C++ HSliderControl::setWidth方法代码示例

    void
    addControls(HSLColorFilter* filter, Container* container, unsigned i)
    {
        // the outer container:
        Grid* s_layerBox = container->addControl(new Grid());
        s_layerBox->setBackColor(0,0,0,0.5);
        s_layerBox->setMargin( 10 );
        s_layerBox->setPadding( 10 );
        s_layerBox->setChildSpacing( 10 );
        s_layerBox->setChildVertAlign( Control::ALIGN_CENTER );
        s_layerBox->setAbsorbEvents( true );
        s_layerBox->setVertAlign( Control::ALIGN_TOP );

        // Title:
        s_layerBox->setControl( 0, 0, new LabelControl(Stringify()<<"Layer "<<i, osg::Vec4(1,1,0,1)));
        
        // Hue:
        LabelControl* hLabel = new LabelControl( "Hue" );      
        hLabel->setVertAlign( Control::ALIGN_CENTER );
        s_layerBox->setControl( 0, 1, hLabel );

        HSliderControl* hAdjust = new HSliderControl( -1.0f, 1.0f, 0.0f, new SetHSL(filter,0) );
        hAdjust->setWidth( 125 );
        hAdjust->setHeight( 12 );
        hAdjust->setVertAlign( Control::ALIGN_CENTER );
        s_layerBox->setControl( 1, 1, hAdjust );
        s_layerBox->setControl( 2, 1, new LabelControl(hAdjust) );

        // Saturation:
        LabelControl* sLabel = new LabelControl( "Saturation" );      
        sLabel->setVertAlign( Control::ALIGN_CENTER );
        s_layerBox->setControl( 0, 2, sLabel );

        HSliderControl* sAdjust = new HSliderControl( -1.0f, 1.0f, 0.0f, new SetHSL(filter,1) );
        sAdjust->setWidth( 125 );
        sAdjust->setHeight( 12 );
        sAdjust->setVertAlign( Control::ALIGN_CENTER );
        s_layerBox->setControl( 1, 2, sAdjust );
        s_layerBox->setControl( 2, 2, new LabelControl(sAdjust) );

        // Lightness
        LabelControl* lLabel = new LabelControl( "Lightness" );      
        lLabel->setVertAlign( Control::ALIGN_CENTER );
        s_layerBox->setControl( 0, 3, lLabel );

        HSliderControl* lAdjust = new HSliderControl( -1.0f, 1.0f, 0.0f, new SetHSL(filter,2) );
        lAdjust->setWidth( 125 );
        lAdjust->setHeight( 12 );
        lAdjust->setVertAlign( Control::ALIGN_CENTER );
        s_layerBox->setControl( 1, 3, lAdjust );
        s_layerBox->setControl( 2, 3, new LabelControl(lAdjust) );

        // Reset button
        LabelControl* resetButton = new LabelControl( "Reset" );
        resetButton->setBackColor( osg::Vec4(0.5,0.5,0.5,1) );
        resetButton->setActiveColor( osg::Vec4(0.5,0.5,1,1) );
        resetButton->addEventHandler( new ResetHSL(hAdjust, sAdjust, lAdjust) );
        s_layerBox->setControl( 1, 4, resetButton );
    }

void
createLayerItem( Grid* grid, int gridRow, int layerIndex, int numLayers, TerrainLayer* layer, bool isActive )
{
    // a checkbox to enable/disable the layer:
    CheckBoxControl* enabled = new CheckBoxControl( layer->getVisible() );
    enabled->addEventHandler( new LayerVisibleHandler(layer) );
    grid->setControl( 0, gridRow, enabled );

    // the layer name
    LabelControl* name = new LabelControl( layer->getName() );
    grid->setControl( 1, gridRow, name );

    ImageLayer* imageLayer = dynamic_cast< ImageLayer* > (layer );
    if (imageLayer)
    {
        // an opacity slider
        HSliderControl* opacity = new HSliderControl( 0.0f, 1.0f, imageLayer->getOpacity() );
        opacity->setWidth( 125 );
        opacity->setHeight( 12 );
        opacity->addEventHandler( new LayerOpacityHandler(imageLayer) );
        grid->setControl( 2, gridRow, opacity );
    }

    // move buttons
    if ( layerIndex < numLayers-1 && isActive )
    {
        LabelControl* upButton = new LabelControl( "UP", 14 );
        upButton->setBackColor( .4,.4,.4,1 );
        upButton->setActiveColor( .8,0,0,1 );
        upButton->addEventHandler( new MoveLayerHandler( layer, layerIndex+1 ) );
        grid->setControl( 3, gridRow, upButton );
    }
    if ( layerIndex > 0 && isActive)
    {
        LabelControl* upButton = new LabelControl( "DOWN", 14 );
        upButton->setBackColor( .4,.4,.4,1 );
        upButton->setActiveColor( .8,0,0,1 );
        upButton->addEventHandler( new MoveLayerHandler( layer, layerIndex-1 ) );
        grid->setControl( 4, gridRow, upButton );
    }

    // add/remove button:
    LabelControl* addRemove = new LabelControl( isActive? "REMOVE" : "ADD", 14 );
    addRemove->setHorizAlign( Control::ALIGN_CENTER );
    addRemove->setBackColor( .4,.4,.4,1 );
    addRemove->setActiveColor( .8,0,0,1 );
    if ( isActive )
        addRemove->addEventHandler( new RemoveLayerHandler(layer) );
    else
        addRemove->addEventHandler( new AddLayerHandler(layer) );
    grid->setControl( 5, gridRow, addRemove );
}

void
createModelLayerItem( Grid* grid, int gridRow, ModelLayer* layer, bool isActive )
{
    // a checkbox to enable/disable the layer:
    CheckBoxControl* enabled = new CheckBoxControl( layer->getVisible() );
    enabled->addEventHandler( new ModelLayerVisibleHandler(layer) );
    grid->setControl( 0, gridRow, enabled );

    // the layer name
    LabelControl* name = new LabelControl( layer->getName() );
    grid->setControl( 1, gridRow, name );

    // an opacity slider
    HSliderControl* opacity = new HSliderControl( 0.0f, 1.0f, layer->getOpacity() );
    opacity->setWidth( 125 );
    opacity->setHeight( 12 );
    opacity->addEventHandler( new ModelLayerOpacityHandler(layer) );
    grid->setControl( 2, gridRow, opacity );
}

void
createControls( ControlCanvas* cs )
{
    // a container centered on the screen, containing an image and a text label.
    {
        VBox* center = new VBox();
        center->setFrame( new RoundedFrame() );
        center->getFrame()->setBackColor( 1,1,1,0.5 );
        center->setPadding( 10 );
        center->setHorizAlign( Control::ALIGN_CENTER );
        center->setVertAlign( Control::ALIGN_CENTER );

        // Add an image:
        osg::ref_ptr<osg::Image> image = osgDB::readImageFile("http://demo.pelicanmapping.com/rmweb/readymap_logo.png");
        if ( image.valid() )
        {
            s_imageControl = new ImageControl( image.get() );
            s_imageControl->setHorizAlign( Control::ALIGN_CENTER );
            s_imageControl->setFixSizeForRotation( true );
            //imageCon->addEventHandler( new ImageRotationHandler );
            center->addControl( s_imageControl );
            center->setHorizAlign( Control::ALIGN_CENTER );
        }

        // Add a text label:
        LabelControl* label = new LabelControl( "osgEarth Controls Toolkit" );
        label->setFont( osgEarth::Registry::instance()->getDefaultFont() );
        label->setFontSize( 24.0f );
        label->setHorizAlign( Control::ALIGN_CENTER );
        label->setMargin( 5 );
        center->addControl( label );

        // Rotation slider
        HBox* rotateBox = new HBox();
        rotateBox->setChildVertAlign( Control::ALIGN_CENTER );
        rotateBox->setHorizFill( true );
        rotateBox->setBackColor( Color::Blue );
        {
            rotateBox->addControl( new LabelControl("Rotate: ") );

            HSliderControl* rotateSlider = new HSliderControl( -180.0, 180.0, 0.0 );
            rotateSlider->addEventHandler( new RotateImage() );
            rotateSlider->setHeight( 8.0f );
            rotateSlider->setHorizFill( true );
            rotateBox->addControl( rotateSlider );
        }
        center->addControl( rotateBox );

        cs->addControl( center );
    }

    // a simple vbox with absolute positioning in the upper left with two text labels.
    {
        VBox* ul = new VBox();
        ul->setPosition( 20, 20 );
        ul->setPadding( 10 );
        {
            LabelControl* title = new LabelControl( "Upper left control", 22, osg::Vec4f(1,1,0,1) );
            ul->addControl( title );

            LabelControl* content = new LabelControl( "Here is some text in the upper left control" );
            ul->addControl( content );

            HBox* c2 = new HBox();
            c2->setChildSpacing( 10 );
            {
                HSliderControl* slider = new HSliderControl( 0, 100 );
                slider->setBackColor( .6,0,0,1 );
                slider->setHeight( 25 );
                slider->setWidth( 300 );
                slider->addEventHandler( new MySliderHandler() );
                c2->addControl( slider );

                s_sliderLabel = new LabelControl();
                s_sliderLabel->setVertAlign( Control::ALIGN_CENTER );
                c2->addControl( s_sliderLabel );        
            }
            ul->addControl( c2 );

            HBox* c3 = new HBox();
            c3->setHorizAlign( Control::ALIGN_CENTER );
            c3->setChildSpacing( 10 );
            {
                HBox* c4 = new HBox();
                c4->setChildSpacing( 5 );
                {
                    c4->addControl( new CheckBoxControl( true ) );
                    c4->addControl( new LabelControl( "Checkbox 1" ) );
                }
                c3->addControl( c4 );

                HBox* c5 = new HBox();
                c5->setChildSpacing( 5 );
                {
                    c5->addControl( new CheckBoxControl( false ) );
                    c5->addControl( new LabelControl( "Checkbox 2" ) );
                }
                c3->addControl( c5 );
            }
            ul->addControl( c3 );
//.........这里部分代码省略.........

void
createControls( ControlCanvas* cs )
{
    // a container centered on the screen, containing an image and a text label.
    {
        VBox* center = new VBox();
        center->setFrame( new RoundedFrame() );
        center->getFrame()->setBackColor( 1,1,1,0.5 );
        center->setPadding( 10 );
        center->setHorizAlign( Control::ALIGN_CENTER );
        center->setVertAlign( Control::ALIGN_CENTER );

        // Add an image:
        osg::Image* image = osgDB::readImageFile( "http://osgearth.org/chrome/site/osgearth.gif" );
        if ( image ) {
            ImageControl* imageCon = new ImageControl( image );
            imageCon->setHorizAlign( Control::ALIGN_CENTER );
            imageCon->setFixSizeForRotation( true );
            imageCon->addEventHandler( new ImageRotationHandler );
            center->addControl( imageCon );
            center->setHorizAlign( Control::ALIGN_CENTER );
        }

        // Add a text label:
        LabelControl* label = new LabelControl( "osgEarth Controls Toolkit" );
        label->setFont( osgText::readFontFile( "arialbd.ttf" ) );
        label->setFontSize( 24.0f );
        label->setHorizAlign( Control::ALIGN_CENTER );
        label->setMargin( 5 );
        center->addControl( label );

        // Add another
        LabelControl* label2 = new LabelControl( "(Click the osgEarth logo to rotate it)" );
        label2->setHorizAlign( Control::ALIGN_CENTER );
        center->addControl( label2 );

        cs->addControl( center );
    }

    // a simple vbox with absolute positioning in the upper left with two text labels.
    {
        VBox* ul = new VBox();
        ul->setFrame( new Frame() );
        ul->setPosition( 20, 20 );
        ul->setPadding( 10 );
        {
            LabelControl* title = new LabelControl( "Upper left control", 22, osg::Vec4f(1,1,0,1) );
            ul->addControl( title );

            LabelControl* content = new LabelControl( "Here is some text in the upper left control" );
            ul->addControl( content );

            HBox* c2 = new HBox();
            c2->setSpacing( 10 );
            {
                HSliderControl* slider = new HSliderControl( 0, 100 );
                slider->setBackColor( .6,0,0,1 );
                slider->setHeight( 25 );
                slider->setWidth( 300 );
                slider->addEventHandler( new MySliderHandler() );
                c2->addControl( slider );

                s_sliderLabel = new LabelControl();
                s_sliderLabel->setVertAlign( Control::ALIGN_CENTER );
                c2->addControl( s_sliderLabel );        
            }
            ul->addControl( c2 );

            HBox* c3 = new HBox();
            c3->setHorizAlign( Control::ALIGN_CENTER );
            c3->setSpacing( 10 );
            {
                HBox* c4 = new HBox();
                c4->setSpacing( 5 );
                {
                    c4->addControl( new CheckBoxControl( true ) );
                    c4->addControl( new LabelControl( "Checkbox 1" ) );
                }
                c3->addControl( c4 );

                HBox* c5 = new HBox();
                c5->setSpacing( 5 );
                {
                    c5->addControl( new CheckBoxControl( false ) );
                    c5->addControl( new LabelControl( "Checkbox 2" ) );
                }
                c3->addControl( c5 );
            }
            ul->addControl( c3 );
        }
        cs->addControl( ul );

        ul->addEventHandler( new MyClickHandler );
    }

    // a centered hbox container along the bottom on the screen.
    {
        HBox* bottom = new HBox();
        bottom->setFrame( new RoundedFrame() );
        bottom->getFrame()->setBackColor(0,0,0,0.5);
//.........这里部分代码省略.........

//.........这里部分代码省略.........
    if (!earthNode)
        return usage( "Unable to load earth model." );

    osgViewer::Viewer viewer(arguments);
    
    EarthManipulator* manip = new EarthManipulator();
    viewer.setCameraManipulator( manip );

    osg::Group* root = new osg::Group();
    root->addChild( earthNode );

    //Create the control panel
    root->addChild( createControlPanel(&viewer) );

    viewer.setSceneData( root );
    
    osgEarth::MapNode* mapNode = osgEarth::MapNode::findMapNode( earthNode );
    if ( mapNode )
    {

        for (unsigned int i = 0; i < imageFiles.size(); i++)
        {
            std::string imageFile = imageFiles[i];
            //Read the image file and play it if it's a movie
            osg::Image* image = osgDB::readImageFile(imageFile);
            if (image)
            {
                osg::ImageStream* is = dynamic_cast<osg::ImageStream*>(image);
                if (is)
                {
                    is->play();
                }
            }

            //Create a new ImageOverlay and set it's bounds
            //ImageOverlay* overlay = new ImageOverlay(mapNode->getMap()->getProfile()->getSRS()->getEllipsoid(), image);        
            ImageOverlay* overlay = new ImageOverlay(mapNode);
            overlay->setImage( image );
            overlay->setBounds(imageBounds[i]);

            root->addChild( overlay );


            //Create a new ImageOverlayEditor and set it's node mask to 0 to hide it initially
#if OSG_MIN_VERSION_REQUIRED(2,9,6)
            osg::Node* editor = new ImageOverlayEditor( overlay);
#else
            //Just make an empty group for pre-2.9.6
            osg::Node* editor = new osg::Group;
#endif
            editor->setNodeMask( 0 );
            root->addChild( editor );      
            
            // Add an image preview
            ImageControl* imageCon = new ImageControl( image );
            imageCon->setSize( 64, 64 );
            imageCon->setVertAlign( Control::ALIGN_CENTER );
            s_layerBox->setControl( 0, i, imageCon );            


            //Add some controls        
            CheckBoxControl* enabled = new CheckBoxControl( true );
            enabled->addEventHandler( new EnabledHandler(overlay) );
            enabled->setVertAlign( Control::ALIGN_CENTER );
            s_layerBox->setControl( 1, i, enabled );

            //The overlay name
            LabelControl* name = new LabelControl( osgDB::getSimpleFileName( imageFile) );      
            name->setVertAlign( Control::ALIGN_CENTER );
            s_layerBox->setControl( 2, i, name );

            // an opacity slider
            HSliderControl* opacity = new HSliderControl( 0.0f, 1.0f, overlay->getAlpha() );
            opacity->setWidth( 125 );
            opacity->setHeight( 12 );
            opacity->setVertAlign( Control::ALIGN_CENTER );
            opacity->addEventHandler( new OpacityHandler(overlay) );
            s_layerBox->setControl( 3, i, opacity );

            // Add a text label:
            LabelControl* edit = new LabelControl( "Edit" );        
            edit->setVertAlign( Control::ALIGN_CENTER );
            edit->addEventHandler(new EditHandler(overlay, &viewer, editor));
            s_layerBox->setControl(4, i, edit );
        }        
    }

    // osgEarth benefits from pre-compilation of GL objects in the pager. In newer versions of
    // OSG, this activates OSG's IncrementalCompileOpeartion in order to avoid frame breaks.
    viewer.getDatabasePager()->setDoPreCompile( true );

    // add some stock OSG handlers:
    viewer.addEventHandler(new osgViewer::StatsHandler());
    viewer.addEventHandler(new osgViewer::WindowSizeHandler());    
    viewer.addEventHandler(new osgViewer::LODScaleHandler());
    viewer.addEventHandler(new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()));
    viewer.addEventHandler(new osgViewer::HelpHandler(arguments.getApplicationUsage()));

    return viewer.run();
}

void
addLayerItem( Grid* grid, int layerIndex, int numLayers, Layer* layer, bool isActive )
{
    int gridCol = 0;
    int gridRow = grid->getNumRows();

    VisibleLayer* visibleLayer = dynamic_cast<VisibleLayer*>(layer);

    // only show layers that derive from VisibleLayer
    if (!visibleLayer)
        return;

    ImageLayer* imageLayer = dynamic_cast<ImageLayer*>(layer);

    // don't show hidden coverage layers
    if (imageLayer && imageLayer->isCoverage() && !imageLayer->getVisible())
        return;
    
    ElevationLayer* elevationLayer = dynamic_cast<ElevationLayer*>(layer);

    // a checkbox to toggle the layer's visibility:
    if (visibleLayer && layer->getEnabled() && !(imageLayer && imageLayer->isCoverage()))
    {
        CheckBoxControl* visibility = new CheckBoxControl( visibleLayer->getVisible() );
        visibility->addEventHandler( new ToggleLayerVisibility(visibleLayer) );
        grid->setControl( gridCol, gridRow, visibility );
    }
    gridCol++;

    // the layer name
    LabelControl* name = new LabelControl( layer->getName() );
    if (!layer->getEnabled())
        name->setForeColor(osg::Vec4f(1,1,1,0.35));
    grid->setControl( gridCol, gridRow, name );
    gridCol++;

    // layer type
    std::string typeName = typeid(*layer).name();
    typeName = typeName.substr(typeName.find_last_of(":")+1);
    LabelControl* typeLabel = new LabelControl(typeName, osg::Vec4(.5,.7,.5,1));
    grid->setControl( gridCol, gridRow, typeLabel );
    gridCol++;

    // status indicator
    LabelControl* statusLabel =
        layer->getStatus().isError() ? new LabelControl("[error]", osg::Vec4(1,0,0,1)) :
        !layer->getEnabled()?          new LabelControl("[disabled]", osg::Vec4(1,1,1,0.35)) :
                                       new LabelControl("[ok]", osg::Vec4(0,1,0,1)) ;
    grid->setControl( gridCol, gridRow, statusLabel );
    gridCol++;

    if (visibleLayer && !elevationLayer && visibleLayer->getEnabled())
    {
        // an opacity slider
        HSliderControl* opacity = new HSliderControl( 0.0f, 1.0f, visibleLayer->getOpacity() );
        opacity->setWidth( 125 );
        opacity->setHeight( 12 );
        opacity->addEventHandler( new LayerOpacityHandler(visibleLayer) );
        grid->setControl( gridCol, gridRow, opacity );
    }
    gridCol++;

    // zoom button
    if (layer->getExtent().isValid())
    {
        LabelControl* zoomButton = new LabelControl("GO", 14);
        zoomButton->setBackColor( .4,.4,.4,1 );
        zoomButton->setActiveColor( .8,0,0,1 );
        zoomButton->addEventHandler( new ZoomLayerHandler(layer) );
        grid->setControl( gridCol, gridRow, zoomButton );
    }
    gridCol++;

    // move buttons
    if ( layerIndex < numLayers-1 && isActive )
    {
        LabelControl* upButton = new LabelControl( "UP", 14 );
        upButton->setBackColor( .4,.4,.4,1 );
        upButton->setActiveColor( .8,0,0,1 );
        upButton->addEventHandler( new MoveLayerHandler( layer, layerIndex+1 ) );
        grid->setControl( gridCol, gridRow, upButton );
    }
    gridCol++;

    if ( layerIndex > 0 && isActive)
    {
        LabelControl* upButton = new LabelControl( "DOWN", 14 );
        upButton->setBackColor( .4,.4,.4,1 );
        upButton->setActiveColor( .8,0,0,1 );
        upButton->addEventHandler( new MoveLayerHandler( layer, layerIndex-1 ) );
        grid->setControl( gridCol, gridRow, upButton );
    }
    gridCol++;

    // add/remove button:
    LabelControl* addRemove = new LabelControl( isActive? "REMOVE" : "ADD", 14 );
    addRemove->setHorizAlign( Control::ALIGN_CENTER );
    addRemove->setBackColor( .4,.4,.4,1 );
    addRemove->setActiveColor( .8,0,0,1 );
    addRemove->addEventHandler( new RemoveLayerHandler(layer) );
//.........这里部分代码省略.........