Chart Class Reference

A versatile UI component for displaying various types of charts (bar, pie, line, etc.). More...

#include <Chart.h>

Inheritance diagram for Chart:

Public Member Functions
	Chart ()
	Constructs a new Chart instance.
virtual	~Chart ()
	Destroys the Chart instance.
void	setType (const ChartType &chartType)
	Sets the chart type to be displayed.
void	showTypeToggleButtons (BOOL bShow)
	Shows or hides chart type toggle buttons.
void	setCategories (const vector< wstring > &xAxisValues)
	Sets the categories (e.g., x-axis labels) for the chart.
void	addSeries (const wstring &seriesName, COLORREF seriesColor)
	Adds a new data series to the chart.
void	addSeriesValue (const wstring &seriesName, double value, COLORREF color)
	Adds a value to an existing series.
void	onPaint (Graphics *g)
	Renders the chart to the given device context.
void	onWindowResized ()
	Called when the window is resized.
void	onSelectionChanged (const SelectionChangeEvent &ev)
	Handles selection change events, typically triggered by user interaction.
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	onWindowMoved ()
	Called when the component's window is moved.
virtual void	onAction (WinHandle hTarget, long actionId, const ProcParams &procParams)
	Called when an action occurs on the component.
virtual void	onSelectionChanged (WinHandle hTarget, int itemIndex, const wstring &itemText, BOOL itemChecked, const ProcParams &procParams)
	Called when the selection changes.
virtual void	onDataChanged (WinHandle hTarget, const wstring &newValue, const ProcParams &procParams)
	Called when data changes in the component.
virtual BOOL	onHorzScroll (WinHandle hTarget, const ProcParams &procParams)
	Called on horizontal scroll events.
virtual BOOL	onDrawMeasureItem (LPMEASUREITEMSTRUCT dis, const ProcParams &procParams)
	Called when measuring an item for owner-draw controls.
virtual BOOL	onDrawItem (LPDRAWITEMSTRUCT dis, const ProcParams &procParams)
	Called when drawing an item for owner-draw controls.
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 title, style, and class name.
void	windowCreated ()
	Called after the chart window has been created.
Protected Member Functions inherited from Component
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.

Additional Inherited Members
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

A versatile UI component for displaying various types of charts (bar, pie, line, etc.).

Inherits from Component and implements SelectionChangeListener. Supports dynamic addition of chart series, categories, and values, along with optional chart type toggle buttons.

Constructor & Destructor Documentation

Chart()

Chart::Chart

(

)

Constructs a new Chart instance.

~Chart()

virtual Chart::~Chart ( )

virtual

Destroys the Chart instance.

Member Function Documentation

addSeries()

void Chart::addSeries	(	const wstring &	seriesName,
		COLORREF	seriesColor )

Adds a new data series to the chart.

Parameters

seriesName	Name of the series.
seriesColor	Color of the series.

addSeriesValue()

void Chart::addSeriesValue	(	const wstring &	seriesName,
		double	value,
		COLORREF	color )

Adds a value to an existing series.

Parameters

seriesName	Name of the series to which the value should be added.
value	The value to add.
color	Optional color override for the individual value.

getCreateWindowOptions()

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

protectedvirtual

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

Parameters

title	Output: the window title.
widownStyles	Output: the window style flags.
wndClassName	Output: the class name for the window.
isCustomWndProc	Output: whether a custom window procedure is used.

Returns

TRUE if options were successfully retrieved, FALSE otherwise.

Implements Component.

onPaint()

void Chart::onPaint ( Graphics * g )

virtual

Renders the chart to the given device context.

Parameters

hDC	Handle to the device context used for drawing.

Reimplemented from Component.

onSelectionChanged()

void Chart::onSelectionChanged ( const SelectionChangeEvent & ev )

virtual

Handles selection change events, typically triggered by user interaction.

Parameters

ev	The selection change event object.

Implements SelectionChangeListener.

onWindowResized()

void Chart::onWindowResized ( )

virtual

Called when the window is resized.

Reimplemented from Component.

setCategories()

void Chart::setCategories

(

const vector< wstring > &

xAxisValues

)

Sets the categories (e.g., x-axis labels) for the chart.

Parameters

xAxisValues

A list of category labels.

setType()

void Chart::setType

(

const ChartType &

chartType

)

Sets the chart type to be displayed.

Parameters

chartType

One of the CHARTTYPE_* constants.

showTypeToggleButtons()

void Chart::showTypeToggleButtons

(

BOOL

bShow

)

Shows or hides chart type toggle buttons.

Parameters

bShow

TRUE to show toggle buttons, FALSE to hide them.

windowCreated()

void Chart::windowCreated ( )

protectedvirtual

Called after the chart window has been created.

Implements Component.

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

• Chart.h