学步园

其实后面的页面也是Wizard. 也就是说本身也可以独立成为一个WizardDialog, 那么如何将其嵌入到这个总开头页面之后呢?

Eclipse的实现方法看了很久都没有看懂, 最后决定自己尝试其他思路.

看代码:

IWizard wizard = new NewObjectWizard();
WizardDialog dialog = new WizardDialog(window.getShell(), wizard);
dialog.create();
dialog.open();

这是呼出第一个页面的Action的代码, 出来的页面就是一棵树的样子, 当然那棵树是在NewObjectWizard里面实现的.

public class NewObjectWizard extends Wizard implements IWizard ...{
    private IWizard currentWizard = null;

    private Composite pageContainer;

    /**//**
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.wizard.Wizard#addPages()
     */
    @Override
    public void addPages() ...{
        super.addPage(new NewObjectWizardPage());
    }

    /**//**
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.wizard.Wizard#performFinish()
     */
    @Override
    public boolean performFinish() ...{
        return false;
    }

    /**//**
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.wizard.Wizard#getWindowTitle()
     */
    @Override
    public String getWindowTitle() ...{
        return StingIDEMessages.NewWizardDialog_title;
    }

    /**//**
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.wizard.Wizard#needsPreviousAndNextButtons()
     */
    @Override
    public boolean needsPreviousAndNextButtons() ...{
        return true;
    }

    /**//**
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.wizard.Wizard#needsProgressMonitor()
     */
    @Override
    public boolean needsProgressMonitor() ...{
        return false;
    }

    /**//**
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.wizard.Wizard#getNextPage(org.eclipse.jface.wizard.IWizardPage)
     */
    @Override
    public IWizardPage getNextPage(IWizardPage page) ...{
        if (page.getName().equals(
                NewObjectWizardPage.NEW_OBJECT_WIZARD_PAGE_NAME)) ...{
            if (currentWizard == null) ...{
                return null;
            } else ...{
                return currentWizard.getStartingPage();
            }
        } else ...{
            return page.getNextPage();
        }
    }

    /**//**
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.wizard.Wizard#getPreviousPage(org.eclipse.jface.wizard.IWizardPage)
     */
    @Override
    public IWizardPage getPreviousPage(IWizardPage page) ...{
        if (page.getName().equals(
                NewObjectWizardPage.NEW_OBJECT_WIZARD_PAGE_NAME))
            return null;

        IWizardPage previous = page.getPreviousPage();
        if (previous == null) ...{
            return getPage(NewObjectWizardPage.NEW_OBJECT_WIZARD_PAGE_NAME);
        } else ...{
            return previous;
        }
    }

    /**//**
     * 设置当前得向导
     */
    void setCurrentWizard(IWizard wizard) ...{
        this.currentWizard = wizard;
        if (wizard != null) ...{
            wizard.addPages();
            wizard.createPageControls(pageContainer);
        }
        getContainer().updateButtons();
    }

    /**//**
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.wizard.Wizard#createPageControls(org.eclipse.swt.widgets.Composite)
     */
    @Override
    public void createPageControls(Composite pageContainer) ...{
        super.createPageControls(pageContainer);
        this.pageContainer = pageContainer;
    }

    /**//**
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.wizard.Wizard#canFinish()
     */
    @Override
    public boolean canFinish() ...{
        return currentWizard != null && currentWizard.canFinish();
    }

    /**//**
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.wizard.Wizard#dispose()
     */
    @Override
    public void dispose() ...{
        this.currentWizard = null;
        this.pageContainer = null;
        super.dispose();
    }

    /**//**
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.wizard.Wizard#getPage(java.lang.String)
     */
    @Override
    public IWizardPage getPage(String name) ...{
        if (name.equals(NewObjectWizardPage.NEW_OBJECT_WIZARD_PAGE_NAME)) ...{
            return super.getPage(name);
        } else if (this.currentWizard != null) ...{
            return currentWizard.getPage(name);
        } else
            return null;
    }