TSizeConstraints

type TSizeConstraints = class(TPersistent)

protected

  procedure Change; virtual;

Method for achieving a Change in the constraints

  procedure AssignTo(); override;

AssignTo - copies constraints to destination if it is of the same type and has different values, else calls inherited AssignTo

  procedure SetMaxHeight(); virtual;

SetMaxHeight - specifies a maximum value for height

  procedure SetMaxWidth(); virtual;

SetMaxWidth - specifies a maximum value for width

  procedure SetMinHeight(); virtual;

SetMinHeight - specifies a minimum value for height

  procedure SetMinWidth(); virtual;

SetMinWidth - specifies a minimum value for width

public

  constructor Create(); virtual;

Create - constructor for TSizeConstraints: calls inherited Create and sets some default (zero) constraints

  procedure UpdateInterfaceConstraints; virtual;

UpdateInterfaceConstraints - updates the constraints on size for the Interface

  procedure SetInterfaceConstraints(); virtual;

SetInterfaceConstraints - specifies the constraints for the interface

  function EffectiveMinWidth; virtual;

EffectiveMinWidth - returns the effective value for minimum width, given the local and interface constraints

  function EffectiveMinHeight; virtual;

EffectiveMinHeight - returns the effective value for minimum height, given the local and interface constraints

  function EffectiveMaxWidth; virtual;

EffectiveMaxWidth - returns the effective value for maximum width, given the local and interface constraints

  function EffectiveMaxHeight; virtual;

EffectiveMaxHeight - returns the effective value for maximum height, given the local and interface constraints

  function MinMaxWidth();

MinMaxWidth the difference between Minimum and Maximum width

  function MinMaxHeight();

MinMaxHeight the difference between Minimum and Maximum height

  property MaxInterfaceHeight: Integer; [r]

MaxInterfaceHeight - the maximum height allowed by the interace

  property MaxInterfaceWidth: Integer; [r]

MaxInterfaceWidth - the maximum width allowed by the interace

  property MinInterfaceHeight: Integer; [r]

MinInterfaceHeight - the minimum height allowed by the interface

  property MinInterfaceWidth: Integer; [r]

MinInterfaceWidth - the minimum width allowed by the interface

  property Control: TControl; [r]

The Control to which these constraints apply

  property Options: TSizeConstraintsOptions; [rw]

Options for determining constraints

published

  property OnChange: TNotifyEvent; [rw]

OnChange - event handler for a change in contraints

  property MaxHeight: TConstraintSize; [rw]

MaxHeight - the maximum height

  property MaxWidth: TConstraintSize; [rw]

MaxWidth - the maximum width

  property MinHeight: TConstraintSize; [rw]

MinHeight - the minimum height

  property MinWidth: TConstraintSize; [rw]

MinWidth - the minimum width

end;

TSizeConstraints

Holds maximum and minimum values that can be used in sizing objects.

TPersistent

TObject