cbsaveloadtemplate.java

JAVA开源LDAP浏览器jxplorer的源码!

    {
        if (myContainer == null)
        {
            log.warning("Unexpected error in CBSaveLoadTemplate.save() - no parent found");
            return;
        }    // should never happen
        Component[] components = myContainer.getComponents();
        for (int i = 0; i < components.length; i++)
        {
            Component c = components[i];

            saveComponent(c, i, templateName);

        }
    }

    /**
     * This method handles the saving of a particular component.  If
     * the class needs to be extended, extra handling for particular
     * components may need to be added, in which case this method
     * can be extended.
     *
     * @param c            the component to save
     * @param componentNo  the index of the component
     * @param templateName the name of the template being saved to.
     */

    protected void saveComponent(Component c, int componentNo, String templateName)
    {
        if ((c instanceof JPanel) && (c != this))  // if it's a container (and not this component), recurse and save those...
        {
            saveContainerInfo((Container) c, templateName + "." + componentNo);
        }
        else if ((c instanceof JScrollPane) && (c != this))
        {
            saveContainerInfo((Container) c, templateName + "." + componentNo);
        }
        else if ((c instanceof JViewport) && (c != this))
        {
            saveContainerInfo((Container) c, templateName + "." + componentNo);
        }
        else
        {
            String saveText = getComponentText(c);
            if (saveText != null)
                templates.setProperty(templateName + "." + componentNo, saveText);
        }
    }


    /**
     * this ftn returns the text to save for a given component, and
     * is the sister ftn to 'loadComponentText'.  New components
     * (including awt components) can be added here, by
     * extracting their value as text, and making sure that loadComponentText
     * correctly translates that value when loading.
     *
     * @param c the component to retrieve a text value for.
     * @return the text value of the component.
     */
    public String getComponentText(Component c)
    {
        if (c == null) return null;  // don't get null components

        if (illegalComponents.contains(c)) return null;  // don't get forbidden components.

        try
        {
            if (c instanceof JPasswordField) // don't save passwords
                return "";
            else if (c instanceof JTextField)
                return ((JTextField) c).getText();
            else if (c instanceof JTextArea)
                return ((JTextArea) c).getText();
            else if (c instanceof TextField)
                return ((TextField) c).getText();
            else if (c instanceof JToggleButton)
                return String.valueOf(((JToggleButton) c).isSelected());
            else if (c instanceof CBJComboBox)
                return ((CBJComboBox) c).getSelectedItem().toString();
            else
                return null;  // unknown component
        }
        catch (Exception e)
        {
            return null;
        } // possibility of uninitialised objects above...may cause problems.
    }


    /**
     * Takes a template name, and attempts to read all the (string)
     * values belonging to that template, and toss them in the
     * appropriate numbered component.
     */

    public void load()
    {
        String templateName = getCurrentTemplateName();

        if (templateName.length() == 0)
        {
            CBUtility.error(this, CBIntText.get("No template selected!"), null);
            return;
        }
        loadTemplateName(templateName);
    }

    public void loadTemplateName(String templateName)
    {
        Container parent = getParent();

        loadContainerInfo(parent, templateName);
    }

    public void loadContainerInfo(Container myContainer, String templateName)
    {
        if (myContainer == null)
        {
            log.warning("Unexpected error in CBSaveLoadTemplate.load() - no parent found");
            return;
        }    // should never happen
        Component[] components = myContainer.getComponents();

        for (int i = 0; i < components.length; i++)
        {
            Component c = components[i];
            loadComponent(c, i, templateName);
        }
    }


    /**
     * This method handles the loading of a particular component.  If
     * the class needs to be extended, extra handling for particular
     * components may need to be added, in which case this method
     * can be extended.
     *
     * @param c            the component to load
     * @param componentNo  the index of the component
     * @param templateName the name of the template being loaded from.
     */

    protected void loadComponent(Component c, int componentNo, String templateName)
    {
        if (c instanceof JPanel)   // recurse into container details.
        {
            loadContainerInfo((Container) c, templateName + "." + componentNo);
        }
        else if ((c instanceof JScrollPane))
        {
            loadContainerInfo((Container) c, templateName + "." + componentNo);
        }
        else if ((c instanceof JViewport))
        {
            loadContainerInfo((Container) c, templateName + "." + componentNo);
        }
        else
        {
            String text = (String) templates.get(templateName + "." + componentNo);  // often there won't be a value...
            if (text != null)                               // ... if there is, load the data up!
            {
                loadComponentText(c, text);
            }
        }
    }

    public void loadComponentText(Component c, String text)
    {
        if (illegalComponents.contains(c)) return;  // don't load forbidden components.

        if (c instanceof JTextField)
            ((JTextField) c).setText(text);
        else if (c instanceof JTextArea)
            ((JTextArea) c).setText(text);
        else if (c instanceof TextField)
            ((TextField) c).setText(text);
        else if (c instanceof JToggleButton)
            ((JToggleButton) c).setSelected("true".equalsIgnoreCase(text));
        else if (c instanceof CBJComboBox)
        {
            ((CBJComboBox) c).setSelectedItem(text);
        }
    }

    public void delete()
    {
        String templateName = getCurrentTemplateName();
        if (templateName.length() == 0)
        {
            CBUtility.error(this, "No template selected!", null);
            return;
        }

        Container parent = getParent();
        if (parent == null)
        {
            log.warning("Unexpected error in CBSaveLoadTemplate.delete() - no parent found");
            return;
        }    // should never happen
        deleteComponentInfo(parent, templateName);

        for (int i = 0; i < numTemplates; i++)
        {
            if (templateName.equals((String) templates.get(TEMPLATENAME + i)))
            {
                templates.remove(TEMPLATENAME + i);
                numTemplates--;
                templates.put(NUMTEMPLATES, Integer.toString(numTemplates));
                loadops.removeItem(templateName);

                // and shuffle down all the values from above!
                // (you know, there's got to be a neater way of doing this...)
                for (int j = i + 1; j <= numTemplates; j++)
                {
                    templateName = (String) templates.get(TEMPLATENAME + j);
                    templates.put(TEMPLATENAME + (j - 1), templateName);
                }
                templates.remove(TEMPLATENAME + numTemplates);

                break;
            }
        }
        CBUtility.writePropertyFile(configFile, templates, null);
    }

    public void deleteComponentInfo(Container myContainer, String templateName)
    {
        Component[] components = myContainer.getComponents();


        // Brute force delete - most of these don't exist, but attempting deletion does no harm...
        for (int i = 0; i < components.length; i++)
        {
            if (components[i] instanceof JPanel)
                deleteComponentInfo((Container) components[i], templateName + "." + i);
            else if ((components[i] instanceof JScrollPane))
                deleteComponentInfo((Container) components[i], templateName + "." + i);
            else if ((components[i] instanceof JViewport))
                deleteComponentInfo((Container) components[i], templateName + "." + i);
            else
                deleteComponentInfo(templateName + "." + i);//templates.remove(templateName + "." + i);
        }

        try
        {	//TE: if the default template is being deleted, also delete the 'defaul' entry in the property file.
            if (templates.getProperty("default") != null && templates.getProperty("default").equalsIgnoreCase(templateName))
                templates.remove("default");
        }
        catch (Exception e)
        {
            log.log(Level.WARNING, "No default template. ", e);
        }
    }


    /**
     * Deletes a template that is saved in the property file.  Can be extended
     * to account for individual component handling e.g. combo box visibility.
     *
     * @param templateName the name of the template that is to be deleted from the property file.
     */

    public void deleteComponentInfo(String templateName)
    {
        templates.remove(templateName);
    }

    public void makeDefault()
    {
        templates.setProperty(DEFAULT, getCurrentTemplateName());
        CBUtility.writePropertyFile(configFile, templates, "");
    }

    public void addIllegalComponent(Component c)
    {
        illegalComponents.add(c);
    }

}