vieworganizer.java

基于java的3d开发库。对坐java3d的朋友有很大的帮助。

//===========================================================================
import java.util.ArrayList;

public class ViewOrganizer
{
    private static void doLayout1(JoglView view)
    {
        view.setActive(true);
        view.setViewportStartXPercent(0.0);
        view.setViewportStartYPercent(0.0);
        view.setViewportSizeXPercent(1.0);
        view.setViewportSizeYPercent(1.0);
    }

    private static void doLayout2(ArrayList <JoglView> views, int style)
    {
        views.get(0).setActive(true);
        views.get(1).setActive(true);
        if ( style == 0 ) {
            views.get(0).setViewportStartXPercent(0.0);
            views.get(0).setViewportStartYPercent(0.0);
            views.get(0).setViewportSizeXPercent(0.5);
            views.get(0).setViewportSizeYPercent(1.0);

            views.get(1).setViewportStartXPercent(0.5);
            views.get(1).setViewportStartYPercent(0.0);
            views.get(1).setViewportSizeXPercent(0.5);
            views.get(1).setViewportSizeYPercent(1.0);
        }
        else {
            views.get(0).setViewportStartXPercent(0.0);
            views.get(0).setViewportStartYPercent(0.5);
            views.get(0).setViewportSizeXPercent(1.0);
            views.get(0).setViewportSizeYPercent(0.5);

            views.get(1).setViewportStartXPercent(0.0);
            views.get(1).setViewportStartYPercent(0.0);
            views.get(1).setViewportSizeXPercent(1.0);
            views.get(1).setViewportSizeYPercent(0.5);
        }
    }

    private static void doLayout3(ArrayList <JoglView> views, int style)
    {
        //-----------------------------------------------------------------
        double Pstart[][] = new double[3][2];
        double Psize[][] = new double[3][2];
        double p00 = 0;
        double p50 = 0.5;
        double p33 = 1.0/3.0;
        double p66 = 2.0/3.0;
        double p100 = 1;
        int i;

        //-----------------------------------------------------------------
        switch ( style % 6 ) {
          case 0:
            Pstart[0][0] = p00; Pstart[0][1] = p00;
            Pstart[1][0] = p00; Pstart[1][1] = p50;
            Pstart[2][0] = p50; Pstart[2][1] = p00;
            Psize[0][0] = p50; Psize[0][1] = p50;
            Psize[1][0] = p50; Psize[1][1] = p50;
            Psize[2][0] = p50; Psize[2][1] = p100;
            break;
          case 1:
            Pstart[0][0] = p00; Pstart[0][1] = p00;
            Pstart[1][0] = p50; Pstart[1][1] = p00;
            Pstart[2][0] = p50; Pstart[2][1] = p50;
            Psize[0][0] = p50; Psize[0][1] = p100;
            Psize[1][0] = p50; Psize[1][1] = p50;
            Psize[2][0] = p50; Psize[2][1] = p50;
            break;
          case 2:
            Pstart[0][0] = p00; Pstart[0][1] = p00;
            Pstart[1][0] = p50; Pstart[1][1] = p00;
            Pstart[2][0] = p00; Pstart[2][1] = p50;
            Psize[0][0] = p50; Psize[0][1] = p50;
            Psize[1][0] = p50; Psize[1][1] = p50;
            Psize[2][0] = p100; Psize[2][1] = p50;
            break;
          case 3:
            Pstart[0][0] = p00; Pstart[0][1] = p00;
            Pstart[1][0] = p00; Pstart[1][1] = p50;
            Pstart[2][0] = p50; Pstart[2][1] = p50;
            Psize[0][0] = p100; Psize[0][1] = p50;
            Psize[1][0] = p50; Psize[1][1] = p50;
            Psize[2][0] = p50; Psize[2][1] = p50;
            break;
          case 4:
            Pstart[0][0] = p00; Pstart[0][1] = p00;
            Pstart[1][0] = p33; Pstart[1][1] = p00;
            Pstart[2][0] = p66; Pstart[2][1] = p00;
            Psize[0][0] = p33; Psize[0][1] = p100;
            Psize[1][0] = p33; Psize[1][1] = p100;
            Psize[2][0] = p33; Psize[2][1] = p100;
            break;
          case 5:
            Pstart[0][0] = p00; Pstart[0][1] = p00;
            Pstart[1][0] = p00; Pstart[1][1] = p33;
            Pstart[2][0] = p00; Pstart[2][1] = p66;
            Psize[0][0] = p100; Psize[0][1] = p33;
            Psize[1][0] = p100; Psize[1][1] = p33;
            Psize[2][0] = p100; Psize[2][1] = p33;
            break;
        }
        //-----------------------------------------------------------------
        for ( i = 0; i < 3; i++ ) {
            views.get(i).setActive(true);
            views.get(i).setViewportStartXPercent(Pstart[i][0]);
            views.get(i).setViewportStartYPercent(Pstart[i][1]);
            views.get(i).setViewportSizeXPercent(Psize[i][0]);
            views.get(i).setViewportSizeYPercent(Psize[i][1]);
        }
    }

    private static void doLayout4(ArrayList <JoglView> views, int style)
    {
        //-----------------------------------------------------------------
        double Pstart[][] = new double[4][2];
        double Psize[][] = new double[4][2];
        double p00 = 0;
        double p25 = 0.25;
        double p33 = 1.0/3.0;
        double p50 = 0.5;
        double p66 = 2.0/3.0;
        double p75 = 0.25;
        double p100 = 1;
        int i;

        //-----------------------------------------------------------------
        switch ( style % 7 ) {
          case 0:
            Pstart[0][0] = p00; Pstart[0][1] = p00;
            Pstart[3][0] = p00; Pstart[3][1] = p33;
            Pstart[2][0] = p00; Pstart[2][1] = p66;
            Pstart[1][0] = p33; Pstart[1][1] = p00;
            Psize[0][0] = p33; Psize[0][1] = p33;
            Psize[3][0] = p33; Psize[3][1] = p33;
            Psize[2][0] = p33; Psize[2][1] = p33;
            Psize[1][0] = p66; Psize[1][1] = p100;
            break;
          case 1:
            Pstart[0][0] = p00; Pstart[0][1] = p00;
            Pstart[1][0] = p50; Pstart[1][1] = p00;
            Pstart[2][0] = p00; Pstart[2][1] = p50;
            Pstart[3][0] = p50; Pstart[3][1] = p50;
            Psize[0][0] = p50; Psize[0][1] = p50;
            Psize[1][0] = p50; Psize[1][1] = p50;
            Psize[2][0] = p50; Psize[2][1] = p50;
            Psize[3][0] = p50; Psize[3][1] = p50;
            break;
          case 2:
            Pstart[0][0] = p00; Pstart[0][1] = p00;
            Pstart[1][0] = p50; Pstart[1][1] = p00;
            Pstart[2][0] = p50; Pstart[2][1] = p33;
            Pstart[3][0] = p50; Pstart[3][1] = p66;
            Psize[0][0] = p50; Psize[0][1] = p100;
            Psize[1][0] = p50; Psize[1][1] = p33;
            Psize[2][0] = p50; Psize[2][1] = p33;
            Psize[3][0] = p50; Psize[3][1] = p33;
            break;
          case 3:
            Pstart[0][0] = p00; Pstart[0][1] = p00;
            Pstart[1][0] = p33; Pstart[1][1] = p00;
            Pstart[2][0] = p66; Pstart[2][1] = p00;
            Pstart[3][0] = p00; Pstart[3][1] = p50;
            Psize[0][0] = p33; Psize[0][1] = p50;
            Psize[1][0] = p33; Psize[1][1] = p50;
            Psize[2][0] = p33; Psize[2][1] = p50;
            Psize[3][0] = p100; Psize[3][1] = p50;
            break;
          case 4:
            Pstart[0][0] = p00; Pstart[0][1] = p00;
            Pstart[1][0] = p00; Pstart[1][1] = p50;
            Pstart[2][0] = p33; Pstart[2][1] = p50;
            Pstart[3][0] = p66; Pstart[3][1] = p50;
            Psize[0][0] = p100; Psize[0][1] = p50;
            Psize[1][0] = p33; Psize[1][1] = p50;
            Psize[2][0] = p33; Psize[2][1] = p50;
            Psize[3][0] = p33; Psize[3][1] = p50;
            break;
        }
        //-----------------------------------------------------------------
        for ( i = 0; i < 4; i++ ) {
            views.get(i).setActive(true);
            views.get(i).setViewportStartXPercent(Pstart[i][0]);
            views.get(i).setViewportStartYPercent(Pstart[i][1]);
            views.get(i).setViewportSizeXPercent(Psize[i][0]);
            views.get(i).setViewportSizeYPercent(Psize[i][1]);
        }
    }

    public static int doLayout(ArrayList <JoglView> views, int selectedForFullScreen, int style)
    {
        int i, selected = 0;
        JoglView view;

        if ( selectedForFullScreen >= 0 &&
             selectedForFullScreen < views.size() ) {
            for ( i = 0; i < views.size(); i++ ) {
                view = views.get(i);
                if ( i == selectedForFullScreen ) {
                    view.setActive(true);
                    view.setSelected(true);
                    doLayout1(view);
                    selected = i;
                }
                else {
                    view.setActive(false);
                    view.setSelected(false);
                }
            }
        }
        else {
            //-----------------------------------------------------------------
            boolean isSelected = false;
            for ( i = 0; i < views.size(); i++ ) {
                view = views.get(i);
                if ( !isSelected && view.getSelected() ) {
                    isSelected = true;
                    selected = i;
                    continue;
                }
                else if ( isSelected ) {
                    view.setSelected(false);
                }
            }
            if ( !isSelected && views.size() > 0 ) {
                views.get(0).setSelected(true);
                selected = 0;
            }

            //-----------------------------------------------------------------
            switch ( views.size() ) {
              case 0:
                System.out.println("Warning: NO VIEWS TO ORDER!");
                break;
            case 1:  doLayout1(views.get(0)); break;
              case 2:  doLayout2(views, style%2); break;
              case 3:  doLayout3(views, style%6); break;
              case 4:  doLayout4(views, style%5); break;
              default:
                System.out.println("Warning: Not supported layout, selecting first view full screen!");
                doLayout1(views.get(0));
                break;
            }
        }
        return selected;
    }
}

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//= EOF                                                                     =
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