UI class that handles a control with a static image. More...

#include <ff_dialogs.h>

Inheritance diagram for FCCtrlImage:

Public Member Functions
const char *	ClassName () const override
	Returns the name of the class, for diagnostic purposes. This method MUST be overwritten in each child class.

	FCCtrlImage (twobyte id)
	The constructor.

bool	SetImageFromFilePath (const char *path, bool preserveControlSize=false)
	Set the image from a fully qualified file name and path.

bool	SetImageFromBuffer (const onebyte *data, long dataLength, bool preserveControlSize=false)
	Set the image from an input memory buffer.

Public Member Functions inherited from FCControl
	FCControl (twobyte id, const __FCControlTypedPtr &subclassPtr)
	The constructor.

	FCControl (twobyte id)
	The constructor for external C++ subclasses.

virtual	~FCControl ()
	Destructor.

bool	GetPointsMeasurement ()
	Returns if the measurements and positioning is in points or in a system-native unit.

__FCUserWindow *	GetParent () const
	Returns the parent window object for the control.

bool	WindowExists () const
	Returns true if a valid parent window handle (and control handle) is available.

HWND	_GetWinControlHandle () const
	For internal use only. Returns the handle for the control.

virtual void	Repaint ()
	Force a visual update of the control.

int	GetControlID () const
	Returns the control ID for the control.

int	GetAssignedID () const
	Gets the connected ID regardless of platform.

CONTROL_ACTIONS	GetAction () const
	Returns the dialog acction assigned to the control.

void	SetAction (CONTROL_ACTIONS action)
	Sets the dialog acction assigned to the control.

virtual void	SetEnable (bool state)
	Sets the enable/grayed state of the control (if user input should be allowed or not).

virtual bool	GetEnable () const
	Returns the enable/grayed state of the control (if user input should be allowed or not).

virtual void	SetVisible (bool bShow)
	Sets the visibility of the control.

virtual void	SetBold (bool state)
	Sets the boldface appearance for the control.

virtual void	SetFont (const FCFontInfo *fontInfo)
	Sets the font information for the text of the control.

virtual FCFontInfo *	CreateFontInfo () const
	Creates font information from the current text font of the control.

virtual void	SetKeyboardFocus ()
	Sets the keyboard focus to the control.

void	SetTextAndResize (FCString *pString)
	Cocoa only: Sets the text and resizes the view inside a NSScrollView.

virtual bool	AssureWidthForText ()
	Lengthens the width of the control to the extent necessary to display all the text in the control.

void	AssureNoHorizontalOverlap (const FCControl &control, int padding)
	Shift the control right as needed to the extent necessary so that its GetLeft position will accommodate the width of the specified control plus the specified padding. You can call this function with more than one reference control.

void	HorizontallyAlignLeftWith (const FCControl *pControl, double offset=0)
	Specifies a control with which to horizontally align left. All controls set to align with this control align at the location of the one with the largest GetLeft value. This function replaces any previous horizontal alignment options.

void	HorizontallyAlignRightWith (const FCControl *pControl, double offset=0)
	Specifies a control with which to horizontally align right. All controls set to align with this control align at the location of the one with the largest right value (GetLeft + GetWidth). This function replaces any previous horizontal alignment options.

void	HorizontallyAlignRightWithFurthest (double offset=0)
	Specifies that this control should align with the control that extends furthest to the right. Calling this function replaces any other control that has been set for horizontal alignment.

void	DoAutoResizeWidth (std::optional< double > minimumwidth=std::nullopt)
	Sets the autoresize width option for the control. When this value is set, the control calls AssureWidthForText automatically when the window initializes and every time SetText is called while the window is running.

void	StretchToAlignWithRight ()
	Sets a control to stretch its width to align with the furthest right control.

virtual void	SetText (const FCString *pString)
	Sets the text for the control.

virtual void	GetText (FCString *pString) const
	Gets the text of the control.

void	SetLeft (float pos)
	Sets the left position of the control.

float	GetLeft ()
	Returns the left position of the control.

void	SetTop (float pos)
	Sets the top position of the control.

float	GetTop ()
	Returns the top position of the control.

float	GetHeight ()
	Returns the height of the control.

float	GetWidth ()
	Returns the width of the control.

bool	GetVisible ()
	Returns the visibility state of a control.

void	SetWidth (float width)
	Sets the width of the control.

void	SetHeight (float height)
	Sets the height of the control.

void	MoveRelative (float horizmove, float vertmove)
	Moves the control relatively to the current position.

void	MoveAbsolute (float x, float y)
	Moves the control in absolute coordinates.

virtual void	ResizeRelative (float horizresize, float vertresize)
	Resizes the control relatively to the current size. Top left corner will stay fixed.

bool	RedrawImmediate () const
	Redraws the control immediately. Calling this allows your program that has blocked the main thread to show immediate results without relinquishing control back to the operating system.

Public Member Functions inherited from __FCBase
virtual const PDKFRAMEWORK_CLASSID	GetClassID () const
	Returns the internal class ID for the PDK Framework class. This is implemented mostly because Lua has problems to resolve the true classes of inherited objects.

virtual	~__FCBase ()
	Virtual destructor, so all inherited classes get the virtual destructor.

void	DebugMsgInt (const char *pszPrefixText, int i)
	Creates a simple Message Box for debug purposes. The text appears with the extra digit (in decimal presentation) appearing afterwards.

void	DebugMsgHex (const char *pszPrefixText, int i)
	Creates a simple Message Box for debug purposes. The text appears with the extra digit (as a hexadecimal number) appearing afterwards.

void	DebugMsgString (const char pszPrefixText, const char thestring)
	Creates a simple Message Box for debug purposes. The text appears with the extra string appearing afterwards.

void	DebugMsg (const char *pszMsg)
	Creates a simple Message Box for debug purposes with just one text string.

void	DebugOutMenuInfo (FCUI *pUI, int menuixd_horiz, int menuixd_vert) const
	Outputs the menu command info for debugging purposes.

int	DebugOutFormat (const char *fmt,...)
	Outputs debug text using C style "printf" syntax.

virtual void	DebugDump ()
	Outputs the class data/information for debugging purposes.

virtual void	DebugDataDump ()
	Outputs a memory dump of the data block in the object for debugging purposes.

virtual void	DebugDataByteArrayDump ()
	Outputs a memory dump of the data block in the object for debugging purposes, as a C++ byte array.

void	Set16BitFlag (FLAG_16 *flag, FLAG_16 flagbits, bool state)
	Sets a 16 bit flag.

void	Set32BitFlag (FLAG_32 *flag, FLAG_32 flagbits, bool state)
	Sets/resets a 32 bit flag, by using a bit mask.

bool	GetBitFlag (FLAG_32 flag, FLAG_32 flagbits) const
	Gets a state from flag bits. Returns true if any bit in the mask is set.

int	GetBitCount (FLAG_32 flag)
	Returns the total number of set bits in a 32-bit unsigned int.

void	SetSpecific32Bit (FLAG_32 *flag, int bitnumber, bool state)
	Sets/resets a single bit in a 32 bit flag, by specifying one specific bit.

void	SetUserData (void *pData)
	Sets the user data attached to the instance of an object.

void	SetUserData2 (void *pData)
	Sets the additional user data attached to the instance of an object.

void *	GetUserData () const
	Gets the user data attached to the instance of an object.

void *	GetUserData2 () const
	Gets the additional user data attached to the instance of an object.

virtual bool	IsIdentical (const __FCBase *pCompareObject) const
	Returns true if the data in the passed object is considered to be identical to the current object, otherwise false.

void	StoreXML_String (tinyxml2::XMLElement pParentNode, const char pszElementName, FCString *pStringValue)
	Helper function to store FCString objects in the XML file.

void	StoreXML_Integer (tinyxml2::XMLElement pParentNode, const char pszElementName, int value)
	Helper function to store integer objects in the XML file.

void	StoreXML_Bool (tinyxml2::XMLElement pParentNode, const char pszElementName, bool value)
	Helper function to store boolean objects in the XML file.

void	StoreXML_StringAttribute (tinyxml2::XMLElement pNode, const char pszAttributeName, FCString *pStringValue)
	Helper function to store FCString objects in the XML file, as an attribute to a node.

void	StoreXML_IntegerAttribute (tinyxml2::XMLElement pNode, const char pszAttributeName, int value)
	Helper function to store integer objects in the XML file, as an attribute to a node.

void	StoreXML_BoolAttribute (tinyxml2::XMLElement pNode, const char pszAttributeName, bool value)
	Helper function to store boolean objects in the XML file, as an attribute to a node.

void	StoreXML_FloatAttribute (tinyxml2::XMLElement pNode, const char pszAttributeName, float value)
	Helper function to store floating point objects in the XML file, as an attribute to a node.

virtual void	StoreToXML (tinyxml2::XMLElement *pParentNode)
	Virtual method that is used to store an object's data.

bool	ReadXML_String (tinyxml2::XMLElement pParentNode, const char pszElementName, FCString *pStringValue)
	Helper method to read FCString objects from the XML file.

bool	ReadXML_Integer (tinyxml2::XMLElement pParentNode, const char pszElementName, int *pValue)
	Helper method to read integer objects from the XML file.

bool	ReadXML_Bool (tinyxml2::XMLElement pParentNode, const char pszElementName, bool *pValue)
	Helper method to read boolean objects from the XML file.

bool	ReadXML_StringAttribute (tinyxml2::XMLElement pNode, const char pszAttributeName, FCString *pStringValue)
	Helper method to read FCString objects from the XML file, as an attribute to a node.

bool	ReadXML_IntegerAttribute (tinyxml2::XMLElement pNode, const char pszAttributeName, int *pValue)
	Helper method to read integer objects from the XML file, as an attribute to a node.

bool	ReadXML_BoolAttribute (tinyxml2::XMLElement pNode, const char pszAttributeName, bool *pValue)
	Helper method to read boolean objects from the XML file, as an attribute to a node.

bool	ReadXML_FloatAttribute (tinyxml2::XMLElement pNode, const char pszAttributeName, float *pValue)
	Helper method to read floating point objects from the XML file, as an attribute to a node.

virtual bool	ReadFromXML (tinyxml2::XMLElement *pParentNode)
	Virtual method that is used to read object data.

Additional Inherited Members
Public Types inherited from FCControl
enum	CONTROL_ACTIONS { ACTION_NONE = 0 , ACTION_OK = 1 , ACTION_CLOSE = 2 , ACTION_CANCEL = 3 }
	Predefined actions for controls. More...

Public Types inherited from __FCBase
enum	PDKFRAMEWORK_CLASSID { FCID_UNKNOWN = 0 , FCID_ACCIDENTALMOD , FCID_ACTIVELYRIC , FCID_ALLOTMENT , FCID_ARTICULATION , FCID_ARTICULATIONDEF , FCID_BACKWARDREPEAT , FCID_BASELINE , FCID_BEAMMOD , FCID_BEATCHARTELEMENT , FCID_BOOKMARK , FCID_BROKENBEAMMOD , FCID_CATEGORYDEF , FCID_CELLCLEFCHANGE , FCID_CELLFRAMEHOLD , FCID_CELLGRAPHIC , FCID_CELLTEXT , FCID_CENTERSMARTSHAPE , FCID_CHORD , FCID_CHORDPREFS , FCID_CHORDSUFFIXELEMENT , FCID_CHORUSSYLLABLE , FCID_CLEFDEF , FCID_COMPOSITETIMESIGBOTTOMELEMENT , FCID_COMPOSITETIMESIGTOPELEMENT , FCID_CROSSSTAFFMOD , FCID_CUSTOMSMARTLINEDEF , FCID_CUSTOMSTEMMOD , FCID_DISTANCEPREFS , FCID_DOTMOD , FCID_ENCLOSURE , FCID_ENDINGREPEAT , FCID_ENIGMATEXTSTYLE , FCID_ENTRYALTERMOD , FCID_EXECUTABLESHAPEDEF , FCID_EXPRESSION , FCID_FONTINFO , FCID_FONTPREFS , FCID_FREEZESYSTEM , FCID_FRETBOARDSTYLEDEF , FCID_FRETBOARDSTYLEDEFS , FCID_FRETBOARDGROUPDEF , FCID_FRETBOARDGROUPDEFS , FCID_FRETINSTRUMENTDEF , FCID_GENERALPREFS , FCID_GRIDSGUIDESPREFS , FCID_GROUP , FCID_GROUPNAMEPOSITIONPREFS , FCID_HUMANPLAYBACKPREFS , FCID_INDEPENDENTCELLDETAIL , FCID_INSTRUMENTDEF , FCID_INSTRUMENTPLAYBACKDATA , FCID_KEYMODEDEF , FCID_KEYSIGNATURE , FCID_LAYERPREFS , FCID_LYRICSBASELINE , FCID_LYRICSPREFS , FCID_MEASURE , FCID_MEASURENUMBERREGION , FCID_METATOOLASSIGNMENT , FCID_MIDIEXPRESSION , FCID_MISCDOCPREFS , FCID_MULTIMEASUREREST , FCID_MULTIMEASURERESTPREFS , FCID_MULTISTAFFINSTRUMENT , FCID_MULTISTAFFINSTRUMENTS , FCID_MUSICCHARACTERPREFS , FCID_MUSICSPACINGPREFS , FCID_NUMBER , FCID_NOTEHEADMOD , FCID_OTHERINCI , FCID_PERCUSSIONLAYOUTNOTE , FCID_PERCUSSIONSTAFF , FCID_PERFORMANCEMOD , FCID_PAGE , FCID_PAGEFORMATPREFS , FCID_PAGEGRAPHIC , FCID_PAGETEXT , FCID_PART , FCID_PARTEXTRACTPREFS , FCID_PARTSCOPEPREFS , FCID_PARTSTAFFVOICING , FCID_PERCUSSIONNOTEMOD , FCID_PIANOBRACEPREFS , FCID_PLAYBACKPREFS , FCID_RAWTEXT , FCID_REPEATPREFS , FCID_SECONDARYBEAMBREAKMOD , FCID_BEAMEXTENSIONMOD , FCID_SECTIONSYLLABLE , FCID_SEPARATEMEASURENUMBER , FCID_SEPARATEPLACEMENT , FCID_SHAPEDEF , FCID_SHAPEEXPRESSIONDEF , FCID_SLURCONTOURPREFS , FCID_SIZEPREFS , FCID_SMARTSHAPE , FCID_SMARTSHAPEENTRYMARK , FCID_SMARTSHAPEMEASUREMARK , FCID_SMARTSHAPEPREFS , FCID_STAFF , FCID_STAFFLIST , FCID_STAFFNAMEPOSITION , FCID_STAFFNAMEPOSITIONPREFS , FCID_STAFFSTYLEASSIGN , FCID_STAFFSTYLEDEF , FCID_STAFFSYSTEM , FCID_STEMCONNECTIONTABLE , FCID_STEMMOD , FCID_STRING , FCID_SYLLABLEENTRYMOD , FCID_SYSTEMSTAFF , FCID_TABLATURENOTEMOD , FCID_TEMPOELEMENT , FCID_TEXTBLOCK , FCID_TEXTEXPRESSIONDEF , FCID_TEXTREPEAT , FCID_TEXTREPEATDEF , FCID_TIEMOD , FCID_TIEPREFS , FCID_TIECONTOURPREFS , FCID_TIEPLACEMENTPREFS , FCID_TIMESIGNATURE , FCID_TUPLET , FCID_TUPLETPREFS , FCID_VERSESYLLABLE }
	Constants for the GetClassID method. More...

enum	MEASUREMENTUNITS { MEASUREMENTUNIT_DEFAULT = UNIT_DEFAULT , MEASUREMENTUNIT_EVPUS = UNIT_EVPUS , MEASUREMENTUNIT_INCHES = UNIT_INCHES , MEASUREMENTUNIT_CENTIMETERS = UNIT_CENTS , MEASUREMENTUNIT_POINTS = UNIT_POINTS , MEASUREMENTUNIT_PICAS = UNIT_PICAS , MEASUREMENTUNIT_SPACES = UNIT_SPACES , MEASUREMENTUNIT_MILLIMETERS = 100 }
	Constants for Finale's standard measurement units. More...

Static Public Member Functions inherited from __FCBase
static void	DebugOutPtr (const char pszPrefixText, void ptr)
	Static method that outputs a line for debugging purposes. The prefix text appears with the extra ptr (in hexadeximal representation) appearing afterwards.

static void	DebugOutInt (const char *pszPrefixText, int i)
	Static method that outputs a line for debugging purposes. The text appears with the extra digit (in decimal presentation) appearing afterwards.

static void	DebugOutFloat (const char *pszPrefixText, double f)
	Static method that outputs a line for debugging purposes. The text appears with the extra float value appearing afterwards.

static void	DebugOutTag (const char *pszPrefixText, EXTAG extag)
	Static method that outputs a line for debugging purposes. The text appears with the EXTAG (in text) appearing afterwards.

static void	DebugOutHex (const char *pszPrefixText, int i)
	Static method that outputs a line for debugging purposes. The text appears with the extra digit (in hexadecimal presentation) appearing afterwards.

static void	DebugOutBin (const char *pszPrefixText, int i)
	Static method that outputs a line for debugging purposes. The text appears with the extra digit (in binary presentation) appearing afterwards.

static void	DebugOutString (const char pszPrefixText, const char thestring)
	Static method that outputs a line for debugging purposes (C string version). The text appears with the extra string appearing afterwards.

static void	DebugOutString (const char pszPrefixText, FCString pString)
	Static method that outputs a line for debugging purposes (FCString version). The text appears with the extra string appearing afterwards.

static void	DebugOutBool (const char *pszPrefixText, bool state)
	Static method that outputs a line for debugging purposes. The boolean state appears afterwards as either "TRUE" or "FALSE".

static void	DebugOutBlock (const void *pBuffer, int startoffset, int size)
	Static method that outputs a memory block for debugging purposes. Eight bytes per line will appear (as hex digits) until the whole memory block is dumped.

static void	DebugOutByteArrayBlock (const void *pBuffer, int startoffset, int size)
	Static method that outputs a memory block for debugging purposes. Eight bytes per line will appear (as hex digits) as a C++ onebyte array, until the whole memory block is dumped.

static void	DebugOut (const char *pszLine)
	Static method to output a line of text for debugging purposes.

Protected Member Functions inherited from __FCBase
	__FCBase ()
	The constructor.

Detailed Description

UI class that handles a control with a static image.

Programmatically created controls of this class default to the size of the assigned image or 100x100 points if none. When a new image is assigned, the control changes size to match the new image. If it has a different size than the previous image and the dialog box is already running, this happens visibly. You can opt to keep the size of the control constant with the optional preserveControlSize parameter when you set the image. (More information is at SetImageFromFilePath.)

The SetWidth and SetHeight methods can be used to change the size of the control to a size other than that of the image. However, Windows and macOS react differently if you do so after the window is running. If you need to manage the size of the control yourself, you will achieve the best results by immediately setting a new image after changing the control's size. This leads to the most consistent behavior across both platforms.

Another way to achieve better platform consistency is only to use images that have been properly annotated with DPI and size information. For example, Apple Preview encodes this information when it saves an image. As long as it is set in the image, the control should display the image at the specified size on both platforms. Generally speaking, the closer to native resolution you display the image, the happier you will be.

Requires PDK_FRAMEWORK_IMAGECTRL to be defined. This is because the Windows implementation requires gdiplus.lib to be included in the link libraries.

Member Function Documentation

◆ ClassName()

const char * FCCtrlImage::ClassName ( ) const

inlineoverridevirtual

Returns the name of the class, for diagnostic purposes. This method MUST be overwritten in each child class.

Lua-supported.

Reimplemented from FCControl.

◆ SetImageFromBuffer()

bool FCCtrlImage::SetImageFromBuffer	(	const onebyte *	data,
		long	dataLength,
		bool	preserveControlSize = false )

inline

Set the image from an input memory buffer.

See remarks at SetImageFromFilePath for more details.

One way to get a buffer in memory is to read it directly as a binary file from one of the standard image formats supported on Windows or macOS. Another might be to download it from a URL.

Lua-supported (0.64)

Parameters

data	A buffer containing the image data. This is not a text string.
dataLength	The length of the buffer containing image data.
preserveControlSize	parameter (optional) that tells the control not to resize to the image. (Defaults to false.)

Returns: true if the image was loaded.

◆ SetImageFromFilePath()

bool FCCtrlImage::SetImageFromFilePath	(	const char *	path,
		bool	preserveControlSize = false )

inline

Set the image from a fully qualified file name and path.

Remarks: This function changes the size of the control to match the size of the image unless preserveControlSize is true. If the control has never been sized, either by setting an image or by setting both SetWidth and SetHeight, the preserveControlSize parameter is ignored and the control is set to the size of the image.; You can replace the image while the dialog box is running, but it is recommended that you always replace it with an image of the same size or pass true for preserveControlSize. Otherwise the control visibly changes size when you set the new image.

Standard image file types are supported for both Windows and macOS.