COP4226 Assignment 4

Due Tuesday, 3/27 at 11:59 pm.

Make sure your application is object oriented!

If you have written a helper method that has many references to the members of a class, then perhaps there should be a method for this operation in your class. I will be looking for object oriented design when I grade the assignment.

Create a Multi-SDI Application

• Create a new project. Add my SdiTemplate.dll into the application directory and add a reference to it. Also add SdiTemplate.pdb into the application. The application directory is the location of your main form. ZIP of SdiTemplate.
• Create two empty classes. Extend each one from SdiTemplate.SdiView. These will be two different views of the same data. One view will display text drawn on the screen (drawing view), the other view will show the corresonding data in a ListView (list view).
  • The SdiView class is a user control, so you will be able to add controls to it in the designer.
  • You should create a constructor that has two parameters, as is explained in the SdiTemplate documentation.
  • You should create a default constructor. This will only be used by the designer. If it does not exist, then you will get an error message from the designer when you try to open the view in the designer.
• Create a document that extends SdiTemplate.SdiDoc.
• Extend the main form class from SdiTemplate.SdiMainForm.
• Do not change my files. All changes should be in your extended classes.
• If you want to, you may create your own class that extends SdiView and use it as the base class for the views in this application. This is a useful technique. It allows you to add virtual functions to your base class. These virtual functions can then have different implementations in your extended views. It also allows you to add features to your base class that are implemented identically in both extended views.

MainForm

• Add a main menu and a toolbar.
  • You may add the standard toolbar icons to the toolbar.
  • Hide the Edit menu.
  • Hide the Print and Print Preview options in the File menu.
• Dock a scrollable panel to the top of the client area.
  • Add a drawing view this panel. Use the SetView method to do this.
• Add a horizontal splitter that is docked to the panel.
• Add a status bar.
  • Be sure that the status bar is in front of the splitter and first panel.
  • Update the status bar as the user clicks in the client area.
    • When the user clicks in the top panel or any of its controls, display a message in the status bar that the top scrolling panel is active.
    • When the user clicks in the bottom panel (described next) or any of its controls, display a message in the status bar that the bottom scrolling is active.
    • The easiest way to detect these mouse clicks is to catch the WM_NOTIFYPARENT message (hex 0x0210) in the WndProc and test if the mouse coordinates in the LParam are in either of the panels.

      WndProc is not available from the properties window. To create the method, type override followed by a space, in your main program. You will see a list of overrides that are available. Type WndProc and you will see it in the list.

      The WndProc is explained on pages 392-393 of the text. In the example from the book, rename WM_NCHITTEST to WM_NOTIFY and give it a value of 0x210. In the switch statement, access the LParam property from the message. This property will contain the coordinates of the mouse click. Add the following methods ot your main form to isolate the low word (X coordinate) and high word (Y coordinate) from the LParam property of the Message. There is a method that is part of the LParam that will change it to an Int32.

      	private static int HiWord(int number)
      	{
      		if ((number & 0x80000000) == 0x80000000)
      			return (number >> 16);
      		else
      			return (number >> 16) & 0xffff ;
      	}
      
      	private static int LoWord(int number)
      	{
      		return number & 0xffff;
      	}
      
      

• Dock another scrollable panel that will fill the remaining client area.
  • Be sure that this panel is in front of the status bar, or the scrollbars will be partially hidden by the status bar.
  • Add a list view to this panel. Use the SetView method to do this.
• Add a main menu.
  • File Menu
    • Clear - Delete the contents of document.
      • Use the Modified property in the documant to warn the user if data is to be lost. Give the user three options.
        • Save the data.
        • Do not save the data.
        • Return to the application, without erasing the contents.
    • New - Open a new, top level window. This option is the same as in Hw3.
    • Open - Open a file in the current window. This option is the same as in Hw3.
      • Use the Modified property in the documant to warn the user if data is to be lost. Give the user three options.
        • Save the data.
        • Do not save the data.
        • Return to the application, without erasing the contents.
      • In the open file dialog, the file type list should include Hw4 File (*.hw4) and All Files (*.*).
      • Use an IFormatter to deserialize the data from a file into the document. Do not deserialize the document itself, deserialize the data that is in the document.
      • Only open files that have been saved previously by this application.
    • Save - Save the data in a file.
      • Use an IFormatter to serialize the data in the document to a file. Do not serialize the document itself, serialize the data that is in the document.
      • If the data has already been saved, then save it using the current file name.
      • If the data was opened from a file, then save it using the current file name.
      • If the data has not been saved before or did not come from a file, then open a save file dialog.
        • In the save file dialog, the file type list should include Hw4 File (*.hw4) and All Files (*.*).
        • The file name of the current file should appear in the file name box of the dialog.
    • Close - Close the current, top level window. This option is the same as in Hw3.
      • Use the Modified property in the documant to warn the user if data is to be lost. Give the user three options.
        • Save the data.
        • Do not save the data.
        • Return to the application, without erasing the contents.
      • If this is the last open window, then the application should close.
    • Exit - Close all the open forms. This option is the same as in Hw3.
      • Use the Modified property in the documant to warn the user if data will be lost in each form before it is closed. Give the user three options.
        • Save the data.
        • Do not save the data.
        • Return to the application, without erasing the contents.
      • Iterating through the open forms and closing them can cause exceptions. I suggest that you use the array notation to access the open forms and close them in reverse order.
  • Edit
    • Hide the Copy and Cut items.
    • Paste
      • Paste text from the clipboard. Only enable this option if there is Text data in the clipboard. Use the DataFormats.GetFormat method.
      • When data is pasted, split the data into words. Add each word as a new data element in the document.
        • Choose a default scale and rotation for each word.
        • Give each word that is added to the document a unique location.
  • View
    • Toolbar - When the item is clicked, toggle the visibility of the toolbar. If the toolbar is visible, place a check mark next to the item. This option is the same as in Hw3.
    • Status Bar - When the item is clicked, toggle the visibility of the status bar. If the status bar is visible, place a check mark next to the item. This option is the same as in Hw3.
    • Drawing: Set the view for the active panel to a drawing view. If the active panel is currently showing a drawing view, then this option should be checked and disabled.
    • List: Set the view for the active panel to a list view. If the active panel is currently showing a list view, then this option should be checked and disabled.
    • Split View: When this option is checked, then the layout will be as described above: two panels with a splitter between them. When this option is unchecked, hide the splitter and the bottom panel, and make the top panel fill the client area.
  • Window Menu - This will contain a list of the open, top level forms. The item for the current form should have a check next to it. This option is the same as in Hw3.

Add a data class to your project

• Make the class serializable.
• Add variables to the class to store a the location, text, scale and rotation.
• Add properties to access these variables.
• Add a method that can be called with a graphics object to draw the text. Draw the text with any font and brush that you choose. Draw the text at the point specified by location property, scale the text by the amount of the scale property (both x and y are scaled the same amount), rotate the text by the amount of the rotation property.
• Add any other variables that you need.
• Add any other methods that you need.

In the docmuent class

• Extend your document class from SdiTemplate.SdiDoc.
• Create an generic List for instances of your new data class.
• Add other members as needed. Any variable that needs to be saved, must be in the document.
• Add helper methods as needed, including accessors and mutators for accessing data in the document.
• Override the DeleteContents method. This method in the base class already calls UpdateAllViews.
• Use the Modified property to kepp track of when the document needs to be saved.

In the Drawing View

• Set the total size of the view to 700 pixels by 600 pixels.
• When the left mouse button is clicked, check if it is within the bounding rectangle for any text in the view.
  • If it is, then open a dialog box that contains text boxes for the text, location (use two boxes for the location: one for X and one for Y), scale and rotation of the data object that was hit.
  • Fill the text boxes of the dialog with the current values for the data object from the document.
  • Allow the user to change any of the properties.
  • Add OK and Cancel buttons to the dialog. If OK is clicked, then update the document with the new data and notify all the views that the document has changed.
• In the paint method, call the draw method for each object that is in the list in the document.

In the List View

• Set the total size of the view to 600 pixels by 350 pixels.
• Add a ListView.
  • Add columns to the list view for the text, location, scale and rotation.
  • Be sure that the View property is set to Details.
• When Update is called, clear all the items from the list and add all the current elements from the document to the list. You will need to use the types ListViewItem and ListViewItem.ListViewSubItem to add items to the ListView.

Add Drag and Drop

• Add the ability to drag text from another application into this application.
• When text is dragged into either view, split the data into words. Add each word as a new data element in the document.
  • Choose a default scale and rotation for each word.
  • Give each word that is added to the document a unique location.