[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] Reference for unit 'EditBtn' (#lcl)

TCalcEdit

[Properties (by Name)] [Methods (by Name)] [Events (by Name)]

TCalcEdit - an EditBox to hold a numeric value, with an attached SpeedButton that will summon a calculator dialog

Declaration

Source position: editbtn.pas line 704

type TCalcEdit = class(TCustomEditButton)

protected

  FCalcDialog: TForm;

  

FCalcDialog - local variable holding the Calculator Dialog for use with this class

  function GetDefaultGlyph; override;

  

GetDefaultGlyph - find the default glyph for the SpeedButton

  function GetDefaultGlyphName; override;

  

GetDefaultGlyphName - find the name for the default glyph for the SpeedButton

  procedure DoButtonClick(); override;

  

DoButtonClick - software emulation of the OnButtonClick event

  procedure RunDialog; virtual;

  

RunDialog - perform the function of the dialog

public

  constructor Create(); override;

  

Create - constructor for TCustomEditButton: calls inherited Create then sets some defaults and initialises some variables

published

  property CalculatorLayout: TCalculatorLayout; [rw]

  

CalculatorLayout - normal or simple

  property AsFloat: Double; [rw]

  

AsFloat - holds the result of the calculation as a floating-point (double precision) number

  property AsInteger: Integer; [rw]

  

AsInteger - holds the result of the calculation as an Integer

  property OnAcceptValue: TAcceptValueEvent; [rw]

  

OnAcceptValue - event handler for accepting the result of the calculation

  property DialogTitle: ; [rws]

  

DialogTitle - the caption to be used for the dialog

  property ButtonWidth;

  

ButtonWidth - the width of the SpeedButton attached to the Edit Box

  property DirectInput;

  

DirectInput - if True, direct data input to the Edit Box is permitted

  property ButtonOnlyWhenFocused;

  

ButtonOnlyWhenFocused - if True, the SpeedButton only appears when focus is given to the EditButton control

  property NumGlyphs;

  

NumGlyphs - the number of available glyphs

  property Flat;

  

Flat - if True, SpeedButton appears flat rather than three-dimensional

  property Align;

  

Specifies the placement of the control inside its Parent.

  property Anchors;

  

The set of anchor definitions for this control.

  property BidiMode;

  property BorderSpacing;

  

Determines the inner and outer border spacing for this control.

  property BorderStyle;

  property AutoSize;

  

Allows to automatically adjust the size of the control, according to its content.

  property AutoSelect;

  

If True, the edit control will select all its text when it receives focus or when the Enter key is pressed.

  property Color;

  

The background color of the control.

  property DragCursor;

  

The cursor shape shown while the control is dragged.

  property DragMode;

  

Allows the user to drag the control.

  property Enabled;

  

Determines whether the control reacts on mouse or keyboard input.

  property Font;

  

The font to be used for text display in this control.

  property MaxLength;

  

The maximum length of the text; zero for unlimited.

  property ParentBidiMode;

  property ParentColor;

  

If true, the Color of the control will be the same as the one from the Parent. Default is true.

  property ParentFont;

  

If true, the Font of the control will be the same as the one from the Parent. Default is true.

  property ParentShowHint;

  

If true, the value of ShowHint for the control will be the same as the one from the Parent. Default is true.

  property PopupMenu;

  

A context-sensitive menu that pops up when the right mouse button is clicked over this control

  property ReadOnly;

  

Prevents the user from changing the text.

  property ShowHint;

  

Enables the Hint display.

  property TabOrder;

  

Determines the sequence of controls, reachable when the user presses the Tab key.

  property TabStop;

  

Allows the user to navigate to this control, by pressing the Tab key.

  property Visible;

  

Allows to show or hide the control, and all of its children.

  property OnChange;

  

Event handler for any change in text.

  property OnClick;

  

Notification handler for mouse clicks.

  property OnDblClick;

  

Event Handler for double mouse clicks.

  property OnDragDrop;

  

This handler determines the action on an drop onto this control, in a drag-drop operation.

  property OnDragOver;

  

Event handler for a control being dragged over this control.

  property OnEditingDone;

  

Event handler when editing is done.

  property OnEndDrag;

  

Notification handler for the end of a dragging operation.

  property OnEnter;

  

Handler for control receiving the focus.

  property OnExit;

  

Handler for control loosing the focus. This is a good place for checking the finished user input.

  property OnKeyDown;

  

Handler for keyboard key pressed.

  property OnKeyPress;

  

Handler for a character entered by the user.

  property OnKeyUp;

  

Handler for keyboard key released.

  property OnMouseDown;

  

Event handler for mouse button going down.

  property OnMouseMove;

  

Event handler for mouse movement within the control.

  property OnMouseUp;

  

Event handler for mouse button going up.

  property OnStartDrag;

  

Event handler for the start of a dragging operation.

  property OnUTF8KeyPress;

  

Handler for a character entered by the user.

end;

Inheritance

TCalcEdit

  

TCalcEdit - an EditBox to hold a numeric value, with an attached SpeedButton that will summon a calculator dialog

|

TCustomEditButton

  

TCustomEditButton - base class for TEditButton, an Edit Box with attached Speed Button

|

TCustomMaskEdit

  

TCustomMaskEdit - base class for TMaskEdit, an Edit box with characters masked out to avoid unauthorised reading

|

TCustomEdit

  

The base class for controls presenting editable text.

|

TWinControl

  

The base class for controls which can contain other (child) controls.

|

TControl

  

The base class for visible controls.

|

TLCLComponent

  

The base class for LCL components associated with widgets.

|

TComponent

?

TObject