source: GTP/trunk/App/Demos/Illum/explosion_DX/Parameters.cpp @ 1485

#include "dxstdafx.h" 
#include "Parameters.h"

float noconvert(float a) {
        return a;
}

float convertToMinusOne_One(float a) {
        return a*2.0-1.0;
}

void OnChange() {
}

void Parameters::Setup( CDXUTDialog* g_HUD ) {
        Setup(g_HUD, OnChange, OnChange, OnChange);
}

void Parameters::Setup( CDXUTDialog* g_HUD, ONCHANGE_CALLBACK OnReset, ONCHANGE_CALLBACK OnSave, ONCHANGE_CALLBACK OnLoad )
{
        assert( g_HUD != NULL );
        this->g_HUD = g_HUD;
        g_HUD->GetDefaultElement( DXUT_CONTROL_STATIC, 0 )->dwTextFormat = DT_VCENTER | DT_LEFT;

        for (int i=0; i<LAST_NUMBER; i++) {
                ffunc[i] = noconvert;
                chfunc[i] = OnChange;
        }

        int posX = 380; 
        int posY = 50 + LAST_BOOL*16; 
        g_HUD->AddButton( IDC_RESET_BUTTON, L"[R] Reset", posX, posY += 30, 60, 16, 'R' );
        g_HUD->AddButton( IDC_SAVE_BUTTON,  L"[S] Save",  posX + 70, posY, 60, 16, 'S' );
        g_HUD->AddButton( IDC_LOAD_BUTTON,  L"[L] Load",  posX + 140, posY, 60, 16, 'L' );
        chfunc[ LAST_NUMBER ] = OnReset;
        chfunc[ LAST_NUMBER+1 ] = OnSave;
        chfunc[ LAST_NUMBER+2 ] = OnLoad;
}

bool Parameters::Get( bool_t i ) {
        return bparam[i];
}

float Parameters::Get( number_t i ) {
        //assert( ffunc[i] != NULL );
        return ffunc[i]( (float)param[i] / numsteps[i] );       // 0..1
}

int Parameters::GetInt( number_t i ) {
        //assert( ffunc[i] != NULL );
        float r = (float)ffunc[i]( param[i] );
        return (int)(r+0.5);    // 0..numsteps[i]
}

void Parameters::Add( bool_t ID, char* label, char cHotKey ) {
        
        assert( cHotKey != 'R' && cHotKey != 'S' && cHotKey != 'L' );
        mbstowcs( bname[ID], label, CHARBUFFER_SIZE );

        int posX = 380; 
        int posY = 50; 
        g_HUD->AddCheckBox( ID+checkboxID0, bname[ID], posX, posY + ID*16, 150, 16, false, cHotKey, 0 );
        // checked=false
}

void Parameters::SetBool( bool_t ID, bool b ) {
        bparam[ID] = b;

        bSilent = true;
        if( g_HUD->GetCheckBox( ID+checkboxID0 ) != NULL )
                g_HUD->GetCheckBox( ID+checkboxID0 )->SetChecked( bparam[ID] );
        bSilent = false;
}

void Parameters::SetFloat( number_t ID, float v ) {
        SetInt( ID, (int)( v*numsteps[ID] + 0.5 ));
}

void Parameters::SetInt( number_t ID, int v ) {
        param[ID] = v;
        if ( param[ID] < 0 )    param[ID] = 0;
        else if ( param[ID] > numsteps[ID] )    param[ID] = numsteps[ID];

        bSilent = true;

        // minden frissül
        if( g_HUD->GetSlider( ID+sliderID0 ) != NULL )
                g_HUD->GetSlider( ID+sliderID0 )->SetValue( v );

        wchar_t text[30];
        _sntprintf( text, 30, L"%.2f", Get( (number_t)ID ) );

        if( g_HUD->GetStatic( ID+staticID0 ) != NULL )
                g_HUD->GetStatic( ID+staticID0 )->SetText( text );

        // user-defined callback
        //assert( chfunc[ID] != NULL );
        chfunc[ID]();

        bSilent = false;
}

void Parameters::Add( number_t ID, char* label, int num_steps) {
        Add( ID, label, num_steps, noconvert );
}

void Parameters::Add( number_t ID, char* label, int num_steps, CONVERTER ff, ONCHANGE_CALLBACK chf ) {
        char cKeyDown = 0;
        char cKeyUp = 0;
        Add( ID, label, num_steps, cKeyDown, cKeyUp, ff, chf);
}

void Parameters::Add( number_t ID, char* label, int num_steps, char cKeyDecr, char cKeyIncr, CONVERTER ff, ONCHANGE_CALLBACK chf ) {

        assert( cKeyDecr != 'R' && cKeyDecr != 'S' && cKeyDecr != 'L' );
        assert( cKeyIncr != 'R' && cKeyIncr != 'S' && cKeyIncr != 'L' );

        mbstowcs( name[ID], label, CHARBUFFER_SIZE );
        /*wchar_t val[30];
        _sntprintf( val, 30, L"%.2f", param[ID] / 100.0f );     // nem kell */

        //cHotKey
        ffunc[ID] = ff;
        chfunc[ID] = chf;
        numsteps[ID] = num_steps;

        int posX = 210; 
        int posY = 50; 
        g_HUD->AddStatic( 0, name[ID], posX-180, posY + ID*16, 120, 14 );
        g_HUD->AddStatic( ID+staticID0, L"", posX-50, posY + ID*16, 120, 14 );
        g_HUD->AddSlider( ID+sliderID0, posX, posY + ID*16, 120, 14, 0, num_steps,0 );
        //UpdateFromHUD( ID+sliderID0 );

        // hogy ne kelljen azt eltárolni, hogy melyik hotkey melyik sliderhez tartozik, 
        // 2 láthatatlan checkboxot hozok létre ezekkel a hotkeyekkel.
        // a checkbox id alapján azonosíthatom az érintett slidert.
        CDXUTCheckBox* c;
        g_HUD->AddCheckBox( ID+downID0, L"d", posX-20, posY + ID*16, 200, 16, 0, cKeyDecr, 0, &c );
        c->m_bVisible = false;
        g_HUD->AddCheckBox( ID+upID0, L"u", posX-20, posY + ID*16, 200, 16, 0, cKeyIncr, 0, &c );
        c->m_bVisible = false;
}

void Parameters::UpdateFromHUD( int controlID ) {

        //if (bSilent) return;

        // Reset, Save & Load buttons
        if (controlID == IDC_RESET_BUTTON ) {
                LoadFromFile( ".params0" );
                chfunc[ LAST_NUMBER ]();
        } 
        else if (controlID == IDC_SAVE_BUTTON ) {
                SaveToFile( ".params" );
                chfunc[ LAST_NUMBER+1 ]();
        }
        else if (controlID == IDC_LOAD_BUTTON ) {
                LoadFromFile( ".params" );
                chfunc[ LAST_NUMBER+2 ]();
        }

        // a checkbox
        else if (controlID >= checkboxID0 && controlID < checkboxID0+LAST_BOOL) {
                bool b = g_HUD->GetCheckBox( controlID )->GetChecked();
                int ID = controlID - checkboxID0;
                SetBool( (bool_t)ID, b);
        }

        // a slider
        else if (controlID >= sliderID0 && controlID < sliderID0+LAST_NUMBER)   {
                int v = g_HUD->GetSlider( controlID )->GetValue();
                int ID = controlID - sliderID0;
                SetInt( (number_t)ID, v);
        }

        // a hotkey (bound to an invisible checkbox) that decrements a slider
        else if (controlID >= downID0 && controlID < downID0+LAST_NUMBER)       {       // down
                int ID = controlID-downID0;
                SetInt( (number_t)ID, param[ID]-1 );
        }

        // a hotkey (bound to an invisible checkbox) that increments a slider
        else if (controlID >= upID0 && controlID < upID0+LAST_NUMBER) {                 // up
                int ID = controlID-upID0;
                SetInt( (number_t)ID, param[ID]+1 );
        }
}

void Parameters::SaveToFile( char* fileName ) {
        FILE* fileS;
        if( ( fileS = fopen( fileName, "wt" ) ) == NULL )
        {
                wchar_t wbuf[ CHARBUF ];
                mbstowcs( wbuf, fileName, CHARBUF );
                MessageBox( NULL, wbuf, L"File creation failed!", MB_ICONERROR );                       // show error message
                return;
        }

        fwprintf( fileS, L"----- RayTraceEffects: Saved parameters of the algorithm -----\n" );

        fwprintf( fileS, L"Bool values:\n" );
        for ( int i=0; i<LAST_BOOL; i++)
                fwprintf( fileS, L"%i", (int)bparam[i] );
        fwprintf( fileS, L"\n" );

        fwprintf( fileS, L"(" );
        for ( int i=0; i<LAST_BOOL; i++)
                fwprintf( fileS, L"%s; ", bname[i] );
        fwprintf( fileS, L")\n" );

        fwprintf( fileS, L"Float values:\n" );

        for ( int i=0; i<LAST_NUMBER; i++)
                fwprintf( fileS, L"%i \t(%s, 0..%i)\n", param[i], name[i], numsteps[i] );

        fclose(fileS);
}

void Parameters::LoadFromFile( char* fileName ) {
        FILE* fileL; 
    if( ( fileL = fopen( fileName, "rt" ) ) == NULL )
        {
                wchar_t wbuf[ CHARBUF ];
                mbstowcs( wbuf, fileName, CHARBUF );
                MessageBox( NULL, wbuf, L"File not found!", MB_ICONERROR );                     // show error message
                return;
        }

        char buf[ CHARBUF ];
        fgets( buf, CHARBUF, fileL );                   // skip comment
        fgets( buf, CHARBUF, fileL );                   // skip comment

        for ( int i=0; i<LAST_BOOL; i++)
        {
                int num = fgetc( fileL ) - '0';
                SetBool( (bool_t)i, num > 0 );
        }

        fgets( buf, CHARBUF, fileL );                   // skip line
        fgets( buf, CHARBUF, fileL );                   // skip comment
        fgets( buf, CHARBUF, fileL );                   // skip comment

        for ( int i=0; i<LAST_NUMBER; i++)
        {
                fgets( buf, CHARBUF, fileL );
                int v;
                sscanf( buf, "%i", &v );
                SetInt( (number_t)i, v );
        }

        fclose(fileL);
}