Base class for panel-like components that arrange child components in a grid layout. More...

#include <PanelBase.h>

Inheritance diagram for PanelBase:

Public Member Functions
	PanelBase ()
	Constructs a PanelBase instance.
virtual	~PanelBase ()
	Virtual destructor to clean up resources.
void	onWindowMoved ()
	Called when the panel window has moved.
void	onAction (WinHandle hTarget, long actionId, const ProcParams &procParams)
	Handles action events from child components.
void	onSelectionChanged (WinHandle hTarget, int itemIndex, const wstring &itemText, BOOL itemChecked, const ProcParams &procParams)
	Handles selection changed events from child components.
void	onDataChanged (WinHandle hTarget, const wstring &newValue, const ProcParams &procParams)
	Handles data changed events from child components.
BOOL	onHorzScroll (WinHandle hTarget, const ProcParams &procParams)
	Handles horizontal scroll events.
BOOL	onDrawMeasureItem (LPMEASUREITEMSTRUCT dis, const ProcParams &procParams)
	Handles measure item owner-draw events.
BOOL	onDrawItem (LPDRAWITEMSTRUCT dis, const ProcParams &procParams)
	Handles draw item owner-draw events.
Public Member Functions inherited from Component
	Component ()
	Constructs a new Component instance.
virtual	~Component ()
	Virtual destructor.
long	getId ()
	Gets the unique ID assigned to this component.
void	setParent (Component *parent)
Component *	getParent ()
wstring	getComponentType ()
	Gets the component type string.
BOOL	isWindowCreated ()
	Returns whether the native window has been created.
WinHandle	getWindowHandle ()
	Returns the native WinHandle for this component.
int	createComponent (WinHandle hParent, Bounds rect, long nCmd=-1, BOOL isVisible=TRUE)
	Creates the component's native window as a child of hParent.
void	setFont (long fontSize, BOOL isBold=FALSE, BOOL isItalic=FALSE, BOOL isUnderlined=FALSE, const wstring &fontName=L"Arial")
	Sets the font for the component.
void	showBorder (BOOL bShow=TRUE)
void	setEnabled (BOOL bEnable=TRUE)
	Enables or disables the component.
void	setVisible (BOOL bShow=TRUE)
	Shows or hides the component.
void	GetClientRect (Bounds &rect)
void	GetWindowRect (Bounds &rect)
void	moveWindow (long x, long y, long width, long height, BOOL bRedraw=TRUE)
	Moves and resizes the component window.
void	reconfigureScrollBar ()
	Forces the component to recalculate the scrollbar info.
void	setMouseWheelDelta (int delta)
	Sets the accumulated mouse wheel delta.
int	getMouseWheelDelta ()
	Gets the current mouse wheel delta.
virtual int	getMinimumHeight ()
	Returns the minimum height the component can have.
virtual int	getPreferredHeight ()
	Returns the preferred height of the component.
void	repaint (WinHandle hWnd=NULL)
	Requests the component to repaint itself.
void	clearQueuedPaintRequest ()
	clears the queued paint request. This function should only be called internally from the library.
virtual void	onPaint (Graphics *g)
	Called to paint the component's client area.
virtual void	onWindowResized ()
	Called when the component's window is resized.
virtual void	onMousePressed (WinHandle hWnd, int x, int y, int clickCount, BOOL shiftPressed, BOOL ctrlPressed)
	Called when the mouse is pressed within the component.
virtual void	onMouseReleased (WinHandle hWnd, int x, int y, BOOL shiftPressed, BOOL ctrlPressed)
	Called when the mouse button is released within the component.
virtual void	onMouseRightClicked (WinHandle hWnd, int x, int y, BOOL shiftPressed, BOOL ctrlPressed)
	Called when the right mouse button is clicked within the component.
virtual void	onMouseMoved (WinHandle hWnd, int x, int y, BOOL shiftPressed, BOOL ctrlPressed)
	Called when the mouse is moved within the component.
virtual BOOL	onMouseWheel (WinHandle hWnd, int x, int y, int delta)
	Called when the mouse wheel is used over the component.
virtual void	onArrowLeft (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onArrowRight (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onArrowUp (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onArrowDown (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onPageUp (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onPageDown (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onKeyHome (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onKeyEnd (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onKeyInsert (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onKeyDelete (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onKeyBackSpace (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onKeyTyped (wchar_t ch, BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onKeyTab (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onKeyEnter (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onKeyF1 (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onKeyF2 (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onKeyF3 (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onKeyF4 (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onKeyF5 (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onKeyF6 (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onKeyF7 (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onKeyF8 (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onKeyF9 (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onKeyF10 (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onKeyF11 (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onKeyF12 (BOOL shiftPressed, BOOL ctrlPressed)
virtual void	onFocusGained ()
	Called when the component gains keyboard focus.
virtual void	onFocusLost ()
	Called when the component loses keyboard focus.
virtual void	onTimer (unsigned int timerId)
	Called on timer events.
virtual BOOL	getScrollingInfo (__int64 &scrollMin, __int64 &scrollMax, __int64 &pageSize)
	Provides scrolling information if supported.
virtual void	setScrollbarTopOffset (__int64 firstVisibleRow)
	Sets the scrollbar's top offset.
void	updateScrollbarTopOffset (__int64 firstVisibleRow)
	Updates the scrollbar's top offset based on the current first visible row.

Protected Member Functions
BOOL	getCreateWindowOptions (wstring &title, UINT &widownStyles, wstring &wndClassName, BOOL &isCustomWndProc)
	Retrieves window creation options such as window title, styles, and class name.
virtual wstring	getClassName ()=0
	Gets the class name for the window. Must be implemented by derived classes.
Protected Member Functions inherited from Component
virtual void	windowCreated ()=0
	Abstract method called after the window has been created.
long	getActionId ()
	Returns the component's action command ID.
void	doNotSubclass ()
	Marks this component's native window to avoid subclassing.
void	startTimer (unsigned int timerId, unsigned int milliseconds)
	Starts a timer with the given ID and interval.
void	stopTimer (unsigned int timerId)
	Stops the timer identified by timerId.
void	protectedAddDataChangedListener (DataChangeListener *l)
	Adds a data change listener.
void	protectedAddSelectionChangedListener (SelectionChangeListener *l)
	Adds a selection change listener.
void	protectedAddActionListener (ActionListener *l)
	Adds an action listener.
void	protectedAddItemDoubleClickedListener (RowDoubleClickListener *l)
	Adds a row double-click listener.
void	protectedFireDataChangedEvent (const wstring &oldValue, const wstring &newValue)
	Fires a data changed event to registered listeners.
void	protectedFireSelectionChangedEvent (long selectionIndex=-1, const wstring &selectionValue=L"", BOOL checked=FALSE)
	Fires a selection changed event to registered listeners.
void	protectedFireActionEvent (long actionId=-1, const wstring &actionName=L"")
	Fires an action event to registered listeners.
void	protectedFireItemDoubleClickedEvent (__int64 rowIndex)
	Fires a row double-click event to registered listeners.

Protected Attributes
std::vector< PanelBaseChild >	_children
Protected Attributes inherited from Component
WinHandle	_hWnd
	Handle to the native window associated with this component.
wstring	_componentType
	String representing the component type (e.g., "Button", "ComboBox").
BOOL	_showBorder

Detailed Description

Base class for panel-like components that arrange child components in a grid layout.

Inherits from Component. Manages a collection of child components and their layout, and handles common window messages such as actions, selections, and drawing.

Constructor & Destructor Documentation

◆ PanelBase()

PanelBase::PanelBase ( )

Constructs a PanelBase instance.

◆ ~PanelBase()

virtual PanelBase::~PanelBase ( )

virtual

Virtual destructor to clean up resources.

Member Function Documentation

◆ getClassName()

virtual wstring PanelBase::getClassName ( )

protectedpure virtual

Gets the class name for the window. Must be implemented by derived classes.

Returns: wstring Window class name.

Implemented in FluidPanel, and GridPanel.

◆ getCreateWindowOptions()

BOOL PanelBase::getCreateWindowOptions	(	wstring &	title,
		UINT &	widownStyles,
		wstring &	wndClassName,
		BOOL &	isCustomWndProc )

protectedvirtual

Retrieves window creation options such as window title, styles, and class name.

Parameters

title	Reference to store window title.
widownStyles	Reference to store window styles.
wndClassName	Reference to store window class name.
isCustomWndProc	Reference to store whether a custom window procedure is used.

Returns: BOOL TRUE if successful, FALSE otherwise.

Implements Component.

◆ onAction()

void PanelBase::onAction	(	WinHandle	hTarget,
		long	actionId,
		const ProcParams &	procParams )

virtual

Handles action events from child components.

Parameters

hTarget	Handle of the component generating the action.
actionId	The action identifier.
procParams	Additional parameters for the action.

Reimplemented from Component.

◆ onDataChanged()

void PanelBase::onDataChanged	(	WinHandle	hTarget,
		const wstring &	newValue,
		const ProcParams &	procParams )

virtual

Handles data changed events from child components.

Parameters

hTarget	Handle of the component where data changed.
newValue	The new data value.
procParams	Additional parameters.

Reimplemented from Component.

◆ onDrawItem()

BOOL PanelBase::onDrawItem	(	LPDRAWITEMSTRUCT	dis,
		const ProcParams &	procParams )

virtual

Handles draw item owner-draw events.

Parameters

dis	Pointer to DRAWITEMSTRUCT containing drawing info.
procParams	Additional parameters.

Returns: BOOL TRUE if the event was handled, FALSE otherwise.

Reimplemented from Component.

◆ onDrawMeasureItem()

BOOL PanelBase::onDrawMeasureItem	(	LPMEASUREITEMSTRUCT	dis,
		const ProcParams &	procParams )

virtual

Handles measure item owner-draw events.

Parameters

dis	Pointer to MEASUREITEMSTRUCT containing measure info.
procParams	Additional parameters.

Returns: BOOL TRUE if the event was handled, FALSE otherwise.

Reimplemented from Component.

◆ onHorzScroll()

BOOL PanelBase::onHorzScroll	(	WinHandle	hTarget,
		const ProcParams &	procParams )

virtual

Handles horizontal scroll events.

Parameters

hTarget	Handle of the component generating the scroll event.
procParams	Additional parameters.

Returns: BOOL TRUE if the event was handled, FALSE otherwise.

Reimplemented from Component.

◆ onSelectionChanged()

void PanelBase::onSelectionChanged	(	WinHandle	hTarget,
		int	itemIndex,
		const wstring &	itemText,
		BOOL	itemChecked,
		const ProcParams &	procParams )

virtual

Handles selection changed events from child components.

Parameters

hTarget	Handle of the component where selection changed.
itemIndex	Index of the selected item.
itemText	Text of the selected item.
itemChecked	Whether the item is checked.
procParams	Additional parameters.

Reimplemented from Component.

◆ onWindowMoved()

void PanelBase::onWindowMoved ( )

virtual

Called when the panel window has moved.

Reimplemented from Component.

Member Data Documentation

◆ _children

std::vector<PanelBaseChild> PanelBase::_children

protected

List of child components with layout info

The documentation for this class was generated from the following file:

PanelBase.h

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ PanelBase()

◆ ~PanelBase()

Member Function Documentation

◆ getClassName()

◆ getCreateWindowOptions()

◆ onAction()

◆ onDataChanged()

◆ onDrawItem()

◆ onDrawMeasureItem()

◆ onHorzScroll()

◆ onSelectionChanged()

◆ onWindowMoved()

Member Data Documentation

◆ _children