/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2004-2018 Jean-Pierre Charras jp.charras at wanadoo.fr
 * Copyright (C) 2010-2018 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * 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, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

/***************************************************************************/
/* Dialog editor for text on copper and technical layers (TEXTE_PCB class) */
/***************************************************************************/

#include <fctsys.h>
#include <gr_basic.h>
#include <class_drawpanel.h>
#include <pcbnew.h>
#include <pcb_edit_frame.h>
#include <draw_graphic_text.h>
#include <confirm.h>
#include <base_units.h>
#include <wx/valnum.h>
#include <widgets/text_ctrl_eval.h>

#include <class_board.h>
#include <class_pcb_text.h>

#include <vector>
#include <wx/wx.h>
#include <dialog_pcb_text_properties_base.h>
#include <pcb_layer_box_selector.h>
#include <board_commit.h>


class PCB_EDIT_FRAME;
class TEXTE_PCB;


class DIALOG_PCB_TEXT_PROPERTIES : public DIALOG_PCB_TEXT_PROPERTIES_BASE
{
public:
    DIALOG_PCB_TEXT_PROPERTIES( PCB_EDIT_FRAME* parent, TEXTE_PCB* passedTextPCB, wxDC* DC = nullptr );
    ~DIALOG_PCB_TEXT_PROPERTIES();

private:
    PCB_EDIT_FRAME*     m_Parent;
    wxDC*               m_DC;
    TEXTE_PCB*          m_SelectedPCBText;

    wxFloatingPointValidator<double>    m_OrientValidator;
    double              m_OrientValue;

    bool TransferDataToWindow() override;
    bool TransferDataFromWindow() override;

    // Virtual event handler
    virtual void OnInitDlg( wxInitDialogEvent& event ) override
    {
        // Call the default wxDialog handler of a wxInitDialogEvent
        TransferDataToWindow();

        // Now all widgets have the size fixed, call FinishDialogSettings
        FinishDialogSettings();
    }

    void OnCharHook( wxKeyEvent& aEvent );
};


/**
 *  DIALOG_PCB_TEXT_PROPERTIES, derived from DIALOG_PCB_TEXT_PROPERTIES_BASE
 *  @see dialog_dialog_pcb_text_properties_base.h and
 *  dialog_dialog_pcb_text_properties_base.cpp, automatically created by
 *  wxFormBuilder.
 */

DIALOG_PCB_TEXT_PROPERTIES::DIALOG_PCB_TEXT_PROPERTIES( PCB_EDIT_FRAME* parent,
                                                        TEXTE_PCB* passedTextPCB, wxDC* DC ) :
    DIALOG_PCB_TEXT_PROPERTIES_BASE( parent ),
    m_OrientValidator( 1, &m_OrientValue )
{
    m_Parent = parent;
    m_DC = DC;
    m_SelectedPCBText = passedTextPCB;

    m_OrientValue = 0.0;
    m_OrientValidator.SetRange( -360.0, 360.0 );
    m_OrientCtrl->SetValidator( m_OrientValidator );
    m_OrientValidator.SetWindow( m_OrientCtrl );

    m_StandardSizerOK->SetDefault();

    // wxTextCtrls fail to generate wxEVT_CHAR events when the wxTE_MULTILINE flag is set,
    // so we have to listen to wxEVT_CHAR_HOOK events instead.
    m_TextContentCtrl->Connect( wxEVT_CHAR_HOOK,
                                wxKeyEventHandler( DIALOG_PCB_TEXT_PROPERTIES::OnCharHook ),
                                NULL, this );
}


DIALOG_PCB_TEXT_PROPERTIES::~DIALOG_PCB_TEXT_PROPERTIES()
{
    m_TextContentCtrl->Disconnect( wxEVT_CHAR_HOOK,
                                   wxKeyEventHandler( DIALOG_PCB_TEXT_PROPERTIES::OnCharHook ),
                                   NULL, this );
}


/**
 * Routine for main window class to launch text properties dialog.
 */
void PCB_EDIT_FRAME::InstallTextPCBOptionsFrame( TEXTE_PCB* TextPCB, wxDC* DC )
{
    m_canvas->SetIgnoreMouseEvents( true );
#ifndef __WXMAC__
    DIALOG_PCB_TEXT_PROPERTIES dlg( this, TextPCB, DC );
#else
    // Avoid "writes" in the dialog, creates errors with WxOverlay and NSView
    // Raising an Exception - Fixes #891347
    DIALOG_PCB_TEXT_PROPERTIES dlg( this, TextPCB, NULL );
#endif
    dlg.ShowModal();
    m_canvas->MoveCursorToCrossHair();
    m_canvas->SetIgnoreMouseEvents( false );
}


void DIALOG_PCB_TEXT_PROPERTIES::OnCharHook( wxKeyEvent& aEvent )
{
    if( aEvent.GetKeyCode() == WXK_TAB )
    {
        int flags = 0;
        if( !aEvent.ShiftDown() )
            flags |= wxNavigationKeyEvent::IsForward;
        if( aEvent.ControlDown() )
            flags |= wxNavigationKeyEvent::WinChange;
        NavigateIn( flags );
    }
    else if( aEvent.GetKeyCode() == WXK_RETURN && aEvent.ShiftDown() )
    {
        TransferDataFromWindow();
        EndModal( 1 );
    }
    else
    {
        aEvent.Skip();
    }
}


bool DIALOG_PCB_TEXT_PROPERTIES::TransferDataToWindow()
{
    // Put units symbols to text labels where appropriate
    AddUnitSymbol( *m_SizeXLabel );
    AddUnitSymbol( *m_SizeYLabel );
    AddUnitSymbol( *m_ThicknessLabel );
    AddUnitSymbol( *m_PositionXLabel );
    AddUnitSymbol( *m_PositionYLabel );

    // Fill fields with current values
    *m_TextContentCtrl << m_SelectedPCBText->GetText();

    PutValueInLocalUnits( *m_SizeXCtrl, m_SelectedPCBText->GetTextWidth() );
    PutValueInLocalUnits( *m_SizeYCtrl, m_SelectedPCBText->GetTextHeight() );
    PutValueInLocalUnits( *m_ThicknessCtrl, m_SelectedPCBText->GetThickness() );
    PutValueInLocalUnits( *m_PositionXCtrl, m_SelectedPCBText->GetTextPos().x );
    PutValueInLocalUnits( *m_PositionYCtrl, m_SelectedPCBText->GetTextPos().y );

    // Configure the layers list selector
    m_LayerSelectionCtrl->SetLayersHotkeys( false );

    // A text has no sense on edge cut layer
    m_LayerSelectionCtrl->SetNotAllowedLayerSet( Edge_Cuts );
    m_LayerSelectionCtrl->SetBoardFrame( m_Parent );
    m_LayerSelectionCtrl->Resync();
    m_LayerSelectionCtrl->SetLayerSelection( m_SelectedPCBText->GetLayer() );

    m_OrientValue = m_SelectedPCBText->GetTextAngleDegrees();

    if( m_SelectedPCBText->IsMirrored() )
        m_DisplayCtrl->SetSelection( 1 );
    else
        m_DisplayCtrl->SetSelection( 0 );

    if( m_SelectedPCBText->IsItalic() )
        m_StyleCtrl->SetSelection( 1 );
    else
        m_StyleCtrl->SetSelection( 0 );

    // Set justification
    EDA_TEXT_HJUSTIFY_T hJustify = m_SelectedPCBText->GetHorizJustify();
    m_justifyChoice->SetSelection( (int) hJustify + 1 );

    // Manually set tab order
    m_SizeXCtrl->MoveAfterInTabOrder( m_TextContentCtrl );
    m_SizeYCtrl->MoveAfterInTabOrder( m_SizeXCtrl );
    m_ThicknessCtrl->MoveAfterInTabOrder( m_SizeYCtrl );
    m_PositionXCtrl->MoveAfterInTabOrder( m_ThicknessCtrl );
    m_PositionYCtrl->MoveAfterInTabOrder( m_PositionXCtrl );
    m_OrientCtrl->MoveAfterInTabOrder( m_PositionYCtrl );
    m_LayerSelectionCtrl->MoveAfterInTabOrder( m_OrientCtrl );
    m_StyleCtrl->MoveAfterInTabOrder( m_LayerSelectionCtrl );
    m_DisplayCtrl->MoveAfterInTabOrder( m_StyleCtrl );
    m_justifyChoice->MoveAfterInTabOrder( m_DisplayCtrl );

    // Set focus on most important control
    m_TextContentCtrl->SetFocus();
    m_TextContentCtrl->SetSelection( -1, -1 );

    return DIALOG_PCB_TEXT_PROPERTIES_BASE::TransferDataToWindow();
}


bool DIALOG_PCB_TEXT_PROPERTIES::TransferDataFromWindow()
{
    if( !DIALOG_PCB_TEXT_PROPERTIES_BASE::TransferDataFromWindow() )
        return false;

    BOARD_COMMIT commit( m_Parent );
    commit.Modify( m_SelectedPCBText );

    // Test for acceptable layer.
    // Incorrect layer can happen for old boards,
    // having texts on edge cut layer for instance
    if( m_LayerSelectionCtrl->GetLayerSelection() < 0 )
    {
        wxMessageBox( _( "No layer selected, Please select the text layer" ) );
        return false;
    }

    wxPoint newPosition;
    wxSize  newSize;

    // If no other command in progress, prepare undo command
    // (for a command in progress, will be made later, at the completion of command)
    int mask = EDA_ITEM_ALL_FLAGS - ( SELECTED | HIGHLIGHTED | BRIGHTENED );
    bool pushCommit = ( m_SelectedPCBText->GetFlags() & mask ) == 0;

    /* set flag in edit to force undo/redo/abort proper operation,
     * and avoid new calls to SaveCopyInUndoList for the same text
     * this can occurs when a text is moved, and then rotated, edited ..
    */
    if( m_SelectedPCBText->GetFlags() != 0 )
        m_SelectedPCBText->SetFlags( IN_EDIT );

#ifndef USE_WX_OVERLAY
    // Erase old text on screen if context is available
    if( m_DC )
    {
        m_SelectedPCBText->Draw( m_Parent->GetCanvas(), m_DC, GR_XOR );
    }
#endif

    // Set the new text content
    if( !m_TextContentCtrl->GetValue().IsEmpty() )
    {
        m_SelectedPCBText->SetText( m_TextContentCtrl->GetValue() );
    }

    // Set PCB Text position
    newPosition.x = ValueFromString( g_UserUnit, m_PositionXCtrl->GetValue() );
    newPosition.y = ValueFromString( g_UserUnit, m_PositionYCtrl->GetValue() );
    m_SelectedPCBText->SetTextPos( newPosition );

    // Check constraints and set PCB Text size
    newSize.x = ValueFromString( g_UserUnit, m_SizeXCtrl->GetValue() );
    newSize.y = ValueFromString( g_UserUnit, m_SizeYCtrl->GetValue() );

    if( newSize.x < TEXTS_MIN_SIZE )
        newSize.x = TEXTS_MIN_SIZE;

    if( newSize.y < TEXTS_MIN_SIZE )
        newSize.y = TEXTS_MIN_SIZE;

    if( newSize.x > TEXTS_MAX_WIDTH )
        newSize.x = TEXTS_MAX_WIDTH;

    if( newSize.y > TEXTS_MAX_WIDTH )
        newSize.y = TEXTS_MAX_WIDTH;

    m_SelectedPCBText->SetTextSize( newSize );

    // Set the new thickness
    m_SelectedPCBText->SetThickness( ValueFromString( g_UserUnit,
                                                      m_ThicknessCtrl->GetValue() ) );

    // Test for acceptable values for thickness and size and clamp if fails
    int maxthickness = Clamp_Text_PenSize( m_SelectedPCBText->GetThickness(),
                                           m_SelectedPCBText->GetTextSize()  );

    if( m_SelectedPCBText->GetThickness() > maxthickness )
    {
        DisplayError( NULL,
                      _( "The text thickness is too large for the text size. It will be clamped" ) );
        m_SelectedPCBText->SetThickness( maxthickness );
    }

    // Set the layer on which the PCB text is laying
    m_SelectedPCBText->SetLayer( ToLAYER_ID( m_LayerSelectionCtrl->GetLayerSelection() ) );

    // Set whether the PCB text is mirrored (faced down from layer face perspective)
    m_SelectedPCBText->SetMirrored( m_DisplayCtrl->GetSelection() == 1 );

    // Set the text angle
    m_SelectedPCBText->SetTextAngle( m_OrientValue * 10.0 );

    // Set whether the PCB text is slanted (it is not italics, as italics has additional curves in style)
    m_SelectedPCBText->SetItalic( m_StyleCtrl->GetSelection() );

    // Set justification
    switch( m_justifyChoice->GetSelection() )
    {
    case 0:
        m_SelectedPCBText->SetHorizJustify( GR_TEXT_HJUSTIFY_LEFT );
        break;
    case 1:
        m_SelectedPCBText->SetHorizJustify( GR_TEXT_HJUSTIFY_CENTER );
        break;
    case 2:
        m_SelectedPCBText->SetHorizJustify( GR_TEXT_HJUSTIFY_RIGHT );
        break;
    default:
        break;
    }

#ifndef USE_WX_OVERLAY
    // Finally, display new text if there is a context to do so
    if( m_DC )
    {
        m_SelectedPCBText->Draw( m_Parent->GetCanvas(), m_DC, GR_OR );
    }
#else
    m_Parent->Refresh();
#endif

    if( pushCommit )
        commit.Push( _( "Change text properties" ) );

    return true;
}