dialogs_for_printing.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2013 CERN
 * Copyright The KiCad Developers, see AUTHORS.txt for contributors.
 *
 * @author Jean-Pierre Charras, jp.charras at wanadoo.fr
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

 
#include <base_units.h>
#include <gr_basic.h>
#include <drawing_sheet/ds_data_item.h>
#include <drawing_sheet/ds_data_model.h>
#include <drawing_sheet/ds_painter.h>
#include <dialogs/dialog_page_settings.h>
#include <math/vector2wx.h>
 
#include "invoke_pl_editor_dialog.h"
#include "pl_editor_frame.h"
#include "pl_editor_id.h"
 
#include <wx/msgdlg.h>
#include <wx/print.h>

class PLEDITOR_PRINTOUT : public wxPrintout
{
public:
    PLEDITOR_PRINTOUT( PL_EDITOR_FRAME* aParent, const wxString& aTitle ) :
        wxPrintout( aTitle )
    {
        wxASSERT( aParent != nullptr );
        m_parent = aParent;
    }
 
    bool OnPrintPage( int aPageNum ) override;
    bool HasPage( int aPageNum ) override { return ( aPageNum <= 2 ); }
    void GetPageInfo( int* minPage, int* maxPage, int* selPageFrom, int* selPageTo ) override;
    void PrintPage( int aPageNum );
 
private:
    PL_EDITOR_FRAME* m_parent;
};
 

class PLEDITOR_PREVIEW_FRAME : public wxPreviewFrame
{
public:
    PLEDITOR_PREVIEW_FRAME( wxPrintPreview* aPreview, PL_EDITOR_FRAME* aParent,
                            const wxString& aTitle, const wxPoint& aPos = wxDefaultPosition,
                            const wxSize& aSize = wxDefaultSize ) :
        wxPreviewFrame( aPreview, aParent, aTitle, aPos, aSize )
    {
        m_parent = aParent;
    }
 
    bool Show( bool show ) override
    {
        bool        ret;
 
        // Show or hide the window.  If hiding, save current position and size.
        // If showing, use previous position and size.
        if( show )
        {
            bool centre = false;
 
            if( s_size.x == 0 || s_size.y == 0 )
            {
                s_size = ( m_parent->GetSize() * 3 ) / 4;
                s_pos = wxDefaultPosition;
                centre = true;
            }
 
            SetSize( s_pos.x, s_pos.y, s_size.x, s_size.y, 0 );
 
            if( centre )
                Center();
 
            ret = wxPreviewFrame::Show( show );
        }
        else
        {
            // Save the dialog's position & size before hiding
            s_size = GetSize();
            s_pos  = GetPosition();
 
            ret = wxPreviewFrame::Show( show );
        }
 
        return ret;
    }
 
private:
    PL_EDITOR_FRAME* m_parent;
 
    static wxPoint  s_pos;
    static wxSize   s_size;
 
    DECLARE_CLASS( PLEDITOR_PREVIEW_FRAME )
    DECLARE_EVENT_TABLE()
    DECLARE_NO_COPY_CLASS( PLEDITOR_PREVIEW_FRAME )
};
 
 
wxPoint PLEDITOR_PREVIEW_FRAME::s_pos;
wxSize  PLEDITOR_PREVIEW_FRAME::s_size;
 
 
IMPLEMENT_CLASS( PLEDITOR_PREVIEW_FRAME, wxPreviewFrame )
 
 
BEGIN_EVENT_TABLE( PLEDITOR_PREVIEW_FRAME, wxPreviewFrame )
    EVT_CLOSE( PLEDITOR_PREVIEW_FRAME::OnCloseWindow )
END_EVENT_TABLE()
 
 
bool PLEDITOR_PRINTOUT::OnPrintPage( int aPageNum )
{
    PrintPage( aPageNum );
    return true;
}
 
 
void PLEDITOR_PRINTOUT::GetPageInfo( int* minPage, int* maxPage,
                                     int* selPageFrom, int* selPageTo )
{
    *minPage = *selPageFrom = 1;
    *maxPage = *selPageTo   = 2;
}
 
 
void PLEDITOR_PRINTOUT::PrintPage( int aPageNum )
{
    VECTOR2I  tmp_startvisu;
    wxSize   pageSizeIU;             // Page size in internal units
    VECTOR2I     old_org;
    wxRect   fitRect;
    wxDC*    dc = GetDC();
    BASE_SCREEN* screen = m_parent->GetScreen();
 
    // Save current offsets and clip box.
    tmp_startvisu = screen->m_StartVisu;
    old_org = screen->m_DrawOrg;
 
    // Change scale factor and offset to print the whole page.
    pageSizeIU = ToWxSize( m_parent->GetPageSettings().GetSizeIU( drawSheetIUScale.IU_PER_MILS ) );
    FitThisSizeToPaper( pageSizeIU );
    fitRect = GetLogicalPaperRect();
 
    int xoffset = ( fitRect.width - pageSizeIU.x ) / 2;
    int yoffset = ( fitRect.height - pageSizeIU.y ) / 2;
 
    OffsetLogicalOrigin( xoffset, yoffset );
 
    GRResetPenAndBrush( dc );
    GRForceBlackPen( true );
 
    COLOR4D bg_color = m_parent->GetDrawBgColor();
    m_parent->SetDrawBgColor( WHITE );
 
    screen->SetVirtualPageNumber( aPageNum );
 
    KIGFX::DS_RENDER_SETTINGS renderSettings;
    renderSettings.SetDefaultPenWidth( 1 );
    renderSettings.SetLayerColor( LAYER_DRAWINGSHEET, COLOR4D( RED ) );
    renderSettings.SetPrintDC( dc );
 
    // Ensure the scaling factor (used only in printing) of bitmaps is up to date
    DS_DATA_MODEL& model = DS_DATA_MODEL::GetTheInstance();
 
    for( DS_DATA_ITEM* dataItem : model.GetItems() )
    {
        if( dataItem->GetType() == DS_DATA_ITEM::DS_BITMAP )
        {
            BITMAP_BASE* bitmap = static_cast<DS_DATA_ITEM_BITMAP*>( dataItem )->m_ImageBitmap;
            bitmap->SetPixelSizeIu( drawSheetIUScale.IU_PER_MILS * 1000 / bitmap->GetPPI() );
        }
    }
 
    m_parent->PrintDrawingSheet( &renderSettings, screen, nullptr, drawSheetIUScale.IU_PER_MILS,
                                 wxEmptyString );
 
    m_parent->SetDrawBgColor( bg_color );
 
    GRForceBlackPen( false );
 
    screen->m_StartVisu = tmp_startvisu;
    screen->m_DrawOrg   = old_org;
 
    // PrintDrawingSheet clears the current display list when calling BuildDrawItemsList()
    // So rebuild and redraw it.
    m_parent->GetCanvas()->DisplayDrawingSheet();
}
 
 
int InvokeDialogPrint( PL_EDITOR_FRAME* aCaller, wxPrintData* aPrintData,
                       wxPageSetupDialogData* aPageSetupData )
{
    int pageCount = 2;
 
    wxPrintDialogData printDialogData( *aPrintData );
    printDialogData.SetMaxPage( pageCount );
 
    if( pageCount > 1 )
        printDialogData.EnablePageNumbers( true );
 
    wxPrinter printer( &printDialogData );
    PLEDITOR_PRINTOUT printout( aCaller, _( "Print Drawing Sheet" ) );
 
    if( !printer.Print( aCaller, &printout, true ) )
    {
        if( wxPrinter::GetLastError() == wxPRINTER_ERROR )
            wxMessageBox( _( "An error occurred attempting to print the drawing sheet." ),
                          _( "Printing" ), wxOK );
        return 0;
    }
 
    *aPageSetupData = printer.GetPrintDialogData().GetPrintData();
 
    return 1;
}
 
 
int InvokeDialogPrintPreview( PL_EDITOR_FRAME* aCaller, wxPrintData* aPrintData )
{
    // Pass two printout objects: for preview, and possible printing.
    wxString        title   = _( "Preview" );
    wxPrintPreview* preview = new wxPrintPreview( new PLEDITOR_PRINTOUT( aCaller, title ),
                                                  new PLEDITOR_PRINTOUT( aCaller, title ),
                                                  aPrintData );
 
    preview->SetZoom( 70 );
 
    PLEDITOR_PREVIEW_FRAME* frame = new PLEDITOR_PREVIEW_FRAME( preview, aCaller, title );
 
    frame->Initialize();
    frame->Show( true );
 
    return 1;
}