/*******************************************************/
/* Dialog frame to choose gerber layers and pcb layers */
/*******************************************************/

/* select_layers_to_pcb.cpp */

#include "fctsys.h"
#include "common.h"
#include "gerbview.h"

#include "protos.h"

#include "wx/statline.h"

/* Variables locales */
#define LAYER_UNSELECTED            NB_LAYERS

static int      ButtonTable[32];        // Indexes buttons to Gerber layers
static int      LayerLookUpTable[32];   // Indexes Gerber layers to PCB file layers
wxStaticText*   layer_list[32];         // Indexes text strings to buttons

enum swap_layer_id {
    ID_WINEDA_SWAPLAYERFRAME = 1800,
    ID_BUTTON_0,
    ID_TEXT_0 = ID_BUTTON_0 + 32
};


/***********************************************/
/* classe pour la frame de selection de layers */
/***********************************************/

class WinEDA_SwapLayerFrame: public wxDialog
{
private:
    WinEDA_GerberFrame*     m_Parent;
    wxBoxSizer*             OuterBoxSizer;
    wxBoxSizer*             MainBoxSizer;
    wxFlexGridSizer*        FlexColumnBoxSizer;
    wxStaticText*           label;
    wxButton*               Button;
    wxStaticText*           text;
    wxStaticLine*           Line;
    wxStdDialogButtonSizer* StdDialogButtonSizer;

public:

    // Constructor and destructor
    WinEDA_SwapLayerFrame(WinEDA_GerberFrame *parent);
    ~WinEDA_SwapLayerFrame() {};

private:
    void Sel_Layer(wxCommandEvent& event);
    void OnOkClick(wxCommandEvent& event);
    void OnCancelClick(wxCommandEvent& event);

    DECLARE_EVENT_TABLE()
};

/* Table des evenements pour WinEDA_SwapLayerFrame */
BEGIN_EVENT_TABLE(WinEDA_SwapLayerFrame, wxDialog)
    EVT_COMMAND_RANGE( ID_BUTTON_0, ID_BUTTON_0 + 31,
                       wxEVT_COMMAND_BUTTON_CLICKED,
                       WinEDA_SwapLayerFrame::Sel_Layer )
    EVT_BUTTON( wxID_OK, WinEDA_SwapLayerFrame::OnOkClick )
    EVT_BUTTON( wxID_CANCEL, WinEDA_SwapLayerFrame::OnCancelClick )
END_EVENT_TABLE()


/*************************************************************/
int * InstallDialogLayerPairChoice(WinEDA_GerberFrame * parent)
/*************************************************************/
/* Install a dialog frame to choose the equivalence
 * between gerber layers and pcbnew layers
 * return the "lookup table" if ok, or NULL
 */
{
    WinEDA_SwapLayerFrame * frame = new WinEDA_SwapLayerFrame(parent);

    int ii = frame->ShowModal();
    frame->Destroy();
    if( ii >= 0 )
        return LayerLookUpTable;
    else
        return NULL;
}


/*************************************************************************/
WinEDA_SwapLayerFrame::WinEDA_SwapLayerFrame(WinEDA_GerberFrame *parent) :
    wxDialog( parent, -1, _("Layer selection:"), wxPoint(-1, -1),
              wxDefaultSize, wxDEFAULT_DIALOG_STYLE|MAYBE_RESIZE_BORDER )
/*************************************************************************/
{
    OuterBoxSizer = NULL;
    MainBoxSizer = NULL;
    FlexColumnBoxSizer = NULL;
    label = NULL;
    Button = NULL;
    text = NULL;
    Line = NULL;
    StdDialogButtonSizer = NULL;

    m_Parent = parent;
    SetFont( *g_DialogFont );

    int item_ID, ii, nb_items;
    wxString msg;
    wxSize goodSize;

    // Experimentation has shown that buttons in the Windows version can be 20 pixels
    // wide and 20 pixels high, but that they need to be 26 pixels wide and 26 pixels
    // high in the Linux version. (And although the dimensions of those buttons could
    // be set to 26 pixels wide and 26 pixels high in both of those versions, that would
    // result in a dialog box which would be excessively high in the Windows version.)
#ifdef __WINDOWS__
    int w = 20;
    int h = 20;
#else
    int w = 26;
    int h = 26;
#endif
    // As currently implemented, the dimensions of the buttons in the Mac version are
    // also 26 pixels wide and 26 pixels high. If appropriate, the above code should be
    // modified as required in the event that those buttons should be some other size
    // in that version.

    // Compute a reasonable number of copper layers
    g_DesignSettings.m_CopperLayerCount = 0;
    for( ii = 0; ii < 32; ii++ )
    {
        if( g_GERBER_Descr_List[ii] != NULL )
            g_DesignSettings.m_CopperLayerCount++;

        // Specify the default value for each member of these arrays.
        ButtonTable[ii] = -1;
        LayerLookUpTable[ii] = LAYER_UNSELECTED; // Value associated with deselected Gerber layer
    }

    int pcb_layer_number = 0;
    for( nb_items = 0, ii = 0; ii < 32; ii++ )
    {
        if( g_GERBER_Descr_List[ii] == NULL )
            continue;

        if( (pcb_layer_number == g_DesignSettings.m_CopperLayerCount - 1)
         && (g_DesignSettings.m_CopperLayerCount > 1) )
            pcb_layer_number = CMP_N;

        ButtonTable[nb_items] = ii;
        LayerLookUpTable[ii] = pcb_layer_number;
        nb_items++;
        pcb_layer_number++;
    }

    OuterBoxSizer = new wxBoxSizer(wxVERTICAL);
    SetSizer(OuterBoxSizer);

    MainBoxSizer = new wxBoxSizer(wxHORIZONTAL);
    OuterBoxSizer->Add(MainBoxSizer, 1, wxGROW|wxLEFT|wxRIGHT|wxTOP, 5);

    for( ii = 0; ii < nb_items; ii++ )
    {
        // If more than 16 Gerber layers are used, provide a vertical line to
        // separate the two FlexGrid sizers
        if( (nb_items > 16) && (ii == 16) )
        {
            Line = new wxStaticLine( this, -1, wxDefaultPosition, wxDefaultSize, wxLI_VERTICAL );
            MainBoxSizer->Add(Line, 0, wxGROW|wxLEFT|wxRIGHT, 5);
        }

        // Provide a separate FlexGrid sizer for every sixteen sets of controls
        if( ii % 16 == 0 )
        {
            // Each Gerber layer has an associated static text string (to identify that layer),
            // a button (for invoking a child dialog box to change which pcbnew layer that the
            // Gerber layer is mapped to), and a second static text string (to depict which
            // pcbnew layer that the Gerber layer has been mapped to). Each of those items are
            // placed into the left hand column, middle column, and right hand column
            // (respectively) of the Flexgrid sizer, and the color of the second text string
            // is set to fushia or blue (to respectively indicate whether the Gerber layer has
            // been mapped to a pcbnew layer or is not being exported at all).
            // (Experimentation has shown that if a text control is used to depict which
            // pcbnew layer that each Gerber layer is mapped to (instead of a static text
            // string), then those controls do not behave in a fully satisfactory manner in
            // the Linux version. Even when the read-only attribute is specified for all of
            // those controls, they can still be selected when the arrow keys or Tab key is
            // used to step through all of the controls within the dialog box, and
            // directives to set the foreground color of the text of each such control to
            // blue (to indicate that the text is of a read-only nature) are disregarded.)

            // Specify a FlexGrid sizer with an appropriate number of rows and three columns.
            // If nb_items < 16, then the number of rows is nb_items; otherwise, the number of
            // rows is 16 (with two separate columns of controls being used if nb_items > 16).

            if( nb_items < 16 )
                FlexColumnBoxSizer = new wxFlexGridSizer(nb_items, 3, 0, 0);
            else
                FlexColumnBoxSizer = new wxFlexGridSizer(16, 3, 0, 0);

            // Specify that all of the rows can be expanded.
            for( int jj = 0; jj < MIN(nb_items, 16); jj++ )
            {
                FlexColumnBoxSizer->AddGrowableRow(jj);
            }

            // Specify that (just) the right-hand column can be expanded.
            FlexColumnBoxSizer->AddGrowableCol(2);

            MainBoxSizer->Add(FlexColumnBoxSizer, 1, wxGROW|wxTOP, 5);
        }

        // Provide a text string to identify the Gerber layer
        msg = _("Gerber layer ");
        msg << ButtonTable[ii] + 1;

        label = new wxStaticText( this, wxID_STATIC, msg, wxDefaultPosition, wxDefaultSize, wxALIGN_RIGHT );
        FlexColumnBoxSizer->Add(label, 0, wxALIGN_RIGHT|wxALIGN_CENTER_VERTICAL|wxLEFT|wxBOTTOM, 5);

        // Provide a button for this layer (which will invoke a child dialog box)
        item_ID = ID_BUTTON_0 + ii;

        Button = new wxButton( this, item_ID, wxT("..."), wxDefaultPosition, wxSize(w, h), 0 );
        FlexColumnBoxSizer->Add(Button, 0, wxALIGN_LEFT|wxALIGN_CENTER_VERTICAL|wxLEFT|wxBOTTOM, 5);

        // Provide another text string to specify which pcbnew layer that this
        // Gerber layer is initially mapped to, and set the initial text to
        // specify the appropriate pcbnew layer, and set the foreground color
        // of the text to fushia (to indicate that the layer is being exported).
        item_ID = ID_TEXT_0 + ii;

        // When the first of these text strings is being added, determine what size is necessary to
        // to be able to display any possible string without it being truncated. Then specify that
        // size as the minimum size for all of these text strings. (If this minimum size is not
        // determined in this fashion, then it is possible for the display of one or more of these
        // strings to be truncated after different pcbnew layers are selected.)
        if( ii == 0 )
        {
            msg = _( "Do not export" );
            text = new wxStaticText( this, item_ID, msg, wxDefaultPosition, wxDefaultSize, 0 );
            goodSize = text->GetSize();
            for( int jj = 0; jj < NB_LAYERS; jj++ )
            {
                text->SetLabel( ReturnPcbLayerName( jj ) );
                if( goodSize.x < text->GetSize().x )
                    goodSize.x = text->GetSize().x;
            }
            msg = ReturnPcbLayerName(LayerLookUpTable[ButtonTable[ii]]);
            text->SetLabel( msg );
        }
        else
        {
            msg = ReturnPcbLayerName(LayerLookUpTable[ButtonTable[ii]]);
            text = new wxStaticText( this, item_ID, msg, wxDefaultPosition, wxDefaultSize, 0 );
        }
        text->SetMinSize( goodSize );
        text->SetForegroundColour( wxColour(255, 0, 128) );
        FlexColumnBoxSizer->Add(text, 1, wxALIGN_LEFT|wxALIGN_CENTER_VERTICAL|wxLEFT|wxRIGHT|wxBOTTOM, 5);

        layer_list[ii] = text;
    }

    // If required, provide spacers to occupy otherwise blank cells within the
    // second FlexGrid sizer. (As it incorporates three columns, three spacers
    // are thus required for each otherwise unused row.)
    if( 16 < nb_items && nb_items < 32 )
    {
        for( ii = 3 * nb_items; ii < 96; ii++ )
        {
            FlexColumnBoxSizer->Add(5, h, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxLEFT|wxRIGHT|wxBOTTOM, 5);
        }
    }

    // Provide a line to separate the controls which have been provided so far
    // from the OK and Cancel buttons (which will be provided after this line)
    Line = new wxStaticLine( this, -1, wxDefaultPosition, wxDefaultSize, wxLI_HORIZONTAL );
    OuterBoxSizer->Add(Line, 0, wxGROW|wxLEFT|wxRIGHT|wxTOP, 5);

    // Provide a StdDialogButtonSizer to accommodate the OK and Cancel buttons;
    // using that type of sizer results in those buttons being automatically
    // located in positions appropriate for each (OS) version of KiCad.
    StdDialogButtonSizer = new wxStdDialogButtonSizer;
    OuterBoxSizer->Add(StdDialogButtonSizer, 0, wxGROW|wxALL, 10);

    Button = new wxButton( this, wxID_OK, _("&OK"), wxDefaultPosition, wxDefaultSize, 0 );
    Button->SetForegroundColour( *wxRED );
    StdDialogButtonSizer->AddButton(Button);

    Button = new wxButton( this, wxID_CANCEL, _("&Cancel"), wxDefaultPosition, wxDefaultSize, 0 );
    Button->SetForegroundColour( *wxBLUE );
    StdDialogButtonSizer->AddButton(Button);

    StdDialogButtonSizer->Realize();

    // Resize the dialog
    if( GetSizer() )
    {
        GetSizer()->SetSizeHints(this);
    }
}


/***************************************************************/
void WinEDA_SwapLayerFrame::Sel_Layer(wxCommandEvent& event)
/***************************************************************/
{
    int ii, jj;

    ii = event.GetId();

    if( ii < ID_BUTTON_0 || ii >= ID_BUTTON_0 + 32 )
        return;

    ii = event.GetId() - ID_BUTTON_0;

    jj = LayerLookUpTable[ButtonTable[ii]];
    if( (jj < 0) || (jj > LAYER_UNSELECTED) )
        jj = 0; // (Defaults to "Copper" layer.)
    jj = m_Parent->SelectLayer(jj, -1, -1, true);

    if( (jj < 0) || (jj > LAYER_UNSELECTED) )
        return;

    if( jj != LayerLookUpTable[ButtonTable[ii]] )
    {
        LayerLookUpTable[ButtonTable[ii]] = jj;
        if( jj == LAYER_UNSELECTED )
        {
            layer_list[ii]->SetLabel( _( "Do not export" ) );
            // Change the text color to blue (to highlight
            // that this layer is *not* being exported)
            layer_list[ii]->SetForegroundColour( *wxBLUE );
        }
        else
        {
            layer_list[ii]->SetLabel( ReturnPcbLayerName( jj ) );
            // Change the text color to fushia (to highlight
            // that this layer *is* being exported)
            layer_list[ii]->SetForegroundColour( wxColour(255, 0, 128) );
        }
    }
}


/*********************************************************/
void WinEDA_SwapLayerFrame::OnCancelClick(wxCommandEvent& event)
/*********************************************************/
{
    EndModal( -1 );
}


/*********************************************************/
void WinEDA_SwapLayerFrame::OnOkClick(wxCommandEvent& event)
/*********************************************************/
{
    int ii;
    bool AsCmpLayer = false;

    /* Compute the number of copper layers
     * this is the max layer number + 1 (if some internal layers exist)
     */
    g_DesignSettings.m_CopperLayerCount = 1;
    for( ii = 0; ii < 32; ii++ )
    {
        if( LayerLookUpTable[ii] == CMP_N )
            AsCmpLayer = true;
        else
        {
            if( LayerLookUpTable[ii] >= LAST_COPPER_LAYER )
                continue; // not a copper layer
            if( LayerLookUpTable[ii] >= g_DesignSettings.m_CopperLayerCount )
                g_DesignSettings.m_CopperLayerCount++;
        }
    }

    if( AsCmpLayer )
        g_DesignSettings.m_CopperLayerCount++;
    if( g_DesignSettings.m_CopperLayerCount > NB_COPPER_LAYERS ) // should not occur.
        g_DesignSettings.m_CopperLayerCount = NB_COPPER_LAYERS;

    EndModal( 1 );
}