X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/600e986ad79fa72b8eb02ac4c30f8db087e0a123..5b88a837ba75928cd3835a6b97ae2bf5ad983a6e:/interface/wx/grid.h diff --git a/interface/wx/grid.h b/interface/wx/grid.h index d5bae11d30..5fbea265ac 100644 --- a/interface/wx/grid.h +++ b/interface/wx/grid.h @@ -218,14 +218,21 @@ public: 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 fills - @a newval with the representation of the new value in the string form, - if necessary saves it using its real type internally, and returns @true. + 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(const wxString& oldval, wxString* newval) = 0; + virtual bool EndEdit(int row, int col, const wxGrid* grid, + const wxString& oldval, wxString* newval) = 0; /** Effectively save the changes in the grid. @@ -321,7 +328,7 @@ public: an empty string otherwise. */ static void UseStringValues(const wxString& valueTrue = "1", - const wxString& valueFalse = wxEmptyString) const; + const wxString& valueFalse = wxEmptyString); }; /** @@ -1028,6 +1035,68 @@ public: 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; +}; /** @@ -1397,13 +1466,13 @@ public: /** Call this in order to make the column labels use a native look by using - wxRenderer::DrawHeaderButton() internally. + 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 UseNativeHeader() + @see UseNativeColHeader() */ void SetUseNativeColLabels(bool native = true); @@ -1425,8 +1494,8 @@ public: 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 + 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). */ @@ -1665,7 +1734,7 @@ public: See wxGridTableBase::CanGetValueAs() and the @ref overview_grid for more information. */ - const wxString& GetCellValue(const wxGridCellCoords& coords) const; + wxString GetCellValue(const wxGridCellCoords& coords) const; /** Returns a pointer to the current default grid cell editor. @@ -1968,6 +2037,8 @@ public: /** @name Column and Row Sizes + + @see @ref overview_grid_resizing */ //@{ @@ -2213,11 +2284,57 @@ public: */ 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(). */ //@{ @@ -2234,13 +2351,15 @@ public: bool CanDragColMove() const; /** - Returns @true if columns can be resized by dragging with the mouse. + Returns @true if the given column can be resized by dragging with the + mouse. - Columns can be resized by dragging the edges of their labels. If grid - line dragging is enabled they can also be resized by dragging the right - edge of the column in the grid cell area (see EnableDragGridSize()). + 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() const; + bool CanDragColSize(int col) const; /** Return @true if the dragging of grid lines to resize rows and columns @@ -2249,13 +2368,42 @@ public: bool CanDragGridSize() const; /** - Returns @true if rows can be resized by dragging with the mouse. + Returns @true if the given row can be resized by dragging with the + mouse. - Rows can be resized by dragging the edges of their labels. If grid line - dragging is enabled they can also be resized by dragging the lower edge - of the row in the grid cell area (see EnableDragGridSize()). + This is the same as CanDragColSize() but for rows. */ - bool CanDragRowSize() const; + 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. @@ -2297,6 +2445,8 @@ public: /** Enables or disables column sizing by dragging with the mouse. + + @see DisableColResize() */ void EnableDragColSize(bool enable = true); @@ -2308,6 +2458,8 @@ public: /** Enables or disables row sizing by dragging with the mouse. + + @see DisableRowResize() */ void EnableDragRowSize(bool enable = true); @@ -2770,7 +2922,7 @@ public: @see BlockToDeviceRect() */ - const wxRect CellToRect(const wxGridCellCoords& coords) const; + wxRect CellToRect(const wxGridCellCoords& coords) const; /** Returns the column at the given pixel position. @@ -3098,44 +3250,6 @@ public: //@} -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; - /** @name Sorting support. @@ -3207,6 +3321,7 @@ protected: void UnsetSortingColumn(); //@} + /** @name Accessors for component windows. @@ -3271,6 +3386,44 @@ protected: 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; }; @@ -3486,18 +3639,16 @@ public: This event class contains information about a row/column resize event. @beginEventTable{wxGridSizeEvent} - @event{EVT_GRID_COL_SIZE(func)} - The user resized a column by dragging it. Processes a - @c wxEVT_GRID_COL_SIZE event type. - @event{EVT_GRID_ROW_SIZE(func)} - The user resized a row by dragging it. Processes a - @c wxEVT_GRID_ROW_SIZE event type. @event{EVT_GRID_CMD_COL_SIZE(id, func)} - The user resized a column by dragging it; variant taking a window - identifier. Processes a @c wxEVT_GRID_COL_SIZE event type. + 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 by dragging it; variant taking a window - identifier. Processes a @c wxEVT_GRID_ROW_SIZE event type. + 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}