SVN:(VZ)[71577] Add wxGrid::Render() for drawing the grid to any wxDC.
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nor...@wxsite.net
May 27, 2012, 9:00:19 AM5/27/12
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- Revision
- 71577
- Author
- VZ
- Date
- 2012-05-27 06:00:19 -0700 (Sun, 27 May 2012)
Log Message
Add wxGrid::Render() for drawing the grid to any wxDC.
In particular, this allows to print the grid contents easily.
Closes 14294.
Modified Paths
Diff
Modified: wxWidgets/trunk/docs/changes.txt (71576 => 71577)
--- wxWidgets/trunk/docs/changes.txt 2012-05-27 13:00:13 UTC (rev 71576)
+++ wxWidgets/trunk/docs/changes.txt 2012-05-27 13:00:19 UTC (rev 71577)
@@ -526,6 +526,7 @@
All (GUI):
+- Add wxGrid::Render() for printing wxGrid (John Roberts).
- Added strike-through support to wxFont (Igor Korot).
- Add support for horizontal mouse wheel events to MSW and GTK (Lauri Nurmi).
- Fix infinite loop in wxHtmlEasyPrinting when trying to page break images
Modified: wxWidgets/trunk/include/wx/generic/grid.h (71576 => 71577)
--- wxWidgets/trunk/include/wx/generic/grid.h 2012-05-27 13:00:13 UTC (rev 71576)
+++ wxWidgets/trunk/include/wx/generic/grid.h 2012-05-27 13:00:19 UTC (rev 71577)
@@ -65,6 +65,20 @@
wxGRID_ROW
};
+// Flags used with wxGrid::Render() to select parts of the grid to draw.
+enum wxGridRenderStyle
+{
+ wxGRID_DRAW_ROWS_HEADER = 0x001,
+ wxGRID_DRAW_COLS_HEADER = 0x002,
+ wxGRID_DRAW_CELL_LINES = 0x004,
+ wxGRID_DRAW_BOX_RECT = 0x008,
+ wxGRID_DRAW_SELECTION = 0x010,
+ wxGRID_DRAW_DEFAULT = wxGRID_DRAW_ROWS_HEADER |
+ wxGRID_DRAW_COLS_HEADER |
+ wxGRID_DRAW_CELL_LINES |
+ wxGRID_DRAW_BOX_RECT
+};
+
// ----------------------------------------------------------------------------
// forward declarations
// ----------------------------------------------------------------------------
@@ -1030,6 +1044,14 @@
int verticalAlignment = wxALIGN_TOP,
int textOrientation = wxHORIZONTAL ) const;
+ // ------ grid render function for printing
+ //
+ void Render( wxDC& dc,
+ const wxPoint& pos = wxDefaultPosition,
+ const wxSize& size = wxDefaultSize,
+ const wxGridCellCoords& topLeft = wxGridCellCoords(-1, -1),
+ const wxGridCellCoords& bottomRight = wxGridCellCoords(-1, -1),
+ int style = wxGRID_DRAW_DEFAULT );
// Split a string containing newline characters into an array of
// strings and return the number of lines
@@ -2253,7 +2275,11 @@
bool DoCanResizeLine(int line, const wxGridFixedIndicesSet *setFixed) const;
+ // Helper of Render(): set the scale to draw the cells at the right size.
+ void SetRenderScale( wxDC& dc, const wxPoint& pos, const wxSize& size,
+ int gridWidth, int gridHeight );
+
// these sets contain the indices of fixed, i.e. non-resizable
// interactively, grid rows or columns and are NULL if there are no fixed
// elements (which is the default)
Modified: wxWidgets/trunk/interface/wx/grid.h (71576 => 71577)
--- wxWidgets/trunk/interface/wx/grid.h 2012-05-27 13:00:13 UTC (rev 71576)
+++ wxWidgets/trunk/interface/wx/grid.h 2012-05-27 13:00:19 UTC (rev 71577)
@@ -1851,6 +1851,50 @@
};
/**
+ Rendering styles supported by wxGrid::Render() method.
+
+ @since 2.9.4
+ */
+ enum wxGridRenderStyle
+ {
+ /// Draw grid row header labels.
+ wxGRID_DRAW_ROWS_HEADER = 0x001,
+
+ /// Draw grid column header labels.
+ wxGRID_DRAW_COLS_HEADER = 0x002,
+
+ /// Draw grid cell border lines.
+ wxGRID_DRAW_CELL_LINES = 0x004,
+
+ /**
+ Draw a bounding rectangle around the rendered cell area.
+
+ Useful where row or column headers are not drawn or where there is
+ multi row or column cell clipping and therefore no cell border at
+ the rendered outer boundary.
+ */
+ wxGRID_DRAW_BOX_RECT = 0x008,
+
+ /**
+ Draw the grid cell selection highlight if a selection is present.
+
+ At present the highlight colour drawn depends on whether the grid
+ window loses focus before drawing begins.
+ */
+ wxGRID_DRAW_SELECTION = 0x010,
+
+ /**
+ The default render style.
+
+ Includes all except wxGRID_DRAW_SELECTION.
+ */
+ wxGRID_DRAW_DEFAULT = wxGRID_DRAW_ROWS_HEADER |
+ wxGRID_DRAW_COLS_HEADER |
+ wxGRID_DRAW_CELL_LINES |
+ wxGRID_DRAW_BOX_RECT
+ };
+
+ /**
@name Constructors and Initialization
*/
//@{
@@ -4003,6 +4047,39 @@
void RefreshAttr(int row, int col);
/**
+ Draws part or all of a wxGrid on a wxDC for printing or display.
+
+ Pagination can be accomplished by using sequential Render() calls
+ with appropriate values in wxGridCellCoords topLeft and bottomRight.
+
+ @param dc
+ The wxDC to be drawn on.
+ @param pos
+ The position on the wxDC where rendering should begin. If not
+ specified drawing will begin at the wxDC MaxX() and MaxY().
+ @param size
+ The size of the area on the wxDC that the rendered wxGrid should
+ occupy. If not specified the drawing will be scaled to fit the
+ available dc width or height. The wxGrid's aspect ratio is
+ maintained whether or not size is specified.
+ @param topLeft
+ The top left cell of the block to be drawn. Defaults to ( 0, 0 ).
+ @param bottomRight
+ The bottom right cell of the block to be drawn. Defaults to row and
+ column counts.
+ @param style
+ A combination of values from wxGridRenderStyle.
+
+ @since 2.9.4
+ */
+ void Render( wxDC& dc,
+ const wxPoint& pos = wxDefaultPosition,
+ const wxSize& size = wxDefaultSize,
+ const wxGridCellCoords& topLeft = wxGridCellCoords( -1, -1 ),
+ const wxGridCellCoords& bottomRight = wxGridCellCoords( -1, -1 ),
+ int style = wxGRID_DRAW_DEFAULT );
+
+ /**
Sets the cell attributes for all cells in the specified column.
For more information about controlling grid cell attributes see the
Modified: wxWidgets/trunk/samples/grid/griddemo.cpp (71576 => 71577)
--- wxWidgets/trunk/samples/grid/griddemo.cpp 2012-05-27 13:00:13 UTC (rev 71576)
+++ wxWidgets/trunk/samples/grid/griddemo.cpp 2012-05-27 13:00:19 UTC (rev 71577)
@@ -212,6 +212,9 @@
EVT_MENU( ID_SET_HIGHLIGHT_WIDTH, GridFrame::OnSetHighlightWidth)
EVT_MENU( ID_SET_RO_HIGHLIGHT_WIDTH, GridFrame::OnSetROHighlightWidth)
+ EVT_MENU( wxID_PRINT, GridFrame::OnGridRender )
+ EVT_MENU( ID_RENDER_COORDS, GridFrame::OnGridRender )
+
EVT_GRID_LABEL_LEFT_CLICK( GridFrame::OnLabelLeftClick )
EVT_GRID_CELL_LEFT_CLICK( GridFrame::OnCellLeftClick )
EVT_GRID_ROW_SIZE( GridFrame::OnRowSize )
@@ -239,6 +242,38 @@
fileMenu->Append( ID_BUGS_TABLE, wxT("&Bugs table test\tCtrl-B"));
fileMenu->Append( ID_TABULAR_TABLE, wxT("&Tabular table test\tCtrl-T"));
fileMenu->AppendSeparator();
+
+ wxMenu* setupMenu = new wxMenu;
+ wxMenuItem* item;
+ item = setupMenu->AppendCheckItem( ID_RENDER_ROW_LABEL,
+ "Render row labels" );
+ item->Check();
+ item = setupMenu->AppendCheckItem( ID_RENDER_COL_LABEL,
+ "Render column labels" );
+ item->Check();
+ item = setupMenu->AppendCheckItem( ID_RENDER_GRID_LINES,
+ "Render grid cell lines" );
+ item->Check();
+ item = setupMenu->AppendCheckItem( ID_RENDER_GRID_BORDER,
+ "Render border" );
+ item->Check();
+ item = setupMenu->AppendCheckItem( ID_RENDER_SELECT_HLIGHT,
+ "Render selection highlight" );
+ setupMenu->AppendSeparator();
+ setupMenu->AppendCheckItem( ID_RENDER_LOMETRIC,
+ "Use LOMETRIC mapping mode" );
+ setupMenu->AppendCheckItem( ID_RENDER_DEFAULT_SIZE,
+ "Use wxDefaultSize" );
+ setupMenu->AppendCheckItem( ID_RENDER_MARGIN,
+ "Logical 50 unit margin" );
+ setupMenu->AppendCheckItem( ID_RENDER_ZOOM,
+ "Zoom 125%" );
+
+ fileMenu->AppendSubMenu( setupMenu, "Render setup" );
+ fileMenu->Append( wxID_PRINT, "Render" );
+ fileMenu->Append( ID_RENDER_COORDS, "Render G5:P30" );
+
+ fileMenu->AppendSeparator();
fileMenu->Append( wxID_EXIT, wxT("E&xit\tAlt-X") );
wxMenu *viewMenu = new wxMenu;
@@ -2068,3 +2103,158 @@
{
new TabularGridFrame;
}
+
+// Example using wxGrid::Render
+// Displays a preset selection or, if it exists, a selection block
+// Draws the selection to a wxBitmap and displays the bitmap
+void GridFrame::OnGridRender( wxCommandEvent& event )
+{
+ int styleRender = 0, i;
+ bool useLometric = false, defSize = false;
+ double zoom = 1;
+ wxSize sizeMargin( 0, 0 );
+ wxPoint pointOrigin( 0, 0 );
+
+ wxMenu* menu = GetMenuBar()->GetMenu( 0 );
+ wxMenuItem* menuItem = menu->FindItem( ID_RENDER_ROW_LABEL );
+ menu = menuItem->GetMenu();
+
+ if ( menu->FindItem( ID_RENDER_ROW_LABEL )->IsChecked() )
+ styleRender |= wxGRID_DRAW_ROWS_HEADER;
+ if ( menu->FindItem( ID_RENDER_COL_LABEL )->IsChecked() )
+ styleRender |= wxGRID_DRAW_COLS_HEADER;
+ if ( menu->FindItem( ID_RENDER_GRID_LINES )->IsChecked() )
+ styleRender |= wxGRID_DRAW_CELL_LINES;
+ if ( menu->FindItem( ID_RENDER_GRID_BORDER )->IsChecked() )
+ styleRender |= wxGRID_DRAW_BOX_RECT;
+ if ( menu->FindItem( ID_RENDER_SELECT_HLIGHT )->IsChecked() )
+ styleRender |= wxGRID_DRAW_SELECTION;
+ if ( menu->FindItem( ID_RENDER_LOMETRIC )->IsChecked() )
+ useLometric = true;
+ if ( menu->FindItem( ID_RENDER_MARGIN )->IsChecked() )
+ {
+ pointOrigin.x += 50;
+ pointOrigin.y += 50;
+ sizeMargin.IncBy( 50 );
+ }
+ if ( menu->FindItem( ID_RENDER_ZOOM )->IsChecked() )
+ zoom = 1.25;
+ if ( menu->FindItem( ID_RENDER_DEFAULT_SIZE )->IsChecked() )
+ defSize = true;
+
+ // init render area coords with a default row and col selection
+ wxGridCellCoords topLeft( 0, 0 ), bottomRight( 8, 6 );
+ // check whether we are printing a block selection
+ // other selection types not catered for here
+ if ( event.GetId() == ID_RENDER_COORDS )
+ {
+ topLeft.SetCol( 6 );
+ topLeft.SetRow( 4 );
+ bottomRight.SetCol( 15 );
+ bottomRight.SetRow( 29 );
+ }
+ else if ( grid->IsSelection() && grid->GetSelectionBlockTopLeft().Count() )
+ {
+ wxGridCellCoordsArray cells = grid->GetSelectionBlockTopLeft();
+ if ( grid->GetSelectionBlockBottomRight().Count() )
+ {
+ cells.Add( grid->GetSelectionBlockBottomRight()[ 0 ] );
+ topLeft.Set( cells[ 0 ].GetRow(),
+ cells[ 0 ].GetCol() );
+ bottomRight.Set( cells[ 1 ].GetRow(),
+ cells[ 1 ].GetCol() );
+ }
+ }
+
+ // sum col widths
+ wxSize sizeRender( 0, 0 );
+ wxGridSizesInfo sizeinfo = grid->GetColSizes();
@@ Diff output truncated at 10240 characters. @@
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