Amebis/wxWidgets
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add wxGrid::Render() for drawing the grid to any wxDC.

Browse Source 
In particular, this allows to print the grid contents easily.

Closes #14294.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@71577 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2012-05-27 13:00:19 +00:00
parent b55d57aa24
commit 779e28da63
6 changed files with 571 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

190
samples/grid/griddemo.cpp
View File

@@ -212,6 +212,9 @@ BEGIN_EVENT_TABLE( GridFrame, wxFrame )
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 )
@@ -238,6 +241,38 @@ GridFrame::GridFrame()
fileMenu->Append( ID_VTABLE, wxT("&Virtual table test\tCtrl-V"));
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") );
@@ -2068,3 +2103,158 @@ void GridFrame::OnTabularTable(wxCommandEvent&)
{
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();
for ( i = topLeft.GetCol(); i <= bottomRight.GetCol(); i++ )
{
sizeRender.x += sizeinfo.GetSize( i );
}
// sum row heights
sizeinfo = grid->GetRowSizes();
for ( i = topLeft.GetRow(); i <= bottomRight.GetRow(); i++ )
{
sizeRender.y += sizeinfo.GetSize( i );
}
if ( styleRender & wxGRID_DRAW_ROWS_HEADER )
sizeRender.x += grid->GetRowLabelSize();
if ( styleRender & wxGRID_DRAW_COLS_HEADER )
sizeRender.y += grid->GetColLabelSize();
sizeRender.x *= zoom;
sizeRender.y *= zoom;
// delete any existing render frame and create new one
wxWindow* win = FindWindow( "frameRender" );
if ( win )
win->Destroy();
wxFrame* frame = new wxFrame( this, wxID_ANY, "Grid Render" );
frame->SetClientSize( 780, 400 );
frame->SetName( "frameRender" );
wxPanel* canvas = new wxPanel( frame, wxID_ANY );
// make bitmap large enough for margins if any
if ( !defSize )
sizeRender.IncBy( sizeMargin * 2 );
else
sizeRender.IncBy( sizeMargin );
wxBitmap bmp( sizeRender );
// don't leave it larger or drawing will be scaled
sizeRender.DecBy( sizeMargin * 2 );
wxMemoryDC memDc(bmp);
// default row labels have no background colour so set background
memDc.SetBackground( wxBrush( canvas->GetBackgroundColour() ) );
memDc.Clear();
// convert sizeRender to mapping mode units if necessary
if ( useLometric )
{
memDc.SetMapMode( wxMM_LOMETRIC );
wxSize sizePPI = memDc.GetPPI();
sizeRender.x = memDc.DeviceToLogicalXRel( sizeRender.x );
sizeRender.y = memDc.DeviceToLogicalYRel( sizeRender.y );
}
// pass wxDefaultSize if menu item is checked
if ( defSize )
sizeRender = wxDefaultSize;
grid->Render( memDc,
pointOrigin,
sizeRender,
topLeft, bottomRight,
wxGridRenderStyle( styleRender ) );
m_gridBitmap = bmp;
canvas->Bind( wxEVT_PAINT, &GridFrame::OnRenderPaint, this );
frame->Show();
}
void GridFrame::OnRenderPaint( wxPaintEvent& event )
{
wxPanel* canvas = ( wxPanel* )event.GetEventObject();
wxPaintDC dc( canvas );
canvas->PrepareDC( dc );
if ( !m_gridBitmap.IsOk() )
return;;
wxMemoryDC memDc( m_gridBitmap );
dc.Blit( 0, 0,
m_gridBitmap.GetWidth(),
m_gridBitmap.GetHeight(),
&memDc, 0, 0 );
}