[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] |
[Properties (by Name)] [Methods (by Name)] [Events (by Name)]
TColorButton - a SpeedButton designed to be used with the Color dialog, allowing a colour to be selected for text or graphics
Source position: dialogs.pp line 268
type TColorButton = class(TCustomSpeedButton) end; |
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protected |
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class procedure WSRegisterClass; override; |
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Registers this component class with the current WidgetSet. |
function DrawGlyph(); override; |
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DrawGlyph - draw the glyph on the button face |
function GetDisabledPattern; virtual; |
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GetDisabledPattern - returns a BitMap with a disabled pattern |
function GetGlyphSize(); override; |
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GetGlyphSize - returns the value of the size for glyphs on the button |
class function GetControlClassDefaultSize; override; |
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Returns the default size for this class of controls (when added to a form). |
procedure ShowColorDialog; virtual; |
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ShowColorDialog - method for displaying the Colour dialog |
public |
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constructor Create(); override; |
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Create - constructor for TColorButton; calls inherited Create , sets initial bounds, size and pattern |
destructor Destroy; override; |
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Destroy - destructor for TCustomSpeedButton: frees Glyph then calls inherited Destroy |
procedure Click; override; |
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Invokes the OnClick and ActionLink.Execute handlers. |
published |
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property Action: TBasicAction; |
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The Action associated with this control. |
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Specifies the placement of the control inside its Parent. |
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The set of anchor definitions for this control. |
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property AllowAllUp: Boolean; |
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Boolean flag to determine whether all buttons are allowed to be Up (default false) |
property BorderSpacing: TControlBorderSpacing; |
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Determines the inner and outer border spacing for this control. |
property BorderWidth: Integer; [rw] |
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BorderWidth - the width of the button's borders |
property ButtonColorAutoSize: Boolean; [rws] |
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ButtonColorAutoSize - returns True if the block displaying button colour is to be autosized |
property ButtonColorSize: Integer; [rw] |
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ButtonColorSize - the size of the button colour block |
property ButtonColor: TColor; [rw] |
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ButtonColor - the colour that has been selected by the ColorDialog and is displayed in the button |
property ColorDialog: TColorDialog; [rw] |
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The ColorDialog that opens when the button is activated |
property Constraints: TSizeConstraints; |
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The minimal and maximal Width and Height of this control. |
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Caption - a string that can be placed beside the block of colour |
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The Color of the control itself, ie the parts that are not the colour display block; edges, background etc |
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property Down: Boolean; |
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The button has been set in the Down state |
property Enabled: Boolean; |
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Determines whether the control reacts on mouse or keyboard input. |
property Flat: Boolean; |
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Whether the button is to be displayed Flat or in relief |
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The font to be used for text display in this control. |
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property GroupIndex: Integer; |
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The Index within the group of speedbuttons |
property Hint: TTranslateString; |
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The text to show in the Hint window for this control. |
property Layout: TButtonLayout; |
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The button layout - Glyph at top, bottom, left or right |
property Margin: Integer; |
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Margin - the space around glyph and caption |
property Spacing: Integer; |
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Spacing between Glyph and Caption |
property Transparent: Boolean; |
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Whether button is transparent |
property Visible: Boolean; |
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Allows to show or hide the control, and all of its children. |
property OnClick: TNotifyEvent; |
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Notification handler for mouse clicks. |
property OnColorChanged: TNotifyEvent; [rw] |
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OnColorChanged - event handler for a change in button colour |
property OnDblClick: TNotifyEvent; |
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Event Handler for double mouse clicks. |
property OnMouseDown: TMouseEvent; |
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Event handler for mouse button going down. |
property OnMouseEnter: TNotifyEvent; |
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property OnMouseLeave: TNotifyEvent; |
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property OnMouseMove: TMouseMoveEvent; |
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Event handler for mouse movement within the control. |
property OnMouseUp: TMouseEvent; |
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Event handler for mouse button going up. |
property OnMouseWheel: TMouseWheelEvent; |
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property OnMouseWheelDown: TMouseWheelUpDownEvent; |
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property OnMouseWheelUp: TMouseWheelUpDownEvent; |
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property OnPaint: TNotifyEvent; |
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Supply your own OnPaint handler for painting the control. |
property OnResize: TNotifyEvent; |
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Notification handler for a resize of the control. |
property OnChangeBounds: TNotifyEvent; |
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Event handler for a change of the Bounds of the control. |
property ShowHint: Boolean; |
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Enables the Hint display. |
property ParentFont: Boolean; |
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If true, the Font of the control will be the same as the one from the Parent. Default is true. |
property ParentShowHint: Boolean; |
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If true, the value of ShowHint for the control will be the same as the one from the Parent. Default is true. |
property PopupMenu: TPopupMenu; |
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A context-sensitive menu that pops up when the right mouse button is clicked over this control |
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TColorButton - a SpeedButton designed to be used with the Color dialog, allowing a colour to be selected for text or graphics |
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The ancestor class for TSpeedButton |
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TGraphicControl is the base class for all lightweight controls. |
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The base class for visible controls. |
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The base class for LCL components associated with widgets. |
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TComponent |
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TObject |
TColorButton - a SpeedButton designed to be used with the Color dialog, allowing a colour to be selected for text or graphics
To use the ColorButton, first select the ColorButton icon from the Component Palette and place it on the Form Designer in the location you want it to occupy, then place a TColorDialog on the Form Designer, give it a name (or accept the default name) and select this named dialog as the ColorDialog property in the Object Inspector for the ColorButton.
The default appearance of the ColorButton is a rectangle containing a colour; if you wish to include a caption beside the block of colour, you may need to adjust the size of the control to accommodate the text, and you can then enter some text in the Caption property of the ColorButton; this text will appear next to the colour block.
After compilation, at runtime the ColorButton is visible with a default or preselected ButtonColor in the block, and any optional caption beside it; the ColorDialog is not visible until the ColorButton is clicked, when the ColorDialog pops up and offers a choice of colours, either from a list or a palette, and if the user makes a selection and closes the dialog by pressing OK, the ColorButton will display the colour that was chosen in the ColorDialog
Note that in the context of ColorButton, properties with the name ButtonColor refer to the colour that has been selected and is displayed in the colour block; properties entitled Color without 'Button' attached refer to the colour of the control itself, usually the same as the background or the default button face colour
lazarus-ccr.sourceforge.net |