diff options
Diffstat (limited to 'src/uk/org/ury/frontend/FrontendFrame.java')
| -rw-r--r-- | src/uk/org/ury/frontend/FrontendFrame.java | 205 |
1 files changed, 184 insertions, 21 deletions
diff --git a/src/uk/org/ury/frontend/FrontendFrame.java b/src/uk/org/ury/frontend/FrontendFrame.java index 6324512..ef2a31a 100644 --- a/src/uk/org/ury/frontend/FrontendFrame.java +++ b/src/uk/org/ury/frontend/FrontendFrame.java @@ -4,26 +4,20 @@ package uk.org.ury.frontend; import java.awt.BorderLayout; -import java.awt.Color; import java.awt.Container; import java.awt.Dimension; -import java.awt.FlowLayout; -import javax.swing.BorderFactory; -import javax.swing.ImageIcon; import javax.swing.JFrame; -import javax.swing.JLabel; -import javax.swing.JPanel; /** - * A frame that hosts a FrontendPanel, used for serving frontend + * A frame that hosts a FrontendModulePanel, used for serving frontend * panels in a window (application mode). * * @author Matt Windsor * */ -public class FrontendFrame extends JFrame +public class FrontendFrame extends JFrame implements FrontendMaster { /** * @@ -31,31 +25,24 @@ public class FrontendFrame extends JFrame private static final long serialVersionUID = 740928181256928433L; - private FrontendPanel parent; + private FrontendBanner banner; + private FrontendModulePanel child; + private FrontendControlPanel cpanel; public - FrontendFrame (FrontendPanel parent) + FrontendFrame (FrontendModulePanel parent) { super (parent.getName ()); setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE); - this.parent = parent; + this.child = parent; Container cp = getContentPane (); // Banner - JPanel banner = new JPanel (); - JLabel bannerLabel = new JLabel ("<html><h1><font color=white>" - + parent.getName () + "</font></h1></html>"); - - bannerLabel.setBorder (BorderFactory.createEmptyBorder (5, 15, 5, 5)); - - banner.setLayout (new FlowLayout (FlowLayout.LEFT)); - banner.setBackground (new Color (0, 0, 0)); - banner.add (new JLabel (new ImageIcon (getClass ().getResource ("images/ury.png")))); - banner.add (bannerLabel); + banner = new FrontendBanner (parent.getName ()); // Composition @@ -67,4 +54,180 @@ public class FrontendFrame extends JFrame pack (); setVisible (true); } + + + /** + * Load a module into the frontend frame. + * + * Loading will fail with a fatal error if the class is not found, + * or is not an implementor of FrontendModule. + * + * @param moduleName The fully qualified class-name of the module, + * minus the leading "uk.org.ury." domain. + */ + + @Override + public void + loadModule (String moduleName) + { + Class<?> moduleClass = null; + + try + { + moduleClass = Class.forName ("uk.org.ury." + moduleName); + } + catch (ClassNotFoundException e) + { + FrontendError.reportFatal ("Could not load module: " + e.getMessage (), this); + } + + + if (FrontendModule.class.isAssignableFrom (moduleClass)) + { + FrontendModulePanel temp = child; + + try + { + child = ((FrontendModule) moduleClass.newInstance ()).runFrontend (this); + } + catch (InstantiationException e) + { + FrontendError.reportFatal ("Could not load module: " + e.getMessage (), this); + } + catch (IllegalAccessException e) + { + FrontendError.reportFatal ("Could not load module: " + e.getMessage (), this); + } + + remove (temp); + add (child); + + banner.setTitle (child.getName ()); + pack (); + } + } + + + /** + * Load a module into the frontend frame, additionally installing + * a control panel to communicate with the previous module. + * + * Loading will fail with a fatal error if the class is not found, + * or is not an implementor of FrontendModule. + * + * @param moduleName The fully qualified class-name of the module, + * minus the leading "uk.org.ury." domain. + * + * @param cPanelName The fully qualified class-name of the control + * panel to install, minus the leading + * "uk.org.ury." domain. + */ + + @Override + public void + loadModule (String moduleName, String cPanelName) + { + FrontendModulePanel newParent = child; + loadModule (moduleName); + FrontendModulePanel newChild = child; + + loadControlPanel (cPanelName, newParent, newChild); + } + + + /** + * Load and install a control panel class given the class name. + * + * @param cPanelName The fully qualified class-name of the control + * panel to load, minus the leading + * "uk.org.ury." domain. + * + * @param parent The parent panel in the relationship modelled + * by the control panel interface. + * + * @param child The child panel in the relationship modelled + * by the control panel interface. + */ + + private void + loadControlPanel (String cPanelName, FrontendModulePanel parent, + FrontendModulePanel child) + { + Class<?> cPanelClass = null; + + try + { + cPanelClass = Class.forName ("uk.org.ury." + cPanelName); + } + catch (ClassNotFoundException e) + { + FrontendError.reportFatal ("Could not load control panel: " + e.getMessage (), this); + } + + + if (FrontendControlPanel.class.isAssignableFrom (cPanelClass)) + { + FrontendControlPanel temp = cpanel; + + try + { + cpanel = ((FrontendControlPanel) cPanelClass.newInstance ()); + } + catch (InstantiationException e) + { + FrontendError.reportFatal ("Could not load module: " + e.getMessage (), this); + } + catch (IllegalAccessException e) + { + FrontendError.reportFatal ("Could not load module: " + e.getMessage (), this); + } + + if (temp != null) + remove (temp); + + cpanel.setPanels (parent, child); + cpanel.setMaster (this); + cpanel.setPreviousCPanel (temp); + + add (cpanel, BorderLayout.SOUTH); + pack (); + } + } + + + /** + * Restore an existing module and control panel into the frontend + * frame. + * + * @param mpanel The module panel to restore. + * + * @param cpanel The control panel to restore, if any. A null + * value signifies a lack of control panel. + * + * @throws IllegalArgumentException if the mpanel is null. + */ + + @Override + public void + restoreModule (FrontendModulePanel mpanel, + FrontendControlPanel cpanel) + { + if (mpanel == null) + throw new IllegalArgumentException ("mpanel is null."); + + remove (child); + remove (this.cpanel); + + child = mpanel; + add (child); + banner.setTitle (child.getName ()); + + if (cpanel != null) + add (cpanel, BorderLayout.SOUTH); + + this.cpanel = cpanel; + + pack (); + repaint (); + } } |