COP4226, Assignment 2

Due Monday, October 23, at 11:59 PM.

Zip your entire project and upload it on the web. Exclude all of the Debug and Release directories.
Submitting Homework Online.

This is an extension of HW1. Fix any errors that you had in HW1.

• Add File and View menus to the main menu.
  • Under the File drop down, add Exit.
  • Under the View drop down, add Display, Close Displays, Colors, and Hatching.
    • Colors will have a submenu of Background and Foreground.
• Add a notify icon.
  • Add a context menu with the options of Tile, Cascade, Close Displays, and Exit. Place a separator between Close Displays and Exit.
• Implement context sensitive help for all controls on the main form: input, output, buttons. Enable context sensitive help so that the question mark appears in the title bar. In order for help to work, the control must be enabled. This may cause you to reimplement the output box.
• In addition to validating input when the operation button is clicked, do error validation when the menu item View Display is clicked and when the Display button is clicked.
  • Do not open the dialog if there is an error.
  • Validate that all the fields are correct.
• When the delegate for the display dialog is fired (explained below), initialize the main form with the data and settings from the display dialog.
  • Display the ID from the display dialog in the title bar of the main form, along with the name of the application.
  • Update the radio buttons, drop down list, input boxes and values according to the data from the dialog.
  • Change the background and foreground colors of the main form to the foreground and background colors of the dialog that fired the delegate.
  • Save the current hatching from the dialog and use it when creating new display dialogs.

Display Dialog

• Create a new form that will display the current values and settings from the main form.
  • Use the current foreground and background colors of the main form as the foreground and background colors of the dialog.
  • Use the current hatching to draw the background of the dialog.
• Create properties that can be used to access the data in the dialog.
• Display the Category, Operation, and Input.
  • For the given operation, display the correct number of input and correct labels, as were displayed in the main form.
• Add a field for an ID.
  • When the form opens, this field should have the focus.
  • When the user clicks the Apply button, validate that the ID is not empty and is not all blanks.
  • When the focus leaves the ID field, add it to the title of the dialog. If the ID field changes, the new ID should replace the old ID in the title.
• Add an Apply button to the form. When the apply button is clicked, fire a delegate.
• Add a Cancel button to the form.
• This form may not access any properties or methods of the main form. It should know nothing about the main form.
• Implement context sensitive help for this dialog.
  • Enable context sensitive help so that the question mark appears in the title bar.
  • The help string for the input fields should include the label for the field and the operation that is being performed.
• Do not show this form's icon in the taskbar.
• These forms should always display above the main form in the Z-order
• I will refer to these dialogs as display dialogs.

Main Form Main Menu - New Options

• All the menu options from Hw1 must still function.
• File Exit: close the application.
• View Display: open a display dialog modelessly. This should only be enabled when the input box(es) for a calculation can be seen.
• View Close Displays: close all the display dialogs that are open.
• View Colors Background: open a color dialog and change the background color of the main form. New display dialogs will use the current background color of the main form. Open the dialog with the current background color selected.
• View Colors Foreground: open a color dialog and change the foreground color of the main form. New display dialogs will use the current foreground color of the main form. Open the dialog with the current background color selected.
• View Hatching: Open a modal dialog that displays all the hatching styles in a drop down list. As the selected index changes, draw the selected hatch in a panel in the dialog.
  • When the dialog closes, save the hatching style and use it to draw the background of new display dialogs. Do not change the hatching of dialogs that are already open.
  • When the hatching dialog is reopened, be sure that the current hatching is preselected in the drop down list.
  • In the panel,
    • Draw the hatching with the fore and back colors from the main form (when the dialog was opened).
    • Draw a centered rectangle that contains the name of the hatching. Do not use a control for this, draw the rectangle and draw the text that is in the rectangle. Include padding around the text so that the text is easily read.
    • Create and use a font to draw the text. Do not use a font that is managed by .NET.
    • Draw the border of the rectangle using a compound pen. Use beveled corners for the pen.

Notify Context Menu

• Tile: tile the open display dialogs on the desktop. Resize each display dialog to the minimum size so that all the controls are visible. Starting in the upper left corner place each dialog next to each other. When the first row is full, start a new row directly below the first row. Continue in this way until all the dialogs are arranged. If there are too many to fit on one screen, then start over again at the upper left corner.
  • Be sure that the tiling does not cover the title bar of the main form.
  • Be sure that dialogs do not appear under the Windows taskbar.
  • To find the height of the title bar, you can use a Win32 function. Be sure to use System.Runtime.InteropServices.

    [DllImport("User32.dll")]
    private extern static int GetSystemMetrics(int nIndex);
    int heightTitle = GetSystemMetrics(4/*SM_CYCAPTION*/);
    
    

• Cascade: cascade all the open display dialogs starting from the upper left corner of the desktop. Resize each display dialog to the minimum size so that all the controls are visible. Overlap the dialogs so that the next dialog is located directly below the the title bar of the previous form. Offset the next dialog to the right of the previous dialog by the height of the title bar. If there are too many to fit on one screen, then start over again at the upper left corner.
  • Be sure that the cascade does not cover the title bar of the main form.
  • Be sure that dialogs do not appear under the Windows taskbar.
• Close Displays: this will perform the same action as the menu item View Close Displays.
• Exit: this will perform the same action as the menu File Exit.