or all cells by default.
*/
void SetCellBackgroundColour(int row, int col, const wxColour& colour);
/**
Sets the font for text in the grid cell at the specified location.
*/
void SetCellFont(int row, int col, const wxFont& font);
/**
Sets the text colour for the given cell.
*/
void SetCellTextColour(int row, int col, const wxColour& colour);
/**
Sets the text colour for the given cell.
*/
void SetCellTextColour(const wxColour& val, int row, int col);
/**
Sets the text colour for all cells by default.
*/
void SetCellTextColour(const wxColour& colour);
/**
Sets the default horizontal and vertical alignment for grid cell text.
Horizontal alignment should be one of @c wxALIGN_LEFT,
@c wxALIGN_CENTRE or @c wxALIGN_RIGHT. Vertical alignment should be one
of @c wxALIGN_TOP, @c wxALIGN_CENTRE or @c wxALIGN_BOTTOM.
*/
void SetDefaultCellAlignment(int horiz, int vert);
/**
Sets the default background colour for grid cells.
*/
void SetDefaultCellBackgroundColour(const wxColour& colour);
/**
Sets the default font to be used for grid cell text.
*/
void SetDefaultCellFont(const wxFont& font);
/**
Sets the current default colour for grid cell text.
*/
void SetDefaultCellTextColour(const wxColour& colour);
//@}
/**
@name Cell Values, Editors, and Renderers
Note that wxGridCellAttr can be used alternatively to most of these
methods. See the "Attributes Management" of wxGridTableBase.
*/
//@{
/**
Returns @true if the in-place edit control for the current grid cell
can be used and @false otherwise.
This function always returns @false for the read-only cells.
*/
bool CanEnableCellControl() const;
/**
Disables in-place editing of grid cells.
Equivalent to calling EnableCellEditControl(@false).
*/
void DisableCellEditControl();
/**
Enables or disables in-place editing of grid cell data.
The grid will issue either a @c wxEVT_GRID_EDITOR_SHOWN or
@c wxEVT_GRID_EDITOR_HIDDEN event.
*/
void EnableCellEditControl(bool enable = true);
/**
Makes the grid globally editable or read-only.
If the edit argument is @false this function sets the whole grid as
read-only. If the argument is @true the grid is set to the default
state where cells may be editable. In the default state you can set
single grid cells and whole rows and columns to be editable or
read-only via wxGridCellAttr::SetReadOnly(). For single cells you
can also use the shortcut function SetReadOnly().
For more information about controlling grid cell attributes see the
wxGridCellAttr class and the @ref overview_grid.
*/
void EnableEditing(bool edit);
/**
Returns a pointer to the editor for the cell at the specified location.
See wxGridCellEditor and the @ref overview_grid for more information
about cell editors and renderers.
The caller must call DecRef() on the returned pointer.
*/
wxGridCellEditor* GetCellEditor(int row, int col) const;
/**
Returns a pointer to the renderer for the grid cell at the specified
location.
See wxGridCellRenderer and the @ref overview_grid for more information
about cell editors and renderers.
The caller must call DecRef() on the returned pointer.
*/
wxGridCellRenderer* GetCellRenderer(int row, int col) const;
/**
Returns the string contained in the cell at the specified location.
For simple applications where a grid object automatically uses a
default grid table of string values you use this function together with
SetCellValue() to access cell values. For more complex applications
where you have derived your own grid table class that contains various
data types (e.g. numeric, boolean or user-defined custom types) then
you only use this function for those cells that contain string values.
See wxGridTableBase::CanGetValueAs() and the @ref overview_grid for
more information.
*/
wxString GetCellValue(int row, int col) const;
/**
Returns the string contained in the cell at the specified location.
For simple applications where a grid object automatically uses a
default grid table of string values you use this function together with
SetCellValue() to access cell values. For more complex applications
where you have derived your own grid table class that contains various
data types (e.g. numeric, boolean or user-defined custom types) then
you only use this function for those cells that contain string values.
See wxGridTableBase::CanGetValueAs() and the @ref overview_grid for
more information.
*/
wxString GetCellValue(const wxGridCellCoords& coords) const;
/**
Returns a pointer to the current default grid cell editor.
See wxGridCellEditor and the @ref overview_grid for more information
about cell editors and renderers.
*/
wxGridCellEditor* GetDefaultEditor() const;
/**
Returns the default editor for the specified cell.
The base class version returns the editor appropriate for the current
cell type but this method may be overridden in the derived classes to
use custom editors for some cells by default.
Notice that the same may be achieved in a usually simpler way by
associating a custom editor with the given cell or cells.
The caller must call DecRef() on the returned pointer.
*/
virtual wxGridCellEditor* GetDefaultEditorForCell(int row, int col) const;
/**
Returns the default editor for the specified cell.
The base class version returns the editor appropriate for the current
cell type but this method may be overridden in the derived classes to
use custom editors for some cells by default.
Notice that the same may be achieved in a usually simpler way by
associating a custom editor with the given cell or cells.
The caller must call DecRef() on the returned pointer.
*/
wxGridCellEditor* GetDefaultEditorForCell(const wxGridCellCoords& c) const;
/**
Returns the default editor for the cells containing values of the given
type.
The base class version returns the editor which was associated with the
specified @a typeName when it was registered RegisterDataType() but
this function may be overridden to return something different. This
allows to override an editor used for one of the standard types.
The caller must call DecRef() on the returned pointer.
*/
virtual wxGridCellEditor* GetDefaultEditorForType(const wxString& typeName) const;
/**
Returns a pointer to the current default grid cell renderer.
See wxGridCellRenderer and the @ref overview_grid for more information
about cell editors and renderers.
The caller must call DecRef() on the returned pointer.
*/
wxGridCellRenderer* GetDefaultRenderer() const;
/**
Returns the default renderer for the given cell.
The base class version returns the renderer appropriate for the current
cell type but this method may be overridden in the derived classes to
use custom renderers for some cells by default.
The caller must call DecRef() on the returned pointer.
*/
virtual wxGridCellRenderer* GetDefaultRendererForCell(int row, int col) const;
/**
Returns the default renderer for the cell containing values of the
given type.
@see GetDefaultEditorForType()
*/
virtual wxGridCellRenderer* GetDefaultRendererForType(const wxString& typeName) const;
/**
Hides the in-place cell edit control.
*/
void HideCellEditControl();
/**
Returns @true if the in-place edit control is currently enabled.
*/
bool IsCellEditControlEnabled() const;
/**
Returns @true if the current cell is read-only.
@see SetReadOnly(), IsReadOnly()
*/
bool IsCurrentCellReadOnly() const;
/**
Returns @false if the whole grid has been set as read-only or @true
otherwise.
See EnableEditing() for more information about controlling the editing
status of grid cells.
*/
bool IsEditable() const;
/**
Returns @true if the cell at the specified location can't be edited.
@see SetReadOnly(), IsCurrentCellReadOnly()
*/
bool IsReadOnly(int row, int col) const;
/**
Register a new data type.
The data types allow to naturally associate specific renderers and
editors to the cells containing values of the given type. For example,
the grid automatically registers a data type with the name
@c wxGRID_VALUE_STRING which uses wxGridCellStringRenderer and
wxGridCellTextEditor as its renderer and editor respectively -- this is
the data type used by all the cells of the default wxGridStringTable,
so this renderer and editor are used by default for all grid cells.
However if a custom table returns @c wxGRID_VALUE_BOOL from its
wxGridTableBase::GetTypeName() method, then wxGridCellBoolRenderer and
wxGridCellBoolEditor are used for it because the grid also registers a
boolean data type with this name.
And as this mechanism is completely generic, you may register your own
data types using your own custom renderers and editors. Just remember
that the table must identify a cell as being of the given type for them
to be used for this cell.
@param typeName
Name of the new type. May be any string, but if the type name is
the same as the name of an already registered type, including one
of the standard ones (which are @c wxGRID_VALUE_STRING, @c
wxGRID_VALUE_BOOL, @c wxGRID_VALUE_NUMBER, @c wxGRID_VALUE_FLOAT
and @c wxGRID_VALUE_CHOICE), then the new registration information
replaces the previously used renderer and editor.
@param renderer
The renderer to use for the cells of this type. Its ownership is
taken by the grid, i.e. it will call DecRef() on this pointer when
it doesn't need it any longer.
@param editor
The editor to use for the cells of this type. Its ownership is also
taken by the grid.
*/
void RegisterDataType(const wxString& typeName,
wxGridCellRenderer* renderer,
wxGridCellEditor* editor);
/**
Sets the value of the current grid cell to the current in-place edit
control value.
This is called automatically when the grid cursor moves from the
current cell to a new cell. It is also a good idea to call this
function when closing a grid since any edits to the final cell location
will not be saved otherwise.
*/
void SaveEditControlValue();
/**
Sets the editor for the grid cell at the specified location.
The grid will take ownership of the pointer.
See wxGridCellEditor and the @ref overview_grid for more information
about cell editors and renderers.
*/
void SetCellEditor(int row, int col, wxGridCellEditor* editor);
/**
Sets the renderer for the grid cell at the specified location.
The grid will take ownership of the pointer.
See wxGridCellRenderer and the @ref overview_grid for more information
about cell editors and renderers.
*/
void SetCellRenderer(int row, int col, wxGridCellRenderer* renderer);
/**
Sets the string value for the cell at the specified location.
For simple applications where a grid object automatically uses a
default grid table of string values you use this function together with
GetCellValue() to access cell values. For more complex applications
where you have derived your own grid table class that contains various
data types (e.g. numeric, boolean or user-defined custom types) then
you only use this function for those cells that contain string values.
See wxGridTableBase::CanSetValueAs() and the @ref overview_grid for
more information.
*/
void SetCellValue(int row, int col, const wxString& s);
/**
Sets the string value for the cell at the specified location.
For simple applications where a grid object automatically uses a
default grid table of string values you use this function together with
GetCellValue() to access cell values. For more complex applications
where you have derived your own grid table class that contains various
data types (e.g. numeric, boolean or user-defined custom types) then
you only use this function for those cells that contain string values.
See wxGridTableBase::CanSetValueAs() and the @ref overview_grid for
more information.
*/
void SetCellValue(const wxGridCellCoords& coords, const wxString& s);
/**
@deprecated Please use SetCellValue(int,int,const wxString&) or
SetCellValue(const wxGridCellCoords&,const wxString&)
instead.
Sets the string value for the cell at the specified location.
For simple applications where a grid object automatically uses a
default grid table of string values you use this function together with
GetCellValue() to access cell values. For more complex applications
where you have derived your own grid table class that contains various
data types (e.g. numeric, boolean or user-defined custom types) then
you only use this function for those cells that contain string values.
See wxGridTableBase::CanSetValueAs() and the @ref overview_grid for
more information.
*/
void SetCellValue(const wxString& val, int row, int col);
/**
Sets the specified column to display boolean values.
@see SetColFormatCustom()
*/
void SetColFormatBool(int col);
/**
Sets the specified column to display data in a custom format.
This method provides an alternative to defining a custom grid table
which would return @a typeName from its GetTypeName() method for the
cells in this column: while it doesn't really change the type of the
cells in this column, it does associate the renderer and editor used
for the cells of the specified type with them.
See the @ref overview_grid for more information on working with custom
data types.
*/
void SetColFormatCustom(int col, const wxString& typeName);
/**
Sets the specified column to display floating point values with the
given width and precision.
@see SetColFormatCustom()
*/
void SetColFormatFloat(int col, int width = -1, int precision = -1);
/**
Sets the specified column to display integer values.
@see SetColFormatCustom()
*/
void SetColFormatNumber(int col);
/**
Sets the default editor for grid cells.
The grid will take ownership of the pointer.
See wxGridCellEditor and the @ref overview_grid for more information
about cell editors and renderers.
*/
void SetDefaultEditor(wxGridCellEditor* editor);
/**
Sets the default renderer for grid cells.
The grid will take ownership of the pointer.
See wxGridCellRenderer and the @ref overview_grid for more information
about cell editors and renderers.
*/
void SetDefaultRenderer(wxGridCellRenderer* renderer);
/**
Makes the cell at the specified location read-only or editable.
@see IsReadOnly()
*/
void SetReadOnly(int row, int col, bool isReadOnly = true);
/**
Displays the in-place cell edit control for the current cell.
*/
void ShowCellEditControl();
//@}
/**
@name Column and Row Sizes
@see @ref overview_grid_resizing
*/
//@{
/**
Automatically sets the height and width of all rows and columns to fit
their contents.
*/
void AutoSize();
/**
Automatically adjusts width of the column to fit its label.
*/
void AutoSizeColLabelSize(int col);
/**
Automatically sizes the column to fit its contents. If @a setAsMin is
@true the calculated width will also be set as the minimal width for
the column.
*/
void AutoSizeColumn(int col, bool setAsMin = true);
/**
Automatically sizes all columns to fit their contents. If @a setAsMin
is @true the calculated widths will also be set as the minimal widths
for the columns.
*/
void AutoSizeColumns(bool setAsMin = true);
/**
Automatically sizes the row to fit its contents. If @a setAsMin is
@true the calculated height will also be set as the minimal height for
the row.
*/
void AutoSizeRow(int row, bool setAsMin = true);
/**
Automatically adjusts height of the row to fit its label.
*/
void AutoSizeRowLabelSize(int col);
/**
Automatically sizes all rows to fit their contents. If @a setAsMin is
@true the calculated heights will also be set as the minimal heights
for the rows.
*/
void AutoSizeRows(bool setAsMin = true);
/**
Returns the current height of the column labels.
*/
int GetColLabelSize() const;
/**
Returns the minimal width to which a column may be resized.
Use SetColMinimalAcceptableWidth() to change this value globally or
SetColMinimalWidth() to do it for individual columns.
@see GetRowMinimalAcceptableHeight()
*/
int GetColMinimalAcceptableWidth() const;
/**
Returns the width of the specified column.
*/
int GetColSize(int col) const;
/**
Returns @true if the specified column is not currently hidden.
*/
bool IsColShown(int col) const;
/**
Returns the default height for column labels.
*/
int GetDefaultColLabelSize() const;
/**
Returns the current default width for grid columns.
*/
int GetDefaultColSize() const;
/**
Returns the default width for the row labels.
*/
int GetDefaultRowLabelSize() const;
/**
Returns the current default height for grid rows.
*/
int GetDefaultRowSize() const;
/**
Returns the minimal size to which rows can be resized.
Use SetRowMinimalAcceptableHeight() to change this value globally or
SetRowMinimalHeight() to do it for individual cells.
@see GetColMinimalAcceptableWidth()
*/
int GetRowMinimalAcceptableHeight() const;
/**
Returns the current width of the row labels.
*/
int GetRowLabelSize() const;
/**
Returns the height of the specified row.
*/
int GetRowSize(int row) const;
/**
Returns @true if the specified row is not currently hidden.
*/
bool IsRowShown(int row) const;
/**
Sets the height of the column labels.
If @a height equals to @c wxGRID_AUTOSIZE then height is calculated
automatically so that no label is truncated. Note that this could be
slow for a large table.
*/
void SetColLabelSize(int height);
/**
Sets the minimal @a width to which the user can resize columns.
@see GetColMinimalAcceptableWidth()
*/
void SetColMinimalAcceptableWidth(int width);
/**
Sets the minimal @a width for the specified column @a col.
It is usually best to call this method during grid creation as calling
it later will not resize the column to the given minimal width even if
it is currently narrower than it.
@a width must be greater than the minimal acceptable column width as
returned by GetColMinimalAcceptableWidth().
*/
void SetColMinimalWidth(int col, int width);
/**
Sets the width of the specified column.
@param col
The column index.
@param width
The new column width in pixels, 0 to hide the column or -1 to fit
the column width to its label width.
*/
void SetColSize(int col, int width);
/**
Hides the specified column.
To show the column later you need to call SetColSize() with non-0
width or ShowCol().
@param col
The column index.
*/
void HideCol(int col);
/**
Shows the previously hidden column by resizing it to non-0 size.
@see HideCol(), SetColSize()
*/
void ShowCol(int col);
/**
Sets the default width for columns in the grid.
This will only affect columns subsequently added to the grid unless
@a resizeExistingCols is @true.
If @a width is less than GetColMinimalAcceptableWidth(), then the
minimal acceptable width is used instead of it.
*/
void SetDefaultColSize(int width, bool resizeExistingCols = false);
/**
Sets the default height for rows in the grid.
This will only affect rows subsequently added to the grid unless
@a resizeExistingRows is @true.
If @a height is less than GetRowMinimalAcceptableHeight(), then the
minimal acceptable heihgt is used instead of it.
*/
void SetDefaultRowSize(int height, bool resizeExistingRows = false);
/**
Sets the width of the row labels.
If @a width equals @c wxGRID_AUTOSIZE then width is calculated
automatically so that no label is truncated. Note that this could be
slow for a large table.
*/
void SetRowLabelSize(int width);
/**
Sets the minimal row @a height used by default.
See SetColMinimalAcceptableWidth() for more information.
*/
void SetRowMinimalAcceptableHeight(int height);
/**
Sets the minimal @a height for the specified @a row.
See SetColMinimalWidth() for more information.
*/
void SetRowMinimalHeight(int row, int height);
/**
Sets the height of the specified row.
See SetColSize() for more information.
*/
void SetRowSize(int row, int height);
/**
Hides the specified row.
To show the row later you need to call SetRowSize() with non-0
width or ShowRow().
@param col
The row index.
*/
void HideRow(int col);
/**
Shows the previously hidden row by resizing it to non-0 size.
@see HideRow(), SetRowSize()
*/
void ShowRow(int col);
/**
Get size information for all columns at once.
This method is useful when the information about all column widths
needs to be saved. The widths can be later restored using
SetColSizes().
@sa wxGridSizesInfo, GetRowSizes()
*/
wxGridSizesInfo GetColSizes() const;
/**
Get size information for all row at once.
@sa wxGridSizesInfo, GetColSizes()
*/
wxGridSizesInfo GetRowSizes() const;
/**
Restore all columns sizes.
This is usually called with wxGridSizesInfo object previously returned
by GetColSizes().
@sa SetRowSizes()
*/
void SetColSizes(const wxGridSizesInfo& sizeInfo);
/**
Restore all rows sizes.
@sa SetColSizes()
*/
void SetRowSizes(const wxGridSizesInfo& sizeInfo);
//@}
/**
@name User-Resizing and Dragging
Functions controlling various interactive mouse operations.
By default, columns and rows can be resized by dragging the edges of
their labels (this can be disabled using DisableDragColSize() and
DisableDragRowSize() methods). And if grid line dragging is enabled with
EnableDragGridSize() they can also be resized by dragging the right or
bottom edge of the grid cells.
Columns can also be moved to interactively change their order but this
needs to be explicitly enabled with EnableDragColMove().
*/
//@{
/**
Return @true if the dragging of cells is enabled or @false otherwise.
*/
bool CanDragCell() const;
/**
Returns @true if columns can be moved by dragging with the mouse.
Columns can be moved by dragging on their labels.
*/
bool CanDragColMove() const;
/**
Returns @true if the given column can be resized by dragging with the
mouse.
This function returns @true if resizing the columns interactively is
globally enabled, i.e. if DisableDragColSize() hadn't been called, and
if this column wasn't explicitly marked as non-resizable with
DisableColResize().
*/
bool CanDragColSize(int col) const;
/**
Return @true if the dragging of grid lines to resize rows and columns
is enabled or @false otherwise.
*/
bool CanDragGridSize() const;
/**
Returns @true if the given row can be resized by dragging with the
mouse.
This is the same as CanDragColSize() but for rows.
*/
bool CanDragRowSize(int row) const;
/**
Disable interactive resizing of the specified column.
This method allows to disable resizing of an individual column in a
grid where the columns are otherwise resizable (which is the case by
default).
Notice that currently there is no way to make some columns resizable in
a grid where columns can't be resized by default as there doesn't seem
to be any need for this in practice. There is also no way to make the
column marked as fixed using this method resizeable again because it is
supposed that fixed columns are used for static parts of the grid and
so should remain fixed during the entire grid lifetime.
Also notice that disabling interactive column resizing will not prevent
the program from changing the column size.
@see EnableDragColSize()
*/
void DisableColResize(int col);
/**
Disable interactive resizing of the specified row.
This is the same as DisableColResize() but for rows.
@see EnableDragRowSize()
*/
void DisableRowResize(int row);
/**
Disables column moving by dragging with the mouse.
Equivalent to passing @false to EnableDragColMove().
*/
void DisableDragColMove();
/**
Disables column sizing by dragging with the mouse.
Equivalent to passing @false to EnableDragColSize().
*/
void DisableDragColSize();
/**
Disable mouse dragging of grid lines to resize rows and columns.
Equivalent to passing @false to EnableDragGridSize()
*/
void DisableDragGridSize();
/**
Disables row sizing by dragging with the mouse.
Equivalent to passing @false to EnableDragRowSize().
*/
void DisableDragRowSize();
/**
Enables or disables cell dragging with the mouse.
*/
void EnableDragCell(bool enable = true);
/**
Enables or disables column moving by dragging with the mouse.
*/
void EnableDragColMove(bool enable = true);
/**
Enables or disables column sizing by dragging with the mouse.
@see DisableColResize()
*/
void EnableDragColSize(bool enable = true);
/**
Enables or disables row and column resizing by dragging gridlines with
the mouse.
*/
void EnableDragGridSize(bool enable = true);
/**
Enables or disables row sizing by dragging with the mouse.
@see DisableRowResize()
*/
void EnableDragRowSize(bool enable = true);
/**
Returns the column ID of the specified column position.
*/
int GetColAt(int colPos) const;
/**
Returns the position of the specified column.
*/
int GetColPos(int colID) const;
/**
Sets the position of the specified column.
*/
void SetColPos(int colID, int newPos);
/**
Sets the positions of all columns at once.
This method takes an array containing the indices of the columns in
their display order, i.e. uses the same convention as
wxHeaderCtrl::SetColumnsOrder().
*/
void SetColumnsOrder(const wxArrayInt& order);
/**
Resets the position of the columns to the default.
*/
void ResetColPos();
//@}
/**
@name Cursor Movement
*/
//@{
/**
Returns the current grid cell column position.
*/
int GetGridCursorCol() const;
/**
Returns the current grid cell row position.
*/
int GetGridCursorRow() const;
/**
Make the given cell current and ensure it is visible.
This method is equivalent to calling MakeCellVisible() and
SetGridCursor() and so, as with the latter, a @c wxEVT_GRID_SELECT_CELL
event is generated by it and the selected cell doesn't change if the
event is vetoed.
*/
void GoToCell(int row, int col);
/**
Make the given cell current and ensure it is visible.
This method is equivalent to calling MakeCellVisible() and
SetGridCursor() and so, as with the latter, a @c wxEVT_GRID_SELECT_CELL
event is generated by it and the selected cell doesn't change if the
event is vetoed.
*/
void GoToCell(const wxGridCellCoords& coords);
/**
Moves the grid cursor down by one row.
If a block of cells was previously selected it will expand if the
argument is @true or be cleared if the argument is @false.
*/
bool MoveCursorDown(bool expandSelection);
/**
Moves the grid cursor down in the current column such that it skips to
the beginning or end of a block of non-empty cells.
If a block of cells was previously selected it will expand if the
argument is @true or be cleared if the argument is @false.
*/
bool MoveCursorDownBlock(bool expandSelection);
/**
Moves the grid cursor left by one column.
If a block of cells was previously selected it will expand if the
argument is @true or be cleared if the argument is @false.
*/
bool MoveCursorLeft(bool expandSelection);
/**
Moves the grid cursor left in the current row such that it skips to the
beginning or end of a block of non-empty cells.
If a block of cells was previously selected it will expand if the
argument is @true or be cleared if the argument is @false.
*/
bool MoveCursorLeftBlock(bool expandSelection);
/**
Moves the grid cursor right by one column.
If a block of cells was previously selected it will expand if the
argument is @true or be cleared if the argument is @false.
*/
bool MoveCursorRight(bool expandSelection);
/**
Moves the grid cursor right in the current row such that it skips to
the beginning or end of a block of non-empty cells.
If a block of cells was previously selected it will expand if the
argument is @true or be cleared if the argument is @false.
*/
bool MoveCursorRightBlock(bool expandSelection);
/**
Moves the grid cursor up by one row.
If a block of cells was previously selected it will expand if the
argument is @true or be cleared if the argument is @false.
*/
bool MoveCursorUp(bool expandSelection);
/**
Moves the grid cursor up in the current column such that it skips to
the beginning or end of a block of non-empty cells.
If a block of cells was previously selected it will expand if the
argument is @true or be cleared if the argument is @false.
*/
bool MoveCursorUpBlock(bool expandSelection);
/**
Moves the grid cursor down by some number of rows so that the previous
bottom visible row becomes the top visible row.
*/
bool MovePageDown();
/**
Moves the grid cursor up by some number of rows so that the previous
top visible row becomes the bottom visible row.
*/
bool MovePageUp();
/**
Set the grid cursor to the specified cell.
The grid cursor indicates the current cell and can be moved by the user
using the arrow keys or the mouse.
Calling this function generates a @c wxEVT_GRID_SELECT_CELL event and
if the event handler vetoes this event, the cursor is not moved.
This function doesn't make the target call visible, use GoToCell() to
do this.
*/
void SetGridCursor(int row, int col);
/**
Set the grid cursor to the specified cell.
The grid cursor indicates the current cell and can be moved by the user
using the arrow keys or the mouse.
Calling this function generates a @c wxEVT_GRID_SELECT_CELL event and
if the event handler vetoes this event, the cursor is not moved.
This function doesn't make the target call visible, use GoToCell() to
do this.
*/
void SetGridCursor(const wxGridCellCoords& coords);
//@}
/**
@name User Selection
*/
//@{
/**
Deselects all cells that are currently selected.
*/
void ClearSelection();
/**
Returns an array of individually selected cells.
Notice that this array does @em not contain all the selected cells in
general as it doesn't include the cells selected as part of column, row
or block selection. You must use this method, GetSelectedCols(),
GetSelectedRows() and GetSelectionBlockTopLeft() and
GetSelectionBlockBottomRight() methods to obtain the entire selection
in general.
Please notice this behaviour is by design and is needed in order to
support grids of arbitrary size (when an entire column is selected in
a grid with a million of columns, we don't want to create an array with
a million of entries in this function, instead it returns an empty
array and GetSelectedCols() returns an array containing one element).
*/
wxGridCellCoordsArray GetSelectedCells() const;
/**
Returns an array of selected columns.
Please notice that this method alone is not sufficient to find all the
selected columns as it contains only the columns which were
individually selected but not those being part of the block selection
or being selected in virtue of all of their cells being selected
individually, please see GetSelectedCells() for more details.
*/
wxArrayInt GetSelectedCols() const;
/**
Returns an array of selected rows.
Please notice that this method alone is not sufficient to find all the
selected rows as it contains only the rows which were individually
selected but not those being part of the block selection or being
selected in virtue of all of their cells being selected individually,
please see GetSelectedCells() for more details.
*/
wxArrayInt GetSelectedRows() const;
/**
Returns the colour used for drawing the selection background.
*/
wxColour GetSelectionBackground() const;
/**
Returns an array of the bottom right corners of blocks of selected
cells.
Please see GetSelectedCells() for more information about the selection
representation in wxGrid.
@see GetSelectionBlockTopLeft()
*/
wxGridCellCoordsArray GetSelectionBlockBottomRight() const;
/**
Returns an array of the top left corners of blocks of selected cells.
Please see GetSelectedCells() for more information about the selection
representation in wxGrid.
@see GetSelectionBlockBottomRight()
*/
wxGridCellCoordsArray GetSelectionBlockTopLeft() const;
/**
Returns the colour used for drawing the selection foreground.
*/
wxColour GetSelectionForeground() const;
/**
Returns the current selection mode.
@see SetSelectionMode().
*/
wxGridSelectionModes GetSelectionMode() const;
/**
Returns @true if the given cell is selected.
*/
bool IsInSelection(int row, int col) const;
/**
Returns @true if the given cell is selected.
*/
bool IsInSelection(const wxGridCellCoords& coords) const;
/**
Returns @true if there are currently any selected cells, rows, columns
or blocks.
*/
bool IsSelection() const;
/**
Selects all cells in the grid.
*/
void SelectAll();
/**
Selects a rectangular block of cells.
If @a addToSelected is @false then any existing selection will be
deselected; if @true the column will be added to the existing
selection.
*/
void SelectBlock(int topRow, int leftCol, int bottomRow, int rightCol,
bool addToSelected = false);
/**
Selects a rectangular block of cells.
If @a addToSelected is @false then any existing selection will be
deselected; if @true the column will be added to the existing
selection.
*/
void SelectBlock(const wxGridCellCoords& topLeft,
const wxGridCellCoords& bottomRight,
bool addToSelected = false);
/**
Selects the specified column.
If @a addToSelected is @false then any existing selection will be
deselected; if @true the column will be added to the existing
selection.
This method won't select anything if the current selection mode is
wxGridSelectRows.
*/
void SelectCol(int col, bool addToSelected = false);
/**
Selects the specified row.
If @a addToSelected is @false then any existing selection will be
deselected; if @true the row will be added to the existing selection.
This method won't select anything if the current selection mode is
wxGridSelectColumns.
*/
void SelectRow(int row, bool addToSelected = false);
/**
Set the colour to be used for drawing the selection background.
*/
void SetSelectionBackground(const wxColour& c);
/**
Set the colour to be used for drawing the selection foreground.
*/
void SetSelectionForeground(const wxColour& c);
/**
Set the selection behaviour of the grid.
The existing selection is converted to conform to the new mode if
possible and discarded otherwise (e.g. any individual selected cells
are deselected if the new mode allows only the selection of the entire
rows or columns).
*/
void SetSelectionMode(wxGridSelectionModes selmode);
//@}
/**
@name Scrolling
*/
//@{
/**
Returns the number of pixels per horizontal scroll increment.
The default is 15.
@see GetScrollLineY(), SetScrollLineX(), SetScrollLineY()
*/
int GetScrollLineX() const;
/**
Returns the number of pixels per vertical scroll increment.
The default is 15.
@see GetScrollLineX(), SetScrollLineX(), SetScrollLineY()
*/
int GetScrollLineY() const;
/**
Returns @true if a cell is either entirely or at least partially
visible in the grid window.
By default, the cell must be entirely visible for this function to
return @true but if @a wholeCellVisible is @false, the function returns
@true even if the cell is only partially visible.
*/
bool IsVisible(int row, int col, bool wholeCellVisible = true) const;
/**
Returns @true if a cell is either entirely or at least partially
visible in the grid window.
By default, the cell must be entirely visible for this function to
return @true but if @a wholeCellVisible is @false, the function returns
@true even if the cell is only partially visible.
*/
bool IsVisible(const wxGridCellCoords& coords,
bool wholeCellVisible = true) const;
/**
Brings the specified cell into the visible grid cell area with minimal
scrolling.
Does nothing if the cell is already visible.
*/
void MakeCellVisible(int row, int col);
/**
Brings the specified cell into the visible grid cell area with minimal
scrolling.
Does nothing if the cell is already visible.
*/
void MakeCellVisible(const wxGridCellCoords& coords);
/**
Sets the number of pixels per horizontal scroll increment.
The default is 15.
@see GetScrollLineX(), GetScrollLineY(), SetScrollLineY()
*/
void SetScrollLineX(int x);
/**
Sets the number of pixels per vertical scroll increment.
The default is 15.
@see GetScrollLineX(), GetScrollLineY(), SetScrollLineX()
*/
void SetScrollLineY(int y);
//@}
/**
@name Cell and Device Coordinate Translation
*/
//@{
/**
Convert grid cell coordinates to grid window pixel coordinates.
This function returns the rectangle that encloses the block of cells
limited by @a topLeft and @a bottomRight cell in device coords and
clipped to the client size of the grid window.
@see CellToRect()
*/
wxRect BlockToDeviceRect(const wxGridCellCoords& topLeft,
const wxGridCellCoords& bottomRight) const;
/**
Return the rectangle corresponding to the grid cell's size and position
in logical coordinates.
@see BlockToDeviceRect()
*/
wxRect CellToRect(int row, int col) const;
/**
Return the rectangle corresponding to the grid cell's size and position
in logical coordinates.
@see BlockToDeviceRect()
*/
wxRect CellToRect(const wxGridCellCoords& coords) const;
/**
Returns the column at the given pixel position.
@param x
The x position to evaluate.
@param clipToMinMax
If @true, rather than returning @c wxNOT_FOUND, it returns either
the first or last column depending on whether @a x is too far to
the left or right respectively.
@return
The column index or @c wxNOT_FOUND.
*/
int XToCol(int x, bool clipToMinMax = false) const;
/**
Returns the column whose right hand edge is close to the given logical
@a x position.
If no column edge is near to this position @c wxNOT_FOUND is returned.
*/
int XToEdgeOfCol(int x) const;
/**
Translates logical pixel coordinates to the grid cell coordinates.
Notice that this function expects logical coordinates on input so if
you use this function in a mouse event handler you need to translate
the mouse position, which is expressed in device coordinates, to
logical ones.
@see XToCol(), YToRow()
*/
wxGridCellCoords XYToCell(int x, int y) const;
/**
Translates logical pixel coordinates to the grid cell coordinates.
Notice that this function expects logical coordinates on input so if
you use this function in a mouse event handler you need to translate
the mouse position, which is expressed in device coordinates, to
logical ones.
@see XToCol(), YToRow()
*/
wxGridCellCoords XYToCell(const wxPoint& pos) const;
// XYToCell(int, int, wxGridCellCoords&) overload is intentionally
// undocumented, using it is ugly and non-const reference parameters are
// not used in wxWidgets API
/**
Returns the row whose bottom edge is close to the given logical @a y
position.
If no row edge is near to this position @c wxNOT_FOUND is returned.
*/
int YToEdgeOfRow(int y) const;
/**
Returns the grid row that corresponds to the logical @a y coordinate.
Returns @c wxNOT_FOUND if there is no row at the @a y position.
*/
int YToRow(int y, bool clipToMinMax = false) const;
//@}
/**
@name Miscellaneous Functions
*/
//@{
/**
Appends one or more new columns to the right of the grid.
The @a updateLabels argument is not used at present. If you are using a
derived grid table class you will need to override
wxGridTableBase::AppendCols(). See InsertCols() for further
information.
@return @true on success or @false if appending columns failed.
*/
bool AppendCols(int numCols = 1, bool updateLabels = true);
/**
Appends one or more new rows to the bottom of the grid.
The @a updateLabels argument is not used at present. If you are using a
derived grid table class you will need to override
wxGridTableBase::AppendRows(). See InsertRows() for further
information.
@return @true on success or @false if appending rows failed.
*/
bool AppendRows(int numRows = 1, bool updateLabels = true);
/**
Return @true if the horizontal grid lines stop at the last column
boundary or @false if they continue to the end of the window.
The default is to clip grid lines.
@see ClipHorzGridLines(), AreVertGridLinesClipped()
*/
bool AreHorzGridLinesClipped() const;
/**
Return @true if the vertical grid lines stop at the last row
boundary or @false if they continue to the end of the window.
The default is to clip grid lines.
@see ClipVertGridLines(), AreHorzGridLinesClipped()
*/
bool AreVertGridLinesClipped() const;
/**
Increments the grid's batch count.
When the count is greater than zero repainting of the grid is
suppressed. Each call to BeginBatch must be matched by a later call to
EndBatch(). Code that does a lot of grid modification can be enclosed
between BeginBatch() and EndBatch() calls to avoid screen flicker. The
final EndBatch() call will cause the grid to be repainted.
Notice that you should use wxGridUpdateLocker which ensures that there
is always a matching EndBatch() call for this BeginBatch() if possible
instead of calling this method directly.
*/
void BeginBatch();
/**
Clears all data in the underlying grid table and repaints the grid.
The table is not deleted by this function. If you are using a derived
table class then you need to override wxGridTableBase::Clear() for this
function to have any effect.
*/
void ClearGrid();
/**
Change whether the horizontal grid lines are clipped by the end of the
last column.
By default the grid lines are not drawn beyond the end of the last
column but after calling this function with @a clip set to @false they
will be drawn across the entire grid window.
@see AreHorzGridLinesClipped(), ClipVertGridLines()
*/
void ClipHorzGridLines(bool clip);
/**
Change whether the vertical grid lines are clipped by the end of the
last row.
By default the grid lines are not drawn beyond the end of the last
row but after calling this function with @a clip set to @false they
will be drawn across the entire grid window.
@see AreVertGridLinesClipped(), ClipHorzGridLines()
*/
void ClipVertGridLines(bool clip);
/**
Deletes one or more columns from a grid starting at the specified
position.
The @a updateLabels argument is not used at present. If you are using a
derived grid table class you will need to override
wxGridTableBase::DeleteCols(). See InsertCols() for further
information.
@return @true on success or @false if deleting columns failed.
*/
bool DeleteCols(int pos = 0, int numCols = 1, bool updateLabels = true);
/**
Deletes one or more rows from a grid starting at the specified
position.
The @a updateLabels argument is not used at present. If you are using a
derived grid table class you will need to override
wxGridTableBase::DeleteRows(). See InsertRows() for further
information.
@return @true on success or @false if appending rows failed.
*/
bool DeleteRows(int pos = 0, int numRows = 1, bool updateLabels = true);
/**
Decrements the grid's batch count.
When the count is greater than zero repainting of the grid is
suppressed. Each previous call to BeginBatch() must be matched by a
later call to EndBatch(). Code that does a lot of grid modification can
be enclosed between BeginBatch() and EndBatch() calls to avoid screen
flicker. The final EndBatch() will cause the grid to be repainted.
@see wxGridUpdateLocker
*/
void EndBatch();
/**
Overridden wxWindow method.
*/
virtual void Fit();
/**
Causes immediate repainting of the grid.
Use this instead of the usual wxWindow::Refresh().
*/
void ForceRefresh();
/**
Returns the number of times that BeginBatch() has been called without
(yet) matching calls to EndBatch(). While the grid's batch count is
greater than zero the display will not be updated.
*/
int GetBatchCount();
/**
Returns the total number of grid columns.
This is the same as the number of columns in the underlying grid table.
*/
int GetNumberCols() const;
/**
Returns the total number of grid rows.
This is the same as the number of rows in the underlying grid table.
*/
int GetNumberRows() const;
/**
Returns the attribute for the given cell creating one if necessary.
If the cell already has an attribute, it is returned. Otherwise a new
attribute is created, associated with the cell and returned. In any
case the caller must call DecRef() on the returned pointer.
This function may only be called if CanHaveAttributes() returns @true.
*/
wxGridCellAttr *GetOrCreateCellAttr(int row, int col) const;
/**
Returns a base pointer to the current table object.
The returned pointer is still owned by the grid.
*/
wxGridTableBase *GetTable() const;
/**
Inserts one or more new columns into a grid with the first new column
at the specified position.
Notice that inserting the columns in the grid requires grid table
cooperation: when this method is called, grid object begins by
requesting the underlying grid table to insert new columns. If this is
successful the table notifies the grid and the grid updates the
display. For a default grid (one where you have called CreateGrid())
this process is automatic. If you are using a custom grid table
(specified with SetTable()) then you must override
wxGridTableBase::InsertCols() in your derived table class.
@param pos
The position which the first newly inserted column will have.
@param numCols
The number of columns to insert.
@param updateLabels
Currently not used.
@return
@true if the columns were successfully inserted, @false if an error
occurred (most likely the table couldn't be updated).
*/
bool InsertCols(int pos = 0, int numCols = 1, bool updateLabels = true);
/**
Inserts one or more new rows into a grid with the first new row at the
specified position.
Notice that you must implement wxGridTableBase::InsertRows() if you use
a grid with a custom table, please see InsertCols() for more
information.
@param pos
The position which the first newly inserted row will have.
@param numRows
The number of rows to insert.
@param updateLabels
Currently not used.
@return
@true if the rows were successfully inserted, @false if an error
occurred (most likely the table couldn't be updated).
*/
bool InsertRows(int pos = 0, int numRows = 1, bool updateLabels = true);
/**
Sets the cell attributes for all cells in the specified column.
For more information about controlling grid cell attributes see the
wxGridCellAttr cell attribute class and the @ref overview_grid.
*/
void SetColAttr(int col, wxGridCellAttr* attr);
/**
Sets the extra margins used around the grid area.
A grid may occupy more space than needed for its data display and
this function allows to set how big this extra space is
*/
void SetMargins(int extraWidth, int extraHeight);
/**
Sets the cell attributes for all cells in the specified row.
The grid takes ownership of the attribute pointer.
See the wxGridCellAttr class for more information about controlling
cell attributes.
*/
void SetRowAttr(int row, wxGridCellAttr* attr);
//@}
/**
@name Sorting support.
wxGrid doesn't provide any support for sorting the data but it does
generate events allowing the user code to sort it and supports
displaying the sort indicator in the column used for sorting.
To use wxGrid sorting support you need to handle wxEVT_GRID_COL_SORT
event (and not veto it) and resort the data displayed in the grid. The
grid will automatically update the sorting indicator on the column
which was clicked.
You can also call the functions in this section directly to update the
sorting indicator. Once again, they don't do anything with the grid
data, it remains your responsibility to actually sort it appropriately.
*/
//@{
/**
Return the column in which the sorting indicator is currently
displayed.
Returns @c wxNOT_FOUND if sorting indicator is not currently displayed
at all.
@see SetSortingColumn()
*/
int GetSortingColumn() const;
/**
Return @true if this column is currently used for sorting.
@see GetSortingColumn()
*/
bool IsSortingBy(int col) const;
/**
Return @true if the current sorting order is ascending or @false if it
is descending.
It only makes sense to call this function if GetSortingColumn() returns
a valid column index and not @c wxNOT_FOUND.
@see SetSortingColumn()
*/
bool IsSortOrderAscending() const;
/**
Set the column to display the sorting indicator in and its direction.
@param col
The column to display the sorting indicator in or @c wxNOT_FOUND to
remove any currently displayed sorting indicator.
@param ascending
If @true, display the ascending sort indicator, otherwise display
the descending sort indicator.
@see GetSortingColumn(), IsSortOrderAscending()
*/
void SetSortingColumn(int col, bool ascending = true);
/**
Remove any currently shown sorting indicator.
This is equivalent to calling SetSortingColumn() with @c wxNOT_FOUND
first argument.
*/
void UnsetSortingColumn();
//@}
/**
@name Accessors for component windows.
Return the various child windows of wxGrid.
wxGrid is an empty parent window for 4 children representing the column
labels window (top), the row labels window (left), the corner window
(top left) and the main grid window. It may be necessary to use these
individual windows and not the wxGrid window itself if you need to
handle events for them (this can be done using wxEvtHandler::Connect()
or wxWindow::PushEventHandler()) or do something else requiring the use
of the correct window pointer. Notice that you should not, however,
change these windows (e.g. reposition them or draw over them) because
they are managed by wxGrid itself.
*/
//@{
/**
Return the main grid window containing the grid cells.
This window is always shown.
*/
wxWindow *GetGridWindow() const;
/**
Return the row labels window.
This window is not shown if the row labels were hidden using
HideRowLabels().
*/
wxWindow *GetGridRowLabelWindow() const;
/**
Return the column labels window.
This window is not shown if the columns labels were hidden using
HideColLabels().
Depending on whether UseNativeColHeader() was called or not this can be
either a wxHeaderCtrl or a plain wxWindow. This function returns a valid
window pointer in either case but in the former case you can also use
GetGridColHeader() to access it if you need wxHeaderCtrl-specific
functionality.
*/
wxWindow *GetGridColLabelWindow() const;
/**
Return the window in the top left grid corner.
This window is shown only of both columns and row labels are shown and
normally doesn't contain anything. Clicking on it is handled by wxGrid
however and can be used to select the entire grid.
*/
wxWindow *GetGridCornerLabelWindow() const;
/**
Return the header control used for column labels display.
This function can only be called if UseNativeColHeader() had been
called.
*/
wxHeaderCtrl *GetGridColHeader() const;
//@}
protected:
/**
Returns @true if this grid has support for cell attributes.
The grid supports attributes if it has the associated table which, in
turn, has attributes support, i.e. wxGridTableBase::CanHaveAttributes()
returns @true.
*/
bool CanHaveAttributes() const;
/**
Get the minimal width of the given column/row.
The value returned by this function may be different than that returned
by GetColMinimalAcceptableWidth() if SetColMinimalWidth() had been
called for this column.
*/
int GetColMinimalWidth(int col) const;
/**
Returns the coordinate of the right border specified column.
*/
int GetColRight(int col) const;
/**
Returns the coordinate of the left border specified column.
*/
int GetColLeft(int col) const;
/**
Returns the minimal size for the given column.
The value returned by this function may be different than that returned
by GetRowMinimalAcceptableHeight() if SetRowMinimalHeight() had been
called for this row.
*/
int GetRowMinimalHeight(int col) const;
};
/**
@class wxGridUpdateLocker
This small class can be used to prevent wxGrid from redrawing during its
lifetime by calling wxGrid::BeginBatch() in its constructor and
wxGrid::EndBatch() in its destructor. It is typically used in a function
performing several operations with a grid which would otherwise result in
flicker. For example:
@code
void MyFrame::Foo()
{
m_grid = new wxGrid(this, ...);
wxGridUpdateLocker noUpdates(m_grid);
m_grid-AppendColumn();
// ... many other operations with m_grid ...
m_grid-AppendRow();
// destructor called, grid refreshed
}
@endcode
Using this class is easier and safer than calling wxGrid::BeginBatch() and
wxGrid::EndBatch() because you don't risk missing the call the latter (due
to an exception for example).
@library{wxadv}
@category{grid}
*/
class wxGridUpdateLocker
{
public:
/**
Creates an object preventing the updates of the specified @a grid. The
parameter could be @NULL in which case nothing is done. If @a grid is
non-@NULL then the grid must exist for longer than this
wxGridUpdateLocker object itself.
The default constructor could be followed by a call to Create() to set
the grid object later.
*/
wxGridUpdateLocker(wxGrid* grid = NULL);
/**
Destructor reenables updates for the grid this object is associated
with.
*/
~wxGridUpdateLocker();
/**
This method can be called if the object had been constructed using the
default constructor. It must not be called more than once.
*/
void Create(wxGrid* grid);
};
/**
@class wxGridEvent
This event class contains information about various grid events.
Notice that all grid event table macros are available in two versions:
@c EVT_GRID_XXX and @c EVT_GRID_CMD_XXX. The only difference between the
two is that the former doesn't allow to specify the grid window identifier
and so takes a single parameter, the event handler, but is not suitable if
there is more than one grid control in the window where the event table is
used (as it would catch the events from all the grids). The version with @c
CMD takes the id as first argument and the event handler as the second one
and so can be used with multiple grids as well. Otherwise there are no
difference between the two and only the versions without the id are
documented below for brevity.
@beginEventTable{wxGridEvent}
@event{EVT_GRID_CELL_CHANGING(func)}
The user is about to change the data in a cell. The new cell value as
string is available from GetString() event object method. This event
can be vetoed if the change is not allowed.
Processes a @c wxEVT_GRID_CELL_CHANGING event type.
@event{EVT_GRID_CELL_CHANGED(func)}
The user changed the data in a cell. The old cell value as string is
available from GetString() event object method. Notice that vetoing
this event still works for backwards compatibility reasons but any new
code should only veto EVT_GRID_CELL_CHANGING event and not this one.
Processes a @c wxEVT_GRID_CELL_CHANGED event type.
@event{EVT_GRID_CELL_LEFT_CLICK(func)}
The user clicked a cell with the left mouse button. Processes a
@c wxEVT_GRID_CELL_LEFT_CLICK event type.
@event{EVT_GRID_CELL_LEFT_DCLICK(func)}
The user double-clicked a cell with the left mouse button. Processes a
@c wxEVT_GRID_CELL_LEFT_DCLICK event type.
@event{EVT_GRID_CELL_RIGHT_CLICK(func)}
The user clicked a cell with the right mouse button. Processes a
@c wxEVT_GRID_CELL_RIGHT_CLICK event type.
@event{EVT_GRID_CELL_RIGHT_DCLICK(func)}
The user double-clicked a cell with the right mouse button. Processes a
@c wxEVT_GRID_CELL_RIGHT_DCLICK event type.
@event{EVT_GRID_EDITOR_HIDDEN(func)}
The editor for a cell was hidden. Processes a
@c wxEVT_GRID_EDITOR_HIDDEN event type.
@event{EVT_GRID_EDITOR_SHOWN(func)}
The editor for a cell was shown. Processes a
@c wxEVT_GRID_EDITOR_SHOWN event type.
@event{EVT_GRID_LABEL_LEFT_CLICK(func)}
The user clicked a label with the left mouse button. Processes a
@c wxEVT_GRID_LABEL_LEFT_CLICK event type.
@event{EVT_GRID_LABEL_LEFT_DCLICK(func)}
The user double-clicked a label with the left mouse button. Processes a
@c wxEVT_GRID_LABEL_LEFT_DCLICK event type.
@event{EVT_GRID_LABEL_RIGHT_CLICK(func)}
The user clicked a label with the right mouse button. Processes a
@c wxEVT_GRID_LABEL_RIGHT_CLICK event type.
@event{EVT_GRID_LABEL_RIGHT_DCLICK(func)}
The user double-clicked a label with the right mouse button. Processes
a @c wxEVT_GRID_LABEL_RIGHT_DCLICK event type.
@event{EVT_GRID_SELECT_CELL(func)}
The given cell was made current, either by user or by the program via a
call to SetGridCursor() or GoToCell(). Processes a
@c wxEVT_GRID_SELECT_CELL event type.
@event{EVT_GRID_COL_MOVE(func)}
The user tries to change the order of the columns in the grid by
dragging the column specified by GetCol(). This event can be vetoed to
either prevent the user from reordering the column change completely
(but notice that if you don't want to allow it at all, you simply
shouldn't call wxGrid::EnableDragColMove() in the first place), vetoed
but handled in some way in the handler, e.g. by really moving the
column to the new position at the associated table level, or allowed to
proceed in which case wxGrid::SetColPos() is used to reorder the
columns display order without affecting the use of the column indices
otherwise.
This event macro corresponds to @c wxEVT_GRID_COL_MOVE event type.
@event{EVT_GRID_COL_SORT(func)}
This event is generated when a column is clicked by the user and its
name is explained by the fact that the custom reaction to a click on a
column is to sort the grid contents by this column. However the grid
itself has no special support for sorting and it's up to the handler of
this event to update the associated table. But if the event is handled
(and not vetoed) the grid supposes that the table was indeed resorted
and updates the column to indicate the new sort order and refreshes
itself.
This event macro corresponds to @c wxEVT_GRID_COL_SORT event type.
@endEventTable
@library{wxadv}
@category{grid,events}
*/
class wxGridEvent : public wxNotifyEvent
{
public:
/**
Default constructor.
*/
wxGridEvent();
/**
Constructor for initializing all event attributes.
*/
wxGridEvent(int id, wxEventType type, wxObject* obj,
int row = -1, int col = -1, int x = -1, int y = -1,
bool sel = true, const wxKeyboardState& kbd = wxKeyboardState());
/**
Returns @true if the Alt key was down at the time of the event.
*/
bool AltDown() const;
/**
Returns @true if the Control key was down at the time of the event.
*/
bool ControlDown() const;
/**
Column at which the event occurred.
*/
virtual int GetCol();
/**
Position in pixels at which the event occurred.
*/
wxPoint GetPosition();
/**
Row at which the event occurred.
*/
virtual int GetRow();
/**
Returns @true if the Meta key was down at the time of the event.
*/
bool MetaDown() const;
/**
Returns @true if the user is selecting grid cells, or @false if
deselecting.
*/
bool Selecting();
/**
Returns @true if the Shift key was down at the time of the event.
*/
bool ShiftDown() const;
};
/**
@class wxGridSizeEvent
This event class contains information about a row/column resize event.
@beginEventTable{wxGridSizeEvent}
@event{EVT_GRID_CMD_COL_SIZE(id, func)}
The user resized a column, corresponds to @c wxEVT_GRID_COL_SIZE event
type.
@event{EVT_GRID_CMD_ROW_SIZE(id, func)}
The user resized a row, corresponds to @c wxEVT_GRID_ROW_SIZE event
type.
@event{EVT_GRID_COL_SIZE(func)}
Same as EVT_GRID_CMD_COL_SIZE() but uses `wxID_ANY` id.
@event{EVT_GRID_ROW_SIZE(func)}
Same as EVT_GRID_CMD_ROW_SIZE() but uses `wxID_ANY` id.
@endEventTable
@library{wxadv}
@category{grid,events}
*/
class wxGridSizeEvent : public wxNotifyEvent
{
public:
/**
Default constructor.
*/
wxGridSizeEvent();
/**
Constructor for initializing all event attributes.
*/
wxGridSizeEvent(int id, wxEventType type, wxObject* obj,
int rowOrCol = -1, int x = -1, int y = -1,
const wxKeyboardState& kbd = wxKeyboardState());
/**
Returns @true if the Alt key was down at the time of the event.
*/
bool AltDown() const;
/**
Returns @true if the Control key was down at the time of the event.
*/
bool ControlDown() const;
/**
Position in pixels at which the event occurred.
*/
wxPoint GetPosition();
/**
Row or column at that was resized.
*/
int GetRowOrCol();
/**
Returns @true if the Meta key was down at the time of the event.
*/
bool MetaDown() const;
/**
Returns @true if the Shift key was down at the time of the event.
*/
bool ShiftDown() const;
};
/**
@class wxGridRangeSelectEvent
@beginEventTable{wxGridRangeSelectEvent}
@event{EVT_GRID_RANGE_SELECT(func)}
The user selected a group of contiguous cells. Processes a
@c wxEVT_GRID_RANGE_SELECT event type.
@event{EVT_GRID_CMD_RANGE_SELECT(id, func)}
The user selected a group of contiguous cells; variant taking a window
identifier. Processes a @c wxEVT_GRID_RANGE_SELECT event type.
@endEventTable
@library{wxadv}
@category{grid,events}
*/
class wxGridRangeSelectEvent : public wxNotifyEvent
{
public:
/**
Default constructor.
*/
wxGridRangeSelectEvent();
/**
Constructor for initializing all event attributes.
*/
wxGridRangeSelectEvent(int id, wxEventType type,
wxObject* obj,
const wxGridCellCoords& topLeft,
const wxGridCellCoords& bottomRight,
bool sel = true, const wxKeyboardState& kbd = wxKeyboardState());
/**
Returns @true if the Alt key was down at the time of the event.
*/
bool AltDown() const;
/**
Returns @true if the Control key was down at the time of the event.
*/
bool ControlDown() const;
/**
Top left corner of the rectangular area that was (de)selected.
*/
wxGridCellCoords GetBottomRightCoords();
/**
Bottom row of the rectangular area that was (de)selected.
*/
int GetBottomRow();
/**
Left column of the rectangular area that was (de)selected.
*/
int GetLeftCol();
/**
Right column of the rectangular area that was (de)selected.
*/
int GetRightCol();
/**
Top left corner of the rectangular area that was (de)selected.
*/
wxGridCellCoords GetTopLeftCoords();
/**
Top row of the rectangular area that was (de)selected.
*/
int GetTopRow();
/**
Returns @true if the Meta key was down at the time of the event.
*/
bool MetaDown() const;
/**
Returns @true if the area was selected, @false otherwise.
*/
bool Selecting();
/**
Returns @true if the Shift key was down at the time of the event.
*/
bool ShiftDown() const;
};
/**
@class wxGridEditorCreatedEvent
@beginEventTable{wxGridEditorCreatedEvent}
@event{EVT_GRID_EDITOR_CREATED(func)}
The editor for a cell was created. Processes a
@c wxEVT_GRID_EDITOR_CREATED event type.
@event{EVT_GRID_CMD_EDITOR_CREATED(id, func)}
The editor for a cell was created; variant taking a window identifier.
Processes a @c wxEVT_GRID_EDITOR_CREATED event type.
@endEventTable
@library{wxadv}
@category{grid,events}
*/
class wxGridEditorCreatedEvent : public wxCommandEvent
{
public:
/**
Default constructor.
*/
wxGridEditorCreatedEvent();
/**
Constructor for initializing all event attributes.
*/
wxGridEditorCreatedEvent(int id, wxEventType type, wxObject* obj,
int row, int col, wxControl* ctrl);
/**
Returns the column at which the event occurred.
*/
int GetCol();
/**
Returns the edit control.
*/
wxControl* GetControl();
/**
Returns the row at which the event occurred.
*/
int GetRow();
/**
Sets the column at which the event occurred.
*/
void SetCol(int col);
/**
Sets the edit control.
*/
void SetControl(wxControl* ctrl);
/**
Sets the row at which the event occurred.
*/
void SetRow(int row);
};
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