90 ;;Quote: a user interface should not include multiple modes of operation

90 ;;Quote: text editors with modes are monsters to novices trying to learn them

90 ;;Quote: in editors with modes, the same letter can have multiple meanings depending on the current mode

90 ;;Quote: in many programs, the only commands are those defined by the program; e.g., can not use an editor to rename files in a directory listing

94 ;;Quote: overlapping windows displays multiple tasks at once; a button switches between tasks without losing information; reduced screen space

94 ;;Quote: windows are like modes but they can not be accidentally entered and they are easy to change at any time

94 ;;Quote: an integrated environment combines operating system with application; every capability of the system is always available

100 ;;Quote: Smalltalk can translate and relink a single change in a few seconds; makes simple modifications easy

100 ;;Quote: Smalltalk scales well; the second half is as easy to develop as the first half

100 ;;Quote: a Smalltalk window is a framed rectangle with a title tab; program output restricted to window

100 ;;Quote: every Smalltalk window has a window menu for resizing, moving, closing, printing, and revealing windows

100 ;;Quote: each Smalltalk window is tiled with one or more panes with their own menus

102 ;;Quote: in Smalltalk, interact with one active pane of one active window at a time; includes scroll bar and active menus

102 ;;Quote: if mouse used with Smalltalk, then menus are hidden until a button is pressed; command executed on releasing the button

102 ;;Quote: with Smalltalk instead of typing the name of a procedure, you point to it in a list or activate its window

104 ;;Quote: remove modes from Smalltalk editing by selecting before command, and text replaces selected characters

104 ;;Quote: instead of confirming a command, Smalltalk commands can be undone

104 ;;Quote: if a Smalltalk command takes one parameter, select the item and invoke the command; allows you to change selection or command

104 ;;Quote: if a Smalltalk command takes multiple parameters, edit a form; command not invoked until you request it; no mode

104 ;;Quote: in Smalltalk, a text key never issues a command, instead it replaces the current selection and selects the following gap

104 ;;Quote: Smalltalk's undo reverses effects of typing and backspacing up to the previous selection

106 ;;Quote: Smalltalk includes shift lock, bold shift, and underline shift; like a mode but only changes appearance of characters

108 ;;Quote: select text in Smalltalk by holding mouse button down while drawing through the text

108 ;;Quote: when starting a selection with a mouse, Smalltalk inserts a vertical bar in the nearest intercharacter gap

108 ;;Quote: immediately releasing the mouse button selects a gap; used for insertion

108 ;;Quote: clicking the mouse button twice on a word, selects the word in Smalltalk

108 ;;Quote: selecting a word with draw-through takes 2-6 seconds while double clicking takes 1-5 seconds

110 ;;Quote: to send a message in Smalltalk either make a menu selection or execute a statement

112 ;;Quote: to execute a Smalltalk statement, type it into a pane, select it, and execute the 'do it' command

114 ;;Quote: Smalltalk users keep a work-space window for commands; can reissue an old command with new parameters, like a form

114 ;;Quote: move text in Smalltalk by selecting the text, issuing a 'cut', selecting the destination, and issuing a 'paste'

116 ;;Quote: with Smalltalk can always inspect an object; displays a two pane window showing its variables and its value

120 ;;Quote: explore Smalltalk methods and classes with a browser using the selection button

124 ;;Quote: can always revise a Smalltalk method or class definition with the editor

128 ;;Quote: Smalltalk uses incremental compilation of methods; takes just a few seconds

128 ;;Quote: Smalltalk compiler reports syntax errors by inserting a message at the error location; correct by overtyping; immediately reissue 'compile'

128 ;;Quote: 'cancel' in Smalltalk reverts to the last successfully compiled version of a method; 'undo' recovers your edits

132 ;;Quote: once a Smalltalk method is successfully compiled, its selector is automatically listed in the method pane and its pattern is boldfaced

132 ;;Quote: to create a Smalltalk method, select a method category and fill in the template in the editing plane

132 ;;Quote: to create a Smalltalk class, select a class category; fill in a template in the editing pane and compile

134 ;;Quote: invoke a Smalltalk breakpoint by sending 'notify' to self with a descriptive message; creates a notify window with the execution stack

138 ;;Quote: while at a Smalltalk breakpoint (notify window), can display, edit and recompile methods

138 ;;Quote: while debugging, can click on instance variables of a message's receiver to see their values

138 ;;Quote: to single-step in Smalltalk; select one statement at a time and issue 'do it'

140 ;;Quote: after recompiling a method within a Smalltalk breakpoint, can restart execution of any method on the stack

140 ;;Quote: at a breakpoint, the entire stack is saved in the notify window; can do anything else before restarting; no modes

142 ;;Quote: most common Smalltalk error is 'message not understood'

142 ;;Quote: since variables do not have a static type; the Smalltalk compiler can not detect message errors at compilation

142 ;;Quote: with static typing can detect procedure-call errors early but lose generic procedures and requires type declarations

142 ;;Quote: Smalltalk is safe since type mismatches ('message not understood') are reported with a notify window

144 ;;Quote: besides multiple windows, Smalltalk defines desk tops which can be swapped via project windows

144 ;;Quote: an complete snapshot of the Smalltalk environment can be taken at any time and later resumed

147 ;;Quote: Smalltalk is reactive; the user tells it what to do instead of the other way around

147 ;;Quote: the state of Smalltalk tasks is preserved in instantly accessible windows on a desk top

147 ;;Quote: modes rarely occur in Smalltalk; gives user maximum freedom of choice